Move WebExtensions enabled Add-ons Manager

994 files changed, 126566 insertions, 0 deletions

diff --git a/toolkit/mozapps/webextensions/.eslintrc.js b/toolkit/mozapps/webextensions/.eslintrc.js
new file mode 100644
index 000000000..2b90bd053
--- /dev/null
+++ b/toolkit/mozapps/webextensions/.eslintrc.js
@@ -0,0 +1,8 @@
+"use strict";
+
+module.exports = { // eslint-disable-line no-undef
+  "rules": {
+    // No using undeclared variables
+    "no-undef": "error",
+  }
+};
diff --git a/toolkit/mozapps/webextensions/AddonContentPolicy.cpp b/toolkit/mozapps/webextensions/AddonContentPolicy.cpp
new file mode 100644
index 000000000..90e53b2ea
--- /dev/null
+++ b/toolkit/mozapps/webextensions/AddonContentPolicy.cpp
@@ -0,0 +1,478 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "AddonContentPolicy.h"
+
+#include "mozilla/dom/nsCSPUtils.h"
+#include "nsCOMPtr.h"
+#include "nsContentPolicyUtils.h"
+#include "nsContentTypeParser.h"
+#include "nsContentUtils.h"
+#include "nsIConsoleService.h"
+#include "nsIContentSecurityPolicy.h"
+#include "nsIContent.h"
+#include "nsIDocument.h"
+#include "nsIEffectiveTLDService.h"
+#include "nsIScriptError.h"
+#include "nsIStringBundle.h"
+#include "nsIUUIDGenerator.h"
+#include "nsIURI.h"
+#include "nsNetCID.h"
+#include "nsNetUtil.h"
+
+using namespace mozilla;
+
+/* Enforces content policies for WebExtension scopes. Currently:
+ *
+ *  - Prevents loading scripts with a non-default JavaScript version.
+ *  - Checks custom content security policies for sufficiently stringent
+ *    script-src and object-src directives.
+ */
+
+#define VERSIONED_JS_BLOCKED_MESSAGE \
+  u"Versioned JavaScript is a non-standard, deprecated extension, and is " \
+  u"not supported in WebExtension code. For alternatives, please see: " \
+  u"https://developer.mozilla.org/Add-ons/WebExtensions/Tips"
+
+AddonContentPolicy::AddonContentPolicy()
+{
+}
+
+AddonContentPolicy::~AddonContentPolicy()
+{
+}
+
+NS_IMPL_ISUPPORTS(AddonContentPolicy, nsIContentPolicy, nsIAddonContentPolicy)
+
+static nsresult
+GetWindowIDFromContext(nsISupports* aContext, uint64_t *aResult)
+{
+  NS_ENSURE_TRUE(aContext, NS_ERROR_FAILURE);
+
+  nsCOMPtr<nsIContent> content = do_QueryInterface(aContext);
+  NS_ENSURE_TRUE(content, NS_ERROR_FAILURE);
+
+  nsCOMPtr<nsIDocument> document = content->OwnerDoc();
+  NS_ENSURE_TRUE(document, NS_ERROR_FAILURE);
+
+  nsCOMPtr<nsPIDOMWindowInner> window = document->GetInnerWindow();
+  NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);
+
+  *aResult = window->WindowID();
+  return NS_OK;
+}
+
+static nsresult
+LogMessage(const nsAString &aMessage, nsIURI* aSourceURI, const nsAString &aSourceSample,
+           nsISupports* aContext)
+{
+  nsCOMPtr<nsIScriptError> error = do_CreateInstance(NS_SCRIPTERROR_CONTRACTID);
+  NS_ENSURE_TRUE(error, NS_ERROR_OUT_OF_MEMORY);
+
+  nsCString sourceName = aSourceURI->GetSpecOrDefault();
+
+  uint64_t windowID = 0;
+  GetWindowIDFromContext(aContext, &windowID);
+
+  nsresult rv =
+    error->InitWithWindowID(aMessage, NS_ConvertUTF8toUTF16(sourceName),
+                            aSourceSample, 0, 0, nsIScriptError::errorFlag,
+                            "JavaScript", windowID);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIConsoleService> console = do_GetService(NS_CONSOLESERVICE_CONTRACTID);
+  NS_ENSURE_TRUE(console, NS_ERROR_OUT_OF_MEMORY);
+
+  console->LogMessage(error);
+  return NS_OK;
+}
+
+
+// Content policy enforcement:
+
+NS_IMETHODIMP
+AddonContentPolicy::ShouldLoad(uint32_t aContentType,
+                               nsIURI* aContentLocation,
+                               nsIURI* aRequestOrigin,
+                               nsISupports* aContext,
+                               const nsACString& aMimeTypeGuess,
+                               nsISupports* aExtra,
+                               nsIPrincipal* aRequestPrincipal,
+                               int16_t* aShouldLoad)
+{
+  MOZ_ASSERT(aContentType == nsContentUtils::InternalContentPolicyTypeToExternal(aContentType),
+             "We should only see external content policy types here.");
+
+  *aShouldLoad = nsIContentPolicy::ACCEPT;
+
+  if (!aRequestOrigin) {
+    return NS_OK;
+  }
+
+  // Only apply this policy to requests from documents loaded from
+  // moz-extension URLs, or to resources being loaded from moz-extension URLs.
+  bool equals;
+  if (!((NS_SUCCEEDED(aContentLocation->SchemeIs("moz-extension", &equals)) && equals) ||
+        (NS_SUCCEEDED(aRequestOrigin->SchemeIs("moz-extension", &equals)) && equals))) {
+    return NS_OK;
+  }
+
+  if (aContentType == nsIContentPolicy::TYPE_SCRIPT) {
+    NS_ConvertUTF8toUTF16 typeString(aMimeTypeGuess);
+    nsContentTypeParser mimeParser(typeString);
+
+    // Reject attempts to load JavaScript scripts with a non-default version.
+    nsAutoString mimeType, version;
+    if (NS_SUCCEEDED(mimeParser.GetType(mimeType)) &&
+        nsContentUtils::IsJavascriptMIMEType(mimeType) &&
+        NS_SUCCEEDED(mimeParser.GetParameter("version", version))) {
+      *aShouldLoad = nsIContentPolicy::REJECT_REQUEST;
+
+      LogMessage(NS_MULTILINE_LITERAL_STRING(VERSIONED_JS_BLOCKED_MESSAGE),
+                 aRequestOrigin, typeString, aContext);
+      return NS_OK;
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AddonContentPolicy::ShouldProcess(uint32_t aContentType,
+                                  nsIURI* aContentLocation,
+                                  nsIURI* aRequestOrigin,
+                                  nsISupports* aRequestingContext,
+                                  const nsACString& aMimeTypeGuess,
+                                  nsISupports* aExtra,
+                                  nsIPrincipal* aRequestPrincipal,
+                                  int16_t* aShouldProcess)
+{
+  MOZ_ASSERT(aContentType == nsContentUtils::InternalContentPolicyTypeToExternal(aContentType),
+             "We should only see external content policy types here.");
+
+  *aShouldProcess = nsIContentPolicy::ACCEPT;
+  return NS_OK;
+}
+
+
+// CSP Validation:
+
+static const char* allowedSchemes[] = {
+  "blob",
+  "filesystem",
+  nullptr
+};
+
+static const char* allowedHostSchemes[] = {
+  "https",
+  "moz-extension",
+  nullptr
+};
+
+/**
+ * Validates a CSP directive to ensure that it is sufficiently stringent.
+ * In particular, ensures that:
+ *
+ *  - No remote sources are allowed other than from https: schemes
+ *
+ *  - No remote sources specify host wildcards for generic domains
+ *    (*.blogspot.com, *.com, *)
+ *
+ *  - All remote sources and local extension sources specify a host
+ *
+ *  - No scheme sources are allowed other than blob:, filesystem:,
+ *    moz-extension:, and https:
+ *
+ *  - No keyword sources are allowed other than 'none', 'self', 'unsafe-eval',
+ *    and hash sources.
+ */
+class CSPValidator final : public nsCSPSrcVisitor {
+  public:
+    CSPValidator(nsAString& aURL, CSPDirective aDirective, bool aDirectiveRequired = true) :
+      mURL(aURL),
+      mDirective(CSP_CSPDirectiveToString(aDirective)),
+      mFoundSelf(false)
+    {
+      // Start with the default error message for a missing directive, since no
+      // visitors will be called if the directive isn't present.
+      if (aDirectiveRequired) {
+        FormatError("csp.error.missing-directive");
+      }
+    }
+
+    // Visitors
+
+    bool visitSchemeSrc(const nsCSPSchemeSrc& src) override
+    {
+      nsAutoString scheme;
+      src.getScheme(scheme);
+
+      if (SchemeInList(scheme, allowedHostSchemes)) {
+        FormatError("csp.error.missing-host", scheme);
+        return false;
+      }
+      if (!SchemeInList(scheme, allowedSchemes)) {
+        FormatError("csp.error.illegal-protocol", scheme);
+        return false;
+      }
+      return true;
+    };
+
+    bool visitHostSrc(const nsCSPHostSrc& src) override
+    {
+      nsAutoString scheme, host;
+
+      src.getScheme(scheme);
+      src.getHost(host);
+
+      if (scheme.LowerCaseEqualsLiteral("https")) {
+        if (!HostIsAllowed(host)) {
+          FormatError("csp.error.illegal-host-wildcard", scheme);
+          return false;
+        }
+      } else if (scheme.LowerCaseEqualsLiteral("moz-extension")) {
+        // The CSP parser silently converts 'self' keywords to the origin
+        // URL, so we need to reconstruct the URL to see if it was present.
+        if (!mFoundSelf) {
+          nsAutoString url(u"moz-extension://");
+          url.Append(host);
+
+          mFoundSelf = url.Equals(mURL);
+        }
+
+        if (host.IsEmpty() || host.EqualsLiteral("*")) {
+          FormatError("csp.error.missing-host", scheme);
+          return false;
+        }
+      } else if (!SchemeInList(scheme, allowedSchemes)) {
+        FormatError("csp.error.illegal-protocol", scheme);
+        return false;
+      }
+
+      return true;
+    };
+
+    bool visitKeywordSrc(const nsCSPKeywordSrc& src) override
+    {
+      switch (src.getKeyword()) {
+      case CSP_NONE:
+      case CSP_SELF:
+      case CSP_UNSAFE_EVAL:
+        return true;
+
+      default:
+        NS_ConvertASCIItoUTF16 keyword(CSP_EnumToKeyword(src.getKeyword()));
+
+        FormatError("csp.error.illegal-keyword", keyword);
+        return false;
+      }
+    };
+
+    bool visitNonceSrc(const nsCSPNonceSrc& src) override
+    {
+      FormatError("csp.error.illegal-keyword", NS_LITERAL_STRING("'nonce-*'"));
+      return false;
+    };
+
+    bool visitHashSrc(const nsCSPHashSrc& src) override
+    {
+      return true;
+    };
+
+    // Accessors
+
+    inline nsAString& GetError()
+    {
+      return mError;
+    };
+
+    inline bool FoundSelf()
+    {
+      return mFoundSelf;
+    };
+
+
+    // Formatters
+
+    template <typename... T>
+    inline void FormatError(const char* aName, const T ...aParams)
+    {
+      const char16_t* params[] = { mDirective.get(), aParams.get()... };
+      FormatErrorParams(aName, params, MOZ_ARRAY_LENGTH(params));
+    };
+
+  private:
+    // Validators
+
+    bool HostIsAllowed(nsAString& host)
+    {
+      if (host.First() == '*') {
+        if (host.EqualsLiteral("*") || host[1] != '.') {
+          return false;
+        }
+
+        host.Cut(0, 2);
+
+        nsCOMPtr<nsIEffectiveTLDService> tldService =
+          do_GetService(NS_EFFECTIVETLDSERVICE_CONTRACTID);
+
+        if (!tldService) {
+          return false;
+        }
+
+        NS_ConvertUTF16toUTF8 cHost(host);
+        nsAutoCString publicSuffix;
+
+        nsresult rv = tldService->GetPublicSuffixFromHost(cHost, publicSuffix);
+
+        return NS_SUCCEEDED(rv) && !cHost.Equals(publicSuffix);
+      }
+
+      return true;
+    };
+
+    bool SchemeInList(nsAString& scheme, const char** schemes)
+    {
+      for (; *schemes; schemes++) {
+        if (scheme.LowerCaseEqualsASCII(*schemes)) {
+          return true;
+        }
+      }
+      return false;
+    };
+
+
+    // Formatters
+
+    already_AddRefed<nsIStringBundle>
+    GetStringBundle()
+    {
+      nsCOMPtr<nsIStringBundleService> sbs =
+        mozilla::services::GetStringBundleService();
+      NS_ENSURE_TRUE(sbs, nullptr);
+
+      nsCOMPtr<nsIStringBundle> stringBundle;
+      sbs->CreateBundle("chrome://global/locale/extensions.properties",
+                        getter_AddRefs(stringBundle));
+
+      return stringBundle.forget();
+    };
+
+    void FormatErrorParams(const char* aName, const char16_t** aParams, int32_t aLength)
+    {
+      nsresult rv = NS_ERROR_FAILURE;
+
+      nsCOMPtr<nsIStringBundle> stringBundle = GetStringBundle();
+
+      if (stringBundle) {
+        NS_ConvertASCIItoUTF16 name(aName);
+
+        rv = stringBundle->FormatStringFromName(name.get(), aParams, aLength,
+                                                getter_Copies(mError));
+      }
+
+      if (NS_WARN_IF(NS_FAILED(rv))) {
+        mError.AssignLiteral("An unexpected error occurred");
+      }
+    };
+
+
+    // Data members
+
+    nsAutoString mURL;
+    NS_ConvertASCIItoUTF16 mDirective;
+    nsXPIDLString mError;
+
+    bool mFoundSelf;
+};
+
+/**
+ * Validates a custom content security policy string for use by an add-on.
+ * In particular, ensures that:
+ *
+ *  - Both object-src and script-src directives are present, and meet
+ *    the policies required by the CSPValidator class
+ *
+ *  - The script-src directive includes the source 'self'
+ */
+NS_IMETHODIMP
+AddonContentPolicy::ValidateAddonCSP(const nsAString& aPolicyString,
+                                     nsAString& aResult)
+{
+  nsresult rv;
+
+  // Validate against a randomly-generated extension origin.
+  // There is no add-on-specific behavior in the CSP code, beyond the ability
+  // for add-ons to specify a custom policy, but the parser requires a valid
+  // origin in order to operate correctly.
+  nsAutoString url(u"moz-extension://");
+  {
+    nsCOMPtr<nsIUUIDGenerator> uuidgen = services::GetUUIDGenerator();
+    NS_ENSURE_TRUE(uuidgen, NS_ERROR_FAILURE);
+
+    nsID id;
+    rv = uuidgen->GenerateUUIDInPlace(&id);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    char idString[NSID_LENGTH];
+    id.ToProvidedString(idString);
+
+    MOZ_RELEASE_ASSERT(idString[0] == '{' && idString[NSID_LENGTH - 2] == '}',
+                       "UUID generator did not return a valid UUID");
+
+    url.AppendASCII(idString + 1, NSID_LENGTH - 3);
+  }
+
+
+  RefPtr<BasePrincipal> principal =
+    BasePrincipal::CreateCodebasePrincipal(NS_ConvertUTF16toUTF8(url));
+
+  nsCOMPtr<nsIContentSecurityPolicy> csp;
+  rv = principal->EnsureCSP(nullptr, getter_AddRefs(csp));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+
+  csp->AppendPolicy(aPolicyString, false, false);
+
+  const nsCSPPolicy* policy = csp->GetPolicy(0);
+  if (!policy) {
+    CSPValidator validator(url, nsIContentSecurityPolicy::SCRIPT_SRC_DIRECTIVE);
+    aResult.Assign(validator.GetError());
+    return NS_OK;
+  }
+
+  bool haveValidDefaultSrc = false;
+  {
+    CSPDirective directive = nsIContentSecurityPolicy::DEFAULT_SRC_DIRECTIVE;
+    CSPValidator validator(url, directive);
+
+    haveValidDefaultSrc = policy->visitDirectiveSrcs(directive, &validator);
+  }
+
+  aResult.SetIsVoid(true);
+  {
+    CSPDirective directive = nsIContentSecurityPolicy::SCRIPT_SRC_DIRECTIVE;
+    CSPValidator validator(url, directive, !haveValidDefaultSrc);
+
+    if (!policy->visitDirectiveSrcs(directive, &validator)) {
+      aResult.Assign(validator.GetError());
+    } else if (!validator.FoundSelf()) {
+      validator.FormatError("csp.error.missing-source", NS_LITERAL_STRING("'self'"));
+      aResult.Assign(validator.GetError());
+    }
+  }
+
+  if (aResult.IsVoid()) {
+    CSPDirective directive = nsIContentSecurityPolicy::OBJECT_SRC_DIRECTIVE;
+    CSPValidator validator(url, directive, !haveValidDefaultSrc);
+
+    if (!policy->visitDirectiveSrcs(directive, &validator)) {
+      aResult.Assign(validator.GetError());
+    }
+  }
+
+  return NS_OK;
+}
diff --git a/toolkit/mozapps/webextensions/AddonContentPolicy.h b/toolkit/mozapps/webextensions/AddonContentPolicy.h
new file mode 100644
index 000000000..4c8af4828
--- /dev/null
+++ b/toolkit/mozapps/webextensions/AddonContentPolicy.h
@@ -0,0 +1,22 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsIContentPolicy.h"
+#include "nsIAddonPolicyService.h"
+
+class AddonContentPolicy : public nsIContentPolicy,
+                           public nsIAddonContentPolicy
+{
+protected:
+  virtual ~AddonContentPolicy();
+
+public:
+  AddonContentPolicy();
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICONTENTPOLICY
+  NS_DECL_NSIADDONCONTENTPOLICY
+};
diff --git a/toolkit/mozapps/webextensions/AddonManager.jsm b/toolkit/mozapps/webextensions/AddonManager.jsm
new file mode 100644
index 000000000..c5cb80091
--- /dev/null
+++ b/toolkit/mozapps/webextensions/AddonManager.jsm
@@ -0,0 +1,3674 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+const Cu = Components.utils;
+
+// Cannot use Services.appinfo here, or else xpcshell-tests will blow up, as
+// most tests later register different nsIAppInfo implementations, which
+// wouldn't be reflected in Services.appinfo anymore, as the lazy getter
+// underlying it would have been initialized if we used it here.
+if ("@mozilla.org/xre/app-info;1" in Cc) {
+  let runtime = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULRuntime);
+  if (runtime.processType != Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT) {
+    // Refuse to run in child processes.
+    throw new Error("You cannot use the AddonManager in child processes!");
+  }
+}
+
+Cu.import("resource://gre/modules/AppConstants.jsm");
+
+const MOZ_COMPATIBILITY_NIGHTLY = !['aurora', 'beta', 'release', 'esr'].includes(AppConstants.MOZ_UPDATE_CHANNEL);
+
+const PREF_BLOCKLIST_PINGCOUNTVERSION = "extensions.blocklist.pingCountVersion";
+const PREF_DEFAULT_PROVIDERS_ENABLED  = "extensions.defaultProviders.enabled";
+const PREF_EM_UPDATE_ENABLED          = "extensions.update.enabled";
+const PREF_EM_LAST_APP_VERSION        = "extensions.lastAppVersion";
+const PREF_EM_LAST_PLATFORM_VERSION   = "extensions.lastPlatformVersion";
+const PREF_EM_AUTOUPDATE_DEFAULT      = "extensions.update.autoUpdateDefault";
+const PREF_EM_STRICT_COMPATIBILITY    = "extensions.strictCompatibility";
+const PREF_EM_CHECK_UPDATE_SECURITY   = "extensions.checkUpdateSecurity";
+const PREF_EM_UPDATE_BACKGROUND_URL   = "extensions.update.background.url";
+const PREF_APP_UPDATE_ENABLED         = "app.update.enabled";
+const PREF_APP_UPDATE_AUTO            = "app.update.auto";
+const PREF_EM_HOTFIX_ID               = "extensions.hotfix.id";
+const PREF_EM_HOTFIX_LASTVERSION      = "extensions.hotfix.lastVersion";
+const PREF_EM_HOTFIX_URL              = "extensions.hotfix.url";
+const PREF_EM_CERT_CHECKATTRIBUTES    = "extensions.hotfix.cert.checkAttributes";
+const PREF_EM_HOTFIX_CERTS            = "extensions.hotfix.certs.";
+const PREF_MATCH_OS_LOCALE            = "intl.locale.matchOS";
+const PREF_SELECTED_LOCALE            = "general.useragent.locale";
+const UNKNOWN_XPCOM_ABI               = "unknownABI";
+
+const PREF_MIN_WEBEXT_PLATFORM_VERSION = "extensions.webExtensionsMinPlatformVersion";
+const PREF_WEBAPI_TESTING             = "extensions.webapi.testing";
+
+const UPDATE_REQUEST_VERSION          = 2;
+const CATEGORY_UPDATE_PARAMS          = "extension-update-params";
+
+const XMLURI_BLOCKLIST                = "http://www.mozilla.org/2006/addons-blocklist";
+
+const KEY_PROFILEDIR                  = "ProfD";
+const KEY_APPDIR                      = "XCurProcD";
+const FILE_BLOCKLIST                  = "blocklist.xml";
+
+const BRANCH_REGEXP                   = /^([^\.]+\.[0-9]+[a-z]*).*/gi;
+const PREF_EM_CHECK_COMPATIBILITY_BASE = "extensions.checkCompatibility";
+var PREF_EM_CHECK_COMPATIBILITY = MOZ_COMPATIBILITY_NIGHTLY ?
+                                  PREF_EM_CHECK_COMPATIBILITY_BASE + ".nightly" :
+                                  undefined;
+
+const TOOLKIT_ID                      = "toolkit@mozilla.org";
+
+const VALID_TYPES_REGEXP = /^[\w\-]+$/;
+
+const WEBAPI_INSTALL_HOSTS = ["addons.mozilla.org", "testpilot.firefox.com"];
+const WEBAPI_TEST_INSTALL_HOSTS = [
+  "addons.allizom.org", "addons-dev.allizom.org",
+  "testpilot.stage.mozaws.net", "testpilot.dev.mozaws.net",
+  "example.com",
+];
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/AsyncShutdown.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "Task",
+                                  "resource://gre/modules/Task.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Promise",
+                                  "resource://gre/modules/Promise.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AddonRepository",
+                                  "resource://gre/modules/addons/AddonRepository.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Extension",
+                                  "resource://gre/modules/Extension.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
+                                  "resource://gre/modules/FileUtils.jsm");
+
+XPCOMUtils.defineLazyGetter(this, "CertUtils", function() {
+  let certUtils = {};
+  Components.utils.import("resource://gre/modules/CertUtils.jsm", certUtils);
+  return certUtils;
+});
+
+const INTEGER = /^[1-9]\d*$/;
+
+this.EXPORTED_SYMBOLS = [ "AddonManager", "AddonManagerPrivate" ];
+
+const CATEGORY_PROVIDER_MODULE = "addon-provider-module";
+
+// A list of providers to load by default
+const DEFAULT_PROVIDERS = [
+  "resource://gre/modules/addons/XPIProvider.jsm",
+  "resource://gre/modules/LightweightThemeManager.jsm"
+];
+
+Cu.import("resource://gre/modules/Log.jsm");
+// Configure a logger at the parent 'addons' level to format
+// messages for all the modules under addons.*
+const PARENT_LOGGER_ID = "addons";
+var parentLogger = Log.repository.getLogger(PARENT_LOGGER_ID);
+parentLogger.level = Log.Level.Warn;
+var formatter = new Log.BasicFormatter();
+// Set parent logger (and its children) to append to
+// the Javascript section of the Browser Console
+parentLogger.addAppender(new Log.ConsoleAppender(formatter));
+// Set parent logger (and its children) to
+// also append to standard out
+parentLogger.addAppender(new Log.DumpAppender(formatter));
+
+// Create a new logger (child of 'addons' logger)
+// for use by the Addons Manager
+const LOGGER_ID = "addons.manager";
+var logger = Log.repository.getLogger(LOGGER_ID);
+
+// Provide the ability to enable/disable logging
+// messages at runtime.
+// If the "extensions.logging.enabled" preference is
+// missing or 'false', messages at the WARNING and higher
+// severity should be logged to the JS console and standard error.
+// If "extensions.logging.enabled" is set to 'true', messages
+// at DEBUG and higher should go to JS console and standard error.
+const PREF_LOGGING_ENABLED = "extensions.logging.enabled";
+const NS_PREFBRANCH_PREFCHANGE_TOPIC_ID = "nsPref:changed";
+
+const UNNAMED_PROVIDER = "<unnamed-provider>";
+function providerName(aProvider) {
+  return aProvider.name || UNNAMED_PROVIDER;
+}
+
+/**
+ * Preference listener which listens for a change in the
+ * "extensions.logging.enabled" preference and changes the logging level of the
+ * parent 'addons' level logger accordingly.
+ */
+var PrefObserver = {
+    init: function() {
+      Services.prefs.addObserver(PREF_LOGGING_ENABLED, this, false);
+      Services.obs.addObserver(this, "xpcom-shutdown", false);
+      this.observe(null, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID, PREF_LOGGING_ENABLED);
+    },
+
+    observe: function(aSubject, aTopic, aData) {
+      if (aTopic == "xpcom-shutdown") {
+        Services.prefs.removeObserver(PREF_LOGGING_ENABLED, this);
+        Services.obs.removeObserver(this, "xpcom-shutdown");
+      }
+      else if (aTopic == NS_PREFBRANCH_PREFCHANGE_TOPIC_ID) {
+        let debugLogEnabled = false;
+        try {
+          debugLogEnabled = Services.prefs.getBoolPref(PREF_LOGGING_ENABLED);
+        }
+        catch (e) {
+        }
+        if (debugLogEnabled) {
+          parentLogger.level = Log.Level.Debug;
+        }
+        else {
+          parentLogger.level = Log.Level.Warn;
+        }
+      }
+    }
+};
+
+PrefObserver.init();
+
+/**
+ * Calls a callback method consuming any thrown exception. Any parameters after
+ * the callback parameter will be passed to the callback.
+ *
+ * @param  aCallback
+ *         The callback method to call
+ */
+function safeCall(aCallback, ...aArgs) {
+  try {
+    aCallback.apply(null, aArgs);
+  }
+  catch (e) {
+    logger.warn("Exception calling callback", e);
+  }
+}
+
+/**
+ * Creates a function that will call the passed callback catching and logging
+ * any exceptions.
+ *
+ * @param  aCallback
+ *         The callback method to call
+ */
+function makeSafe(aCallback) {
+  return function(...aArgs) {
+    safeCall(aCallback, ...aArgs);
+  }
+}
+
+/**
+ * Report an exception thrown by a provider API method.
+ */
+function reportProviderError(aProvider, aMethod, aError) {
+  let method = `provider ${providerName(aProvider)}.${aMethod}`;
+  AddonManagerPrivate.recordException("AMI", method, aError);
+  logger.error("Exception calling " + method, aError);
+}
+
+/**
+ * Calls a method on a provider if it exists and consumes any thrown exception.
+ * Any parameters after the aDefault parameter are passed to the provider's method.
+ *
+ * @param  aProvider
+ *         The provider to call
+ * @param  aMethod
+ *         The method name to call
+ * @param  aDefault
+ *         A default return value if the provider does not implement the named
+ *         method or throws an error.
+ * @return the return value from the provider, or aDefault if the provider does not
+ *         implement method or throws an error
+ */
+function callProvider(aProvider, aMethod, aDefault, ...aArgs) {
+  if (!(aMethod in aProvider))
+    return aDefault;
+
+  try {
+    return aProvider[aMethod].apply(aProvider, aArgs);
+  }
+  catch (e) {
+    reportProviderError(aProvider, aMethod, e);
+    return aDefault;
+  }
+}
+
+/**
+ * Calls a method on a provider if it exists and consumes any thrown exception.
+ * Parameters after aMethod are passed to aProvider.aMethod().
+ * The last parameter must be a callback function.
+ * If the provider does not implement the method, or the method throws, calls
+ * the callback with 'undefined'.
+ *
+ * @param  aProvider
+ *         The provider to call
+ * @param  aMethod
+ *         The method name to call
+ */
+function callProviderAsync(aProvider, aMethod, ...aArgs) {
+  let callback = aArgs[aArgs.length - 1];
+  if (!(aMethod in aProvider)) {
+    callback(undefined);
+    return undefined;
+  }
+  try {
+    return aProvider[aMethod].apply(aProvider, aArgs);
+  }
+  catch (e) {
+    reportProviderError(aProvider, aMethod, e);
+    callback(undefined);
+    return undefined;
+  }
+}
+
+/**
+ * Calls a method on a provider if it exists and consumes any thrown exception.
+ * Parameters after aMethod are passed to aProvider.aMethod() and an additional
+ * callback is added for the provider to return a result to.
+ *
+ * @param  aProvider
+ *         The provider to call
+ * @param  aMethod
+ *         The method name to call
+ * @return {Promise}
+ * @resolves The result the provider returns, or |undefined| if the provider
+ *           does not implement the method or the method throws.
+ * @rejects  Never
+ */
+function promiseCallProvider(aProvider, aMethod, ...aArgs) {
+  return new Promise(resolve => {
+    callProviderAsync(aProvider, aMethod, ...aArgs, resolve);
+  });
+}
+
+/**
+ * Gets the currently selected locale for display.
+ * @return  the selected locale or "en-US" if none is selected
+ */
+function getLocale() {
+  try {
+    if (Services.prefs.getBoolPref(PREF_MATCH_OS_LOCALE))
+      return Services.locale.getLocaleComponentForUserAgent();
+  }
+  catch (e) { }
+
+  try {
+    let locale = Services.prefs.getComplexValue(PREF_SELECTED_LOCALE,
+                                                Ci.nsIPrefLocalizedString);
+    if (locale)
+      return locale;
+  }
+  catch (e) { }
+
+  try {
+    return Services.prefs.getCharPref(PREF_SELECTED_LOCALE);
+  }
+  catch (e) { }
+
+  return "en-US";
+}
+
+function webAPIForAddon(addon) {
+  if (!addon) {
+    return null;
+  }
+
+  let result = {};
+
+  // By default just pass through any plain property, the webidl will
+  // control access.  Also filter out private properties, regular Addon
+  // objects are okay but MockAddon used in tests has non-serializable
+  // private properties.
+  for (let prop in addon) {
+    if (prop[0] != "_" && typeof(addon[prop]) != "function") {
+      result[prop] = addon[prop];
+    }
+  }
+
+  // A few properties are computed for a nicer API
+  result.isEnabled = !addon.userDisabled;
+  result.canUninstall = Boolean(addon.permissions & AddonManager.PERM_CAN_UNINSTALL);
+
+  return result;
+}
+
+/**
+ * A helper class to repeatedly call a listener with each object in an array
+ * optionally checking whether the object has a method in it.
+ *
+ * @param  aObjects
+ *         The array of objects to iterate through
+ * @param  aMethod
+ *         An optional method name, if not null any objects without this method
+ *         will not be passed to the listener
+ * @param  aListener
+ *         A listener implementing nextObject and noMoreObjects methods. The
+ *         former will be called with the AsyncObjectCaller as the first
+ *         parameter and the object as the second. noMoreObjects will be passed
+ *         just the AsyncObjectCaller
+ */
+function AsyncObjectCaller(aObjects, aMethod, aListener) {
+  this.objects = [...aObjects];
+  this.method = aMethod;
+  this.listener = aListener;
+
+  this.callNext();
+}
+
+AsyncObjectCaller.prototype = {
+  objects: null,
+  method: null,
+  listener: null,
+
+  /**
+   * Passes the next object to the listener or calls noMoreObjects if there
+   * are none left.
+   */
+  callNext: function() {
+    if (this.objects.length == 0) {
+      this.listener.noMoreObjects(this);
+      return;
+    }
+
+    let object = this.objects.shift();
+    if (!this.method || this.method in object)
+      this.listener.nextObject(this, object);
+    else
+      this.callNext();
+  }
+};
+
+/**
+ * Listens for a browser changing origin and cancels the installs that were
+ * started by it.
+ */
+function BrowserListener(aBrowser, aInstallingPrincipal, aInstalls) {
+  this.browser = aBrowser;
+  this.principal = aInstallingPrincipal;
+  this.installs = aInstalls;
+  this.installCount = aInstalls.length;
+
+  aBrowser.addProgressListener(this, Ci.nsIWebProgress.NOTIFY_LOCATION);
+  Services.obs.addObserver(this, "message-manager-close", true);
+
+  for (let install of this.installs)
+    install.addListener(this);
+
+  this.registered = true;
+}
+
+BrowserListener.prototype = {
+  browser: null,
+  installs: null,
+  installCount: null,
+  registered: false,
+
+  unregister: function() {
+    if (!this.registered)
+      return;
+    this.registered = false;
+
+    Services.obs.removeObserver(this, "message-manager-close");
+    // The browser may have already been detached
+    if (this.browser.removeProgressListener)
+      this.browser.removeProgressListener(this);
+
+    for (let install of this.installs)
+      install.removeListener(this);
+    this.installs = null;
+  },
+
+  cancelInstalls: function() {
+    for (let install of this.installs) {
+      try {
+        install.cancel();
+      }
+      catch (e) {
+        // Some installs may have already failed or been cancelled, ignore these
+      }
+    }
+  },
+
+  observe: function(subject, topic, data) {
+    if (subject != this.browser.messageManager)
+      return;
+
+    // The browser's message manager has closed and so the browser is
+    // going away, cancel all installs
+    this.cancelInstalls();
+  },
+
+  onLocationChange: function(webProgress, request, location) {
+    if (this.browser.contentPrincipal && this.principal.subsumes(this.browser.contentPrincipal))
+      return;
+
+    // The browser has navigated to a new origin so cancel all installs
+    this.cancelInstalls();
+  },
+
+  onDownloadCancelled: function(install) {
+    // Don't need to hear more events from this install
+    install.removeListener(this);
+
+    // Once all installs have ended unregister everything
+    if (--this.installCount == 0)
+      this.unregister();
+  },
+
+  onDownloadFailed: function(install) {
+    this.onDownloadCancelled(install);
+  },
+
+  onInstallFailed: function(install) {
+    this.onDownloadCancelled(install);
+  },
+
+  onInstallEnded: function(install) {
+    this.onDownloadCancelled(install);
+  },
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsISupportsWeakReference,
+                                         Ci.nsIWebProgressListener,
+                                         Ci.nsIObserver])
+};
+
+/**
+ * This represents an author of an add-on (e.g. creator or developer)
+ *
+ * @param  aName
+ *         The name of the author
+ * @param  aURL
+ *         The URL of the author's profile page
+ */
+function AddonAuthor(aName, aURL) {
+  this.name = aName;
+  this.url = aURL;
+}
+
+AddonAuthor.prototype = {
+  name: null,
+  url: null,
+
+  // Returns the author's name, defaulting to the empty string
+  toString: function() {
+    return this.name || "";
+  }
+}
+
+/**
+ * This represents an screenshot for an add-on
+ *
+ * @param  aURL
+ *         The URL to the full version of the screenshot
+ * @param  aWidth
+ *         The width in pixels of the screenshot
+ * @param  aHeight
+ *         The height in pixels of the screenshot
+ * @param  aThumbnailURL
+ *         The URL to the thumbnail version of the screenshot
+ * @param  aThumbnailWidth
+ *         The width in pixels of the thumbnail version of the screenshot
+ * @param  aThumbnailHeight
+ *         The height in pixels of the thumbnail version of the screenshot
+ * @param  aCaption
+ *         The caption of the screenshot
+ */
+function AddonScreenshot(aURL, aWidth, aHeight, aThumbnailURL,
+                         aThumbnailWidth, aThumbnailHeight, aCaption) {
+  this.url = aURL;
+  if (aWidth) this.width = aWidth;
+  if (aHeight) this.height = aHeight;
+  if (aThumbnailURL) this.thumbnailURL = aThumbnailURL;
+  if (aThumbnailWidth) this.thumbnailWidth = aThumbnailWidth;
+  if (aThumbnailHeight) this.thumbnailHeight = aThumbnailHeight;
+  if (aCaption) this.caption = aCaption;
+}
+
+AddonScreenshot.prototype = {
+  url: null,
+  width: null,
+  height: null,
+  thumbnailURL: null,
+  thumbnailWidth: null,
+  thumbnailHeight: null,
+  caption: null,
+
+  // Returns the screenshot URL, defaulting to the empty string
+  toString: function() {
+    return this.url || "";
+  }
+}
+
+
+/**
+ * This represents a compatibility override for an addon.
+ *
+ * @param  aType
+ *         Overrride type - "compatible" or "incompatible"
+ * @param  aMinVersion
+ *         Minimum version of the addon to match
+ * @param  aMaxVersion
+ *         Maximum version of the addon to match
+ * @param  aAppID
+ *         Application ID used to match appMinVersion and appMaxVersion
+ * @param  aAppMinVersion
+ *         Minimum version of the application to match
+ * @param  aAppMaxVersion
+ *         Maximum version of the application to match
+ */
+function AddonCompatibilityOverride(aType, aMinVersion, aMaxVersion, aAppID,
+                                    aAppMinVersion, aAppMaxVersion) {
+  this.type = aType;
+  this.minVersion = aMinVersion;
+  this.maxVersion = aMaxVersion;
+  this.appID = aAppID;
+  this.appMinVersion = aAppMinVersion;
+  this.appMaxVersion = aAppMaxVersion;
+}
+
+AddonCompatibilityOverride.prototype = {
+  /**
+   * Type of override - "incompatible" or "compatible".
+   * Only "incompatible" is supported for now.
+   */
+  type: null,
+
+  /**
+   * Min version of the addon to match.
+   */
+  minVersion: null,
+
+  /**
+   * Max version of the addon to match.
+   */
+  maxVersion: null,
+
+  /**
+   * Application ID to match.
+   */
+  appID: null,
+
+  /**
+   * Min version of the application to match.
+   */
+  appMinVersion: null,
+
+  /**
+   * Max version of the application to match.
+   */
+  appMaxVersion: null
+};
+
+
+/**
+ * A type of add-on, used by the UI to determine how to display different types
+ * of add-ons.
+ *
+ * @param  aID
+ *         The add-on type ID
+ * @param  aLocaleURI
+ *         The URI of a localized properties file to get the displayable name
+ *         for the type from
+ * @param  aLocaleKey
+ *         The key for the string in the properties file or the actual display
+ *         name if aLocaleURI is null. Include %ID% to include the type ID in
+ *         the key
+ * @param  aViewType
+ *         The optional type of view to use in the UI
+ * @param  aUIPriority
+ *         The priority is used by the UI to list the types in order. Lower
+ *         values push the type higher in the list.
+ * @param  aFlags
+ *         An option set of flags that customize the display of the add-on in
+ *         the UI.
+ */
+function AddonType(aID, aLocaleURI, aLocaleKey, aViewType, aUIPriority, aFlags) {
+  if (!aID)
+    throw Components.Exception("An AddonType must have an ID", Cr.NS_ERROR_INVALID_ARG);
+
+  if (aViewType && aUIPriority === undefined)
+    throw Components.Exception("An AddonType with a defined view must have a set UI priority",
+                               Cr.NS_ERROR_INVALID_ARG);
+
+  if (!aLocaleKey)
+    throw Components.Exception("An AddonType must have a displayable name",
+                               Cr.NS_ERROR_INVALID_ARG);
+
+  this.id = aID;
+  this.uiPriority = aUIPriority;
+  this.viewType = aViewType;
+  this.flags = aFlags;
+
+  if (aLocaleURI) {
+    XPCOMUtils.defineLazyGetter(this, "name", () => {
+      let bundle = Services.strings.createBundle(aLocaleURI);
+      return bundle.GetStringFromName(aLocaleKey.replace("%ID%", aID));
+    });
+  }
+  else {
+    this.name = aLocaleKey;
+  }
+}
+
+var gStarted = false;
+var gStartupComplete = false;
+var gCheckCompatibility = true;
+var gStrictCompatibility = true;
+var gCheckUpdateSecurityDefault = true;
+var gCheckUpdateSecurity = gCheckUpdateSecurityDefault;
+var gUpdateEnabled = true;
+var gAutoUpdateDefault = true;
+var gHotfixID = null;
+var gWebExtensionsMinPlatformVersion = null;
+var gShutdownBarrier = null;
+var gRepoShutdownState = "";
+var gShutdownInProgress = false;
+var gPluginPageListener = null;
+
+/**
+ * This is the real manager, kept here rather than in AddonManager to keep its
+ * contents hidden from API users.
+ */
+var AddonManagerInternal = {
+  managerListeners: [],
+  installListeners: [],
+  addonListeners: [],
+  typeListeners: [],
+  pendingProviders: new Set(),
+  providers: new Set(),
+  providerShutdowns: new Map(),
+  types: {},
+  startupChanges: {},
+  // Store telemetry details per addon provider
+  telemetryDetails: {},
+  upgradeListeners: new Map(),
+
+  recordTimestamp: function(name, value) {
+    this.TelemetryTimestamps.add(name, value);
+  },
+
+  validateBlocklist: function() {
+    let appBlocklist = FileUtils.getFile(KEY_APPDIR, [FILE_BLOCKLIST]);
+
+    // If there is no application shipped blocklist then there is nothing to do
+    if (!appBlocklist.exists())
+      return;
+
+    let profileBlocklist = FileUtils.getFile(KEY_PROFILEDIR, [FILE_BLOCKLIST]);
+
+    // If there is no blocklist in the profile then copy the application shipped
+    // one there
+    if (!profileBlocklist.exists()) {
+      try {
+        appBlocklist.copyTo(profileBlocklist.parent, FILE_BLOCKLIST);
+      }
+      catch (e) {
+        logger.warn("Failed to copy the application shipped blocklist to the profile", e);
+      }
+      return;
+    }
+
+    let fileStream = Cc["@mozilla.org/network/file-input-stream;1"].
+                     createInstance(Ci.nsIFileInputStream);
+    try {
+      let cstream = Cc["@mozilla.org/intl/converter-input-stream;1"].
+                    createInstance(Ci.nsIConverterInputStream);
+      fileStream.init(appBlocklist, FileUtils.MODE_RDONLY, FileUtils.PERMS_FILE, 0);
+      cstream.init(fileStream, "UTF-8", 0, 0);
+
+      let data = "";
+      let str = {};
+      let read = 0;
+      do {
+        read = cstream.readString(0xffffffff, str);
+        data += str.value;
+      } while (read != 0);
+
+      let parser = Cc["@mozilla.org/xmlextras/domparser;1"].
+                   createInstance(Ci.nsIDOMParser);
+      var doc = parser.parseFromString(data, "text/xml");
+    }
+    catch (e) {
+      logger.warn("Application shipped blocklist could not be loaded", e);
+      return;
+    }
+    finally {
+      try {
+        fileStream.close();
+      }
+      catch (e) {
+        logger.warn("Unable to close blocklist file stream", e);
+      }
+    }
+
+    // If the namespace is incorrect then ignore the application shipped
+    // blocklist
+    if (doc.documentElement.namespaceURI != XMLURI_BLOCKLIST) {
+      logger.warn("Application shipped blocklist has an unexpected namespace (" +
+                  doc.documentElement.namespaceURI + ")");
+      return;
+    }
+
+    // If there is no lastupdate information then ignore the application shipped
+    // blocklist
+    if (!doc.documentElement.hasAttribute("lastupdate"))
+      return;
+
+    // If the application shipped blocklist is older than the profile blocklist
+    // then do nothing
+    if (doc.documentElement.getAttribute("lastupdate") <=
+        profileBlocklist.lastModifiedTime)
+      return;
+
+    // Otherwise copy the application shipped blocklist to the profile
+    try {
+      appBlocklist.copyTo(profileBlocklist.parent, FILE_BLOCKLIST);
+    }
+    catch (e) {
+      logger.warn("Failed to copy the application shipped blocklist to the profile", e);
+    }
+  },
+
+  /**
+   * Start up a provider, and register its shutdown hook if it has one
+   */
+  _startProvider(aProvider, aAppChanged, aOldAppVersion, aOldPlatformVersion) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    logger.debug(`Starting provider: ${providerName(aProvider)}`);
+    callProvider(aProvider, "startup", null, aAppChanged, aOldAppVersion, aOldPlatformVersion);
+    if ('shutdown' in aProvider) {
+      let name = providerName(aProvider);
+      let AMProviderShutdown = () => {
+        // If the provider has been unregistered, it will have been removed from
+        // this.providers. If it hasn't been unregistered, then this is a normal
+        // shutdown - and we move it to this.pendingProviders incase we're
+        // running in a test that will start AddonManager again.
+        if (this.providers.has(aProvider)) {
+          this.providers.delete(aProvider);
+          this.pendingProviders.add(aProvider);
+        }
+
+        return new Promise((resolve, reject) => {
+            logger.debug("Calling shutdown blocker for " + name);
+            resolve(aProvider.shutdown());
+          })
+          .catch(err => {
+            logger.warn("Failure during shutdown of " + name, err);
+            AddonManagerPrivate.recordException("AMI", "Async shutdown of " + name, err);
+          });
+      };
+      logger.debug("Registering shutdown blocker for " + name);
+      this.providerShutdowns.set(aProvider, AMProviderShutdown);
+      AddonManager.shutdown.addBlocker(name, AMProviderShutdown);
+    }
+
+    this.pendingProviders.delete(aProvider);
+    this.providers.add(aProvider);
+    logger.debug(`Provider finished startup: ${providerName(aProvider)}`);
+  },
+
+  _getProviderByName(aName) {
+    for (let provider of this.providers) {
+      if (providerName(provider) == aName)
+        return provider;
+    }
+    return undefined;
+  },
+
+  /**
+   * Initializes the AddonManager, loading any known providers and initializing
+   * them.
+   */
+  startup: function() {
+    try {
+      if (gStarted)
+        return;
+
+      this.recordTimestamp("AMI_startup_begin");
+
+      // clear this for xpcshell test restarts
+      for (let provider in this.telemetryDetails)
+        delete this.telemetryDetails[provider];
+
+      let appChanged = undefined;
+
+      let oldAppVersion = null;
+      try {
+        oldAppVersion = Services.prefs.getCharPref(PREF_EM_LAST_APP_VERSION);
+        appChanged = Services.appinfo.version != oldAppVersion;
+      }
+      catch (e) { }
+
+      Extension.browserUpdated = appChanged;
+
+      let oldPlatformVersion = null;
+      try {
+        oldPlatformVersion = Services.prefs.getCharPref(PREF_EM_LAST_PLATFORM_VERSION);
+      }
+      catch (e) { }
+
+      if (appChanged !== false) {
+        logger.debug("Application has been upgraded");
+        Services.prefs.setCharPref(PREF_EM_LAST_APP_VERSION,
+                                   Services.appinfo.version);
+        Services.prefs.setCharPref(PREF_EM_LAST_PLATFORM_VERSION,
+                                   Services.appinfo.platformVersion);
+        Services.prefs.setIntPref(PREF_BLOCKLIST_PINGCOUNTVERSION,
+                                  (appChanged === undefined ? 0 : -1));
+        this.validateBlocklist();
+      }
+
+      if (!MOZ_COMPATIBILITY_NIGHTLY) {
+        PREF_EM_CHECK_COMPATIBILITY = PREF_EM_CHECK_COMPATIBILITY_BASE + "." +
+                                      Services.appinfo.version.replace(BRANCH_REGEXP, "$1");
+      }
+
+      try {
+        gCheckCompatibility = Services.prefs.getBoolPref(PREF_EM_CHECK_COMPATIBILITY);
+      } catch (e) {}
+      Services.prefs.addObserver(PREF_EM_CHECK_COMPATIBILITY, this, false);
+
+      try {
+        gStrictCompatibility = Services.prefs.getBoolPref(PREF_EM_STRICT_COMPATIBILITY);
+      } catch (e) {}
+      Services.prefs.addObserver(PREF_EM_STRICT_COMPATIBILITY, this, false);
+
+      try {
+        let defaultBranch = Services.prefs.getDefaultBranch("");
+        gCheckUpdateSecurityDefault = defaultBranch.getBoolPref(PREF_EM_CHECK_UPDATE_SECURITY);
+      } catch (e) {}
+
+      try {
+        gCheckUpdateSecurity = Services.prefs.getBoolPref(PREF_EM_CHECK_UPDATE_SECURITY);
+      } catch (e) {}
+      Services.prefs.addObserver(PREF_EM_CHECK_UPDATE_SECURITY, this, false);
+
+      try {
+        gUpdateEnabled = Services.prefs.getBoolPref(PREF_EM_UPDATE_ENABLED);
+      } catch (e) {}
+      Services.prefs.addObserver(PREF_EM_UPDATE_ENABLED, this, false);
+
+      try {
+        gAutoUpdateDefault = Services.prefs.getBoolPref(PREF_EM_AUTOUPDATE_DEFAULT);
+      } catch (e) {}
+      Services.prefs.addObserver(PREF_EM_AUTOUPDATE_DEFAULT, this, false);
+
+      try {
+        gHotfixID = Services.prefs.getCharPref(PREF_EM_HOTFIX_ID);
+      } catch (e) {}
+      Services.prefs.addObserver(PREF_EM_HOTFIX_ID, this, false);
+
+      try {
+        gWebExtensionsMinPlatformVersion = Services.prefs.getCharPref(PREF_MIN_WEBEXT_PLATFORM_VERSION);
+      } catch (e) {}
+      Services.prefs.addObserver(PREF_MIN_WEBEXT_PLATFORM_VERSION, this, false);
+
+      let defaultProvidersEnabled = true;
+      try {
+        defaultProvidersEnabled = Services.prefs.getBoolPref(PREF_DEFAULT_PROVIDERS_ENABLED);
+      } catch (e) {}
+      AddonManagerPrivate.recordSimpleMeasure("default_providers", defaultProvidersEnabled);
+
+      // Ensure all default providers have had a chance to register themselves
+      if (defaultProvidersEnabled) {
+        for (let url of DEFAULT_PROVIDERS) {
+          try {
+            let scope = {};
+            Components.utils.import(url, scope);
+            // Sanity check - make sure the provider exports a symbol that
+            // has a 'startup' method
+            let syms = Object.keys(scope);
+            if ((syms.length < 1) ||
+                (typeof scope[syms[0]].startup != "function")) {
+              logger.warn("Provider " + url + " has no startup()");
+              AddonManagerPrivate.recordException("AMI", "provider " + url, "no startup()");
+            }
+            logger.debug("Loaded provider scope for " + url + ": " + Object.keys(scope).toSource());
+          }
+          catch (e) {
+            AddonManagerPrivate.recordException("AMI", "provider " + url + " load failed", e);
+            logger.error("Exception loading default provider \"" + url + "\"", e);
+          }
+        }
+      }
+
+      // Load any providers registered in the category manager
+      let catman = Cc["@mozilla.org/categorymanager;1"].
+                   getService(Ci.nsICategoryManager);
+      let entries = catman.enumerateCategory(CATEGORY_PROVIDER_MODULE);
+      while (entries.hasMoreElements()) {
+        let entry = entries.getNext().QueryInterface(Ci.nsISupportsCString).data;
+        let url = catman.getCategoryEntry(CATEGORY_PROVIDER_MODULE, entry);
+
+        try {
+          Components.utils.import(url, {});
+          logger.debug(`Loaded provider scope for ${url}`);
+        }
+        catch (e) {
+          AddonManagerPrivate.recordException("AMI", "provider " + url + " load failed", e);
+          logger.error("Exception loading provider " + entry + " from category \"" +
+                url + "\"", e);
+        }
+      }
+
+      // Register our shutdown handler with the AsyncShutdown manager
+      gShutdownBarrier = new AsyncShutdown.Barrier("AddonManager: Waiting for providers to shut down.");
+      AsyncShutdown.profileBeforeChange.addBlocker("AddonManager: shutting down.",
+                                                   this.shutdownManager.bind(this),
+                                                   {fetchState: this.shutdownState.bind(this)});
+
+      // Once we start calling providers we must allow all normal methods to work.
+      gStarted = true;
+
+      for (let provider of this.pendingProviders) {
+        this._startProvider(provider, appChanged, oldAppVersion, oldPlatformVersion);
+      }
+
+      // If this is a new profile just pretend that there were no changes
+      if (appChanged === undefined) {
+        for (let type in this.startupChanges)
+          delete this.startupChanges[type];
+      }
+
+      // Support for remote about:plugins. Note that this module isn't loaded
+      // at the top because Services.appinfo is defined late in tests.
+      let { RemotePages } = Cu.import("resource://gre/modules/RemotePageManager.jsm", {});
+
+      gPluginPageListener = new RemotePages("about:plugins");
+      gPluginPageListener.addMessageListener("RequestPlugins", this.requestPlugins);
+
+      gStartupComplete = true;
+      this.recordTimestamp("AMI_startup_end");
+    }
+    catch (e) {
+      logger.error("startup failed", e);
+      AddonManagerPrivate.recordException("AMI", "startup failed", e);
+    }
+
+    logger.debug("Completed startup sequence");
+    this.callManagerListeners("onStartup");
+  },
+
+  /**
+   * Registers a new AddonProvider.
+   *
+   * @param  aProvider
+   *         The provider to register
+   * @param  aTypes
+   *         An optional array of add-on types
+   */
+  registerProvider: function(aProvider, aTypes) {
+    if (!aProvider || typeof aProvider != "object")
+      throw Components.Exception("aProvider must be specified",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (aTypes && !Array.isArray(aTypes))
+      throw Components.Exception("aTypes must be an array or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    this.pendingProviders.add(aProvider);
+
+    if (aTypes) {
+      for (let type of aTypes) {
+        if (!(type.id in this.types)) {
+          if (!VALID_TYPES_REGEXP.test(type.id)) {
+            logger.warn("Ignoring invalid type " + type.id);
+            return;
+          }
+
+          this.types[type.id] = {
+            type: type,
+            providers: [aProvider]
+          };
+
+          let typeListeners = this.typeListeners.slice(0);
+          for (let listener of typeListeners)
+            safeCall(() => listener.onTypeAdded(type));
+        }
+        else {
+          this.types[type.id].providers.push(aProvider);
+        }
+      }
+    }
+
+    // If we're registering after startup call this provider's startup.
+    if (gStarted) {
+      this._startProvider(aProvider);
+    }
+  },
+
+  /**
+   * Unregisters an AddonProvider.
+   *
+   * @param  aProvider
+   *         The provider to unregister
+   * @return Whatever the provider's 'shutdown' method returns (if anything).
+   *         For providers that have async shutdown methods returning Promises,
+   *         the caller should wait for that Promise to resolve.
+   */
+  unregisterProvider: function(aProvider) {
+    if (!aProvider || typeof aProvider != "object")
+      throw Components.Exception("aProvider must be specified",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    this.providers.delete(aProvider);
+    // The test harness will unregister XPIProvider *after* shutdown, which is
+    // after the provider will have been moved from providers to
+    // pendingProviders.
+    this.pendingProviders.delete(aProvider);
+
+    for (let type in this.types) {
+      this.types[type].providers = this.types[type].providers.filter(p => p != aProvider);
+      if (this.types[type].providers.length == 0) {
+        let oldType = this.types[type].type;
+        delete this.types[type];
+
+        let typeListeners = this.typeListeners.slice(0);
+        for (let listener of typeListeners)
+          safeCall(() => listener.onTypeRemoved(oldType));
+      }
+    }
+
+    // If we're unregistering after startup but before shutting down,
+    // remove the blocker for this provider's shutdown and call it.
+    // If we're already shutting down, just let gShutdownBarrier call it to avoid races.
+    if (gStarted && !gShutdownInProgress) {
+      logger.debug("Unregistering shutdown blocker for " + providerName(aProvider));
+      let shutter = this.providerShutdowns.get(aProvider);
+      if (shutter) {
+        this.providerShutdowns.delete(aProvider);
+        gShutdownBarrier.client.removeBlocker(shutter);
+        return shutter();
+      }
+    }
+    return undefined;
+  },
+
+  /**
+   * Mark a provider as safe to access via AddonManager APIs, before its
+   * startup has completed.
+   *
+   * Normally a provider isn't marked as safe until after its (synchronous)
+   * startup() method has returned. Until a provider has been marked safe,
+   * it won't be used by any of the AddonManager APIs. markProviderSafe()
+   * allows a provider to mark itself as safe during its startup; this can be
+   * useful if the provider wants to perform tasks that block startup, which
+   * happen after its required initialization tasks and therefore when the
+   * provider is in a safe state.
+   *
+   * @param aProvider Provider object to mark safe
+   */
+  markProviderSafe: function(aProvider) {
+    if (!gStarted) {
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+    }
+
+    if (!aProvider || typeof aProvider != "object") {
+      throw Components.Exception("aProvider must be specified",
+                                 Cr.NS_ERROR_INVALID_ARG);
+    }
+
+    if (!this.pendingProviders.has(aProvider)) {
+      return;
+    }
+
+    this.pendingProviders.delete(aProvider);
+    this.providers.add(aProvider);
+  },
+
+  /**
+   * Calls a method on all registered providers if it exists and consumes any
+   * thrown exception. Return values are ignored. Any parameters after the
+   * method parameter are passed to the provider's method.
+   * WARNING: Do not use for asynchronous calls; callProviders() does not
+   * invoke callbacks if provider methods throw synchronous exceptions.
+   *
+   * @param  aMethod
+   *         The method name to call
+   * @see    callProvider
+   */
+  callProviders: function(aMethod, ...aArgs) {
+    if (!aMethod || typeof aMethod != "string")
+      throw Components.Exception("aMethod must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let providers = [...this.providers];
+    for (let provider of providers) {
+      try {
+        if (aMethod in provider)
+          provider[aMethod].apply(provider, aArgs);
+      }
+      catch (e) {
+        reportProviderError(provider, aMethod, e);
+      }
+    }
+  },
+
+  /**
+   * Report the current state of asynchronous shutdown
+   */
+  shutdownState() {
+    let state = [];
+    if (gShutdownBarrier) {
+      state.push({
+        name: gShutdownBarrier.client.name,
+        state: gShutdownBarrier.state
+      });
+    }
+    state.push({
+      name: "AddonRepository: async shutdown",
+      state: gRepoShutdownState
+    });
+    return state;
+  },
+
+  /**
+   * Shuts down the addon manager and all registered providers, this must clean
+   * up everything in order for automated tests to fake restarts.
+   * @return Promise{null} that resolves when all providers and dependent modules
+   *                       have finished shutting down
+   */
+  shutdownManager: Task.async(function*() {
+    logger.debug("shutdown");
+    this.callManagerListeners("onShutdown");
+
+    gRepoShutdownState = "pending";
+    gShutdownInProgress = true;
+    // Clean up listeners
+    Services.prefs.removeObserver(PREF_EM_CHECK_COMPATIBILITY, this);
+    Services.prefs.removeObserver(PREF_EM_STRICT_COMPATIBILITY, this);
+    Services.prefs.removeObserver(PREF_EM_CHECK_UPDATE_SECURITY, this);
+    Services.prefs.removeObserver(PREF_EM_UPDATE_ENABLED, this);
+    Services.prefs.removeObserver(PREF_EM_AUTOUPDATE_DEFAULT, this);
+    Services.prefs.removeObserver(PREF_EM_HOTFIX_ID, this);
+    gPluginPageListener.destroy();
+    gPluginPageListener = null;
+
+    let savedError = null;
+    // Only shut down providers if they've been started.
+    if (gStarted) {
+      try {
+        yield gShutdownBarrier.wait();
+      }
+      catch (err) {
+        savedError = err;
+        logger.error("Failure during wait for shutdown barrier", err);
+        AddonManagerPrivate.recordException("AMI", "Async shutdown of AddonManager providers", err);
+      }
+    }
+
+    // Shut down AddonRepository after providers (if any).
+    try {
+      gRepoShutdownState = "in progress";
+      yield AddonRepository.shutdown();
+      gRepoShutdownState = "done";
+    }
+    catch (err) {
+      savedError = err;
+      logger.error("Failure during AddonRepository shutdown", err);
+      AddonManagerPrivate.recordException("AMI", "Async shutdown of AddonRepository", err);
+    }
+
+    logger.debug("Async provider shutdown done");
+    this.managerListeners.splice(0, this.managerListeners.length);
+    this.installListeners.splice(0, this.installListeners.length);
+    this.addonListeners.splice(0, this.addonListeners.length);
+    this.typeListeners.splice(0, this.typeListeners.length);
+    this.providerShutdowns.clear();
+    for (let type in this.startupChanges)
+      delete this.startupChanges[type];
+    gStarted = false;
+    gStartupComplete = false;
+    gShutdownBarrier = null;
+    gShutdownInProgress = false;
+    if (savedError) {
+      throw savedError;
+    }
+  }),
+
+  requestPlugins: function({ target: port }) {
+    // Lists all the properties that plugins.html needs
+    const NEEDED_PROPS = ["name", "pluginLibraries", "pluginFullpath", "version",
+                          "isActive", "blocklistState", "description",
+                          "pluginMimeTypes"];
+    function filterProperties(plugin) {
+      let filtered = {};
+      for (let prop of NEEDED_PROPS) {
+        filtered[prop] = plugin[prop];
+      }
+      return filtered;
+    }
+
+    AddonManager.getAddonsByTypes(["plugin"], function(aPlugins) {
+      port.sendAsyncMessage("PluginList", aPlugins.map(filterProperties));
+    });
+  },
+
+  /**
+   * Notified when a preference we're interested in has changed.
+   *
+   * @see nsIObserver
+   */
+  observe: function(aSubject, aTopic, aData) {
+    switch (aData) {
+      case PREF_EM_CHECK_COMPATIBILITY: {
+        let oldValue = gCheckCompatibility;
+        try {
+          gCheckCompatibility = Services.prefs.getBoolPref(PREF_EM_CHECK_COMPATIBILITY);
+        } catch (e) {
+          gCheckCompatibility = true;
+        }
+
+        this.callManagerListeners("onCompatibilityModeChanged");
+
+        if (gCheckCompatibility != oldValue)
+          this.updateAddonAppDisabledStates();
+
+        break;
+      }
+      case PREF_EM_STRICT_COMPATIBILITY: {
+        let oldValue = gStrictCompatibility;
+        try {
+          gStrictCompatibility = Services.prefs.getBoolPref(PREF_EM_STRICT_COMPATIBILITY);
+        } catch (e) {
+          gStrictCompatibility = true;
+        }
+
+        this.callManagerListeners("onCompatibilityModeChanged");
+
+        if (gStrictCompatibility != oldValue)
+          this.updateAddonAppDisabledStates();
+
+        break;
+      }
+      case PREF_EM_CHECK_UPDATE_SECURITY: {
+        let oldValue = gCheckUpdateSecurity;
+        try {
+          gCheckUpdateSecurity = Services.prefs.getBoolPref(PREF_EM_CHECK_UPDATE_SECURITY);
+        } catch (e) {
+          gCheckUpdateSecurity = true;
+        }
+
+        this.callManagerListeners("onCheckUpdateSecurityChanged");
+
+        if (gCheckUpdateSecurity != oldValue)
+          this.updateAddonAppDisabledStates();
+
+        break;
+      }
+      case PREF_EM_UPDATE_ENABLED: {
+        let oldValue = gUpdateEnabled;
+        try {
+          gUpdateEnabled = Services.prefs.getBoolPref(PREF_EM_UPDATE_ENABLED);
+        } catch (e) {
+          gUpdateEnabled = true;
+        }
+
+        this.callManagerListeners("onUpdateModeChanged");
+        break;
+      }
+      case PREF_EM_AUTOUPDATE_DEFAULT: {
+        let oldValue = gAutoUpdateDefault;
+        try {
+          gAutoUpdateDefault = Services.prefs.getBoolPref(PREF_EM_AUTOUPDATE_DEFAULT);
+        } catch (e) {
+          gAutoUpdateDefault = true;
+        }
+
+        this.callManagerListeners("onUpdateModeChanged");
+        break;
+      }
+      case PREF_EM_HOTFIX_ID: {
+        try {
+          gHotfixID = Services.prefs.getCharPref(PREF_EM_HOTFIX_ID);
+        } catch (e) {
+          gHotfixID = null;
+        }
+        break;
+      }
+      case PREF_MIN_WEBEXT_PLATFORM_VERSION: {
+        gWebExtensionsMinPlatformVersion = Services.prefs.getCharPref(PREF_MIN_WEBEXT_PLATFORM_VERSION);
+        break;
+      }
+    }
+  },
+
+  /**
+   * Replaces %...% strings in an addon url (update and updateInfo) with
+   * appropriate values.
+   *
+   * @param  aAddon
+   *         The Addon representing the add-on
+   * @param  aUri
+   *         The string representation of the URI to escape
+   * @param  aAppVersion
+   *         The optional application version to use for %APP_VERSION%
+   * @return The appropriately escaped URI.
+   */
+  escapeAddonURI: function(aAddon, aUri, aAppVersion)
+  {
+    if (!aAddon || typeof aAddon != "object")
+      throw Components.Exception("aAddon must be an Addon object",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!aUri || typeof aUri != "string")
+      throw Components.Exception("aUri must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (aAppVersion && typeof aAppVersion != "string")
+      throw Components.Exception("aAppVersion must be a string or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    var addonStatus = aAddon.userDisabled || aAddon.softDisabled ? "userDisabled"
+                                                                 : "userEnabled";
+
+    if (!aAddon.isCompatible)
+      addonStatus += ",incompatible";
+    if (aAddon.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED)
+      addonStatus += ",blocklisted";
+    if (aAddon.blocklistState == Ci.nsIBlocklistService.STATE_SOFTBLOCKED)
+      addonStatus += ",softblocked";
+
+    try {
+      var xpcomABI = Services.appinfo.XPCOMABI;
+    } catch (ex) {
+      xpcomABI = UNKNOWN_XPCOM_ABI;
+    }
+
+    let uri = aUri.replace(/%ITEM_ID%/g, aAddon.id);
+    uri = uri.replace(/%ITEM_VERSION%/g, aAddon.version);
+    uri = uri.replace(/%ITEM_STATUS%/g, addonStatus);
+    uri = uri.replace(/%APP_ID%/g, Services.appinfo.ID);
+    uri = uri.replace(/%APP_VERSION%/g, aAppVersion ? aAppVersion :
+                                                      Services.appinfo.version);
+    uri = uri.replace(/%REQ_VERSION%/g, UPDATE_REQUEST_VERSION);
+    uri = uri.replace(/%APP_OS%/g, Services.appinfo.OS);
+    uri = uri.replace(/%APP_ABI%/g, xpcomABI);
+    uri = uri.replace(/%APP_LOCALE%/g, getLocale());
+    uri = uri.replace(/%CURRENT_APP_VERSION%/g, Services.appinfo.version);
+
+    // Replace custom parameters (names of custom parameters must have at
+    // least 3 characters to prevent lookups for something like %D0%C8)
+    var catMan = null;
+    uri = uri.replace(/%(\w{3,})%/g, function(aMatch, aParam) {
+      if (!catMan) {
+        catMan = Cc["@mozilla.org/categorymanager;1"].
+                 getService(Ci.nsICategoryManager);
+      }
+
+      try {
+        var contractID = catMan.getCategoryEntry(CATEGORY_UPDATE_PARAMS, aParam);
+        var paramHandler = Cc[contractID].getService(Ci.nsIPropertyBag2);
+        return paramHandler.getPropertyAsAString(aParam);
+      }
+      catch (e) {
+        return aMatch;
+      }
+    });
+
+    // escape() does not properly encode + symbols in any embedded FVF strings.
+    return uri.replace(/\+/g, "%2B");
+  },
+
+  /**
+   * Performs a background update check by starting an update for all add-ons
+   * that can be updated.
+   * @return Promise{null} Resolves when the background update check is complete
+   *                       (the resulting addon installations may still be in progress).
+   */
+  backgroundUpdateCheck: function() {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    let buPromise = Task.spawn(function*() {
+      let hotfixID = this.hotfixID;
+
+      let appUpdateEnabled = Services.prefs.getBoolPref(PREF_APP_UPDATE_ENABLED) &&
+                             Services.prefs.getBoolPref(PREF_APP_UPDATE_AUTO);
+      let checkHotfix = hotfixID && appUpdateEnabled;
+
+      logger.debug("Background update check beginning");
+
+      Services.obs.notifyObservers(null, "addons-background-update-start", null);
+
+      if (this.updateEnabled) {
+        let scope = {};
+        Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm", scope);
+        scope.LightweightThemeManager.updateCurrentTheme();
+
+        let allAddons = yield new Promise((resolve, reject) => this.getAllAddons(resolve));
+
+        // Repopulate repository cache first, to ensure compatibility overrides
+        // are up to date before checking for addon updates.
+        yield AddonRepository.backgroundUpdateCheck();
+
+        // Keep track of all the async add-on updates happening in parallel
+        let updates = [];
+
+        for (let addon of allAddons) {
+          if (addon.id == hotfixID) {
+            continue;
+          }
+
+          // Check all add-ons for updates so that any compatibility updates will
+          // be applied
+          updates.push(new Promise((resolve, reject) => {
+            addon.findUpdates({
+              onUpdateAvailable: function(aAddon, aInstall) {
+                // Start installing updates when the add-on can be updated and
+                // background updates should be applied.
+                logger.debug("Found update for add-on ${id}", aAddon);
+                if (aAddon.permissions & AddonManager.PERM_CAN_UPGRADE &&
+                    AddonManager.shouldAutoUpdate(aAddon)) {
+                  // XXX we really should resolve when this install is done,
+                  // not when update-available check completes, no?
+                  logger.debug(`Starting upgrade install of ${aAddon.id}`);
+                  aInstall.install();
+                }
+              },
+
+              onUpdateFinished: aAddon => { logger.debug("onUpdateFinished for ${id}", aAddon); resolve(); }
+            }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+          }));
+        }
+        yield Promise.all(updates);
+      }
+
+      if (checkHotfix) {
+        var hotfixVersion = "";
+        try {
+          hotfixVersion = Services.prefs.getCharPref(PREF_EM_HOTFIX_LASTVERSION);
+        }
+        catch (e) { }
+
+        let url = null;
+        if (Services.prefs.getPrefType(PREF_EM_HOTFIX_URL) == Ci.nsIPrefBranch.PREF_STRING)
+          url = Services.prefs.getCharPref(PREF_EM_HOTFIX_URL);
+        else
+          url = Services.prefs.getCharPref(PREF_EM_UPDATE_BACKGROUND_URL);
+
+        // Build the URI from a fake add-on data.
+        url = AddonManager.escapeAddonURI({
+          id: hotfixID,
+          version: hotfixVersion,
+          userDisabled: false,
+          appDisabled: false
+        }, url);
+
+        Components.utils.import("resource://gre/modules/addons/AddonUpdateChecker.jsm");
+        let update = null;
+        try {
+          let foundUpdates = yield new Promise((resolve, reject) => {
+            AddonUpdateChecker.checkForUpdates(hotfixID, null, url, {
+              onUpdateCheckComplete: resolve,
+              onUpdateCheckError: reject
+            });
+          });
+          update = AddonUpdateChecker.getNewestCompatibleUpdate(foundUpdates);
+        } catch (e) {
+          // AUC.checkForUpdates already logged the error
+        }
+
+        // Check that we have a hotfix update, and it's newer than the one we already
+        // have installed (if any)
+        if (update) {
+          if (Services.vc.compare(hotfixVersion, update.version) < 0) {
+            logger.debug("Downloading hotfix version " + update.version);
+            let aInstall = yield new Promise((resolve, reject) =>
+              AddonManager.getInstallForURL(update.updateURL, resolve,
+                "application/x-xpinstall", update.updateHash, null,
+                null, update.version));
+
+            aInstall.addListener({
+              onDownloadEnded: function(aInstall) {
+                if (aInstall.addon.id != hotfixID) {
+                  logger.warn("The downloaded hotfix add-on did not have the " +
+                              "expected ID and so will not be installed.");
+                  aInstall.cancel();
+                  return;
+                }
+
+                // If XPIProvider has reported the hotfix as properly signed then
+                // there is nothing more to do here
+                if (aInstall.addon.signedState == AddonManager.SIGNEDSTATE_SIGNED)
+                  return;
+
+                try {
+                  if (!Services.prefs.getBoolPref(PREF_EM_CERT_CHECKATTRIBUTES))
+                    return;
+                }
+                catch (e) {
+                  // By default don't do certificate checks.
+                  return;
+                }
+
+                try {
+                  CertUtils.validateCert(aInstall.certificate,
+                                         CertUtils.readCertPrefs(PREF_EM_HOTFIX_CERTS));
+                }
+                catch (e) {
+                  logger.warn("The hotfix add-on was not signed by the expected " +
+                       "certificate and so will not be installed.", e);
+                  aInstall.cancel();
+                }
+              },
+
+              onInstallEnded: function(aInstall) {
+                // Remember the last successfully installed version.
+                Services.prefs.setCharPref(PREF_EM_HOTFIX_LASTVERSION,
+                                           aInstall.version);
+              },
+
+              onInstallCancelled: function(aInstall) {
+                // Revert to the previous version if the installation was
+                // cancelled.
+                Services.prefs.setCharPref(PREF_EM_HOTFIX_LASTVERSION,
+                                           hotfixVersion);
+              }
+            });
+
+            aInstall.install();
+          }
+        }
+      }
+
+      if (appUpdateEnabled) {
+        try {
+          yield AddonManagerInternal._getProviderByName("XPIProvider").updateSystemAddons();
+        }
+        catch (e) {
+          logger.warn("Failed to update system addons", e);
+        }
+      }
+
+      logger.debug("Background update check complete");
+      Services.obs.notifyObservers(null,
+                                   "addons-background-update-complete",
+                                   null);
+    }.bind(this));
+    // Fork the promise chain so we can log the error and let our caller see it too.
+    buPromise.then(null, e => logger.warn("Error in background update", e));
+    return buPromise;
+  },
+
+  /**
+   * Adds a add-on to the list of detected changes for this startup. If
+   * addStartupChange is called multiple times for the same add-on in the same
+   * startup then only the most recent change will be remembered.
+   *
+   * @param  aType
+   *         The type of change as a string. Providers can define their own
+   *         types of changes or use the existing defined STARTUP_CHANGE_*
+   *         constants
+   * @param  aID
+   *         The ID of the add-on
+   */
+  addStartupChange: function(aType, aID) {
+    if (!aType || typeof aType != "string")
+      throw Components.Exception("aType must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!aID || typeof aID != "string")
+      throw Components.Exception("aID must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (gStartupComplete)
+      return;
+    logger.debug("Registering startup change '" + aType + "' for " + aID);
+
+    // Ensure that an ID is only listed in one type of change
+    for (let type in this.startupChanges)
+      this.removeStartupChange(type, aID);
+
+    if (!(aType in this.startupChanges))
+      this.startupChanges[aType] = [];
+    this.startupChanges[aType].push(aID);
+  },
+
+  /**
+   * Removes a startup change for an add-on.
+   *
+   * @param  aType
+   *         The type of change
+   * @param  aID
+   *         The ID of the add-on
+   */
+  removeStartupChange: function(aType, aID) {
+    if (!aType || typeof aType != "string")
+      throw Components.Exception("aType must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!aID || typeof aID != "string")
+      throw Components.Exception("aID must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (gStartupComplete)
+      return;
+
+    if (!(aType in this.startupChanges))
+      return;
+
+    this.startupChanges[aType] = this.startupChanges[aType].filter(aItem => aItem != aID);
+  },
+
+  /**
+   * Calls all registered AddonManagerListeners with an event. Any parameters
+   * after the method parameter are passed to the listener.
+   *
+   * @param  aMethod
+   *         The method on the listeners to call
+   */
+  callManagerListeners: function(aMethod, ...aArgs) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!aMethod || typeof aMethod != "string")
+      throw Components.Exception("aMethod must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let managerListeners = this.managerListeners.slice(0);
+    for (let listener of managerListeners) {
+      try {
+        if (aMethod in listener)
+          listener[aMethod].apply(listener, aArgs);
+      }
+      catch (e) {
+        logger.warn("AddonManagerListener threw exception when calling " + aMethod, e);
+      }
+    }
+  },
+
+  /**
+   * Calls all registered InstallListeners with an event. Any parameters after
+   * the extraListeners parameter are passed to the listener.
+   *
+   * @param  aMethod
+   *         The method on the listeners to call
+   * @param  aExtraListeners
+   *         An optional array of extra InstallListeners to also call
+   * @return false if any of the listeners returned false, true otherwise
+   */
+  callInstallListeners: function(aMethod,
+                                 aExtraListeners, ...aArgs) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!aMethod || typeof aMethod != "string")
+      throw Components.Exception("aMethod must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (aExtraListeners && !Array.isArray(aExtraListeners))
+      throw Components.Exception("aExtraListeners must be an array or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let result = true;
+    let listeners;
+    if (aExtraListeners)
+      listeners = aExtraListeners.concat(this.installListeners);
+    else
+      listeners = this.installListeners.slice(0);
+
+    for (let listener of listeners) {
+      try {
+        if (aMethod in listener) {
+          if (listener[aMethod].apply(listener, aArgs) === false)
+            result = false;
+        }
+      }
+      catch (e) {
+        logger.warn("InstallListener threw exception when calling " + aMethod, e);
+      }
+    }
+    return result;
+  },
+
+  /**
+   * Calls all registered AddonListeners with an event. Any parameters after
+   * the method parameter are passed to the listener.
+   *
+   * @param  aMethod
+   *         The method on the listeners to call
+   */
+  callAddonListeners: function(aMethod, ...aArgs) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!aMethod || typeof aMethod != "string")
+      throw Components.Exception("aMethod must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let addonListeners = this.addonListeners.slice(0);
+    for (let listener of addonListeners) {
+      try {
+        if (aMethod in listener)
+          listener[aMethod].apply(listener, aArgs);
+      }
+      catch (e) {
+        logger.warn("AddonListener threw exception when calling " + aMethod, e);
+      }
+    }
+  },
+
+  /**
+   * Notifies all providers that an add-on has been enabled when that type of
+   * add-on only supports a single add-on being enabled at a time. This allows
+   * the providers to disable theirs if necessary.
+   *
+   * @param  aID
+   *         The ID of the enabled add-on
+   * @param  aType
+   *         The type of the enabled add-on
+   * @param  aPendingRestart
+   *         A boolean indicating if the change will only take place the next
+   *         time the application is restarted
+   */
+  notifyAddonChanged: function(aID, aType, aPendingRestart) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (aID && typeof aID != "string")
+      throw Components.Exception("aID must be a string or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!aType || typeof aType != "string")
+      throw Components.Exception("aType must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    // Temporary hack until bug 520124 lands.
+    // We can get here during synchronous startup, at which point it's
+    // considered unsafe (and therefore disallowed by AddonManager.jsm) to
+    // access providers that haven't been initialized yet. Since this is when
+    // XPIProvider is starting up, XPIProvider can't access itself via APIs
+    // going through AddonManager.jsm. Furthermore, LightweightThemeManager may
+    // not be initialized until after XPIProvider is, and therefore would also
+    // be unaccessible during XPIProvider startup. Thankfully, these are the
+    // only two uses of this API, and we know it's safe to use this API with
+    // both providers; so we have this hack to allow bypassing the normal
+    // safetey guard.
+    // The notifyAddonChanged/addonChanged API will be unneeded and therefore
+    // removed by bug 520124, so this is a temporary quick'n'dirty hack.
+    let providers = [...this.providers, ...this.pendingProviders];
+    for (let provider of providers) {
+      callProvider(provider, "addonChanged", null, aID, aType, aPendingRestart);
+    }
+  },
+
+  /**
+   * Notifies all providers they need to update the appDisabled property for
+   * their add-ons in response to an application change such as a blocklist
+   * update.
+   */
+  updateAddonAppDisabledStates: function() {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    this.callProviders("updateAddonAppDisabledStates");
+  },
+
+  /**
+   * Notifies all providers that the repository has updated its data for
+   * installed add-ons.
+   *
+   * @param  aCallback
+   *         Function to call when operation is complete.
+   */
+  updateAddonRepositoryData: function(aCallback) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (typeof aCallback != "function")
+      throw Components.Exception("aCallback must be a function",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    new AsyncObjectCaller(this.providers, "updateAddonRepositoryData", {
+      nextObject: function(aCaller, aProvider) {
+        callProviderAsync(aProvider, "updateAddonRepositoryData",
+                          aCaller.callNext.bind(aCaller));
+      },
+      noMoreObjects: function(aCaller) {
+        safeCall(aCallback);
+        // only tests should care about this
+        Services.obs.notifyObservers(null, "TEST:addon-repository-data-updated", null);
+      }
+    });
+  },
+
+  /**
+   * Asynchronously gets an AddonInstall for a URL.
+   *
+   * @param  aUrl
+   *         The string represenation of the URL the add-on is located at
+   * @param  aCallback
+   *         A callback to pass the AddonInstall to
+   * @param  aMimetype
+   *         The mimetype of the add-on
+   * @param  aHash
+   *         An optional hash of the add-on
+   * @param  aName
+   *         An optional placeholder name while the add-on is being downloaded
+   * @param  aIcons
+   *         Optional placeholder icons while the add-on is being downloaded
+   * @param  aVersion
+   *         An optional placeholder version while the add-on is being downloaded
+   * @param  aLoadGroup
+   *         An optional nsILoadGroup to associate any network requests with
+   * @throws if the aUrl, aCallback or aMimetype arguments are not specified
+   */
+  getInstallForURL: function(aUrl, aCallback, aMimetype,
+                                                  aHash, aName, aIcons,
+                                                  aVersion, aBrowser) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!aUrl || typeof aUrl != "string")
+      throw Components.Exception("aURL must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (typeof aCallback != "function")
+      throw Components.Exception("aCallback must be a function",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!aMimetype || typeof aMimetype != "string")
+      throw Components.Exception("aMimetype must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (aHash && typeof aHash != "string")
+      throw Components.Exception("aHash must be a string or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (aName && typeof aName != "string")
+      throw Components.Exception("aName must be a string or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (aIcons) {
+      if (typeof aIcons == "string")
+        aIcons = { "32": aIcons };
+      else if (typeof aIcons != "object")
+        throw Components.Exception("aIcons must be a string, an object or null",
+                                   Cr.NS_ERROR_INVALID_ARG);
+    } else {
+      aIcons = {};
+    }
+
+    if (aVersion && typeof aVersion != "string")
+      throw Components.Exception("aVersion must be a string or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (aBrowser && (!(aBrowser instanceof Ci.nsIDOMElement)))
+      throw Components.Exception("aBrowser must be a nsIDOMElement or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let providers = [...this.providers];
+    for (let provider of providers) {
+      if (callProvider(provider, "supportsMimetype", false, aMimetype)) {
+        callProviderAsync(provider, "getInstallForURL",
+                          aUrl, aHash, aName, aIcons, aVersion, aBrowser,
+                          function  getInstallForURL_safeCall(aInstall) {
+          safeCall(aCallback, aInstall);
+        });
+        return;
+      }
+    }
+    safeCall(aCallback, null);
+  },
+
+  /**
+   * Asynchronously gets an AddonInstall for an nsIFile.
+   *
+   * @param  aFile
+   *         The nsIFile where the add-on is located
+   * @param  aCallback
+   *         A callback to pass the AddonInstall to
+   * @param  aMimetype
+   *         An optional mimetype hint for the add-on
+   * @throws if the aFile or aCallback arguments are not specified
+   */
+  getInstallForFile: function(aFile, aCallback, aMimetype) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!(aFile instanceof Ci.nsIFile))
+      throw Components.Exception("aFile must be a nsIFile",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (typeof aCallback != "function")
+      throw Components.Exception("aCallback must be a function",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (aMimetype && typeof aMimetype != "string")
+      throw Components.Exception("aMimetype must be a string or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    new AsyncObjectCaller(this.providers, "getInstallForFile", {
+      nextObject: function(aCaller, aProvider) {
+        callProviderAsync(aProvider, "getInstallForFile", aFile,
+                          function(aInstall) {
+          if (aInstall)
+            safeCall(aCallback, aInstall);
+          else
+            aCaller.callNext();
+        });
+      },
+
+      noMoreObjects: function(aCaller) {
+        safeCall(aCallback, null);
+      }
+    });
+  },
+
+  /**
+   * Asynchronously gets all current AddonInstalls optionally limiting to a list
+   * of types.
+   *
+   * @param  aTypes
+   *         An optional array of types to retrieve. Each type is a string name
+   * @param  aCallback
+   *         A callback which will be passed an array of AddonInstalls
+   * @throws If the aCallback argument is not specified
+   */
+  getInstallsByTypes: function(aTypes, aCallback) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (aTypes && !Array.isArray(aTypes))
+      throw Components.Exception("aTypes must be an array or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (typeof aCallback != "function")
+      throw Components.Exception("aCallback must be a function",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let installs = [];
+
+    new AsyncObjectCaller(this.providers, "getInstallsByTypes", {
+      nextObject: function(aCaller, aProvider) {
+        callProviderAsync(aProvider, "getInstallsByTypes", aTypes,
+                          function(aProviderInstalls) {
+          if (aProviderInstalls) {
+            installs = installs.concat(aProviderInstalls);
+          }
+          aCaller.callNext();
+        });
+      },
+
+      noMoreObjects: function(aCaller) {
+        safeCall(aCallback, installs);
+      }
+    });
+  },
+
+  /**
+   * Asynchronously gets all current AddonInstalls.
+   *
+   * @param  aCallback
+   *         A callback which will be passed an array of AddonInstalls
+   */
+  getAllInstalls: function(aCallback) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    this.getInstallsByTypes(null, aCallback);
+  },
+
+  /**
+   * Synchronously map a URI to the corresponding Addon ID.
+   *
+   * Mappable URIs are limited to in-application resources belonging to the
+   * add-on, such as Javascript compartments, XUL windows, XBL bindings, etc.
+   * but do not include URIs from meta data, such as the add-on homepage.
+   *
+   * @param  aURI
+   *         nsIURI to map to an addon id
+   * @return string containing the Addon ID or null
+   * @see    amIAddonManager.mapURIToAddonID
+   */
+  mapURIToAddonID: function(aURI) {
+    if (!(aURI instanceof Ci.nsIURI)) {
+      throw Components.Exception("aURI is not a nsIURI",
+                                 Cr.NS_ERROR_INVALID_ARG);
+    }
+
+    // Try all providers
+    let providers = [...this.providers];
+    for (let provider of providers) {
+      var id = callProvider(provider, "mapURIToAddonID", null, aURI);
+      if (id !== null) {
+        return id;
+      }
+    }
+
+    return null;
+  },
+
+  /**
+   * Checks whether installation is enabled for a particular mimetype.
+   *
+   * @param  aMimetype
+   *         The mimetype to check
+   * @return true if installation is enabled for the mimetype
+   */
+  isInstallEnabled: function(aMimetype) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!aMimetype || typeof aMimetype != "string")
+      throw Components.Exception("aMimetype must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let providers = [...this.providers];
+    for (let provider of providers) {
+      if (callProvider(provider, "supportsMimetype", false, aMimetype) &&
+          callProvider(provider, "isInstallEnabled"))
+        return true;
+    }
+    return false;
+  },
+
+  /**
+   * Checks whether a particular source is allowed to install add-ons of a
+   * given mimetype.
+   *
+   * @param  aMimetype
+   *         The mimetype of the add-on
+   * @param  aInstallingPrincipal
+   *         The nsIPrincipal that initiated the install
+   * @return true if the source is allowed to install this mimetype
+   */
+  isInstallAllowed: function(aMimetype, aInstallingPrincipal) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!aMimetype || typeof aMimetype != "string")
+      throw Components.Exception("aMimetype must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!aInstallingPrincipal || !(aInstallingPrincipal instanceof Ci.nsIPrincipal))
+      throw Components.Exception("aInstallingPrincipal must be a nsIPrincipal",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let providers = [...this.providers];
+    for (let provider of providers) {
+      if (callProvider(provider, "supportsMimetype", false, aMimetype) &&
+          callProvider(provider, "isInstallAllowed", null, aInstallingPrincipal))
+        return true;
+    }
+    return false;
+  },
+
+  /**
+   * Starts installation of an array of AddonInstalls notifying the registered
+   * web install listener of blocked or started installs.
+   *
+   * @param  aMimetype
+   *         The mimetype of add-ons being installed
+   * @param  aBrowser
+   *         The optional browser element that started the installs
+   * @param  aInstallingPrincipal
+   *         The nsIPrincipal that initiated the install
+   * @param  aInstalls
+   *         The array of AddonInstalls to be installed
+   */
+  installAddonsFromWebpage: function(aMimetype, aBrowser,
+                                     aInstallingPrincipal, aInstalls) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!aMimetype || typeof aMimetype != "string")
+      throw Components.Exception("aMimetype must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (aBrowser && !(aBrowser instanceof Ci.nsIDOMElement))
+      throw Components.Exception("aSource must be a nsIDOMElement, or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!aInstallingPrincipal || !(aInstallingPrincipal instanceof Ci.nsIPrincipal))
+      throw Components.Exception("aInstallingPrincipal must be a nsIPrincipal",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!Array.isArray(aInstalls))
+      throw Components.Exception("aInstalls must be an array",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!("@mozilla.org/addons/web-install-listener;1" in Cc)) {
+      logger.warn("No web installer available, cancelling all installs");
+      for (let install of aInstalls)
+        install.cancel();
+      return;
+    }
+
+    // When a chrome in-content UI has loaded a <browser> inside to host a
+    // website we want to do our security checks on the inner-browser but
+    // notify front-end that install events came from the outer-browser (the
+    // main tab's browser). Check this by seeing if the browser we've been
+    // passed is in a content type docshell and if so get the outer-browser.
+    let topBrowser = aBrowser;
+    let docShell = aBrowser.ownerDocument.defaultView
+                           .QueryInterface(Ci.nsIInterfaceRequestor)
+                           .getInterface(Ci.nsIDocShell)
+                           .QueryInterface(Ci.nsIDocShellTreeItem);
+    if (docShell.itemType == Ci.nsIDocShellTreeItem.typeContent)
+      topBrowser = docShell.chromeEventHandler;
+
+    try {
+      let weblistener = Cc["@mozilla.org/addons/web-install-listener;1"].
+                        getService(Ci.amIWebInstallListener);
+
+      if (!this.isInstallEnabled(aMimetype)) {
+        for (let install of aInstalls)
+          install.cancel();
+
+        weblistener.onWebInstallDisabled(topBrowser, aInstallingPrincipal.URI,
+                                         aInstalls, aInstalls.length);
+        return;
+      }
+      else if (!aBrowser.contentPrincipal || !aInstallingPrincipal.subsumes(aBrowser.contentPrincipal)) {
+        for (let install of aInstalls)
+          install.cancel();
+
+        if (weblistener instanceof Ci.amIWebInstallListener2) {
+          weblistener.onWebInstallOriginBlocked(topBrowser, aInstallingPrincipal.URI,
+                                                aInstalls, aInstalls.length);
+        }
+        return;
+      }
+
+      // The installs may start now depending on the web install listener,
+      // listen for the browser navigating to a new origin and cancel the
+      // installs in that case.
+      new BrowserListener(aBrowser, aInstallingPrincipal, aInstalls);
+
+      if (!this.isInstallAllowed(aMimetype, aInstallingPrincipal)) {
+        if (weblistener.onWebInstallBlocked(topBrowser, aInstallingPrincipal.URI,
+                                            aInstalls, aInstalls.length)) {
+          for (let install of aInstalls)
+            install.install();
+        }
+      }
+      else if (weblistener.onWebInstallRequested(topBrowser, aInstallingPrincipal.URI,
+                                                 aInstalls, aInstalls.length)) {
+        for (let install of aInstalls)
+          install.install();
+      }
+    }
+    catch (e) {
+      // In the event that the weblistener throws during instantiation or when
+      // calling onWebInstallBlocked or onWebInstallRequested all of the
+      // installs should get cancelled.
+      logger.warn("Failure calling web installer", e);
+      for (let install of aInstalls)
+        install.cancel();
+    }
+  },
+
+  /**
+   * Adds a new InstallListener if the listener is not already registered.
+   *
+   * @param  aListener
+   *         The InstallListener to add
+   */
+  addInstallListener: function(aListener) {
+    if (!aListener || typeof aListener != "object")
+      throw Components.Exception("aListener must be a InstallListener object",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!this.installListeners.some(function(i) {
+      return i == aListener; }))
+      this.installListeners.push(aListener);
+  },
+
+  /**
+   * Removes an InstallListener if the listener is registered.
+   *
+   * @param  aListener
+   *         The InstallListener to remove
+   */
+  removeInstallListener: function(aListener) {
+    if (!aListener || typeof aListener != "object")
+      throw Components.Exception("aListener must be a InstallListener object",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let pos = 0;
+    while (pos < this.installListeners.length) {
+      if (this.installListeners[pos] == aListener)
+        this.installListeners.splice(pos, 1);
+      else
+        pos++;
+    }
+  },
+  /*
+   * Adds new or overrides existing UpgradeListener.
+   *
+   * @param  aInstanceID
+   *         The instance ID of an addon to register a listener for.
+   * @param  aCallback
+   *         The callback to invoke when updates are available for this addon.
+   * @throws if there is no addon matching the instanceID
+   */
+  addUpgradeListener: function(aInstanceID, aCallback) {
+   if (!aInstanceID || typeof aInstanceID != "symbol")
+     throw Components.Exception("aInstanceID must be a symbol",
+                                Cr.NS_ERROR_INVALID_ARG);
+
+  if (!aCallback || typeof aCallback != "function")
+    throw Components.Exception("aCallback must be a function",
+                               Cr.NS_ERROR_INVALID_ARG);
+
+   this.getAddonByInstanceID(aInstanceID).then(wrapper => {
+     if (!wrapper) {
+       throw Error("No addon matching instanceID:", aInstanceID.toString());
+     }
+     let addonId = wrapper.addonId();
+     logger.debug(`Registering upgrade listener for ${addonId}`);
+     this.upgradeListeners.set(addonId, aCallback);
+   });
+  },
+
+  /**
+   * Removes an UpgradeListener if the listener is registered.
+   *
+   * @param  aInstanceID
+   *         The instance ID of the addon to remove
+   */
+  removeUpgradeListener: function(aInstanceID) {
+    if (!aInstanceID || typeof aInstanceID != "symbol")
+      throw Components.Exception("aInstanceID must be a symbol",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    this.getAddonByInstanceID(aInstanceID).then(addon => {
+      if (!addon) {
+        throw Error("No addon for instanceID:", aInstanceID.toString());
+      }
+      if (this.upgradeListeners.has(addon.id)) {
+        this.upgradeListeners.delete(addon.id);
+      } else {
+        throw Error("No upgrade listener registered for addon ID:", addon.id);
+      }
+    });
+  },
+
+  /**
+   * Installs a temporary add-on from a local file or directory.
+   * @param  aFile
+   *         An nsIFile for the file or directory of the add-on to be
+   *         temporarily installed.
+   * @return a Promise that rejects if the add-on is not a valid restartless
+   *         add-on or if the same ID is already temporarily installed.
+   */
+  installTemporaryAddon: function(aFile) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!(aFile instanceof Ci.nsIFile))
+      throw Components.Exception("aFile must be a nsIFile",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    return AddonManagerInternal._getProviderByName("XPIProvider")
+                               .installTemporaryAddon(aFile);
+  },
+
+  installAddonFromSources: function(aFile) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!(aFile instanceof Ci.nsIFile))
+      throw Components.Exception("aFile must be a nsIFile",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    return AddonManagerInternal._getProviderByName("XPIProvider")
+                               .installAddonFromSources(aFile);
+  },
+
+  /**
+   * Returns an Addon corresponding to an instance ID.
+   * @param aInstanceID
+   *        An Addon Instance ID symbol
+   * @return {Promise}
+   * @resolves The found Addon or null if no such add-on exists.
+   * @rejects  Never
+   * @throws if the aInstanceID argument is not specified
+   *         or the AddonManager is not initialized
+   */
+   getAddonByInstanceID: function(aInstanceID) {
+     if (!gStarted)
+       throw Components.Exception("AddonManager is not initialized",
+                                  Cr.NS_ERROR_NOT_INITIALIZED);
+
+     if (!aInstanceID || typeof aInstanceID != "symbol")
+       throw Components.Exception("aInstanceID must be a Symbol()",
+                                  Cr.NS_ERROR_INVALID_ARG);
+
+     return AddonManagerInternal._getProviderByName("XPIProvider")
+                                .getAddonByInstanceID(aInstanceID);
+   },
+
+  /**
+   * Gets an icon from the icon set provided by the add-on
+   * that is closest to the specified size.
+   *
+   * The optional window parameter will be used to determine
+   * the screen resolution and select a more appropriate icon.
+   * Calling this method with 48px on retina screens will try to
+   * match an icon of size 96px.
+   *
+   * @param  aAddon
+   *         An addon object, meaning:
+   *         An object with either an icons property that is a key-value
+   *         list of icon size and icon URL, or an object having an iconURL
+   *         and icon64URL property.
+   * @param  aSize
+   *         Ideal icon size in pixels
+   * @param  aWindow
+   *         Optional window object for determining the correct scale.
+   * @return {String} The absolute URL of the icon or null if the addon doesn't have icons
+   */
+  getPreferredIconURL: function(aAddon, aSize, aWindow = undefined) {
+    if (aWindow && aWindow.devicePixelRatio) {
+      aSize *= aWindow.devicePixelRatio;
+    }
+
+    let icons = aAddon.icons;
+
+    // certain addon-types only have iconURLs
+    if (!icons) {
+      icons = {};
+      if (aAddon.iconURL) {
+        icons[32] = aAddon.iconURL;
+        icons[48] = aAddon.iconURL;
+      }
+      if (aAddon.icon64URL) {
+        icons[64] = aAddon.icon64URL;
+      }
+    }
+
+    // quick return if the exact size was found
+    if (icons[aSize]) {
+      return icons[aSize];
+    }
+
+    let bestSize = null;
+
+    for (let size of Object.keys(icons)) {
+      if (!INTEGER.test(size)) {
+        throw Components.Exception("Invalid icon size, must be an integer",
+                                   Cr.NS_ERROR_ILLEGAL_VALUE);
+      }
+
+      size = parseInt(size, 10);
+
+      if (!bestSize) {
+        bestSize = size;
+        continue;
+      }
+
+      if (size > aSize && bestSize > aSize) {
+        // If both best size and current size are larger than the wanted size then choose
+        // the one closest to the wanted size
+        bestSize = Math.min(bestSize, size);
+      }
+      else {
+        // Otherwise choose the largest of the two so we'll prefer sizes as close to below aSize
+        // or above aSize
+        bestSize = Math.max(bestSize, size);
+      }
+    }
+
+    return icons[bestSize] || null;
+  },
+
+  /**
+   * Asynchronously gets an add-on with a specific ID.
+   *
+   * @param  aID
+   *         The ID of the add-on to retrieve
+   * @return {Promise}
+   * @resolves The found Addon or null if no such add-on exists.
+   * @rejects  Never
+   * @throws if the aID argument is not specified
+   */
+  getAddonByID: function(aID) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!aID || typeof aID != "string")
+      throw Components.Exception("aID must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let promises = Array.from(this.providers,
+      p => promiseCallProvider(p, "getAddonByID", aID));
+    return Promise.all(promises).then(aAddons => {
+      return aAddons.find(a => !!a) || null;
+    });
+  },
+
+  /**
+   * Asynchronously get an add-on with a specific Sync GUID.
+   *
+   * @param  aGUID
+   *         String GUID of add-on to retrieve
+   * @param  aCallback
+   *         The callback to pass the retrieved add-on to.
+   * @throws if the aGUID or aCallback arguments are not specified
+   */
+  getAddonBySyncGUID: function(aGUID, aCallback) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!aGUID || typeof aGUID != "string")
+      throw Components.Exception("aGUID must be a non-empty string",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (typeof aCallback != "function")
+      throw Components.Exception("aCallback must be a function",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    new AsyncObjectCaller(this.providers, "getAddonBySyncGUID", {
+      nextObject: function(aCaller, aProvider) {
+        callProviderAsync(aProvider, "getAddonBySyncGUID", aGUID,
+                          function(aAddon) {
+          if (aAddon) {
+            safeCall(aCallback, aAddon);
+          } else {
+            aCaller.callNext();
+          }
+        });
+      },
+
+      noMoreObjects: function(aCaller) {
+        safeCall(aCallback, null);
+      }
+    });
+  },
+
+  /**
+   * Asynchronously gets an array of add-ons.
+   *
+   * @param  aIDs
+   *         The array of IDs to retrieve
+   * @return {Promise}
+   * @resolves The array of found add-ons.
+   * @rejects  Never
+   * @throws if the aIDs argument is not specified
+   */
+  getAddonsByIDs: function(aIDs) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (!Array.isArray(aIDs))
+      throw Components.Exception("aIDs must be an array",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let promises = aIDs.map(a => AddonManagerInternal.getAddonByID(a));
+    return Promise.all(promises);
+  },
+
+  /**
+   * Asynchronously gets add-ons of specific types.
+   *
+   * @param  aTypes
+   *         An optional array of types to retrieve. Each type is a string name
+   * @param  aCallback
+   *         The callback to pass an array of Addons to.
+   * @throws if the aCallback argument is not specified
+   */
+  getAddonsByTypes: function(aTypes, aCallback) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (aTypes && !Array.isArray(aTypes))
+      throw Components.Exception("aTypes must be an array or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (typeof aCallback != "function")
+      throw Components.Exception("aCallback must be a function",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let addons = [];
+
+    new AsyncObjectCaller(this.providers, "getAddonsByTypes", {
+      nextObject: function(aCaller, aProvider) {
+        callProviderAsync(aProvider, "getAddonsByTypes", aTypes,
+                          function(aProviderAddons) {
+          if (aProviderAddons) {
+            addons = addons.concat(aProviderAddons);
+          }
+          aCaller.callNext();
+        });
+      },
+
+      noMoreObjects: function(aCaller) {
+        safeCall(aCallback, addons);
+      }
+    });
+  },
+
+  /**
+   * Asynchronously gets all installed add-ons.
+   *
+   * @param  aCallback
+   *         A callback which will be passed an array of Addons
+   */
+  getAllAddons: function(aCallback) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (typeof aCallback != "function")
+      throw Components.Exception("aCallback must be a function",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    this.getAddonsByTypes(null, aCallback);
+  },
+
+  /**
+   * Asynchronously gets add-ons that have operations waiting for an application
+   * restart to complete.
+   *
+   * @param  aTypes
+   *         An optional array of types to retrieve. Each type is a string name
+   * @param  aCallback
+   *         The callback to pass the array of Addons to
+   * @throws if the aCallback argument is not specified
+   */
+  getAddonsWithOperationsByTypes: function(aTypes, aCallback) {
+    if (!gStarted)
+      throw Components.Exception("AddonManager is not initialized",
+                                 Cr.NS_ERROR_NOT_INITIALIZED);
+
+    if (aTypes && !Array.isArray(aTypes))
+      throw Components.Exception("aTypes must be an array or null",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (typeof aCallback != "function")
+      throw Components.Exception("aCallback must be a function",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let addons = [];
+
+    new AsyncObjectCaller(this.providers, "getAddonsWithOperationsByTypes", {
+      nextObject: function getAddonsWithOperationsByTypes_nextObject
+                           (aCaller, aProvider) {
+        callProviderAsync(aProvider, "getAddonsWithOperationsByTypes", aTypes,
+                          function getAddonsWithOperationsByTypes_concatAddons
+                                   (aProviderAddons) {
+          if (aProviderAddons) {
+            addons = addons.concat(aProviderAddons);
+          }
+          aCaller.callNext();
+        });
+      },
+
+      noMoreObjects: function(caller) {
+        safeCall(aCallback, addons);
+      }
+    });
+  },
+
+  /**
+   * Adds a new AddonManagerListener if the listener is not already registered.
+   *
+   * @param  aListener
+   *         The listener to add
+   */
+  addManagerListener: function(aListener) {
+    if (!aListener || typeof aListener != "object")
+      throw Components.Exception("aListener must be an AddonManagerListener object",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!this.managerListeners.some(i => i == aListener))
+      this.managerListeners.push(aListener);
+  },
+
+  /**
+   * Removes an AddonManagerListener if the listener is registered.
+   *
+   * @param  aListener
+   *         The listener to remove
+   */
+  removeManagerListener: function(aListener) {
+    if (!aListener || typeof aListener != "object")
+      throw Components.Exception("aListener must be an AddonManagerListener object",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let pos = 0;
+    while (pos < this.managerListeners.length) {
+      if (this.managerListeners[pos] == aListener)
+        this.managerListeners.splice(pos, 1);
+      else
+        pos++;
+    }
+  },
+
+  /**
+   * Adds a new AddonListener if the listener is not already registered.
+   *
+   * @param  aListener
+   *         The AddonListener to add
+   */
+  addAddonListener: function(aListener) {
+    if (!aListener || typeof aListener != "object")
+      throw Components.Exception("aListener must be an AddonListener object",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!this.addonListeners.some(i => i == aListener))
+      this.addonListeners.push(aListener);
+  },
+
+  /**
+   * Removes an AddonListener if the listener is registered.
+   *
+   * @param  aListener
+   *         The AddonListener to remove
+   */
+  removeAddonListener: function(aListener) {
+    if (!aListener || typeof aListener != "object")
+      throw Components.Exception("aListener must be an AddonListener object",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let pos = 0;
+    while (pos < this.addonListeners.length) {
+      if (this.addonListeners[pos] == aListener)
+        this.addonListeners.splice(pos, 1);
+      else
+        pos++;
+    }
+  },
+
+  /**
+   * Adds a new TypeListener if the listener is not already registered.
+   *
+   * @param  aListener
+   *         The TypeListener to add
+   */
+  addTypeListener: function(aListener) {
+    if (!aListener || typeof aListener != "object")
+      throw Components.Exception("aListener must be a TypeListener object",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!this.typeListeners.some(i => i == aListener))
+      this.typeListeners.push(aListener);
+  },
+
+  /**
+   * Removes an TypeListener if the listener is registered.
+   *
+   * @param  aListener
+   *         The TypeListener to remove
+   */
+  removeTypeListener: function(aListener) {
+    if (!aListener || typeof aListener != "object")
+      throw Components.Exception("aListener must be a TypeListener object",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    let pos = 0;
+    while (pos < this.typeListeners.length) {
+      if (this.typeListeners[pos] == aListener)
+        this.typeListeners.splice(pos, 1);
+      else
+        pos++;
+    }
+  },
+
+  get addonTypes() {
+    // A read-only wrapper around the types dictionary
+    return new Proxy(this.types, {
+      defineProperty(target, property, descriptor) {
+        // Not allowed to define properties
+        return false;
+      },
+
+      deleteProperty(target, property) {
+        // Not allowed to delete properties
+        return false;
+      },
+
+      get(target, property, receiver) {
+        if (!target.hasOwnProperty(property))
+          return undefined;
+
+        return target[property].type;
+      },
+
+      getOwnPropertyDescriptor(target, property) {
+        if (!target.hasOwnProperty(property))
+          return undefined;
+
+        return {
+          value: target[property].type,
+          writable: false,
+          // Claim configurability to maintain the proxy invariants.
+          configurable: true,
+          enumerable: true
+        }
+      },
+
+      preventExtensions(target) {
+        // Not allowed to prevent adding new properties
+        return false;
+      },
+
+      set(target, property, value, receiver) {
+        // Not allowed to set properties
+        return false;
+      },
+
+      setPrototypeOf(target, prototype) {
+        // Not allowed to change prototype
+        return false;
+      }
+    });
+  },
+
+  get autoUpdateDefault() {
+    return gAutoUpdateDefault;
+  },
+
+  set autoUpdateDefault(aValue) {
+    aValue = !!aValue;
+    if (aValue != gAutoUpdateDefault)
+      Services.prefs.setBoolPref(PREF_EM_AUTOUPDATE_DEFAULT, aValue);
+    return aValue;
+  },
+
+  get checkCompatibility() {
+    return gCheckCompatibility;
+  },
+
+  set checkCompatibility(aValue) {
+    aValue = !!aValue;
+    if (aValue != gCheckCompatibility) {
+      if (!aValue)
+        Services.prefs.setBoolPref(PREF_EM_CHECK_COMPATIBILITY, false);
+      else
+        Services.prefs.clearUserPref(PREF_EM_CHECK_COMPATIBILITY);
+    }
+    return aValue;
+  },
+
+  get strictCompatibility() {
+    return gStrictCompatibility;
+  },
+
+  set strictCompatibility(aValue) {
+    aValue = !!aValue;
+    if (aValue != gStrictCompatibility)
+      Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, aValue);
+    return aValue;
+  },
+
+  get checkUpdateSecurityDefault() {
+    return gCheckUpdateSecurityDefault;
+  },
+
+  get checkUpdateSecurity() {
+    return gCheckUpdateSecurity;
+  },
+
+  set checkUpdateSecurity(aValue) {
+    aValue = !!aValue;
+    if (aValue != gCheckUpdateSecurity) {
+      if (aValue != gCheckUpdateSecurityDefault)
+        Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, aValue);
+      else
+        Services.prefs.clearUserPref(PREF_EM_CHECK_UPDATE_SECURITY);
+    }
+    return aValue;
+  },
+
+  get updateEnabled() {
+    return gUpdateEnabled;
+  },
+
+  set updateEnabled(aValue) {
+    aValue = !!aValue;
+    if (aValue != gUpdateEnabled)
+      Services.prefs.setBoolPref(PREF_EM_UPDATE_ENABLED, aValue);
+    return aValue;
+  },
+
+  get hotfixID() {
+    return gHotfixID;
+  },
+
+  webAPI: {
+    // installs maps integer ids to AddonInstall instances.
+    installs: new Map(),
+    nextInstall: 0,
+
+    sendEvent: null,
+    setEventHandler(fn) {
+      this.sendEvent = fn;
+    },
+
+    getAddonByID(target, id) {
+      return new Promise(resolve => {
+        AddonManager.getAddonByID(id, (addon) => {
+          resolve(webAPIForAddon(addon));
+        });
+      });
+    },
+
+    // helper to copy (and convert) the properties we care about
+    copyProps(install, obj) {
+      obj.state = AddonManager.stateToString(install.state);
+      obj.error = AddonManager.errorToString(install.error);
+      obj.progress = install.progress;
+      obj.maxProgress = install.maxProgress;
+    },
+
+    makeListener(id, mm) {
+      const events = [
+        "onDownloadStarted",
+        "onDownloadProgress",
+        "onDownloadEnded",
+        "onDownloadCancelled",
+        "onDownloadFailed",
+        "onInstallStarted",
+        "onInstallEnded",
+        "onInstallCancelled",
+        "onInstallFailed",
+      ];
+
+      let listener = {};
+      events.forEach(event => {
+        listener[event] = (install) => {
+          let data = {event, id};
+          AddonManager.webAPI.copyProps(install, data);
+          this.sendEvent(mm, data);
+        }
+      });
+      return listener;
+    },
+
+    forgetInstall(id) {
+      let info = this.installs.get(id);
+      if (!info) {
+        throw new Error(`forgetInstall cannot find ${id}`);
+      }
+      info.install.removeListener(info.listener);
+      this.installs.delete(id);
+    },
+
+    createInstall(target, options) {
+      // Throw an appropriate error if the given URL is not valid
+      // as an installation source.  Return silently if it is okay.
+      function checkInstallUrl(url) {
+        let host = Services.io.newURI(options.url, null, null).host;
+        if (WEBAPI_INSTALL_HOSTS.includes(host)) {
+          return;
+        }
+        if (Services.prefs.getBoolPref(PREF_WEBAPI_TESTING)
+            && WEBAPI_TEST_INSTALL_HOSTS.includes(host)) {
+          return;
+        }
+
+        throw new Error(`Install from ${host} not permitted`);
+      }
+
+      return new Promise((resolve, reject) => {
+        try {
+          checkInstallUrl(options.url);
+        } catch (err) {
+          reject({message: err.message});
+          return;
+        }
+
+        let newInstall = install => {
+          let id = this.nextInstall++;
+          let listener = this.makeListener(id, target.messageManager);
+          install.addListener(listener);
+
+          this.installs.set(id, {install, target, listener});
+
+          let result = {id};
+          this.copyProps(install, result);
+          resolve(result);
+        };
+        AddonManager.getInstallForURL(options.url, newInstall, "application/x-xpinstall", options.hash);
+      });
+    },
+
+    addonUninstall(target, id) {
+      return new Promise(resolve => {
+        AddonManager.getAddonByID(id, addon => {
+          if (!addon) {
+            resolve(false);
+          }
+
+          try {
+            addon.uninstall();
+            resolve(true);
+          } catch (err) {
+            Cu.reportError(err);
+            resolve(false);
+          }
+        });
+      });
+    },
+
+    addonSetEnabled(target, id, value) {
+      return new Promise((resolve, reject) => {
+        AddonManager.getAddonByID(id, addon => {
+          if (!addon) {
+            reject({message: `No such addon ${id}`});
+          }
+          addon.userDisabled = !value;
+          resolve();
+        });
+      });
+    },
+
+    addonInstallDoInstall(target, id) {
+      let state = this.installs.get(id);
+      if (!state) {
+        return Promise.reject(`invalid id ${id}`);
+      }
+      return Promise.resolve(state.install.install());
+    },
+
+    addonInstallCancel(target, id) {
+      let state = this.installs.get(id);
+      if (!state) {
+        return Promise.reject(`invalid id ${id}`);
+      }
+      return Promise.resolve(state.install.cancel());
+    },
+
+    clearInstalls(ids) {
+      for (let id of ids) {
+        this.forgetInstall(id);
+      }
+    },
+
+    clearInstallsFrom(mm) {
+      for (let [id, info] of this.installs) {
+        if (info.target.messageManager == mm) {
+          this.forgetInstall(id);
+        }
+      }
+    },
+  },
+};
+
+/**
+ * Should not be used outside of core Mozilla code. This is a private API for
+ * the startup and platform integration code to use. Refer to the methods on
+ * AddonManagerInternal for documentation however note that these methods are
+ * subject to change at any time.
+ */
+this.AddonManagerPrivate = {
+  startup: function() {
+    AddonManagerInternal.startup();
+  },
+
+  registerProvider: function(aProvider, aTypes) {
+    AddonManagerInternal.registerProvider(aProvider, aTypes);
+  },
+
+  unregisterProvider: function(aProvider) {
+    AddonManagerInternal.unregisterProvider(aProvider);
+  },
+
+  markProviderSafe: function(aProvider) {
+    AddonManagerInternal.markProviderSafe(aProvider);
+  },
+
+  backgroundUpdateCheck: function() {
+    return AddonManagerInternal.backgroundUpdateCheck();
+  },
+
+  backgroundUpdateTimerHandler() {
+    // Don't call through to the real update check if no checks are enabled.
+    let checkHotfix = AddonManagerInternal.hotfixID &&
+                      Services.prefs.getBoolPref(PREF_APP_UPDATE_ENABLED) &&
+                      Services.prefs.getBoolPref(PREF_APP_UPDATE_AUTO);
+
+    if (!AddonManagerInternal.updateEnabled && !checkHotfix) {
+      logger.info("Skipping background update check");
+      return;
+    }
+    // Don't return the promise here, since the caller doesn't care.
+    AddonManagerInternal.backgroundUpdateCheck();
+  },
+
+  addStartupChange: function(aType, aID) {
+    AddonManagerInternal.addStartupChange(aType, aID);
+  },
+
+  removeStartupChange: function(aType, aID) {
+    AddonManagerInternal.removeStartupChange(aType, aID);
+  },
+
+  notifyAddonChanged: function(aID, aType, aPendingRestart) {
+    AddonManagerInternal.notifyAddonChanged(aID, aType, aPendingRestart);
+  },
+
+  updateAddonAppDisabledStates: function() {
+    AddonManagerInternal.updateAddonAppDisabledStates();
+  },
+
+  updateAddonRepositoryData: function(aCallback) {
+    AddonManagerInternal.updateAddonRepositoryData(aCallback);
+  },
+
+  callInstallListeners: function(...aArgs) {
+    return AddonManagerInternal.callInstallListeners.apply(AddonManagerInternal,
+                                                           aArgs);
+  },
+
+  callAddonListeners: function(...aArgs) {
+    AddonManagerInternal.callAddonListeners.apply(AddonManagerInternal, aArgs);
+  },
+
+  AddonAuthor: AddonAuthor,
+
+  AddonScreenshot: AddonScreenshot,
+
+  AddonCompatibilityOverride: AddonCompatibilityOverride,
+
+  AddonType: AddonType,
+
+  recordTimestamp: function(name, value) {
+    AddonManagerInternal.recordTimestamp(name, value);
+  },
+
+  _simpleMeasures: {},
+  recordSimpleMeasure: function(name, value) {
+    this._simpleMeasures[name] = value;
+  },
+
+  recordException: function(aModule, aContext, aException) {
+    let report = {
+      module: aModule,
+      context: aContext
+    };
+
+    if (typeof aException == "number") {
+      report.message = Components.Exception("", aException).name;
+    }
+    else {
+      report.message = aException.toString();
+      if (aException.fileName) {
+        report.file = aException.fileName;
+        report.line = aException.lineNumber;
+      }
+    }
+
+    this._simpleMeasures.exception = report;
+  },
+
+  getSimpleMeasures: function() {
+    return this._simpleMeasures;
+  },
+
+  getTelemetryDetails: function() {
+    return AddonManagerInternal.telemetryDetails;
+  },
+
+  setTelemetryDetails: function(aProvider, aDetails) {
+    AddonManagerInternal.telemetryDetails[aProvider] = aDetails;
+  },
+
+  // Start a timer, record a simple measure of the time interval when
+  // timer.done() is called
+  simpleTimer: function(aName) {
+    let startTime = Cu.now();
+    return {
+      done: () => this.recordSimpleMeasure(aName, Math.round(Cu.now() - startTime))
+    };
+  },
+
+  /**
+   * Helper to call update listeners when no update is available.
+   *
+   * This can be used as an implementation for Addon.findUpdates() when
+   * no update mechanism is available.
+   */
+  callNoUpdateListeners: function(addon, listener, reason, appVersion, platformVersion) {
+    if ("onNoCompatibilityUpdateAvailable" in listener) {
+      safeCall(listener.onNoCompatibilityUpdateAvailable.bind(listener), addon);
+    }
+    if ("onNoUpdateAvailable" in listener) {
+      safeCall(listener.onNoUpdateAvailable.bind(listener), addon);
+    }
+    if ("onUpdateFinished" in listener) {
+      safeCall(listener.onUpdateFinished.bind(listener), addon);
+    }
+  },
+
+  get webExtensionsMinPlatformVersion() {
+    return gWebExtensionsMinPlatformVersion;
+  },
+
+  hasUpgradeListener: function(aId) {
+    return AddonManagerInternal.upgradeListeners.has(aId);
+  },
+
+  getUpgradeListener: function(aId) {
+    return AddonManagerInternal.upgradeListeners.get(aId);
+  },
+};
+
+/**
+ * This is the public API that UI and developers should be calling. All methods
+ * just forward to AddonManagerInternal.
+ */
+this.AddonManager = {
+  // Constants for the AddonInstall.state property
+  // These will show up as AddonManager.STATE_* (eg, STATE_AVAILABLE)
+  _states: new Map([
+    // The install is available for download.
+    ["STATE_AVAILABLE",  0],
+    // The install is being downloaded.
+    ["STATE_DOWNLOADING",  1],
+    // The install is checking for compatibility information.
+    ["STATE_CHECKING", 2],
+    // The install is downloaded and ready to install.
+    ["STATE_DOWNLOADED", 3],
+    // The download failed.
+    ["STATE_DOWNLOAD_FAILED", 4],
+    // The install has been postponed.
+    ["STATE_POSTPONED", 5],
+    // The add-on is being installed.
+    ["STATE_INSTALLING", 6],
+    // The add-on has been installed.
+    ["STATE_INSTALLED", 7],
+    // The install failed.
+    ["STATE_INSTALL_FAILED", 8],
+    // The install has been cancelled.
+    ["STATE_CANCELLED", 9],
+  ]),
+
+  // Constants representing different types of errors while downloading an
+  // add-on.
+  // These will show up as AddonManager.ERROR_* (eg, ERROR_NETWORK_FAILURE)
+  _errors: new Map([
+    // The download failed due to network problems.
+    ["ERROR_NETWORK_FAILURE", -1],
+    // The downloaded file did not match the provided hash.
+    ["ERROR_INCORRECT_HASH", -2],
+    // The downloaded file seems to be corrupted in some way.
+    ["ERROR_CORRUPT_FILE", -3],
+    // An error occured trying to write to the filesystem.
+    ["ERROR_FILE_ACCESS", -4],
+    // The add-on must be signed and isn't.
+    ["ERROR_SIGNEDSTATE_REQUIRED", -5],
+    // The downloaded add-on had a different type than expected.
+    ["ERROR_UNEXPECTED_ADDON_TYPE", -6],
+    // The addon did not have the expected ID
+    ["ERROR_INCORRECT_ID", -7],
+  ]),
+
+  // These must be kept in sync with AddonUpdateChecker.
+  // No error was encountered.
+  UPDATE_STATUS_NO_ERROR: 0,
+  // The update check timed out
+  UPDATE_STATUS_TIMEOUT: -1,
+  // There was an error while downloading the update information.
+  UPDATE_STATUS_DOWNLOAD_ERROR: -2,
+  // The update information was malformed in some way.
+  UPDATE_STATUS_PARSE_ERROR: -3,
+  // The update information was not in any known format.
+  UPDATE_STATUS_UNKNOWN_FORMAT: -4,
+  // The update information was not correctly signed or there was an SSL error.
+  UPDATE_STATUS_SECURITY_ERROR: -5,
+  // The update was cancelled.
+  UPDATE_STATUS_CANCELLED: -6,
+
+  // Constants to indicate why an update check is being performed
+  // Update check has been requested by the user.
+  UPDATE_WHEN_USER_REQUESTED: 1,
+  // Update check is necessary to see if the Addon is compatibile with a new
+  // version of the application.
+  UPDATE_WHEN_NEW_APP_DETECTED: 2,
+  // Update check is necessary because a new application has been installed.
+  UPDATE_WHEN_NEW_APP_INSTALLED: 3,
+  // Update check is a regular background update check.
+  UPDATE_WHEN_PERIODIC_UPDATE: 16,
+  // Update check is needed to check an Addon that is being installed.
+  UPDATE_WHEN_ADDON_INSTALLED: 17,
+
+  // Constants for operations in Addon.pendingOperations
+  // Indicates that the Addon has no pending operations.
+  PENDING_NONE: 0,
+  // Indicates that the Addon will be enabled after the application restarts.
+  PENDING_ENABLE: 1,
+  // Indicates that the Addon will be disabled after the application restarts.
+  PENDING_DISABLE: 2,
+  // Indicates that the Addon will be uninstalled after the application restarts.
+  PENDING_UNINSTALL: 4,
+  // Indicates that the Addon will be installed after the application restarts.
+  PENDING_INSTALL: 8,
+  PENDING_UPGRADE: 16,
+
+  // Constants for operations in Addon.operationsRequiringRestart
+  // Indicates that restart isn't required for any operation.
+  OP_NEEDS_RESTART_NONE: 0,
+  // Indicates that restart is required for enabling the addon.
+  OP_NEEDS_RESTART_ENABLE: 1,
+  // Indicates that restart is required for disabling the addon.
+  OP_NEEDS_RESTART_DISABLE: 2,
+  // Indicates that restart is required for uninstalling the addon.
+  OP_NEEDS_RESTART_UNINSTALL: 4,
+  // Indicates that restart is required for installing the addon.
+  OP_NEEDS_RESTART_INSTALL: 8,
+
+  // Constants for permissions in Addon.permissions.
+  // Indicates that the Addon can be uninstalled.
+  PERM_CAN_UNINSTALL: 1,
+  // Indicates that the Addon can be enabled by the user.
+  PERM_CAN_ENABLE: 2,
+  // Indicates that the Addon can be disabled by the user.
+  PERM_CAN_DISABLE: 4,
+  // Indicates that the Addon can be upgraded.
+  PERM_CAN_UPGRADE: 8,
+  // Indicates that the Addon can be set to be optionally enabled
+  // on a case-by-case basis.
+  PERM_CAN_ASK_TO_ACTIVATE: 16,
+
+  // General descriptions of where items are installed.
+  // Installed in this profile.
+  SCOPE_PROFILE: 1,
+  // Installed for all of this user's profiles.
+  SCOPE_USER: 2,
+  // Installed and owned by the application.
+  SCOPE_APPLICATION: 4,
+  // Installed for all users of the computer.
+  SCOPE_SYSTEM: 8,
+  // Installed temporarily
+  SCOPE_TEMPORARY: 16,
+  // The combination of all scopes.
+  SCOPE_ALL: 31,
+
+  // Add-on type is expected to be displayed in the UI in a list.
+  VIEW_TYPE_LIST: "list",
+
+  // Constants describing how add-on types behave.
+
+  // If no add-ons of a type are installed, then the category for that add-on
+  // type should be hidden in the UI.
+  TYPE_UI_HIDE_EMPTY: 16,
+  // Indicates that this add-on type supports the ask-to-activate state.
+  // That is, add-ons of this type can be set to be optionally enabled
+  // on a case-by-case basis.
+  TYPE_SUPPORTS_ASK_TO_ACTIVATE: 32,
+  // The add-on type natively supports undo for restartless uninstalls.
+  // If this flag is not specified, the UI is expected to handle this via
+  // disabling the add-on, and performing the actual uninstall at a later time.
+  TYPE_SUPPORTS_UNDO_RESTARTLESS_UNINSTALL: 64,
+
+  // Constants for Addon.applyBackgroundUpdates.
+  // Indicates that the Addon should not update automatically.
+  AUTOUPDATE_DISABLE: 0,
+  // Indicates that the Addon should update automatically only if
+  // that's the global default.
+  AUTOUPDATE_DEFAULT: 1,
+  // Indicates that the Addon should update automatically.
+  AUTOUPDATE_ENABLE: 2,
+
+  // Constants for how Addon options should be shown.
+  // Options will be opened in a new window
+  OPTIONS_TYPE_DIALOG: 1,
+  // Options will be displayed within the AM detail view
+  OPTIONS_TYPE_INLINE: 2,
+  // Options will be displayed in a new tab, if possible
+  OPTIONS_TYPE_TAB: 3,
+  // Same as OPTIONS_TYPE_INLINE, but no Preferences button will be shown.
+  // Used to indicate that only non-interactive information will be shown.
+  OPTIONS_TYPE_INLINE_INFO: 4,
+  // Similar to OPTIONS_TYPE_INLINE, but rather than generating inline
+  // options from a specially-formatted XUL file, the contents of the
+  // file are simply displayed in an inline <browser> element.
+  OPTIONS_TYPE_INLINE_BROWSER: 5,
+
+  // Constants for displayed or hidden options notifications
+  // Options notification will be displayed
+  OPTIONS_NOTIFICATION_DISPLAYED: "addon-options-displayed",
+  // Options notification will be hidden
+  OPTIONS_NOTIFICATION_HIDDEN: "addon-options-hidden",
+
+  // Constants for getStartupChanges, addStartupChange and removeStartupChange
+  // Add-ons that were detected as installed during startup. Doesn't include
+  // add-ons that were pending installation the last time the application ran.
+  STARTUP_CHANGE_INSTALLED: "installed",
+  // Add-ons that were detected as changed during startup. This includes an
+  // add-on moving to a different location, changing version or just having
+  // been detected as possibly changed.
+  STARTUP_CHANGE_CHANGED: "changed",
+  // Add-ons that were detected as uninstalled during startup. Doesn't include
+  // add-ons that were pending uninstallation the last time the application ran.
+  STARTUP_CHANGE_UNINSTALLED: "uninstalled",
+  // Add-ons that were detected as disabled during startup, normally because of
+  // an application change making an add-on incompatible. Doesn't include
+  // add-ons that were pending being disabled the last time the application ran.
+  STARTUP_CHANGE_DISABLED: "disabled",
+  // Add-ons that were detected as enabled during startup, normally because of
+  // an application change making an add-on compatible. Doesn't include
+  // add-ons that were pending being enabled the last time the application ran.
+  STARTUP_CHANGE_ENABLED: "enabled",
+
+  // Constants for Addon.signedState. Any states that should cause an add-on
+  // to be unusable in builds that require signing should have negative values.
+  // Add-on signing is not required, e.g. because the pref is disabled.
+  SIGNEDSTATE_NOT_REQUIRED: undefined,
+  // Add-on is signed but signature verification has failed.
+  SIGNEDSTATE_BROKEN: -2,
+  // Add-on may be signed but by an certificate that doesn't chain to our
+  // our trusted certificate.
+  SIGNEDSTATE_UNKNOWN: -1,
+  // Add-on is unsigned.
+  SIGNEDSTATE_MISSING: 0,
+  // Add-on is preliminarily reviewed.
+  SIGNEDSTATE_PRELIMINARY: 1,
+  // Add-on is fully reviewed.
+  SIGNEDSTATE_SIGNED: 2,
+  // Add-on is system add-on.
+  SIGNEDSTATE_SYSTEM: 3,
+
+  // Constants for the Addon.userDisabled property
+  // Indicates that the userDisabled state of this add-on is currently
+  // ask-to-activate. That is, it can be conditionally enabled on a
+  // case-by-case basis.
+  STATE_ASK_TO_ACTIVATE: "askToActivate",
+
+  get __AddonManagerInternal__() {
+    return AppConstants.DEBUG ? AddonManagerInternal : undefined;
+  },
+
+  get isReady() {
+    return gStartupComplete && !gShutdownInProgress;
+  },
+
+  init() {
+    this._stateToString = new Map();
+    for (let [name, value] of this._states) {
+      this[name] = value;
+      this._stateToString.set(value, name);
+    }
+    this._errorToString = new Map();
+    for (let [name, value] of this._errors) {
+      this[name] = value;
+      this._errorToString.set(value, name);
+    }
+  },
+
+  stateToString(state) {
+    return this._stateToString.get(state);
+  },
+
+  errorToString(err) {
+    return err ? this._errorToString.get(err) : null;
+  },
+
+  getInstallForURL: function(aUrl, aCallback, aMimetype,
+                                                 aHash, aName, aIcons,
+                                                 aVersion, aBrowser) {
+    AddonManagerInternal.getInstallForURL(aUrl, aCallback, aMimetype, aHash,
+                                          aName, aIcons, aVersion, aBrowser);
+  },
+
+  getInstallForFile: function(aFile, aCallback, aMimetype) {
+    AddonManagerInternal.getInstallForFile(aFile, aCallback, aMimetype);
+  },
+
+  /**
+   * Gets an array of add-on IDs that changed during the most recent startup.
+   *
+   * @param  aType
+   *         The type of startup change to get
+   * @return An array of add-on IDs
+   */
+  getStartupChanges: function(aType) {
+    if (!(aType in AddonManagerInternal.startupChanges))
+      return [];
+    return AddonManagerInternal.startupChanges[aType].slice(0);
+  },
+
+  getAddonByID: function(aID, aCallback) {
+    if (typeof aCallback != "function")
+      throw Components.Exception("aCallback must be a function",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    AddonManagerInternal.getAddonByID(aID)
+                        .then(makeSafe(aCallback))
+                        .catch(logger.error);
+  },
+
+  getAddonBySyncGUID: function(aGUID, aCallback) {
+    AddonManagerInternal.getAddonBySyncGUID(aGUID, aCallback);
+  },
+
+  getAddonsByIDs: function(aIDs, aCallback) {
+    if (typeof aCallback != "function")
+      throw Components.Exception("aCallback must be a function",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    AddonManagerInternal.getAddonsByIDs(aIDs)
+                        .then(makeSafe(aCallback))
+                        .catch(logger.error);
+  },
+
+  getAddonsWithOperationsByTypes: function(aTypes, aCallback) {
+    AddonManagerInternal.getAddonsWithOperationsByTypes(aTypes, aCallback);
+  },
+
+  getAddonsByTypes: function(aTypes, aCallback) {
+    AddonManagerInternal.getAddonsByTypes(aTypes, aCallback);
+  },
+
+  getAllAddons: function(aCallback) {
+    AddonManagerInternal.getAllAddons(aCallback);
+  },
+
+  getInstallsByTypes: function(aTypes, aCallback) {
+    AddonManagerInternal.getInstallsByTypes(aTypes, aCallback);
+  },
+
+  getAllInstalls: function(aCallback) {
+    AddonManagerInternal.getAllInstalls(aCallback);
+  },
+
+  mapURIToAddonID: function(aURI) {
+    return AddonManagerInternal.mapURIToAddonID(aURI);
+  },
+
+  isInstallEnabled: function(aType) {
+    return AddonManagerInternal.isInstallEnabled(aType);
+  },
+
+  isInstallAllowed: function(aType, aInstallingPrincipal) {
+    return AddonManagerInternal.isInstallAllowed(aType, aInstallingPrincipal);
+  },
+
+  installAddonsFromWebpage: function(aType, aBrowser, aInstallingPrincipal,
+                                     aInstalls) {
+    AddonManagerInternal.installAddonsFromWebpage(aType, aBrowser,
+                                                  aInstallingPrincipal,
+                                                  aInstalls);
+  },
+
+  installTemporaryAddon: function(aDirectory) {
+    return AddonManagerInternal.installTemporaryAddon(aDirectory);
+  },
+
+  installAddonFromSources: function(aDirectory) {
+    return AddonManagerInternal.installAddonFromSources(aDirectory);
+  },
+
+  getAddonByInstanceID: function(aInstanceID) {
+    return AddonManagerInternal.getAddonByInstanceID(aInstanceID);
+  },
+
+  addManagerListener: function(aListener) {
+    AddonManagerInternal.addManagerListener(aListener);
+  },
+
+  removeManagerListener: function(aListener) {
+    AddonManagerInternal.removeManagerListener(aListener);
+  },
+
+  addInstallListener: function(aListener) {
+    AddonManagerInternal.addInstallListener(aListener);
+  },
+
+  removeInstallListener: function(aListener) {
+    AddonManagerInternal.removeInstallListener(aListener);
+  },
+
+  getUpgradeListener: function(aId) {
+    return AddonManagerInternal.upgradeListeners.get(aId);
+  },
+
+  addUpgradeListener: function(aInstanceID, aCallback) {
+    AddonManagerInternal.addUpgradeListener(aInstanceID, aCallback);
+  },
+
+  removeUpgradeListener: function(aInstanceID) {
+    AddonManagerInternal.removeUpgradeListener(aInstanceID);
+  },
+
+  addAddonListener: function(aListener) {
+    AddonManagerInternal.addAddonListener(aListener);
+  },
+
+  removeAddonListener: function(aListener) {
+    AddonManagerInternal.removeAddonListener(aListener);
+  },
+
+  addTypeListener: function(aListener) {
+    AddonManagerInternal.addTypeListener(aListener);
+  },
+
+  removeTypeListener: function(aListener) {
+    AddonManagerInternal.removeTypeListener(aListener);
+  },
+
+  get addonTypes() {
+    return AddonManagerInternal.addonTypes;
+  },
+
+  /**
+   * Determines whether an Addon should auto-update or not.
+   *
+   * @param  aAddon
+   *         The Addon representing the add-on
+   * @return true if the addon should auto-update, false otherwise.
+   */
+  shouldAutoUpdate: function(aAddon) {
+    if (!aAddon || typeof aAddon != "object")
+      throw Components.Exception("aAddon must be specified",
+                                 Cr.NS_ERROR_INVALID_ARG);
+
+    if (!("applyBackgroundUpdates" in aAddon))
+      return false;
+    if (aAddon.applyBackgroundUpdates == AddonManager.AUTOUPDATE_ENABLE)
+      return true;
+    if (aAddon.applyBackgroundUpdates == AddonManager.AUTOUPDATE_DISABLE)
+      return false;
+    return this.autoUpdateDefault;
+  },
+
+  get checkCompatibility() {
+    return AddonManagerInternal.checkCompatibility;
+  },
+
+  set checkCompatibility(aValue) {
+    AddonManagerInternal.checkCompatibility = aValue;
+  },
+
+  get strictCompatibility() {
+    return AddonManagerInternal.strictCompatibility;
+  },
+
+  set strictCompatibility(aValue) {
+    AddonManagerInternal.strictCompatibility = aValue;
+  },
+
+  get checkUpdateSecurityDefault() {
+    return AddonManagerInternal.checkUpdateSecurityDefault;
+  },
+
+  get checkUpdateSecurity() {
+    return AddonManagerInternal.checkUpdateSecurity;
+  },
+
+  set checkUpdateSecurity(aValue) {
+    AddonManagerInternal.checkUpdateSecurity = aValue;
+  },
+
+  get updateEnabled() {
+    return AddonManagerInternal.updateEnabled;
+  },
+
+  set updateEnabled(aValue) {
+    AddonManagerInternal.updateEnabled = aValue;
+  },
+
+  get autoUpdateDefault() {
+    return AddonManagerInternal.autoUpdateDefault;
+  },
+
+  set autoUpdateDefault(aValue) {
+    AddonManagerInternal.autoUpdateDefault = aValue;
+  },
+
+  get hotfixID() {
+    return AddonManagerInternal.hotfixID;
+  },
+
+  escapeAddonURI: function(aAddon, aUri, aAppVersion) {
+    return AddonManagerInternal.escapeAddonURI(aAddon, aUri, aAppVersion);
+  },
+
+  getPreferredIconURL: function(aAddon, aSize, aWindow = undefined) {
+    return AddonManagerInternal.getPreferredIconURL(aAddon, aSize, aWindow);
+  },
+
+  get webAPI() {
+    return AddonManagerInternal.webAPI;
+  },
+
+  get shutdown() {
+    return gShutdownBarrier.client;
+  },
+};
+
+this.AddonManager.init();
+
+// load the timestamps module into AddonManagerInternal
+Cu.import("resource://gre/modules/TelemetryTimestamps.jsm", AddonManagerInternal);
+Object.freeze(AddonManagerInternal);
+Object.freeze(AddonManagerPrivate);
+Object.freeze(AddonManager);
diff --git a/toolkit/mozapps/webextensions/AddonManagerWebAPI.cpp b/toolkit/mozapps/webextensions/AddonManagerWebAPI.cpp
new file mode 100644
index 000000000..3f2a7a529
--- /dev/null
+++ b/toolkit/mozapps/webextensions/AddonManagerWebAPI.cpp
@@ -0,0 +1,171 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "AddonManagerWebAPI.h"
+
+#include "mozilla/dom/Navigator.h"
+#include "mozilla/dom/NavigatorBinding.h"
+
+#include "mozilla/Preferences.h"
+#include "nsGlobalWindow.h"
+
+#include "nsIDocShell.h"
+#include "nsIScriptObjectPrincipal.h"
+
+namespace mozilla {
+using namespace mozilla::dom;
+
+static bool
+IsValidHost(const nsACString& host) {
+  // This is ugly, but Preferences.h doesn't have support
+  // for default prefs or locked prefs
+  nsCOMPtr<nsIPrefService> prefService (do_GetService(NS_PREFSERVICE_CONTRACTID));
+  nsCOMPtr<nsIPrefBranch> prefs;
+  if (prefService) {
+    prefService->GetDefaultBranch(nullptr, getter_AddRefs(prefs));
+    bool isEnabled;
+    if (NS_SUCCEEDED(prefs->GetBoolPref("xpinstall.enabled", &isEnabled)) && !isEnabled) {
+      bool isLocked;
+      prefs->PrefIsLocked("xpinstall.enabled", &isLocked);
+      if (isLocked) {
+        return false;
+      }
+    }
+  }
+
+  if (host.Equals("addons.mozilla.org") ||
+      host.Equals("discovery.addons.mozilla.org") ||
+      host.Equals("testpilot.firefox.com")) {
+    return true;
+  }
+
+  // When testing allow access to the developer sites.
+  if (Preferences::GetBool("extensions.webapi.testing", false)) {
+    if (host.LowerCaseEqualsLiteral("addons.allizom.org") ||
+        host.LowerCaseEqualsLiteral("discovery.addons.allizom.org") ||
+        host.LowerCaseEqualsLiteral("addons-dev.allizom.org") ||
+        host.LowerCaseEqualsLiteral("discovery.addons-dev.allizom.org") ||
+        host.LowerCaseEqualsLiteral("testpilot.stage.mozaws.net") ||
+        host.LowerCaseEqualsLiteral("testpilot.dev.mozaws.net") ||
+        host.LowerCaseEqualsLiteral("example.com")) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+// Checks if the given uri is secure and matches one of the hosts allowed to
+// access the API.
+bool
+AddonManagerWebAPI::IsValidSite(nsIURI* uri)
+{
+  if (!uri) {
+    return false;
+  }
+
+  bool isSecure;
+  nsresult rv = uri->SchemeIs("https", &isSecure);
+  if (NS_FAILED(rv) || !isSecure) {
+    return false;
+  }
+
+  nsAutoCString host;
+  rv = uri->GetHost(host);
+  if (NS_FAILED(rv)) {
+    return false;
+  }
+
+  return IsValidHost(host);
+}
+
+bool
+AddonManagerWebAPI::IsAPIEnabled(JSContext* cx, JSObject* obj)
+{
+  nsGlobalWindow* global = xpc::WindowGlobalOrNull(obj);
+  if (!global) {
+    return false;
+  }
+
+  nsCOMPtr<nsPIDOMWindowInner> win = global->AsInner();
+  if (!win) {
+    return false;
+  }
+
+  // Check that the current window and all parent frames are allowed access to
+  // the API.
+  while (win) {
+    nsCOMPtr<nsIScriptObjectPrincipal> sop = do_QueryInterface(win);
+    if (!sop) {
+      return false;
+    }
+
+    nsCOMPtr<nsIPrincipal> principal = sop->GetPrincipal();
+    if (!principal) {
+      return false;
+    }
+
+    // Reaching a window with a system principal means we have reached
+    // privileged UI of some kind so stop at this point and allow access.
+    if (principal->GetIsSystemPrincipal()) {
+      return true;
+    }
+
+    nsCOMPtr<nsIDocShell> docShell = win->GetDocShell();
+    if (!docShell) {
+      // This window has been torn down so don't allow access to the API.
+      return false;
+    }
+
+    if (!IsValidSite(win->GetDocumentURI())) {
+      return false;
+    }
+
+    // Checks whether there is a parent frame of the same type. This won't cross
+    // mozbrowser or chrome boundaries.
+    nsCOMPtr<nsIDocShellTreeItem> parent;
+    nsresult rv = docShell->GetSameTypeParent(getter_AddRefs(parent));
+    if (NS_FAILED(rv)) {
+      return false;
+    }
+
+    if (!parent) {
+      // No parent means we've hit a mozbrowser or chrome boundary so allow
+      // access to the API.
+      return true;
+    }
+
+    nsIDocument* doc = win->GetDoc();
+    if (!doc) {
+      return false;
+    }
+
+    doc = doc->GetParentDocument();
+    if (!doc) {
+      // Getting here means something has been torn down so fail safe.
+      return false;
+    }
+
+
+    win = doc->GetInnerWindow();
+  }
+
+  // Found a document with no inner window, don't grant access to the API.
+  return false;
+}
+
+namespace dom {
+
+bool
+AddonManagerPermissions::IsHostPermitted(const GlobalObject& /*unused*/, const nsAString& host)
+{
+  return IsValidHost(NS_ConvertUTF16toUTF8(host));
+}
+
+} // namespace mozilla::dom
+
+
+} // namespace mozilla
diff --git a/toolkit/mozapps/webextensions/AddonManagerWebAPI.h b/toolkit/mozapps/webextensions/AddonManagerWebAPI.h
new file mode 100644
index 000000000..6830bc91f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/AddonManagerWebAPI.h
@@ -0,0 +1,33 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef addonmanagerwebapi_h_
+#define addonmanagerwebapi_h_
+
+#include "nsPIDOMWindow.h"
+
+namespace mozilla {
+
+class AddonManagerWebAPI {
+public:
+  static bool IsAPIEnabled(JSContext* cx, JSObject* obj);
+
+private:
+  static bool IsValidSite(nsIURI* uri);
+};
+
+namespace dom {
+
+class AddonManagerPermissions {
+public:
+  static bool IsHostPermitted(const GlobalObject&, const nsAString& host);
+};
+
+} // namespace mozilla::dom
+
+} // namespace mozilla
+
+#endif // addonmanagerwebapi_h_
diff --git a/toolkit/mozapps/webextensions/AddonPathService.cpp b/toolkit/mozapps/webextensions/AddonPathService.cpp
new file mode 100644
index 000000000..8a405c0ea
--- /dev/null
+++ b/toolkit/mozapps/webextensions/AddonPathService.cpp
@@ -0,0 +1,258 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "AddonPathService.h"
+
+#include "amIAddonManager.h"
+#include "nsIURI.h"
+#include "nsXULAppAPI.h"
+#include "jsapi.h"
+#include "nsServiceManagerUtils.h"
+#include "nsLiteralString.h"
+#include "nsThreadUtils.h"
+#include "nsIIOService.h"
+#include "nsNetUtil.h"
+#include "nsIAddonPolicyService.h"
+#include "nsIFileURL.h"
+#include "nsIResProtocolHandler.h"
+#include "nsIChromeRegistry.h"
+#include "nsIJARURI.h"
+#include "nsJSUtils.h"
+#include "mozilla/dom/ScriptSettings.h"
+#include "mozilla/dom/ToJSValue.h"
+#include "mozilla/AddonPathService.h"
+#include "mozilla/Omnijar.h"
+
+#include <algorithm>
+
+namespace mozilla {
+
+struct PathEntryComparator
+{
+  typedef AddonPathService::PathEntry PathEntry;
+
+  bool Equals(const PathEntry& entry1, const PathEntry& entry2) const
+  {
+    return entry1.mPath == entry2.mPath;
+  }
+
+  bool LessThan(const PathEntry& entry1, const PathEntry& entry2) const
+  {
+    return entry1.mPath < entry2.mPath;
+  }
+};
+
+AddonPathService::AddonPathService()
+{
+}
+
+AddonPathService::~AddonPathService()
+{
+  sInstance = nullptr;
+}
+
+NS_IMPL_ISUPPORTS(AddonPathService, amIAddonPathService)
+
+AddonPathService *AddonPathService::sInstance;
+
+/* static */ AddonPathService*
+AddonPathService::GetInstance()
+{
+  if (!sInstance) {
+    sInstance = new AddonPathService();
+  }
+  NS_ADDREF(sInstance);
+  return sInstance;
+}
+
+static JSAddonId*
+ConvertAddonId(const nsAString& addonIdString)
+{
+  AutoSafeJSContext cx;
+  JS::RootedValue strv(cx);
+  if (!mozilla::dom::ToJSValue(cx, addonIdString, &strv)) {
+    return nullptr;
+  }
+  JS::RootedString str(cx, strv.toString());
+  return JS::NewAddonId(cx, str);
+}
+
+JSAddonId*
+AddonPathService::Find(const nsAString& path)
+{
+  // Use binary search to find the nearest entry that is <= |path|.
+  PathEntryComparator comparator;
+  unsigned index = mPaths.IndexOfFirstElementGt(PathEntry(path, nullptr), comparator);
+  if (index == 0) {
+    return nullptr;
+  }
+  const PathEntry& entry = mPaths[index - 1];
+
+  // Return the entry's addon if its path is a prefix of |path|.
+  if (StringBeginsWith(path, entry.mPath)) {
+    return entry.mAddonId;
+  }
+  return nullptr;
+}
+
+NS_IMETHODIMP
+AddonPathService::FindAddonId(const nsAString& path, nsAString& addonIdString)
+{
+  if (JSAddonId* id = Find(path)) {
+    JSFlatString* flat = JS_ASSERT_STRING_IS_FLAT(JS::StringOfAddonId(id));
+    AssignJSFlatString(addonIdString, flat);
+  }
+  return NS_OK;
+}
+
+/* static */ JSAddonId*
+AddonPathService::FindAddonId(const nsAString& path)
+{
+  // If no service has been created, then we're not going to find anything.
+  if (!sInstance) {
+    return nullptr;
+  }
+
+  return sInstance->Find(path);
+}
+
+NS_IMETHODIMP
+AddonPathService::InsertPath(const nsAString& path, const nsAString& addonIdString)
+{
+  JSAddonId* addonId = ConvertAddonId(addonIdString);
+
+  // Add the new path in sorted order.
+  PathEntryComparator comparator;
+  mPaths.InsertElementSorted(PathEntry(path, addonId), comparator);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+AddonPathService::MapURIToAddonId(nsIURI* aURI, nsAString& addonIdString)
+{
+  if (JSAddonId* id = MapURIToAddonID(aURI)) {
+    JSFlatString* flat = JS_ASSERT_STRING_IS_FLAT(JS::StringOfAddonId(id));
+    AssignJSFlatString(addonIdString, flat);
+  }
+  return NS_OK;
+}
+
+static nsresult
+ResolveURI(nsIURI* aURI, nsAString& out)
+{
+  bool equals;
+  nsresult rv;
+  nsCOMPtr<nsIURI> uri;
+  nsAutoCString spec;
+
+  // Resolve resource:// URIs. At the end of this if/else block, we
+  // have both spec and uri variables identifying the same URI.
+  if (NS_SUCCEEDED(aURI->SchemeIs("resource", &equals)) && equals) {
+    nsCOMPtr<nsIIOService> ioService = do_GetIOService(&rv);
+    if (NS_WARN_IF(NS_FAILED(rv)))
+      return rv;
+
+    nsCOMPtr<nsIProtocolHandler> ph;
+    rv = ioService->GetProtocolHandler("resource", getter_AddRefs(ph));
+    if (NS_WARN_IF(NS_FAILED(rv)))
+      return rv;
+
+    nsCOMPtr<nsIResProtocolHandler> irph(do_QueryInterface(ph, &rv));
+    if (NS_WARN_IF(NS_FAILED(rv)))
+      return rv;
+
+    rv = irph->ResolveURI(aURI, spec);
+    if (NS_WARN_IF(NS_FAILED(rv)))
+      return rv;
+
+    rv = ioService->NewURI(spec, nullptr, nullptr, getter_AddRefs(uri));
+    if (NS_WARN_IF(NS_FAILED(rv)))
+      return rv;
+  } else if (NS_SUCCEEDED(aURI->SchemeIs("chrome", &equals)) && equals) {
+    nsCOMPtr<nsIChromeRegistry> chromeReg =
+      mozilla::services::GetChromeRegistryService();
+    if (NS_WARN_IF(!chromeReg))
+      return NS_ERROR_UNEXPECTED;
+
+    rv = chromeReg->ConvertChromeURL(aURI, getter_AddRefs(uri));
+    if (NS_WARN_IF(NS_FAILED(rv)))
+      return rv;
+  } else {
+    uri = aURI;
+  }
+
+  if (NS_SUCCEEDED(uri->SchemeIs("jar", &equals)) && equals) {
+    nsCOMPtr<nsIJARURI> jarURI = do_QueryInterface(uri, &rv);
+    if (NS_WARN_IF(NS_FAILED(rv)))
+      return rv;
+
+    nsCOMPtr<nsIURI> jarFileURI;
+    rv = jarURI->GetJARFile(getter_AddRefs(jarFileURI));
+    if (NS_WARN_IF(NS_FAILED(rv)))
+      return rv;
+
+    return ResolveURI(jarFileURI, out);
+  }
+
+  if (NS_SUCCEEDED(uri->SchemeIs("file", &equals)) && equals) {
+    nsCOMPtr<nsIFileURL> baseFileURL = do_QueryInterface(uri, &rv);
+    if (NS_WARN_IF(NS_FAILED(rv)))
+      return rv;
+
+    nsCOMPtr<nsIFile> file;
+    rv = baseFileURL->GetFile(getter_AddRefs(file));
+    if (NS_WARN_IF(NS_FAILED(rv)))
+      return rv;
+
+    return file->GetPath(out);
+  }
+  return NS_ERROR_FAILURE;
+}
+
+JSAddonId*
+MapURIToAddonID(nsIURI* aURI)
+{
+  if (!NS_IsMainThread() || !XRE_IsParentProcess()) {
+    return nullptr;
+  }
+
+  bool equals;
+  nsresult rv;
+  if (NS_SUCCEEDED(aURI->SchemeIs("moz-extension", &equals)) && equals) {
+    nsCOMPtr<nsIAddonPolicyService> service = do_GetService("@mozilla.org/addons/policy-service;1");
+    if (service) {
+      nsString addonId;
+      rv = service->ExtensionURIToAddonId(aURI, addonId);
+      if (NS_FAILED(rv))
+        return nullptr;
+
+      return ConvertAddonId(addonId);
+    }
+  }
+
+  nsAutoString filePath;
+  rv = ResolveURI(aURI, filePath);
+  if (NS_FAILED(rv))
+    return nullptr;
+
+  nsCOMPtr<nsIFile> greJar = Omnijar::GetPath(Omnijar::GRE);
+  nsCOMPtr<nsIFile> appJar = Omnijar::GetPath(Omnijar::APP);
+  if (greJar && appJar) {
+    nsAutoString greJarString, appJarString;
+    if (NS_FAILED(greJar->GetPath(greJarString)) || NS_FAILED(appJar->GetPath(appJarString)))
+      return nullptr;
+
+    // If |aURI| is part of either Omnijar, then it can't be part of an
+    // add-on. This catches pretty much all URLs for Firefox content.
+    if (filePath.Equals(greJarString) || filePath.Equals(appJarString))
+      return nullptr;
+  }
+
+  // If it's not part of Firefox, we resort to binary searching through the
+  // add-on paths.
+  return AddonPathService::FindAddonId(filePath);
+}
+
+} // namespace mozilla
diff --git a/toolkit/mozapps/webextensions/AddonPathService.h b/toolkit/mozapps/webextensions/AddonPathService.h
new file mode 100644
index 000000000..f739b018f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/AddonPathService.h
@@ -0,0 +1,55 @@
+//* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-/
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef AddonPathService_h
+#define AddonPathService_h
+
+#include "amIAddonPathService.h"
+#include "nsString.h"
+#include "nsTArray.h"
+
+class nsIURI;
+class JSAddonId;
+
+namespace mozilla {
+
+JSAddonId*
+MapURIToAddonID(nsIURI* aURI);
+
+class AddonPathService final : public amIAddonPathService
+{
+public:
+  AddonPathService();
+
+  static AddonPathService* GetInstance();
+
+  JSAddonId* Find(const nsAString& path);
+  static JSAddonId* FindAddonId(const nsAString& path);
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_AMIADDONPATHSERVICE
+
+  struct PathEntry
+  {
+    nsString mPath;
+    JSAddonId* mAddonId;
+
+    PathEntry(const nsAString& aPath, JSAddonId* aAddonId)
+     : mPath(aPath), mAddonId(aAddonId)
+    {}
+  };
+
+private:
+  virtual ~AddonPathService();
+
+  // Paths are stored sorted in order of their mPath.
+  nsTArray<PathEntry> mPaths;
+
+  static AddonPathService* sInstance;
+};
+
+} // namespace mozilla
+
+#endif
diff --git a/toolkit/mozapps/webextensions/ChromeManifestParser.jsm b/toolkit/mozapps/webextensions/ChromeManifestParser.jsm
new file mode 100644
index 000000000..63f1db785
--- /dev/null
+++ b/toolkit/mozapps/webextensions/ChromeManifestParser.jsm
@@ -0,0 +1,157 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = ["ChromeManifestParser"];
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+const Cu = Components.utils;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/NetUtil.jsm");
+
+const MSG_JAR_FLUSH = "AddonJarFlush";
+
+
+/**
+ * Sends local and remote notifications to flush a JAR file cache entry
+ *
+ * @param aJarFile
+ *        The ZIP/XPI/JAR file as a nsIFile
+ */
+function flushJarCache(aJarFile) {
+  Services.obs.notifyObservers(aJarFile, "flush-cache-entry", null);
+  Cc["@mozilla.org/globalmessagemanager;1"].getService(Ci.nsIMessageBroadcaster)
+    .broadcastAsyncMessage(MSG_JAR_FLUSH, aJarFile.path);
+}
+
+
+/**
+ * Parses chrome manifest files.
+ */
+this.ChromeManifestParser = {
+
+  /**
+   * Reads and parses a chrome manifest file located at a specified URI, and all
+   * secondary manifests it references.
+   *
+   * @param  aURI
+   *         A nsIURI pointing to a chrome manifest.
+   *         Typically a file: or jar: URI.
+   * @return Array of objects describing each manifest instruction, in the form:
+   *         { type: instruction-type, baseURI: string-uri, args: [arguments] }
+   **/
+  parseSync: function(aURI) {
+    function parseLine(aLine) {
+      let line = aLine.trim();
+      if (line.length == 0 || line.charAt(0) == '#')
+        return;
+      let tokens = line.split(/\s+/);
+      let type = tokens.shift();
+      if (type == "manifest") {
+        let uri = NetUtil.newURI(tokens.shift(), null, aURI);
+        data = data.concat(this.parseSync(uri));
+      } else {
+        data.push({type: type, baseURI: baseURI, args: tokens});
+      }
+    }
+
+    let contents = "";
+    try {
+      if (aURI.scheme == "jar")
+        contents = this._readFromJar(aURI);
+      else
+        contents = this._readFromFile(aURI);
+    } catch (e) {
+      // Silently fail.
+    }
+
+    if (!contents)
+      return [];
+
+    let baseURI = NetUtil.newURI(".", null, aURI).spec;
+
+    let data = [];
+    let lines = contents.split("\n");
+    lines.forEach(parseLine.bind(this));
+    return data;
+  },
+
+  _readFromJar: function(aURI) {
+    let data = "";
+    let entries = [];
+    let readers = [];
+
+    try {
+      // Deconstrict URI, which can be nested jar: URIs.
+      let uri = aURI.clone();
+      while (uri instanceof Ci.nsIJARURI) {
+        entries.push(uri.JAREntry);
+        uri = uri.JARFile;
+      }
+
+      // Open the base jar.
+      let reader = Cc["@mozilla.org/libjar/zip-reader;1"].
+                   createInstance(Ci.nsIZipReader);
+      reader.open(uri.QueryInterface(Ci.nsIFileURL).file);
+      readers.push(reader);
+
+      // Open the nested jars.
+      for (let i = entries.length - 1; i > 0; i--) {
+        let innerReader = Cc["@mozilla.org/libjar/zip-reader;1"].
+                          createInstance(Ci.nsIZipReader);
+        innerReader.openInner(reader, entries[i]);
+        readers.push(innerReader);
+        reader = innerReader;
+      }
+
+      // First entry is the actual file we want to read.
+      let zis = reader.getInputStream(entries[0]);
+      data = NetUtil.readInputStreamToString(zis, zis.available());
+    }
+    finally {
+      // Close readers in reverse order.
+      for (let i = readers.length - 1; i >= 0; i--) {
+        readers[i].close();
+        flushJarCache(readers[i].file);
+      }
+    }
+
+    return data;
+  },
+
+  _readFromFile: function(aURI) {
+    let file = aURI.QueryInterface(Ci.nsIFileURL).file;
+    if (!file.exists() || !file.isFile())
+      return "";
+
+    let data = "";
+    let fis = Cc["@mozilla.org/network/file-input-stream;1"].
+              createInstance(Ci.nsIFileInputStream);
+    try {
+      fis.init(file, -1, -1, false);
+      data = NetUtil.readInputStreamToString(fis, fis.available());
+    } finally {
+      fis.close();
+    }
+    return data;
+  },
+
+  /**
+  * Detects if there were any instructions of a specified type in a given
+  * chrome manifest.
+  *
+  * @param  aManifest
+  *         Manifest data, as returned by ChromeManifestParser.parseSync().
+  * @param  aType
+  *         Instruction type to filter by.
+  * @return True if any matching instructions were found in the manifest.
+  */
+  hasType: function(aManifest, aType) {
+    return aManifest.some(entry => entry.type == aType);
+  }
+};
diff --git a/toolkit/mozapps/webextensions/DeferredSave.jsm b/toolkit/mozapps/webextensions/DeferredSave.jsm
new file mode 100644
index 000000000..89f82b265
--- /dev/null
+++ b/toolkit/mozapps/webextensions/DeferredSave.jsm
@@ -0,0 +1,275 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cu = Components.utils;
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+
+Cu.import("resource://gre/modules/osfile.jsm");
+/* globals OS*/
+Cu.import("resource://gre/modules/Promise.jsm");
+
+// Make it possible to mock out timers for testing
+var MakeTimer = () => Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+
+this.EXPORTED_SYMBOLS = ["DeferredSave"];
+
+// If delay parameter is not provided, default is 50 milliseconds.
+const DEFAULT_SAVE_DELAY_MS = 50;
+
+Cu.import("resource://gre/modules/Log.jsm");
+// Configure a logger at the parent 'DeferredSave' level to format
+// messages for all the modules under DeferredSave.*
+const DEFERREDSAVE_PARENT_LOGGER_ID = "DeferredSave";
+var parentLogger = Log.repository.getLogger(DEFERREDSAVE_PARENT_LOGGER_ID);
+parentLogger.level = Log.Level.Warn;
+var formatter = new Log.BasicFormatter();
+// Set parent logger (and its children) to append to
+// the Javascript section of the Browser Console
+parentLogger.addAppender(new Log.ConsoleAppender(formatter));
+// Set parent logger (and its children) to
+// also append to standard out
+parentLogger.addAppender(new Log.DumpAppender(formatter));
+
+// Provide the ability to enable/disable logging
+// messages at runtime.
+// If the "extensions.logging.enabled" preference is
+// missing or 'false', messages at the WARNING and higher
+// severity should be logged to the JS console and standard error.
+// If "extensions.logging.enabled" is set to 'true', messages
+// at DEBUG and higher should go to JS console and standard error.
+Cu.import("resource://gre/modules/Services.jsm");
+
+const PREF_LOGGING_ENABLED = "extensions.logging.enabled";
+const NS_PREFBRANCH_PREFCHANGE_TOPIC_ID = "nsPref:changed";
+
+/**
+* Preference listener which listens for a change in the
+* "extensions.logging.enabled" preference and changes the logging level of the
+* parent 'addons' level logger accordingly.
+*/
+var PrefObserver = {
+ init: function() {
+   Services.prefs.addObserver(PREF_LOGGING_ENABLED, this, false);
+   Services.obs.addObserver(this, "xpcom-shutdown", false);
+   this.observe(null, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID, PREF_LOGGING_ENABLED);
+ },
+
+ observe: function(aSubject, aTopic, aData) {
+   if (aTopic == "xpcom-shutdown") {
+     Services.prefs.removeObserver(PREF_LOGGING_ENABLED, this);
+     Services.obs.removeObserver(this, "xpcom-shutdown");
+   }
+   else if (aTopic == NS_PREFBRANCH_PREFCHANGE_TOPIC_ID) {
+     let debugLogEnabled = false;
+     try {
+       debugLogEnabled = Services.prefs.getBoolPref(PREF_LOGGING_ENABLED);
+     }
+     catch (e) {
+     }
+     if (debugLogEnabled) {
+       parentLogger.level = Log.Level.Debug;
+     }
+     else {
+       parentLogger.level = Log.Level.Warn;
+     }
+   }
+ }
+};
+
+PrefObserver.init();
+
+/**
+ * A module to manage deferred, asynchronous writing of data files
+ * to disk. Writing is deferred by waiting for a specified delay after
+ * a request to save the data, before beginning to write. If more than
+ * one save request is received during the delay, all requests are
+ * fulfilled by a single write.
+ *
+ * @constructor
+ * @param aPath
+ *        String representing the full path of the file where the data
+ *        is to be written.
+ * @param aDataProvider
+ *        Callback function that takes no argument and returns the data to
+ *        be written. If aDataProvider returns an ArrayBufferView, the
+ *        bytes it contains are written to the file as is.
+ *        If aDataProvider returns a String the data are UTF-8 encoded
+ *        and then written to the file.
+ * @param [optional] aDelay
+ *        The delay in milliseconds between the first saveChanges() call
+ *        that marks the data as needing to be saved, and when the DeferredSave
+ *        begins writing the data to disk. Default 50 milliseconds.
+ */
+this.DeferredSave = function(aPath, aDataProvider, aDelay) {
+  // Create a new logger (child of 'DeferredSave' logger)
+  // for use by this particular instance of DeferredSave object
+  let leafName = OS.Path.basename(aPath);
+  let logger_id = DEFERREDSAVE_PARENT_LOGGER_ID + "." + leafName;
+  this.logger = Log.repository.getLogger(logger_id);
+
+  // @type {Deferred|null}, null when no data needs to be written
+  // @resolves with the result of OS.File.writeAtomic when all writes complete
+  // @rejects with the error from OS.File.writeAtomic if the write fails,
+  //          or with the error from aDataProvider() if that throws.
+  this._pending = null;
+
+  // @type {Promise}, completes when the in-progress write (if any) completes,
+  //       kept as a resolved promise at other times to simplify logic.
+  //       Because _deferredSave() always uses _writing.then() to execute
+  //       its next action, we don't need a special case for whether a write
+  //       is in progress - if the previous write is complete (and the _writing
+  //       promise is already resolved/rejected), _writing.then() starts
+  //       the next action immediately.
+  //
+  // @resolves with the result of OS.File.writeAtomic
+  // @rejects with the error from OS.File.writeAtomic
+  this._writing = Promise.resolve(0);
+
+  // Are we currently waiting for a write to complete
+  this.writeInProgress = false;
+
+  this._path = aPath;
+  this._dataProvider = aDataProvider;
+
+  this._timer = null;
+
+  // Some counters for telemetry
+  // The total number of times the file was written
+  this.totalSaves = 0;
+
+  // The number of times the data became dirty while
+  // another save was in progress
+  this.overlappedSaves = 0;
+
+  // Error returned by the most recent write (if any)
+  this._lastError = null;
+
+  if (aDelay && (aDelay > 0))
+    this._delay = aDelay;
+  else
+    this._delay = DEFAULT_SAVE_DELAY_MS;
+}
+
+this.DeferredSave.prototype = {
+  get dirty() {
+    return this._pending || this.writeInProgress;
+  },
+
+  get lastError() {
+    return this._lastError;
+  },
+
+  // Start the pending timer if data is dirty
+  _startTimer: function() {
+    if (!this._pending) {
+      return;
+    }
+
+      this.logger.debug("Starting timer");
+    if (!this._timer)
+      this._timer = MakeTimer();
+    this._timer.initWithCallback(() => this._deferredSave(),
+                                 this._delay, Ci.nsITimer.TYPE_ONE_SHOT);
+  },
+
+  /**
+   * Mark the current stored data dirty, and schedule a flush to disk
+   * @return A Promise<integer> that will be resolved after the data is written to disk;
+   *         the promise is resolved with the number of bytes written.
+   */
+  saveChanges: function() {
+      this.logger.debug("Save changes");
+    if (!this._pending) {
+      if (this.writeInProgress) {
+          this.logger.debug("Data changed while write in progress");
+        this.overlappedSaves++;
+      }
+      this._pending = Promise.defer();
+      // Wait until the most recent write completes or fails (if it hasn't already)
+      // and then restart our timer
+      this._writing.then(count => this._startTimer(), error => this._startTimer());
+    }
+    return this._pending.promise;
+  },
+
+  _deferredSave: function() {
+    let pending = this._pending;
+    this._pending = null;
+    let writing = this._writing;
+    this._writing = pending.promise;
+
+    // In either the success or the exception handling case, we don't need to handle
+    // the error from _writing here; it's already being handled in another then()
+    let toSave = null;
+    try {
+      toSave = this._dataProvider();
+    }
+    catch (e) {
+        this.logger.error("Deferred save dataProvider failed", e);
+      writing.then(null, error => {})
+        .then(count => {
+          pending.reject(e);
+        });
+      return;
+    }
+
+    writing.then(null, error => { return 0; })
+    .then(count => {
+        this.logger.debug("Starting write");
+      this.totalSaves++;
+      this.writeInProgress = true;
+
+      OS.File.writeAtomic(this._path, toSave, {tmpPath: this._path + ".tmp"})
+      .then(
+        result => {
+          this._lastError = null;
+          this.writeInProgress = false;
+              this.logger.debug("Write succeeded");
+          pending.resolve(result);
+        },
+        error => {
+          this._lastError = error;
+          this.writeInProgress = false;
+              this.logger.warn("Write failed", error);
+          pending.reject(error);
+        });
+    });
+  },
+
+  /**
+   * Immediately save the dirty data to disk, skipping
+   * the delay of normal operation. Note that the write
+   * still happens asynchronously in the worker
+   * thread from OS.File.
+   *
+   * There are four possible situations:
+   * 1) Nothing to flush
+   * 2) Data is not currently being written, in-memory copy is dirty
+   * 3) Data is currently being written, in-memory copy is clean
+   * 4) Data is being written and in-memory copy is dirty
+   *
+   * @return Promise<integer> that will resolve when all in-memory data
+   *         has finished being flushed, returning the number of bytes
+   *         written. If all in-memory data is clean, completes with the
+   *         result of the most recent write.
+   */
+  flush: function() {
+    // If we have pending changes, cancel our timer and set up the write
+    // immediately (_deferredSave queues the write for after the most
+    // recent write completes, if it hasn't already)
+    if (this._pending) {
+        this.logger.debug("Flush called while data is dirty");
+      if (this._timer) {
+        this._timer.cancel();
+        this._timer = null;
+      }
+      this._deferredSave();
+    }
+
+    return this._writing;
+  }
+};
diff --git a/toolkit/mozapps/webextensions/LightweightThemeManager.jsm b/toolkit/mozapps/webextensions/LightweightThemeManager.jsm
new file mode 100644
index 000000000..5dd41831d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/LightweightThemeManager.jsm
@@ -0,0 +1,909 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = ["LightweightThemeManager"];
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Components.utils.import("resource://gre/modules/AddonManager.jsm");
+/* globals AddonManagerPrivate*/
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const ID_SUFFIX              = "@personas.mozilla.org";
+const PREF_LWTHEME_TO_SELECT = "extensions.lwThemeToSelect";
+const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
+const PREF_EM_DSS_ENABLED    = "extensions.dss.enabled";
+const ADDON_TYPE             = "theme";
+
+const URI_EXTENSION_STRINGS  = "chrome://mozapps/locale/extensions/extensions.properties";
+
+const STRING_TYPE_NAME       = "type.%ID%.name";
+
+const DEFAULT_MAX_USED_THEMES_COUNT = 30;
+
+const MAX_PREVIEW_SECONDS = 30;
+
+const MANDATORY = ["id", "name", "headerURL"];
+const OPTIONAL = ["footerURL", "textcolor", "accentcolor", "iconURL",
+                  "previewURL", "author", "description", "homepageURL",
+                  "updateURL", "version"];
+
+const PERSIST_ENABLED = true;
+const PERSIST_BYPASS_CACHE = false;
+const PERSIST_FILES = {
+  headerURL: "lightweighttheme-header",
+  footerURL: "lightweighttheme-footer"
+};
+
+XPCOMUtils.defineLazyModuleGetter(this, "LightweightThemeImageOptimizer",
+  "resource://gre/modules/addons/LightweightThemeImageOptimizer.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ServiceRequest",
+  "resource://gre/modules/ServiceRequest.jsm");
+
+
+XPCOMUtils.defineLazyGetter(this, "_prefs", () => {
+  return Services.prefs.getBranch("lightweightThemes.");
+});
+
+Object.defineProperty(this, "_maxUsedThemes", {
+  get: function() {
+    delete this._maxUsedThemes;
+    try {
+      this._maxUsedThemes = _prefs.getIntPref("maxUsedThemes");
+    }
+    catch (e) {
+      this._maxUsedThemes = DEFAULT_MAX_USED_THEMES_COUNT;
+    }
+    return this._maxUsedThemes;
+  },
+
+  set: function(val) {
+    delete this._maxUsedThemes;
+    return this._maxUsedThemes = val;
+  },
+  configurable: true,
+});
+
+// Holds the ID of the theme being enabled or disabled while sending out the
+// events so cached AddonWrapper instances can return correct values for
+// permissions and pendingOperations
+var _themeIDBeingEnabled = null;
+var _themeIDBeingDisabled = null;
+
+// Convert from the old storage format (in which the order of usedThemes
+// was combined with isThemeSelected to determine which theme was selected)
+// to the new one (where a selectedThemeID determines which theme is selected).
+(function() {
+  let wasThemeSelected = false;
+  try {
+    wasThemeSelected = _prefs.getBoolPref("isThemeSelected");
+  } catch (e) { }
+
+  if (wasThemeSelected) {
+    _prefs.clearUserPref("isThemeSelected");
+    let themes = [];
+    try {
+      themes = JSON.parse(_prefs.getComplexValue("usedThemes",
+                                                 Ci.nsISupportsString).data);
+    } catch (e) { }
+
+    if (Array.isArray(themes) && themes[0]) {
+      _prefs.setCharPref("selectedThemeID", themes[0].id);
+    }
+  }
+})();
+
+this.LightweightThemeManager = {
+  get name() {
+    return "LightweightThemeManager";
+  },
+
+  // Themes that can be added for an application.  They can't be removed, and
+  // will always show up at the top of the list.
+  _builtInThemes: new Map(),
+
+  get usedThemes () {
+    let themes = [];
+    try {
+      themes = JSON.parse(_prefs.getComplexValue("usedThemes",
+                                                 Ci.nsISupportsString).data);
+    } catch (e) { }
+
+    themes.push(...this._builtInThemes.values());
+    return themes;
+  },
+
+  get currentTheme () {
+    let selectedThemeID = null;
+    try {
+      selectedThemeID = _prefs.getCharPref("selectedThemeID");
+    } catch (e) {}
+
+    let data = null;
+    if (selectedThemeID) {
+      data = this.getUsedTheme(selectedThemeID);
+    }
+    return data;
+  },
+
+  get currentThemeForDisplay () {
+    var data = this.currentTheme;
+
+    if (data && PERSIST_ENABLED) {
+      for (let key in PERSIST_FILES) {
+        try {
+          if (data[key] && _prefs.getBoolPref("persisted." + key))
+            data[key] = _getLocalImageURI(PERSIST_FILES[key]).spec
+                        + "?" + data.id + ";" + _version(data);
+        } catch (e) {}
+      }
+    }
+
+    return data;
+  },
+
+  set currentTheme (aData) {
+    return _setCurrentTheme(aData, false);
+  },
+
+  setLocalTheme: function(aData) {
+    _setCurrentTheme(aData, true);
+  },
+
+  getUsedTheme: function(aId) {
+    var usedThemes = this.usedThemes;
+    for (let usedTheme of usedThemes) {
+      if (usedTheme.id == aId)
+        return usedTheme;
+    }
+    return null;
+  },
+
+  forgetUsedTheme: function(aId) {
+    let theme = this.getUsedTheme(aId);
+    if (!theme || LightweightThemeManager._builtInThemes.has(theme.id))
+      return;
+
+    let wrapper = new AddonWrapper(theme);
+    AddonManagerPrivate.callAddonListeners("onUninstalling", wrapper, false);
+
+    var currentTheme = this.currentTheme;
+    if (currentTheme && currentTheme.id == aId) {
+      this.themeChanged(null);
+      AddonManagerPrivate.notifyAddonChanged(null, ADDON_TYPE, false);
+    }
+
+    _updateUsedThemes(_usedThemesExceptId(aId));
+    AddonManagerPrivate.callAddonListeners("onUninstalled", wrapper);
+  },
+
+  addBuiltInTheme: function(theme) {
+    if (!theme || !theme.id || this.usedThemes.some(t => t.id == theme.id)) {
+      throw new Error("Trying to add invalid builtIn theme");
+    }
+
+    this._builtInThemes.set(theme.id, theme);
+
+    if (_prefs.getCharPref("selectedThemeID") == theme.id) {
+      this.currentTheme = theme;
+    }
+  },
+
+  forgetBuiltInTheme: function(id) {
+    if (!this._builtInThemes.has(id)) {
+      let currentTheme = this.currentTheme;
+      if (currentTheme && currentTheme.id == id) {
+        this.currentTheme = null;
+      }
+    }
+    return this._builtInThemes.delete(id);
+  },
+
+  clearBuiltInThemes: function() {
+    for (let id of this._builtInThemes.keys()) {
+      this.forgetBuiltInTheme(id);
+    }
+  },
+
+  previewTheme: function(aData) {
+    let cancel = Cc["@mozilla.org/supports-PRBool;1"].createInstance(Ci.nsISupportsPRBool);
+    cancel.data = false;
+    Services.obs.notifyObservers(cancel, "lightweight-theme-preview-requested",
+                                 JSON.stringify(aData));
+    if (cancel.data)
+      return;
+
+    if (_previewTimer)
+      _previewTimer.cancel();
+    else
+      _previewTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+    _previewTimer.initWithCallback(_previewTimerCallback,
+                                   MAX_PREVIEW_SECONDS * 1000,
+                                   _previewTimer.TYPE_ONE_SHOT);
+
+    _notifyWindows(aData);
+  },
+
+  resetPreview: function() {
+    if (_previewTimer) {
+      _previewTimer.cancel();
+      _previewTimer = null;
+      _notifyWindows(this.currentThemeForDisplay);
+    }
+  },
+
+  parseTheme: function(aString, aBaseURI) {
+    try {
+      return _sanitizeTheme(JSON.parse(aString), aBaseURI, false);
+    } catch (e) {
+      return null;
+    }
+  },
+
+  updateCurrentTheme: function() {
+    try {
+      if (!_prefs.getBoolPref("update.enabled"))
+        return;
+    } catch (e) {
+      return;
+    }
+
+    var theme = this.currentTheme;
+    if (!theme || !theme.updateURL)
+      return;
+
+    var req = new ServiceRequest();
+
+    req.mozBackgroundRequest = true;
+    req.overrideMimeType("text/plain");
+    req.open("GET", theme.updateURL, true);
+    // Prevent the request from reading from the cache.
+    req.channel.loadFlags |= Ci.nsIRequest.LOAD_BYPASS_CACHE;
+    // Prevent the request from writing to the cache.
+    req.channel.loadFlags |= Ci.nsIRequest.INHIBIT_CACHING;
+
+    req.addEventListener("load", () => {
+      if (req.status != 200)
+        return;
+
+      let newData = this.parseTheme(req.responseText, theme.updateURL);
+      if (!newData ||
+          newData.id != theme.id ||
+          _version(newData) == _version(theme))
+        return;
+
+      var currentTheme = this.currentTheme;
+      if (currentTheme && currentTheme.id == theme.id)
+        this.currentTheme = newData;
+    }, false);
+
+    req.send(null);
+  },
+
+  /**
+   * Switches to a new lightweight theme.
+   *
+   * @param  aData
+   *         The lightweight theme to switch to
+   */
+  themeChanged: function(aData) {
+    if (_previewTimer) {
+      _previewTimer.cancel();
+      _previewTimer = null;
+    }
+
+    if (aData) {
+      let usedThemes = _usedThemesExceptId(aData.id);
+      usedThemes.unshift(aData);
+      _updateUsedThemes(usedThemes);
+      if (PERSIST_ENABLED) {
+        LightweightThemeImageOptimizer.purge();
+        _persistImages(aData, function() {
+          _notifyWindows(this.currentThemeForDisplay);
+        }.bind(this));
+      }
+    }
+
+    if (aData)
+      _prefs.setCharPref("selectedThemeID", aData.id);
+    else
+      _prefs.setCharPref("selectedThemeID", "");
+
+    _notifyWindows(aData);
+    Services.obs.notifyObservers(null, "lightweight-theme-changed", null);
+  },
+
+  /**
+   * Starts the Addons provider and enables the new lightweight theme if
+   * necessary.
+   */
+  startup: function() {
+    if (Services.prefs.prefHasUserValue(PREF_LWTHEME_TO_SELECT)) {
+      let id = Services.prefs.getCharPref(PREF_LWTHEME_TO_SELECT);
+      if (id)
+        this.themeChanged(this.getUsedTheme(id));
+      else
+        this.themeChanged(null);
+      Services.prefs.clearUserPref(PREF_LWTHEME_TO_SELECT);
+    }
+
+    _prefs.addObserver("", _prefObserver, false);
+  },
+
+  /**
+   * Shuts down the provider.
+   */
+  shutdown: function() {
+    _prefs.removeObserver("", _prefObserver);
+  },
+
+  /**
+   * Called when a new add-on has been enabled when only one add-on of that type
+   * can be enabled.
+   *
+   * @param  aId
+   *         The ID of the newly enabled add-on
+   * @param  aType
+   *         The type of the newly enabled add-on
+   * @param  aPendingRestart
+   *         true if the newly enabled add-on will only become enabled after a
+   *         restart
+   */
+  addonChanged: function(aId, aType, aPendingRestart) {
+    if (aType != ADDON_TYPE)
+      return;
+
+    let id = _getInternalID(aId);
+    let current = this.currentTheme;
+
+    try {
+      let next = Services.prefs.getCharPref(PREF_LWTHEME_TO_SELECT);
+      if (id == next && aPendingRestart)
+        return;
+
+      Services.prefs.clearUserPref(PREF_LWTHEME_TO_SELECT);
+      if (next) {
+        AddonManagerPrivate.callAddonListeners("onOperationCancelled",
+                                               new AddonWrapper(this.getUsedTheme(next)));
+      }
+      else if (id == current.id) {
+        AddonManagerPrivate.callAddonListeners("onOperationCancelled",
+                                               new AddonWrapper(current));
+        return;
+      }
+    }
+    catch (e) {
+    }
+
+    if (current) {
+      if (current.id == id)
+        return;
+      _themeIDBeingDisabled = current.id;
+      let wrapper = new AddonWrapper(current);
+      if (aPendingRestart) {
+        Services.prefs.setCharPref(PREF_LWTHEME_TO_SELECT, "");
+        AddonManagerPrivate.callAddonListeners("onDisabling", wrapper, true);
+      }
+      else {
+        AddonManagerPrivate.callAddonListeners("onDisabling", wrapper, false);
+        this.themeChanged(null);
+        AddonManagerPrivate.callAddonListeners("onDisabled", wrapper);
+      }
+      _themeIDBeingDisabled = null;
+    }
+
+    if (id) {
+      let theme = this.getUsedTheme(id);
+      _themeIDBeingEnabled = id;
+      let wrapper = new AddonWrapper(theme);
+      if (aPendingRestart) {
+        AddonManagerPrivate.callAddonListeners("onEnabling", wrapper, true);
+        Services.prefs.setCharPref(PREF_LWTHEME_TO_SELECT, id);
+
+        // Flush the preferences to disk so they survive any crash
+        Services.prefs.savePrefFile(null);
+      }
+      else {
+        AddonManagerPrivate.callAddonListeners("onEnabling", wrapper, false);
+        this.themeChanged(theme);
+        AddonManagerPrivate.callAddonListeners("onEnabled", wrapper);
+      }
+      _themeIDBeingEnabled = null;
+    }
+  },
+
+  /**
+   * Called to get an Addon with a particular ID.
+   *
+   * @param  aId
+   *         The ID of the add-on to retrieve
+   * @param  aCallback
+   *         A callback to pass the Addon to
+   */
+  getAddonByID: function(aId, aCallback) {
+    let id = _getInternalID(aId);
+    if (!id) {
+      aCallback(null);
+      return;
+     }
+
+    let theme = this.getUsedTheme(id);
+    if (!theme) {
+      aCallback(null);
+      return;
+    }
+
+    aCallback(new AddonWrapper(theme));
+  },
+
+  /**
+   * Called to get Addons of a particular type.
+   *
+   * @param  aTypes
+   *         An array of types to fetch. Can be null to get all types.
+   * @param  aCallback
+   *         A callback to pass an array of Addons to
+   */
+  getAddonsByTypes: function(aTypes, aCallback) {
+    if (aTypes && aTypes.indexOf(ADDON_TYPE) == -1) {
+      aCallback([]);
+      return;
+    }
+
+    aCallback(this.usedThemes.map(a => new AddonWrapper(a)));
+  },
+};
+
+const wrapperMap = new WeakMap();
+let themeFor = wrapper => wrapperMap.get(wrapper);
+
+/**
+ * The AddonWrapper wraps lightweight theme to provide the data visible to
+ * consumers of the AddonManager API.
+ */
+function AddonWrapper(aTheme) {
+  wrapperMap.set(this, aTheme);
+}
+
+AddonWrapper.prototype = {
+  get id() {
+    return themeFor(this).id + ID_SUFFIX;
+  },
+
+  get type() {
+    return ADDON_TYPE;
+  },
+
+  get isActive() {
+    let current = LightweightThemeManager.currentTheme;
+    if (current)
+      return themeFor(this).id == current.id;
+    return false;
+  },
+
+  get name() {
+    return themeFor(this).name;
+  },
+
+  get version() {
+    let theme = themeFor(this);
+    return "version" in theme ? theme.version : "";
+  },
+
+  get creator() {
+    let theme = themeFor(this);
+    return "author" in theme ? new AddonManagerPrivate.AddonAuthor(theme.author) : null;
+  },
+
+  get screenshots() {
+    let url = themeFor(this).previewURL;
+    return [new AddonManagerPrivate.AddonScreenshot(url)];
+  },
+
+  get pendingOperations() {
+    let pending = AddonManager.PENDING_NONE;
+    if (this.isActive == this.userDisabled)
+      pending |= this.isActive ? AddonManager.PENDING_DISABLE : AddonManager.PENDING_ENABLE;
+    return pending;
+  },
+
+  get operationsRequiringRestart() {
+    // If a non-default theme is in use then a restart will be required to
+    // enable lightweight themes unless dynamic theme switching is enabled
+    if (Services.prefs.prefHasUserValue(PREF_GENERAL_SKINS_SELECTEDSKIN)) {
+      try {
+        if (Services.prefs.getBoolPref(PREF_EM_DSS_ENABLED))
+          return AddonManager.OP_NEEDS_RESTART_NONE;
+      }
+      catch (e) {
+      }
+      return AddonManager.OP_NEEDS_RESTART_ENABLE;
+    }
+
+    return AddonManager.OP_NEEDS_RESTART_NONE;
+  },
+
+  get size() {
+    // The size changes depending on whether the theme is in use or not, this is
+    // probably not worth exposing.
+    return null;
+  },
+
+  get permissions() {
+    let permissions = 0;
+
+    // Do not allow uninstall of builtIn themes.
+    if (!LightweightThemeManager._builtInThemes.has(themeFor(this).id))
+      permissions = AddonManager.PERM_CAN_UNINSTALL;
+    if (this.userDisabled)
+      permissions |= AddonManager.PERM_CAN_ENABLE;
+    else
+      permissions |= AddonManager.PERM_CAN_DISABLE;
+    return permissions;
+  },
+
+  get userDisabled() {
+    let id = themeFor(this).id;
+    if (_themeIDBeingEnabled == id)
+      return false;
+    if (_themeIDBeingDisabled == id)
+      return true;
+
+    try {
+      let toSelect = Services.prefs.getCharPref(PREF_LWTHEME_TO_SELECT);
+      return id != toSelect;
+    }
+    catch (e) {
+      let current = LightweightThemeManager.currentTheme;
+      return !current || current.id != id;
+    }
+  },
+
+  set userDisabled(val) {
+    if (val == this.userDisabled)
+      return val;
+
+    if (val)
+      LightweightThemeManager.currentTheme = null;
+    else
+      LightweightThemeManager.currentTheme = themeFor(this);
+
+    return val;
+  },
+
+  // Lightweight themes are never disabled by the application
+  get appDisabled() {
+    return false;
+  },
+
+  // Lightweight themes are always compatible
+  get isCompatible() {
+    return true;
+  },
+
+  get isPlatformCompatible() {
+    return true;
+  },
+
+  get scope() {
+    return AddonManager.SCOPE_PROFILE;
+  },
+
+  get foreignInstall() {
+    return false;
+  },
+
+  uninstall: function() {
+    LightweightThemeManager.forgetUsedTheme(themeFor(this).id);
+  },
+
+  cancelUninstall: function() {
+    throw new Error("Theme is not marked to be uninstalled");
+  },
+
+  findUpdates: function(listener, reason, appVersion, platformVersion) {
+    AddonManagerPrivate.callNoUpdateListeners(this, listener, reason, appVersion, platformVersion);
+  },
+
+  // Lightweight themes are always compatible
+  isCompatibleWith: function(appVersion, platformVersion) {
+    return true;
+  },
+
+  // Lightweight themes are always securely updated
+  get providesUpdatesSecurely() {
+    return true;
+  },
+
+  // Lightweight themes are never blocklisted
+  get blocklistState() {
+    return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
+  }
+};
+
+["description", "homepageURL", "iconURL"].forEach(function(prop) {
+  Object.defineProperty(AddonWrapper.prototype, prop, {
+    get: function() {
+      let theme = themeFor(this);
+      return prop in theme ? theme[prop] : null;
+    },
+    enumarable: true,
+  });
+});
+
+["installDate", "updateDate"].forEach(function(prop) {
+  Object.defineProperty(AddonWrapper.prototype, prop, {
+    get: function() {
+      let theme = themeFor(this);
+      return prop in theme ? new Date(theme[prop]) : null;
+    },
+    enumarable: true,
+  });
+});
+
+/**
+ * Converts the ID used by the public AddonManager API to an lightweight theme
+ * ID.
+ *
+ * @param   id
+ *          The ID to be converted
+ *
+ * @return  the lightweight theme ID or null if the ID was not for a lightweight
+ *          theme.
+ */
+function _getInternalID(id) {
+  if (!id)
+    return null;
+  let len = id.length - ID_SUFFIX.length;
+  if (len > 0 && id.substring(len) == ID_SUFFIX)
+    return id.substring(0, len);
+  return null;
+}
+
+function _setCurrentTheme(aData, aLocal) {
+  aData = _sanitizeTheme(aData, null, aLocal);
+
+  let needsRestart = (ADDON_TYPE == "theme") &&
+                     Services.prefs.prefHasUserValue(PREF_GENERAL_SKINS_SELECTEDSKIN);
+
+  let cancel = Cc["@mozilla.org/supports-PRBool;1"].createInstance(Ci.nsISupportsPRBool);
+  cancel.data = false;
+  Services.obs.notifyObservers(cancel, "lightweight-theme-change-requested",
+                               JSON.stringify(aData));
+
+  if (aData) {
+    let theme = LightweightThemeManager.getUsedTheme(aData.id);
+    let isInstall = !theme || theme.version != aData.version;
+    if (isInstall) {
+      aData.updateDate = Date.now();
+      if (theme && "installDate" in theme)
+        aData.installDate = theme.installDate;
+      else
+        aData.installDate = aData.updateDate;
+
+      var oldWrapper = theme ? new AddonWrapper(theme) : null;
+      var wrapper = new AddonWrapper(aData);
+      AddonManagerPrivate.callInstallListeners("onExternalInstall", null,
+                                               wrapper, oldWrapper, false);
+      AddonManagerPrivate.callAddonListeners("onInstalling", wrapper, false);
+    }
+
+    let current = LightweightThemeManager.currentTheme;
+    let usedThemes = _usedThemesExceptId(aData.id);
+    if (current && current.id != aData.id)
+      usedThemes.splice(1, 0, aData);
+    else
+      usedThemes.unshift(aData);
+    _updateUsedThemes(usedThemes);
+
+    if (isInstall)
+      AddonManagerPrivate.callAddonListeners("onInstalled", wrapper);
+  }
+
+  if (cancel.data)
+    return null;
+
+  AddonManagerPrivate.notifyAddonChanged(aData ? aData.id + ID_SUFFIX : null,
+                                         ADDON_TYPE, needsRestart);
+
+  return LightweightThemeManager.currentTheme;
+}
+
+function _sanitizeTheme(aData, aBaseURI, aLocal) {
+  if (!aData || typeof aData != "object")
+    return null;
+
+  var resourceProtocols = ["http", "https", "resource"];
+  if (aLocal)
+    resourceProtocols.push("file");
+  var resourceProtocolExp = new RegExp("^(" + resourceProtocols.join("|") + "):");
+
+  function sanitizeProperty(prop) {
+    if (!(prop in aData))
+      return null;
+    if (typeof aData[prop] != "string")
+      return null;
+    let val = aData[prop].trim();
+    if (!val)
+      return null;
+
+    if (!/URL$/.test(prop))
+      return val;
+
+    try {
+      val = _makeURI(val, aBaseURI ? _makeURI(aBaseURI) : null).spec;
+      if ((prop == "updateURL" ? /^https:/ : resourceProtocolExp).test(val))
+        return val;
+      return null;
+    }
+    catch (e) {
+      return null;
+    }
+  }
+
+  let result = {};
+  for (let mandatoryProperty of MANDATORY) {
+    let val = sanitizeProperty(mandatoryProperty);
+    if (!val)
+      throw Components.results.NS_ERROR_INVALID_ARG;
+    result[mandatoryProperty] = val;
+  }
+
+  for (let optionalProperty of OPTIONAL) {
+    let val = sanitizeProperty(optionalProperty);
+    if (!val)
+      continue;
+    result[optionalProperty] = val;
+  }
+
+  return result;
+}
+
+function _usedThemesExceptId(aId) {
+  return LightweightThemeManager.usedThemes.filter(function(t) {
+      return "id" in t && t.id != aId;
+    });
+}
+
+function _version(aThemeData) {
+  return aThemeData.version || "";
+}
+
+function _makeURI(aURL, aBaseURI) {
+  return Services.io.newURI(aURL, null, aBaseURI);
+}
+
+function _updateUsedThemes(aList) {
+  // Remove app-specific themes before saving them to the usedThemes pref.
+  aList = aList.filter(theme => !LightweightThemeManager._builtInThemes.has(theme.id));
+
+  // Send uninstall events for all themes that need to be removed.
+  while (aList.length > _maxUsedThemes) {
+    let wrapper = new AddonWrapper(aList[aList.length - 1]);
+    AddonManagerPrivate.callAddonListeners("onUninstalling", wrapper, false);
+    aList.pop();
+    AddonManagerPrivate.callAddonListeners("onUninstalled", wrapper);
+  }
+
+  var str = Cc["@mozilla.org/supports-string;1"]
+              .createInstance(Ci.nsISupportsString);
+  str.data = JSON.stringify(aList);
+  _prefs.setComplexValue("usedThemes", Ci.nsISupportsString, str);
+
+  Services.obs.notifyObservers(null, "lightweight-theme-list-changed", null);
+}
+
+function _notifyWindows(aThemeData) {
+  Services.obs.notifyObservers(null, "lightweight-theme-styling-update",
+                               JSON.stringify(aThemeData));
+}
+
+var _previewTimer;
+var _previewTimerCallback = {
+  notify: function() {
+    LightweightThemeManager.resetPreview();
+  }
+};
+
+/**
+ * Called when any of the lightweightThemes preferences are changed.
+ */
+function _prefObserver(aSubject, aTopic, aData) {
+  switch (aData) {
+    case "maxUsedThemes":
+      try {
+        _maxUsedThemes = _prefs.getIntPref(aData);
+      }
+      catch (e) {
+        _maxUsedThemes = DEFAULT_MAX_USED_THEMES_COUNT;
+      }
+      // Update the theme list to remove any themes over the number we keep
+      _updateUsedThemes(LightweightThemeManager.usedThemes);
+      break;
+  }
+}
+
+function _persistImages(aData, aCallback) {
+  function onSuccess(key) {
+    return function () {
+      let current = LightweightThemeManager.currentTheme;
+      if (current && current.id == aData.id) {
+        _prefs.setBoolPref("persisted." + key, true);
+      }
+      if (--numFilesToPersist == 0 && aCallback) {
+        aCallback();
+      }
+    };
+  }
+
+  let numFilesToPersist = 0;
+  for (let key in PERSIST_FILES) {
+    _prefs.setBoolPref("persisted." + key, false);
+    if (aData[key]) {
+      numFilesToPersist++;
+      _persistImage(aData[key], PERSIST_FILES[key], onSuccess(key));
+    }
+  }
+}
+
+function _getLocalImageURI(localFileName) {
+  var localFile = Services.dirsvc.get("ProfD", Ci.nsIFile);
+  localFile.append(localFileName);
+  return Services.io.newFileURI(localFile);
+}
+
+function _persistImage(sourceURL, localFileName, successCallback) {
+  if (/^(file|resource):/.test(sourceURL))
+    return;
+
+  var targetURI = _getLocalImageURI(localFileName);
+  var sourceURI = _makeURI(sourceURL);
+
+  var persist = Cc["@mozilla.org/embedding/browser/nsWebBrowserPersist;1"]
+                  .createInstance(Ci.nsIWebBrowserPersist);
+
+  persist.persistFlags =
+    Ci.nsIWebBrowserPersist.PERSIST_FLAGS_REPLACE_EXISTING_FILES |
+    Ci.nsIWebBrowserPersist.PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION |
+    (PERSIST_BYPASS_CACHE ?
+       Ci.nsIWebBrowserPersist.PERSIST_FLAGS_BYPASS_CACHE :
+       Ci.nsIWebBrowserPersist.PERSIST_FLAGS_FROM_CACHE);
+
+  persist.progressListener = new _persistProgressListener(successCallback);
+
+  persist.saveURI(sourceURI, null,
+                  null, Ci.nsIHttpChannel.REFERRER_POLICY_NO_REFERRER_WHEN_DOWNGRADE,
+                  null, null, targetURI, null);
+}
+
+function _persistProgressListener(successCallback) {
+  this.onLocationChange = function() {};
+  this.onProgressChange = function() {};
+  this.onStatusChange   = function() {};
+  this.onSecurityChange = function() {};
+  this.onStateChange    = function(aWebProgress, aRequest, aStateFlags, aStatus) {
+    if (aRequest &&
+        aStateFlags & Ci.nsIWebProgressListener.STATE_IS_NETWORK &&
+        aStateFlags & Ci.nsIWebProgressListener.STATE_STOP) {
+      try {
+        if (aRequest.QueryInterface(Ci.nsIHttpChannel).requestSucceeded) {
+          // success
+          successCallback();
+          return;
+        }
+      } catch (e) { }
+      // failure
+    }
+  };
+}
+
+AddonManagerPrivate.registerProvider(LightweightThemeManager, [
+  new AddonManagerPrivate.AddonType("theme", URI_EXTENSION_STRINGS,
+                                    STRING_TYPE_NAME,
+                                    AddonManager.VIEW_TYPE_LIST, 5000)
+]);
diff --git a/toolkit/mozapps/webextensions/addonManager.js b/toolkit/mozapps/webextensions/addonManager.js
new file mode 100644
index 000000000..d34cbaf62
--- /dev/null
+++ b/toolkit/mozapps/webextensions/addonManager.js
@@ -0,0 +1,296 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * This component serves as integration between the platform and AddonManager.
+ * It is responsible for initializing and shutting down the AddonManager as well
+ * as passing new installs from webpages to the AddonManager.
+ */
+
+"use strict";
+
+const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// The old XPInstall error codes
+const EXECUTION_ERROR   = -203;
+const CANT_READ_ARCHIVE = -207;
+const USER_CANCELLED    = -210;
+const DOWNLOAD_ERROR    = -228;
+const UNSUPPORTED_TYPE  = -244;
+const SUCCESS           = 0;
+
+const MSG_INSTALL_ENABLED  = "WebInstallerIsInstallEnabled";
+const MSG_INSTALL_ADDONS   = "WebInstallerInstallAddonsFromWebpage";
+const MSG_INSTALL_CALLBACK = "WebInstallerInstallCallback";
+
+const MSG_PROMISE_REQUEST  = "WebAPIPromiseRequest";
+const MSG_PROMISE_RESULT   = "WebAPIPromiseResult";
+const MSG_INSTALL_EVENT    = "WebAPIInstallEvent";
+const MSG_INSTALL_CLEANUP  = "WebAPICleanup";
+const MSG_ADDON_EVENT_REQ  = "WebAPIAddonEventRequest";
+const MSG_ADDON_EVENT      = "WebAPIAddonEvent";
+
+const CHILD_SCRIPT = "resource://gre/modules/addons/Content.js";
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+var gSingleton = null;
+
+function amManager() {
+  Cu.import("resource://gre/modules/AddonManager.jsm");
+  /* globals AddonManagerPrivate*/
+
+  Services.mm.loadFrameScript(CHILD_SCRIPT, true);
+  Services.mm.addMessageListener(MSG_INSTALL_ENABLED, this);
+  Services.mm.addMessageListener(MSG_INSTALL_ADDONS, this);
+  Services.mm.addMessageListener(MSG_PROMISE_REQUEST, this);
+  Services.mm.addMessageListener(MSG_INSTALL_CLEANUP, this);
+  Services.mm.addMessageListener(MSG_ADDON_EVENT_REQ, this);
+
+  Services.obs.addObserver(this, "message-manager-close", false);
+  Services.obs.addObserver(this, "message-manager-disconnect", false);
+
+  AddonManager.webAPI.setEventHandler(this.sendEvent);
+
+  // Needed so receiveMessage can be called directly by JS callers
+  this.wrappedJSObject = this;
+}
+
+amManager.prototype = {
+  observe: function(aSubject, aTopic, aData) {
+    switch (aTopic) {
+      case "addons-startup":
+        AddonManagerPrivate.startup();
+        break;
+
+      case "message-manager-close":
+      case "message-manager-disconnect":
+        this.childClosed(aSubject);
+        break;
+    }
+  },
+
+  /**
+   * @see amIAddonManager.idl
+   */
+  mapURIToAddonID: function(uri, id) {
+    id.value = AddonManager.mapURIToAddonID(uri);
+    return !!id.value;
+  },
+
+  /**
+   * @see amIWebInstaller.idl
+   */
+  isInstallEnabled: function(aMimetype, aReferer) {
+    return AddonManager.isInstallEnabled(aMimetype);
+  },
+
+  /**
+   * @see amIWebInstaller.idl
+   */
+  installAddonsFromWebpage: function(aMimetype, aBrowser, aInstallingPrincipal,
+                                     aUris, aHashes, aNames, aIcons, aCallback) {
+    if (aUris.length == 0)
+      return false;
+
+    let retval = true;
+    if (!AddonManager.isInstallAllowed(aMimetype, aInstallingPrincipal)) {
+      aCallback = null;
+      retval = false;
+    }
+
+    let installs = [];
+    function buildNextInstall() {
+      if (aUris.length == 0) {
+        AddonManager.installAddonsFromWebpage(aMimetype, aBrowser, aInstallingPrincipal, installs);
+        return;
+      }
+      let uri = aUris.shift();
+      AddonManager.getInstallForURL(uri, function(aInstall) {
+        function callCallback(aUri, aStatus) {
+          try {
+            aCallback.onInstallEnded(aUri, aStatus);
+          }
+          catch (e) {
+            Components.utils.reportError(e);
+          }
+        }
+
+        if (aInstall) {
+          installs.push(aInstall);
+          if (aCallback) {
+            aInstall.addListener({
+              onDownloadCancelled: function(aInstall) {
+                callCallback(uri, USER_CANCELLED);
+              },
+
+              onDownloadFailed: function(aInstall) {
+                if (aInstall.error == AddonManager.ERROR_CORRUPT_FILE)
+                  callCallback(uri, CANT_READ_ARCHIVE);
+                else
+                  callCallback(uri, DOWNLOAD_ERROR);
+              },
+
+              onInstallFailed: function(aInstall) {
+                callCallback(uri, EXECUTION_ERROR);
+              },
+
+              onInstallEnded: function(aInstall, aStatus) {
+                callCallback(uri, SUCCESS);
+              }
+            });
+          }
+        }
+        else if (aCallback) {
+          aCallback.onInstallEnded(uri, UNSUPPORTED_TYPE);
+        }
+        buildNextInstall();
+      }, aMimetype, aHashes.shift(), aNames.shift(), aIcons.shift(), null, aBrowser);
+    }
+    buildNextInstall();
+
+    return retval;
+  },
+
+  notify: function(aTimer) {
+    AddonManagerPrivate.backgroundUpdateTimerHandler();
+  },
+
+  // Maps message manager instances for content processes to the associated
+  // AddonListener instances.
+  addonListeners: new Map(),
+
+  _addAddonListener(target) {
+    if (!this.addonListeners.has(target)) {
+      let handler = (event, id, needsRestart) => {
+        target.sendAsyncMessage(MSG_ADDON_EVENT, {event, id, needsRestart});
+      };
+      let listener = {
+        onEnabling: (addon, needsRestart) => handler("onEnabling", addon.id, needsRestart),
+        onEnabled: (addon) => handler("onEnabled", addon.id, false),
+        onDisabling: (addon, needsRestart) => handler("onDisabling", addon.id, needsRestart),
+        onDisabled: (addon) => handler("onDisabled", addon.id, false),
+        onInstalling: (addon, needsRestart) => handler("onInstalling", addon.id, needsRestart),
+        onInstalled: (addon) => handler("onInstalled", addon.id, false),
+        onUninstalling: (addon, needsRestart) => handler("onUninstalling", addon.id, needsRestart),
+        onUninstalled: (addon) => handler("onUninstalled", addon.id, false),
+        onOperationCancelled: (addon) => handler("onOperationCancelled", addon.id, false),
+      };
+      this.addonListeners.set(target, listener);
+      AddonManager.addAddonListener(listener);
+    }
+  },
+
+  _removeAddonListener(target) {
+    if (this.addonListeners.has(target)) {
+      AddonManager.removeAddonListener(this.addonListeners.get(target));
+      this.addonListeners.delete(target);
+    }
+  },
+
+  /**
+   * messageManager callback function.
+   *
+   * Listens to requests from child processes for InstallTrigger
+   * activity, and sends back callbacks.
+   */
+  receiveMessage: function(aMessage) {
+    let payload = aMessage.data;
+
+    switch (aMessage.name) {
+      case MSG_INSTALL_ENABLED:
+        return AddonManager.isInstallEnabled(payload.mimetype);
+
+      case MSG_INSTALL_ADDONS: {
+        let callback = null;
+        if (payload.callbackID != -1) {
+          let mm = aMessage.target.messageManager;
+          callback = {
+            onInstallEnded: function(url, status) {
+              mm.sendAsyncMessage(MSG_INSTALL_CALLBACK, {
+                callbackID: payload.callbackID,
+                url: url,
+                status: status
+              });
+            },
+          };
+        }
+
+        return this.installAddonsFromWebpage(payload.mimetype,
+          aMessage.target, payload.triggeringPrincipal, payload.uris,
+          payload.hashes, payload.names, payload.icons, callback);
+      }
+
+      case MSG_PROMISE_REQUEST: {
+        let mm = aMessage.target.messageManager;
+        let resolve = (value) => {
+          mm.sendAsyncMessage(MSG_PROMISE_RESULT, {
+            callbackID: payload.callbackID,
+            resolve: value
+          });
+        }
+        let reject = (value) => {
+          mm.sendAsyncMessage(MSG_PROMISE_RESULT, {
+            callbackID: payload.callbackID,
+            reject: value
+          });
+        }
+
+        let API = AddonManager.webAPI;
+        if (payload.type in API) {
+          API[payload.type](aMessage.target, ...payload.args).then(resolve, reject);
+        }
+        else {
+          reject("Unknown Add-on API request.");
+        }
+        break;
+      }
+
+      case MSG_INSTALL_CLEANUP: {
+        AddonManager.webAPI.clearInstalls(payload.ids);
+        break;
+      }
+
+      case MSG_ADDON_EVENT_REQ: {
+        let target = aMessage.target.messageManager;
+        if (payload.enabled) {
+          this._addAddonListener(target);
+        } else {
+          this._removeAddonListener(target);
+        }
+      }
+    }
+    return undefined;
+  },
+
+  childClosed(target) {
+    AddonManager.webAPI.clearInstallsFrom(target);
+    this._removeAddonListener(target);
+  },
+
+  sendEvent(mm, data) {
+    mm.sendAsyncMessage(MSG_INSTALL_EVENT, data);
+  },
+
+  classID: Components.ID("{4399533d-08d1-458c-a87a-235f74451cfa}"),
+  _xpcom_factory: {
+    createInstance: function(aOuter, aIid) {
+      if (aOuter != null)
+        throw Components.Exception("Component does not support aggregation",
+                                   Cr.NS_ERROR_NO_AGGREGATION);
+
+      if (!gSingleton)
+        gSingleton = new amManager();
+      return gSingleton.QueryInterface(aIid);
+    }
+  },
+  QueryInterface: XPCOMUtils.generateQI([Ci.amIAddonManager,
+                                         Ci.amIWebInstaller,
+                                         Ci.nsITimerCallback,
+                                         Ci.nsIObserver,
+                                         Ci.nsIMessageListener])
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([amManager]);
diff --git a/toolkit/mozapps/webextensions/amContentHandler.js b/toolkit/mozapps/webextensions/amContentHandler.js
new file mode 100644
index 000000000..8dc4dfecd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/amContentHandler.js
@@ -0,0 +1,100 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+
+const XPI_CONTENT_TYPE = "application/x-xpinstall";
+const MSG_INSTALL_ADDONS = "WebInstallerInstallAddonsFromWebpage";
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+function amContentHandler() {
+}
+
+amContentHandler.prototype = {
+  /**
+   * Handles a new request for an application/x-xpinstall file.
+   *
+   * @param  aMimetype
+   *         The mimetype of the file
+   * @param  aContext
+   *         The context passed to nsIChannel.asyncOpen
+   * @param  aRequest
+   *         The nsIRequest dealing with the content
+   */
+  handleContent: function(aMimetype, aContext, aRequest) {
+    if (aMimetype != XPI_CONTENT_TYPE)
+      throw Cr.NS_ERROR_WONT_HANDLE_CONTENT;
+
+    if (!(aRequest instanceof Ci.nsIChannel))
+      throw Cr.NS_ERROR_WONT_HANDLE_CONTENT;
+
+    let uri = aRequest.URI;
+
+    let window = null;
+    let callbacks = aRequest.notificationCallbacks ?
+                    aRequest.notificationCallbacks :
+                    aRequest.loadGroup.notificationCallbacks;
+    if (callbacks)
+      window = callbacks.getInterface(Ci.nsIDOMWindow);
+
+    aRequest.cancel(Cr.NS_BINDING_ABORTED);
+
+    let installs = {
+      uris: [uri.spec],
+      hashes: [null],
+      names: [null],
+      icons: [null],
+      mimetype: XPI_CONTENT_TYPE,
+      triggeringPrincipal: aRequest.loadInfo.triggeringPrincipal,
+      callbackID: -1
+    };
+
+    if (Services.appinfo.processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT) {
+      // When running in the main process this might be a frame inside an
+      // in-content UI page, walk up to find the first frame element in a chrome
+      // privileged document
+      let element = window.frameElement;
+      let ssm = Services.scriptSecurityManager;
+      while (element && !ssm.isSystemPrincipal(element.ownerDocument.nodePrincipal))
+        element = element.ownerDocument.defaultView.frameElement;
+
+      if (element) {
+        let listener = Cc["@mozilla.org/addons/integration;1"].
+                       getService(Ci.nsIMessageListener);
+        listener.wrappedJSObject.receiveMessage({
+          name: MSG_INSTALL_ADDONS,
+          target: element,
+          data: installs,
+        });
+        return;
+      }
+    }
+
+    // Fall back to sending through the message manager
+    let messageManager = window.QueryInterface(Ci.nsIInterfaceRequestor)
+                               .getInterface(Ci.nsIDocShell)
+                               .QueryInterface(Ci.nsIInterfaceRequestor)
+                               .getInterface(Ci.nsIContentFrameMessageManager);
+
+    messageManager.sendAsyncMessage(MSG_INSTALL_ADDONS, installs);
+  },
+
+  classID: Components.ID("{7beb3ba8-6ec3-41b4-b67c-da89b8518922}"),
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentHandler]),
+
+  log : function(aMsg) {
+    let msg = "amContentHandler.js: " + (aMsg.join ? aMsg.join("") : aMsg);
+    Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService).
+      logStringMessage(msg);
+    dump(msg + "\n");
+  }
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([amContentHandler]);
diff --git a/toolkit/mozapps/webextensions/amIAddonManager.idl b/toolkit/mozapps/webextensions/amIAddonManager.idl
new file mode 100644
index 000000000..58a58b62d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/amIAddonManager.idl
@@ -0,0 +1,29 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+interface nsIURI;
+
+/**
+ * A service to make some AddonManager functionality available to C++ callers.
+ * Javascript callers should still use AddonManager.jsm directly.
+ */
+[scriptable, function, uuid(7b45d82d-7ad5-48d7-9b05-f32eb9818cd4)]
+interface amIAddonManager : nsISupports
+{
+  /**
+   * Synchronously map a URI to the corresponding Addon ID.
+   *
+   * Mappable URIs are limited to in-application resources belonging to the
+   * add-on, such as Javascript compartments, XUL windows, XBL bindings, etc.
+   * but do not include URIs from meta data, such as the add-on homepage.
+   *
+   * @param  aURI
+   *         The nsIURI to map
+   * @return
+   *         true if the URI has been mapped successfully to an Addon ID
+   */
+  boolean mapURIToAddonID(in nsIURI aURI, out AUTF8String aID);
+};
diff --git a/toolkit/mozapps/webextensions/amIAddonPathService.idl b/toolkit/mozapps/webextensions/amIAddonPathService.idl
new file mode 100644
index 000000000..9c9197a61
--- /dev/null
+++ b/toolkit/mozapps/webextensions/amIAddonPathService.idl
@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+interface nsIURI;
+
+/**
+ * This service maps file system paths where add-ons reside to the ID
+ * of the add-on. Paths are added by the add-on manager. They can
+ * looked up by anyone.
+ */
+[scriptable, uuid(fcd9e270-dfb1-11e3-8b68-0800200c9a66)]
+interface amIAddonPathService : nsISupports
+{
+  /**
+   * Given a path to a file, return the ID of the add-on that the file belongs
+   * to. Returns an empty string if there is no add-on there. Note that if an
+   * add-on is located at /a/b/c, then looking up the path /a/b/c/d will return
+   * that add-on.
+   */
+  AString findAddonId(in AString path);
+
+  /**
+   * Call this function to inform the service that the given file system path is
+   * associated with the given add-on ID.
+   */
+  void insertPath(in AString path, in AString addonId);
+
+  /**
+   * Given a URI to a file, return the ID of the add-on that the file belongs
+   * to. Returns an empty string if there is no add-on there.
+   */
+  AString mapURIToAddonId(in nsIURI aURI);
+};
diff --git a/toolkit/mozapps/webextensions/amIWebInstallListener.idl b/toolkit/mozapps/webextensions/amIWebInstallListener.idl
new file mode 100644
index 000000000..eed108097
--- /dev/null
+++ b/toolkit/mozapps/webextensions/amIWebInstallListener.idl
@@ -0,0 +1,134 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+interface nsIDOMElement;
+interface nsIURI;
+interface nsIVariant;
+
+/**
+ * amIWebInstallInfo is used by the default implementation of
+ * amIWebInstallListener to communicate with the running application and allow
+ * it to warn the user about blocked installs and start the installs running.
+ */
+[scriptable, uuid(fa0b47a3-f819-47ac-bc66-4bd1d7f67b1d)]
+interface amIWebInstallInfo : nsISupports
+{
+  readonly attribute nsIDOMElement browser;
+  readonly attribute nsIURI originatingURI;
+  readonly attribute nsIVariant installs;
+
+  /**
+   * Starts all installs.
+   */
+  void install();
+};
+
+/**
+ * The registered amIWebInstallListener is used to notify about new installs
+ * triggered by websites. The default implementation displays a confirmation
+ * dialog when add-ons are ready to install and uses the observer service to
+ * notify when installations are blocked.
+ */
+[scriptable, uuid(d9240d4b-6b3a-4cad-b402-de6c93337e0c)]
+interface amIWebInstallListener : nsISupports
+{
+  /**
+   * Called when installation by websites is currently disabled.
+   *
+   * @param  aBrowser
+   *         The browser that triggered the installs
+   * @param  aUri
+   *         The URI of the site that triggered the installs
+   * @param  aInstalls
+   *         The AddonInstalls that were blocked
+   * @param  aCount
+   *         The number of AddonInstalls
+   */
+  void onWebInstallDisabled(in nsIDOMElement aBrowser, in nsIURI aUri,
+                            [array, size_is(aCount)] in nsIVariant aInstalls,
+                            [optional] in uint32_t aCount);
+
+  /**
+   * Called when the website is not allowed to directly prompt the user to
+   * install add-ons.
+   *
+   * @param  aBrowser
+   *         The browser that triggered the installs
+   * @param  aUri
+   *         The URI of the site that triggered the installs
+   * @param  aInstalls
+   *         The AddonInstalls that were blocked
+   * @param  aCount
+   *         The number of AddonInstalls
+   * @return true if the caller should start the installs
+   */
+  boolean onWebInstallBlocked(in nsIDOMElement aBrowser, in nsIURI aUri,
+                              [array, size_is(aCount)] in nsIVariant aInstalls,
+                              [optional] in uint32_t aCount);
+
+  /**
+   * Called when a website wants to ask the user to install add-ons.
+   *
+   * @param  aBrowser
+   *         The browser that triggered the installs
+   * @param  aUri
+   *         The URI of the site that triggered the installs
+   * @param  aInstalls
+   *         The AddonInstalls that were requested
+   * @param  aCount
+   *         The number of AddonInstalls
+   * @return true if the caller should start the installs
+   */
+  boolean onWebInstallRequested(in nsIDOMElement aBrowser, in nsIURI aUri,
+                                [array, size_is(aCount)] in nsIVariant aInstalls,
+                                [optional] in uint32_t aCount);
+};
+
+[scriptable, uuid(a80b89ad-bb1a-4c43-9cb7-3ae656556f78)]
+interface amIWebInstallListener2 : nsISupports
+{
+  /**
+   * Called when a non-same-origin resource attempted to initiate an install.
+   * Installs will have already been cancelled and cannot be restarted.
+   *
+   * @param  aBrowser
+   *         The browser that triggered the installs
+   * @param  aUri
+   *         The URI of the site that triggered the installs
+   * @param  aInstalls
+   *         The AddonInstalls that were blocked
+   * @param  aCount
+   *         The number of AddonInstalls
+   */
+  boolean onWebInstallOriginBlocked(in nsIDOMElement aBrowser, in nsIURI aUri,
+                                    [array, size_is(aCount)] in nsIVariant aInstalls,
+                                    [optional] in uint32_t aCount);
+};
+
+/**
+ * amIWebInstallPrompt is used, if available, by the default implementation of 
+ * amIWebInstallInfo to display a confirmation UI to the user before running
+ * installs.
+ */
+[scriptable, uuid(386906f1-4d18-45bf-bc81-5dcd68e42c3b)]
+interface amIWebInstallPrompt : nsISupports
+{
+  /**
+   * Get a confirmation that the user wants to start the installs.
+   *
+   * @param  aBrowser
+   *         The browser that triggered the installs
+   * @param  aUri
+   *         The URI of the site that triggered the installs
+   * @param  aInstalls
+   *         The AddonInstalls that were requested
+   * @param  aCount
+   *         The number of AddonInstalls
+   */
+  void confirm(in nsIDOMElement aBrowser, in nsIURI aUri,
+               [array, size_is(aCount)] in nsIVariant aInstalls,
+               [optional] in uint32_t aCount);
+};
diff --git a/toolkit/mozapps/webextensions/amIWebInstaller.idl b/toolkit/mozapps/webextensions/amIWebInstaller.idl
new file mode 100644
index 000000000..6c5ebca67
--- /dev/null
+++ b/toolkit/mozapps/webextensions/amIWebInstaller.idl
@@ -0,0 +1,82 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsISupports.idl"
+
+interface nsIDOMElement;
+interface nsIVariant;
+interface nsIURI;
+
+/**
+ * A callback function used to notify webpages when a requested install has
+ * ended.
+ *
+ * NOTE: This is *not* the same as InstallListener.
+ */
+[scriptable, function, uuid(bb22f5c0-3ca1-48f6-873c-54e87987700f)]
+interface amIInstallCallback : nsISupports
+{
+  /**
+   * Called when an install completes or fails.
+   *
+   * @param  aUrl
+   *         The url of the add-on being installed
+   * @param  aStatus
+   *         0 if the install was successful or negative if not
+   */
+  void onInstallEnded(in AString aUrl, in int32_t aStatus);
+};
+
+
+/**
+ * This interface is used to allow webpages to start installing add-ons.
+ */
+[scriptable, uuid(658d6c09-15e0-4688-bee8-8551030472a9)]
+interface amIWebInstaller : nsISupports
+{
+  /**
+   * Checks if installation is enabled for a webpage.
+   *
+   * @param  aMimetype
+   *         The mimetype for the add-on to be installed
+   * @param  referer
+   *         The URL of the webpage trying to install an add-on
+   * @return true if installation is enabled
+   */
+  boolean isInstallEnabled(in AString aMimetype, in nsIURI aReferer);
+
+  /**
+   * Installs an array of add-ons at the request of a webpage
+   *
+   * @param  aMimetype
+   *         The mimetype for the add-ons
+   * @param  aBrowser
+   *         The browser installing the add-ons.
+   * @param  aReferer
+   *         The URI for the webpage installing the add-ons
+   * @param  aUris
+   *         The URIs of add-ons to be installed
+   * @param  aHashes
+   *         The hashes for the add-ons to be installed
+   * @param  aNames
+   *         The names for the add-ons to be installed
+   * @param  aIcons
+   *         The icons for the add-ons to be installed
+   * @param  aCallback
+   *         An optional callback to notify about installation success and
+   *         failure
+   * @param  aInstallCount
+   *         An optional argument including the number of add-ons to install
+   * @return true if the installation was successfully started
+   */
+  boolean installAddonsFromWebpage(in AString aMimetype,
+                                   in nsIDOMElement aBrowser,
+                                   in nsIURI aReferer,
+                                   [array, size_is(aInstallCount)] in wstring aUris,
+                                   [array, size_is(aInstallCount)] in wstring aHashes,
+                                   [array, size_is(aInstallCount)] in wstring aNames,
+                                   [array, size_is(aInstallCount)] in wstring aIcons,
+                                   [optional] in amIInstallCallback aCallback,
+                                   [optional] in uint32_t aInstallCount);
+};
diff --git a/toolkit/mozapps/webextensions/amInstallTrigger.js b/toolkit/mozapps/webextensions/amInstallTrigger.js
new file mode 100644
index 000000000..382791d32
--- /dev/null
+++ b/toolkit/mozapps/webextensions/amInstallTrigger.js
@@ -0,0 +1,240 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/Preferences.jsm");
+Cu.import("resource://gre/modules/Log.jsm");
+
+const XPINSTALL_MIMETYPE   = "application/x-xpinstall";
+
+const MSG_INSTALL_ENABLED  = "WebInstallerIsInstallEnabled";
+const MSG_INSTALL_ADDONS   = "WebInstallerInstallAddonsFromWebpage";
+const MSG_INSTALL_CALLBACK = "WebInstallerInstallCallback";
+
+
+var log = Log.repository.getLogger("AddonManager.InstallTrigger");
+log.level = Log.Level[Preferences.get("extensions.logging.enabled", false) ? "Warn" : "Trace"];
+
+function CallbackObject(id, callback, urls, mediator) {
+  this.id = id;
+  this.callback = callback;
+  this.urls = new Set(urls);
+  this.callCallback = function(url, status) {
+    try {
+      this.callback(url, status);
+    }
+    catch (e) {
+      log.warn("InstallTrigger callback threw an exception: " + e);
+    }
+
+    this.urls.delete(url);
+    if (this.urls.size == 0)
+      mediator._callbacks.delete(id);
+  };
+}
+
+function RemoteMediator(window) {
+  window.QueryInterface(Ci.nsIInterfaceRequestor);
+  let utils = window.getInterface(Ci.nsIDOMWindowUtils);
+  this._windowID = utils.currentInnerWindowID;
+
+  this.mm = window
+    .getInterface(Ci.nsIDocShell)
+    .QueryInterface(Ci.nsIInterfaceRequestor)
+    .getInterface(Ci.nsIContentFrameMessageManager);
+  this.mm.addWeakMessageListener(MSG_INSTALL_CALLBACK, this);
+
+  this._lastCallbackID = 0;
+  this._callbacks = new Map();
+}
+
+RemoteMediator.prototype = {
+  receiveMessage: function(message) {
+    if (message.name == MSG_INSTALL_CALLBACK) {
+      let payload = message.data;
+      let callbackHandler = this._callbacks.get(payload.callbackID);
+      if (callbackHandler) {
+        callbackHandler.callCallback(payload.url, payload.status);
+      }
+    }
+  },
+
+  enabled: function(url) {
+    let params = {
+      mimetype: XPINSTALL_MIMETYPE
+    };
+    return this.mm.sendSyncMessage(MSG_INSTALL_ENABLED, params)[0];
+  },
+
+  install: function(installs, principal, callback, window) {
+    let callbackID = this._addCallback(callback, installs.uris);
+
+    installs.mimetype = XPINSTALL_MIMETYPE;
+    installs.triggeringPrincipal = principal;
+    installs.callbackID = callbackID;
+
+    if (Services.appinfo.processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT) {
+      // When running in the main process this might be a frame inside an
+      // in-content UI page, walk up to find the first frame element in a chrome
+      // privileged document
+      let element = window.frameElement;
+      let ssm = Services.scriptSecurityManager;
+      while (element && !ssm.isSystemPrincipal(element.ownerDocument.nodePrincipal))
+        element = element.ownerDocument.defaultView.frameElement;
+
+      if (element) {
+        let listener = Cc["@mozilla.org/addons/integration;1"].
+                       getService(Ci.nsIMessageListener);
+        return listener.wrappedJSObject.receiveMessage({
+          name: MSG_INSTALL_ADDONS,
+          target: element,
+          data: installs,
+        });
+      }
+    }
+
+    // Fall back to sending through the message manager
+    let messageManager = window.QueryInterface(Ci.nsIInterfaceRequestor)
+                               .getInterface(Ci.nsIWebNavigation)
+                               .QueryInterface(Ci.nsIDocShell)
+                               .QueryInterface(Ci.nsIInterfaceRequestor)
+                               .getInterface(Ci.nsIContentFrameMessageManager);
+
+    return messageManager.sendSyncMessage(MSG_INSTALL_ADDONS, installs)[0];
+  },
+
+  _addCallback: function(callback, urls) {
+    if (!callback || typeof callback != "function")
+      return -1;
+
+    let callbackID = this._windowID + "-" + ++this._lastCallbackID;
+    let callbackObject = new CallbackObject(callbackID, callback, urls, this);
+    this._callbacks.set(callbackID, callbackObject);
+    return callbackID;
+  },
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsISupportsWeakReference])
+};
+
+
+function InstallTrigger() {
+}
+
+InstallTrigger.prototype = {
+  // Here be magic. We've declared ourselves as providing the
+  // nsIDOMGlobalPropertyInitializer interface, and are registered in the
+  // "JavaScript-global-property" category in the XPCOM category manager. This
+  // means that for newly created windows, XPCOM will createinstance this
+  // object, and then call init, passing in the window for which we need to
+  // provide an instance. We then initialize ourselves and return the webidl
+  // version of this object using the webidl-provided _create method, which
+  // XPCOM will then duly expose as a property value on the window. All this
+  // indirection is necessary because webidl does not (yet) support statics
+  // (bug 863952). See bug 926712 for more details about this implementation.
+  init: function(window) {
+    this._window = window;
+    this._principal = window.document.nodePrincipal;
+    this._url = window.document.documentURIObject;
+
+    try {
+      this._mediator = new RemoteMediator(window);
+    } catch (ex) {
+      // If we can't set up IPC (e.g., because this is a top-level window
+      // or something), then don't expose InstallTrigger.
+      return null;
+    }
+
+    return window.InstallTriggerImpl._create(window, this);
+  },
+
+  enabled: function() {
+    return this._mediator.enabled(this._url.spec);
+  },
+
+  updateEnabled: function() {
+    return this.enabled();
+  },
+
+  install: function(installs, callback) {
+    let installData = {
+      uris: [],
+      hashes: [],
+      names: [],
+      icons: [],
+    };
+
+    for (let name of Object.keys(installs)) {
+      let item = installs[name];
+      if (typeof item === "string") {
+        item = { URL: item };
+      }
+      if (!item.URL) {
+        throw new this._window.Error("Missing URL property for '" + name + "'");
+      }
+
+      let url = this._resolveURL(item.URL);
+      if (!this._checkLoadURIFromScript(url)) {
+        throw new this._window.Error("Insufficient permissions to install: " + url.spec);
+      }
+
+      let iconUrl = null;
+      if (item.IconURL) {
+        iconUrl = this._resolveURL(item.IconURL);
+        if (!this._checkLoadURIFromScript(iconUrl)) {
+          iconUrl = null; // If page can't load the icon, just ignore it
+        }
+      }
+
+      installData.uris.push(url.spec);
+      installData.hashes.push(item.Hash || null);
+      installData.names.push(name);
+      installData.icons.push(iconUrl ? iconUrl.spec : null);
+    }
+
+    return this._mediator.install(installData, this._principal, callback, this._window);
+  },
+
+  startSoftwareUpdate: function(url, flags) {
+    let filename = Services.io.newURI(url, null, null)
+                              .QueryInterface(Ci.nsIURL)
+                              .filename;
+    let args = {};
+    args[filename] = { "URL": url };
+    return this.install(args);
+  },
+
+  installChrome: function(type, url, skin) {
+    return this.startSoftwareUpdate(url);
+  },
+
+  _resolveURL: function(url) {
+    return Services.io.newURI(url, null, this._url);
+  },
+
+  _checkLoadURIFromScript: function(uri) {
+    let secman = Services.scriptSecurityManager;
+    try {
+      secman.checkLoadURIWithPrincipal(this._principal,
+                                       uri,
+                                       secman.DISALLOW_INHERIT_PRINCIPAL);
+      return true;
+    }
+    catch (e) {
+      return false;
+    }
+  },
+
+  classID: Components.ID("{9df8ef2b-94da-45c9-ab9f-132eb55fddf1}"),
+  contractID: "@mozilla.org/addons/installtrigger;1",
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports, Ci.nsIDOMGlobalPropertyInitializer])
+};
+
+
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([InstallTrigger]);
diff --git a/toolkit/mozapps/webextensions/amWebAPI.js b/toolkit/mozapps/webextensions/amWebAPI.js
new file mode 100644
index 000000000..5ad0d23f1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/amWebAPI.js
@@ -0,0 +1,269 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/Task.jsm");
+
+const MSG_PROMISE_REQUEST  = "WebAPIPromiseRequest";
+const MSG_PROMISE_RESULT   = "WebAPIPromiseResult";
+const MSG_INSTALL_EVENT    = "WebAPIInstallEvent";
+const MSG_INSTALL_CLEANUP  = "WebAPICleanup";
+const MSG_ADDON_EVENT_REQ  = "WebAPIAddonEventRequest";
+const MSG_ADDON_EVENT      = "WebAPIAddonEvent";
+
+class APIBroker {
+  constructor(mm) {
+    this.mm = mm;
+
+    this._promises = new Map();
+
+    // _installMap maps integer ids to DOM AddonInstall instances
+    this._installMap = new Map();
+
+    this.mm.addMessageListener(MSG_PROMISE_RESULT, this);
+    this.mm.addMessageListener(MSG_INSTALL_EVENT, this);
+
+    this._eventListener = null;
+  }
+
+  receiveMessage(message) {
+    let payload = message.data;
+
+    switch (message.name) {
+      case MSG_PROMISE_RESULT: {
+        if (!this._promises.has(payload.callbackID)) {
+          return;
+        }
+
+        let resolve = this._promises.get(payload.callbackID);
+        this._promises.delete(payload.callbackID);
+        resolve(payload);
+        break;
+      }
+
+      case MSG_INSTALL_EVENT: {
+        let install = this._installMap.get(payload.id);
+        if (!install) {
+          let err = new Error(`Got install event for unknown install ${payload.id}`);
+          Cu.reportError(err);
+          return;
+        }
+        install._dispatch(payload);
+        break;
+      }
+
+      case MSG_ADDON_EVENT: {
+        if (this._eventListener) {
+          this._eventListener(payload);
+        }
+      }
+    }
+  }
+
+  sendRequest(type, ...args) {
+    return new Promise(resolve => {
+      let callbackID = APIBroker._nextID++;
+
+      this._promises.set(callbackID, resolve);
+      this.mm.sendAsyncMessage(MSG_PROMISE_REQUEST, { type, callbackID, args });
+    });
+  }
+
+  setAddonListener(callback) {
+    this._eventListener = callback;
+    if (callback) {
+      this.mm.addMessageListener(MSG_ADDON_EVENT, this);
+      this.mm.sendAsyncMessage(MSG_ADDON_EVENT_REQ, {enabled: true});
+    } else {
+      this.mm.removeMessageListener(MSG_ADDON_EVENT, this);
+      this.mm.sendAsyncMessage(MSG_ADDON_EVENT_REQ, {enabled: false});
+    }
+  }
+
+  sendCleanup(ids) {
+    this.setAddonListener(null);
+    this.mm.sendAsyncMessage(MSG_INSTALL_CLEANUP, { ids });
+  }
+}
+
+APIBroker._nextID = 0;
+
+// Base class for building classes to back content-exposed interfaces.
+class APIObject {
+  init(window, broker, properties) {
+    this.window = window;
+    this.broker = broker;
+
+    // Copy any provided properties onto this object, webidl bindings
+    // will only expose to content what should be exposed.
+    for (let key of Object.keys(properties)) {
+      this[key] = properties[key];
+    }
+  }
+
+  /**
+   * Helper to implement an asychronous method visible to content, where
+   * the method is implemented by sending a message to the parent process
+   * and then wrapping the returned object or error in an appropriate object.
+   * This helper method ensures that:
+   *  - Returned Promise objects are from the content window
+   *  - Rejected Promises have Error objects from the content window
+   *  - Only non-internal errors are exposed to the caller
+   *
+   * @param {string} apiRequest The command to invoke in the parent process.
+   * @param {array<cloneable>} apiArgs The arguments to include with the
+   *                                   request to the parent process.
+   * @param {function} resultConvert If provided, a function called with the
+   *                                 result from the parent process as an
+   *                                 argument.  Used to convert the result
+   *                                 into something appropriate for content.
+   * @returns {Promise<any>} A Promise suitable for passing directly to content.
+   */
+  _apiTask(apiRequest, apiArgs, resultConverter) {
+    let win = this.window;
+    let broker = this.broker;
+    return new win.Promise((resolve, reject) => {
+      Task.spawn(function*() {
+        let result = yield broker.sendRequest(apiRequest, ...apiArgs);
+        if ("reject" in result) {
+          let err = new win.Error(result.reject.message);
+          // We don't currently put any other properties onto Errors
+          // generated by mozAddonManager.  If/when we do, they will
+          // need to get copied here.
+          reject(err);
+          return;
+        }
+
+        let obj = result.resolve;
+        if (resultConverter) {
+          obj = resultConverter(obj);
+        }
+        resolve(obj);
+      }).catch(err => {
+        Cu.reportError(err);
+        reject(new win.Error("Unexpected internal error"));
+      });
+    });
+  }
+}
+
+class Addon extends APIObject {
+  constructor(...args) {
+    super();
+    this.init(...args);
+  }
+
+  uninstall() {
+    return this._apiTask("addonUninstall", [this.id]);
+  }
+
+  setEnabled(value) {
+    return this._apiTask("addonSetEnabled", [this.id, value]);
+  }
+}
+
+class AddonInstall extends APIObject {
+  constructor(window, broker, properties) {
+    super();
+    this.init(window, broker, properties);
+
+    broker._installMap.set(properties.id, this);
+  }
+
+  _dispatch(data) {
+    // The message for the event includes updated copies of all install
+    // properties.  Use the usual "let webidl filter visible properties" trick.
+    for (let key of Object.keys(data)) {
+      this[key] = data[key];
+    }
+
+    let event = new this.window.Event(data.event);
+    this.__DOM_IMPL__.dispatchEvent(event);
+  }
+
+  install() {
+    return this._apiTask("addonInstallDoInstall", [this.id]);
+  }
+
+  cancel() {
+    return this._apiTask("addonInstallCancel", [this.id]);
+  }
+}
+
+class WebAPI extends APIObject {
+  constructor() {
+    super();
+    this.allInstalls = [];
+    this.listenerCount = 0;
+  }
+
+  init(window) {
+    let mm = window
+        .QueryInterface(Ci.nsIInterfaceRequestor)
+        .getInterface(Ci.nsIDocShell)
+        .QueryInterface(Ci.nsIInterfaceRequestor)
+        .getInterface(Ci.nsIContentFrameMessageManager);
+    let broker = new APIBroker(mm);
+
+    super.init(window, broker, {});
+
+    window.addEventListener("unload", event => {
+      this.broker.sendCleanup(this.allInstalls);
+    });
+  }
+
+  getAddonByID(id) {
+    return this._apiTask("getAddonByID", [id], addonInfo => {
+      if (!addonInfo) {
+        return null;
+      }
+      let addon = new Addon(this.window, this.broker, addonInfo);
+      return this.window.Addon._create(this.window, addon);
+    });
+  }
+
+  createInstall(options) {
+    return this._apiTask("createInstall", [options], installInfo => {
+      if (!installInfo) {
+        return null;
+      }
+      let install = new AddonInstall(this.window, this.broker, installInfo);
+      this.allInstalls.push(installInfo.id);
+      return this.window.AddonInstall._create(this.window, install);
+    });
+  }
+
+  eventListenerWasAdded(type) {
+    if (this.listenerCount == 0) {
+      this.broker.setAddonListener(data => {
+        let event = new this.window.AddonEvent(data.event, data);
+        this.__DOM_IMPL__.dispatchEvent(event);
+      });
+    }
+    this.listenerCount++;
+  }
+
+  eventListenerWasRemoved(type) {
+    this.listenerCount--;
+    if (this.listenerCount == 0) {
+      this.broker.setAddonListener(null);
+    }
+  }
+
+  QueryInterface(iid) {
+    if (iid.equals(WebAPI.classID) || iid.equals(Ci.nsISupports)
+        || iid.equals(Ci.nsIDOMGlobalPropertyInitializer)) {
+      return this;
+    }
+    return Cr.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+WebAPI.prototype.classID = Components.ID("{8866d8e3-4ea5-48b7-a891-13ba0ac15235}");
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([WebAPI]);
diff --git a/toolkit/mozapps/webextensions/amWebInstallListener.js b/toolkit/mozapps/webextensions/amWebInstallListener.js
new file mode 100644
index 000000000..0bcc345e8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/amWebInstallListener.js
@@ -0,0 +1,348 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * This is a default implementation of amIWebInstallListener that should work
+ * for most applications but can be overriden. It notifies the observer service
+ * about blocked installs. For normal installs it pops up an install
+ * confirmation when all the add-ons have been downloaded.
+ */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+const Cu = Components.utils;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/AddonManager.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/Preferences.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "PromptUtils", "resource://gre/modules/SharedPromptUtils.jsm");
+
+const URI_XPINSTALL_DIALOG = "chrome://mozapps/content/xpinstall/xpinstallConfirm.xul";
+
+// Installation can begin from any of these states
+const READY_STATES = [
+  AddonManager.STATE_AVAILABLE,
+  AddonManager.STATE_DOWNLOAD_FAILED,
+  AddonManager.STATE_INSTALL_FAILED,
+  AddonManager.STATE_CANCELLED
+];
+
+Cu.import("resource://gre/modules/Log.jsm");
+const LOGGER_ID = "addons.weblistener";
+
+// Create a new logger for use by the Addons Web Listener
+// (Requires AddonManager.jsm)
+var logger = Log.repository.getLogger(LOGGER_ID);
+
+function notifyObservers(aTopic, aBrowser, aUri, aInstalls) {
+  let info = {
+    browser: aBrowser,
+    originatingURI: aUri,
+    installs: aInstalls,
+
+    QueryInterface: XPCOMUtils.generateQI([Ci.amIWebInstallInfo])
+  };
+  Services.obs.notifyObservers(info, aTopic, null);
+}
+
+/**
+ * Creates a new installer to monitor downloads and prompt to install when
+ * ready
+ *
+ * @param  aBrowser
+ *         The browser that started the installations
+ * @param  aUrl
+ *         The URL that started the installations
+ * @param  aInstalls
+ *         An array of AddonInstalls
+ */
+function Installer(aBrowser, aUrl, aInstalls) {
+  this.browser = aBrowser;
+  this.url = aUrl;
+  this.downloads = aInstalls;
+  this.installed = [];
+
+  notifyObservers("addon-install-started", aBrowser, aUrl, aInstalls);
+
+  for (let install of aInstalls) {
+    install.addListener(this);
+
+    // Start downloading if it hasn't already begun
+    if (READY_STATES.indexOf(install.state) != -1)
+      install.install();
+  }
+
+  this.checkAllDownloaded();
+}
+
+Installer.prototype = {
+  browser: null,
+  downloads: null,
+  installed: null,
+  isDownloading: true,
+
+  /**
+   * Checks if all downloads are now complete and if so prompts to install.
+   */
+  checkAllDownloaded: function() {
+    // Prevent re-entrancy caused by the confirmation dialog cancelling unwanted
+    // installs.
+    if (!this.isDownloading)
+      return;
+
+    var failed = [];
+    var installs = [];
+
+    for (let install of this.downloads) {
+      switch (install.state) {
+      case AddonManager.STATE_AVAILABLE:
+      case AddonManager.STATE_DOWNLOADING:
+        // Exit early if any add-ons haven't started downloading yet or are
+        // still downloading
+        return;
+      case AddonManager.STATE_DOWNLOAD_FAILED:
+        failed.push(install);
+        break;
+      case AddonManager.STATE_DOWNLOADED:
+        // App disabled items are not compatible and so fail to install
+        if (install.addon.appDisabled)
+          failed.push(install);
+        else
+          installs.push(install);
+
+        if (install.linkedInstalls) {
+          for (let linkedInstall of install.linkedInstalls) {
+            linkedInstall.addListener(this);
+            // Corrupt or incompatible items fail to install
+            if (linkedInstall.state == AddonManager.STATE_DOWNLOAD_FAILED || linkedInstall.addon.appDisabled)
+              failed.push(linkedInstall);
+            else
+              installs.push(linkedInstall);
+          }
+        }
+        break;
+      case AddonManager.STATE_CANCELLED:
+        // Just ignore cancelled downloads
+        break;
+      default:
+        logger.warn("Download of " + install.sourceURI.spec + " in unexpected state " +
+                    install.state);
+      }
+    }
+
+    this.isDownloading = false;
+    this.downloads = installs;
+
+    if (failed.length > 0) {
+      // Stop listening and cancel any installs that are failed because of
+      // compatibility reasons.
+      for (let install of failed) {
+        if (install.state == AddonManager.STATE_DOWNLOADED) {
+          install.removeListener(this);
+          install.cancel();
+        }
+      }
+      notifyObservers("addon-install-failed", this.browser, this.url, failed);
+    }
+
+    // If none of the downloads were successful then exit early
+    if (this.downloads.length == 0)
+      return;
+
+    // Check for a custom installation prompt that may be provided by the
+    // applicaton
+    if ("@mozilla.org/addons/web-install-prompt;1" in Cc) {
+      try {
+        let prompt = Cc["@mozilla.org/addons/web-install-prompt;1"].
+                     getService(Ci.amIWebInstallPrompt);
+        prompt.confirm(this.browser, this.url, this.downloads, this.downloads.length);
+        return;
+      }
+      catch (e) {}
+    }
+
+    if (Preferences.get("xpinstall.customConfirmationUI", false)) {
+      notifyObservers("addon-install-confirmation", this.browser, this.url, this.downloads);
+      return;
+    }
+
+    let args = {};
+    args.url = this.url;
+    args.installs = this.downloads;
+    args.wrappedJSObject = args;
+
+    try {
+      Cc["@mozilla.org/base/telemetry;1"].
+            getService(Ci.nsITelemetry).
+            getHistogramById("SECURITY_UI").
+            add(Ci.nsISecurityUITelemetry.WARNING_CONFIRM_ADDON_INSTALL);
+      let parentWindow = null;
+      if (this.browser) {
+        parentWindow = this.browser.ownerDocument.defaultView;
+        PromptUtils.fireDialogEvent(parentWindow, "DOMWillOpenModalDialog", this.browser);
+      }
+      Services.ww.openWindow(parentWindow, URI_XPINSTALL_DIALOG,
+                             null, "chrome,modal,centerscreen", args);
+    } catch (e) {
+      logger.warn("Exception showing install confirmation dialog", e);
+      for (let install of this.downloads) {
+        install.removeListener(this);
+        // Cancel the installs, as currently there is no way to make them fail
+        // from here.
+        install.cancel();
+      }
+      notifyObservers("addon-install-cancelled", this.browser, this.url,
+                      this.downloads);
+    }
+  },
+
+  /**
+   * Checks if all installs are now complete and if so notifies observers.
+   */
+  checkAllInstalled: function() {
+    var failed = [];
+
+    for (let install of this.downloads) {
+      switch (install.state) {
+      case AddonManager.STATE_DOWNLOADED:
+      case AddonManager.STATE_INSTALLING:
+        // Exit early if any add-ons haven't started installing yet or are
+        // still installing
+        return;
+      case AddonManager.STATE_INSTALL_FAILED:
+        failed.push(install);
+        break;
+      }
+    }
+
+    this.downloads = null;
+
+    if (failed.length > 0)
+      notifyObservers("addon-install-failed", this.browser, this.url, failed);
+
+    if (this.installed.length > 0)
+      notifyObservers("addon-install-complete", this.browser, this.url, this.installed);
+    this.installed = null;
+  },
+
+  onDownloadCancelled: function(aInstall) {
+    aInstall.removeListener(this);
+    this.checkAllDownloaded();
+  },
+
+  onDownloadFailed: function(aInstall) {
+    aInstall.removeListener(this);
+    this.checkAllDownloaded();
+  },
+
+  onDownloadEnded: function(aInstall) {
+    this.checkAllDownloaded();
+    return false;
+  },
+
+  onInstallCancelled: function(aInstall) {
+    aInstall.removeListener(this);
+    this.checkAllInstalled();
+  },
+
+  onInstallFailed: function(aInstall) {
+    aInstall.removeListener(this);
+    this.checkAllInstalled();
+  },
+
+  onInstallEnded: function(aInstall) {
+    aInstall.removeListener(this);
+    this.installed.push(aInstall);
+
+    // If installing a theme that is disabled and can be enabled then enable it
+    if (aInstall.addon.type == "theme" &&
+        aInstall.addon.userDisabled == true &&
+        aInstall.addon.appDisabled == false) {
+      aInstall.addon.userDisabled = false;
+    }
+
+    this.checkAllInstalled();
+  }
+};
+
+function extWebInstallListener() {
+}
+
+extWebInstallListener.prototype = {
+  /**
+   * @see amIWebInstallListener.idl
+   */
+  onWebInstallDisabled: function(aBrowser, aUri, aInstalls) {
+    let info = {
+      browser: aBrowser,
+      originatingURI: aUri,
+      installs: aInstalls,
+
+      QueryInterface: XPCOMUtils.generateQI([Ci.amIWebInstallInfo])
+    };
+    Services.obs.notifyObservers(info, "addon-install-disabled", null);
+  },
+
+  /**
+   * @see amIWebInstallListener.idl
+   */
+  onWebInstallOriginBlocked: function(aBrowser, aUri, aInstalls) {
+    let info = {
+      browser: aBrowser,
+      originatingURI: aUri,
+      installs: aInstalls,
+
+      install: function() {
+      },
+
+      QueryInterface: XPCOMUtils.generateQI([Ci.amIWebInstallInfo])
+    };
+    Services.obs.notifyObservers(info, "addon-install-origin-blocked", null);
+
+    return false;
+  },
+
+  /**
+   * @see amIWebInstallListener.idl
+   */
+  onWebInstallBlocked: function(aBrowser, aUri, aInstalls) {
+    let info = {
+      browser: aBrowser,
+      originatingURI: aUri,
+      installs: aInstalls,
+
+      install: function() {
+        new Installer(this.browser, this.originatingURI, this.installs);
+      },
+
+      QueryInterface: XPCOMUtils.generateQI([Ci.amIWebInstallInfo])
+    };
+    Services.obs.notifyObservers(info, "addon-install-blocked", null);
+
+    return false;
+  },
+
+  /**
+   * @see amIWebInstallListener.idl
+   */
+  onWebInstallRequested: function(aBrowser, aUri, aInstalls) {
+    new Installer(aBrowser, aUri, aInstalls);
+
+    // We start the installs ourself
+    return false;
+  },
+
+  classDescription: "XPI Install Handler",
+  contractID: "@mozilla.org/addons/web-install-listener;1",
+  classID: Components.ID("{0f38e086-89a3-40a5-8ffc-9b694de1d04a}"),
+  QueryInterface: XPCOMUtils.generateQI([Ci.amIWebInstallListener,
+                                         Ci.amIWebInstallListener2])
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([extWebInstallListener]);
diff --git a/toolkit/mozapps/webextensions/content/OpenH264-license.txt b/toolkit/mozapps/webextensions/content/OpenH264-license.txt
new file mode 100644
index 000000000..ad37989b8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/OpenH264-license.txt
@@ -0,0 +1,59 @@
+-------------------------------------------------------

+About The Cisco-Provided Binary of OpenH264 Video Codec

+-------------------------------------------------------

+

+Cisco provides this program under the terms of the BSD license.  

+

+Additionally, this binary is licensed under Cisco’s AVC/H.264 Patent Portfolio License from MPEG LA, at no cost to you, provided that the requirements and conditions shown below in the AVC/H.264 Patent Portfolio sections are met.  

+

+As with all AVC/H.264 codecs, you may also obtain your own patent license from MPEG LA or from the individual patent owners, or proceed at your own risk.  Your rights from Cisco under the BSD license are not affected by this choice.  

+

+For more information on the OpenH264 binary licensing, please see the OpenH264 FAQ found at http://www.openh264.org/faq.html#binary 

+

+A corresponding source code to this binary program is available under the same BSD terms, which can be found at http://www.openh264.org

+

+-----------

+BSD License

+-----------

+

+Copyright © 2014 Cisco Systems, Inc.

+

+All rights reserved.

+

+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

+

+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

+

+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

+

+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+

+-----------------------------------------

+AVC/H.264 Patent Portfolio License Notice

+-----------------------------------------

+

+The binary form of this Software is distributed by Cisco under the AVC/H.264 Patent Portfolio License from MPEG LA, and is subject to the following requirements, which may or may not be applicable to your use of this software: 

+

+THIS PRODUCT IS LICENSED UNDER THE AVC PATENT PORTFOLIO LICENSE FOR THE PERSONAL USE OF A CONSUMER OR OTHER USES IN WHICH IT DOES NOT RECEIVE REMUNERATION TO (i) ENCODE VIDEO IN COMPLIANCE WITH THE AVC STANDARD (“AVC VIDEO”) AND/OR (ii) DECODE AVC VIDEO THAT WAS ENCODED BY A CONSUMER ENGAGED IN A PERSONAL ACTIVITY AND/OR WAS OBTAINED FROM A VIDEO PROVIDER LICENSED TO PROVIDE AVC VIDEO.  NO LICENSE IS GRANTED OR SHALL BE IMPLIED FOR ANY OTHER USE.  ADDITIONAL INFORMATION MAY BE OBTAINED FROM MPEG LA, L.L.C. SEE HTTP://WWW.MPEGLA.COM

+

+Accordingly, please be advised that content providers and broadcasters using AVC/H.264 in their service may be required to obtain a separate use license from MPEG LA, referred to as "(b) sublicenses" in the SUMMARY OF AVC/H.264 LICENSE TERMS from MPEG LA found at http://www.openh264.org/mpegla

+

+---------------------------------------------

+AVC/H.264 Patent Portfolio License Conditions

+---------------------------------------------

+

+In addition, the Cisco-provided binary of this Software is licensed under Cisco's license from MPEG LA only if the following conditions are met:

+

+1. The Cisco-provided binary is separately downloaded to an end user’s device, and not integrated into or combined with third party software prior to being downloaded to the end user’s device;

+

+2. The end user must have the ability to control (e.g., to enable, disable, or re-enable) the use of the Cisco-provided binary;

+

+3. Third party software, in the location where end users can control the use of the Cisco-provided binary, must display the following text:

+

+       "OpenH264 Video Codec provided by Cisco Systems, Inc."

+

+4.  Any third-party software that makes use of the Cisco-provided binary must reproduce all of the above text, as well as this last condition, in the EULA and/or in another location where licensing information is to be presented to the end user.  

+ 

+

+

+                          v1.0

diff --git a/toolkit/mozapps/webextensions/content/about.js b/toolkit/mozapps/webextensions/content/about.js
new file mode 100644
index 000000000..4f8fb353e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/about.js
@@ -0,0 +1,103 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../../content/contentAreaUtils.js */
+
+var Cu = Components.utils;
+Cu.import("resource://gre/modules/AddonManager.jsm");
+
+function init() {
+  var addon = window.arguments[0];
+  var extensionsStrings = document.getElementById("extensionsStrings");
+
+  document.documentElement.setAttribute("addontype", addon.type);
+
+  var iconURL = AddonManager.getPreferredIconURL(addon, 48, window);
+  if (iconURL) {
+    var extensionIcon = document.getElementById("extensionIcon");
+    extensionIcon.src = iconURL;
+  }
+
+  document.title = extensionsStrings.getFormattedString("aboutWindowTitle", [addon.name]);
+  var extensionName = document.getElementById("extensionName");
+  extensionName.textContent = addon.name;
+
+  var extensionVersion = document.getElementById("extensionVersion");
+  if (addon.version)
+    extensionVersion.setAttribute("value", extensionsStrings.getFormattedString("aboutWindowVersionString", [addon.version]));
+  else
+    extensionVersion.hidden = true;
+
+  var extensionDescription = document.getElementById("extensionDescription");
+  if (addon.description)
+    extensionDescription.textContent = addon.description;
+  else
+    extensionDescription.hidden = true;
+
+  var numDetails = 0;
+
+  var extensionCreator = document.getElementById("extensionCreator");
+  if (addon.creator) {
+    extensionCreator.setAttribute("value", addon.creator);
+    numDetails++;
+  } else {
+    extensionCreator.hidden = true;
+    var extensionCreatorLabel = document.getElementById("extensionCreatorLabel");
+    extensionCreatorLabel.hidden = true;
+  }
+
+  var extensionHomepage = document.getElementById("extensionHomepage");
+  var homepageURL = addon.homepageURL;
+  if (homepageURL) {
+    extensionHomepage.setAttribute("homepageURL", homepageURL);
+    extensionHomepage.setAttribute("tooltiptext", homepageURL);
+    numDetails++;
+  } else {
+    extensionHomepage.hidden = true;
+  }
+
+  numDetails += appendToList("extensionDevelopers", "developersBox", addon.developers);
+  numDetails += appendToList("extensionTranslators", "translatorsBox", addon.translators);
+  numDetails += appendToList("extensionContributors", "contributorsBox", addon.contributors);
+
+  if (numDetails == 0) {
+    var groove = document.getElementById("groove");
+    groove.hidden = true;
+    var extensionDetailsBox = document.getElementById("extensionDetailsBox");
+    extensionDetailsBox.hidden = true;
+  }
+
+  var acceptButton = document.documentElement.getButton("accept");
+  acceptButton.label = extensionsStrings.getString("aboutWindowCloseButton");
+
+  setTimeout(sizeToContent, 0);
+}
+
+function appendToList(aHeaderId, aNodeId, aItems) {
+  var header = document.getElementById(aHeaderId);
+  var node = document.getElementById(aNodeId);
+
+  if (!aItems || aItems.length == 0) {
+    header.hidden = true;
+    return 0;
+  }
+
+  for (let currentItem of aItems) {
+    var label = document.createElement("label");
+    label.textContent = currentItem;
+    label.setAttribute("class", "contributor");
+    node.appendChild(label);
+  }
+
+  return aItems.length;
+}
+
+function loadHomepage(aEvent) {
+  window.close();
+  openURL(aEvent.target.getAttribute("homepageURL"));
+}
diff --git a/toolkit/mozapps/webextensions/content/about.xul b/toolkit/mozapps/webextensions/content/about.xul
new file mode 100644
index 000000000..6effcf37a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/about.xul
@@ -0,0 +1,57 @@
+<?xml version="1.0"?>
+
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?> 
+<?xml-stylesheet href="chrome://mozapps/skin/extensions/about.css" type="text/css"?> 
+
+<!DOCTYPE dialog SYSTEM "chrome://mozapps/locale/extensions/about.dtd">
+
+<dialog id="genericAbout"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        onload="init();"
+        buttons="accept"
+        buttoniconaccept="close"
+        onaccept="close();">
+
+  <script type="application/javascript" src="chrome://mozapps/content/extensions/about.js"/>
+  <script type="application/javascript" src="chrome://global/content/contentAreaUtils.js"/>
+
+  <stringbundleset id="aboutSet">
+    <stringbundle id="extensionsStrings" src="chrome://mozapps/locale/extensions/extensions.properties"/>
+  </stringbundleset>
+
+  <vbox id="clientBox" flex="1">
+    <hbox class="basic-info">
+      <vbox pack="center">
+        <image id="extensionIcon"/>
+      </vbox>
+      <vbox flex="1">
+        <label id="extensionName"/>
+        <label id="extensionVersion" crop="end"/>
+      </vbox>
+    </hbox>
+    <description id="extensionDescription" class="boxIndent"/>
+
+    <separator id="groove" class="groove"/>
+
+    <vbox id="extensionDetailsBox" flex="1">
+      <label id="extensionCreatorLabel" class="sectionTitle">&creator.label;</label>
+      <hbox id="creatorBox" class="boxIndent">
+        <label id="extensionCreator" flex="1" crop="end"/>
+        <label id="extensionHomepage" onclick="if (event.button == 0) { loadHomepage(event); }"
+               class="text-link" value="&homepage.label;"/>
+      </hbox>
+  
+      <label id="extensionDevelopers" class="sectionTitle">&developers.label;</label>
+      <vbox flex="1" id="developersBox" class="boxIndent"/>
+      <label id="extensionTranslators" class="sectionTitle">&translators.label;</label>
+      <vbox flex="1" id="translatorsBox" class="boxIndent"/>
+      <label id="extensionContributors" class="sectionTitle">&contributors.label;</label>
+      <vbox flex="1" id="contributorsBox" class="boxIndent"/>
+    </vbox>
+  </vbox>
+
+</dialog>
diff --git a/toolkit/mozapps/webextensions/content/blocklist.css b/toolkit/mozapps/webextensions/content/blocklist.css
new file mode 100644
index 000000000..cb48005a2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/blocklist.css
@@ -0,0 +1,11 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+.hardBlockedAddon {
+  -moz-binding: url("chrome://mozapps/content/extensions/blocklist.xml#hardblockedaddon");
+}
+
+.softBlockedAddon {
+  -moz-binding: url("chrome://mozapps/content/extensions/blocklist.xml#softblockedaddon");
+}
diff --git a/toolkit/mozapps/webextensions/content/blocklist.js b/toolkit/mozapps/webextensions/content/blocklist.js
new file mode 100644
index 000000000..6d524e6ee
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/blocklist.js
@@ -0,0 +1,72 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+var gArgs;
+
+function init() {
+  var hasHardBlocks = false;
+  var hasSoftBlocks = false;
+  gArgs = window.arguments[0].wrappedJSObject;
+
+  // NOTE: We use strings from the "updates.properties" bundleset to change the
+  // text on the "Cancel" button to "Restart Later". (bug 523784)
+  let bundle = Services.strings.
+              createBundle("chrome://mozapps/locale/update/updates.properties");
+  let cancelButton = document.documentElement.getButton("cancel");
+  cancelButton.setAttribute("label", bundle.GetStringFromName("restartLaterButton"));
+  cancelButton.setAttribute("accesskey",
+                            bundle.GetStringFromName("restartLaterButton.accesskey"));
+
+  var richlist = document.getElementById("addonList");
+  var list = gArgs.list;
+  list.sort(function(a, b) { return String.localeCompare(a.name, b.name); });
+  for (let listItem of list) {
+    let item = document.createElement("richlistitem");
+    item.setAttribute("name", listItem.name);
+    item.setAttribute("version", listItem.version);
+    item.setAttribute("icon", listItem.icon);
+    if (listItem.blocked) {
+      item.setAttribute("class", "hardBlockedAddon");
+      hasHardBlocks = true;
+    }
+    else {
+      item.setAttribute("class", "softBlockedAddon");
+      hasSoftBlocks = true;
+    }
+    richlist.appendChild(item);
+  }
+
+  if (hasHardBlocks && hasSoftBlocks)
+    document.getElementById("bothMessage").hidden = false;
+  else if (hasHardBlocks)
+    document.getElementById("hardBlockMessage").hidden = false;
+  else
+    document.getElementById("softBlockMessage").hidden = false;
+
+  var link = document.getElementById("moreInfo");
+  if (list.length == 1 && list[0].url) {
+    link.setAttribute("href", list[0].url);
+  }
+  else {
+    var url = Services.urlFormatter.formatURLPref("extensions.blocklist.detailsURL");
+    link.setAttribute("href", url);
+  }
+}
+
+function finish(shouldRestartNow) {
+  gArgs.restart = shouldRestartNow;
+  var list = gArgs.list;
+  var items = document.getElementById("addonList").childNodes;
+  for (let i = 0; i < list.length; i++) {
+    if (!list[i].blocked)
+      list[i].disable = items[i].checked;
+  }
+  return true;
+}
diff --git a/toolkit/mozapps/webextensions/content/blocklist.xml b/toolkit/mozapps/webextensions/content/blocklist.xml
new file mode 100644
index 000000000..74474392f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/blocklist.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0"?>
+
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!DOCTYPE bindings [
+  <!ENTITY % blocklistDTD SYSTEM "chrome://mozapps/locale/extensions/blocklist.dtd" >
+  %blocklistDTD;
+]>
+
+<bindings id="blocklistBindings"
+          xmlns="http://www.mozilla.org/xbl"
+          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+          xmlns:xbl="http://www.mozilla.org/xbl">
+
+  <binding id="hardblockedaddon">
+    <content align="start">
+      <xul:image xbl:inherits="src=icon"/>
+      <xul:vbox flex="1">
+        <xul:hbox class="addon-name-version">
+          <xul:label class="addonName" crop="end" xbl:inherits="value=name"/>
+          <xul:label class="addonVersion" xbl:inherits="value=version"/>
+        </xul:hbox>
+        <xul:hbox>
+          <xul:spacer flex="1"/>
+          <xul:label class="blockedLabel" value="&blocklist.blocked.label;"/>
+        </xul:hbox>
+      </xul:vbox>
+    </content>
+  </binding>
+
+  <binding id="softblockedaddon">
+    <content align="start">
+      <xul:image xbl:inherits="src=icon"/>
+      <xul:vbox flex="1">
+        <xul:hbox class="addon-name-version">
+          <xul:label class="addonName" crop="end" xbl:inherits="value=name"/>
+          <xul:label class="addonVersion" xbl:inherits="value=version"/>
+        </xul:hbox>
+        <xul:hbox>
+          <xul:spacer flex="1"/>
+          <xul:checkbox class="disableCheckbox" checked="true" label="&blocklist.checkbox.label;"/>
+        </xul:hbox>
+      </xul:vbox>
+    </content>
+    <implementation>
+      <field name="_checkbox">
+        document.getAnonymousElementByAttribute(this, "class", "disableCheckbox")
+      </field>
+      <property name="checked" readonly="true">
+        <getter>
+          return this._checkbox.checked;
+        </getter>
+      </property>
+    </implementation>
+  </binding>
+</bindings>
diff --git a/toolkit/mozapps/webextensions/content/blocklist.xul b/toolkit/mozapps/webextensions/content/blocklist.xul
new file mode 100644
index 000000000..240d9e4e1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/blocklist.xul
@@ -0,0 +1,46 @@
+<?xml version="1.0"?>
+
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/"?>
+<?xml-stylesheet href="chrome://mozapps/skin/extensions/blocklist.css"?>
+<?xml-stylesheet href="chrome://mozapps/content/extensions/blocklist.css"?>
+
+<!DOCTYPE dialog [
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+%brandDTD;
+<!ENTITY % extensionsDTD SYSTEM "chrome://mozapps/locale/extensions/blocklist.dtd">
+%extensionsDTD;
+]>
+
+<dialog windowtype="Addons:Blocklist" title="&blocklist.title;" align="stretch"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        onload="init();" ondialogaccept="return finish(true)"
+                         ondialogcancel="return finish(false)"
+        buttons="accept,cancel" style="&blocklist.style;"
+        buttonlabelaccept="&blocklist.accept.label;"
+        buttonaccesskeyaccept="&blocklist.accept.accesskey;">
+
+  <script type="application/javascript" src="chrome://global/content/globalOverlay.js"/>
+  <script type="application/javascript" src="chrome://mozapps/content/extensions/blocklist.js"/>
+
+  <hbox align="stretch" flex="1">
+    <vbox pack="start">
+      <image class="error-icon"/>
+    </vbox>
+    <vbox flex="1">
+      <label>&blocklist.summary;</label>
+      <separator class="thin"/>
+      <richlistbox id="addonList" flex="1"/>
+      <separator class="thin"/>
+      <description id="bothMessage" hidden="true" class="bold">&blocklist.softandhard;</description>
+      <description id="hardBlockMessage" hidden="true" class="bold">&blocklist.hardblocked;</description>
+      <description id="softBlockMessage" hidden="true" class="bold">&blocklist.softblocked;</description>
+      <hbox pack="start">
+        <label id="moreInfo" class="text-link" value="&blocklist.moreinfo;"/>
+      </hbox>
+    </vbox>
+  </hbox>
+</dialog>
diff --git a/toolkit/mozapps/webextensions/content/eula.js b/toolkit/mozapps/webextensions/content/eula.js
new file mode 100644
index 000000000..537ee7284
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/eula.js
@@ -0,0 +1,25 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+var Cu = Components.utils;
+Cu.import("resource://gre/modules/AddonManager.jsm");
+
+function Startup() {
+  var bundle = document.getElementById("extensionsStrings");
+  var addon = window.arguments[0].addon;
+
+  document.documentElement.setAttribute("addontype", addon.type);
+
+  var iconURL = AddonManager.getPreferredIconURL(addon, 48, window);
+  if (iconURL)
+    document.getElementById("icon").src = iconURL;
+
+  var label = document.createTextNode(bundle.getFormattedString("eulaHeader", [addon.name]));
+  document.getElementById("heading").appendChild(label);
+  document.getElementById("eula").value = addon.eula;
+}
diff --git a/toolkit/mozapps/webextensions/content/eula.xul b/toolkit/mozapps/webextensions/content/eula.xul
new file mode 100644
index 000000000..10e657951
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/eula.xul
@@ -0,0 +1,35 @@
+<?xml version="1.0"?>
+
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://mozapps/skin/extensions/eula.css" type="text/css"?>
+
+<!DOCTYPE window [
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+%brandDTD;
+<!ENTITY % extensionsDTD SYSTEM "chrome://mozapps/locale/extensions/extensions.dtd">
+%extensionsDTD;
+]>
+
+<dialog xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        title="&eula.title;" width="&eula.width;" height="&eula.height;"
+        buttons="accept,cancel" buttonlabelaccept="&eula.accept;"
+        ondialogaccept="window.arguments[0].accepted = true"
+        onload="Startup();">
+
+  <script type="application/javascript" src="chrome://mozapps/content/extensions/eula.js"/>
+  
+  <stringbundleset id="extensionsSet">
+    <stringbundle id="extensionsStrings" src="chrome://mozapps/locale/extensions/extensions.properties"/>
+  </stringbundleset>
+
+  <hbox id="heading-container">
+    <image id="icon"/>
+    <label id="heading" flex="1"/>
+  </hbox>
+  
+  <textbox id="eula" multiline="true" readonly="true" flex="1"/>
+</dialog>
diff --git a/toolkit/mozapps/webextensions/content/extensions.css b/toolkit/mozapps/webextensions/content/extensions.css
new file mode 100644
index 000000000..cb5313365
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/extensions.css
@@ -0,0 +1,270 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+@namespace xhtml "http://www.w3.org/1999/xhtml";
+
+/* HTML link elements do weird things to the layout if they are not hidden */
+xhtml|link {
+  display: none;
+}
+
+#categories {
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#categories-list");
+}
+
+.category {
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#category");
+}
+
+.sort-controls {
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#sorters");
+}
+
+.addon[status="installed"] {
+  -moz-box-orient: vertical;
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#addon-generic");
+}
+
+.addon[status="installing"] {
+  -moz-box-orient: vertical;
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#addon-installing");
+}
+
+.addon[pending="uninstall"] {
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#addon-uninstalled");
+}
+
+.creator {
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#creator-link");
+}
+
+.meta-rating {
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#rating");
+}
+
+.download-progress, .download-progress[mode="undetermined"] {
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#download-progress");
+}
+
+.install-status {
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#install-status");
+}
+
+.detail-row {
+  -moz-binding: url("chrome://mozapps/content/extensions/extensions.xml#detail-row");
+}
+
+.text-list {
+  white-space: pre-line;
+  -moz-user-select: element;
+}
+
+setting, row[unsupported="true"] {
+  display: none;
+}
+
+setting[type="bool"] {
+  display: -moz-grid-line;
+  -moz-binding: url("chrome://mozapps/content/extensions/setting.xml#setting-bool");
+}
+
+setting[type="bool"][localized="true"] {
+  display: -moz-grid-line;
+  -moz-binding: url("chrome://mozapps/content/extensions/setting.xml#setting-localized-bool");
+}
+
+setting[type="bool"]:not([learnmore]) .preferences-learnmore,
+setting[type="boolint"]:not([learnmore]) .preferences-learnmore {
+  visibility: collapse;
+}
+
+setting[type="boolint"] {
+  display: -moz-grid-line;
+  -moz-binding: url("chrome://mozapps/content/extensions/setting.xml#setting-boolint");
+}
+
+setting[type="integer"] {
+  display: -moz-grid-line;
+  -moz-binding: url("chrome://mozapps/content/extensions/setting.xml#setting-integer");
+}
+
+setting[type="integer"]:not([size]) textbox {
+  -moz-box-flex: 1;
+}
+
+setting[type="control"] {
+  display: -moz-grid-line;
+  -moz-binding: url("chrome://mozapps/content/extensions/setting.xml#setting-control");
+}
+
+setting[type="string"] {
+  display: -moz-grid-line;
+  -moz-binding: url("chrome://mozapps/content/extensions/setting.xml#setting-string");
+}
+
+setting[type="color"] {
+  display: -moz-grid-line;
+  -moz-binding: url("chrome://mozapps/content/extensions/setting.xml#setting-color");
+}
+
+setting[type="file"],
+setting[type="directory"] {
+  display: -moz-grid-line;
+  -moz-binding: url("chrome://mozapps/content/extensions/setting.xml#setting-path");
+}
+
+setting[type="radio"],
+setting[type="menulist"] {
+  display: -moz-grid-line;
+  -moz-binding: url("chrome://mozapps/content/extensions/setting.xml#setting-multi");
+}
+
+#addonitem-popup > menuitem[disabled="true"] {
+  display: none;
+}
+
+#addonitem-popup[addontype="theme"] > #menuitem_enableItem,
+#addonitem-popup[addontype="theme"] > #menuitem_disableItem,
+#addonitem-popup:not([addontype="theme"]) > #menuitem_enableTheme,
+#addonitem-popup:not([addontype="theme"]) > #menuitem_disableTheme {
+  display: none;
+}
+
+#show-disabled-unsigned-extensions .button-text {
+  margin-inline-start: 3px !important;
+  margin-inline-end: 2px !important;
+}
+
+#header-searching:not([active]) {
+  visibility: hidden;
+}
+
+#search-list[local="false"]  > .addon[remote="false"],
+#search-list[remote="false"] > .addon[remote="true"] {
+  visibility: collapse;
+}
+
+#detail-view {
+  overflow: auto;
+}
+
+.addon:not([notification="warning"]) .warning,
+.addon:not([notification="error"]) .error,
+.addon:not([notification="info"]) .info,
+.addon:not([pending]) .pending,
+.addon:not([upgrade="true"]) .update-postfix,
+.addon[active="true"] .disabled-postfix,
+.addon[pending="install"] .update-postfix,
+.addon[pending="install"] .disabled-postfix,
+#detail-view:not([notification="warning"]) .warning,
+#detail-view:not([notification="error"]) .error,
+#detail-view:not([notification="info"]) .info,
+#detail-view:not([pending]) .pending,
+#detail-view:not([upgrade="true"]) .update-postfix,
+#detail-view[active="true"] .disabled-postfix,
+#detail-view[loading] .detail-view-container,
+#detail-view:not([loading]) .alert-container,
+.detail-row:not([value]),
+#search-list[remote="false"] #search-allresults-link {
+  display: none;
+}
+
+#addons-page:not([warning]) #list-view > .global-warning-container {
+  display: none;
+}
+#addon-list .date-updated {
+  display: none;
+}
+
+.view-pane:not(#updates-view) .addon .relnotes-toggle,
+.view-pane:not(#updates-view) .addon .include-update,
+#updates-view:not([updatetype="available"]) .addon .include-update,
+#updates-view[updatetype="available"] .addon .update-available-notice {
+  display: none;
+}
+
+#addons-page:not([warning]) .global-warning,
+#addons-page:not([warning="safemode"]) .global-warning-safemode,
+#addons-page:not([warning="checkcompatibility"]) .global-warning-checkcompatibility,
+#addons-page:not([warning="updatesecurity"]) .global-warning-updatesecurity {
+  display: none;
+}
+
+/* Plugins aren't yet disabled by safemode (bug 342333),
+   so don't show that warning when viewing plugins. */
+#addons-page[warning="safemode"] .view-pane[type="plugin"] .global-warning-container,
+#addons-page[warning="safemode"] #detail-view[loading="true"] .global-warning {
+  display: none;
+}
+
+#addons-page .view-pane:not([type="plugin"]) #plugindeprecation-notice {
+  display: none;
+}
+
+#addons-page .view-pane:not([type="experiment"]) .experiment-info-container {
+  display: none;
+}
+
+.addon .relnotes {
+  -moz-user-select: text;
+}
+#detail-name, #detail-desc, #detail-fulldesc {
+  -moz-user-select: text;
+}
+
+/* Make sure we're not animating hidden images. See bug 623739. */
+#view-port:not([selectedIndex="0"]) #discover-view .loading,
+#discover-view:not([selectedIndex="0"]) .loading {
+  display: none;
+}
+
+/* Elements in unselected richlistitems cannot be focused */
+richlistitem:not([selected]) * {
+  -moz-user-focus: ignore;
+}
+
+#header-search {
+  width: 22em;
+}
+
+#header-utils-btn {
+  -moz-user-focus: normal;
+}
+
+.discover-button[disabled="true"] {
+  display: none;
+}
+
+#experiments-learn-more[disabled="true"] {
+  display: none;
+}
+
+#experiments-change-telemetry[disabled="true"] {
+  display: none;
+}
+
+.view-pane[type="experiment"] .error,
+.view-pane[type="experiment"] .warning,
+.view-pane[type="experiment"] .addon:not([pending="uninstall"]) .pending,
+.view-pane[type="experiment"] .disabled-postfix,
+.view-pane[type="experiment"] .update-postfix,
+.view-pane[type="experiment"] .addon-control.enable,
+.view-pane[type="experiment"] .addon-control.disable,
+#detail-view[type="experiment"] .alert-container,
+#detail-view[type="experiment"] #detail-version,
+#detail-view[type="experiment"] #detail-creator,
+#detail-view[type="experiment"] #detail-enable-btn,
+#detail-view[type="experiment"] #detail-disable-btn {
+  display: none;
+}
+
+.view-pane:not([type="experiment"]) .experiment-container,
+.view-pane:not([type="experiment"]) #detail-experiment-container {
+  display: none;
+}
+
+.addon[type="experiment"][status="installing"] .experiment-time,
+.addon[type="experiment"][status="installing"] .experiment-state {
+  display: none;
+}
diff --git a/toolkit/mozapps/webextensions/content/extensions.js b/toolkit/mozapps/webextensions/content/extensions.js
new file mode 100644
index 000000000..56158d9c6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/extensions.js
@@ -0,0 +1,3915 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../../content/contentAreaUtils.js */
+/* globals XMLStylesheetProcessingInstruction*/
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+var Cr = Components.results;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/DownloadUtils.jsm");
+Cu.import("resource://gre/modules/AddonManager.jsm");
+Cu.import("resource://gre/modules/addons/AddonRepository.jsm");
+
+const CONSTANTS = {};
+Cu.import("resource://gre/modules/addons/AddonConstants.jsm", CONSTANTS);
+const SIGNING_REQUIRED = CONSTANTS.REQUIRE_SIGNING ?
+                         true :
+                         Services.prefs.getBoolPref("xpinstall.signatures.required");
+
+XPCOMUtils.defineLazyModuleGetter(this, "PluralForm",
+                                  "resource://gre/modules/PluralForm.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Preferences",
+                                  "resource://gre/modules/Preferences.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "Experiments",
+  "resource:///modules/experiments/Experiments.jsm");
+
+const PREF_DISCOVERURL = "extensions.webservice.discoverURL";
+const PREF_DISCOVER_ENABLED = "extensions.getAddons.showPane";
+const PREF_XPI_ENABLED = "xpinstall.enabled";
+const PREF_MAXRESULTS = "extensions.getAddons.maxResults";
+const PREF_GETADDONS_CACHE_ENABLED = "extensions.getAddons.cache.enabled";
+const PREF_GETADDONS_CACHE_ID_ENABLED = "extensions.%ID%.getAddons.cache.enabled";
+const PREF_UI_TYPE_HIDDEN = "extensions.ui.%TYPE%.hidden";
+const PREF_UI_LASTCATEGORY = "extensions.ui.lastCategory";
+
+const LOADING_MSG_DELAY = 100;
+
+const SEARCH_SCORE_MULTIPLIER_NAME = 2;
+const SEARCH_SCORE_MULTIPLIER_DESCRIPTION = 2;
+
+// Use integers so search scores are sortable by nsIXULSortService
+const SEARCH_SCORE_MATCH_WHOLEWORD = 10;
+const SEARCH_SCORE_MATCH_WORDBOUNDRY = 6;
+const SEARCH_SCORE_MATCH_SUBSTRING = 3;
+
+const UPDATES_RECENT_TIMESPAN = 2 * 24 * 3600000; // 2 days (in milliseconds)
+const UPDATES_RELEASENOTES_TRANSFORMFILE = "chrome://mozapps/content/extensions/updateinfo.xsl";
+
+const XMLURI_PARSE_ERROR = "http://www.mozilla.org/newlayout/xml/parsererror.xml"
+
+var gViewDefault = "addons://discover/";
+
+var gStrings = {};
+XPCOMUtils.defineLazyServiceGetter(gStrings, "bundleSvc",
+                                   "@mozilla.org/intl/stringbundle;1",
+                                   "nsIStringBundleService");
+
+XPCOMUtils.defineLazyGetter(gStrings, "brand", function() {
+  return this.bundleSvc.createBundle("chrome://branding/locale/brand.properties");
+});
+XPCOMUtils.defineLazyGetter(gStrings, "ext", function() {
+  return this.bundleSvc.createBundle("chrome://mozapps/locale/extensions/extensions.properties");
+});
+XPCOMUtils.defineLazyGetter(gStrings, "dl", function() {
+  return this.bundleSvc.createBundle("chrome://mozapps/locale/downloads/downloads.properties");
+});
+
+XPCOMUtils.defineLazyGetter(gStrings, "brandShortName", function() {
+  return this.brand.GetStringFromName("brandShortName");
+});
+XPCOMUtils.defineLazyGetter(gStrings, "appVersion", function() {
+  return Services.appinfo.version;
+});
+
+document.addEventListener("load", initialize, true);
+window.addEventListener("unload", shutdown, false);
+
+class MessageDispatcher {
+  constructor(target) {
+    this.listeners = new Map();
+    this.target = target;
+  }
+
+  addMessageListener(name, handler) {
+    if (!this.listeners.has(name)) {
+      this.listeners.set(name, new Set());
+    }
+
+    this.listeners.get(name).add(handler);
+  }
+
+  removeMessageListener(name, handler) {
+    if (this.listeners.has(name)) {
+      this.listeners.get(name).delete(handler);
+    }
+  }
+
+  sendAsyncMessage(name, data) {
+    for (let handler of this.listeners.get(name) || new Set()) {
+      Promise.resolve().then(() => {
+        handler.receiveMessage({
+          name,
+          data,
+          target: this.target,
+        });
+      });
+    }
+  }
+}
+
+/**
+ * A mock FrameMessageManager global to allow frame scripts to run in
+ * non-top-level, non-remote <browser>s as if they were top-level or
+ * remote.
+ *
+ * @param {Element} browser
+ *        A XUL <browser> element.
+ */
+class FakeFrameMessageManager {
+  constructor(browser) {
+    let dispatcher = new MessageDispatcher(browser);
+    let frameDispatcher = new MessageDispatcher(null);
+
+    this.sendAsyncMessage = frameDispatcher.sendAsyncMessage.bind(frameDispatcher);
+    this.addMessageListener = dispatcher.addMessageListener.bind(dispatcher);
+    this.removeMessageListener = dispatcher.removeMessageListener.bind(dispatcher);
+
+    this.frame = {
+      get content() {
+        return browser.contentWindow;
+      },
+
+      get docShell() {
+        return browser.docShell;
+      },
+
+      addEventListener: browser.addEventListener.bind(browser),
+      removeEventListener: browser.removeEventListener.bind(browser),
+
+      sendAsyncMessage: dispatcher.sendAsyncMessage.bind(dispatcher),
+      addMessageListener: frameDispatcher.addMessageListener.bind(frameDispatcher),
+      removeMessageListener: frameDispatcher.removeMessageListener.bind(frameDispatcher),
+    }
+  }
+
+  loadFrameScript(url) {
+    Services.scriptloader.loadSubScript(url, Object.create(this.frame));
+  }
+}
+
+var gPendingInitializations = 1;
+Object.defineProperty(this, "gIsInitializing", {
+  get: () => gPendingInitializations > 0
+});
+
+function initialize(event) {
+  // XXXbz this listener gets _all_ load events for all nodes in the
+  // document... but relies on not being called "too early".
+  if (event.target instanceof XMLStylesheetProcessingInstruction) {
+    return;
+  }
+  document.removeEventListener("load", initialize, true);
+
+  let globalCommandSet = document.getElementById("globalCommandSet");
+  globalCommandSet.addEventListener("command", function(event) {
+    gViewController.doCommand(event.target.id);
+  });
+
+  let viewCommandSet = document.getElementById("viewCommandSet");
+  viewCommandSet.addEventListener("commandupdate", function(event) {
+    gViewController.updateCommands();
+  });
+  viewCommandSet.addEventListener("command", function(event) {
+    gViewController.doCommand(event.target.id);
+  });
+
+  let detailScreenshot = document.getElementById("detail-screenshot");
+  detailScreenshot.addEventListener("load", function(event) {
+    this.removeAttribute("loading");
+  });
+  detailScreenshot.addEventListener("error", function(event) {
+    this.setAttribute("loading", "error");
+  });
+
+  let addonPage = document.getElementById("addons-page");
+  addonPage.addEventListener("dragenter", function(event) {
+    gDragDrop.onDragOver(event);
+  });
+  addonPage.addEventListener("dragover", function(event) {
+    gDragDrop.onDragOver(event);
+  });
+  addonPage.addEventListener("drop", function(event) {
+    gDragDrop.onDrop(event);
+  });
+  addonPage.addEventListener("keypress", function(event) {
+    gHeader.onKeyPress(event);
+  });
+
+  if (!isDiscoverEnabled()) {
+    gViewDefault = "addons://list/extension";
+  }
+
+  gViewController.initialize();
+  gCategories.initialize();
+  gHeader.initialize();
+  gEventManager.initialize();
+  Services.obs.addObserver(sendEMPong, "EM-ping", false);
+  Services.obs.notifyObservers(window, "EM-loaded", "");
+
+  // If the initial view has already been selected (by a call to loadView from
+  // the above notifications) then bail out now
+  if (gViewController.initialViewSelected)
+    return;
+
+  // If there is a history state to restore then use that
+  if (window.history.state) {
+    gViewController.updateState(window.history.state);
+    return;
+  }
+
+  // Default to the last selected category
+  var view = gCategories.node.value;
+
+  // Allow passing in a view through the window arguments
+  if ("arguments" in window && window.arguments.length > 0 &&
+      window.arguments[0] !== null && "view" in window.arguments[0]) {
+    view = window.arguments[0].view;
+  }
+
+  gViewController.loadInitialView(view);
+}
+
+function notifyInitialized() {
+  if (!gIsInitializing)
+    return;
+
+  gPendingInitializations--;
+  if (!gIsInitializing) {
+    var event = document.createEvent("Events");
+    event.initEvent("Initialized", true, true);
+    document.dispatchEvent(event);
+  }
+}
+
+function shutdown() {
+  gCategories.shutdown();
+  gSearchView.shutdown();
+  gEventManager.shutdown();
+  gViewController.shutdown();
+  Services.obs.removeObserver(sendEMPong, "EM-ping");
+}
+
+function sendEMPong(aSubject, aTopic, aData) {
+  Services.obs.notifyObservers(window, "EM-pong", "");
+}
+
+// Used by external callers to load a specific view into the manager
+function loadView(aViewId) {
+  if (!gViewController.initialViewSelected) {
+    // The caller opened the window and immediately loaded the view so it
+    // should be the initial history entry
+
+    gViewController.loadInitialView(aViewId);
+  } else {
+    gViewController.loadView(aViewId);
+  }
+}
+
+function isCorrectlySigned(aAddon) {
+  // Add-ons without an "isCorrectlySigned" property are correctly signed as
+  // they aren't the correct type for signing.
+  return aAddon.isCorrectlySigned !== false;
+}
+
+function isDiscoverEnabled() {
+  if (Services.prefs.getPrefType(PREF_DISCOVERURL) == Services.prefs.PREF_INVALID)
+    return false;
+
+  try {
+    if (!Services.prefs.getBoolPref(PREF_DISCOVER_ENABLED))
+      return false;
+  } catch (e) {}
+
+  try {
+    if (!Services.prefs.getBoolPref(PREF_XPI_ENABLED))
+      return false;
+  } catch (e) {}
+
+  return true;
+}
+
+function getExperimentEndDate(aAddon) {
+  if (!("@mozilla.org/browser/experiments-service;1" in Cc)) {
+    return 0;
+  }
+
+  if (!aAddon.isActive) {
+    return aAddon.endDate;
+  }
+
+  let experiment = Experiments.instance().getActiveExperiment();
+  if (!experiment) {
+    return 0;
+  }
+
+  return experiment.endDate;
+}
+
+/**
+ * Obtain the main DOMWindow for the current context.
+ */
+function getMainWindow() {
+  return window.QueryInterface(Ci.nsIInterfaceRequestor)
+               .getInterface(Ci.nsIWebNavigation)
+               .QueryInterface(Ci.nsIDocShellTreeItem)
+               .rootTreeItem
+               .QueryInterface(Ci.nsIInterfaceRequestor)
+               .getInterface(Ci.nsIDOMWindow);
+}
+
+function getBrowserElement() {
+  return window.QueryInterface(Ci.nsIInterfaceRequestor)
+               .getInterface(Ci.nsIDocShell)
+               .chromeEventHandler;
+}
+
+/**
+ * Obtain the DOMWindow that can open a preferences pane.
+ *
+ * This is essentially "get the browser chrome window" with the added check
+ * that the supposed browser chrome window is capable of opening a preferences
+ * pane.
+ *
+ * This may return null if we can't find the browser chrome window.
+ */
+function getMainWindowWithPreferencesPane() {
+  let mainWindow = getMainWindow();
+  if (mainWindow && "openAdvancedPreferences" in mainWindow) {
+    return mainWindow;
+  }
+  return null;
+}
+
+/**
+ * A wrapper around the HTML5 session history service that allows the browser
+ * back/forward controls to work within the manager
+ */
+var HTML5History = {
+  get index() {
+    return window.QueryInterface(Ci.nsIInterfaceRequestor)
+                 .getInterface(Ci.nsIWebNavigation)
+                 .sessionHistory.index;
+  },
+
+  get canGoBack() {
+    return window.QueryInterface(Ci.nsIInterfaceRequestor)
+                 .getInterface(Ci.nsIWebNavigation)
+                 .canGoBack;
+  },
+
+  get canGoForward() {
+    return window.QueryInterface(Ci.nsIInterfaceRequestor)
+                 .getInterface(Ci.nsIWebNavigation)
+                 .canGoForward;
+  },
+
+  back: function() {
+    window.history.back();
+    gViewController.updateCommand("cmd_back");
+    gViewController.updateCommand("cmd_forward");
+  },
+
+  forward: function() {
+    window.history.forward();
+    gViewController.updateCommand("cmd_back");
+    gViewController.updateCommand("cmd_forward");
+  },
+
+  pushState: function(aState) {
+    window.history.pushState(aState, document.title);
+  },
+
+  replaceState: function(aState) {
+    window.history.replaceState(aState, document.title);
+  },
+
+  popState: function() {
+    function onStatePopped(aEvent) {
+      window.removeEventListener("popstate", onStatePopped, true);
+      // TODO To ensure we can't go forward again we put an additional entry
+      // for the current state into the history. Ideally we would just strip
+      // the history but there doesn't seem to be a way to do that. Bug 590661
+      window.history.pushState(aEvent.state, document.title);
+    }
+    window.addEventListener("popstate", onStatePopped, true);
+    window.history.back();
+    gViewController.updateCommand("cmd_back");
+    gViewController.updateCommand("cmd_forward");
+  }
+};
+
+/**
+ * A wrapper around a fake history service
+ */
+var FakeHistory = {
+  pos: 0,
+  states: [null],
+
+  get index() {
+    return this.pos;
+  },
+
+  get canGoBack() {
+    return this.pos > 0;
+  },
+
+  get canGoForward() {
+    return (this.pos + 1) < this.states.length;
+  },
+
+  back: function() {
+    if (this.pos == 0)
+      throw Components.Exception("Cannot go back from this point");
+
+    this.pos--;
+    gViewController.updateState(this.states[this.pos]);
+    gViewController.updateCommand("cmd_back");
+    gViewController.updateCommand("cmd_forward");
+  },
+
+  forward: function() {
+    if ((this.pos + 1) >= this.states.length)
+      throw Components.Exception("Cannot go forward from this point");
+
+    this.pos++;
+    gViewController.updateState(this.states[this.pos]);
+    gViewController.updateCommand("cmd_back");
+    gViewController.updateCommand("cmd_forward");
+  },
+
+  pushState: function(aState) {
+    this.pos++;
+    this.states.splice(this.pos, this.states.length);
+    this.states.push(aState);
+  },
+
+  replaceState: function(aState) {
+    this.states[this.pos] = aState;
+  },
+
+  popState: function() {
+    if (this.pos == 0)
+      throw Components.Exception("Cannot popState from this view");
+
+    this.states.splice(this.pos, this.states.length);
+    this.pos--;
+
+    gViewController.updateState(this.states[this.pos]);
+    gViewController.updateCommand("cmd_back");
+    gViewController.updateCommand("cmd_forward");
+  }
+};
+
+// If the window has a session history then use the HTML5 History wrapper
+// otherwise use our fake history implementation
+if (window.QueryInterface(Ci.nsIInterfaceRequestor)
+          .getInterface(Ci.nsIWebNavigation)
+          .sessionHistory) {
+  var gHistory = HTML5History;
+}
+else {
+  gHistory = FakeHistory;
+}
+
+var gEventManager = {
+  _listeners: {},
+  _installListeners: [],
+
+  initialize: function() {
+    const ADDON_EVENTS = ["onEnabling", "onEnabled", "onDisabling",
+                          "onDisabled", "onUninstalling", "onUninstalled",
+                          "onInstalled", "onOperationCancelled",
+                          "onUpdateAvailable", "onUpdateFinished",
+                          "onCompatibilityUpdateAvailable",
+                          "onPropertyChanged"];
+    for (let evt of ADDON_EVENTS) {
+      let event = evt;
+      this[event] = (...aArgs) => this.delegateAddonEvent(event, aArgs);
+    }
+
+    const INSTALL_EVENTS = ["onNewInstall", "onDownloadStarted",
+                            "onDownloadEnded", "onDownloadFailed",
+                            "onDownloadProgress", "onDownloadCancelled",
+                            "onInstallStarted", "onInstallEnded",
+                            "onInstallFailed", "onInstallCancelled",
+                            "onExternalInstall"];
+    for (let evt of INSTALL_EVENTS) {
+      let event = evt;
+      this[event] = (...aArgs) => this.delegateInstallEvent(event, aArgs);
+    }
+
+    AddonManager.addManagerListener(this);
+    AddonManager.addInstallListener(this);
+    AddonManager.addAddonListener(this);
+
+    this.refreshGlobalWarning();
+    this.refreshAutoUpdateDefault();
+
+    var contextMenu = document.getElementById("addonitem-popup");
+    contextMenu.addEventListener("popupshowing", function() {
+      var addon = gViewController.currentViewObj.getSelectedAddon();
+      contextMenu.setAttribute("addontype", addon.type);
+
+      var menuSep = document.getElementById("addonitem-menuseparator");
+      var countMenuItemsBeforeSep = 0;
+      for (let child of contextMenu.children) {
+        if (child == menuSep) {
+          break;
+        }
+        if (child.nodeName == "menuitem" &&
+          gViewController.isCommandEnabled(child.command)) {
+            countMenuItemsBeforeSep++;
+        }
+      }
+
+      // Hide the separator if there are no visible menu items before it
+      menuSep.hidden = (countMenuItemsBeforeSep == 0);
+
+    }, false);
+
+    let addonTooltip = document.getElementById("addonitem-tooltip");
+    addonTooltip.addEventListener("popupshowing", function() {
+      let addonItem = addonTooltip.triggerNode;
+      // The way the test triggers the tooltip the richlistitem is the
+      // tooltipNode but in normal use it is the anonymous node. This allows
+      // any case
+      if (addonItem.localName != "richlistitem")
+        addonItem = document.getBindingParent(addonItem);
+
+      let tiptext = addonItem.getAttribute("name");
+
+      if (addonItem.mAddon) {
+        if (shouldShowVersionNumber(addonItem.mAddon)) {
+          tiptext += " " + (addonItem.hasAttribute("upgrade") ? addonItem.mManualUpdate.version
+                                                              : addonItem.mAddon.version);
+        }
+      }
+      else if (shouldShowVersionNumber(addonItem.mInstall)) {
+        tiptext += " " + addonItem.mInstall.version;
+      }
+
+      addonTooltip.label = tiptext;
+    }, false);
+  },
+
+  shutdown: function() {
+    AddonManager.removeManagerListener(this);
+    AddonManager.removeInstallListener(this);
+    AddonManager.removeAddonListener(this);
+  },
+
+  registerAddonListener: function(aListener, aAddonId) {
+    if (!(aAddonId in this._listeners))
+      this._listeners[aAddonId] = [];
+    else if (this._listeners[aAddonId].indexOf(aListener) != -1)
+      return;
+    this._listeners[aAddonId].push(aListener);
+  },
+
+  unregisterAddonListener: function(aListener, aAddonId) {
+    if (!(aAddonId in this._listeners))
+      return;
+    var index = this._listeners[aAddonId].indexOf(aListener);
+    if (index == -1)
+      return;
+    this._listeners[aAddonId].splice(index, 1);
+  },
+
+  registerInstallListener: function(aListener) {
+    if (this._installListeners.indexOf(aListener) != -1)
+      return;
+    this._installListeners.push(aListener);
+  },
+
+  unregisterInstallListener: function(aListener) {
+    var i = this._installListeners.indexOf(aListener);
+    if (i == -1)
+      return;
+    this._installListeners.splice(i, 1);
+  },
+
+  delegateAddonEvent: function(aEvent, aParams) {
+    var addon = aParams.shift();
+    if (!(addon.id in this._listeners))
+      return;
+
+    var listeners = this._listeners[addon.id];
+    for (let listener of listeners) {
+      if (!(aEvent in listener))
+        continue;
+      try {
+        listener[aEvent].apply(listener, aParams);
+      } catch (e) {
+        // this shouldn't be fatal
+        Cu.reportError(e);
+      }
+    }
+  },
+
+  delegateInstallEvent: function(aEvent, aParams) {
+    var existingAddon = aEvent == "onExternalInstall" ? aParams[1] : aParams[0].existingAddon;
+    // If the install is an update then send the event to all listeners
+    // registered for the existing add-on
+    if (existingAddon)
+      this.delegateAddonEvent(aEvent, [existingAddon].concat(aParams));
+
+    for (let listener of this._installListeners) {
+      if (!(aEvent in listener))
+        continue;
+      try {
+        listener[aEvent].apply(listener, aParams);
+      } catch (e) {
+        // this shouldn't be fatal
+        Cu.reportError(e);
+      }
+    }
+  },
+
+  refreshGlobalWarning: function() {
+    var page = document.getElementById("addons-page");
+
+    if (Services.appinfo.inSafeMode) {
+      page.setAttribute("warning", "safemode");
+      return;
+    }
+
+    if (AddonManager.checkUpdateSecurityDefault &&
+        !AddonManager.checkUpdateSecurity) {
+      page.setAttribute("warning", "updatesecurity");
+      return;
+    }
+
+    if (!AddonManager.checkCompatibility) {
+      page.setAttribute("warning", "checkcompatibility");
+      return;
+    }
+
+    page.removeAttribute("warning");
+  },
+
+  refreshAutoUpdateDefault: function() {
+    var updateEnabled = AddonManager.updateEnabled;
+    var autoUpdateDefault = AddonManager.autoUpdateDefault;
+
+    // The checkbox needs to reflect that both prefs need to be true
+    // for updates to be checked for and applied automatically
+    document.getElementById("utils-autoUpdateDefault")
+            .setAttribute("checked", updateEnabled && autoUpdateDefault);
+
+    document.getElementById("utils-resetAddonUpdatesToAutomatic").hidden = !autoUpdateDefault;
+    document.getElementById("utils-resetAddonUpdatesToManual").hidden = autoUpdateDefault;
+  },
+
+  onCompatibilityModeChanged: function() {
+    this.refreshGlobalWarning();
+  },
+
+  onCheckUpdateSecurityChanged: function() {
+    this.refreshGlobalWarning();
+  },
+
+  onUpdateModeChanged: function() {
+    this.refreshAutoUpdateDefault();
+  }
+};
+
+
+var gViewController = {
+  viewPort: null,
+  currentViewId: "",
+  currentViewObj: null,
+  currentViewRequest: 0,
+  viewObjects: {},
+  viewChangeCallback: null,
+  initialViewSelected: false,
+  lastHistoryIndex: -1,
+
+  initialize: function() {
+    this.viewPort = document.getElementById("view-port");
+    this.headeredViews = document.getElementById("headered-views");
+    this.headeredViewsDeck = document.getElementById("headered-views-content");
+
+    this.viewObjects["search"] = gSearchView;
+    this.viewObjects["discover"] = gDiscoverView;
+    this.viewObjects["list"] = gListView;
+    this.viewObjects["detail"] = gDetailView;
+    this.viewObjects["updates"] = gUpdatesView;
+
+    for (let type in this.viewObjects) {
+      let view = this.viewObjects[type];
+      view.initialize();
+    }
+
+    window.controllers.appendController(this);
+
+    window.addEventListener("popstate", function(e) {
+                              gViewController.updateState(e.state);
+                            },
+                            false);
+  },
+
+  shutdown: function() {
+    if (this.currentViewObj)
+      this.currentViewObj.hide();
+    this.currentViewRequest = 0;
+
+    for (let type in this.viewObjects) {
+      let view = this.viewObjects[type];
+      if ("shutdown" in view) {
+        try {
+          view.shutdown();
+        } catch (e) {
+          // this shouldn't be fatal
+          Cu.reportError(e);
+        }
+      }
+    }
+
+    window.controllers.removeController(this);
+  },
+
+  updateState: function(state) {
+    try {
+      this.loadViewInternal(state.view, state.previousView, state);
+      this.lastHistoryIndex = gHistory.index;
+    }
+    catch (e) {
+      // The attempt to load the view failed, try moving further along history
+      if (this.lastHistoryIndex > gHistory.index) {
+        if (gHistory.canGoBack)
+          gHistory.back();
+        else
+          gViewController.replaceView(gViewDefault);
+      } else if (gHistory.canGoForward) {
+        gHistory.forward();
+      } else {
+        gViewController.replaceView(gViewDefault);
+      }
+    }
+  },
+
+  parseViewId: function(aViewId) {
+    var matchRegex = /^addons:\/\/([^\/]+)\/(.*)$/;
+    var [, viewType, viewParam] = aViewId.match(matchRegex) || [];
+    return {type: viewType, param: decodeURIComponent(viewParam)};
+  },
+
+  get isLoading() {
+    return !this.currentViewObj || this.currentViewObj.node.hasAttribute("loading");
+  },
+
+  loadView: function(aViewId) {
+    var isRefresh = false;
+    if (aViewId == this.currentViewId) {
+      if (this.isLoading)
+        return;
+      if (!("refresh" in this.currentViewObj))
+        return;
+      if (!this.currentViewObj.canRefresh())
+        return;
+      isRefresh = true;
+    }
+
+    var state = {
+      view: aViewId,
+      previousView: this.currentViewId
+    };
+    if (!isRefresh) {
+      gHistory.pushState(state);
+      this.lastHistoryIndex = gHistory.index;
+    }
+    this.loadViewInternal(aViewId, this.currentViewId, state);
+  },
+
+  // Replaces the existing view with a new one, rewriting the current history
+  // entry to match.
+  replaceView: function(aViewId) {
+    if (aViewId == this.currentViewId)
+      return;
+
+    var state = {
+      view: aViewId,
+      previousView: null
+    };
+    gHistory.replaceState(state);
+    this.loadViewInternal(aViewId, null, state);
+  },
+
+  loadInitialView: function(aViewId) {
+    var state = {
+      view: aViewId,
+      previousView: null
+    };
+    gHistory.replaceState(state);
+
+    this.loadViewInternal(aViewId, null, state);
+    this.initialViewSelected = true;
+    notifyInitialized();
+  },
+
+  get displayedView() {
+    if (this.viewPort.selectedPanel == this.headeredViews) {
+      return this.headeredViewsDeck.selectedPanel;
+    }
+    return this.viewPort.selectedPanel;
+  },
+
+  set displayedView(view) {
+    let node = view.node;
+    if (node.parentNode == this.headeredViewsDeck) {
+      this.headeredViewsDeck.selectedPanel = node;
+      this.viewPort.selectedPanel = this.headeredViews;
+    } else {
+      this.viewPort.selectedPanel = node;
+    }
+  },
+
+  loadViewInternal: function(aViewId, aPreviousView, aState) {
+    var view = this.parseViewId(aViewId);
+
+    if (!view.type || !(view.type in this.viewObjects))
+      throw Components.Exception("Invalid view: " + view.type);
+
+    var viewObj = this.viewObjects[view.type];
+    if (!viewObj.node)
+      throw Components.Exception("Root node doesn't exist for '" + view.type + "' view");
+
+    if (this.currentViewObj && aViewId != aPreviousView) {
+      try {
+        let canHide = this.currentViewObj.hide();
+        if (canHide === false)
+          return;
+        this.displayedView.removeAttribute("loading");
+      } catch (e) {
+        // this shouldn't be fatal
+        Cu.reportError(e);
+      }
+    }
+
+    gCategories.select(aViewId, aPreviousView);
+
+    this.currentViewId = aViewId;
+    this.currentViewObj = viewObj;
+
+    this.displayedView = this.currentViewObj;
+    this.currentViewObj.node.setAttribute("loading", "true");
+    this.currentViewObj.node.focus();
+
+    if (aViewId == aPreviousView)
+      this.currentViewObj.refresh(view.param, ++this.currentViewRequest, aState);
+    else
+      this.currentViewObj.show(view.param, ++this.currentViewRequest, aState);
+  },
+
+  // Moves back in the document history and removes the current history entry
+  popState: function(aCallback) {
+    this.viewChangeCallback = aCallback;
+    gHistory.popState();
+  },
+
+  notifyViewChanged: function() {
+    this.displayedView.removeAttribute("loading");
+
+    if (this.viewChangeCallback) {
+      this.viewChangeCallback();
+      this.viewChangeCallback = null;
+    }
+
+    var event = document.createEvent("Events");
+    event.initEvent("ViewChanged", true, true);
+    this.currentViewObj.node.dispatchEvent(event);
+  },
+
+  commands: {
+    cmd_back: {
+      isEnabled: function() {
+        return gHistory.canGoBack;
+      },
+      doCommand: function() {
+        gHistory.back();
+      }
+    },
+
+    cmd_forward: {
+      isEnabled: function() {
+        return gHistory.canGoForward;
+      },
+      doCommand: function() {
+        gHistory.forward();
+      }
+    },
+
+    cmd_focusSearch: {
+      isEnabled: () => true,
+      doCommand: function() {
+        gHeader.focusSearchBox();
+      }
+    },
+
+    cmd_restartApp: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        let cancelQuit = Cc["@mozilla.org/supports-PRBool;1"].
+                         createInstance(Ci.nsISupportsPRBool);
+        Services.obs.notifyObservers(cancelQuit, "quit-application-requested",
+                                     "restart");
+        if (cancelQuit.data)
+          return; // somebody canceled our quit request
+
+        let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"].
+                         getService(Ci.nsIAppStartup);
+        appStartup.quit(Ci.nsIAppStartup.eAttemptQuit |  Ci.nsIAppStartup.eRestart);
+      }
+    },
+
+    cmd_enableCheckCompatibility: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        AddonManager.checkCompatibility = true;
+      }
+    },
+
+    cmd_enableUpdateSecurity: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        AddonManager.checkUpdateSecurity = true;
+      }
+    },
+
+    cmd_toggleAutoUpdateDefault: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        if (!AddonManager.updateEnabled || !AddonManager.autoUpdateDefault) {
+          // One or both of the prefs is false, i.e. the checkbox is not checked.
+          // Now toggle both to true. If the user wants us to auto-update
+          // add-ons, we also need to auto-check for updates.
+          AddonManager.updateEnabled = true;
+          AddonManager.autoUpdateDefault = true;
+        } else {
+          // Both prefs are true, i.e. the checkbox is checked.
+          // Toggle the auto pref to false, but don't touch the enabled check.
+          AddonManager.autoUpdateDefault = false;
+        }
+      }
+    },
+
+    cmd_resetAddonAutoUpdate: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        AddonManager.getAllAddons(function(aAddonList) {
+          for (let addon of aAddonList) {
+            if ("applyBackgroundUpdates" in addon)
+              addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DEFAULT;
+          }
+        });
+      }
+    },
+
+    cmd_goToDiscoverPane: {
+      isEnabled: function() {
+        return gDiscoverView.enabled;
+      },
+      doCommand: function() {
+        gViewController.loadView("addons://discover/");
+      }
+    },
+
+    cmd_goToRecentUpdates: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        gViewController.loadView("addons://updates/recent");
+      }
+    },
+
+    cmd_goToAvailableUpdates: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        gViewController.loadView("addons://updates/available");
+      }
+    },
+
+    cmd_showItemDetails: {
+      isEnabled: function(aAddon) {
+        return !!aAddon && (gViewController.currentViewObj != gDetailView);
+      },
+      doCommand: function(aAddon, aScrollToPreferences) {
+        gViewController.loadView("addons://detail/" +
+                                 encodeURIComponent(aAddon.id) +
+                                 (aScrollToPreferences ? "/preferences" : ""));
+      }
+    },
+
+    cmd_findAllUpdates: {
+      inProgress: false,
+      isEnabled: function() {
+        return !this.inProgress;
+      },
+      doCommand: function() {
+        this.inProgress = true;
+        gViewController.updateCommand("cmd_findAllUpdates");
+        document.getElementById("updates-noneFound").hidden = true;
+        document.getElementById("updates-progress").hidden = false;
+        document.getElementById("updates-manualUpdatesFound-btn").hidden = true;
+
+        var pendingChecks = 0;
+        var numUpdated = 0;
+        var numManualUpdates = 0;
+        var restartNeeded = false;
+
+        let updateStatus = () => {
+          if (pendingChecks > 0)
+            return;
+
+          this.inProgress = false;
+          gViewController.updateCommand("cmd_findAllUpdates");
+          document.getElementById("updates-progress").hidden = true;
+          gUpdatesView.maybeRefresh();
+
+          if (numManualUpdates > 0 && numUpdated == 0) {
+            document.getElementById("updates-manualUpdatesFound-btn").hidden = false;
+            return;
+          }
+
+          if (numUpdated == 0) {
+            document.getElementById("updates-noneFound").hidden = false;
+            return;
+          }
+
+          if (restartNeeded) {
+            document.getElementById("updates-downloaded").hidden = false;
+            document.getElementById("updates-restart-btn").hidden = false;
+          } else {
+            document.getElementById("updates-installed").hidden = false;
+          }
+        }
+
+        var updateInstallListener = {
+          onDownloadFailed: function() {
+            pendingChecks--;
+            updateStatus();
+          },
+          onInstallFailed: function() {
+            pendingChecks--;
+            updateStatus();
+          },
+          onInstallEnded: function(aInstall, aAddon) {
+            pendingChecks--;
+            numUpdated++;
+            if (isPending(aInstall.existingAddon, "upgrade"))
+              restartNeeded = true;
+            updateStatus();
+          }
+        };
+
+        var updateCheckListener = {
+          onUpdateAvailable: function(aAddon, aInstall) {
+            gEventManager.delegateAddonEvent("onUpdateAvailable",
+                                             [aAddon, aInstall]);
+            if (AddonManager.shouldAutoUpdate(aAddon)) {
+              aInstall.addListener(updateInstallListener);
+              aInstall.install();
+            } else {
+              pendingChecks--;
+              numManualUpdates++;
+              updateStatus();
+            }
+          },
+          onNoUpdateAvailable: function(aAddon) {
+            pendingChecks--;
+            updateStatus();
+          },
+          onUpdateFinished: function(aAddon, aError) {
+            gEventManager.delegateAddonEvent("onUpdateFinished",
+                                             [aAddon, aError]);
+          }
+        };
+
+        AddonManager.getAddonsByTypes(null, function(aAddonList) {
+          for (let addon of aAddonList) {
+            if (addon.permissions & AddonManager.PERM_CAN_UPGRADE) {
+              pendingChecks++;
+              addon.findUpdates(updateCheckListener,
+                                AddonManager.UPDATE_WHEN_USER_REQUESTED);
+            }
+          }
+
+          if (pendingChecks == 0)
+            updateStatus();
+        });
+      }
+    },
+
+    cmd_findItemUpdates: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        return hasPermission(aAddon, "upgrade");
+      },
+      doCommand: function(aAddon) {
+        var listener = {
+          onUpdateAvailable: function(aAddon, aInstall) {
+            gEventManager.delegateAddonEvent("onUpdateAvailable",
+                                             [aAddon, aInstall]);
+            if (AddonManager.shouldAutoUpdate(aAddon))
+              aInstall.install();
+          },
+          onNoUpdateAvailable: function(aAddon) {
+            gEventManager.delegateAddonEvent("onNoUpdateAvailable",
+                                             [aAddon]);
+          }
+        };
+        gEventManager.delegateAddonEvent("onCheckingUpdate", [aAddon]);
+        aAddon.findUpdates(listener, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+      }
+    },
+
+    cmd_showItemPreferences: {
+      isEnabled: function(aAddon) {
+        if (!aAddon ||
+            (!aAddon.isActive && !aAddon.isGMPlugin) ||
+            !aAddon.optionsURL) {
+          return false;
+        }
+        if (gViewController.currentViewObj == gDetailView &&
+            (aAddon.optionsType == AddonManager.OPTIONS_TYPE_INLINE ||
+             aAddon.optionsType == AddonManager.OPTIONS_TYPE_INLINE_BROWSER)) {
+          return false;
+        }
+        if (aAddon.optionsType == AddonManager.OPTIONS_TYPE_INLINE_INFO)
+          return false;
+        return true;
+      },
+      doCommand: function(aAddon) {
+        if (hasInlineOptions(aAddon)) {
+          gViewController.commands.cmd_showItemDetails.doCommand(aAddon, true);
+          return;
+        }
+        var optionsURL = aAddon.optionsURL;
+        if (aAddon.optionsType == AddonManager.OPTIONS_TYPE_TAB &&
+            openOptionsInTab(optionsURL)) {
+          return;
+        }
+        var windows = Services.wm.getEnumerator(null);
+        while (windows.hasMoreElements()) {
+          var win = windows.getNext();
+          if (win.closed) {
+            continue;
+          }
+          if (win.document.documentURI == optionsURL) {
+            win.focus();
+            return;
+          }
+        }
+        var features = "chrome,titlebar,toolbar,centerscreen";
+        try {
+          var instantApply = Services.prefs.getBoolPref("browser.preferences.instantApply");
+          features += instantApply ? ",dialog=no" : ",modal";
+        } catch (e) {
+          features += ",modal";
+        }
+        openDialog(optionsURL, "", features);
+      }
+    },
+
+    cmd_showItemAbout: {
+      isEnabled: function(aAddon) {
+        // XXXunf This may be applicable to install items too. See bug 561260
+        return !!aAddon;
+      },
+      doCommand: function(aAddon) {
+        var aboutURL = aAddon.aboutURL;
+        if (aboutURL)
+          openDialog(aboutURL, "", "chrome,centerscreen,modal", aAddon);
+        else
+          openDialog("chrome://mozapps/content/extensions/about.xul",
+                     "", "chrome,centerscreen,modal", aAddon);
+      }
+    },
+
+    cmd_enableItem: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        let addonType = AddonManager.addonTypes[aAddon.type];
+        return (!(addonType.flags & AddonManager.TYPE_SUPPORTS_ASK_TO_ACTIVATE) &&
+                hasPermission(aAddon, "enable"));
+      },
+      doCommand: function(aAddon) {
+        aAddon.userDisabled = false;
+      },
+      getTooltip: function(aAddon) {
+        if (!aAddon)
+          return "";
+        if (aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_ENABLE)
+          return gStrings.ext.GetStringFromName("enableAddonRestartRequiredTooltip");
+        return gStrings.ext.GetStringFromName("enableAddonTooltip");
+      }
+    },
+
+    cmd_disableItem: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        let addonType = AddonManager.addonTypes[aAddon.type];
+        return (!(addonType.flags & AddonManager.TYPE_SUPPORTS_ASK_TO_ACTIVATE) &&
+                hasPermission(aAddon, "disable"));
+      },
+      doCommand: function(aAddon) {
+        aAddon.userDisabled = true;
+      },
+      getTooltip: function(aAddon) {
+        if (!aAddon)
+          return "";
+        if (aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_DISABLE)
+          return gStrings.ext.GetStringFromName("disableAddonRestartRequiredTooltip");
+        return gStrings.ext.GetStringFromName("disableAddonTooltip");
+      }
+    },
+
+    cmd_installItem: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        return aAddon.install && aAddon.install.state == AddonManager.STATE_AVAILABLE;
+      },
+      doCommand: function(aAddon) {
+        function doInstall() {
+          gViewController.currentViewObj.getListItemForID(aAddon.id)._installStatus.installRemote();
+        }
+
+        if (gViewController.currentViewObj == gDetailView)
+          gViewController.popState(doInstall);
+        else
+          doInstall();
+      }
+    },
+
+    cmd_purchaseItem: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        return !!aAddon.purchaseURL;
+      },
+      doCommand: function(aAddon) {
+        openURL(aAddon.purchaseURL);
+      }
+    },
+
+    cmd_uninstallItem: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        return hasPermission(aAddon, "uninstall");
+      },
+      doCommand: function(aAddon) {
+        if (gViewController.currentViewObj != gDetailView) {
+          aAddon.uninstall();
+          return;
+        }
+
+        gViewController.popState(function() {
+          gViewController.currentViewObj.getListItemForID(aAddon.id).uninstall();
+        });
+      },
+      getTooltip: function(aAddon) {
+        if (!aAddon)
+          return "";
+        if (aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL)
+          return gStrings.ext.GetStringFromName("uninstallAddonRestartRequiredTooltip");
+        return gStrings.ext.GetStringFromName("uninstallAddonTooltip");
+      }
+    },
+
+    cmd_cancelUninstallItem: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        return isPending(aAddon, "uninstall");
+      },
+      doCommand: function(aAddon) {
+        aAddon.cancelUninstall();
+      }
+    },
+
+    cmd_installFromFile: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        const nsIFilePicker = Ci.nsIFilePicker;
+        var fp = Cc["@mozilla.org/filepicker;1"]
+                   .createInstance(nsIFilePicker);
+        fp.init(window,
+                gStrings.ext.GetStringFromName("installFromFile.dialogTitle"),
+                nsIFilePicker.modeOpenMultiple);
+        try {
+          fp.appendFilter(gStrings.ext.GetStringFromName("installFromFile.filterName"),
+                          "*.xpi;*.jar");
+          fp.appendFilters(nsIFilePicker.filterAll);
+        } catch (e) { }
+
+        if (fp.show() != nsIFilePicker.returnOK)
+          return;
+
+        var files = fp.files;
+        var installs = [];
+
+        function buildNextInstall() {
+          if (!files.hasMoreElements()) {
+            if (installs.length > 0) {
+              // Display the normal install confirmation for the installs
+              let webInstaller = Cc["@mozilla.org/addons/web-install-listener;1"].
+                                 getService(Ci.amIWebInstallListener);
+              webInstaller.onWebInstallRequested(getBrowserElement(),
+                                                 document.documentURIObject,
+                                                 installs);
+            }
+            return;
+          }
+
+          var file = files.getNext();
+          AddonManager.getInstallForFile(file, function(aInstall) {
+            installs.push(aInstall);
+            buildNextInstall();
+          });
+        }
+
+        buildNextInstall();
+      }
+    },
+
+    cmd_debugAddons: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        let mainWindow = getMainWindow();
+        if ("switchToTabHavingURI" in mainWindow) {
+          mainWindow.switchToTabHavingURI("about:debugging#addons", true);
+        }
+      },
+    },
+
+    cmd_cancelOperation: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        return aAddon.pendingOperations != AddonManager.PENDING_NONE;
+      },
+      doCommand: function(aAddon) {
+        if (isPending(aAddon, "install")) {
+          aAddon.install.cancel();
+        } else if (isPending(aAddon, "upgrade")) {
+          aAddon.pendingUpgrade.install.cancel();
+        } else if (isPending(aAddon, "uninstall")) {
+          aAddon.cancelUninstall();
+        } else if (isPending(aAddon, "enable")) {
+          aAddon.userDisabled = true;
+        } else if (isPending(aAddon, "disable")) {
+          aAddon.userDisabled = false;
+        }
+      }
+    },
+
+    cmd_contribute: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        return ("contributionURL" in aAddon && aAddon.contributionURL);
+      },
+      doCommand: function(aAddon) {
+        openURL(aAddon.contributionURL);
+      }
+    },
+
+    cmd_askToActivateItem: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        let addonType = AddonManager.addonTypes[aAddon.type];
+        return ((addonType.flags & AddonManager.TYPE_SUPPORTS_ASK_TO_ACTIVATE) &&
+                hasPermission(aAddon, "ask_to_activate"));
+      },
+      doCommand: function(aAddon) {
+        aAddon.userDisabled = AddonManager.STATE_ASK_TO_ACTIVATE;
+      }
+    },
+
+    cmd_alwaysActivateItem: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        let addonType = AddonManager.addonTypes[aAddon.type];
+        return ((addonType.flags & AddonManager.TYPE_SUPPORTS_ASK_TO_ACTIVATE) &&
+                hasPermission(aAddon, "enable"));
+      },
+      doCommand: function(aAddon) {
+        aAddon.userDisabled = false;
+      }
+    },
+
+    cmd_neverActivateItem: {
+      isEnabled: function(aAddon) {
+        if (!aAddon)
+          return false;
+        let addonType = AddonManager.addonTypes[aAddon.type];
+        return ((addonType.flags & AddonManager.TYPE_SUPPORTS_ASK_TO_ACTIVATE) &&
+                hasPermission(aAddon, "disable"));
+      },
+      doCommand: function(aAddon) {
+        aAddon.userDisabled = true;
+      }
+    },
+
+    cmd_experimentsLearnMore: {
+      isEnabled: function() {
+        let mainWindow = getMainWindow();
+        return mainWindow && "switchToTabHavingURI" in mainWindow;
+      },
+      doCommand: function() {
+        let url = Services.prefs.getCharPref("toolkit.telemetry.infoURL");
+        openOptionsInTab(url);
+      },
+    },
+
+    cmd_experimentsOpenTelemetryPreferences: {
+      isEnabled: function() {
+        return !!getMainWindowWithPreferencesPane();
+      },
+      doCommand: function() {
+        let mainWindow = getMainWindowWithPreferencesPane();
+        mainWindow.openAdvancedPreferences("dataChoicesTab");
+      },
+    },
+
+    cmd_showUnsignedExtensions: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        gViewController.loadView("addons://list/extension?unsigned=true");
+      },
+    },
+
+    cmd_showAllExtensions: {
+      isEnabled: function() {
+        return true;
+      },
+      doCommand: function() {
+        gViewController.loadView("addons://list/extension");
+      },
+    },
+  },
+
+  supportsCommand: function(aCommand) {
+    return (aCommand in this.commands);
+  },
+
+  isCommandEnabled: function(aCommand) {
+    if (!this.supportsCommand(aCommand))
+      return false;
+    var addon = this.currentViewObj.getSelectedAddon();
+    return this.commands[aCommand].isEnabled(addon);
+  },
+
+  updateCommands: function() {
+    // wait until the view is initialized
+    if (!this.currentViewObj)
+      return;
+    var addon = this.currentViewObj.getSelectedAddon();
+    for (let commandId in this.commands)
+      this.updateCommand(commandId, addon);
+  },
+
+  updateCommand: function(aCommandId, aAddon) {
+    if (typeof aAddon == "undefined")
+      aAddon = this.currentViewObj.getSelectedAddon();
+    var cmd = this.commands[aCommandId];
+    var cmdElt = document.getElementById(aCommandId);
+    cmdElt.setAttribute("disabled", !cmd.isEnabled(aAddon));
+    if ("getTooltip" in cmd) {
+      let tooltip = cmd.getTooltip(aAddon);
+      if (tooltip)
+        cmdElt.setAttribute("tooltiptext", tooltip);
+      else
+        cmdElt.removeAttribute("tooltiptext");
+    }
+  },
+
+  doCommand: function(aCommand, aAddon) {
+    if (!this.supportsCommand(aCommand))
+      return;
+    var cmd = this.commands[aCommand];
+    if (!aAddon)
+      aAddon = this.currentViewObj.getSelectedAddon();
+    if (!cmd.isEnabled(aAddon))
+      return;
+    cmd.doCommand(aAddon);
+  },
+
+  onEvent: function() {}
+};
+
+function hasInlineOptions(aAddon) {
+  return (aAddon.optionsType == AddonManager.OPTIONS_TYPE_INLINE ||
+          aAddon.optionsType == AddonManager.OPTIONS_TYPE_INLINE_BROWSER ||
+          aAddon.optionsType == AddonManager.OPTIONS_TYPE_INLINE_INFO);
+}
+
+function openOptionsInTab(optionsURL) {
+  let mainWindow = getMainWindow();
+  if ("switchToTabHavingURI" in mainWindow) {
+    mainWindow.switchToTabHavingURI(optionsURL, true);
+    return true;
+  }
+  return false;
+}
+
+function formatDate(aDate) {
+  const locale = Cc["@mozilla.org/chrome/chrome-registry;1"]
+                 .getService(Ci.nsIXULChromeRegistry)
+                 .getSelectedLocale("global", true);
+  const dtOptions = { year: 'numeric', month: 'long', day: 'numeric' };
+  return aDate.toLocaleDateString(locale, dtOptions);
+}
+
+
+function hasPermission(aAddon, aPerm) {
+  var perm = AddonManager["PERM_CAN_" + aPerm.toUpperCase()];
+  return !!(aAddon.permissions & perm);
+}
+
+
+function isPending(aAddon, aAction) {
+  var action = AddonManager["PENDING_" + aAction.toUpperCase()];
+  return !!(aAddon.pendingOperations & action);
+}
+
+function isInState(aInstall, aState) {
+  var state = AddonManager["STATE_" + aState.toUpperCase()];
+  return aInstall.state == state;
+}
+
+function shouldShowVersionNumber(aAddon) {
+  if (!aAddon.version)
+    return false;
+
+  // The version number is hidden for experiments.
+  if (aAddon.type == "experiment")
+    return false;
+
+  // The version number is hidden for lightweight themes.
+  if (aAddon.type == "theme")
+    return !/@personas\.mozilla\.org$/.test(aAddon.id);
+
+  return true;
+}
+
+function createItem(aObj, aIsInstall, aIsRemote) {
+  let item = document.createElement("richlistitem");
+
+  item.setAttribute("class", "addon addon-view");
+  item.setAttribute("name", aObj.name);
+  item.setAttribute("type", aObj.type);
+  item.setAttribute("remote", !!aIsRemote);
+
+  if (aIsInstall) {
+    item.mInstall = aObj;
+
+    if (aObj.state != AddonManager.STATE_INSTALLED) {
+      item.setAttribute("status", "installing");
+      return item;
+    }
+    aObj = aObj.addon;
+  }
+
+  item.mAddon = aObj;
+
+  item.setAttribute("status", "installed");
+
+  // set only attributes needed for sorting and XBL binding,
+  // the binding handles the rest
+  item.setAttribute("value", aObj.id);
+
+  if (aObj.type == "experiment") {
+    item.endDate = getExperimentEndDate(aObj);
+  }
+
+  return item;
+}
+
+function sortElements(aElements, aSortBy, aAscending) {
+  // aSortBy is an Array of attributes to sort by, in decending
+  // order of priority.
+
+  const DATE_FIELDS = ["updateDate"];
+  const NUMERIC_FIELDS = ["size", "relevancescore", "purchaseAmount"];
+
+  // We're going to group add-ons into the following buckets:
+  //
+  //  enabledInstalled
+  //    * Enabled
+  //    * Incompatible but enabled because compatibility checking is off
+  //    * Waiting to be installed
+  //    * Waiting to be enabled
+  //
+  //  pendingDisable
+  //    * Waiting to be disabled
+  //
+  //  pendingUninstall
+  //    * Waiting to be removed
+  //
+  //  disabledIncompatibleBlocked
+  //    * Disabled
+  //    * Incompatible
+  //    * Blocklisted
+
+  const UISTATE_ORDER = ["enabled", "askToActivate", "pendingDisable",
+                         "pendingUninstall", "disabled"];
+
+  function dateCompare(a, b) {
+    var aTime = a.getTime();
+    var bTime = b.getTime();
+    if (aTime < bTime)
+      return -1;
+    if (aTime > bTime)
+      return 1;
+    return 0;
+  }
+
+  function numberCompare(a, b) {
+    return a - b;
+  }
+
+  function stringCompare(a, b) {
+    return a.localeCompare(b);
+  }
+
+  function uiStateCompare(a, b) {
+    // If we're in descending order, swap a and b, because
+    // we don't ever want to have descending uiStates
+    if (!aAscending)
+      [a, b] = [b, a];
+
+    return (UISTATE_ORDER.indexOf(a) - UISTATE_ORDER.indexOf(b));
+  }
+
+  function getValue(aObj, aKey) {
+    if (!aObj)
+      return null;
+
+    if (aObj.hasAttribute(aKey))
+      return aObj.getAttribute(aKey);
+
+    var addon = aObj.mAddon || aObj.mInstall;
+    var addonType = aObj.mAddon && AddonManager.addonTypes[aObj.mAddon.type];
+
+    if (!addon)
+      return null;
+
+    if (aKey == "uiState") {
+      if (addon.pendingOperations == AddonManager.PENDING_DISABLE)
+        return "pendingDisable";
+      if (addon.pendingOperations == AddonManager.PENDING_UNINSTALL)
+        return "pendingUninstall";
+      if (!addon.isActive &&
+          (addon.pendingOperations != AddonManager.PENDING_ENABLE &&
+           addon.pendingOperations != AddonManager.PENDING_INSTALL))
+        return "disabled";
+      if (addonType && (addonType.flags & AddonManager.TYPE_SUPPORTS_ASK_TO_ACTIVATE) &&
+          addon.userDisabled == AddonManager.STATE_ASK_TO_ACTIVATE)
+        return "askToActivate";
+      return "enabled";
+    }
+
+    return addon[aKey];
+  }
+
+  // aSortFuncs will hold the sorting functions that we'll
+  // use per element, in the correct order.
+  var aSortFuncs = [];
+
+  for (let i = 0; i < aSortBy.length; i++) {
+    var sortBy = aSortBy[i];
+
+    aSortFuncs[i] = stringCompare;
+
+    if (sortBy == "uiState")
+      aSortFuncs[i] = uiStateCompare;
+    else if (DATE_FIELDS.indexOf(sortBy) != -1)
+      aSortFuncs[i] = dateCompare;
+    else if (NUMERIC_FIELDS.indexOf(sortBy) != -1)
+      aSortFuncs[i] = numberCompare;
+  }
+
+
+  aElements.sort(function(a, b) {
+    if (!aAscending)
+      [a, b] = [b, a];
+
+    for (let i = 0; i < aSortFuncs.length; i++) {
+      var sortBy = aSortBy[i];
+      var aValue = getValue(a, sortBy);
+      var bValue = getValue(b, sortBy);
+
+      if (!aValue && !bValue)
+        return 0;
+      if (!aValue)
+        return -1;
+      if (!bValue)
+        return 1;
+      if (aValue != bValue) {
+        var result = aSortFuncs[i](aValue, bValue);
+
+        if (result != 0)
+          return result;
+      }
+    }
+
+    // If we got here, then all values of a and b
+    // must have been equal.
+    return 0;
+
+  });
+}
+
+function sortList(aList, aSortBy, aAscending) {
+  var elements = Array.slice(aList.childNodes, 0);
+  sortElements(elements, [aSortBy], aAscending);
+
+  while (aList.listChild)
+    aList.removeChild(aList.lastChild);
+
+  for (let element of elements)
+    aList.appendChild(element);
+}
+
+function getAddonsAndInstalls(aType, aCallback) {
+  let addons = null, installs = null;
+  let types = (aType != null) ? [aType] : null;
+
+  AddonManager.getAddonsByTypes(types, function(aAddonsList) {
+    addons = aAddonsList.filter(a => !a.hidden);
+    if (installs != null)
+      aCallback(addons, installs);
+  });
+
+  AddonManager.getInstallsByTypes(types, function(aInstallsList) {
+    // skip over upgrade installs and non-active installs
+    installs = aInstallsList.filter(function(aInstall) {
+      return !(aInstall.existingAddon ||
+               aInstall.state == AddonManager.STATE_AVAILABLE);
+    });
+
+    if (addons != null)
+      aCallback(addons, installs)
+  });
+}
+
+function doPendingUninstalls(aListBox) {
+  // Uninstalling add-ons can mutate the list so find the add-ons first then
+  // uninstall them
+  var items = [];
+  var listitem = aListBox.firstChild;
+  while (listitem) {
+    if (listitem.getAttribute("pending") == "uninstall" &&
+        !(listitem.opRequiresRestart("UNINSTALL")))
+      items.push(listitem.mAddon);
+    listitem = listitem.nextSibling;
+  }
+
+  for (let addon of items)
+    addon.uninstall();
+}
+
+var gCategories = {
+  node: null,
+  _search: null,
+
+  initialize: function() {
+    this.node = document.getElementById("categories");
+    this._search = this.get("addons://search/");
+
+    var types = AddonManager.addonTypes;
+    for (var type in types)
+      this.onTypeAdded(types[type]);
+
+    AddonManager.addTypeListener(this);
+
+    try {
+      this.node.value = Services.prefs.getCharPref(PREF_UI_LASTCATEGORY);
+    } catch (e) { }
+
+    // If there was no last view or no existing category matched the last view
+    // then the list will default to selecting the search category and we never
+    // want to show that as the first view so switch to the default category
+    if (!this.node.selectedItem || this.node.selectedItem == this._search)
+      this.node.value = gViewDefault;
+
+    this.node.addEventListener("select", () => {
+      this.maybeHideSearch();
+      gViewController.loadView(this.node.selectedItem.value);
+    }, false);
+
+    this.node.addEventListener("click", (aEvent) => {
+      var selectedItem = this.node.selectedItem;
+      if (aEvent.target.localName == "richlistitem" &&
+          aEvent.target == selectedItem) {
+        var viewId = selectedItem.value;
+
+        if (gViewController.parseViewId(viewId).type == "search") {
+          viewId += encodeURIComponent(gHeader.searchQuery);
+        }
+
+        gViewController.loadView(viewId);
+      }
+    }, false);
+  },
+
+  shutdown: function() {
+    AddonManager.removeTypeListener(this);
+  },
+
+  _insertCategory: function(aId, aName, aView, aPriority, aStartHidden) {
+    // If this category already exists then don't re-add it
+    if (document.getElementById("category-" + aId))
+      return;
+
+    var category = document.createElement("richlistitem");
+    category.setAttribute("id", "category-" + aId);
+    category.setAttribute("value", aView);
+    category.setAttribute("class", "category");
+    category.setAttribute("name", aName);
+    category.setAttribute("tooltiptext", aName);
+    category.setAttribute("priority", aPriority);
+    category.setAttribute("hidden", aStartHidden);
+
+    var node;
+    for (node of this.node.children) {
+      var nodePriority = parseInt(node.getAttribute("priority"));
+      // If the new type's priority is higher than this one then this is the
+      // insertion point
+      if (aPriority < nodePriority)
+        break;
+      // If the new type's priority is lower than this one then this is isn't
+      // the insertion point
+      if (aPriority > nodePriority)
+        continue;
+      // If the priorities are equal and the new type's name is earlier
+      // alphabetically then this is the insertion point
+      if (String.localeCompare(aName, node.getAttribute("name")) < 0)
+        break;
+    }
+
+    this.node.insertBefore(category, node);
+  },
+
+  _removeCategory: function(aId) {
+    var category = document.getElementById("category-" + aId);
+    if (!category)
+      return;
+
+    // If this category is currently selected then switch to the default view
+    if (this.node.selectedItem == category)
+      gViewController.replaceView(gViewDefault);
+
+    this.node.removeChild(category);
+  },
+
+  onTypeAdded: function(aType) {
+    // Ignore types that we don't have a view object for
+    if (!(aType.viewType in gViewController.viewObjects))
+      return;
+
+    var aViewId = "addons://" + aType.viewType + "/" + aType.id;
+
+    var startHidden = false;
+    if (aType.flags & AddonManager.TYPE_UI_HIDE_EMPTY) {
+      var prefName = PREF_UI_TYPE_HIDDEN.replace("%TYPE%", aType.id);
+      try {
+        startHidden = Services.prefs.getBoolPref(prefName);
+      }
+      catch (e) {
+        // Default to hidden
+        startHidden = true;
+      }
+
+      gPendingInitializations++;
+      getAddonsAndInstalls(aType.id, (aAddonsList, aInstallsList) => {
+        var hidden = (aAddonsList.length == 0 && aInstallsList.length == 0);
+        var item = this.get(aViewId);
+
+        // Don't load view that is becoming hidden
+        if (hidden && aViewId == gViewController.currentViewId)
+          gViewController.loadView(gViewDefault);
+
+        item.hidden = hidden;
+        Services.prefs.setBoolPref(prefName, hidden);
+
+        if (aAddonsList.length > 0 || aInstallsList.length > 0) {
+          notifyInitialized();
+          return;
+        }
+
+        gEventManager.registerInstallListener({
+          onDownloadStarted: function(aInstall) {
+            this._maybeShowCategory(aInstall);
+          },
+
+          onInstallStarted: function(aInstall) {
+            this._maybeShowCategory(aInstall);
+          },
+
+          onInstallEnded: function(aInstall, aAddon) {
+            this._maybeShowCategory(aAddon);
+          },
+
+          onExternalInstall: function(aAddon, aExistingAddon, aRequiresRestart) {
+            this._maybeShowCategory(aAddon);
+          },
+
+          _maybeShowCategory: aAddon => {
+            if (aType.id == aAddon.type) {
+              this.get(aViewId).hidden = false;
+              Services.prefs.setBoolPref(prefName, false);
+              gEventManager.unregisterInstallListener(this);
+            }
+          }
+        });
+
+        notifyInitialized();
+      });
+    }
+
+    this._insertCategory(aType.id, aType.name, aViewId, aType.uiPriority,
+                         startHidden);
+  },
+
+  onTypeRemoved: function(aType) {
+    this._removeCategory(aType.id);
+  },
+
+  get selected() {
+    return this.node.selectedItem ? this.node.selectedItem.value : null;
+  },
+
+  select: function(aId, aPreviousView) {
+    var view = gViewController.parseViewId(aId);
+    if (view.type == "detail" && aPreviousView) {
+      aId = aPreviousView;
+      view = gViewController.parseViewId(aPreviousView);
+    }
+    aId = aId.replace(/\?.*/, "");
+
+    Services.prefs.setCharPref(PREF_UI_LASTCATEGORY, aId);
+
+    if (this.node.selectedItem &&
+        this.node.selectedItem.value == aId) {
+      this.node.selectedItem.hidden = false;
+      this.node.selectedItem.disabled = false;
+      return;
+    }
+
+    var item;
+    if (view.type == "search")
+      item = this._search;
+    else
+      item = this.get(aId);
+
+    if (item) {
+      item.hidden = false;
+      item.disabled = false;
+      this.node.suppressOnSelect = true;
+      this.node.selectedItem = item;
+      this.node.suppressOnSelect = false;
+      this.node.ensureElementIsVisible(item);
+
+      this.maybeHideSearch();
+    }
+  },
+
+  get: function(aId) {
+    var items = document.getElementsByAttribute("value", aId);
+    if (items.length)
+      return items[0];
+    return null;
+  },
+
+  setBadge: function(aId, aCount) {
+    let item = this.get(aId);
+    if (item)
+      item.badgeCount = aCount;
+  },
+
+  maybeHideSearch: function() {
+    var view = gViewController.parseViewId(this.node.selectedItem.value);
+    this._search.disabled = view.type != "search";
+  }
+};
+
+
+var gHeader = {
+  _search: null,
+  _dest: "",
+
+  initialize: function() {
+    this._search = document.getElementById("header-search");
+
+    this._search.addEventListener("command", function(aEvent) {
+      var query = aEvent.target.value;
+      if (query.length == 0)
+        return;
+
+      gViewController.loadView("addons://search/" + encodeURIComponent(query));
+    }, false);
+
+    function updateNavButtonVisibility() {
+      var shouldShow = gHeader.shouldShowNavButtons;
+      document.getElementById("back-btn").hidden = !shouldShow;
+      document.getElementById("forward-btn").hidden = !shouldShow;
+    }
+
+    window.addEventListener("focus", function(aEvent) {
+      if (aEvent.target == window)
+        updateNavButtonVisibility();
+    }, false);
+
+    updateNavButtonVisibility();
+  },
+
+  focusSearchBox: function() {
+    this._search.focus();
+  },
+
+  onKeyPress: function(aEvent) {
+    if (String.fromCharCode(aEvent.charCode) == "/") {
+      this.focusSearchBox();
+      return;
+    }
+  },
+
+  get shouldShowNavButtons() {
+    var docshellItem = window.QueryInterface(Ci.nsIInterfaceRequestor)
+                             .getInterface(Ci.nsIWebNavigation)
+                             .QueryInterface(Ci.nsIDocShellTreeItem);
+
+    // If there is no outer frame then make the buttons visible
+    if (docshellItem.rootTreeItem == docshellItem)
+      return true;
+
+    var outerWin = docshellItem.rootTreeItem.QueryInterface(Ci.nsIInterfaceRequestor)
+                                            .getInterface(Ci.nsIDOMWindow);
+    var outerDoc = outerWin.document;
+    var node = outerDoc.getElementById("back-button");
+    // If the outer frame has no back-button then make the buttons visible
+    if (!node)
+      return true;
+
+    // If the back-button or any of its parents are hidden then make the buttons
+    // visible
+    while (node != outerDoc) {
+      var style = outerWin.getComputedStyle(node, "");
+      if (style.display == "none")
+        return true;
+      if (style.visibility != "visible")
+        return true;
+      node = node.parentNode;
+    }
+
+    return false;
+  },
+
+  get searchQuery() {
+    return this._search.value;
+  },
+
+  set searchQuery(aQuery) {
+    this._search.value = aQuery;
+  },
+};
+
+
+var gDiscoverView = {
+  node: null,
+  enabled: true,
+  // Set to true after the view is first shown. If initialization completes
+  // after this then it must also load the discover homepage
+  loaded: false,
+  _browser: null,
+  _loading: null,
+  _error: null,
+  homepageURL: null,
+  _loadListeners: [],
+  hideHeader: true,
+
+  initialize: function() {
+    this.enabled = isDiscoverEnabled();
+    if (!this.enabled) {
+      gCategories.get("addons://discover/").hidden = true;
+      return;
+    }
+
+    this.node = document.getElementById("discover-view");
+    this._loading = document.getElementById("discover-loading");
+    this._error = document.getElementById("discover-error");
+    this._browser = document.getElementById("discover-browser");
+
+    let compatMode = "normal";
+    if (!AddonManager.checkCompatibility)
+      compatMode = "ignore";
+    else if (AddonManager.strictCompatibility)
+      compatMode = "strict";
+
+    var url = Services.prefs.getCharPref(PREF_DISCOVERURL);
+    url = url.replace("%COMPATIBILITY_MODE%", compatMode);
+    url = Services.urlFormatter.formatURL(url);
+
+    let setURL = (aURL) => {
+      try {
+        this.homepageURL = Services.io.newURI(aURL, null, null);
+      } catch (e) {
+        this.showError();
+        notifyInitialized();
+        return;
+      }
+
+      this._browser.homePage = this.homepageURL.spec;
+      this._browser.addProgressListener(this);
+
+      if (this.loaded)
+        this._loadURL(this.homepageURL.spec, false, notifyInitialized);
+      else
+        notifyInitialized();
+    }
+
+    if (Services.prefs.getBoolPref(PREF_GETADDONS_CACHE_ENABLED) == false) {
+      setURL(url);
+      return;
+    }
+
+    gPendingInitializations++;
+    AddonManager.getAllAddons(function(aAddons) {
+      var list = {};
+      for (let addon of aAddons) {
+        var prefName = PREF_GETADDONS_CACHE_ID_ENABLED.replace("%ID%",
+                                                               addon.id);
+        try {
+          if (!Services.prefs.getBoolPref(prefName))
+            continue;
+        } catch (e) { }
+        list[addon.id] = {
+          name: addon.name,
+          version: addon.version,
+          type: addon.type,
+          userDisabled: addon.userDisabled,
+          isCompatible: addon.isCompatible,
+          isBlocklisted: addon.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED
+        }
+      }
+
+      setURL(url + "#" + JSON.stringify(list));
+    });
+  },
+
+  destroy: function() {
+    try {
+      this._browser.removeProgressListener(this);
+    }
+    catch (e) {
+      // Ignore the case when the listener wasn't already registered
+    }
+  },
+
+  show: function(aParam, aRequest, aState, aIsRefresh) {
+    gViewController.updateCommands();
+
+    // If we're being told to load a specific URL then just do that
+    if (aState && "url" in aState) {
+      this.loaded = true;
+      this._loadURL(aState.url);
+    }
+
+    // If the view has loaded before and still at the homepage (if refreshing),
+    // and the error page is not visible then there is nothing else to do
+    if (this.loaded && this.node.selectedPanel != this._error &&
+        (!aIsRefresh || (this._browser.currentURI &&
+         this._browser.currentURI.spec == this._browser.homePage))) {
+      gViewController.notifyViewChanged();
+      return;
+    }
+
+    this.loaded = true;
+
+    // No homepage means initialization isn't complete, the browser will get
+    // loaded once initialization is complete
+    if (!this.homepageURL) {
+      this._loadListeners.push(gViewController.notifyViewChanged.bind(gViewController));
+      return;
+    }
+
+    this._loadURL(this.homepageURL.spec, aIsRefresh,
+                  gViewController.notifyViewChanged.bind(gViewController));
+  },
+
+  canRefresh: function() {
+    if (this._browser.currentURI &&
+        this._browser.currentURI.spec == this._browser.homePage)
+      return false;
+    return true;
+  },
+
+  refresh: function(aParam, aRequest, aState) {
+    this.show(aParam, aRequest, aState, true);
+  },
+
+  hide: function() { },
+
+  showError: function() {
+    this.node.selectedPanel = this._error;
+  },
+
+  _loadURL: function(aURL, aKeepHistory, aCallback) {
+    if (this._browser.currentURI.spec == aURL) {
+      if (aCallback)
+        aCallback();
+      return;
+    }
+
+    if (aCallback)
+      this._loadListeners.push(aCallback);
+
+    var flags = 0;
+    if (!aKeepHistory)
+      flags |= Ci.nsIWebNavigation.LOAD_FLAGS_REPLACE_HISTORY;
+
+    this._browser.loadURIWithFlags(aURL, flags);
+  },
+
+  onLocationChange: function(aWebProgress, aRequest, aLocation, aFlags) {
+    // Ignore the about:blank load
+    if (aLocation.spec == "about:blank")
+      return;
+
+    // When using the real session history the inner-frame will update the
+    // session history automatically, if using the fake history though it must
+    // be manually updated
+    if (gHistory == FakeHistory) {
+      var docshell = aWebProgress.QueryInterface(Ci.nsIDocShell);
+
+      var state = {
+        view: "addons://discover/",
+        url: aLocation.spec
+      };
+
+      var replaceHistory = Ci.nsIWebNavigation.LOAD_FLAGS_REPLACE_HISTORY << 16;
+      if (docshell.loadType & replaceHistory)
+        gHistory.replaceState(state);
+      else
+        gHistory.pushState(state);
+      gViewController.lastHistoryIndex = gHistory.index;
+    }
+
+    gViewController.updateCommands();
+
+    // If the hostname is the same as the new location's host and either the
+    // default scheme is insecure or the new location is secure then continue
+    // with the load
+    if (aLocation.host == this.homepageURL.host &&
+        (!this.homepageURL.schemeIs("https") || aLocation.schemeIs("https")))
+      return;
+
+    // Canceling the request will send an error to onStateChange which will show
+    // the error page
+    aRequest.cancel(Components.results.NS_BINDING_ABORTED);
+  },
+
+  onSecurityChange: function(aWebProgress, aRequest, aState) {
+    // Don't care about security if the page is not https
+    if (!this.homepageURL.schemeIs("https"))
+      return;
+
+    // If the request was secure then it is ok
+    if (aState & Ci.nsIWebProgressListener.STATE_IS_SECURE)
+      return;
+
+    // Canceling the request will send an error to onStateChange which will show
+    // the error page
+    aRequest.cancel(Components.results.NS_BINDING_ABORTED);
+  },
+
+  onStateChange: function(aWebProgress, aRequest, aStateFlags, aStatus) {
+    let transferStart = Ci.nsIWebProgressListener.STATE_IS_DOCUMENT |
+                        Ci.nsIWebProgressListener.STATE_IS_REQUEST |
+                        Ci.nsIWebProgressListener.STATE_TRANSFERRING;
+    // Once transferring begins show the content
+    if ((aStateFlags & transferStart) === transferStart)
+      this.node.selectedPanel = this._browser;
+
+    // Only care about the network events
+    if (!(aStateFlags & (Ci.nsIWebProgressListener.STATE_IS_NETWORK)))
+      return;
+
+    // If this is the start of network activity then show the loading page
+    if (aStateFlags & (Ci.nsIWebProgressListener.STATE_START))
+      this.node.selectedPanel = this._loading;
+
+    // Ignore anything except stop events
+    if (!(aStateFlags & (Ci.nsIWebProgressListener.STATE_STOP)))
+      return;
+
+    // Consider the successful load of about:blank as still loading
+    if (aRequest instanceof Ci.nsIChannel && aRequest.URI.spec == "about:blank")
+      return;
+
+    // If there was an error loading the page or the new hostname is not the
+    // same as the default hostname or the default scheme is secure and the new
+    // scheme is insecure then show the error page
+    const NS_ERROR_PARSED_DATA_CACHED = 0x805D0021;
+    if (!(Components.isSuccessCode(aStatus) || aStatus == NS_ERROR_PARSED_DATA_CACHED) ||
+        (aRequest && aRequest instanceof Ci.nsIHttpChannel && !aRequest.requestSucceeded)) {
+      this.showError();
+    } else {
+      // Got a successful load, make sure the browser is visible
+      this.node.selectedPanel = this._browser;
+      gViewController.updateCommands();
+    }
+
+    var listeners = this._loadListeners;
+    this._loadListeners = [];
+
+    for (let listener of listeners)
+      listener();
+  },
+
+  onProgressChange: function() { },
+  onStatusChange: function() { },
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
+                                         Ci.nsISupportsWeakReference]),
+
+  getSelectedAddon: function() {
+    return null;
+  }
+};
+
+
+var gCachedAddons = {};
+
+var gSearchView = {
+  node: null,
+  _filter: null,
+  _sorters: null,
+  _loading: null,
+  _listBox: null,
+  _emptyNotice: null,
+  _allResultsLink: null,
+  _lastQuery: null,
+  _lastRemoteTotal: 0,
+  _pendingSearches: 0,
+
+  initialize: function() {
+    this.node = document.getElementById("search-view");
+    this._filter = document.getElementById("search-filter-radiogroup");
+    this._sorters = document.getElementById("search-sorters");
+    this._sorters.handler = this;
+    this._loading = document.getElementById("search-loading");
+    this._listBox = document.getElementById("search-list");
+    this._emptyNotice = document.getElementById("search-list-empty");
+    this._allResultsLink = document.getElementById("search-allresults-link");
+
+    if (!AddonManager.isInstallEnabled("application/x-xpinstall"))
+      this._filter.hidden = true;
+
+    this._listBox.addEventListener("keydown", aEvent => {
+      if (aEvent.keyCode == aEvent.DOM_VK_RETURN) {
+        var item = this._listBox.selectedItem;
+        if (item)
+          item.showInDetailView();
+      }
+    }, false);
+
+    this._filter.addEventListener("command", () => this.updateView(), false);
+  },
+
+  shutdown: function() {
+    if (AddonRepository.isSearching)
+      AddonRepository.cancelSearch();
+  },
+
+  get isSearching() {
+    return this._pendingSearches > 0;
+  },
+
+  show: function(aQuery, aRequest) {
+    gEventManager.registerInstallListener(this);
+
+    this.showEmptyNotice(false);
+    this.showAllResultsLink(0);
+    this.showLoading(true);
+    this._sorters.showprice = false;
+
+    gHeader.searchQuery = aQuery;
+    aQuery = aQuery.trim().toLocaleLowerCase();
+    if (this._lastQuery == aQuery) {
+      this.updateView();
+      gViewController.notifyViewChanged();
+      return;
+    }
+    this._lastQuery = aQuery;
+
+    if (AddonRepository.isSearching)
+      AddonRepository.cancelSearch();
+
+    while (this._listBox.firstChild.localName == "richlistitem")
+      this._listBox.removeChild(this._listBox.firstChild);
+
+    gCachedAddons = {};
+    this._pendingSearches = 2;
+    this._sorters.setSort("relevancescore", false);
+
+    var elements = [];
+
+    let createSearchResults = (aObjsList, aIsInstall, aIsRemote) => {
+      for (let index in aObjsList) {
+        let obj = aObjsList[index];
+        let score = aObjsList.length - index;
+        if (!aIsRemote && aQuery.length > 0) {
+          score = this.getMatchScore(obj, aQuery);
+          if (score == 0)
+            continue;
+        }
+
+        let item = createItem(obj, aIsInstall, aIsRemote);
+        item.setAttribute("relevancescore", score);
+        if (aIsRemote) {
+          gCachedAddons[obj.id] = obj;
+          if (obj.purchaseURL)
+            this._sorters.showprice = true;
+        }
+
+        elements.push(item);
+      }
+    }
+
+    let finishSearch = (createdCount) => {
+      if (elements.length > 0) {
+        sortElements(elements, [this._sorters.sortBy], this._sorters.ascending);
+        for (let element of elements)
+          this._listBox.insertBefore(element, this._listBox.lastChild);
+        this.updateListAttributes();
+      }
+
+      this._pendingSearches--;
+      this.updateView();
+
+      if (!this.isSearching)
+        gViewController.notifyViewChanged();
+    }
+
+    getAddonsAndInstalls(null, function(aAddons, aInstalls) {
+      if (gViewController && aRequest != gViewController.currentViewRequest)
+        return;
+
+      createSearchResults(aAddons, false, false);
+      createSearchResults(aInstalls, true, false);
+      finishSearch();
+    });
+
+    var maxRemoteResults = 0;
+    try {
+      maxRemoteResults = Services.prefs.getIntPref(PREF_MAXRESULTS);
+    } catch (e) {}
+
+    if (maxRemoteResults <= 0) {
+      finishSearch(0);
+      return;
+    }
+
+    AddonRepository.searchAddons(aQuery, maxRemoteResults, {
+      searchFailed: () => {
+        if (gViewController && aRequest != gViewController.currentViewRequest)
+          return;
+
+        this._lastRemoteTotal = 0;
+
+        // XXXunf Better handling of AMO search failure. See bug 579502
+        finishSearch(0); // Silently fail
+      },
+
+      searchSucceeded: (aAddonsList, aAddonCount, aTotalResults) => {
+        if (gViewController && aRequest != gViewController.currentViewRequest)
+          return;
+
+        if (aTotalResults > maxRemoteResults)
+          this._lastRemoteTotal = aTotalResults;
+        else
+          this._lastRemoteTotal = 0;
+
+        var createdCount = createSearchResults(aAddonsList, false, true);
+        finishSearch(createdCount);
+      }
+    });
+  },
+
+  showLoading: function(aLoading) {
+    this._loading.hidden = !aLoading;
+    this._listBox.hidden = aLoading;
+  },
+
+  updateView: function() {
+    var showLocal = this._filter.value == "local";
+
+    if (!showLocal && !AddonManager.isInstallEnabled("application/x-xpinstall"))
+      showLocal = true;
+
+    this._listBox.setAttribute("local", showLocal);
+    this._listBox.setAttribute("remote", !showLocal);
+
+    this.showLoading(this.isSearching && !showLocal);
+    if (!this.isSearching) {
+      var isEmpty = true;
+      var results = this._listBox.getElementsByTagName("richlistitem");
+      for (let result of results) {
+        var isRemote = (result.getAttribute("remote") == "true");
+        if ((isRemote && !showLocal) || (!isRemote && showLocal)) {
+          isEmpty = false;
+          break;
+        }
+      }
+
+      this.showEmptyNotice(isEmpty);
+      this.showAllResultsLink(this._lastRemoteTotal);
+    }
+
+    gViewController.updateCommands();
+  },
+
+  hide: function() {
+    gEventManager.unregisterInstallListener(this);
+    doPendingUninstalls(this._listBox);
+  },
+
+  getMatchScore: function(aObj, aQuery) {
+    var score = 0;
+    score += this.calculateMatchScore(aObj.name, aQuery,
+                                      SEARCH_SCORE_MULTIPLIER_NAME);
+    score += this.calculateMatchScore(aObj.description, aQuery,
+                                      SEARCH_SCORE_MULTIPLIER_DESCRIPTION);
+    return score;
+  },
+
+  calculateMatchScore: function(aStr, aQuery, aMultiplier) {
+    var score = 0;
+    if (!aStr || aQuery.length == 0)
+      return score;
+
+    aStr = aStr.trim().toLocaleLowerCase();
+    var haystack = aStr.split(/\s+/);
+    var needles = aQuery.split(/\s+/);
+
+    for (let needle of needles) {
+      for (let hay of haystack) {
+        if (hay == needle) {
+          // matching whole words is best
+          score += SEARCH_SCORE_MATCH_WHOLEWORD;
+        } else {
+          let i = hay.indexOf(needle);
+          if (i == 0) // matching on word boundries is also good
+            score += SEARCH_SCORE_MATCH_WORDBOUNDRY;
+          else if (i > 0) // substring matches not so good
+            score += SEARCH_SCORE_MATCH_SUBSTRING;
+        }
+      }
+    }
+
+    // give progressively higher score for longer queries, since longer queries
+    // are more likely to be unique and therefore more relevant.
+    if (needles.length > 1 && aStr.indexOf(aQuery) != -1)
+      score += needles.length;
+
+    return score * aMultiplier;
+  },
+
+  showEmptyNotice: function(aShow) {
+    this._emptyNotice.hidden = !aShow;
+    this._listBox.hidden = aShow;
+  },
+
+  showAllResultsLink: function(aTotalResults) {
+    if (aTotalResults == 0) {
+      this._allResultsLink.hidden = true;
+      return;
+    }
+
+    var linkStr = gStrings.ext.GetStringFromName("showAllSearchResults");
+    linkStr = PluralForm.get(aTotalResults, linkStr);
+    linkStr = linkStr.replace("#1", aTotalResults);
+    this._allResultsLink.setAttribute("value", linkStr);
+
+    this._allResultsLink.setAttribute("href",
+                                      AddonRepository.getSearchURL(this._lastQuery));
+    this._allResultsLink.hidden = false;
+ },
+
+  updateListAttributes: function() {
+    var item = this._listBox.querySelector("richlistitem[remote='true'][first]");
+    if (item)
+      item.removeAttribute("first");
+    item = this._listBox.querySelector("richlistitem[remote='true'][last]");
+    if (item)
+      item.removeAttribute("last");
+    var items = this._listBox.querySelectorAll("richlistitem[remote='true']");
+    if (items.length > 0) {
+      items[0].setAttribute("first", true);
+      items[items.length - 1].setAttribute("last", true);
+    }
+
+    item = this._listBox.querySelector("richlistitem:not([remote='true'])[first]");
+    if (item)
+      item.removeAttribute("first");
+    item = this._listBox.querySelector("richlistitem:not([remote='true'])[last]");
+    if (item)
+      item.removeAttribute("last");
+    items = this._listBox.querySelectorAll("richlistitem:not([remote='true'])");
+    if (items.length > 0) {
+      items[0].setAttribute("first", true);
+      items[items.length - 1].setAttribute("last", true);
+    }
+
+  },
+
+  onSortChanged: function(aSortBy, aAscending) {
+    var footer = this._listBox.lastChild;
+    this._listBox.removeChild(footer);
+
+    sortList(this._listBox, aSortBy, aAscending);
+    this.updateListAttributes();
+
+    this._listBox.appendChild(footer);
+  },
+
+  onDownloadCancelled: function(aInstall) {
+    this.removeInstall(aInstall);
+  },
+
+  onInstallCancelled: function(aInstall) {
+    this.removeInstall(aInstall);
+  },
+
+  removeInstall: function(aInstall) {
+    for (let item of this._listBox.childNodes) {
+      if (item.mInstall == aInstall) {
+        this._listBox.removeChild(item);
+        return;
+      }
+    }
+  },
+
+  getSelectedAddon: function() {
+    var item = this._listBox.selectedItem;
+    if (item)
+      return item.mAddon;
+    return null;
+  },
+
+  getListItemForID: function(aId) {
+    var listitem = this._listBox.firstChild;
+    while (listitem) {
+      if (listitem.getAttribute("status") == "installed" && listitem.mAddon.id == aId)
+        return listitem;
+      listitem = listitem.nextSibling;
+    }
+    return null;
+  }
+};
+
+
+var gListView = {
+  node: null,
+  _listBox: null,
+  _emptyNotice: null,
+  _type: null,
+
+  initialize: function() {
+    this.node = document.getElementById("list-view");
+    this._listBox = document.getElementById("addon-list");
+    this._emptyNotice = document.getElementById("addon-list-empty");
+
+    this._listBox.addEventListener("keydown", (aEvent) => {
+      if (aEvent.keyCode == aEvent.DOM_VK_RETURN) {
+        var item = this._listBox.selectedItem;
+        if (item)
+          item.showInDetailView();
+      }
+    }, false);
+
+    document.getElementById("signing-learn-more").setAttribute("href",
+      Services.urlFormatter.formatURLPref("app.support.baseURL") + "unsigned-addons");
+
+    let findSignedAddonsLink = document.getElementById("find-alternative-addons");
+    try {
+      findSignedAddonsLink.setAttribute("href",
+        Services.urlFormatter.formatURLPref("extensions.getAddons.link.url"));
+    } catch (e) {
+      findSignedAddonsLink.classList.remove("text-link");
+    }
+
+    try {
+      document.getElementById("signing-dev-manual-link").setAttribute("href",
+        Services.prefs.getCharPref("xpinstall.signatures.devInfoURL"));
+    } catch (e) {
+      document.getElementById("signing-dev-info").hidden = true;
+    }
+
+    if (Preferences.get("plugin.load_flash_only", true)) {
+      document.getElementById("plugindeprecation-learnmore-link")
+        .setAttribute("href", Services.urlFormatter.formatURLPref("app.support.baseURL") + "npapi");
+    } else {
+      document.getElementById("plugindeprecation-notice").hidden = true;
+    }
+  },
+
+  show: function(aType, aRequest) {
+    let showOnlyDisabledUnsigned = false;
+    if (aType.endsWith("?unsigned=true")) {
+      aType = aType.replace(/\?.*/, "");
+      showOnlyDisabledUnsigned = true;
+    }
+
+    if (!(aType in AddonManager.addonTypes))
+      throw Components.Exception("Attempting to show unknown type " + aType, Cr.NS_ERROR_INVALID_ARG);
+
+    this._type = aType;
+    this.node.setAttribute("type", aType);
+    this.showEmptyNotice(false);
+
+    while (this._listBox.itemCount > 0)
+      this._listBox.removeItemAt(0);
+
+    if (aType == "plugin") {
+      navigator.plugins.refresh(false);
+    }
+
+    getAddonsAndInstalls(aType, (aAddonsList, aInstallsList) => {
+      if (gViewController && aRequest != gViewController.currentViewRequest)
+        return;
+
+      var elements = [];
+
+      for (let addonItem of aAddonsList)
+        elements.push(createItem(addonItem));
+
+      for (let installItem of aInstallsList)
+        elements.push(createItem(installItem, true));
+
+      this.showEmptyNotice(elements.length == 0);
+      if (elements.length > 0) {
+        sortElements(elements, ["uiState", "name"], true);
+        for (let element of elements)
+          this._listBox.appendChild(element);
+      }
+
+      this.filterDisabledUnsigned(showOnlyDisabledUnsigned);
+
+      gEventManager.registerInstallListener(this);
+      gViewController.updateCommands();
+      gViewController.notifyViewChanged();
+    });
+  },
+
+  hide: function() {
+    gEventManager.unregisterInstallListener(this);
+    doPendingUninstalls(this._listBox);
+  },
+
+  filterDisabledUnsigned: function(aFilter = true) {
+    let foundDisabledUnsigned = false;
+
+    if (SIGNING_REQUIRED) {
+      for (let item of this._listBox.childNodes) {
+        if (!isCorrectlySigned(item.mAddon))
+          foundDisabledUnsigned = true;
+        else
+          item.hidden = aFilter;
+      }
+    }
+
+    document.getElementById("show-disabled-unsigned-extensions").hidden =
+      aFilter || !foundDisabledUnsigned;
+
+    document.getElementById("show-all-extensions").hidden = !aFilter;
+    document.getElementById("disabled-unsigned-addons-info").hidden = !aFilter;
+  },
+
+  showEmptyNotice: function(aShow) {
+    this._emptyNotice.hidden = !aShow;
+    this._listBox.hidden = aShow;
+  },
+
+  onSortChanged: function(aSortBy, aAscending) {
+    sortList(this._listBox, aSortBy, aAscending);
+  },
+
+  onExternalInstall: function(aAddon, aExistingAddon, aRequiresRestart) {
+    // The existing list item will take care of upgrade installs
+    if (aExistingAddon)
+      return;
+
+    if (aAddon.hidden)
+      return;
+
+    this.addItem(aAddon);
+  },
+
+  onDownloadStarted: function(aInstall) {
+    this.addItem(aInstall, true);
+  },
+
+  onInstallStarted: function(aInstall) {
+    this.addItem(aInstall, true);
+  },
+
+  onDownloadCancelled: function(aInstall) {
+    this.removeItem(aInstall, true);
+  },
+
+  onInstallCancelled: function(aInstall) {
+    this.removeItem(aInstall, true);
+  },
+
+  onInstallEnded: function(aInstall) {
+    // Remove any install entries for upgrades, their status will appear against
+    // the existing item
+    if (aInstall.existingAddon)
+      this.removeItem(aInstall, true);
+
+    if (aInstall.addon.type == "experiment") {
+      let item = this.getListItemForID(aInstall.addon.id);
+      if (item) {
+        item.endDate = getExperimentEndDate(aInstall.addon);
+      }
+    }
+  },
+
+  addItem: function(aObj, aIsInstall) {
+    if (aObj.type != this._type)
+      return;
+
+    if (aIsInstall && aObj.existingAddon)
+      return;
+
+    let prop = aIsInstall ? "mInstall" : "mAddon";
+    for (let item of this._listBox.childNodes) {
+      if (item[prop] == aObj)
+        return;
+    }
+
+    let item = createItem(aObj, aIsInstall);
+    this._listBox.insertBefore(item, this._listBox.firstChild);
+    this.showEmptyNotice(false);
+  },
+
+  removeItem: function(aObj, aIsInstall) {
+    let prop = aIsInstall ? "mInstall" : "mAddon";
+
+    for (let item of this._listBox.childNodes) {
+      if (item[prop] == aObj) {
+        this._listBox.removeChild(item);
+        this.showEmptyNotice(this._listBox.itemCount == 0);
+        return;
+      }
+    }
+  },
+
+  getSelectedAddon: function() {
+    var item = this._listBox.selectedItem;
+    if (item)
+      return item.mAddon;
+    return null;
+  },
+
+  getListItemForID: function(aId) {
+    var listitem = this._listBox.firstChild;
+    while (listitem) {
+      if (listitem.getAttribute("status") == "installed" && listitem.mAddon.id == aId)
+        return listitem;
+      listitem = listitem.nextSibling;
+    }
+    return null;
+  }
+};
+
+
+var gDetailView = {
+  node: null,
+  _addon: null,
+  _loadingTimer: null,
+  _autoUpdate: null,
+
+  initialize: function() {
+    this.node = document.getElementById("detail-view");
+
+    this._autoUpdate = document.getElementById("detail-autoUpdate");
+
+    this._autoUpdate.addEventListener("command", () => {
+      this._addon.applyBackgroundUpdates = this._autoUpdate.value;
+    }, true);
+  },
+
+  shutdown: function() {
+    AddonManager.removeManagerListener(this);
+  },
+
+  onUpdateModeChanged: function() {
+    this.onPropertyChanged(["applyBackgroundUpdates"]);
+  },
+
+  _updateView: function(aAddon, aIsRemote, aScrollToPreferences) {
+    AddonManager.addManagerListener(this);
+    this.clearLoading();
+
+    this._addon = aAddon;
+    gEventManager.registerAddonListener(this, aAddon.id);
+    gEventManager.registerInstallListener(this);
+
+    this.node.setAttribute("type", aAddon.type);
+
+    // If the search category isn't selected then make sure to select the
+    // correct category
+    if (gCategories.selected != "addons://search/")
+      gCategories.select("addons://list/" + aAddon.type);
+
+    document.getElementById("detail-name").textContent = aAddon.name;
+    var icon = AddonManager.getPreferredIconURL(aAddon, 64, window);
+    document.getElementById("detail-icon").src = icon ? icon : "";
+    document.getElementById("detail-creator").setCreator(aAddon.creator, aAddon.homepageURL);
+
+    var version = document.getElementById("detail-version");
+    if (shouldShowVersionNumber(aAddon)) {
+      version.hidden = false;
+      version.value = aAddon.version;
+    } else {
+      version.hidden = true;
+    }
+
+    var screenshotbox = document.getElementById("detail-screenshot-box");
+    var screenshot = document.getElementById("detail-screenshot");
+    if (aAddon.screenshots && aAddon.screenshots.length > 0) {
+      if (aAddon.screenshots[0].thumbnailURL) {
+        screenshot.src = aAddon.screenshots[0].thumbnailURL;
+        screenshot.width = aAddon.screenshots[0].thumbnailWidth;
+        screenshot.height = aAddon.screenshots[0].thumbnailHeight;
+      } else {
+        screenshot.src = aAddon.screenshots[0].url;
+        screenshot.width = aAddon.screenshots[0].width;
+        screenshot.height = aAddon.screenshots[0].height;
+      }
+      screenshot.setAttribute("loading", "true");
+      screenshotbox.hidden = false;
+    } else {
+      screenshotbox.hidden = true;
+    }
+
+    var desc = document.getElementById("detail-desc");
+    desc.textContent = aAddon.description;
+
+    var fullDesc = document.getElementById("detail-fulldesc");
+    if (aAddon.fullDescription) {
+      // The following is part of an awful hack to include the licenses for GMP
+      // plugins without having bug 624602 fixed yet, and intentionally ignores
+      // localisation.
+      if (aAddon.isGMPlugin) {
+        fullDesc.innerHTML = aAddon.fullDescription;
+      } else {
+        fullDesc.textContent = aAddon.fullDescription;
+      }
+
+      fullDesc.hidden = false;
+    } else {
+      fullDesc.hidden = true;
+    }
+
+    var contributions = document.getElementById("detail-contributions");
+    if ("contributionURL" in aAddon && aAddon.contributionURL) {
+      contributions.hidden = false;
+      var amount = document.getElementById("detail-contrib-suggested");
+      if (aAddon.contributionAmount) {
+        amount.value = gStrings.ext.formatStringFromName("contributionAmount2",
+                                                         [aAddon.contributionAmount],
+                                                         1);
+        amount.hidden = false;
+      } else {
+        amount.hidden = true;
+      }
+    } else {
+      contributions.hidden = true;
+    }
+
+    if ("purchaseURL" in aAddon && aAddon.purchaseURL) {
+      var purchase = document.getElementById("detail-purchase-btn");
+      purchase.label = gStrings.ext.formatStringFromName("cmd.purchaseAddon.label",
+                                                         [aAddon.purchaseDisplayAmount],
+                                                         1);
+      purchase.accesskey = gStrings.ext.GetStringFromName("cmd.purchaseAddon.accesskey");
+    }
+
+    var updateDateRow = document.getElementById("detail-dateUpdated");
+    if (aAddon.updateDate) {
+      var date = formatDate(aAddon.updateDate);
+      updateDateRow.value = date;
+    } else {
+      updateDateRow.value = null;
+    }
+
+    // TODO if the add-on was downloaded from releases.mozilla.org link to the
+    // AMO profile (bug 590344)
+    if (false) {
+      document.getElementById("detail-repository-row").hidden = false;
+      document.getElementById("detail-homepage-row").hidden = true;
+      var repository = document.getElementById("detail-repository");
+      repository.value = aAddon.homepageURL;
+      repository.href = aAddon.homepageURL;
+    } else if (aAddon.homepageURL) {
+      document.getElementById("detail-repository-row").hidden = true;
+      document.getElementById("detail-homepage-row").hidden = false;
+      var homepage = document.getElementById("detail-homepage");
+      homepage.value = aAddon.homepageURL;
+      homepage.href = aAddon.homepageURL;
+    } else {
+      document.getElementById("detail-repository-row").hidden = true;
+      document.getElementById("detail-homepage-row").hidden = true;
+    }
+
+    var rating = document.getElementById("detail-rating");
+    if (aAddon.averageRating) {
+      rating.averageRating = aAddon.averageRating;
+      rating.hidden = false;
+    } else {
+      rating.hidden = true;
+    }
+
+    var reviews = document.getElementById("detail-reviews");
+    if (aAddon.reviewURL) {
+      var text = gStrings.ext.GetStringFromName("numReviews");
+      text = PluralForm.get(aAddon.reviewCount, text)
+      text = text.replace("#1", aAddon.reviewCount);
+      reviews.value = text;
+      reviews.hidden = false;
+      reviews.href = aAddon.reviewURL;
+    } else {
+      reviews.hidden = true;
+    }
+
+    document.getElementById("detail-rating-row").hidden = !aAddon.averageRating && !aAddon.reviewURL;
+
+    var sizeRow = document.getElementById("detail-size");
+    if (aAddon.size && aIsRemote) {
+      let [size, unit] = DownloadUtils.convertByteUnits(parseInt(aAddon.size));
+      let formatted = gStrings.dl.GetStringFromName("doneSize");
+      formatted = formatted.replace("#1", size).replace("#2", unit);
+      sizeRow.value = formatted;
+    } else {
+      sizeRow.value = null;
+    }
+
+    var downloadsRow = document.getElementById("detail-downloads");
+    if (aAddon.totalDownloads && aIsRemote) {
+      var downloads = aAddon.totalDownloads;
+      downloadsRow.value = downloads;
+    } else {
+      downloadsRow.value = null;
+    }
+
+    var canUpdate = !aIsRemote && hasPermission(aAddon, "upgrade") && aAddon.id != AddonManager.hotfixID;
+    document.getElementById("detail-updates-row").hidden = !canUpdate;
+
+    if ("applyBackgroundUpdates" in aAddon) {
+      this._autoUpdate.hidden = false;
+      this._autoUpdate.value = aAddon.applyBackgroundUpdates;
+      let hideFindUpdates = AddonManager.shouldAutoUpdate(this._addon);
+      document.getElementById("detail-findUpdates-btn").hidden = hideFindUpdates;
+    } else {
+      this._autoUpdate.hidden = true;
+      document.getElementById("detail-findUpdates-btn").hidden = false;
+    }
+
+    document.getElementById("detail-prefs-btn").hidden = !aIsRemote &&
+      !gViewController.commands.cmd_showItemPreferences.isEnabled(aAddon);
+
+    var gridRows = document.querySelectorAll("#detail-grid rows row");
+    let first = true;
+    for (let gridRow of gridRows) {
+      if (first && window.getComputedStyle(gridRow, null).getPropertyValue("display") != "none") {
+        gridRow.setAttribute("first-row", true);
+        first = false;
+      } else {
+        gridRow.removeAttribute("first-row");
+      }
+    }
+
+    if (this._addon.type == "experiment") {
+      let prefix = "details.experiment.";
+      let active = this._addon.isActive;
+
+      let stateKey = prefix + "state." + (active ? "active" : "complete");
+      let node = document.getElementById("detail-experiment-state");
+      node.value = gStrings.ext.GetStringFromName(stateKey);
+
+      let now = Date.now();
+      let end = getExperimentEndDate(this._addon);
+      let days = Math.abs(end - now) / (24 * 60 * 60 * 1000);
+
+      let timeKey = prefix + "time.";
+      let timeMessage;
+      if (days < 1) {
+        timeKey += (active ? "endsToday" : "endedToday");
+        timeMessage = gStrings.ext.GetStringFromName(timeKey);
+      } else {
+        timeKey += (active ? "daysRemaining" : "daysPassed");
+        days = Math.round(days);
+        let timeString = gStrings.ext.GetStringFromName(timeKey);
+        timeMessage = PluralForm.get(days, timeString)
+                                .replace("#1", days);
+      }
+
+      document.getElementById("detail-experiment-time").value = timeMessage;
+    }
+
+    this.fillSettingsRows(aScrollToPreferences, (function() {
+      this.updateState();
+      gViewController.notifyViewChanged();
+    }).bind(this));
+  },
+
+  show: function(aAddonId, aRequest) {
+    let index = aAddonId.indexOf("/preferences");
+    let scrollToPreferences = false;
+    if (index >= 0) {
+      aAddonId = aAddonId.substring(0, index);
+      scrollToPreferences = true;
+    }
+
+    this._loadingTimer = setTimeout(() => {
+      this.node.setAttribute("loading-extended", true);
+    }, LOADING_MSG_DELAY);
+
+    var view = gViewController.currentViewId;
+
+    AddonManager.getAddonByID(aAddonId, (aAddon) => {
+      if (gViewController && aRequest != gViewController.currentViewRequest)
+        return;
+
+      if (aAddon) {
+        this._updateView(aAddon, false, scrollToPreferences);
+        return;
+      }
+
+      // Look for an add-on pending install
+      AddonManager.getAllInstalls(aInstalls => {
+        for (let install of aInstalls) {
+          if (install.state == AddonManager.STATE_INSTALLED &&
+              install.addon.id == aAddonId) {
+            this._updateView(install.addon, false);
+            return;
+          }
+        }
+
+        if (aAddonId in gCachedAddons) {
+          this._updateView(gCachedAddons[aAddonId], true);
+          return;
+        }
+
+        // This might happen due to session restore restoring us back to an
+        // add-on that doesn't exist but otherwise shouldn't normally happen.
+        // Either way just revert to the default view.
+        gViewController.replaceView(gViewDefault);
+      });
+    });
+  },
+
+  hide: function() {
+    AddonManager.removeManagerListener(this);
+    this.clearLoading();
+    if (this._addon) {
+      if (hasInlineOptions(this._addon)) {
+        Services.obs.notifyObservers(document,
+                                     AddonManager.OPTIONS_NOTIFICATION_HIDDEN,
+                                     this._addon.id);
+      }
+
+      gEventManager.unregisterAddonListener(this, this._addon.id);
+      gEventManager.unregisterInstallListener(this);
+      this._addon = null;
+
+      // Flush the preferences to disk so they survive any crash
+      if (this.node.getElementsByTagName("setting").length)
+        Services.prefs.savePrefFile(null);
+    }
+  },
+
+  updateState: function() {
+    gViewController.updateCommands();
+
+    var pending = this._addon.pendingOperations;
+    if (pending != AddonManager.PENDING_NONE) {
+      this.node.removeAttribute("notification");
+
+      pending = null;
+      const PENDING_OPERATIONS = ["enable", "disable", "install", "uninstall",
+                                  "upgrade"];
+      for (let op of PENDING_OPERATIONS) {
+        if (isPending(this._addon, op))
+          pending = op;
+      }
+
+      this.node.setAttribute("pending", pending);
+      document.getElementById("detail-pending").textContent = gStrings.ext.formatStringFromName(
+        "details.notification." + pending,
+        [this._addon.name, gStrings.brandShortName], 2
+      );
+    } else {
+      this.node.removeAttribute("pending");
+
+      if (this._addon.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED) {
+        this.node.setAttribute("notification", "error");
+        document.getElementById("detail-error").textContent = gStrings.ext.formatStringFromName(
+          "details.notification.blocked",
+          [this._addon.name], 1
+        );
+        var errorLink = document.getElementById("detail-error-link");
+        errorLink.value = gStrings.ext.GetStringFromName("details.notification.blocked.link");
+        errorLink.href = this._addon.blocklistURL;
+        errorLink.hidden = false;
+      } else if (!isCorrectlySigned(this._addon) && SIGNING_REQUIRED) {
+        this.node.setAttribute("notification", "error");
+        document.getElementById("detail-error").textContent = gStrings.ext.formatStringFromName(
+          "details.notification.unsignedAndDisabled", [this._addon.name, gStrings.brandShortName], 2
+        );
+        let errorLink = document.getElementById("detail-error-link");
+        errorLink.value = gStrings.ext.GetStringFromName("details.notification.unsigned.link");
+        errorLink.href = Services.urlFormatter.formatURLPref("app.support.baseURL") + "unsigned-addons";
+        errorLink.hidden = false;
+      } else if (!this._addon.isCompatible && (AddonManager.checkCompatibility ||
+        (this._addon.blocklistState != Ci.nsIBlocklistService.STATE_SOFTBLOCKED))) {
+        this.node.setAttribute("notification", "warning");
+        document.getElementById("detail-warning").textContent = gStrings.ext.formatStringFromName(
+          "details.notification.incompatible",
+          [this._addon.name, gStrings.brandShortName, gStrings.appVersion], 3
+        );
+        document.getElementById("detail-warning-link").hidden = true;
+      } else if (!isCorrectlySigned(this._addon)) {
+        this.node.setAttribute("notification", "warning");
+        document.getElementById("detail-warning").textContent = gStrings.ext.formatStringFromName(
+          "details.notification.unsigned", [this._addon.name, gStrings.brandShortName], 2
+        );
+        var warningLink = document.getElementById("detail-warning-link");
+        warningLink.value = gStrings.ext.GetStringFromName("details.notification.unsigned.link");
+        warningLink.href = Services.urlFormatter.formatURLPref("app.support.baseURL") + "unsigned-addons";
+        warningLink.hidden = false;
+      } else if (this._addon.blocklistState == Ci.nsIBlocklistService.STATE_SOFTBLOCKED) {
+        this.node.setAttribute("notification", "warning");
+        document.getElementById("detail-warning").textContent = gStrings.ext.formatStringFromName(
+          "details.notification.softblocked",
+          [this._addon.name], 1
+        );
+        let warningLink = document.getElementById("detail-warning-link");
+        warningLink.value = gStrings.ext.GetStringFromName("details.notification.softblocked.link");
+        warningLink.href = this._addon.blocklistURL;
+        warningLink.hidden = false;
+      } else if (this._addon.blocklistState == Ci.nsIBlocklistService.STATE_OUTDATED) {
+        this.node.setAttribute("notification", "warning");
+        document.getElementById("detail-warning").textContent = gStrings.ext.formatStringFromName(
+          "details.notification.outdated",
+          [this._addon.name], 1
+        );
+        let warningLink = document.getElementById("detail-warning-link");
+        warningLink.value = gStrings.ext.GetStringFromName("details.notification.outdated.link");
+        warningLink.href = this._addon.blocklistURL;
+        warningLink.hidden = false;
+      } else if (this._addon.blocklistState == Ci.nsIBlocklistService.STATE_VULNERABLE_UPDATE_AVAILABLE) {
+        this.node.setAttribute("notification", "error");
+        document.getElementById("detail-error").textContent = gStrings.ext.formatStringFromName(
+          "details.notification.vulnerableUpdatable",
+          [this._addon.name], 1
+        );
+        let errorLink = document.getElementById("detail-error-link");
+        errorLink.value = gStrings.ext.GetStringFromName("details.notification.vulnerableUpdatable.link");
+        errorLink.href = this._addon.blocklistURL;
+        errorLink.hidden = false;
+      } else if (this._addon.blocklistState == Ci.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE) {
+        this.node.setAttribute("notification", "error");
+        document.getElementById("detail-error").textContent = gStrings.ext.formatStringFromName(
+          "details.notification.vulnerableNoUpdate",
+          [this._addon.name], 1
+        );
+        let errorLink = document.getElementById("detail-error-link");
+        errorLink.value = gStrings.ext.GetStringFromName("details.notification.vulnerableNoUpdate.link");
+        errorLink.href = this._addon.blocklistURL;
+        errorLink.hidden = false;
+      } else if (this._addon.isGMPlugin && !this._addon.isInstalled &&
+                 this._addon.isActive) {
+        this.node.setAttribute("notification", "warning");
+        let warning = document.getElementById("detail-warning");
+        warning.textContent =
+          gStrings.ext.formatStringFromName("details.notification.gmpPending",
+                                            [this._addon.name], 1);
+      } else {
+        this.node.removeAttribute("notification");
+      }
+    }
+
+    let menulist = document.getElementById("detail-state-menulist");
+    let addonType = AddonManager.addonTypes[this._addon.type];
+    if (addonType.flags & AddonManager.TYPE_SUPPORTS_ASK_TO_ACTIVATE) {
+      let askItem = document.getElementById("detail-ask-to-activate-menuitem");
+      let alwaysItem = document.getElementById("detail-always-activate-menuitem");
+      let neverItem = document.getElementById("detail-never-activate-menuitem");
+      let hasActivatePermission =
+        ["ask_to_activate", "enable", "disable"].some(perm => hasPermission(this._addon, perm));
+
+      if (!this._addon.isActive) {
+        menulist.selectedItem = neverItem;
+      } else if (this._addon.userDisabled == AddonManager.STATE_ASK_TO_ACTIVATE) {
+        menulist.selectedItem = askItem;
+      } else {
+        menulist.selectedItem = alwaysItem;
+      }
+
+      menulist.disabled = !hasActivatePermission;
+      menulist.hidden = false;
+      menulist.classList.add('no-auto-hide');
+    } else {
+      menulist.hidden = true;
+    }
+
+    this.node.setAttribute("active", this._addon.isActive);
+  },
+
+  clearLoading: function() {
+    if (this._loadingTimer) {
+      clearTimeout(this._loadingTimer);
+      this._loadingTimer = null;
+    }
+
+    this.node.removeAttribute("loading-extended");
+  },
+
+  emptySettingsRows: function() {
+    var lastRow = document.getElementById("detail-downloads");
+    var rows = lastRow.parentNode;
+    while (lastRow.nextSibling)
+      rows.removeChild(rows.lastChild);
+  },
+
+  fillSettingsRows: function(aScrollToPreferences, aCallback) {
+    this.emptySettingsRows();
+    if (!hasInlineOptions(this._addon)) {
+      if (aCallback)
+        aCallback();
+      return;
+    }
+
+    // We can't use a promise for this, since some code (especially in tests)
+    // relies on us finishing before the ViewChanged event bubbles up to its
+    // listeners, and promises resolve asynchronously.
+    let whenViewLoaded = callback => {
+      if (gViewController.displayedView.hasAttribute("loading")) {
+        gDetailView.node.addEventListener("ViewChanged", function viewChangedEventListener() {
+          gDetailView.node.removeEventListener("ViewChanged", viewChangedEventListener);
+          callback();
+        });
+      } else {
+        callback();
+      }
+    };
+
+    let finish = (firstSetting) => {
+      // Ensure the page has loaded and force the XBL bindings to be synchronously applied,
+      // then notify observers.
+      whenViewLoaded(() => {
+        if (firstSetting)
+          firstSetting.clientTop;
+        Services.obs.notifyObservers(document,
+                                     AddonManager.OPTIONS_NOTIFICATION_DISPLAYED,
+                                     this._addon.id);
+        if (aScrollToPreferences)
+          gDetailView.scrollToPreferencesRows();
+      });
+    }
+
+    // This function removes and returns the text content of aNode without
+    // removing any child elements. Removing the text nodes ensures any XBL
+    // bindings apply properly.
+    function stripTextNodes(aNode) {
+      var text = '';
+      for (var i = 0; i < aNode.childNodes.length; i++) {
+        if (aNode.childNodes[i].nodeType != document.ELEMENT_NODE) {
+          text += aNode.childNodes[i].textContent;
+          aNode.removeChild(aNode.childNodes[i--]);
+        } else {
+          text += stripTextNodes(aNode.childNodes[i]);
+        }
+      }
+      return text;
+    }
+
+    var rows = document.getElementById("detail-downloads").parentNode;
+
+    try {
+      if (this._addon.optionsType == AddonManager.OPTIONS_TYPE_INLINE_BROWSER) {
+        whenViewLoaded(() => {
+          this.createOptionsBrowser(rows).then(browser => {
+            // Make sure the browser is unloaded as soon as we change views,
+            // rather than waiting for the next detail view to load.
+            document.addEventListener("ViewChanged", function viewChangedEventListener() {
+              document.removeEventListener("ViewChanged", viewChangedEventListener);
+              browser.remove();
+            });
+
+            finish(browser);
+          });
+        });
+
+        if (aCallback)
+          aCallback();
+      } else {
+        var xhr = new XMLHttpRequest();
+        xhr.open("GET", this._addon.optionsURL, true);
+        xhr.responseType = "xml";
+        xhr.onload = (function() {
+          var xml = xhr.responseXML;
+          var settings = xml.querySelectorAll(":root > setting");
+
+          var firstSetting = null;
+          for (var setting of settings) {
+
+            var desc = stripTextNodes(setting).trim();
+            if (!setting.hasAttribute("desc"))
+              setting.setAttribute("desc", desc);
+
+            var type = setting.getAttribute("type");
+            if (type == "file" || type == "directory")
+              setting.setAttribute("fullpath", "true");
+
+            setting = document.importNode(setting, true);
+            var style = setting.getAttribute("style");
+            if (style) {
+              setting.removeAttribute("style");
+              setting.setAttribute("style", style);
+            }
+
+            rows.appendChild(setting);
+            var visible = window.getComputedStyle(setting, null).getPropertyValue("display") != "none";
+            if (!firstSetting && visible) {
+              setting.setAttribute("first-row", true);
+              firstSetting = setting;
+            }
+          }
+
+          finish(firstSetting);
+
+          if (aCallback)
+            aCallback();
+        }).bind(this);
+        xhr.onerror = function(aEvent) {
+          Cu.reportError("Error " + aEvent.target.status +
+                         " occurred while receiving " + this._addon.optionsURL);
+          if (aCallback)
+            aCallback();
+        };
+        xhr.send();
+      }
+    } catch (e) {
+      Cu.reportError(e);
+      if (aCallback)
+        aCallback();
+    }
+  },
+
+  scrollToPreferencesRows: function() {
+    // We find this row, rather than remembering it from above,
+    // in case it has been changed by the observers.
+    let firstRow = gDetailView.node.querySelector('setting[first-row="true"]');
+    if (firstRow) {
+      let top = firstRow.boxObject.y;
+      top -= parseInt(window.getComputedStyle(firstRow, null).getPropertyValue("margin-top"));
+
+      let detailViewBoxObject = gDetailView.node.boxObject;
+      top -= detailViewBoxObject.y;
+
+      detailViewBoxObject.scrollTo(0, top);
+    }
+  },
+
+  createOptionsBrowser: function(parentNode) {
+    let browser = document.createElement("browser");
+    browser.setAttribute("type", "content");
+    browser.setAttribute("disableglobalhistory", "true");
+    browser.setAttribute("class", "inline-options-browser");
+
+    return new Promise((resolve, reject) => {
+      let messageListener = {
+        receiveMessage({name, data}) {
+          if (name === "Extension:BrowserResized")
+            browser.style.height = `${data.height}px`;
+          else if (name === "Extension:BrowserContentLoaded")
+            resolve(browser);
+        },
+      };
+
+      let onload = () => {
+        browser.removeEventListener("load", onload, true);
+
+        let mm = new FakeFrameMessageManager(browser);
+        mm.loadFrameScript("chrome://extensions/content/ext-browser-content.js",
+                           false);
+        mm.addMessageListener("Extension:BrowserContentLoaded", messageListener);
+        mm.addMessageListener("Extension:BrowserResized", messageListener);
+        mm.sendAsyncMessage("Extension:InitBrowser", {fixedWidth: true});
+
+        browser.setAttribute("src", this._addon.optionsURL);
+      };
+      browser.addEventListener("load", onload, true);
+      browser.addEventListener("error", reject);
+
+      parentNode.appendChild(browser);
+    });
+  },
+
+  getSelectedAddon: function() {
+    return this._addon;
+  },
+
+  onEnabling: function() {
+    this.updateState();
+  },
+
+  onEnabled: function() {
+    this.updateState();
+    this.fillSettingsRows();
+  },
+
+  onDisabling: function(aNeedsRestart) {
+    this.updateState();
+    if (!aNeedsRestart && hasInlineOptions(this._addon)) {
+      Services.obs.notifyObservers(document,
+                                   AddonManager.OPTIONS_NOTIFICATION_HIDDEN,
+                                   this._addon.id);
+    }
+  },
+
+  onDisabled: function() {
+    this.updateState();
+    this.emptySettingsRows();
+  },
+
+  onUninstalling: function() {
+    this.updateState();
+  },
+
+  onUninstalled: function() {
+    gViewController.popState();
+  },
+
+  onOperationCancelled: function() {
+    this.updateState();
+  },
+
+  onPropertyChanged: function(aProperties) {
+    if (aProperties.indexOf("applyBackgroundUpdates") != -1) {
+      this._autoUpdate.value = this._addon.applyBackgroundUpdates;
+      let hideFindUpdates = AddonManager.shouldAutoUpdate(this._addon);
+      document.getElementById("detail-findUpdates-btn").hidden = hideFindUpdates;
+    }
+
+    if (aProperties.indexOf("appDisabled") != -1 ||
+        aProperties.indexOf("signedState") != -1 ||
+        aProperties.indexOf("userDisabled") != -1)
+      this.updateState();
+  },
+
+  onExternalInstall: function(aAddon, aExistingAddon, aNeedsRestart) {
+    // Only care about upgrades for the currently displayed add-on
+    if (!aExistingAddon || aExistingAddon.id != this._addon.id)
+      return;
+
+    if (!aNeedsRestart)
+      this._updateView(aAddon, false);
+    else
+      this.updateState();
+  },
+
+  onInstallCancelled: function(aInstall) {
+    if (aInstall.addon.id == this._addon.id)
+      gViewController.popState();
+  }
+};
+
+
+var gUpdatesView = {
+  node: null,
+  _listBox: null,
+  _emptyNotice: null,
+  _sorters: null,
+  _updateSelected: null,
+  _categoryItem: null,
+
+  initialize: function() {
+    this.node = document.getElementById("updates-view");
+    this._listBox = document.getElementById("updates-list");
+    this._emptyNotice = document.getElementById("updates-list-empty");
+    this._sorters = document.getElementById("updates-sorters");
+    this._sorters.handler = this;
+
+    this._categoryItem = gCategories.get("addons://updates/available");
+
+    this._updateSelected = document.getElementById("update-selected-btn");
+    this._updateSelected.addEventListener("command", function() {
+      gUpdatesView.installSelected();
+    }, false);
+
+    this.updateAvailableCount(true);
+
+    AddonManager.addAddonListener(this);
+    AddonManager.addInstallListener(this);
+  },
+
+  shutdown: function() {
+    AddonManager.removeAddonListener(this);
+    AddonManager.removeInstallListener(this);
+  },
+
+  show: function(aType, aRequest) {
+    document.getElementById("empty-availableUpdates-msg").hidden = aType != "available";
+    document.getElementById("empty-recentUpdates-msg").hidden = aType != "recent";
+    this.showEmptyNotice(false);
+
+    while (this._listBox.itemCount > 0)
+      this._listBox.removeItemAt(0);
+
+    this.node.setAttribute("updatetype", aType);
+    if (aType == "recent")
+      this._showRecentUpdates(aRequest);
+    else
+      this._showAvailableUpdates(false, aRequest);
+  },
+
+  hide: function() {
+    this._updateSelected.hidden = true;
+    this._categoryItem.disabled = this._categoryItem.badgeCount == 0;
+    doPendingUninstalls(this._listBox);
+  },
+
+  _showRecentUpdates: function(aRequest) {
+    AddonManager.getAllAddons((aAddonsList) => {
+      if (gViewController && aRequest != gViewController.currentViewRequest)
+        return;
+
+      var elements = [];
+      let threshold = Date.now() - UPDATES_RECENT_TIMESPAN;
+      for (let addon of aAddonsList) {
+        if (addon.hidden || !addon.updateDate || addon.updateDate.getTime() < threshold)
+          continue;
+
+        elements.push(createItem(addon));
+      }
+
+      this.showEmptyNotice(elements.length == 0);
+      if (elements.length > 0) {
+        sortElements(elements, [this._sorters.sortBy], this._sorters.ascending);
+        for (let element of elements)
+          this._listBox.appendChild(element);
+      }
+
+      gViewController.notifyViewChanged();
+    });
+  },
+
+  _showAvailableUpdates: function(aIsRefresh, aRequest) {
+    /* Disable the Update Selected button so it can't get clicked
+       before everything is initialized asynchronously.
+       It will get re-enabled by maybeDisableUpdateSelected(). */
+    this._updateSelected.disabled = true;
+
+    AddonManager.getAllInstalls((aInstallsList) => {
+      if (!aIsRefresh && gViewController && aRequest &&
+          aRequest != gViewController.currentViewRequest)
+        return;
+
+      if (aIsRefresh) {
+        this.showEmptyNotice(false);
+        this._updateSelected.hidden = true;
+
+        while (this._listBox.childNodes.length > 0)
+          this._listBox.removeChild(this._listBox.firstChild);
+      }
+
+      var elements = [];
+
+      for (let install of aInstallsList) {
+        if (!this.isManualUpdate(install))
+          continue;
+
+        let item = createItem(install.existingAddon);
+        item.setAttribute("upgrade", true);
+        item.addEventListener("IncludeUpdateChanged", () => {
+          this.maybeDisableUpdateSelected();
+        }, false);
+        elements.push(item);
+      }
+
+      this.showEmptyNotice(elements.length == 0);
+      if (elements.length > 0) {
+        this._updateSelected.hidden = false;
+        sortElements(elements, [this._sorters.sortBy], this._sorters.ascending);
+        for (let element of elements)
+          this._listBox.appendChild(element);
+      }
+
+      // ensure badge count is in sync
+      this._categoryItem.badgeCount = this._listBox.itemCount;
+
+      gViewController.notifyViewChanged();
+    });
+  },
+
+  showEmptyNotice: function(aShow) {
+    this._emptyNotice.hidden = !aShow;
+    this._listBox.hidden = aShow;
+  },
+
+  isManualUpdate: function(aInstall, aOnlyAvailable) {
+    var isManual = aInstall.existingAddon &&
+                   !AddonManager.shouldAutoUpdate(aInstall.existingAddon);
+    if (isManual && aOnlyAvailable)
+      return isInState(aInstall, "available");
+    return isManual;
+  },
+
+  maybeRefresh: function() {
+    if (gViewController.currentViewId == "addons://updates/available")
+      this._showAvailableUpdates(true);
+    this.updateAvailableCount();
+  },
+
+  updateAvailableCount: function(aInitializing) {
+    if (aInitializing)
+      gPendingInitializations++;
+    AddonManager.getAllInstalls((aInstallsList) => {
+      var count = aInstallsList.filter(aInstall => {
+        return this.isManualUpdate(aInstall, true);
+      }).length;
+      this._categoryItem.disabled = gViewController.currentViewId != "addons://updates/available" &&
+                                    count == 0;
+      this._categoryItem.badgeCount = count;
+      if (aInitializing)
+        notifyInitialized();
+    });
+  },
+
+  maybeDisableUpdateSelected: function() {
+    for (let item of this._listBox.childNodes) {
+      if (item.includeUpdate) {
+        this._updateSelected.disabled = false;
+        return;
+      }
+    }
+    this._updateSelected.disabled = true;
+  },
+
+  installSelected: function() {
+    for (let item of this._listBox.childNodes) {
+      if (item.includeUpdate)
+        item.upgrade();
+    }
+
+    this._updateSelected.disabled = true;
+  },
+
+  getSelectedAddon: function() {
+    var item = this._listBox.selectedItem;
+    if (item)
+      return item.mAddon;
+    return null;
+  },
+
+  getListItemForID: function(aId) {
+    var listitem = this._listBox.firstChild;
+    while (listitem) {
+      if (listitem.mAddon.id == aId)
+        return listitem;
+      listitem = listitem.nextSibling;
+    }
+    return null;
+  },
+
+  onSortChanged: function(aSortBy, aAscending) {
+    sortList(this._listBox, aSortBy, aAscending);
+  },
+
+  onNewInstall: function(aInstall) {
+    if (!this.isManualUpdate(aInstall))
+      return;
+    this.maybeRefresh();
+  },
+
+  onInstallStarted: function(aInstall) {
+    this.updateAvailableCount();
+  },
+
+  onInstallCancelled: function(aInstall) {
+    if (!this.isManualUpdate(aInstall))
+      return;
+    this.maybeRefresh();
+  },
+
+  onPropertyChanged: function(aAddon, aProperties) {
+    if (aProperties.indexOf("applyBackgroundUpdates") != -1)
+      this.updateAvailableCount();
+  }
+};
+
+var gDragDrop = {
+  onDragOver: function(aEvent) {
+    var types = aEvent.dataTransfer.types;
+    if (types.includes("text/uri-list") ||
+        types.includes("text/x-moz-url") ||
+        types.includes("application/x-moz-file"))
+      aEvent.preventDefault();
+  },
+
+  onDrop: function(aEvent) {
+    var dataTransfer = aEvent.dataTransfer;
+    var urls = [];
+
+    // Convert every dropped item into a url
+    for (var i = 0; i < dataTransfer.mozItemCount; i++) {
+      var url = dataTransfer.mozGetDataAt("text/uri-list", i);
+      if (url) {
+        urls.push(url);
+        continue;
+      }
+
+      url = dataTransfer.mozGetDataAt("text/x-moz-url", i);
+      if (url) {
+        urls.push(url.split("\n")[0]);
+        continue;
+      }
+
+      var file = dataTransfer.mozGetDataAt("application/x-moz-file", i);
+      if (file) {
+        urls.push(Services.io.newFileURI(file).spec);
+        continue;
+      }
+    }
+
+    var pos = 0;
+    var installs = [];
+
+    function buildNextInstall() {
+      if (pos == urls.length) {
+        if (installs.length > 0) {
+          // Display the normal install confirmation for the installs
+          let webInstaller = Cc["@mozilla.org/addons/web-install-listener;1"].
+                             getService(Ci.amIWebInstallListener);
+          webInstaller.onWebInstallRequested(getBrowserElement(),
+                                             document.documentURIObject,
+                                             installs);
+        }
+        return;
+      }
+
+      AddonManager.getInstallForURL(urls[pos++], function(aInstall) {
+        installs.push(aInstall);
+        buildNextInstall();
+      }, "application/x-xpinstall");
+    }
+
+    buildNextInstall();
+
+    aEvent.preventDefault();
+  }
+};
diff --git a/toolkit/mozapps/webextensions/content/extensions.xml b/toolkit/mozapps/webextensions/content/extensions.xml
new file mode 100644
index 000000000..b49645cf0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/extensions.xml
@@ -0,0 +1,2008 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+
+<!DOCTYPE page [
+<!ENTITY % extensionsDTD SYSTEM "chrome://mozapps/locale/extensions/extensions.dtd">
+%extensionsDTD;
+]>
+
+<!-- import-globals-from extensions.js -->
+
+<bindings id="addonBindings"
+          xmlns="http://www.mozilla.org/xbl"
+          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+          xmlns:xbl="http://www.mozilla.org/xbl">
+
+
+  <!-- Rating - displays current/average rating, allows setting user rating -->
+  <binding id="rating">
+    <content>
+      <xul:image class="star"
+                 onmouseover="document.getBindingParent(this)._hover(1);"
+                 onclick="document.getBindingParent(this).userRating = 1;"/>
+      <xul:image class="star"
+                 onmouseover="document.getBindingParent(this)._hover(2);"
+                 onclick="document.getBindingParent(this).userRating = 2;"/>
+      <xul:image class="star"
+                 onmouseover="document.getBindingParent(this)._hover(3);"
+                 onclick="document.getBindingParent(this).userRating = 3;"/>
+      <xul:image class="star"
+                 onmouseover="document.getBindingParent(this)._hover(4);"
+                 onclick="document.getBindingParent(this).userRating = 4;"/>
+      <xul:image class="star"
+                 onmouseover="document.getBindingParent(this)._hover(5);"
+                 onclick="document.getBindingParent(this).userRating = 5;"/>
+    </content>
+
+    <implementation>
+      <constructor><![CDATA[
+        this._updateStars();
+      ]]></constructor>
+
+      <property name="stars" readonly="true">
+        <getter><![CDATA[
+          return document.getAnonymousNodes(this);
+        ]]></getter>
+      </property>
+
+      <property name="averageRating">
+        <getter><![CDATA[
+          if (this.hasAttribute("averagerating"))
+            return this.getAttribute("averagerating");
+          return -1;
+        ]]></getter>
+        <setter><![CDATA[
+          this.setAttribute("averagerating", val);
+          if (this.showRating == "average")
+            this._updateStars();
+        ]]></setter>
+      </property>
+
+      <property name="userRating">
+        <getter><![CDATA[
+          if (this.hasAttribute("userrating"))
+            return this.getAttribute("userrating");
+          return -1;
+        ]]></getter>
+        <setter><![CDATA[
+          if (this.showRating != "user")
+            return;
+          this.setAttribute("userrating", val);
+          if (this.showRating == "user")
+            this._updateStars();
+        ]]></setter>
+      </property>
+
+      <property name="showRating">
+        <getter><![CDATA[
+          if (this.hasAttribute("showrating"))
+            return this.getAttribute("showrating");
+          return "average";
+        ]]></getter>
+        <setter><![CDATA[
+          if (val != "average" || val != "user")
+            throw Components.Exception("Invalid value", Components.results.NS_ERROR_ILLEGAL_VALUE);
+          this.setAttribute("showrating", val);
+          this._updateStars();
+        ]]></setter>
+      </property>
+
+      <method name="_updateStars">
+        <body><![CDATA[
+          var stars = this.stars;
+          var rating = this[this.showRating + "Rating"];
+          // average ratings can be non-whole numbers, round them so they
+          // match to their closest star
+          rating = Math.round(rating);
+          for (let i = 0; i < stars.length; i++)
+            stars[i].setAttribute("on", rating > i);
+        ]]></body>
+      </method>
+
+      <method name="_hover">
+        <parameter name="aScore"/>
+        <body><![CDATA[
+          if (this.showRating != "user")
+            return;
+          var stars = this.stars;
+          for (let i = 0; i < stars.length; i++)
+            stars[i].setAttribute("on", i <= (aScore -1));
+        ]]></body>
+      </method>
+
+    </implementation>
+
+    <handlers>
+      <handler event="mouseout">
+        this._updateStars();
+      </handler>
+    </handlers>
+  </binding>
+
+  <!-- Download progress - shows graphical progress of download and any
+       related status message. -->
+  <binding id="download-progress">
+    <content>
+      <xul:stack flex="1">
+        <xul:hbox flex="1">
+          <xul:hbox class="start-cap"/>
+          <xul:progressmeter anonid="progress" class="progress" flex="1"
+                             min="0" max="100"/>
+          <xul:hbox class="end-cap"/>
+        </xul:hbox>
+        <xul:hbox class="status-container">
+          <xul:spacer flex="1"/>
+          <xul:label anonid="status" class="status"/>
+          <xul:spacer flex="1"/>
+          <xul:button anonid="cancel-btn" class="cancel"
+                      tooltiptext="&progress.cancel.tooltip;"
+                      oncommand="document.getBindingParent(this).cancel();"/>
+        </xul:hbox>
+      </xul:stack>
+    </content>
+
+    <implementation>
+      <constructor><![CDATA[
+        var progress = 0;
+        if (this.hasAttribute("progress"))
+          progress = parseInt(this.getAttribute("progress"));
+        this.progress = progress;
+      ]]></constructor>
+
+      <field name="_progress">
+        document.getAnonymousElementByAttribute(this, "anonid", "progress");
+      </field>
+      <field name="_cancel">
+        document.getAnonymousElementByAttribute(this, "anonid", "cancel-btn");
+      </field>
+      <field name="_status">
+        document.getAnonymousElementByAttribute(this, "anonid", "status");
+      </field>
+
+      <property name="progress">
+        <getter><![CDATA[
+          return this._progress.value;
+        ]]></getter>
+        <setter><![CDATA[
+          this._progress.value = val;
+          if (val == this._progress.max)
+            this.setAttribute("complete", true);
+          else
+            this.removeAttribute("complete");
+        ]]></setter>
+      </property>
+
+      <property name="maxProgress">
+        <getter><![CDATA[
+          return this._progress.max;
+        ]]></getter>
+        <setter><![CDATA[
+          if (val == -1) {
+            this._progress.mode = "undetermined";
+          } else {
+            this._progress.mode = "determined";
+            this._progress.max = val;
+          }
+          this.setAttribute("mode", this._progress.mode);
+        ]]></setter>
+      </property>
+
+      <property name="status">
+        <getter><![CDATA[
+          return this._status.value;
+        ]]></getter>
+        <setter><![CDATA[
+          this._status.value = val;
+        ]]></setter>
+      </property>
+
+      <method name="cancel">
+        <body><![CDATA[
+          this.mInstall.cancel();
+        ]]></body>
+      </method>
+    </implementation>
+  </binding>
+
+
+  <!-- Sorters - displays and controls the sort state of a list. -->
+  <binding id="sorters">
+    <content orient="horizontal">
+      <xul:button anonid="name-btn" class="sorter"
+                  label="&sort.name.label;" tooltiptext="&sort.name.tooltip;"
+                  oncommand="this.parentNode._handleChange('name');"/>
+      <xul:button anonid="date-btn" class="sorter"
+                  label="&sort.dateUpdated.label;"
+                  tooltiptext="&sort.dateUpdated.tooltip;"
+                  oncommand="this.parentNode._handleChange('updateDate');"/>
+      <xul:button anonid="price-btn" class="sorter" hidden="true"
+                  label="&sort.price.label;"
+                  tooltiptext="&sort.price.tooltip;"
+                  oncommand="this.parentNode._handleChange('purchaseAmount');"/>
+      <xul:button anonid="relevance-btn" class="sorter" hidden="true"
+                  label="&sort.relevance.label;"
+                  tooltiptext="&sort.relevance.tooltip;"
+                  oncommand="this.parentNode._handleChange('relevancescore');"/>
+    </content>
+
+    <implementation>
+      <constructor><![CDATA[
+        if (!this.hasAttribute("sortby"))
+          this.setAttribute("sortby", "name");
+
+        if (this.getAttribute("showrelevance") == "true")
+          this._btnRelevance.hidden = false;
+
+        if (this.getAttribute("showprice") == "true")
+          this._btnPrice.hidden = false;
+
+        this._refreshState();
+      ]]></constructor>
+
+      <field name="handler">null</field>
+      <field name="_btnName">
+        document.getAnonymousElementByAttribute(this, "anonid", "name-btn");
+      </field>
+      <field name="_btnDate">
+        document.getAnonymousElementByAttribute(this, "anonid", "date-btn");
+      </field>
+      <field name="_btnPrice">
+        document.getAnonymousElementByAttribute(this, "anonid", "price-btn");
+      </field>
+      <field name="_btnRelevance">
+        document.getAnonymousElementByAttribute(this, "anonid", "relevance-btn");
+      </field>
+
+      <property name="sortBy">
+        <getter><![CDATA[
+          return this.getAttribute("sortby");
+        ]]></getter>
+        <setter><![CDATA[
+          if (val != this.sortBy) {
+            this.setAttribute("sortBy", val);
+            this._refreshState();
+          }
+        ]]></setter>
+      </property>
+
+      <property name="ascending">
+        <getter><![CDATA[
+          return (this.getAttribute("ascending") == "true");
+        ]]></getter>
+        <setter><![CDATA[
+          val = !!val;
+          if (val != this.ascending) {
+            this.setAttribute("ascending", val);
+            this._refreshState();
+          }
+        ]]></setter>
+      </property>
+
+      <property name="showrelevance">
+        <getter><![CDATA[
+          return (this.getAttribute("showrelevance") == "true");
+        ]]></getter>
+        <setter><![CDATA[
+          val = !!val;
+          this.setAttribute("showrelevance", val);
+          this._btnRelevance.hidden = !val;
+        ]]></setter>
+      </property>
+
+      <property name="showprice">
+        <getter><![CDATA[
+          return (this.getAttribute("showprice") == "true");
+        ]]></getter>
+        <setter><![CDATA[
+          val = !!val;
+          this.setAttribute("showprice", val);
+          this._btnPrice.hidden = !val;
+        ]]></setter>
+      </property>
+
+      <method name="setSort">
+        <parameter name="aSort"/>
+        <parameter name="aAscending"/>
+        <body><![CDATA[
+          var sortChanged = false;
+          if (aSort != this.sortBy) {
+            this.setAttribute("sortby", aSort);
+            sortChanged = true;
+          }
+
+          aAscending = !!aAscending;
+          if (this.ascending != aAscending) {
+            this.setAttribute("ascending", aAscending);
+            sortChanged = true;
+          }
+
+          if (sortChanged)
+            this._refreshState();
+        ]]></body>
+      </method>
+
+      <method name="_handleChange">
+        <parameter name="aSort"/>
+        <body><![CDATA[
+          const ASCENDING_SORT_FIELDS = ["name", "purchaseAmount"];
+
+          // Toggle ascending if sort by is not changing, otherwise
+          // name sorting defaults to ascending, others to descending
+          if (aSort == this.sortBy)
+            this.ascending = !this.ascending;
+          else
+            this.setSort(aSort, ASCENDING_SORT_FIELDS.indexOf(aSort) >= 0);
+        ]]></body>
+      </method>
+
+      <method name="_refreshState">
+        <body><![CDATA[
+          var sortBy = this.sortBy;
+          var checkState = this.ascending ? 2 : 1;
+
+          if (sortBy == "name") {
+            this._btnName.checkState = checkState;
+            this._btnName.checked = true;
+          } else {
+            this._btnName.checkState = 0;
+            this._btnName.checked = false;
+          }
+
+          if (sortBy == "updateDate") {
+            this._btnDate.checkState = checkState;
+            this._btnDate.checked = true;
+          } else {
+            this._btnDate.checkState = 0;
+            this._btnDate.checked = false;
+          }
+
+          if (sortBy == "purchaseAmount") {
+            this._btnPrice.checkState = checkState;
+            this._btnPrice.checked = true;
+          } else {
+            this._btnPrice.checkState = 0;
+            this._btnPrice.checked = false;
+          }
+
+          if (sortBy == "relevancescore") {
+            this._btnRelevance.checkState = checkState;
+            this._btnRelevance.checked = true;
+          } else {
+            this._btnRelevance.checkState = 0;
+            this._btnRelevance.checked = false;
+          }
+
+          if (this.handler && "onSortChanged" in this.handler)
+            this.handler.onSortChanged(sortBy, this.ascending);
+        ]]></body>
+      </method>
+    </implementation>
+  </binding>
+
+
+  <!-- Categories list - displays the list of categories on the left pane. -->
+  <binding id="categories-list"
+           extends="chrome://global/content/bindings/richlistbox.xml#richlistbox">
+    <implementation>
+      <!-- This needs to be overridden to allow the fancy animation while not
+           allowing that item to be selected when hiding.  -->
+      <method name="_canUserSelect">
+        <parameter name="aItem"/>
+        <body>
+        <![CDATA[
+          if (aItem.hasAttribute("disabled") &&
+              aItem.getAttribute("disabled") == "true")
+            return false;
+          var style = document.defaultView.getComputedStyle(aItem, "");
+          return style.display != "none" && style.visibility == "visible";
+        ]]>
+        </body>
+      </method>
+    </implementation>
+  </binding>
+
+
+  <!-- Category item - an item in the category list. -->
+  <binding id="category"
+           extends="chrome://global/content/bindings/richlistbox.xml#richlistitem">
+    <content align="center">
+      <xul:image anonid="icon" class="category-icon"/>
+      <xul:label anonid="name" class="category-name" flex="1" xbl:inherits="value=name"/>
+      <xul:label anonid="badge" class="category-badge" xbl:inherits="value=count"/>
+    </content>
+
+    <implementation>
+      <constructor><![CDATA[
+        if (!this.hasAttribute("count"))
+          this.setAttribute("count", 0);
+      ]]></constructor>
+
+      <property name="badgeCount">
+        <getter><![CDATA[
+          return this.getAttribute("count");
+        ]]></getter>
+        <setter><![CDATA[
+          if (this.getAttribute("count") == val)
+            return;
+
+          this.setAttribute("count", val);
+          var event = document.createEvent("Events");
+          event.initEvent("CategoryBadgeUpdated", true, true);
+          this.dispatchEvent(event);
+        ]]></setter>
+      </property>
+    </implementation>
+  </binding>
+
+
+  <!-- Creator link - Name of a user/developer, providing a link if relevant. -->
+  <binding id="creator-link">
+    <content>
+      <xul:label anonid="label" value="&addon.createdBy.label;"/>
+      <xul:label anonid="creator-link" class="creator-link text-link"/>
+      <xul:label anonid="creator-name" class="creator-name"/>
+    </content>
+
+    <implementation>
+      <constructor><![CDATA[
+        if (this.hasAttribute("nameonly") &&
+            this.getAttribute("nameonly") == "true") {
+          this._label.hidden = true;
+        }
+      ]]></constructor>
+
+      <field name="_label">
+        document.getAnonymousElementByAttribute(this, "anonid", "label");
+      </field>
+      <field name="_creatorLink">
+        document.getAnonymousElementByAttribute(this, "anonid", "creator-link");
+      </field>
+      <field name="_creatorName">
+        document.getAnonymousElementByAttribute(this, "anonid", "creator-name");
+      </field>
+
+      <method name="setCreator">
+        <parameter name="aCreator"/>
+        <parameter name="aHomepageURL"/>
+        <body><![CDATA[
+          if (!aCreator) {
+            this.collapsed = true;
+            return;
+          }
+          this.collapsed = false;
+          var url = aCreator.url || aHomepageURL;
+          var showLink = !!url;
+          if (showLink) {
+            this._creatorLink.value = aCreator.name;
+            this._creatorLink.href = url;
+          } else {
+            this._creatorName.value = aCreator.name;
+          }
+          this._creatorLink.hidden = !showLink;
+          this._creatorName.hidden = showLink;
+        ]]></body>
+      </method>
+    </implementation>
+  </binding>
+
+
+  <!-- Install status - Displays the status of an install/upgrade. -->
+  <binding id="install-status">
+    <content>
+      <xul:label anonid="message"/>
+      <xul:progressmeter anonid="progress" class="download-progress"/>
+      <xul:button anonid="purchase-remote-btn" hidden="true"
+                  class="addon-control"
+                  oncommand="document.getBindingParent(this).purchaseRemote();"/>
+      <xul:button anonid="install-remote-btn" hidden="true"
+                  class="addon-control install" label="&addon.install.label;"
+                  tooltiptext="&addon.install.tooltip;"
+                  oncommand="document.getBindingParent(this).installRemote();"/>
+    </content>
+
+    <implementation>
+      <constructor><![CDATA[
+        if (this.mInstall)
+          this.initWithInstall(this.mInstall);
+        else if (this.mControl.mAddon.install)
+          this.initWithInstall(this.mControl.mAddon.install);
+        else
+          this.refreshState();
+      ]]></constructor>
+
+      <destructor><![CDATA[
+        if (this.mInstall)
+          this.mInstall.removeListener(this);
+      ]]></destructor>
+
+      <field name="_message">
+        document.getAnonymousElementByAttribute(this, "anonid", "message");
+      </field>
+      <field name="_progress">
+        document.getAnonymousElementByAttribute(this, "anonid", "progress");
+      </field>
+      <field name="_purchaseRemote">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "purchase-remote-btn");
+      </field>
+      <field name="_installRemote">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "install-remote-btn");
+      </field>
+      <field name="_restartNeeded">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "restart-needed");
+      </field>
+      <field name="_undo">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "undo-btn");
+      </field>
+
+      <method name="initWithInstall">
+        <parameter name="aInstall"/>
+        <body><![CDATA[
+          if (this.mInstall) {
+            this.mInstall.removeListener(this);
+            this.mInstall = null;
+          }
+          this.mInstall = aInstall;
+          this._progress.mInstall = aInstall;
+          this.refreshState();
+          this.mInstall.addListener(this);
+        ]]></body>
+      </method>
+
+      <method name="refreshState">
+        <body><![CDATA[
+          var showInstallRemote = false;
+          var showPurchase = false;
+
+          if (this.mInstall) {
+
+            switch (this.mInstall.state) {
+              case AddonManager.STATE_AVAILABLE:
+                if (this.mControl.getAttribute("remote") != "true")
+                  break;
+
+                this._progress.hidden = true;
+                showInstallRemote = true;
+                break;
+              case AddonManager.STATE_DOWNLOADING:
+                this.showMessage("installDownloading");
+                break;
+              case AddonManager.STATE_CHECKING:
+                this.showMessage("installVerifying");
+                break;
+              case AddonManager.STATE_DOWNLOADED:
+                this.showMessage("installDownloaded");
+                break;
+              case AddonManager.STATE_DOWNLOAD_FAILED:
+                // XXXunf expose what error occured (bug 553487)
+                this.showMessage("installDownloadFailed", true);
+                break;
+              case AddonManager.STATE_INSTALLING:
+                this.showMessage("installInstalling");
+                break;
+              case AddonManager.STATE_INSTALL_FAILED:
+                // XXXunf expose what error occured (bug 553487)
+                this.showMessage("installFailed", true);
+                break;
+              case AddonManager.STATE_CANCELLED:
+                this.showMessage("installCancelled", true);
+                break;
+            }
+
+          } else if (this.mControl.mAddon.purchaseURL) {
+            this._progress.hidden = true;
+            showPurchase = true;
+            this._purchaseRemote.label =
+              gStrings.ext.formatStringFromName("addon.purchase.label",
+                [this.mControl.mAddon.purchaseDisplayAmount], 1);
+            this._purchaseRemote.tooltiptext =
+              gStrings.ext.GetStringFromName("addon.purchase.tooltip");
+          }
+
+          this._purchaseRemote.hidden = !showPurchase;
+          this._installRemote.hidden = !showInstallRemote;
+
+          if ("refreshInfo" in this.mControl)
+            this.mControl.refreshInfo();
+        ]]></body>
+      </method>
+
+      <method name="showMessage">
+        <parameter name="aMsgId"/>
+        <parameter name="aHideProgress"/>
+        <body><![CDATA[
+          this._message.setAttribute("hidden", !aHideProgress);
+          this._progress.setAttribute("hidden", !!aHideProgress);
+
+          var msg = gStrings.ext.GetStringFromName(aMsgId);
+          if (aHideProgress)
+            this._message.value = msg;
+          else
+            this._progress.status = msg;
+        ]]></body>
+      </method>
+
+      <method name="purchaseRemote">
+        <body><![CDATA[
+          openURL(this.mControl.mAddon.purchaseURL);
+        ]]></body>
+      </method>
+
+      <method name="installRemote">
+        <body><![CDATA[
+          if (this.mControl.getAttribute("remote") != "true")
+            return;
+
+          if (this.mControl.mAddon.eula) {
+            var data = {
+              addon: this.mControl.mAddon,
+              accepted: false
+            };
+            window.openDialog("chrome://mozapps/content/extensions/eula.xul", "_blank",
+                              "chrome,dialog,modal,centerscreen,resizable=no", data);
+            if (!data.accepted)
+              return;
+          }
+
+          delete this.mControl.mAddon;
+          this.mControl.mInstall = this.mInstall;
+          this.mControl.setAttribute("status", "installing");
+          this.mInstall.install();
+        ]]></body>
+      </method>
+
+      <method name="undoAction">
+        <body><![CDATA[
+          if (!this.mAddon)
+            return;
+          var pending = this.mAddon.pendingOperations;
+          if (pending & AddonManager.PENDING_ENABLE)
+            this.mAddon.userDisabled = true;
+          else if (pending & AddonManager.PENDING_DISABLE)
+            this.mAddon.userDisabled = false;
+          this.refreshState();
+        ]]></body>
+      </method>
+
+      <method name="onDownloadStarted">
+        <body><![CDATA[
+          this.refreshState();
+        ]]></body>
+      </method>
+
+      <method name="onDownloadEnded">
+        <body><![CDATA[
+          this.refreshState();
+        ]]></body>
+      </method>
+
+      <method name="onDownloadFailed">
+        <body><![CDATA[
+          this.refreshState();
+        ]]></body>
+      </method>
+
+      <method name="onDownloadProgress">
+        <body><![CDATA[
+          this._progress.maxProgress = this.mInstall.maxProgress;
+          this._progress.progress = this.mInstall.progress;
+        ]]></body>
+      </method>
+
+      <method name="onInstallStarted">
+        <body><![CDATA[
+          this._progress.progress = 0;
+          this.refreshState();
+        ]]></body>
+      </method>
+
+      <method name="onInstallEnded">
+        <body><![CDATA[
+          this.refreshState();
+          if ("onInstallCompleted" in this.mControl)
+            this.mControl.onInstallCompleted();
+        ]]></body>
+      </method>
+
+      <method name="onInstallFailed">
+        <body><![CDATA[
+          this.refreshState();
+        ]]></body>
+      </method>
+    </implementation>
+  </binding>
+
+
+  <!-- Addon - base - parent binding of any item representing an addon. -->
+  <binding id="addon-base"
+           extends="chrome://global/content/bindings/richlistbox.xml#richlistitem">
+    <implementation>
+      <method name="hasPermission">
+        <parameter name="aPerm"/>
+        <body><![CDATA[
+          var perm = AddonManager["PERM_CAN_" + aPerm.toUpperCase()];
+          return !!(this.mAddon.permissions & perm);
+        ]]></body>
+      </method>
+
+      <method name="opRequiresRestart">
+        <parameter name="aOperation"/>
+        <body><![CDATA[
+          var operation = AddonManager["OP_NEEDS_RESTART_" + aOperation.toUpperCase()];
+          return !!(this.mAddon.operationsRequiringRestart & operation);
+        ]]></body>
+      </method>
+
+      <method name="isPending">
+        <parameter name="aAction"/>
+        <body><![CDATA[
+          var action = AddonManager["PENDING_" + aAction.toUpperCase()];
+          return !!(this.mAddon.pendingOperations & action);
+        ]]></body>
+      </method>
+
+      <method name="typeHasFlag">
+        <parameter name="aFlag"/>
+        <body><![CDATA[
+          let flag = AddonManager["TYPE_" + aFlag];
+          let type = AddonManager.addonTypes[this.mAddon.type];
+
+          return !!(type.flags & flag);
+        ]]></body>
+      </method>
+
+      <method name="onUninstalled">
+        <body><![CDATA[
+          this.parentNode.removeChild(this);
+        ]]></body>
+      </method>
+    </implementation>
+  </binding>
+
+
+  <!-- Addon - generic - A normal addon item, or an update to one -->
+  <binding id="addon-generic"
+           extends="chrome://mozapps/content/extensions/extensions.xml#addon-base">
+    <content>
+      <xul:hbox anonid="warning-container"
+                class="warning">
+        <xul:image class="warning-icon"/>
+        <xul:label anonid="warning" flex="1"/>
+        <xul:label anonid="warning-link" class="text-link"/>
+        <xul:button anonid="warning-btn" class="button-link" hidden="true"/>
+        <xul:spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+      </xul:hbox>
+      <xul:hbox anonid="error-container"
+                class="error">
+        <xul:image class="error-icon"/>
+        <xul:label anonid="error" flex="1"/>
+        <xul:label anonid="error-link" class="text-link" hidden="true"/>
+        <xul:spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+      </xul:hbox>
+      <xul:hbox anonid="pending-container"
+                class="pending">
+        <xul:image class="pending-icon"/>
+        <xul:label anonid="pending" flex="1"/>
+        <xul:button anonid="restart-btn" class="button-link"
+                    label="&addon.restartNow.label;"
+                    oncommand="document.getBindingParent(this).restart();"/>
+        <xul:button anonid="undo-btn" class="button-link"
+                    label="&addon.undoAction.label;"
+                    tooltipText="&addon.undoAction.tooltip;"
+                    oncommand="document.getBindingParent(this).undo();"/>
+        <xul:spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+      </xul:hbox>
+
+      <xul:hbox class="content-container" align="center">
+        <xul:vbox class="icon-container">
+          <xul:image anonid="icon" class="icon"/>
+        </xul:vbox>
+        <xul:vbox class="content-inner-container" flex="1">
+          <xul:hbox class="basicinfo-container">
+              <xul:hbox class="name-container">
+                <xul:label anonid="name" class="name" crop="end" flex="1"
+                           tooltip="addonitem-tooltip" xbl:inherits="value=name"/>
+                <xul:label class="disabled-postfix" value="&addon.disabled.postfix;"/>
+                <xul:label class="update-postfix" value="&addon.update.postfix;"/>
+                <xul:spacer flex="5000"/> <!-- Necessary to make the name crop -->
+              </xul:hbox>
+            <xul:label anonid="date-updated" class="date-updated"
+                       unknown="&addon.unknownDate;"/>
+          </xul:hbox>
+          <xul:hbox class="experiment-container">
+            <svg width="6" height="6" viewBox="0 0 6 6" version="1.1"
+                 xmlns="http://www.w3.org/2000/svg"
+                 class="experiment-bullet-container">
+              <circle cx="3" cy="3" r="3" class="experiment-bullet"/>
+            </svg>
+            <xul:label anonid="experiment-state" class="experiment-state"/>
+            <xul:label anonid="experiment-time" class="experiment-time"/>
+          </xul:hbox>
+
+          <xul:hbox class="advancedinfo-container" flex="1">
+            <xul:vbox class="description-outer-container" flex="1">
+              <xul:hbox class="description-container">
+                <xul:label anonid="description" class="description" crop="end" flex="1"/>
+                <xul:button anonid="details-btn" class="details button-link"
+                            label="&addon.details.label;"
+                            tooltiptext="&addon.details.tooltip;"
+                            oncommand="document.getBindingParent(this).showInDetailView();"/>
+                <xul:spacer flex="5000"/> <!-- Necessary to make the description crop -->
+              </xul:hbox>
+              <xul:vbox anonid="relnotes-container" class="relnotes-container">
+                <xul:label class="relnotes-header" value="&addon.releaseNotes.label;"/>
+                <xul:label anonid="relnotes-loading" value="&addon.loadingReleaseNotes.label;"/>
+                <xul:label anonid="relnotes-error" hidden="true"
+                           value="&addon.errorLoadingReleaseNotes.label;"/>
+                <xul:vbox anonid="relnotes" class="relnotes"/>
+              </xul:vbox>
+              <xul:hbox class="relnotes-toggle-container">
+                <xul:button anonid="relnotes-toggle-btn" class="relnotes-toggle"
+                            hidden="true" label="&cmd.showReleaseNotes.label;"
+                            tooltiptext="&cmd.showReleaseNotes.tooltip;"
+                            showlabel="&cmd.showReleaseNotes.label;"
+                            showtooltip="&cmd.showReleaseNotes.tooltip;"
+                            hidelabel="&cmd.hideReleaseNotes.label;"
+                            hidetooltip="&cmd.hideReleaseNotes.tooltip;"
+                            oncommand="document.getBindingParent(this).toggleReleaseNotes();"/>
+              </xul:hbox>
+            </xul:vbox>
+          </xul:hbox>
+        </xul:vbox>
+        <xul:vbox class="status-control-wrapper">
+          <xul:hbox class="status-container">
+            <xul:hbox anonid="checking-update" hidden="true">
+              <xul:image class="spinner"/>
+              <xul:label value="&addon.checkingForUpdates.label;"/>
+            </xul:hbox>
+            <xul:vbox anonid="update-available" class="update-available"
+                      hidden="true">
+              <xul:checkbox anonid="include-update" class="include-update"
+                            label="&addon.includeUpdate.label;" checked="true"
+                            oncommand="document.getBindingParent(this).onIncludeUpdateChanged();"/>
+              <xul:hbox class="update-info-container">
+                <xul:label class="update-available-notice"
+                           value="&addon.updateAvailable.label;"/>
+                <xul:button anonid="update-btn" class="addon-control update"
+                            label="&addon.updateNow.label;"
+                            tooltiptext="&addon.updateNow.tooltip;"
+                            oncommand="document.getBindingParent(this).upgrade();"/>
+              </xul:hbox>
+            </xul:vbox>
+            <xul:hbox anonid="install-status" class="install-status"
+                      hidden="true"/>
+          </xul:hbox>
+          <xul:hbox anonid="control-container" class="control-container">
+            <xul:button anonid="preferences-btn"
+                        class="addon-control preferences"
+#ifdef XP_WIN
+                        label="&cmd.showPreferencesWin.label;"
+                        tooltiptext="&cmd.showPreferencesWin.tooltip;"
+#else
+                        label="&cmd.showPreferencesUnix.label;"
+                        tooltiptext="&cmd.showPreferencesUnix.tooltip;"
+#endif
+                        oncommand="document.getBindingParent(this).showPreferences();"/>
+            <xul:button anonid="enable-btn"  class="addon-control enable"
+                        label="&cmd.enableAddon.label;"
+                        oncommand="document.getBindingParent(this).userDisabled = false;"/>
+            <xul:button anonid="disable-btn" class="addon-control disable"
+                        label="&cmd.disableAddon.label;"
+                        oncommand="document.getBindingParent(this).userDisabled = true;"/>
+            <xul:button anonid="remove-btn" class="addon-control remove"
+                        label="&cmd.uninstallAddon.label;"
+                        oncommand="document.getBindingParent(this).uninstall();"/>
+            <xul:menulist anonid="state-menulist"
+                          class="addon-control state"
+                          tooltiptext="&cmd.stateMenu.tooltip;">
+              <xul:menupopup>
+                <xul:menuitem anonid="ask-to-activate-menuitem"
+                              class="addon-control"
+                              label="&cmd.askToActivate.label;"
+                              tooltiptext="&cmd.askToActivate.tooltip;"
+                              oncommand="document.getBindingParent(this).userDisabled = AddonManager.STATE_ASK_TO_ACTIVATE;"/>
+                <xul:menuitem anonid="always-activate-menuitem"
+                              class="addon-control"
+                              label="&cmd.alwaysActivate.label;"
+                              tooltiptext="&cmd.alwaysActivate.tooltip;"
+                              oncommand="document.getBindingParent(this).userDisabled = false;"/>
+                <xul:menuitem anonid="never-activate-menuitem"
+                              class="addon-control"
+                              label="&cmd.neverActivate.label;"
+                              tooltiptext="&cmd.neverActivate.tooltip;"
+                              oncommand="document.getBindingParent(this).userDisabled = true;"/>
+              </xul:menupopup>
+            </xul:menulist>
+          </xul:hbox>
+        </xul:vbox>
+      </xul:hbox>
+    </content>
+
+    <implementation>
+      <constructor><![CDATA[
+        this._installStatus = document.getAnonymousElementByAttribute(this, "anonid", "install-status");
+        this._installStatus.mControl = this;
+
+        this.setAttribute("contextmenu", "addonitem-popup");
+
+        this._showStatus("none");
+
+        this._initWithAddon(this.mAddon);
+
+        gEventManager.registerAddonListener(this, this.mAddon.id);
+      ]]></constructor>
+
+      <destructor><![CDATA[
+        gEventManager.unregisterAddonListener(this, this.mAddon.id);
+      ]]></destructor>
+
+      <field name="_warningContainer">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "warning-container");
+      </field>
+      <field name="_warning">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "warning");
+      </field>
+      <field name="_warningLink">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "warning-link");
+      </field>
+      <field name="_warningBtn">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "warning-btn");
+      </field>
+      <field name="_errorContainer">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "error-container");
+      </field>
+      <field name="_error">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "error");
+      </field>
+      <field name="_errorLink">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "error-link");
+      </field>
+      <field name="_pendingContainer">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "pending-container");
+      </field>
+      <field name="_pending">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "pending");
+      </field>
+      <field name="_infoContainer">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "info-container");
+      </field>
+      <field name="_info">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "info");
+      </field>
+      <field name="_experimentState">
+        document.getAnonymousElementByAttribute(this, "anonid", "experiment-state");
+      </field>
+      <field name="_experimentTime">
+        document.getAnonymousElementByAttribute(this, "anonid", "experiment-time");
+      </field>
+      <field name="_icon">
+        document.getAnonymousElementByAttribute(this, "anonid", "icon");
+      </field>
+      <field name="_dateUpdated">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "date-updated");
+      </field>
+      <field name="_description">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "description");
+      </field>
+      <field name="_stateMenulist">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "state-menulist");
+      </field>
+      <field name="_askToActivateMenuitem">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "ask-to-activate-menuitem");
+      </field>
+      <field name="_alwaysActivateMenuitem">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "always-activate-menuitem");
+      </field>
+      <field name="_neverActivateMenuitem">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "never-activate-menuitem");
+      </field>
+      <field name="_preferencesBtn">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "preferences-btn");
+      </field>
+      <field name="_enableBtn">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "enable-btn");
+      </field>
+      <field name="_disableBtn">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "disable-btn");
+      </field>
+      <field name="_removeBtn">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "remove-btn");
+      </field>
+      <field name="_updateBtn">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "update-btn");
+      </field>
+      <field name="_controlContainer">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "control-container");
+      </field>
+      <field name="_installStatus">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "install-status");
+      </field>
+      <field name="_checkingUpdate">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "checking-update");
+      </field>
+      <field name="_updateAvailable">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "update-available");
+      </field>
+      <field name="_includeUpdate">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "include-update");
+      </field>
+      <field name="_relNotesLoaded">false</field>
+      <field name="_relNotesToggle">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "relnotes-toggle-btn");
+      </field>
+      <field name="_relNotesLoading">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "relnotes-loading");
+      </field>
+      <field name="_relNotesError">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "relnotes-error");
+      </field>
+      <field name="_relNotesContainer">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "relnotes-container");
+      </field>
+      <field name="_relNotes">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "relnotes");
+      </field>
+
+      <property name="userDisabled">
+        <getter><![CDATA[
+          return this.mAddon.userDisabled;
+        ]]></getter>
+        <setter><![CDATA[
+          this.mAddon.userDisabled = val;
+        ]]></setter>
+      </property>
+
+      <property name="includeUpdate">
+        <getter><![CDATA[
+          return this._includeUpdate.checked && !!this.mManualUpdate;
+        ]]></getter>
+        <setter><![CDATA[
+          // XXXunf Eventually, we'll want to persist this for individual
+          //        updates - see bug 594619.
+          this._includeUpdate.checked = !!val;
+        ]]></setter>
+      </property>
+
+      <method name="_initWithAddon">
+        <parameter name="aAddon"/>
+        <body><![CDATA[
+          this.mAddon = aAddon;
+
+          this._installStatus.mAddon = this.mAddon;
+          this._updateDates();
+          this._updateState();
+
+          this.setAttribute("name", aAddon.name);
+
+          var iconURL = AddonManager.getPreferredIconURL(aAddon, 48, window);
+          if (iconURL)
+            this._icon.src = iconURL;
+          else
+            this._icon.src = "";
+
+          if (this.mAddon.description)
+            this._description.value = this.mAddon.description;
+          else
+            this._description.hidden = true;
+
+          if (!("applyBackgroundUpdates" in this.mAddon) ||
+              (this.mAddon.applyBackgroundUpdates == AddonManager.AUTOUPDATE_DISABLE ||
+               (this.mAddon.applyBackgroundUpdates == AddonManager.AUTOUPDATE_DEFAULT &&
+                !AddonManager.autoUpdateDefault))) {
+            AddonManager.getAllInstalls(aInstallsList => {
+              // This can return after the binding has been destroyed,
+              // so try to detect that and return early
+              if (!("onNewInstall" in this))
+                return;
+              for (let install of aInstallsList) {
+                if (install.existingAddon &&
+                    install.existingAddon.id == this.mAddon.id &&
+                    install.state == AddonManager.STATE_AVAILABLE) {
+                  this.onNewInstall(install);
+                  this.onIncludeUpdateChanged();
+                }
+              }
+            });
+          }
+        ]]></body>
+      </method>
+
+      <method name="_showStatus">
+        <parameter name="aType"/>
+        <body><![CDATA[
+          this._controlContainer.hidden = aType != "none" &&
+                                          !(aType == "update-available" && !this.hasAttribute("upgrade"));
+
+          this._installStatus.hidden = aType != "progress";
+          if (aType == "progress")
+            this._installStatus.refreshState();
+          this._checkingUpdate.hidden = aType != "checking-update";
+          this._updateAvailable.hidden = aType != "update-available";
+          this._relNotesToggle.hidden = !(this.mManualUpdate ?
+                                          this.mManualUpdate.releaseNotesURI :
+                                          this.mAddon.releaseNotesURI);
+        ]]></body>
+      </method>
+
+      <method name="_updateDates">
+        <body><![CDATA[
+          function formatDate(aDate) {
+            const locale = Components.classes["@mozilla.org/chrome/chrome-registry;1"]
+                           .getService(Components.interfaces.nsIXULChromeRegistry)
+                           .getSelectedLocale("global", true);
+            const dtOptions = { year: 'numeric', month: 'long', day: 'numeric' };
+            return aDate.toLocaleDateString(locale, dtOptions);
+          }
+
+          if (this.mAddon.updateDate)
+            this._dateUpdated.value = formatDate(this.mAddon.updateDate);
+          else
+            this._dateUpdated.value = this._dateUpdated.getAttribute("unknown");
+        ]]></body>
+      </method>
+
+      <method name="_updateState">
+        <body><![CDATA[
+          if (this.parentNode.selectedItem == this)
+            gViewController.updateCommands();
+
+          var pending = this.mAddon.pendingOperations;
+          if (pending != AddonManager.PENDING_NONE) {
+            this.removeAttribute("notification");
+
+            pending = null;
+            const PENDING_OPERATIONS = ["enable", "disable", "install",
+                                        "uninstall", "upgrade"];
+            for (let op of PENDING_OPERATIONS) {
+              if (this.isPending(op))
+                pending = op;
+            }
+
+            this.setAttribute("pending", pending);
+            this._pending.textContent = gStrings.ext.formatStringFromName(
+              "notification." + pending,
+              [this.mAddon.name, gStrings.brandShortName], 2
+            );
+          } else {
+            this.removeAttribute("pending");
+
+            var isUpgrade = this.hasAttribute("upgrade");
+            var install = this._installStatus.mInstall;
+
+            if (install && install.state == AddonManager.STATE_DOWNLOAD_FAILED) {
+              this.setAttribute("notification", "warning");
+              this._warning.textContent = gStrings.ext.formatStringFromName(
+                "notification.downloadError",
+                [this.mAddon.name], 1
+              );
+              this._warningBtn.label = gStrings.ext.GetStringFromName("notification.downloadError.retry");
+              this._warningBtn.tooltipText = gStrings.ext.GetStringFromName("notification.downloadError.retry.tooltip");
+              this._warningBtn.setAttribute("oncommand", "document.getBindingParent(this).retryInstall();");
+              this._warningBtn.hidden = false;
+              this._warningLink.hidden = true;
+            } else if (install && install.state == AddonManager.STATE_INSTALL_FAILED) {
+              this.setAttribute("notification", "warning");
+              this._warning.textContent = gStrings.ext.formatStringFromName(
+                "notification.installError",
+                [this.mAddon.name], 1
+              );
+              this._warningBtn.label = gStrings.ext.GetStringFromName("notification.installError.retry");
+              this._warningBtn.tooltipText = gStrings.ext.GetStringFromName("notification.downloadError.retry.tooltip");
+              this._warningBtn.setAttribute("oncommand", "document.getBindingParent(this).retryInstall();");
+              this._warningBtn.hidden = false;
+              this._warningLink.hidden = true;
+            } else if (!isUpgrade && this.mAddon.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED) {
+              this.setAttribute("notification", "error");
+              this._error.textContent = gStrings.ext.formatStringFromName(
+                "notification.blocked",
+                [this.mAddon.name], 1
+              );
+              this._errorLink.value = gStrings.ext.GetStringFromName("notification.blocked.link");
+              this._errorLink.href = this.mAddon.blocklistURL;
+              this._errorLink.hidden = false;
+            } else if (!isUpgrade && !isCorrectlySigned(this.mAddon) && SIGNING_REQUIRED) {
+              this.setAttribute("notification", "error");
+              this._error.textContent = gStrings.ext.formatStringFromName(
+                "notification.unsignedAndDisabled", [this.mAddon.name, gStrings.brandShortName], 2
+              );
+              this._errorLink.value = gStrings.ext.GetStringFromName("notification.unsigned.link");
+              this._errorLink.href = Services.urlFormatter.formatURLPref("app.support.baseURL") + "unsigned-addons";
+              this._errorLink.hidden = false;
+            } else if ((!isUpgrade && !this.mAddon.isCompatible) && (AddonManager.checkCompatibility
+            || (this.mAddon.blocklistState != Ci.nsIBlocklistService.STATE_SOFTBLOCKED))) {
+              this.setAttribute("notification", "warning");
+              this._warning.textContent = gStrings.ext.formatStringFromName(
+                "notification.incompatible",
+                [this.mAddon.name, gStrings.brandShortName, gStrings.appVersion], 3
+              );
+              this._warningLink.hidden = true;
+              this._warningBtn.hidden = true;
+            } else if (!isUpgrade && !isCorrectlySigned(this.mAddon)) {
+              this.setAttribute("notification", "warning");
+              this._warning.textContent = gStrings.ext.formatStringFromName(
+                "notification.unsigned", [this.mAddon.name, gStrings.brandShortName], 2
+              );
+              this._warningLink.value = gStrings.ext.GetStringFromName("notification.unsigned.link");
+              this._warningLink.href = Services.urlFormatter.formatURLPref("app.support.baseURL") + "unsigned-addons";
+              this._warningLink.hidden = false;
+            } else if (!isUpgrade && this.mAddon.blocklistState == Ci.nsIBlocklistService.STATE_SOFTBLOCKED) {
+              this.setAttribute("notification", "warning");
+              this._warning.textContent = gStrings.ext.formatStringFromName(
+                "notification.softblocked",
+                [this.mAddon.name], 1
+              );
+              this._warningLink.value = gStrings.ext.GetStringFromName("notification.softblocked.link");
+              this._warningLink.href = this.mAddon.blocklistURL;
+              this._warningLink.hidden = false;
+              this._warningBtn.hidden = true;
+            } else if (!isUpgrade && this.mAddon.blocklistState == Ci.nsIBlocklistService.STATE_OUTDATED) {
+              this.setAttribute("notification", "warning");
+              this._warning.textContent = gStrings.ext.formatStringFromName(
+                "notification.outdated",
+                [this.mAddon.name], 1
+              );
+              this._warningLink.value = gStrings.ext.GetStringFromName("notification.outdated.link");
+              this._warningLink.href = this.mAddon.blocklistURL;
+              this._warningLink.hidden = false;
+              this._warningBtn.hidden = true;
+            } else if (!isUpgrade && this.mAddon.blocklistState == Ci.nsIBlocklistService.STATE_VULNERABLE_UPDATE_AVAILABLE) {
+              this.setAttribute("notification", "error");
+              this._error.textContent = gStrings.ext.formatStringFromName(
+                "notification.vulnerableUpdatable",
+                [this.mAddon.name], 1
+              );
+              this._errorLink.value = gStrings.ext.GetStringFromName("notification.vulnerableUpdatable.link");
+              this._errorLink.href = this.mAddon.blocklistURL;
+              this._errorLink.hidden = false;
+            } else if (!isUpgrade && this.mAddon.blocklistState == Ci.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE) {
+              this.setAttribute("notification", "error");
+              this._error.textContent = gStrings.ext.formatStringFromName(
+                "notification.vulnerableNoUpdate",
+                [this.mAddon.name], 1
+              );
+              this._errorLink.value = gStrings.ext.GetStringFromName("notification.vulnerableNoUpdate.link");
+              this._errorLink.href = this.mAddon.blocklistURL;
+              this._errorLink.hidden = false;
+            } else if (this.mAddon.isGMPlugin && !this.mAddon.isInstalled &&
+                       this.mAddon.isActive) {
+              this.setAttribute("notification", "warning");
+              this._warning.textContent =
+                gStrings.ext.formatStringFromName("notification.gmpPending",
+                                                  [this.mAddon.name], 1);
+            } else {
+              this.removeAttribute("notification");
+            }
+          }
+
+          this._preferencesBtn.hidden = (!this.mAddon.optionsURL) ||
+                                        this.mAddon.optionsType == AddonManager.OPTIONS_TYPE_INLINE_INFO;
+
+          if (this.typeHasFlag("SUPPORTS_ASK_TO_ACTIVATE")) {
+            this._enableBtn.disabled = true;
+            this._disableBtn.disabled = true;
+            this._askToActivateMenuitem.disabled = !this.hasPermission("ask_to_activate");
+            this._alwaysActivateMenuitem.disabled = !this.hasPermission("enable");
+            this._neverActivateMenuitem.disabled = !this.hasPermission("disable");
+            if (!this.mAddon.isActive) {
+              this._stateMenulist.selectedItem = this._neverActivateMenuitem;
+            } else if (this.mAddon.userDisabled == AddonManager.STATE_ASK_TO_ACTIVATE) {
+              this._stateMenulist.selectedItem = this._askToActivateMenuitem;
+            } else {
+              this._stateMenulist.selectedItem = this._alwaysActivateMenuitem;
+            }
+            let hasActivatePermission =
+              ["ask_to_activate", "enable", "disable"].some(perm => this.hasPermission(perm));
+            this._stateMenulist.disabled = !hasActivatePermission;
+            this._stateMenulist.hidden = false;
+            this._stateMenulist.classList.add('no-auto-hide');
+          } else {
+            this._stateMenulist.hidden = true;
+
+            let enableTooltip = gViewController.commands["cmd_enableItem"]
+                                               .getTooltip(this.mAddon);
+            this._enableBtn.setAttribute("tooltiptext", enableTooltip);
+            if (this.hasPermission("enable")) {
+              this._enableBtn.hidden = false;
+            } else {
+              this._enableBtn.hidden = true;
+            }
+
+            let disableTooltip = gViewController.commands["cmd_disableItem"]
+                                                .getTooltip(this.mAddon);
+            this._disableBtn.setAttribute("tooltiptext", disableTooltip);
+            if (this.hasPermission("disable")) {
+              this._disableBtn.hidden = false;
+            } else {
+              this._disableBtn.hidden = true;
+            }
+          }
+
+          let uninstallTooltip = gViewController.commands["cmd_uninstallItem"]
+                                                .getTooltip(this.mAddon);
+          this._removeBtn.setAttribute("tooltiptext", uninstallTooltip);
+          if (this.hasPermission("uninstall")) {
+            this._removeBtn.hidden = false;
+          } else {
+            this._removeBtn.hidden = true;
+          }
+
+          this.setAttribute("active", this.mAddon.isActive);
+
+          var showProgress = this.mAddon.purchaseURL || (this.mAddon.install &&
+                             this.mAddon.install.state != AddonManager.STATE_INSTALLED);
+          this._showStatus(showProgress ? "progress" : "none");
+
+          if (this.mAddon.type == "experiment") {
+            this.removeAttribute("notification");
+            let prefix = "experiment.";
+            let active = this.mAddon.isActive;
+
+            if (!showProgress) {
+              let stateKey = prefix + "state." + (active ? "active" : "complete");
+              this._experimentState.value = gStrings.ext.GetStringFromName(stateKey);
+
+              let now = Date.now();
+              let end = this.endDate;
+              let days = Math.abs(end - now) / (24 * 60 * 60 * 1000);
+
+              let timeKey = prefix + "time.";
+              let timeMessage;
+
+              if (days < 1) {
+                timeKey += (active ? "endsToday" : "endedToday");
+                timeMessage = gStrings.ext.GetStringFromName(timeKey);
+              } else {
+                timeKey += (active ? "daysRemaining" : "daysPassed");
+                days = Math.round(days);
+                let timeString = gStrings.ext.GetStringFromName(timeKey);
+                timeMessage = PluralForm.get(days, timeString)
+                                        .replace("#1", days);
+              }
+
+              this._experimentTime.value = timeMessage;
+            }
+          }
+        ]]></body>
+      </method>
+
+      <method name="_fetchReleaseNotes">
+        <parameter name="aURI"/>
+        <body><![CDATA[
+          if (!aURI || this._relNotesLoaded) {
+            sendToggleEvent();
+            return;
+          }
+
+          var relNotesData = null, transformData = null;
+
+          this._relNotesLoaded = true;
+          this._relNotesLoading.hidden = false;
+          this._relNotesError.hidden = true;
+
+          let sendToggleEvent = () => {
+            var event = document.createEvent("Events");
+            event.initEvent("RelNotesToggle", true, true);
+            this.dispatchEvent(event);
+          }
+
+          let showRelNotes = () => {
+            if (!relNotesData || !transformData)
+              return;
+
+            this._relNotesLoading.hidden = true;
+
+            var processor = Components.classes["@mozilla.org/document-transformer;1?type=xslt"]
+                                      .createInstance(Components.interfaces.nsIXSLTProcessor);
+            processor.flags |= Components.interfaces.nsIXSLTProcessorPrivate.DISABLE_ALL_LOADS;
+
+            processor.importStylesheet(transformData);
+            var fragment = processor.transformToFragment(relNotesData, document);
+            this._relNotes.appendChild(fragment);
+            if (this.hasAttribute("show-relnotes")) {
+              var container = this._relNotesContainer;
+              container.style.height = container.scrollHeight + "px";
+            }
+            sendToggleEvent();
+          }
+
+          let handleError = () => {
+            dataReq.abort();
+            styleReq.abort();
+            this._relNotesLoading.hidden = true;
+            this._relNotesError.hidden = false;
+            this._relNotesLoaded = false; // allow loading to be re-tried
+            sendToggleEvent();
+          }
+
+          function handleResponse(aEvent) {
+            var req = aEvent.target;
+            var ct = req.getResponseHeader("content-type");
+            if ((!ct || ct.indexOf("text/html") < 0) &&
+                req.responseXML &&
+                req.responseXML.documentElement.namespaceURI != XMLURI_PARSE_ERROR) {
+              if (req == dataReq)
+                relNotesData = req.responseXML;
+              else
+                transformData = req.responseXML;
+              showRelNotes();
+            } else {
+              handleError();
+            }
+          }
+
+          var dataReq = Components.classes["@mozilla.org/xmlextras/xmlhttprequest;1"]
+                              .createInstance(Components.interfaces.nsIXMLHttpRequest);
+          dataReq.open("GET", aURI.spec, true);
+          dataReq.responseType = "document";
+          dataReq.addEventListener("load", handleResponse, false);
+          dataReq.addEventListener("error", handleError, false);
+          dataReq.send(null);
+
+          var styleReq = Components.classes["@mozilla.org/xmlextras/xmlhttprequest;1"]
+                              .createInstance(Components.interfaces.nsIXMLHttpRequest);
+          styleReq.open("GET", UPDATES_RELEASENOTES_TRANSFORMFILE, true);
+          styleReq.responseType = "document";
+          styleReq.addEventListener("load", handleResponse, false);
+          styleReq.addEventListener("error", handleError, false);
+          styleReq.send(null);
+        ]]></body>
+      </method>
+
+      <method name="toggleReleaseNotes">
+        <body><![CDATA[
+          if (this.hasAttribute("show-relnotes")) {
+            this._relNotesContainer.style.height = "0px";
+            this.removeAttribute("show-relnotes");
+            this._relNotesToggle.setAttribute(
+              "label",
+              this._relNotesToggle.getAttribute("showlabel")
+            );
+            this._relNotesToggle.setAttribute(
+              "tooltiptext",
+              this._relNotesToggle.getAttribute("showtooltip")
+            );
+            var event = document.createEvent("Events");
+            event.initEvent("RelNotesToggle", true, true);
+            this.dispatchEvent(event);
+          } else {
+            this._relNotesContainer.style.height = this._relNotesContainer.scrollHeight +
+                                                   "px";
+            this.setAttribute("show-relnotes", true);
+            this._relNotesToggle.setAttribute(
+              "label",
+              this._relNotesToggle.getAttribute("hidelabel")
+            );
+            this._relNotesToggle.setAttribute(
+              "tooltiptext",
+              this._relNotesToggle.getAttribute("hidetooltip")
+            );
+            var uri = this.mManualUpdate ?
+                      this.mManualUpdate.releaseNotesURI :
+                      this.mAddon.releaseNotesURI;
+            this._fetchReleaseNotes(uri);
+          }
+        ]]></body>
+      </method>
+
+      <method name="restart">
+        <body><![CDATA[
+          gViewController.commands["cmd_restartApp"].doCommand();
+        ]]></body>
+      </method>
+
+      <method name="undo">
+        <body><![CDATA[
+          gViewController.commands["cmd_cancelOperation"].doCommand(this.mAddon);
+        ]]></body>
+      </method>
+
+      <method name="uninstall">
+        <body><![CDATA[
+          // If uninstalling does not require a restart and the type doesn't
+          // support undoing of restartless uninstalls, then we fake it by
+          // just disabling it it, and doing the real uninstall later.
+          if (!this.opRequiresRestart("uninstall") &&
+              !this.typeHasFlag("SUPPORTS_UNDO_RESTARTLESS_UNINSTALL")) {
+            this.setAttribute("wasDisabled", this.mAddon.userDisabled);
+
+            // We must set userDisabled to true first, this will call
+            // _updateState which will clear any pending attribute set.
+            this.mAddon.userDisabled = true;
+
+            // This won't update any other add-on manager views (bug 582002)
+            this.setAttribute("pending", "uninstall");
+          } else {
+            this.mAddon.uninstall(true);
+          }
+        ]]></body>
+      </method>
+
+      <method name="showPreferences">
+        <body><![CDATA[
+          gViewController.doCommand("cmd_showItemPreferences", this.mAddon);
+        ]]></body>
+      </method>
+
+      <method name="upgrade">
+        <body><![CDATA[
+          var install = this.mManualUpdate;
+          delete this.mManualUpdate;
+          install.install();
+        ]]></body>
+      </method>
+
+      <method name="retryInstall">
+        <body><![CDATA[
+          var install = this._installStatus.mInstall;
+          if (!install)
+            return;
+          if (install.state != AddonManager.STATE_DOWNLOAD_FAILED &&
+              install.state != AddonManager.STATE_INSTALL_FAILED)
+            return;
+          install.install();
+        ]]></body>
+      </method>
+
+      <method name="showInDetailView">
+        <body><![CDATA[
+          gViewController.loadView("addons://detail/" +
+                                   encodeURIComponent(this.mAddon.id));
+        ]]></body>
+      </method>
+
+      <method name="onIncludeUpdateChanged">
+        <body><![CDATA[
+          var event = document.createEvent("Events");
+          event.initEvent("IncludeUpdateChanged", true, true);
+          this.dispatchEvent(event);
+        ]]></body>
+      </method>
+
+      <method name="onEnabling">
+        <body><![CDATA[
+          this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onEnabled">
+        <body><![CDATA[
+          this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onDisabling">
+        <body><![CDATA[
+          this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onDisabled">
+        <body><![CDATA[
+          this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onUninstalling">
+        <parameter name="aRestartRequired"/>
+        <body><![CDATA[
+          this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onOperationCancelled">
+        <body><![CDATA[
+          this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onPropertyChanged">
+        <parameter name="aProperties"/>
+        <body><![CDATA[
+          if (aProperties.indexOf("appDisabled") != -1 ||
+              aProperties.indexOf("signedState") != -1 ||
+              aProperties.indexOf("userDisabled") != -1)
+            this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onNoUpdateAvailable">
+        <body><![CDATA[
+          this._showStatus("none");
+        ]]></body>
+      </method>
+
+      <method name="onCheckingUpdate">
+        <body><![CDATA[
+          this._showStatus("checking-update");
+        ]]></body>
+      </method>
+
+      <method name="onCompatibilityUpdateAvailable">
+        <body><![CDATA[
+          this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onExternalInstall">
+        <parameter name="aAddon"/>
+        <parameter name="aExistingAddon"/>
+        <parameter name="aNeedsRestart"/>
+        <body><![CDATA[
+          if (aExistingAddon.id != this.mAddon.id)
+            return;
+
+          // If the install completed without needing a restart then switch to
+          // using the new Addon
+          if (!aNeedsRestart)
+            this._initWithAddon(aAddon);
+          else
+            this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onNewInstall">
+        <parameter name="aInstall"/>
+        <body><![CDATA[
+          if (this.mAddon.applyBackgroundUpdates == AddonManager.AUTOUPDATE_ENABLE)
+            return;
+          if (this.mAddon.applyBackgroundUpdates == AddonManager.AUTOUPDATE_DEFAULT &&
+              AddonManager.autoUpdateDefault)
+            return;
+
+          this.mManualUpdate = aInstall;
+          this._showStatus("update-available");
+        ]]></body>
+      </method>
+
+      <method name="onDownloadStarted">
+        <parameter name="aInstall"/>
+        <body><![CDATA[
+          this._updateState();
+          this._showStatus("progress");
+          this._installStatus.initWithInstall(aInstall);
+        ]]></body>
+      </method>
+
+      <method name="onInstallStarted">
+        <parameter name="aInstall"/>
+        <body><![CDATA[
+          this._updateState();
+          this._showStatus("progress");
+          this._installStatus.initWithInstall(aInstall);
+        ]]></body>
+      </method>
+
+      <method name="onInstallEnded">
+        <parameter name="aInstall"/>
+        <parameter name="aAddon"/>
+        <body><![CDATA[
+          // If the install completed without needing a restart then switch to
+          // using the new Addon
+          if (!(aAddon.pendingOperations & AddonManager.PENDING_INSTALL))
+            this._initWithAddon(aAddon);
+          else
+            this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onDownloadFailed">
+        <body><![CDATA[
+            this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onInstallFailed">
+        <body><![CDATA[
+            this._updateState();
+        ]]></body>
+      </method>
+
+      <method name="onInstallCancelled">
+        <body><![CDATA[
+            this._updateState();
+        ]]></body>
+      </method>
+    </implementation>
+
+    <handlers>
+      <handler event="click" button="0"><![CDATA[
+        switch (event.detail) {
+        case 1:
+          // Prevent double-click where the UI changes on the first click
+          this._lastClickTarget = event.originalTarget;
+          break;
+        case 2:
+          if (event.originalTarget.localName != 'button' &&
+              !event.originalTarget.classList.contains('text-link') &&
+              event.originalTarget == this._lastClickTarget) {
+            this.showInDetailView();
+          }
+          break;
+        }
+      ]]></handler>
+    </handlers>
+  </binding>
+
+
+  <!-- Addon - uninstalled - An uninstalled addon that can be re-installed. -->
+  <binding id="addon-uninstalled"
+           extends="chrome://mozapps/content/extensions/extensions.xml#addon-base">
+    <content>
+      <xul:hbox class="pending">
+        <xul:image class="pending-icon"/>
+        <xul:label anonid="notice" flex="1"/>
+        <xul:button anonid="restart-btn" class="button-link"
+                    label="&addon.restartNow.label;"
+                    command="cmd_restartApp"/>
+        <xul:button anonid="undo-btn" class="button-link"
+                    label="&addon.undoRemove.label;"
+                    tooltiptext="&addon.undoRemove.tooltip;"
+                    oncommand="document.getBindingParent(this).cancelUninstall();"/>
+        <xul:spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+      </xul:hbox>
+    </content>
+
+    <implementation>
+      <constructor><![CDATA[
+        this._notice.textContent = gStrings.ext.formatStringFromName("uninstallNotice",
+                                                                     [this.mAddon.name],
+                                                                     1);
+
+        if (!this.opRequiresRestart("uninstall"))
+          this._restartBtn.setAttribute("hidden", true);
+
+        gEventManager.registerAddonListener(this, this.mAddon.id);
+      ]]></constructor>
+
+      <destructor><![CDATA[
+        gEventManager.unregisterAddonListener(this, this.mAddon.id);
+      ]]></destructor>
+
+      <field name="_notice" readonly="true">
+        document.getAnonymousElementByAttribute(this, "anonid", "notice");
+      </field>
+      <field name="_restartBtn" readonly="true">
+        document.getAnonymousElementByAttribute(this, "anonid", "restart-btn");
+      </field>
+
+      <method name="cancelUninstall">
+        <body><![CDATA[
+          // This assumes that disabling does not require a restart when
+          // uninstalling doesn't. Things will still work if not, the add-on
+          // will just still be active until finally getting uninstalled.
+
+          if (this.isPending("uninstall"))
+            this.mAddon.cancelUninstall();
+          else if (this.getAttribute("wasDisabled") != "true")
+            this.mAddon.userDisabled = false;
+
+          this.removeAttribute("pending");
+        ]]></body>
+      </method>
+
+      <method name="onOperationCancelled">
+        <body><![CDATA[
+          if (!this.isPending("uninstall"))
+            this.removeAttribute("pending");
+        ]]></body>
+      </method>
+
+      <method name="onExternalInstall">
+        <parameter name="aAddon"/>
+        <parameter name="aExistingAddon"/>
+        <parameter name="aNeedsRestart"/>
+        <body><![CDATA[
+          if (aExistingAddon.id != this.mAddon.id)
+            return;
+
+          // Make sure any newly installed add-on has the correct disabled state
+          if (this.hasAttribute("wasDisabled"))
+            aAddon.userDisabled = this.getAttribute("wasDisabled") == "true";
+
+          // If the install completed without needing a restart then switch to
+          // using the new Addon
+          if (!aNeedsRestart)
+            this.mAddon = aAddon;
+
+          this.removeAttribute("pending");
+        ]]></body>
+      </method>
+
+      <method name="onInstallStarted">
+        <parameter name="aInstall"/>
+        <body><![CDATA[
+          // Make sure any newly installed add-on has the correct disabled state
+          if (this.hasAttribute("wasDisabled"))
+            aInstall.addon.userDisabled = this.getAttribute("wasDisabled") == "true";
+        ]]></body>
+      </method>
+
+      <method name="onInstallEnded">
+        <parameter name="aInstall"/>
+        <parameter name="aAddon"/>
+        <body><![CDATA[
+          // If the install completed without needing a restart then switch to
+          // using the new Addon
+          if (!(aAddon.pendingOperations & AddonManager.PENDING_INSTALL))
+            this.mAddon = aAddon;
+
+          this.removeAttribute("pending");
+        ]]></body>
+      </method>
+    </implementation>
+  </binding>
+
+
+  <!-- Addon - installing - an addon item that is currently being installed -->
+  <binding id="addon-installing"
+           extends="chrome://mozapps/content/extensions/extensions.xml#addon-base">
+    <content>
+      <xul:hbox anonid="warning-container" class="warning">
+        <xul:image class="warning-icon"/>
+        <xul:label anonid="warning" flex="1"/>
+        <xul:button anonid="warning-link" class="button-link"
+                   oncommand="document.getBindingParent(this).retryInstall();"/>
+        <xul:spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+      </xul:hbox>
+      <xul:hbox class="content-container">
+        <xul:vbox class="icon-outer-container">
+          <xul:vbox class="icon-container">
+            <xul:image anonid="icon" class="icon"/>
+          </xul:vbox>
+        </xul:vbox>
+        <xul:vbox class="fade name-outer-container" flex="1">
+          <xul:hbox class="name-container">
+            <xul:label anonid="name" class="name" crop="end" tooltip="addonitem-tooltip"/>
+          </xul:hbox>
+        </xul:vbox>
+        <xul:vbox class="install-status-container">
+          <xul:hbox anonid="install-status" class="install-status"/>
+        </xul:vbox>
+      </xul:hbox>
+    </content>
+
+    <implementation>
+      <constructor><![CDATA[
+        this._installStatus.mControl = this;
+        this._installStatus.mInstall = this.mInstall;
+        this.refreshInfo();
+      ]]></constructor>
+
+      <field name="_icon">
+        document.getAnonymousElementByAttribute(this, "anonid", "icon");
+      </field>
+      <field name="_name">
+        document.getAnonymousElementByAttribute(this, "anonid", "name");
+      </field>
+      <field name="_warning">
+        document.getAnonymousElementByAttribute(this, "anonid", "warning");
+      </field>
+      <field name="_warningLink">
+        document.getAnonymousElementByAttribute(this, "anonid", "warning-link");
+      </field>
+      <field name="_installStatus">
+        document.getAnonymousElementByAttribute(this, "anonid",
+                                                "install-status");
+      </field>
+
+      <method name="onInstallCompleted">
+        <body><![CDATA[
+          this.mAddon = this.mInstall.addon;
+          this.setAttribute("name", this.mAddon.name);
+          this.setAttribute("value", this.mAddon.id);
+          this.setAttribute("status", "installed");
+        ]]></body>
+      </method>
+
+      <method name="refreshInfo">
+        <body><![CDATA[
+          this.mAddon = this.mAddon || this.mInstall.addon;
+          if (this.mAddon) {
+            this._icon.src = this.mAddon.iconURL ||
+                             (this.mInstall ? this.mInstall.iconURL : "");
+            this._name.value = this.mAddon.name;
+          } else {
+            this._icon.src = this.mInstall.iconURL;
+            // AddonInstall.name isn't always available - fallback to filename
+            if (this.mInstall.name) {
+              this._name.value = this.mInstall.name;
+            } else if (this.mInstall.sourceURI) {
+              var url = Components.classes["@mozilla.org/network/standard-url;1"]
+                                  .createInstance(Components.interfaces.nsIStandardURL);
+              url.init(url.URLTYPE_STANDARD, 80, this.mInstall.sourceURI.spec,
+                       null, null);
+              url.QueryInterface(Components.interfaces.nsIURL);
+              this._name.value = url.fileName;
+            }
+          }
+
+          if (this.mInstall.state == AddonManager.STATE_DOWNLOAD_FAILED) {
+            this.setAttribute("notification", "warning");
+            this._warning.textContent = gStrings.ext.formatStringFromName(
+              "notification.downloadError",
+              [this._name.value], 1
+            );
+            this._warningLink.label = gStrings.ext.GetStringFromName("notification.downloadError.retry");
+            this._warningLink.tooltipText = gStrings.ext.GetStringFromName("notification.downloadError.retry.tooltip");
+          } else if (this.mInstall.state == AddonManager.STATE_INSTALL_FAILED) {
+            this.setAttribute("notification", "warning");
+            this._warning.textContent = gStrings.ext.formatStringFromName(
+              "notification.installError",
+              [this._name.value], 1
+            );
+            this._warningLink.label = gStrings.ext.GetStringFromName("notification.installError.retry");
+            this._warningLink.tooltipText = gStrings.ext.GetStringFromName("notification.downloadError.retry.tooltip");
+          } else {
+            this.removeAttribute("notification");
+          }
+        ]]></body>
+      </method>
+
+      <method name="retryInstall">
+        <body><![CDATA[
+          this.mInstall.install();
+        ]]></body>
+      </method>
+    </implementation>
+  </binding>
+
+  <binding id="detail-row">
+    <content>
+      <xul:label class="detail-row-label" xbl:inherits="value=label"/>
+      <xul:label class="detail-row-value" xbl:inherits="value"/>
+    </content>
+
+    <implementation>
+      <property name="value">
+        <getter><![CDATA[
+          return this.getAttribute("value");
+        ]]></getter>
+        <setter><![CDATA[
+          if (!val)
+            this.removeAttribute("value");
+          else
+            this.setAttribute("value", val);
+        ]]></setter>
+      </property>
+    </implementation>
+  </binding>
+
+</bindings>
diff --git a/toolkit/mozapps/webextensions/content/extensions.xul b/toolkit/mozapps/webextensions/content/extensions.xul
new file mode 100644
index 000000000..70939d024
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/extensions.xul
@@ -0,0 +1,715 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://mozapps/content/extensions/extensions.css"?>
+<?xml-stylesheet href="chrome://mozapps/skin/extensions/extensions.css"?>
+
+<!DOCTYPE page [
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd" >
+%brandDTD;
+<!ENTITY % extensionsDTD SYSTEM "chrome://mozapps/locale/extensions/extensions.dtd">
+%extensionsDTD;
+]>
+
+<page xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+      xmlns:xhtml="http://www.w3.org/1999/xhtml"
+      id="addons-page" title="&addons.windowTitle;"
+      role="application" windowtype="Addons:Manager"
+      disablefastfind="true">
+
+  <xhtml:link rel="shortcut icon"
+              href="chrome://mozapps/skin/extensions/extensionGeneric-16.png"/>
+
+  <script type="application/javascript"
+          src="chrome://mozapps/content/extensions/extensions.js"/>
+  <script type="application/javascript"
+          src="chrome://global/content/contentAreaUtils.js"/>
+
+  <popupset>
+    <!-- menu for an addon item -->
+    <menupopup id="addonitem-popup">
+      <menuitem id="menuitem_showDetails" command="cmd_showItemDetails"
+                default="true" label="&cmd.showDetails.label;"
+                accesskey="&cmd.showDetails.accesskey;"/>
+      <menuitem id="menuitem_enableItem" command="cmd_enableItem"
+                label="&cmd.enableAddon.label;"
+                accesskey="&cmd.enableAddon.accesskey;"/>
+      <menuitem id="menuitem_disableItem" command="cmd_disableItem"
+                label="&cmd.disableAddon.label;"
+                accesskey="&cmd.disableAddon.accesskey;"/>
+      <menuitem id="menuitem_enableTheme" command="cmd_enableItem"
+                label="&cmd.enableTheme.label;"
+                accesskey="&cmd.enableTheme.accesskey;"/>
+      <menuitem id="menuitem_disableTheme" command="cmd_disableItem"
+                label="&cmd.disableTheme.label;"
+                accesskey="&cmd.disableTheme.accesskey;"/>
+      <menuitem id="menuitem_installItem" command="cmd_installItem"
+                label="&cmd.installAddon.label;"
+                accesskey="&cmd.installAddon.accesskey;"/>
+      <menuitem id="menuitem_uninstallItem" command="cmd_uninstallItem"
+                label="&cmd.uninstallAddon.label;"
+                accesskey="&cmd.uninstallAddon.accesskey;"/>
+      <menuseparator id="addonitem-menuseparator" />
+      <menuitem id="menuitem_preferences" command="cmd_showItemPreferences"
+#ifdef XP_WIN
+                label="&cmd.preferencesWin.label;"
+                accesskey="&cmd.preferencesWin.accesskey;"/>
+#else
+                label="&cmd.preferencesUnix.label;"
+                accesskey="&cmd.preferencesUnix.accesskey;"/>
+#endif
+      <menuitem id="menuitem_findUpdates" command="cmd_findItemUpdates"
+                label="&cmd.findUpdates.label;"
+                accesskey="&cmd.findUpdates.accesskey;"/>
+      <menuitem id="menuitem_about" command="cmd_showItemAbout"
+                label="&cmd.about.label;"
+                accesskey="&cmd.about.accesskey;"/>
+    </menupopup>
+
+    <tooltip id="addonitem-tooltip"/>
+  </popupset>
+
+  <!-- global commands - these act on all addons, or affect the addons manager
+       in some other way -->
+  <commandset id="globalCommandSet">
+    <!-- XXXsw remove useless oncommand attribute once bug 371900 is fixed -->
+    <command id="cmd_focusSearch" oncommand=";"/>
+    <command id="cmd_findAllUpdates"/>
+    <command id="cmd_restartApp"/>
+    <command id="cmd_goToDiscoverPane"/>
+    <command id="cmd_goToRecentUpdates"/>
+    <command id="cmd_goToAvailableUpdates"/>
+    <command id="cmd_installFromFile"/>
+    <command id="cmd_debugAddons"/>
+    <command id="cmd_back"/>
+    <command id="cmd_forward"/>
+    <command id="cmd_enableCheckCompatibility"/>
+    <command id="cmd_enableUpdateSecurity"/>
+    <command id="cmd_toggleAutoUpdateDefault"/>
+    <command id="cmd_resetAddonAutoUpdate"/>
+    <command id="cmd_experimentsLearnMore"/>
+    <command id="cmd_experimentsOpenTelemetryPreferences"/>
+    <command id="cmd_showUnsignedExtensions"/>
+    <command id="cmd_showAllExtensions"/>
+  </commandset>
+
+  <!-- view commands - these act on the selected addon -->
+  <commandset id="viewCommandSet"
+              events="richlistbox-select" commandupdater="true">
+    <command id="cmd_showItemDetails"/>
+    <command id="cmd_findItemUpdates"/>
+    <command id="cmd_showItemPreferences"/>
+    <command id="cmd_showItemAbout"/>
+    <command id="cmd_enableItem"/>
+    <command id="cmd_disableItem"/>
+    <command id="cmd_installItem"/>
+    <command id="cmd_purchaseItem"/>
+    <command id="cmd_uninstallItem"/>
+    <command id="cmd_cancelUninstallItem"/>
+    <command id="cmd_cancelOperation"/>
+    <command id="cmd_contribute"/>
+    <command id="cmd_askToActivateItem"/>
+    <command id="cmd_alwaysActivateItem"/>
+    <command id="cmd_neverActivateItem"/>
+  </commandset>
+
+  <keyset>
+    <key id="focusSearch" key="&search.commandkey;" modifiers="accel"
+         command="cmd_focusSearch"/>
+  </keyset>
+  <hbox flex="1">
+    <vbox>
+      <hbox id="nav-header"
+            align="center"
+            pack="center">
+        <toolbarbutton id="back-btn"
+                       class="nav-button header-button"
+                       command="cmd_back"
+                       tooltiptext="&cmd.back.tooltip;"
+                       hidden="true"
+                       disabled="true"/>
+        <toolbarbutton id="forward-btn"
+                       class="nav-button header-button"
+                       command="cmd_forward"
+                       tooltiptext="&cmd.forward.tooltip;"
+                       hidden="true"
+                       disabled="true"/>
+      </hbox>
+      <!-- category list -->
+      <richlistbox id="categories" flex="1">
+        <richlistitem id="category-search" value="addons://search/"
+                      class="category"
+                      name="&view.search.label;" priority="0"
+                      tooltiptext="&view.search.label;" disabled="true"/>
+        <richlistitem id="category-discover" value="addons://discover/"
+                      class="category"
+                      name="&view.discover.label;" priority="1000"
+                      tooltiptext="&view.discover.label;"/>
+        <richlistitem id="category-availableUpdates" value="addons://updates/available"
+                      class="category"
+                      name="&view.availableUpdates.label;" priority="100000"
+                      tooltiptext="&view.availableUpdates.label;"
+                      disabled="true"/>
+        <richlistitem id="category-recentUpdates" value="addons://updates/recent"
+                      class="category"
+                      name="&view.recentUpdates.label;" priority="101000"
+                      tooltiptext="&view.recentUpdates.label;" disabled="true"/>
+      </richlistbox>
+    </vbox>
+    <vbox class="main-content" flex="1">
+      <!-- view port -->
+      <deck id="view-port" flex="1" selectedIndex="0">
+        <!-- discover view -->
+        <deck id="discover-view" flex="1" class="view-pane" selectedIndex="0" tabindex="0">
+          <vbox id="discover-loading" align="center" pack="stretch" flex="1" class="alert-container">
+            <spacer class="alert-spacer-before"/>
+            <hbox class="alert loading" align="center">
+              <image/>
+              <label value="&loading.label;"/>
+            </hbox>
+            <spacer class="alert-spacer-after"/>
+          </vbox>
+          <vbox id="discover-error" align="center" pack="stretch" flex="1" class="alert-container">
+            <spacer class="alert-spacer-before"/>
+            <hbox>
+              <spacer class="discover-spacer-before"/>
+              <hbox class="alert" align="center">
+                <image class="discover-logo"/>
+                <vbox flex="1" align="stretch">
+                  <label class="discover-title">&discover.title;</label>
+                  <description class="discover-description">&discover.description2;</description>
+                  <description class="discover-footer">&discover.footer;</description>
+                </vbox>
+              </hbox>
+              <spacer class="discover-spacer-after"/>
+            </hbox>
+            <spacer class="alert-spacer-after"/>
+          </vbox>
+          <browser id="discover-browser" type="content" flex="1"
+                     disablehistory="true" homepage="about:blank"/>
+        </deck>
+
+        <!-- container for views with the search/tools header -->
+        <vbox id="headered-views" flex="1">
+          <!-- main header -->
+          <hbox id="header" align="center">
+            <button id="show-all-extensions" hidden="true"
+                    label="&showAllExtensions.button.label;"
+                    command="cmd_showAllExtensions"/>
+            <spacer flex="1"/>
+            <hbox id="updates-container" align="center">
+              <image class="spinner"/>
+              <label id="updates-noneFound" hidden="true"
+                     value="&updates.noneFound.label;"/>
+              <button id="updates-manualUpdatesFound-btn" class="button-link"
+                      hidden="true" label="&updates.manualUpdatesFound.label;"
+                      command="cmd_goToAvailableUpdates"/>
+              <label id="updates-progress" hidden="true"
+                     value="&updates.updating.label;"/>
+              <label id="updates-installed" hidden="true"
+                     value="&updates.installed.label;"/>
+              <label id="updates-downloaded" hidden="true"
+                     value="&updates.downloaded.label;"/>
+              <button id="updates-restart-btn" class="button-link" hidden="true"
+                      label="&updates.restart.label;"
+                      command="cmd_restartApp"/>
+            </hbox>
+            <button id="show-disabled-unsigned-extensions" hidden="true"
+                    class="warning"
+                    label="&showUnsignedExtensions.button.label;"
+                    command="cmd_showUnsignedExtensions"/>
+            <toolbarbutton id="header-utils-btn" class="header-button" type="menu"
+                           tooltiptext="&toolsMenu.tooltip;">
+              <menupopup id="utils-menu">
+                <menuitem id="utils-updateNow"
+                          label="&updates.checkForUpdates.label;"
+                          accesskey="&updates.checkForUpdates.accesskey;"
+                          command="cmd_findAllUpdates"/>
+                <menuitem id="utils-viewUpdates"
+                          label="&updates.viewUpdates.label;"
+                          accesskey="&updates.viewUpdates.accesskey;"
+                          command="cmd_goToRecentUpdates"/>
+                <menuseparator id="utils-installFromFile-separator"/>
+                <menuitem id="utils-installFromFile"
+                          label="&installAddonFromFile.label;"
+                          accesskey="&installAddonFromFile.accesskey;"
+                          command="cmd_installFromFile"/>
+                <menuitem id="utils-debugAddons"
+                          label="&debugAddons.label;"
+                          accesskey="&debugAddons.accesskey;"
+                          command="cmd_debugAddons"/>
+                <menuseparator/>
+                <menuitem id="utils-autoUpdateDefault"
+                          label="&updates.updateAddonsAutomatically.label;"
+                          accesskey="&updates.updateAddonsAutomatically.accesskey;"
+                          type="checkbox" autocheck="false"
+                          command="cmd_toggleAutoUpdateDefault"/>
+                <menuitem id="utils-resetAddonUpdatesToAutomatic"
+                          label="&updates.resetUpdatesToAutomatic.label;"
+                          accesskey="&updates.resetUpdatesToAutomatic.accesskey;"
+                          command="cmd_resetAddonAutoUpdate"/>
+                <menuitem id="utils-resetAddonUpdatesToManual"
+                          label="&updates.resetUpdatesToManual.label;"
+                          accesskey="&updates.resetUpdatesToManual.accesskey;"
+                          command="cmd_resetAddonAutoUpdate"/>
+              </menupopup>
+            </toolbarbutton>
+            <textbox id="header-search" type="search" searchbutton="true"
+                     searchbuttonlabel="&search.buttonlabel;"
+                     placeholder="&search.placeholder;"/>
+          </hbox>
+
+          <deck id="headered-views-content" flex="1" selectedIndex="0">
+            <!-- search view -->
+            <vbox id="search-view" flex="1" class="view-pane" tabindex="0">
+              <hbox class="view-header global-warning-container" align="center">
+                <!-- global warnings -->
+                <hbox class="global-warning" flex="1">
+                  <hbox class="global-warning-safemode" flex="1" align="center"
+                        tooltiptext="&warning.safemode.label;">
+                    <image class="warning-icon"/>
+                    <label class="global-warning-text" flex="1" crop="end"
+                           value="&warning.safemode.label;"/>
+                  </hbox>
+                  <hbox class="global-warning-checkcompatibility" flex="1" align="center"
+                        tooltiptext="&warning.checkcompatibility.label;">
+                    <image class="warning-icon"/>
+                    <label class="global-warning-text" flex="1" crop="end"
+                           value="&warning.checkcompatibility.label;"/>
+                  </hbox>
+                  <button class="button-link global-warning-checkcompatibility"
+                          label="&warning.checkcompatibility.enable.label;"
+                          tooltiptext="&warning.checkcompatibility.enable.tooltip;"
+                          command="cmd_enableCheckCompatibility"/>
+                  <hbox class="global-warning-updatesecurity" flex="1" align="center"
+                        tooltiptext="&warning.updatesecurity.label;">
+                    <image class="warning-icon"/>
+                    <label class="global-warning-text" flex="1" crop="end"
+                           value="&warning.updatesecurity.label;"/>
+                  </hbox>
+                  <button class="button-link global-warning-updatesecurity"
+                          label="&warning.updatesecurity.enable.label;"
+                          tooltiptext="&warning.updatesecurity.enable.tooltip;"
+                          command="cmd_enableUpdateSecurity"/>
+                  <spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+                </hbox>
+                <spacer flex="1"/>
+                <hbox id="search-sorters" class="sort-controls"
+                      showrelevance="true" sortby="relevancescore" ascending="false"/>
+              </hbox>
+              <hbox id="search-filter" align="center">
+                <label id="search-filter-label" value="&search.filter2.label;"/>
+                <radiogroup id="search-filter-radiogroup" orient="horizontal"
+                            align="center" persist="value" value="remote">
+                  <radio id="search-filter-local" class="search-filter-radio"
+                         label="&search.filter2.installed.label;" value="local"
+                         tooltiptext="&search.filter2.installed.tooltip;"/>
+                  <radio id="search-filter-remote" class="search-filter-radio"
+                         label="&search.filter2.available.label;" value="remote"
+                         tooltiptext="&search.filter2.available.tooltip;"/>
+                </radiogroup>
+              </hbox>
+              <vbox id="search-loading" class="alert-container"
+                    flex="1" hidden="true">
+                <spacer class="alert-spacer-before"/>
+                <hbox class="alert loading" align="center">
+                  <image/>
+                  <label value="&loading.label;"/>
+                </hbox>
+                <spacer class="alert-spacer-after"/>
+              </vbox>
+              <vbox id="search-list-empty" class="alert-container"
+                    flex="1" hidden="true">
+                <spacer class="alert-spacer-before"/>
+                <vbox class="alert">
+                  <label value="&listEmpty.search.label;"/>
+                  <button class="discover-button"
+                          id="discover-button-search"
+                          label="&listEmpty.button.label;"
+                          command="cmd_goToDiscoverPane"/>
+                </vbox>
+                <spacer class="alert-spacer-after"/>
+              </vbox>
+              <richlistbox id="search-list" class="list" flex="1">
+                <hbox pack="center">
+                  <label id="search-allresults-link" class="text-link"/>
+                </hbox>
+              </richlistbox>
+            </vbox>
+
+            <!-- list view -->
+            <vbox id="list-view" flex="1" class="view-pane" align="stretch" tabindex="0">
+              <!-- info UI for add-ons that have been disabled for being unsigned -->
+              <vbox id="disabled-unsigned-addons-info" hidden="true">
+                <label id="disabled-unsigned-addons-heading" value="&disabledUnsigned.heading;"/>
+                <description>
+                  &disabledUnsigned.description.start;<label class="text-link plain" id="find-alternative-addons">&disabledUnsigned.description.findAddonsLink;</label>&disabledUnsigned.description.end;
+                </description>
+                <hbox pack="start"><label class="text-link" id="signing-learn-more">&disabledUnsigned.learnMore;</label></hbox>
+                <description id="signing-dev-info">
+                  &disabledUnsigned.devInfo.start;<label class="text-link plain" id="signing-dev-manual-link">&disabledUnsigned.devInfo.linkToManual;</label>&disabledUnsigned.devInfo.end;
+                </description>
+              </vbox>
+              <vbox id="plugindeprecation-notice" class="alert-container">
+                <hbox class="alert">
+                  <description>&pluginDeprecation.description; &#160;
+                    <label class="text-link plain" id="plugindeprecation-learnmore-link">&pluginDeprecation.learnMore;</label>
+                  </description>
+                </hbox>
+              </vbox>
+              <hbox class="view-header global-warning-container">
+                <!-- global warnings -->
+                <hbox class="global-warning" flex="1">
+                  <hbox class="global-warning-safemode" flex="1" align="center"
+                        tooltiptext="&warning.safemode.label;">
+                    <image class="warning-icon"/>
+                    <label class="global-warning-text" flex="1" crop="end"
+                           value="&warning.safemode.label;"/>
+                  </hbox>
+                  <hbox class="global-warning-checkcompatibility" flex="1" align="center"
+                        tooltiptext="&warning.checkcompatibility.label;">
+                    <image class="warning-icon"/>
+                    <label class="global-warning-text" flex="1" crop="end"
+                           value="&warning.checkcompatibility.label;"/>
+                  </hbox>
+                  <button class="button-link global-warning-checkcompatibility"
+                          label="&warning.checkcompatibility.enable.label;"
+                          tooltiptext="&warning.checkcompatibility.enable.tooltip;"
+                          command="cmd_enableCheckCompatibility"/>
+                  <hbox class="global-warning-updatesecurity" flex="1" align="center"
+                        tooltiptext="&warning.updatesecurity.label;">
+                    <image class="warning-icon"/>
+                    <label class="global-warning-text" flex="1" crop="end"
+                           value="&warning.updatesecurity.label;"/>
+                  </hbox>
+                  <button class="button-link global-warning-updatesecurity"
+                          label="&warning.updatesecurity.enable.label;"
+                          tooltiptext="&warning.updatesecurity.enable.tooltip;"
+                          command="cmd_enableUpdateSecurity"/>
+                  <spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+                </hbox>
+              </hbox>
+              <hbox class="view-header global-info-container experiment-info-container">
+                <hbox class="global-info" flex="1" align="center">
+                  <label value="&experiment.info.label;"/>
+                  <button id="experiments-learn-more"
+                          label="&experiment.info.learnmore;"
+                          tooltiptext="&experiment.info.learnmore;"
+                          accesskey="&experiment.info.learnmore.accesskey;"
+                          command="cmd_experimentsLearnMore"/>
+                  <button id="experiments-change-telemetry"
+                          label="&experiment.info.changetelemetry;"
+                          tooltiptext="&experiment.info.changetelemetry;"
+                          accesskey="&experiment.info.changetelemetry.accesskey;"
+                          command="cmd_experimentsOpenTelemetryPreferences"/>
+                  <spacer flex="5000"/> <!-- Necessary to allow the message to wrap. -->
+                </hbox>
+              </hbox>
+              <vbox id="addon-list-empty" class="alert-container"
+                    flex="1" hidden="true">
+                <spacer class="alert-spacer-before"/>
+                <vbox class="alert">
+                  <label value="&listEmpty.installed.label;"/>
+                  <button class="discover-button"
+                          id="discover-button-install"
+                          label="&listEmpty.button.label;"
+                          command="cmd_goToDiscoverPane"/>
+                </vbox>
+                <spacer class="alert-spacer-after"/>
+              </vbox>
+              <richlistbox id="addon-list" class="list" flex="1"/>
+            </vbox>
+            <!-- updates view -->
+            <vbox id="updates-view" flex="1" class="view-pane" tabindex="0">
+              <hbox class="view-header global-warning-container" align="center">
+                <!-- global warnings -->
+                <hbox class="global-warning" flex="1">
+                  <hbox class="global-warning-safemode" flex="1" align="center"
+                        tooltiptext="&warning.safemode.label;">
+                    <image class="warning-icon"/>
+                    <label class="global-warning-text" flex="1" crop="end"
+                           value="&warning.safemode.label;"/>
+                  </hbox>
+                  <hbox class="global-warning-checkcompatibility" flex="1" align="center"
+                        tooltiptext="&warning.checkcompatibility.label;">
+                    <image class="warning-icon"/>
+                    <label class="global-warning-text" flex="1" crop="end"
+                           value="&warning.checkcompatibility.label;"/>
+                  </hbox>
+                  <button class="button-link global-warning-checkcompatibility"
+                          label="&warning.checkcompatibility.enable.label;"
+                          tooltiptext="&warning.checkcompatibility.enable.tooltip;"
+                          command="cmd_enableCheckCompatibility"/>
+                  <hbox class="global-warning-updatesecurity" flex="1" align="center"
+                        tooltiptext="&warning.updatesecurity.label;">
+                    <image class="warning-icon"/>
+                    <label class="global-warning-text" flex="1" crop="end"
+                           value="&warning.updatesecurity.label;"/>
+                  </hbox>
+                  <button class="button-link global-warning-updatesecurity"
+                          label="&warning.updatesecurity.enable.label;"
+                          tooltiptext="&warning.updatesecurity.enable.tooltip;"
+                          command="cmd_enableUpdateSecurity"/>
+                  <spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+                </hbox>
+                <spacer flex="1"/>
+                <hbox id="updates-sorters" class="sort-controls" sortby="updateDate"
+                      ascending="false"/>
+              </hbox>
+              <vbox id="updates-list-empty" class="alert-container"
+                    flex="1" hidden="true">
+                <spacer class="alert-spacer-before"/>
+                <vbox class="alert">
+                  <label id="empty-availableUpdates-msg" value="&listEmpty.availableUpdates.label;"/>
+                  <label id="empty-recentUpdates-msg" value="&listEmpty.recentUpdates.label;"/>
+                  <button label="&listEmpty.findUpdates.label;"
+                          command="cmd_findAllUpdates"/>
+                </vbox>
+                <spacer class="alert-spacer-after"/>
+              </vbox>
+              <hbox id="update-actions" pack="center">
+                <button id="update-selected-btn" hidden="true"
+                        label="&updates.updateSelected.label;"
+                        tooltiptext="&updates.updateSelected.tooltip;"/>
+              </hbox>
+              <richlistbox id="updates-list" class="list" flex="1"/>
+            </vbox>
+
+            <!-- detail view -->
+            <scrollbox id="detail-view" flex="1" class="view-pane addon-view" orient="vertical" tabindex="0"
+                       role="document">
+              <!-- global warnings -->
+              <hbox class="global-warning-container global-warning">
+                <hbox class="global-warning-safemode" flex="1" align="center"
+                      tooltiptext="&warning.safemode.label;">
+                  <image class="warning-icon"/>
+                  <label class="global-warning-text" flex="1" crop="end"
+                         value="&warning.safemode.label;"/>
+                </hbox>
+                <hbox class="global-warning-checkcompatibility" flex="1" align="center"
+                      tooltiptext="&warning.checkcompatibility.label;">
+                  <image class="warning-icon"/>
+                  <label class="global-warning-text" flex="1" crop="end"
+                         value="&warning.checkcompatibility.label;"/>
+                </hbox>
+                <button class="button-link global-warning-checkcompatibility"
+                        label="&warning.checkcompatibility.enable.label;"
+                        tooltiptext="&warning.checkcompatibility.enable.tooltip;"
+                        command="cmd_enableCheckCompatibility"/>
+                <hbox class="global-warning-updatesecurity" flex="1" align="center"
+                      tooltiptext="&warning.updatesecurity.label;">
+                  <image class="warning-icon"/>
+                  <label class="global-warning-text" flex="1" crop="end"
+                         value="&warning.updatesecurity.label;"/>
+                </hbox>
+                <button class="button-link global-warning-updatesecurity"
+                        label="&warning.updatesecurity.enable.label;"
+                        tooltiptext="&warning.updatesecurity.enable.tooltip;"
+                        command="cmd_enableUpdateSecurity"/>
+                <spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+              </hbox>
+              <hbox flex="1">
+                <spacer flex="1"/>
+                <!-- "loading" splash screen -->
+                <vbox class="alert-container">
+                  <spacer class="alert-spacer-before"/>
+                  <hbox class="alert loading">
+                    <image/>
+                    <label value="&loading.label;"/>
+                  </hbox>
+                  <spacer class="alert-spacer-after"/>
+                </vbox>
+                <!-- actual detail view -->
+                <vbox class="detail-view-container" flex="3" contextmenu="addonitem-popup">
+                  <vbox id="detail-notifications">
+                    <hbox id="warning-container" align="center" class="warning">
+                      <image class="warning-icon"/>
+                      <label id="detail-warning" flex="1"/>
+                      <label id="detail-warning-link" class="text-link"/>
+                      <spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+                    </hbox>
+                    <hbox id="error-container" align="center" class="error">
+                      <image class="error-icon"/>
+                      <label id="detail-error" flex="1"/>
+                      <label id="detail-error-link" class="text-link"/>
+                      <spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+                    </hbox>
+                    <hbox id="pending-container" align="center" class="pending">
+                      <image class="pending-icon"/>
+                      <label id="detail-pending" flex="1"/>
+                      <button id="detail-restart-btn" class="button-link"
+                              label="&addon.restartNow.label;"
+                              command="cmd_restartApp"/>
+                      <button id="detail-undo-btn" class="button-link"
+                              label="&addon.undoAction.label;"
+                              tooltipText="&addon.undoAction.tooltip;"
+                              command="cmd_cancelOperation"/>
+                      <spacer flex="5000"/> <!-- Necessary to allow the message to wrap -->
+                    </hbox>
+                  </vbox>
+                  <hbox align="start">
+                    <vbox id="detail-icon-container" align="end">
+                      <image id="detail-icon" class="icon"/>
+                    </vbox>
+                    <vbox flex="1">
+                      <vbox id="detail-summary">
+                        <hbox id="detail-name-container" class="name-container"
+                              align="start">
+                          <label id="detail-name" flex="1"/>
+                          <label id="detail-version"/>
+                          <label class="disabled-postfix" value="&addon.disabled.postfix;"/>
+                          <label class="update-postfix" value="&addon.update.postfix;"/>
+                          <spacer flex="5000"/> <!-- Necessary to allow the name to wrap -->
+                        </hbox>
+                        <label id="detail-creator" class="creator"/>
+                      </vbox>
+                      <hbox id="detail-experiment-container">
+                        <svg width="8" height="8" viewBox="0 0 8 8" version="1.1"
+                             xmlns="http://www.w3.org/2000/svg"
+                             id="detail-experiment-bullet-container">
+                          <circle cx="4" cy="4" r="4" id="detail-experiment-bullet"/>
+                        </svg>
+                        <label id="detail-experiment-state"/>
+                        <label id="detail-experiment-time"/>
+                      </hbox>
+                      <hbox id="detail-desc-container" align="start">
+                        <vbox id="detail-screenshot-box" pack="center" hidden="true"> <!-- Necessary to work around bug 394738 -->
+                          <image id="detail-screenshot"/>
+                        </vbox>
+                        <vbox flex="1">
+                          <description id="detail-desc"/>
+                          <description id="detail-fulldesc"/>
+                        </vbox>
+                      </hbox>
+                      <vbox id="detail-contributions">
+                        <description id="detail-contrib-description">
+                          &detail.contributions.description;
+                        </description>
+                        <hbox align="center">
+                          <label id="detail-contrib-suggested"/>
+                          <spacer flex="1"/>
+                          <button id="detail-contrib-btn"
+                                  label="&cmd.contribute.label;"
+                                  accesskey="&cmd.contribute.accesskey;"
+                                  tooltiptext="&cmd.contribute.tooltip;"
+                                  command="cmd_contribute"/>
+                        </hbox>
+                      </vbox>
+                      <grid id="detail-grid">
+                        <columns>
+                           <column flex="1"/>
+                           <column flex="2"/>
+                        </columns>
+                        <rows id="detail-rows">
+                          <row class="detail-row-complex" id="detail-updates-row">
+                            <label class="detail-row-label" value="&detail.updateType;"/>
+                            <hbox align="center">
+                              <radiogroup id="detail-autoUpdate" orient="horizontal">
+                                <!-- The values here need to match the values of
+                                     AddonManager.AUTOUPDATE_* -->
+                                <radio label="&detail.updateDefault.label;"
+                                       tooltiptext="&detail.updateDefault.tooltip;"
+                                       value="1"/>
+                                <radio label="&detail.updateAutomatic.label;"
+                                       tooltiptext="&detail.updateAutomatic.tooltip;"
+                                       value="2"/>
+                                <radio label="&detail.updateManual.label;"
+                                       tooltiptext="&detail.updateManual.tooltip;"
+                                       value="0"/>
+                              </radiogroup>
+                              <button id="detail-findUpdates-btn" class="button-link"
+                                      label="&detail.checkForUpdates.label;"
+                                      accesskey="&detail.checkForUpdates.accesskey;"
+                                      tooltiptext="&detail.checkForUpdates.tooltip;"
+                                      command="cmd_findItemUpdates"/>
+                            </hbox>
+                          </row>
+                          <row class="detail-row" id="detail-dateUpdated" label="&detail.lastupdated.label;"/>
+                          <row class="detail-row-complex" id="detail-homepage-row" label="&detail.home;">
+                            <label class="detail-row-label" value="&detail.home;"/>
+                            <label id="detail-homepage" class="detail-row-value text-link" crop="end"/>
+                          </row>
+                          <row class="detail-row-complex" id="detail-repository-row" label="&detail.repository;">
+                            <label class="detail-row-label" value="&detail.repository;"/>
+                            <label id="detail-repository" class="detail-row-value text-link"/>
+                          </row>
+                          <row class="detail-row" id="detail-size" label="&detail.size;"/>
+                          <row class="detail-row-complex" id="detail-rating-row">
+                            <label class="detail-row-label" value="&rating2.label;"/>
+                            <hbox>
+                              <label id="detail-rating" class="meta-value meta-rating"
+                                     showrating="average"/>
+                              <label id="detail-reviews" class="text-link"/>
+                            </hbox>
+                          </row>
+                          <row class="detail-row" id="detail-downloads" label="&detail.numberOfDownloads.label;"/>
+                        </rows>
+                      </grid>
+                      <hbox id="detail-controls">
+                        <button id="detail-prefs-btn" class="addon-control preferences"
+#ifdef XP_WIN
+                                label="&detail.showPreferencesWin.label;"
+                                accesskey="&detail.showPreferencesWin.accesskey;"
+                                tooltiptext="&detail.showPreferencesWin.tooltip;"
+#else
+                                label="&detail.showPreferencesUnix.label;"
+                                accesskey="&detail.showPreferencesUnix.accesskey;"
+                                tooltiptext="&detail.showPreferencesUnix.tooltip;"
+#endif
+                                command="cmd_showItemPreferences"/>
+                        <spacer flex="1"/>
+                        <button id="detail-enable-btn" class="addon-control enable"
+                                label="&cmd.enableAddon.label;"
+                                accesskey="&cmd.enableAddon.accesskey;"
+                                command="cmd_enableItem"/>
+                        <button id="detail-disable-btn" class="addon-control disable"
+                                label="&cmd.disableAddon.label;"
+                                accesskey="&cmd.disableAddon.accesskey;"
+                                command="cmd_disableItem"/>
+                        <button id="detail-uninstall-btn" class="addon-control remove"
+                                label="&cmd.uninstallAddon.label;"
+                                accesskey="&cmd.uninstallAddon.accesskey;"
+                                command="cmd_uninstallItem"/>
+                        <button id="detail-purchase-btn" class="addon-control purchase"
+                                command="cmd_purchaseItem"/>
+                        <button id="detail-install-btn" class="addon-control install"
+                                label="&cmd.installAddon.label;"
+                                accesskey="&cmd.installAddon.accesskey;"
+                                command="cmd_installItem"/>
+                        <menulist id="detail-state-menulist"
+                                  crop="none" sizetopopup="always"
+                                  tooltiptext="&cmd.stateMenu.tooltip;">
+                          <menupopup>
+                            <menuitem id="detail-ask-to-activate-menuitem"
+                                      class="addon-control"
+                                      label="&cmd.askToActivate.label;"
+                                      tooltiptext="&cmd.askToActivate.tooltip;"
+                                      command="cmd_askToActivateItem"/>
+                            <menuitem id="detail-always-activate-menuitem"
+                                      class="addon-control"
+                                      label="&cmd.alwaysActivate.label;"
+                                      tooltiptext="&cmd.alwaysActivate.tooltip;"
+                                      command="cmd_alwaysActivateItem"/>
+                            <menuitem id="detail-never-activate-menuitem"
+                                      class="addon-control"
+                                      label="&cmd.neverActivate.label;"
+                                      tooltiptext="&cmd.neverActivate.tooltip;"
+                                      command="cmd_neverActivateItem"/>
+                          </menupopup>
+                        </menulist>
+                      </hbox>
+                    </vbox>
+                  </hbox>
+                </vbox>
+                <spacer flex="1"/>
+              </hbox>
+            </scrollbox>
+          </deck>
+        </vbox>
+      </deck>
+    </vbox>
+  </hbox>
+</page>
diff --git a/toolkit/mozapps/webextensions/content/gmpPrefs.xul b/toolkit/mozapps/webextensions/content/gmpPrefs.xul
new file mode 100644
index 000000000..ea7ee92fa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/gmpPrefs.xul
@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+- License, v. 2.0. If a copy of the MPL was not distributed with this file,
+- You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!-- This is intentionally empty and a dummy to let the GMPProvider
+     have a preferences button in the list view. -->
diff --git a/toolkit/mozapps/webextensions/content/list.js b/toolkit/mozapps/webextensions/content/list.js
new file mode 100644
index 000000000..a31922703
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/list.js
@@ -0,0 +1,165 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const kXULNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
+const kDialog = "dialog";
+
+/**
+ * This dialog can be initialized from parameters supplied via window.arguments
+ * or it can be used to display blocklist notification and blocklist blocked
+ * installs via nsIDialogParamBlock as is done by nsIExtensionManager.
+ *
+ * When using this dialog with window.arguments it must be opened modally, the
+ * caller can inspect the user action after the dialog closes by inspecting the
+ * value of the |result| parameter on this object which is set to the dlgtype
+ * of the button used to close the dialog.
+ *
+ * window.arguments[0] is an array of strings to display in the tree. If the
+ * array is empty the tree will not be displayed.
+ * window.arguments[1] a JS Object with the following properties:
+ *
+ * title:    A title string, to be displayed in the title bar of the dialog.
+ * message1: A message string, displayed above the addon list
+ * message2: A message string, displayed below the addon list
+ * message3: A bolded message string, displayed below the addon list
+ * moreInfoURL: An url for displaying more information
+ * iconClass  : Can be one of the following values (default is alert-icon)
+ *              alert-icon, error-icon, or question-icon
+ *
+ * If no value is supplied for message1, message2, message3, or moreInfoURL,
+ * the element is not displayed.
+ *
+ * buttons: {
+ *  accept: { label: "A Label for the Accept button",
+ *            focused: true },
+ *  cancel: { label: "A Label for the Cancel button" },
+ *  ...
+ * },
+ *
+ * result:  The dlgtype of button that was used to dismiss the dialog.
+ */
+
+"use strict";
+
+var gButtons = { };
+
+function init() {
+  var de = document.documentElement;
+  var items = [];
+  if (window.arguments[0] instanceof Components.interfaces.nsIDialogParamBlock) {
+    // This is a warning about a blocklisted item the user is trying to install
+    var args = window.arguments[0];
+    var softblocked = args.GetInt(0) == 1 ? true : false;
+
+    var extensionsBundle = document.getElementById("extensionsBundle");
+    try {
+      var formatter = Components.classes["@mozilla.org/toolkit/URLFormatterService;1"]
+                                .getService(Components.interfaces.nsIURLFormatter);
+      var url = formatter.formatURLPref("extensions.blocklist.detailsURL");
+    }
+    catch (e) { }
+
+    var params = {
+      moreInfoURL: url,
+    };
+
+    if (softblocked) {
+      params.title = extensionsBundle.getString("softBlockedInstallTitle");
+      params.message1 = extensionsBundle.getFormattedString("softBlockedInstallMsg",
+                                                           [args.GetString(0)]);
+      var accept = de.getButton("accept");
+      accept.label = extensionsBundle.getString("softBlockedInstallAcceptLabel");
+      accept.accessKey = extensionsBundle.getString("softBlockedInstallAcceptKey");
+      de.getButton("cancel").focus();
+      document.addEventListener("dialogaccept", allowInstall, false);
+    }
+    else {
+      params.title = extensionsBundle.getString("blocklistedInstallTitle2");
+      params.message1 = extensionsBundle.getFormattedString("blocklistedInstallMsg2",
+                                                           [args.GetString(0)]);
+      de.buttons = "accept";
+      de.getButton("accept").focus();
+    }
+  }
+  else {
+    items = window.arguments[0];
+    params = window.arguments[1];
+  }
+
+  var addons = document.getElementById("addonsChildren");
+  if (items.length > 0)
+    document.getElementById("addonsTree").hidden = false;
+
+  // Fill the addons list
+  for (var item of items) {
+    var treeitem = document.createElementNS(kXULNS, "treeitem");
+    var treerow  = document.createElementNS(kXULNS, "treerow");
+    var treecell = document.createElementNS(kXULNS, "treecell");
+    treecell.setAttribute("label", item);
+    treerow.appendChild(treecell);
+    treeitem.appendChild(treerow);
+    addons.appendChild(treeitem);
+  }
+
+  // Set the messages
+  var messages = ["message1", "message2", "message3"];
+  for (let messageEntry of messages) {
+    if (messageEntry in params) {
+      var message = document.getElementById(messageEntry);
+      message.hidden = false;
+      message.appendChild(document.createTextNode(params[messageEntry]));
+    }
+  }
+
+  document.getElementById("infoIcon").className =
+    params["iconClass"] ? "spaced " + params["iconClass"] : "spaced alert-icon";
+
+  if ("moreInfoURL" in params && params["moreInfoURL"]) {
+    message = document.getElementById("moreInfo");
+    message.value = extensionsBundle.getString("moreInfoText");
+    message.setAttribute("href", params["moreInfoURL"]);
+    document.getElementById("moreInfoBox").hidden = false;
+  }
+
+  // Set the window title
+  if ("title" in params)
+    document.title = params.title;
+
+  // Set up the buttons
+  if ("buttons" in params) {
+    gButtons = params.buttons;
+    var buttonString = "";
+    for (var buttonType in gButtons)
+      buttonString += "," + buttonType;
+    de.buttons = buttonString.substr(1);
+    for (buttonType in gButtons) {
+      var button = de.getButton(buttonType);
+      button.label = gButtons[buttonType].label;
+      if (gButtons[buttonType].focused)
+        button.focus();
+      document.addEventListener(kDialog + buttonType, handleButtonCommand, true);
+    }
+  }
+}
+
+function shutdown() {
+  for (var buttonType in gButtons)
+    document.removeEventListener(kDialog + buttonType, handleButtonCommand, true);
+}
+
+function allowInstall() {
+  var args = window.arguments[0];
+  args.SetInt(1, 1);
+}
+
+/**
+ * Watch for the user hitting one of the buttons to dismiss the dialog
+ * and report the result back to the caller through the |result| property on
+ * the arguments object.
+ */
+function handleButtonCommand(event) {
+  window.arguments[1].result = event.type.substr(kDialog.length);
+}
diff --git a/toolkit/mozapps/webextensions/content/list.xul b/toolkit/mozapps/webextensions/content/list.xul
new file mode 100644
index 000000000..65efeb6a2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/list.xul
@@ -0,0 +1,44 @@
+<?xml version="1.0"?>
+
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/"?>
+
+<dialog id="addonList" windowtype="Addons:List"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        onunload="shutdown();"
+        buttons="accept,cancel" onload="init();">
+
+  <script type="application/javascript" src="chrome://global/content/globalOverlay.js"/>
+  <script type="application/javascript" 
+          src="chrome://mozapps/content/extensions/list.js"/>
+          
+  <stringbundle id="extensionsBundle" 
+                src="chrome://mozapps/locale/extensions/extensions.properties"/>
+  <stringbundle id="brandBundle"
+                src="chrome://branding/locale/brand.properties"/>
+
+  <hbox align="start">
+    <vbox>
+      <image id="infoIcon"/>
+    </vbox>
+    <vbox class="spaced" style="min-width: 20em; max-width: 40em">
+      <label id="message1" class="spaced" hidden="true"/>
+      <separator class="thin"/>
+      <tree id="addonsTree" rows="6" hidecolumnpicker="true" hidden="true" class="spaced">
+        <treecols style="max-width: 25em;">
+          <treecol flex="1" id="nameColumn" hideheader="true"/>
+        </treecols>
+        <treechildren id="addonsChildren"/>
+      </tree>
+      <label id="message2" class="spaced" hidden="true"/>
+      <label class="bold spaced" id="message3" hidden="true"/>
+      <hbox id="moreInfoBox" hidden="true">
+        <label id="moreInfo" class="text-link spaced"/>
+        <spacer flex="1"/>
+      </hbox>
+    </vbox>
+  </hbox>
+</dialog>
diff --git a/toolkit/mozapps/webextensions/content/newaddon.js b/toolkit/mozapps/webextensions/content/newaddon.js
new file mode 100644
index 000000000..b1ad5631b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/newaddon.js
@@ -0,0 +1,137 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/AddonManager.jsm");
+
+var gAddon = null;
+
+// If the user enables the add-on through some other UI close this window
+var EnableListener = {
+  onEnabling: function(aAddon) {
+    if (aAddon.id == gAddon.id)
+      window.close();
+  }
+}
+AddonManager.addAddonListener(EnableListener);
+
+function initialize() {
+  // About URIs don't implement nsIURL so we have to find the query string
+  // manually
+  let spec = document.location.href;
+  let pos = spec.indexOf("?");
+  let query = "";
+  if (pos >= 0)
+    query = spec.substring(pos + 1);
+
+  // Just assume the query is "id=<id>"
+  let id = query.substring(3);
+  if (!id) {
+    window.location = "about:blank";
+    return;
+  }
+
+  let bundle = Services.strings.createBundle("chrome://mozapps/locale/extensions/newaddon.properties");
+
+  AddonManager.getAddonByID(id, function(aAddon) {
+    // If the add-on doesn't exist or it is already enabled or it has already
+    // been seen or it cannot be enabled then this UI is useless, just close it.
+    // This shouldn't normally happen unless session restore restores the tab.
+    if (!aAddon || !aAddon.userDisabled || aAddon.seen ||
+        !(aAddon.permissions & AddonManager.PERM_CAN_ENABLE)) {
+      window.close();
+      return;
+    }
+
+    gAddon = aAddon;
+
+    document.getElementById("addon-info").setAttribute("type", aAddon.type);
+
+    let icon = document.getElementById("icon");
+    if (aAddon.icon64URL)
+      icon.src = aAddon.icon64URL;
+    else if (aAddon.iconURL)
+      icon.src = aAddon.iconURL;
+
+    let name = bundle.formatStringFromName("name", [aAddon.name, aAddon.version],
+                                           2);
+    document.getElementById("name").value = name;
+
+    if (aAddon.creator) {
+      let creator = bundle.formatStringFromName("author", [aAddon.creator], 1);
+      document.getElementById("author").value = creator;
+    } else {
+      document.getElementById("author").hidden = true;
+    }
+
+    let uri = "getResourceURI" in aAddon ? aAddon.getResourceURI() : null;
+    let locationLabel = document.getElementById("location");
+    if (uri instanceof Ci.nsIFileURL) {
+      let location = bundle.formatStringFromName("location", [uri.file.path], 1);
+      locationLabel.value = location;
+      locationLabel.setAttribute("tooltiptext", location);
+    } else {
+      document.getElementById("location").hidden = true;
+    }
+
+    // Only mark the add-on as seen if the page actually gets focus
+    if (document.hasFocus()) {
+      aAddon.markAsSeen();
+    }
+    else {
+      document.addEventListener("focus", () => aAddon.markAsSeen(), false);
+    }
+
+    var event = document.createEvent("Events");
+    event.initEvent("AddonDisplayed", true, true);
+    document.dispatchEvent(event);
+  });
+}
+
+function unload() {
+  AddonManager.removeAddonListener(EnableListener);
+}
+
+function continueClicked() {
+  AddonManager.removeAddonListener(EnableListener);
+
+  if (document.getElementById("allow").checked) {
+    gAddon.userDisabled = false;
+
+    if (gAddon.pendingOperations & AddonManager.PENDING_ENABLE) {
+      document.getElementById("allow").disabled = true;
+      document.getElementById("buttonDeck").selectedPanel = document.getElementById("restartPanel");
+      return;
+    }
+  }
+
+  window.close();
+}
+
+function restartClicked() {
+  let cancelQuit = Cc["@mozilla.org/supports-PRBool;1"].
+                   createInstance(Ci.nsISupportsPRBool);
+  Services.obs.notifyObservers(cancelQuit, "quit-application-requested",
+                               "restart");
+  if (cancelQuit.data)
+    return; // somebody canceled our quit request
+
+  window.close();
+
+  let appStartup = Components.classes["@mozilla.org/toolkit/app-startup;1"].
+                   getService(Components.interfaces.nsIAppStartup);
+  appStartup.quit(Ci.nsIAppStartup.eAttemptQuit |  Ci.nsIAppStartup.eRestart);
+}
+
+function cancelClicked() {
+  gAddon.userDisabled = true;
+  AddonManager.addAddonListener(EnableListener);
+
+  document.getElementById("allow").disabled = false;
+  document.getElementById("buttonDeck").selectedPanel = document.getElementById("continuePanel");
+}
diff --git a/toolkit/mozapps/webextensions/content/newaddon.xul b/toolkit/mozapps/webextensions/content/newaddon.xul
new file mode 100644
index 000000000..1d8545249
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/newaddon.xul
@@ -0,0 +1,67 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://mozapps/skin/extensions/newaddon.css"?>
+
+<!DOCTYPE page [
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd" >
+%brandDTD;
+<!ENTITY % newaddonDTD SYSTEM "chrome://mozapps/locale/extensions/newaddon.dtd">
+%newaddonDTD;
+]>
+
+<page xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+      xmlns:xhtml="http://www.w3.org/1999/xhtml" title="&title;"
+      disablefastfind="true" id="addon-page" onload="initialize()"
+      onunload="unload()" role="application" align="stretch" pack="stretch">
+
+  <xhtml:link rel="shortcut icon" style="display: none"
+              href="chrome://mozapps/skin/extensions/extensionGeneric-16.png"/>
+
+  <script type="application/javascript"
+          src="chrome://mozapps/content/extensions/newaddon.js"/>
+
+  <scrollbox id="addon-scrollbox" align="center">
+    <spacer id="spacer-start"/>
+
+    <vbox id="addon-container" class="main-content">
+      <description>&intro;</description>
+
+      <hbox id="addon-info">
+        <image id="icon"/>
+        <vbox flex="1">
+          <label id="name"/>
+          <label id="author"/>
+          <label id="location" crop="end"/>
+        </vbox>
+      </hbox>
+
+      <hbox id="warning">
+        <image id="warning-icon"/>
+        <description flex="1">&warning;</description>
+      </hbox>
+
+      <checkbox id="allow" label="&allow;"/>
+      <description id="later">&later;</description>
+
+      <deck id="buttonDeck">
+        <hbox id="continuePanel">
+          <button id="continue-button" label="&continue;"
+                  oncommand="continueClicked()"/>
+        </hbox>
+        <vbox id="restartPanel">
+          <description id="restartMessage">&restartMessage;</description>
+          <hbox id="restartPanelButtons">
+            <button id="restart-button" label="&restartButton;" oncommand="restartClicked()"/>
+            <button id="cancel-button" label="&cancelButton;" oncommand="cancelClicked()"/>
+          </hbox>
+        </vbox>
+      </deck>
+    </vbox>
+
+    <spacer id="spacer-end"/>
+  </scrollbox>
+</page>
diff --git a/toolkit/mozapps/webextensions/content/pluginPrefs.xul b/toolkit/mozapps/webextensions/content/pluginPrefs.xul
new file mode 100644
index 000000000..c3fdbfa5b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/pluginPrefs.xul
@@ -0,0 +1,20 @@
+<?xml version="1.0"?>
+
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this file,
+   - You can obtain one at http://mozilla.org/MPL/2.0/.  -->
+
+<!DOCTYPE window SYSTEM "chrome://pluginproblem/locale/pluginproblem.dtd">
+
+<vbox xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <setting type="control" title="&plugin.file;">
+    <label class="text-list" id="pluginLibraries"/>
+  </setting>
+  <setting type="control" title="&plugin.mimeTypes;">
+    <label class="text-list" id="pluginMimeTypes"/>
+  </setting>
+  <setting type="bool" pref="dom.ipc.plugins.flash.disable-protected-mode"
+           inverted="true" title="&plugin.flashProtectedMode.label;"
+           id="pluginEnableProtectedMode"
+           learnmore="https://support.mozilla.org/kb/flash-protected-mode-settings" />
+</vbox>
diff --git a/toolkit/mozapps/webextensions/content/setting.xml b/toolkit/mozapps/webextensions/content/setting.xml
new file mode 100644
index 000000000..2b70eb0d0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/setting.xml
@@ -0,0 +1,486 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<!DOCTYPE page [
+<!ENTITY % extensionsDTD SYSTEM "chrome://mozapps/locale/extensions/extensions.dtd">
+%extensionsDTD;
+]>
+
+<!-- import-globals-from extensions.js -->
+
+<bindings xmlns="http://www.mozilla.org/xbl"
+          xmlns:xbl="http://www.mozilla.org/xbl"
+          xmlns:html="http://www.w3.org/1999/xhtml"
+          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <binding id="setting-base">
+    <implementation>
+      <constructor><![CDATA[
+        this.preferenceChanged();
+
+        this.addEventListener("keypress", function(event) {
+          event.stopPropagation();
+        }, false);
+
+        if (this.usePref)
+          Services.prefs.addObserver(this.pref, this._observer, true);
+      ]]></constructor>
+
+      <field name="_observer"><![CDATA[({
+        _self: this,
+
+        QueryInterface: function(aIID) {
+          const Ci = Components.interfaces;
+          if (aIID.equals(Ci.nsIObserver) ||
+              aIID.equals(Ci.nsISupportsWeakReference) ||
+              aIID.equals(Ci.nsISupports))
+            return this;
+
+          throw Components.Exception("No interface", Components.results.NS_ERROR_NO_INTERFACE);
+        },
+
+        observe: function(aSubject, aTopic, aPrefName) {
+          if (aTopic != "nsPref:changed")
+            return;
+
+          if (this._self.pref == aPrefName)
+            this._self.preferenceChanged();
+        }
+      })]]>
+      </field>
+
+      <method name="fireEvent">
+        <parameter name="eventName"/>
+        <parameter name="funcStr"/>
+        <body>
+          <![CDATA[
+            let body = funcStr || this.getAttribute(eventName);
+            if (!body)
+              return;
+
+            try {
+              let event = document.createEvent("Events");
+              event.initEvent(eventName, true, true);
+              let f = new Function("event", body);
+              f.call(this, event);
+            }
+            catch (e) {
+              Cu.reportError(e);
+            }
+          ]]>
+        </body>
+      </method>
+
+      <method name="valueFromPreference">
+        <body>
+        <![CDATA[
+          // Should be code to set the from the preference input.value
+          throw Components.Exception("No valueFromPreference implementation",
+                                     Components.results.NS_ERROR_NOT_IMPLEMENTED);
+        ]]>
+        </body>
+      </method>
+
+      <method name="valueToPreference">
+        <body>
+        <![CDATA[
+          // Should be code to set the input.value from the preference
+          throw Components.Exception("No valueToPreference implementation",
+                                     Components.results.NS_ERROR_NOT_IMPLEMENTED);
+        ]]>
+        </body>
+      </method>
+
+      <method name="inputChanged">
+        <body>
+        <![CDATA[
+          if (this.usePref && !this._updatingInput) {
+            this.valueToPreference();
+            this.fireEvent("oninputchanged");
+          }
+        ]]>
+        </body>
+      </method>
+
+      <method name="preferenceChanged">
+        <body>
+        <![CDATA[
+          if (this.usePref) {
+            this._updatingInput = true;
+            try {
+              this.valueFromPreference();
+              this.fireEvent("onpreferencechanged");
+            } catch (e) {}
+            this._updatingInput = false;
+          }
+        ]]>
+        </body>
+      </method>
+
+      <property name="usePref" readonly="true" onget="return this.hasAttribute('pref');"/>
+      <property name="pref" readonly="true" onget="return this.getAttribute('pref');"/>
+      <property name="type" readonly="true" onget="return this.getAttribute('type');"/>
+      <property name="value" onget="return this.input.value;" onset="return this.input.value = val;"/>
+
+      <field name="_updatingInput">false</field>
+      <field name="input">document.getAnonymousElementByAttribute(this, "anonid", "input");</field>
+      <field name="settings">
+        this.parentNode.localName == "settings" ? this.parentNode : null;
+      </field>
+    </implementation>
+  </binding>
+
+  <binding id="setting-bool" extends="chrome://mozapps/content/extensions/setting.xml#setting-base">
+    <content>
+      <xul:vbox>
+        <xul:hbox class="preferences-alignment">
+          <xul:label class="preferences-title" flex="1" xbl:inherits="xbl:text=title"/>
+        </xul:hbox>
+        <xul:description class="preferences-description" flex="1" xbl:inherits="xbl:text=desc"/>
+        <xul:label class="preferences-learnmore text-link"
+                   onclick="document.getBindingParent(this).openLearnMore()">&setting.learnmore;</xul:label>
+      </xul:vbox>
+      <xul:hbox class="preferences-alignment">
+        <xul:checkbox anonid="input" xbl:inherits="disabled,onlabel,offlabel,label=checkboxlabel" oncommand="inputChanged();"/>
+      </xul:hbox>
+    </content>
+
+    <implementation>
+      <method name="valueFromPreference">
+        <body>
+        <![CDATA[
+          let val = Services.prefs.getBoolPref(this.pref);
+          this.value = this.inverted ? !val : val;
+         ]]>
+        </body>
+      </method>
+
+      <method name="valueToPreference">
+        <body>
+        <![CDATA[
+          let val = this.value;
+          Services.prefs.setBoolPref(this.pref, this.inverted ? !val : val);
+        ]]>
+        </body>
+      </method>
+
+      <property name="value" onget="return this.input.checked;" onset="return this.input.setChecked(val);"/>
+      <property name="inverted" readonly="true" onget="return this.getAttribute('inverted');"/>
+
+      <method name="openLearnMore">
+        <body>
+        <![CDATA[
+          window.open(this.getAttribute("learnmore"), "_blank");
+        ]]>
+        </body>
+      </method>
+    </implementation>
+  </binding>
+
+  <binding id="setting-boolint" extends="chrome://mozapps/content/extensions/setting.xml#setting-bool">
+    <implementation>
+      <method name="valueFromPreference">
+        <body>
+        <![CDATA[
+          let val = Services.prefs.getIntPref(this.pref);
+          this.value = (val == this.getAttribute("on"));
+         ]]>
+        </body>
+      </method>
+
+      <method name="valueToPreference">
+        <body>
+        <![CDATA[
+          Services.prefs.setIntPref(this.pref, this.getAttribute(this.value ? "on" : "off"));
+        ]]>
+        </body>
+      </method>
+    </implementation>
+  </binding>
+
+  <binding id="setting-localized-bool" extends="chrome://mozapps/content/extensions/setting.xml#setting-bool">
+    <implementation>
+      <method name="valueFromPreference">
+        <body>
+        <![CDATA[
+          let val = Services.prefs.getComplexValue(this.pref, Components.interfaces.nsIPrefLocalizedString).data;
+          if (this.inverted) val = !val;
+          this.value = (val == "true");
+         ]]>
+        </body>
+      </method>
+
+      <method name="valueToPreference">
+        <body>
+        <![CDATA[
+          let val = this.value;
+          if (this.inverted) val = !val;
+          let pref = Components.classes["@mozilla.org/pref-localizedstring;1"].createInstance(Components.interfaces.nsIPrefLocalizedString);
+          pref.data = this.inverted ? (!val).toString() : val.toString();
+          Services.prefs.setComplexValue(this.pref, Components.interfaces.nsIPrefLocalizedString, pref);
+        ]]>
+        </body>
+      </method>
+    </implementation>
+  </binding>
+
+  <binding id="setting-integer" extends="chrome://mozapps/content/extensions/setting.xml#setting-base">
+    <content>
+      <xul:vbox>
+        <xul:hbox class="preferences-alignment">
+          <xul:label class="preferences-title" flex="1" xbl:inherits="xbl:text=title"/>
+        </xul:hbox>
+        <xul:description class="preferences-description" flex="1" xbl:inherits="xbl:text=desc"/>
+      </xul:vbox>
+      <xul:hbox class="preferences-alignment">
+        <xul:textbox type="number" anonid="input" oninput="inputChanged();" onchange="inputChanged();"
+                     xbl:inherits="disabled,emptytext,min,max,increment,hidespinbuttons,wraparound,size"/>
+      </xul:hbox>
+    </content>
+
+    <implementation>
+      <method name="valueFromPreference">
+        <body>
+        <![CDATA[
+          let val = Services.prefs.getIntPref(this.pref);
+          this.value = val;
+         ]]>
+        </body>
+      </method>
+
+      <method name="valueToPreference">
+        <body>
+        <![CDATA[
+          Services.prefs.setIntPref(this.pref, this.value);
+        ]]>
+        </body>
+      </method>
+    </implementation>
+  </binding>
+
+  <binding id="setting-control" extends="chrome://mozapps/content/extensions/setting.xml#setting-base">
+    <content>
+      <xul:vbox>
+        <xul:hbox class="preferences-alignment">
+          <xul:label class="preferences-title" flex="1" xbl:inherits="xbl:text=title"/>
+        </xul:hbox>
+        <xul:description class="preferences-description" flex="1" xbl:inherits="xbl:text=desc"/>
+      </xul:vbox>
+      <xul:hbox class="preferences-alignment">
+        <children/>
+      </xul:hbox>
+    </content>
+  </binding>
+
+  <binding id="setting-string" extends="chrome://mozapps/content/extensions/setting.xml#setting-base">
+    <content>
+      <xul:vbox>
+        <xul:hbox class="preferences-alignment">
+          <xul:label class="preferences-title" flex="1" xbl:inherits="xbl:text=title"/>
+        </xul:hbox>
+        <xul:description class="preferences-description" flex="1" xbl:inherits="xbl:text=desc"/>
+      </xul:vbox>
+      <xul:hbox class="preferences-alignment">
+        <xul:textbox anonid="input" flex="1" oninput="inputChanged();"
+                     xbl:inherits="disabled,emptytext,type=inputtype,min,max,increment,hidespinbuttons,decimalplaces,wraparound"/>
+      </xul:hbox>
+    </content>
+
+    <implementation>
+      <method name="valueFromPreference">
+        <body>
+        <![CDATA[
+          this.value = Preferences.get(this.pref, "");
+         ]]>
+        </body>
+      </method>
+
+      <method name="valueToPreference">
+        <body>
+        <![CDATA[
+          Preferences.set(this.pref, this.value);
+        ]]>
+        </body>
+      </method>
+    </implementation>
+  </binding>
+
+  <binding id="setting-color" extends="chrome://mozapps/content/extensions/setting.xml#setting-base">
+    <content>
+      <xul:vbox>
+        <xul:hbox class="preferences-alignment">
+          <xul:label class="preferences-title" flex="1" xbl:inherits="xbl:text=title"/>
+        </xul:hbox>
+        <xul:description class="preferences-description" flex="1" xbl:inherits="xbl:text=desc"/>
+      </xul:vbox>
+      <xul:hbox class="preferences-alignment">
+        <xul:colorpicker type="button" anonid="input" xbl:inherits="disabled" onchange="document.getBindingParent(this).inputChanged();"/>
+      </xul:hbox>
+    </content>
+
+    <implementation>
+      <method name="valueFromPreference">
+        <body>
+        <![CDATA[
+          // We must wait for the colorpicker's binding to be applied before setting the value
+          if (!this.input.color)
+            this.input.initialize();
+          this.value = Services.prefs.getCharPref(this.pref);
+        ]]>
+        </body>
+      </method>
+
+      <method name="valueToPreference">
+        <body>
+        <![CDATA[
+          Services.prefs.setCharPref(this.pref, this.value);
+        ]]>
+        </body>
+      </method>
+
+      <property name="value" onget="return this.input.color;" onset="return this.input.color = val;"/>
+    </implementation>
+  </binding>
+
+  <binding id="setting-path" extends="chrome://mozapps/content/extensions/setting.xml#setting-base">
+    <content>
+      <xul:vbox>
+        <xul:hbox class="preferences-alignment">
+          <xul:label class="preferences-title" flex="1" xbl:inherits="xbl:text=title"/>
+        </xul:hbox>
+        <xul:description class="preferences-description" flex="1" xbl:inherits="xbl:text=desc"/>
+      </xul:vbox>
+      <xul:hbox class="preferences-alignment">
+        <xul:button type="button" anonid="button" label="&settings.path.button.label;" xbl:inherits="disabled" oncommand="showPicker();"/>
+        <xul:label anonid="input" flex="1" crop="center" xbl:inherits="disabled"/>
+      </xul:hbox>
+    </content>
+
+    <implementation>
+      <method name="showPicker">
+        <body>
+        <![CDATA[
+          var filePicker = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
+          filePicker.init(window, this.getAttribute("title"),
+                          this.type == "file" ? Ci.nsIFilePicker.modeOpen : Ci.nsIFilePicker.modeGetFolder);
+          if (this.value) {
+            try {
+              let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+              file.initWithPath(this.value);
+              filePicker.displayDirectory = this.type == "file" ? file.parent : file;
+              if (this.type == "file") {
+                filePicker.defaultString = file.leafName;
+              }
+            } catch (e) {}
+          }
+          if (filePicker.show() != Ci.nsIFilePicker.returnCancel) {
+            this.value = filePicker.file.path;
+            this.inputChanged();
+          }
+        ]]>
+        </body>
+      </method>
+
+      <method name="valueFromPreference">
+        <body>
+        <![CDATA[
+          this.value = Preferences.get(this.pref, "");
+        ]]>
+        </body>
+      </method>
+
+      <method name="valueToPreference">
+        <body>
+        <![CDATA[
+          Preferences.set(this.pref, this.value);
+        ]]>
+        </body>
+      </method>
+
+      <field name="_value"></field>
+
+      <property name="value">
+        <getter>
+        <![CDATA[
+          return this._value;
+        ]]>
+        </getter>
+        <setter>
+        <![CDATA[
+          this._value = val;
+          let label = "";
+          if (val) {
+            try {
+              let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+              file.initWithPath(val);
+              label = this.hasAttribute("fullpath") ? file.path : file.leafName;
+            } catch (e) {}
+          }
+          this.input.tooltipText = val;
+          return this.input.value = label;
+       ]]>
+        </setter>
+      </property>
+    </implementation>
+  </binding>
+
+  <binding id="setting-multi" extends="chrome://mozapps/content/extensions/setting.xml#setting-base">
+    <content>
+      <xul:vbox>
+        <xul:hbox class="preferences-alignment">
+          <xul:label class="preferences-title" flex="1" xbl:inherits="xbl:text=title"/>
+        </xul:hbox>
+        <xul:description class="preferences-description" flex="1" xbl:inherits="xbl:text=desc"/>
+      </xul:vbox>
+      <xul:hbox class="preferences-alignment">
+        <children includes="radiogroup|menulist"/>
+      </xul:hbox>
+    </content>
+
+    <implementation>
+      <constructor>
+      <![CDATA[
+        this.control.addEventListener("command", this.inputChanged.bind(this), false);
+      ]]>
+      </constructor>
+
+      <method name="valueFromPreference">
+        <body>
+        <![CDATA[
+          let val = Preferences.get(this.pref, "").toString();
+
+          if ("itemCount" in this.control) {
+            for (let i = 0; i < this.control.itemCount; i++) {
+              if (this.control.getItemAtIndex(i).value == val) {
+                this.control.selectedIndex = i;
+                break;
+              }
+            }
+          } else {
+            this.control.setAttribute("value", val);
+          }
+        ]]>
+        </body>
+      </method>
+
+      <method name="valueToPreference">
+        <body>
+        <![CDATA[
+          // We might not have a pref already set, so we guess the type from the value attribute
+          let val = this.control.selectedItem.value;
+          if (val == "true" || val == "false") {
+            val = val == "true";
+          } else if (/^-?\d+$/.test(val)) {
+            val = parseInt(val, 10);
+          }
+          Preferences.set(this.pref, val);
+        ]]>
+        </body>
+      </method>
+
+      <field name="control">this.getElementsByTagName(this.getAttribute("type") == "radio" ? "radiogroup" : "menulist")[0];</field>
+    </implementation>
+  </binding>
+</bindings>
diff --git a/toolkit/mozapps/webextensions/content/update.js b/toolkit/mozapps/webextensions/content/update.js
new file mode 100644
index 000000000..80d0fa688
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/update.js
@@ -0,0 +1,663 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// This UI is only opened from the Extension Manager when the app is upgraded.
+
+"use strict";
+
+const PREF_UPDATE_EXTENSIONS_ENABLED            = "extensions.update.enabled";
+const PREF_XPINSTALL_ENABLED                    = "xpinstall.enabled";
+
+// timeout (in milliseconds) to wait for response to the metadata ping
+const METADATA_TIMEOUT    = 30000;
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AddonManager", "resource://gre/modules/AddonManager.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AddonManagerPrivate", "resource://gre/modules/AddonManager.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Services", "resource://gre/modules/Services.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AddonRepository", "resource://gre/modules/addons/AddonRepository.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Task", "resource://gre/modules/Task.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Promise", "resource://gre/modules/Promise.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Log", "resource://gre/modules/Log.jsm");
+var logger = null;
+
+var gUpdateWizard = {
+  // When synchronizing app compatibility info this contains all installed
+  // add-ons. When checking for compatible versions this contains only
+  // incompatible add-ons.
+  addons: [],
+  // Contains a Set of IDs for add-on that were disabled by the application update.
+  affectedAddonIDs: null,
+  // The add-ons that we found updates available for
+  addonsToUpdate: [],
+  shouldSuggestAutoChecking: false,
+  shouldAutoCheck: false,
+  xpinstallEnabled: true,
+  xpinstallLocked: false,
+  // cached AddonInstall entries for add-ons we might want to update,
+  // keyed by add-on ID
+  addonInstalls: new Map(),
+  shuttingDown: false,
+  // Count the add-ons disabled by this update, enabled/disabled by
+  // metadata checks, and upgraded.
+  disabled: 0,
+  metadataEnabled: 0,
+  metadataDisabled: 0,
+  upgraded: 0,
+  upgradeFailed: 0,
+  upgradeDeclined: 0,
+
+  init: function()
+  {
+    logger = Log.repository.getLogger("addons.update-dialog");
+    // XXX could we pass the addons themselves rather than the IDs?
+    this.affectedAddonIDs = new Set(window.arguments[0]);
+
+    try {
+      this.shouldSuggestAutoChecking =
+        !Services.prefs.getBoolPref(PREF_UPDATE_EXTENSIONS_ENABLED);
+    }
+    catch (e) {
+    }
+
+    try {
+      this.xpinstallEnabled = Services.prefs.getBoolPref(PREF_XPINSTALL_ENABLED);
+      this.xpinstallLocked = Services.prefs.prefIsLocked(PREF_XPINSTALL_ENABLED);
+    }
+    catch (e) {
+    }
+
+    if (Services.io.offline)
+      document.documentElement.currentPage = document.getElementById("offline");
+    else
+      document.documentElement.currentPage = document.getElementById("versioninfo");
+  },
+
+  onWizardFinish: function gUpdateWizard_onWizardFinish ()
+  {
+    if (this.shouldSuggestAutoChecking)
+      Services.prefs.setBoolPref(PREF_UPDATE_EXTENSIONS_ENABLED, this.shouldAutoCheck);
+  },
+
+  _setUpButton: function(aButtonID, aButtonKey, aDisabled)
+  {
+    var strings = document.getElementById("updateStrings");
+    var button = document.documentElement.getButton(aButtonID);
+    if (aButtonKey) {
+      button.label = strings.getString(aButtonKey);
+      try {
+        button.setAttribute("accesskey", strings.getString(aButtonKey + "Accesskey"));
+      }
+      catch (e) {
+      }
+    }
+    button.disabled = aDisabled;
+  },
+
+  setButtonLabels: function(aBackButton, aBackButtonIsDisabled,
+                             aNextButton, aNextButtonIsDisabled,
+                             aCancelButton, aCancelButtonIsDisabled)
+  {
+    this._setUpButton("back", aBackButton, aBackButtonIsDisabled);
+    this._setUpButton("next", aNextButton, aNextButtonIsDisabled);
+    this._setUpButton("cancel", aCancelButton, aCancelButtonIsDisabled);
+  },
+
+  // Update Errors
+  errorItems: [],
+
+  checkForErrors: function(aElementIDToShow)
+  {
+    if (this.errorItems.length > 0)
+      document.getElementById(aElementIDToShow).hidden = false;
+  },
+
+  onWizardClose: function(aEvent)
+  {
+    return this.onWizardCancel();
+  },
+
+  onWizardCancel: function()
+  {
+    gUpdateWizard.shuttingDown = true;
+    // Allow add-ons to continue downloading and installing
+    // in the background, though some may require a later restart
+    // Pages that are waiting for user input go into the background
+    // on cancel
+    if (gMismatchPage.waiting) {
+      logger.info("Dialog closed in mismatch page");
+      if (gUpdateWizard.addonInstalls.size > 0) {
+        gInstallingPage.startInstalls(
+          Array.from(gUpdateWizard.addonInstalls.values()));
+      }
+      return true;
+    }
+
+    // Pages that do asynchronous things will just keep running and check
+    // gUpdateWizard.shuttingDown to trigger background behaviour
+    if (!gInstallingPage.installing) {
+      logger.info("Dialog closed while waiting for updated compatibility information");
+    }
+    else {
+      logger.info("Dialog closed while downloading and installing updates");
+    }
+    return true;
+  }
+};
+
+var gOfflinePage = {
+  onPageAdvanced: function()
+  {
+    Services.io.offline = false;
+    return true;
+  },
+
+  toggleOffline: function()
+  {
+    var nextbtn = document.documentElement.getButton("next");
+    nextbtn.disabled = !nextbtn.disabled;
+  }
+}
+
+// Addon listener to count addons enabled/disabled by metadata checks
+var listener = {
+  onDisabled: function(aAddon) {
+    gUpdateWizard.affectedAddonIDs.add(aAddon.id);
+    gUpdateWizard.metadataDisabled++;
+  },
+  onEnabled: function(aAddon) {
+    gUpdateWizard.affectedAddonIDs.delete(aAddon.id);
+    gUpdateWizard.metadataEnabled++;
+  }
+};
+
+var gVersionInfoPage = {
+  _completeCount: 0,
+  _totalCount: 0,
+  _versionInfoDone: false,
+  onPageShow: Task.async(function*() {
+    gUpdateWizard.setButtonLabels(null, true,
+                                  "nextButtonText", true,
+                                  "cancelButtonText", false);
+
+    gUpdateWizard.disabled = gUpdateWizard.affectedAddonIDs.size;
+
+    // Ensure compatibility overrides are up to date before checking for
+    // individual addon updates.
+    AddonManager.addAddonListener(listener);
+    if (AddonRepository.isMetadataStale()) {
+      // Do the metadata ping, listening for any newly enabled/disabled add-ons.
+      yield AddonRepository.repopulateCache(METADATA_TIMEOUT);
+      if (gUpdateWizard.shuttingDown) {
+        logger.debug("repopulateCache completed after dialog closed");
+      }
+    }
+    // Fetch the add-ons that are still affected by this update,
+    // excluding the hotfix add-on.
+    let idlist = Array.from(gUpdateWizard.affectedAddonIDs).filter(
+      a => a.id != AddonManager.hotfixID);
+    if (idlist.length < 1) {
+      gVersionInfoPage.onAllUpdatesFinished();
+      return;
+    }
+
+    logger.debug("Fetching affected addons " + idlist.toSource());
+    let fetchedAddons = yield new Promise((resolve, reject) =>
+      AddonManager.getAddonsByIDs(idlist, resolve));
+    // We shouldn't get nulls here, but let's be paranoid...
+    gUpdateWizard.addons = fetchedAddons.filter(a => a);
+    if (gUpdateWizard.addons.length < 1) {
+      gVersionInfoPage.onAllUpdatesFinished();
+      return;
+    }
+
+    gVersionInfoPage._totalCount = gUpdateWizard.addons.length;
+
+    for (let addon of gUpdateWizard.addons) {
+      logger.debug("VersionInfo Finding updates for ${id}", addon);
+      addon.findUpdates(gVersionInfoPage, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
+    }
+  }),
+
+  onAllUpdatesFinished: function() {
+    AddonManager.removeAddonListener(listener);
+    AddonManagerPrivate.recordSimpleMeasure("appUpdate_disabled",
+        gUpdateWizard.disabled);
+    AddonManagerPrivate.recordSimpleMeasure("appUpdate_metadata_enabled",
+        gUpdateWizard.metadataEnabled);
+    AddonManagerPrivate.recordSimpleMeasure("appUpdate_metadata_disabled",
+        gUpdateWizard.metadataDisabled);
+    // Record 0 for these here in case we exit early; values will be replaced
+    // later if we actually upgrade any.
+    AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgraded", 0);
+    AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgradeFailed", 0);
+    AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgradeDeclined", 0);
+    // Filter out any add-ons that are now enabled.
+    let addonList = gUpdateWizard.addons.map(a => a.id + ":" + a.appDisabled);
+    logger.debug("VersionInfo updates finished: found " + addonList.toSource());
+    let filteredAddons = [];
+    for (let a of gUpdateWizard.addons) {
+      if (a.appDisabled) {
+        logger.debug("Continuing with add-on " + a.id);
+        filteredAddons.push(a);
+      }
+      else if (gUpdateWizard.addonInstalls.has(a.id)) {
+        gUpdateWizard.addonInstalls.get(a.id).cancel();
+        gUpdateWizard.addonInstalls.delete(a.id);
+      }
+    }
+    gUpdateWizard.addons = filteredAddons;
+
+    if (gUpdateWizard.shuttingDown) {
+      // jump directly to updating auto-update add-ons in the background
+      if (gUpdateWizard.addonInstalls.size > 0) {
+        let installs = Array.from(gUpdateWizard.addonInstalls.values());
+        gInstallingPage.startInstalls(installs);
+      }
+      return;
+    }
+
+    if (filteredAddons.length > 0) {
+      if (!gUpdateWizard.xpinstallEnabled && gUpdateWizard.xpinstallLocked) {
+        document.documentElement.currentPage = document.getElementById("adminDisabled");
+        return;
+      }
+      document.documentElement.currentPage = document.getElementById("mismatch");
+    }
+    else {
+      logger.info("VersionInfo: No updates require further action");
+      // VersionInfo compatibility updates resolved all compatibility problems,
+      // close this window and continue starting the application...
+      // XXX Bug 314754 - We need to use setTimeout to close the window due to
+      // the EM using xmlHttpRequest when checking for updates.
+      setTimeout(close, 0);
+    }
+  },
+
+  // UpdateListener
+  onUpdateFinished: function(aAddon, status) {
+    ++this._completeCount;
+
+    if (status != AddonManager.UPDATE_STATUS_NO_ERROR) {
+      logger.debug("VersionInfo update " + this._completeCount + " of " + this._totalCount +
+           " failed for " + aAddon.id + ": " + status);
+      gUpdateWizard.errorItems.push(aAddon);
+    }
+    else {
+      logger.debug("VersionInfo update " + this._completeCount + " of " + this._totalCount +
+           " finished for " + aAddon.id);
+    }
+
+    // If we're not in the background, just make a list of add-ons that have
+    // updates available
+    if (!gUpdateWizard.shuttingDown) {
+      // If we're still in the update check window and the add-on is now active
+      // then it won't have been disabled by startup
+      if (aAddon.active) {
+        AddonManagerPrivate.removeStartupChange(AddonManager.STARTUP_CHANGE_DISABLED, aAddon.id);
+        gUpdateWizard.metadataEnabled++;
+      }
+
+      // Update the status text and progress bar
+      var updateStrings = document.getElementById("updateStrings");
+      var statusElt = document.getElementById("versioninfo.status");
+      var statusString = updateStrings.getFormattedString("statusPrefix", [aAddon.name]);
+      statusElt.setAttribute("value", statusString);
+
+      // Update the status text and progress bar
+      var progress = document.getElementById("versioninfo.progress");
+      progress.mode = "normal";
+      progress.value = Math.ceil((this._completeCount / this._totalCount) * 100);
+    }
+
+    if (this._completeCount == this._totalCount)
+      this.onAllUpdatesFinished();
+  },
+
+  onUpdateAvailable: function(aAddon, aInstall) {
+    logger.debug("VersionInfo got an install for " + aAddon.id + ": " + aAddon.version);
+    gUpdateWizard.addonInstalls.set(aAddon.id, aInstall);
+  },
+};
+
+var gMismatchPage = {
+  waiting: false,
+
+  onPageShow: function()
+  {
+    gMismatchPage.waiting = true;
+    gUpdateWizard.setButtonLabels(null, true,
+                                  "mismatchCheckNow", false,
+                                  "mismatchDontCheck", false);
+    document.documentElement.getButton("next").focus();
+
+    var incompatible = document.getElementById("mismatch.incompatible");
+    for (let addon of gUpdateWizard.addons) {
+      var listitem = document.createElement("listitem");
+      listitem.setAttribute("label", addon.name + " " + addon.version);
+      incompatible.appendChild(listitem);
+    }
+  }
+};
+
+var gUpdatePage = {
+  _totalCount: 0,
+  _completeCount: 0,
+  onPageShow: function()
+  {
+    gMismatchPage.waiting = false;
+    gUpdateWizard.setButtonLabels(null, true,
+                                  "nextButtonText", true,
+                                  "cancelButtonText", false);
+    document.documentElement.getButton("next").focus();
+
+    gUpdateWizard.errorItems = [];
+
+    this._totalCount = gUpdateWizard.addons.length;
+    for (let addon of gUpdateWizard.addons) {
+      logger.debug("UpdatePage requesting update for " + addon.id);
+      // Redundant call to find updates again here when we already got them
+      // in the VersionInfo page: https://bugzilla.mozilla.org/show_bug.cgi?id=960597
+      addon.findUpdates(this, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
+    }
+  },
+
+  onAllUpdatesFinished: function() {
+    if (gUpdateWizard.shuttingDown)
+      return;
+
+    var nextPage = document.getElementById("noupdates");
+    if (gUpdateWizard.addonsToUpdate.length > 0)
+      nextPage = document.getElementById("found");
+    document.documentElement.currentPage = nextPage;
+  },
+
+  // UpdateListener
+  onUpdateAvailable: function(aAddon, aInstall) {
+    logger.debug("UpdatePage got an update for " + aAddon.id + ": " + aAddon.version);
+    gUpdateWizard.addonsToUpdate.push(aInstall);
+  },
+
+  onUpdateFinished: function(aAddon, status) {
+    if (status != AddonManager.UPDATE_STATUS_NO_ERROR)
+      gUpdateWizard.errorItems.push(aAddon);
+
+    ++this._completeCount;
+
+    if (!gUpdateWizard.shuttingDown) {
+      // Update the status text and progress bar
+      var updateStrings = document.getElementById("updateStrings");
+      var statusElt = document.getElementById("checking.status");
+      var statusString = updateStrings.getFormattedString("statusPrefix", [aAddon.name]);
+      statusElt.setAttribute("value", statusString);
+
+      var progress = document.getElementById("checking.progress");
+      progress.value = Math.ceil((this._completeCount / this._totalCount) * 100);
+    }
+
+    if (this._completeCount == this._totalCount)
+      this.onAllUpdatesFinished()
+  },
+};
+
+var gFoundPage = {
+  onPageShow: function()
+  {
+    gUpdateWizard.setButtonLabels(null, true,
+                                  "installButtonText", false,
+                                  null, false);
+
+    var foundUpdates = document.getElementById("found.updates");
+    var itemCount = gUpdateWizard.addonsToUpdate.length;
+    for (let install of gUpdateWizard.addonsToUpdate) {
+      let listItem = foundUpdates.appendItem(install.name + " " + install.version);
+      listItem.setAttribute("type", "checkbox");
+      listItem.setAttribute("checked", "true");
+      listItem.install = install;
+    }
+
+    if (!gUpdateWizard.xpinstallEnabled) {
+      document.getElementById("xpinstallDisabledAlert").hidden = false;
+      document.getElementById("enableXPInstall").focus();
+      document.documentElement.getButton("next").disabled = true;
+    }
+    else {
+      document.documentElement.getButton("next").focus();
+      document.documentElement.getButton("next").disabled = false;
+    }
+  },
+
+  toggleXPInstallEnable: function(aEvent)
+  {
+    var enabled = aEvent.target.checked;
+    gUpdateWizard.xpinstallEnabled = enabled;
+    var pref = Components.classes["@mozilla.org/preferences-service;1"]
+                         .getService(Components.interfaces.nsIPrefBranch);
+    pref.setBoolPref(PREF_XPINSTALL_ENABLED, enabled);
+    this.updateNextButton();
+  },
+
+  updateNextButton: function()
+  {
+    if (!gUpdateWizard.xpinstallEnabled) {
+      document.documentElement.getButton("next").disabled = true;
+      return;
+    }
+
+    var oneChecked = false;
+    var foundUpdates = document.getElementById("found.updates");
+    var updates = foundUpdates.getElementsByTagName("listitem");
+    for (let update of updates) {
+      if (!update.checked)
+        continue;
+      oneChecked = true;
+      break;
+    }
+
+    gUpdateWizard.setButtonLabels(null, true,
+                                  "installButtonText", true,
+                                  null, false);
+    document.getElementById("found").setAttribute("next", "installing");
+    document.documentElement.getButton("next").disabled = !oneChecked;
+  }
+};
+
+var gInstallingPage = {
+  _installs         : [],
+  _errors           : [],
+  _strings          : null,
+  _currentInstall   : -1,
+  _installing       : false,
+
+  // Initialize fields we need for installing and tracking progress,
+  // and start iterating through the installations
+  startInstalls: function(aInstallList) {
+    if (!gUpdateWizard.xpinstallEnabled) {
+      return;
+    }
+
+    let installs = Array.from(aInstallList).map(a => a.existingAddon.id);
+    logger.debug("Start installs for " + installs.toSource());
+    this._errors = [];
+    this._installs = aInstallList;
+    this._installing = true;
+    this.startNextInstall();
+  },
+
+  onPageShow: function()
+  {
+    gUpdateWizard.setButtonLabels(null, true,
+                                  "nextButtonText", true,
+                                  null, true);
+
+    var foundUpdates = document.getElementById("found.updates");
+    var updates = foundUpdates.getElementsByTagName("listitem");
+    let toInstall = [];
+    for (let update of updates) {
+      if (!update.checked) {
+        logger.info("User chose to cancel update of " + update.label);
+        gUpdateWizard.upgradeDeclined++;
+        update.install.cancel();
+        continue;
+      }
+      toInstall.push(update.install);
+    }
+    this._strings = document.getElementById("updateStrings");
+
+    this.startInstalls(toInstall);
+  },
+
+  startNextInstall: function() {
+    if (this._currentInstall >= 0) {
+      this._installs[this._currentInstall].removeListener(this);
+    }
+
+    this._currentInstall++;
+
+    if (this._installs.length == this._currentInstall) {
+      Services.obs.notifyObservers(null, "TEST:all-updates-done", null);
+      AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgraded",
+          gUpdateWizard.upgraded);
+      AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgradeFailed",
+          gUpdateWizard.upgradeFailed);
+      AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgradeDeclined",
+          gUpdateWizard.upgradeDeclined);
+      this._installing = false;
+      if (gUpdateWizard.shuttingDown) {
+        return;
+      }
+      var nextPage = this._errors.length > 0 ? "installerrors" : "finished";
+      document.getElementById("installing").setAttribute("next", nextPage);
+      document.documentElement.advance();
+      return;
+    }
+
+    let install = this._installs[this._currentInstall];
+
+    if (gUpdateWizard.shuttingDown && !AddonManager.shouldAutoUpdate(install.existingAddon)) {
+      logger.debug("Don't update " + install.existingAddon.id + " in background");
+      gUpdateWizard.upgradeDeclined++;
+      install.cancel();
+      this.startNextInstall();
+      return;
+    }
+    install.addListener(this);
+    install.install();
+  },
+
+  // InstallListener
+  onDownloadStarted: function(aInstall) {
+    if (gUpdateWizard.shuttingDown) {
+      return;
+    }
+    var strings = document.getElementById("updateStrings");
+    var label = strings.getFormattedString("downloadingPrefix", [aInstall.name]);
+    var actionItem = document.getElementById("actionItem");
+    actionItem.value = label;
+  },
+
+  onDownloadProgress: function(aInstall) {
+    if (gUpdateWizard.shuttingDown) {
+      return;
+    }
+    var downloadProgress = document.getElementById("downloadProgress");
+    downloadProgress.value = Math.ceil(100 * aInstall.progress / aInstall.maxProgress);
+  },
+
+  onDownloadEnded: function(aInstall) {
+  },
+
+  onDownloadFailed: function(aInstall) {
+    this._errors.push(aInstall);
+
+    gUpdateWizard.upgradeFailed++;
+    this.startNextInstall();
+  },
+
+  onInstallStarted: function(aInstall) {
+    if (gUpdateWizard.shuttingDown) {
+      return;
+    }
+    var strings = document.getElementById("updateStrings");
+    var label = strings.getFormattedString("installingPrefix", [aInstall.name]);
+    var actionItem = document.getElementById("actionItem");
+    actionItem.value = label;
+  },
+
+  onInstallEnded: function(aInstall, aAddon) {
+    if (!gUpdateWizard.shuttingDown) {
+      // Remember that this add-on was updated during startup
+      AddonManagerPrivate.addStartupChange(AddonManager.STARTUP_CHANGE_CHANGED,
+                                           aAddon.id);
+    }
+
+    gUpdateWizard.upgraded++;
+    this.startNextInstall();
+  },
+
+  onInstallFailed: function(aInstall) {
+    this._errors.push(aInstall);
+
+    gUpdateWizard.upgradeFailed++;
+    this.startNextInstall();
+  }
+};
+
+var gInstallErrorsPage = {
+  onPageShow: function()
+  {
+    gUpdateWizard.setButtonLabels(null, true, null, true, null, true);
+    document.documentElement.getButton("finish").focus();
+  },
+};
+
+// Displayed when there are incompatible add-ons and the xpinstall.enabled
+// pref is false and locked.
+var gAdminDisabledPage = {
+  onPageShow: function()
+  {
+    gUpdateWizard.setButtonLabels(null, true, null, true,
+                                  "cancelButtonText", true);
+    document.documentElement.getButton("finish").focus();
+  }
+};
+
+// Displayed when selected add-on updates have been installed without error.
+// There can still be add-ons that are not compatible and don't have an update.
+var gFinishedPage = {
+  onPageShow: function()
+  {
+    gUpdateWizard.setButtonLabels(null, true, null, true, null, true);
+    document.documentElement.getButton("finish").focus();
+
+    if (gUpdateWizard.shouldSuggestAutoChecking) {
+      document.getElementById("finishedCheckDisabled").hidden = false;
+      gUpdateWizard.shouldAutoCheck = true;
+    }
+    else
+      document.getElementById("finishedCheckEnabled").hidden = false;
+
+    document.documentElement.getButton("finish").focus();
+  }
+};
+
+// Displayed when there are incompatible add-ons and there are no available
+// updates.
+var gNoUpdatesPage = {
+  onPageShow: function(aEvent)
+  {
+    gUpdateWizard.setButtonLabels(null, true, null, true, null, true);
+    if (gUpdateWizard.shouldSuggestAutoChecking) {
+      document.getElementById("noupdatesCheckDisabled").hidden = false;
+      gUpdateWizard.shouldAutoCheck = true;
+    }
+    else
+      document.getElementById("noupdatesCheckEnabled").hidden = false;
+
+    gUpdateWizard.checkForErrors("updateCheckErrorNotFound");
+    document.documentElement.getButton("finish").focus();
+  }
+};
diff --git a/toolkit/mozapps/webextensions/content/update.xul b/toolkit/mozapps/webextensions/content/update.xul
new file mode 100644
index 000000000..745983814
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/update.xul
@@ -0,0 +1,194 @@
+<?xml version="1.0"?>
+
+# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?> 
+<?xml-stylesheet href="chrome://mozapps/skin/extensions/update.css" type="text/css"?> 
+
+<!DOCTYPE wizard [
+<!ENTITY % updateDTD SYSTEM "chrome://mozapps/locale/extensions/update.dtd">
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
+%updateDTD;
+%brandDTD;
+]>
+
+<wizard id="updateWizard"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        title="&updateWizard.title;"
+        windowtype="Addons:Compatibility"
+        branded="true"
+        onload="gUpdateWizard.init();"
+        onwizardfinish="gUpdateWizard.onWizardFinish();"
+        onwizardcancel="return gUpdateWizard.onWizardCancel();"
+        onclose="return gUpdateWizard.onWizardClose(event);"
+        buttons="accept,cancel">
+
+  <script type="application/javascript" src="chrome://mozapps/content/extensions/update.js"/>
+  
+  <stringbundleset id="updateSet">
+    <stringbundle id="brandStrings" src="chrome://branding/locale/brand.properties"/>
+    <stringbundle id="updateStrings" src="chrome://mozapps/locale/extensions/update.properties"/>
+  </stringbundleset>
+  
+  <wizardpage id="dummy" pageid="dummy"/>
+  
+  <wizardpage id="offline" pageid="offline" next="versioninfo"
+              label="&offline.title;"
+              onpageadvanced="return gOfflinePage.onPageAdvanced();">
+    <description>&offline.description;</description>
+    <checkbox id="toggleOffline"
+              checked="true"
+              label="&offline.toggleOffline.label;"
+              accesskey="&offline.toggleOffline.accesskey;"
+              oncommand="gOfflinePage.toggleOffline();"/>
+  </wizardpage>
+  
+  <wizardpage id="versioninfo" pageid="versioninfo" next="mismatch"
+              label="&versioninfo.wizard.title;"
+              onpageshow="gVersionInfoPage.onPageShow();">
+    <label>&versioninfo.top.label;</label>
+    <separator class="thin"/>
+    <progressmeter id="versioninfo.progress" mode="undetermined"/>
+    <hbox align="center">
+      <image id="versioninfo.throbber" class="throbber"/>
+      <label flex="1" id="versioninfo.status" crop="right">&versioninfo.waiting;</label>
+    </hbox>
+    <separator/>
+  </wizardpage>
+
+  <wizardpage id="mismatch" pageid="mismatch" next="checking"
+              label="&mismatch.win.title;"
+              onpageshow="gMismatchPage.onPageShow();">
+    <label>&mismatch.top.label;</label>
+    <separator class="thin"/>
+    <listbox id="mismatch.incompatible" flex="1"/>
+    <separator class="thin"/>
+    <label>&mismatch.bottom.label;</label>
+  </wizardpage>
+  
+  <wizardpage id="checking" pageid="checking" next="noupdates"
+              label="&checking.wizard.title;"
+              onpageshow="gUpdatePage.onPageShow();">
+    <label>&checking.top.label;</label>
+    <separator class="thin"/>
+    <progressmeter id="checking.progress"/>
+    <hbox align="center">
+      <image id="checking.throbber" class="throbber"/>
+      <label id="checking.status" flex="1" crop="right">&checking.status;</label>
+    </hbox>
+  </wizardpage>
+    
+  <wizardpage id="noupdates" pageid="noupdates"
+              label="&noupdates.wizard.title;"
+              onpageshow="gNoUpdatesPage.onPageShow();">
+    <description>&noupdates.intro.desc;</description>
+    <separator class="thin"/>
+    <hbox id="updateCheckErrorNotFound" class="alertBox" hidden="true" align="top">
+      <description flex="1">&noupdates.error.desc;</description>
+    </hbox>
+    <separator class="thin"/>
+    <description id="noupdatesCheckEnabled" hidden="true">
+      &noupdates.checkEnabled.desc;
+    </description>
+    <vbox id="noupdatesCheckDisabled" hidden="true">
+      <description>&finished.checkDisabled.desc;</description>
+      <checkbox label="&enableChecking.label;" checked="true"
+                oncommand="gUpdateWizard.shouldAutoCheck = this.checked;"/>
+    </vbox>
+    <separator flex="1"/>
+#ifndef XP_MACOSX
+    <label>&clickFinish.label;</label>
+#else
+    <label>&clickFinish.labelMac;</label>
+#endif
+    <separator class="thin"/>
+  </wizardpage>
+
+  <wizardpage id="found" pageid="found" next="installing"
+              label="&found.wizard.title;"
+              onpageshow="gFoundPage.onPageShow();">
+    <label>&found.top.label;</label>
+    <separator class="thin"/>
+    <listbox id="found.updates" flex="1" seltype="multiple"
+             onclick="gFoundPage.updateNextButton();"/>
+    <separator class="thin"/>
+    <vbox align="left" id="xpinstallDisabledAlert" hidden="true">
+      <description>&found.disabledXPinstall.label;</description>
+      <checkbox label="&found.enableXPInstall.label;"
+                id="enableXPInstall"
+                accesskey="&found.enableXPInstall.accesskey;"
+                oncommand="gFoundPage.toggleXPInstallEnable(event);"/>
+    </vbox>
+  </wizardpage>
+
+  <wizardpage id="installing" pageid="installing" next="finished"
+              label="&installing.wizard.title;"
+              onpageshow="gInstallingPage.onPageShow();">
+    <label>&installing.top.label;</label>
+    <progressmeter id="downloadProgress"/>
+    <hbox align="center">
+      <image id="installing.throbber" class="throbber"/>
+      <label id="actionItem" flex="1" crop="right"/>
+    </hbox>
+    <separator/>
+  </wizardpage>
+  
+  <wizardpage id="installerrors" pageid="installerrors"
+              label="&installerrors.wizard.title;"
+              onpageshow="gInstallErrorsPage.onPageShow();">
+    <hbox align="top" class="alertBox">
+      <description flex="1">&installerrors.intro.label;</description>
+    </hbox>
+    <separator flex="1"/>
+#ifndef XP_MACOSX
+    <label>&clickFinish.label;</label>
+#else
+    <label>&clickFinish.labelMac;</label>
+#endif
+    <separator class="thin"/>
+  </wizardpage>
+  
+  <wizardpage id="adminDisabled" pageid="adminDisabled"
+              label="&adminDisabled.wizard.title;"
+              onpageshow="gAdminDisabledPage.onPageShow();">
+    <separator/>
+    <hbox class="alertBox" align="top">
+      <description flex="1">&adminDisabled.warning.label;</description>
+    </hbox>
+    <separator flex="1"/>
+#ifndef XP_MACOSX
+    <label>&clickFinish.label;</label>
+#else
+    <label>&clickFinish.labelMac;</label>
+#endif
+    <separator class="thin"/>
+  </wizardpage>
+
+  <wizardpage id="finished" pageid="finished"
+              label="&finished.wizard.title;"
+              onpageshow="gFinishedPage.onPageShow();">
+
+    <label>&finished.top.label;</label>
+    <separator/>
+    <description id="finishedCheckEnabled" hidden="true">
+      &finished.checkEnabled.desc;
+    </description>
+    <vbox id="finishedCheckDisabled" hidden="true">
+      <description>&finished.checkDisabled.desc;</description>
+      <checkbox label="&enableChecking.label;" checked="true"
+                oncommand="gUpdateWizard.shouldAutoCheck = this.checked;"/>
+    </vbox>
+    <separator flex="1"/>
+#ifndef XP_MACOSX
+    <label>&clickFinish.label;</label>
+#else
+    <label>&clickFinish.labelMac;</label>
+#endif
+    <separator class="thin"/>
+  </wizardpage>
+  
+</wizard>
+
diff --git a/toolkit/mozapps/webextensions/content/updateinfo.xsl b/toolkit/mozapps/webextensions/content/updateinfo.xsl
new file mode 100644
index 000000000..5fcccd6d7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/updateinfo.xsl
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<xsl:stylesheet version="1.0" xmlns:xhtml="http://www.w3.org/1999/xhtml"
+                              xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+
+  <!-- Any elements not otherwise specified will be stripped but the contents
+       will be displayed. All attributes are stripped from copied elements. -->
+
+  <!-- Block these elements and their contents -->
+  <xsl:template match="xhtml:head|xhtml:script|xhtml:style">
+  </xsl:template>
+
+  <!-- Allowable styling elements -->
+  <xsl:template match="xhtml:b|xhtml:i|xhtml:em|xhtml:strong|xhtml:u|xhtml:q|xhtml:sub|xhtml:sup|xhtml:code">
+    <xsl:copy><xsl:apply-templates/></xsl:copy>
+  </xsl:template>
+
+  <!-- Allowable block formatting elements -->
+  <xsl:template match="xhtml:h1|xhtml:h2|xhtml:h3|xhtml:p|xhtml:div|xhtml:blockquote|xhtml:pre">
+    <xsl:copy><xsl:apply-templates/></xsl:copy>
+  </xsl:template>
+
+  <!-- Allowable list formatting elements -->
+  <xsl:template match="xhtml:ul|xhtml:ol|xhtml:li|xhtml:dl|xhtml:dt|xhtml:dd">
+    <xsl:copy><xsl:apply-templates/></xsl:copy>
+  </xsl:template>
+
+  <!-- These elements are copied and their contents dropped -->
+  <xsl:template match="xhtml:br|xhtml:hr">
+    <xsl:copy/>
+  </xsl:template>
+
+  <!-- The root document -->
+  <xsl:template match="/">
+    <xhtml:body><xsl:apply-templates/></xhtml:body>
+  </xsl:template>
+  
+</xsl:stylesheet>
diff --git a/toolkit/mozapps/webextensions/content/xpinstallConfirm.css b/toolkit/mozapps/webextensions/content/xpinstallConfirm.css
new file mode 100644
index 000000000..583facfec
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/xpinstallConfirm.css
@@ -0,0 +1,8 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+installitem {
+  -moz-binding: url("chrome://mozapps/content/xpinstall/xpinstallItem.xml#installitem");
+  display: -moz-box;
+}
diff --git a/toolkit/mozapps/webextensions/content/xpinstallConfirm.js b/toolkit/mozapps/webextensions/content/xpinstallConfirm.js
new file mode 100644
index 000000000..5660cdaaf
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/xpinstallConfirm.js
@@ -0,0 +1,196 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var XPInstallConfirm = {};
+
+XPInstallConfirm.init = function()
+{
+  Components.utils.import("resource://gre/modules/AddonManager.jsm");
+
+  var _installCountdown;
+  var _installCountdownInterval;
+  var _focused;
+  var _timeout;
+
+  // Default to cancelling the install when the window unloads
+  XPInstallConfirm._installOK = false;
+
+  var bundle = document.getElementById("xpinstallConfirmStrings");
+
+  let args = window.arguments[0].wrappedJSObject;
+
+  // If all installs have already been cancelled in some way then just close
+  // the window
+  if (args.installs.every(i => i.state != AddonManager.STATE_DOWNLOADED)) {
+    window.close();
+    return;
+  }
+
+  var _installCountdownLength = 5;
+  try {
+    var prefs = Components.classes["@mozilla.org/preferences-service;1"]
+                          .getService(Components.interfaces.nsIPrefBranch);
+    var delay_in_milliseconds = prefs.getIntPref("security.dialog_enable_delay");
+    _installCountdownLength = Math.round(delay_in_milliseconds / 500);
+  } catch (ex) { }
+
+  var itemList = document.getElementById("itemList");
+
+  let installMap = new WeakMap();
+  let installListener = {
+    onDownloadCancelled: function(install) {
+      itemList.removeChild(installMap.get(install));
+      if (--numItemsToInstall == 0)
+        window.close();
+    }
+  };
+
+  var numItemsToInstall = args.installs.length;
+  for (let install of args.installs) {
+    var installItem = document.createElement("installitem");
+    itemList.appendChild(installItem);
+
+    installItem.name = install.addon.name;
+    installItem.url = install.sourceURI.spec;
+    var icon = install.iconURL;
+    if (icon)
+      installItem.icon = icon;
+    var type = install.type;
+    if (type)
+      installItem.type = type;
+    if (install.certName) {
+      installItem.cert = bundle.getFormattedString("signed", [install.certName]);
+    }
+    else {
+      installItem.cert = bundle.getString("unverified");
+    }
+    installItem.signed = install.certName ? "true" : "false";
+
+    installMap.set(install, installItem);
+    install.addListener(installListener);
+  }
+
+  var introString = bundle.getString("itemWarnIntroSingle");
+  if (numItemsToInstall > 4)
+    introString = bundle.getFormattedString("itemWarnIntroMultiple", [numItemsToInstall]);
+  var textNode = document.createTextNode(introString);
+  var introNode = document.getElementById("itemWarningIntro");
+  while (introNode.hasChildNodes())
+    introNode.removeChild(introNode.firstChild);
+  introNode.appendChild(textNode);
+
+  var okButton = document.documentElement.getButton("accept");
+  okButton.focus();
+
+  function okButtonCountdown() {
+    _installCountdown -= 1;
+
+    if (_installCountdown < 1) {
+      okButton.label = bundle.getString("installButtonLabel");
+      okButton.disabled = false;
+      clearInterval(_installCountdownInterval);
+    }
+    else
+      okButton.label = bundle.getFormattedString("installButtonDisabledLabel", [_installCountdown]);
+  }
+
+  function myfocus() {
+    // Clear the timeout if it exists so only the last one will be used.
+    if (_timeout)
+      clearTimeout(_timeout);
+
+    // Use setTimeout since the last focus or blur event to fire is the one we
+    // want
+    _timeout = setTimeout(setWidgetsAfterFocus, 0);
+  }
+
+  function setWidgetsAfterFocus() {
+    if (_focused)
+      return;
+
+    _installCountdown = _installCountdownLength;
+    _installCountdownInterval = setInterval(okButtonCountdown, 500);
+    okButton.label = bundle.getFormattedString("installButtonDisabledLabel", [_installCountdown]);
+    _focused = true;
+  }
+
+  function myblur() {
+    // Clear the timeout if it exists so only the last one will be used.
+    if (_timeout)
+      clearTimeout(_timeout);
+
+    // Use setTimeout since the last focus or blur event to fire is the one we
+    // want
+    _timeout = setTimeout(setWidgetsAfterBlur, 0);
+  }
+
+  function setWidgetsAfterBlur() {
+    if (!_focused)
+      return;
+
+    // Set _installCountdown to the inital value set in setWidgetsAfterFocus
+    // plus 1 so when the window is focused there is immediate ui feedback.
+    _installCountdown = _installCountdownLength + 1;
+    okButton.label = bundle.getFormattedString("installButtonDisabledLabel", [_installCountdown]);
+    okButton.disabled = true;
+    clearInterval(_installCountdownInterval);
+    _focused = false;
+  }
+
+  function myUnload() {
+    if (_installCountdownLength > 0) {
+      document.removeEventListener("focus", myfocus, true);
+      document.removeEventListener("blur", myblur, true);
+    }
+    window.removeEventListener("unload", myUnload, false);
+
+    for (let install of args.installs)
+      install.removeListener(installListener);
+
+    // Now perform the desired action - either install the
+    // addons or cancel the installations
+    if (XPInstallConfirm._installOK) {
+      for (let install of args.installs)
+        install.install();
+    }
+    else {
+      for (let install of args.installs) {
+        if (install.state != AddonManager.STATE_CANCELLED)
+          install.cancel();
+      }
+    }
+  }
+
+  window.addEventListener("unload", myUnload, false);
+
+  if (_installCountdownLength > 0) {
+    document.addEventListener("focus", myfocus, true);
+    document.addEventListener("blur", myblur, true);
+
+    okButton.disabled = true;
+    setWidgetsAfterFocus();
+  }
+  else
+    okButton.label = bundle.getString("installButtonLabel");
+}
+
+XPInstallConfirm.onOK = function()
+{
+  Components.classes["@mozilla.org/base/telemetry;1"].
+    getService(Components.interfaces.nsITelemetry).
+    getHistogramById("SECURITY_UI").
+    add(Components.interfaces.nsISecurityUITelemetry.WARNING_CONFIRM_ADDON_INSTALL_CLICK_THROUGH);
+  // Perform the install or cancel after the window has unloaded
+  XPInstallConfirm._installOK = true;
+  return true;
+}
+
+XPInstallConfirm.onCancel = function()
+{
+  // Perform the install or cancel after the window has unloaded
+  XPInstallConfirm._installOK = false;
+  return true;
+}
diff --git a/toolkit/mozapps/webextensions/content/xpinstallConfirm.xul b/toolkit/mozapps/webextensions/content/xpinstallConfirm.xul
new file mode 100644
index 000000000..f1c29eb73
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/xpinstallConfirm.xul
@@ -0,0 +1,37 @@
+<?xml version="1.0"?>
+
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<?xml-stylesheet href="chrome://mozapps/content/xpinstall/xpinstallConfirm.css" type="text/css"?>
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://mozapps/skin/xpinstall/xpinstallConfirm.css" type="text/css"?>
+
+<!DOCTYPE dialog SYSTEM "chrome://mozapps/locale/xpinstall/xpinstallConfirm.dtd">
+
+<dialog xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        id="xpinstallConfirm" title="&dialog.title;" style="&dialog.style;" 
+        windowtype="Addons:Install"
+        onload="XPInstallConfirm.init()" 
+        ondialogaccept="return XPInstallConfirm.onOK();"
+        ondialogcancel="return XPInstallConfirm.onCancel();">
+
+  <script src="chrome://mozapps/content/xpinstall/xpinstallConfirm.js" type="application/javascript"/>
+
+  <stringbundle id="xpinstallConfirmStrings" 
+                src="chrome://mozapps/locale/xpinstall/xpinstallConfirm.properties"/>
+
+  <vbox flex="1" id="dialogContentBox">
+    <hbox id="xpinstallheader" align="start">
+      <image class="alert-icon"/>
+      <vbox flex="1">
+        <description class="warning">&warningPrimary.label;</description>
+        <description>&warningSecondary.label;</description>
+      </vbox>
+    </hbox>
+    <label id="itemWarningIntro"/>
+    <vbox id="itemList" class="listbox" flex="1" style="overflow: auto;"/>
+  </vbox>
+
+</dialog>
diff --git a/toolkit/mozapps/webextensions/content/xpinstallItem.xml b/toolkit/mozapps/webextensions/content/xpinstallItem.xml
new file mode 100644
index 000000000..5146af84f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/content/xpinstallItem.xml
@@ -0,0 +1,51 @@
+<?xml version="1.0"?>
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+
+<!DOCTYPE bindings SYSTEM "chrome://mozapps/locale/xpinstall/xpinstallConfirm.dtd">
+
+<bindings id="xpinstallItemBindings"
+          xmlns="http://www.mozilla.org/xbl"
+          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+          xmlns:xbl="http://www.mozilla.org/xbl">
+
+  <binding id="installitem">
+    <resources>
+      <stylesheet src="chrome://mozapps/skin/xpinstall/xpinstallConfirm.css"/>
+    </resources>
+    <content>
+      <xul:hbox flex="1">
+        <xul:vbox align="center" pack="center" class="xpinstallIconContainer">
+          <xul:image class="xpinstallItemIcon" xbl:inherits="src=icon"/>
+        </xul:vbox>
+        <xul:vbox flex="1" pack="center">
+          <xul:hbox class="xpinstallItemNameRow" align="center">
+            <xul:label class="xpinstallItemName" xbl:inherits="value=name" crop="right"/>
+            <xul:label class="xpinstallItemSigned" xbl:inherits="value=cert,signed"/>
+          </xul:hbox>
+          <xul:hbox class="xpinstallItemDetailsRow" align="center">
+            <xul:textbox class="xpinstallItemURL" xbl:inherits="value=url" flex="1" readonly="true" crop="right"/>
+          </xul:hbox>
+        </xul:vbox> 
+      </xul:hbox>
+    </content>
+    <implementation>
+      <property name="name"   onset="this.setAttribute('name', val); return val;"
+                              onget="return this.getAttribute('name');"/>
+      <property name="cert"   onset="this.setAttribute('cert', val); return val;"
+                              onget="return this.getAttribute('cert');"/>
+      <property name="signed" onset="this.setAttribute('signed', val); return val;"
+                              onget="return this.getAttribute('signed');"/>
+      <property name="url"    onset="this.setAttribute('url', val); return val;"
+                              onget="return this.getAttribute('url');"/>
+      <property name="icon"   onset="this.setAttribute('icon', val); return val;"
+                              onget="return this.getAttribute('icon');"/>
+      <property name="type"   onset="this.setAttribute('type', val); return val;"
+                              onget="return this.getAttribute('type');"/>
+    </implementation>
+  </binding>
+         
+</bindings>
+
diff --git a/toolkit/mozapps/webextensions/docs/SystemAddons.rst b/toolkit/mozapps/webextensions/docs/SystemAddons.rst
new file mode 100644
index 000000000..5f724e9ef
--- /dev/null
+++ b/toolkit/mozapps/webextensions/docs/SystemAddons.rst
@@ -0,0 +1,224 @@
+Firefox System Add-on Update Protocol
+=====================================
+This document describes the protocol that Firefox uses when retrieving updates
+for System Add-ons from the automatic update service (AUS, currently `Balrog`_),
+and the expected behavior of Firefox based on the updater service's response.
+
+.. _Balrog: https://wiki.mozilla.org/Balrog
+
+System Add-ons
+--------------
+System add-ons:
+
+* Are add-ons that ship with Firefox, are hidden from the UI, and cannot be
+  disabled
+* Can be updated by Firefox depending on the AUS response to Firefox's update
+  request
+* Are stored in two locations:
+
+  * The **default** set ships with Firefox and is stored in the application
+    directory.
+  * The **update** set is stored in the user’s profile directory. If an add-on
+    is both in the update and default set, the update version gets precedence.
+
+Update Request
+--------------
+To determine what updates to install, Firefox makes an HTTP **GET** request to
+AUS once a day via a URL of the form::
+
+  https://aus5.mozilla.org/update/3/SystemAddons/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml
+
+The path segments surrounded by ``%`` symbols are variable fields that Firefox
+fills in with information about itself and the environment it's running in:
+
+``VERSION``
+  Firefox version number
+``BUILD_ID``
+  Build ID
+``BUILD_TARGET``
+  Build target
+``LOCALE``
+  Build locale
+``CHANNEL``
+  Update channel
+``OS_VERSION``
+  OS Version
+``DISTRIBUTION``
+  Firefox Distribution
+``DISTRIBUTION_VERSION``
+  Firefox Distribution version
+
+Update Response
+---------------
+AUS should respond with an XML document that looks something like this:
+
+.. code-block:: xml
+
+  <?xml version="1.0"?>
+  <updates>
+    <addons>
+      <addon id="flyweb@mozilla.org" URL="https://ftp.mozilla.org/pub/system-addons/flyweb/flyweb@mozilla.org-1.0.xpi" hashFunction="sha512" hashValue="abcdef123" size="1234" version="1.0"/>
+      <addon id="pocket@mozilla.org" URL="https://ftp.mozilla.org/pub/system-addons/pocket/pocket@mozilla.org-1.0.xpi" hashFunction="sha512" hashValue="abcdef123" size="1234" version="1.0"/>
+    </addons>
+  </updates>
+
+* The root element is ``<updates>``, used for all updater responses.
+* The only child of ``<updates>`` is ``<addons>``, which represents a list of
+  system add-ons to update.
+* Within ``<addons>`` are several ``<addon>`` tags, each one corresponding to a
+  system add-on to update.
+
+``<addon>`` tags **must** have the following attributes:
+
+``id``
+  The extension ID
+``URL``
+  URL to a signed XPI of the specified add-on version to download
+``hashFunction``
+  Identifier of the hash function used to generate the hashValue attribute.
+``hashValue``
+  Hash of the XPI file linked from the URL attribute, calculated using the function specified in the hashValue attribute.
+``size``
+  Size (in bytes) of the XPI file linked from the URL attribute.
+``version``
+  Version number of the add-on
+
+Update Behavior
+---------------
+After receiving the update response, Firefox modifies the **update** add-ons
+according to the following algorithm:
+
+1. If the ``<addons>`` tag is empty (``<addons></addons>``) in the response,
+   **remove all system add-on updates**.
+2. If no add-ons were specified in the response (i.e. the ``<addons>`` tag
+   is not present), do nothing and finish.
+3. If the **update** add-on set is equal to the set of add-ons specified in the
+   update response, do nothing and finish.
+4. If the set of **default** add-ons is equal to the set of add-ons specified in
+   the update response, remove all the  **update** add-ons and finish.
+5. Download each add-on specified in the update response and store them in the
+   "downloaded add-on set". A failed download **must** abort the entire system
+   add-on update.
+6. Validate the downloaded add-ons. The following **must** be true for all
+   downloaded add-ons, or the update process is aborted:
+
+   a. The ID and version of the downloaded add-on must match the specified ID or
+      version in the update response.
+   b. The hash provided in the update response must match the downloaded add-on
+      file.
+   c. The downloaded add-on file size must match the size given in the update
+      response.
+   d. The add-on must be compatible with Firefox (i.e. it must not be for a
+      different application, such as Thunderbird).
+   e. The add-on must be packed (i.e. be an XPI file).
+   f. The add-on must be restartless.
+   g. The add-on must be signed by the system add-on root certificate.
+
+6. Once all downloaded add-ons are validated, install them into the profile
+   directory as part of the **update** set.
+
+Notes on the update process:
+
+* Add-ons are considered "equal" if they have the same ID and version number.
+
+Examples
+--------
+The follow section describes common situations that we have or expect to run
+into and how the protocol described above handles them.
+
+For simplicity, unless otherwise specified, all examples assume that there are
+two system add-ons in existence: **FlyWeb** and **Pocket**.
+
+Basic
+~~~~~
+A user has Firefox 45, which shipped with FlyWeb 1.0 and Pocket 1.0. We want to
+update users to FlyWeb 2.0. AUS sends out the following update response:
+
+.. code-block:: xml
+
+  <updates>
+    <addons>
+      <addon id="flyweb@mozilla.org" URL="https://ftp.mozilla.org/pub/system-addons/flyweb/flyweb@mozilla.org-2.0.xpi" hashFunction="sha512" hashValue="abcdef123" size="1234" version="2.0"/>
+      <addon id="pocket@mozilla.org" URL="https://ftp.mozilla.org/pub/system-addons/pocket/pocket@mozilla.org-1.0.xpi" hashFunction="sha512" hashValue="abcdef123" size="1234" version="1.0"/>
+    </addons>
+  </updates>
+
+Firefox will download FlyWeb 2.0 and Pocket 1.0 and store them in the profile directory.
+
+Missing Add-on
+~~~~~~~~~~~~~~
+A user has Firefox 45, which shipped with FlyWeb 1.0 and Pocket 1.0. We want to
+update users to FlyWeb 2.0, but accidentally forget to specify Pocket in the
+update response. AUS sends out the following:
+
+.. code-block:: xml
+
+  <updates>
+    <addons>
+      <addon id="flyweb@mozilla.org" URL="https://ftp.mozilla.org/pub/system-addons/flyweb/flyweb@mozilla.org-2.0.xpi" hashFunction="sha512" hashValue="abcdef123" size="1234" version="2.0"/>
+    </addons>
+  </updates>
+
+Firefox will download FlyWeb 2.0 and store it in the profile directory. Pocket
+1.0 from the **default** location will be used.
+
+Remove all system add-on updates
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+A response from AUS with an empty add-on set will *remove all system add-on
+updates*:
+
+.. code-block:: xml
+
+  <updates>
+    <addons></addons>
+  </updates>
+
+Rollout
+~~~~~~~
+A user has Firefox 45, which shipped with FlyWeb 1.0 and Pocket 1.0. We want to
+rollout FlyWeb 2.0 at a 10% sample rate. 10% of the time, AUS sends out:
+
+.. code-block:: xml
+
+  <updates>
+    <addons>
+      <addon id="flyweb@mozilla.org" URL="https://ftp.mozilla.org/pub/system-addons/flyweb/flyweb@mozilla.org-2.0.xpi" hashFunction="sha512" hashValue="abcdef123" size="1234" version="2.0"/>
+      <addon id="pocket@mozilla.org" URL="https://ftp.mozilla.org/pub/system-addons/pocket/pocket@mozilla.org-1.0.xpi" hashFunction="sha512" hashValue="abcdef123" size="1234" version="1.0"/>
+    </addons>
+  </updates>
+
+With this response, Firefox will download Pocket 1.0 and FlyWeb 2.0 and install
+them into the profile directory.
+
+The other 90% of the time, AUS sends out an empty response:
+
+.. code-block:: xml
+
+  <updates></updates>
+
+With the empty response, Firefox will not make any changes. This means users who
+haven’t seen the 10% update response will stay on FlyWeb 1.0, and users who have
+seen it will stay on FlyWeb 2.0.
+
+Once we’re happy with the rollout and want to switch to 100%, AUS will send the
+10% update response to 100% of users, upgrading everyone to FlyWeb 2.0.
+
+Rollback
+~~~~~~~~
+This example continues from the “Rollout” example. If, during the 10% rollout,
+we find a major issue with FlyWeb 2.0, we want to roll all users back to FlyWeb 1.0.
+AUS sends out the following:
+
+.. code-block:: xml
+
+  <updates>
+    <addons>
+      <addon id="flyweb@mozilla.org" URL="https://ftp.mozilla.org/pub/system-addons/flyweb/flyweb@mozilla.org-1.0.xpi" hashFunction="sha512" hashValue="abcdef123" size="1234" version="1.0"/>
+      <addon id="pocket@mozilla.org" URL="https://ftp.mozilla.org/pub/system-addons/pocket/pocket@mozilla.org-1.0.xpi" hashFunction="sha512" hashValue="abcdef123" size="1234" version="1.0"/>
+    </addons>
+  </updates>
+
+For users who have updated, Firefox will download FlyWeb 1.0 and Pocket 1.0 and
+install them into the profile directory. For users that haven’t yet updated,
+Firefox will see that the **default** add-on set matches the set in the update
+ping and clear the **update** add-on set.
diff --git a/toolkit/mozapps/webextensions/docs/index.rst b/toolkit/mozapps/webextensions/docs/index.rst
new file mode 100644
index 000000000..ab6ed3c70
--- /dev/null
+++ b/toolkit/mozapps/webextensions/docs/index.rst
@@ -0,0 +1,14 @@
+==============
+Add-on Manager
+==============
+
+This is the nascent documentation of the Add-on Manager code.
+
+The public Add-on Manager interfaces are documented on MDN:
+
+https://developer.mozilla.org/en-US/Add-ons/Add-on_Manager
+
+.. toctree::
+   :maxdepth: 1
+
+   SystemAddons
diff --git a/toolkit/mozapps/webextensions/extensions.manifest b/toolkit/mozapps/webextensions/extensions.manifest
new file mode 100644
index 000000000..c7d2ee386
--- /dev/null
+++ b/toolkit/mozapps/webextensions/extensions.manifest
@@ -0,0 +1,27 @@
+component {66354bc9-7ed1-4692-ae1d-8da97d6b205e} nsBlocklistService.js process=main
+contract @mozilla.org/extensions/blocklist;1 {66354bc9-7ed1-4692-ae1d-8da97d6b205e} process=main
+category profile-after-change nsBlocklistService @mozilla.org/extensions/blocklist;1  process=main
+component {e0a106ed-6ad4-47a4-b6af-2f1c8aa4712d} nsBlocklistServiceContent.js process=content
+contract @mozilla.org/extensions/blocklist;1 {e0a106ed-6ad4-47a4-b6af-2f1c8aa4712d} process=content
+
+category update-timer nsBlocklistService @mozilla.org/extensions/blocklist;1,getService,blocklist-background-update-timer,extensions.blocklist.interval,86400
+#ifndef MOZ_WIDGET_GONK
+component {4399533d-08d1-458c-a87a-235f74451cfa} addonManager.js
+contract @mozilla.org/addons/integration;1 {4399533d-08d1-458c-a87a-235f74451cfa}
+#ifndef MOZ_WIDGET_ANDROID
+category update-timer addonManager @mozilla.org/addons/integration;1,getService,addon-background-update-timer,extensions.update.interval,86400
+#endif
+component {7beb3ba8-6ec3-41b4-b67c-da89b8518922} amContentHandler.js
+contract @mozilla.org/uriloader/content-handler;1?type=application/x-xpinstall {7beb3ba8-6ec3-41b4-b67c-da89b8518922}
+component {0f38e086-89a3-40a5-8ffc-9b694de1d04a} amWebInstallListener.js
+contract @mozilla.org/addons/web-install-listener;1 {0f38e086-89a3-40a5-8ffc-9b694de1d04a}
+component {9df8ef2b-94da-45c9-ab9f-132eb55fddf1} amInstallTrigger.js
+contract @mozilla.org/addons/installtrigger;1 {9df8ef2b-94da-45c9-ab9f-132eb55fddf1}
+category JavaScript-global-property InstallTrigger @mozilla.org/addons/installtrigger;1
+#ifndef MOZ_WIDGET_ANDROID
+category addon-provider-module PluginProvider resource://gre/modules/addons/PluginProvider.jsm
+#endif
+category addon-provider-module GMPProvider resource://gre/modules/addons/GMPProvider.jsm
+#endif
+component {8866d8e3-4ea5-48b7-a891-13ba0ac15235} amWebAPI.js
+contract @mozilla.org/addon-web-api/manager;1 {8866d8e3-4ea5-48b7-a891-13ba0ac15235}
diff --git a/toolkit/mozapps/webextensions/internal/APIExtensionBootstrap.js b/toolkit/mozapps/webextensions/internal/APIExtensionBootstrap.js
new file mode 100644
index 000000000..0eae2475c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/APIExtensionBootstrap.js
@@ -0,0 +1,39 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+Components.utils.import("resource://gre/modules/ExtensionManagement.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+var namespace;
+var resource;
+var resProto;
+
+function install(data, reason) {
+}
+
+function startup(data, reason) {
+  namespace = data.id.replace(/@.*/, "");
+  resource = `extension-${namespace}-api`;
+
+  resProto = Services.io.getProtocolHandler("resource")
+                     .QueryInterface(Components.interfaces.nsIResProtocolHandler);
+
+  resProto.setSubstitution(resource, data.resourceURI);
+
+  ExtensionManagement.registerAPI(
+    namespace,
+    `resource://${resource}/schema.json`,
+    `resource://${resource}/api.js`);
+}
+
+function shutdown(data, reason) {
+  resProto.setSubstitution(resource, null);
+
+  ExtensionManagement.unregisterAPI(namespace);
+}
+
+function uninstall(data, reason) {
+}
diff --git a/toolkit/mozapps/webextensions/internal/AddonConstants.jsm b/toolkit/mozapps/webextensions/internal/AddonConstants.jsm
new file mode 100644
index 000000000..22d91fdf5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/AddonConstants.jsm
@@ -0,0 +1,31 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = [ "ADDON_SIGNING", "REQUIRE_SIGNING" ];
+
+// Make these non-changable properties so they can't be manipulated from other
+// code in the app.
+Object.defineProperty(this, "ADDON_SIGNING", {
+  configurable: false,
+  enumerable: false,
+  writable: false,
+#ifdef MOZ_ADDON_SIGNING
+  value: true,
+#else
+  value: false,
+#endif
+});
+
+Object.defineProperty(this, "REQUIRE_SIGNING", {
+  configurable: false,
+  enumerable: false,
+  writable: false,
+#ifdef MOZ_REQUIRE_SIGNING
+  value: true,
+#else
+  value: false,
+#endif
+});
diff --git a/toolkit/mozapps/webextensions/internal/AddonLogging.jsm b/toolkit/mozapps/webextensions/internal/AddonLogging.jsm
new file mode 100644
index 000000000..f05a6fe6c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/AddonLogging.jsm
@@ -0,0 +1,192 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+
+const KEY_PROFILEDIR                  = "ProfD";
+const FILE_EXTENSIONS_LOG             = "extensions.log";
+const PREF_LOGGING_ENABLED            = "extensions.logging.enabled";
+
+const LOGGER_FILE_PERM                = parseInt("666", 8);
+
+const NS_PREFBRANCH_PREFCHANGE_TOPIC_ID = "nsPref:changed";
+
+Components.utils.import("resource://gre/modules/FileUtils.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+this.EXPORTED_SYMBOLS = [ "LogManager" ];
+
+var gDebugLogEnabled = false;
+
+function formatLogMessage(aType, aName, aStr, aException) {
+  let message = aType.toUpperCase() + " " + aName + ": " + aStr;
+  if (aException) {
+    if (typeof aException == "number")
+      return message + ": " + Components.Exception("", aException).name;
+
+    message  = message + ": " + aException;
+    // instanceOf doesn't work here, let's duck type
+    if (aException.fileName)
+      message = message + " (" + aException.fileName + ":" + aException.lineNumber + ")";
+
+    if (aException.message == "too much recursion")
+      dump(message + "\n" + aException.stack + "\n");
+  }
+  return message;
+}
+
+function getStackDetails(aException) {
+  // Defensively wrap all this to ensure that failing to get the message source
+  // doesn't stop the message from being logged
+  try {
+    if (aException) {
+      if (aException instanceof Ci.nsIException) {
+        return {
+          sourceName: aException.filename,
+          lineNumber: aException.lineNumber
+        };
+      }
+
+      if (typeof aException == "object") {
+        return {
+          sourceName: aException.fileName,
+          lineNumber: aException.lineNumber
+        };
+      }
+    }
+
+    let stackFrame = Components.stack.caller.caller.caller;
+    return {
+      sourceName: stackFrame.filename,
+      lineNumber: stackFrame.lineNumber
+    };
+  }
+  catch (e) {
+    return {
+      sourceName: null,
+      lineNumber: 0
+    };
+  }
+}
+
+function AddonLogger(aName) {
+  this.name = aName;
+}
+
+AddonLogger.prototype = {
+  name: null,
+
+  error: function(aStr, aException) {
+    let message = formatLogMessage("error", this.name, aStr, aException);
+
+    let stack = getStackDetails(aException);
+
+    let consoleMessage = Cc["@mozilla.org/scripterror;1"].
+                         createInstance(Ci.nsIScriptError);
+    consoleMessage.init(message, stack.sourceName, null, stack.lineNumber, 0,
+                        Ci.nsIScriptError.errorFlag, "component javascript");
+    Services.console.logMessage(consoleMessage);
+
+    // Always dump errors, in case the Console Service isn't listening yet
+    dump("*** " + message + "\n");
+
+    function formatTimestamp(date) {
+      // Format timestamp as: "%Y-%m-%d %H:%M:%S"
+      let year = String(date.getFullYear());
+      let month = String(date.getMonth() + 1).padStart(2, "0");
+      let day = String(date.getDate()).padStart(2, "0");
+      let hours = String(date.getHours()).padStart(2, "0");
+      let minutes = String(date.getMinutes()).padStart(2, "0");
+      let seconds = String(date.getSeconds()).padStart(2, "0");
+
+      return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
+    }
+
+    try {
+      var tstamp = new Date();
+      var logfile = FileUtils.getFile(KEY_PROFILEDIR, [FILE_EXTENSIONS_LOG]);
+      var stream = Cc["@mozilla.org/network/file-output-stream;1"].
+                   createInstance(Ci.nsIFileOutputStream);
+      stream.init(logfile, 0x02 | 0x08 | 0x10, LOGGER_FILE_PERM, 0); // write, create, append
+      var writer = Cc["@mozilla.org/intl/converter-output-stream;1"].
+                   createInstance(Ci.nsIConverterOutputStream);
+      writer.init(stream, "UTF-8", 0, 0x0000);
+      writer.writeString(formatTimestamp(tstamp) + " " +
+                         message + " at " + stack.sourceName + ":" +
+                         stack.lineNumber + "\n");
+      writer.close();
+    }
+    catch (e) { }
+  },
+
+  warn: function(aStr, aException) {
+    let message = formatLogMessage("warn", this.name, aStr, aException);
+
+    let stack = getStackDetails(aException);
+
+    let consoleMessage = Cc["@mozilla.org/scripterror;1"].
+                         createInstance(Ci.nsIScriptError);
+    consoleMessage.init(message, stack.sourceName, null, stack.lineNumber, 0,
+                        Ci.nsIScriptError.warningFlag, "component javascript");
+    Services.console.logMessage(consoleMessage);
+
+    if (gDebugLogEnabled)
+      dump("*** " + message + "\n");
+  },
+
+  log: function(aStr, aException) {
+    if (gDebugLogEnabled) {
+      let message = formatLogMessage("log", this.name, aStr, aException);
+      dump("*** " + message + "\n");
+      Services.console.logStringMessage(message);
+    }
+  }
+};
+
+this.LogManager = {
+  getLogger: function(aName, aTarget) {
+    let logger = new AddonLogger(aName);
+
+    if (aTarget) {
+      ["error", "warn", "log"].forEach(function(name) {
+        let fname = name.toUpperCase();
+        delete aTarget[fname];
+        aTarget[fname] = function(aStr, aException) {
+          logger[name](aStr, aException);
+        };
+      });
+    }
+
+    return logger;
+  }
+};
+
+var PrefObserver = {
+  init: function() {
+    Services.prefs.addObserver(PREF_LOGGING_ENABLED, this, false);
+    Services.obs.addObserver(this, "xpcom-shutdown", false);
+    this.observe(null, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID, PREF_LOGGING_ENABLED);
+  },
+
+  observe: function(aSubject, aTopic, aData) {
+    if (aTopic == "xpcom-shutdown") {
+      Services.prefs.removeObserver(PREF_LOGGING_ENABLED, this);
+      Services.obs.removeObserver(this, "xpcom-shutdown");
+    }
+    else if (aTopic == NS_PREFBRANCH_PREFCHANGE_TOPIC_ID) {
+      try {
+        gDebugLogEnabled = Services.prefs.getBoolPref(PREF_LOGGING_ENABLED);
+      }
+      catch (e) {
+        gDebugLogEnabled = false;
+      }
+    }
+  }
+};
+
+PrefObserver.init();
diff --git a/toolkit/mozapps/webextensions/internal/AddonRepository.jsm b/toolkit/mozapps/webextensions/internal/AddonRepository.jsm
new file mode 100644
index 000000000..7f88d44ad
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/AddonRepository.jsm
@@ -0,0 +1,1988 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+const Cr = Components.results;
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/AddonManager.jsm");
+/* globals AddonManagerPrivate*/
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
+                                  "resource://gre/modules/NetUtil.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "OS",
+                                  "resource://gre/modules/osfile.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "DeferredSave",
+                                  "resource://gre/modules/DeferredSave.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AddonRepository_SQLiteMigrator",
+                                  "resource://gre/modules/addons/AddonRepository_SQLiteMigrator.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Promise",
+                                  "resource://gre/modules/Promise.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ServiceRequest",
+                                  "resource://gre/modules/ServiceRequest.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Task",
+                                  "resource://gre/modules/Task.jsm");
+
+
+this.EXPORTED_SYMBOLS = [ "AddonRepository" ];
+
+const PREF_GETADDONS_CACHE_ENABLED       = "extensions.getAddons.cache.enabled";
+const PREF_GETADDONS_CACHE_TYPES         = "extensions.getAddons.cache.types";
+const PREF_GETADDONS_CACHE_ID_ENABLED    = "extensions.%ID%.getAddons.cache.enabled"
+const PREF_GETADDONS_BROWSEADDONS        = "extensions.getAddons.browseAddons";
+const PREF_GETADDONS_BYIDS               = "extensions.getAddons.get.url";
+const PREF_GETADDONS_BYIDS_PERFORMANCE   = "extensions.getAddons.getWithPerformance.url";
+const PREF_GETADDONS_BROWSERECOMMENDED   = "extensions.getAddons.recommended.browseURL";
+const PREF_GETADDONS_GETRECOMMENDED      = "extensions.getAddons.recommended.url";
+const PREF_GETADDONS_BROWSESEARCHRESULTS = "extensions.getAddons.search.browseURL";
+const PREF_GETADDONS_GETSEARCHRESULTS    = "extensions.getAddons.search.url";
+const PREF_GETADDONS_DB_SCHEMA           = "extensions.getAddons.databaseSchema"
+
+const PREF_METADATA_LASTUPDATE           = "extensions.getAddons.cache.lastUpdate";
+const PREF_METADATA_UPDATETHRESHOLD_SEC  = "extensions.getAddons.cache.updateThreshold";
+const DEFAULT_METADATA_UPDATETHRESHOLD_SEC = 172800;  // two days
+
+const XMLURI_PARSE_ERROR  = "http://www.mozilla.org/newlayout/xml/parsererror.xml";
+
+const API_VERSION = "1.5";
+const DEFAULT_CACHE_TYPES = "extension,theme,locale,dictionary";
+
+const KEY_PROFILEDIR        = "ProfD";
+const FILE_DATABASE         = "addons.json";
+const DB_SCHEMA             = 5;
+const DB_MIN_JSON_SCHEMA    = 5;
+const DB_BATCH_TIMEOUT_MS   = 50;
+
+const BLANK_DB = function() {
+  return {
+    addons: new Map(),
+    schema: DB_SCHEMA
+  };
+}
+
+const TOOLKIT_ID     = "toolkit@mozilla.org";
+
+Cu.import("resource://gre/modules/Log.jsm");
+const LOGGER_ID = "addons.repository";
+
+// Create a new logger for use by the Addons Repository
+// (Requires AddonManager.jsm)
+var logger = Log.repository.getLogger(LOGGER_ID);
+
+// A map between XML keys to AddonSearchResult keys for string values
+// that require no extra parsing from XML
+const STRING_KEY_MAP = {
+  name:               "name",
+  version:            "version",
+  homepage:           "homepageURL",
+  support:            "supportURL"
+};
+
+// A map between XML keys to AddonSearchResult keys for string values
+// that require parsing from HTML
+const HTML_KEY_MAP = {
+  summary:            "description",
+  description:        "fullDescription",
+  developer_comments: "developerComments",
+  eula:               "eula"
+};
+
+// A map between XML keys to AddonSearchResult keys for integer values
+// that require no extra parsing from XML
+const INTEGER_KEY_MAP = {
+  total_downloads:  "totalDownloads",
+  weekly_downloads: "weeklyDownloads",
+  daily_users:      "dailyUsers"
+};
+
+function convertHTMLToPlainText(html) {
+  if (!html)
+    return html;
+  var converter = Cc["@mozilla.org/widget/htmlformatconverter;1"].
+                  createInstance(Ci.nsIFormatConverter);
+
+  var input = Cc["@mozilla.org/supports-string;1"].
+              createInstance(Ci.nsISupportsString);
+  input.data = html.replace(/\n/g, "<br>");
+
+  var output = {};
+  converter.convert("text/html", input, input.data.length, "text/unicode",
+                    output, {});
+
+  if (output.value instanceof Ci.nsISupportsString)
+    return output.value.data.replace(/\r\n/g, "\n");
+  return html;
+}
+
+function getAddonsToCache(aIds, aCallback) {
+  try {
+    var types = Services.prefs.getCharPref(PREF_GETADDONS_CACHE_TYPES);
+  }
+  catch (e) { }
+  if (!types)
+    types = DEFAULT_CACHE_TYPES;
+
+  types = types.split(",");
+
+  AddonManager.getAddonsByIDs(aIds, function(aAddons) {
+    let enabledIds = [];
+    for (var i = 0; i < aIds.length; i++) {
+      var preference = PREF_GETADDONS_CACHE_ID_ENABLED.replace("%ID%", aIds[i]);
+      try {
+        if (!Services.prefs.getBoolPref(preference))
+          continue;
+      } catch (e) {
+        // If the preference doesn't exist caching is enabled by default
+      }
+
+      // The add-ons manager may not know about this ID yet if it is a pending
+      // install. In that case we'll just cache it regardless
+      if (aAddons[i] && (types.indexOf(aAddons[i].type) == -1))
+        continue;
+
+      enabledIds.push(aIds[i]);
+    }
+
+    aCallback(enabledIds);
+  });
+}
+
+function AddonSearchResult(aId) {
+  this.id = aId;
+  this.icons = {};
+  this._unsupportedProperties = {};
+}
+
+AddonSearchResult.prototype = {
+  /**
+   * The ID of the add-on
+   */
+  id: null,
+
+  /**
+   * The add-on type (e.g. "extension" or "theme")
+   */
+  type: null,
+
+  /**
+   * The name of the add-on
+   */
+  name: null,
+
+  /**
+   * The version of the add-on
+   */
+  version: null,
+
+  /**
+   * The creator of the add-on
+   */
+  creator: null,
+
+  /**
+   * The developers of the add-on
+   */
+  developers: null,
+
+  /**
+   * A short description of the add-on
+   */
+  description: null,
+
+  /**
+   * The full description of the add-on
+   */
+  fullDescription: null,
+
+  /**
+   * The developer comments for the add-on. This includes any information
+   * that may be helpful to end users that isn't necessarily applicable to
+   * the add-on description (e.g. known major bugs)
+   */
+  developerComments: null,
+
+  /**
+   * The end-user licensing agreement (EULA) of the add-on
+   */
+  eula: null,
+
+  /**
+   * The url of the add-on's icon
+   */
+  get iconURL() {
+    return this.icons && this.icons[32];
+  },
+
+   /**
+   * The URLs of the add-on's icons, as an object with icon size as key
+   */
+  icons: null,
+
+  /**
+   * An array of screenshot urls for the add-on
+   */
+  screenshots: null,
+
+  /**
+   * The homepage for the add-on
+   */
+  homepageURL: null,
+
+  /**
+   * The homepage for the add-on
+   */
+  learnmoreURL: null,
+
+  /**
+   * The support URL for the add-on
+   */
+  supportURL: null,
+
+  /**
+   * The contribution url of the add-on
+   */
+  contributionURL: null,
+
+  /**
+   * The suggested contribution amount
+   */
+  contributionAmount: null,
+
+  /**
+   * The URL to visit in order to purchase the add-on
+   */
+  purchaseURL: null,
+
+  /**
+   * The numerical cost of the add-on in some currency, for sorting purposes
+   * only
+   */
+  purchaseAmount: null,
+
+  /**
+   * The display cost of the add-on, for display purposes only
+   */
+  purchaseDisplayAmount: null,
+
+  /**
+   * The rating of the add-on, 0-5
+   */
+  averageRating: null,
+
+  /**
+   * The number of reviews for this add-on
+   */
+  reviewCount: null,
+
+  /**
+   * The URL to the list of reviews for this add-on
+   */
+  reviewURL: null,
+
+  /**
+   * The total number of times the add-on was downloaded
+   */
+  totalDownloads: null,
+
+  /**
+   * The number of times the add-on was downloaded the current week
+   */
+  weeklyDownloads: null,
+
+  /**
+   * The number of daily users for the add-on
+   */
+  dailyUsers: null,
+
+  /**
+   * AddonInstall object generated from the add-on XPI url
+   */
+  install: null,
+
+  /**
+   * nsIURI storing where this add-on was installed from
+   */
+  sourceURI: null,
+
+  /**
+   * The status of the add-on in the repository (e.g. 4 = "Public")
+   */
+  repositoryStatus: null,
+
+  /**
+   * The size of the add-on's files in bytes. For an add-on that have not yet
+   * been downloaded this may be an estimated value.
+   */
+  size: null,
+
+  /**
+   * The Date that the add-on was most recently updated
+   */
+  updateDate: null,
+
+  /**
+   * True or false depending on whether the add-on is compatible with the
+   * current version of the application
+   */
+  isCompatible: true,
+
+  /**
+   * True or false depending on whether the add-on is compatible with the
+   * current platform
+   */
+  isPlatformCompatible: true,
+
+  /**
+   * Array of AddonCompatibilityOverride objects, that describe overrides for
+   * compatibility with an application versions.
+   **/
+  compatibilityOverrides: null,
+
+  /**
+   * True if the add-on has a secure means of updating
+   */
+  providesUpdatesSecurely: true,
+
+  /**
+   * The current blocklist state of the add-on
+   */
+  blocklistState: Ci.nsIBlocklistService.STATE_NOT_BLOCKED,
+
+  /**
+   * True if this add-on cannot be used in the application based on version
+   * compatibility, dependencies and blocklisting
+   */
+  appDisabled: false,
+
+  /**
+   * True if the user wants this add-on to be disabled
+   */
+  userDisabled: false,
+
+  /**
+   * Indicates what scope the add-on is installed in, per profile, user,
+   * system or application
+   */
+  scope: AddonManager.SCOPE_PROFILE,
+
+  /**
+   * True if the add-on is currently functional
+   */
+  isActive: true,
+
+  /**
+   * A bitfield holding all of the current operations that are waiting to be
+   * performed for this add-on
+   */
+  pendingOperations: AddonManager.PENDING_NONE,
+
+  /**
+   * A bitfield holding all the the operations that can be performed on
+   * this add-on
+   */
+  permissions: 0,
+
+  /**
+   * Tests whether this add-on is known to be compatible with a
+   * particular application and platform version.
+   *
+   * @param  appVersion
+   *         An application version to test against
+   * @param  platformVersion
+   *         A platform version to test against
+   * @return Boolean representing if the add-on is compatible
+   */
+  isCompatibleWith: function(aAppVersion, aPlatformVersion) {
+    return true;
+  },
+
+  /**
+   * Starts an update check for this add-on. This will perform
+   * asynchronously and deliver results to the given listener.
+   *
+   * @param  aListener
+   *         An UpdateListener for the update process
+   * @param  aReason
+   *         A reason code for performing the update
+   * @param  aAppVersion
+   *         An application version to check for updates for
+   * @param  aPlatformVersion
+   *         A platform version to check for updates for
+   */
+  findUpdates: function(aListener, aReason, aAppVersion, aPlatformVersion) {
+    if ("onNoCompatibilityUpdateAvailable" in aListener)
+      aListener.onNoCompatibilityUpdateAvailable(this);
+    if ("onNoUpdateAvailable" in aListener)
+      aListener.onNoUpdateAvailable(this);
+    if ("onUpdateFinished" in aListener)
+      aListener.onUpdateFinished(this);
+  },
+
+  toJSON: function() {
+    let json = {};
+
+    for (let property of Object.keys(this)) {
+      let value = this[property];
+      if (property.startsWith("_") ||
+          typeof(value) === "function")
+        continue;
+
+      try {
+        switch (property) {
+          case "sourceURI":
+            json.sourceURI = value ? value.spec : "";
+            break;
+
+          case "updateDate":
+            json.updateDate = value ? value.getTime() : "";
+            break;
+
+          default:
+            json[property] = value;
+        }
+      } catch (ex) {
+        logger.warn("Error writing property value for " + property);
+      }
+    }
+
+    for (let property of Object.keys(this._unsupportedProperties)) {
+      let value = this._unsupportedProperties[property];
+      if (!property.startsWith("_"))
+        json[property] = value;
+    }
+
+    return json;
+  }
+}
+
+/**
+ * The add-on repository is a source of add-ons that can be installed. It can
+ * be searched in three ways. The first takes a list of IDs and returns a
+ * list of the corresponding add-ons. The second returns a list of add-ons that
+ * come highly recommended. This list should change frequently. The third is to
+ * search for specific search terms entered by the user. Searches are
+ * asynchronous and results should be passed to the provided callback object
+ * when complete. The results passed to the callback should only include add-ons
+ * that are compatible with the current application and are not already
+ * installed.
+ */
+this.AddonRepository = {
+  /**
+   * Whether caching is currently enabled
+   */
+  get cacheEnabled() {
+    let preference = PREF_GETADDONS_CACHE_ENABLED;
+    let enabled = false;
+    try {
+      enabled = Services.prefs.getBoolPref(preference);
+    } catch (e) {
+      logger.warn("cacheEnabled: Couldn't get pref: " + preference);
+    }
+
+    return enabled;
+  },
+
+  // A cache of the add-ons stored in the database
+  _addons: null,
+
+  // Whether a search is currently in progress
+  _searching: false,
+
+  // XHR associated with the current request
+  _request: null,
+
+  /*
+   * Addon search results callback object that contains two functions
+   *
+   * searchSucceeded - Called when a search has suceeded.
+   *
+   * @param  aAddons
+   *         An array of the add-on results. In the case of searching for
+   *         specific terms the ordering of results may be determined by
+   *         the search provider.
+   * @param  aAddonCount
+   *         The length of aAddons
+   * @param  aTotalResults
+   *         The total results actually available in the repository
+   *
+   *
+   * searchFailed - Called when an error occurred when performing a search.
+   */
+  _callback: null,
+
+  // Maximum number of results to return
+  _maxResults: null,
+
+  /**
+   * Shut down AddonRepository
+   * return: promise{integer} resolves with the result of flushing
+   *         the AddonRepository database
+   */
+  shutdown: function() {
+    this.cancelSearch();
+
+    this._addons = null;
+    return AddonDatabase.shutdown(false);
+  },
+
+  metadataAge: function() {
+    let now = Math.round(Date.now() / 1000);
+
+    let lastUpdate = 0;
+    try {
+      lastUpdate = Services.prefs.getIntPref(PREF_METADATA_LASTUPDATE);
+    } catch (e) {}
+
+    // Handle clock jumps
+    if (now < lastUpdate) {
+      return now;
+    }
+    return now - lastUpdate;
+  },
+
+  isMetadataStale: function() {
+    let threshold = DEFAULT_METADATA_UPDATETHRESHOLD_SEC;
+    try {
+      threshold = Services.prefs.getIntPref(PREF_METADATA_UPDATETHRESHOLD_SEC);
+    } catch (e) {}
+    return (this.metadataAge() > threshold);
+  },
+
+  /**
+   * Asynchronously get a cached add-on by id. The add-on (or null if the
+   * add-on is not found) is passed to the specified callback. If caching is
+   * disabled, null is passed to the specified callback.
+   *
+   * @param  aId
+   *         The id of the add-on to get
+   * @param  aCallback
+   *         The callback to pass the result back to
+   */
+  getCachedAddonByID: Task.async(function*(aId, aCallback) {
+    if (!aId || !this.cacheEnabled) {
+      aCallback(null);
+      return;
+    }
+
+    function getAddon(aAddons) {
+      aCallback(aAddons.get(aId) || null);
+    }
+
+    if (this._addons == null) {
+      AddonDatabase.retrieveStoredData().then(aAddons => {
+        this._addons = aAddons;
+        getAddon(aAddons);
+      });
+
+      return;
+    }
+
+    getAddon(this._addons);
+  }),
+
+  /**
+   * Asynchronously repopulate cache so it only contains the add-ons
+   * corresponding to the specified ids. If caching is disabled,
+   * the cache is completely removed.
+   *
+   * @param  aTimeout
+   *         (Optional) timeout in milliseconds to abandon the XHR request
+   *         if we have not received a response from the server.
+   * @return Promise{null}
+   *         Resolves when the metadata ping is complete
+   */
+  repopulateCache: function(aTimeout) {
+    return this._repopulateCacheInternal(false, aTimeout);
+  },
+
+  /*
+   * Clear and delete the AddonRepository database
+   * @return Promise{null} resolves when the database is deleted
+   */
+  _clearCache: function() {
+    this._addons = null;
+    return AddonDatabase.delete().then(() =>
+      new Promise((resolve, reject) =>
+        AddonManagerPrivate.updateAddonRepositoryData(resolve))
+    );
+  },
+
+  _repopulateCacheInternal: Task.async(function*(aSendPerformance, aTimeout) {
+    let allAddons = yield new Promise((resolve, reject) =>
+      AddonManager.getAllAddons(resolve));
+
+    // Filter the hotfix out of our list of add-ons
+    allAddons = allAddons.filter(a => a.id != AddonManager.hotfixID);
+
+    // Completely remove cache if caching is not enabled
+    if (!this.cacheEnabled) {
+      logger.debug("Clearing cache because it is disabled");
+      yield this._clearCache();
+      return;
+    }
+
+    let ids = allAddons.map(a => a.id);
+    logger.debug("Repopulate add-on cache with " + ids.toSource());
+
+    let addonsToCache = yield new Promise((resolve, reject) =>
+      getAddonsToCache(ids, resolve));
+
+    // Completely remove cache if there are no add-ons to cache
+    if (addonsToCache.length == 0) {
+      logger.debug("Clearing cache because 0 add-ons were requested");
+      yield this._clearCache();
+      return;
+    }
+
+    yield new Promise((resolve, reject) =>
+      this._beginGetAddons(addonsToCache, {
+        searchSucceeded: aAddons => {
+          this._addons = new Map();
+          for (let addon of aAddons) {
+            this._addons.set(addon.id, addon);
+          }
+          AddonDatabase.repopulate(aAddons, resolve);
+        },
+        searchFailed: () => {
+          logger.warn("Search failed when repopulating cache");
+          resolve();
+        }
+      }, aSendPerformance, aTimeout));
+
+    // Always call AddonManager updateAddonRepositoryData after we refill the cache
+    yield new Promise((resolve, reject) =>
+      AddonManagerPrivate.updateAddonRepositoryData(resolve));
+  }),
+
+  /**
+   * Asynchronously add add-ons to the cache corresponding to the specified
+   * ids. If caching is disabled, the cache is unchanged and the callback is
+   * immediately called if it is defined.
+   *
+   * @param  aIds
+   *         The array of add-on ids to add to the cache
+   * @param  aCallback
+   *         The optional callback to call once complete
+   */
+  cacheAddons: function(aIds, aCallback) {
+    logger.debug("cacheAddons: enabled " + this.cacheEnabled + " IDs " + aIds.toSource());
+    if (!this.cacheEnabled) {
+      if (aCallback)
+        aCallback();
+      return;
+    }
+
+    getAddonsToCache(aIds, aAddons => {
+      // If there are no add-ons to cache, act as if caching is disabled
+      if (aAddons.length == 0) {
+        if (aCallback)
+          aCallback();
+        return;
+      }
+
+      this.getAddonsByIDs(aAddons, {
+        searchSucceeded: aAddons => {
+          for (let addon of aAddons) {
+            this._addons.set(addon.id, addon);
+          }
+          AddonDatabase.insertAddons(aAddons, aCallback);
+        },
+        searchFailed: () => {
+          logger.warn("Search failed when adding add-ons to cache");
+          if (aCallback)
+            aCallback();
+        }
+      });
+    });
+  },
+
+  /**
+   * The homepage for visiting this repository. If the corresponding preference
+   * is not defined, defaults to about:blank.
+   */
+  get homepageURL() {
+    let url = this._formatURLPref(PREF_GETADDONS_BROWSEADDONS, {});
+    return (url != null) ? url : "about:blank";
+  },
+
+  /**
+   * Returns whether this instance is currently performing a search. New
+   * searches will not be performed while this is the case.
+   */
+  get isSearching() {
+    return this._searching;
+  },
+
+  /**
+   * The url that can be visited to see recommended add-ons in this repository.
+   * If the corresponding preference is not defined, defaults to about:blank.
+   */
+  getRecommendedURL: function() {
+    let url = this._formatURLPref(PREF_GETADDONS_BROWSERECOMMENDED, {});
+    return (url != null) ? url : "about:blank";
+  },
+
+  /**
+   * Retrieves the url that can be visited to see search results for the given
+   * terms. If the corresponding preference is not defined, defaults to
+   * about:blank.
+   *
+   * @param  aSearchTerms
+   *         Search terms used to search the repository
+   */
+  getSearchURL: function(aSearchTerms) {
+    let url = this._formatURLPref(PREF_GETADDONS_BROWSESEARCHRESULTS, {
+      TERMS : encodeURIComponent(aSearchTerms)
+    });
+    return (url != null) ? url : "about:blank";
+  },
+
+  /**
+   * Cancels the search in progress. If there is no search in progress this
+   * does nothing.
+   */
+  cancelSearch: function() {
+    this._searching = false;
+    if (this._request) {
+      this._request.abort();
+      this._request = null;
+    }
+    this._callback = null;
+  },
+
+  /**
+   * Begins a search for add-ons in this repository by ID. Results will be
+   * passed to the given callback.
+   *
+   * @param  aIDs
+   *         The array of ids to search for
+   * @param  aCallback
+   *         The callback to pass results to
+   */
+  getAddonsByIDs: function(aIDs, aCallback) {
+    return this._beginGetAddons(aIDs, aCallback, false);
+  },
+
+  /**
+   * Begins a search of add-ons, potentially sending performance data.
+   *
+   * @param  aIDs
+   *         Array of ids to search for.
+   * @param  aCallback
+   *         Function to pass results to.
+   * @param  aSendPerformance
+   *         Boolean indicating whether to send performance data with the
+   *         request.
+   * @param  aTimeout
+   *         (Optional) timeout in milliseconds to abandon the XHR request
+   *         if we have not received a response from the server.
+   */
+  _beginGetAddons: function(aIDs, aCallback, aSendPerformance, aTimeout) {
+    let ids = aIDs.slice(0);
+
+    let params = {
+      API_VERSION : API_VERSION,
+      IDS : ids.map(encodeURIComponent).join(',')
+    };
+
+    let pref = PREF_GETADDONS_BYIDS;
+
+    if (aSendPerformance) {
+      let type = Services.prefs.getPrefType(PREF_GETADDONS_BYIDS_PERFORMANCE);
+      if (type == Services.prefs.PREF_STRING) {
+        pref = PREF_GETADDONS_BYIDS_PERFORMANCE;
+
+        let startupInfo = Cc["@mozilla.org/toolkit/app-startup;1"].
+                          getService(Ci.nsIAppStartup).
+                          getStartupInfo();
+
+        params.TIME_MAIN = "";
+        params.TIME_FIRST_PAINT = "";
+        params.TIME_SESSION_RESTORED = "";
+        if (startupInfo.process) {
+          if (startupInfo.main) {
+            params.TIME_MAIN = startupInfo.main - startupInfo.process;
+          }
+          if (startupInfo.firstPaint) {
+            params.TIME_FIRST_PAINT = startupInfo.firstPaint -
+                                      startupInfo.process;
+          }
+          if (startupInfo.sessionRestored) {
+            params.TIME_SESSION_RESTORED = startupInfo.sessionRestored -
+                                           startupInfo.process;
+          }
+        }
+      }
+    }
+
+    let url = this._formatURLPref(pref, params);
+
+    let  handleResults = (aElements, aTotalResults, aCompatData) => {
+      // Don't use this._parseAddons() so that, for example,
+      // incompatible add-ons are not filtered out
+      let results = [];
+      for (let i = 0; i < aElements.length && results.length < this._maxResults; i++) {
+        let result = this._parseAddon(aElements[i], null, aCompatData);
+        if (result == null)
+          continue;
+
+        // Ignore add-on if it wasn't actually requested
+        let idIndex = ids.indexOf(result.addon.id);
+        if (idIndex == -1)
+          continue;
+
+        // Ignore add-on if the add-on manager doesn't know about its type:
+        if (!(result.addon.type in AddonManager.addonTypes)) {
+          continue;
+        }
+
+        results.push(result);
+        // Ignore this add-on from now on
+        ids.splice(idIndex, 1);
+      }
+
+      // Include any compatibility overrides for addons not hosted by the
+      // remote repository.
+      for (let id in aCompatData) {
+        let addonCompat = aCompatData[id];
+        if (addonCompat.hosted)
+          continue;
+
+        let addon = new AddonSearchResult(addonCompat.id);
+        // Compatibility overrides can only be for extensions.
+        addon.type = "extension";
+        addon.compatibilityOverrides = addonCompat.compatRanges;
+        let result = {
+          addon: addon,
+          xpiURL: null,
+          xpiHash: null
+        };
+        results.push(result);
+      }
+
+      // aTotalResults irrelevant
+      this._reportSuccess(results, -1);
+    }
+
+    this._beginSearch(url, ids.length, aCallback, handleResults, aTimeout);
+  },
+
+  /**
+   * Performs the daily background update check.
+   *
+   * This API both searches for the add-on IDs specified and sends performance
+   * data. It is meant to be called as part of the daily update ping. It should
+   * not be used for any other purpose. Use repopulateCache instead.
+   *
+   * @return Promise{null} Resolves when the metadata update is complete.
+   */
+  backgroundUpdateCheck: function() {
+    return this._repopulateCacheInternal(true);
+  },
+
+  /**
+   * Begins a search for recommended add-ons in this repository. Results will
+   * be passed to the given callback.
+   *
+   * @param  aMaxResults
+   *         The maximum number of results to return
+   * @param  aCallback
+   *         The callback to pass results to
+   */
+  retrieveRecommendedAddons: function(aMaxResults, aCallback) {
+    let url = this._formatURLPref(PREF_GETADDONS_GETRECOMMENDED, {
+      API_VERSION : API_VERSION,
+
+      // Get twice as many results to account for potential filtering
+      MAX_RESULTS : 2 * aMaxResults
+    });
+
+    let handleResults = (aElements, aTotalResults) => {
+      this._getLocalAddonIds(aLocalAddonIds => {
+        // aTotalResults irrelevant
+        this._parseAddons(aElements, -1, aLocalAddonIds);
+      });
+    }
+
+    this._beginSearch(url, aMaxResults, aCallback, handleResults);
+  },
+
+  /**
+   * Begins a search for add-ons in this repository. Results will be passed to
+   * the given callback.
+   *
+   * @param  aSearchTerms
+   *         The terms to search for
+   * @param  aMaxResults
+   *         The maximum number of results to return
+   * @param  aCallback
+   *         The callback to pass results to
+   */
+  searchAddons: function(aSearchTerms, aMaxResults, aCallback) {
+    let compatMode = "normal";
+    if (!AddonManager.checkCompatibility)
+      compatMode = "ignore";
+    else if (AddonManager.strictCompatibility)
+      compatMode = "strict";
+
+    let substitutions = {
+      API_VERSION : API_VERSION,
+      TERMS : encodeURIComponent(aSearchTerms),
+      // Get twice as many results to account for potential filtering
+      MAX_RESULTS : 2 * aMaxResults,
+      COMPATIBILITY_MODE : compatMode,
+    };
+
+    let url = this._formatURLPref(PREF_GETADDONS_GETSEARCHRESULTS, substitutions);
+
+    let handleResults = (aElements, aTotalResults) => {
+      this._getLocalAddonIds(aLocalAddonIds => {
+        this._parseAddons(aElements, aTotalResults, aLocalAddonIds);
+      });
+    }
+
+    this._beginSearch(url, aMaxResults, aCallback, handleResults);
+  },
+
+  // Posts results to the callback
+  _reportSuccess: function(aResults, aTotalResults) {
+    this._searching = false;
+    this._request = null;
+    // The callback may want to trigger a new search so clear references early
+    let addons = aResults.map(result => result.addon);
+    let callback = this._callback;
+    this._callback = null;
+    callback.searchSucceeded(addons, addons.length, aTotalResults);
+  },
+
+  // Notifies the callback of a failure
+  _reportFailure: function() {
+    this._searching = false;
+    this._request = null;
+    // The callback may want to trigger a new search so clear references early
+    let callback = this._callback;
+    this._callback = null;
+    callback.searchFailed();
+  },
+
+  // Get descendant by unique tag name. Returns null if not unique tag name.
+  _getUniqueDescendant: function(aElement, aTagName) {
+    let elementsList = aElement.getElementsByTagName(aTagName);
+    return (elementsList.length == 1) ? elementsList[0] : null;
+  },
+
+  // Get direct descendant by unique tag name.
+  // Returns null if not unique tag name.
+  _getUniqueDirectDescendant: function(aElement, aTagName) {
+    let elementsList = Array.filter(aElement.children,
+                                    aChild => aChild.tagName == aTagName);
+    return (elementsList.length == 1) ? elementsList[0] : null;
+  },
+
+  // Parse out trimmed text content. Returns null if text content empty.
+  _getTextContent: function(aElement) {
+    let textContent = aElement.textContent.trim();
+    return (textContent.length > 0) ? textContent : null;
+  },
+
+  // Parse out trimmed text content of a descendant with the specified tag name
+  // Returns null if the parsing unsuccessful.
+  _getDescendantTextContent: function(aElement, aTagName) {
+    let descendant = this._getUniqueDescendant(aElement, aTagName);
+    return (descendant != null) ? this._getTextContent(descendant) : null;
+  },
+
+  // Parse out trimmed text content of a direct descendant with the specified
+  // tag name.
+  // Returns null if the parsing unsuccessful.
+  _getDirectDescendantTextContent: function(aElement, aTagName) {
+    let descendant = this._getUniqueDirectDescendant(aElement, aTagName);
+    return (descendant != null) ? this._getTextContent(descendant) : null;
+  },
+
+  /*
+   * Creates an AddonSearchResult by parsing an <addon> element
+   *
+   * @param  aElement
+   *         The <addon> element to parse
+   * @param  aSkip
+   *         Object containing ids and sourceURIs of add-ons to skip.
+   * @param  aCompatData
+   *         Array of parsed addon_compatibility elements to accosiate with the
+   *         resulting AddonSearchResult. Optional.
+   * @return Result object containing the parsed AddonSearchResult, xpiURL and
+   *         xpiHash if the parsing was successful. Otherwise returns null.
+   */
+  _parseAddon: function(aElement, aSkip, aCompatData) {
+    let skipIDs = (aSkip && aSkip.ids) ? aSkip.ids : [];
+    let skipSourceURIs = (aSkip && aSkip.sourceURIs) ? aSkip.sourceURIs : [];
+
+    let guid = this._getDescendantTextContent(aElement, "guid");
+    if (guid == null || skipIDs.indexOf(guid) != -1)
+      return null;
+
+    let addon = new AddonSearchResult(guid);
+    let result = {
+      addon: addon,
+      xpiURL: null,
+      xpiHash: null
+    };
+
+    if (aCompatData && guid in aCompatData)
+      addon.compatibilityOverrides = aCompatData[guid].compatRanges;
+
+    for (let node = aElement.firstChild; node; node = node.nextSibling) {
+      if (!(node instanceof Ci.nsIDOMElement))
+        continue;
+
+      let localName = node.localName;
+
+      // Handle case where the wanted string value is located in text content
+      // but only if the content is not empty
+      if (localName in STRING_KEY_MAP) {
+        addon[STRING_KEY_MAP[localName]] = this._getTextContent(node) || addon[STRING_KEY_MAP[localName]];
+        continue;
+      }
+
+      // Handle case where the wanted string value is html located in text content
+      if (localName in HTML_KEY_MAP) {
+        addon[HTML_KEY_MAP[localName]] = convertHTMLToPlainText(this._getTextContent(node));
+        continue;
+      }
+
+      // Handle case where the wanted integer value is located in text content
+      if (localName in INTEGER_KEY_MAP) {
+        let value = parseInt(this._getTextContent(node));
+        if (value >= 0)
+          addon[INTEGER_KEY_MAP[localName]] = value;
+        continue;
+      }
+
+      // Handle cases that aren't as simple as grabbing the text content
+      switch (localName) {
+        case "type":
+          // Map AMO's type id to corresponding string
+          // https://github.com/mozilla/olympia/blob/master/apps/constants/base.py#L127
+          // These definitions need to be updated whenever AMO adds a new type.
+          let id = parseInt(node.getAttribute("id"));
+          switch (id) {
+            case 1:
+              addon.type = "extension";
+              break;
+            case 2:
+              addon.type = "theme";
+              break;
+            case 3:
+              addon.type = "dictionary";
+              break;
+            case 4:
+              addon.type = "search";
+              break;
+            case 5:
+            case 6:
+              addon.type = "locale";
+              break;
+            case 7:
+              addon.type = "plugin";
+              break;
+            case 8:
+              addon.type = "api";
+              break;
+            case 9:
+              addon.type = "lightweight-theme";
+              break;
+            case 11:
+              addon.type = "webapp";
+              break;
+            default:
+              logger.info("Unknown type id " + id + " found when parsing response for GUID " + guid);
+          }
+          break;
+        case "authors":
+          let authorNodes = node.getElementsByTagName("author");
+          for (let authorNode of authorNodes) {
+            let name = this._getDescendantTextContent(authorNode, "name");
+            let link = this._getDescendantTextContent(authorNode, "link");
+            if (name == null || link == null)
+              continue;
+
+            let author = new AddonManagerPrivate.AddonAuthor(name, link);
+            if (addon.creator == null)
+              addon.creator = author;
+            else {
+              if (addon.developers == null)
+                addon.developers = [];
+
+              addon.developers.push(author);
+            }
+          }
+          break;
+        case "previews":
+          let previewNodes = node.getElementsByTagName("preview");
+          for (let previewNode of previewNodes) {
+            let full = this._getUniqueDescendant(previewNode, "full");
+            if (full == null)
+              continue;
+
+            let fullURL = this._getTextContent(full);
+            let fullWidth = full.getAttribute("width");
+            let fullHeight = full.getAttribute("height");
+
+            let thumbnailURL, thumbnailWidth, thumbnailHeight;
+            let thumbnail = this._getUniqueDescendant(previewNode, "thumbnail");
+            if (thumbnail) {
+              thumbnailURL = this._getTextContent(thumbnail);
+              thumbnailWidth = thumbnail.getAttribute("width");
+              thumbnailHeight = thumbnail.getAttribute("height");
+            }
+            let caption = this._getDescendantTextContent(previewNode, "caption");
+            let screenshot = new AddonManagerPrivate.AddonScreenshot(fullURL, fullWidth, fullHeight,
+                                                                     thumbnailURL, thumbnailWidth,
+                                                                     thumbnailHeight, caption);
+
+            if (addon.screenshots == null)
+              addon.screenshots = [];
+
+            if (previewNode.getAttribute("primary") == 1)
+              addon.screenshots.unshift(screenshot);
+            else
+              addon.screenshots.push(screenshot);
+          }
+          break;
+        case "learnmore":
+          addon.learnmoreURL = this._getTextContent(node);
+          addon.homepageURL = addon.homepageURL || addon.learnmoreURL;
+          break;
+        case "contribution_data":
+          let meetDevelopers = this._getDescendantTextContent(node, "meet_developers");
+          let suggestedAmount = this._getDescendantTextContent(node, "suggested_amount");
+          if (meetDevelopers != null) {
+            addon.contributionURL = meetDevelopers;
+            addon.contributionAmount = suggestedAmount;
+          }
+          break
+        case "payment_data":
+          let link = this._getDescendantTextContent(node, "link");
+          let amountTag = this._getUniqueDescendant(node, "amount");
+          let amount = parseFloat(amountTag.getAttribute("amount"));
+          let displayAmount = this._getTextContent(amountTag);
+          if (link != null && amount != null && displayAmount != null) {
+            addon.purchaseURL = link;
+            addon.purchaseAmount = amount;
+            addon.purchaseDisplayAmount = displayAmount;
+          }
+          break
+        case "rating":
+          let averageRating = parseInt(this._getTextContent(node));
+          if (averageRating >= 0)
+            addon.averageRating = Math.min(5, averageRating);
+          break;
+        case "reviews":
+          let url = this._getTextContent(node);
+          let num = parseInt(node.getAttribute("num"));
+          if (url != null && num >= 0) {
+            addon.reviewURL = url;
+            addon.reviewCount = num;
+          }
+          break;
+        case "status":
+          let repositoryStatus = parseInt(node.getAttribute("id"));
+          if (!isNaN(repositoryStatus))
+            addon.repositoryStatus = repositoryStatus;
+          break;
+        case "all_compatible_os":
+          let nodes = node.getElementsByTagName("os");
+          addon.isPlatformCompatible = Array.some(nodes, function(aNode) {
+            let text = aNode.textContent.toLowerCase().trim();
+            return text == "all" || text == Services.appinfo.OS.toLowerCase();
+          });
+          break;
+        case "install":
+          // No os attribute means the xpi is compatible with any os
+          if (node.hasAttribute("os")) {
+            let os = node.getAttribute("os").trim().toLowerCase();
+            // If the os is not ALL and not the current OS then ignore this xpi
+            if (os != "all" && os != Services.appinfo.OS.toLowerCase())
+              break;
+          }
+
+          let xpiURL = this._getTextContent(node);
+          if (xpiURL == null)
+            break;
+
+          if (skipSourceURIs.indexOf(xpiURL) != -1)
+            return null;
+
+          result.xpiURL = xpiURL;
+          addon.sourceURI = NetUtil.newURI(xpiURL);
+
+          let size = parseInt(node.getAttribute("size"));
+          addon.size = (size >= 0) ? size : null;
+
+          let xpiHash = node.getAttribute("hash");
+          if (xpiHash != null)
+            xpiHash = xpiHash.trim();
+          result.xpiHash = xpiHash ? xpiHash : null;
+          break;
+        case "last_updated":
+          let epoch = parseInt(node.getAttribute("epoch"));
+          if (!isNaN(epoch))
+            addon.updateDate = new Date(1000 * epoch);
+          break;
+        case "icon":
+          addon.icons[node.getAttribute("size")] = this._getTextContent(node);
+          break;
+      }
+    }
+
+    return result;
+  },
+
+  _parseAddons: function(aElements, aTotalResults, aSkip) {
+    let results = [];
+
+    let isSameApplication = aAppNode => this._getTextContent(aAppNode) == Services.appinfo.ID;
+
+    for (let i = 0; i < aElements.length && results.length < this._maxResults; i++) {
+      let element = aElements[i];
+
+      let tags = this._getUniqueDescendant(element, "compatible_applications");
+      if (tags == null)
+        continue;
+
+      let applications = tags.getElementsByTagName("appID");
+      let compatible = Array.some(applications, aAppNode => {
+        if (!isSameApplication(aAppNode))
+          return false;
+
+        let parent = aAppNode.parentNode;
+        let minVersion = this._getDescendantTextContent(parent, "min_version");
+        let maxVersion = this._getDescendantTextContent(parent, "max_version");
+        if (minVersion == null || maxVersion == null)
+          return false;
+
+        let currentVersion = Services.appinfo.version;
+        return (Services.vc.compare(minVersion, currentVersion) <= 0 &&
+                ((!AddonManager.strictCompatibility) ||
+                 Services.vc.compare(currentVersion, maxVersion) <= 0));
+      });
+
+      // Ignore add-ons not compatible with this Application
+      if (!compatible) {
+        if (AddonManager.checkCompatibility)
+          continue;
+
+        if (!Array.some(applications, isSameApplication))
+          continue;
+      }
+
+      // Add-on meets all requirements, so parse out data.
+      // Don't pass in compatiblity override data, because that's only returned
+      // in GUID searches, which don't use _parseAddons().
+      let result = this._parseAddon(element, aSkip);
+      if (result == null)
+        continue;
+
+      // Ignore add-on missing a required attribute
+      let requiredAttributes = ["id", "name", "version", "type", "creator"];
+      if (requiredAttributes.some(aAttribute => !result.addon[aAttribute]))
+        continue;
+
+      // Ignore add-on with a type AddonManager doesn't understand:
+      if (!(result.addon.type in AddonManager.addonTypes))
+        continue;
+
+      // Add only if the add-on is compatible with the platform
+      if (!result.addon.isPlatformCompatible)
+        continue;
+
+      // Add only if there was an xpi compatible with this OS or there was a
+      // way to purchase the add-on
+      if (!result.xpiURL && !result.addon.purchaseURL)
+        continue;
+
+      result.addon.isCompatible = compatible;
+
+      results.push(result);
+      // Ignore this add-on from now on by adding it to the skip array
+      aSkip.ids.push(result.addon.id);
+    }
+
+    // Immediately report success if no AddonInstall instances to create
+    let pendingResults = results.length;
+    if (pendingResults == 0) {
+      this._reportSuccess(results, aTotalResults);
+      return;
+    }
+
+    // Create an AddonInstall for each result
+    for (let result of results) {
+      let addon = result.addon;
+      let callback = aInstall => {
+        addon.install = aInstall;
+        pendingResults--;
+        if (pendingResults == 0)
+          this._reportSuccess(results, aTotalResults);
+      }
+
+      if (result.xpiURL) {
+        AddonManager.getInstallForURL(result.xpiURL, callback,
+                                      "application/x-xpinstall", result.xpiHash,
+                                      addon.name, addon.icons, addon.version);
+      }
+      else {
+        callback(null);
+      }
+    }
+  },
+
+  // Parses addon_compatibility nodes, that describe compatibility overrides.
+  _parseAddonCompatElement: function(aResultObj, aElement) {
+    let guid = this._getDescendantTextContent(aElement, "guid");
+    if (!guid) {
+        logger.debug("Compatibility override is missing guid.");
+      return;
+    }
+
+    let compat = {id: guid};
+    compat.hosted = aElement.getAttribute("hosted") != "false";
+
+    function findMatchingAppRange(aNodes) {
+      let toolkitAppRange = null;
+      for (let node of aNodes) {
+        let appID = this._getDescendantTextContent(node, "appID");
+        if (appID != Services.appinfo.ID && appID != TOOLKIT_ID)
+          continue;
+
+        let minVersion = this._getDescendantTextContent(node, "min_version");
+        let maxVersion = this._getDescendantTextContent(node, "max_version");
+        if (minVersion == null || maxVersion == null)
+          continue;
+
+        let appRange = { appID: appID,
+                         appMinVersion: minVersion,
+                         appMaxVersion: maxVersion };
+
+        // Only use Toolkit app ranges if no ranges match the application ID.
+        if (appID == TOOLKIT_ID)
+          toolkitAppRange = appRange;
+        else
+          return appRange;
+      }
+      return toolkitAppRange;
+    }
+
+    function parseRangeNode(aNode) {
+      let type = aNode.getAttribute("type");
+      // Only "incompatible" (blacklisting) is supported for now.
+      if (type != "incompatible") {
+        logger.debug("Compatibility override of unsupported type found.");
+        return null;
+      }
+
+      let override = new AddonManagerPrivate.AddonCompatibilityOverride(type);
+
+      override.minVersion = this._getDirectDescendantTextContent(aNode, "min_version");
+      override.maxVersion = this._getDirectDescendantTextContent(aNode, "max_version");
+
+      if (!override.minVersion) {
+        logger.debug("Compatibility override is missing min_version.");
+        return null;
+      }
+      if (!override.maxVersion) {
+        logger.debug("Compatibility override is missing max_version.");
+        return null;
+      }
+
+      let appRanges = aNode.querySelectorAll("compatible_applications > application");
+      let appRange = findMatchingAppRange.bind(this)(appRanges);
+      if (!appRange) {
+        logger.debug("Compatibility override is missing a valid application range.");
+        return null;
+      }
+
+      override.appID = appRange.appID;
+      override.appMinVersion = appRange.appMinVersion;
+      override.appMaxVersion = appRange.appMaxVersion;
+
+      return override;
+    }
+
+    let rangeNodes = aElement.querySelectorAll("version_ranges > version_range");
+    compat.compatRanges = Array.map(rangeNodes, parseRangeNode.bind(this))
+                               .filter(aItem => !!aItem);
+    if (compat.compatRanges.length == 0)
+      return;
+
+    aResultObj[compat.id] = compat;
+  },
+
+  // Parses addon_compatibility elements.
+  _parseAddonCompatData: function(aElements) {
+    let compatData = {};
+    Array.forEach(aElements, this._parseAddonCompatElement.bind(this, compatData));
+    return compatData;
+  },
+
+  // Begins a new search if one isn't currently executing
+  _beginSearch: function(aURI, aMaxResults, aCallback, aHandleResults, aTimeout) {
+    if (this._searching || aURI == null || aMaxResults <= 0) {
+      logger.warn("AddonRepository search failed: searching " + this._searching + " aURI " + aURI +
+                  " aMaxResults " + aMaxResults);
+      aCallback.searchFailed();
+      return;
+    }
+
+    this._searching = true;
+    this._callback = aCallback;
+    this._maxResults = aMaxResults;
+
+    logger.debug("Requesting " + aURI);
+
+    this._request = new ServiceRequest();
+    this._request.mozBackgroundRequest = true;
+    this._request.open("GET", aURI, true);
+    this._request.overrideMimeType("text/xml");
+    if (aTimeout) {
+      this._request.timeout = aTimeout;
+    }
+
+    this._request.addEventListener("error", aEvent => this._reportFailure(), false);
+    this._request.addEventListener("timeout", aEvent => this._reportFailure(), false);
+    this._request.addEventListener("load", aEvent => {
+      logger.debug("Got metadata search load event");
+      let request = aEvent.target;
+      let responseXML = request.responseXML;
+
+      if (!responseXML || responseXML.documentElement.namespaceURI == XMLURI_PARSE_ERROR ||
+          (request.status != 200 && request.status != 0)) {
+        this._reportFailure();
+        return;
+      }
+
+      let documentElement = responseXML.documentElement;
+      let elements = documentElement.getElementsByTagName("addon");
+      let totalResults = elements.length;
+      let parsedTotalResults = parseInt(documentElement.getAttribute("total_results"));
+      // Parsed value of total results only makes sense if >= elements.length
+      if (parsedTotalResults >= totalResults)
+        totalResults = parsedTotalResults;
+
+      let compatElements = documentElement.getElementsByTagName("addon_compatibility");
+      let compatData = this._parseAddonCompatData(compatElements);
+
+      aHandleResults(elements, totalResults, compatData);
+    }, false);
+    this._request.send(null);
+  },
+
+  // Gets the id's of local add-ons, and the sourceURI's of local installs,
+  // passing the results to aCallback
+  _getLocalAddonIds: function(aCallback) {
+    let localAddonIds = {ids: null, sourceURIs: null};
+
+    AddonManager.getAllAddons(function(aAddons) {
+      localAddonIds.ids = aAddons.map(a => a.id);
+      if (localAddonIds.sourceURIs)
+        aCallback(localAddonIds);
+    });
+
+    AddonManager.getAllInstalls(function(aInstalls) {
+      localAddonIds.sourceURIs = [];
+      for (let install of aInstalls) {
+        if (install.state != AddonManager.STATE_AVAILABLE)
+          localAddonIds.sourceURIs.push(install.sourceURI.spec);
+      }
+
+      if (localAddonIds.ids)
+        aCallback(localAddonIds);
+    });
+  },
+
+  // Create url from preference, returning null if preference does not exist
+  _formatURLPref: function(aPreference, aSubstitutions) {
+    let url = null;
+    try {
+      url = Services.prefs.getCharPref(aPreference);
+    } catch (e) {
+      logger.warn("_formatURLPref: Couldn't get pref: " + aPreference);
+      return null;
+    }
+
+    url = url.replace(/%([A-Z_]+)%/g, function(aMatch, aKey) {
+      return (aKey in aSubstitutions) ? aSubstitutions[aKey] : aMatch;
+    });
+
+    return Services.urlFormatter.formatURL(url);
+  },
+
+  // Find a AddonCompatibilityOverride that matches a given aAddonVersion and
+  // application/platform version.
+  findMatchingCompatOverride: function(aAddonVersion,
+                                                                     aCompatOverrides,
+                                                                     aAppVersion,
+                                                                     aPlatformVersion) {
+    for (let override of aCompatOverrides) {
+
+      let appVersion = null;
+      if (override.appID == TOOLKIT_ID)
+        appVersion = aPlatformVersion || Services.appinfo.platformVersion;
+      else
+        appVersion = aAppVersion || Services.appinfo.version;
+
+      if (Services.vc.compare(override.minVersion, aAddonVersion) <= 0 &&
+          Services.vc.compare(aAddonVersion, override.maxVersion) <= 0 &&
+          Services.vc.compare(override.appMinVersion, appVersion) <= 0 &&
+          Services.vc.compare(appVersion, override.appMaxVersion) <= 0) {
+        return override;
+      }
+    }
+    return null;
+  },
+
+  flush: function() {
+    return AddonDatabase.flush();
+  }
+};
+
+var AddonDatabase = {
+  connectionPromise: null,
+  // the in-memory database
+  DB: BLANK_DB(),
+
+  /**
+   * A getter to retrieve the path to the DB
+   */
+  get jsonFile() {
+    return OS.Path.join(OS.Constants.Path.profileDir, FILE_DATABASE);
+ },
+
+  /**
+   * Asynchronously opens a new connection to the database file.
+   *
+   * @return {Promise} a promise that resolves to the database.
+   */
+  openConnection: function() {
+    if (!this.connectionPromise) {
+     this.connectionPromise = Task.spawn(function*() {
+       this.DB = BLANK_DB();
+
+       let inputDB, schema;
+
+       try {
+         let data = yield OS.File.read(this.jsonFile, { encoding: "utf-8"})
+         inputDB = JSON.parse(data);
+
+         if (!inputDB.hasOwnProperty("addons") ||
+             !Array.isArray(inputDB.addons)) {
+           throw new Error("No addons array.");
+         }
+
+         if (!inputDB.hasOwnProperty("schema")) {
+           throw new Error("No schema specified.");
+         }
+
+         schema = parseInt(inputDB.schema, 10);
+
+         if (!Number.isInteger(schema) ||
+             schema < DB_MIN_JSON_SCHEMA) {
+           throw new Error("Invalid schema value.");
+         }
+       } catch (e) {
+         if (e instanceof OS.File.Error && e.becauseNoSuchFile) {
+           logger.debug("No " + FILE_DATABASE + " found.");
+         } else {
+           logger.error(`Malformed ${FILE_DATABASE}: ${e} - resetting to empty`);
+         }
+
+         // Create a blank addons.json file
+         this._saveDBToDisk();
+
+         let dbSchema = 0;
+         try {
+           dbSchema = Services.prefs.getIntPref(PREF_GETADDONS_DB_SCHEMA);
+         } catch (e) {}
+
+         if (dbSchema < DB_MIN_JSON_SCHEMA) {
+           let results = yield new Promise((resolve, reject) => {
+             AddonRepository_SQLiteMigrator.migrate(resolve);
+           });
+
+           if (results.length) {
+             yield this._insertAddons(results);
+           }
+
+         }
+
+         Services.prefs.setIntPref(PREF_GETADDONS_DB_SCHEMA, DB_SCHEMA);
+         return this.DB;
+       }
+
+       Services.prefs.setIntPref(PREF_GETADDONS_DB_SCHEMA, DB_SCHEMA);
+
+       // We use _insertAddon manually instead of calling
+       // insertAddons to avoid the write to disk which would
+       // be a waste since this is the data that was just read.
+       for (let addon of inputDB.addons) {
+         this._insertAddon(addon);
+       }
+
+       return this.DB;
+     }.bind(this));
+    }
+
+    return this.connectionPromise;
+  },
+
+  /**
+   * A lazy getter for the database connection.
+   */
+  get connection() {
+    return this.openConnection();
+  },
+
+  /**
+   * Asynchronously shuts down the database connection and releases all
+   * cached objects
+   *
+   * @param  aCallback
+   *         An optional callback to call once complete
+   * @param  aSkipFlush
+   *         An optional boolean to skip flushing data to disk. Useful
+   *         when the database is going to be deleted afterwards.
+   */
+  shutdown: function(aSkipFlush) {
+    if (!this.connectionPromise) {
+      return Promise.resolve();
+    }
+
+    this.connectionPromise = null;
+
+    if (aSkipFlush) {
+      return Promise.resolve();
+    }
+    return this.Writer.flush();
+  },
+
+  /**
+   * Asynchronously deletes the database, shutting down the connection
+   * first if initialized
+   *
+   * @param  aCallback
+   *         An optional callback to call once complete
+   * @return Promise{null} resolves when the database has been deleted
+   */
+  delete: function(aCallback) {
+    this.DB = BLANK_DB();
+
+    this._deleting = this.Writer.flush()
+      .then(null, () => {})
+      // shutdown(true) never rejects
+      .then(() => this.shutdown(true))
+      .then(() => OS.File.remove(this.jsonFile, {}))
+      .then(null, error => logger.error("Unable to delete Addon Repository file " +
+                                 this.jsonFile, error))
+      .then(() => this._deleting = null)
+      .then(aCallback);
+    return this._deleting;
+  },
+
+  toJSON: function() {
+    let json = {
+      schema: this.DB.schema,
+      addons: []
+    }
+
+    for (let [, value] of this.DB.addons)
+      json.addons.push(value);
+
+    return json;
+  },
+
+  /*
+   * This is a deferred task writer that is used
+   * to batch operations done within 50ms of each
+   * other and thus generating only one write to disk
+   */
+  get Writer() {
+    delete this.Writer;
+    this.Writer = new DeferredSave(
+      this.jsonFile,
+      () => { return JSON.stringify(this); },
+      DB_BATCH_TIMEOUT_MS
+    );
+    return this.Writer;
+  },
+
+  /**
+   * Flush any pending I/O on the addons.json file
+   * @return: Promise{null}
+   *          Resolves when the pending I/O (writing out or deleting
+   *          addons.json) completes
+   */
+  flush: function() {
+    if (this._deleting) {
+      return this._deleting;
+    }
+    return this.Writer.flush();
+  },
+
+  /**
+   * Asynchronously retrieve all add-ons from the database
+   * @return: Promise{Map}
+   *          Resolves when the add-ons are retrieved from the database
+   */
+  retrieveStoredData: function() {
+    return this.openConnection().then(db => db.addons);
+  },
+
+  /**
+   * Asynchronously repopulates the database so it only contains the
+   * specified add-ons
+   *
+   * @param  aAddons
+   *         The array of add-ons to repopulate the database with
+   * @param  aCallback
+   *         An optional callback to call once complete
+   */
+  repopulate: function(aAddons, aCallback) {
+    this.DB.addons.clear();
+    this.insertAddons(aAddons, function() {
+      let now = Math.round(Date.now() / 1000);
+      logger.debug("Cache repopulated, setting " + PREF_METADATA_LASTUPDATE + " to " + now);
+      Services.prefs.setIntPref(PREF_METADATA_LASTUPDATE, now);
+      if (aCallback)
+        aCallback();
+    });
+  },
+
+  /**
+   * Asynchronously inserts an array of add-ons into the database
+   *
+   * @param  aAddons
+   *         The array of add-ons to insert
+   * @param  aCallback
+   *         An optional callback to call once complete
+   */
+  insertAddons: Task.async(function*(aAddons, aCallback) {
+    yield this.openConnection();
+    yield this._insertAddons(aAddons, aCallback);
+  }),
+
+  _insertAddons: Task.async(function*(aAddons, aCallback) {
+    for (let addon of aAddons) {
+      this._insertAddon(addon);
+    }
+
+    yield this._saveDBToDisk();
+    aCallback && aCallback();
+  }),
+
+  /**
+   * Inserts an individual add-on into the database. If the add-on already
+   * exists in the database (by id), then the specified add-on will not be
+   * inserted.
+   *
+   * @param  aAddon
+   *         The add-on to insert into the database
+   * @param  aCallback
+   *         The callback to call once complete
+   */
+  _insertAddon: function(aAddon) {
+    let newAddon = this._parseAddon(aAddon);
+    if (!newAddon ||
+        !newAddon.id ||
+        this.DB.addons.has(newAddon.id))
+      return;
+
+    this.DB.addons.set(newAddon.id, newAddon);
+  },
+
+  /*
+   * Creates an AddonSearchResult by parsing an object structure
+   * retrieved from the DB JSON representation.
+   *
+   * @param  aObj
+   *         The object to parse
+   * @return Returns an AddonSearchResult object.
+   */
+  _parseAddon: function(aObj) {
+    if (aObj instanceof AddonSearchResult)
+      return aObj;
+
+    let id = aObj.id;
+    if (!aObj.id)
+      return null;
+
+    let addon = new AddonSearchResult(id);
+
+    for (let expectedProperty of Object.keys(AddonSearchResult.prototype)) {
+      if (!(expectedProperty in aObj) ||
+          typeof(aObj[expectedProperty]) === "function")
+        continue;
+
+      let value = aObj[expectedProperty];
+
+      try {
+        switch (expectedProperty) {
+          case "sourceURI":
+            addon.sourceURI = value ? NetUtil.newURI(value) :  null;
+            break;
+
+          case "creator":
+            addon.creator = value
+                            ? this._makeDeveloper(value)
+                            : null;
+            break;
+
+          case "updateDate":
+            addon.updateDate = value ? new Date(value) : null;
+            break;
+
+          case "developers":
+            if (!addon.developers) addon.developers = [];
+            for (let developer of value) {
+              addon.developers.push(this._makeDeveloper(developer));
+            }
+            break;
+
+          case "screenshots":
+            if (!addon.screenshots) addon.screenshots = [];
+            for (let screenshot of value) {
+              addon.screenshots.push(this._makeScreenshot(screenshot));
+            }
+            break;
+
+          case "compatibilityOverrides":
+            if (!addon.compatibilityOverrides) addon.compatibilityOverrides = [];
+            for (let override of value) {
+              addon.compatibilityOverrides.push(
+                this._makeCompatOverride(override)
+              );
+            }
+            break;
+
+          case "icons":
+            if (!addon.icons) addon.icons = {};
+            for (let size of Object.keys(aObj.icons)) {
+              addon.icons[size] = aObj.icons[size];
+            }
+            break;
+
+          case "iconURL":
+            break;
+
+          default:
+            addon[expectedProperty] = value;
+        }
+      } catch (ex) {
+        logger.warn("Error in parsing property value for " + expectedProperty + " | " + ex);
+      }
+
+      // delete property from obj to indicate we've already
+      // handled it. The remaining public properties will
+      // be stored separately and just passed through to
+      // be written back to the DB.
+      delete aObj[expectedProperty];
+    }
+
+    // Copy remaining properties to a separate object
+    // to prevent accidental access on downgraded versions.
+    // The properties will be merged in the same object
+    // prior to being written back through toJSON.
+    for (let remainingProperty of Object.keys(aObj)) {
+      switch (typeof(aObj[remainingProperty])) {
+        case "boolean":
+        case "number":
+        case "string":
+        case "object":
+          // these types are accepted
+          break;
+        default:
+          continue;
+      }
+
+      if (!remainingProperty.startsWith("_"))
+        addon._unsupportedProperties[remainingProperty] =
+          aObj[remainingProperty];
+    }
+
+    return addon;
+  },
+
+  /**
+   * Write the in-memory DB to disk, after waiting for
+   * the DB_BATCH_TIMEOUT_MS timeout.
+   *
+   * @return Promise A promise that resolves after the
+   *                 write to disk has completed.
+   */
+  _saveDBToDisk: function() {
+    return this.Writer.saveChanges().then(
+      null,
+      e => logger.error("SaveDBToDisk failed", e));
+  },
+
+  /**
+   * Make a developer object from a vanilla
+   * JS object from the JSON database
+   *
+   * @param  aObj
+   *         The JS object to use
+   * @return The created developer
+   */
+  _makeDeveloper: function(aObj) {
+    let name = aObj.name;
+    let url = aObj.url;
+    return new AddonManagerPrivate.AddonAuthor(name, url);
+  },
+
+  /**
+   * Make a screenshot object from a vanilla
+   * JS object from the JSON database
+   *
+   * @param  aObj
+   *         The JS object to use
+   * @return The created screenshot
+   */
+  _makeScreenshot: function(aObj) {
+    let url = aObj.url;
+    let width = aObj.width;
+    let height = aObj.height;
+    let thumbnailURL = aObj.thumbnailURL;
+    let thumbnailWidth = aObj.thumbnailWidth;
+    let thumbnailHeight = aObj.thumbnailHeight;
+    let caption = aObj.caption;
+    return new AddonManagerPrivate.AddonScreenshot(url, width, height, thumbnailURL,
+                                                   thumbnailWidth, thumbnailHeight, caption);
+  },
+
+  /**
+   * Make a CompatibilityOverride from a vanilla
+   * JS object from the JSON database
+   *
+   * @param  aObj
+   *         The JS object to use
+   * @return The created CompatibilityOverride
+   */
+  _makeCompatOverride: function(aObj) {
+    let type = aObj.type;
+    let minVersion = aObj.minVersion;
+    let maxVersion = aObj.maxVersion;
+    let appID = aObj.appID;
+    let appMinVersion = aObj.appMinVersion;
+    let appMaxVersion = aObj.appMaxVersion;
+    return new AddonManagerPrivate.AddonCompatibilityOverride(type,
+                                                              minVersion,
+                                                              maxVersion,
+                                                              appID,
+                                                              appMinVersion,
+                                                              appMaxVersion);
+  },
+};
diff --git a/toolkit/mozapps/webextensions/internal/AddonRepository_SQLiteMigrator.jsm b/toolkit/mozapps/webextensions/internal/AddonRepository_SQLiteMigrator.jsm
new file mode 100644
index 000000000..e3479643b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/AddonRepository_SQLiteMigrator.jsm
@@ -0,0 +1,522 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/AddonManager.jsm");
+/* globals AddonManagerPrivate*/
+Cu.import("resource://gre/modules/FileUtils.jsm");
+
+const KEY_PROFILEDIR  = "ProfD";
+const FILE_DATABASE   = "addons.sqlite";
+const LAST_DB_SCHEMA   = 4;
+
+// Add-on properties present in the columns of the database
+const PROP_SINGLE = ["id", "type", "name", "version", "creator", "description",
+                     "fullDescription", "developerComments", "eula",
+                     "homepageURL", "supportURL", "contributionURL",
+                     "contributionAmount", "averageRating", "reviewCount",
+                     "reviewURL", "totalDownloads", "weeklyDownloads",
+                     "dailyUsers", "sourceURI", "repositoryStatus", "size",
+                     "updateDate"];
+
+Cu.import("resource://gre/modules/Log.jsm");
+const LOGGER_ID = "addons.repository.sqlmigrator";
+
+// Create a new logger for use by the Addons Repository SQL Migrator
+// (Requires AddonManager.jsm)
+var logger = Log.repository.getLogger(LOGGER_ID);
+
+this.EXPORTED_SYMBOLS = ["AddonRepository_SQLiteMigrator"];
+
+
+this.AddonRepository_SQLiteMigrator = {
+
+  /**
+   * Migrates data from a previous SQLite version of the
+   * database to the JSON version.
+   *
+   * @param structFunctions an object that contains functions
+   *                        to create the various objects used
+   *                        in the new JSON format
+   * @param aCallback       A callback to be called when migration
+   *                        finishes, with the results in an array
+   * @returns bool          True if a migration will happen (DB was
+   *                        found and succesfully opened)
+   */
+  migrate: function(aCallback) {
+    if (!this._openConnection()) {
+      this._closeConnection();
+      aCallback([]);
+      return false;
+    }
+
+    logger.debug("Importing addon repository from previous " + FILE_DATABASE + " storage.");
+
+    this._retrieveStoredData((results) => {
+      this._closeConnection();
+      let resultArray = Object.keys(results).map(k => results[k]);
+      logger.debug(resultArray.length + " addons imported.")
+      aCallback(resultArray);
+    });
+
+    return true;
+  },
+
+  /**
+   * Synchronously opens a new connection to the database file.
+   *
+   * @return bool           Whether the DB was opened successfully.
+   */
+  _openConnection: function() {
+    delete this.connection;
+
+    let dbfile = FileUtils.getFile(KEY_PROFILEDIR, [FILE_DATABASE], true);
+    if (!dbfile.exists())
+      return false;
+
+    try {
+      this.connection = Services.storage.openUnsharedDatabase(dbfile);
+    } catch (e) {
+      return false;
+    }
+
+    this.connection.executeSimpleSQL("PRAGMA locking_mode = EXCLUSIVE");
+
+    // Any errors in here should rollback
+    try {
+      this.connection.beginTransaction();
+
+      switch (this.connection.schemaVersion) {
+        case 0:
+          return false;
+
+        case 1:
+          logger.debug("Upgrading database schema to version 2");
+          this.connection.executeSimpleSQL("ALTER TABLE screenshot ADD COLUMN width INTEGER");
+          this.connection.executeSimpleSQL("ALTER TABLE screenshot ADD COLUMN height INTEGER");
+          this.connection.executeSimpleSQL("ALTER TABLE screenshot ADD COLUMN thumbnailWidth INTEGER");
+          this.connection.executeSimpleSQL("ALTER TABLE screenshot ADD COLUMN thumbnailHeight INTEGER");
+        case 2:
+          logger.debug("Upgrading database schema to version 3");
+          this.connection.createTable("compatibility_override",
+                                      "addon_internal_id INTEGER, " +
+                                      "num INTEGER, " +
+                                      "type TEXT, " +
+                                      "minVersion TEXT, " +
+                                      "maxVersion TEXT, " +
+                                      "appID TEXT, " +
+                                      "appMinVersion TEXT, " +
+                                      "appMaxVersion TEXT, " +
+                                      "PRIMARY KEY (addon_internal_id, num)");
+        case 3:
+          logger.debug("Upgrading database schema to version 4");
+          this.connection.createTable("icon",
+                                      "addon_internal_id INTEGER, " +
+                                      "size INTEGER, " +
+                                      "url TEXT, " +
+                                      "PRIMARY KEY (addon_internal_id, size)");
+          this._createIndices();
+          this._createTriggers();
+          this.connection.schemaVersion = LAST_DB_SCHEMA;
+        case LAST_DB_SCHEMA:
+          break;
+        default:
+          return false;
+      }
+      this.connection.commitTransaction();
+    } catch (e) {
+      logger.error("Failed to open " + FILE_DATABASE + ". Data import will not happen.", e);
+      this.logSQLError(this.connection.lastError, this.connection.lastErrorString);
+      this.connection.rollbackTransaction();
+      return false;
+    }
+
+    return true;
+  },
+
+  _closeConnection: function() {
+    for (let key in this.asyncStatementsCache) {
+      let stmt = this.asyncStatementsCache[key];
+      stmt.finalize();
+    }
+    this.asyncStatementsCache = {};
+
+    if (this.connection)
+      this.connection.asyncClose();
+
+    delete this.connection;
+  },
+
+  /**
+   * Asynchronously retrieve all add-ons from the database, and pass it
+   * to the specified callback
+   *
+   * @param  aCallback
+   *         The callback to pass the add-ons back to
+   */
+  _retrieveStoredData: function(aCallback) {
+    let addons = {};
+
+    // Retrieve all data from the addon table
+    let getAllAddons = () => {
+      this.getAsyncStatement("getAllAddons").executeAsync({
+        handleResult: aResults => {
+          let row = null;
+          while ((row = aResults.getNextRow())) {
+            let internal_id = row.getResultByName("internal_id");
+            addons[internal_id] = this._makeAddonFromAsyncRow(row);
+          }
+        },
+
+        handleError: this.asyncErrorLogger,
+
+        handleCompletion: function(aReason) {
+          if (aReason != Ci.mozIStorageStatementCallback.REASON_FINISHED) {
+            logger.error("Error retrieving add-ons from database. Returning empty results");
+            aCallback({});
+            return;
+          }
+
+          getAllDevelopers();
+        }
+      });
+    }
+
+    // Retrieve all data from the developer table
+    let getAllDevelopers = () => {
+      this.getAsyncStatement("getAllDevelopers").executeAsync({
+        handleResult: aResults => {
+          let row = null;
+          while ((row = aResults.getNextRow())) {
+            let addon_internal_id = row.getResultByName("addon_internal_id");
+            if (!(addon_internal_id in addons)) {
+              logger.warn("Found a developer not linked to an add-on in database");
+              continue;
+            }
+
+            let addon = addons[addon_internal_id];
+            if (!addon.developers)
+              addon.developers = [];
+
+            addon.developers.push(this._makeDeveloperFromAsyncRow(row));
+          }
+        },
+
+        handleError: this.asyncErrorLogger,
+
+        handleCompletion: function(aReason) {
+          if (aReason != Ci.mozIStorageStatementCallback.REASON_FINISHED) {
+            logger.error("Error retrieving developers from database. Returning empty results");
+            aCallback({});
+            return;
+          }
+
+          getAllScreenshots();
+        }
+      });
+    }
+
+    // Retrieve all data from the screenshot table
+    let getAllScreenshots = () => {
+      this.getAsyncStatement("getAllScreenshots").executeAsync({
+        handleResult: aResults => {
+          let row = null;
+          while ((row = aResults.getNextRow())) {
+            let addon_internal_id = row.getResultByName("addon_internal_id");
+            if (!(addon_internal_id in addons)) {
+              logger.warn("Found a screenshot not linked to an add-on in database");
+              continue;
+            }
+
+            let addon = addons[addon_internal_id];
+            if (!addon.screenshots)
+              addon.screenshots = [];
+            addon.screenshots.push(this._makeScreenshotFromAsyncRow(row));
+          }
+        },
+
+        handleError: this.asyncErrorLogger,
+
+        handleCompletion: function(aReason) {
+          if (aReason != Ci.mozIStorageStatementCallback.REASON_FINISHED) {
+            logger.error("Error retrieving screenshots from database. Returning empty results");
+            aCallback({});
+            return;
+          }
+
+          getAllCompatOverrides();
+        }
+      });
+    }
+
+    let getAllCompatOverrides = () => {
+      this.getAsyncStatement("getAllCompatOverrides").executeAsync({
+        handleResult: aResults => {
+          let row = null;
+          while ((row = aResults.getNextRow())) {
+            let addon_internal_id = row.getResultByName("addon_internal_id");
+            if (!(addon_internal_id in addons)) {
+              logger.warn("Found a compatibility override not linked to an add-on in database");
+              continue;
+            }
+
+            let addon = addons[addon_internal_id];
+            if (!addon.compatibilityOverrides)
+              addon.compatibilityOverrides = [];
+            addon.compatibilityOverrides.push(this._makeCompatOverrideFromAsyncRow(row));
+          }
+        },
+
+        handleError: this.asyncErrorLogger,
+
+        handleCompletion: function(aReason) {
+          if (aReason != Ci.mozIStorageStatementCallback.REASON_FINISHED) {
+            logger.error("Error retrieving compatibility overrides from database. Returning empty results");
+            aCallback({});
+            return;
+          }
+
+          getAllIcons();
+        }
+      });
+    }
+
+    let getAllIcons = () => {
+      this.getAsyncStatement("getAllIcons").executeAsync({
+        handleResult: aResults => {
+          let row = null;
+          while ((row = aResults.getNextRow())) {
+            let addon_internal_id = row.getResultByName("addon_internal_id");
+            if (!(addon_internal_id in addons)) {
+              logger.warn("Found an icon not linked to an add-on in database");
+              continue;
+            }
+
+            let addon = addons[addon_internal_id];
+            let { size, url } = this._makeIconFromAsyncRow(row);
+            addon.icons[size] = url;
+            if (size == 32)
+              addon.iconURL = url;
+          }
+        },
+
+        handleError: this.asyncErrorLogger,
+
+        handleCompletion: function(aReason) {
+          if (aReason != Ci.mozIStorageStatementCallback.REASON_FINISHED) {
+            logger.error("Error retrieving icons from database. Returning empty results");
+            aCallback({});
+            return;
+          }
+
+          let returnedAddons = {};
+          for (let id in addons) {
+            let addon = addons[id];
+            returnedAddons[addon.id] = addon;
+          }
+          aCallback(returnedAddons);
+        }
+      });
+    }
+
+    // Begin asynchronous process
+    getAllAddons();
+  },
+
+  // A cache of statements that are used and need to be finalized on shutdown
+  asyncStatementsCache: {},
+
+  /**
+   * Gets a cached async statement or creates a new statement if it doesn't
+   * already exist.
+   *
+   * @param  aKey
+   *         A unique key to reference the statement
+   * @return a mozIStorageAsyncStatement for the SQL corresponding to the
+   *         unique key
+   */
+  getAsyncStatement: function(aKey) {
+    if (aKey in this.asyncStatementsCache)
+      return this.asyncStatementsCache[aKey];
+
+    let sql = this.queries[aKey];
+    try {
+      return this.asyncStatementsCache[aKey] = this.connection.createAsyncStatement(sql);
+    } catch (e) {
+      logger.error("Error creating statement " + aKey + " (" + sql + ")");
+      throw Components.Exception("Error creating statement " + aKey + " (" + sql + "): " + e,
+                                 e.result);
+    }
+  },
+
+  // The queries used by the database
+  queries: {
+    getAllAddons: "SELECT internal_id, id, type, name, version, " +
+                  "creator, creatorURL, description, fullDescription, " +
+                  "developerComments, eula, homepageURL, supportURL, " +
+                  "contributionURL, contributionAmount, averageRating, " +
+                  "reviewCount, reviewURL, totalDownloads, weeklyDownloads, " +
+                  "dailyUsers, sourceURI, repositoryStatus, size, updateDate " +
+                  "FROM addon",
+
+    getAllDevelopers: "SELECT addon_internal_id, name, url FROM developer " +
+                      "ORDER BY addon_internal_id, num",
+
+    getAllScreenshots: "SELECT addon_internal_id, url, width, height, " +
+                       "thumbnailURL, thumbnailWidth, thumbnailHeight, caption " +
+                       "FROM screenshot ORDER BY addon_internal_id, num",
+
+    getAllCompatOverrides: "SELECT addon_internal_id, type, minVersion, " +
+                           "maxVersion, appID, appMinVersion, appMaxVersion " +
+                           "FROM compatibility_override " +
+                           "ORDER BY addon_internal_id, num",
+
+    getAllIcons: "SELECT addon_internal_id, size, url FROM icon " +
+                 "ORDER BY addon_internal_id, size",
+  },
+
+  /**
+   * Make add-on structure from an asynchronous row.
+   *
+   * @param  aRow
+   *         The asynchronous row to use
+   * @return The created add-on
+   */
+  _makeAddonFromAsyncRow: function(aRow) {
+    // This is intentionally not an AddonSearchResult object in order
+    // to allow AddonDatabase._parseAddon to parse it, same as if it
+    // was read from the JSON database.
+
+    let addon = { icons: {} };
+
+    for (let prop of PROP_SINGLE) {
+      addon[prop] = aRow.getResultByName(prop)
+    }
+
+    return addon;
+  },
+
+  /**
+   * Make a developer from an asynchronous row
+   *
+   * @param  aRow
+   *         The asynchronous row to use
+   * @return The created developer
+   */
+  _makeDeveloperFromAsyncRow: function(aRow) {
+    let name = aRow.getResultByName("name");
+    let url = aRow.getResultByName("url")
+    return new AddonManagerPrivate.AddonAuthor(name, url);
+  },
+
+  /**
+   * Make a screenshot from an asynchronous row
+   *
+   * @param  aRow
+   *         The asynchronous row to use
+   * @return The created screenshot
+   */
+  _makeScreenshotFromAsyncRow: function(aRow) {
+    let url = aRow.getResultByName("url");
+    let width = aRow.getResultByName("width");
+    let height = aRow.getResultByName("height");
+    let thumbnailURL = aRow.getResultByName("thumbnailURL");
+    let thumbnailWidth = aRow.getResultByName("thumbnailWidth");
+    let thumbnailHeight = aRow.getResultByName("thumbnailHeight");
+    let caption = aRow.getResultByName("caption");
+    return new AddonManagerPrivate.AddonScreenshot(url, width, height, thumbnailURL,
+                                                   thumbnailWidth, thumbnailHeight, caption);
+  },
+
+  /**
+   * Make a CompatibilityOverride from an asynchronous row
+   *
+   * @param  aRow
+   *         The asynchronous row to use
+   * @return The created CompatibilityOverride
+   */
+  _makeCompatOverrideFromAsyncRow: function(aRow) {
+    let type = aRow.getResultByName("type");
+    let minVersion = aRow.getResultByName("minVersion");
+    let maxVersion = aRow.getResultByName("maxVersion");
+    let appID = aRow.getResultByName("appID");
+    let appMinVersion = aRow.getResultByName("appMinVersion");
+    let appMaxVersion = aRow.getResultByName("appMaxVersion");
+    return new AddonManagerPrivate.AddonCompatibilityOverride(type,
+                                                              minVersion,
+                                                              maxVersion,
+                                                              appID,
+                                                              appMinVersion,
+                                                              appMaxVersion);
+  },
+
+  /**
+   * Make an icon from an asynchronous row
+   *
+   * @param  aRow
+   *         The asynchronous row to use
+   * @return An object containing the size and URL of the icon
+   */
+  _makeIconFromAsyncRow: function(aRow) {
+    let size = aRow.getResultByName("size");
+    let url = aRow.getResultByName("url");
+    return { size: size, url: url };
+  },
+
+  /**
+   * A helper function to log an SQL error.
+   *
+   * @param  aError
+   *         The storage error code associated with the error
+   * @param  aErrorString
+   *         An error message
+   */
+  logSQLError: function(aError, aErrorString) {
+    logger.error("SQL error " + aError + ": " + aErrorString);
+  },
+
+  /**
+   * A helper function to log any errors that occur during async statements.
+   *
+   * @param  aError
+   *         A mozIStorageError to log
+   */
+  asyncErrorLogger: function(aError) {
+    logger.error("Async SQL error " + aError.result + ": " + aError.message);
+  },
+
+  /**
+   * Synchronously creates the triggers in the database.
+   */
+  _createTriggers: function() {
+    this.connection.executeSimpleSQL("DROP TRIGGER IF EXISTS delete_addon");
+    this.connection.executeSimpleSQL("CREATE TRIGGER delete_addon AFTER DELETE " +
+      "ON addon BEGIN " +
+      "DELETE FROM developer WHERE addon_internal_id=old.internal_id; " +
+      "DELETE FROM screenshot WHERE addon_internal_id=old.internal_id; " +
+      "DELETE FROM compatibility_override WHERE addon_internal_id=old.internal_id; " +
+      "DELETE FROM icon WHERE addon_internal_id=old.internal_id; " +
+      "END");
+  },
+
+  /**
+   * Synchronously creates the indices in the database.
+   */
+  _createIndices: function() {
+    this.connection.executeSimpleSQL("CREATE INDEX IF NOT EXISTS developer_idx " +
+                                     "ON developer (addon_internal_id)");
+    this.connection.executeSimpleSQL("CREATE INDEX IF NOT EXISTS screenshot_idx " +
+                                     "ON screenshot (addon_internal_id)");
+    this.connection.executeSimpleSQL("CREATE INDEX IF NOT EXISTS compatibility_override_idx " +
+                                     "ON compatibility_override (addon_internal_id)");
+    this.connection.executeSimpleSQL("CREATE INDEX IF NOT EXISTS icon_idx " +
+                                     "ON icon (addon_internal_id)");
+  }
+}
diff --git a/toolkit/mozapps/webextensions/internal/AddonTestUtils.jsm b/toolkit/mozapps/webextensions/internal/AddonTestUtils.jsm
new file mode 100644
index 000000000..6422929b1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/AddonTestUtils.jsm
@@ -0,0 +1,1231 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/* eslint "mozilla/no-aArgs": 1 */
+/* eslint "no-unused-vars": [2, {"args": "none", "varsIgnorePattern": "^(Cc|Ci|Cr|Cu|EXPORTED_SYMBOLS)$"}] */
+/* eslint "semi": [2, "always"] */
+/* eslint "valid-jsdoc": [2, {requireReturn: false}] */
+
+var EXPORTED_SYMBOLS = ["AddonTestUtils", "MockAsyncShutdown"];
+
+const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+const CERTDB_CONTRACTID = "@mozilla.org/security/x509certdb;1";
+const CERTDB_CID = Components.ID("{fb0bbc5c-452e-4783-b32c-80124693d871}");
+
+
+Cu.importGlobalProperties(["fetch", "TextEncoder"]);
+
+Cu.import("resource://gre/modules/AsyncShutdown.jsm");
+Cu.import("resource://gre/modules/FileUtils.jsm");
+Cu.import("resource://gre/modules/NetUtil.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/Task.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+const {EventEmitter} = Cu.import("resource://devtools/shared/event-emitter.js", {});
+const {OS} = Cu.import("resource://gre/modules/osfile.jsm", {});
+
+XPCOMUtils.defineLazyModuleGetter(this, "Extension",
+                                  "resource://gre/modules/Extension.jsm");
+
+XPCOMUtils.defineLazyServiceGetter(this, "rdfService",
+                                   "@mozilla.org/rdf/rdf-service;1", "nsIRDFService");
+XPCOMUtils.defineLazyServiceGetter(this, "uuidGen",
+                                   "@mozilla.org/uuid-generator;1", "nsIUUIDGenerator");
+
+
+XPCOMUtils.defineLazyGetter(this, "AppInfo", () => {
+  let AppInfo = {};
+  Cu.import("resource://testing-common/AppInfo.jsm", AppInfo);
+  return AppInfo;
+});
+
+
+const ArrayBufferInputStream = Components.Constructor(
+  "@mozilla.org/io/arraybuffer-input-stream;1",
+  "nsIArrayBufferInputStream", "setData");
+
+const nsFile = Components.Constructor(
+  "@mozilla.org/file/local;1",
+  "nsIFile", "initWithPath");
+
+const RDFXMLParser = Components.Constructor(
+  "@mozilla.org/rdf/xml-parser;1",
+  "nsIRDFXMLParser", "parseString");
+
+const RDFDataSource = Components.Constructor(
+  "@mozilla.org/rdf/datasource;1?name=in-memory-datasource",
+  "nsIRDFDataSource");
+
+const ZipReader = Components.Constructor(
+  "@mozilla.org/libjar/zip-reader;1",
+  "nsIZipReader", "open");
+
+const ZipWriter = Components.Constructor(
+  "@mozilla.org/zipwriter;1",
+  "nsIZipWriter", "open");
+
+
+// We need some internal bits of AddonManager
+var AMscope = Cu.import("resource://gre/modules/AddonManager.jsm", {});
+var {AddonManager, AddonManagerPrivate} = AMscope;
+
+
+// Mock out AddonManager's reference to the AsyncShutdown module so we can shut
+// down AddonManager from the test
+var MockAsyncShutdown = {
+  hook: null,
+  status: null,
+  profileBeforeChange: {
+    addBlocker: function(name, blocker, options) {
+      MockAsyncShutdown.hook = blocker;
+      MockAsyncShutdown.status = options.fetchState;
+    }
+  },
+  // We can use the real Barrier
+  Barrier: AsyncShutdown.Barrier,
+};
+
+AMscope.AsyncShutdown = MockAsyncShutdown;
+
+
+/**
+ * Escapes any occurances of &, ", < or > with XML entities.
+ *
+ * @param {string} str
+ *        The string to escape.
+ * @return {string} The escaped string.
+ */
+function escapeXML(str) {
+  let replacements = {"&": "&amp;", '"': "&quot;", "'": "&apos;", "<": "&lt;", ">": "&gt;"};
+  return String(str).replace(/[&"''<>]/g, m => replacements[m]);
+}
+
+/**
+ * A tagged template function which escapes any XML metacharacters in
+ * interpolated values.
+ *
+ * @param {Array<string>} strings
+ *        An array of literal strings extracted from the templates.
+ * @param {Array} values
+ *        An array of interpolated values extracted from the template.
+ * @returns {string}
+ *        The result of the escaped values interpolated with the literal
+ *        strings.
+ */
+function escaped(strings, ...values) {
+  let result = [];
+
+  for (let [i, string] of strings.entries()) {
+    result.push(string);
+    if (i < values.length)
+      result.push(escapeXML(values[i]));
+  }
+
+  return result.join("");
+}
+
+
+class AddonsList {
+  constructor(extensionsINI) {
+    this.multiprocessIncompatibleIDs = new Set();
+
+    if (!extensionsINI.exists()) {
+      this.extensions = [];
+      this.themes = [];
+      return;
+    }
+
+    let factory = Cc["@mozilla.org/xpcom/ini-parser-factory;1"]
+                  .getService(Ci.nsIINIParserFactory);
+
+    let parser = factory.createINIParser(extensionsINI);
+
+    function readDirectories(section) {
+      var dirs = [];
+      var keys = parser.getKeys(section);
+      for (let key of XPCOMUtils.IterStringEnumerator(keys)) {
+        let descriptor = parser.getString(section, key);
+
+        let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+        try {
+          file.persistentDescriptor = descriptor;
+        } catch (e) {
+          // Throws if the directory doesn't exist, we can ignore this since the
+          // platform will too.
+          continue;
+        }
+        dirs.push(file);
+      }
+      return dirs;
+    }
+
+    this.extensions = readDirectories("ExtensionDirs");
+    this.themes = readDirectories("ThemeDirs");
+
+    var keys = parser.getKeys("MultiprocessIncompatibleExtensions");
+    for (let key of XPCOMUtils.IterStringEnumerator(keys)) {
+      let id = parser.getString("MultiprocessIncompatibleExtensions", key);
+      this.multiprocessIncompatibleIDs.add(id);
+    }
+  }
+
+  hasItem(type, dir, id) {
+    var path = dir.clone();
+    path.append(id);
+
+    var xpiPath = dir.clone();
+    xpiPath.append(`${id}.xpi`);
+
+    return this[type].some(file => {
+      if (!file.exists())
+        throw new Error(`Non-existent path found in extensions.ini: ${file.path}`);
+
+      if (file.isDirectory())
+        return file.equals(path);
+      if (file.isFile())
+        return file.equals(xpiPath);
+      return false;
+    });
+  }
+
+  isMultiprocessIncompatible(id) {
+    return this.multiprocessIncompatibleIDs.has(id);
+  }
+
+  hasTheme(dir, id) {
+    return this.hasItem("themes", dir, id);
+  }
+
+  hasExtension(dir, id) {
+    return this.hasItem("extensions", dir, id);
+  }
+}
+
+var AddonTestUtils = {
+  addonIntegrationService: null,
+  addonsList: null,
+  appInfo: null,
+  extensionsINI: null,
+  testUnpacked: false,
+  useRealCertChecks: false,
+
+  init(testScope) {
+    this.testScope = testScope;
+
+    // Get the profile directory for tests to use.
+    this.profileDir = testScope.do_get_profile();
+
+    this.extensionsINI = this.profileDir.clone();
+    this.extensionsINI.append("extensions.ini");
+
+    // Register a temporary directory for the tests.
+    this.tempDir = this.profileDir.clone();
+    this.tempDir.append("temp");
+    this.tempDir.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+    this.registerDirectory("TmpD", this.tempDir);
+
+    // Create a replacement app directory for the tests.
+    const appDirForAddons = this.profileDir.clone();
+    appDirForAddons.append("appdir-addons");
+    appDirForAddons.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+    this.registerDirectory("XREAddonAppDir", appDirForAddons);
+
+
+    // Enable more extensive EM logging
+    Services.prefs.setBoolPref("extensions.logging.enabled", true);
+
+    // By default only load extensions from the profile install location
+    Services.prefs.setIntPref("extensions.enabledScopes", AddonManager.SCOPE_PROFILE);
+
+    // By default don't disable add-ons from any scope
+    Services.prefs.setIntPref("extensions.autoDisableScopes", 0);
+
+    // By default, don't cache add-ons in AddonRepository.jsm
+    Services.prefs.setBoolPref("extensions.getAddons.cache.enabled", false);
+
+    // Disable the compatibility updates window by default
+    Services.prefs.setBoolPref("extensions.showMismatchUI", false);
+
+    // Point update checks to the local machine for fast failures
+    Services.prefs.setCharPref("extensions.update.url", "http://127.0.0.1/updateURL");
+    Services.prefs.setCharPref("extensions.update.background.url", "http://127.0.0.1/updateBackgroundURL");
+    Services.prefs.setCharPref("extensions.blocklist.url", "http://127.0.0.1/blocklistURL");
+
+    // By default ignore bundled add-ons
+    Services.prefs.setBoolPref("extensions.installDistroAddons", false);
+
+    // By default don't check for hotfixes
+    Services.prefs.setCharPref("extensions.hotfix.id", "");
+
+    // Ensure signature checks are enabled by default
+    Services.prefs.setBoolPref("xpinstall.signatures.required", true);
+
+
+    // Write out an empty blocklist.xml file to the profile to ensure nothing
+    // is blocklisted by default
+    var blockFile = OS.Path.join(this.profileDir.path, "blocklist.xml");
+
+    var data = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
+               "<blocklist xmlns=\"http://www.mozilla.org/2006/addons-blocklist\">\n" +
+               "</blocklist>\n";
+
+    this.awaitPromise(OS.File.writeAtomic(blockFile, new TextEncoder().encode(data)));
+
+
+    // Make sure that a given path does not exist
+    function pathShouldntExist(file) {
+      if (file.exists()) {
+        throw new Error(`Test cleanup: path ${file.path} exists when it should not`);
+      }
+    }
+
+    testScope.do_register_cleanup(() => {
+      for (let file of this.tempXPIs) {
+        if (file.exists())
+          file.remove(false);
+      }
+
+      // Check that the temporary directory is empty
+      var dirEntries = this.tempDir.directoryEntries
+                           .QueryInterface(Ci.nsIDirectoryEnumerator);
+      var entries = [];
+      while (dirEntries.hasMoreElements())
+        entries.push(dirEntries.nextFile.leafName);
+      if (entries.length)
+        throw new Error(`Found unexpected files in temporary directory: ${entries.join(", ")}`);
+
+      dirEntries.close();
+
+      try {
+        appDirForAddons.remove(true);
+      } catch (ex) {
+        testScope.do_print(`Got exception removing addon app dir: ${ex}`);
+      }
+
+      // ensure no leftover files in the system addon upgrade location
+      let featuresDir = this.profileDir.clone();
+      featuresDir.append("features");
+      // upgrade directories will be in UUID folders under features/
+      let systemAddonDirs = [];
+      if (featuresDir.exists()) {
+        let featuresDirEntries = featuresDir.directoryEntries
+                                            .QueryInterface(Ci.nsIDirectoryEnumerator);
+        while (featuresDirEntries.hasMoreElements()) {
+          let entry = featuresDirEntries.getNext();
+          entry.QueryInterface(Components.interfaces.nsIFile);
+          systemAddonDirs.push(entry);
+        }
+
+        systemAddonDirs.map(dir => {
+          dir.append("stage");
+          pathShouldntExist(dir);
+        });
+      }
+
+      // ensure no leftover files in the user addon location
+      let testDir = this.profileDir.clone();
+      testDir.append("extensions");
+      testDir.append("trash");
+      pathShouldntExist(testDir);
+
+      testDir.leafName = "staged";
+      pathShouldntExist(testDir);
+
+      return this.promiseShutdownManager();
+    });
+  },
+
+  /**
+   * Helper to spin the event loop until a promise resolves or rejects
+   *
+   * @param {Promise} promise
+   *        The promise to wait on.
+   * @returns {*} The promise's resolution value.
+   * @throws The promise's rejection value, if it rejects.
+   */
+  awaitPromise(promise) {
+    let done = false;
+    let result;
+    let error;
+    promise.then(
+      val => { result = val; },
+      err => { error = err; }
+    ).then(() => {
+      done = true;
+    });
+
+    while (!done)
+      Services.tm.mainThread.processNextEvent(true);
+
+    if (error !== undefined)
+      throw error;
+    return result;
+  },
+
+  createAppInfo(ID, name, version, platformVersion = "1.0") {
+    AppInfo.updateAppInfo({
+      ID, name, version, platformVersion,
+      crashReporter: true,
+      extraProps: {
+        browserTabsRemoteAutostart: false,
+      },
+    });
+    this.appInfo = AppInfo.getAppInfo();
+  },
+
+  getManifestURI(file) {
+    if (file.isDirectory()) {
+      file.append("install.rdf");
+      if (file.exists()) {
+        return NetUtil.newURI(file);
+      }
+
+      file.leafName = "manifest.json";
+      if (file.exists())
+        return NetUtil.newURI(file);
+
+      throw new Error("No manifest file present");
+    }
+
+    let zip = ZipReader(file);
+    try {
+      let uri = NetUtil.newURI(file);
+
+      if (zip.hasEntry("install.rdf")) {
+        return NetUtil.newURI(`jar:${uri.spec}!/install.rdf`);
+      }
+
+      if (zip.hasEntry("manifest.json")) {
+        return NetUtil.newURI(`jar:${uri.spec}!/manifest.json`);
+      }
+
+      throw new Error("No manifest file present");
+    } finally {
+      zip.close();
+    }
+  },
+
+  getIDFromManifest: Task.async(function*(manifestURI) {
+    let body = yield fetch(manifestURI.spec);
+
+    if (manifestURI.spec.endsWith(".rdf")) {
+      let data = yield body.text();
+
+      let ds = new RDFDataSource();
+      new RDFXMLParser(ds, manifestURI, data);
+
+      let rdfID = ds.GetTarget(rdfService.GetResource("urn:mozilla:install-manifest"),
+                               rdfService.GetResource("http://www.mozilla.org/2004/em-rdf#id"),
+                               true);
+      return rdfID.QueryInterface(Ci.nsIRDFLiteral).Value;
+    }
+
+    let manifest = yield body.json();
+    try {
+      return manifest.applications.gecko.id;
+    } catch (e) {
+      // IDs for WebExtensions are extracted from the certificate when
+      // not present in the manifest, so just generate a random one.
+      return uuidGen.generateUUID().number;
+    }
+  }),
+
+  overrideCertDB() {
+    // Unregister the real database. This only works because the add-ons manager
+    // hasn't started up and grabbed the certificate database yet.
+    let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+    let factory = registrar.getClassObject(CERTDB_CID, Ci.nsIFactory);
+    registrar.unregisterFactory(CERTDB_CID, factory);
+
+    // Get the real DB
+    let realCertDB = factory.createInstance(null, Ci.nsIX509CertDB);
+
+
+    let verifyCert = Task.async(function*(file, result, cert, callback) {
+      if (result == Cr.NS_ERROR_SIGNED_JAR_NOT_SIGNED &&
+          !this.useRealCertChecks && callback.wrappedJSObject) {
+        // Bypassing XPConnect allows us to create a fake x509 certificate from JS
+        callback = callback.wrappedJSObject;
+
+        try {
+          let manifestURI = this.getManifestURI(file);
+
+          let id = yield this.getIDFromManifest(manifestURI);
+
+          let fakeCert = {commonName: id};
+
+          return [callback, Cr.NS_OK, fakeCert];
+        } catch (e) {
+          // If there is any error then just pass along the original results
+        } finally {
+          // Make sure to close the open zip file or it will be locked.
+          if (file.isFile())
+            Services.obs.notifyObservers(file, "flush-cache-entry", "cert-override");
+        }
+      }
+
+      return [callback, result, cert];
+    }).bind(this);
+
+
+    function FakeCertDB() {
+      for (let property of Object.keys(realCertDB)) {
+        if (property in this)
+          continue;
+
+        if (typeof realCertDB[property] == "function")
+          this[property] = realCertDB[property].bind(realCertDB);
+      }
+    }
+    FakeCertDB.prototype = {
+      openSignedAppFileAsync(root, file, callback) {
+        // First try calling the real cert DB
+        realCertDB.openSignedAppFileAsync(root, file, (result, zipReader, cert) => {
+          verifyCert(file.clone(), result, cert, callback)
+            .then(([callback, result, cert]) => {
+              callback.openSignedAppFileFinished(result, zipReader, cert);
+            });
+        });
+      },
+
+      verifySignedDirectoryAsync(root, dir, callback) {
+        // First try calling the real cert DB
+        realCertDB.verifySignedDirectoryAsync(root, dir, (result, cert) => {
+          verifyCert(dir.clone(), result, cert, callback)
+            .then(([callback, result, cert]) => {
+              callback.verifySignedDirectoryFinished(result, cert);
+            });
+        });
+      },
+
+      QueryInterface: XPCOMUtils.generateQI([Ci.nsIX509CertDB]),
+    };
+
+    let certDBFactory = XPCOMUtils.generateSingletonFactory(FakeCertDB);
+    registrar.registerFactory(CERTDB_CID, "CertDB",
+                              CERTDB_CONTRACTID, certDBFactory);
+  },
+
+  /**
+   * Starts up the add-on manager as if it was started by the application.
+   *
+   * @param {boolean} [appChanged = true]
+   *        An optional boolean parameter to simulate the case where the
+   *        application has changed version since the last run. If not passed it
+   *        defaults to true
+   * @returns {Promise}
+   *        Resolves when the add-on manager's startup has completed.
+   */
+  promiseStartupManager(appChanged = true) {
+    if (this.addonIntegrationService)
+      throw new Error("Attempting to startup manager that was already started.");
+
+    if (appChanged && this.extensionsINI.exists())
+      this.extensionsINI.remove(true);
+
+    this.addonIntegrationService = Cc["@mozilla.org/addons/integration;1"]
+          .getService(Ci.nsIObserver);
+
+    this.addonIntegrationService.observe(null, "addons-startup", null);
+
+    this.emit("addon-manager-started");
+
+    // Load the add-ons list as it was after extension registration
+    this.loadAddonsList();
+
+    return Promise.resolve();
+  },
+
+  promiseShutdownManager() {
+    if (!this.addonIntegrationService)
+      return Promise.resolve(false);
+
+    Services.obs.notifyObservers(null, "quit-application-granted", null);
+    return MockAsyncShutdown.hook()
+      .then(() => {
+        this.emit("addon-manager-shutdown");
+
+        this.addonIntegrationService = null;
+
+        // Load the add-ons list as it was after application shutdown
+        this.loadAddonsList();
+
+        // Clear any crash report annotations
+        this.appInfo.annotations = {};
+
+        // Force the XPIProvider provider to reload to better
+        // simulate real-world usage.
+        let XPIscope = Cu.import("resource://gre/modules/addons/XPIProvider.jsm");
+        // This would be cleaner if I could get it as the rejection reason from
+        // the AddonManagerInternal.shutdown() promise
+        let shutdownError = XPIscope.XPIProvider._shutdownError;
+
+        AddonManagerPrivate.unregisterProvider(XPIscope.XPIProvider);
+        Cu.unload("resource://gre/modules/addons/XPIProvider.jsm");
+
+        if (shutdownError)
+          throw shutdownError;
+
+        return true;
+      });
+  },
+
+  promiseRestartManager(newVersion) {
+    return this.promiseShutdownManager()
+      .then(() => {
+        if (newVersion)
+          this.appInfo.version = newVersion;
+
+        return this.promiseStartupManager(!!newVersion);
+      });
+  },
+
+  loadAddonsList() {
+    this.addonsList = new AddonsList(this.extensionsINI);
+  },
+
+  /**
+   * Creates an update.rdf structure as a string using for the update data passed.
+   *
+   * @param {Object} data
+   *        The update data as a JS object. Each property name is an add-on ID,
+   *        the property value is an array of each version of the add-on. Each
+   *        array value is a JS object containing the data for the version, at
+   *        minimum a "version" and "targetApplications" property should be
+   *        included to create a functional update manifest.
+   * @return {string} The update.rdf structure as a string.
+   */
+  createUpdateRDF(data) {
+    var rdf = '<?xml version="1.0"?>\n';
+    rdf += '<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"\n' +
+           '     xmlns:em="http://www.mozilla.org/2004/em-rdf#">\n';
+
+    for (let addon in data) {
+      rdf += escaped`  <Description about="urn:mozilla:extension:${addon}"><em:updates><Seq>\n`;
+
+      for (let versionData of data[addon]) {
+        rdf += '    <li><Description>\n';
+        rdf += this._writeProps(versionData, ["version", "multiprocessCompatible"],
+                                `      `);
+        for (let app of versionData.targetApplications || []) {
+          rdf += "      <em:targetApplication><Description>\n";
+          rdf += this._writeProps(app, ["id", "minVersion", "maxVersion", "updateLink", "updateHash"],
+                                  `        `);
+          rdf += "      </Description></em:targetApplication>\n";
+        }
+        rdf += '    </Description></li>\n';
+      }
+      rdf += '  </Seq></em:updates></Description>\n';
+    }
+    rdf += "</RDF>\n";
+
+    return rdf;
+  },
+
+  _writeProps(obj, props, indent = "  ") {
+    let items = [];
+    for (let prop of props) {
+      if (prop in obj)
+        items.push(escaped`${indent}<em:${prop}>${obj[prop]}</em:${prop}>\n`);
+    }
+    return items.join("");
+  },
+
+  _writeArrayProps(obj, props, indent = "  ") {
+    let items = [];
+    for (let prop of props) {
+      for (let val of obj[prop] || [])
+        items.push(escaped`${indent}<em:${prop}>${val}</em:${prop}>\n`);
+    }
+    return items.join("");
+  },
+
+  _writeLocaleStrings(data) {
+    let items = [];
+
+    items.push(this._writeProps(data, ["name", "description", "creator", "homepageURL"]));
+    items.push(this._writeArrayProps(data, ["developer", "translator", "contributor"]));
+
+    return items.join("");
+  },
+
+  createInstallRDF(data) {
+    var rdf = '<?xml version="1.0"?>\n';
+    rdf += '<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"\n' +
+           '     xmlns:em="http://www.mozilla.org/2004/em-rdf#">\n';
+
+    rdf += '<Description about="urn:mozilla:install-manifest">\n';
+
+    let props = ["id", "version", "type", "internalName", "updateURL", "updateKey",
+                 "optionsURL", "optionsType", "aboutURL", "iconURL", "icon64URL",
+                 "skinnable", "bootstrap", "unpack", "strictCompatibility",
+                 "multiprocessCompatible", "hasEmbeddedWebExtension"];
+    rdf += this._writeProps(data, props);
+
+    rdf += this._writeLocaleStrings(data);
+
+    for (let platform of data.targetPlatforms || [])
+      rdf += escaped`<em:targetPlatform>${platform}</em:targetPlatform>\n`;
+
+    for (let app of data.targetApplications || []) {
+      rdf += "<em:targetApplication><Description>\n";
+      rdf += this._writeProps(app, ["id", "minVersion", "maxVersion"]);
+      rdf += "</Description></em:targetApplication>\n";
+    }
+
+    for (let localized of data.localized || []) {
+      rdf += "<em:localized><Description>\n";
+      rdf += this._writeArrayProps(localized, ["locale"]);
+      rdf += this._writeLocaleStrings(localized);
+      rdf += "</Description></em:localized>\n";
+    }
+
+    for (let dep of data.dependencies || [])
+      rdf += escaped`<em:dependency><Description em:id="${dep}"/></em:dependency>\n`;
+
+    rdf += "</Description>\n</RDF>\n";
+    return rdf;
+  },
+
+  /**
+   * Recursively create all directories upto and including the given
+   * path, if they do not exist.
+   *
+   * @param {string} path The path of the directory to create.
+   * @returns {Promise} Resolves when all directories have been created.
+   */
+  recursiveMakeDir(path) {
+    let paths = [];
+    for (let lastPath; path != lastPath; lastPath = path, path = OS.Path.dirname(path))
+      paths.push(path);
+
+    return Promise.all(paths.reverse().map(path =>
+      OS.File.makeDir(path, {ignoreExisting: true}).catch(() => {})));
+  },
+
+  /**
+   * Writes the given data to a file in the given zip file.
+   *
+   * @param {string|nsIFile} zipFile
+   *        The zip file to write to.
+   * @param {Object} files
+   *        An object containing filenames and the data to write to the
+   *        corresponding paths in the zip file.
+   * @param {integer} [flags = 0]
+   *        Additional flags to open the file with.
+   */
+  writeFilesToZip(zipFile, files, flags = 0) {
+    if (typeof zipFile == "string")
+      zipFile = nsFile(zipFile);
+
+    var zipW = ZipWriter(zipFile, FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE | flags);
+
+    for (let [path, data] of Object.entries(files)) {
+      if (!(data instanceof ArrayBuffer))
+        data = new TextEncoder("utf-8").encode(data).buffer;
+
+      let stream = ArrayBufferInputStream(data, 0, data.byteLength);
+
+      // Note these files are being created in the XPI archive with date "0" which is 1970-01-01.
+      zipW.addEntryStream(path, 0, Ci.nsIZipWriter.COMPRESSION_NONE,
+                          stream, false);
+    }
+
+    zipW.close();
+  },
+
+  promiseWriteFilesToZip: Task.async(function*(zip, files, flags) {
+    yield this.recursiveMakeDir(OS.Path.dirname(zip));
+
+    this.writeFilesToZip(zip, files, flags);
+
+    return Promise.resolve(nsFile(zip));
+  }),
+
+  promiseWriteFilesToDir: Task.async(function*(dir, files) {
+    yield this.recursiveMakeDir(dir);
+
+    for (let [path, data] of Object.entries(files)) {
+      path = path.split("/");
+      let leafName = path.pop();
+
+      // Create parent directories, if necessary.
+      let dirPath = dir;
+      for (let subDir of path) {
+        dirPath = OS.Path.join(dirPath, subDir);
+        yield OS.Path.makeDir(dirPath, {ignoreExisting: true});
+      }
+
+      if (typeof data == "string")
+        data = new TextEncoder("utf-8").encode(data);
+
+      yield OS.File.writeAtomic(OS.Path.join(dirPath, leafName), data);
+    }
+
+    return nsFile(dir);
+  }),
+
+  promiseWriteFilesToExtension(dir, id, files, unpacked = this.testUnpacked) {
+    if (typeof files["install.rdf"] === "object")
+      files["install.rdf"] = this.createInstallRDF(files["install.rdf"]);
+
+    if (unpacked) {
+      let path = OS.Path.join(dir, id);
+
+      return this.promiseWriteFilesToDir(path, files);
+    }
+
+    let xpi = OS.Path.join(dir, `${id}.xpi`);
+
+    return this.promiseWriteFilesToZip(xpi, files);
+  },
+
+  tempXPIs: [],
+  /**
+   * Creates an XPI file for some manifest data in the temporary directory and
+   * returns the nsIFile for it. The file will be deleted when the test completes.
+   *
+   * @param {object} files
+   *          The object holding data about the add-on
+   * @return {nsIFile} A file pointing to the created XPI file
+   */
+  createTempXPIFile(files) {
+    var file = this.tempDir.clone();
+    let uuid = uuidGen.generateUUID().number.slice(1, -1);
+    file.append(`${uuid}.xpi`);
+
+    this.tempXPIs.push(file);
+
+    if (typeof files["install.rdf"] === "object")
+      files["install.rdf"] = this.createInstallRDF(files["install.rdf"]);
+
+    this.writeFilesToZip(file.path, files);
+    return file;
+  },
+
+  /**
+   * Creates an XPI file for some WebExtension data in the temporary directory and
+   * returns the nsIFile for it. The file will be deleted when the test completes.
+   *
+   * @param {Object} data
+   *        The object holding data about the add-on, as expected by
+   *        |Extension.generateXPI|.
+   * @return {nsIFile} A file pointing to the created XPI file
+   */
+  createTempWebExtensionFile(data) {
+    let file = Extension.generateXPI(data);
+    this.tempXPIs.push(file);
+    return file;
+  },
+
+  /**
+   * Creates an extension proxy file.
+   * See: https://developer.mozilla.org/en-US/Add-ons/Setting_up_extension_development_environment#Firefox_extension_proxy_file
+   *
+   * @param {nsIFile} dir
+   *        The directory to add the proxy file to.
+   * @param {nsIFile} addon
+   *        An nsIFile for the add-on file that this is a proxy file for.
+   * @param {string} id
+   *        A string to use for the add-on ID.
+   * @returns {Promise} Resolves when the file has been created.
+   */
+  promiseWriteProxyFileToDir(dir, addon, id) {
+    let files = {
+      [id]: addon.path,
+    };
+
+    return this.promiseWriteFilesToDir(dir.path, files);
+  },
+
+  /**
+   * Manually installs an XPI file into an install location by either copying the
+   * XPI there or extracting it depending on whether unpacking is being tested
+   * or not.
+   *
+   * @param {nsIFile} xpiFile
+   *        The XPI file to install.
+   * @param {nsIFile} installLocation
+   *        The install location (an nsIFile) to install into.
+   * @param {string} id
+   *        The ID to install as.
+   * @param {boolean} [unpacked = this.testUnpacked]
+   *        If true, install as an unpacked directory, rather than a
+   *        packed XPI.
+   * @returns {nsIFile}
+   *        A file pointing to the installed location of the XPI file or
+   *        unpacked directory.
+   */
+  manuallyInstall(xpiFile, installLocation, id, unpacked = this.testUnpacked) {
+    if (unpacked) {
+      let dir = installLocation.clone();
+      dir.append(id);
+      dir.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+
+      let zip = ZipReader(xpiFile);
+      let entries = zip.findEntries(null);
+      while (entries.hasMore()) {
+        let entry = entries.getNext();
+        let target = dir.clone();
+        for (let part of entry.split("/"))
+          target.append(part);
+        zip.extract(entry, target);
+      }
+      zip.close();
+
+      return dir;
+    }
+
+    let target = installLocation.clone();
+    target.append(`${id}.xpi`);
+    xpiFile.copyTo(target.parent, target.leafName);
+    return target;
+  },
+
+  /**
+   * Manually uninstalls an add-on by removing its files from the install
+   * location.
+   *
+   * @param {nsIFile} installLocation
+   *        The nsIFile of the install location to remove from.
+   * @param {string} id
+   *        The ID of the add-on to remove.
+   * @param {boolean} [unpacked = this.testUnpacked]
+   *        If true, uninstall an unpacked directory, rather than a
+   *        packed XPI.
+   */
+  manuallyUninstall(installLocation, id, unpacked = this.testUnpacked) {
+    let file = this.getFileForAddon(installLocation, id, unpacked);
+
+    // In reality because the app is restarted a flush isn't necessary for XPIs
+    // removed outside the app, but for testing we must flush manually.
+    if (file.isFile())
+      Services.obs.notifyObservers(file, "flush-cache-entry", null);
+
+    file.remove(true);
+  },
+
+  /**
+   * Gets the nsIFile for where an add-on is installed. It may point to a file or
+   * a directory depending on whether add-ons are being installed unpacked or not.
+   *
+   * @param {nsIFile} dir
+   *         The nsIFile for the install location
+   * @param {string} id
+   *        The ID of the add-on
+   * @param {boolean} [unpacked = this.testUnpacked]
+   *        If true, return the path to an unpacked directory, rather than a
+   *        packed XPI.
+   * @returns {nsIFile}
+   *        A file pointing to the XPI file or unpacked directory where
+   *        the add-on should be installed.
+   */
+  getFileForAddon(dir, id, unpacked = this.testUnpacked) {
+    dir = dir.clone();
+    if (unpacked)
+      dir.append(id);
+    else
+      dir.append(`${id}.xpi`);
+    return dir;
+  },
+
+  /**
+   * Sets the last modified time of the extension, usually to trigger an update
+   * of its metadata. If the extension is unpacked, this function assumes that
+   * the extension contains only the install.rdf file.
+   *
+   * @param {nsIFile} ext A file pointing to either the packed extension or its unpacked directory.
+   * @param {number} time The time to which we set the lastModifiedTime of the extension
+   *
+   * @deprecated Please use promiseSetExtensionModifiedTime instead
+   */
+  setExtensionModifiedTime(ext, time) {
+    ext.lastModifiedTime = time;
+    if (ext.isDirectory()) {
+      let entries = ext.directoryEntries
+                       .QueryInterface(Ci.nsIDirectoryEnumerator);
+      while (entries.hasMoreElements())
+        this.setExtensionModifiedTime(entries.nextFile, time);
+      entries.close();
+    }
+  },
+
+  promiseSetExtensionModifiedTime: Task.async(function*(path, time) {
+    yield OS.File.setDates(path, time, time);
+
+    let iterator = new OS.File.DirectoryIterator(path);
+    try {
+      yield iterator.forEach(entry => {
+        return this.promiseSetExtensionModifiedTime(entry.path, time);
+      });
+    } catch (ex) {
+      if (ex instanceof OS.File.Error)
+        return;
+      throw ex;
+    } finally {
+      iterator.close().catch(() => {});
+    }
+  }),
+
+  registerDirectory(key, dir) {
+    var dirProvider = {
+      getFile(prop, persistent) {
+        persistent.value = false;
+        if (prop == key)
+          return dir.clone();
+        return null;
+      },
+
+      QueryInterface: XPCOMUtils.generateQI([Ci.nsIDirectoryServiceProvider]),
+    };
+    Services.dirsvc.registerProvider(dirProvider);
+  },
+
+  /**
+   * Returns a promise that resolves when the given add-on event is fired. The
+   * resolved value is an array of arguments passed for the event.
+   *
+   * @param {string} event
+   *        The name of the AddonListener event handler method for which
+   *        an event is expected.
+   * @returns {Promise<Array>}
+   *        Resolves to an array containing the event handler's
+   *        arguments the first time it is called.
+   */
+  promiseAddonEvent(event) {
+    return new Promise(resolve => {
+      let listener = {
+        [event](...args) {
+          AddonManager.removeAddonListener(listener);
+          resolve(args);
+        },
+      };
+
+      AddonManager.addAddonListener(listener);
+    });
+  },
+
+  /**
+   * A helper method to install AddonInstall and wait for completion.
+   *
+   * @param {AddonInstall} install
+   *        The add-on to install.
+   * @returns {Promise}
+   *        Resolves when the install completes, either successfully or
+   *        in failure.
+   */
+  promiseCompleteInstall(install) {
+    let listener;
+    return new Promise(resolve => {
+      listener = {
+        onDownloadFailed: resolve,
+        onDownloadCancelled: resolve,
+        onInstallFailed: resolve,
+        onInstallCancelled: resolve,
+        onInstallEnded: resolve,
+        onInstallPostponed: resolve,
+      };
+
+      install.addListener(listener);
+      install.install();
+    }).then(() => {
+      install.removeListener(listener);
+    });
+  },
+
+  /**
+   * A helper method to install a file.
+   *
+   * @param {nsIFile} file
+   *        The file to install
+   * @param {boolean} [ignoreIncompatible = false]
+   *        Optional parameter to ignore add-ons that are incompatible
+   *        with the application
+   * @returns {Promise}
+   *        Resolves when the install has completed.
+   */
+  promiseInstallFile(file, ignoreIncompatible = false) {
+    return new Promise((resolve, reject) => {
+      AddonManager.getInstallForFile(file, install => {
+        if (!install)
+          reject(new Error(`No AddonInstall created for ${file.path}`));
+        else if (install.state != AddonManager.STATE_DOWNLOADED)
+          reject(new Error(`Expected file to be downloaded for install of ${file.path}`));
+        else if (ignoreIncompatible && install.addon.appDisabled)
+          resolve();
+        else
+          resolve(this.promiseCompleteInstall(install));
+      });
+    });
+  },
+
+  /**
+   * A helper method to install an array of files.
+   *
+   * @param {Iterable<nsIFile>} files
+   *        The files to install
+   * @param {boolean} [ignoreIncompatible = false]
+   *        Optional parameter to ignore add-ons that are incompatible
+   *        with the application
+   * @returns {Promise}
+   *        Resolves when the installs have completed.
+   */
+  promiseInstallAllFiles(files, ignoreIncompatible = false) {
+    return Promise.all(Array.from(
+      files,
+      file => this.promiseInstallFile(file, ignoreIncompatible)));
+  },
+
+  promiseCompleteAllInstalls(installs) {
+    return Promise.all(Array.from(installs, this.promiseCompleteInstall));
+  },
+
+  /**
+   * A promise-based variant of AddonManager.getAddonsByIDs.
+   *
+   * @param {Array<string>} list
+   *        As the first argument of AddonManager.getAddonsByIDs
+   * @return {Promise<Array<Addon>>}
+   *        Resolves to the array of add-ons for the given IDs.
+   */
+  promiseAddonsByIDs(list) {
+    return new Promise(resolve => AddonManager.getAddonsByIDs(list, resolve));
+  },
+
+  /**
+   * A promise-based variant of AddonManager.getAddonByID.
+   *
+   * @param {string} id
+   *        The ID of the add-on.
+   * @return {Promise<Addon>}
+   *        Resolves to the add-on with the given ID.
+   */
+  promiseAddonByID(id) {
+    return new Promise(resolve => AddonManager.getAddonByID(id, resolve));
+  },
+
+  /**
+   * Returns a promise that will be resolved when an add-on update check is
+   * complete. The value resolved will be an AddonInstall if a new version was
+   * found.
+   *
+   * @param {object} addon The add-on to find updates for.
+   * @param {integer} reason The type of update to find.
+   * @return {Promise<object>} an object containing information about the update.
+   */
+  promiseFindAddonUpdates(addon, reason = AddonManager.UPDATE_WHEN_PERIODIC_UPDATE) {
+    let equal = this.testScope.equal;
+    return new Promise((resolve, reject) => {
+      let result = {};
+      addon.findUpdates({
+        onNoCompatibilityUpdateAvailable: function(addon2) {
+          if ("compatibilityUpdate" in result) {
+            throw new Error("Saw multiple compatibility update events");
+          }
+          equal(addon, addon2, "onNoCompatibilityUpdateAvailable");
+          result.compatibilityUpdate = false;
+        },
+
+        onCompatibilityUpdateAvailable: function(addon2) {
+          if ("compatibilityUpdate" in result) {
+            throw new Error("Saw multiple compatibility update events");
+          }
+          equal(addon, addon2, "onCompatibilityUpdateAvailable");
+          result.compatibilityUpdate = true;
+        },
+
+        onNoUpdateAvailable: function(addon2) {
+          if ("updateAvailable" in result) {
+            throw new Error("Saw multiple update available events");
+          }
+          equal(addon, addon2, "onNoUpdateAvailable");
+          result.updateAvailable = false;
+        },
+
+        onUpdateAvailable: function(addon2, install) {
+          if ("updateAvailable" in result) {
+            throw new Error("Saw multiple update available events");
+          }
+          equal(addon, addon2, "onUpdateAvailable");
+          result.updateAvailable = install;
+        },
+
+        onUpdateFinished: function(addon2, error) {
+          equal(addon, addon2, "onUpdateFinished");
+          if (error == AddonManager.UPDATE_STATUS_NO_ERROR) {
+            resolve(result);
+          } else {
+            result.error = error;
+            reject(result);
+          }
+        }
+      }, reason);
+    });
+  },
+
+  /**
+   * A promise-based variant of AddonManager.getAddonsWithOperationsByTypes
+   *
+   * @param {Array<string>} types
+   *        The first argument to AddonManager.getAddonsWithOperationsByTypes
+   * @return {Promise<Array<Addon>>}
+   *        Resolves to an array of add-ons with the given operations
+   *        pending.
+   */
+  promiseAddonsWithOperationsByTypes(types) {
+    return new Promise(resolve => AddonManager.getAddonsWithOperationsByTypes(types, resolve));
+  },
+
+  /**
+   * Monitors console output for the duration of a task, and returns a promise
+   * which resolves to a tuple containing a list of all console messages
+   * generated during the task's execution, and the result of the task itself.
+   *
+   * @param {function} task
+   *        The task to run while monitoring console output. May be
+   *        either a generator function, per Task.jsm, or an ordinary
+   *        function which returns promose.
+   * @return {Promise<[Array<nsIConsoleMessage>, *]>}
+   *        Resolves to an object containing a `messages` property, with
+   *        the array of console messages emitted during the execution
+   *        of the task, and a `result` property, containing the task's
+   *        return value.
+   */
+  promiseConsoleOutput: Task.async(function*(task) {
+    const DONE = "=== xpcshell test console listener done ===";
+
+    let listener, messages = [];
+    let awaitListener = new Promise(resolve => {
+      listener = msg => {
+        if (msg == DONE) {
+          resolve();
+        } else {
+          msg instanceof Ci.nsIScriptError;
+          messages.push(msg);
+        }
+      };
+    });
+
+    Services.console.registerListener(listener);
+    try {
+      let result = yield task();
+
+      Services.console.logStringMessage(DONE);
+      yield awaitListener;
+
+      return {messages, result};
+    } finally {
+      Services.console.unregisterListener(listener);
+    }
+  }),
+};
+
+for (let [key, val] of Object.entries(AddonTestUtils)) {
+  if (typeof val == "function")
+    AddonTestUtils[key] = val.bind(AddonTestUtils);
+}
+
+EventEmitter.decorate(AddonTestUtils);
diff --git a/toolkit/mozapps/webextensions/internal/AddonUpdateChecker.jsm b/toolkit/mozapps/webextensions/internal/AddonUpdateChecker.jsm
new file mode 100644
index 000000000..63c16737c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/AddonUpdateChecker.jsm
@@ -0,0 +1,934 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * The AddonUpdateChecker is responsible for retrieving the update information
+ * from an add-on's remote update manifest.
+ */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+
+this.EXPORTED_SYMBOLS = [ "AddonUpdateChecker" ];
+
+const TIMEOUT               = 60 * 1000;
+const PREFIX_NS_RDF         = "http://www.w3.org/1999/02/22-rdf-syntax-ns#";
+const PREFIX_NS_EM          = "http://www.mozilla.org/2004/em-rdf#";
+const PREFIX_ITEM           = "urn:mozilla:item:";
+const PREFIX_EXTENSION      = "urn:mozilla:extension:";
+const PREFIX_THEME          = "urn:mozilla:theme:";
+const TOOLKIT_ID            = "toolkit@mozilla.org"
+const XMLURI_PARSE_ERROR    = "http://www.mozilla.org/newlayout/xml/parsererror.xml"
+
+const PREF_UPDATE_REQUIREBUILTINCERTS = "extensions.update.requireBuiltInCerts";
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "AddonManager",
+                                  "resource://gre/modules/AddonManager.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AddonManagerPrivate",
+                                  "resource://gre/modules/AddonManager.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AddonRepository",
+                                  "resource://gre/modules/addons/AddonRepository.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ServiceRequest",
+                                  "resource://gre/modules/ServiceRequest.jsm");
+
+
+// Shared code for suppressing bad cert dialogs.
+XPCOMUtils.defineLazyGetter(this, "CertUtils", function() {
+  let certUtils = {};
+  Components.utils.import("resource://gre/modules/CertUtils.jsm", certUtils);
+  return certUtils;
+});
+
+var gRDF = Cc["@mozilla.org/rdf/rdf-service;1"].
+           getService(Ci.nsIRDFService);
+
+Cu.import("resource://gre/modules/Log.jsm");
+const LOGGER_ID = "addons.update-checker";
+
+// Create a new logger for use by the Addons Update Checker
+// (Requires AddonManager.jsm)
+var logger = Log.repository.getLogger(LOGGER_ID);
+
+/**
+ * A serialisation method for RDF data that produces an identical string
+ * for matching RDF graphs.
+ * The serialisation is not complete, only assertions stemming from a given
+ * resource are included, multiple references to the same resource are not
+ * permitted, and the RDF prolog and epilog are not included.
+ * RDF Blob and Date literals are not supported.
+ */
+function RDFSerializer() {
+  this.cUtils = Cc["@mozilla.org/rdf/container-utils;1"].
+                getService(Ci.nsIRDFContainerUtils);
+  this.resources = [];
+}
+
+RDFSerializer.prototype = {
+  INDENT: "  ",      // The indent used for pretty-printing
+  resources: null,   // Array of the resources that have been found
+
+  /**
+   * Escapes characters from a string that should not appear in XML.
+   *
+   * @param  aString
+   *         The string to be escaped
+   * @return a string with all characters invalid in XML character data
+   *         converted to entity references.
+   */
+  escapeEntities: function(aString) {
+    aString = aString.replace(/&/g, "&amp;");
+    aString = aString.replace(/</g, "&lt;");
+    aString = aString.replace(/>/g, "&gt;");
+    return aString.replace(/"/g, "&quot;");
+  },
+
+  /**
+   * Serializes all the elements of an RDF container.
+   *
+   * @param  aDs
+   *         The RDF datasource
+   * @param  aContainer
+   *         The RDF container to output the child elements of
+   * @param  aIndent
+   *         The current level of indent for pretty-printing
+   * @return a string containing the serialized elements.
+   */
+  serializeContainerItems: function(aDs, aContainer, aIndent) {
+    var result = "";
+    var items = aContainer.GetElements();
+    while (items.hasMoreElements()) {
+      var item = items.getNext().QueryInterface(Ci.nsIRDFResource);
+      result += aIndent + "<RDF:li>\n"
+      result += this.serializeResource(aDs, item, aIndent + this.INDENT);
+      result += aIndent + "</RDF:li>\n"
+    }
+    return result;
+  },
+
+  /**
+   * Serializes all em:* (see EM_NS) properties of an RDF resource except for
+   * the em:signature property. As this serialization is to be compared against
+   * the manifest signature it cannot contain the em:signature property itself.
+   *
+   * @param  aDs
+   *         The RDF datasource
+   * @param  aResource
+   *         The RDF resource that contains the properties to serialize
+   * @param  aIndent
+   *         The current level of indent for pretty-printing
+   * @return a string containing the serialized properties.
+   * @throws if the resource contains a property that cannot be serialized
+   */
+  serializeResourceProperties: function(aDs, aResource, aIndent) {
+    var result = "";
+    var items = [];
+    var arcs = aDs.ArcLabelsOut(aResource);
+    while (arcs.hasMoreElements()) {
+      var arc = arcs.getNext().QueryInterface(Ci.nsIRDFResource);
+      if (arc.ValueUTF8.substring(0, PREFIX_NS_EM.length) != PREFIX_NS_EM)
+        continue;
+      var prop = arc.ValueUTF8.substring(PREFIX_NS_EM.length);
+      if (prop == "signature")
+        continue;
+
+      var targets = aDs.GetTargets(aResource, arc, true);
+      while (targets.hasMoreElements()) {
+        var target = targets.getNext();
+        if (target instanceof Ci.nsIRDFResource) {
+          var item = aIndent + "<em:" + prop + ">\n";
+          item += this.serializeResource(aDs, target, aIndent + this.INDENT);
+          item += aIndent + "</em:" + prop + ">\n";
+          items.push(item);
+        }
+        else if (target instanceof Ci.nsIRDFLiteral) {
+          items.push(aIndent + "<em:" + prop + ">" +
+                     this.escapeEntities(target.Value) + "</em:" + prop + ">\n");
+        }
+        else if (target instanceof Ci.nsIRDFInt) {
+          items.push(aIndent + "<em:" + prop + " NC:parseType=\"Integer\">" +
+                     target.Value + "</em:" + prop + ">\n");
+        }
+        else {
+          throw Components.Exception("Cannot serialize unknown literal type");
+        }
+      }
+    }
+    items.sort();
+    result += items.join("");
+    return result;
+  },
+
+  /**
+   * Recursively serializes an RDF resource and all resources it links to.
+   * This will only output EM_NS properties and will ignore any em:signature
+   * property.
+   *
+   * @param  aDs
+   *         The RDF datasource
+   * @param  aResource
+   *         The RDF resource to serialize
+   * @param  aIndent
+   *         The current level of indent for pretty-printing. If undefined no
+   *         indent will be added
+   * @return a string containing the serialized resource.
+   * @throws if the RDF data contains multiple references to the same resource.
+   */
+  serializeResource: function(aDs, aResource, aIndent) {
+    if (this.resources.indexOf(aResource) != -1 ) {
+      // We cannot output multiple references to the same resource.
+      throw Components.Exception("Cannot serialize multiple references to " + aResource.Value);
+    }
+    if (aIndent === undefined)
+      aIndent = "";
+
+    this.resources.push(aResource);
+    var container = null;
+    var type = "Description";
+    if (this.cUtils.IsSeq(aDs, aResource)) {
+      type = "Seq";
+      container = this.cUtils.MakeSeq(aDs, aResource);
+    }
+    else if (this.cUtils.IsAlt(aDs, aResource)) {
+      type = "Alt";
+      container = this.cUtils.MakeAlt(aDs, aResource);
+    }
+    else if (this.cUtils.IsBag(aDs, aResource)) {
+      type = "Bag";
+      container = this.cUtils.MakeBag(aDs, aResource);
+    }
+
+    var result = aIndent + "<RDF:" + type;
+    if (!gRDF.IsAnonymousResource(aResource))
+      result += " about=\"" + this.escapeEntities(aResource.ValueUTF8) + "\"";
+    result += ">\n";
+
+    if (container)
+      result += this.serializeContainerItems(aDs, container, aIndent + this.INDENT);
+
+    result += this.serializeResourceProperties(aDs, aResource, aIndent + this.INDENT);
+
+    result += aIndent + "</RDF:" + type + ">\n";
+    return result;
+  }
+}
+
+/**
+ * Sanitizes the update URL in an update item, as returned by
+ * parseRDFManifest and parseJSONManifest. Ensures that:
+ *
+ * - The URL is secure, or secured by a strong enough hash.
+ * - The security principal of the update manifest has permission to
+ *   load the URL.
+ *
+ * @param aUpdate
+ *        The update item to sanitize.
+ * @param aRequest
+ *        The XMLHttpRequest used to load the manifest.
+ * @param aHashPattern
+ *        The regular expression used to validate the update hash.
+ * @param aHashString
+ *        The human-readable string specifying which hash functions
+ *        are accepted.
+ */
+function sanitizeUpdateURL(aUpdate, aRequest, aHashPattern, aHashString) {
+  if (aUpdate.updateURL) {
+    let scriptSecurity = Services.scriptSecurityManager;
+    let principal = scriptSecurity.getChannelURIPrincipal(aRequest.channel);
+    try {
+      // This logs an error on failure, so no need to log it a second time
+      scriptSecurity.checkLoadURIStrWithPrincipal(principal, aUpdate.updateURL,
+                                                  scriptSecurity.DISALLOW_SCRIPT);
+    } catch (e) {
+      delete aUpdate.updateURL;
+      return;
+    }
+
+    if (AddonManager.checkUpdateSecurity &&
+        !aUpdate.updateURL.startsWith("https:") &&
+        !aHashPattern.test(aUpdate.updateHash)) {
+      logger.warn(`Update link ${aUpdate.updateURL} is not secure and is not verified ` +
+                  `by a strong enough hash (needs to be ${aHashString}).`);
+      delete aUpdate.updateURL;
+      delete aUpdate.updateHash;
+    }
+  }
+}
+
+/**
+ * Parses an RDF style update manifest into an array of update objects.
+ *
+ * @param  aId
+ *         The ID of the add-on being checked for updates
+ * @param  aUpdateKey
+ *         An optional update key for the add-on
+ * @param  aRequest
+ *         The XMLHttpRequest that has retrieved the update manifest
+ * @param  aManifestData
+ *         The pre-parsed manifest, as a bare XML DOM document
+ * @return an array of update objects
+ * @throws if the update manifest is invalid in any way
+ */
+function parseRDFManifest(aId, aUpdateKey, aRequest, aManifestData) {
+  if (aManifestData.documentElement.namespaceURI != PREFIX_NS_RDF) {
+    throw Components.Exception("Update manifest had an unrecognised namespace: " +
+                               aManifestData.documentElement.namespaceURI);
+  }
+
+  function EM_R(aProp) {
+    return gRDF.GetResource(PREFIX_NS_EM + aProp);
+  }
+
+  function getValue(aLiteral) {
+    if (aLiteral instanceof Ci.nsIRDFLiteral)
+      return aLiteral.Value;
+    if (aLiteral instanceof Ci.nsIRDFResource)
+      return aLiteral.Value;
+    if (aLiteral instanceof Ci.nsIRDFInt)
+      return aLiteral.Value;
+    return null;
+  }
+
+  function getProperty(aDs, aSource, aProperty) {
+    return getValue(aDs.GetTarget(aSource, EM_R(aProperty), true));
+  }
+
+  function getBooleanProperty(aDs, aSource, aProperty) {
+    let propValue = aDs.GetTarget(aSource, EM_R(aProperty), true);
+    if (!propValue)
+      return undefined;
+    return getValue(propValue) == "true";
+  }
+
+  function getRequiredProperty(aDs, aSource, aProperty) {
+    let value = getProperty(aDs, aSource, aProperty);
+    if (!value)
+      throw Components.Exception("Update manifest is missing a required " + aProperty + " property.");
+    return value;
+  }
+
+  let rdfParser = Cc["@mozilla.org/rdf/xml-parser;1"].
+                  createInstance(Ci.nsIRDFXMLParser);
+  let ds = Cc["@mozilla.org/rdf/datasource;1?name=in-memory-datasource"].
+           createInstance(Ci.nsIRDFDataSource);
+  rdfParser.parseString(ds, aRequest.channel.URI, aRequest.responseText);
+
+  // Differentiating between add-on types is deprecated
+  let extensionRes = gRDF.GetResource(PREFIX_EXTENSION + aId);
+  let themeRes = gRDF.GetResource(PREFIX_THEME + aId);
+  let itemRes = gRDF.GetResource(PREFIX_ITEM + aId);
+  let addonRes;
+  if (ds.ArcLabelsOut(extensionRes).hasMoreElements())
+    addonRes = extensionRes;
+  else if (ds.ArcLabelsOut(themeRes).hasMoreElements())
+    addonRes = themeRes;
+  else
+    addonRes = itemRes;
+
+  // If we have an update key then the update manifest must be signed
+  if (aUpdateKey) {
+    let signature = getProperty(ds, addonRes, "signature");
+    if (!signature)
+      throw Components.Exception("Update manifest for " + aId + " does not contain a required signature");
+    let serializer = new RDFSerializer();
+    let updateString = null;
+
+    try {
+      updateString = serializer.serializeResource(ds, addonRes);
+    }
+    catch (e) {
+      throw Components.Exception("Failed to generate signed string for " + aId + ". Serializer threw " + e,
+                                 e.result);
+    }
+
+    let result = false;
+
+    try {
+      let verifier = Cc["@mozilla.org/security/datasignatureverifier;1"].
+                     getService(Ci.nsIDataSignatureVerifier);
+      result = verifier.verifyData(updateString, signature, aUpdateKey);
+    }
+    catch (e) {
+      throw Components.Exception("The signature or updateKey for " + aId + " is malformed." +
+                                 "Verifier threw " + e, e.result);
+    }
+
+    if (!result)
+      throw Components.Exception("The signature for " + aId + " was not created by the add-on's updateKey");
+  }
+
+  let updates = ds.GetTarget(addonRes, EM_R("updates"), true);
+
+  // A missing updates property doesn't count as a failure, just as no avialable
+  // update information
+  if (!updates) {
+    logger.warn("Update manifest for " + aId + " did not contain an updates property");
+    return [];
+  }
+
+  if (!(updates instanceof Ci.nsIRDFResource))
+    throw Components.Exception("Missing updates property for " + addonRes.Value);
+
+  let cu = Cc["@mozilla.org/rdf/container-utils;1"].
+           getService(Ci.nsIRDFContainerUtils);
+  if (!cu.IsContainer(ds, updates))
+    throw Components.Exception("Updates property was not an RDF container");
+
+  let results = [];
+  let ctr = Cc["@mozilla.org/rdf/container;1"].
+            createInstance(Ci.nsIRDFContainer);
+  ctr.Init(ds, updates);
+  let items = ctr.GetElements();
+  while (items.hasMoreElements()) {
+    let item = items.getNext().QueryInterface(Ci.nsIRDFResource);
+    let version = getProperty(ds, item, "version");
+    if (!version) {
+      logger.warn("Update manifest is missing a required version property.");
+      continue;
+    }
+
+    logger.debug("Found an update entry for " + aId + " version " + version);
+
+    let targetApps = ds.GetTargets(item, EM_R("targetApplication"), true);
+    while (targetApps.hasMoreElements()) {
+      let targetApp = targetApps.getNext().QueryInterface(Ci.nsIRDFResource);
+
+      let appEntry = {};
+      try {
+        appEntry.id = getRequiredProperty(ds, targetApp, "id");
+        appEntry.minVersion = getRequiredProperty(ds, targetApp, "minVersion");
+        appEntry.maxVersion = getRequiredProperty(ds, targetApp, "maxVersion");
+      }
+      catch (e) {
+        logger.warn(e);
+        continue;
+      }
+
+      let result = {
+        id: aId,
+        version: version,
+        multiprocessCompatible: getBooleanProperty(ds, item, "multiprocessCompatible"),
+        updateURL: getProperty(ds, targetApp, "updateLink"),
+        updateHash: getProperty(ds, targetApp, "updateHash"),
+        updateInfoURL: getProperty(ds, targetApp, "updateInfoURL"),
+        strictCompatibility: !!getBooleanProperty(ds, targetApp, "strictCompatibility"),
+        targetApplications: [appEntry]
+      };
+
+      // The JSON update protocol requires an SHA-2 hash. RDF still
+      // supports SHA-1, for compatibility reasons.
+      sanitizeUpdateURL(result, aRequest, /^sha/, "sha1 or stronger");
+
+      results.push(result);
+    }
+  }
+  return results;
+}
+
+/**
+ * Parses an JSON update manifest into an array of update objects.
+ *
+ * @param  aId
+ *         The ID of the add-on being checked for updates
+ * @param  aUpdateKey
+ *         An optional update key for the add-on
+ * @param  aRequest
+ *         The XMLHttpRequest that has retrieved the update manifest
+ * @param  aManifestData
+ *         The pre-parsed manifest, as a JSON object tree
+ * @return an array of update objects
+ * @throws if the update manifest is invalid in any way
+ */
+function parseJSONManifest(aId, aUpdateKey, aRequest, aManifestData) {
+  if (aUpdateKey)
+    throw Components.Exception("Update keys are not supported for JSON update manifests");
+
+  let TYPE_CHECK = {
+    "array": val => Array.isArray(val),
+    "object": val => val && typeof val == "object" && !Array.isArray(val),
+  };
+
+  function getProperty(aObj, aProperty, aType, aDefault = undefined) {
+    if (!(aProperty in aObj))
+      return aDefault;
+
+    let value = aObj[aProperty];
+
+    let matchesType = aType in TYPE_CHECK ? TYPE_CHECK[aType](value) : typeof value == aType;
+    if (!matchesType)
+      throw Components.Exception(`Update manifest property '${aProperty}' has incorrect type (expected ${aType})`);
+
+    return value;
+  }
+
+  function getRequiredProperty(aObj, aProperty, aType) {
+    let value = getProperty(aObj, aProperty, aType);
+    if (value === undefined)
+      throw Components.Exception(`Update manifest is missing a required ${aProperty} property.`);
+    return value;
+  }
+
+  let manifest = aManifestData;
+
+  if (!TYPE_CHECK["object"](manifest))
+    throw Components.Exception("Root element of update manifest must be a JSON object literal");
+
+  // The set of add-ons this manifest has updates for
+  let addons = getRequiredProperty(manifest, "addons", "object");
+
+  // The entry for this particular add-on
+  let addon = getProperty(addons, aId, "object");
+
+  // A missing entry doesn't count as a failure, just as no avialable update
+  // information
+  if (!addon) {
+    logger.warn("Update manifest did not contain an entry for " + aId);
+    return [];
+  }
+
+  // The list of available updates
+  let updates = getProperty(addon, "updates", "array", []);
+
+  let results = [];
+
+  for (let update of updates) {
+    let version = getRequiredProperty(update, "version", "string");
+
+    logger.debug(`Found an update entry for ${aId} version ${version}`);
+
+    let applications = getProperty(update, "applications", "object",
+                                   { gecko: {} });
+
+    // "gecko" is currently the only supported application entry. If
+    // it's missing, skip this update.
+    if (!("gecko" in applications)) {
+      logger.debug("gecko not in application entry, skipping update of ${addon}")
+      continue;
+    }
+
+    let app = getProperty(applications, "gecko", "object");
+
+    let appEntry = {
+      id: TOOLKIT_ID,
+      minVersion: getProperty(app, "strict_min_version", "string",
+                              AddonManagerPrivate.webExtensionsMinPlatformVersion),
+      maxVersion: "*",
+    };
+
+    let result = {
+      id: aId,
+      version: version,
+      multiprocessCompatible: getProperty(update, "multiprocess_compatible", "boolean", true),
+      updateURL: getProperty(update, "update_link", "string"),
+      updateHash: getProperty(update, "update_hash", "string"),
+      updateInfoURL: getProperty(update, "update_info_url", "string"),
+      strictCompatibility: false,
+      targetApplications: [appEntry],
+    };
+
+    if ("strict_max_version" in app) {
+      if ("advisory_max_version" in app) {
+        logger.warn("Ignoring 'advisory_max_version' update manifest property for " +
+                    aId + " property since 'strict_max_version' also present");
+      }
+
+      appEntry.maxVersion = getProperty(app, "strict_max_version", "string");
+      result.strictCompatibility = appEntry.maxVersion != "*";
+    } else if ("advisory_max_version" in app) {
+      appEntry.maxVersion = getProperty(app, "advisory_max_version", "string");
+    }
+
+    // The JSON update protocol requires an SHA-2 hash. RDF still
+    // supports SHA-1, for compatibility reasons.
+    sanitizeUpdateURL(result, aRequest, /^sha(256|512):/, "sha256 or sha512");
+
+    results.push(result);
+  }
+  return results;
+}
+
+/**
+ * Starts downloading an update manifest and then passes it to an appropriate
+ * parser to convert to an array of update objects
+ *
+ * @param  aId
+ *         The ID of the add-on being checked for updates
+ * @param  aUpdateKey
+ *         An optional update key for the add-on
+ * @param  aUrl
+ *         The URL of the update manifest
+ * @param  aObserver
+ *         An observer to pass results to
+ */
+function UpdateParser(aId, aUpdateKey, aUrl, aObserver) {
+  this.id = aId;
+  this.updateKey = aUpdateKey;
+  this.observer = aObserver;
+  this.url = aUrl;
+
+  let requireBuiltIn = true;
+  try {
+    requireBuiltIn = Services.prefs.getBoolPref(PREF_UPDATE_REQUIREBUILTINCERTS);
+  }
+  catch (e) {
+  }
+
+  logger.debug("Requesting " + aUrl);
+  try {
+    this.request = new ServiceRequest();
+    this.request.open("GET", this.url, true);
+    this.request.channel.notificationCallbacks = new CertUtils.BadCertHandler(!requireBuiltIn);
+    this.request.channel.loadFlags |= Ci.nsIRequest.LOAD_BYPASS_CACHE;
+    // Prevent the request from writing to cache.
+    this.request.channel.loadFlags |= Ci.nsIRequest.INHIBIT_CACHING;
+    this.request.overrideMimeType("text/plain");
+    this.request.setRequestHeader("Moz-XPI-Update", "1", true);
+    this.request.timeout = TIMEOUT;
+    this.request.addEventListener("load", () => this.onLoad(), false);
+    this.request.addEventListener("error", () => this.onError(), false);
+    this.request.addEventListener("timeout", () => this.onTimeout(), false);
+    this.request.send(null);
+  }
+  catch (e) {
+    logger.error("Failed to request update manifest", e);
+  }
+}
+
+UpdateParser.prototype = {
+  id: null,
+  updateKey: null,
+  observer: null,
+  request: null,
+  url: null,
+
+  /**
+   * Called when the manifest has been successfully loaded.
+   */
+  onLoad: function() {
+    let request = this.request;
+    this.request = null;
+    this._doneAt = new Error("place holder");
+
+    let requireBuiltIn = true;
+    try {
+      requireBuiltIn = Services.prefs.getBoolPref(PREF_UPDATE_REQUIREBUILTINCERTS);
+    }
+    catch (e) {
+    }
+
+    try {
+      CertUtils.checkCert(request.channel, !requireBuiltIn);
+    }
+    catch (e) {
+      logger.warn("Request failed: " + this.url + " - " + e);
+      this.notifyError(AddonUpdateChecker.ERROR_DOWNLOAD_ERROR);
+      return;
+    }
+
+    if (!Components.isSuccessCode(request.status)) {
+      logger.warn("Request failed: " + this.url + " - " + request.status);
+      this.notifyError(AddonUpdateChecker.ERROR_DOWNLOAD_ERROR);
+      return;
+    }
+
+    let channel = request.channel;
+    if (channel instanceof Ci.nsIHttpChannel && !channel.requestSucceeded) {
+      logger.warn("Request failed: " + this.url + " - " + channel.responseStatus +
+           ": " + channel.responseStatusText);
+      this.notifyError(AddonUpdateChecker.ERROR_DOWNLOAD_ERROR);
+      return;
+    }
+
+    // Detect the manifest type by first attempting to parse it as
+    // JSON, and falling back to parsing it as XML if that fails.
+    let parser;
+    try {
+      try {
+        let json = JSON.parse(request.responseText);
+
+        parser = () => parseJSONManifest(this.id, this.updateKey, request, json);
+      } catch (e) {
+        if (!(e instanceof SyntaxError))
+          throw e;
+        let domParser = Cc["@mozilla.org/xmlextras/domparser;1"].createInstance(Ci.nsIDOMParser);
+        let xml = domParser.parseFromString(request.responseText, "text/xml");
+
+        if (xml.documentElement.namespaceURI == XMLURI_PARSE_ERROR)
+          throw new Error("Update manifest was not valid XML or JSON");
+
+        parser = () => parseRDFManifest(this.id, this.updateKey, request, xml);
+      }
+    } catch (e) {
+      logger.warn("onUpdateCheckComplete failed to determine manifest type");
+      this.notifyError(AddonUpdateChecker.ERROR_UNKNOWN_FORMAT);
+      return;
+    }
+
+    let results;
+    try {
+      results = parser();
+    }
+    catch (e) {
+      logger.warn("onUpdateCheckComplete failed to parse update manifest", e);
+      this.notifyError(AddonUpdateChecker.ERROR_PARSE_ERROR);
+      return;
+    }
+
+    if ("onUpdateCheckComplete" in this.observer) {
+      try {
+        this.observer.onUpdateCheckComplete(results);
+      }
+      catch (e) {
+        logger.warn("onUpdateCheckComplete notification failed", e);
+      }
+    }
+    else {
+      logger.warn("onUpdateCheckComplete may not properly cancel", new Error("stack marker"));
+    }
+  },
+
+  /**
+   * Called when the request times out
+   */
+  onTimeout: function() {
+    this.request = null;
+    this._doneAt = new Error("Timed out");
+    logger.warn("Request for " + this.url + " timed out");
+    this.notifyError(AddonUpdateChecker.ERROR_TIMEOUT);
+  },
+
+  /**
+   * Called when the manifest failed to load.
+   */
+  onError: function() {
+    if (!Components.isSuccessCode(this.request.status)) {
+      logger.warn("Request failed: " + this.url + " - " + this.request.status);
+    }
+    else if (this.request.channel instanceof Ci.nsIHttpChannel) {
+      try {
+        if (this.request.channel.requestSucceeded) {
+          logger.warn("Request failed: " + this.url + " - " +
+               this.request.channel.responseStatus + ": " +
+               this.request.channel.responseStatusText);
+        }
+      }
+      catch (e) {
+        logger.warn("HTTP Request failed for an unknown reason");
+      }
+    }
+    else {
+      logger.warn("Request failed for an unknown reason");
+    }
+
+    this.request = null;
+    this._doneAt = new Error("UP_onError");
+
+    this.notifyError(AddonUpdateChecker.ERROR_DOWNLOAD_ERROR);
+  },
+
+  /**
+   * Helper method to notify the observer that an error occured.
+   */
+  notifyError: function(aStatus) {
+    if ("onUpdateCheckError" in this.observer) {
+      try {
+        this.observer.onUpdateCheckError(aStatus);
+      }
+      catch (e) {
+        logger.warn("onUpdateCheckError notification failed", e);
+      }
+    }
+  },
+
+  /**
+   * Called to cancel an in-progress update check.
+   */
+  cancel: function() {
+    if (!this.request) {
+      logger.error("Trying to cancel already-complete request", this._doneAt);
+      return;
+    }
+    this.request.abort();
+    this.request = null;
+    this._doneAt = new Error("UP_cancel");
+    this.notifyError(AddonUpdateChecker.ERROR_CANCELLED);
+  }
+};
+
+/**
+ * Tests if an update matches a version of the application or platform
+ *
+ * @param  aUpdate
+ *         The available update
+ * @param  aAppVersion
+ *         The application version to use
+ * @param  aPlatformVersion
+ *         The platform version to use
+ * @param  aIgnoreMaxVersion
+ *         Ignore maxVersion when testing if an update matches. Optional.
+ * @param  aIgnoreStrictCompat
+ *         Ignore strictCompatibility when testing if an update matches. Optional.
+ * @param  aCompatOverrides
+ *         AddonCompatibilityOverride objects to match against. Optional.
+ * @return true if the update is compatible with the application/platform
+ */
+function matchesVersions(aUpdate, aAppVersion, aPlatformVersion,
+                         aIgnoreMaxVersion, aIgnoreStrictCompat,
+                         aCompatOverrides) {
+  if (aCompatOverrides) {
+    let override = AddonRepository.findMatchingCompatOverride(aUpdate.version,
+                                                              aCompatOverrides,
+                                                              aAppVersion,
+                                                              aPlatformVersion);
+    if (override && override.type == "incompatible")
+      return false;
+  }
+
+  if (aUpdate.strictCompatibility && !aIgnoreStrictCompat)
+    aIgnoreMaxVersion = false;
+
+  let result = false;
+  for (let app of aUpdate.targetApplications) {
+    if (app.id == Services.appinfo.ID) {
+      return (Services.vc.compare(aAppVersion, app.minVersion) >= 0) &&
+             (aIgnoreMaxVersion || (Services.vc.compare(aAppVersion, app.maxVersion) <= 0));
+    }
+    if (app.id == TOOLKIT_ID) {
+      result = (Services.vc.compare(aPlatformVersion, app.minVersion) >= 0) &&
+               (aIgnoreMaxVersion || (Services.vc.compare(aPlatformVersion, app.maxVersion) <= 0));
+    }
+  }
+  return result;
+}
+
+this.AddonUpdateChecker = {
+  // These must be kept in sync with AddonManager
+  // The update check timed out
+  ERROR_TIMEOUT: -1,
+  // There was an error while downloading the update information.
+  ERROR_DOWNLOAD_ERROR: -2,
+  // The update information was malformed in some way.
+  ERROR_PARSE_ERROR: -3,
+  // The update information was not in any known format.
+  ERROR_UNKNOWN_FORMAT: -4,
+  // The update information was not correctly signed or there was an SSL error.
+  ERROR_SECURITY_ERROR: -5,
+  // The update was cancelled
+  ERROR_CANCELLED: -6,
+
+  /**
+   * Retrieves the best matching compatibility update for the application from
+   * a list of available update objects.
+   *
+   * @param  aUpdates
+   *         An array of update objects
+   * @param  aVersion
+   *         The version of the add-on to get new compatibility information for
+   * @param  aIgnoreCompatibility
+   *         An optional parameter to get the first compatibility update that
+   *         is compatible with any version of the application or toolkit
+   * @param  aAppVersion
+   *         The version of the application or null to use the current version
+   * @param  aPlatformVersion
+   *         The version of the platform or null to use the current version
+   * @param  aIgnoreMaxVersion
+   *         Ignore maxVersion when testing if an update matches. Optional.
+   * @param  aIgnoreStrictCompat
+   *         Ignore strictCompatibility when testing if an update matches. Optional.
+   * @return an update object if one matches or null if not
+   */
+  getCompatibilityUpdate: function(aUpdates, aVersion, aIgnoreCompatibility,
+                                   aAppVersion, aPlatformVersion,
+                                   aIgnoreMaxVersion, aIgnoreStrictCompat) {
+    if (!aAppVersion)
+      aAppVersion = Services.appinfo.version;
+    if (!aPlatformVersion)
+      aPlatformVersion = Services.appinfo.platformVersion;
+
+    for (let update of aUpdates) {
+      if (Services.vc.compare(update.version, aVersion) == 0) {
+        if (aIgnoreCompatibility) {
+          for (let targetApp of update.targetApplications) {
+            let id = targetApp.id;
+            if (id == Services.appinfo.ID || id == TOOLKIT_ID)
+              return update;
+          }
+        }
+        else if (matchesVersions(update, aAppVersion, aPlatformVersion,
+                                 aIgnoreMaxVersion, aIgnoreStrictCompat)) {
+          return update;
+        }
+      }
+    }
+    return null;
+  },
+
+  /**
+   * Returns the newest available update from a list of update objects.
+   *
+   * @param  aUpdates
+   *         An array of update objects
+   * @param  aAppVersion
+   *         The version of the application or null to use the current version
+   * @param  aPlatformVersion
+   *         The version of the platform or null to use the current version
+   * @param  aIgnoreMaxVersion
+   *         When determining compatible updates, ignore maxVersion. Optional.
+   * @param  aIgnoreStrictCompat
+   *         When determining compatible updates, ignore strictCompatibility. Optional.
+   * @param  aCompatOverrides
+   *         Array of AddonCompatibilityOverride to take into account. Optional.
+   * @return an update object if one matches or null if not
+   */
+  getNewestCompatibleUpdate: function(aUpdates, aAppVersion, aPlatformVersion,
+                                      aIgnoreMaxVersion, aIgnoreStrictCompat,
+                                      aCompatOverrides) {
+    if (!aAppVersion)
+      aAppVersion = Services.appinfo.version;
+    if (!aPlatformVersion)
+      aPlatformVersion = Services.appinfo.platformVersion;
+
+    let blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                    getService(Ci.nsIBlocklistService);
+
+    let newest = null;
+    for (let update of aUpdates) {
+      if (!update.updateURL)
+        continue;
+      let state = blocklist.getAddonBlocklistState(update, aAppVersion, aPlatformVersion);
+      if (state != Ci.nsIBlocklistService.STATE_NOT_BLOCKED)
+        continue;
+      if ((newest == null || (Services.vc.compare(newest.version, update.version) < 0)) &&
+          matchesVersions(update, aAppVersion, aPlatformVersion,
+                          aIgnoreMaxVersion, aIgnoreStrictCompat,
+                          aCompatOverrides)) {
+        newest = update;
+      }
+    }
+    return newest;
+  },
+
+  /**
+   * Starts an update check.
+   *
+   * @param  aId
+   *         The ID of the add-on being checked for updates
+   * @param  aUpdateKey
+   *         An optional update key for the add-on
+   * @param  aUrl
+   *         The URL of the add-on's update manifest
+   * @param  aObserver
+   *         An observer to notify of results
+   * @return UpdateParser so that the caller can use UpdateParser.cancel() to shut
+   *         down in-progress update requests
+   */
+  checkForUpdates: function(aId, aUpdateKey, aUrl, aObserver) {
+    return new UpdateParser(aId, aUpdateKey, aUrl, aObserver);
+  }
+};
diff --git a/toolkit/mozapps/webextensions/internal/Content.js b/toolkit/mozapps/webextensions/internal/Content.js
new file mode 100644
index 000000000..9f366ba32
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/Content.js
@@ -0,0 +1,38 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* globals addMessageListener*/
+
+"use strict";
+
+(function() {
+
+var {classes: Cc, interfaces: Ci, utils: Cu} = Components;
+
+var {Services} = Cu.import("resource://gre/modules/Services.jsm", {});
+
+var nsIFile = Components.Constructor("@mozilla.org/file/local;1", "nsIFile",
+                                     "initWithPath");
+
+const MSG_JAR_FLUSH = "AddonJarFlush";
+const MSG_MESSAGE_MANAGER_CACHES_FLUSH = "AddonMessageManagerCachesFlush";
+
+
+try {
+  if (Services.appinfo.processType !== Services.appinfo.PROCESS_TYPE_DEFAULT) {
+    // Propagate JAR cache flush notifications across process boundaries.
+    addMessageListener(MSG_JAR_FLUSH, function(message) {
+      let file = new nsIFile(message.data);
+      Services.obs.notifyObservers(file, "flush-cache-entry", null);
+    });
+    // Propagate message manager caches flush notifications across processes.
+    addMessageListener(MSG_MESSAGE_MANAGER_CACHES_FLUSH, function() {
+      Services.obs.notifyObservers(null, "message-manager-flush-caches", null);
+    });
+  }
+} catch (e) {
+  Cu.reportError(e);
+}
+
+})();
diff --git a/toolkit/mozapps/webextensions/internal/E10SAddonsRollout.jsm b/toolkit/mozapps/webextensions/internal/E10SAddonsRollout.jsm
new file mode 100644
index 000000000..3bcee44d3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/E10SAddonsRollout.jsm
@@ -0,0 +1,982 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = [ "isAddonPartOfE10SRollout" ];
+
+const Cu = Components.utils;
+Cu.import("resource://gre/modules/Preferences.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+const PREF_E10S_ADDON_BLOCKLIST = "extensions.e10s.rollout.blocklist";
+const PREF_E10S_ADDON_POLICY    = "extensions.e10s.rollout.policy";
+
+const ADDONS = {
+  "Greasemonkey": { // Greasemonkey
+    id: "{e4a8a97b-f2ed-450b-b12d-ee082ba24781}", minVersion: "3.8",
+  },
+
+  "DYTV": { // Download YouTube Videos as MP4
+    id: "{b9bfaf1c-a63f-47cd-8b9a-29526ced9060}", minVersion: "1.8.7",
+  },
+
+  "VDH": { // Video Download Helper
+    id: "{b9db16a4-6edc-47ec-a1f4-b86292ed211d}", minVersion: "5.6.1",
+  },
+
+  "Lightbeam": { // Lightbeam
+    id: "jid1-F9UJ2thwoAm5gQ@jetpack", minVersion: "1.3.0.1",
+  },
+
+  "ABP": { // Adblock Plus
+    id: "{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}", minVersion: "2.7.3",
+  },
+
+  "uBlockOrigin": { // uBlock Origin
+    id: "uBlock0@raymondhill.net", minVersion: "1.7.6",
+  },
+
+  "Emoji": { // Emoji Cheatsheet
+    id: "jid1-Xo5SuA6qc1DFpw@jetpack", minVersion: "1.1.1",
+  },
+
+  "ASP": { // Awesome Screenshot Plus
+    id: "jid0-GXjLLfbCoAx0LcltEdFrEkQdQPI@jetpack", minVersion: "3.0.10",
+  },
+
+  "PersonasPlus": { // PersonasPlus
+    id: "personas@christopher.beard", minVersion: "1.8.0",
+  },
+
+  "ACR": { // Add-on Compatibility Reporter
+    id: "compatibility@addons.mozilla.org", minVersion: "2.2.0",
+  },
+
+  // Add-ons used for testing
+  "test1": {
+    id: "bootstrap1@tests.mozilla.org", minVersion: "1.0",
+  },
+
+  "test2": {
+    id: "bootstrap2@tests.mozilla.org", minVersion: "1.0",
+  },
+};
+
+// NOTE: Do not modify sets or policies after they have already been
+// published to users. They must remain unchanged to provide valid data.
+
+// Set 2 used during 48 Beta cycle. Kept here for historical reasons.
+const set2 = [ADDONS.Greasemonkey,
+              ADDONS.DYTV,
+              ADDONS.VDH,
+              ADDONS.Lightbeam,
+              ADDONS.ABP,
+              ADDONS.uBlockOrigin,
+              ADDONS.Emoji,
+              ADDONS.ASP,
+              ADDONS.PersonasPlus];
+
+const set49Release = [
+  ADDONS.Greasemonkey,
+  ADDONS.DYTV,
+  ADDONS.VDH,
+  ADDONS.Lightbeam,
+  ADDONS.ABP,
+  ADDONS.uBlockOrigin,
+  ADDONS.Emoji,
+  ADDONS.ASP,
+  ADDONS.PersonasPlus,
+  ADDONS.ACR
+];
+
+// These are only the add-ons in the Add-Ons Manager Discovery
+// pane. This set is here in case we need to reduce add-ons
+// exposure live on Release.
+const set49PaneOnly = [
+  ADDONS.ABP,
+  ADDONS.VDH,
+  ADDONS.Emoji,
+  ADDONS.ASP,
+  ADDONS.ACR
+]
+
+// ================== ADDONS FOR 51 RELEASE ==================
+//
+// During the 51 beta cycle, we tested e10s with all addons
+// except those explicitly marked as being incompatible.
+// For release, instead of opening this up, we assembled
+// the lists below with all addons that were seen on beta
+// and had over 50 installs.
+//
+// This list is in a new format to allow fast access and also
+// to allow controlling by the number of addons installed.
+
+const set51Release = {
+  "_65Members_@download.fromdoctopdf.com": {minVersion: "7.102.10.4221", installs: 32092},
+  "light_plugin_ACF0E80077C511E59DED005056C00008@kaspersky.com": {minVersion: "4.6.3-15", installs: 27758},
+  "_ceMembers_@free.easypdfcombine.com": {minVersion: "7.102.10.4117", installs: 17797},
+  "caa1-aDOiCAxFFMOVIX@jetpack": {minVersion: "0.1.7", installs: 13150},
+  "{4ED1F68A-5463-4931-9384-8FFF5ED91D92}": {minVersion: "5.0.248.0", installs: 12774},
+  "_dbMembers_@free.getformsonline.com": {minVersion: "7.102.10.4251", installs: 11909},
+  "_4zMembers_@www.videodownloadconverter.com": {minVersion: "7.102.10.5033", installs: 11612},
+  "light_plugin_F6F079488B53499DB99380A7E11A93F6@kaspersky.com": {minVersion: "5.0.141-4-20161031140250", installs: 10944},
+  "YoutubeDownloader@PeterOlayev.com": {minVersion: "2.4.1", installs: 10722},
+  "{82AF8DCA-6DE9-405D-BD5E-43525BDAD38A}": {minVersion: "8.0.0.9103", installs: 8856},
+  "client@anonymox.net": {minVersion: "2.5.2", installs: 8225},
+  "_8hMembers_@download.allin1convert.com": {minVersion: "7.102.10.3584", installs: 7681},
+  "light_plugin_D772DC8D6FAF43A29B25C4EBAA5AD1DE@kaspersky.com": {minVersion: "4.6.2-42-20160922074409", installs: 7177},
+  "_dzMembers_@www.pconverter.com": {minVersion: "7.102.10.4851", installs: 7115},
+  "fxdevtools-adapters@mozilla.org": {minVersion: "0.3.5", installs: 6926},
+  "_9pMembers_@free.onlinemapfinder.com": {minVersion: "7.102.10.4836", installs: 6583},
+  "@DownloadManager": {minVersion: "0.2.1", installs: 6412},
+  "ar1er-ewrgfdgomusix@jetpack": {minVersion: "1.0.6", installs: 5975},
+  "_agMembers_@free.premierdownloadmanager.com": {minVersion: "7.102.10.4846", installs: 5605},
+  "_paMembers_@www.filmfanatic.com": {minVersion: "7.102.10.4163", installs: 5448},
+  "_gtMembers_@free.gamingwonderland.com": {minVersion: "7.102.10.4263", installs: 5241},
+  "LVD-SAE@iacsearchandmedia.com": {minVersion: "8.5", installs: 4694},
+  "_fsMembers_@free.pdfconverterhq.com": {minVersion: "7.102.10.4849", installs: 4526},
+  "_6xMembers_@www.readingfanatic.com": {minVersion: "7.102.10.4914", installs: 4417},
+  "@mysmartprice-ff": {minVersion: "0.0.6", installs: 4381},
+  "jid1-YcMV6ngYmQRA2w@jetpack": {minVersion: "1.37.9", installs: 3899},
+  "{58d735b4-9d6c-4e37-b146-7b9f7e79e318}": {minVersion: "1.6", installs: 3733},
+  "anttoolbar@ant.com": {minVersion: "2.4.7.47", installs: 3720},
+  "adblockpopups@jessehakanen.net": {minVersion: "0.9.2.1-signed.1-signed", installs: 3602},
+  "ERAIL.IN.FFPLUGIN@jetpack": {minVersion: "6.0.rev142", installs: 3545},
+  "WebProtection@360safe.com": {minVersion: "5.0.0.1005", installs: 3475},
+  "yasearch@yandex.ru": {minVersion: "8.20.4", installs: 3299},
+  "{19503e42-ca3c-4c27-b1e2-9cdb2170ee34}": {minVersion: "1.5.6.14", installs: 3106},
+  "{C1A2A613-35F1-4FCF-B27F-2840527B6556}": {minVersion: "2016.8.1.9", installs: 3083},
+  "_b7Members_@free.mytransitguide.com": {minVersion: "7.102.10.4812", installs: 3011},
+  "_9tMembers_@free.internetspeedtracker.com": {minVersion: "7.102.10.4339", installs: 2828},
+  "_64Members_@www.televisionfanatic.com": {minVersion: "7.102.10.4968", installs: 2821},
+  "info@youtube-mp3.org": {minVersion: "1.0.9.1-signed.1-signed", installs: 2717},
+  "ffext_basicvideoext@startpage24": {minVersion: "1.97.37.1-signed.1-signed", installs: 2663},
+  "MUB-SAE@iacsearchandmedia.com": {minVersion: "8.7", installs: 2650},
+  "_4jMembers_@www.radiorage.com": {minVersion: "7.102.10.4916", installs: 2631},
+  "@Email": {minVersion: "4.0.12", installs: 2583},
+  "_gcMembers_@www.weatherblink.com": {minVersion: "7.38.8.56523", installs: 2519},
+  "_dqMembers_@www.downspeedtest.com": {minVersion: "7.102.10.3827", installs: 2445},
+  "translator@zoli.bod": {minVersion: "2.1.0.5.1.1-signed", installs: 2310},
+  "{a38384b3-2d1d-4f36-bc22-0f7ae402bcd7}": {minVersion: "1.0.0.51", installs: 2190},
+  "_1eMembers_@www.videoscavenger.com": {minVersion: "7.38.8.45273", installs: 2185},
+  "tvplusnewtab-the-extension1@mozilla.com": {minVersion: "0.1.5", installs: 2155},
+  "homepage@mail.ru": {minVersion: "1.0.2", installs: 2124},
+  "search@mail.ru": {minVersion: "1.0.7", installs: 2038},
+  "_69Members_@www.packagetracer.com": {minVersion: "7.102.10.4831", installs: 2036},
+  "{7b8a500a-a464-4624-bd4f-73eaafe0f766}": {minVersion: "3", installs: 2027},
+  "paulsaintuzb@gmail.com": {minVersion: "8.2.1", installs: 2005},
+  "k7srff_enUS@k7computing.com": {minVersion: "2.4", installs: 1929},
+  "_e5Members_@www.productivityboss.com": {minVersion: "7.38.8.46590", installs: 1892},
+  "vdpure@link64": {minVersion: "1.97.43", installs: 1860},
+  "_9tMembers_@download.internetspeedtracker.com": {minVersion: "7.38.8.56171", installs: 1824},
+  "_g3Members_@free.easyphotoedit.com": {minVersion: "7.102.10.4108", installs: 1822},
+  "_64Members_@download.televisionfanatic.com": {minVersion: "7.38.9.3004", installs: 1730},
+  "_8iMembers_@download.audiotoaudio.com": {minVersion: "7.102.10.3585", installs: 1704},
+  "adblockultimate@adblockultimate.net": {minVersion: "2.25", installs: 1648},
+  "eagleget_ffext@eagleget.com": {minVersion: "3.8", installs: 1640},
+  "_9eMembers_@free.findmefreebies.com": {minVersion: "7.102.10.4193", installs: 1638},
+  "content_blocker_663BE8@kaspersky.com": {minVersion: "4.5.4.19.1", installs: 1625},
+  "virtual_keyboard_074028@kaspersky.com": {minVersion: "4.5.4.19.1", installs: 1624},
+  "browsec@browsec.com": {minVersion: "2.0.3", installs: 1610},
+  "@Maps": {minVersion: "4.0.0", installs: 1587},
+  "_exMembers_@free.easydocmerge.com": {minVersion: "7.102.10.4137", installs: 1493},
+  "{635abd67-4fe9-1b23-4f01-e679fa7484c1}": {minVersion: "5.0.2", installs: 1490},
+  "abb@amazon.com": {minVersion: "10.1612.1.304", installs: 1463},
+  "{1BC9BA34-1EED-42ca-A505-6D2F1A935BBB}": {minVersion: "6.2.18.1", installs: 1436},
+  "mp4downloader@jeff.net": {minVersion: "1.3.3.1-signed.1-signed", installs: 1410},
+  "jid1-16aeif9OQIRKxA@jetpack": {minVersion: "1.1.4", installs: 1399},
+  "{c45c406e-ab73-11d8-be73-000a95be3b12}": {minVersion: "1.2.11", installs: 1367},
+  "online_banking_08806E@kaspersky.com": {minVersion: "4.5.4.19.1", installs: 1356},
+  "_ewMembers_@free.mergedocsonline.com": {minVersion: "7.102.10.4710", installs: 1337},
+  "@DiscreteSearch": {minVersion: "0.2.1", installs: 1306},
+  "{6AC85730-7D0F-4de0-B3FA-21142DD85326}": {minVersion: "2.8.2", installs: 1286},
+  "{063DA41A-2561-401B-91FA-AC75E460F4EB}": {minVersion: "1.0.7.1", installs: 1280},
+  "netvideohunter@netvideohunter.com": {minVersion: "1.2", installs: 1260},
+  "_8eMembers_@download.howtosimplified.com": {minVersion: "7.102.10.4285", installs: 1230},
+  "FGZ-SAE@iacsearchandmedia.com": {minVersion: "8.5", installs: 1220},
+  "adguardadblocker@adguard.com": {minVersion: "2.4.14", installs: 1172},
+  "_39Members_@www.mapsgalaxy.com": {minVersion: "7.102.10.4730", installs: 1171},
+  "_euMembers_@free.filesendsuite.com": {minVersion: "7.102.10.4154", installs: 1166},
+  "_brMembers_@free.yourtemplatefinder.com": {minVersion: "7.102.10.5047", installs: 1159},
+  "_8jMembers_@download.myimageconverter.com": {minVersion: "7.102.10.4778", installs: 1150},
+  "_12Members_@free.myscrapnook.com": {minVersion: "7.102.10.4739", installs: 1113},
+  "_7eMembers_@www.homeworksimplified.com": {minVersion: "7.102.10.4290", installs: 1109},
+  "{fe272bd1-5f76-4ea4-8501-a05d35d823fc}": {minVersion: "2.1.9.1-signed.1-let-fixed.1-signed", installs: 1108},
+  "_frMembers_@free.testforspeed.com": {minVersion: "7.102.10.4993", installs: 1107},
+  "{068e178c-61a9-4a63-b74f-87404a6f5ea1}": {minVersion: "2", installs: 1104},
+  "@Package": {minVersion: "0.2.0", installs: 1092},
+  "6asa42dfa4784fsf368g@youtubeconverter.me": {minVersion: "0.1", installs: 1071},
+  "_diMembers_@www.free.easymaillogin.com": {minVersion: "7.102.10.4112", installs: 1043},
+  "_v4Members_@www.dictionaryboss.com": {minVersion: "7.102.10.3797", installs: 1035},
+  "colorPicker@colorPicker": {minVersion: "3.0.1-signed.1-signed", installs: 1023},
+  "hotspot-shield@anchorfree.com": {minVersion: "1.2.87", installs: 1000},
+  "manishjain9@hotmail.com_easiestyoutube": {minVersion: "7.2.1-signed.1-let-fixed.1-signed", installs: 993},
+  "{cd617375-6743-4ee8-bac4-fbf10f35729e}": {minVersion: "2.9.6", installs: 987},
+  "@Converter": {minVersion: "4.1.0", installs: 986},
+  "{dd3d7613-0246-469d-bc65-2a3cc1668adc}": {minVersion: "1.1.8.1-signed.1-signed", installs: 983},
+  "ubufox@ubuntu.com": {minVersion: "3.2", installs: 950},
+  "jid1-lpoiffmusixlib@jetpack": {minVersion: "0.1.9", installs: 945},
+  "_5aMembers_@download.mywebface.com": {minVersion: "7.102.10.4837", installs: 930},
+  "leethax@leethax.net": {minVersion: "2016.12.02", installs: 930},
+  "{1A2D0EC4-75F5-4c91-89C4-3656F6E44B68}": {minVersion: "0.6.3.1-signed.1-signed", installs: 885},
+  "{64161300-e22b-11db-8314-0800200c9a66}": {minVersion: "0.9.6.18", installs: 875},
+  "_bfMembers_@free.snapmyscreen.com": {minVersion: "7.102.10.4951", installs: 827},
+  "uriloader@pdf.js": {minVersion: "1.0.277.1-signed.1-signed", installs: 815},
+  "{e968fc70-8f95-4ab9-9e79-304de2a71ee1}": {minVersion: "0.7.3.1-signed.1-signed", installs: 805},
+  "save-as-pdf-ff@pdfcrowd.com": {minVersion: "1.5.1-signed.1-signed", installs: 804},
+  "{75CEEE46-9B64-46f8-94BF-54012DE155F0}": {minVersion: "0.4.15", installs: 794},
+  "safesearchplus2@avira.com": {minVersion: "1.4.1.371", installs: 786},
+  "easyscreenshot@mozillaonline.com": {minVersion: "1.2.8", installs: 785},
+  "_eeMembers_@download.freeradiocast.com": {minVersion: "7.38.8.46366", installs: 783},
+  "_89Members_@download.safepcrepair.com": {minVersion: "7.39.8.51080", installs: 777},
+  "{a3a5c777-f583-4fef-9380-ab4add1bc2a5}": {minVersion: "2.4.2.1-signed", installs: 771},
+  "content_blocker@kaspersky.com": {minVersion: "4.0.10.15", installs: 770},
+  "safesearch@avira.com": {minVersion: "1.4.1.371", installs: 767},
+  "youtube2mp3@mondayx.de": {minVersion: "1.2.3.1-signed.1-signed", installs: 748},
+  "2020Player_IKEA@2020Technologies.com": {minVersion: "5.0.94.1", installs: 736},
+  "_edMembers_@free.myradioaccess.com": {minVersion: "7.102.10.4797", installs: 734},
+  "_dmMembers_@free.gounzip.com": {minVersion: "7.102.10.4277", installs: 733},
+  "Media-Newtab-the-extension1@mozilla.com": {minVersion: "0.1.6", installs: 732},
+  "foxmarks@kei.com": {minVersion: "4.3.19", installs: 728},
+  "{e8deb9e5-5688-4655-838a-b7a121a9f16e}": {minVersion: "48.4", installs: 726},
+  "{195A3098-0BD5-4e90-AE22-BA1C540AFD1E}": {minVersion: "4.1.0.1-signed.1-signed", installs: 722},
+  "jid1-4P0kohSJxU1qGg@jetpack": {minVersion: "1.22.550", installs: 719},
+  "DailymotionVideoDownloader@PeterOlayev.com": {minVersion: "1.0.6.1-signed.1-signed", installs: 717},
+  "jid1-P34HaABBBpOerQ@jetpack": {minVersion: "0.2.1-signed.1-signed", installs: 715},
+  "SQLiteManager@mrinalkant.blogspot.com": {minVersion: "0.8.3.1-signed.1-signed", installs: 700},
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+  "{FBF6D7FB-F305-4445-BB3D-FEF66579A033}": {minVersion: "6", installs: 54},
+  "5aa55fd5-6e61-4896-b186-fdc6f298ec92@mozilla": {minVersion: "0.1.2.1-signed", installs: 54},
+  "fireml@sirma.bg": {minVersion: "1.1.11.1-signed.1-signed", installs: 54},
+  "info@priceblink.com": {minVersion: "4.8", installs: 54},
+  "jid0-f82gosWvE8oeGQt6WDCGRF1Dy7Q@jetpack": {minVersion: "1.0.003", installs: 54},
+  "jid0-hyjN250ZzTOOX3evFwwAQBxE4ik@jetpack": {minVersion: "6.0.1-signed.1-signed", installs: 54},
+  "restart@restart.org": {minVersion: "0.5.1-signed.1-signed", installs: 54},
+  "webmaster@keep-tube.com": {minVersion: "1.2.1-signed.1-signed", installs: 54},
+  "eliteproxyswitcher@my-proxy.com": {minVersion: "1.2.0.2.1-signed.1-signed", installs: 53},
+  "foxfilter@inspiredeffect.net": {minVersion: "7.7.1-signed.1-signed", installs: 53},
+  "searchprivacy@searchprivacy.co": {minVersion: "1.15", installs: 53},
+  "SignPlugin@pekao.pl": {minVersion: "1.4.0.73", installs: 53},
+  "{15fe27f3-e5ab-2d59-4c5c-dadc7945bdbd}": {minVersion: "2.1.1.1-signed.1-signed", installs: 52},
+  "ipfuck@p4ul.info": {minVersion: "1.2.1.1-signed.1-signed", installs: 52},
+  "jyboy.yy@gmail.com": {minVersion: "1.0.4.1-signed.1-signed", installs: 52},
+  "MySafeTabs-the-extension1@mozilla.com": {minVersion: "0.1.9", installs: 52},
+  "saiful.neo@gmail.com": {minVersion: "3.0.1-signed.1-signed", installs: 52},
+  "sendtokindle@amazon.com": {minVersion: "1.0.2.76", installs: 52},
+  "smile1Button@amazon.com": {minVersion: "1.0.1-signed.1-signed", installs: 52},
+  "whodeletedme@deleted.io": {minVersion: "0.3.3", installs: 52},
+  "{C0CB8BA3-6C1B-47e8-A6AB-1FAB889562D9}": {minVersion: "0.7.6", installs: 51},
+  "@irctctatkal": {minVersion: "2.0.0", installs: 51},
+  "antgroup@antdownloadmanager.com": {minVersion: "0.1.7", installs: 51},
+  "downloadplan@firefoxmania.uci.cu": {minVersion: "1.3.1-signed.1-signed", installs: 51},
+  "jid1-AoXeeOB4j7kFdA@jetpack": {minVersion: "8.1", installs: 51},
+  "memoryrestart@teamextension.com": {minVersion: "1.18.1-signed.1-signed", installs: 51},
+  "multifox-toolbar-button@rbaldwin": {minVersion: "4.28.1-signed.1-signed", installs: 51},
+  "soaclient@santoso": {minVersion: "0.2.1-signed.1-signed", installs: 51},
+  "speeddns@gmail.com": {minVersion: "0.2.1-signed.1-signed", installs: 51},
+  "windowandtablimiter@weintraut.net": {minVersion: "4.28.1-signed.1-signed", installs: 51},
+  "@Recipes": {minVersion: "0.2.0", installs: 50},
+  "{e6a9a96e-4a08-4719-b9bd-0e91c35aaabc}": {minVersion: "1.3.1.1-signed.1-signed", installs: 50},
+  "autopager@mozilla.org": {minVersion: "0.8.0.10.1-signed.1-signed", installs: 50},
+  "btpersonas@brandthunder.com": {minVersion: "2.0.4.7", installs: 50},
+  "gdrivepanel@alejandrobrizuela.com.ar": {minVersion: "1.0.2.1-signed.1-signed", installs: 50},
+  "jid1-m3kqTBs1zKXXaA@jetpack": {minVersion: "0.2.6.1-signed.1-signed", installs: 50},
+  "qqmail_plugin_for_firefox@tencent.com": {minVersion: "1.0.0.22", installs: 50},
+  "savefileto@mozdev.org": {minVersion: "2.5.5", installs: 50},
+  "seodoctor@prelovac.com": {minVersion: "1.6.5.1-signed.1-signed", installs: 50},
+  "support@todoist.com": {minVersion: "4.0.5", installs: 50},
+  "toolbar_TeoMediaTB@apn.ask.com": {minVersion: "135.3", installs: 50},
+  "txftn@tencent.com": {minVersion: "1.0.0.7", installs: 50},
+};
+
+// ================== END OF LIST FOR 51 ======================
+
+// We use these named policies to correlate the telemetry
+// data with them, in order to understand how each set
+// is behaving in the wild.
+const RolloutPolicy = {
+  // Used during 48 Beta cycle
+  "2a": { addons: set2, webextensions: true },
+  "2b": { addons: set2, webextensions: false },
+
+  // Set agreed for Release 49
+  "49a": { addons: set49Release, webextensions: true },
+  "49b": { addons: set49Release, webextensions: false },
+
+  // Smaller set that can be used for Release 49
+  "49limiteda": { addons: set49PaneOnly, webextensions: true },
+  "49limitedb": { addons: set49PaneOnly, webextensions: false },
+
+  // Beta testing on 50
+  "50allmpc": { addons: [], webextensions: true, mpc: true },
+
+  // Beta testing on 51
+  "51alladdons": { addons: [], webextensions: true, alladdons: true },
+
+  // 51 release
+  "51set1": { addonsv2: set51Release, installs:   50, webextensions: true, mpc: true },
+  "51set2": { addonsv2: set51Release, installs:  100, webextensions: true, mpc: true },
+  "51set3": { addonsv2: set51Release, installs:  300, webextensions: true, mpc: true },
+  "51set4": { addonsv2: set51Release, installs: 1000, webextensions: true, mpc: true },
+
+  // ESR
+  "esrA": { addons: [], mpc: true, webextensions: true },
+  "esrB": { addons: [], mpc: true, webextensions: false },
+  "esrC": { addons: [], mpc: false, webextensions: true },
+
+  "xpcshell-test": { addons: [ADDONS.test1, ADDONS.test2], webextensions: false },
+};
+
+Object.defineProperty(this, "isAddonPartOfE10SRollout", {
+  configurable: false,
+  enumerable: false,
+  writable: false,
+  value: function isAddonPartOfE10SRollout(aAddon) {
+    let blocklist = Preferences.get(PREF_E10S_ADDON_BLOCKLIST, "");
+    let policyId = Preferences.get(PREF_E10S_ADDON_POLICY, "");
+
+    if (!policyId || !RolloutPolicy.hasOwnProperty(policyId)) {
+      return false;
+    }
+
+    if (blocklist && blocklist.indexOf(aAddon.id) > -1) {
+      return false;
+    }
+
+    let policy = RolloutPolicy[policyId];
+
+    if (aAddon.mpcOptedOut == true) {
+      return false;
+    }
+
+    if (policy.alladdons) {
+      return true;
+    }
+
+    if (policy.webextensions && aAddon.type == "webextension") {
+      return true;
+    }
+
+    if (policy.mpc && aAddon.multiprocessCompatible) {
+      return true;
+    }
+
+    if (policy.addonsv2) {
+      if (aAddon.id in policy.addonsv2) {
+        let rolloutAddon = policy.addonsv2[aAddon.id];
+
+        if (rolloutAddon.installs >= policy.installs &&
+            Services.vc.compare(aAddon.version, rolloutAddon.minVersion) >= 0) {
+          return true;
+        }
+      }
+      return false;
+    }
+
+    for (let rolloutAddon of policy.addons) {
+      if (aAddon.id == rolloutAddon.id &&
+          Services.vc.compare(aAddon.version, rolloutAddon.minVersion) >= 0) {
+        return true;
+      }
+    }
+
+    return false;
+  },
+});
diff --git a/toolkit/mozapps/webextensions/internal/GMPProvider.jsm b/toolkit/mozapps/webextensions/internal/GMPProvider.jsm
new file mode 100644
index 000000000..9bb34a7af
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/GMPProvider.jsm
@@ -0,0 +1,699 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+
+this.EXPORTED_SYMBOLS = [];
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/AddonManager.jsm");
+/* globals AddonManagerPrivate*/
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/Preferences.jsm");
+Cu.import("resource://gre/modules/osfile.jsm");
+/* globals OS*/
+Cu.import("resource://gre/modules/Log.jsm");
+Cu.import("resource://gre/modules/Task.jsm");
+Cu.import("resource://gre/modules/GMPUtils.jsm");
+/* globals EME_ADOBE_ID, GMP_PLUGIN_IDS, GMPPrefs, GMPUtils, OPEN_H264_ID, WIDEVINE_ID */
+Cu.import("resource://gre/modules/AppConstants.jsm");
+Cu.import("resource://gre/modules/UpdateUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(
+  this, "GMPInstallManager", "resource://gre/modules/GMPInstallManager.jsm");
+XPCOMUtils.defineLazyModuleGetter(
+  this, "setTimeout", "resource://gre/modules/Timer.jsm");
+
+const URI_EXTENSION_STRINGS  = "chrome://mozapps/locale/extensions/extensions.properties";
+const STRING_TYPE_NAME       = "type.%ID%.name";
+
+const SEC_IN_A_DAY           = 24 * 60 * 60;
+// How long to wait after a user enabled EME before attempting to download CDMs.
+const GMP_CHECK_DELAY        = 10 * 1000; // milliseconds
+
+const NS_GRE_DIR             = "GreD";
+const CLEARKEY_PLUGIN_ID     = "gmp-clearkey";
+const CLEARKEY_VERSION       = "0.1";
+
+const GMP_LICENSE_INFO       = "gmp_license_info";
+const GMP_PRIVACY_INFO       = "gmp_privacy_info";
+const GMP_LEARN_MORE         = "learn_more_label";
+
+const GMP_PLUGINS = [
+  {
+    id:              OPEN_H264_ID,
+    name:            "openH264_name",
+    description:     "openH264_description2",
+    // The following licenseURL is part of an awful hack to include the OpenH264
+    // license without having bug 624602 fixed yet, and intentionally ignores
+    // localisation.
+    licenseURL:      "chrome://mozapps/content/extensions/OpenH264-license.txt",
+    homepageURL:     "http://www.openh264.org/",
+    optionsURL:      "chrome://mozapps/content/extensions/gmpPrefs.xul",
+  },
+  {
+    id:              EME_ADOBE_ID,
+    name:            "eme-adobe_name",
+    description:     "eme-adobe_description",
+    // The following learnMoreURL is another hack to be able to support a SUMO page for this
+    // feature.
+    get learnMoreURL() {
+      return Services.urlFormatter.formatURLPref("app.support.baseURL") + "drm-content";
+    },
+    licenseURL:      "http://help.adobe.com/en_US/primetime/drm/HTML5_CDM_EULA/index.html",
+    homepageURL:     "http://help.adobe.com/en_US/primetime/drm/HTML5_CDM",
+    optionsURL:      "chrome://mozapps/content/extensions/gmpPrefs.xul",
+    isEME:           true,
+  },
+  {
+    id:              WIDEVINE_ID,
+    name:            "widevine_description",
+    // Describe the purpose of both CDMs in the same way.
+    description:     "eme-adobe_description",
+    licenseURL:      "https://www.google.com/policies/privacy/",
+    homepageURL:     "https://www.widevine.com/",
+    optionsURL:      "chrome://mozapps/content/extensions/gmpPrefs.xul",
+    isEME:           true
+  }];
+XPCOMUtils.defineConstant(this, "GMP_PLUGINS", GMP_PLUGINS);
+
+XPCOMUtils.defineLazyGetter(this, "pluginsBundle",
+  () => Services.strings.createBundle("chrome://global/locale/plugins.properties"));
+XPCOMUtils.defineLazyGetter(this, "gmpService",
+  () => Cc["@mozilla.org/gecko-media-plugin-service;1"].getService(Ci.mozIGeckoMediaPluginChromeService));
+
+var messageManager = Cc["@mozilla.org/globalmessagemanager;1"]
+                       .getService(Ci.nsIMessageListenerManager);
+
+var gLogger;
+var gLogAppenderDump = null;
+
+function configureLogging() {
+  if (!gLogger) {
+    gLogger = Log.repository.getLogger("Toolkit.GMP");
+    gLogger.addAppender(new Log.ConsoleAppender(new Log.BasicFormatter()));
+  }
+  gLogger.level = GMPPrefs.get(GMPPrefs.KEY_LOGGING_LEVEL, Log.Level.Warn);
+
+  let logDumping = GMPPrefs.get(GMPPrefs.KEY_LOGGING_DUMP, false);
+  if (logDumping != !!gLogAppenderDump) {
+    if (logDumping) {
+      gLogAppenderDump = new Log.DumpAppender(new Log.BasicFormatter());
+      gLogger.addAppender(gLogAppenderDump);
+    } else {
+      gLogger.removeAppender(gLogAppenderDump);
+      gLogAppenderDump = null;
+    }
+  }
+}
+
+
+
+/**
+ * The GMPWrapper provides the info for the various GMP plugins to public
+ * callers through the API.
+ */
+function GMPWrapper(aPluginInfo) {
+  this._plugin = aPluginInfo;
+  this._log =
+    Log.repository.getLoggerWithMessagePrefix("Toolkit.GMP",
+                                              "GMPWrapper(" +
+                                              this._plugin.id + ") ");
+  Preferences.observe(GMPPrefs.getPrefKey(GMPPrefs.KEY_PLUGIN_ENABLED,
+                                          this._plugin.id),
+                      this.onPrefEnabledChanged, this);
+  Preferences.observe(GMPPrefs.getPrefKey(GMPPrefs.KEY_PLUGIN_VERSION,
+                                          this._plugin.id),
+                      this.onPrefVersionChanged, this);
+  if (this._plugin.isEME) {
+    Preferences.observe(GMPPrefs.KEY_EME_ENABLED,
+                        this.onPrefEMEGlobalEnabledChanged, this);
+    messageManager.addMessageListener("EMEVideo:ContentMediaKeysRequest", this);
+  }
+}
+
+GMPWrapper.prototype = {
+  // An active task that checks for plugin updates and installs them.
+  _updateTask: null,
+  _gmpPath: null,
+  _isUpdateCheckPending: false,
+
+  optionsType: AddonManager.OPTIONS_TYPE_INLINE,
+  get optionsURL() { return this._plugin.optionsURL; },
+
+  set gmpPath(aPath) { this._gmpPath = aPath; },
+  get gmpPath() {
+    if (!this._gmpPath && this.isInstalled) {
+      this._gmpPath = OS.Path.join(OS.Constants.Path.profileDir,
+                                   this._plugin.id,
+                                   GMPPrefs.get(GMPPrefs.KEY_PLUGIN_VERSION,
+                                                null, this._plugin.id));
+    }
+    return this._gmpPath;
+  },
+
+  get id() { return this._plugin.id; },
+  get type() { return "plugin"; },
+  get isGMPlugin() { return true; },
+  get name() { return this._plugin.name; },
+  get creator() { return null; },
+  get homepageURL() { return this._plugin.homepageURL; },
+
+  get description() { return this._plugin.description; },
+  get fullDescription() { return this._plugin.fullDescription; },
+
+  get version() { return GMPPrefs.get(GMPPrefs.KEY_PLUGIN_VERSION, null,
+                                      this._plugin.id); },
+
+  get isActive() {
+    return !this.appDisabled &&
+           !this.userDisabled &&
+           !GMPUtils.isPluginHidden(this._plugin);
+  },
+  get appDisabled() {
+    if (this._plugin.isEME && !GMPPrefs.get(GMPPrefs.KEY_EME_ENABLED, true)) {
+      // If "media.eme.enabled" is false, all EME plugins are disabled.
+      return true;
+    }
+    return false;
+  },
+
+  get userDisabled() {
+    return !GMPPrefs.get(GMPPrefs.KEY_PLUGIN_ENABLED, true, this._plugin.id);
+  },
+  set userDisabled(aVal) { GMPPrefs.set(GMPPrefs.KEY_PLUGIN_ENABLED,
+                                        aVal === false,
+                                        this._plugin.id); },
+
+  get blocklistState() { return Ci.nsIBlocklistService.STATE_NOT_BLOCKED; },
+  get size() { return 0; },
+  get scope() { return AddonManager.SCOPE_APPLICATION; },
+  get pendingOperations() { return AddonManager.PENDING_NONE; },
+
+  get operationsRequiringRestart() { return AddonManager.OP_NEEDS_RESTART_NONE },
+
+  get permissions() {
+    let permissions = 0;
+    if (!this.appDisabled) {
+      permissions |= AddonManager.PERM_CAN_UPGRADE;
+      permissions |= this.userDisabled ? AddonManager.PERM_CAN_ENABLE :
+                                         AddonManager.PERM_CAN_DISABLE;
+    }
+    return permissions;
+  },
+
+  get updateDate() {
+    let time = Number(GMPPrefs.get(GMPPrefs.KEY_PLUGIN_LAST_UPDATE, null,
+                                   this._plugin.id));
+    if (!isNaN(time) && this.isInstalled) {
+      return new Date(time * 1000)
+    }
+    return null;
+  },
+
+  get isCompatible() {
+    return true;
+  },
+
+  get isPlatformCompatible() {
+    return true;
+  },
+
+  get providesUpdatesSecurely() {
+    return true;
+  },
+
+  get foreignInstall() {
+    return false;
+  },
+
+  isCompatibleWith: function(aAppVersion, aPlatformVersion) {
+    return true;
+  },
+
+  get applyBackgroundUpdates() {
+    if (!GMPPrefs.isSet(GMPPrefs.KEY_PLUGIN_AUTOUPDATE, this._plugin.id)) {
+      return AddonManager.AUTOUPDATE_DEFAULT;
+    }
+
+    return GMPPrefs.get(GMPPrefs.KEY_PLUGIN_AUTOUPDATE, true, this._plugin.id) ?
+      AddonManager.AUTOUPDATE_ENABLE : AddonManager.AUTOUPDATE_DISABLE;
+  },
+
+  set applyBackgroundUpdates(aVal) {
+    if (aVal == AddonManager.AUTOUPDATE_DEFAULT) {
+      GMPPrefs.reset(GMPPrefs.KEY_PLUGIN_AUTOUPDATE, this._plugin.id);
+    } else if (aVal == AddonManager.AUTOUPDATE_ENABLE) {
+      GMPPrefs.set(GMPPrefs.KEY_PLUGIN_AUTOUPDATE, true, this._plugin.id);
+    } else if (aVal == AddonManager.AUTOUPDATE_DISABLE) {
+      GMPPrefs.set(GMPPrefs.KEY_PLUGIN_AUTOUPDATE, false, this._plugin.id);
+    }
+  },
+
+  findUpdates: function(aListener, aReason, aAppVersion, aPlatformVersion) {
+    this._log.trace("findUpdates() - " + this._plugin.id + " - reason=" +
+                    aReason);
+
+    AddonManagerPrivate.callNoUpdateListeners(this, aListener);
+
+    if (aReason === AddonManager.UPDATE_WHEN_PERIODIC_UPDATE) {
+      if (!AddonManager.shouldAutoUpdate(this)) {
+        this._log.trace("findUpdates() - " + this._plugin.id +
+                        " - no autoupdate");
+        return Promise.resolve(false);
+      }
+
+      let secSinceLastCheck =
+        Date.now() / 1000 - Preferences.get(GMPPrefs.KEY_UPDATE_LAST_CHECK, 0);
+      if (secSinceLastCheck <= SEC_IN_A_DAY) {
+        this._log.trace("findUpdates() - " + this._plugin.id +
+                        " - last check was less then a day ago");
+        return Promise.resolve(false);
+      }
+    } else if (aReason !== AddonManager.UPDATE_WHEN_USER_REQUESTED) {
+      this._log.trace("findUpdates() - " + this._plugin.id +
+                      " - the given reason to update is not supported");
+      return Promise.resolve(false);
+    }
+
+    if (this._updateTask !== null) {
+      this._log.trace("findUpdates() - " + this._plugin.id +
+                      " - update task already running");
+      return this._updateTask;
+    }
+
+    this._updateTask = Task.spawn(function*() {
+      this._log.trace("findUpdates() - updateTask");
+      try {
+        let installManager = new GMPInstallManager();
+        let res = yield installManager.checkForAddons();
+        let update = res.gmpAddons.find(addon => addon.id === this._plugin.id);
+        if (update && update.isValid && !update.isInstalled) {
+          this._log.trace("findUpdates() - found update for " +
+                          this._plugin.id + ", installing");
+          yield installManager.installAddon(update);
+        } else {
+          this._log.trace("findUpdates() - no updates for " + this._plugin.id);
+        }
+        this._log.info("findUpdates() - updateTask succeeded for " +
+                       this._plugin.id);
+      } catch (e) {
+        this._log.error("findUpdates() - updateTask for " + this._plugin.id +
+                        " threw", e);
+        throw e;
+      } finally {
+        this._updateTask = null;
+        return true;
+      }
+    }.bind(this));
+
+    return this._updateTask;
+  },
+
+  get pluginMimeTypes() { return []; },
+  get pluginLibraries() {
+    if (this.isInstalled) {
+      let path = this.version;
+      return [path];
+    }
+    return [];
+  },
+  get pluginFullpath() {
+    if (this.isInstalled) {
+      let path = OS.Path.join(OS.Constants.Path.profileDir,
+                              this._plugin.id,
+                              this.version);
+      return [path];
+    }
+    return [];
+  },
+
+  get isInstalled() {
+    return this.version && this.version.length > 0;
+  },
+
+  _handleEnabledChanged: function() {
+    this._log.info("_handleEnabledChanged() id=" +
+      this._plugin.id + " isActive=" + this.isActive);
+
+    AddonManagerPrivate.callAddonListeners(this.isActive ?
+                                           "onEnabling" : "onDisabling",
+                                           this, false);
+    if (this._gmpPath) {
+      if (this.isActive) {
+        this._log.info("onPrefEnabledChanged() - adding gmp directory " +
+                       this._gmpPath);
+        gmpService.addPluginDirectory(this._gmpPath);
+      } else {
+        this._log.info("onPrefEnabledChanged() - removing gmp directory " +
+                       this._gmpPath);
+        gmpService.removePluginDirectory(this._gmpPath);
+      }
+    }
+    AddonManagerPrivate.callAddonListeners(this.isActive ?
+                                           "onEnabled" : "onDisabled",
+                                           this);
+  },
+
+  onPrefEMEGlobalEnabledChanged: function() {
+    this._log.info("onPrefEMEGlobalEnabledChanged() id=" + this._plugin.id +
+      " appDisabled=" + this.appDisabled + " isActive=" + this.isActive +
+      " hidden=" + GMPUtils.isPluginHidden(this._plugin));
+
+    AddonManagerPrivate.callAddonListeners("onPropertyChanged", this,
+                                           ["appDisabled"]);
+    // If EME or the GMP itself are disabled, uninstall the GMP.
+    // Otherwise, check for updates, so we download and install the GMP.
+    if (this.appDisabled) {
+      this.uninstallPlugin();
+    } else if (!GMPUtils.isPluginHidden(this._plugin)) {
+      AddonManagerPrivate.callInstallListeners("onExternalInstall", null, this,
+                                               null, false);
+      AddonManagerPrivate.callAddonListeners("onInstalling", this, false);
+      AddonManagerPrivate.callAddonListeners("onInstalled", this);
+      this.checkForUpdates(GMP_CHECK_DELAY);
+    }
+    if (!this.userDisabled) {
+      this._handleEnabledChanged();
+    }
+  },
+
+  checkForUpdates: function(delay) {
+    if (this._isUpdateCheckPending) {
+      return;
+    }
+    this._isUpdateCheckPending = true;
+    GMPPrefs.reset(GMPPrefs.KEY_UPDATE_LAST_CHECK, null);
+    // Delay this in case the user changes his mind and doesn't want to
+    // enable EME after all.
+    setTimeout(() => {
+      if (!this.appDisabled) {
+        let gmpInstallManager = new GMPInstallManager();
+        // We don't really care about the results, if someone is interested
+        // they can check the log.
+        gmpInstallManager.simpleCheckAndInstall().then(null, () => {});
+      }
+      this._isUpdateCheckPending = false;
+    }, delay);
+  },
+
+  receiveMessage: function({target: browser, data: data}) {
+    this._log.trace("receiveMessage() data=" + data);
+    let parsedData;
+    try {
+      parsedData = JSON.parse(data);
+    } catch (ex) {
+      this._log.error("Malformed EME video message with data: " + data);
+      return;
+    }
+    let {status: status, keySystem: keySystem} = parsedData;
+    if (status == "cdm-not-installed") {
+      this.checkForUpdates(0);
+    }
+  },
+
+  onPrefEnabledChanged: function() {
+    if (!this._plugin.isEME || !this.appDisabled) {
+      this._handleEnabledChanged();
+    }
+  },
+
+  onPrefVersionChanged: function() {
+    AddonManagerPrivate.callAddonListeners("onUninstalling", this, false);
+    if (this._gmpPath) {
+      this._log.info("onPrefVersionChanged() - unregistering gmp directory " +
+                     this._gmpPath);
+      gmpService.removeAndDeletePluginDirectory(this._gmpPath, true /* can defer */);
+    }
+    AddonManagerPrivate.callAddonListeners("onUninstalled", this);
+
+    AddonManagerPrivate.callInstallListeners("onExternalInstall", null, this,
+                                             null, false);
+    AddonManagerPrivate.callAddonListeners("onInstalling", this, false);
+    this._gmpPath = null;
+    if (this.isInstalled) {
+      this._gmpPath = OS.Path.join(OS.Constants.Path.profileDir,
+                                   this._plugin.id,
+                                   GMPPrefs.get(GMPPrefs.KEY_PLUGIN_VERSION,
+                                                null, this._plugin.id));
+    }
+    if (this._gmpPath && this.isActive) {
+      this._log.info("onPrefVersionChanged() - registering gmp directory " +
+                     this._gmpPath);
+      gmpService.addPluginDirectory(this._gmpPath);
+    }
+    AddonManagerPrivate.callAddonListeners("onInstalled", this);
+  },
+
+  uninstallPlugin: function() {
+    AddonManagerPrivate.callAddonListeners("onUninstalling", this, false);
+    if (this.gmpPath) {
+      this._log.info("uninstallPlugin() - unregistering gmp directory " +
+                     this.gmpPath);
+      gmpService.removeAndDeletePluginDirectory(this.gmpPath);
+    }
+    GMPPrefs.reset(GMPPrefs.KEY_PLUGIN_VERSION, this.id);
+    GMPPrefs.reset(GMPPrefs.KEY_PLUGIN_ABI, this.id);
+    GMPPrefs.reset(GMPPrefs.KEY_PLUGIN_LAST_UPDATE, this.id);
+    AddonManagerPrivate.callAddonListeners("onUninstalled", this);
+  },
+
+  shutdown: function() {
+    Preferences.ignore(GMPPrefs.getPrefKey(GMPPrefs.KEY_PLUGIN_ENABLED,
+                                           this._plugin.id),
+                       this.onPrefEnabledChanged, this);
+    Preferences.ignore(GMPPrefs.getPrefKey(GMPPrefs.KEY_PLUGIN_VERSION,
+                                           this._plugin.id),
+                       this.onPrefVersionChanged, this);
+    if (this._plugin.isEME) {
+      Preferences.ignore(GMPPrefs.KEY_EME_ENABLED,
+                         this.onPrefEMEGlobalEnabledChanged, this);
+      messageManager.removeMessageListener("EMEVideo:ContentMediaKeysRequest", this);
+    }
+    return this._updateTask;
+  },
+
+  _arePluginFilesOnDisk: function() {
+    let fileExists = function(aGmpPath, aFileName) {
+      let f = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+      let path = OS.Path.join(aGmpPath, aFileName);
+      f.initWithPath(path);
+      return f.exists();
+    };
+
+    let id = this._plugin.id.substring(4);
+    let libName = AppConstants.DLL_PREFIX + id + AppConstants.DLL_SUFFIX;
+    let infoName;
+    if (this._plugin.id == WIDEVINE_ID) {
+      infoName = "manifest.json";
+    } else {
+      infoName = id + ".info";
+    }
+
+    return fileExists(this.gmpPath, libName) &&
+           fileExists(this.gmpPath, infoName) &&
+           (this._plugin.id != EME_ADOBE_ID || fileExists(this.gmpPath, id + ".voucher"));
+  },
+
+  validate: function() {
+    if (!this.isInstalled) {
+      // Not installed -> Valid.
+      return {
+        installed: false,
+        valid: true
+      };
+    }
+
+    let abi = GMPPrefs.get(GMPPrefs.KEY_PLUGIN_ABI, UpdateUtils.ABI, this._plugin.id);
+    if (abi != UpdateUtils.ABI) {
+      // ABI doesn't match. Possibly this is a profile migrated across platforms
+      // or from 32 -> 64 bit.
+      return {
+        installed: true,
+        mismatchedABI: true,
+        valid: false
+      };
+    }
+
+    // Installed -> Check if files are missing.
+    let filesOnDisk = this._arePluginFilesOnDisk();
+    return {
+      installed: true,
+      valid: filesOnDisk
+    };
+  },
+};
+
+var GMPProvider = {
+  get name() { return "GMPProvider"; },
+
+  _plugins: null,
+
+  startup: function() {
+    configureLogging();
+    this._log = Log.repository.getLoggerWithMessagePrefix("Toolkit.GMP",
+                                                          "GMPProvider.");
+    this.buildPluginList();
+    this.ensureProperCDMInstallState();
+
+    Preferences.observe(GMPPrefs.KEY_LOG_BASE, configureLogging);
+
+    for (let [id, plugin] of this._plugins) {
+      let wrapper = plugin.wrapper;
+      let gmpPath = wrapper.gmpPath;
+      let isEnabled = wrapper.isActive;
+      this._log.trace("startup - enabled=" + isEnabled + ", gmpPath=" +
+                      gmpPath);
+
+      if (gmpPath && isEnabled) {
+        let validation = wrapper.validate();
+        if (validation.mismatchedABI) {
+          this._log.info("startup - gmp " + plugin.id +
+                         " mismatched ABI, uninstalling");
+          wrapper.uninstallPlugin();
+          continue;
+        }
+        if (!validation.valid) {
+          this._log.info("startup - gmp " + plugin.id +
+                         " invalid, uninstalling");
+          wrapper.uninstallPlugin();
+          continue;
+        }
+        this._log.info("startup - adding gmp directory " + gmpPath);
+        try {
+          gmpService.addPluginDirectory(gmpPath);
+        } catch (e) {
+          if (e.name != 'NS_ERROR_NOT_AVAILABLE')
+            throw e;
+          this._log.warn("startup - adding gmp directory failed with " +
+                         e.name + " - sandboxing not available?", e);
+        }
+      }
+    }
+
+    try {
+      let greDir = Services.dirsvc.get(NS_GRE_DIR,
+                                       Ci.nsILocalFile);
+      let clearkeyPath = OS.Path.join(greDir.path,
+                                      CLEARKEY_PLUGIN_ID,
+                                      CLEARKEY_VERSION);
+      this._log.info("startup - adding clearkey CDM directory " +
+                     clearkeyPath);
+      gmpService.addPluginDirectory(clearkeyPath);
+    } catch (e) {
+      this._log.warn("startup - adding clearkey CDM failed", e);
+    }
+  },
+
+  shutdown: function() {
+    this._log.trace("shutdown");
+    Preferences.ignore(GMPPrefs.KEY_LOG_BASE, configureLogging);
+
+    let shutdownTask = Task.spawn(function*() {
+      this._log.trace("shutdown - shutdownTask");
+      let shutdownSucceeded = true;
+
+      for (let plugin of this._plugins.values()) {
+        try {
+          yield plugin.wrapper.shutdown();
+        } catch (e) {
+          shutdownSucceeded = false;
+        }
+      }
+
+      this._plugins = null;
+
+      if (!shutdownSucceeded) {
+        throw new Error("Shutdown failed");
+      }
+    }.bind(this));
+
+    return shutdownTask;
+  },
+
+  getAddonByID: function(aId, aCallback) {
+    if (!this.isEnabled) {
+      aCallback(null);
+      return;
+    }
+
+    let plugin = this._plugins.get(aId);
+    if (plugin && !GMPUtils.isPluginHidden(plugin)) {
+      aCallback(plugin.wrapper);
+    } else {
+      aCallback(null);
+    }
+  },
+
+  getAddonsByTypes: function(aTypes, aCallback) {
+    if (!this.isEnabled ||
+        (aTypes && aTypes.indexOf("plugin") < 0)) {
+      aCallback([]);
+      return;
+    }
+
+    let results = Array.from(this._plugins.values())
+      .filter(p => !GMPUtils.isPluginHidden(p))
+      .map(p => p.wrapper);
+
+    aCallback(results);
+  },
+
+  get isEnabled() {
+    return GMPPrefs.get(GMPPrefs.KEY_PROVIDER_ENABLED, false);
+  },
+
+  generateFullDescription: function(aPlugin) {
+    let rv = [];
+    for (let [urlProp, labelId] of [["learnMoreURL", GMP_LEARN_MORE],
+                                    ["licenseURL", aPlugin.id == WIDEVINE_ID ?
+                                     GMP_PRIVACY_INFO : GMP_LICENSE_INFO]]) {
+      if (aPlugin[urlProp]) {
+        let label = pluginsBundle.GetStringFromName(labelId);
+        rv.push(`<xhtml:a href="${aPlugin[urlProp]}" target="_blank">${label}</xhtml:a>.`);
+      }
+    }
+    return rv.length ? rv.join("<xhtml:br /><xhtml:br />") : undefined;
+  },
+
+  buildPluginList: function() {
+    this._plugins = new Map();
+    for (let aPlugin of GMP_PLUGINS) {
+      let plugin = {
+        id: aPlugin.id,
+        name: pluginsBundle.GetStringFromName(aPlugin.name),
+        description: pluginsBundle.GetStringFromName(aPlugin.description),
+        homepageURL: aPlugin.homepageURL,
+        optionsURL: aPlugin.optionsURL,
+        wrapper: null,
+        isEME: aPlugin.isEME,
+      };
+      plugin.fullDescription = this.generateFullDescription(aPlugin);
+      plugin.wrapper = new GMPWrapper(plugin);
+      this._plugins.set(plugin.id, plugin);
+    }
+  },
+
+  ensureProperCDMInstallState: function() {
+    if (!GMPPrefs.get(GMPPrefs.KEY_EME_ENABLED, true)) {
+      for (let [id, plugin] of this._plugins) {
+        if (plugin.isEME && plugin.wrapper.isInstalled) {
+          gmpService.addPluginDirectory(plugin.wrapper.gmpPath);
+          plugin.wrapper.uninstallPlugin();
+        }
+      }
+    }
+  },
+};
+
+AddonManagerPrivate.registerProvider(GMPProvider, [
+  new AddonManagerPrivate.AddonType("plugin", URI_EXTENSION_STRINGS,
+                                    STRING_TYPE_NAME,
+                                    AddonManager.VIEW_TYPE_LIST, 6000,
+                                    AddonManager.TYPE_SUPPORTS_ASK_TO_ACTIVATE)
+]);
diff --git a/toolkit/mozapps/webextensions/internal/LightweightThemeImageOptimizer.jsm b/toolkit/mozapps/webextensions/internal/LightweightThemeImageOptimizer.jsm
new file mode 100644
index 000000000..49dfa237f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/LightweightThemeImageOptimizer.jsm
@@ -0,0 +1,180 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = ["LightweightThemeImageOptimizer"];
+
+const Cu = Components.utils;
+const Ci = Components.interfaces;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "Services",
+  "resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
+  "resource://gre/modules/FileUtils.jsm");
+
+const ORIGIN_TOP_RIGHT = 1;
+const ORIGIN_BOTTOM_LEFT = 2;
+
+this.LightweightThemeImageOptimizer = {
+  optimize: function(aThemeData, aScreen) {
+    let data = Object.assign({}, aThemeData);
+    if (!data.headerURL) {
+      return data;
+    }
+
+    data.headerURL = ImageCropper.getCroppedImageURL(
+      data.headerURL, aScreen, ORIGIN_TOP_RIGHT);
+
+    if (data.footerURL) {
+      data.footerURL = ImageCropper.getCroppedImageURL(
+        data.footerURL, aScreen, ORIGIN_BOTTOM_LEFT);
+    }
+
+    return data;
+  },
+
+  purge: function() {
+    let dir = FileUtils.getDir("ProfD", ["lwtheme"]);
+    dir.followLinks = false;
+    try {
+      dir.remove(true);
+    } catch (e) {}
+  }
+};
+
+Object.freeze(LightweightThemeImageOptimizer);
+
+var ImageCropper = {
+  _inProgress: {},
+
+  getCroppedImageURL: function(aImageURL, aScreen, aOrigin) {
+    // We can crop local files, only.
+    if (!aImageURL.startsWith("file://")) {
+      return aImageURL;
+    }
+
+    // Generate the cropped image's file name using its
+    // base name and the current screen size.
+    let uri = Services.io.newURI(aImageURL, null, null);
+    let file = uri.QueryInterface(Ci.nsIFileURL).file;
+
+    // Make sure the source file exists.
+    if (!file.exists()) {
+      return aImageURL;
+    }
+
+    let fileName = file.leafName + "-" + aScreen.width + "x" + aScreen.height;
+    let croppedFile = FileUtils.getFile("ProfD", ["lwtheme", fileName]);
+
+    // If we have a local file that is not in progress, return it.
+    if (croppedFile.exists() && !(croppedFile.path in this._inProgress)) {
+      let fileURI = Services.io.newFileURI(croppedFile);
+
+      // Copy the query part to avoid wrong caching.
+      fileURI.QueryInterface(Ci.nsIURL).query = uri.query;
+      return fileURI.spec;
+    }
+
+    // Crop the given image in the background.
+    this._crop(uri, croppedFile, aScreen, aOrigin);
+
+    // Return the original image while we're waiting for the cropped version
+    // to be written to disk.
+    return aImageURL;
+  },
+
+  _crop: function(aURI, aTargetFile, aScreen, aOrigin) {
+    let inProgress = this._inProgress;
+    inProgress[aTargetFile.path] = true;
+
+    function resetInProgress() {
+      delete inProgress[aTargetFile.path];
+    }
+
+    ImageFile.read(aURI, function(aInputStream, aContentType) {
+      if (aInputStream && aContentType) {
+        let image = ImageTools.decode(aInputStream, aContentType);
+        if (image && image.width && image.height) {
+          let stream = ImageTools.encode(image, aScreen, aOrigin, aContentType);
+          if (stream) {
+            ImageFile.write(aTargetFile, stream, resetInProgress);
+            return;
+          }
+        }
+      }
+
+      resetInProgress();
+    });
+  }
+};
+
+var ImageFile = {
+  read: function(aURI, aCallback) {
+    this._netUtil.asyncFetch({
+      uri: aURI,
+      loadUsingSystemPrincipal: true,
+      contentPolicyType: Ci.nsIContentPolicy.TYPE_INTERNAL_IMAGE
+    }, function(aInputStream, aStatus, aRequest) {
+        if (Components.isSuccessCode(aStatus) && aRequest instanceof Ci.nsIChannel) {
+          let channel = aRequest.QueryInterface(Ci.nsIChannel);
+          aCallback(aInputStream, channel.contentType);
+        } else {
+          aCallback();
+        }
+      });
+  },
+
+  write: function(aFile, aInputStream, aCallback) {
+    let fos = FileUtils.openSafeFileOutputStream(aFile);
+    this._netUtil.asyncCopy(aInputStream, fos, function(aResult) {
+      FileUtils.closeSafeFileOutputStream(fos);
+
+      // Remove the file if writing was not successful.
+      if (!Components.isSuccessCode(aResult)) {
+        try {
+          aFile.remove(false);
+        } catch (e) {}
+      }
+
+      aCallback();
+    });
+  }
+};
+
+XPCOMUtils.defineLazyModuleGetter(ImageFile, "_netUtil",
+  "resource://gre/modules/NetUtil.jsm", "NetUtil");
+
+var ImageTools = {
+  decode: function(aInputStream, aContentType) {
+    let outParam = {value: null};
+
+    try {
+      this._imgTools.decodeImageData(aInputStream, aContentType, outParam);
+    } catch (e) {}
+
+    return outParam.value;
+  },
+
+  encode: function(aImage, aScreen, aOrigin, aContentType) {
+    let stream;
+    let width = Math.min(aImage.width, aScreen.width);
+    let height = Math.min(aImage.height, aScreen.height);
+    let x = aOrigin == ORIGIN_TOP_RIGHT ? aImage.width - width : 0;
+
+    try {
+      stream = this._imgTools.encodeCroppedImage(aImage, aContentType, x, 0,
+                                                 width, height);
+    } catch (e) {}
+
+    return stream;
+  }
+};
+
+XPCOMUtils.defineLazyServiceGetter(ImageTools, "_imgTools",
+  "@mozilla.org/image/tools;1", "imgITools");
+
diff --git a/toolkit/mozapps/webextensions/internal/PluginProvider.jsm b/toolkit/mozapps/webextensions/internal/PluginProvider.jsm
new file mode 100644
index 000000000..075159a9a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/PluginProvider.jsm
@@ -0,0 +1,600 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+
+this.EXPORTED_SYMBOLS = [];
+
+Cu.import("resource://gre/modules/AddonManager.jsm");
+/* globals AddonManagerPrivate*/
+Cu.import("resource://gre/modules/Services.jsm");
+
+const URI_EXTENSION_STRINGS  = "chrome://mozapps/locale/extensions/extensions.properties";
+const STRING_TYPE_NAME       = "type.%ID%.name";
+const LIST_UPDATED_TOPIC     = "plugins-list-updated";
+const FLASH_MIME_TYPE        = "application/x-shockwave-flash";
+
+Cu.import("resource://gre/modules/Log.jsm");
+const LOGGER_ID = "addons.plugins";
+
+// Create a new logger for use by the Addons Plugin Provider
+// (Requires AddonManager.jsm)
+var logger = Log.repository.getLogger(LOGGER_ID);
+
+function getIDHashForString(aStr) {
+  // return the two-digit hexadecimal code for a byte
+  let toHexString = charCode => ("0" + charCode.toString(16)).slice(-2);
+
+  let hasher = Cc["@mozilla.org/security/hash;1"].
+               createInstance(Ci.nsICryptoHash);
+  hasher.init(Ci.nsICryptoHash.MD5);
+  let stringStream = Cc["@mozilla.org/io/string-input-stream;1"].
+                     createInstance(Ci.nsIStringInputStream);
+                     stringStream.data = aStr ? aStr : "null";
+  hasher.updateFromStream(stringStream, -1);
+
+  // convert the binary hash data to a hex string.
+  let binary = hasher.finish(false);
+  let hash = Array.from(binary, c => toHexString(c.charCodeAt(0)));
+  hash = hash.join("").toLowerCase();
+  return "{" + hash.substr(0, 8) + "-" +
+               hash.substr(8, 4) + "-" +
+               hash.substr(12, 4) + "-" +
+               hash.substr(16, 4) + "-" +
+               hash.substr(20) + "}";
+}
+
+var PluginProvider = {
+  get name() {
+    return "PluginProvider";
+  },
+
+  // A dictionary mapping IDs to names and descriptions
+  plugins: null,
+
+  startup: function() {
+    Services.obs.addObserver(this, LIST_UPDATED_TOPIC, false);
+    Services.obs.addObserver(this, AddonManager.OPTIONS_NOTIFICATION_DISPLAYED, false);
+  },
+
+  /**
+   * Called when the application is shutting down. Only necessary for tests
+   * to be able to simulate a shutdown.
+   */
+  shutdown: function() {
+    this.plugins = null;
+    Services.obs.removeObserver(this, AddonManager.OPTIONS_NOTIFICATION_DISPLAYED);
+    Services.obs.removeObserver(this, LIST_UPDATED_TOPIC);
+  },
+
+  observe: function(aSubject, aTopic, aData) {
+    switch (aTopic) {
+    case AddonManager.OPTIONS_NOTIFICATION_DISPLAYED:
+      this.getAddonByID(aData, function(plugin) {
+        if (!plugin)
+          return;
+
+        let libLabel = aSubject.getElementById("pluginLibraries");
+        libLabel.textContent = plugin.pluginLibraries.join(", ");
+
+        let typeLabel = aSubject.getElementById("pluginMimeTypes"), types = [];
+        for (let type of plugin.pluginMimeTypes) {
+          let extras = [type.description.trim(), type.suffixes].
+                       filter(x => x).join(": ");
+          types.push(type.type + (extras ? " (" + extras + ")" : ""));
+        }
+        typeLabel.textContent = types.join(",\n");
+        let showProtectedModePref = canDisableFlashProtectedMode(plugin);
+        aSubject.getElementById("pluginEnableProtectedMode")
+          .setAttribute("collapsed", showProtectedModePref ? "" : "true");
+      });
+      break;
+    case LIST_UPDATED_TOPIC:
+      if (this.plugins)
+        this.updatePluginList();
+      break;
+    }
+  },
+
+  /**
+   * Creates a PluginWrapper for a plugin object.
+   */
+  buildWrapper: function(aPlugin) {
+    return new PluginWrapper(aPlugin.id,
+                             aPlugin.name,
+                             aPlugin.description,
+                             aPlugin.tags);
+  },
+
+  /**
+   * Called to get an Addon with a particular ID.
+   *
+   * @param  aId
+   *         The ID of the add-on to retrieve
+   * @param  aCallback
+   *         A callback to pass the Addon to
+   */
+  getAddonByID: function(aId, aCallback) {
+    if (!this.plugins)
+      this.buildPluginList();
+
+    if (aId in this.plugins)
+      aCallback(this.buildWrapper(this.plugins[aId]));
+    else
+      aCallback(null);
+  },
+
+  /**
+   * Called to get Addons of a particular type.
+   *
+   * @param  aTypes
+   *         An array of types to fetch. Can be null to get all types.
+   * @param  callback
+   *         A callback to pass an array of Addons to
+   */
+  getAddonsByTypes: function(aTypes, aCallback) {
+    if (aTypes && aTypes.indexOf("plugin") < 0) {
+      aCallback([]);
+      return;
+    }
+
+    if (!this.plugins)
+      this.buildPluginList();
+
+    let results = [];
+
+    for (let id in this.plugins)
+      this.getAddonByID(id, (addon) => results.push(addon));
+
+    aCallback(results);
+  },
+
+  /**
+   * Called to get Addons that have pending operations.
+   *
+   * @param  aTypes
+   *         An array of types to fetch. Can be null to get all types
+   * @param  aCallback
+   *         A callback to pass an array of Addons to
+   */
+  getAddonsWithOperationsByTypes: function(aTypes, aCallback) {
+    aCallback([]);
+  },
+
+  /**
+   * Called to get the current AddonInstalls, optionally restricting by type.
+   *
+   * @param  aTypes
+   *         An array of types or null to get all types
+   * @param  aCallback
+   *         A callback to pass the array of AddonInstalls to
+   */
+  getInstallsByTypes: function(aTypes, aCallback) {
+    aCallback([]);
+  },
+
+  /**
+   * Builds a list of the current plugins reported by the plugin host
+   *
+   * @return a dictionary of plugins indexed by our generated ID
+   */
+  getPluginList: function() {
+    let tags = Cc["@mozilla.org/plugin/host;1"].
+               getService(Ci.nsIPluginHost).
+               getPluginTags({});
+
+    let list = {};
+    let seenPlugins = {};
+    for (let tag of tags) {
+      if (!(tag.name in seenPlugins))
+        seenPlugins[tag.name] = {};
+      if (!(tag.description in seenPlugins[tag.name])) {
+        let plugin = {
+          id: getIDHashForString(tag.name + tag.description),
+          name: tag.name,
+          description: tag.description,
+          tags: [tag]
+        };
+
+        seenPlugins[tag.name][tag.description] = plugin;
+        list[plugin.id] = plugin;
+      }
+      else {
+        seenPlugins[tag.name][tag.description].tags.push(tag);
+      }
+    }
+
+    return list;
+  },
+
+  /**
+   * Builds the list of known plugins from the plugin host
+   */
+  buildPluginList: function() {
+    this.plugins = this.getPluginList();
+  },
+
+  /**
+   * Updates the plugins from the plugin host by comparing the current plugins
+   * to the last known list sending out any necessary API notifications for
+   * changes.
+   */
+  updatePluginList: function() {
+    let newList = this.getPluginList();
+
+    let lostPlugins = Object.keys(this.plugins).filter(id => !(id in newList)).
+                      map(id => this.buildWrapper(this.plugins[id]));
+    let newPlugins = Object.keys(newList).filter(id => !(id in this.plugins)).
+                     map(id => this.buildWrapper(newList[id]));
+    let matchedIDs = Object.keys(newList).filter(id => id in this.plugins);
+
+    // The plugin host generates new tags for every plugin after a scan and
+    // if the plugin's filename has changed then the disabled state won't have
+    // been carried across, send out notifications for anything that has
+    // changed (see bug 830267).
+    let changedWrappers = [];
+    for (let id of matchedIDs) {
+      let oldWrapper = this.buildWrapper(this.plugins[id]);
+      let newWrapper = this.buildWrapper(newList[id]);
+
+      if (newWrapper.isActive != oldWrapper.isActive) {
+        AddonManagerPrivate.callAddonListeners(newWrapper.isActive ?
+                                               "onEnabling" : "onDisabling",
+                                               newWrapper, false);
+        changedWrappers.push(newWrapper);
+      }
+    }
+
+    // Notify about new installs
+    for (let plugin of newPlugins) {
+      AddonManagerPrivate.callInstallListeners("onExternalInstall", null,
+                                               plugin, null, false);
+      AddonManagerPrivate.callAddonListeners("onInstalling", plugin, false);
+    }
+
+    // Notify for any plugins that have vanished.
+    for (let plugin of lostPlugins)
+      AddonManagerPrivate.callAddonListeners("onUninstalling", plugin, false);
+
+    this.plugins = newList;
+
+    // Signal that new installs are complete
+    for (let plugin of newPlugins)
+      AddonManagerPrivate.callAddonListeners("onInstalled", plugin);
+
+    // Signal that enables/disables are complete
+    for (let wrapper of changedWrappers) {
+      AddonManagerPrivate.callAddonListeners(wrapper.isActive ?
+                                             "onEnabled" : "onDisabled",
+                                             wrapper);
+    }
+
+    // Signal that uninstalls are complete
+    for (let plugin of lostPlugins)
+      AddonManagerPrivate.callAddonListeners("onUninstalled", plugin);
+  }
+};
+
+function isFlashPlugin(aPlugin) {
+  for (let type of aPlugin.pluginMimeTypes) {
+    if (type.type == FLASH_MIME_TYPE) {
+      return true;
+    }
+  }
+  return false;
+}
+// Protected mode is win32-only, not win64
+function canDisableFlashProtectedMode(aPlugin) {
+  return isFlashPlugin(aPlugin) && Services.appinfo.XPCOMABI == "x86-msvc";
+}
+
+const wrapperMap = new WeakMap();
+let pluginFor = wrapper => wrapperMap.get(wrapper);
+
+/**
+ * The PluginWrapper wraps a set of nsIPluginTags to provide the data visible to
+ * public callers through the API.
+ */
+function PluginWrapper(id, name, description, tags) {
+  wrapperMap.set(this, { id, name, description, tags });
+}
+
+PluginWrapper.prototype = {
+  get id() {
+    return pluginFor(this).id;
+  },
+
+  get type() {
+    return "plugin";
+  },
+
+  get name() {
+    return pluginFor(this).name;
+  },
+
+  get creator() {
+    return null;
+  },
+
+  get description() {
+    return pluginFor(this).description.replace(/<\/?[a-z][^>]*>/gi, " ");
+  },
+
+  get version() {
+    let { tags: [tag] } = pluginFor(this);
+    return tag.version;
+  },
+
+  get homepageURL() {
+    let { description } = pluginFor(this);
+    if (/<A\s+HREF=[^>]*>/i.test(description))
+      return /<A\s+HREF=["']?([^>"'\s]*)/i.exec(description)[1];
+    return null;
+  },
+
+  get isActive() {
+    let { tags: [tag] } = pluginFor(this);
+    return !tag.blocklisted && !tag.disabled;
+  },
+
+  get appDisabled() {
+    let { tags: [tag] } = pluginFor(this);
+    return tag.blocklisted;
+  },
+
+  get userDisabled() {
+    let { tags: [tag] } = pluginFor(this);
+    if (tag.disabled)
+      return true;
+
+    if ((Services.prefs.getBoolPref("plugins.click_to_play") && tag.clicktoplay) ||
+        this.blocklistState == Ci.nsIBlocklistService.STATE_VULNERABLE_UPDATE_AVAILABLE ||
+        this.blocklistState == Ci.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE)
+      return AddonManager.STATE_ASK_TO_ACTIVATE;
+
+    return false;
+  },
+
+  set userDisabled(val) {
+    let previousVal = this.userDisabled;
+    if (val === previousVal)
+      return val;
+
+    let { tags } = pluginFor(this);
+
+    for (let tag of tags) {
+      if (val === true)
+        tag.enabledState = Ci.nsIPluginTag.STATE_DISABLED;
+      else if (val === false)
+        tag.enabledState = Ci.nsIPluginTag.STATE_ENABLED;
+      else if (val == AddonManager.STATE_ASK_TO_ACTIVATE)
+        tag.enabledState = Ci.nsIPluginTag.STATE_CLICKTOPLAY;
+    }
+
+    // If 'userDisabled' was 'true' and we're going to a state that's not
+    // that, we're enabling, so call those listeners.
+    if (previousVal === true && val !== true) {
+      AddonManagerPrivate.callAddonListeners("onEnabling", this, false);
+      AddonManagerPrivate.callAddonListeners("onEnabled", this);
+    }
+
+    // If 'userDisabled' was not 'true' and we're going to a state where
+    // it is, we're disabling, so call those listeners.
+    if (previousVal !== true && val === true) {
+      AddonManagerPrivate.callAddonListeners("onDisabling", this, false);
+      AddonManagerPrivate.callAddonListeners("onDisabled", this);
+    }
+
+    // If the 'userDisabled' value involved AddonManager.STATE_ASK_TO_ACTIVATE,
+    // call the onPropertyChanged listeners.
+    if (previousVal == AddonManager.STATE_ASK_TO_ACTIVATE ||
+        val == AddonManager.STATE_ASK_TO_ACTIVATE) {
+      AddonManagerPrivate.callAddonListeners("onPropertyChanged", this, ["userDisabled"]);
+    }
+
+    return val;
+  },
+
+  get blocklistState() {
+    let { tags: [tag] } = pluginFor(this);
+    let bs = Cc["@mozilla.org/extensions/blocklist;1"].
+             getService(Ci.nsIBlocklistService);
+    return bs.getPluginBlocklistState(tag);
+  },
+
+  get blocklistURL() {
+    let { tags: [tag] } = pluginFor(this);
+    let bs = Cc["@mozilla.org/extensions/blocklist;1"].
+             getService(Ci.nsIBlocklistService);
+    return bs.getPluginBlocklistURL(tag);
+  },
+
+  get size() {
+    function getDirectorySize(aFile) {
+      let size = 0;
+      let entries = aFile.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
+      let entry;
+      while ((entry = entries.nextFile)) {
+        if (entry.isSymlink() || !entry.isDirectory())
+          size += entry.fileSize;
+        else
+          size += getDirectorySize(entry);
+      }
+      entries.close();
+      return size;
+    }
+
+    let size = 0;
+    let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+    for (let tag of pluginFor(this).tags) {
+      file.initWithPath(tag.fullpath);
+      if (file.isDirectory())
+        size += getDirectorySize(file);
+      else
+        size += file.fileSize;
+    }
+    return size;
+  },
+
+  get pluginLibraries() {
+    let libs = [];
+    for (let tag of pluginFor(this).tags)
+      libs.push(tag.filename);
+    return libs;
+  },
+
+  get pluginFullpath() {
+    let paths = [];
+    for (let tag of pluginFor(this).tags)
+      paths.push(tag.fullpath);
+    return paths;
+  },
+
+  get pluginMimeTypes() {
+    let types = [];
+    for (let tag of pluginFor(this).tags) {
+      let mimeTypes = tag.getMimeTypes({});
+      let mimeDescriptions = tag.getMimeDescriptions({});
+      let extensions = tag.getExtensions({});
+      for (let i = 0; i < mimeTypes.length; i++) {
+        let type = {};
+        type.type = mimeTypes[i];
+        type.description = mimeDescriptions[i];
+        type.suffixes = extensions[i];
+
+        types.push(type);
+      }
+    }
+    return types;
+  },
+
+  get installDate() {
+    let date = 0;
+    for (let tag of pluginFor(this).tags) {
+      date = Math.max(date, tag.lastModifiedTime);
+    }
+    return new Date(date);
+  },
+
+  get scope() {
+    let { tags: [tag] } = pluginFor(this);
+    let path = tag.fullpath;
+    // Plugins inside the application directory are in the application scope
+    let dir = Services.dirsvc.get("APlugns", Ci.nsIFile);
+    if (path.startsWith(dir.path))
+      return AddonManager.SCOPE_APPLICATION;
+
+    // Plugins inside the profile directory are in the profile scope
+    dir = Services.dirsvc.get("ProfD", Ci.nsIFile);
+    if (path.startsWith(dir.path))
+      return AddonManager.SCOPE_PROFILE;
+
+    // Plugins anywhere else in the user's home are in the user scope,
+    // but not all platforms have a home directory.
+    try {
+      dir = Services.dirsvc.get("Home", Ci.nsIFile);
+      if (path.startsWith(dir.path))
+        return AddonManager.SCOPE_USER;
+    } catch (e) {
+      if (!e.result || e.result != Components.results.NS_ERROR_FAILURE)
+        throw e;
+      // Do nothing: missing "Home".
+    }
+
+    // Any other locations are system scope
+    return AddonManager.SCOPE_SYSTEM;
+  },
+
+  get pendingOperations() {
+    return AddonManager.PENDING_NONE;
+  },
+
+  get operationsRequiringRestart() {
+    return AddonManager.OP_NEEDS_RESTART_NONE;
+  },
+
+  get permissions() {
+    let { tags: [tag] } = pluginFor(this);
+    let permissions = 0;
+    if (tag.isEnabledStateLocked) {
+      return permissions;
+    }
+    if (!this.appDisabled) {
+
+      if (this.userDisabled !== true)
+        permissions |= AddonManager.PERM_CAN_DISABLE;
+
+      let blocklistState = this.blocklistState;
+      let isCTPBlocklisted =
+        (blocklistState == Ci.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE ||
+         blocklistState == Ci.nsIBlocklistService.STATE_VULNERABLE_UPDATE_AVAILABLE);
+
+      if (this.userDisabled !== AddonManager.STATE_ASK_TO_ACTIVATE &&
+          (Services.prefs.getBoolPref("plugins.click_to_play") ||
+           isCTPBlocklisted)) {
+        permissions |= AddonManager.PERM_CAN_ASK_TO_ACTIVATE;
+      }
+
+      if (this.userDisabled !== false && !isCTPBlocklisted) {
+        permissions |= AddonManager.PERM_CAN_ENABLE;
+      }
+    }
+    return permissions;
+  },
+
+  get optionsType() {
+    if (canDisableFlashProtectedMode(this)) {
+      return AddonManager.OPTIONS_TYPE_INLINE;
+    }
+    return AddonManager.OPTIONS_TYPE_INLINE_INFO;
+  },
+
+  get optionsURL() {
+    return "chrome://mozapps/content/extensions/pluginPrefs.xul";
+  },
+
+  get updateDate() {
+    return this.installDate;
+  },
+
+  get isCompatible() {
+    return true;
+  },
+
+  get isPlatformCompatible() {
+    return true;
+  },
+
+  get providesUpdatesSecurely() {
+    return true;
+  },
+
+  get foreignInstall() {
+    return true;
+  },
+
+  isCompatibleWith: function(aAppVersion, aPlatformVersion) {
+    return true;
+  },
+
+  findUpdates: function(aListener, aReason, aAppVersion, aPlatformVersion) {
+    if ("onNoCompatibilityUpdateAvailable" in aListener)
+      aListener.onNoCompatibilityUpdateAvailable(this);
+    if ("onNoUpdateAvailable" in aListener)
+      aListener.onNoUpdateAvailable(this);
+    if ("onUpdateFinished" in aListener)
+      aListener.onUpdateFinished(this);
+  }
+};
+
+AddonManagerPrivate.registerProvider(PluginProvider, [
+  new AddonManagerPrivate.AddonType("plugin", URI_EXTENSION_STRINGS,
+                                    STRING_TYPE_NAME,
+                                    AddonManager.VIEW_TYPE_LIST, 6000,
+                                    AddonManager.TYPE_SUPPORTS_ASK_TO_ACTIVATE)
+]);
diff --git a/toolkit/mozapps/webextensions/internal/ProductAddonChecker.jsm b/toolkit/mozapps/webextensions/internal/ProductAddonChecker.jsm
new file mode 100644
index 000000000..f98dd2a94
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/ProductAddonChecker.jsm
@@ -0,0 +1,467 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+const LOCAL_EME_SOURCES = [{
+  "id": "gmp-eme-adobe",
+  "src": "chrome://global/content/gmp-sources/eme-adobe.json"
+}, {
+  "id": "gmp-gmpopenh264",
+  "src": "chrome://global/content/gmp-sources/openh264.json"
+}, {
+  "id": "gmp-widevinecdm",
+  "src": "chrome://global/content/gmp-sources/widevinecdm.json"
+}];
+
+this.EXPORTED_SYMBOLS = [ "ProductAddonChecker" ];
+
+Cu.importGlobalProperties(["XMLHttpRequest"]);
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/Task.jsm");
+Cu.import("resource://gre/modules/Log.jsm");
+Cu.import("resource://gre/modules/CertUtils.jsm");
+/* globals checkCert, BadCertHandler*/
+Cu.import("resource://gre/modules/FileUtils.jsm");
+Cu.import("resource://gre/modules/NetUtil.jsm");
+Cu.import("resource://gre/modules/osfile.jsm");
+
+/* globals GMPPrefs */
+XPCOMUtils.defineLazyModuleGetter(this, "GMPPrefs",
+                                  "resource://gre/modules/GMPUtils.jsm");
+
+/* globals OS */
+
+XPCOMUtils.defineLazyModuleGetter(this, "UpdateUtils",
+                                  "resource://gre/modules/UpdateUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "ServiceRequest",
+                                  "resource://gre/modules/ServiceRequest.jsm");
+
+// This exists so that tests can override the XHR behaviour for downloading
+// the addon update XML file.
+var CreateXHR = function() {
+  return Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].
+  createInstance(Ci.nsISupports);
+}
+
+var logger = Log.repository.getLogger("addons.productaddons");
+
+/**
+ * Number of milliseconds after which we need to cancel `downloadXML`.
+ *
+ * Bug 1087674 suggests that the XHR we use in `downloadXML` may
+ * never terminate in presence of network nuisances (e.g. strange
+ * antivirus behavior). This timeout is a defensive measure to ensure
+ * that we fail cleanly in such case.
+ */
+const TIMEOUT_DELAY_MS = 20000;
+// Chunk size for the incremental downloader
+const DOWNLOAD_CHUNK_BYTES_SIZE = 300000;
+// Incremental downloader interval
+const DOWNLOAD_INTERVAL  = 0;
+// How much of a file to read into memory at a time for hashing
+const HASH_CHUNK_SIZE = 8192;
+
+/**
+ * Gets the status of an XMLHttpRequest either directly or from its underlying
+ * channel.
+ *
+ * @param  request
+ *         The XMLHttpRequest.
+ * @return an integer status value.
+ */
+function getRequestStatus(request) {
+  let status = null;
+  try {
+    status = request.status;
+  }
+  catch (e) {
+  }
+
+  if (status != null) {
+    return status;
+  }
+
+  return request.channel.QueryInterface(Ci.nsIRequest).status;
+}
+
+/**
+ * Downloads an XML document from a URL optionally testing the SSL certificate
+ * for certain attributes.
+ *
+ * @param  url
+ *         The url to download from.
+ * @param  allowNonBuiltIn
+ *         Whether to trust SSL certificates without a built-in CA issuer.
+ * @param  allowedCerts
+ *         The list of certificate attributes to match the SSL certificate
+ *         against or null to skip checks.
+ * @return a promise that resolves to the DOM document downloaded or rejects
+ *         with a JS exception in case of error.
+ */
+function downloadXML(url, allowNonBuiltIn = false, allowedCerts = null) {
+  return new Promise((resolve, reject) => {
+    let request = CreateXHR();
+    // This is here to let unit test code override XHR
+    if (request.wrappedJSObject) {
+      request = request.wrappedJSObject;
+    }
+    request.open("GET", url, true);
+    request.channel.notificationCallbacks = new BadCertHandler(allowNonBuiltIn);
+    // Prevent the request from reading from the cache.
+    request.channel.loadFlags |= Ci.nsIRequest.LOAD_BYPASS_CACHE;
+    // Prevent the request from writing to the cache.
+    request.channel.loadFlags |= Ci.nsIRequest.INHIBIT_CACHING;
+    // Use conservative TLS settings. See bug 1325501.
+    // TODO move to ServiceRequest.
+    if (request.channel instanceof Ci.nsIHttpChannelInternal) {
+      request.channel.QueryInterface(Ci.nsIHttpChannelInternal).beConservative = true;
+    }
+    request.timeout = TIMEOUT_DELAY_MS;
+
+    request.overrideMimeType("text/xml");
+    // The Cache-Control header is only interpreted by proxies and the
+    // final destination. It does not help if a resource is already
+    // cached locally.
+    request.setRequestHeader("Cache-Control", "no-cache");
+    // HTTP/1.0 servers might not implement Cache-Control and
+    // might only implement Pragma: no-cache
+    request.setRequestHeader("Pragma", "no-cache");
+
+    let fail = (event) => {
+      let request = event.target;
+      let status = getRequestStatus(request);
+      let message = "Failed downloading XML, status: " + status +  ", reason: " + event.type;
+      logger.warn(message);
+      let ex = new Error(message);
+      ex.status = status;
+      reject(ex);
+    };
+
+    let success = (event) => {
+      logger.info("Completed downloading document");
+      let request = event.target;
+
+      try {
+        checkCert(request.channel, allowNonBuiltIn, allowedCerts);
+      } catch (ex) {
+        logger.error("Request failed certificate checks: " + ex);
+        ex.status = getRequestStatus(request);
+        reject(ex);
+        return;
+      }
+
+      resolve(request.responseXML);
+    };
+
+    request.addEventListener("error", fail, false);
+    request.addEventListener("abort", fail, false);
+    request.addEventListener("timeout", fail, false);
+    request.addEventListener("load", success, false);
+
+    logger.info("sending request to: " + url);
+    request.send(null);
+  });
+}
+
+function downloadJSON(uri) {
+  logger.info("fetching config from: " + uri);
+  return new Promise((resolve, reject) => {
+    let xmlHttp = new ServiceRequest({mozAnon: true});
+
+    xmlHttp.onload = function(aResponse) {
+      resolve(JSON.parse(this.responseText));
+    };
+
+    xmlHttp.onerror = function(e) {
+      reject("Fetching " + uri + " results in error code: " + e.target.status);
+    };
+
+    xmlHttp.open("GET", uri);
+    xmlHttp.overrideMimeType("application/json");
+    xmlHttp.send();
+  });
+}
+
+
+/**
+ * Parses a list of add-ons from a DOM document.
+ *
+ * @param  document
+ *         The DOM document to parse.
+ * @return null if there is no <addons> element otherwise an object containing
+ *         an array of the addons listed and a field notifying whether the
+ *         fallback was used.
+ */
+function parseXML(document) {
+  // Check that the root element is correct
+  if (document.documentElement.localName != "updates") {
+    throw new Error("got node name: " + document.documentElement.localName +
+                    ", expected: updates");
+  }
+
+  // Check if there are any addons elements in the updates element
+  let addons = document.querySelector("updates:root > addons");
+  if (!addons) {
+    return null;
+  }
+
+  let results = [];
+  let addonList = document.querySelectorAll("updates:root > addons > addon");
+  for (let addonElement of addonList) {
+    let addon = {};
+
+    for (let name of ["id", "URL", "hashFunction", "hashValue", "version", "size"]) {
+      if (addonElement.hasAttribute(name)) {
+        addon[name] = addonElement.getAttribute(name);
+      }
+    }
+    addon.size = Number(addon.size) || undefined;
+
+    results.push(addon);
+  }
+
+  return {
+    usedFallback: false,
+    gmpAddons: results
+  };
+}
+
+/**
+ * If downloading from the network fails (AUS server is down),
+ * load the sources from local build configuration.
+ */
+function downloadLocalConfig() {
+
+  if (!GMPPrefs.get(GMPPrefs.KEY_UPDATE_ENABLED, true)) {
+    logger.info("Updates are disabled via media.gmp-manager.updateEnabled");
+    return Promise.resolve({usedFallback: true, gmpAddons: []});
+  }
+
+  return Promise.all(LOCAL_EME_SOURCES.map(conf => {
+    return downloadJSON(conf.src).then(addons => {
+
+      let platforms = addons.vendors[conf.id].platforms;
+      let target = Services.appinfo.OS + "_" + UpdateUtils.ABI;
+      let details = null;
+
+      while (!details) {
+        if (!(target in platforms)) {
+          // There was no matching platform so return false, this addon
+          // will be filtered from the results below
+          logger.info("no details found for: " + target);
+          return false;
+        }
+        // Field either has the details of the binary or is an alias
+        // to another build target key that does
+        if (platforms[target].alias) {
+          target = platforms[target].alias;
+        } else {
+          details = platforms[target];
+        }
+      }
+
+      logger.info("found plugin: " + conf.id);
+      return {
+        "id": conf.id,
+        "URL": details.fileUrl,
+        "hashFunction": addons.hashFunction,
+        "hashValue": details.hashValue,
+        "version": addons.vendors[conf.id].version,
+        "size": details.filesize
+      };
+    });
+  })).then(addons => {
+
+    // Some filters may not match this platform so
+    // filter those out
+    addons = addons.filter(x => x !== false);
+
+    return {
+      usedFallback: true,
+      gmpAddons: addons
+    };
+  });
+}
+
+/**
+ * Downloads file from a URL using XHR.
+ *
+ * @param  url
+ *         The url to download from.
+ * @return a promise that resolves to the path of a temporary file or rejects
+ *         with a JS exception in case of error.
+ */
+function downloadFile(url) {
+  return new Promise((resolve, reject) => {
+    let xhr = new XMLHttpRequest();
+    xhr.onload = function(response) {
+      logger.info("downloadXHR File download. status=" + xhr.status);
+      if (xhr.status != 200 && xhr.status != 206) {
+        reject(Components.Exception("File download failed", xhr.status));
+        return;
+      }
+      Task.spawn(function* () {
+        let f = yield OS.File.openUnique(OS.Path.join(OS.Constants.Path.tmpDir, "tmpaddon"));
+        let path = f.path;
+        logger.info(`Downloaded file will be saved to ${path}`);
+        yield f.file.close();
+        yield OS.File.writeAtomic(path, new Uint8Array(xhr.response));
+        return path;
+      }).then(resolve, reject);
+    };
+
+    let fail = (event) => {
+      let request = event.target;
+      let status = getRequestStatus(request);
+      let message = "Failed downloading via XHR, status: " + status +  ", reason: " + event.type;
+      logger.warn(message);
+      let ex = new Error(message);
+      ex.status = status;
+      reject(ex);
+    };
+    xhr.addEventListener("error", fail);
+    xhr.addEventListener("abort", fail);
+
+    xhr.responseType = "arraybuffer";
+    try {
+      xhr.open("GET", url);
+      // Use conservative TLS settings. See bug 1325501.
+      // TODO move to ServiceRequest.
+      if (xhr.channel instanceof Ci.nsIHttpChannelInternal) {
+        xhr.channel.QueryInterface(Ci.nsIHttpChannelInternal).beConservative = true;
+      }
+      xhr.send(null);
+    } catch (ex) {
+      reject(ex);
+    }
+  });
+}
+
+/**
+ * Convert a string containing binary values to hex.
+ */
+function binaryToHex(input) {
+  let result = "";
+  for (let i = 0; i < input.length; ++i) {
+    let hex = input.charCodeAt(i).toString(16);
+    if (hex.length == 1) {
+      hex = "0" + hex;
+    }
+    result += hex;
+  }
+  return result;
+}
+
+/**
+ * Calculates the hash of a file.
+ *
+ * @param  hashFunction
+ *         The type of hash function to use, must be supported by nsICryptoHash.
+ * @param  path
+ *         The path of the file to hash.
+ * @return a promise that resolves to hash of the file or rejects with a JS
+ *         exception in case of error.
+ */
+var computeHash = Task.async(function*(hashFunction, path) {
+  let file = yield OS.File.open(path, { existing: true, read: true });
+  try {
+    let hasher = Cc["@mozilla.org/security/hash;1"].
+                 createInstance(Ci.nsICryptoHash);
+    hasher.initWithString(hashFunction);
+
+    let bytes;
+    do {
+      bytes = yield file.read(HASH_CHUNK_SIZE);
+      hasher.update(bytes, bytes.length);
+    } while (bytes.length == HASH_CHUNK_SIZE);
+
+    return binaryToHex(hasher.finish(false));
+  }
+  finally {
+    yield file.close();
+  }
+});
+
+/**
+ * Verifies that a downloaded file matches what was expected.
+ *
+ * @param  properties
+ *         The properties to check, `size` and `hashFunction` with `hashValue`
+ *         are supported. Any properties missing won't be checked.
+ * @param  path
+ *         The path of the file to check.
+ * @return a promise that resolves if the file matched or rejects with a JS
+ *         exception in case of error.
+ */
+var verifyFile = Task.async(function*(properties, path) {
+  if (properties.size !== undefined) {
+    let stat = yield OS.File.stat(path);
+    if (stat.size != properties.size) {
+      throw new Error("Downloaded file was " + stat.size + " bytes but expected " + properties.size + " bytes.");
+    }
+  }
+
+  if (properties.hashFunction !== undefined) {
+    let expectedDigest = properties.hashValue.toLowerCase();
+    let digest = yield computeHash(properties.hashFunction, path);
+    if (digest != expectedDigest) {
+      throw new Error("Hash was `" + digest + "` but expected `" + expectedDigest +  "`.");
+    }
+  }
+});
+
+const ProductAddonChecker = {
+  /**
+   * Downloads a list of add-ons from a URL optionally testing the SSL
+   * certificate for certain attributes.
+   *
+   * @param  url
+   *         The url to download from.
+   * @param  allowNonBuiltIn
+   *         Whether to trust SSL certificates without a built-in CA issuer.
+   * @param  allowedCerts
+   *         The list of certificate attributes to match the SSL certificate
+   *         against or null to skip checks.
+   * @return a promise that resolves to an object containing the list of add-ons
+   *         and whether the local fallback was used, or rejects with a JS
+   *         exception in case of error.
+   */
+  getProductAddonList: function(url, allowNonBuiltIn = false, allowedCerts = null) {
+    if (!GMPPrefs.get(GMPPrefs.KEY_UPDATE_ENABLED, true)) {
+      logger.info("Updates are disabled via media.gmp-manager.updateEnabled");
+      return Promise.resolve({usedFallback: true, gmpAddons: []});
+    }
+
+    return downloadXML(url, allowNonBuiltIn, allowedCerts)
+      .then(parseXML)
+      .catch(downloadLocalConfig);
+  },
+
+  /**
+   * Downloads an add-on to a local file and checks that it matches the expected
+   * file. The caller is responsible for deleting the temporary file returned.
+   *
+   * @param  addon
+   *         The addon to download.
+   * @return a promise that resolves to the temporary file downloaded or rejects
+   *         with a JS exception in case of error.
+   */
+  downloadAddon: Task.async(function*(addon) {
+    let path = yield downloadFile(addon.URL);
+    try {
+      yield verifyFile(addon, path);
+      return path;
+    }
+    catch (e) {
+      yield OS.File.remove(path);
+      throw e;
+    }
+  })
+}
diff --git a/toolkit/mozapps/webextensions/internal/SpellCheckDictionaryBootstrap.js b/toolkit/mozapps/webextensions/internal/SpellCheckDictionaryBootstrap.js
new file mode 100644
index 000000000..f4f557fc2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/SpellCheckDictionaryBootstrap.js
@@ -0,0 +1,17 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var hunspell, dir;
+
+function startup(data) {
+  hunspell = Components.classes["@mozilla.org/spellchecker/engine;1"]
+                       .getService(Components.interfaces.mozISpellCheckingEngine);
+  dir = data.installPath.clone();
+  dir.append("dictionaries");
+  hunspell.addDirectory(dir);
+}
+
+function shutdown() {
+  hunspell.removeDirectory(dir);
+}
diff --git a/toolkit/mozapps/webextensions/internal/WebExtensionBootstrap.js b/toolkit/mozapps/webextensions/internal/WebExtensionBootstrap.js
new file mode 100644
index 000000000..a920c2eae
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/WebExtensionBootstrap.js
@@ -0,0 +1,39 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+Components.utils.import("resource://gre/modules/Extension.jsm");
+
+var extension;
+
+const BOOTSTRAP_REASON_TO_STRING_MAP = {
+  1: "APP_STARTUP",
+  2: "APP_SHUTDOWN",
+  3: "ADDON_ENABLE",
+  4: "ADDON_DISABLE",
+  5: "ADDON_INSTALL",
+  6: "ADDON_UNINSTALL",
+  7: "ADDON_UPGRADE",
+  8: "ADDON_DOWNGRADE",
+}
+
+function install(data, reason)
+{
+}
+
+function startup(data, reason)
+{
+  extension = new Extension(data, BOOTSTRAP_REASON_TO_STRING_MAP[reason]);
+  extension.startup();
+}
+
+function shutdown(data, reason)
+{
+  extension.shutdown();
+}
+
+function uninstall(data, reason)
+{
+}
diff --git a/toolkit/mozapps/webextensions/internal/XPIProvider.jsm b/toolkit/mozapps/webextensions/internal/XPIProvider.jsm
new file mode 100644
index 000000000..87e09cef1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/XPIProvider.jsm
@@ -0,0 +1,9305 @@
+ /* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+const Cu = Components.utils;
+
+this.EXPORTED_SYMBOLS = ["XPIProvider"];
+
+const CONSTANTS = {};
+Cu.import("resource://gre/modules/addons/AddonConstants.jsm", CONSTANTS);
+const { ADDON_SIGNING, REQUIRE_SIGNING } = CONSTANTS
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/AddonManager.jsm");
+Cu.import("resource://gre/modules/Preferences.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "AddonRepository",
+                                  "resource://gre/modules/addons/AddonRepository.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ChromeManifestParser",
+                                  "resource://gre/modules/ChromeManifestParser.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "LightweightThemeManager",
+                                  "resource://gre/modules/LightweightThemeManager.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ExtensionData",
+                                  "resource://gre/modules/Extension.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ExtensionManagement",
+                                  "resource://gre/modules/ExtensionManagement.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Locale",
+                                  "resource://gre/modules/Locale.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
+                                  "resource://gre/modules/FileUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ZipUtils",
+                                  "resource://gre/modules/ZipUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
+                                  "resource://gre/modules/NetUtil.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "PermissionsUtils",
+                                  "resource://gre/modules/PermissionsUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Promise",
+                                  "resource://gre/modules/Promise.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Task",
+                                  "resource://gre/modules/Task.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "OS",
+                                  "resource://gre/modules/osfile.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "BrowserToolboxProcess",
+                                  "resource://devtools/client/framework/ToolboxProcess.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ConsoleAPI",
+                                  "resource://gre/modules/Console.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ProductAddonChecker",
+                                  "resource://gre/modules/addons/ProductAddonChecker.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "UpdateUtils",
+                                  "resource://gre/modules/UpdateUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AppConstants",
+                                  "resource://gre/modules/AppConstants.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "isAddonPartOfE10SRollout",
+                                  "resource://gre/modules/addons/E10SAddonsRollout.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "LegacyExtensionsUtils",
+                                  "resource://gre/modules/LegacyExtensionsUtils.jsm");
+
+XPCOMUtils.defineLazyServiceGetter(this, "Blocklist",
+                                   "@mozilla.org/extensions/blocklist;1",
+                                   Ci.nsIBlocklistService);
+XPCOMUtils.defineLazyServiceGetter(this,
+                                   "ChromeRegistry",
+                                   "@mozilla.org/chrome/chrome-registry;1",
+                                   "nsIChromeRegistry");
+XPCOMUtils.defineLazyServiceGetter(this,
+                                   "ResProtocolHandler",
+                                   "@mozilla.org/network/protocol;1?name=resource",
+                                   "nsIResProtocolHandler");
+XPCOMUtils.defineLazyServiceGetter(this,
+                                   "AddonPolicyService",
+                                   "@mozilla.org/addons/policy-service;1",
+                                   "nsIAddonPolicyService");
+XPCOMUtils.defineLazyServiceGetter(this,
+                                   "AddonPathService",
+                                   "@mozilla.org/addon-path-service;1",
+                                   "amIAddonPathService");
+
+XPCOMUtils.defineLazyGetter(this, "CertUtils", function() {
+  let certUtils = {};
+  Components.utils.import("resource://gre/modules/CertUtils.jsm", certUtils);
+  return certUtils;
+});
+
+Cu.importGlobalProperties(["URL"]);
+
+const nsIFile = Components.Constructor("@mozilla.org/file/local;1", "nsIFile",
+                                       "initWithPath");
+
+const PREF_DB_SCHEMA                  = "extensions.databaseSchema";
+const PREF_INSTALL_CACHE              = "extensions.installCache";
+const PREF_XPI_STATE                  = "extensions.xpiState";
+const PREF_BOOTSTRAP_ADDONS           = "extensions.bootstrappedAddons";
+const PREF_PENDING_OPERATIONS         = "extensions.pendingOperations";
+const PREF_EM_DSS_ENABLED             = "extensions.dss.enabled";
+const PREF_DSS_SWITCHPENDING          = "extensions.dss.switchPending";
+const PREF_DSS_SKIN_TO_SELECT         = "extensions.lastSelectedSkin";
+const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
+const PREF_EM_UPDATE_URL              = "extensions.update.url";
+const PREF_EM_UPDATE_BACKGROUND_URL   = "extensions.update.background.url";
+const PREF_EM_ENABLED_ADDONS          = "extensions.enabledAddons";
+const PREF_EM_EXTENSION_FORMAT        = "extensions.";
+const PREF_EM_ENABLED_SCOPES          = "extensions.enabledScopes";
+const PREF_EM_SHOW_MISMATCH_UI        = "extensions.showMismatchUI";
+const PREF_XPI_ENABLED                = "xpinstall.enabled";
+const PREF_XPI_WHITELIST_REQUIRED     = "xpinstall.whitelist.required";
+const PREF_XPI_DIRECT_WHITELISTED     = "xpinstall.whitelist.directRequest";
+const PREF_XPI_FILE_WHITELISTED       = "xpinstall.whitelist.fileRequest";
+// xpinstall.signatures.required only supported in dev builds
+const PREF_XPI_SIGNATURES_REQUIRED    = "xpinstall.signatures.required";
+const PREF_XPI_SIGNATURES_DEV_ROOT    = "xpinstall.signatures.dev-root";
+const PREF_XPI_PERMISSIONS_BRANCH     = "xpinstall.";
+const PREF_XPI_UNPACK                 = "extensions.alwaysUnpack";
+const PREF_INSTALL_REQUIREBUILTINCERTS = "extensions.install.requireBuiltInCerts";
+const PREF_INSTALL_REQUIRESECUREORIGIN = "extensions.install.requireSecureOrigin";
+const PREF_INSTALL_DISTRO_ADDONS      = "extensions.installDistroAddons";
+const PREF_BRANCH_INSTALLED_ADDON     = "extensions.installedDistroAddon.";
+const PREF_INTERPOSITION_ENABLED      = "extensions.interposition.enabled";
+const PREF_SYSTEM_ADDON_SET           = "extensions.systemAddonSet";
+const PREF_SYSTEM_ADDON_UPDATE_URL    = "extensions.systemAddon.update.url";
+const PREF_E10S_BLOCK_ENABLE          = "extensions.e10sBlocksEnabling";
+const PREF_E10S_ADDON_BLOCKLIST       = "extensions.e10s.rollout.blocklist";
+const PREF_E10S_ADDON_POLICY          = "extensions.e10s.rollout.policy";
+const PREF_E10S_HAS_NONEXEMPT_ADDON   = "extensions.e10s.rollout.hasAddon";
+
+const PREF_EM_MIN_COMPAT_APP_VERSION      = "extensions.minCompatibleAppVersion";
+const PREF_EM_MIN_COMPAT_PLATFORM_VERSION = "extensions.minCompatiblePlatformVersion";
+
+const PREF_CHECKCOMAT_THEMEOVERRIDE   = "extensions.checkCompatibility.temporaryThemeOverride_minAppVersion";
+
+const PREF_EM_HOTFIX_ID               = "extensions.hotfix.id";
+const PREF_EM_CERT_CHECKATTRIBUTES    = "extensions.hotfix.cert.checkAttributes";
+const PREF_EM_HOTFIX_CERTS            = "extensions.hotfix.certs.";
+
+const URI_EXTENSION_UPDATE_DIALOG     = "chrome://mozapps/content/extensions/update.xul";
+const URI_EXTENSION_STRINGS           = "chrome://mozapps/locale/extensions/extensions.properties";
+
+const STRING_TYPE_NAME                = "type.%ID%.name";
+
+const DIR_EXTENSIONS                  = "extensions";
+const DIR_SYSTEM_ADDONS               = "features";
+const DIR_STAGE                       = "staged";
+const DIR_TRASH                       = "trash";
+
+const FILE_DATABASE                   = "extensions.json";
+const FILE_OLD_CACHE                  = "extensions.cache";
+const FILE_RDF_MANIFEST               = "install.rdf";
+const FILE_WEB_MANIFEST               = "manifest.json";
+const FILE_XPI_ADDONS_LIST            = "extensions.ini";
+
+const KEY_PROFILEDIR                  = "ProfD";
+const KEY_ADDON_APP_DIR               = "XREAddonAppDir";
+const KEY_TEMPDIR                     = "TmpD";
+const KEY_APP_DISTRIBUTION            = "XREAppDist";
+const KEY_APP_FEATURES                = "XREAppFeat";
+
+const KEY_APP_PROFILE                 = "app-profile";
+const KEY_APP_SYSTEM_ADDONS           = "app-system-addons";
+const KEY_APP_SYSTEM_DEFAULTS         = "app-system-defaults";
+const KEY_APP_GLOBAL                  = "app-global";
+const KEY_APP_SYSTEM_LOCAL            = "app-system-local";
+const KEY_APP_SYSTEM_SHARE            = "app-system-share";
+const KEY_APP_SYSTEM_USER             = "app-system-user";
+const KEY_APP_TEMPORARY               = "app-temporary";
+
+const NOTIFICATION_FLUSH_PERMISSIONS  = "flush-pending-permissions";
+const XPI_PERMISSION                  = "install";
+
+const RDFURI_INSTALL_MANIFEST_ROOT    = "urn:mozilla:install-manifest";
+const PREFIX_NS_EM                    = "http://www.mozilla.org/2004/em-rdf#";
+
+const TOOLKIT_ID                      = "toolkit@mozilla.org";
+
+const XPI_SIGNATURE_CHECK_PERIOD      = 24 * 60 * 60;
+
+XPCOMUtils.defineConstant(this, "DB_SCHEMA", 19);
+
+const NOTIFICATION_TOOLBOXPROCESS_LOADED      = "ToolboxProcessLoaded";
+
+// Properties that exist in the install manifest
+const PROP_METADATA      = ["id", "version", "type", "internalName", "updateURL",
+                            "updateKey", "optionsURL", "optionsType", "aboutURL",
+                            "iconURL", "icon64URL"];
+const PROP_LOCALE_SINGLE = ["name", "description", "creator", "homepageURL"];
+const PROP_LOCALE_MULTI  = ["developers", "translators", "contributors"];
+const PROP_TARGETAPP     = ["id", "minVersion", "maxVersion"];
+
+// Properties to cache and reload when an addon installation is pending
+const PENDING_INSTALL_METADATA =
+    ["syncGUID", "targetApplications", "userDisabled", "softDisabled",
+     "existingAddonID", "sourceURI", "releaseNotesURI", "installDate",
+     "updateDate", "applyBackgroundUpdates", "compatibilityOverrides"];
+
+// Note: When adding/changing/removing items here, remember to change the
+// DB schema version to ensure changes are picked up ASAP.
+const STATIC_BLOCKLIST_PATTERNS = [
+  { creator: "Mozilla Corp.",
+    level: Blocklist.STATE_BLOCKED,
+    blockID: "i162" },
+  { creator: "Mozilla.org",
+    level: Blocklist.STATE_BLOCKED,
+    blockID: "i162" }
+];
+
+
+const BOOTSTRAP_REASONS = {
+  APP_STARTUP     : 1,
+  APP_SHUTDOWN    : 2,
+  ADDON_ENABLE    : 3,
+  ADDON_DISABLE   : 4,
+  ADDON_INSTALL   : 5,
+  ADDON_UNINSTALL : 6,
+  ADDON_UPGRADE   : 7,
+  ADDON_DOWNGRADE : 8
+};
+
+// Map new string type identifiers to old style nsIUpdateItem types
+const TYPES = {
+  extension: 2,
+  theme: 4,
+  locale: 8,
+  multipackage: 32,
+  dictionary: 64,
+  experiment: 128,
+};
+
+if (!AppConstants.RELEASE_OR_BETA)
+  TYPES.apiextension = 256;
+
+// Some add-on types that we track internally are presented as other types
+// externally
+const TYPE_ALIASES = {
+  "webextension": "extension",
+  "apiextension": "extension",
+};
+
+const CHROME_TYPES = new Set([
+  "extension",
+  "locale",
+  "experiment",
+]);
+
+const RESTARTLESS_TYPES = new Set([
+  "webextension",
+  "dictionary",
+  "experiment",
+  "locale",
+  "apiextension",
+]);
+
+const SIGNED_TYPES = new Set([
+  "webextension",
+  "extension",
+  "experiment",
+  "apiextension",
+]);
+
+// This is a random number array that can be used as "salt" when generating
+// an automatic ID based on the directory path of an add-on. It will prevent
+// someone from creating an ID for a permanent add-on that could be replaced
+// by a temporary add-on (because that would be confusing, I guess).
+const TEMP_INSTALL_ID_GEN_SESSION =
+  new Uint8Array(Float64Array.of(Math.random()).buffer);
+
+// Whether add-on signing is required.
+function mustSign(aType) {
+  if (!SIGNED_TYPES.has(aType))
+    return false;
+  return REQUIRE_SIGNING || Preferences.get(PREF_XPI_SIGNATURES_REQUIRED, false);
+}
+
+// Keep track of where we are in startup for telemetry
+// event happened during XPIDatabase.startup()
+const XPI_STARTING = "XPIStarting";
+// event happened after startup() but before the final-ui-startup event
+const XPI_BEFORE_UI_STARTUP = "BeforeFinalUIStartup";
+// event happened after final-ui-startup
+const XPI_AFTER_UI_STARTUP = "AfterFinalUIStartup";
+
+const COMPATIBLE_BY_DEFAULT_TYPES = {
+  extension: true,
+  dictionary: true
+};
+
+const MSG_JAR_FLUSH = "AddonJarFlush";
+const MSG_MESSAGE_MANAGER_CACHES_FLUSH = "AddonMessageManagerCachesFlush";
+
+var gGlobalScope = this;
+
+/**
+ * Valid IDs fit this pattern.
+ */
+var gIDTest = /^(\{[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\}|[a-z0-9-\._]*\@[a-z0-9-\._]+)$/i;
+
+Cu.import("resource://gre/modules/Log.jsm");
+const LOGGER_ID = "addons.xpi";
+
+// Create a new logger for use by all objects in this Addons XPI Provider module
+// (Requires AddonManager.jsm)
+var logger = Log.repository.getLogger(LOGGER_ID);
+
+const LAZY_OBJECTS = ["XPIDatabase", "XPIDatabaseReconcile"];
+/* globals XPIDatabase, XPIDatabaseReconcile*/
+
+var gLazyObjectsLoaded = false;
+
+function loadLazyObjects() {
+  let uri = "resource://gre/modules/addons/XPIProviderUtils.js";
+  let scope = Cu.Sandbox(Services.scriptSecurityManager.getSystemPrincipal(), {
+    sandboxName: uri,
+    wantGlobalProperties: ["TextDecoder"],
+  });
+
+  let shared = {
+    ADDON_SIGNING,
+    SIGNED_TYPES,
+    BOOTSTRAP_REASONS,
+    DB_SCHEMA,
+    AddonInternal,
+    XPIProvider,
+    XPIStates,
+    syncLoadManifestFromFile,
+    isUsableAddon,
+    recordAddonTelemetry,
+    applyBlocklistChanges,
+    flushChromeCaches,
+    canRunInSafeMode,
+  }
+
+  for (let key of Object.keys(shared))
+    scope[key] = shared[key];
+
+  Services.scriptloader.loadSubScript(uri, scope);
+
+  for (let name of LAZY_OBJECTS) {
+    delete gGlobalScope[name];
+    gGlobalScope[name] = scope[name];
+  }
+  gLazyObjectsLoaded = true;
+  return scope;
+}
+
+LAZY_OBJECTS.forEach(name => {
+  Object.defineProperty(gGlobalScope, name, {
+    get: function() {
+      let objs = loadLazyObjects();
+      return objs[name];
+    },
+    configurable: true
+  });
+});
+
+
+// Behaves like Promise.all except waits for all promises to resolve/reject
+// before resolving/rejecting itself
+function waitForAllPromises(promises) {
+  return new Promise((resolve, reject) => {
+    let shouldReject = false;
+    let rejectValue = null;
+
+    let newPromises = promises.map(
+      p => p.catch(value => {
+        shouldReject = true;
+        rejectValue = value;
+      })
+    );
+    Promise.all(newPromises)
+           .then((results) => shouldReject ? reject(rejectValue) : resolve(results));
+  });
+}
+
+function findMatchingStaticBlocklistItem(aAddon) {
+  for (let item of STATIC_BLOCKLIST_PATTERNS) {
+    if ("creator" in item && typeof item.creator == "string") {
+      if ((aAddon.defaultLocale && aAddon.defaultLocale.creator == item.creator) ||
+          (aAddon.selectedLocale && aAddon.selectedLocale.creator == item.creator)) {
+        return item;
+      }
+    }
+  }
+  return null;
+}
+
+/**
+ * Converts an iterable of addon objects into a map with the add-on's ID as key.
+ */
+function addonMap(addons) {
+  return new Map(addons.map(a => [a.id, a]));
+}
+
+/**
+ * Sets permissions on a file
+ *
+ * @param  aFile
+ *         The file or directory to operate on.
+ * @param  aPermissions
+ *         The permisions to set
+ */
+function setFilePermissions(aFile, aPermissions) {
+  try {
+    aFile.permissions = aPermissions;
+  }
+  catch (e) {
+    logger.warn("Failed to set permissions " + aPermissions.toString(8) + " on " +
+         aFile.path, e);
+  }
+}
+
+/**
+ * Write a given string to a file
+ *
+ * @param  file
+ *         The nsIFile instance to write into
+ * @param  string
+ *         The string to write
+ */
+function writeStringToFile(file, string) {
+  let stream = Cc["@mozilla.org/network/file-output-stream;1"].
+               createInstance(Ci.nsIFileOutputStream);
+  let converter = Cc["@mozilla.org/intl/converter-output-stream;1"].
+                  createInstance(Ci.nsIConverterOutputStream);
+
+  try {
+    stream.init(file, FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE |
+                            FileUtils.MODE_TRUNCATE, FileUtils.PERMS_FILE,
+                           0);
+    converter.init(stream, "UTF-8", 0, 0x0000);
+    converter.writeString(string);
+  }
+  finally {
+    converter.close();
+    stream.close();
+  }
+}
+
+/**
+ * A safe way to install a file or the contents of a directory to a new
+ * directory. The file or directory is moved or copied recursively and if
+ * anything fails an attempt is made to rollback the entire operation. The
+ * operation may also be rolled back to its original state after it has
+ * completed by calling the rollback method.
+ *
+ * Operations can be chained. Calling move or copy multiple times will remember
+ * the whole set and if one fails all of the operations will be rolled back.
+ */
+function SafeInstallOperation() {
+  this._installedFiles = [];
+  this._createdDirs = [];
+}
+
+SafeInstallOperation.prototype = {
+  _installedFiles: null,
+  _createdDirs: null,
+
+  _installFile: function(aFile, aTargetDirectory, aCopy) {
+    let oldFile = aCopy ? null : aFile.clone();
+    let newFile = aFile.clone();
+    try {
+      if (aCopy) {
+        newFile.copyTo(aTargetDirectory, null);
+        // copyTo does not update the nsIFile with the new.
+        newFile = aTargetDirectory.clone();
+        newFile.append(aFile.leafName);
+        // Windows roaming profiles won't properly sync directories if a new file
+        // has an older lastModifiedTime than a previous file, so update.
+        newFile.lastModifiedTime = Date.now();
+      }
+      else {
+        newFile.moveTo(aTargetDirectory, null);
+      }
+    }
+    catch (e) {
+      logger.error("Failed to " + (aCopy ? "copy" : "move") + " file " + aFile.path +
+            " to " + aTargetDirectory.path, e);
+      throw e;
+    }
+    this._installedFiles.push({ oldFile: oldFile, newFile: newFile });
+  },
+
+  _installDirectory: function(aDirectory, aTargetDirectory, aCopy) {
+    if (aDirectory.contains(aTargetDirectory)) {
+      let err = new Error(`Not installing ${aDirectory} into its own descendent ${aTargetDirectory}`);
+      logger.error(err);
+      throw err;
+    }
+
+    let newDir = aTargetDirectory.clone();
+    newDir.append(aDirectory.leafName);
+    try {
+      newDir.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+    }
+    catch (e) {
+      logger.error("Failed to create directory " + newDir.path, e);
+      throw e;
+    }
+    this._createdDirs.push(newDir);
+
+    // Use a snapshot of the directory contents to avoid possible issues with
+    // iterating over a directory while removing files from it (the YAFFS2
+    // embedded filesystem has this issue, see bug 772238), and to remove
+    // normal files before their resource forks on OSX (see bug 733436).
+    let entries = getDirectoryEntries(aDirectory, true);
+    for (let entry of entries) {
+      try {
+        this._installDirEntry(entry, newDir, aCopy);
+      }
+      catch (e) {
+        logger.error("Failed to " + (aCopy ? "copy" : "move") + " entry " +
+                     entry.path, e);
+        throw e;
+      }
+    }
+
+    // If this is only a copy operation then there is nothing else to do
+    if (aCopy)
+      return;
+
+    // The directory should be empty by this point. If it isn't this will throw
+    // and all of the operations will be rolled back
+    try {
+      setFilePermissions(aDirectory, FileUtils.PERMS_DIRECTORY);
+      aDirectory.remove(false);
+    }
+    catch (e) {
+      logger.error("Failed to remove directory " + aDirectory.path, e);
+      throw e;
+    }
+
+    // Note we put the directory move in after all the file moves so the
+    // directory is recreated before all the files are moved back
+    this._installedFiles.push({ oldFile: aDirectory, newFile: newDir });
+  },
+
+  _installDirEntry: function(aDirEntry, aTargetDirectory, aCopy) {
+    let isDir = null;
+
+    try {
+      isDir = aDirEntry.isDirectory() && !aDirEntry.isSymlink();
+    }
+    catch (e) {
+      // If the file has already gone away then don't worry about it, this can
+      // happen on OSX where the resource fork is automatically moved with the
+      // data fork for the file. See bug 733436.
+      if (e.result == Cr.NS_ERROR_FILE_TARGET_DOES_NOT_EXIST)
+        return;
+
+      logger.error("Failure " + (aCopy ? "copying" : "moving") + " " + aDirEntry.path +
+            " to " + aTargetDirectory.path);
+      throw e;
+    }
+
+    try {
+      if (isDir)
+        this._installDirectory(aDirEntry, aTargetDirectory, aCopy);
+      else
+        this._installFile(aDirEntry, aTargetDirectory, aCopy);
+    }
+    catch (e) {
+      logger.error("Failure " + (aCopy ? "copying" : "moving") + " " + aDirEntry.path +
+            " to " + aTargetDirectory.path);
+      throw e;
+    }
+  },
+
+  /**
+   * Moves a file or directory into a new directory. If an error occurs then all
+   * files that have been moved will be moved back to their original location.
+   *
+   * @param  aFile
+   *         The file or directory to be moved.
+   * @param  aTargetDirectory
+   *         The directory to move into, this is expected to be an empty
+   *         directory.
+   */
+  moveUnder: function(aFile, aTargetDirectory) {
+    try {
+      this._installDirEntry(aFile, aTargetDirectory, false);
+    }
+    catch (e) {
+      this.rollback();
+      throw e;
+    }
+  },
+
+  /**
+   * Renames a file to a new location.  If an error occurs then all
+   * files that have been moved will be moved back to their original location.
+   *
+   * @param  aOldLocation
+   *         The old location of the file.
+   * @param  aNewLocation
+   *         The new location of the file.
+   */
+  moveTo: function(aOldLocation, aNewLocation) {
+    try {
+      let oldFile = aOldLocation.clone(), newFile = aNewLocation.clone();
+      oldFile.moveTo(newFile.parent, newFile.leafName);
+      this._installedFiles.push({ oldFile: oldFile, newFile: newFile, isMoveTo: true});
+    }
+    catch (e) {
+      this.rollback();
+      throw e;
+    }
+  },
+
+  /**
+   * Copies a file or directory into a new directory. If an error occurs then
+   * all new files that have been created will be removed.
+   *
+   * @param  aFile
+   *         The file or directory to be copied.
+   * @param  aTargetDirectory
+   *         The directory to copy into, this is expected to be an empty
+   *         directory.
+   */
+  copy: function(aFile, aTargetDirectory) {
+    try {
+      this._installDirEntry(aFile, aTargetDirectory, true);
+    }
+    catch (e) {
+      this.rollback();
+      throw e;
+    }
+  },
+
+  /**
+   * Rolls back all the moves that this operation performed. If an exception
+   * occurs here then both old and new directories are left in an indeterminate
+   * state
+   */
+  rollback: function() {
+    while (this._installedFiles.length > 0) {
+      let move = this._installedFiles.pop();
+      if (move.isMoveTo) {
+        move.newFile.moveTo(move.oldDir.parent, move.oldDir.leafName);
+      }
+      else if (move.newFile.isDirectory() && !move.newFile.isSymlink()) {
+        let oldDir = move.oldFile.parent.clone();
+        oldDir.append(move.oldFile.leafName);
+        oldDir.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+      }
+      else if (!move.oldFile) {
+        // No old file means this was a copied file
+        move.newFile.remove(true);
+      }
+      else {
+        move.newFile.moveTo(move.oldFile.parent, null);
+      }
+    }
+
+    while (this._createdDirs.length > 0)
+      recursiveRemove(this._createdDirs.pop());
+  }
+};
+
+/**
+ * Sets the userDisabled and softDisabled properties of an add-on based on what
+ * values those properties had for a previous instance of the add-on. The
+ * previous instance may be a previous install or in the case of an application
+ * version change the same add-on.
+ *
+ * NOTE: this may modify aNewAddon in place; callers should save the database if
+ * necessary
+ *
+ * @param  aOldAddon
+ *         The previous instance of the add-on
+ * @param  aNewAddon
+ *         The new instance of the add-on
+ * @param  aAppVersion
+ *         The optional application version to use when checking the blocklist
+ *         or undefined to use the current application
+ * @param  aPlatformVersion
+ *         The optional platform version to use when checking the blocklist or
+ *         undefined to use the current platform
+ */
+function applyBlocklistChanges(aOldAddon, aNewAddon, aOldAppVersion,
+                               aOldPlatformVersion) {
+  // Copy the properties by default
+  aNewAddon.userDisabled = aOldAddon.userDisabled;
+  aNewAddon.softDisabled = aOldAddon.softDisabled;
+
+  let oldBlocklistState = Blocklist.getAddonBlocklistState(aOldAddon.wrapper,
+                                                           aOldAppVersion,
+                                                           aOldPlatformVersion);
+  let newBlocklistState = Blocklist.getAddonBlocklistState(aNewAddon.wrapper);
+
+  // If the blocklist state hasn't changed then the properties don't need to
+  // change
+  if (newBlocklistState == oldBlocklistState)
+    return;
+
+  if (newBlocklistState == Blocklist.STATE_SOFTBLOCKED) {
+    if (aNewAddon.type != "theme") {
+      // The add-on has become softblocked, set softDisabled if it isn't already
+      // userDisabled
+      aNewAddon.softDisabled = !aNewAddon.userDisabled;
+    }
+    else {
+      // Themes just get userDisabled to switch back to the default theme
+      aNewAddon.userDisabled = true;
+    }
+  }
+  else {
+    // If the new add-on is not softblocked then it cannot be softDisabled
+    aNewAddon.softDisabled = false;
+  }
+}
+
+/**
+ * Evaluates whether an add-on is allowed to run in safe mode.
+ *
+ * @param  aAddon
+ *         The add-on to check
+ * @return true if the add-on should run in safe mode
+ */
+function canRunInSafeMode(aAddon) {
+  // Even though the updated system add-ons aren't generally run in safe mode we
+  // include them here so their uninstall functions get called when switching
+  // back to the default set.
+
+  // TODO product should make the call about temporary add-ons running
+  // in safe mode. assuming for now that they are.
+  if (aAddon._installLocation.name == KEY_APP_TEMPORARY)
+    return true;
+
+  return aAddon._installLocation.name == KEY_APP_SYSTEM_DEFAULTS ||
+         aAddon._installLocation.name == KEY_APP_SYSTEM_ADDONS;
+}
+
+/**
+ * Calculates whether an add-on should be appDisabled or not.
+ *
+ * @param  aAddon
+ *         The add-on to check
+ * @return true if the add-on should not be appDisabled
+ */
+function isUsableAddon(aAddon) {
+  // Hack to ensure the default theme is always usable
+  if (aAddon.type == "theme" && aAddon.internalName == XPIProvider.defaultSkin)
+    return true;
+
+  if (mustSign(aAddon.type) && !aAddon.isCorrectlySigned) {
+    logger.warn(`Add-on ${aAddon.id} is not correctly signed.`);
+    return false;
+  }
+
+  if (aAddon.blocklistState == Blocklist.STATE_BLOCKED) {
+    logger.warn(`Add-on ${aAddon.id} is blocklisted.`);
+    return false;
+  }
+
+  // Experiments are installed through an external mechanism that
+  // limits target audience to compatible clients. We trust it knows what
+  // it's doing and skip compatibility checks.
+  //
+  // This decision does forfeit defense in depth. If the experiments system
+  // is ever wrong about targeting an add-on to a specific application
+  // or platform, the client will likely see errors.
+  if (aAddon.type == "experiment")
+    return true;
+
+  if (AddonManager.checkUpdateSecurity && !aAddon.providesUpdatesSecurely) {
+    logger.warn(`Updates for add-on ${aAddon.id} must be provided over HTTPS.`);
+    return false;
+  }
+
+
+  if (!aAddon.isPlatformCompatible) {
+    logger.warn(`Add-on ${aAddon.id} is not compatible with platform.`);
+    return false;
+  }
+
+  if (aAddon.dependencies.length) {
+    let isActive = id => {
+      let active = XPIProvider.activeAddons.get(id);
+      return active && !active.disable;
+    };
+
+    if (aAddon.dependencies.some(id => !isActive(id)))
+      return false;
+  }
+
+  if (AddonManager.checkCompatibility) {
+    if (!aAddon.isCompatible) {
+      logger.warn(`Add-on ${aAddon.id} is not compatible with application version.`);
+      return false;
+    }
+  }
+  else {
+    let app = aAddon.matchingTargetApplication;
+    if (!app) {
+      logger.warn(`Add-on ${aAddon.id} is not compatible with target application.`);
+      return false;
+    }
+
+    // XXX Temporary solution to let applications opt-in to make themes safer
+    //     following significant UI changes even if checkCompatibility=false has
+    //     been set, until we get bug 962001.
+    if (aAddon.type == "theme" && app.id == Services.appinfo.ID) {
+      try {
+        let minCompatVersion = Services.prefs.getCharPref(PREF_CHECKCOMAT_THEMEOVERRIDE);
+        if (minCompatVersion &&
+            Services.vc.compare(minCompatVersion, app.maxVersion) > 0) {
+          logger.warn(`Theme ${aAddon.id} is not compatible with application version.`);
+          return false;
+        }
+      } catch (e) {}
+    }
+  }
+
+  return true;
+}
+
+XPCOMUtils.defineLazyServiceGetter(this, "gRDF", "@mozilla.org/rdf/rdf-service;1",
+                                   Ci.nsIRDFService);
+
+function EM_R(aProperty) {
+  return gRDF.GetResource(PREFIX_NS_EM + aProperty);
+}
+
+function createAddonDetails(id, aAddon) {
+  return {
+    id: id || aAddon.id,
+    type: aAddon.type,
+    version: aAddon.version,
+    multiprocessCompatible: aAddon.multiprocessCompatible,
+    mpcOptedOut: aAddon.mpcOptedOut,
+    runInSafeMode: aAddon.runInSafeMode,
+    dependencies: aAddon.dependencies,
+    hasEmbeddedWebExtension: aAddon.hasEmbeddedWebExtension,
+  };
+}
+
+/**
+ * Converts an internal add-on type to the type presented through the API.
+ *
+ * @param  aType
+ *         The internal add-on type
+ * @return an external add-on type
+ */
+function getExternalType(aType) {
+  if (aType in TYPE_ALIASES)
+    return TYPE_ALIASES[aType];
+  return aType;
+}
+
+function getManifestFileForDir(aDir) {
+  let file = aDir.clone();
+  file.append(FILE_RDF_MANIFEST);
+  if (file.exists() && file.isFile())
+    return file;
+  file.leafName = FILE_WEB_MANIFEST;
+  if (file.exists() && file.isFile())
+    return file;
+  return null;
+}
+
+function getManifestEntryForZipReader(aZipReader) {
+  if (aZipReader.hasEntry(FILE_RDF_MANIFEST))
+    return FILE_RDF_MANIFEST;
+  if (aZipReader.hasEntry(FILE_WEB_MANIFEST))
+    return FILE_WEB_MANIFEST;
+  return null;
+}
+
+/**
+ * Converts a list of API types to a list of API types and any aliases for those
+ * types.
+ *
+ * @param  aTypes
+ *         An array of types or null for all types
+ * @return an array of types or null for all types
+ */
+function getAllAliasesForTypes(aTypes) {
+  if (!aTypes)
+    return null;
+
+  // Build a set of all requested types and their aliases
+  let typeset = new Set(aTypes);
+
+  for (let alias of Object.keys(TYPE_ALIASES)) {
+    // Ignore any requested internal types
+    typeset.delete(alias);
+
+    // Add any alias for the internal type
+    if (typeset.has(TYPE_ALIASES[alias]))
+      typeset.add(alias);
+  }
+
+  return [...typeset];
+}
+
+/**
+ * Converts an RDF literal, resource or integer into a string.
+ *
+ * @param  aLiteral
+ *         The RDF object to convert
+ * @return a string if the object could be converted or null
+ */
+function getRDFValue(aLiteral) {
+  if (aLiteral instanceof Ci.nsIRDFLiteral)
+    return aLiteral.Value;
+  if (aLiteral instanceof Ci.nsIRDFResource)
+    return aLiteral.Value;
+  if (aLiteral instanceof Ci.nsIRDFInt)
+    return aLiteral.Value;
+  return null;
+}
+
+/**
+ * Gets an RDF property as a string
+ *
+ * @param  aDs
+ *         The RDF datasource to read the property from
+ * @param  aResource
+ *         The RDF resource to read the property from
+ * @param  aProperty
+ *         The property to read
+ * @return a string if the property existed or null
+ */
+function getRDFProperty(aDs, aResource, aProperty) {
+  return getRDFValue(aDs.GetTarget(aResource, EM_R(aProperty), true));
+}
+
+/**
+ * Reads an AddonInternal object from a manifest stream.
+ *
+ * @param  aUri
+ *         A |file:| or |jar:| URL for the manifest
+ * @return an AddonInternal object
+ * @throws if the install manifest in the stream is corrupt or could not
+ *         be read
+ */
+var loadManifestFromWebManifest = Task.async(function*(aUri) {
+  // We're passed the URI for the manifest file. Get the URI for its
+  // parent directory.
+  let uri = NetUtil.newURI("./", null, aUri);
+
+  let extension = new ExtensionData(uri);
+
+  let manifest = yield extension.readManifest();
+
+  // Read the list of available locales, and pre-load messages for
+  // all locales.
+  let locales = yield extension.initAllLocales();
+
+  // If there were any errors loading the extension, bail out now.
+  if (extension.errors.length)
+    throw new Error("Extension is invalid");
+
+  let bss = (manifest.browser_specific_settings && manifest.browser_specific_settings.gecko)
+      || (manifest.applications && manifest.applications.gecko) || {};
+  if (manifest.browser_specific_settings && manifest.applications) {
+    logger.warn("Ignoring applications property in manifest");
+  }
+
+  // A * is illegal in strict_min_version
+  if (bss.strict_min_version && bss.strict_min_version.split(".").some(part => part == "*")) {
+    throw new Error("The use of '*' in strict_min_version is invalid");
+  }
+
+  let addon = new AddonInternal();
+  addon.id = bss.id;
+  addon.version = manifest.version;
+  addon.type = "webextension";
+  addon.unpack = false;
+  addon.strictCompatibility = true;
+  addon.bootstrap = true;
+  addon.hasBinaryComponents = false;
+  addon.multiprocessCompatible = true;
+  addon.internalName = null;
+  addon.updateURL = bss.update_url;
+  addon.updateKey = null;
+  addon.optionsURL = null;
+  addon.optionsType = null;
+  addon.aboutURL = null;
+  addon.dependencies = Object.freeze(Array.from(extension.dependencies));
+
+  if (manifest.options_ui) {
+    // Store just the relative path here, the AddonWrapper getURL
+    // wrapper maps this to a full URL.
+    addon.optionsURL = manifest.options_ui.page;
+    if (manifest.options_ui.open_in_tab)
+      addon.optionsType = AddonManager.OPTIONS_TYPE_TAB;
+    else
+      addon.optionsType = AddonManager.OPTIONS_TYPE_INLINE_BROWSER;
+  }
+
+  // WebExtensions don't use iconURLs
+  addon.iconURL = null;
+  addon.icon64URL = null;
+  addon.icons = manifest.icons || {};
+
+  addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DEFAULT;
+
+  function getLocale(aLocale) {
+    // Use the raw manifest, here, since we need values with their
+    // localization placeholders still in place.
+    let rawManifest = extension.rawManifest;
+
+    // As a convenience, allow author to be set if its a string bug 1313567.
+    let creator = typeof(rawManifest.author) === 'string' ? rawManifest.author : null;
+    let homepageURL = rawManifest.homepage_url;
+
+    // Allow developer to override creator and homepage_url.
+    if (rawManifest.developer) {
+      if (rawManifest.developer.name) {
+        creator = rawManifest.developer.name;
+      }
+      if (rawManifest.developer.url) {
+        homepageURL = rawManifest.developer.url;
+      }
+    }
+
+    let result = {
+      name: extension.localize(rawManifest.name, aLocale),
+      description: extension.localize(rawManifest.description, aLocale),
+      creator: extension.localize(creator, aLocale),
+      homepageURL: extension.localize(homepageURL, aLocale),
+
+      developers: null,
+      translators: null,
+      contributors: null,
+      locales: [aLocale],
+    };
+    return result;
+  }
+
+  addon.defaultLocale = getLocale(extension.defaultLocale);
+  addon.locales = Array.from(locales.keys(), getLocale);
+
+  delete addon.defaultLocale.locales;
+
+  addon.targetApplications = [{
+    id: TOOLKIT_ID,
+    minVersion: bss.strict_min_version,
+    maxVersion: bss.strict_max_version,
+  }];
+
+  addon.targetPlatforms = [];
+  addon.userDisabled = false;
+  addon.softDisabled = addon.blocklistState == Blocklist.STATE_SOFTBLOCKED;
+
+  return addon;
+});
+
+/**
+ * Reads an AddonInternal object from an RDF stream.
+ *
+ * @param  aUri
+ *         The URI that the manifest is being read from
+ * @param  aStream
+ *         An open stream to read the RDF from
+ * @return an AddonInternal object
+ * @throws if the install manifest in the RDF stream is corrupt or could not
+ *         be read
+ */
+let loadManifestFromRDF = Task.async(function*(aUri, aStream) {
+  function getPropertyArray(aDs, aSource, aProperty) {
+    let values = [];
+    let targets = aDs.GetTargets(aSource, EM_R(aProperty), true);
+    while (targets.hasMoreElements())
+      values.push(getRDFValue(targets.getNext()));
+
+    return values;
+  }
+
+  /**
+   * Reads locale properties from either the main install manifest root or
+   * an em:localized section in the install manifest.
+   *
+   * @param  aDs
+   *         The nsIRDFDatasource to read from
+   * @param  aSource
+   *         The nsIRDFResource to read the properties from
+   * @param  isDefault
+   *         True if the locale is to be read from the main install manifest
+   *         root
+   * @param  aSeenLocales
+   *         An array of locale names already seen for this install manifest.
+   *         Any locale names seen as a part of this function will be added to
+   *         this array
+   * @return an object containing the locale properties
+   */
+  function readLocale(aDs, aSource, isDefault, aSeenLocales) {
+    let locale = { };
+    if (!isDefault) {
+      locale.locales = [];
+      let targets = ds.GetTargets(aSource, EM_R("locale"), true);
+      while (targets.hasMoreElements()) {
+        let localeName = getRDFValue(targets.getNext());
+        if (!localeName) {
+          logger.warn("Ignoring empty locale in localized properties");
+          continue;
+        }
+        if (aSeenLocales.indexOf(localeName) != -1) {
+          logger.warn("Ignoring duplicate locale in localized properties");
+          continue;
+        }
+        aSeenLocales.push(localeName);
+        locale.locales.push(localeName);
+      }
+
+      if (locale.locales.length == 0) {
+        logger.warn("Ignoring localized properties with no listed locales");
+        return null;
+      }
+    }
+
+    for (let prop of PROP_LOCALE_SINGLE) {
+      locale[prop] = getRDFProperty(aDs, aSource, prop);
+    }
+
+    for (let prop of PROP_LOCALE_MULTI) {
+      // Don't store empty arrays
+      let props = getPropertyArray(aDs, aSource,
+                                   prop.substring(0, prop.length - 1));
+      if (props.length > 0)
+        locale[prop] = props;
+    }
+
+    return locale;
+  }
+
+  let rdfParser = Cc["@mozilla.org/rdf/xml-parser;1"].
+                  createInstance(Ci.nsIRDFXMLParser)
+  let ds = Cc["@mozilla.org/rdf/datasource;1?name=in-memory-datasource"].
+           createInstance(Ci.nsIRDFDataSource);
+  let listener = rdfParser.parseAsync(ds, aUri);
+  let channel = Cc["@mozilla.org/network/input-stream-channel;1"].
+                createInstance(Ci.nsIInputStreamChannel);
+  channel.setURI(aUri);
+  channel.contentStream = aStream;
+  channel.QueryInterface(Ci.nsIChannel);
+  channel.contentType = "text/xml";
+
+  listener.onStartRequest(channel, null);
+
+  try {
+    let pos = 0;
+    let count = aStream.available();
+    while (count > 0) {
+      listener.onDataAvailable(channel, null, aStream, pos, count);
+      pos += count;
+      count = aStream.available();
+    }
+    listener.onStopRequest(channel, null, Components.results.NS_OK);
+  }
+  catch (e) {
+    listener.onStopRequest(channel, null, e.result);
+    throw e;
+  }
+
+  let root = gRDF.GetResource(RDFURI_INSTALL_MANIFEST_ROOT);
+  let addon = new AddonInternal();
+  for (let prop of PROP_METADATA) {
+    addon[prop] = getRDFProperty(ds, root, prop);
+  }
+  addon.unpack = getRDFProperty(ds, root, "unpack") == "true";
+
+  if (!addon.type) {
+    addon.type = addon.internalName ? "theme" : "extension";
+  }
+  else {
+    let type = addon.type;
+    addon.type = null;
+    for (let name in TYPES) {
+      if (TYPES[name] == type) {
+        addon.type = name;
+        break;
+      }
+    }
+  }
+
+  if (!(addon.type in TYPES))
+    throw new Error("Install manifest specifies unknown type: " + addon.type);
+
+  if (addon.type != "multipackage") {
+    if (!addon.id)
+      throw new Error("No ID in install manifest");
+    if (!gIDTest.test(addon.id))
+      throw new Error("Illegal add-on ID " + addon.id);
+    if (!addon.version)
+      throw new Error("No version in install manifest");
+  }
+
+  addon.strictCompatibility = !(addon.type in COMPATIBLE_BY_DEFAULT_TYPES) ||
+                              getRDFProperty(ds, root, "strictCompatibility") == "true";
+
+  // Only read these properties for extensions.
+  if (addon.type == "extension") {
+    addon.bootstrap = getRDFProperty(ds, root, "bootstrap") == "true";
+
+    let mpcValue = getRDFProperty(ds, root, "multiprocessCompatible");
+    addon.multiprocessCompatible = mpcValue == "true";
+    addon.mpcOptedOut = mpcValue == "false";
+
+    addon.hasEmbeddedWebExtension = getRDFProperty(ds, root, "hasEmbeddedWebExtension") == "true";
+
+    if (addon.optionsType &&
+        addon.optionsType != AddonManager.OPTIONS_TYPE_DIALOG &&
+        addon.optionsType != AddonManager.OPTIONS_TYPE_INLINE &&
+        addon.optionsType != AddonManager.OPTIONS_TYPE_TAB &&
+        addon.optionsType != AddonManager.OPTIONS_TYPE_INLINE_INFO) {
+      throw new Error("Install manifest specifies unknown type: " + addon.optionsType);
+    }
+
+    if (addon.hasEmbeddedWebExtension) {
+      let uri = NetUtil.newURI("webextension/manifest.json", null, aUri);
+      let embeddedAddon = yield loadManifestFromWebManifest(uri);
+      if (embeddedAddon.optionsURL) {
+        if (addon.optionsType || addon.optionsURL)
+          logger.warn(`Addon ${addon.id} specifies optionsType or optionsURL ` +
+                      `in both install.rdf and manifest.json`);
+
+        addon.optionsURL = embeddedAddon.optionsURL;
+        addon.optionsType = embeddedAddon.optionsType;
+      }
+    }
+  }
+  else {
+    // Some add-on types are always restartless.
+    if (RESTARTLESS_TYPES.has(addon.type)) {
+      addon.bootstrap = true;
+    }
+
+    // Only extensions are allowed to provide an optionsURL, optionsType or aboutURL. For
+    // all other types they are silently ignored
+    addon.optionsURL = null;
+    addon.optionsType = null;
+    addon.aboutURL = null;
+
+    if (addon.type == "theme") {
+      if (!addon.internalName)
+        throw new Error("Themes must include an internalName property");
+      addon.skinnable = getRDFProperty(ds, root, "skinnable") == "true";
+    }
+  }
+
+  addon.defaultLocale = readLocale(ds, root, true);
+
+  let seenLocales = [];
+  addon.locales = [];
+  let targets = ds.GetTargets(root, EM_R("localized"), true);
+  while (targets.hasMoreElements()) {
+    let target = targets.getNext().QueryInterface(Ci.nsIRDFResource);
+    let locale = readLocale(ds, target, false, seenLocales);
+    if (locale)
+      addon.locales.push(locale);
+  }
+
+  let dependencies = new Set();
+  targets = ds.GetTargets(root, EM_R("dependency"), true);
+  while (targets.hasMoreElements()) {
+    let target = targets.getNext().QueryInterface(Ci.nsIRDFResource);
+    let id = getRDFProperty(ds, target, "id");
+    dependencies.add(id);
+  }
+  addon.dependencies = Object.freeze(Array.from(dependencies));
+
+  let seenApplications = [];
+  addon.targetApplications = [];
+  targets = ds.GetTargets(root, EM_R("targetApplication"), true);
+  while (targets.hasMoreElements()) {
+    let target = targets.getNext().QueryInterface(Ci.nsIRDFResource);
+    let targetAppInfo = {};
+    for (let prop of PROP_TARGETAPP) {
+      targetAppInfo[prop] = getRDFProperty(ds, target, prop);
+    }
+    if (!targetAppInfo.id || !targetAppInfo.minVersion ||
+        !targetAppInfo.maxVersion) {
+      logger.warn("Ignoring invalid targetApplication entry in install manifest");
+      continue;
+    }
+    if (seenApplications.indexOf(targetAppInfo.id) != -1) {
+      logger.warn("Ignoring duplicate targetApplication entry for " + targetAppInfo.id +
+           " in install manifest");
+      continue;
+    }
+    seenApplications.push(targetAppInfo.id);
+    addon.targetApplications.push(targetAppInfo);
+  }
+
+  // Note that we don't need to check for duplicate targetPlatform entries since
+  // the RDF service coalesces them for us.
+  let targetPlatforms = getPropertyArray(ds, root, "targetPlatform");
+  addon.targetPlatforms = [];
+  for (let targetPlatform of targetPlatforms) {
+    let platform = {
+      os: null,
+      abi: null
+    };
+
+    let pos = targetPlatform.indexOf("_");
+    if (pos != -1) {
+      platform.os = targetPlatform.substring(0, pos);
+      platform.abi = targetPlatform.substring(pos + 1);
+    }
+    else {
+      platform.os = targetPlatform;
+    }
+
+    addon.targetPlatforms.push(platform);
+  }
+
+  // A theme's userDisabled value is true if the theme is not the selected skin
+  // or if there is an active lightweight theme. We ignore whether softblocking
+  // is in effect since it would change the active theme.
+  if (addon.type == "theme") {
+    addon.userDisabled = !!LightweightThemeManager.currentTheme ||
+                         addon.internalName != XPIProvider.selectedSkin;
+  }
+  else if (addon.type == "experiment") {
+    // Experiments are disabled by default. It is up to the Experiments Manager
+    // to enable them (it drives installation).
+    addon.userDisabled = true;
+  }
+  else {
+    addon.userDisabled = false;
+  }
+
+  addon.softDisabled = addon.blocklistState == Blocklist.STATE_SOFTBLOCKED;
+  addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DEFAULT;
+
+  // Experiments are managed and updated through an external "experiments
+  // manager." So disable some built-in mechanisms.
+  if (addon.type == "experiment") {
+    addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+    addon.updateURL = null;
+    addon.updateKey = null;
+  }
+
+  // icons will be filled by the calling function
+  addon.icons = {};
+
+  return addon;
+});
+
+function defineSyncGUID(aAddon) {
+  // Define .syncGUID as a lazy property which is also settable
+  Object.defineProperty(aAddon, "syncGUID", {
+    get: () => {
+      // Generate random GUID used for Sync.
+      let guid = Cc["@mozilla.org/uuid-generator;1"]
+          .getService(Ci.nsIUUIDGenerator)
+          .generateUUID().toString();
+
+      delete aAddon.syncGUID;
+      aAddon.syncGUID = guid;
+      return guid;
+    },
+    set: (val) => {
+      delete aAddon.syncGUID;
+      aAddon.syncGUID = val;
+    },
+    configurable: true,
+    enumerable: true,
+  });
+}
+
+// Generate a unique ID based on the path to this temporary add-on location.
+function generateTemporaryInstallID(aFile) {
+  const hasher = Cc["@mozilla.org/security/hash;1"]
+        .createInstance(Ci.nsICryptoHash);
+  hasher.init(hasher.SHA1);
+  const data = new TextEncoder().encode(aFile.path);
+  // Make it so this ID cannot be guessed.
+  const sess = TEMP_INSTALL_ID_GEN_SESSION;
+  hasher.update(sess, sess.length);
+  hasher.update(data, data.length);
+  let id = `${getHashStringForCrypto(hasher)}@temporary-addon`;
+  logger.info(`Generated temp id ${id} (${sess.join("")}) for ${aFile.path}`);
+  return id;
+}
+
+/**
+ * Loads an AddonInternal object from an add-on extracted in a directory.
+ *
+ * @param  aDir
+ *         The nsIFile directory holding the add-on
+ * @return an AddonInternal object
+ * @throws if the directory does not contain a valid install manifest
+ */
+var loadManifestFromDir = Task.async(function*(aDir, aInstallLocation) {
+  function getFileSize(aFile) {
+    if (aFile.isSymlink())
+      return 0;
+
+    if (!aFile.isDirectory())
+      return aFile.fileSize;
+
+    let size = 0;
+    let entries = aFile.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
+    let entry;
+    while ((entry = entries.nextFile))
+      size += getFileSize(entry);
+    entries.close();
+    return size;
+  }
+
+  function* loadFromRDF(aUri) {
+    let fis = Cc["@mozilla.org/network/file-input-stream;1"].
+              createInstance(Ci.nsIFileInputStream);
+    fis.init(aUri.file, -1, -1, false);
+    let bis = Cc["@mozilla.org/network/buffered-input-stream;1"].
+              createInstance(Ci.nsIBufferedInputStream);
+    bis.init(fis, 4096);
+    try {
+      var addon = yield loadManifestFromRDF(aUri, bis);
+    } finally {
+      bis.close();
+      fis.close();
+    }
+
+    let iconFile = aDir.clone();
+    iconFile.append("icon.png");
+
+    if (iconFile.exists()) {
+      addon.icons[32] = "icon.png";
+      addon.icons[48] = "icon.png";
+    }
+
+    let icon64File = aDir.clone();
+    icon64File.append("icon64.png");
+
+    if (icon64File.exists()) {
+      addon.icons[64] = "icon64.png";
+    }
+
+    let file = aDir.clone();
+    file.append("chrome.manifest");
+    let chromeManifest = ChromeManifestParser.parseSync(Services.io.newFileURI(file));
+    addon.hasBinaryComponents = ChromeManifestParser.hasType(chromeManifest,
+                                                             "binary-component");
+    return addon;
+  }
+
+  let file = getManifestFileForDir(aDir);
+  if (!file) {
+    throw new Error("Directory " + aDir.path + " does not contain a valid " +
+                    "install manifest");
+  }
+
+  let uri = Services.io.newFileURI(file).QueryInterface(Ci.nsIFileURL);
+
+  let addon;
+  if (file.leafName == FILE_WEB_MANIFEST) {
+    addon = yield loadManifestFromWebManifest(uri);
+    if (!addon.id) {
+      if (aInstallLocation == TemporaryInstallLocation) {
+        addon.id = generateTemporaryInstallID(aDir);
+      } else {
+        addon.id = aDir.leafName;
+      }
+    }
+  } else {
+    addon = yield loadFromRDF(uri);
+  }
+
+  addon._sourceBundle = aDir.clone();
+  addon._installLocation = aInstallLocation;
+  addon.size = getFileSize(aDir);
+  addon.signedState = yield verifyDirSignedState(aDir, addon)
+    .then(({signedState}) => signedState);
+  addon.appDisabled = !isUsableAddon(addon);
+
+  defineSyncGUID(addon);
+
+  return addon;
+});
+
+/**
+ * Loads an AddonInternal object from an nsIZipReader for an add-on.
+ *
+ * @param  aZipReader
+ *         An open nsIZipReader for the add-on's files
+ * @return an AddonInternal object
+ * @throws if the XPI file does not contain a valid install manifest
+ */
+var loadManifestFromZipReader = Task.async(function*(aZipReader, aInstallLocation) {
+  function* loadFromRDF(aUri) {
+    let zis = aZipReader.getInputStream(entry);
+    let bis = Cc["@mozilla.org/network/buffered-input-stream;1"].
+              createInstance(Ci.nsIBufferedInputStream);
+    bis.init(zis, 4096);
+    try {
+      var addon = yield loadManifestFromRDF(aUri, bis);
+    } finally {
+      bis.close();
+      zis.close();
+    }
+
+    if (aZipReader.hasEntry("icon.png")) {
+      addon.icons[32] = "icon.png";
+      addon.icons[48] = "icon.png";
+    }
+
+    if (aZipReader.hasEntry("icon64.png")) {
+      addon.icons[64] = "icon64.png";
+    }
+
+    // Binary components can only be loaded from unpacked addons.
+    if (addon.unpack) {
+      let uri = buildJarURI(aZipReader.file, "chrome.manifest");
+      let chromeManifest = ChromeManifestParser.parseSync(uri);
+      addon.hasBinaryComponents = ChromeManifestParser.hasType(chromeManifest,
+                                                               "binary-component");
+    } else {
+      addon.hasBinaryComponents = false;
+    }
+
+    return addon;
+  }
+
+  let entry = getManifestEntryForZipReader(aZipReader);
+  if (!entry) {
+    throw new Error("File " + aZipReader.file.path + " does not contain a valid " +
+                    "install manifest");
+  }
+
+  let uri = buildJarURI(aZipReader.file, entry);
+
+  let isWebExtension = (entry == FILE_WEB_MANIFEST);
+
+  let addon = isWebExtension ?
+              yield loadManifestFromWebManifest(uri) :
+              yield loadFromRDF(uri);
+
+  addon._sourceBundle = aZipReader.file;
+  addon._installLocation = aInstallLocation;
+
+  addon.size = 0;
+  let entries = aZipReader.findEntries(null);
+  while (entries.hasMore())
+    addon.size += aZipReader.getEntry(entries.getNext()).realSize;
+
+  let {signedState, cert} = yield verifyZipSignedState(aZipReader.file, addon);
+  addon.signedState = signedState;
+  if (isWebExtension && !addon.id) {
+    if (cert) {
+      addon.id = cert.commonName;
+      if (!gIDTest.test(addon.id)) {
+        throw new Error(`Webextension is signed with an invalid id (${addon.id})`);
+      }
+    }
+    if (!addon.id && aInstallLocation == TemporaryInstallLocation) {
+      addon.id = generateTemporaryInstallID(aZipReader.file);
+    }
+  }
+  addon.appDisabled = !isUsableAddon(addon);
+
+  defineSyncGUID(addon);
+
+  return addon;
+});
+
+/**
+ * Loads an AddonInternal object from an add-on in an XPI file.
+ *
+ * @param  aXPIFile
+ *         An nsIFile pointing to the add-on's XPI file
+ * @return an AddonInternal object
+ * @throws if the XPI file does not contain a valid install manifest
+ */
+var loadManifestFromZipFile = Task.async(function*(aXPIFile, aInstallLocation) {
+  let zipReader = Cc["@mozilla.org/libjar/zip-reader;1"].
+                  createInstance(Ci.nsIZipReader);
+  try {
+    zipReader.open(aXPIFile);
+
+    // Can't return this promise because that will make us close the zip reader
+    // before it has finished loading the manifest. Wait for the result and then
+    // return.
+    let manifest = yield loadManifestFromZipReader(zipReader, aInstallLocation);
+    return manifest;
+  }
+  finally {
+    zipReader.close();
+  }
+});
+
+function loadManifestFromFile(aFile, aInstallLocation) {
+  if (aFile.isFile())
+    return loadManifestFromZipFile(aFile, aInstallLocation);
+  return loadManifestFromDir(aFile, aInstallLocation);
+}
+
+/**
+ * A synchronous method for loading an add-on's manifest. This should only ever
+ * be used during startup or a sync load of the add-ons DB
+ */
+function syncLoadManifestFromFile(aFile, aInstallLocation) {
+  let success = undefined;
+  let result = null;
+
+  loadManifestFromFile(aFile, aInstallLocation).then(val => {
+    success = true;
+    result = val;
+  }, val => {
+    success = false;
+    result = val
+  });
+
+  let thread = Services.tm.currentThread;
+
+  while (success === undefined)
+    thread.processNextEvent(true);
+
+  if (!success)
+    throw result;
+  return result;
+}
+
+/**
+ * Gets an nsIURI for a file within another file, either a directory or an XPI
+ * file. If aFile is a directory then this will return a file: URI, if it is an
+ * XPI file then it will return a jar: URI.
+ *
+ * @param  aFile
+ *         The file containing the resources, must be either a directory or an
+ *         XPI file
+ * @param  aPath
+ *         The path to find the resource at, "/" separated. If aPath is empty
+ *         then the uri to the root of the contained files will be returned
+ * @return an nsIURI pointing at the resource
+ */
+function getURIForResourceInFile(aFile, aPath) {
+  if (aFile.isDirectory()) {
+    let resource = aFile.clone();
+    if (aPath)
+      aPath.split("/").forEach(part => resource.append(part));
+
+    return NetUtil.newURI(resource);
+  }
+
+  return buildJarURI(aFile, aPath);
+}
+
+/**
+ * Creates a jar: URI for a file inside a ZIP file.
+ *
+ * @param  aJarfile
+ *         The ZIP file as an nsIFile
+ * @param  aPath
+ *         The path inside the ZIP file
+ * @return an nsIURI for the file
+ */
+function buildJarURI(aJarfile, aPath) {
+  let uri = Services.io.newFileURI(aJarfile);
+  uri = "jar:" + uri.spec + "!/" + aPath;
+  return NetUtil.newURI(uri);
+}
+
+/**
+ * Sends local and remote notifications to flush a JAR file cache entry
+ *
+ * @param aJarFile
+ *        The ZIP/XPI/JAR file as a nsIFile
+ */
+function flushJarCache(aJarFile) {
+  Services.obs.notifyObservers(aJarFile, "flush-cache-entry", null);
+  Services.mm.broadcastAsyncMessage(MSG_JAR_FLUSH, aJarFile.path);
+}
+
+function flushChromeCaches() {
+  // Init this, so it will get the notification.
+  Services.obs.notifyObservers(null, "startupcache-invalidate", null);
+  // Flush message manager cached scripts
+  Services.obs.notifyObservers(null, "message-manager-flush-caches", null);
+  // Also dispatch this event to child processes
+  Services.mm.broadcastAsyncMessage(MSG_MESSAGE_MANAGER_CACHES_FLUSH, null);
+}
+
+/**
+ * Creates and returns a new unique temporary file. The caller should delete
+ * the file when it is no longer needed.
+ *
+ * @return an nsIFile that points to a randomly named, initially empty file in
+ *         the OS temporary files directory
+ */
+function getTemporaryFile() {
+  let file = FileUtils.getDir(KEY_TEMPDIR, []);
+  let random = Math.random().toString(36).replace(/0./, '').substr(-3);
+  file.append("tmp-" + random + ".xpi");
+  file.createUnique(Ci.nsIFile.NORMAL_FILE_TYPE, FileUtils.PERMS_FILE);
+
+  return file;
+}
+
+/**
+ * Verifies that a zip file's contents are all signed by the same principal.
+ * Directory entries and anything in the META-INF directory are not checked.
+ *
+ * @param  aZip
+ *         A nsIZipReader to check
+ * @param  aCertificate
+ *         The nsIX509Cert to compare against
+ * @return true if all the contents that should be signed were signed by the
+ *         principal
+ */
+function verifyZipSigning(aZip, aCertificate) {
+  var count = 0;
+  var entries = aZip.findEntries(null);
+  while (entries.hasMore()) {
+    var entry = entries.getNext();
+    // Nothing in META-INF is in the manifest.
+    if (entry.substr(0, 9) == "META-INF/")
+      continue;
+    // Directory entries aren't in the manifest.
+    if (entry.substr(-1) == "/")
+      continue;
+    count++;
+    var entryCertificate = aZip.getSigningCert(entry);
+    if (!entryCertificate || !aCertificate.equals(entryCertificate)) {
+      return false;
+    }
+  }
+  return aZip.manifestEntriesCount == count;
+}
+
+/**
+ * Returns the signedState for a given return code and certificate by verifying
+ * it against the expected ID.
+ */
+function getSignedStatus(aRv, aCert, aAddonID) {
+  let expectedCommonName = aAddonID;
+  if (aAddonID && aAddonID.length > 64) {
+    let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
+                    createInstance(Ci.nsIScriptableUnicodeConverter);
+    converter.charset = "UTF-8";
+    let data = converter.convertToByteArray(aAddonID, {});
+
+    let crypto = Cc["@mozilla.org/security/hash;1"].
+                 createInstance(Ci.nsICryptoHash);
+    crypto.init(Ci.nsICryptoHash.SHA256);
+    crypto.update(data, data.length);
+    expectedCommonName = getHashStringForCrypto(crypto);
+  }
+
+  switch (aRv) {
+    case Cr.NS_OK:
+      if (expectedCommonName && expectedCommonName != aCert.commonName)
+        return AddonManager.SIGNEDSTATE_BROKEN;
+
+      let hotfixID = Preferences.get(PREF_EM_HOTFIX_ID, undefined);
+      if (hotfixID && hotfixID == aAddonID && Preferences.get(PREF_EM_CERT_CHECKATTRIBUTES, false)) {
+        // The hotfix add-on has some more rigorous certificate checks
+        try {
+          CertUtils.validateCert(aCert,
+                                 CertUtils.readCertPrefs(PREF_EM_HOTFIX_CERTS));
+        }
+        catch (e) {
+          logger.warn("The hotfix add-on was not signed by the expected " +
+                      "certificate and so will not be installed.", e);
+          return AddonManager.SIGNEDSTATE_BROKEN;
+        }
+      }
+
+      if (aCert.organizationalUnit == "Mozilla Components")
+        return AddonManager.SIGNEDSTATE_SYSTEM;
+
+      return /preliminary/i.test(aCert.organizationalUnit)
+               ? AddonManager.SIGNEDSTATE_PRELIMINARY
+               : AddonManager.SIGNEDSTATE_SIGNED;
+    case Cr.NS_ERROR_SIGNED_JAR_NOT_SIGNED:
+      return AddonManager.SIGNEDSTATE_MISSING;
+    case Cr.NS_ERROR_SIGNED_JAR_MANIFEST_INVALID:
+    case Cr.NS_ERROR_SIGNED_JAR_ENTRY_INVALID:
+    case Cr.NS_ERROR_SIGNED_JAR_ENTRY_MISSING:
+    case Cr.NS_ERROR_SIGNED_JAR_ENTRY_TOO_LARGE:
+    case Cr.NS_ERROR_SIGNED_JAR_UNSIGNED_ENTRY:
+    case Cr.NS_ERROR_SIGNED_JAR_MODIFIED_ENTRY:
+      return AddonManager.SIGNEDSTATE_BROKEN;
+    default:
+      // Any other error indicates that either the add-on isn't signed or it
+      // is signed by a signature that doesn't chain to the trusted root.
+      return AddonManager.SIGNEDSTATE_UNKNOWN;
+  }
+}
+
+function shouldVerifySignedState(aAddon) {
+  // Updated system add-ons should always have their signature checked
+  if (aAddon._installLocation.name == KEY_APP_SYSTEM_ADDONS)
+    return true;
+
+  // We don't care about signatures for default system add-ons
+  if (aAddon._installLocation.name == KEY_APP_SYSTEM_DEFAULTS)
+    return false;
+
+  // Hotfixes should always have their signature checked
+  let hotfixID = Preferences.get(PREF_EM_HOTFIX_ID, undefined);
+  if (hotfixID && aAddon.id == hotfixID)
+    return true;
+
+  // Otherwise only check signatures if signing is enabled and the add-on is one
+  // of the signed types.
+  return ADDON_SIGNING && SIGNED_TYPES.has(aAddon.type);
+}
+
+let gCertDB = Cc["@mozilla.org/security/x509certdb;1"]
+              .getService(Ci.nsIX509CertDB);
+
+/**
+ * Verifies that a zip file's contents are all correctly signed by an
+ * AMO-issued certificate
+ *
+ * @param  aFile
+ *         the xpi file to check
+ * @param  aAddon
+ *         the add-on object to verify
+ * @return a Promise that resolves to an object with properties:
+ *         signedState: an AddonManager.SIGNEDSTATE_* constant
+ *         cert: an nsIX509Cert
+ */
+function verifyZipSignedState(aFile, aAddon) {
+  if (!shouldVerifySignedState(aAddon))
+    return Promise.resolve({
+      signedState: AddonManager.SIGNEDSTATE_NOT_REQUIRED,
+      cert: null
+    });
+
+  let root = Ci.nsIX509CertDB.AddonsPublicRoot;
+  if (!REQUIRE_SIGNING && Preferences.get(PREF_XPI_SIGNATURES_DEV_ROOT, false))
+    root = Ci.nsIX509CertDB.AddonsStageRoot;
+
+  return new Promise(resolve => {
+    let callback = {
+      openSignedAppFileFinished: function(aRv, aZipReader, aCert) {
+        if (aZipReader)
+          aZipReader.close();
+        resolve({
+          signedState: getSignedStatus(aRv, aCert, aAddon.id),
+          cert: aCert
+        });
+      }
+    };
+    // This allows the certificate DB to get the raw JS callback object so the
+    // test code can pass through objects that XPConnect would reject.
+    callback.wrappedJSObject = callback;
+
+    gCertDB.openSignedAppFileAsync(root, aFile, callback);
+  });
+}
+
+/**
+ * Verifies that a directory's contents are all correctly signed by an
+ * AMO-issued certificate
+ *
+ * @param  aDir
+ *         the directory to check
+ * @param  aAddon
+ *         the add-on object to verify
+ * @return a Promise that resolves to an object with properties:
+ *         signedState: an AddonManager.SIGNEDSTATE_* constant
+ *         cert: an nsIX509Cert
+ */
+function verifyDirSignedState(aDir, aAddon) {
+  if (!shouldVerifySignedState(aAddon))
+    return Promise.resolve({
+      signedState: AddonManager.SIGNEDSTATE_NOT_REQUIRED,
+      cert: null,
+    });
+
+  let root = Ci.nsIX509CertDB.AddonsPublicRoot;
+  if (!REQUIRE_SIGNING && Preferences.get(PREF_XPI_SIGNATURES_DEV_ROOT, false))
+    root = Ci.nsIX509CertDB.AddonsStageRoot;
+
+  return new Promise(resolve => {
+    let callback = {
+      verifySignedDirectoryFinished: function(aRv, aCert) {
+        resolve({
+          signedState: getSignedStatus(aRv, aCert, aAddon.id),
+          cert: null,
+        });
+      }
+    };
+    // This allows the certificate DB to get the raw JS callback object so the
+    // test code can pass through objects that XPConnect would reject.
+    callback.wrappedJSObject = callback;
+
+    gCertDB.verifySignedDirectoryAsync(root, aDir, callback);
+  });
+}
+
+/**
+ * Verifies that a bundle's contents are all correctly signed by an
+ * AMO-issued certificate
+ *
+ * @param  aBundle
+ *         the nsIFile for the bundle to check, either a directory or zip file
+ * @param  aAddon
+ *         the add-on object to verify
+ * @return a Promise that resolves to an AddonManager.SIGNEDSTATE_* constant.
+ */
+function verifyBundleSignedState(aBundle, aAddon) {
+  let promise = aBundle.isFile() ? verifyZipSignedState(aBundle, aAddon)
+      : verifyDirSignedState(aBundle, aAddon);
+  return promise.then(({signedState}) => signedState);
+}
+
+/**
+ * Replaces %...% strings in an addon url (update and updateInfo) with
+ * appropriate values.
+ *
+ * @param  aAddon
+ *         The AddonInternal representing the add-on
+ * @param  aUri
+ *         The uri to escape
+ * @param  aUpdateType
+ *         An optional number representing the type of update, only applicable
+ *         when creating a url for retrieving an update manifest
+ * @param  aAppVersion
+ *         The optional application version to use for %APP_VERSION%
+ * @return the appropriately escaped uri.
+ */
+function escapeAddonURI(aAddon, aUri, aUpdateType, aAppVersion)
+{
+  let uri = AddonManager.escapeAddonURI(aAddon, aUri, aAppVersion);
+
+  // If there is an updateType then replace the UPDATE_TYPE string
+  if (aUpdateType)
+    uri = uri.replace(/%UPDATE_TYPE%/g, aUpdateType);
+
+  // If this add-on has compatibility information for either the current
+  // application or toolkit then replace the ITEM_MAXAPPVERSION with the
+  // maxVersion
+  let app = aAddon.matchingTargetApplication;
+  if (app)
+    var maxVersion = app.maxVersion;
+  else
+    maxVersion = "";
+  uri = uri.replace(/%ITEM_MAXAPPVERSION%/g, maxVersion);
+
+  let compatMode = "normal";
+  if (!AddonManager.checkCompatibility)
+    compatMode = "ignore";
+  else if (AddonManager.strictCompatibility)
+    compatMode = "strict";
+  uri = uri.replace(/%COMPATIBILITY_MODE%/g, compatMode);
+
+  return uri;
+}
+
+function removeAsync(aFile) {
+  return Task.spawn(function*() {
+    let info = null;
+    try {
+      info = yield OS.File.stat(aFile.path);
+      if (info.isDir)
+        yield OS.File.removeDir(aFile.path);
+      else
+        yield OS.File.remove(aFile.path);
+    }
+    catch (e) {
+      if (!(e instanceof OS.File.Error) || ! e.becauseNoSuchFile)
+        throw e;
+      // The file has already gone away
+      return;
+    }
+  });
+}
+
+/**
+ * Recursively removes a directory or file fixing permissions when necessary.
+ *
+ * @param  aFile
+ *         The nsIFile to remove
+ */
+function recursiveRemove(aFile) {
+  let isDir = null;
+
+  try {
+    isDir = aFile.isDirectory();
+  }
+  catch (e) {
+    // If the file has already gone away then don't worry about it, this can
+    // happen on OSX where the resource fork is automatically moved with the
+    // data fork for the file. See bug 733436.
+    if (e.result == Cr.NS_ERROR_FILE_TARGET_DOES_NOT_EXIST)
+      return;
+    if (e.result == Cr.NS_ERROR_FILE_NOT_FOUND)
+      return;
+
+    throw e;
+  }
+
+  setFilePermissions(aFile, isDir ? FileUtils.PERMS_DIRECTORY
+                                  : FileUtils.PERMS_FILE);
+
+  try {
+    aFile.remove(true);
+    return;
+  }
+  catch (e) {
+    if (!aFile.isDirectory() || aFile.isSymlink()) {
+      logger.error("Failed to remove file " + aFile.path, e);
+      throw e;
+    }
+  }
+
+  // Use a snapshot of the directory contents to avoid possible issues with
+  // iterating over a directory while removing files from it (the YAFFS2
+  // embedded filesystem has this issue, see bug 772238), and to remove
+  // normal files before their resource forks on OSX (see bug 733436).
+  let entries = getDirectoryEntries(aFile, true);
+  entries.forEach(recursiveRemove);
+
+  try {
+    aFile.remove(true);
+  }
+  catch (e) {
+    logger.error("Failed to remove empty directory " + aFile.path, e);
+    throw e;
+  }
+}
+
+/**
+ * Returns the timestamp and leaf file name of the most recently modified
+ * entry in a directory,
+ * or simply the file's own timestamp if it is not a directory.
+ * Also returns the total number of items (directories and files) visited in the scan
+ *
+ * @param  aFile
+ *         A non-null nsIFile object
+ * @return [File Name, Epoch time, items visited], as described above.
+ */
+function recursiveLastModifiedTime(aFile) {
+  try {
+    let modTime = aFile.lastModifiedTime;
+    let fileName = aFile.leafName;
+    if (aFile.isFile())
+      return [fileName, modTime, 1];
+
+    if (aFile.isDirectory()) {
+      let entries = aFile.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
+      let entry;
+      let totalItems = 1;
+      while ((entry = entries.nextFile)) {
+        let [subName, subTime, items] = recursiveLastModifiedTime(entry);
+        totalItems += items;
+        if (subTime > modTime) {
+          modTime = subTime;
+          fileName = subName;
+        }
+      }
+      entries.close();
+      return [fileName, modTime, totalItems];
+    }
+  }
+  catch (e) {
+    logger.warn("Problem getting last modified time for " + aFile.path, e);
+  }
+
+  // If the file is something else, just ignore it.
+  return ["", 0, 0];
+}
+
+/**
+ * Gets a snapshot of directory entries.
+ *
+ * @param  aDir
+ *         Directory to look at
+ * @param  aSortEntries
+ *         True to sort entries by filename
+ * @return An array of nsIFile, or an empty array if aDir is not a readable directory
+ */
+function getDirectoryEntries(aDir, aSortEntries) {
+  let dirEnum;
+  try {
+    dirEnum = aDir.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
+    let entries = [];
+    while (dirEnum.hasMoreElements())
+      entries.push(dirEnum.nextFile);
+
+    if (aSortEntries) {
+      entries.sort(function(a, b) {
+        return a.path > b.path ? -1 : 1;
+      });
+    }
+
+    return entries
+  }
+  catch (e) {
+    logger.warn("Can't iterate directory " + aDir.path, e);
+    return [];
+  }
+  finally {
+    if (dirEnum) {
+      dirEnum.close();
+    }
+  }
+}
+
+/**
+ * Record a bit of per-addon telemetry
+ * @param aAddon the addon to record
+ */
+function recordAddonTelemetry(aAddon) {
+  let locale = aAddon.defaultLocale;
+  if (locale) {
+    if (locale.name)
+      XPIProvider.setTelemetry(aAddon.id, "name", locale.name);
+    if (locale.creator)
+      XPIProvider.setTelemetry(aAddon.id, "creator", locale.creator);
+  }
+}
+
+/**
+ * The on-disk state of an individual XPI, created from an Object
+ * as stored in the 'extensions.xpiState' pref.
+ */
+function XPIState(saved) {
+  for (let [short, long] of XPIState.prototype.fields) {
+    if (short in saved) {
+      this[long] = saved[short];
+    }
+  }
+}
+
+XPIState.prototype = {
+  fields: [['d', 'descriptor'],
+           ['e', 'enabled'],
+           ['v', 'version'],
+           ['st', 'scanTime'],
+           ['mt', 'manifestTime']],
+  /**
+   * Return the last modified time, based on enabled/disabled
+   */
+  get mtime() {
+    if (!this.enabled && ('manifestTime' in this) && this.manifestTime > this.scanTime) {
+      return this.manifestTime;
+    }
+    return this.scanTime;
+  },
+
+  toJSON() {
+    let json = {};
+    for (let [short, long] of XPIState.prototype.fields) {
+      if (long in this) {
+        json[short] = this[long];
+      }
+    }
+    return json;
+  },
+
+  /**
+   * Update the last modified time for an add-on on disk.
+   * @param aFile: nsIFile path of the add-on.
+   * @param aId: The add-on ID.
+   * @return True if the time stamp has changed.
+   */
+  getModTime(aFile, aId) {
+    let changed = false;
+    let scanStarted = Cu.now();
+    // For an unknown or enabled add-on, we do a full recursive scan.
+    if (!('scanTime' in this) || this.enabled) {
+      logger.debug('getModTime: Recursive scan of ' + aId);
+      let [modFile, modTime, items] = recursiveLastModifiedTime(aFile);
+      XPIProvider._mostRecentlyModifiedFile[aId] = modFile;
+      XPIProvider.setTelemetry(aId, "scan_items", items);
+      if (modTime != this.scanTime) {
+        this.scanTime = modTime;
+        changed = true;
+      }
+    }
+    // if the add-on is disabled, modified time is the install manifest time, if
+    // any. If no manifest exists, we assume this is a packed .xpi and use
+    // the time stamp of {path}
+    try {
+      // Get the install manifest update time, if any.
+      let maniFile = getManifestFileForDir(aFile);
+      if (!(aId in XPIProvider._mostRecentlyModifiedFile)) {
+        XPIProvider._mostRecentlyModifiedFile[aId] = maniFile.leafName;
+      }
+      let maniTime = maniFile.lastModifiedTime;
+      if (maniTime != this.manifestTime) {
+        this.manifestTime = maniTime;
+        changed = true;
+      }
+    } catch (e) {
+      // No manifest
+      delete this.manifestTime;
+      try {
+        let dtime = aFile.lastModifiedTime;
+        if (dtime != this.scanTime) {
+          changed = true;
+          this.scanTime = dtime;
+        }
+      } catch (e) {
+        logger.warn("Can't get modified time of ${file}: ${e}", {file: aFile.path, e: e});
+        changed = true;
+        this.scanTime = 0;
+      }
+    }
+    // Record duration of file-modified check
+    XPIProvider.setTelemetry(aId, "scan_MS", Math.round(Cu.now() - scanStarted));
+
+    return changed;
+  },
+
+  /**
+   * Update the XPIState to match an XPIDatabase entry; if 'enabled' is changed to true,
+   * update the last-modified time. This should probably be made async, but for now we
+   * don't want to maintain parallel sync and async versions of the scan.
+   * Caller is responsible for doing XPIStates.save() if necessary.
+   * @param aDBAddon The DBAddonInternal for this add-on.
+   * @param aUpdated The add-on was updated, so we must record new modified time.
+   */
+  syncWithDB(aDBAddon, aUpdated = false) {
+    logger.debug("Updating XPIState for " + JSON.stringify(aDBAddon));
+    // If the add-on changes from disabled to enabled, we should re-check the modified time.
+    // If this is a newly found add-on, it won't have an 'enabled' field but we
+    // did a full recursive scan in that case, so we don't need to do it again.
+    // We don't use aDBAddon.active here because it's not updated until after restart.
+    let mustGetMod = (aDBAddon.visible && !aDBAddon.disabled && !this.enabled);
+    this.enabled = (aDBAddon.visible && !aDBAddon.disabled);
+    this.version = aDBAddon.version;
+    // XXX Eventually also copy bootstrap, etc.
+    if (aUpdated || mustGetMod) {
+      this.getModTime(new nsIFile(this.descriptor), aDBAddon.id);
+      if (this.scanTime != aDBAddon.updateDate) {
+        aDBAddon.updateDate = this.scanTime;
+        XPIDatabase.saveChanges();
+      }
+    }
+  },
+};
+
+// Constructor for an ES6 Map that knows how to convert itself into a
+// regular object for toJSON().
+function SerializableMap() {
+  let m = new Map();
+  m.toJSON = function() {
+    let out = {}
+    for (let [key, val] of m) {
+      out[key] = val;
+    }
+    return out;
+  };
+  return m;
+}
+
+/**
+ * Keeps track of the state of XPI add-ons on the file system.
+ */
+this.XPIStates = {
+  // Map(location name -> Map(add-on ID -> XPIState))
+  db: null,
+
+  get size() {
+    if (!this.db) {
+      return 0;
+    }
+    let count = 0;
+    for (let location of this.db.values()) {
+      count += location.size;
+    }
+    return count;
+  },
+
+  /**
+   * Load extension state data from preferences.
+   */
+  loadExtensionState() {
+    let state = {};
+
+    // Clear out old directory state cache.
+    Preferences.reset(PREF_INSTALL_CACHE);
+
+    let cache = Preferences.get(PREF_XPI_STATE, "{}");
+    try {
+      state = JSON.parse(cache);
+    } catch (e) {
+      logger.warn("Error parsing extensions.xpiState ${state}: ${error}",
+          {state: cache, error: e});
+    }
+    logger.debug("Loaded add-on state from prefs: ${}", state);
+    return state;
+  },
+
+  /**
+   * Walk through all install locations, highest priority first,
+   * comparing the on-disk state of extensions to what is stored in prefs.
+   * @return true if anything has changed.
+   */
+  getInstallState() {
+    let oldState = this.loadExtensionState();
+    let changed = false;
+    this.db = new SerializableMap();
+
+    for (let location of XPIProvider.installLocations) {
+      // The list of add-on like file/directory names in the install location.
+      let addons = location.getAddonLocations();
+      // The results of scanning this location.
+      let foundAddons = new SerializableMap();
+
+      // What our old state thinks should be in this location.
+      let locState = {};
+      if (location.name in oldState) {
+        locState = oldState[location.name];
+        // We've seen this location.
+        delete oldState[location.name];
+      }
+
+      for (let [id, file] of addons) {
+        if (!(id in locState)) {
+          logger.debug("New add-on ${id} in ${location}", {id: id, location: location.name});
+          let xpiState = new XPIState({d: file.persistentDescriptor});
+          changed = xpiState.getModTime(file, id) || changed;
+          foundAddons.set(id, xpiState);
+        } else {
+          let xpiState = new XPIState(locState[id]);
+          // We found this add-on in the file system
+          delete locState[id];
+
+          changed = xpiState.getModTime(file, id) || changed;
+
+          if (file.persistentDescriptor != xpiState.descriptor) {
+            xpiState.descriptor = file.persistentDescriptor;
+            changed = true;
+          }
+          if (changed) {
+            logger.debug("Changed add-on ${id} in ${location}", {id: id, location: location.name});
+          }
+          else {
+            logger.debug("Existing add-on ${id} in ${location}", {id: id, location: location.name});
+          }
+          foundAddons.set(id, xpiState);
+        }
+        XPIProvider.setTelemetry(id, "location", location.name);
+      }
+
+      // Anything left behind in oldState was removed from the file system.
+      for (let id in locState) {
+        changed = true;
+        break;
+      }
+      // If we found anything, add this location to our database.
+      if (foundAddons.size != 0) {
+        this.db.set(location.name, foundAddons);
+      }
+    }
+
+    // If there's anything left in oldState, an install location that held add-ons
+    // was removed from the browser configuration.
+    for (let location in oldState) {
+      changed = true;
+      break;
+    }
+
+    logger.debug("getInstallState changed: ${rv}, state: ${state}",
+        {rv: changed, state: this.db});
+    return changed;
+  },
+
+  /**
+   * Get the Map of XPI states for a particular location.
+   * @param aLocation The name of the install location.
+   * @return Map (id -> XPIState) or null if there are no add-ons in the location.
+   */
+  getLocation(aLocation) {
+    return this.db.get(aLocation);
+  },
+
+  /**
+   * Get the XPI state for a specific add-on in a location.
+   * If the state is not in our cache, return null.
+   * @param aLocation The name of the location where the add-on is installed.
+   * @param aId       The add-on ID
+   * @return The XPIState entry for the add-on, or null.
+   */
+  getAddon(aLocation, aId) {
+    let location = this.db.get(aLocation);
+    if (!location) {
+      return null;
+    }
+    return location.get(aId);
+  },
+
+  /**
+   * Find the highest priority location of an add-on by ID and return the
+   * location and the XPIState.
+   * @param aId   The add-on ID
+   * @return [locationName, XPIState] if the add-on is found, [undefined, undefined]
+   *         if the add-on is not found.
+   */
+  findAddon(aId) {
+    // Fortunately the Map iterator returns in order of insertion, which is
+    // also our highest -> lowest priority order.
+    for (let [name, location] of this.db) {
+      if (location.has(aId)) {
+        return [name, location.get(aId)];
+      }
+    }
+    return [undefined, undefined];
+  },
+
+  /**
+   * Add a new XPIState for an add-on and synchronize it with the DBAddonInternal.
+   * @param aAddon DBAddonInternal for the new add-on.
+   */
+  addAddon(aAddon) {
+    let location = this.db.get(aAddon.location);
+    if (!location) {
+      // First add-on in this location.
+      location = new SerializableMap();
+      this.db.set(aAddon.location, location);
+    }
+    logger.debug("XPIStates adding add-on ${id} in ${location}: ${descriptor}", aAddon);
+    let xpiState = new XPIState({d: aAddon.descriptor});
+    location.set(aAddon.id, xpiState);
+    xpiState.syncWithDB(aAddon, true);
+    XPIProvider.setTelemetry(aAddon.id, "location", aAddon.location);
+  },
+
+  /**
+   * Save the current state of installed add-ons.
+   * XXX this *totally* should be a .json file using DeferredSave...
+   */
+  save() {
+    let cache = JSON.stringify(this.db);
+    Services.prefs.setCharPref(PREF_XPI_STATE, cache);
+  },
+
+  /**
+   * Remove the XPIState for an add-on and save the new state.
+   * @param aLocation  The name of the add-on location.
+   * @param aId        The ID of the add-on.
+   */
+  removeAddon(aLocation, aId) {
+    logger.debug("Removing XPIState for " + aLocation + ":" + aId);
+    let location = this.db.get(aLocation);
+    if (!location) {
+      return;
+    }
+    location.delete(aId);
+    if (location.size == 0) {
+      this.db.delete(aLocation);
+    }
+    this.save();
+  },
+};
+
+this.XPIProvider = {
+  get name() {
+    return "XPIProvider";
+  },
+
+  // An array of known install locations
+  installLocations: null,
+  // A dictionary of known install locations by name
+  installLocationsByName: null,
+  // An array of currently active AddonInstalls
+  installs: null,
+  // The default skin for the application
+  defaultSkin: "classic/1.0",
+  // The current skin used by the application
+  currentSkin: null,
+  // The selected skin to be used by the application when it is restarted. This
+  // will be the same as currentSkin when it is the skin to be used when the
+  // application is restarted
+  selectedSkin: null,
+  // The value of the minCompatibleAppVersion preference
+  minCompatibleAppVersion: null,
+  // The value of the minCompatiblePlatformVersion preference
+  minCompatiblePlatformVersion: null,
+  // A dictionary of the file descriptors for bootstrappable add-ons by ID
+  bootstrappedAddons: {},
+  // A Map of active addons to their bootstrapScope by ID
+  activeAddons: new Map(),
+  // True if the platform could have activated extensions
+  extensionsActive: false,
+  // True if all of the add-ons found during startup were installed in the
+  // application install location
+  allAppGlobal: true,
+  // A string listing the enabled add-ons for annotating crash reports
+  enabledAddons: null,
+  // Keep track of startup phases for telemetry
+  runPhase: XPI_STARTING,
+  // Keep track of the newest file in each add-on, in case we want to
+  // report it to telemetry.
+  _mostRecentlyModifiedFile: {},
+  // Per-addon telemetry information
+  _telemetryDetails: {},
+  // A Map from an add-on install to its ID
+  _addonFileMap: new Map(),
+  // Flag to know if ToolboxProcess.jsm has already been loaded by someone or not
+  _toolboxProcessLoaded: false,
+  // Have we started shutting down bootstrap add-ons?
+  _closing: false,
+
+  /**
+   * Returns an array of the add-on values in `bootstrappedAddons`,
+   * sorted so that all of an add-on's dependencies appear in the array
+   * before itself.
+   *
+   * @returns {Array<object>}
+   *   A sorted array of add-on objects. Each value is a copy of the
+   *   corresponding value in the `bootstrappedAddons` object, with an
+   *   additional `id` property, which corresponds to the key in that
+   *   object, which is the same as the add-ons ID.
+   */
+  sortBootstrappedAddons: function() {
+    let addons = {};
+
+    // Sort the list of IDs so that the ordering is deterministic.
+    for (let id of Object.keys(this.bootstrappedAddons).sort()) {
+      addons[id] = Object.assign({id}, this.bootstrappedAddons[id]);
+    }
+
+    let res = new Set();
+    let seen = new Set();
+
+    let add = addon => {
+      seen.add(addon.id);
+
+      for (let id of addon.dependencies || []) {
+        if (id in addons && !seen.has(id)) {
+          add(addons[id]);
+        }
+      }
+
+      res.add(addon.id);
+    }
+
+    Object.values(addons).forEach(add);
+
+    return Array.from(res, id => addons[id]);
+  },
+
+  /*
+   * Set a value in the telemetry hash for a given ID
+   */
+  setTelemetry: function(aId, aName, aValue) {
+    if (!this._telemetryDetails[aId])
+      this._telemetryDetails[aId] = {};
+    this._telemetryDetails[aId][aName] = aValue;
+  },
+
+  // Keep track of in-progress operations that support cancel()
+  _inProgress: [],
+
+  doing: function(aCancellable) {
+    this._inProgress.push(aCancellable);
+  },
+
+  done: function(aCancellable) {
+    let i = this._inProgress.indexOf(aCancellable);
+    if (i != -1) {
+      this._inProgress.splice(i, 1);
+      return true;
+    }
+    return false;
+  },
+
+  cancelAll: function() {
+    // Cancelling one may alter _inProgress, so don't use a simple iterator
+    while (this._inProgress.length > 0) {
+      let c = this._inProgress.shift();
+      try {
+        c.cancel();
+      }
+      catch (e) {
+        logger.warn("Cancel failed", e);
+      }
+    }
+  },
+
+  /**
+   * Adds or updates a URI mapping for an Addon.id.
+   *
+   * Mappings should not be removed at any point. This is so that the mappings
+   * will be still valid after an add-on gets disabled or uninstalled, as
+   * consumers may still have URIs of (leaked) resources they want to map.
+   */
+  _addURIMapping: function(aID, aFile) {
+    logger.info("Mapping " + aID + " to " + aFile.path);
+    this._addonFileMap.set(aID, aFile.path);
+
+    AddonPathService.insertPath(aFile.path, aID);
+  },
+
+  /**
+   * Resolve a URI back to physical file.
+   *
+   * Of course, this works only for URIs pointing to local resources.
+   *
+   * @param  aURI
+   *         URI to resolve
+   * @return
+   *         resolved nsIFileURL
+   */
+  _resolveURIToFile: function(aURI) {
+    switch (aURI.scheme) {
+      case "jar":
+      case "file":
+        if (aURI instanceof Ci.nsIJARURI) {
+          return this._resolveURIToFile(aURI.JARFile);
+        }
+        return aURI;
+
+      case "chrome":
+        aURI = ChromeRegistry.convertChromeURL(aURI);
+        return this._resolveURIToFile(aURI);
+
+      case "resource":
+        aURI = Services.io.newURI(ResProtocolHandler.resolveURI(aURI), null,
+                                  null);
+        return this._resolveURIToFile(aURI);
+
+      case "view-source":
+        aURI = Services.io.newURI(aURI.path, null, null);
+        return this._resolveURIToFile(aURI);
+
+      case "about":
+        if (aURI.spec == "about:blank") {
+          // Do not attempt to map about:blank
+          return null;
+        }
+
+        let chan;
+        try {
+          chan = NetUtil.newChannel({
+            uri: aURI,
+            loadUsingSystemPrincipal: true
+          });
+        }
+        catch (ex) {
+          return null;
+        }
+        // Avoid looping
+        if (chan.URI.equals(aURI)) {
+          return null;
+        }
+        // We want to clone the channel URI to avoid accidentially keeping
+        // unnecessary references to the channel or implementation details
+        // around.
+        return this._resolveURIToFile(chan.URI.clone());
+
+      default:
+        return null;
+    }
+  },
+
+  /**
+   * Starts the XPI provider initializes the install locations and prefs.
+   *
+   * @param  aAppChanged
+   *         A tri-state value. Undefined means the current profile was created
+   *         for this session, true means the profile already existed but was
+   *         last used with an application with a different version number,
+   *         false means that the profile was last used by this version of the
+   *         application.
+   * @param  aOldAppVersion
+   *         The version of the application last run with this profile or null
+   *         if it is a new profile or the version is unknown
+   * @param  aOldPlatformVersion
+   *         The version of the platform last run with this profile or null
+   *         if it is a new profile or the version is unknown
+   */
+  startup: function(aAppChanged, aOldAppVersion, aOldPlatformVersion) {
+    function addDirectoryInstallLocation(aName, aKey, aPaths, aScope, aLocked) {
+      try {
+        var dir = FileUtils.getDir(aKey, aPaths);
+      }
+      catch (e) {
+        // Some directories aren't defined on some platforms, ignore them
+        logger.debug("Skipping unavailable install location " + aName);
+        return;
+      }
+
+      try {
+        var location = aLocked ? new DirectoryInstallLocation(aName, dir, aScope)
+                               : new MutableDirectoryInstallLocation(aName, dir, aScope);
+      }
+      catch (e) {
+        logger.warn("Failed to add directory install location " + aName, e);
+        return;
+      }
+
+      XPIProvider.installLocations.push(location);
+      XPIProvider.installLocationsByName[location.name] = location;
+    }
+
+    function addSystemAddonInstallLocation(aName, aKey, aPaths, aScope) {
+      try {
+        var dir = FileUtils.getDir(aKey, aPaths);
+      }
+      catch (e) {
+        // Some directories aren't defined on some platforms, ignore them
+        logger.debug("Skipping unavailable install location " + aName);
+        return;
+      }
+
+      try {
+        var location = new SystemAddonInstallLocation(aName, dir, aScope, aAppChanged !== false);
+      }
+      catch (e) {
+        logger.warn("Failed to add system add-on install location " + aName, e);
+        return;
+      }
+
+      XPIProvider.installLocations.push(location);
+      XPIProvider.installLocationsByName[location.name] = location;
+    }
+
+    function addRegistryInstallLocation(aName, aRootkey, aScope) {
+      try {
+        var location = new WinRegInstallLocation(aName, aRootkey, aScope);
+      }
+      catch (e) {
+        logger.warn("Failed to add registry install location " + aName, e);
+        return;
+      }
+
+      XPIProvider.installLocations.push(location);
+      XPIProvider.installLocationsByName[location.name] = location;
+    }
+
+    try {
+      AddonManagerPrivate.recordTimestamp("XPI_startup_begin");
+
+      logger.debug("startup");
+      this.runPhase = XPI_STARTING;
+      this.installs = new Set();
+      this.installLocations = [];
+      this.installLocationsByName = {};
+      // Hook for tests to detect when saving database at shutdown time fails
+      this._shutdownError = null;
+      // Clear this at startup for xpcshell test restarts
+      this._telemetryDetails = {};
+      // Register our details structure with AddonManager
+      AddonManagerPrivate.setTelemetryDetails("XPI", this._telemetryDetails);
+
+      let hasRegistry = ("nsIWindowsRegKey" in Ci);
+
+      let enabledScopes = Preferences.get(PREF_EM_ENABLED_SCOPES,
+                                          AddonManager.SCOPE_ALL);
+
+      // These must be in order of priority, highest to lowest,
+      // for processFileChanges etc. to work
+
+      XPIProvider.installLocations.push(TemporaryInstallLocation);
+      XPIProvider.installLocationsByName[TemporaryInstallLocation.name] =
+        TemporaryInstallLocation;
+
+      // The profile location is always enabled
+      addDirectoryInstallLocation(KEY_APP_PROFILE, KEY_PROFILEDIR,
+                                  [DIR_EXTENSIONS],
+                                  AddonManager.SCOPE_PROFILE, false);
+
+      addSystemAddonInstallLocation(KEY_APP_SYSTEM_ADDONS, KEY_PROFILEDIR,
+                                    [DIR_SYSTEM_ADDONS],
+                                    AddonManager.SCOPE_PROFILE);
+
+      addDirectoryInstallLocation(KEY_APP_SYSTEM_DEFAULTS, KEY_APP_FEATURES,
+                                  [], AddonManager.SCOPE_PROFILE, true);
+
+      if (enabledScopes & AddonManager.SCOPE_USER) {
+        addDirectoryInstallLocation(KEY_APP_SYSTEM_USER, "XREUSysExt",
+                                    [Services.appinfo.ID],
+                                    AddonManager.SCOPE_USER, true);
+        if (hasRegistry) {
+          addRegistryInstallLocation("winreg-app-user",
+                                     Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                                     AddonManager.SCOPE_USER);
+        }
+      }
+
+      addDirectoryInstallLocation(KEY_APP_GLOBAL, KEY_ADDON_APP_DIR,
+                                  [DIR_EXTENSIONS],
+                                  AddonManager.SCOPE_APPLICATION, true);
+
+      if (enabledScopes & AddonManager.SCOPE_SYSTEM) {
+        addDirectoryInstallLocation(KEY_APP_SYSTEM_SHARE, "XRESysSExtPD",
+                                    [Services.appinfo.ID],
+                                    AddonManager.SCOPE_SYSTEM, true);
+        addDirectoryInstallLocation(KEY_APP_SYSTEM_LOCAL, "XRESysLExtPD",
+                                    [Services.appinfo.ID],
+                                    AddonManager.SCOPE_SYSTEM, true);
+        if (hasRegistry) {
+          addRegistryInstallLocation("winreg-app-global",
+                                     Ci.nsIWindowsRegKey.ROOT_KEY_LOCAL_MACHINE,
+                                     AddonManager.SCOPE_SYSTEM);
+        }
+      }
+
+      let defaultPrefs = new Preferences({ defaultBranch: true });
+      this.defaultSkin = defaultPrefs.get(PREF_GENERAL_SKINS_SELECTEDSKIN,
+                                          "classic/1.0");
+      this.currentSkin = Preferences.get(PREF_GENERAL_SKINS_SELECTEDSKIN,
+                                         this.defaultSkin);
+      this.selectedSkin = this.currentSkin;
+      this.applyThemeChange();
+
+      this.minCompatibleAppVersion = Preferences.get(PREF_EM_MIN_COMPAT_APP_VERSION,
+                                                     null);
+      this.minCompatiblePlatformVersion = Preferences.get(PREF_EM_MIN_COMPAT_PLATFORM_VERSION,
+                                                          null);
+      this.enabledAddons = "";
+
+      Services.prefs.addObserver(PREF_EM_MIN_COMPAT_APP_VERSION, this, false);
+      Services.prefs.addObserver(PREF_EM_MIN_COMPAT_PLATFORM_VERSION, this, false);
+      Services.prefs.addObserver(PREF_E10S_ADDON_BLOCKLIST, this, false);
+      Services.prefs.addObserver(PREF_E10S_ADDON_POLICY, this, false);
+      if (!REQUIRE_SIGNING)
+        Services.prefs.addObserver(PREF_XPI_SIGNATURES_REQUIRED, this, false);
+      Services.obs.addObserver(this, NOTIFICATION_FLUSH_PERMISSIONS, false);
+
+      // Cu.isModuleLoaded can fail here for external XUL apps where there is
+      // no chrome.manifest that defines resource://devtools.
+      if (ResProtocolHandler.hasSubstitution("devtools")) {
+        if (Cu.isModuleLoaded("resource://devtools/client/framework/ToolboxProcess.jsm")) {
+          // If BrowserToolboxProcess is already loaded, set the boolean to true
+          // and do whatever is needed
+          this._toolboxProcessLoaded = true;
+          BrowserToolboxProcess.on("connectionchange",
+                                   this.onDebugConnectionChange.bind(this));
+        } else {
+          // Else, wait for it to load
+          Services.obs.addObserver(this, NOTIFICATION_TOOLBOXPROCESS_LOADED, false);
+        }
+      }
+
+      let flushCaches = this.checkForChanges(aAppChanged, aOldAppVersion,
+                                             aOldPlatformVersion);
+
+      // Changes to installed extensions may have changed which theme is selected
+      this.applyThemeChange();
+
+      AddonManagerPrivate.markProviderSafe(this);
+
+      if (aAppChanged && !this.allAppGlobal &&
+          Preferences.get(PREF_EM_SHOW_MISMATCH_UI, true)) {
+        let addonsToUpdate = this.shouldForceUpdateCheck(aAppChanged);
+        if (addonsToUpdate) {
+          this.showUpgradeUI(addonsToUpdate);
+          flushCaches = true;
+        }
+      }
+
+      if (flushCaches) {
+        Services.obs.notifyObservers(null, "startupcache-invalidate", null);
+        // UI displayed early in startup (like the compatibility UI) may have
+        // caused us to cache parts of the skin or locale in memory. These must
+        // be flushed to allow extension provided skins and locales to take full
+        // effect
+        Services.obs.notifyObservers(null, "chrome-flush-skin-caches", null);
+        Services.obs.notifyObservers(null, "chrome-flush-caches", null);
+      }
+
+      this.enabledAddons = Preferences.get(PREF_EM_ENABLED_ADDONS, "");
+
+      if ("nsICrashReporter" in Ci &&
+          Services.appinfo instanceof Ci.nsICrashReporter) {
+        // Annotate the crash report with relevant add-on information.
+        try {
+          Services.appinfo.annotateCrashReport("Theme", this.currentSkin);
+        } catch (e) { }
+        try {
+          Services.appinfo.annotateCrashReport("EMCheckCompatibility",
+                                               AddonManager.checkCompatibility);
+        } catch (e) { }
+        this.addAddonsToCrashReporter();
+      }
+
+      try {
+        AddonManagerPrivate.recordTimestamp("XPI_bootstrap_addons_begin");
+
+        for (let addon of this.sortBootstrappedAddons()) {
+          try {
+            let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+            file.persistentDescriptor = addon.descriptor;
+            let reason = BOOTSTRAP_REASONS.APP_STARTUP;
+            // Eventually set INSTALLED reason when a bootstrap addon
+            // is dropped in profile folder and automatically installed
+            if (AddonManager.getStartupChanges(AddonManager.STARTUP_CHANGE_INSTALLED)
+                            .indexOf(addon.id) !== -1)
+              reason = BOOTSTRAP_REASONS.ADDON_INSTALL;
+            this.callBootstrapMethod(createAddonDetails(addon.id, addon),
+                                     file, "startup", reason);
+          }
+          catch (e) {
+            logger.error("Failed to load bootstrap addon " + addon.id + " from " +
+                         addon.descriptor, e);
+          }
+        }
+        AddonManagerPrivate.recordTimestamp("XPI_bootstrap_addons_end");
+      }
+      catch (e) {
+        logger.error("bootstrap startup failed", e);
+        AddonManagerPrivate.recordException("XPI-BOOTSTRAP", "startup failed", e);
+      }
+
+      // Let these shutdown a little earlier when they still have access to most
+      // of XPCOM
+      Services.obs.addObserver({
+        observe: function(aSubject, aTopic, aData) {
+          XPIProvider._closing = true;
+          for (let addon of XPIProvider.sortBootstrappedAddons().reverse()) {
+            // If no scope has been loaded for this add-on then there is no need
+            // to shut it down (should only happen when a bootstrapped add-on is
+            // pending enable)
+            if (!XPIProvider.activeAddons.has(addon.id))
+              continue;
+
+            let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+            file.persistentDescriptor = addon.descriptor;
+            let addonDetails = createAddonDetails(addon.id, addon);
+
+            // If the add-on was pending disable then shut it down and remove it
+            // from the persisted data.
+            if (addon.disable) {
+              XPIProvider.callBootstrapMethod(addonDetails, file, "shutdown",
+                                              BOOTSTRAP_REASONS.ADDON_DISABLE);
+              delete XPIProvider.bootstrappedAddons[addon.id];
+            }
+            else {
+              XPIProvider.callBootstrapMethod(addonDetails, file, "shutdown",
+                                              BOOTSTRAP_REASONS.APP_SHUTDOWN);
+            }
+          }
+          Services.obs.removeObserver(this, "quit-application-granted");
+        }
+      }, "quit-application-granted", false);
+
+      // Detect final-ui-startup for telemetry reporting
+      Services.obs.addObserver({
+        observe: function(aSubject, aTopic, aData) {
+          AddonManagerPrivate.recordTimestamp("XPI_finalUIStartup");
+          XPIProvider.runPhase = XPI_AFTER_UI_STARTUP;
+          Services.obs.removeObserver(this, "final-ui-startup");
+        }
+      }, "final-ui-startup", false);
+
+      AddonManagerPrivate.recordTimestamp("XPI_startup_end");
+
+      this.extensionsActive = true;
+      this.runPhase = XPI_BEFORE_UI_STARTUP;
+
+      let timerManager = Cc["@mozilla.org/updates/timer-manager;1"].
+                         getService(Ci.nsIUpdateTimerManager);
+      timerManager.registerTimer("xpi-signature-verification", () => {
+        this.verifySignatures();
+      }, XPI_SIGNATURE_CHECK_PERIOD);
+    }
+    catch (e) {
+      logger.error("startup failed", e);
+      AddonManagerPrivate.recordException("XPI", "startup failed", e);
+    }
+  },
+
+  /**
+   * Shuts down the database and releases all references.
+   * Return: Promise{integer} resolves / rejects with the result of
+   *                          flushing the XPI Database if it was loaded,
+   *                          0 otherwise.
+   */
+  shutdown: function() {
+    logger.debug("shutdown");
+
+    // Stop anything we were doing asynchronously
+    this.cancelAll();
+
+    this.bootstrappedAddons = {};
+    this.activeAddons.clear();
+    this.enabledAddons = null;
+    this.allAppGlobal = true;
+
+    // If there are pending operations then we must update the list of active
+    // add-ons
+    if (Preferences.get(PREF_PENDING_OPERATIONS, false)) {
+      AddonManagerPrivate.recordSimpleMeasure("XPIDB_pending_ops", 1);
+      XPIDatabase.updateActiveAddons();
+      Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS,
+                                 !XPIDatabase.writeAddonsList());
+    }
+
+    this.installs = null;
+    this.installLocations = null;
+    this.installLocationsByName = null;
+
+    // This is needed to allow xpcshell tests to simulate a restart
+    this.extensionsActive = false;
+    this._addonFileMap.clear();
+
+    if (gLazyObjectsLoaded) {
+      let done = XPIDatabase.shutdown();
+      done.then(
+        ret => {
+          logger.debug("Notifying XPI shutdown observers");
+          Services.obs.notifyObservers(null, "xpi-provider-shutdown", null);
+        },
+        err => {
+          logger.debug("Notifying XPI shutdown observers");
+          this._shutdownError = err;
+          Services.obs.notifyObservers(null, "xpi-provider-shutdown", err);
+        }
+      );
+      return done;
+    }
+    logger.debug("Notifying XPI shutdown observers");
+    Services.obs.notifyObservers(null, "xpi-provider-shutdown", null);
+    return undefined;
+  },
+
+  /**
+   * Applies any pending theme change to the preferences.
+   */
+  applyThemeChange: function() {
+    if (!Preferences.get(PREF_DSS_SWITCHPENDING, false))
+      return;
+
+    // Tell the Chrome Registry which Skin to select
+    try {
+      this.selectedSkin = Preferences.get(PREF_DSS_SKIN_TO_SELECT);
+      Services.prefs.setCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN,
+                                 this.selectedSkin);
+      Services.prefs.clearUserPref(PREF_DSS_SKIN_TO_SELECT);
+      logger.debug("Changed skin to " + this.selectedSkin);
+      this.currentSkin = this.selectedSkin;
+    }
+    catch (e) {
+      logger.error("Error applying theme change", e);
+    }
+    Services.prefs.clearUserPref(PREF_DSS_SWITCHPENDING);
+  },
+
+  /**
+   * If the application has been upgraded and there are add-ons outside the
+   * application directory then we may need to synchronize compatibility
+   * information but only if the mismatch UI isn't disabled.
+   *
+   * @returns False if no update check is needed, otherwise an array of add-on
+   *          IDs to check for updates. Array may be empty if no add-ons can be/need
+   *           to be updated, but the metadata check needs to be performed.
+   */
+  shouldForceUpdateCheck: function(aAppChanged) {
+    AddonManagerPrivate.recordSimpleMeasure("XPIDB_metadata_age", AddonRepository.metadataAge());
+
+    let startupChanges = AddonManager.getStartupChanges(AddonManager.STARTUP_CHANGE_DISABLED);
+    logger.debug("shouldForceUpdateCheck startupChanges: " + startupChanges.toSource());
+    AddonManagerPrivate.recordSimpleMeasure("XPIDB_startup_disabled", startupChanges.length);
+
+    let forceUpdate = [];
+    if (startupChanges.length > 0) {
+    let addons = XPIDatabase.getAddons();
+      for (let addon of addons) {
+        if ((startupChanges.indexOf(addon.id) != -1) &&
+            (addon.permissions() & AddonManager.PERM_CAN_UPGRADE) &&
+            !addon.isCompatible) {
+          logger.debug("shouldForceUpdateCheck: can upgrade disabled add-on " + addon.id);
+          forceUpdate.push(addon.id);
+        }
+      }
+    }
+
+    if (AddonRepository.isMetadataStale()) {
+      logger.debug("shouldForceUpdateCheck: metadata is stale");
+      return forceUpdate;
+    }
+    if (forceUpdate.length > 0) {
+      return forceUpdate;
+    }
+
+    return false;
+  },
+
+  /**
+   * Shows the "Compatibility Updates" UI.
+   *
+   * @param  aAddonIDs
+   *         Array opf addon IDs that were disabled by the application update, and
+   *         should therefore be checked for updates.
+   */
+  showUpgradeUI: function(aAddonIDs) {
+    logger.debug("XPI_showUpgradeUI: " + aAddonIDs.toSource());
+    Services.telemetry.getHistogramById("ADDON_MANAGER_UPGRADE_UI_SHOWN").add(1);
+
+    // Flip a flag to indicate that we interrupted startup with an interactive prompt
+    Services.startup.interrupted = true;
+
+    var variant = Cc["@mozilla.org/variant;1"].
+                  createInstance(Ci.nsIWritableVariant);
+    variant.setFromVariant(aAddonIDs);
+
+    // This *must* be modal as it has to block startup.
+    var features = "chrome,centerscreen,dialog,titlebar,modal";
+    var ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].
+             getService(Ci.nsIWindowWatcher);
+    ww.openWindow(null, URI_EXTENSION_UPDATE_DIALOG, "", features, variant);
+
+    // Ensure any changes to the add-ons list are flushed to disk
+    Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS,
+                               !XPIDatabase.writeAddonsList());
+  },
+
+  updateSystemAddons: Task.async(function*() {
+    let systemAddonLocation = XPIProvider.installLocationsByName[KEY_APP_SYSTEM_ADDONS];
+    if (!systemAddonLocation)
+      return;
+
+    // Don't do anything in safe mode
+    if (Services.appinfo.inSafeMode)
+      return;
+
+    // Download the list of system add-ons
+    let url = Preferences.get(PREF_SYSTEM_ADDON_UPDATE_URL, null);
+    if (!url) {
+      yield systemAddonLocation.cleanDirectories();
+      return;
+    }
+
+    url = UpdateUtils.formatUpdateURL(url);
+
+    logger.info(`Starting system add-on update check from ${url}.`);
+    let res = yield ProductAddonChecker.getProductAddonList(url);
+
+    // If there was no list then do nothing.
+    if (!res || !res.gmpAddons) {
+      logger.info("No system add-ons list was returned.");
+      yield systemAddonLocation.cleanDirectories();
+      return;
+    }
+
+    let addonList = new Map(
+      res.gmpAddons.map(spec => [spec.id, { spec, path: null, addon: null }]));
+
+    let getAddonsInLocation = (location) => {
+      return new Promise(resolve => {
+        XPIDatabase.getAddonsInLocation(location, resolve);
+      });
+    };
+
+    let setMatches = (wanted, existing) => {
+      if (wanted.size != existing.size)
+        return false;
+
+      for (let [id, addon] of existing) {
+        let wantedInfo = wanted.get(id);
+
+        if (!wantedInfo)
+          return false;
+        if (wantedInfo.spec.version != addon.version)
+          return false;
+      }
+
+      return true;
+    };
+
+    // If this matches the current set in the profile location then do nothing.
+    let updatedAddons = addonMap(yield getAddonsInLocation(KEY_APP_SYSTEM_ADDONS));
+    if (setMatches(addonList, updatedAddons)) {
+      logger.info("Retaining existing updated system add-ons.");
+      yield systemAddonLocation.cleanDirectories();
+      return;
+    }
+
+    // If this matches the current set in the default location then reset the
+    // updated set.
+    let defaultAddons = addonMap(yield getAddonsInLocation(KEY_APP_SYSTEM_DEFAULTS));
+    if (setMatches(addonList, defaultAddons)) {
+      logger.info("Resetting system add-ons.");
+      systemAddonLocation.resetAddonSet();
+      yield systemAddonLocation.cleanDirectories();
+      return;
+    }
+
+    // Download all the add-ons
+    let downloadAddon = Task.async(function*(item) {
+      try {
+        let sourceAddon = updatedAddons.get(item.spec.id);
+        if (sourceAddon && sourceAddon.version == item.spec.version) {
+          // Copying the file to a temporary location has some benefits. If the
+          // file is locked and cannot be read then we'll fall back to
+          // downloading a fresh copy. It also means we don't have to remember
+          // whether to delete the temporary copy later.
+          try {
+            let path = OS.Path.join(OS.Constants.Path.tmpDir, "tmpaddon");
+            let unique = yield OS.File.openUnique(path);
+            unique.file.close();
+            yield OS.File.copy(sourceAddon._sourceBundle.path, unique.path);
+            // Make sure to update file modification times so this is detected
+            // as a new add-on.
+            yield OS.File.setDates(unique.path);
+            item.path = unique.path;
+          }
+          catch (e) {
+            logger.warn(`Failed make temporary copy of ${sourceAddon._sourceBundle.path}.`, e);
+          }
+        }
+        if (!item.path) {
+          item.path = yield ProductAddonChecker.downloadAddon(item.spec);
+        }
+        item.addon = yield loadManifestFromFile(nsIFile(item.path), systemAddonLocation);
+      }
+      catch (e) {
+        logger.error(`Failed to download system add-on ${item.spec.id}`, e);
+      }
+    });
+    yield Promise.all(Array.from(addonList.values()).map(downloadAddon));
+
+    // The download promises all resolve regardless, now check if they all
+    // succeeded
+    let validateAddon = (item) => {
+      if (item.spec.id != item.addon.id) {
+        logger.warn(`Downloaded system add-on expected to be ${item.spec.id} but was ${item.addon.id}.`);
+        return false;
+      }
+
+      if (item.spec.version != item.addon.version) {
+        logger.warn(`Expected system add-on ${item.spec.id} to be version ${item.spec.version} but was ${item.addon.version}.`);
+        return false;
+      }
+
+      if (!systemAddonLocation.isValidAddon(item.addon))
+        return false;
+
+      return true;
+    }
+
+    if (!Array.from(addonList.values()).every(item => item.path && item.addon && validateAddon(item))) {
+      throw new Error("Rejecting updated system add-on set that either could not " +
+                      "be downloaded or contained unusable add-ons.");
+    }
+
+    // Install into the install location
+    logger.info("Installing new system add-on set");
+    yield systemAddonLocation.installAddonSet(Array.from(addonList.values())
+      .map(a => a.addon));
+  }),
+
+  /**
+   * Verifies that all installed add-ons are still correctly signed.
+   */
+  verifySignatures: function() {
+    XPIDatabase.getAddonList(a => true, (addons) => {
+      Task.spawn(function*() {
+        let changes = {
+          enabled: [],
+          disabled: []
+        };
+
+        for (let addon of addons) {
+          // The add-on might have vanished, we'll catch that on the next startup
+          if (!addon._sourceBundle.exists())
+            continue;
+
+          let signedState = yield verifyBundleSignedState(addon._sourceBundle, addon);
+
+          if (signedState != addon.signedState) {
+            addon.signedState = signedState;
+            AddonManagerPrivate.callAddonListeners("onPropertyChanged",
+                                                   addon.wrapper,
+                                                   ["signedState"]);
+          }
+
+          let disabled = XPIProvider.updateAddonDisabledState(addon);
+          if (disabled !== undefined)
+            changes[disabled ? "disabled" : "enabled"].push(addon.id);
+        }
+
+        XPIDatabase.saveChanges();
+
+        Services.obs.notifyObservers(null, "xpi-signature-changed", JSON.stringify(changes));
+      }).then(null, err => {
+        logger.error("XPI_verifySignature: " + err);
+      })
+    });
+  },
+
+  /**
+   * Persists changes to XPIProvider.bootstrappedAddons to its store (a pref).
+   */
+  persistBootstrappedAddons: function() {
+    // Experiments are disabled upon app load, so don't persist references.
+    let filtered = {};
+    for (let id in this.bootstrappedAddons) {
+      let entry = this.bootstrappedAddons[id];
+      if (entry.type == "experiment") {
+        continue;
+      }
+
+      filtered[id] = entry;
+    }
+
+    Services.prefs.setCharPref(PREF_BOOTSTRAP_ADDONS,
+                               JSON.stringify(filtered));
+  },
+
+  /**
+   * Adds a list of currently active add-ons to the next crash report.
+   */
+  addAddonsToCrashReporter: function() {
+    if (!("nsICrashReporter" in Ci) ||
+        !(Services.appinfo instanceof Ci.nsICrashReporter))
+      return;
+
+    // In safe mode no add-ons are loaded so we should not include them in the
+    // crash report
+    if (Services.appinfo.inSafeMode)
+      return;
+
+    let data = this.enabledAddons;
+    for (let id in this.bootstrappedAddons) {
+      data += (data ? "," : "") + encodeURIComponent(id) + ":" +
+              encodeURIComponent(this.bootstrappedAddons[id].version);
+    }
+
+    try {
+      Services.appinfo.annotateCrashReport("Add-ons", data);
+    }
+    catch (e) { }
+
+    let TelemetrySession =
+      Cu.import("resource://gre/modules/TelemetrySession.jsm", {}).TelemetrySession;
+    TelemetrySession.setAddOns(data);
+  },
+
+  /**
+   * Check the staging directories of install locations for any add-ons to be
+   * installed or add-ons to be uninstalled.
+   *
+   * @param  aManifests
+   *         A dictionary to add detected install manifests to for the purpose
+   *         of passing through updated compatibility information
+   * @return true if an add-on was installed or uninstalled
+   */
+  processPendingFileChanges: function(aManifests) {
+    let changed = false;
+    for (let location of this.installLocations) {
+      aManifests[location.name] = {};
+      // We can't install or uninstall anything in locked locations
+      if (location.locked) {
+        continue;
+      }
+
+      let stagingDir = location.getStagingDir();
+
+      try {
+        if (!stagingDir || !stagingDir.exists() || !stagingDir.isDirectory())
+          continue;
+      }
+      catch (e) {
+        logger.warn("Failed to find staging directory", e);
+        continue;
+      }
+
+      let seenFiles = [];
+      // Use a snapshot of the directory contents to avoid possible issues with
+      // iterating over a directory while removing files from it (the YAFFS2
+      // embedded filesystem has this issue, see bug 772238), and to remove
+      // normal files before their resource forks on OSX (see bug 733436).
+      let stagingDirEntries = getDirectoryEntries(stagingDir, true);
+      for (let stageDirEntry of stagingDirEntries) {
+        let id = stageDirEntry.leafName;
+
+        let isDir;
+        try {
+          isDir = stageDirEntry.isDirectory();
+        }
+        catch (e) {
+          if (e.result != Cr.NS_ERROR_FILE_TARGET_DOES_NOT_EXIST)
+            throw e;
+          // If the file has already gone away then don't worry about it, this
+          // can happen on OSX where the resource fork is automatically moved
+          // with the data fork for the file. See bug 733436.
+          continue;
+        }
+
+        if (!isDir) {
+          if (id.substring(id.length - 4).toLowerCase() == ".xpi") {
+            id = id.substring(0, id.length - 4);
+          }
+          else {
+            if (id.substring(id.length - 5).toLowerCase() != ".json") {
+              logger.warn("Ignoring file: " + stageDirEntry.path);
+              seenFiles.push(stageDirEntry.leafName);
+            }
+            continue;
+          }
+        }
+
+        // Check that the directory's name is a valid ID.
+        if (!gIDTest.test(id)) {
+          logger.warn("Ignoring directory whose name is not a valid add-on ID: " +
+               stageDirEntry.path);
+          seenFiles.push(stageDirEntry.leafName);
+          continue;
+        }
+
+        changed = true;
+
+        if (isDir) {
+          // Check if the directory contains an install manifest.
+          let manifest = getManifestFileForDir(stageDirEntry);
+
+          // If the install manifest doesn't exist uninstall this add-on in this
+          // install location.
+          if (!manifest) {
+            logger.debug("Processing uninstall of " + id + " in " + location.name);
+
+            try {
+              let addonFile = location.getLocationForID(id);
+              let addonToUninstall = syncLoadManifestFromFile(addonFile, location);
+              if (addonToUninstall.bootstrap) {
+                this.callBootstrapMethod(addonToUninstall, addonToUninstall._sourceBundle,
+                                         "uninstall", BOOTSTRAP_REASONS.ADDON_UNINSTALL);
+              }
+            }
+            catch (e) {
+              logger.warn("Failed to call uninstall for " + id, e);
+            }
+
+            try {
+              location.uninstallAddon(id);
+              seenFiles.push(stageDirEntry.leafName);
+            }
+            catch (e) {
+              logger.error("Failed to uninstall add-on " + id + " in " + location.name, e);
+            }
+            // The file check later will spot the removal and cleanup the database
+            continue;
+          }
+        }
+
+        aManifests[location.name][id] = null;
+        let existingAddonID = id;
+
+        let jsonfile = stagingDir.clone();
+        jsonfile.append(id + ".json");
+        // Assume this was a foreign install if there is no cached metadata file
+        let foreignInstall = !jsonfile.exists();
+        let addon;
+
+        try {
+          addon = syncLoadManifestFromFile(stageDirEntry, location);
+        }
+        catch (e) {
+          logger.error("Unable to read add-on manifest from " + stageDirEntry.path, e);
+          // This add-on can't be installed so just remove it now
+          seenFiles.push(stageDirEntry.leafName);
+          seenFiles.push(jsonfile.leafName);
+          continue;
+        }
+
+        if (mustSign(addon.type) &&
+            addon.signedState <= AddonManager.SIGNEDSTATE_MISSING) {
+          logger.warn("Refusing to install staged add-on " + id + " with signed state " + addon.signedState);
+          seenFiles.push(stageDirEntry.leafName);
+          seenFiles.push(jsonfile.leafName);
+          continue;
+        }
+
+        // Check for a cached metadata for this add-on, it may contain updated
+        // compatibility information
+        if (!foreignInstall) {
+          logger.debug("Found updated metadata for " + id + " in " + location.name);
+          let fis = Cc["@mozilla.org/network/file-input-stream;1"].
+                       createInstance(Ci.nsIFileInputStream);
+          let json = Cc["@mozilla.org/dom/json;1"].
+                     createInstance(Ci.nsIJSON);
+
+          try {
+            fis.init(jsonfile, -1, 0, 0);
+            let metadata = json.decodeFromStream(fis, jsonfile.fileSize);
+            addon.importMetadata(metadata);
+
+            // Pass this through to addMetadata so it knows this add-on was
+            // likely installed through the UI
+            aManifests[location.name][id] = addon;
+          }
+          catch (e) {
+            // If some data can't be recovered from the cached metadata then it
+            // is unlikely to be a problem big enough to justify throwing away
+            // the install, just log an error and continue
+            logger.error("Unable to read metadata from " + jsonfile.path, e);
+          }
+          finally {
+            fis.close();
+          }
+        }
+        seenFiles.push(jsonfile.leafName);
+
+        existingAddonID = addon.existingAddonID || id;
+
+        var oldBootstrap = null;
+        logger.debug("Processing install of " + id + " in " + location.name);
+        if (existingAddonID in this.bootstrappedAddons) {
+          try {
+            var existingAddon = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+            existingAddon.persistentDescriptor = this.bootstrappedAddons[existingAddonID].descriptor;
+            if (existingAddon.exists()) {
+              oldBootstrap = this.bootstrappedAddons[existingAddonID];
+
+              // We'll be replacing a currently active bootstrapped add-on so
+              // call its uninstall method
+              let newVersion = addon.version;
+              let oldVersion = oldBootstrap.version;
+              let uninstallReason = Services.vc.compare(oldVersion, newVersion) < 0 ?
+                                    BOOTSTRAP_REASONS.ADDON_UPGRADE :
+                                    BOOTSTRAP_REASONS.ADDON_DOWNGRADE;
+
+              this.callBootstrapMethod(createAddonDetails(existingAddonID, oldBootstrap),
+                                       existingAddon, "uninstall", uninstallReason,
+                                       { newVersion: newVersion });
+              this.unloadBootstrapScope(existingAddonID);
+              flushChromeCaches();
+            }
+          }
+          catch (e) {
+          }
+        }
+
+        try {
+          addon._sourceBundle = location.installAddon({
+            id,
+            source: stageDirEntry,
+            existingAddonID
+          });
+        }
+        catch (e) {
+          logger.error("Failed to install staged add-on " + id + " in " + location.name,
+                e);
+          // Re-create the staged install
+          new StagedAddonInstall(location, stageDirEntry, addon);
+          // Make sure not to delete the cached manifest json file
+          seenFiles.pop();
+
+          delete aManifests[location.name][id];
+
+          if (oldBootstrap) {
+            // Re-install the old add-on
+            this.callBootstrapMethod(createAddonDetails(existingAddonID, oldBootstrap),
+                                     existingAddon, "install",
+                                     BOOTSTRAP_REASONS.ADDON_INSTALL);
+          }
+          continue;
+        }
+      }
+
+      try {
+        location.cleanStagingDir(seenFiles);
+      }
+      catch (e) {
+        // Non-critical, just saves some perf on startup if we clean this up.
+        logger.debug("Error cleaning staging dir " + stagingDir.path, e);
+      }
+    }
+    return changed;
+  },
+
+  /**
+   * Installs any add-ons located in the extensions directory of the
+   * application's distribution specific directory into the profile unless a
+   * newer version already exists or the user has previously uninstalled the
+   * distributed add-on.
+   *
+   * @param  aManifests
+   *         A dictionary to add new install manifests to to save having to
+   *         reload them later
+   * @param  aAppChanged
+   *         See checkForChanges
+   * @return true if any new add-ons were installed
+   */
+  installDistributionAddons: function(aManifests, aAppChanged) {
+    let distroDir;
+    try {
+      distroDir = FileUtils.getDir(KEY_APP_DISTRIBUTION, [DIR_EXTENSIONS]);
+    }
+    catch (e) {
+      return false;
+    }
+
+    if (!distroDir.exists())
+      return false;
+
+    if (!distroDir.isDirectory())
+      return false;
+
+    let changed = false;
+    let profileLocation = this.installLocationsByName[KEY_APP_PROFILE];
+
+    let entries = distroDir.directoryEntries
+                           .QueryInterface(Ci.nsIDirectoryEnumerator);
+    let entry;
+    while ((entry = entries.nextFile)) {
+
+      let id = entry.leafName;
+
+      if (entry.isFile()) {
+        if (id.substring(id.length - 4).toLowerCase() == ".xpi") {
+          id = id.substring(0, id.length - 4);
+        }
+        else {
+          logger.debug("Ignoring distribution add-on that isn't an XPI: " + entry.path);
+          continue;
+        }
+      }
+      else if (!entry.isDirectory()) {
+        logger.debug("Ignoring distribution add-on that isn't a file or directory: " +
+            entry.path);
+        continue;
+      }
+
+      if (!gIDTest.test(id)) {
+        logger.debug("Ignoring distribution add-on whose name is not a valid add-on ID: " +
+            entry.path);
+        continue;
+      }
+
+      /* If this is not an upgrade and we've already handled this extension
+       * just continue */
+      if (!aAppChanged && Preferences.isSet(PREF_BRANCH_INSTALLED_ADDON + id)) {
+        continue;
+      }
+
+      let addon;
+      try {
+        addon = syncLoadManifestFromFile(entry, profileLocation);
+      }
+      catch (e) {
+        logger.warn("File entry " + entry.path + " contains an invalid add-on", e);
+        continue;
+      }
+
+      if (addon.id != id) {
+        logger.warn("File entry " + entry.path + " contains an add-on with an " +
+             "incorrect ID")
+        continue;
+      }
+
+      let existingEntry = null;
+      try {
+        existingEntry = profileLocation.getLocationForID(id);
+      }
+      catch (e) {
+      }
+
+      if (existingEntry) {
+        let existingAddon;
+        try {
+          existingAddon = syncLoadManifestFromFile(existingEntry, profileLocation);
+
+          if (Services.vc.compare(addon.version, existingAddon.version) <= 0)
+            continue;
+        }
+        catch (e) {
+          // Bad add-on in the profile so just proceed and install over the top
+          logger.warn("Profile contains an add-on with a bad or missing install " +
+               "manifest at " + existingEntry.path + ", overwriting", e);
+        }
+      }
+      else if (Preferences.get(PREF_BRANCH_INSTALLED_ADDON + id, false)) {
+        continue;
+      }
+
+      // Install the add-on
+      try {
+        addon._sourceBundle = profileLocation.installAddon({ id, source: entry, action: "copy" });
+        logger.debug("Installed distribution add-on " + id);
+
+        Services.prefs.setBoolPref(PREF_BRANCH_INSTALLED_ADDON + id, true)
+
+        // aManifests may contain a copy of a newly installed add-on's manifest
+        // and we'll have overwritten that so instead cache our install manifest
+        // which will later be put into the database in processFileChanges
+        if (!(KEY_APP_PROFILE in aManifests))
+          aManifests[KEY_APP_PROFILE] = {};
+        aManifests[KEY_APP_PROFILE][id] = addon;
+        changed = true;
+      }
+      catch (e) {
+        logger.error("Failed to install distribution add-on " + entry.path, e);
+      }
+    }
+
+    entries.close();
+
+    return changed;
+  },
+
+  /**
+   * Imports the xpinstall permissions from preferences into the permissions
+   * manager for the user to change later.
+   */
+  importPermissions: function() {
+    PermissionsUtils.importFromPrefs(PREF_XPI_PERMISSIONS_BRANCH,
+                                     XPI_PERMISSION);
+  },
+
+  getDependentAddons: function(aAddon) {
+    return Array.from(XPIDatabase.getAddons())
+                .filter(addon => addon.dependencies.includes(aAddon.id));
+  },
+
+  /**
+   * Checks for any changes that have occurred since the last time the
+   * application was launched.
+   *
+   * @param  aAppChanged
+   *         A tri-state value. Undefined means the current profile was created
+   *         for this session, true means the profile already existed but was
+   *         last used with an application with a different version number,
+   *         false means that the profile was last used by this version of the
+   *         application.
+   * @param  aOldAppVersion
+   *         The version of the application last run with this profile or null
+   *         if it is a new profile or the version is unknown
+   * @param  aOldPlatformVersion
+   *         The version of the platform last run with this profile or null
+   *         if it is a new profile or the version is unknown
+   * @return true if a change requiring a restart was detected
+   */
+  checkForChanges: function(aAppChanged, aOldAppVersion,
+                                                aOldPlatformVersion) {
+    logger.debug("checkForChanges");
+
+    // Keep track of whether and why we need to open and update the database at
+    // startup time.
+    let updateReasons = [];
+    if (aAppChanged) {
+      updateReasons.push("appChanged");
+    }
+
+    // Load the list of bootstrapped add-ons first so processFileChanges can
+    // modify it
+    // XXX eventually get rid of bootstrappedAddons
+    try {
+      this.bootstrappedAddons = JSON.parse(Preferences.get(PREF_BOOTSTRAP_ADDONS,
+                                           "{}"));
+    } catch (e) {
+      logger.warn("Error parsing enabled bootstrapped extensions cache", e);
+    }
+
+    // First install any new add-ons into the locations, if there are any
+    // changes then we must update the database with the information in the
+    // install locations
+    let manifests = {};
+    let updated = this.processPendingFileChanges(manifests);
+    if (updated) {
+      updateReasons.push("pendingFileChanges");
+    }
+
+    // This will be true if the previous session made changes that affect the
+    // active state of add-ons but didn't commit them properly (normally due
+    // to the application crashing)
+    let hasPendingChanges = Preferences.get(PREF_PENDING_OPERATIONS);
+    if (hasPendingChanges) {
+      updateReasons.push("hasPendingChanges");
+    }
+
+    // If the application has changed then check for new distribution add-ons
+    if (Preferences.get(PREF_INSTALL_DISTRO_ADDONS, true))
+    {
+      updated = this.installDistributionAddons(manifests, aAppChanged);
+      if (updated) {
+        updateReasons.push("installDistributionAddons");
+      }
+    }
+
+    // Telemetry probe added around getInstallState() to check perf
+    let telemetryCaptureTime = Cu.now();
+    let installChanged = XPIStates.getInstallState();
+    let telemetry = Services.telemetry;
+    telemetry.getHistogramById("CHECK_ADDONS_MODIFIED_MS").add(Math.round(Cu.now() - telemetryCaptureTime));
+    if (installChanged) {
+      updateReasons.push("directoryState");
+    }
+
+    let haveAnyAddons = (XPIStates.size > 0);
+
+    // If the schema appears to have changed then we should update the database
+    if (DB_SCHEMA != Preferences.get(PREF_DB_SCHEMA, 0)) {
+      // If we don't have any add-ons, just update the pref, since we don't need to
+      // write the database
+      if (!haveAnyAddons) {
+        logger.debug("Empty XPI database, setting schema version preference to " + DB_SCHEMA);
+        Services.prefs.setIntPref(PREF_DB_SCHEMA, DB_SCHEMA);
+      }
+      else {
+        updateReasons.push("schemaChanged");
+      }
+    }
+
+    // If the database doesn't exist and there are add-ons installed then we
+    // must update the database however if there are no add-ons then there is
+    // no need to update the database.
+    let dbFile = FileUtils.getFile(KEY_PROFILEDIR, [FILE_DATABASE], true);
+    if (!dbFile.exists() && haveAnyAddons) {
+      updateReasons.push("needNewDatabase");
+    }
+
+    // XXX This will go away when we fold bootstrappedAddons into XPIStates.
+    if (updateReasons.length == 0) {
+      let bootstrapDescriptors = new Set(Object.keys(this.bootstrappedAddons)
+        .map(b => this.bootstrappedAddons[b].descriptor));
+
+      for (let location of XPIStates.db.values()) {
+        for (let state of location.values()) {
+          bootstrapDescriptors.delete(state.descriptor);
+        }
+      }
+
+      if (bootstrapDescriptors.size > 0) {
+        logger.warn("Bootstrap state is invalid (missing add-ons: "
+            + Array.from(bootstrapDescriptors).join(", ") + ")");
+        updateReasons.push("missingBootstrapAddon");
+      }
+    }
+
+    // Catch and log any errors during the main startup
+    try {
+      let extensionListChanged = false;
+      // If the database needs to be updated then open it and then update it
+      // from the filesystem
+      if (updateReasons.length > 0) {
+        AddonManagerPrivate.recordSimpleMeasure("XPIDB_startup_load_reasons", updateReasons);
+        XPIDatabase.syncLoadDB(false);
+        try {
+          extensionListChanged = XPIDatabaseReconcile.processFileChanges(manifests,
+                                                                         aAppChanged,
+                                                                         aOldAppVersion,
+                                                                         aOldPlatformVersion,
+                                                                         updateReasons.includes("schemaChanged"));
+        }
+        catch (e) {
+          logger.error("Failed to process extension changes at startup", e);
+        }
+      }
+
+      if (aAppChanged) {
+        // When upgrading the app and using a custom skin make sure it is still
+        // compatible otherwise switch back the default
+        if (this.currentSkin != this.defaultSkin) {
+          let oldSkin = XPIDatabase.getVisibleAddonForInternalName(this.currentSkin);
+          if (!oldSkin || oldSkin.disabled)
+            this.enableDefaultTheme();
+        }
+
+        // When upgrading remove the old extensions cache to force older
+        // versions to rescan the entire list of extensions
+        let oldCache = FileUtils.getFile(KEY_PROFILEDIR, [FILE_OLD_CACHE], true);
+        try {
+          if (oldCache.exists())
+            oldCache.remove(true);
+        }
+        catch (e) {
+          logger.warn("Unable to remove old extension cache " + oldCache.path, e);
+        }
+      }
+
+      // If the application crashed before completing any pending operations then
+      // we should perform them now.
+      if (extensionListChanged || hasPendingChanges) {
+        logger.debug("Updating database with changes to installed add-ons");
+        XPIDatabase.updateActiveAddons();
+        Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS,
+                                   !XPIDatabase.writeAddonsList());
+        Services.prefs.setCharPref(PREF_BOOTSTRAP_ADDONS,
+                                   JSON.stringify(this.bootstrappedAddons));
+        return true;
+      }
+
+      logger.debug("No changes found");
+    }
+    catch (e) {
+      logger.error("Error during startup file checks", e);
+    }
+
+    // Check that the add-ons list still exists
+    let addonsList = FileUtils.getFile(KEY_PROFILEDIR, [FILE_XPI_ADDONS_LIST],
+                                       true);
+    // the addons list file should exist if and only if we have add-ons installed
+    if (addonsList.exists() != haveAnyAddons) {
+      logger.debug("Add-ons list is invalid, rebuilding");
+      XPIDatabase.writeAddonsList();
+    }
+
+    return false;
+  },
+
+  /**
+   * Called to test whether this provider supports installing a particular
+   * mimetype.
+   *
+   * @param  aMimetype
+   *         The mimetype to check for
+   * @return true if the mimetype is application/x-xpinstall
+   */
+  supportsMimetype: function(aMimetype) {
+    return aMimetype == "application/x-xpinstall";
+  },
+
+  /**
+   * Called to test whether installing XPI add-ons is enabled.
+   *
+   * @return true if installing is enabled
+   */
+  isInstallEnabled: function() {
+    // Default to enabled if the preference does not exist
+    return Preferences.get(PREF_XPI_ENABLED, true);
+  },
+
+  /**
+   * Called to test whether installing XPI add-ons by direct URL requests is
+   * whitelisted.
+   *
+   * @return true if installing by direct requests is whitelisted
+   */
+  isDirectRequestWhitelisted: function() {
+    // Default to whitelisted if the preference does not exist.
+    return Preferences.get(PREF_XPI_DIRECT_WHITELISTED, true);
+  },
+
+  /**
+   * Called to test whether installing XPI add-ons from file referrers is
+   * whitelisted.
+   *
+   * @return true if installing from file referrers is whitelisted
+   */
+  isFileRequestWhitelisted: function() {
+    // Default to whitelisted if the preference does not exist.
+    return Preferences.get(PREF_XPI_FILE_WHITELISTED, true);
+  },
+
+  /**
+   * Called to test whether installing XPI add-ons from a URI is allowed.
+   *
+   * @param  aInstallingPrincipal
+   *         The nsIPrincipal that initiated the install
+   * @return true if installing is allowed
+   */
+  isInstallAllowed: function(aInstallingPrincipal) {
+    if (!this.isInstallEnabled())
+      return false;
+
+    let uri = aInstallingPrincipal.URI;
+
+    // Direct requests without a referrer are either whitelisted or blocked.
+    if (!uri)
+      return this.isDirectRequestWhitelisted();
+
+    // Local referrers can be whitelisted.
+    if (this.isFileRequestWhitelisted() &&
+        (uri.schemeIs("chrome") || uri.schemeIs("file")))
+      return true;
+
+    this.importPermissions();
+
+    let permission = Services.perms.testPermissionFromPrincipal(aInstallingPrincipal, XPI_PERMISSION);
+    if (permission == Ci.nsIPermissionManager.DENY_ACTION)
+      return false;
+
+    let requireWhitelist = Preferences.get(PREF_XPI_WHITELIST_REQUIRED, true);
+    if (requireWhitelist && (permission != Ci.nsIPermissionManager.ALLOW_ACTION))
+      return false;
+
+    let requireSecureOrigin = Preferences.get(PREF_INSTALL_REQUIRESECUREORIGIN, true);
+    let safeSchemes = ["https", "chrome", "file"];
+    if (requireSecureOrigin && safeSchemes.indexOf(uri.scheme) == -1)
+      return false;
+
+    return true;
+  },
+
+  /**
+   * Called to get an AddonInstall to download and install an add-on from a URL.
+   *
+   * @param  aUrl
+   *         The URL to be installed
+   * @param  aHash
+   *         A hash for the install
+   * @param  aName
+   *         A name for the install
+   * @param  aIcons
+   *         Icon URLs for the install
+   * @param  aVersion
+   *         A version for the install
+   * @param  aBrowser
+   *         The browser performing the install
+   * @param  aCallback
+   *         A callback to pass the AddonInstall to
+   */
+  getInstallForURL: function(aUrl, aHash, aName, aIcons, aVersion, aBrowser,
+                             aCallback) {
+    createDownloadInstall(function(aInstall) {
+      aCallback(aInstall.wrapper);
+    }, aUrl, aHash, aName, aIcons, aVersion, aBrowser);
+  },
+
+  /**
+   * Called to get an AddonInstall to install an add-on from a local file.
+   *
+   * @param  aFile
+   *         The file to be installed
+   * @param  aCallback
+   *         A callback to pass the AddonInstall to
+   */
+  getInstallForFile: function(aFile, aCallback) {
+    createLocalInstall(aFile).then(install => {
+      aCallback(install ? install.wrapper : null);
+    });
+  },
+
+  /**
+   * Temporarily installs add-on from a local XPI file or directory.
+   * As this is intended for development, the signature is not checked and
+   * the add-on does not persist on application restart.
+   *
+   * @param aFile
+   *        An nsIFile for the unpacked add-on directory or XPI file.
+   *
+   * @return See installAddonFromLocation return value.
+   */
+  installTemporaryAddon: function(aFile) {
+    return this.installAddonFromLocation(aFile, TemporaryInstallLocation);
+  },
+
+  /**
+   * Permanently installs add-on from a local XPI file or directory.
+   * The signature is checked but the add-on persist on application restart.
+   *
+   * @param aFile
+   *        An nsIFile for the unpacked add-on directory or XPI file.
+   *
+   * @return See installAddonFromLocation return value.
+   */
+  installAddonFromSources: Task.async(function*(aFile) {
+    let location = XPIProvider.installLocationsByName[KEY_APP_PROFILE];
+    return this.installAddonFromLocation(aFile, location, "proxy");
+  }),
+
+  /**
+   * Installs add-on from a local XPI file or directory.
+   *
+   * @param aFile
+   *        An nsIFile for the unpacked add-on directory or XPI file.
+   * @param aInstallLocation
+   *        Define a custom install location object to use for the install.
+   * @param aInstallAction
+   *        Optional action mode to use when installing the addon
+   *        (see MutableDirectoryInstallLocation.installAddon)
+   *
+   * @return a Promise that resolves to an Addon object on success, or rejects
+   *         if the add-on is not a valid restartless add-on or if the
+   *         same ID is already installed.
+   */
+  installAddonFromLocation: Task.async(function*(aFile, aInstallLocation, aInstallAction) {
+    if (aFile.exists() && aFile.isFile()) {
+      flushJarCache(aFile);
+    }
+    let addon = yield loadManifestFromFile(aFile, aInstallLocation);
+
+    aInstallLocation.installAddon({ id: addon.id, source: aFile, action: aInstallAction });
+
+    if (addon.appDisabled) {
+      let message = `Add-on ${addon.id} is not compatible with application version.`;
+
+      let app = addon.matchingTargetApplication;
+      if (app) {
+        if (app.minVersion) {
+          message += ` add-on minVersion: ${app.minVersion}.`;
+        }
+        if (app.maxVersion) {
+          message += ` add-on maxVersion: ${app.maxVersion}.`;
+        }
+      }
+      throw new Error(message);
+    }
+
+    if (!addon.bootstrap) {
+      throw new Error("Only restartless (bootstrap) add-ons"
+                    + " can be installed from sources:", addon.id);
+    }
+    let installReason = BOOTSTRAP_REASONS.ADDON_INSTALL;
+    let oldAddon = yield new Promise(
+                   resolve => XPIDatabase.getVisibleAddonForID(addon.id, resolve));
+    if (oldAddon) {
+      if (!oldAddon.bootstrap) {
+        logger.warn("Non-restartless Add-on is already installed", addon.id);
+        throw new Error("Non-restartless add-on with ID "
+                        + oldAddon.id + " is already installed");
+      }
+      else {
+        logger.warn("Addon with ID " + oldAddon.id + " already installed,"
+                    + " older version will be disabled");
+
+        let existingAddonID = oldAddon.id;
+        let existingAddon = oldAddon._sourceBundle;
+
+        // We'll be replacing a currently active bootstrapped add-on so
+        // call its uninstall method
+        let newVersion = addon.version;
+        let oldVersion = oldAddon.version;
+        if (Services.vc.compare(newVersion, oldVersion) >= 0) {
+          installReason = BOOTSTRAP_REASONS.ADDON_UPGRADE;
+        } else {
+          installReason = BOOTSTRAP_REASONS.ADDON_DOWNGRADE;
+        }
+        let uninstallReason = installReason;
+
+        if (oldAddon.active) {
+          XPIProvider.callBootstrapMethod(oldAddon, existingAddon,
+                                          "shutdown", uninstallReason,
+                                          { newVersion });
+        }
+        this.callBootstrapMethod(oldAddon, existingAddon,
+                                 "uninstall", uninstallReason, { newVersion });
+        this.unloadBootstrapScope(existingAddonID);
+        flushChromeCaches();
+      }
+    }
+
+    let file = addon._sourceBundle;
+
+    XPIProvider._addURIMapping(addon.id, file);
+    XPIProvider.callBootstrapMethod(addon, file, "install", installReason);
+    addon.state = AddonManager.STATE_INSTALLED;
+    logger.debug("Install of temporary addon in " + aFile.path + " completed.");
+    addon.visible = true;
+    addon.enabled = true;
+    addon.active = true;
+
+    addon = XPIDatabase.addAddonMetadata(addon, file.persistentDescriptor);
+
+    XPIStates.addAddon(addon);
+    XPIDatabase.saveChanges();
+    XPIStates.save();
+
+    AddonManagerPrivate.callAddonListeners("onInstalling", addon.wrapper,
+                                           false);
+    XPIProvider.callBootstrapMethod(addon, file, "startup",
+                                    BOOTSTRAP_REASONS.ADDON_ENABLE);
+    AddonManagerPrivate.callInstallListeners("onExternalInstall",
+                                             null, addon.wrapper,
+                                             oldAddon ? oldAddon.wrapper : null,
+                                             false);
+    AddonManagerPrivate.callAddonListeners("onInstalled", addon.wrapper);
+
+    return addon.wrapper;
+  }),
+
+  /**
+   * Returns an Addon corresponding to an instance ID.
+   * @param aInstanceID
+   *        An Addon Instance ID
+   * @return {Promise}
+   * @resolves The found Addon or null if no such add-on exists.
+   * @rejects  Never
+   * @throws if the aInstanceID argument is not specified
+   */
+   getAddonByInstanceID: function(aInstanceID) {
+     if (!aInstanceID || typeof aInstanceID != "symbol")
+       throw Components.Exception("aInstanceID must be a Symbol()",
+                                  Cr.NS_ERROR_INVALID_ARG);
+
+     for (let [id, val] of this.activeAddons) {
+       if (aInstanceID == val.instanceID) {
+         if (val.safeWrapper) {
+           return Promise.resolve(val.safeWrapper);
+         }
+
+         return new Promise(resolve => {
+           this.getAddonByID(id, function(addon) {
+             val.safeWrapper = new PrivateWrapper(addon);
+             resolve(val.safeWrapper);
+           });
+         });
+       }
+     }
+
+     return Promise.resolve(null);
+   },
+
+  /**
+   * Removes an AddonInstall from the list of active installs.
+   *
+   * @param  install
+   *         The AddonInstall to remove
+   */
+  removeActiveInstall: function(aInstall) {
+    this.installs.delete(aInstall);
+  },
+
+  /**
+   * Called to get an Addon with a particular ID.
+   *
+   * @param  aId
+   *         The ID of the add-on to retrieve
+   * @param  aCallback
+   *         A callback to pass the Addon to
+   */
+  getAddonByID: function(aId, aCallback) {
+    XPIDatabase.getVisibleAddonForID (aId, function(aAddon) {
+      aCallback(aAddon ? aAddon.wrapper : null);
+    });
+  },
+
+  /**
+   * Called to get Addons of a particular type.
+   *
+   * @param  aTypes
+   *         An array of types to fetch. Can be null to get all types.
+   * @param  aCallback
+   *         A callback to pass an array of Addons to
+   */
+  getAddonsByTypes: function(aTypes, aCallback) {
+    let typesToGet = getAllAliasesForTypes(aTypes);
+
+    XPIDatabase.getVisibleAddons(typesToGet, function(aAddons) {
+      aCallback(aAddons.map(a => a.wrapper));
+    });
+  },
+
+  /**
+   * Obtain an Addon having the specified Sync GUID.
+   *
+   * @param  aGUID
+   *         String GUID of add-on to retrieve
+   * @param  aCallback
+   *         A callback to pass the Addon to. Receives null if not found.
+   */
+  getAddonBySyncGUID: function(aGUID, aCallback) {
+    XPIDatabase.getAddonBySyncGUID(aGUID, function(aAddon) {
+      aCallback(aAddon ? aAddon.wrapper : null);
+    });
+  },
+
+  /**
+   * Called to get Addons that have pending operations.
+   *
+   * @param  aTypes
+   *         An array of types to fetch. Can be null to get all types
+   * @param  aCallback
+   *         A callback to pass an array of Addons to
+   */
+  getAddonsWithOperationsByTypes: function(aTypes, aCallback) {
+    let typesToGet = getAllAliasesForTypes(aTypes);
+
+    XPIDatabase.getVisibleAddonsWithPendingOperations(typesToGet, function(aAddons) {
+      let results = aAddons.map(a => a.wrapper);
+      for (let install of XPIProvider.installs) {
+        if (install.state == AddonManager.STATE_INSTALLED &&
+            !(install.addon.inDatabase))
+          results.push(install.addon.wrapper);
+      }
+      aCallback(results);
+    });
+  },
+
+  /**
+   * Called to get the current AddonInstalls, optionally limiting to a list of
+   * types.
+   *
+   * @param  aTypes
+   *         An array of types or null to get all types
+   * @param  aCallback
+   *         A callback to pass the array of AddonInstalls to
+   */
+  getInstallsByTypes: function(aTypes, aCallback) {
+    let results = [...this.installs];
+    if (aTypes) {
+      results = results.filter(install => {
+        return aTypes.includes(getExternalType(install.type));
+      });
+    }
+
+    aCallback(results.map(install => install.wrapper));
+  },
+
+  /**
+   * Synchronously map a URI to the corresponding Addon ID.
+   *
+   * Mappable URIs are limited to in-application resources belonging to the
+   * add-on, such as Javascript compartments, XUL windows, XBL bindings, etc.
+   * but do not include URIs from meta data, such as the add-on homepage.
+   *
+   * @param  aURI
+   *         nsIURI to map or null
+   * @return string containing the Addon ID
+   * @see    AddonManager.mapURIToAddonID
+   * @see    amIAddonManager.mapURIToAddonID
+   */
+  mapURIToAddonID: function(aURI) {
+    // Returns `null` instead of empty string if the URI can't be mapped.
+    return AddonPathService.mapURIToAddonId(aURI) || null;
+  },
+
+  /**
+   * Called when a new add-on has been enabled when only one add-on of that type
+   * can be enabled.
+   *
+   * @param  aId
+   *         The ID of the newly enabled add-on
+   * @param  aType
+   *         The type of the newly enabled add-on
+   * @param  aPendingRestart
+   *         true if the newly enabled add-on will only become enabled after a
+   *         restart
+   */
+  addonChanged: function(aId, aType, aPendingRestart) {
+    // We only care about themes in this provider
+    if (aType != "theme")
+      return;
+
+    if (!aId) {
+      // Fallback to the default theme when no theme was enabled
+      this.enableDefaultTheme();
+      return;
+    }
+
+    // Look for the previously enabled theme and find the internalName of the
+    // currently selected theme
+    let previousTheme = null;
+    let newSkin = this.defaultSkin;
+    let addons = XPIDatabase.getAddonsByType("theme");
+    for (let theme of addons) {
+      if (!theme.visible)
+        return;
+      if (theme.id == aId)
+        newSkin = theme.internalName;
+      else if (theme.userDisabled == false && !theme.pendingUninstall)
+        previousTheme = theme;
+    }
+
+    if (aPendingRestart) {
+      Services.prefs.setBoolPref(PREF_DSS_SWITCHPENDING, true);
+      Services.prefs.setCharPref(PREF_DSS_SKIN_TO_SELECT, newSkin);
+    }
+    else if (newSkin == this.currentSkin) {
+      try {
+        Services.prefs.clearUserPref(PREF_DSS_SWITCHPENDING);
+      }
+      catch (e) { }
+      try {
+        Services.prefs.clearUserPref(PREF_DSS_SKIN_TO_SELECT);
+      }
+      catch (e) { }
+    }
+    else {
+      Services.prefs.setCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN, newSkin);
+      this.currentSkin = newSkin;
+    }
+    this.selectedSkin = newSkin;
+
+    // Flush the preferences to disk so they don't get out of sync with the
+    // database
+    Services.prefs.savePrefFile(null);
+
+    // Mark the previous theme as disabled. This won't cause recursion since
+    // only enabled calls notifyAddonChanged.
+    if (previousTheme)
+      this.updateAddonDisabledState(previousTheme, true);
+  },
+
+  /**
+   * Update the appDisabled property for all add-ons.
+   */
+  updateAddonAppDisabledStates: function() {
+    let addons = XPIDatabase.getAddons();
+    for (let addon of addons) {
+      this.updateAddonDisabledState(addon);
+    }
+  },
+
+  /**
+   * Update the repositoryAddon property for all add-ons.
+   *
+   * @param  aCallback
+   *         Function to call when operation is complete.
+   */
+  updateAddonRepositoryData: function(aCallback) {
+    XPIDatabase.getVisibleAddons(null, aAddons => {
+      let pending = aAddons.length;
+      logger.debug("updateAddonRepositoryData found " + pending + " visible add-ons");
+      if (pending == 0) {
+        aCallback();
+        return;
+      }
+
+      function notifyComplete() {
+        if (--pending == 0)
+          aCallback();
+      }
+
+      for (let addon of aAddons) {
+        AddonRepository.getCachedAddonByID(addon.id, aRepoAddon => {
+          if (aRepoAddon) {
+            logger.debug("updateAddonRepositoryData got info for " + addon.id);
+            addon._repositoryAddon = aRepoAddon;
+            addon.compatibilityOverrides = aRepoAddon.compatibilityOverrides;
+            this.updateAddonDisabledState(addon);
+          }
+
+          notifyComplete();
+        });
+      }
+    });
+  },
+
+  /**
+   * When the previously selected theme is removed this method will be called
+   * to enable the default theme.
+   */
+  enableDefaultTheme: function() {
+    logger.debug("Activating default theme");
+    let addon = XPIDatabase.getVisibleAddonForInternalName(this.defaultSkin);
+    if (addon) {
+      if (addon.userDisabled) {
+        this.updateAddonDisabledState(addon, false);
+      }
+      else if (!this.extensionsActive) {
+        // During startup we may end up trying to enable the default theme when
+        // the database thinks it is already enabled (see f.e. bug 638847). In
+        // this case just force the theme preferences to be correct
+        Services.prefs.setCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN,
+                                   addon.internalName);
+        this.currentSkin = this.selectedSkin = addon.internalName;
+        Preferences.reset(PREF_DSS_SKIN_TO_SELECT);
+        Preferences.reset(PREF_DSS_SWITCHPENDING);
+      }
+      else {
+        logger.warn("Attempting to activate an already active default theme");
+      }
+    }
+    else {
+      logger.warn("Unable to activate the default theme");
+    }
+  },
+
+  onDebugConnectionChange: function(aEvent, aWhat, aConnection) {
+    if (aWhat != "opened")
+      return;
+
+    for (let [id, val] of this.activeAddons) {
+      aConnection.setAddonOptions(
+        id, { global: val.debugGlobal || val.bootstrapScope });
+    }
+  },
+
+  /**
+   * Notified when a preference we're interested in has changed.
+   *
+   * @see nsIObserver
+   */
+  observe: function(aSubject, aTopic, aData) {
+    if (aTopic == NOTIFICATION_FLUSH_PERMISSIONS) {
+      if (!aData || aData == XPI_PERMISSION) {
+        this.importPermissions();
+      }
+      return;
+    }
+    else if (aTopic == NOTIFICATION_TOOLBOXPROCESS_LOADED) {
+      Services.obs.removeObserver(this, NOTIFICATION_TOOLBOXPROCESS_LOADED, false);
+      this._toolboxProcessLoaded = true;
+      BrowserToolboxProcess.on("connectionchange",
+                               this.onDebugConnectionChange.bind(this));
+    }
+
+    if (aTopic == "nsPref:changed") {
+      switch (aData) {
+      case PREF_EM_MIN_COMPAT_APP_VERSION:
+        this.minCompatibleAppVersion = Preferences.get(PREF_EM_MIN_COMPAT_APP_VERSION,
+                                                       null);
+        this.updateAddonAppDisabledStates();
+        break;
+      case PREF_EM_MIN_COMPAT_PLATFORM_VERSION:
+        this.minCompatiblePlatformVersion = Preferences.get(PREF_EM_MIN_COMPAT_PLATFORM_VERSION,
+                                                            null);
+        this.updateAddonAppDisabledStates();
+        break;
+      case PREF_XPI_SIGNATURES_REQUIRED:
+        this.updateAddonAppDisabledStates();
+        break;
+
+      case PREF_E10S_ADDON_BLOCKLIST:
+      case PREF_E10S_ADDON_POLICY:
+        XPIDatabase.updateAddonsBlockingE10s();
+        break;
+      }
+    }
+  },
+
+  /**
+   * Determine if an add-on should be blocking e10s if enabled.
+   *
+   * @param  aAddon
+   *         The add-on to test
+   * @return true if enabling the add-on should block e10s
+   */
+  isBlockingE10s: function(aAddon) {
+    if (aAddon.type != "extension" &&
+        aAddon.type != "webextension" &&
+        aAddon.type != "theme")
+      return false;
+
+    // The hotfix is exempt
+    let hotfixID = Preferences.get(PREF_EM_HOTFIX_ID, undefined);
+    if (hotfixID && hotfixID == aAddon.id)
+      return false;
+
+    // The default theme is exempt
+    if (aAddon.type == "theme" &&
+        aAddon.internalName == XPIProvider.defaultSkin)
+      return false;
+
+    // System add-ons are exempt
+    let locName = aAddon._installLocation ? aAddon._installLocation.name
+                                          : undefined;
+    if (locName == KEY_APP_SYSTEM_DEFAULTS ||
+        locName == KEY_APP_SYSTEM_ADDONS)
+      return false;
+
+    if (isAddonPartOfE10SRollout(aAddon)) {
+      Preferences.set(PREF_E10S_HAS_NONEXEMPT_ADDON, true);
+      return false;
+    }
+
+    logger.debug("Add-on " + aAddon.id + " blocks e10s rollout.");
+    return true;
+  },
+
+  /**
+   * In some cases having add-ons active blocks e10s but turning off e10s
+   * requires a restart so some add-ons that are normally restartless will
+   * require a restart to install or enable.
+   *
+   * @param  aAddon
+   *         The add-on to test
+   * @return true if enabling the add-on requires a restart
+   */
+  e10sBlocksEnabling: function(aAddon) {
+    // If the preference isn't set then don't block anything
+    if (!Preferences.get(PREF_E10S_BLOCK_ENABLE, false))
+      return false;
+
+    // If e10s isn't active then don't block anything
+    if (!Services.appinfo.browserTabsRemoteAutostart)
+      return false;
+
+    return this.isBlockingE10s(aAddon);
+  },
+
+  /**
+   * Tests whether enabling an add-on will require a restart.
+   *
+   * @param  aAddon
+   *         The add-on to test
+   * @return true if the operation requires a restart
+   */
+  enableRequiresRestart: function(aAddon) {
+    // If the platform couldn't have activated extensions then we can make
+    // changes without any restart.
+    if (!this.extensionsActive)
+      return false;
+
+    // If the application is in safe mode then any change can be made without
+    // restarting
+    if (Services.appinfo.inSafeMode)
+      return false;
+
+    // Anything that is active is already enabled
+    if (aAddon.active)
+      return false;
+
+    if (aAddon.type == "theme") {
+      // If dynamic theme switching is enabled then switching themes does not
+      // require a restart
+      if (Preferences.get(PREF_EM_DSS_ENABLED))
+        return false;
+
+      // If the theme is already the theme in use then no restart is necessary.
+      // This covers the case where the default theme is in use but a
+      // lightweight theme is considered active.
+      return aAddon.internalName != this.currentSkin;
+    }
+
+    if (this.e10sBlocksEnabling(aAddon))
+      return true;
+
+    return !aAddon.bootstrap;
+  },
+
+  /**
+   * Tests whether disabling an add-on will require a restart.
+   *
+   * @param  aAddon
+   *         The add-on to test
+   * @return true if the operation requires a restart
+   */
+  disableRequiresRestart: function(aAddon) {
+    // If the platform couldn't have activated up extensions then we can make
+    // changes without any restart.
+    if (!this.extensionsActive)
+      return false;
+
+    // If the application is in safe mode then any change can be made without
+    // restarting
+    if (Services.appinfo.inSafeMode)
+      return false;
+
+    // Anything that isn't active is already disabled
+    if (!aAddon.active)
+      return false;
+
+    if (aAddon.type == "theme") {
+      // If dynamic theme switching is enabled then switching themes does not
+      // require a restart
+      if (Preferences.get(PREF_EM_DSS_ENABLED))
+        return false;
+
+      // Non-default themes always require a restart to disable since it will
+      // be switching from one theme to another or to the default theme and a
+      // lightweight theme.
+      if (aAddon.internalName != this.defaultSkin)
+        return true;
+
+      // The default theme requires a restart to disable if we are in the
+      // process of switching to a different theme. Note that this makes the
+      // disabled flag of operationsRequiringRestart incorrect for the default
+      // theme (it will be false most of the time). Bug 520124 would be required
+      // to fix it. For the UI this isn't a problem since we never try to
+      // disable or uninstall the default theme.
+      return this.selectedSkin != this.currentSkin;
+    }
+
+    return !aAddon.bootstrap;
+  },
+
+  /**
+   * Tests whether installing an add-on will require a restart.
+   *
+   * @param  aAddon
+   *         The add-on to test
+   * @return true if the operation requires a restart
+   */
+  installRequiresRestart: function(aAddon) {
+    // If the platform couldn't have activated up extensions then we can make
+    // changes without any restart.
+    if (!this.extensionsActive)
+      return false;
+
+    // If the application is in safe mode then any change can be made without
+    // restarting
+    if (Services.appinfo.inSafeMode)
+      return false;
+
+    // Add-ons that are already installed don't require a restart to install.
+    // This wouldn't normally be called for an already installed add-on (except
+    // for forming the operationsRequiringRestart flags) so is really here as
+    // a safety measure.
+    if (aAddon.inDatabase)
+      return false;
+
+    // If we have an AddonInstall for this add-on then we can see if there is
+    // an existing installed add-on with the same ID
+    if ("_install" in aAddon && aAddon._install) {
+      // If there is an existing installed add-on and uninstalling it would
+      // require a restart then installing the update will also require a
+      // restart
+      let existingAddon = aAddon._install.existingAddon;
+      if (existingAddon && this.uninstallRequiresRestart(existingAddon))
+        return true;
+    }
+
+    // If the add-on is not going to be active after installation then it
+    // doesn't require a restart to install.
+    if (aAddon.disabled)
+      return false;
+
+    if (this.e10sBlocksEnabling(aAddon))
+      return true;
+
+    // Themes will require a restart (even if dynamic switching is enabled due
+    // to some caching issues) and non-bootstrapped add-ons will require a
+    // restart
+    return aAddon.type == "theme" || !aAddon.bootstrap;
+  },
+
+  /**
+   * Tests whether uninstalling an add-on will require a restart.
+   *
+   * @param  aAddon
+   *         The add-on to test
+   * @return true if the operation requires a restart
+   */
+  uninstallRequiresRestart: function(aAddon) {
+    // If the platform couldn't have activated up extensions then we can make
+    // changes without any restart.
+    if (!this.extensionsActive)
+      return false;
+
+    // If the application is in safe mode then any change can be made without
+    // restarting
+    if (Services.appinfo.inSafeMode)
+      return false;
+
+    // If the add-on can be disabled without a restart then it can also be
+    // uninstalled without a restart
+    return this.disableRequiresRestart(aAddon);
+  },
+
+  /**
+   * Loads a bootstrapped add-on's bootstrap.js into a sandbox and the reason
+   * values as constants in the scope. This will also add information about the
+   * add-on to the bootstrappedAddons dictionary and notify the crash reporter
+   * that new add-ons have been loaded.
+   *
+   * @param  aId
+   *         The add-on's ID
+   * @param  aFile
+   *         The nsIFile for the add-on
+   * @param  aVersion
+   *         The add-on's version
+   * @param  aType
+   *         The type for the add-on
+   * @param  aMultiprocessCompatible
+   *         Boolean indicating whether the add-on is compatible with electrolysis.
+   * @param  aRunInSafeMode
+   *         Boolean indicating whether the add-on can run in safe mode.
+   * @param  aDependencies
+   *         An array of add-on IDs on which this add-on depends.
+   * @param  hasEmbeddedWebExtension
+   *         Boolean indicating whether the add-on has an embedded webextension.
+   * @return a JavaScript scope
+   */
+  loadBootstrapScope: function(aId, aFile, aVersion, aType,
+                               aMultiprocessCompatible, aRunInSafeMode,
+                               aDependencies, hasEmbeddedWebExtension) {
+    // Mark the add-on as active for the crash reporter before loading
+    this.bootstrappedAddons[aId] = {
+      version: aVersion,
+      type: aType,
+      descriptor: aFile.persistentDescriptor,
+      multiprocessCompatible: aMultiprocessCompatible,
+      runInSafeMode: aRunInSafeMode,
+      dependencies: aDependencies,
+      hasEmbeddedWebExtension,
+    };
+    this.persistBootstrappedAddons();
+    this.addAddonsToCrashReporter();
+
+    this.activeAddons.set(aId, {
+      debugGlobal: null,
+      safeWrapper: null,
+      bootstrapScope: null,
+      // a Symbol passed to this add-on, which it can use to identify itself
+      instanceID: Symbol(aId),
+    });
+    let activeAddon = this.activeAddons.get(aId);
+
+    // Locales only contain chrome and can't have bootstrap scripts
+    if (aType == "locale") {
+      return;
+    }
+
+    logger.debug("Loading bootstrap scope from " + aFile.path);
+
+    let principal = Cc["@mozilla.org/systemprincipal;1"].
+                    createInstance(Ci.nsIPrincipal);
+    if (!aMultiprocessCompatible && Preferences.get(PREF_INTERPOSITION_ENABLED, false)) {
+      let interposition = Cc["@mozilla.org/addons/multiprocess-shims;1"].
+        getService(Ci.nsIAddonInterposition);
+      Cu.setAddonInterposition(aId, interposition);
+      Cu.allowCPOWsInAddon(aId, true);
+    }
+
+    if (!aFile.exists()) {
+      activeAddon.bootstrapScope =
+        new Cu.Sandbox(principal, { sandboxName: aFile.path,
+                                    wantGlobalProperties: ["indexedDB"],
+                                    addonId: aId,
+                                    metadata: { addonID: aId } });
+      logger.error("Attempted to load bootstrap scope from missing directory " + aFile.path);
+      return;
+    }
+
+    let uri = getURIForResourceInFile(aFile, "bootstrap.js").spec;
+    if (aType == "dictionary")
+      uri = "resource://gre/modules/addons/SpellCheckDictionaryBootstrap.js"
+    else if (aType == "webextension")
+      uri = "resource://gre/modules/addons/WebExtensionBootstrap.js"
+    else if (aType == "apiextension")
+      uri = "resource://gre/modules/addons/APIExtensionBootstrap.js"
+
+    activeAddon.bootstrapScope =
+      new Cu.Sandbox(principal, { sandboxName: uri,
+                                  wantGlobalProperties: ["indexedDB"],
+                                  addonId: aId,
+                                  metadata: { addonID: aId, URI: uri } });
+
+    let loader = Cc["@mozilla.org/moz/jssubscript-loader;1"].
+                 createInstance(Ci.mozIJSSubScriptLoader);
+
+    try {
+      // Copy the reason values from the global object into the bootstrap scope.
+      for (let name in BOOTSTRAP_REASONS)
+        activeAddon.bootstrapScope[name] = BOOTSTRAP_REASONS[name];
+
+      // Add other stuff that extensions want.
+      const features = [ "Worker", "ChromeWorker" ];
+
+      for (let feature of features)
+        activeAddon.bootstrapScope[feature] = gGlobalScope[feature];
+
+      // Define a console for the add-on
+      activeAddon.bootstrapScope["console"] = new ConsoleAPI(
+        { consoleID: "addon/" + aId });
+
+      // As we don't want our caller to control the JS version used for the
+      // bootstrap file, we run loadSubScript within the context of the
+      // sandbox with the latest JS version set explicitly.
+      activeAddon.bootstrapScope.__SCRIPT_URI_SPEC__ = uri;
+      Components.utils.evalInSandbox(
+        "Components.classes['@mozilla.org/moz/jssubscript-loader;1'] \
+                   .createInstance(Components.interfaces.mozIJSSubScriptLoader) \
+                   .loadSubScript(__SCRIPT_URI_SPEC__);",
+                   activeAddon.bootstrapScope, "ECMAv5");
+    }
+    catch (e) {
+      logger.warn("Error loading bootstrap.js for " + aId, e);
+    }
+
+    // Only access BrowserToolboxProcess if ToolboxProcess.jsm has been
+    // initialized as otherwise, when it will be initialized, all addons'
+    // globals will be added anyways
+    if (this._toolboxProcessLoaded) {
+      BrowserToolboxProcess.setAddonOptions(aId,
+        { global: activeAddon.bootstrapScope });
+    }
+  },
+
+  /**
+   * Unloads a bootstrap scope by dropping all references to it and then
+   * updating the list of active add-ons with the crash reporter.
+   *
+   * @param  aId
+   *         The add-on's ID
+   */
+  unloadBootstrapScope: function(aId) {
+    // In case the add-on was not multiprocess-compatible, deregister
+    // any interpositions for it.
+    Cu.setAddonInterposition(aId, null);
+    Cu.allowCPOWsInAddon(aId, false);
+
+    this.activeAddons.delete(aId);
+    delete this.bootstrappedAddons[aId];
+    this.persistBootstrappedAddons();
+    this.addAddonsToCrashReporter();
+
+    // Only access BrowserToolboxProcess if ToolboxProcess.jsm has been
+    // initialized as otherwise, there won't be any addon globals added to it
+    if (this._toolboxProcessLoaded) {
+      BrowserToolboxProcess.setAddonOptions(aId, { global: null });
+    }
+  },
+
+  /**
+   * Calls a bootstrap method for an add-on.
+   *
+   * @param  aAddon
+   *         An object representing the add-on, with `id`, `type` and `version`
+   * @param  aFile
+   *         The nsIFile for the add-on
+   * @param  aMethod
+   *         The name of the bootstrap method to call
+   * @param  aReason
+   *         The reason flag to pass to the bootstrap's startup method
+   * @param  aExtraParams
+   *         An object of additional key/value pairs to pass to the method in
+   *         the params argument
+   */
+  callBootstrapMethod: function(aAddon, aFile, aMethod, aReason, aExtraParams) {
+    if (!aAddon.id || !aAddon.version || !aAddon.type) {
+      throw new Error("aAddon must include an id, version, and type");
+    }
+
+    // Only run in safe mode if allowed to
+    let runInSafeMode = "runInSafeMode" in aAddon ? aAddon.runInSafeMode : canRunInSafeMode(aAddon);
+    if (Services.appinfo.inSafeMode && !runInSafeMode)
+      return;
+
+    let timeStart = new Date();
+    if (CHROME_TYPES.has(aAddon.type) && aMethod == "startup") {
+      logger.debug("Registering manifest for " + aFile.path);
+      Components.manager.addBootstrappedManifestLocation(aFile);
+    }
+
+    try {
+      // Load the scope if it hasn't already been loaded
+      let activeAddon = this.activeAddons.get(aAddon.id);
+      if (!activeAddon) {
+        this.loadBootstrapScope(aAddon.id, aFile, aAddon.version, aAddon.type,
+                                aAddon.multiprocessCompatible || false,
+                                runInSafeMode, aAddon.dependencies,
+                                aAddon.hasEmbeddedWebExtension || false);
+        activeAddon = this.activeAddons.get(aAddon.id);
+      }
+
+      if (aMethod == "startup" || aMethod == "shutdown") {
+        if (!aExtraParams) {
+          aExtraParams = {};
+        }
+        aExtraParams["instanceID"] = this.activeAddons.get(aAddon.id).instanceID;
+      }
+
+      // Nothing to call for locales
+      if (aAddon.type == "locale")
+        return;
+
+      let method = undefined;
+      try {
+        method = Components.utils.evalInSandbox(`${aMethod};`,
+          activeAddon.bootstrapScope, "ECMAv5");
+      }
+      catch (e) {
+        // An exception will be caught if the expected method is not defined.
+        // That will be logged below.
+      }
+
+      if (!method) {
+        logger.warn("Add-on " + aAddon.id + " is missing bootstrap method " + aMethod);
+        return;
+      }
+
+      // Extensions are automatically deinitialized in the correct order at shutdown.
+      if (aMethod == "shutdown" && aReason != BOOTSTRAP_REASONS.APP_SHUTDOWN) {
+        activeAddon.disable = true;
+        for (let addon of this.getDependentAddons(aAddon)) {
+          if (addon.active)
+            this.updateAddonDisabledState(addon);
+        }
+      }
+
+      let params = {
+        id: aAddon.id,
+        version: aAddon.version,
+        installPath: aFile.clone(),
+        resourceURI: getURIForResourceInFile(aFile, "")
+      };
+
+      if (aExtraParams) {
+        for (let key in aExtraParams) {
+          params[key] = aExtraParams[key];
+        }
+      }
+
+      if (aAddon.hasEmbeddedWebExtension) {
+        if (aMethod == "startup") {
+          const webExtension = LegacyExtensionsUtils.getEmbeddedExtensionFor(params);
+          params.webExtension = {
+            startup: () => webExtension.startup(),
+          };
+        } else if (aMethod == "shutdown") {
+          LegacyExtensionsUtils.getEmbeddedExtensionFor(params).shutdown();
+        }
+      }
+
+      logger.debug("Calling bootstrap method " + aMethod + " on " + aAddon.id + " version " +
+                   aAddon.version);
+      try {
+        method(params, aReason);
+      }
+      catch (e) {
+        logger.warn("Exception running bootstrap method " + aMethod + " on " + aAddon.id, e);
+      }
+    }
+    finally {
+      // Extensions are automatically initialized in the correct order at startup.
+      if (aMethod == "startup" && aReason != BOOTSTRAP_REASONS.APP_STARTUP) {
+        for (let addon of this.getDependentAddons(aAddon))
+          this.updateAddonDisabledState(addon);
+      }
+
+      if (CHROME_TYPES.has(aAddon.type) && aMethod == "shutdown" && aReason != BOOTSTRAP_REASONS.APP_SHUTDOWN) {
+        logger.debug("Removing manifest for " + aFile.path);
+        Components.manager.removeBootstrappedManifestLocation(aFile);
+
+        let manifest = getURIForResourceInFile(aFile, "chrome.manifest");
+        for (let line of ChromeManifestParser.parseSync(manifest)) {
+          if (line.type == "resource") {
+            ResProtocolHandler.setSubstitution(line.args[0], null);
+          }
+        }
+      }
+      this.setTelemetry(aAddon.id, aMethod + "_MS", new Date() - timeStart);
+    }
+  },
+
+  /**
+   * Updates the disabled state for an add-on. Its appDisabled property will be
+   * calculated and if the add-on is changed the database will be saved and
+   * appropriate notifications will be sent out to the registered AddonListeners.
+   *
+   * @param  aAddon
+   *         The DBAddonInternal to update
+   * @param  aUserDisabled
+   *         Value for the userDisabled property. If undefined the value will
+   *         not change
+   * @param  aSoftDisabled
+   *         Value for the softDisabled property. If undefined the value will
+   *         not change. If true this will force userDisabled to be true
+   * @return a tri-state indicating the action taken for the add-on:
+   *           - undefined: The add-on did not change state
+   *           - true: The add-on because disabled
+   *           - false: The add-on became enabled
+   * @throws if addon is not a DBAddonInternal
+   */
+  updateAddonDisabledState: function(aAddon, aUserDisabled, aSoftDisabled) {
+    if (!(aAddon.inDatabase))
+      throw new Error("Can only update addon states for installed addons.");
+    if (aUserDisabled !== undefined && aSoftDisabled !== undefined) {
+      throw new Error("Cannot change userDisabled and softDisabled at the " +
+                      "same time");
+    }
+
+    if (aUserDisabled === undefined) {
+      aUserDisabled = aAddon.userDisabled;
+    }
+    else if (!aUserDisabled) {
+      // If enabling the add-on then remove softDisabled
+      aSoftDisabled = false;
+    }
+
+    // If not changing softDisabled or the add-on is already userDisabled then
+    // use the existing value for softDisabled
+    if (aSoftDisabled === undefined || aUserDisabled)
+      aSoftDisabled = aAddon.softDisabled;
+
+    let appDisabled = !isUsableAddon(aAddon);
+    // No change means nothing to do here
+    if (aAddon.userDisabled == aUserDisabled &&
+        aAddon.appDisabled == appDisabled &&
+        aAddon.softDisabled == aSoftDisabled)
+      return undefined;
+
+    let wasDisabled = aAddon.disabled;
+    let isDisabled = aUserDisabled || aSoftDisabled || appDisabled;
+
+    // If appDisabled changes but addon.disabled doesn't,
+    // no onDisabling/onEnabling is sent - so send a onPropertyChanged.
+    let appDisabledChanged = aAddon.appDisabled != appDisabled;
+
+    // Update the properties in the database.
+    XPIDatabase.setAddonProperties(aAddon, {
+      userDisabled: aUserDisabled,
+      appDisabled: appDisabled,
+      softDisabled: aSoftDisabled
+    });
+
+    let wrapper = aAddon.wrapper;
+
+    if (appDisabledChanged) {
+      AddonManagerPrivate.callAddonListeners("onPropertyChanged",
+                                             wrapper,
+                                             ["appDisabled"]);
+    }
+
+    // If the add-on is not visible or the add-on is not changing state then
+    // there is no need to do anything else
+    if (!aAddon.visible || (wasDisabled == isDisabled))
+      return undefined;
+
+    // Flag that active states in the database need to be updated on shutdown
+    Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, true);
+
+    // Have we just gone back to the current state?
+    if (isDisabled != aAddon.active) {
+      AddonManagerPrivate.callAddonListeners("onOperationCancelled", wrapper);
+    }
+    else {
+      if (isDisabled) {
+        var needsRestart = this.disableRequiresRestart(aAddon);
+        AddonManagerPrivate.callAddonListeners("onDisabling", wrapper,
+                                               needsRestart);
+      }
+      else {
+        needsRestart = this.enableRequiresRestart(aAddon);
+        AddonManagerPrivate.callAddonListeners("onEnabling", wrapper,
+                                               needsRestart);
+      }
+
+      if (!needsRestart) {
+        XPIDatabase.updateAddonActive(aAddon, !isDisabled);
+
+        if (isDisabled) {
+          if (aAddon.bootstrap) {
+            this.callBootstrapMethod(aAddon, aAddon._sourceBundle, "shutdown",
+                                     BOOTSTRAP_REASONS.ADDON_DISABLE);
+            this.unloadBootstrapScope(aAddon.id);
+          }
+          AddonManagerPrivate.callAddonListeners("onDisabled", wrapper);
+        }
+        else {
+          if (aAddon.bootstrap) {
+            this.callBootstrapMethod(aAddon, aAddon._sourceBundle, "startup",
+                                     BOOTSTRAP_REASONS.ADDON_ENABLE);
+          }
+          AddonManagerPrivate.callAddonListeners("onEnabled", wrapper);
+        }
+      }
+      else if (aAddon.bootstrap) {
+        // Something blocked the restartless add-on from enabling or disabling
+        // make sure it happens on the next startup
+        if (isDisabled) {
+          this.bootstrappedAddons[aAddon.id].disable = true;
+        }
+        else {
+          this.bootstrappedAddons[aAddon.id] = {
+            version: aAddon.version,
+            type: aAddon.type,
+            descriptor: aAddon._sourceBundle.persistentDescriptor,
+            multiprocessCompatible: aAddon.multiprocessCompatible,
+            runInSafeMode: canRunInSafeMode(aAddon),
+            dependencies: aAddon.dependencies,
+            hasEmbeddedWebExtension: aAddon.hasEmbeddedWebExtension,
+          };
+          this.persistBootstrappedAddons();
+        }
+      }
+    }
+
+    // Sync with XPIStates.
+    let xpiState = XPIStates.getAddon(aAddon.location, aAddon.id);
+    if (xpiState) {
+      xpiState.syncWithDB(aAddon);
+      XPIStates.save();
+    } else {
+      // There should always be an xpiState
+      logger.warn("No XPIState for ${id} in ${location}", aAddon);
+    }
+
+    // Notify any other providers that a new theme has been enabled
+    if (aAddon.type == "theme" && !isDisabled)
+      AddonManagerPrivate.notifyAddonChanged(aAddon.id, aAddon.type, needsRestart);
+
+    return isDisabled;
+  },
+
+  /**
+   * Uninstalls an add-on, immediately if possible or marks it as pending
+   * uninstall if not.
+   *
+   * @param  aAddon
+   *         The DBAddonInternal to uninstall
+   * @param  aForcePending
+   *         Force this addon into the pending uninstall state, even if
+   *         it isn't marked as requiring a restart (used e.g. while the
+   *         add-on manager is open and offering an "undo" button)
+   * @throws if the addon cannot be uninstalled because it is in an install
+   *         location that does not allow it
+   */
+  uninstallAddon: function(aAddon, aForcePending) {
+    if (!(aAddon.inDatabase))
+      throw new Error("Cannot uninstall addon " + aAddon.id + " because it is not installed");
+
+    if (aAddon._installLocation.locked)
+      throw new Error("Cannot uninstall addon " + aAddon.id
+          + " from locked install location " + aAddon._installLocation.name);
+
+    // Inactive add-ons don't require a restart to uninstall
+    let requiresRestart = this.uninstallRequiresRestart(aAddon);
+
+    // if makePending is true, we don't actually apply the uninstall,
+    // we just mark the addon as having a pending uninstall
+    let makePending = aForcePending || requiresRestart;
+
+    if (makePending && aAddon.pendingUninstall)
+      throw new Error("Add-on is already marked to be uninstalled");
+
+    aAddon._hasResourceCache.clear();
+
+    if (aAddon._updateCheck) {
+      logger.debug("Cancel in-progress update check for " + aAddon.id);
+      aAddon._updateCheck.cancel();
+    }
+
+    let wasPending = aAddon.pendingUninstall;
+
+    if (makePending) {
+      // We create an empty directory in the staging directory to indicate
+      // that an uninstall is necessary on next startup. Temporary add-ons are
+      // automatically uninstalled on shutdown anyway so there is no need to
+      // do this for them.
+      if (aAddon._installLocation.name != KEY_APP_TEMPORARY) {
+        let stage = aAddon._installLocation.getStagingDir();
+        stage.append(aAddon.id);
+        if (!stage.exists())
+          stage.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+      }
+
+      XPIDatabase.setAddonProperties(aAddon, {
+        pendingUninstall: true
+      });
+      Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, true);
+      let xpiState = XPIStates.getAddon(aAddon.location, aAddon.id);
+      if (xpiState) {
+        xpiState.enabled = false;
+        XPIStates.save();
+      } else {
+        logger.warn("Can't find XPI state while uninstalling ${id} from ${location}", aAddon);
+      }
+    }
+
+    // If the add-on is not visible then there is no need to notify listeners.
+    if (!aAddon.visible)
+      return;
+
+    let wrapper = aAddon.wrapper;
+
+    // If the add-on wasn't already pending uninstall then notify listeners.
+    if (!wasPending) {
+      // Passing makePending as the requiresRestart parameter is a little
+      // strange as in some cases this operation can complete without a restart
+      // so really this is now saying that the uninstall isn't going to happen
+      // immediately but will happen later.
+      AddonManagerPrivate.callAddonListeners("onUninstalling", wrapper,
+                                             makePending);
+    }
+
+    // Reveal the highest priority add-on with the same ID
+    function revealAddon(aAddon) {
+      XPIDatabase.makeAddonVisible(aAddon);
+
+      let wrappedAddon = aAddon.wrapper;
+      AddonManagerPrivate.callAddonListeners("onInstalling", wrappedAddon, false);
+
+      if (!aAddon.disabled && !XPIProvider.enableRequiresRestart(aAddon)) {
+        XPIDatabase.updateAddonActive(aAddon, true);
+      }
+
+      if (aAddon.bootstrap) {
+        XPIProvider.callBootstrapMethod(aAddon, aAddon._sourceBundle,
+                                        "install", BOOTSTRAP_REASONS.ADDON_INSTALL);
+
+        if (aAddon.active) {
+          XPIProvider.callBootstrapMethod(aAddon, aAddon._sourceBundle,
+                                          "startup", BOOTSTRAP_REASONS.ADDON_INSTALL);
+        }
+        else {
+          XPIProvider.unloadBootstrapScope(aAddon.id);
+        }
+      }
+
+      // We always send onInstalled even if a restart is required to enable
+      // the revealed add-on
+      AddonManagerPrivate.callAddonListeners("onInstalled", wrappedAddon);
+    }
+
+    function findAddonAndReveal(aId) {
+      let [locationName, ] = XPIStates.findAddon(aId);
+      if (locationName) {
+        XPIDatabase.getAddonInLocation(aId, locationName, revealAddon);
+      }
+    }
+
+    if (!makePending) {
+      if (aAddon.bootstrap) {
+        if (aAddon.active) {
+          this.callBootstrapMethod(aAddon, aAddon._sourceBundle, "shutdown",
+                                   BOOTSTRAP_REASONS.ADDON_UNINSTALL);
+        }
+
+        this.callBootstrapMethod(aAddon, aAddon._sourceBundle, "uninstall",
+                                 BOOTSTRAP_REASONS.ADDON_UNINSTALL);
+        this.unloadBootstrapScope(aAddon.id);
+        flushChromeCaches();
+      }
+      aAddon._installLocation.uninstallAddon(aAddon.id);
+      XPIDatabase.removeAddonMetadata(aAddon);
+      XPIStates.removeAddon(aAddon.location, aAddon.id);
+      AddonManagerPrivate.callAddonListeners("onUninstalled", wrapper);
+
+      findAddonAndReveal(aAddon.id);
+    }
+    else if (aAddon.bootstrap && aAddon.active && !this.disableRequiresRestart(aAddon)) {
+      this.callBootstrapMethod(aAddon, aAddon._sourceBundle, "shutdown",
+                               BOOTSTRAP_REASONS.ADDON_UNINSTALL);
+      this.unloadBootstrapScope(aAddon.id);
+      XPIDatabase.updateAddonActive(aAddon, false);
+    }
+
+    // Notify any other providers that a new theme has been enabled
+    if (aAddon.type == "theme" && aAddon.active)
+      AddonManagerPrivate.notifyAddonChanged(null, aAddon.type, requiresRestart);
+  },
+
+  /**
+   * Cancels the pending uninstall of an add-on.
+   *
+   * @param  aAddon
+   *         The DBAddonInternal to cancel uninstall for
+   */
+  cancelUninstallAddon: function(aAddon) {
+    if (!(aAddon.inDatabase))
+      throw new Error("Can only cancel uninstall for installed addons.");
+    if (!aAddon.pendingUninstall)
+      throw new Error("Add-on is not marked to be uninstalled");
+
+    if (aAddon._installLocation.name != KEY_APP_TEMPORARY)
+      aAddon._installLocation.cleanStagingDir([aAddon.id]);
+
+    XPIDatabase.setAddonProperties(aAddon, {
+      pendingUninstall: false
+    });
+
+    if (!aAddon.visible)
+      return;
+
+    Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, true);
+
+    // TODO hide hidden add-ons (bug 557710)
+    let wrapper = aAddon.wrapper;
+    AddonManagerPrivate.callAddonListeners("onOperationCancelled", wrapper);
+
+    if (aAddon.bootstrap && !aAddon.disabled && !this.enableRequiresRestart(aAddon)) {
+      this.callBootstrapMethod(aAddon, aAddon._sourceBundle, "startup",
+                               BOOTSTRAP_REASONS.ADDON_INSTALL);
+      XPIDatabase.updateAddonActive(aAddon, true);
+    }
+
+    // Notify any other providers that this theme is now enabled again.
+    if (aAddon.type == "theme" && aAddon.active)
+      AddonManagerPrivate.notifyAddonChanged(aAddon.id, aAddon.type, false);
+  }
+};
+
+function getHashStringForCrypto(aCrypto) {
+  // return the two-digit hexadecimal code for a byte
+  let toHexString = charCode => ("0" + charCode.toString(16)).slice(-2);
+
+  // convert the binary hash data to a hex string.
+  let binary = aCrypto.finish(false);
+  let hash = Array.from(binary, c => toHexString(c.charCodeAt(0)))
+  return hash.join("").toLowerCase();
+}
+
+/**
+ * Base class for objects that manage the installation of an addon.
+ * This class isn't instantiated directly, see the derived classes below.
+ */
+class AddonInstall {
+  /**
+   * Instantiates an AddonInstall.
+   *
+   * @param  aInstallLocation
+   *         The install location the add-on will be installed into
+   * @param  aUrl
+   *         The nsIURL to get the add-on from. If this is an nsIFileURL then
+   *         the add-on will not need to be downloaded
+   * @param  aHash
+   *         An optional hash for the add-on
+   * @param  aExistingAddon
+   *         The add-on this install will update if known
+   */
+  constructor(aInstallLocation, aUrl, aHash, aExistingAddon) {
+    this.wrapper = new AddonInstallWrapper(this);
+    this.installLocation = aInstallLocation;
+    this.sourceURI = aUrl;
+
+    if (aHash) {
+      let hashSplit = aHash.toLowerCase().split(":");
+      this.originalHash = {
+        algorithm: hashSplit[0],
+        data: hashSplit[1]
+      };
+    }
+    this.hash = this.originalHash;
+    this.existingAddon = aExistingAddon;
+    this.releaseNotesURI = null;
+
+    this.listeners = [];
+    this.icons = {};
+    this.error = 0;
+
+    this.progress = 0;
+    this.maxProgress = -1;
+
+    // Giving each instance of AddonInstall a reference to the logger.
+    this.logger = logger;
+
+    this.name = null;
+    this.type = null;
+    this.version = null;
+
+    this.file = null;
+    this.ownsTempFile = null;
+    this.certificate = null;
+    this.certName = null;
+
+    this.linkedInstalls = null;
+    this.addon = null;
+    this.state = null;
+
+    XPIProvider.installs.add(this);
+  }
+
+  /**
+   * Starts installation of this add-on from whatever state it is currently at
+   * if possible.
+   *
+   * Note this method is overridden to handle additional state in
+   * the subclassses below.
+   *
+   * @throws if installation cannot proceed from the current state
+   */
+  install() {
+    switch (this.state) {
+    case AddonManager.STATE_DOWNLOADED:
+      this.startInstall();
+      break;
+    case AddonManager.STATE_POSTPONED:
+      logger.debug(`Postponing install of ${this.addon.id}`);
+      break;
+    case AddonManager.STATE_DOWNLOADING:
+    case AddonManager.STATE_CHECKING:
+    case AddonManager.STATE_INSTALLING:
+      // Installation is already running
+      return;
+    default:
+      throw new Error("Cannot start installing from this state");
+    }
+  }
+
+  /**
+   * Cancels installation of this add-on.
+   *
+   * Note this method is overridden to handle additional state in
+   * the subclass DownloadAddonInstall.
+   *
+   * @throws if installation cannot be cancelled from the current state
+   */
+  cancel() {
+    switch (this.state) {
+    case AddonManager.STATE_AVAILABLE:
+    case AddonManager.STATE_DOWNLOADED:
+      logger.debug("Cancelling download of " + this.sourceURI.spec);
+      this.state = AddonManager.STATE_CANCELLED;
+      XPIProvider.removeActiveInstall(this);
+      AddonManagerPrivate.callInstallListeners("onDownloadCancelled",
+                                               this.listeners, this.wrapper);
+      this.removeTemporaryFile();
+      break;
+    case AddonManager.STATE_INSTALLED:
+      logger.debug("Cancelling install of " + this.addon.id);
+      let xpi = this.installLocation.getStagingDir();
+      xpi.append(this.addon.id + ".xpi");
+      flushJarCache(xpi);
+      this.installLocation.cleanStagingDir([this.addon.id, this.addon.id + ".xpi",
+                                            this.addon.id + ".json"]);
+      this.state = AddonManager.STATE_CANCELLED;
+      XPIProvider.removeActiveInstall(this);
+
+      if (this.existingAddon) {
+        delete this.existingAddon.pendingUpgrade;
+        this.existingAddon.pendingUpgrade = null;
+      }
+
+      AddonManagerPrivate.callAddonListeners("onOperationCancelled", this.addon.wrapper);
+
+      AddonManagerPrivate.callInstallListeners("onInstallCancelled",
+                                               this.listeners, this.wrapper);
+      break;
+    case AddonManager.STATE_POSTPONED:
+      logger.debug(`Cancelling postponed install of ${this.addon.id}`);
+      this.state = AddonManager.STATE_CANCELLED;
+      XPIProvider.removeActiveInstall(this);
+      AddonManagerPrivate.callInstallListeners("onInstallCancelled",
+                                               this.listeners, this.wrapper);
+      this.removeTemporaryFile();
+
+      let stagingDir = this.installLocation.getStagingDir();
+      let stagedAddon = stagingDir.clone();
+
+      this.unstageInstall(stagedAddon);
+    default:
+      throw new Error("Cannot cancel install of " + this.sourceURI.spec +
+                      " from this state (" + this.state + ")");
+    }
+  }
+
+  /**
+   * Adds an InstallListener for this instance if the listener is not already
+   * registered.
+   *
+   * @param  aListener
+   *         The InstallListener to add
+   */
+  addListener(aListener) {
+    if (!this.listeners.some(function(i) { return i == aListener; }))
+      this.listeners.push(aListener);
+  }
+
+  /**
+   * Removes an InstallListener for this instance if it is registered.
+   *
+   * @param  aListener
+   *         The InstallListener to remove
+   */
+  removeListener(aListener) {
+    this.listeners = this.listeners.filter(function(i) {
+      return i != aListener;
+    });
+  }
+
+  /**
+   * Removes the temporary file owned by this AddonInstall if there is one.
+   */
+  removeTemporaryFile() {
+    // Only proceed if this AddonInstall owns its XPI file
+    if (!this.ownsTempFile) {
+      this.logger.debug("removeTemporaryFile: " + this.sourceURI.spec + " does not own temp file");
+      return;
+    }
+
+    try {
+      this.logger.debug("removeTemporaryFile: " + this.sourceURI.spec + " removing temp file " +
+          this.file.path);
+      this.file.remove(true);
+      this.ownsTempFile = false;
+    }
+    catch (e) {
+      this.logger.warn("Failed to remove temporary file " + this.file.path + " for addon " +
+          this.sourceURI.spec,
+          e);
+    }
+  }
+
+  /**
+   * Updates the sourceURI and releaseNotesURI values on the Addon being
+   * installed by this AddonInstall instance.
+   */
+  updateAddonURIs() {
+    this.addon.sourceURI = this.sourceURI.spec;
+    if (this.releaseNotesURI)
+      this.addon.releaseNotesURI = this.releaseNotesURI.spec;
+  }
+
+  /**
+   * Fills out linkedInstalls with AddonInstall instances for the other files
+   * in a multi-package XPI.
+   *
+   * @param  aFiles
+   *         An array of { entryName, file } for each remaining file from the
+   *         multi-package XPI.
+   */
+  _createLinkedInstalls(aFiles) {
+    return Task.spawn((function*() {
+      if (aFiles.length == 0)
+        return;
+
+      // Create new AddonInstall instances for every remaining file
+      if (!this.linkedInstalls)
+        this.linkedInstalls = [];
+
+      for (let { entryName, file } of aFiles) {
+        logger.debug("Creating linked install from " + entryName);
+        let install = yield createLocalInstall(file);
+
+        // Make the new install own its temporary file
+        install.ownsTempFile = true;
+
+        this.linkedInstalls.push(install);
+
+        // If one of the internal XPIs was multipackage then move its linked
+        // installs to the outer install
+        if (install.linkedInstalls) {
+          this.linkedInstalls.push(...install.linkedInstalls);
+          install.linkedInstalls = null;
+        }
+
+        install.sourceURI = this.sourceURI;
+        install.releaseNotesURI = this.releaseNotesURI;
+        if (install.state != AddonManager.STATE_DOWNLOAD_FAILED)
+          install.updateAddonURIs();
+      }
+    }).bind(this));
+  }
+
+  /**
+   * Loads add-on manifests from a multi-package XPI file. Each of the
+   * XPI and JAR files contained in the XPI will be extracted. Any that
+   * do not contain valid add-ons will be ignored. The first valid add-on will
+   * be installed by this AddonInstall instance, the rest will have new
+   * AddonInstall instances created for them.
+   *
+   * @param  aZipReader
+   *         An open nsIZipReader for the multi-package XPI's files. This will
+   *         be closed before this method returns.
+   */
+  _loadMultipackageManifests(aZipReader) {
+    return Task.spawn((function*() {
+      let files = [];
+      let entries = aZipReader.findEntries("(*.[Xx][Pp][Ii]|*.[Jj][Aa][Rr])");
+      while (entries.hasMore()) {
+        let entryName = entries.getNext();
+        let file = getTemporaryFile();
+        try {
+          aZipReader.extract(entryName, file);
+          files.push({ entryName, file });
+        }
+        catch (e) {
+          logger.warn("Failed to extract " + entryName + " from multi-package " +
+                      "XPI", e);
+          file.remove(false);
+        }
+      }
+
+      aZipReader.close();
+
+      if (files.length == 0) {
+        return Promise.reject([AddonManager.ERROR_CORRUPT_FILE,
+                               "Multi-package XPI does not contain any packages to install"]);
+      }
+
+      let addon = null;
+
+      // Find the first file that is a valid install and use it for
+      // the add-on that this AddonInstall instance will install.
+      for (let { entryName, file } of files) {
+        this.removeTemporaryFile();
+        try {
+          yield this.loadManifest(file);
+          logger.debug("Base multi-package XPI install came from " + entryName);
+          this.file = file;
+          this.ownsTempFile = true;
+
+          yield this._createLinkedInstalls(files.filter(f => f.file != file));
+          return undefined;
+        }
+        catch (e) {
+          // _createLinkedInstalls will log errors when it tries to process this
+          // file
+        }
+      }
+
+      // No valid add-on was found, delete all the temporary files
+      for (let { file } of files) {
+        try {
+          file.remove(true);
+        } catch (e) {
+          this.logger.warn("Could not remove temp file " + file.path);
+        }
+      }
+
+      return Promise.reject([AddonManager.ERROR_CORRUPT_FILE,
+                             "Multi-package XPI does not contain any valid packages to install"]);
+    }).bind(this));
+  }
+
+  /**
+   * Called after the add-on is a local file and the signature and install
+   * manifest can be read.
+   *
+   * @param  aCallback
+   *         A function to call when the manifest has been loaded
+   * @throws if the add-on does not contain a valid install manifest or the
+   *         XPI is incorrectly signed
+   */
+  loadManifest(file) {
+    return Task.spawn((function*() {
+      let zipreader = Cc["@mozilla.org/libjar/zip-reader;1"].
+          createInstance(Ci.nsIZipReader);
+      try {
+        zipreader.open(file);
+      }
+      catch (e) {
+        zipreader.close();
+        return Promise.reject([AddonManager.ERROR_CORRUPT_FILE, e]);
+      }
+
+      try {
+        // loadManifestFromZipReader performs the certificate verification for us
+        this.addon = yield loadManifestFromZipReader(zipreader, this.installLocation);
+      }
+      catch (e) {
+        zipreader.close();
+        return Promise.reject([AddonManager.ERROR_CORRUPT_FILE, e]);
+      }
+
+      // A multi-package XPI is a container, the add-ons it holds each
+      // have their own id.  Everything else had better have an id here.
+      if (!this.addon.id && this.addon.type != "multipackage") {
+        let err = new Error(`Cannot find id for addon ${file.path}`);
+        return Promise.reject([AddonManager.ERROR_CORRUPT_FILE, err]);
+      }
+
+      if (this.existingAddon) {
+        // Check various conditions related to upgrades
+        if (this.addon.id != this.existingAddon.id) {
+          zipreader.close();
+          return Promise.reject([AddonManager.ERROR_INCORRECT_ID,
+                                 `Refusing to upgrade addon ${this.existingAddon.id} to different ID {this.addon.id}`]);
+        }
+
+        if (this.addon.type == "multipackage") {
+          zipreader.close();
+          return Promise.reject([AddonManager.ERROR_UNEXPECTED_ADDON_TYPE,
+                                 `Refusing to upgrade addon ${this.existingAddon.id} to a multi-package xpi`]);
+        }
+
+        if (this.existingAddon.type == "webextension" && this.addon.type != "webextension") {
+          zipreader.close();
+          return Promise.reject([AddonManager.ERROR_UNEXPECTED_ADDON_TYPE,
+                                 "WebExtensions may not be upated to other extension types"]);
+        }
+      }
+
+      if (mustSign(this.addon.type)) {
+        if (this.addon.signedState <= AddonManager.SIGNEDSTATE_MISSING) {
+          // This add-on isn't properly signed by a signature that chains to the
+          // trusted root.
+          let state = this.addon.signedState;
+          this.addon = null;
+          zipreader.close();
+
+          if (state == AddonManager.SIGNEDSTATE_MISSING)
+            return Promise.reject([AddonManager.ERROR_SIGNEDSTATE_REQUIRED,
+                                   "signature is required but missing"])
+
+          return Promise.reject([AddonManager.ERROR_CORRUPT_FILE,
+                                 "signature verification failed"])
+        }
+      }
+      else if (this.addon.signedState == AddonManager.SIGNEDSTATE_UNKNOWN ||
+               this.addon.signedState == AddonManager.SIGNEDSTATE_NOT_REQUIRED) {
+        // Check object signing certificate, if any
+        let x509 = zipreader.getSigningCert(null);
+        if (x509) {
+          logger.debug("Verifying XPI signature");
+          if (verifyZipSigning(zipreader, x509)) {
+            this.certificate = x509;
+            if (this.certificate.commonName.length > 0) {
+              this.certName = this.certificate.commonName;
+            } else {
+              this.certName = this.certificate.organization;
+            }
+          } else {
+            zipreader.close();
+            return Promise.reject([AddonManager.ERROR_CORRUPT_FILE,
+                                   "XPI is incorrectly signed"]);
+          }
+        }
+      }
+
+      if (this.addon.type == "multipackage")
+        return this._loadMultipackageManifests(zipreader);
+
+      zipreader.close();
+
+      this.updateAddonURIs();
+
+      this.addon._install = this;
+      this.name = this.addon.selectedLocale.name;
+      this.type = this.addon.type;
+      this.version = this.addon.version;
+
+      // Setting the iconURL to something inside the XPI locks the XPI and
+      // makes it impossible to delete on Windows.
+
+      // Try to load from the existing cache first
+      let repoAddon = yield new Promise(resolve => AddonRepository.getCachedAddonByID(this.addon.id, resolve));
+
+      // It wasn't there so try to re-download it
+      if (!repoAddon) {
+        yield new Promise(resolve => AddonRepository.cacheAddons([this.addon.id], resolve));
+        repoAddon = yield new Promise(resolve => AddonRepository.getCachedAddonByID(this.addon.id, resolve));
+      }
+
+      this.addon._repositoryAddon = repoAddon;
+      this.name = this.name || this.addon._repositoryAddon.name;
+      this.addon.compatibilityOverrides = repoAddon ?
+        repoAddon.compatibilityOverrides :
+        null;
+      this.addon.appDisabled = !isUsableAddon(this.addon);
+      return undefined;
+    }).bind(this));
+  }
+
+  // TODO This relies on the assumption that we are always installing into the
+  // highest priority install location so the resulting add-on will be visible
+  // overriding any existing copy in another install location (bug 557710).
+  /**
+   * Installs the add-on into the install location.
+   */
+  startInstall() {
+    this.state = AddonManager.STATE_INSTALLING;
+    if (!AddonManagerPrivate.callInstallListeners("onInstallStarted",
+                                                  this.listeners, this.wrapper)) {
+      this.state = AddonManager.STATE_DOWNLOADED;
+      XPIProvider.removeActiveInstall(this);
+      AddonManagerPrivate.callInstallListeners("onInstallCancelled",
+                                               this.listeners, this.wrapper)
+      return;
+    }
+
+    // Find and cancel any pending installs for the same add-on in the same
+    // install location
+    for (let aInstall of XPIProvider.installs) {
+      if (aInstall.state == AddonManager.STATE_INSTALLED &&
+          aInstall.installLocation == this.installLocation &&
+          aInstall.addon.id == this.addon.id) {
+        logger.debug("Cancelling previous pending install of " + aInstall.addon.id);
+        aInstall.cancel();
+      }
+    }
+
+    let isUpgrade = this.existingAddon &&
+                    this.existingAddon._installLocation == this.installLocation;
+    let requiresRestart = XPIProvider.installRequiresRestart(this.addon);
+
+    logger.debug("Starting install of " + this.addon.id + " from " + this.sourceURI.spec);
+    AddonManagerPrivate.callAddonListeners("onInstalling",
+                                           this.addon.wrapper,
+                                           requiresRestart);
+
+    let stagedAddon = this.installLocation.getStagingDir();
+
+    Task.spawn((function*() {
+      let installedUnpacked = 0;
+
+      yield this.installLocation.requestStagingDir();
+
+      // remove any previously staged files
+      yield this.unstageInstall(stagedAddon);
+
+      stagedAddon.append(this.addon.id);
+      stagedAddon.leafName = this.addon.id + ".xpi";
+
+      installedUnpacked = yield this.stageInstall(requiresRestart, stagedAddon, isUpgrade);
+
+      if (requiresRestart) {
+        this.state = AddonManager.STATE_INSTALLED;
+        AddonManagerPrivate.callInstallListeners("onInstallEnded",
+                                                 this.listeners, this.wrapper,
+                                                 this.addon.wrapper);
+      }
+      else {
+        // The install is completed so it should be removed from the active list
+        XPIProvider.removeActiveInstall(this);
+
+        // Deactivate and remove the old add-on as necessary
+        let reason = BOOTSTRAP_REASONS.ADDON_INSTALL;
+        if (this.existingAddon) {
+          if (Services.vc.compare(this.existingAddon.version, this.addon.version) < 0)
+            reason = BOOTSTRAP_REASONS.ADDON_UPGRADE;
+          else
+            reason = BOOTSTRAP_REASONS.ADDON_DOWNGRADE;
+
+          if (this.existingAddon.bootstrap) {
+            let file = this.existingAddon._sourceBundle;
+            if (this.existingAddon.active) {
+              XPIProvider.callBootstrapMethod(this.existingAddon, file,
+                                              "shutdown", reason,
+                                              { newVersion: this.addon.version });
+            }
+
+            XPIProvider.callBootstrapMethod(this.existingAddon, file,
+                                            "uninstall", reason,
+                                            { newVersion: this.addon.version });
+            XPIProvider.unloadBootstrapScope(this.existingAddon.id);
+            flushChromeCaches();
+          }
+
+          if (!isUpgrade && this.existingAddon.active) {
+            XPIDatabase.updateAddonActive(this.existingAddon, false);
+          }
+        }
+
+        // Install the new add-on into its final location
+        let existingAddonID = this.existingAddon ? this.existingAddon.id : null;
+        let file = this.installLocation.installAddon({
+          id: this.addon.id,
+          source: stagedAddon,
+          existingAddonID
+        });
+
+        // Update the metadata in the database
+        this.addon._sourceBundle = file;
+        this.addon.visible = true;
+
+        if (isUpgrade) {
+          this.addon =  XPIDatabase.updateAddonMetadata(this.existingAddon, this.addon,
+                                                        file.persistentDescriptor);
+          let state = XPIStates.getAddon(this.installLocation.name, this.addon.id);
+          if (state) {
+            state.syncWithDB(this.addon, true);
+          } else {
+            logger.warn("Unexpected missing XPI state for add-on ${id}", this.addon);
+          }
+        }
+        else {
+          this.addon.active = (this.addon.visible && !this.addon.disabled);
+          this.addon = XPIDatabase.addAddonMetadata(this.addon, file.persistentDescriptor);
+          XPIStates.addAddon(this.addon);
+          this.addon.installDate = this.addon.updateDate;
+          XPIDatabase.saveChanges();
+        }
+        XPIStates.save();
+
+        let extraParams = {};
+        if (this.existingAddon) {
+          extraParams.oldVersion = this.existingAddon.version;
+        }
+
+        if (this.addon.bootstrap) {
+          XPIProvider.callBootstrapMethod(this.addon, file, "install",
+                                          reason, extraParams);
+        }
+
+        AddonManagerPrivate.callAddonListeners("onInstalled",
+                                               this.addon.wrapper);
+
+        logger.debug("Install of " + this.sourceURI.spec + " completed.");
+        this.state = AddonManager.STATE_INSTALLED;
+        AddonManagerPrivate.callInstallListeners("onInstallEnded",
+                                                 this.listeners, this.wrapper,
+                                                 this.addon.wrapper);
+
+        if (this.addon.bootstrap) {
+          if (this.addon.active) {
+            XPIProvider.callBootstrapMethod(this.addon, file, "startup",
+                                            reason, extraParams);
+          }
+          else {
+            // XXX this makes it dangerous to do some things in onInstallEnded
+            // listeners because important cleanup hasn't been done yet
+            XPIProvider.unloadBootstrapScope(this.addon.id);
+          }
+        }
+        XPIProvider.setTelemetry(this.addon.id, "unpacked", installedUnpacked);
+        recordAddonTelemetry(this.addon);
+      }
+    }).bind(this)).then(null, (e) => {
+      logger.warn(`Failed to install ${this.file.path} from ${this.sourceURI.spec} to ${stagedAddon.path}`, e);
+
+      if (stagedAddon.exists())
+        recursiveRemove(stagedAddon);
+      this.state = AddonManager.STATE_INSTALL_FAILED;
+      this.error = AddonManager.ERROR_FILE_ACCESS;
+      XPIProvider.removeActiveInstall(this);
+      AddonManagerPrivate.callAddonListeners("onOperationCancelled",
+                                             this.addon.wrapper);
+      AddonManagerPrivate.callInstallListeners("onInstallFailed",
+                                               this.listeners,
+                                               this.wrapper);
+    }).then(() => {
+      this.removeTemporaryFile();
+      return this.installLocation.releaseStagingDir();
+    });
+  }
+
+  /**
+   * Stages an upgrade for next application restart.
+   */
+  stageInstall(restartRequired, stagedAddon, isUpgrade) {
+    return Task.spawn((function*() {
+      let stagedJSON = stagedAddon.clone();
+      stagedJSON.leafName = this.addon.id + ".json";
+
+      let installedUnpacked = 0;
+
+      // First stage the file regardless of whether restarting is necessary
+      if (this.addon.unpack || Preferences.get(PREF_XPI_UNPACK, false)) {
+        logger.debug("Addon " + this.addon.id + " will be installed as " +
+                     "an unpacked directory");
+        stagedAddon.leafName = this.addon.id;
+        yield OS.File.makeDir(stagedAddon.path);
+        yield ZipUtils.extractFilesAsync(this.file, stagedAddon);
+        installedUnpacked = 1;
+      }
+      else {
+        logger.debug(`Addon ${this.addon.id} will be installed as a packed xpi`);
+        stagedAddon.leafName = this.addon.id + ".xpi";
+
+        yield OS.File.copy(this.file.path, stagedAddon.path);
+      }
+
+      if (restartRequired) {
+        // Point the add-on to its extracted files as the xpi may get deleted
+        this.addon._sourceBundle = stagedAddon;
+
+        // Cache the AddonInternal as it may have updated compatibility info
+        writeStringToFile(stagedJSON, JSON.stringify(this.addon));
+
+        logger.debug("Staged install of " + this.addon.id + " from " + this.sourceURI.spec + " ready; waiting for restart.");
+        if (isUpgrade) {
+          delete this.existingAddon.pendingUpgrade;
+          this.existingAddon.pendingUpgrade = this.addon;
+        }
+      }
+
+      return installedUnpacked;
+    }).bind(this));
+  }
+
+  /**
+   * Removes any previously staged upgrade.
+   */
+  unstageInstall(stagedAddon) {
+    return Task.spawn((function*() {
+      let stagedJSON = stagedAddon.clone();
+      let removedAddon = stagedAddon.clone();
+
+      stagedJSON.append(this.addon.id + ".json");
+
+      if (stagedJSON.exists()) {
+        stagedJSON.remove(true);
+      }
+
+      removedAddon.append(this.addon.id);
+      yield removeAsync(removedAddon);
+      removedAddon.leafName = this.addon.id + ".xpi";
+      yield removeAsync(removedAddon);
+    }).bind(this));
+  }
+
+  /**
+    * Postone a pending update, until restart or until the add-on resumes.
+    *
+    * @param {Function} resumeFunction - a function for the add-on to run
+    *                                    when resuming.
+    */
+  postpone(resumeFunction) {
+    return Task.spawn((function*() {
+      this.state = AddonManager.STATE_POSTPONED;
+
+      let stagingDir = this.installLocation.getStagingDir();
+      let stagedAddon = stagingDir.clone();
+
+      yield this.installLocation.requestStagingDir();
+      yield this.unstageInstall(stagedAddon);
+
+      stagedAddon.append(this.addon.id);
+      stagedAddon.leafName = this.addon.id + ".xpi";
+
+      yield this.stageInstall(true, stagedAddon, true);
+
+      AddonManagerPrivate.callInstallListeners("onInstallPostponed",
+                                               this.listeners, this.wrapper)
+
+      // upgrade has been staged for restart, provide a way for it to call the
+      // resume function.
+      if (resumeFunction) {
+        let callback = AddonManagerPrivate.getUpgradeListener(this.addon.id);
+        if (callback) {
+          callback({
+            version: this.version,
+            install: () => {
+              switch (this.state) {
+              case AddonManager.STATE_POSTPONED:
+                resumeFunction();
+                break;
+              default:
+                logger.warn(`${this.addon.id} cannot resume postponed upgrade from state (${this.state})`);
+                break;
+              }
+            },
+          });
+        }
+      }
+      this.installLocation.releaseStagingDir();
+    }).bind(this));
+  }
+}
+
+class LocalAddonInstall extends AddonInstall {
+  /**
+   * Initialises this install to be an install from a local file.
+   *
+   * @returns Promise
+   *          A Promise that resolves when the object is ready to use.
+   */
+  init() {
+    return Task.spawn((function*() {
+      this.file = this.sourceURI.QueryInterface(Ci.nsIFileURL).file;
+
+      if (!this.file.exists()) {
+        logger.warn("XPI file " + this.file.path + " does not exist");
+        this.state = AddonManager.STATE_DOWNLOAD_FAILED;
+        this.error = AddonManager.ERROR_NETWORK_FAILURE;
+        XPIProvider.removeActiveInstall(this);
+        return;
+      }
+
+      this.state = AddonManager.STATE_DOWNLOADED;
+      this.progress = this.file.fileSize;
+      this.maxProgress = this.file.fileSize;
+
+      if (this.hash) {
+        let crypto = Cc["@mozilla.org/security/hash;1"].
+            createInstance(Ci.nsICryptoHash);
+        try {
+          crypto.initWithString(this.hash.algorithm);
+        }
+        catch (e) {
+          logger.warn("Unknown hash algorithm '" + this.hash.algorithm + "' for addon " + this.sourceURI.spec, e);
+          this.state = AddonManager.STATE_DOWNLOAD_FAILED;
+          this.error = AddonManager.ERROR_INCORRECT_HASH;
+          XPIProvider.removeActiveInstall(this);
+          return;
+        }
+
+        let fis = Cc["@mozilla.org/network/file-input-stream;1"].
+            createInstance(Ci.nsIFileInputStream);
+        fis.init(this.file, -1, -1, false);
+        crypto.updateFromStream(fis, this.file.fileSize);
+        let calculatedHash = getHashStringForCrypto(crypto);
+        if (calculatedHash != this.hash.data) {
+          logger.warn("File hash (" + calculatedHash + ") did not match provided hash (" +
+                      this.hash.data + ")");
+          this.state = AddonManager.STATE_DOWNLOAD_FAILED;
+          this.error = AddonManager.ERROR_INCORRECT_HASH;
+          XPIProvider.removeActiveInstall(this);
+          return;
+        }
+      }
+
+      try {
+        yield this.loadManifest(this.file);
+      } catch ([error, message]) {
+        logger.warn("Invalid XPI", message);
+        this.state = AddonManager.STATE_DOWNLOAD_FAILED;
+        this.error = error;
+        XPIProvider.removeActiveInstall(this);
+        AddonManagerPrivate.callInstallListeners("onNewInstall",
+                                                 this.listeners,
+                                                 this.wrapper);
+        return;
+      }
+
+      let addon = yield new Promise(resolve => {
+        XPIDatabase.getVisibleAddonForID(this.addon.id, resolve);
+      });
+
+      this.existingAddon = addon;
+      if (addon)
+        applyBlocklistChanges(addon, this.addon);
+      this.addon.updateDate = Date.now();
+      this.addon.installDate = addon ? addon.installDate : this.addon.updateDate;
+
+      if (!this.addon.isCompatible) {
+        this.state = AddonManager.STATE_CHECKING;
+
+        yield new Promise(resolve => {
+          new UpdateChecker(this.addon, {
+            onUpdateFinished: aAddon => {
+              this.state = AddonManager.STATE_DOWNLOADED;
+              AddonManagerPrivate.callInstallListeners("onNewInstall",
+                                                       this.listeners,
+                                                       this.wrapper);
+              resolve();
+            }
+          }, AddonManager.UPDATE_WHEN_ADDON_INSTALLED);
+        });
+      }
+      else {
+        AddonManagerPrivate.callInstallListeners("onNewInstall",
+                                                 this.listeners,
+                                                 this.wrapper);
+
+      }
+    }).bind(this));
+  }
+
+  install() {
+    if (this.state == AddonManager.STATE_DOWNLOAD_FAILED) {
+      // For a local install, this state means that verification of the
+      // file failed (e.g., the hash or signature or manifest contents
+      // were invalid).  It doesn't make sense to retry anything in this
+      // case but we have callers who don't know if their AddonInstall
+      // object is a local file or a download so accomodate them here.
+      AddonManagerPrivate.callInstallListeners("onDownloadFailed",
+                                               this.listeners, this.wrapper);
+      return;
+    }
+    super.install();
+  }
+}
+
+class DownloadAddonInstall extends AddonInstall {
+  /**
+   * Instantiates a DownloadAddonInstall
+   *
+   * @param  installLocation
+   *         The InstallLocation the add-on will be installed into
+   * @param  url
+   *         The nsIURL to get the add-on from
+   * @param  name
+   *         An optional name for the add-on
+   * @param  hash
+   *         An optional hash for the add-on
+   * @param  existingAddon
+   *         The add-on this install will update if known
+   * @param  browser
+   *         The browser performing the install, used to display
+   *         authentication prompts.
+   * @param  type
+   *         An optional type for the add-on
+   * @param  icons
+   *         Optional icons for the add-on
+   * @param  version
+   *         An optional version for the add-on
+   */
+  constructor(installLocation, url, hash, existingAddon, browser,
+              name, type, icons, version) {
+    super(installLocation, url, hash, existingAddon);
+
+    this.browser = browser;
+
+    this.state = AddonManager.STATE_AVAILABLE;
+    this.name = name;
+    this.type = type;
+    this.version = version;
+    this.icons = icons;
+
+    this.stream = null;
+    this.crypto = null;
+    this.badCertHandler = null;
+    this.restartDownload = false;
+
+    AddonManagerPrivate.callInstallListeners("onNewInstall", this.listeners,
+                                            this.wrapper);
+  }
+
+  install() {
+    switch (this.state) {
+    case AddonManager.STATE_AVAILABLE:
+      this.startDownload();
+      break;
+    case AddonManager.STATE_DOWNLOAD_FAILED:
+    case AddonManager.STATE_INSTALL_FAILED:
+    case AddonManager.STATE_CANCELLED:
+      this.removeTemporaryFile();
+      this.state = AddonManager.STATE_AVAILABLE;
+      this.error = 0;
+      this.progress = 0;
+      this.maxProgress = -1;
+      this.hash = this.originalHash;
+      this.startDownload();
+      break;
+    default:
+      super.install();
+    }
+  }
+
+  cancel() {
+    if (this.state == AddonManager.STATE_DOWNLOADING) {
+      if (this.channel) {
+        logger.debug("Cancelling download of " + this.sourceURI.spec);
+        this.channel.cancel(Cr.NS_BINDING_ABORTED);
+      }
+    } else {
+      super.cancel();
+    }
+  }
+
+  observe(aSubject, aTopic, aData) {
+    // Network is going offline
+    this.cancel();
+  }
+
+  /**
+   * Starts downloading the add-on's XPI file.
+   */
+  startDownload() {
+    this.state = AddonManager.STATE_DOWNLOADING;
+    if (!AddonManagerPrivate.callInstallListeners("onDownloadStarted",
+                                                  this.listeners, this.wrapper)) {
+      logger.debug("onDownloadStarted listeners cancelled installation of addon " + this.sourceURI.spec);
+      this.state = AddonManager.STATE_CANCELLED;
+      XPIProvider.removeActiveInstall(this);
+      AddonManagerPrivate.callInstallListeners("onDownloadCancelled",
+                                               this.listeners, this.wrapper)
+      return;
+    }
+
+    // If a listener changed our state then do not proceed with the download
+    if (this.state != AddonManager.STATE_DOWNLOADING)
+      return;
+
+    if (this.channel) {
+      // A previous download attempt hasn't finished cleaning up yet, signal
+      // that it should restart when complete
+      logger.debug("Waiting for previous download to complete");
+      this.restartDownload = true;
+      return;
+    }
+
+    this.openChannel();
+  }
+
+  openChannel() {
+    this.restartDownload = false;
+
+    try {
+      this.file = getTemporaryFile();
+      this.ownsTempFile = true;
+      this.stream = Cc["@mozilla.org/network/file-output-stream;1"].
+                    createInstance(Ci.nsIFileOutputStream);
+      this.stream.init(this.file, FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE |
+                       FileUtils.MODE_TRUNCATE, FileUtils.PERMS_FILE, 0);
+    }
+    catch (e) {
+      logger.warn("Failed to start download for addon " + this.sourceURI.spec, e);
+      this.state = AddonManager.STATE_DOWNLOAD_FAILED;
+      this.error = AddonManager.ERROR_FILE_ACCESS;
+      XPIProvider.removeActiveInstall(this);
+      AddonManagerPrivate.callInstallListeners("onDownloadFailed",
+                                               this.listeners, this.wrapper);
+      return;
+    }
+
+    let listener = Cc["@mozilla.org/network/stream-listener-tee;1"].
+                   createInstance(Ci.nsIStreamListenerTee);
+    listener.init(this, this.stream);
+    try {
+      let requireBuiltIn = Preferences.get(PREF_INSTALL_REQUIREBUILTINCERTS, true);
+      this.badCertHandler = new CertUtils.BadCertHandler(!requireBuiltIn);
+
+      this.channel = NetUtil.newChannel({
+        uri: this.sourceURI,
+        loadUsingSystemPrincipal: true
+      });
+      this.channel.notificationCallbacks = this;
+      if (this.channel instanceof Ci.nsIHttpChannel) {
+        this.channel.setRequestHeader("Moz-XPI-Update", "1", true);
+        if (this.channel instanceof Ci.nsIHttpChannelInternal)
+          this.channel.forceAllowThirdPartyCookie = true;
+      }
+      this.channel.asyncOpen2(listener);
+
+      Services.obs.addObserver(this, "network:offline-about-to-go-offline", false);
+    }
+    catch (e) {
+      logger.warn("Failed to start download for addon " + this.sourceURI.spec, e);
+      this.state = AddonManager.STATE_DOWNLOAD_FAILED;
+      this.error = AddonManager.ERROR_NETWORK_FAILURE;
+      XPIProvider.removeActiveInstall(this);
+      AddonManagerPrivate.callInstallListeners("onDownloadFailed",
+                                               this.listeners, this.wrapper);
+    }
+  }
+
+  /**
+   * Update the crypto hasher with the new data and call the progress listeners.
+   *
+   * @see nsIStreamListener
+   */
+  onDataAvailable(aRequest, aContext, aInputstream, aOffset, aCount) {
+    this.crypto.updateFromStream(aInputstream, aCount);
+    this.progress += aCount;
+    if (!AddonManagerPrivate.callInstallListeners("onDownloadProgress",
+                                                  this.listeners, this.wrapper)) {
+      // TODO cancel the download and make it available again (bug 553024)
+    }
+  }
+
+  /**
+   * Check the redirect response for a hash of the target XPI and verify that
+   * we don't end up on an insecure channel.
+   *
+   * @see nsIChannelEventSink
+   */
+  asyncOnChannelRedirect(aOldChannel, aNewChannel, aFlags, aCallback) {
+    if (!this.hash && aOldChannel.originalURI.schemeIs("https") &&
+        aOldChannel instanceof Ci.nsIHttpChannel) {
+      try {
+        let hashStr = aOldChannel.getResponseHeader("X-Target-Digest");
+        let hashSplit = hashStr.toLowerCase().split(":");
+        this.hash = {
+          algorithm: hashSplit[0],
+          data: hashSplit[1]
+        };
+      }
+      catch (e) {
+      }
+    }
+
+    // Verify that we don't end up on an insecure channel if we haven't got a
+    // hash to verify with (see bug 537761 for discussion)
+    if (!this.hash)
+      this.badCertHandler.asyncOnChannelRedirect(aOldChannel, aNewChannel, aFlags, aCallback);
+    else
+      aCallback.onRedirectVerifyCallback(Cr.NS_OK);
+
+    this.channel = aNewChannel;
+  }
+
+  /**
+   * This is the first chance to get at real headers on the channel.
+   *
+   * @see nsIStreamListener
+   */
+  onStartRequest(aRequest, aContext) {
+    this.crypto = Cc["@mozilla.org/security/hash;1"].
+                  createInstance(Ci.nsICryptoHash);
+    if (this.hash) {
+      try {
+        this.crypto.initWithString(this.hash.algorithm);
+      }
+      catch (e) {
+        logger.warn("Unknown hash algorithm '" + this.hash.algorithm + "' for addon " + this.sourceURI.spec, e);
+        this.state = AddonManager.STATE_DOWNLOAD_FAILED;
+        this.error = AddonManager.ERROR_INCORRECT_HASH;
+        XPIProvider.removeActiveInstall(this);
+        AddonManagerPrivate.callInstallListeners("onDownloadFailed",
+                                                 this.listeners, this.wrapper);
+        aRequest.cancel(Cr.NS_BINDING_ABORTED);
+        return;
+      }
+    }
+    else {
+      // We always need something to consume data from the inputstream passed
+      // to onDataAvailable so just create a dummy cryptohasher to do that.
+      this.crypto.initWithString("sha1");
+    }
+
+    this.progress = 0;
+    if (aRequest instanceof Ci.nsIChannel) {
+      try {
+        this.maxProgress = aRequest.contentLength;
+      }
+      catch (e) {
+      }
+      logger.debug("Download started for " + this.sourceURI.spec + " to file " +
+          this.file.path);
+    }
+  }
+
+  /**
+   * The download is complete.
+   *
+   * @see nsIStreamListener
+   */
+  onStopRequest(aRequest, aContext, aStatus) {
+    this.stream.close();
+    this.channel = null;
+    this.badCerthandler = null;
+    Services.obs.removeObserver(this, "network:offline-about-to-go-offline");
+
+    // If the download was cancelled then update the state and send events
+    if (aStatus == Cr.NS_BINDING_ABORTED) {
+      if (this.state == AddonManager.STATE_DOWNLOADING) {
+        logger.debug("Cancelled download of " + this.sourceURI.spec);
+        this.state = AddonManager.STATE_CANCELLED;
+        XPIProvider.removeActiveInstall(this);
+        AddonManagerPrivate.callInstallListeners("onDownloadCancelled",
+                                                 this.listeners, this.wrapper);
+        // If a listener restarted the download then there is no need to
+        // remove the temporary file
+        if (this.state != AddonManager.STATE_CANCELLED)
+          return;
+      }
+
+      this.removeTemporaryFile();
+      if (this.restartDownload)
+        this.openChannel();
+      return;
+    }
+
+    logger.debug("Download of " + this.sourceURI.spec + " completed.");
+
+    if (Components.isSuccessCode(aStatus)) {
+      if (!(aRequest instanceof Ci.nsIHttpChannel) || aRequest.requestSucceeded) {
+        if (!this.hash && (aRequest instanceof Ci.nsIChannel)) {
+          try {
+            CertUtils.checkCert(aRequest,
+                                !Preferences.get(PREF_INSTALL_REQUIREBUILTINCERTS, true));
+          }
+          catch (e) {
+            this.downloadFailed(AddonManager.ERROR_NETWORK_FAILURE, e);
+            return;
+          }
+        }
+
+        // convert the binary hash data to a hex string.
+        let calculatedHash = getHashStringForCrypto(this.crypto);
+        this.crypto = null;
+        if (this.hash && calculatedHash != this.hash.data) {
+          this.downloadFailed(AddonManager.ERROR_INCORRECT_HASH,
+                              "Downloaded file hash (" + calculatedHash +
+                              ") did not match provided hash (" + this.hash.data + ")");
+          return;
+        }
+
+        this.loadManifest(this.file).then(() => {
+          if (this.addon.isCompatible) {
+            this.downloadCompleted();
+          }
+          else {
+            // TODO Should we send some event here (bug 557716)?
+            this.state = AddonManager.STATE_CHECKING;
+            new UpdateChecker(this.addon, {
+              onUpdateFinished: aAddon => this.downloadCompleted(),
+            }, AddonManager.UPDATE_WHEN_ADDON_INSTALLED);
+          }
+        }, ([error, message]) => {
+          this.removeTemporaryFile();
+          this.downloadFailed(error, message);
+        });
+      }
+      else if (aRequest instanceof Ci.nsIHttpChannel) {
+        this.downloadFailed(AddonManager.ERROR_NETWORK_FAILURE,
+                            aRequest.responseStatus + " " +
+                            aRequest.responseStatusText);
+      }
+      else {
+        this.downloadFailed(AddonManager.ERROR_NETWORK_FAILURE, aStatus);
+      }
+    }
+    else {
+      this.downloadFailed(AddonManager.ERROR_NETWORK_FAILURE, aStatus);
+    }
+  }
+
+  /**
+   * Notify listeners that the download failed.
+   *
+   * @param  aReason
+   *         Something to log about the failure
+   * @param  error
+   *         The error code to pass to the listeners
+   */
+  downloadFailed(aReason, aError) {
+    logger.warn("Download of " + this.sourceURI.spec + " failed", aError);
+    this.state = AddonManager.STATE_DOWNLOAD_FAILED;
+    this.error = aReason;
+    XPIProvider.removeActiveInstall(this);
+    AddonManagerPrivate.callInstallListeners("onDownloadFailed", this.listeners,
+                                             this.wrapper);
+
+    // If the listener hasn't restarted the download then remove any temporary
+    // file
+    if (this.state == AddonManager.STATE_DOWNLOAD_FAILED) {
+      logger.debug("downloadFailed: removing temp file for " + this.sourceURI.spec);
+      this.removeTemporaryFile();
+    }
+    else
+      logger.debug("downloadFailed: listener changed AddonInstall state for " +
+          this.sourceURI.spec + " to " + this.state);
+  }
+
+  /**
+   * Notify listeners that the download completed.
+   */
+  downloadCompleted() {
+    XPIDatabase.getVisibleAddonForID(this.addon.id, aAddon => {
+      if (aAddon)
+        this.existingAddon = aAddon;
+
+      this.state = AddonManager.STATE_DOWNLOADED;
+      this.addon.updateDate = Date.now();
+
+      if (this.existingAddon) {
+        this.addon.existingAddonID = this.existingAddon.id;
+        this.addon.installDate = this.existingAddon.installDate;
+        applyBlocklistChanges(this.existingAddon, this.addon);
+      }
+      else {
+        this.addon.installDate = this.addon.updateDate;
+      }
+
+      if (AddonManagerPrivate.callInstallListeners("onDownloadEnded",
+                                                   this.listeners,
+                                                   this.wrapper)) {
+        // If a listener changed our state then do not proceed with the install
+        if (this.state != AddonManager.STATE_DOWNLOADED)
+          return;
+
+        // If an upgrade listener is registered for this add-on, pass control
+        // over the upgrade to the add-on.
+        if (AddonManagerPrivate.hasUpgradeListener(this.addon.id)) {
+          logger.info(`add-on ${this.addon.id} has an upgrade listener, postponing upgrade until restart`);
+          let resumeFn = () => {
+            logger.info(`${this.addon.id} has resumed a previously postponed upgrade`);
+            this.state = AddonManager.STATE_DOWNLOADED;
+            this.install();
+          }
+          this.postpone(resumeFn);
+        } else {
+          // no upgrade listener present, so proceed with normal install
+          this.install();
+          if (this.linkedInstalls) {
+            for (let install of this.linkedInstalls) {
+              if (install.state == AddonManager.STATE_DOWNLOADED)
+                install.install();
+            }
+          }
+        }
+      }
+    });
+  }
+
+  getInterface(iid) {
+    if (iid.equals(Ci.nsIAuthPrompt2)) {
+      let win = null;
+      if (this.browser) {
+        win = this.browser.contentWindow || this.browser.ownerDocument.defaultView;
+      }
+
+      let factory = Cc["@mozilla.org/prompter;1"].
+                    getService(Ci.nsIPromptFactory);
+      let prompt = factory.getPrompt(win, Ci.nsIAuthPrompt2);
+
+      if (this.browser && prompt instanceof Ci.nsILoginManagerPrompter)
+        prompt.browser = this.browser;
+
+      return prompt;
+    }
+    else if (iid.equals(Ci.nsIChannelEventSink)) {
+      return this;
+    }
+
+    return this.badCertHandler.getInterface(iid);
+  }
+
+  /**
+    * Postone a pending update, until restart or until the add-on resumes.
+    *
+    * @param {Function} resumeFn - a function for the add-on to run
+    *                                    when resuming.
+    */
+  postpone(resumeFn) {
+    return Task.spawn((function*() {
+      this.state = AddonManager.STATE_POSTPONED;
+
+      let stagingDir = this.installLocation.getStagingDir();
+      let stagedAddon = stagingDir.clone();
+
+      yield this.installLocation.requestStagingDir();
+      yield this.unstageInstall(stagedAddon);
+
+      stagedAddon.append(this.addon.id);
+      stagedAddon.leafName = this.addon.id + ".xpi";
+
+      yield this.stageInstall(true, stagedAddon, true);
+
+      AddonManagerPrivate.callInstallListeners("onInstallPostponed",
+                                               this.listeners, this.wrapper)
+
+      // upgrade has been staged for restart, provide a way for it to call the
+      // resume function.
+      let callback = AddonManagerPrivate.getUpgradeListener(this.addon.id);
+      if (callback) {
+        callback({
+          version: this.version,
+          install: () => {
+            switch (this.state) {
+            case AddonManager.STATE_POSTPONED:
+              if (resumeFn) {
+                resumeFn();
+              }
+              break;
+            default:
+              logger.warn(`${this.addon.id} cannot resume postponed upgrade from state (${this.state})`);
+              break;
+            }
+          },
+        });
+      }
+      // Release the staging directory lock, but since the staging dir is populated
+      // it will not be removed until resumed or installed by restart.
+      // See also cleanStagingDir()
+      this.installLocation.releaseStagingDir();
+    }).bind(this));
+  }
+}
+
+/**
+ * This class exists just for the specific case of staged add-ons that
+ * fail to install at startup.  When that happens, the add-on remains
+ * staged but we want to keep track of it like other installs so that we
+ * can clean it up if the same add-on is installed again (see the comment
+ * about "pending installs for the same add-on" in AddonInstall.startInstall)
+ */
+class StagedAddonInstall extends AddonInstall {
+  constructor(installLocation, dir, manifest) {
+    super(installLocation, dir);
+
+    this.name = manifest.name;
+    this.type = manifest.type;
+    this.version = manifest.version;
+    this.icons = manifest.icons;
+    this.releaseNotesURI = manifest.releaseNotesURI ?
+                           NetUtil.newURI(manifest.releaseNotesURI) :
+                           null;
+    this.sourceURI = manifest.sourceURI ?
+                     NetUtil.newURI(manifest.sourceURI) :
+                     null;
+    this.file = null;
+    this.addon = manifest;
+
+    this.state = AddonManager.STATE_INSTALLED;
+  }
+}
+
+/**
+ * Creates a new AddonInstall to install an add-on from a local file.
+ *
+ * @param  file
+ *         The file to install
+ * @param  location
+ *         The location to install to
+ * @returns Promise
+ *          A Promise that resolves with the new install object.
+ */
+function createLocalInstall(file, location) {
+  if (!location) {
+    location = XPIProvider.installLocationsByName[KEY_APP_PROFILE];
+  }
+  let url = Services.io.newFileURI(file);
+
+  try {
+    let install = new LocalAddonInstall(location, url);
+    return install.init().then(() => install);
+  }
+  catch (e) {
+    logger.error("Error creating install", e);
+    XPIProvider.removeActiveInstall(this);
+    return Promise.resolve(null);
+  }
+}
+
+/**
+ * Creates a new AddonInstall to download and install a URL.
+ *
+ * @param  aCallback
+ *         The callback to pass the new AddonInstall to
+ * @param  aUri
+ *         The URI to download
+ * @param  aHash
+ *         A hash for the add-on
+ * @param  aName
+ *         A name for the add-on
+ * @param  aIcons
+ *         An icon URLs for the add-on
+ * @param  aVersion
+ *         A version for the add-on
+ * @param  aBrowser
+ *         The browser performing the install
+ */
+function createDownloadInstall(aCallback, aUri, aHash, aName, aIcons,
+                               aVersion, aBrowser) {
+  let location = XPIProvider.installLocationsByName[KEY_APP_PROFILE];
+  let url = NetUtil.newURI(aUri);
+
+  if (url instanceof Ci.nsIFileURL) {
+    let install = new LocalAddonInstall(location, url, aHash);
+    install.init().then(() => { aCallback(install); });
+  } else {
+    let install = new DownloadAddonInstall(location, url, aHash, null,
+                                           aBrowser, aName, null, aIcons,
+                                           aVersion);
+    aCallback(install);
+  }
+}
+
+/**
+ * Creates a new AddonInstall for an update.
+ *
+ * @param  aCallback
+ *         The callback to pass the new AddonInstall to
+ * @param  aAddon
+ *         The add-on being updated
+ * @param  aUpdate
+ *         The metadata about the new version from the update manifest
+ */
+function createUpdate(aCallback, aAddon, aUpdate) {
+  let url = NetUtil.newURI(aUpdate.updateURL);
+
+  Task.spawn(function*() {
+    let install;
+    if (url instanceof Ci.nsIFileURL) {
+      install = new LocalAddonInstall(aAddon._installLocation, url,
+                                      aUpdate.updateHash, aAddon);
+      yield install.init();
+    } else {
+      install = new DownloadAddonInstall(aAddon._installLocation, url,
+                                         aUpdate.updateHash, aAddon, null,
+                                         aAddon.selectedLocale.name, aAddon.type,
+                                         aAddon.icons, aUpdate.version);
+    }
+    try {
+      if (aUpdate.updateInfoURL)
+        install.releaseNotesURI = NetUtil.newURI(escapeAddonURI(aAddon, aUpdate.updateInfoURL));
+    }
+    catch (e) {
+      // If the releaseNotesURI cannot be parsed then just ignore it.
+    }
+
+    aCallback(install);
+  });
+}
+
+// This map is shared between AddonInstallWrapper and AddonWrapper
+const wrapperMap = new WeakMap();
+let installFor = wrapper => wrapperMap.get(wrapper);
+let addonFor = installFor;
+
+/**
+ * Creates a wrapper for an AddonInstall that only exposes the public API
+ *
+ * @param  install
+ *         The AddonInstall to create a wrapper for
+ */
+function AddonInstallWrapper(aInstall) {
+  wrapperMap.set(this, aInstall);
+}
+
+AddonInstallWrapper.prototype = {
+  get __AddonInstallInternal__() {
+    return AppConstants.DEBUG ? installFor(this) : undefined;
+  },
+
+  get type() {
+    return getExternalType(installFor(this).type);
+  },
+
+  get iconURL() {
+    return installFor(this).icons[32];
+  },
+
+  get existingAddon() {
+    let install = installFor(this);
+    return install.existingAddon ? install.existingAddon.wrapper : null;
+  },
+
+  get addon() {
+    let install = installFor(this);
+    return install.addon ? install.addon.wrapper : null;
+  },
+
+  get sourceURI() {
+    return installFor(this).sourceURI;
+  },
+
+  get linkedInstalls() {
+    let install = installFor(this);
+    if (!install.linkedInstalls)
+      return null;
+    return install.linkedInstalls.map(i => i.wrapper);
+  },
+
+  install: function() {
+    installFor(this).install();
+  },
+
+  cancel: function() {
+    installFor(this).cancel();
+  },
+
+  addListener: function(listener) {
+    installFor(this).addListener(listener);
+  },
+
+  removeListener: function(listener) {
+    installFor(this).removeListener(listener);
+  },
+};
+
+["name", "version", "icons", "releaseNotesURI", "file", "state", "error",
+ "progress", "maxProgress", "certificate", "certName"].forEach(function(aProp) {
+  Object.defineProperty(AddonInstallWrapper.prototype, aProp, {
+    get: function() {
+      return installFor(this)[aProp];
+    },
+    enumerable: true,
+  });
+});
+
+/**
+ * Creates a new update checker.
+ *
+ * @param  aAddon
+ *         The add-on to check for updates
+ * @param  aListener
+ *         An UpdateListener to notify of updates
+ * @param  aReason
+ *         The reason for the update check
+ * @param  aAppVersion
+ *         An optional application version to check for updates for
+ * @param  aPlatformVersion
+ *         An optional platform version to check for updates for
+ * @throws if the aListener or aReason arguments are not valid
+ */
+function UpdateChecker(aAddon, aListener, aReason, aAppVersion, aPlatformVersion) {
+  if (!aListener || !aReason)
+    throw Cr.NS_ERROR_INVALID_ARG;
+
+  Components.utils.import("resource://gre/modules/addons/AddonUpdateChecker.jsm");
+
+  this.addon = aAddon;
+  aAddon._updateCheck = this;
+  XPIProvider.doing(this);
+  this.listener = aListener;
+  this.appVersion = aAppVersion;
+  this.platformVersion = aPlatformVersion;
+  this.syncCompatibility = (aReason == AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
+
+  let updateURL = aAddon.updateURL;
+  if (!updateURL) {
+    if (aReason == AddonManager.UPDATE_WHEN_PERIODIC_UPDATE &&
+        Services.prefs.getPrefType(PREF_EM_UPDATE_BACKGROUND_URL) == Services.prefs.PREF_STRING) {
+      updateURL = Services.prefs.getCharPref(PREF_EM_UPDATE_BACKGROUND_URL);
+    } else {
+      updateURL = Services.prefs.getCharPref(PREF_EM_UPDATE_URL);
+    }
+  }
+
+  const UPDATE_TYPE_COMPATIBILITY = 32;
+  const UPDATE_TYPE_NEWVERSION = 64;
+
+  aReason |= UPDATE_TYPE_COMPATIBILITY;
+  if ("onUpdateAvailable" in this.listener)
+    aReason |= UPDATE_TYPE_NEWVERSION;
+
+  let url = escapeAddonURI(aAddon, updateURL, aReason, aAppVersion);
+  this._parser = AddonUpdateChecker.checkForUpdates(aAddon.id, aAddon.updateKey,
+                                                    url, this);
+}
+
+UpdateChecker.prototype = {
+  addon: null,
+  listener: null,
+  appVersion: null,
+  platformVersion: null,
+  syncCompatibility: null,
+
+  /**
+   * Calls a method on the listener passing any number of arguments and
+   * consuming any exceptions.
+   *
+   * @param  aMethod
+   *         The method to call on the listener
+   */
+  callListener: function(aMethod, ...aArgs) {
+    if (!(aMethod in this.listener))
+      return;
+
+    try {
+      this.listener[aMethod].apply(this.listener, aArgs);
+    }
+    catch (e) {
+      logger.warn("Exception calling UpdateListener method " + aMethod, e);
+    }
+  },
+
+  /**
+   * Called when AddonUpdateChecker completes the update check
+   *
+   * @param  updates
+   *         The list of update details for the add-on
+   */
+  onUpdateCheckComplete: function(aUpdates) {
+    XPIProvider.done(this.addon._updateCheck);
+    this.addon._updateCheck = null;
+    let AUC = AddonUpdateChecker;
+
+    let ignoreMaxVersion = false;
+    let ignoreStrictCompat = false;
+    if (!AddonManager.checkCompatibility) {
+      ignoreMaxVersion = true;
+      ignoreStrictCompat = true;
+    } else if (this.addon.type in COMPATIBLE_BY_DEFAULT_TYPES &&
+               !AddonManager.strictCompatibility &&
+               !this.addon.strictCompatibility &&
+               !this.addon.hasBinaryComponents) {
+      ignoreMaxVersion = true;
+    }
+
+    // Always apply any compatibility update for the current version
+    let compatUpdate = AUC.getCompatibilityUpdate(aUpdates, this.addon.version,
+                                                  this.syncCompatibility,
+                                                  null, null,
+                                                  ignoreMaxVersion,
+                                                  ignoreStrictCompat);
+    // Apply the compatibility update to the database
+    if (compatUpdate)
+      this.addon.applyCompatibilityUpdate(compatUpdate, this.syncCompatibility);
+
+    // If the request is for an application or platform version that is
+    // different to the current application or platform version then look for a
+    // compatibility update for those versions.
+    if ((this.appVersion &&
+         Services.vc.compare(this.appVersion, Services.appinfo.version) != 0) ||
+        (this.platformVersion &&
+         Services.vc.compare(this.platformVersion, Services.appinfo.platformVersion) != 0)) {
+      compatUpdate = AUC.getCompatibilityUpdate(aUpdates, this.addon.version,
+                                                false, this.appVersion,
+                                                this.platformVersion,
+                                                ignoreMaxVersion,
+                                                ignoreStrictCompat);
+    }
+
+    if (compatUpdate)
+      this.callListener("onCompatibilityUpdateAvailable", this.addon.wrapper);
+    else
+      this.callListener("onNoCompatibilityUpdateAvailable", this.addon.wrapper);
+
+    function sendUpdateAvailableMessages(aSelf, aInstall) {
+      if (aInstall) {
+        aSelf.callListener("onUpdateAvailable", aSelf.addon.wrapper,
+                           aInstall.wrapper);
+      }
+      else {
+        aSelf.callListener("onNoUpdateAvailable", aSelf.addon.wrapper);
+      }
+      aSelf.callListener("onUpdateFinished", aSelf.addon.wrapper,
+                         AddonManager.UPDATE_STATUS_NO_ERROR);
+    }
+
+    let compatOverrides = AddonManager.strictCompatibility ?
+                            null :
+                            this.addon.compatibilityOverrides;
+
+    let update = AUC.getNewestCompatibleUpdate(aUpdates,
+                                           this.appVersion,
+                                           this.platformVersion,
+                                           ignoreMaxVersion,
+                                           ignoreStrictCompat,
+                                           compatOverrides);
+
+    if (update && Services.vc.compare(this.addon.version, update.version) < 0
+        && !this.addon._installLocation.locked) {
+      for (let currentInstall of XPIProvider.installs) {
+        // Skip installs that don't match the available update
+        if (currentInstall.existingAddon != this.addon ||
+            currentInstall.version != update.version)
+          continue;
+
+        // If the existing install has not yet started downloading then send an
+        // available update notification. If it is already downloading then
+        // don't send any available update notification
+        if (currentInstall.state == AddonManager.STATE_AVAILABLE) {
+          logger.debug("Found an existing AddonInstall for " + this.addon.id);
+          sendUpdateAvailableMessages(this, currentInstall);
+        }
+        else
+          sendUpdateAvailableMessages(this, null);
+        return;
+      }
+
+      createUpdate(aInstall => {
+        sendUpdateAvailableMessages(this, aInstall);
+      }, this.addon, update);
+    }
+    else {
+      sendUpdateAvailableMessages(this, null);
+    }
+  },
+
+  /**
+   * Called when AddonUpdateChecker fails the update check
+   *
+   * @param  aError
+   *         An error status
+   */
+  onUpdateCheckError: function(aError) {
+    XPIProvider.done(this.addon._updateCheck);
+    this.addon._updateCheck = null;
+    this.callListener("onNoCompatibilityUpdateAvailable", this.addon.wrapper);
+    this.callListener("onNoUpdateAvailable", this.addon.wrapper);
+    this.callListener("onUpdateFinished", this.addon.wrapper, aError);
+  },
+
+  /**
+   * Called to cancel an in-progress update check
+   */
+  cancel: function() {
+    let parser = this._parser;
+    if (parser) {
+      this._parser = null;
+      // This will call back to onUpdateCheckError with a CANCELLED error
+      parser.cancel();
+    }
+  }
+};
+
+/**
+ * The AddonInternal is an internal only representation of add-ons. It may
+ * have come from the database (see DBAddonInternal in XPIProviderUtils.jsm)
+ * or an install manifest.
+ */
+function AddonInternal() {
+  this._hasResourceCache = new Map();
+
+  XPCOMUtils.defineLazyGetter(this, "wrapper", () => {
+    return new AddonWrapper(this);
+  });
+}
+
+AddonInternal.prototype = {
+  _selectedLocale: null,
+  _hasResourceCache: null,
+  active: false,
+  visible: false,
+  userDisabled: false,
+  appDisabled: false,
+  softDisabled: false,
+  sourceURI: null,
+  releaseNotesURI: null,
+  foreignInstall: false,
+  seen: true,
+  skinnable: false,
+
+  /**
+   * @property {Array<string>} dependencies
+   *   An array of bootstrapped add-on IDs on which this add-on depends.
+   *   The add-on will remain appDisabled if any of the dependent
+   *   add-ons is not installed and enabled.
+   */
+  dependencies: Object.freeze([]),
+  hasEmbeddedWebExtension: false,
+
+  get selectedLocale() {
+    if (this._selectedLocale)
+      return this._selectedLocale;
+    let locale = Locale.findClosestLocale(this.locales);
+    this._selectedLocale = locale ? locale : this.defaultLocale;
+    return this._selectedLocale;
+  },
+
+  get providesUpdatesSecurely() {
+    return !!(this.updateKey || !this.updateURL ||
+              this.updateURL.substring(0, 6) == "https:");
+  },
+
+  get isCorrectlySigned() {
+    switch (this._installLocation.name) {
+      case KEY_APP_SYSTEM_ADDONS:
+        // System add-ons must be signed by the system key.
+        return this.signedState == AddonManager.SIGNEDSTATE_SYSTEM
+
+      case KEY_APP_SYSTEM_DEFAULTS:
+      case KEY_APP_TEMPORARY:
+        // Temporary and built-in system add-ons do not require signing.
+        return true;
+
+      case KEY_APP_SYSTEM_SHARE:
+      case KEY_APP_SYSTEM_LOCAL:
+        // On UNIX platforms except OSX, an additional location for system
+        // add-ons exists in /usr/{lib,share}/mozilla/extensions. Add-ons
+        // installed there do not require signing.
+        if (Services.appinfo.OS != "Darwin")
+          return true;
+        break;
+    }
+
+    if (this.signedState === AddonManager.SIGNEDSTATE_NOT_REQUIRED)
+      return true;
+    return this.signedState > AddonManager.SIGNEDSTATE_MISSING;
+  },
+
+  get isCompatible() {
+    return this.isCompatibleWith();
+  },
+
+  get disabled() {
+    return (this.userDisabled || this.appDisabled || this.softDisabled);
+  },
+
+  get isPlatformCompatible() {
+    if (this.targetPlatforms.length == 0)
+      return true;
+
+    let matchedOS = false;
+
+    // If any targetPlatform matches the OS and contains an ABI then we will
+    // only match a targetPlatform that contains both the current OS and ABI
+    let needsABI = false;
+
+    // Some platforms do not specify an ABI, test against null in that case.
+    let abi = null;
+    try {
+      abi = Services.appinfo.XPCOMABI;
+    }
+    catch (e) { }
+
+    // Something is causing errors in here
+    try {
+      for (let platform of this.targetPlatforms) {
+        if (platform.os == Services.appinfo.OS) {
+          if (platform.abi) {
+            needsABI = true;
+            if (platform.abi === abi)
+              return true;
+          }
+          else {
+            matchedOS = true;
+          }
+        }
+      }
+    } catch (e) {
+      let message = "Problem with addon " + this.id + " targetPlatforms "
+                    + JSON.stringify(this.targetPlatforms);
+      logger.error(message, e);
+      AddonManagerPrivate.recordException("XPI", message, e);
+      // don't trust this add-on
+      return false;
+    }
+
+    return matchedOS && !needsABI;
+  },
+
+  isCompatibleWith: function(aAppVersion, aPlatformVersion) {
+    let app = this.matchingTargetApplication;
+    if (!app)
+      return false;
+
+    // set reasonable defaults for minVersion and maxVersion
+    let minVersion = app.minVersion || "0";
+    let maxVersion = app.maxVersion || "*";
+
+    if (!aAppVersion)
+      aAppVersion = Services.appinfo.version;
+    if (!aPlatformVersion)
+      aPlatformVersion = Services.appinfo.platformVersion;
+
+    let version;
+    if (app.id == Services.appinfo.ID)
+      version = aAppVersion;
+    else if (app.id == TOOLKIT_ID)
+      version = aPlatformVersion
+
+    // Only extensions and dictionaries can be compatible by default; themes
+    // and language packs always use strict compatibility checking.
+    if (this.type in COMPATIBLE_BY_DEFAULT_TYPES &&
+        !AddonManager.strictCompatibility && !this.strictCompatibility &&
+        !this.hasBinaryComponents) {
+
+      // The repository can specify compatibility overrides.
+      // Note: For now, only blacklisting is supported by overrides.
+      if (this._repositoryAddon &&
+          this._repositoryAddon.compatibilityOverrides) {
+        let overrides = this._repositoryAddon.compatibilityOverrides;
+        let override = AddonRepository.findMatchingCompatOverride(this.version,
+                                                                  overrides);
+        if (override && override.type == "incompatible")
+          return false;
+      }
+
+      // Extremely old extensions should not be compatible by default.
+      let minCompatVersion;
+      if (app.id == Services.appinfo.ID)
+        minCompatVersion = XPIProvider.minCompatibleAppVersion;
+      else if (app.id == TOOLKIT_ID)
+        minCompatVersion = XPIProvider.minCompatiblePlatformVersion;
+
+      if (minCompatVersion &&
+          Services.vc.compare(minCompatVersion, maxVersion) > 0)
+        return false;
+
+      return Services.vc.compare(version, minVersion) >= 0;
+    }
+
+    return (Services.vc.compare(version, minVersion) >= 0) &&
+           (Services.vc.compare(version, maxVersion) <= 0)
+  },
+
+  get matchingTargetApplication() {
+    let app = null;
+    for (let targetApp of this.targetApplications) {
+      if (targetApp.id == Services.appinfo.ID)
+        return targetApp;
+      if (targetApp.id == TOOLKIT_ID)
+        app = targetApp;
+    }
+    return app;
+  },
+
+  get blocklistState() {
+    let staticItem = findMatchingStaticBlocklistItem(this);
+    if (staticItem)
+      return staticItem.level;
+
+    return Blocklist.getAddonBlocklistState(this.wrapper);
+  },
+
+  get blocklistURL() {
+    let staticItem = findMatchingStaticBlocklistItem(this);
+    if (staticItem) {
+      let url = Services.urlFormatter.formatURLPref("extensions.blocklist.itemURL");
+      return url.replace(/%blockID%/g, staticItem.blockID);
+    }
+
+    return Blocklist.getAddonBlocklistURL(this.wrapper);
+  },
+
+  applyCompatibilityUpdate: function(aUpdate, aSyncCompatibility) {
+    for (let targetApp of this.targetApplications) {
+      for (let updateTarget of aUpdate.targetApplications) {
+        if (targetApp.id == updateTarget.id && (aSyncCompatibility ||
+            Services.vc.compare(targetApp.maxVersion, updateTarget.maxVersion) < 0)) {
+          targetApp.minVersion = updateTarget.minVersion;
+          targetApp.maxVersion = updateTarget.maxVersion;
+        }
+      }
+    }
+    if (aUpdate.multiprocessCompatible !== undefined)
+      this.multiprocessCompatible = aUpdate.multiprocessCompatible;
+    this.appDisabled = !isUsableAddon(this);
+  },
+
+  /**
+   * getDataDirectory tries to execute the callback with two arguments:
+   * 1) the path of the data directory within the profile,
+   * 2) any exception generated from trying to build it.
+   */
+  getDataDirectory: function(callback) {
+    let parentPath = OS.Path.join(OS.Constants.Path.profileDir, "extension-data");
+    let dirPath = OS.Path.join(parentPath, this.id);
+
+    Task.spawn(function*() {
+      yield OS.File.makeDir(parentPath, {ignoreExisting: true});
+      yield OS.File.makeDir(dirPath, {ignoreExisting: true});
+    }).then(() => callback(dirPath, null),
+            e => callback(dirPath, e));
+  },
+
+  /**
+   * toJSON is called by JSON.stringify in order to create a filtered version
+   * of this object to be serialized to a JSON file. A new object is returned
+   * with copies of all non-private properties. Functions, getters and setters
+   * are not copied.
+   *
+   * @param  aKey
+   *         The key that this object is being serialized as in the JSON.
+   *         Unused here since this is always the main object serialized
+   *
+   * @return an object containing copies of the properties of this object
+   *         ignoring private properties, functions, getters and setters
+   */
+  toJSON: function(aKey) {
+    let obj = {};
+    for (let prop in this) {
+      // Ignore the wrapper property
+      if (prop == "wrapper")
+        continue;
+
+      // Ignore private properties
+      if (prop.substring(0, 1) == "_")
+        continue;
+
+      // Ignore getters
+      if (this.__lookupGetter__(prop))
+        continue;
+
+      // Ignore setters
+      if (this.__lookupSetter__(prop))
+        continue;
+
+      // Ignore functions
+      if (typeof this[prop] == "function")
+        continue;
+
+      obj[prop] = this[prop];
+    }
+
+    return obj;
+  },
+
+  /**
+   * When an add-on install is pending its metadata will be cached in a file.
+   * This method reads particular properties of that metadata that may be newer
+   * than that in the install manifest, like compatibility information.
+   *
+   * @param  aObj
+   *         A JS object containing the cached metadata
+   */
+  importMetadata: function(aObj) {
+    for (let prop of PENDING_INSTALL_METADATA) {
+      if (!(prop in aObj))
+        continue;
+
+      this[prop] = aObj[prop];
+    }
+
+    // Compatibility info may have changed so update appDisabled
+    this.appDisabled = !isUsableAddon(this);
+  },
+
+  permissions: function() {
+    let permissions = 0;
+
+    // Add-ons that aren't installed cannot be modified in any way
+    if (!(this.inDatabase))
+      return permissions;
+
+    if (!this.appDisabled) {
+      if (this.userDisabled || this.softDisabled) {
+        permissions |= AddonManager.PERM_CAN_ENABLE;
+      }
+      else if (this.type != "theme") {
+        permissions |= AddonManager.PERM_CAN_DISABLE;
+      }
+    }
+
+    // Add-ons that are in locked install locations, or are pending uninstall
+    // cannot be upgraded or uninstalled
+    if (!this._installLocation.locked && !this.pendingUninstall) {
+      // Experiments cannot be upgraded.
+      // System add-on upgrades are triggered through a different mechanism (see updateSystemAddons())
+      let isSystem = (this._installLocation.name == KEY_APP_SYSTEM_DEFAULTS ||
+                      this._installLocation.name == KEY_APP_SYSTEM_ADDONS);
+      // Add-ons that are installed by a file link cannot be upgraded.
+      if (this.type != "experiment" &&
+          !this._installLocation.isLinkedAddon(this.id) && !isSystem) {
+        permissions |= AddonManager.PERM_CAN_UPGRADE;
+      }
+
+      permissions |= AddonManager.PERM_CAN_UNINSTALL;
+    }
+
+    return permissions;
+  },
+};
+
+/**
+ * The AddonWrapper wraps an Addon to provide the data visible to consumers of
+ * the public API.
+ */
+function AddonWrapper(aAddon) {
+  wrapperMap.set(this, aAddon);
+}
+
+AddonWrapper.prototype = {
+  get __AddonInternal__() {
+    return AppConstants.DEBUG ? addonFor(this) : undefined;
+  },
+
+  get seen() {
+    return addonFor(this).seen;
+  },
+
+  get hasEmbeddedWebExtension() {
+    return addonFor(this).hasEmbeddedWebExtension;
+  },
+
+  markAsSeen: function() {
+    addonFor(this).seen = true;
+    XPIDatabase.saveChanges();
+  },
+
+  get type() {
+    return getExternalType(addonFor(this).type);
+  },
+
+  get isWebExtension() {
+    return addonFor(this).type == "webextension";
+  },
+
+  get temporarilyInstalled() {
+    return addonFor(this)._installLocation == TemporaryInstallLocation;
+  },
+
+  get aboutURL() {
+    return this.isActive ? addonFor(this)["aboutURL"] : null;
+  },
+
+  get optionsURL() {
+    if (!this.isActive) {
+      return null;
+    }
+
+    let addon = addonFor(this);
+    if (addon.optionsURL) {
+      if (this.isWebExtension || this.hasEmbeddedWebExtension) {
+        // The internal object's optionsURL property comes from the addons
+        // DB and should be a relative URL.  However, extensions with
+        // options pages installed before bug 1293721 was fixed got absolute
+        // URLs in the addons db.  This code handles both cases.
+        let base = ExtensionManagement.getURLForExtension(addon.id);
+        if (!base) {
+          return null;
+        }
+        return new URL(addon.optionsURL, base).href;
+      }
+      return addon.optionsURL;
+    }
+
+    if (this.hasResource("options.xul"))
+      return this.getResourceURI("options.xul").spec;
+
+    return null;
+  },
+
+  get optionsType() {
+    if (!this.isActive)
+      return null;
+
+    let addon = addonFor(this);
+    let hasOptionsXUL = this.hasResource("options.xul");
+    let hasOptionsURL = !!this.optionsURL;
+
+    if (addon.optionsType) {
+      switch (parseInt(addon.optionsType, 10)) {
+      case AddonManager.OPTIONS_TYPE_DIALOG:
+      case AddonManager.OPTIONS_TYPE_TAB:
+        return hasOptionsURL ? addon.optionsType : null;
+      case AddonManager.OPTIONS_TYPE_INLINE:
+      case AddonManager.OPTIONS_TYPE_INLINE_INFO:
+      case AddonManager.OPTIONS_TYPE_INLINE_BROWSER:
+        return (hasOptionsXUL || hasOptionsURL) ? addon.optionsType : null;
+      }
+      return null;
+    }
+
+    if (hasOptionsXUL)
+      return AddonManager.OPTIONS_TYPE_INLINE;
+
+    if (hasOptionsURL)
+      return AddonManager.OPTIONS_TYPE_DIALOG;
+
+    return null;
+  },
+
+  get iconURL() {
+    return AddonManager.getPreferredIconURL(this, 48);
+  },
+
+  get icon64URL() {
+    return AddonManager.getPreferredIconURL(this, 64);
+  },
+
+  get icons() {
+    let addon = addonFor(this);
+    let icons = {};
+
+    if (addon._repositoryAddon) {
+      for (let size in addon._repositoryAddon.icons) {
+        icons[size] = addon._repositoryAddon.icons[size];
+      }
+    }
+
+    if (addon.icons) {
+      for (let size in addon.icons) {
+        icons[size] = this.getResourceURI(addon.icons[size]).spec;
+      }
+    } else {
+      // legacy add-on that did not update its icon data yet
+      if (this.hasResource("icon.png")) {
+        icons[32] = icons[48] = this.getResourceURI("icon.png").spec;
+      }
+      if (this.hasResource("icon64.png")) {
+        icons[64] = this.getResourceURI("icon64.png").spec;
+      }
+    }
+
+    if (this.isActive && addon.iconURL) {
+      icons[32] = addon.iconURL;
+      icons[48] = addon.iconURL;
+    }
+
+    if (this.isActive && addon.icon64URL) {
+      icons[64] = addon.icon64URL;
+    }
+
+    Object.freeze(icons);
+    return icons;
+  },
+
+  get screenshots() {
+    let addon = addonFor(this);
+    let repositoryAddon = addon._repositoryAddon;
+    if (repositoryAddon && ("screenshots" in repositoryAddon)) {
+      let repositoryScreenshots = repositoryAddon.screenshots;
+      if (repositoryScreenshots && repositoryScreenshots.length > 0)
+        return repositoryScreenshots;
+    }
+
+    if (addon.type == "theme" && this.hasResource("preview.png")) {
+      let url = this.getResourceURI("preview.png").spec;
+      return [new AddonManagerPrivate.AddonScreenshot(url)];
+    }
+
+    return null;
+  },
+
+  get applyBackgroundUpdates() {
+    return addonFor(this).applyBackgroundUpdates;
+  },
+  set applyBackgroundUpdates(val) {
+    let addon = addonFor(this);
+    if (this.type == "experiment") {
+      logger.warn("Setting applyBackgroundUpdates on an experiment is not supported.");
+      return addon.applyBackgroundUpdates;
+    }
+
+    if (val != AddonManager.AUTOUPDATE_DEFAULT &&
+        val != AddonManager.AUTOUPDATE_DISABLE &&
+        val != AddonManager.AUTOUPDATE_ENABLE) {
+      val = val ? AddonManager.AUTOUPDATE_DEFAULT :
+                  AddonManager.AUTOUPDATE_DISABLE;
+    }
+
+    if (val == addon.applyBackgroundUpdates)
+      return val;
+
+    XPIDatabase.setAddonProperties(addon, {
+      applyBackgroundUpdates: val
+    });
+    AddonManagerPrivate.callAddonListeners("onPropertyChanged", this, ["applyBackgroundUpdates"]);
+
+    return val;
+  },
+
+  set syncGUID(val) {
+    let addon = addonFor(this);
+    if (addon.syncGUID == val)
+      return val;
+
+    if (addon.inDatabase)
+      XPIDatabase.setAddonSyncGUID(addon, val);
+
+    addon.syncGUID = val;
+
+    return val;
+  },
+
+  get install() {
+    let addon = addonFor(this);
+    if (!("_install" in addon) || !addon._install)
+      return null;
+    return addon._install.wrapper;
+  },
+
+  get pendingUpgrade() {
+    let addon = addonFor(this);
+    return addon.pendingUpgrade ? addon.pendingUpgrade.wrapper : null;
+  },
+
+  get scope() {
+    let addon = addonFor(this);
+    if (addon._installLocation)
+      return addon._installLocation.scope;
+
+    return AddonManager.SCOPE_PROFILE;
+  },
+
+  get pendingOperations() {
+    let addon = addonFor(this);
+    let pending = 0;
+    if (!(addon.inDatabase)) {
+      // Add-on is pending install if there is no associated install (shouldn't
+      // happen here) or if the install is in the process of or has successfully
+      // completed the install. If an add-on is pending install then we ignore
+      // any other pending operations.
+      if (!addon._install || addon._install.state == AddonManager.STATE_INSTALLING ||
+          addon._install.state == AddonManager.STATE_INSTALLED)
+        return AddonManager.PENDING_INSTALL;
+    }
+    else if (addon.pendingUninstall) {
+      // If an add-on is pending uninstall then we ignore any other pending
+      // operations
+      return AddonManager.PENDING_UNINSTALL;
+    }
+
+    if (addon.active && addon.disabled)
+      pending |= AddonManager.PENDING_DISABLE;
+    else if (!addon.active && !addon.disabled)
+      pending |= AddonManager.PENDING_ENABLE;
+
+    if (addon.pendingUpgrade)
+      pending |= AddonManager.PENDING_UPGRADE;
+
+    return pending;
+  },
+
+  get operationsRequiringRestart() {
+    let addon = addonFor(this);
+    let ops = 0;
+    if (XPIProvider.installRequiresRestart(addon))
+      ops |= AddonManager.OP_NEEDS_RESTART_INSTALL;
+    if (XPIProvider.uninstallRequiresRestart(addon))
+      ops |= AddonManager.OP_NEEDS_RESTART_UNINSTALL;
+    if (XPIProvider.enableRequiresRestart(addon))
+      ops |= AddonManager.OP_NEEDS_RESTART_ENABLE;
+    if (XPIProvider.disableRequiresRestart(addon))
+      ops |= AddonManager.OP_NEEDS_RESTART_DISABLE;
+
+    return ops;
+  },
+
+  get isDebuggable() {
+    return this.isActive && addonFor(this).bootstrap;
+  },
+
+  get permissions() {
+    return addonFor(this).permissions();
+  },
+
+  get isActive() {
+    let addon = addonFor(this);
+    if (!addon.active)
+      return false;
+    if (!Services.appinfo.inSafeMode)
+      return true;
+    return addon.bootstrap && canRunInSafeMode(addon);
+  },
+
+  get userDisabled() {
+    let addon = addonFor(this);
+    return addon.softDisabled || addon.userDisabled;
+  },
+  set userDisabled(val) {
+    let addon = addonFor(this);
+    if (val == this.userDisabled) {
+      return val;
+    }
+
+    if (addon.inDatabase) {
+      if (addon.type == "theme" && val) {
+        if (addon.internalName == XPIProvider.defaultSkin)
+          throw new Error("Cannot disable the default theme");
+        XPIProvider.enableDefaultTheme();
+      }
+      else {
+        // hidden and system add-ons should not be user disasbled,
+        // as there is no UI to re-enable them.
+        if (this.hidden) {
+          throw new Error(`Cannot disable hidden add-on ${addon.id}`);
+        }
+        XPIProvider.updateAddonDisabledState(addon, val);
+      }
+    }
+    else {
+      addon.userDisabled = val;
+      // When enabling remove the softDisabled flag
+      if (!val)
+        addon.softDisabled = false;
+    }
+
+    return val;
+  },
+
+  set softDisabled(val) {
+    let addon = addonFor(this);
+    if (val == addon.softDisabled)
+      return val;
+
+    if (addon.inDatabase) {
+      // When softDisabling a theme just enable the active theme
+      if (addon.type == "theme" && val && !addon.userDisabled) {
+        if (addon.internalName == XPIProvider.defaultSkin)
+          throw new Error("Cannot disable the default theme");
+        XPIProvider.enableDefaultTheme();
+      }
+      else {
+        XPIProvider.updateAddonDisabledState(addon, undefined, val);
+      }
+    }
+    else if (!addon.userDisabled) {
+      // Only set softDisabled if not already disabled
+      addon.softDisabled = val;
+    }
+
+    return val;
+  },
+
+  get hidden() {
+    let addon = addonFor(this);
+    if (addon._installLocation.name == KEY_APP_TEMPORARY)
+      return false;
+
+    return (addon._installLocation.name == KEY_APP_SYSTEM_DEFAULTS ||
+            addon._installLocation.name == KEY_APP_SYSTEM_ADDONS);
+  },
+
+  get isSystem() {
+    let addon = addonFor(this);
+    return (addon._installLocation.name == KEY_APP_SYSTEM_DEFAULTS ||
+            addon._installLocation.name == KEY_APP_SYSTEM_ADDONS);
+  },
+
+  // Returns true if Firefox Sync should sync this addon. Only non-hotfixes
+  // directly in the profile are considered syncable.
+  get isSyncable() {
+    let addon = addonFor(this);
+    let hotfixID = Preferences.get(PREF_EM_HOTFIX_ID, undefined);
+    if (hotfixID && hotfixID == addon.id) {
+      return false;
+    }
+    return (addon._installLocation.name == KEY_APP_PROFILE);
+  },
+
+  isCompatibleWith: function(aAppVersion, aPlatformVersion) {
+    return addonFor(this).isCompatibleWith(aAppVersion, aPlatformVersion);
+  },
+
+  uninstall: function(alwaysAllowUndo) {
+    let addon = addonFor(this);
+    XPIProvider.uninstallAddon(addon, alwaysAllowUndo);
+  },
+
+  cancelUninstall: function() {
+    let addon = addonFor(this);
+    XPIProvider.cancelUninstallAddon(addon);
+  },
+
+  findUpdates: function(aListener, aReason, aAppVersion, aPlatformVersion) {
+    // Short-circuit updates for experiments because updates are handled
+    // through the Experiments Manager.
+    if (this.type == "experiment") {
+      AddonManagerPrivate.callNoUpdateListeners(this, aListener, aReason,
+                                                aAppVersion, aPlatformVersion);
+      return;
+    }
+
+    new UpdateChecker(addonFor(this), aListener, aReason, aAppVersion, aPlatformVersion);
+  },
+
+  // Returns true if there was an update in progress, false if there was no update to cancel
+  cancelUpdate: function() {
+    let addon = addonFor(this);
+    if (addon._updateCheck) {
+      addon._updateCheck.cancel();
+      return true;
+    }
+    return false;
+  },
+
+  hasResource: function(aPath) {
+    let addon = addonFor(this);
+    if (addon._hasResourceCache.has(aPath))
+      return addon._hasResourceCache.get(aPath);
+
+    let bundle = addon._sourceBundle.clone();
+
+    // Bundle may not exist any more if the addon has just been uninstalled,
+    // but explicitly first checking .exists() results in unneeded file I/O.
+    try {
+      var isDir = bundle.isDirectory();
+    } catch (e) {
+      addon._hasResourceCache.set(aPath, false);
+      return false;
+    }
+
+    if (isDir) {
+      if (aPath)
+        aPath.split("/").forEach(part => bundle.append(part));
+      let result = bundle.exists();
+      addon._hasResourceCache.set(aPath, result);
+      return result;
+    }
+
+    let zipReader = Cc["@mozilla.org/libjar/zip-reader;1"].
+                    createInstance(Ci.nsIZipReader);
+    try {
+      zipReader.open(bundle);
+      let result = zipReader.hasEntry(aPath);
+      addon._hasResourceCache.set(aPath, result);
+      return result;
+    }
+    catch (e) {
+      addon._hasResourceCache.set(aPath, false);
+      return false;
+    }
+    finally {
+      zipReader.close();
+    }
+  },
+
+  /**
+   * Reloads the add-on.
+   *
+   * For temporarily installed add-ons, this uninstalls and re-installs the
+   * add-on. Otherwise, the addon is disabled and then re-enabled, and the cache
+   * is flushed.
+   *
+   * @return Promise
+   */
+  reload: function() {
+    return new Promise((resolve) => {
+      const addon = addonFor(this);
+
+      logger.debug(`reloading add-on ${addon.id}`);
+
+      if (!this.temporarilyInstalled) {
+        let addonFile = addon.getResourceURI;
+        XPIProvider.updateAddonDisabledState(addon, true);
+        Services.obs.notifyObservers(addonFile, "flush-cache-entry", null);
+        XPIProvider.updateAddonDisabledState(addon, false)
+        resolve();
+      } else {
+        // This function supports re-installing an existing add-on.
+        resolve(AddonManager.installTemporaryAddon(addon._sourceBundle));
+      }
+    });
+  },
+
+  /**
+   * Returns a URI to the selected resource or to the add-on bundle if aPath
+   * is null. URIs to the bundle will always be file: URIs. URIs to resources
+   * will be file: URIs if the add-on is unpacked or jar: URIs if the add-on is
+   * still an XPI file.
+   *
+   * @param  aPath
+   *         The path in the add-on to get the URI for or null to get a URI to
+   *         the file or directory the add-on is installed as.
+   * @return an nsIURI
+   */
+  getResourceURI: function(aPath) {
+    let addon = addonFor(this);
+    if (!aPath)
+      return NetUtil.newURI(addon._sourceBundle);
+
+    return getURIForResourceInFile(addon._sourceBundle, aPath);
+  }
+};
+
+/**
+ * The PrivateWrapper is used to expose certain functionality only when being
+ * called with the add-on instanceID, disallowing other add-ons to access it.
+ */
+function PrivateWrapper(aAddon) {
+  AddonWrapper.call(this, aAddon);
+}
+
+PrivateWrapper.prototype = Object.create(AddonWrapper.prototype);
+Object.assign(PrivateWrapper.prototype, {
+  addonId() {
+    return this.id;
+  },
+
+  /**
+   * Retrieves the preferred global context to be used from the
+   * add-on debugging window.
+   *
+   * @returns  global
+   *         The object set as global context. Must be a window object.
+   */
+  getDebugGlobal(global) {
+    let activeAddon = XPIProvider.activeAddons.get(this.id);
+    if (activeAddon) {
+      return activeAddon.debugGlobal;
+    }
+
+    return null;
+  },
+
+  /**
+   * Defines a global context to be used in the console
+   * of the add-on debugging window.
+   *
+   * @param  global
+   *         The object to set as global context. Must be a window object.
+   */
+  setDebugGlobal(global) {
+    if (!global) {
+      // If the new global is null, notify the listeners regardless
+      // from the current state of the addon.
+      // NOTE: this happen after the addon has been disabled and
+      // the global will never be set to null otherwise.
+      AddonManagerPrivate.callAddonListeners("onPropertyChanged",
+                                             addonFor(this),
+                                             ["debugGlobal"]);
+    } else {
+      let activeAddon = XPIProvider.activeAddons.get(this.id);
+      if (activeAddon) {
+        let globalChanged = activeAddon.debugGlobal != global;
+        activeAddon.debugGlobal = global;
+
+        if (globalChanged) {
+          AddonManagerPrivate.callAddonListeners("onPropertyChanged",
+                                                 addonFor(this),
+                                                 ["debugGlobal"]);
+        }
+      }
+    }
+  }
+});
+
+function chooseValue(aAddon, aObj, aProp) {
+  let repositoryAddon = aAddon._repositoryAddon;
+  let objValue = aObj[aProp];
+
+  if (repositoryAddon && (aProp in repositoryAddon) &&
+      (objValue === undefined || objValue === null)) {
+    return [repositoryAddon[aProp], true];
+  }
+
+  return [objValue, false];
+}
+
+function defineAddonWrapperProperty(name, getter) {
+  Object.defineProperty(AddonWrapper.prototype, name, {
+    get: getter,
+    enumerable: true,
+  });
+}
+
+["id", "syncGUID", "version", "isCompatible", "isPlatformCompatible",
+ "providesUpdatesSecurely", "blocklistState", "blocklistURL", "appDisabled",
+ "softDisabled", "skinnable", "size", "foreignInstall", "hasBinaryComponents",
+ "strictCompatibility", "compatibilityOverrides", "updateURL", "dependencies",
+ "getDataDirectory", "multiprocessCompatible", "signedState", "mpcOptedOut",
+ "isCorrectlySigned"].forEach(function(aProp) {
+   defineAddonWrapperProperty(aProp, function() {
+     let addon = addonFor(this);
+     return (aProp in addon) ? addon[aProp] : undefined;
+   });
+});
+
+["fullDescription", "developerComments", "eula", "supportURL",
+ "contributionURL", "contributionAmount", "averageRating", "reviewCount",
+ "reviewURL", "totalDownloads", "weeklyDownloads", "dailyUsers",
+ "repositoryStatus"].forEach(function(aProp) {
+  defineAddonWrapperProperty(aProp, function() {
+    let addon = addonFor(this);
+    if (addon._repositoryAddon)
+      return addon._repositoryAddon[aProp];
+
+    return null;
+  });
+});
+
+["installDate", "updateDate"].forEach(function(aProp) {
+  defineAddonWrapperProperty(aProp, function() {
+    return new Date(addonFor(this)[aProp]);
+  });
+});
+
+["sourceURI", "releaseNotesURI"].forEach(function(aProp) {
+  defineAddonWrapperProperty(aProp, function() {
+    let addon = addonFor(this);
+
+    // Temporary Installed Addons do not have a "sourceURI",
+    // But we can use the "_sourceBundle" as an alternative,
+    // which points to the path of the addon xpi installed
+    // or its source dir (if it has been installed from a
+    // directory).
+    if (aProp == "sourceURI" && this.temporarilyInstalled) {
+      return Services.io.newFileURI(addon._sourceBundle);
+    }
+
+    let [target, fromRepo] = chooseValue(addon, addon, aProp);
+    if (!target)
+      return null;
+    if (fromRepo)
+      return target;
+    return NetUtil.newURI(target);
+  });
+});
+
+PROP_LOCALE_SINGLE.forEach(function(aProp) {
+  defineAddonWrapperProperty(aProp, function() {
+    let addon = addonFor(this);
+    // Override XPI creator if repository creator is defined
+    if (aProp == "creator" &&
+        addon._repositoryAddon && addon._repositoryAddon.creator) {
+      return addon._repositoryAddon.creator;
+    }
+
+    let result = null;
+
+    if (addon.active) {
+      try {
+        let pref = PREF_EM_EXTENSION_FORMAT + addon.id + "." + aProp;
+        let value = Preferences.get(pref, null, Ci.nsIPrefLocalizedString);
+        if (value)
+          result = value;
+      }
+      catch (e) {
+      }
+    }
+
+    let rest;
+    if (result == null)
+      [result, ...rest] = chooseValue(addon, addon.selectedLocale, aProp);
+
+    if (aProp == "creator")
+      return result ? new AddonManagerPrivate.AddonAuthor(result) : null;
+
+    return result;
+  });
+});
+
+PROP_LOCALE_MULTI.forEach(function(aProp) {
+  defineAddonWrapperProperty(aProp, function() {
+    let addon = addonFor(this);
+    let results = null;
+    let usedRepository = false;
+
+    if (addon.active) {
+      let pref = PREF_EM_EXTENSION_FORMAT + addon.id + "." +
+                 aProp.substring(0, aProp.length - 1);
+      let list = Services.prefs.getChildList(pref, {});
+      if (list.length > 0) {
+        list.sort();
+        results = [];
+        for (let childPref of list) {
+          let value = Preferences.get(childPref, null, Ci.nsIPrefLocalizedString);
+          if (value)
+            results.push(value);
+        }
+      }
+    }
+
+    if (results == null)
+      [results, usedRepository] = chooseValue(addon, addon.selectedLocale, aProp);
+
+    if (results && !usedRepository) {
+      results = results.map(function(aResult) {
+        return new AddonManagerPrivate.AddonAuthor(aResult);
+      });
+    }
+
+    return results;
+  });
+});
+
+/**
+ * An object which identifies a directory install location for add-ons. The
+ * location consists of a directory which contains the add-ons installed in the
+ * location.
+ *
+ * Each add-on installed in the location is either a directory containing the
+ * add-on's files or a text file containing an absolute path to the directory
+ * containing the add-ons files. The directory or text file must have the same
+ * name as the add-on's ID.
+ *
+ * @param  aName
+ *         The string identifier for the install location
+ * @param  aDirectory
+ *         The nsIFile directory for the install location
+ * @param  aScope
+ *         The scope of add-ons installed in this location
+ */
+function DirectoryInstallLocation(aName, aDirectory, aScope) {
+  this._name = aName;
+  this.locked = true;
+  this._directory = aDirectory;
+  this._scope = aScope
+  this._IDToFileMap = {};
+  this._linkedAddons = [];
+
+  if (!aDirectory || !aDirectory.exists())
+    return;
+  if (!aDirectory.isDirectory())
+    throw new Error("Location must be a directory.");
+
+  this._readAddons();
+}
+
+DirectoryInstallLocation.prototype = {
+  _name       : "",
+  _directory   : null,
+  _IDToFileMap : null,  // mapping from add-on ID to nsIFile
+
+  /**
+   * Reads a directory linked to in a file.
+   *
+   * @param   file
+   *          The file containing the directory path
+   * @return  An nsIFile object representing the linked directory.
+   */
+  _readDirectoryFromFile: function(aFile) {
+    let linkedDirectory;
+    if (aFile.isSymlink()) {
+      linkedDirectory = aFile.clone();
+      try {
+        linkedDirectory.normalize();
+      } catch (e) {
+        logger.warn("Symbolic link " + aFile.path + " points to a path" +
+             " which does not exist");
+        return null;
+      }
+    }
+    else {
+      let fis = Cc["@mozilla.org/network/file-input-stream;1"].
+                createInstance(Ci.nsIFileInputStream);
+      fis.init(aFile, -1, -1, false);
+      let line = { value: "" };
+      if (fis instanceof Ci.nsILineInputStream)
+        fis.readLine(line);
+      fis.close();
+      if (line.value) {
+        linkedDirectory = Cc["@mozilla.org/file/local;1"].
+                              createInstance(Ci.nsIFile);
+
+        try {
+          linkedDirectory.initWithPath(line.value);
+        }
+        catch (e) {
+          linkedDirectory.setRelativeDescriptor(aFile.parent, line.value);
+        }
+      }
+    }
+
+    if (linkedDirectory) {
+      if (!linkedDirectory.exists()) {
+        logger.warn("File pointer " + aFile.path + " points to " + linkedDirectory.path +
+             " which does not exist");
+        return null;
+      }
+
+      if (!linkedDirectory.isDirectory()) {
+        logger.warn("File pointer " + aFile.path + " points to " + linkedDirectory.path +
+             " which is not a directory");
+        return null;
+      }
+
+      return linkedDirectory;
+    }
+
+    logger.warn("File pointer " + aFile.path + " does not contain a path");
+    return null;
+  },
+
+  /**
+   * Finds all the add-ons installed in this location.
+   */
+  _readAddons: function() {
+    // Use a snapshot of the directory contents to avoid possible issues with
+    // iterating over a directory while removing files from it (the YAFFS2
+    // embedded filesystem has this issue, see bug 772238).
+    let entries = getDirectoryEntries(this._directory);
+    for (let entry of entries) {
+      let id = entry.leafName;
+
+      if (id == DIR_STAGE || id == DIR_TRASH)
+        continue;
+
+      let directLoad = false;
+      if (entry.isFile() &&
+          id.substring(id.length - 4).toLowerCase() == ".xpi") {
+        directLoad = true;
+        id = id.substring(0, id.length - 4);
+      }
+
+      if (!gIDTest.test(id)) {
+        logger.debug("Ignoring file entry whose name is not a valid add-on ID: " +
+             entry.path);
+        continue;
+      }
+
+      if (!directLoad && (entry.isFile() || entry.isSymlink())) {
+        let newEntry = this._readDirectoryFromFile(entry);
+        if (!newEntry) {
+          logger.debug("Deleting stale pointer file " + entry.path);
+          try {
+            entry.remove(true);
+          }
+          catch (e) {
+            logger.warn("Failed to remove stale pointer file " + entry.path, e);
+            // Failing to remove the stale pointer file is ignorable
+          }
+          continue;
+        }
+
+        entry = newEntry;
+        this._linkedAddons.push(id);
+      }
+
+      this._IDToFileMap[id] = entry;
+      XPIProvider._addURIMapping(id, entry);
+    }
+  },
+
+  /**
+   * Gets the name of this install location.
+   */
+  get name() {
+    return this._name;
+  },
+
+  /**
+   * Gets the scope of this install location.
+   */
+  get scope() {
+    return this._scope;
+  },
+
+  /**
+   * Gets an array of nsIFiles for add-ons installed in this location.
+   */
+  getAddonLocations: function() {
+    let locations = new Map();
+    for (let id in this._IDToFileMap) {
+      locations.set(id, this._IDToFileMap[id].clone());
+    }
+    return locations;
+  },
+
+  /**
+   * Gets the directory that the add-on with the given ID is installed in.
+   *
+   * @param  aId
+   *         The ID of the add-on
+   * @return The nsIFile
+   * @throws if the ID does not match any of the add-ons installed
+   */
+  getLocationForID: function(aId) {
+    if (aId in this._IDToFileMap)
+      return this._IDToFileMap[aId].clone();
+    throw new Error("Unknown add-on ID " + aId);
+  },
+
+  /**
+   * Returns true if the given addon was installed in this location by a text
+   * file pointing to its real path.
+   *
+   * @param aId
+   *        The ID of the addon
+   */
+  isLinkedAddon: function(aId) {
+    return this._linkedAddons.indexOf(aId) != -1;
+  }
+};
+
+/**
+ * An extension of DirectoryInstallLocation which adds methods to installing
+ * and removing add-ons from the directory at runtime.
+ *
+ * @param  aName
+ *         The string identifier for the install location
+ * @param  aDirectory
+ *         The nsIFile directory for the install location
+ * @param  aScope
+ *         The scope of add-ons installed in this location
+ */
+function MutableDirectoryInstallLocation(aName, aDirectory, aScope) {
+  DirectoryInstallLocation.call(this, aName, aDirectory, aScope);
+  this.locked = false;
+  this._stagingDirLock = 0;
+}
+
+MutableDirectoryInstallLocation.prototype = Object.create(DirectoryInstallLocation.prototype);
+Object.assign(MutableDirectoryInstallLocation.prototype, {
+  /**
+   * Gets the staging directory to put add-ons that are pending install and
+   * uninstall into.
+   *
+   * @return an nsIFile
+   */
+  getStagingDir: function() {
+    let dir = this._directory.clone();
+    dir.append(DIR_STAGE);
+    return dir;
+  },
+
+  requestStagingDir: function() {
+    this._stagingDirLock++;
+
+    if (this._stagingDirPromise)
+      return this._stagingDirPromise;
+
+    OS.File.makeDir(this._directory.path);
+    let stagepath = OS.Path.join(this._directory.path, DIR_STAGE);
+    return this._stagingDirPromise = OS.File.makeDir(stagepath).then(null, (e) => {
+      if (e instanceof OS.File.Error && e.becauseExists)
+        return;
+      logger.error("Failed to create staging directory", e);
+      throw e;
+    });
+  },
+
+  releaseStagingDir: function() {
+    this._stagingDirLock--;
+
+    if (this._stagingDirLock == 0) {
+      this._stagingDirPromise = null;
+      this.cleanStagingDir();
+    }
+
+    return Promise.resolve();
+  },
+
+  /**
+   * Removes the specified files or directories in the staging directory and
+   * then if the staging directory is empty attempts to remove it.
+   *
+   * @param  aLeafNames
+   *         An array of file or directory to remove from the directory, the
+   *         array may be empty
+   */
+  cleanStagingDir: function(aLeafNames = []) {
+    let dir = this.getStagingDir();
+
+    for (let name of aLeafNames) {
+      let file = dir.clone();
+      file.append(name);
+      recursiveRemove(file);
+    }
+
+    if (this._stagingDirLock > 0)
+      return;
+
+    let dirEntries = dir.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
+    try {
+      if (dirEntries.nextFile)
+        return;
+    }
+    finally {
+      dirEntries.close();
+    }
+
+    try {
+      setFilePermissions(dir, FileUtils.PERMS_DIRECTORY);
+      dir.remove(false);
+    }
+    catch (e) {
+      logger.warn("Failed to remove staging dir", e);
+      // Failing to remove the staging directory is ignorable
+    }
+  },
+
+  /**
+   * Returns a directory that is normally on the same filesystem as the rest of
+   * the install location and can be used for temporarily storing files during
+   * safe move operations. Calling this method will delete the existing trash
+   * directory and its contents.
+   *
+   * @return an nsIFile
+   */
+  getTrashDir: function() {
+    let trashDir = this._directory.clone();
+    trashDir.append(DIR_TRASH);
+    let trashDirExists = trashDir.exists();
+    try {
+      if (trashDirExists)
+        recursiveRemove(trashDir);
+      trashDirExists = false;
+    } catch (e) {
+      logger.warn("Failed to remove trash directory", e);
+    }
+    if (!trashDirExists)
+      trashDir.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+
+    return trashDir;
+  },
+
+  /**
+   * Installs an add-on into the install location.
+   *
+   * @param  id
+   *         The ID of the add-on to install
+   * @param  source
+   *         The source nsIFile to install from
+   * @param  existingAddonID
+   *         The ID of an existing add-on to uninstall at the same time
+   * @param  action
+   *         What to we do with the given source file:
+   *           "move"
+   *           Default action, the source files will be moved to the new
+   *           location,
+   *           "copy"
+   *           The source files will be copied,
+   *           "proxy"
+   *           A "proxy file" is going to refer to the source file path
+   * @return an nsIFile indicating where the add-on was installed to
+   */
+  installAddon: function({ id, source, existingAddonID, action = "move" }) {
+    let trashDir = this.getTrashDir();
+
+    let transaction = new SafeInstallOperation();
+
+    let moveOldAddon = aId => {
+      let file = this._directory.clone();
+      file.append(aId);
+
+      if (file.exists())
+        transaction.moveUnder(file, trashDir);
+
+      file = this._directory.clone();
+      file.append(aId + ".xpi");
+      if (file.exists()) {
+        flushJarCache(file);
+        transaction.moveUnder(file, trashDir);
+      }
+    }
+
+    // If any of these operations fails the finally block will clean up the
+    // temporary directory
+    try {
+      moveOldAddon(id);
+      if (existingAddonID && existingAddonID != id) {
+        moveOldAddon(existingAddonID);
+
+        {
+          // Move the data directories.
+          /* XXX ajvincent We can't use OS.File:  installAddon isn't compatible
+           * with Promises, nor is SafeInstallOperation.  Bug 945540 has been filed
+           * for porting to OS.File.
+           */
+          let oldDataDir = FileUtils.getDir(
+            KEY_PROFILEDIR, ["extension-data", existingAddonID], false, true
+          );
+
+          if (oldDataDir.exists()) {
+            let newDataDir = FileUtils.getDir(
+              KEY_PROFILEDIR, ["extension-data", id], false, true
+            );
+            if (newDataDir.exists()) {
+              let trashData = trashDir.clone();
+              trashData.append("data-directory");
+              transaction.moveUnder(newDataDir, trashData);
+            }
+
+            transaction.moveTo(oldDataDir, newDataDir);
+          }
+        }
+      }
+
+      if (action == "copy") {
+        transaction.copy(source, this._directory);
+      }
+      else if (action == "move") {
+        if (source.isFile())
+          flushJarCache(source);
+
+        transaction.moveUnder(source, this._directory);
+      }
+      // Do nothing for the proxy file as we sideload an addon permanently
+    }
+    finally {
+      // It isn't ideal if this cleanup fails but it isn't worth rolling back
+      // the install because of it.
+      try {
+        recursiveRemove(trashDir);
+      }
+      catch (e) {
+        logger.warn("Failed to remove trash directory when installing " + id, e);
+      }
+    }
+
+    let newFile = this._directory.clone();
+
+    if (action == "proxy") {
+      // When permanently installing sideloaded addon, we just put a proxy file
+      // refering to the addon sources
+      newFile.append(id);
+
+      writeStringToFile(newFile, source.path);
+    } else {
+      newFile.append(source.leafName);
+    }
+
+    try {
+      newFile.lastModifiedTime = Date.now();
+    } catch (e)  {
+      logger.warn("failed to set lastModifiedTime on " + newFile.path, e);
+    }
+    this._IDToFileMap[id] = newFile;
+    XPIProvider._addURIMapping(id, newFile);
+
+    if (existingAddonID && existingAddonID != id &&
+        existingAddonID in this._IDToFileMap) {
+      delete this._IDToFileMap[existingAddonID];
+    }
+
+    return newFile;
+  },
+
+  /**
+   * Uninstalls an add-on from this location.
+   *
+   * @param  aId
+   *         The ID of the add-on to uninstall
+   * @throws if the ID does not match any of the add-ons installed
+   */
+  uninstallAddon: function(aId) {
+    let file = this._IDToFileMap[aId];
+    if (!file) {
+      logger.warn("Attempted to remove " + aId + " from " +
+           this._name + " but it was already gone");
+      return;
+    }
+
+    file = this._directory.clone();
+    file.append(aId);
+    if (!file.exists())
+      file.leafName += ".xpi";
+
+    if (!file.exists()) {
+      logger.warn("Attempted to remove " + aId + " from " +
+           this._name + " but it was already gone");
+
+      delete this._IDToFileMap[aId];
+      return;
+    }
+
+    let trashDir = this.getTrashDir();
+
+    if (file.leafName != aId) {
+      logger.debug("uninstallAddon: flushing jar cache " + file.path + " for addon " + aId);
+      flushJarCache(file);
+    }
+
+    let transaction = new SafeInstallOperation();
+
+    try {
+      transaction.moveUnder(file, trashDir);
+    }
+    finally {
+      // It isn't ideal if this cleanup fails, but it is probably better than
+      // rolling back the uninstall at this point
+      try {
+        recursiveRemove(trashDir);
+      }
+      catch (e) {
+        logger.warn("Failed to remove trash directory when uninstalling " + aId, e);
+      }
+    }
+
+    delete this._IDToFileMap[aId];
+  },
+});
+
+/**
+ * An object which identifies a directory install location for system add-ons
+ * upgrades.
+ *
+ * The location consists of a directory which contains the add-ons installed.
+ *
+ * @param  aName
+ *         The string identifier for the install location
+ * @param  aDirectory
+ *         The nsIFile directory for the install location
+ * @param  aScope
+ *         The scope of add-ons installed in this location
+ * @param  aResetSet
+ *         True to throw away the current add-on set
+ */
+function SystemAddonInstallLocation(aName, aDirectory, aScope, aResetSet) {
+  this._baseDir = aDirectory;
+  this._nextDir = null;
+
+  this._stagingDirLock = 0;
+
+  if (aResetSet)
+    this.resetAddonSet();
+
+  this._addonSet = this._loadAddonSet();
+
+  this._directory = null;
+  if (this._addonSet.directory) {
+    this._directory = aDirectory.clone();
+    this._directory.append(this._addonSet.directory);
+    logger.info("SystemAddonInstallLocation scanning directory " + this._directory.path);
+  }
+  else {
+    logger.info("SystemAddonInstallLocation directory is missing");
+  }
+
+  DirectoryInstallLocation.call(this, aName, this._directory, aScope);
+  this.locked = false;
+}
+
+SystemAddonInstallLocation.prototype = Object.create(DirectoryInstallLocation.prototype);
+Object.assign(SystemAddonInstallLocation.prototype, {
+  /**
+   * Removes the specified files or directories in the staging directory and
+   * then if the staging directory is empty attempts to remove it.
+   *
+   * @param  aLeafNames
+   *         An array of file or directory to remove from the directory, the
+   *         array may be empty
+   */
+  cleanStagingDir: function(aLeafNames = []) {
+    let dir = this.getStagingDir();
+
+    for (let name of aLeafNames) {
+      let file = dir.clone();
+      file.append(name);
+      recursiveRemove(file);
+    }
+
+    if (this._stagingDirLock > 0)
+      return;
+
+    let dirEntries = dir.directoryEntries.QueryInterface(Ci.nsIDirectoryEnumerator);
+    try {
+      if (dirEntries.nextFile)
+        return;
+    }
+    finally {
+      dirEntries.close();
+    }
+
+    try {
+      setFilePermissions(dir, FileUtils.PERMS_DIRECTORY);
+      dir.remove(false);
+    }
+    catch (e) {
+      logger.warn("Failed to remove staging dir", e);
+      // Failing to remove the staging directory is ignorable
+    }
+  },
+
+  /**
+   * Gets the staging directory to put add-ons that are pending install and
+   * uninstall into.
+   *
+   * @return {nsIFile} - staging directory for system add-on upgrades.
+   */
+  getStagingDir: function() {
+    this._addonSet = this._loadAddonSet();
+    let dir = null;
+    if (this._addonSet.directory) {
+      this._directory = this._baseDir.clone();
+      this._directory.append(this._addonSet.directory);
+      dir = this._directory.clone();
+      dir.append(DIR_STAGE);
+    }
+    else {
+      logger.info("SystemAddonInstallLocation directory is missing");
+    }
+
+    return dir;
+  },
+
+  requestStagingDir: function() {
+    this._stagingDirLock++;
+    if (this._stagingDirPromise)
+      return this._stagingDirPromise;
+
+    this._addonSet = this._loadAddonSet();
+    if (this._addonSet.directory) {
+      this._directory = this._baseDir.clone();
+      this._directory.append(this._addonSet.directory);
+    }
+
+    OS.File.makeDir(this._directory.path);
+    let stagepath = OS.Path.join(this._directory.path, DIR_STAGE);
+    return this._stagingDirPromise = OS.File.makeDir(stagepath).then(null, (e) => {
+      if (e instanceof OS.File.Error && e.becauseExists)
+        return;
+      logger.error("Failed to create staging directory", e);
+      throw e;
+    });
+  },
+
+  releaseStagingDir: function() {
+    this._stagingDirLock--;
+
+    if (this._stagingDirLock == 0) {
+      this._stagingDirPromise = null;
+      this.cleanStagingDir();
+    }
+
+    return Promise.resolve();
+  },
+
+  /**
+   * Reads the current set of system add-ons
+   */
+  _loadAddonSet: function() {
+    try {
+      let setStr = Preferences.get(PREF_SYSTEM_ADDON_SET, null);
+      if (setStr) {
+        let addonSet = JSON.parse(setStr);
+        if ((typeof addonSet == "object") && addonSet.schema == 1)
+          return addonSet;
+      }
+    }
+    catch (e) {
+      logger.error("Malformed system add-on set, resetting.");
+    }
+
+    return { schema: 1, addons: {} };
+  },
+
+  /**
+   * Saves the current set of system add-ons
+   *
+   * @param {Object} aAddonSet - object containing schema, directory and set
+   *                 of system add-on IDs and versions.
+   */
+  _saveAddonSet: function(aAddonSet) {
+    Preferences.set(PREF_SYSTEM_ADDON_SET, JSON.stringify(aAddonSet));
+  },
+
+  getAddonLocations: function() {
+    // Updated system add-ons are ignored in safe mode
+    if (Services.appinfo.inSafeMode)
+      return new Map();
+
+    let addons = DirectoryInstallLocation.prototype.getAddonLocations.call(this);
+
+    // Strip out any unexpected add-ons from the list
+    for (let id of addons.keys()) {
+      if (!(id in this._addonSet.addons))
+        addons.delete(id);
+    }
+
+    return addons;
+  },
+
+  /**
+   * Tests whether updated system add-ons are expected.
+   */
+  isActive: function() {
+    return this._directory != null;
+  },
+
+  isValidAddon: function(aAddon) {
+    if (aAddon.appDisabled) {
+      logger.warn(`System add-on ${aAddon.id} isn't compatible with the application.`);
+      return false;
+    }
+
+    if (aAddon.unpack) {
+      logger.warn(`System add-on ${aAddon.id} isn't a packed add-on.`);
+      return false;
+    }
+
+    if (!aAddon.bootstrap) {
+      logger.warn(`System add-on ${aAddon.id} isn't restartless.`);
+      return false;
+    }
+
+    if (!aAddon.multiprocessCompatible) {
+      logger.warn(`System add-on ${aAddon.id} isn't multiprocess compatible.`);
+      return false;
+    }
+
+    return true;
+  },
+
+  /**
+   * Tests whether the loaded add-on information matches what is expected.
+   */
+  isValid: function(aAddons) {
+    for (let id of Object.keys(this._addonSet.addons)) {
+      if (!aAddons.has(id)) {
+        logger.warn(`Expected add-on ${id} is missing from the system add-on location.`);
+        return false;
+      }
+
+      let addon = aAddons.get(id);
+      if (addon.version != this._addonSet.addons[id].version) {
+        logger.warn(`Expected system add-on ${id} to be version ${this._addonSet.addons[id].version} but was ${addon.version}.`);
+        return false;
+      }
+
+      if (!this.isValidAddon(addon))
+        return false;
+    }
+
+    return true;
+  },
+
+  /**
+   * Resets the add-on set so on the next startup the default set will be used.
+   */
+  resetAddonSet: function() {
+
+    if (this._addonSet) {
+      logger.info("Removing all system add-on upgrades.");
+
+      // remove everything from the pref first, if uninstall
+      // fails then at least they will not be re-activated on
+      // next restart.
+      this._saveAddonSet({ schema: 1, addons: {} });
+
+      for (let id of Object.keys(this._addonSet.addons)) {
+        AddonManager.getAddonByID(id, addon => {
+          if (addon) {
+            addon.uninstall();
+          }
+        });
+      }
+    }
+  },
+
+  /**
+   * Removes any directories not currently in use or pending use after a
+   * restart. Any errors that happen here don't really matter as we'll attempt
+   * to cleanup again next time.
+   */
+  cleanDirectories: Task.async(function*() {
+
+    // System add-ons directory does not exist
+    if (!(yield OS.File.exists(this._baseDir.path))) {
+      return;
+    }
+
+    let iterator;
+    try {
+      iterator = new OS.File.DirectoryIterator(this._baseDir.path);
+    }
+    catch (e) {
+      logger.error("Failed to clean updated system add-ons directories.", e);
+      return;
+    }
+
+    try {
+      let entries = [];
+
+      yield iterator.forEach(entry => {
+        // Skip the directory currently in use
+        if (this._directory && this._directory.path == entry.path)
+          return;
+
+        // Skip the next directory
+        if (this._nextDir && this._nextDir.path == entry.path)
+          return;
+
+        entries.push(entry);
+      });
+
+      for (let entry of entries) {
+        if (entry.isDir) {
+          yield OS.File.removeDir(entry.path, {
+            ignoreAbsent: true,
+            ignorePermissions: true,
+          });
+        }
+        else {
+          yield OS.File.remove(entry.path, {
+            ignoreAbsent: true,
+          });
+        }
+      }
+    }
+    catch (e) {
+      logger.error("Failed to clean updated system add-ons directories.", e);
+    }
+    finally {
+      iterator.close();
+    }
+  }),
+
+  /**
+   * Installs a new set of system add-ons into the location and updates the
+   * add-on set in prefs.
+   *
+   * @param {Array} aAddons - An array of addons to install.
+   */
+  installAddonSet: Task.async(function*(aAddons) {
+    // Make sure the base dir exists
+    yield OS.File.makeDir(this._baseDir.path, { ignoreExisting: true });
+
+    let addonSet = this._loadAddonSet();
+
+    // Remove any add-ons that are no longer part of the set.
+    for (let addonID of Object.keys(addonSet.addons)) {
+      if (!aAddons.includes(addonID)) {
+        AddonManager.getAddonByID(addonID, a => a.uninstall());
+      }
+    }
+
+    let newDir = this._baseDir.clone();
+
+    let uuidGen = Cc["@mozilla.org/uuid-generator;1"].
+                  getService(Ci.nsIUUIDGenerator);
+    newDir.append("blank");
+
+    while (true) {
+      newDir.leafName = uuidGen.generateUUID().toString();
+
+      try {
+        yield OS.File.makeDir(newDir.path, { ignoreExisting: false });
+        break;
+      }
+      catch (e) {
+        logger.debug("Could not create new system add-on updates dir, retrying", e);
+      }
+    }
+
+    // Record the new upgrade directory.
+    let state = { schema: 1, directory: newDir.leafName, addons: {} };
+    this._saveAddonSet(state);
+
+    this._nextDir = newDir;
+    let location = this;
+
+    let installs = [];
+    for (let addon of aAddons) {
+      let install = yield createLocalInstall(addon._sourceBundle, location);
+      installs.push(install);
+    }
+
+    let installAddon = Task.async(function*(install) {
+      // Make the new install own its temporary file.
+      install.ownsTempFile = true;
+      install.install();
+    });
+
+    let postponeAddon = Task.async(function*(install) {
+      let resumeFn;
+      if (AddonManagerPrivate.hasUpgradeListener(install.addon.id)) {
+        logger.info(`system add-on ${install.addon.id} has an upgrade listener, postponing upgrade set until restart`);
+        resumeFn = () => {
+          logger.info(`${install.addon.id} has resumed a previously postponed addon set`);
+          install.installLocation.resumeAddonSet(installs);
+        }
+      }
+      yield install.postpone(resumeFn);
+    });
+
+    let previousState;
+
+    try {
+      // All add-ons in position, create the new state and store it in prefs
+      state = { schema: 1, directory: newDir.leafName, addons: {} };
+      for (let addon of aAddons) {
+        state.addons[addon.id] = {
+          version: addon.version
+        }
+      }
+
+      previousState = this._loadAddonSet();
+      this._saveAddonSet(state);
+
+      let blockers = aAddons.filter(
+        addon => AddonManagerPrivate.hasUpgradeListener(addon.id)
+      );
+
+      if (blockers.length > 0) {
+        yield waitForAllPromises(installs.map(postponeAddon));
+      } else {
+        yield waitForAllPromises(installs.map(installAddon));
+      }
+    }
+    catch (e) {
+      // Roll back to previous upgrade set (if present) on restart.
+      if (previousState) {
+        this._saveAddonSet(previousState);
+      }
+      // Otherwise, roll back to built-in set on restart.
+      // TODO try to do these restartlessly
+      this.resetAddonSet();
+
+      try {
+        yield OS.File.removeDir(newDir.path, { ignorePermissions: true });
+      }
+      catch (e) {
+        logger.warn(`Failed to remove failed system add-on directory ${newDir.path}.`, e);
+      }
+      throw e;
+    }
+  }),
+
+ /**
+  * Resumes upgrade of a previously-delayed add-on set.
+  */
+  resumeAddonSet: Task.async(function*(installs) {
+    let resumeAddon = Task.async(function*(install) {
+      install.state = AddonManager.STATE_DOWNLOADED;
+      install.installLocation.releaseStagingDir();
+      install.install();
+    });
+
+    let addonSet = this._loadAddonSet();
+    let addonIDs = Object.keys(addonSet.addons);
+
+    let blockers = installs.filter(
+      install => AddonManagerPrivate.hasUpgradeListener(install.addon.id)
+    );
+
+    if (blockers.length > 1) {
+      logger.warn("Attempted to resume system add-on install but upgrade blockers are still present");
+    } else {
+      yield waitForAllPromises(installs.map(resumeAddon));
+    }
+  }),
+
+  /**
+   * Returns a directory that is normally on the same filesystem as the rest of
+   * the install location and can be used for temporarily storing files during
+   * safe move operations. Calling this method will delete the existing trash
+   * directory and its contents.
+   *
+   * @return an nsIFile
+   */
+  getTrashDir: function() {
+    let trashDir = this._directory.clone();
+    trashDir.append(DIR_TRASH);
+    let trashDirExists = trashDir.exists();
+    try {
+      if (trashDirExists)
+        recursiveRemove(trashDir);
+      trashDirExists = false;
+    } catch (e) {
+      logger.warn("Failed to remove trash directory", e);
+    }
+    if (!trashDirExists)
+      trashDir.create(Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+
+    return trashDir;
+  },
+
+  /**
+   * Installs an add-on into the install location.
+   *
+   * @param  id
+   *         The ID of the add-on to install
+   * @param  source
+   *         The source nsIFile to install from
+   * @return an nsIFile indicating where the add-on was installed to
+   */
+  installAddon: function({id, source}) {
+    let trashDir = this.getTrashDir();
+    let transaction = new SafeInstallOperation();
+
+    // If any of these operations fails the finally block will clean up the
+    // temporary directory
+    try {
+      if (source.isFile()) {
+        flushJarCache(source);
+      }
+
+      transaction.moveUnder(source, this._directory);
+    }
+    finally {
+      // It isn't ideal if this cleanup fails but it isn't worth rolling back
+      // the install because of it.
+      try {
+        recursiveRemove(trashDir);
+      }
+      catch (e) {
+        logger.warn("Failed to remove trash directory when installing " + id, e);
+      }
+    }
+
+    let newFile = this._directory.clone();
+    newFile.append(source.leafName);
+
+    try {
+      newFile.lastModifiedTime = Date.now();
+    } catch (e)  {
+      logger.warn("failed to set lastModifiedTime on " + newFile.path, e);
+    }
+    this._IDToFileMap[id] = newFile;
+    XPIProvider._addURIMapping(id, newFile);
+
+    return newFile;
+  },
+
+  // old system add-on upgrade dirs get automatically removed
+  uninstallAddon: (aAddon) => {},
+});
+
+/**
+ * An object which identifies an install location for temporary add-ons.
+ */
+const TemporaryInstallLocation = {
+  locked: false,
+  name: KEY_APP_TEMPORARY,
+  scope: AddonManager.SCOPE_TEMPORARY,
+  getAddonLocations: () => [],
+  isLinkedAddon: () => false,
+  installAddon: () => {},
+  uninstallAddon: (aAddon) => {},
+  getStagingDir: () => {},
+}
+
+/**
+ * An object that identifies a registry install location for add-ons. The location
+ * consists of a registry key which contains string values mapping ID to the
+ * path where an add-on is installed
+ *
+ * @param  aName
+ *         The string identifier of this Install Location.
+ * @param  aRootKey
+ *         The root key (one of the ROOT_KEY_ values from nsIWindowsRegKey).
+ * @param  scope
+ *         The scope of add-ons installed in this location
+ */
+function WinRegInstallLocation(aName, aRootKey, aScope) {
+  this.locked = true;
+  this._name = aName;
+  this._rootKey = aRootKey;
+  this._scope = aScope;
+  this._IDToFileMap = {};
+
+  let path = this._appKeyPath + "\\Extensions";
+  let key = Cc["@mozilla.org/windows-registry-key;1"].
+            createInstance(Ci.nsIWindowsRegKey);
+
+  // Reading the registry may throw an exception, and that's ok.  In error
+  // cases, we just leave ourselves in the empty state.
+  try {
+    key.open(this._rootKey, path, Ci.nsIWindowsRegKey.ACCESS_READ);
+  }
+  catch (e) {
+    return;
+  }
+
+  this._readAddons(key);
+  key.close();
+}
+
+WinRegInstallLocation.prototype = {
+  _name       : "",
+  _rootKey    : null,
+  _scope      : null,
+  _IDToFileMap : null,  // mapping from ID to nsIFile
+
+  /**
+   * Retrieves the path of this Application's data key in the registry.
+   */
+  get _appKeyPath() {
+    let appVendor = Services.appinfo.vendor;
+    let appName = Services.appinfo.name;
+
+    // XXX Thunderbird doesn't specify a vendor string
+    if (AppConstants.MOZ_APP_NAME == "thunderbird" && appVendor == "")
+      appVendor = "Mozilla";
+
+    // XULRunner-based apps may intentionally not specify a vendor
+    if (appVendor != "")
+      appVendor += "\\";
+
+    return "SOFTWARE\\" + appVendor + appName;
+  },
+
+  /**
+   * Read the registry and build a mapping between ID and path for each
+   * installed add-on.
+   *
+   * @param  key
+   *         The key that contains the ID to path mapping
+   */
+  _readAddons: function(aKey) {
+    let count = aKey.valueCount;
+    for (let i = 0; i < count; ++i) {
+      let id = aKey.getValueName(i);
+
+      let file = new nsIFile(aKey.readStringValue(id));
+
+      if (!file.exists()) {
+        logger.warn("Ignoring missing add-on in " + file.path);
+        continue;
+      }
+
+      this._IDToFileMap[id] = file;
+      XPIProvider._addURIMapping(id, file);
+    }
+  },
+
+  /**
+   * Gets the name of this install location.
+   */
+  get name() {
+    return this._name;
+  },
+
+  /**
+   * Gets the scope of this install location.
+   */
+  get scope() {
+    return this._scope;
+  },
+
+  /**
+   * Gets an array of nsIFiles for add-ons installed in this location.
+   */
+  getAddonLocations: function() {
+    let locations = new Map();
+    for (let id in this._IDToFileMap) {
+      locations.set(id, this._IDToFileMap[id].clone());
+    }
+    return locations;
+  },
+
+  /**
+   * @see DirectoryInstallLocation
+   */
+  isLinkedAddon: function(aId) {
+    return true;
+  }
+};
+
+var addonTypes = [
+  new AddonManagerPrivate.AddonType("extension", URI_EXTENSION_STRINGS,
+                                    STRING_TYPE_NAME,
+                                    AddonManager.VIEW_TYPE_LIST, 4000,
+                                    AddonManager.TYPE_SUPPORTS_UNDO_RESTARTLESS_UNINSTALL),
+  new AddonManagerPrivate.AddonType("theme", URI_EXTENSION_STRINGS,
+                                    STRING_TYPE_NAME,
+                                    AddonManager.VIEW_TYPE_LIST, 5000),
+  new AddonManagerPrivate.AddonType("dictionary", URI_EXTENSION_STRINGS,
+                                    STRING_TYPE_NAME,
+                                    AddonManager.VIEW_TYPE_LIST, 7000,
+                                    AddonManager.TYPE_UI_HIDE_EMPTY | AddonManager.TYPE_SUPPORTS_UNDO_RESTARTLESS_UNINSTALL),
+  new AddonManagerPrivate.AddonType("locale", URI_EXTENSION_STRINGS,
+                                    STRING_TYPE_NAME,
+                                    AddonManager.VIEW_TYPE_LIST, 8000,
+                                    AddonManager.TYPE_UI_HIDE_EMPTY | AddonManager.TYPE_SUPPORTS_UNDO_RESTARTLESS_UNINSTALL),
+];
+
+// We only register experiments support if the application supports them.
+// Ideally, we would install an observer to watch the pref. Installing
+// an observer for this pref is not necessary here and may be buggy with
+// regards to registering this XPIProvider twice.
+if (Preferences.get("experiments.supported", false)) {
+  addonTypes.push(
+    new AddonManagerPrivate.AddonType("experiment",
+                                      URI_EXTENSION_STRINGS,
+                                      STRING_TYPE_NAME,
+                                      AddonManager.VIEW_TYPE_LIST, 11000,
+                                      AddonManager.TYPE_UI_HIDE_EMPTY | AddonManager.TYPE_SUPPORTS_UNDO_RESTARTLESS_UNINSTALL));
+}
+
+AddonManagerPrivate.registerProvider(XPIProvider, addonTypes);
diff --git a/toolkit/mozapps/webextensions/internal/XPIProviderUtils.js b/toolkit/mozapps/webextensions/internal/XPIProviderUtils.js
new file mode 100644
index 000000000..d04eb207c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/XPIProviderUtils.js
@@ -0,0 +1,2255 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+// These are injected from XPIProvider.jsm
+/* globals ADDON_SIGNING, SIGNED_TYPES, BOOTSTRAP_REASONS, DB_SCHEMA,
+          AddonInternal, XPIProvider, XPIStates, syncLoadManifestFromFile,
+          isUsableAddon, recordAddonTelemetry, applyBlocklistChanges,
+          flushChromeCaches, canRunInSafeMode*/
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cr = Components.results;
+var Cu = Components.utils;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/AddonManager.jsm");
+/* globals AddonManagerPrivate*/
+Cu.import("resource://gre/modules/Preferences.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "AddonRepository",
+                                  "resource://gre/modules/addons/AddonRepository.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
+                                  "resource://gre/modules/FileUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "DeferredSave",
+                                  "resource://gre/modules/DeferredSave.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Promise",
+                                  "resource://gre/modules/Promise.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "OS",
+                                  "resource://gre/modules/osfile.jsm");
+XPCOMUtils.defineLazyServiceGetter(this, "Blocklist",
+                                   "@mozilla.org/extensions/blocklist;1",
+                                   Ci.nsIBlocklistService);
+
+Cu.import("resource://gre/modules/Log.jsm");
+const LOGGER_ID = "addons.xpi-utils";
+
+const nsIFile = Components.Constructor("@mozilla.org/file/local;1", "nsIFile");
+
+// Create a new logger for use by the Addons XPI Provider Utils
+// (Requires AddonManager.jsm)
+var logger = Log.repository.getLogger(LOGGER_ID);
+
+const KEY_PROFILEDIR                  = "ProfD";
+const FILE_DATABASE                   = "extensions.sqlite";
+const FILE_JSON_DB                    = "extensions.json";
+const FILE_OLD_DATABASE               = "extensions.rdf";
+const FILE_XPI_ADDONS_LIST            = "extensions.ini";
+
+// The last version of DB_SCHEMA implemented in SQLITE
+const LAST_SQLITE_DB_SCHEMA           = 14;
+const PREF_DB_SCHEMA                  = "extensions.databaseSchema";
+const PREF_PENDING_OPERATIONS         = "extensions.pendingOperations";
+const PREF_EM_ENABLED_ADDONS          = "extensions.enabledAddons";
+const PREF_EM_DSS_ENABLED             = "extensions.dss.enabled";
+const PREF_EM_AUTO_DISABLED_SCOPES    = "extensions.autoDisableScopes";
+const PREF_E10S_BLOCKED_BY_ADDONS     = "extensions.e10sBlockedByAddons";
+const PREF_E10S_HAS_NONEXEMPT_ADDON   = "extensions.e10s.rollout.hasAddon";
+
+const KEY_APP_PROFILE                 = "app-profile";
+const KEY_APP_SYSTEM_ADDONS           = "app-system-addons";
+const KEY_APP_SYSTEM_DEFAULTS         = "app-system-defaults";
+const KEY_APP_GLOBAL                  = "app-global";
+
+// Properties that only exist in the database
+const DB_METADATA        = ["syncGUID",
+                            "installDate",
+                            "updateDate",
+                            "size",
+                            "sourceURI",
+                            "releaseNotesURI",
+                            "applyBackgroundUpdates"];
+const DB_BOOL_METADATA   = ["visible", "active", "userDisabled", "appDisabled",
+                            "pendingUninstall", "bootstrap", "skinnable",
+                            "softDisabled", "isForeignInstall",
+                            "hasBinaryComponents", "strictCompatibility"];
+
+// Properties to save in JSON file
+const PROP_JSON_FIELDS = ["id", "syncGUID", "location", "version", "type",
+                          "internalName", "updateURL", "updateKey", "optionsURL",
+                          "optionsType", "aboutURL", "icons", "iconURL", "icon64URL",
+                          "defaultLocale", "visible", "active", "userDisabled",
+                          "appDisabled", "pendingUninstall", "descriptor", "installDate",
+                          "updateDate", "applyBackgroundUpdates", "bootstrap",
+                          "skinnable", "size", "sourceURI", "releaseNotesURI",
+                          "softDisabled", "foreignInstall", "hasBinaryComponents",
+                          "strictCompatibility", "locales", "targetApplications",
+                          "targetPlatforms", "multiprocessCompatible", "signedState",
+                          "seen", "dependencies", "hasEmbeddedWebExtension", "mpcOptedOut"];
+
+// Properties that should be migrated where possible from an old database. These
+// shouldn't include properties that can be read directly from install.rdf files
+// or calculated
+const DB_MIGRATE_METADATA= ["installDate", "userDisabled", "softDisabled",
+                            "sourceURI", "applyBackgroundUpdates",
+                            "releaseNotesURI", "foreignInstall", "syncGUID"];
+
+// Time to wait before async save of XPI JSON database, in milliseconds
+const ASYNC_SAVE_DELAY_MS = 20;
+
+const PREFIX_ITEM_URI                 = "urn:mozilla:item:";
+const RDFURI_ITEM_ROOT                = "urn:mozilla:item:root"
+const PREFIX_NS_EM                    = "http://www.mozilla.org/2004/em-rdf#";
+
+XPCOMUtils.defineLazyServiceGetter(this, "gRDF", "@mozilla.org/rdf/rdf-service;1",
+                                   Ci.nsIRDFService);
+
+function EM_R(aProperty) {
+  return gRDF.GetResource(PREFIX_NS_EM + aProperty);
+}
+
+/**
+ * Converts an RDF literal, resource or integer into a string.
+ *
+ * @param  aLiteral
+ *         The RDF object to convert
+ * @return a string if the object could be converted or null
+ */
+function getRDFValue(aLiteral) {
+  if (aLiteral instanceof Ci.nsIRDFLiteral)
+    return aLiteral.Value;
+  if (aLiteral instanceof Ci.nsIRDFResource)
+    return aLiteral.Value;
+  if (aLiteral instanceof Ci.nsIRDFInt)
+    return aLiteral.Value;
+  return null;
+}
+
+/**
+ * Gets an RDF property as a string
+ *
+ * @param  aDs
+ *         The RDF datasource to read the property from
+ * @param  aResource
+ *         The RDF resource to read the property from
+ * @param  aProperty
+ *         The property to read
+ * @return a string if the property existed or null
+ */
+function getRDFProperty(aDs, aResource, aProperty) {
+  return getRDFValue(aDs.GetTarget(aResource, EM_R(aProperty), true));
+}
+
+/**
+ * Asynchronously fill in the _repositoryAddon field for one addon
+ */
+function getRepositoryAddon(aAddon, aCallback) {
+  if (!aAddon) {
+    aCallback(aAddon);
+    return;
+  }
+  function completeAddon(aRepositoryAddon) {
+    aAddon._repositoryAddon = aRepositoryAddon;
+    aAddon.compatibilityOverrides = aRepositoryAddon ?
+                                      aRepositoryAddon.compatibilityOverrides :
+                                      null;
+    aCallback(aAddon);
+  }
+  AddonRepository.getCachedAddonByID(aAddon.id, completeAddon);
+}
+
+/**
+ * Wrap an API-supplied function in an exception handler to make it safe to call
+ */
+function makeSafe(aCallback) {
+  return function(...aArgs) {
+    try {
+      aCallback(...aArgs);
+    }
+    catch (ex) {
+      logger.warn("XPI Database callback failed", ex);
+    }
+  }
+}
+
+/**
+ * A helper method to asynchronously call a function on an array
+ * of objects, calling a callback when function(x) has been gathered
+ * for every element of the array.
+ * WARNING: not currently error-safe; if the async function does not call
+ * our internal callback for any of the array elements, asyncMap will not
+ * call the callback parameter.
+ *
+ * @param  aObjects
+ *         The array of objects to process asynchronously
+ * @param  aMethod
+ *         Function with signature function(object, function(f_of_object))
+ * @param  aCallback
+ *         Function with signature f([aMethod(object)]), called when all values
+ *         are available
+ */
+function asyncMap(aObjects, aMethod, aCallback) {
+  var resultsPending = aObjects.length;
+  var results = []
+  if (resultsPending == 0) {
+    aCallback(results);
+    return;
+  }
+
+  function asyncMap_gotValue(aIndex, aValue) {
+    results[aIndex] = aValue;
+    if (--resultsPending == 0) {
+      aCallback(results);
+    }
+  }
+
+  aObjects.map(function(aObject, aIndex, aArray) {
+    try {
+      aMethod(aObject, function(aResult) {
+        asyncMap_gotValue(aIndex, aResult);
+      });
+    }
+    catch (e) {
+      logger.warn("Async map function failed", e);
+      asyncMap_gotValue(aIndex, undefined);
+    }
+  });
+}
+
+/**
+ * A generator to synchronously return result rows from an mozIStorageStatement.
+ *
+ * @param  aStatement
+ *         The statement to execute
+ */
+function* resultRows(aStatement) {
+  try {
+    while (stepStatement(aStatement))
+      yield aStatement.row;
+  }
+  finally {
+    aStatement.reset();
+  }
+}
+
+/**
+ * A helper function to log an SQL error.
+ *
+ * @param  aError
+ *         The storage error code associated with the error
+ * @param  aErrorString
+ *         An error message
+ */
+function logSQLError(aError, aErrorString) {
+  logger.error("SQL error " + aError + ": " + aErrorString);
+}
+
+/**
+ * A helper function to log any errors that occur during async statements.
+ *
+ * @param  aError
+ *         A mozIStorageError to log
+ */
+function asyncErrorLogger(aError) {
+  logSQLError(aError.result, aError.message);
+}
+
+/**
+ * A helper function to step a statement synchronously and log any error that
+ * occurs.
+ *
+ * @param  aStatement
+ *         A mozIStorageStatement to execute
+ */
+function stepStatement(aStatement) {
+  try {
+    return aStatement.executeStep();
+  }
+  catch (e) {
+    logSQLError(XPIDatabase.connection.lastError,
+                XPIDatabase.connection.lastErrorString);
+    throw e;
+  }
+}
+
+/**
+ * Copies properties from one object to another. If no target object is passed
+ * a new object will be created and returned.
+ *
+ * @param  aObject
+ *         An object to copy from
+ * @param  aProperties
+ *         An array of properties to be copied
+ * @param  aTarget
+ *         An optional target object to copy the properties to
+ * @return the object that the properties were copied onto
+ */
+function copyProperties(aObject, aProperties, aTarget) {
+  if (!aTarget)
+    aTarget = {};
+  aProperties.forEach(function(aProp) {
+    if (aProp in aObject)
+      aTarget[aProp] = aObject[aProp];
+  });
+  return aTarget;
+}
+
+/**
+ * Copies properties from a mozIStorageRow to an object. If no target object is
+ * passed a new object will be created and returned.
+ *
+ * @param  aRow
+ *         A mozIStorageRow to copy from
+ * @param  aProperties
+ *         An array of properties to be copied
+ * @param  aTarget
+ *         An optional target object to copy the properties to
+ * @return the object that the properties were copied onto
+ */
+function copyRowProperties(aRow, aProperties, aTarget) {
+  if (!aTarget)
+    aTarget = {};
+  aProperties.forEach(function(aProp) {
+    aTarget[aProp] = aRow.getResultByName(aProp);
+  });
+  return aTarget;
+}
+
+/**
+ * The DBAddonInternal is a special AddonInternal that has been retrieved from
+ * the database. The constructor will initialize the DBAddonInternal with a set
+ * of fields, which could come from either the JSON store or as an
+ * XPIProvider.AddonInternal created from an addon's manifest
+ * @constructor
+ * @param aLoaded
+ *        Addon data fields loaded from JSON or the addon manifest.
+ */
+function DBAddonInternal(aLoaded) {
+  AddonInternal.call(this);
+
+  copyProperties(aLoaded, PROP_JSON_FIELDS, this);
+
+  if (!this.dependencies)
+    this.dependencies = [];
+  Object.freeze(this.dependencies);
+
+  if (aLoaded._installLocation) {
+    this._installLocation = aLoaded._installLocation;
+    this.location = aLoaded._installLocation.name;
+  }
+  else if (aLoaded.location) {
+    this._installLocation = XPIProvider.installLocationsByName[this.location];
+  }
+
+  this._key = this.location + ":" + this.id;
+
+  if (!aLoaded._sourceBundle) {
+    throw new Error("Expected passed argument to contain a descriptor");
+  }
+
+  this._sourceBundle = aLoaded._sourceBundle;
+
+  XPCOMUtils.defineLazyGetter(this, "pendingUpgrade", function() {
+      for (let install of XPIProvider.installs) {
+        if (install.state == AddonManager.STATE_INSTALLED &&
+            !(install.addon.inDatabase) &&
+            install.addon.id == this.id &&
+            install.installLocation == this._installLocation) {
+          delete this.pendingUpgrade;
+          return this.pendingUpgrade = install.addon;
+        }
+      }
+      return null;
+    });
+}
+
+DBAddonInternal.prototype = Object.create(AddonInternal.prototype);
+Object.assign(DBAddonInternal.prototype, {
+  applyCompatibilityUpdate: function(aUpdate, aSyncCompatibility) {
+    let wasCompatible = this.isCompatible;
+
+    this.targetApplications.forEach(function(aTargetApp) {
+      aUpdate.targetApplications.forEach(function(aUpdateTarget) {
+        if (aTargetApp.id == aUpdateTarget.id && (aSyncCompatibility ||
+            Services.vc.compare(aTargetApp.maxVersion, aUpdateTarget.maxVersion) < 0)) {
+          aTargetApp.minVersion = aUpdateTarget.minVersion;
+          aTargetApp.maxVersion = aUpdateTarget.maxVersion;
+          XPIDatabase.saveChanges();
+        }
+      });
+    });
+    if (aUpdate.multiprocessCompatible !== undefined &&
+        aUpdate.multiprocessCompatible != this.multiprocessCompatible) {
+      this.multiprocessCompatible = aUpdate.multiprocessCompatible;
+      XPIDatabase.saveChanges();
+    }
+
+    if (wasCompatible != this.isCompatible)
+      XPIProvider.updateAddonDisabledState(this);
+  },
+
+  toJSON: function() {
+    let jsonData = copyProperties(this, PROP_JSON_FIELDS);
+
+    // Experiments are serialized as disabled so they aren't run on the next
+    // startup.
+    if (this.type == "experiment") {
+      jsonData.userDisabled = true;
+      jsonData.active = false;
+    }
+
+    return jsonData;
+  },
+
+  get inDatabase() {
+    return true;
+  }
+});
+
+/**
+ * Internal interface: find an addon from an already loaded addonDB
+ */
+function _findAddon(addonDB, aFilter) {
+  for (let addon of addonDB.values()) {
+    if (aFilter(addon)) {
+      return addon;
+    }
+  }
+  return null;
+}
+
+/**
+ * Internal interface to get a filtered list of addons from a loaded addonDB
+ */
+function _filterDB(addonDB, aFilter) {
+  return Array.from(addonDB.values()).filter(aFilter);
+}
+
+this.XPIDatabase = {
+  // true if the database connection has been opened
+  initialized: false,
+  // The database file
+  jsonFile: FileUtils.getFile(KEY_PROFILEDIR, [FILE_JSON_DB], true),
+  // Migration data loaded from an old version of the database.
+  migrateData: null,
+  // Active add-on directories loaded from extensions.ini and prefs at startup.
+  activeBundles: null,
+
+  // Saved error object if we fail to read an existing database
+  _loadError: null,
+
+  // Error reported by our most recent attempt to read or write the database, if any
+  get lastError() {
+    if (this._loadError)
+      return this._loadError;
+    if (this._deferredSave)
+      return this._deferredSave.lastError;
+    return null;
+  },
+
+  /**
+   * Mark the current stored data dirty, and schedule a flush to disk
+   */
+  saveChanges: function() {
+    if (!this.initialized) {
+      throw new Error("Attempt to use XPI database when it is not initialized");
+    }
+
+    if (XPIProvider._closing) {
+      // use an Error here so we get a stack trace.
+      let err = new Error("XPI database modified after shutdown began");
+      logger.warn(err);
+      AddonManagerPrivate.recordSimpleMeasure("XPIDB_late_stack", Log.stackTrace(err));
+    }
+
+    if (!this._deferredSave) {
+      this._deferredSave = new DeferredSave(this.jsonFile.path,
+                                            () => JSON.stringify(this),
+                                            ASYNC_SAVE_DELAY_MS);
+    }
+
+    this.updateAddonsBlockingE10s();
+    let promise = this._deferredSave.saveChanges();
+    if (!this._schemaVersionSet) {
+      this._schemaVersionSet = true;
+      promise = promise.then(
+        count => {
+          // Update the XPIDB schema version preference the first time we successfully
+          // save the database.
+          logger.debug("XPI Database saved, setting schema version preference to " + DB_SCHEMA);
+          Services.prefs.setIntPref(PREF_DB_SCHEMA, DB_SCHEMA);
+          // Reading the DB worked once, so we don't need the load error
+          this._loadError = null;
+        },
+        error => {
+          // Need to try setting the schema version again later
+          this._schemaVersionSet = false;
+          // this._deferredSave.lastError has the most recent error so we don't
+          // need this any more
+          this._loadError = null;
+
+          throw error;
+        });
+    }
+
+    promise.catch(error => {
+      logger.warn("Failed to save XPI database", error);
+    });
+  },
+
+  flush: function() {
+    // handle the "in memory only" and "saveChanges never called" cases
+    if (!this._deferredSave) {
+      return Promise.resolve(0);
+    }
+
+    return this._deferredSave.flush();
+  },
+
+  /**
+   * Converts the current internal state of the XPI addon database to
+   * a JSON.stringify()-ready structure
+   */
+  toJSON: function() {
+    if (!this.addonDB) {
+      // We never loaded the database?
+      throw new Error("Attempt to save database without loading it first");
+    }
+
+    let toSave = {
+      schemaVersion: DB_SCHEMA,
+      addons: [...this.addonDB.values()]
+    };
+    return toSave;
+  },
+
+  /**
+   * Pull upgrade information from an existing SQLITE database
+   *
+   * @return false if there is no SQLITE database
+   *         true and sets this.migrateData to null if the SQLITE DB exists
+   *              but does not contain useful information
+   *         true and sets this.migrateData to
+   *              {location: {id1:{addon1}, id2:{addon2}}, location2:{...}, ...}
+   *              if there is useful information
+   */
+  getMigrateDataFromSQLITE: function() {
+    let connection = null;
+    let dbfile = FileUtils.getFile(KEY_PROFILEDIR, [FILE_DATABASE], true);
+    // Attempt to open the database
+    try {
+      connection = Services.storage.openUnsharedDatabase(dbfile);
+    }
+    catch (e) {
+      logger.warn("Failed to open sqlite database " + dbfile.path + " for upgrade", e);
+      return null;
+    }
+    logger.debug("Migrating data from sqlite");
+    let migrateData = this.getMigrateDataFromDatabase(connection);
+    connection.close();
+    return migrateData;
+  },
+
+  /**
+   * Synchronously opens and reads the database file, upgrading from old
+   * databases or making a new DB if needed.
+   *
+   * The possibilities, in order of priority, are:
+   * 1) Perfectly good, up to date database
+   * 2) Out of date JSON database needs to be upgraded => upgrade
+   * 3) JSON database exists but is mangled somehow => build new JSON
+   * 4) no JSON DB, but a useable SQLITE db we can upgrade from => upgrade
+   * 5) useless SQLITE DB => build new JSON
+   * 6) useable RDF DB => upgrade
+   * 7) useless RDF DB => build new JSON
+   * 8) Nothing at all => build new JSON
+   * @param  aRebuildOnError
+   *         A boolean indicating whether add-on information should be loaded
+   *         from the install locations if the database needs to be rebuilt.
+   *         (if false, caller is XPIProvider.checkForChanges() which will rebuild)
+   */
+  syncLoadDB: function(aRebuildOnError) {
+    this.migrateData = null;
+    let fstream = null;
+    let data = "";
+    try {
+      let readTimer = AddonManagerPrivate.simpleTimer("XPIDB_syncRead_MS");
+      logger.debug("Opening XPI database " + this.jsonFile.path);
+      fstream = Components.classes["@mozilla.org/network/file-input-stream;1"].
+              createInstance(Components.interfaces.nsIFileInputStream);
+      fstream.init(this.jsonFile, -1, 0, 0);
+      let cstream = null;
+      try {
+        cstream = Components.classes["@mozilla.org/intl/converter-input-stream;1"].
+                createInstance(Components.interfaces.nsIConverterInputStream);
+        cstream.init(fstream, "UTF-8", 0, 0);
+
+        let str = {};
+        let read = 0;
+        do {
+          read = cstream.readString(0xffffffff, str); // read as much as we can and put it in str.value
+          data += str.value;
+        } while (read != 0);
+
+        readTimer.done();
+        this.parseDB(data, aRebuildOnError);
+      }
+      catch (e) {
+        logger.error("Failed to load XPI JSON data from profile", e);
+        let rebuildTimer = AddonManagerPrivate.simpleTimer("XPIDB_rebuildReadFailed_MS");
+        this.rebuildDatabase(aRebuildOnError);
+        rebuildTimer.done();
+      }
+      finally {
+        if (cstream)
+          cstream.close();
+      }
+    }
+    catch (e) {
+      if (e.result === Cr.NS_ERROR_FILE_NOT_FOUND) {
+        this.upgradeDB(aRebuildOnError);
+      }
+      else {
+        this.rebuildUnreadableDB(e, aRebuildOnError);
+      }
+    }
+    finally {
+      if (fstream)
+        fstream.close();
+    }
+    // If an async load was also in progress, resolve that promise with our DB;
+    // otherwise create a resolved promise
+    if (this._dbPromise) {
+      AddonManagerPrivate.recordSimpleMeasure("XPIDB_overlapped_load", 1);
+      this._dbPromise.resolve(this.addonDB);
+    }
+    else
+      this._dbPromise = Promise.resolve(this.addonDB);
+  },
+
+  /**
+   * Parse loaded data, reconstructing the database if the loaded data is not valid
+   * @param aRebuildOnError
+   *        If true, synchronously reconstruct the database from installed add-ons
+   */
+  parseDB: function(aData, aRebuildOnError) {
+    let parseTimer = AddonManagerPrivate.simpleTimer("XPIDB_parseDB_MS");
+    try {
+      // dump("Loaded JSON:\n" + aData + "\n");
+      let inputAddons = JSON.parse(aData);
+      // Now do some sanity checks on our JSON db
+      if (!("schemaVersion" in inputAddons) || !("addons" in inputAddons)) {
+        parseTimer.done();
+        // Content of JSON file is bad, need to rebuild from scratch
+        logger.error("bad JSON file contents");
+        AddonManagerPrivate.recordSimpleMeasure("XPIDB_startupError", "badJSON");
+        let rebuildTimer = AddonManagerPrivate.simpleTimer("XPIDB_rebuildBadJSON_MS");
+        this.rebuildDatabase(aRebuildOnError);
+        rebuildTimer.done();
+        return;
+      }
+      if (inputAddons.schemaVersion != DB_SCHEMA) {
+        // Handle mismatched JSON schema version. For now, we assume
+        // compatibility for JSON data, though we throw away any fields we
+        // don't know about (bug 902956)
+        AddonManagerPrivate.recordSimpleMeasure("XPIDB_startupError",
+                                                "schemaMismatch-" + inputAddons.schemaVersion);
+        logger.debug("JSON schema mismatch: expected " + DB_SCHEMA +
+            ", actual " + inputAddons.schemaVersion);
+        // When we rev the schema of the JSON database, we need to make sure we
+        // force the DB to save so that the DB_SCHEMA value in the JSON file and
+        // the preference are updated.
+      }
+      // If we got here, we probably have good data
+      // Make AddonInternal instances from the loaded data and save them
+      let addonDB = new Map();
+      for (let loadedAddon of inputAddons.addons) {
+        loadedAddon._sourceBundle = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+        try {
+          loadedAddon._sourceBundle.persistentDescriptor = loadedAddon.descriptor;
+        }
+        catch (e) {
+          // We can fail here when the descriptor is invalid, usually from the
+          // wrong OS
+          logger.warn("Could not find source bundle for add-on " + loadedAddon.id, e);
+        }
+
+        let newAddon = new DBAddonInternal(loadedAddon);
+        addonDB.set(newAddon._key, newAddon);
+      }
+      parseTimer.done();
+      this.addonDB = addonDB;
+      logger.debug("Successfully read XPI database");
+      this.initialized = true;
+    }
+    catch (e) {
+      // If we catch and log a SyntaxError from the JSON
+      // parser, the xpcshell test harness fails the test for us: bug 870828
+      parseTimer.done();
+      if (e.name == "SyntaxError") {
+        logger.error("Syntax error parsing saved XPI JSON data");
+        AddonManagerPrivate.recordSimpleMeasure("XPIDB_startupError", "syntax");
+      }
+      else {
+        logger.error("Failed to load XPI JSON data from profile", e);
+        AddonManagerPrivate.recordSimpleMeasure("XPIDB_startupError", "other");
+      }
+      let rebuildTimer = AddonManagerPrivate.simpleTimer("XPIDB_rebuildReadFailed_MS");
+      this.rebuildDatabase(aRebuildOnError);
+      rebuildTimer.done();
+    }
+  },
+
+  /**
+   * Upgrade database from earlier (sqlite or RDF) version if available
+   */
+  upgradeDB: function(aRebuildOnError) {
+    let upgradeTimer = AddonManagerPrivate.simpleTimer("XPIDB_upgradeDB_MS");
+    try {
+      let schemaVersion = Services.prefs.getIntPref(PREF_DB_SCHEMA);
+      if (schemaVersion <= LAST_SQLITE_DB_SCHEMA) {
+        // we should have an older SQLITE database
+        logger.debug("Attempting to upgrade from SQLITE database");
+        this.migrateData = this.getMigrateDataFromSQLITE();
+      }
+      else {
+        // we've upgraded before but the JSON file is gone, fall through
+        // and rebuild from scratch
+        AddonManagerPrivate.recordSimpleMeasure("XPIDB_startupError", "dbMissing");
+      }
+    }
+    catch (e) {
+      // No schema version pref means either a really old upgrade (RDF) or
+      // a new profile
+      this.migrateData = this.getMigrateDataFromRDF();
+    }
+
+    this.rebuildDatabase(aRebuildOnError);
+    upgradeTimer.done();
+  },
+
+  /**
+   * Reconstruct when the DB file exists but is unreadable
+   * (for example because read permission is denied)
+   */
+  rebuildUnreadableDB: function(aError, aRebuildOnError) {
+    let rebuildTimer = AddonManagerPrivate.simpleTimer("XPIDB_rebuildUnreadableDB_MS");
+    logger.warn("Extensions database " + this.jsonFile.path +
+        " exists but is not readable; rebuilding", aError);
+    // Remember the error message until we try and write at least once, so
+    // we know at shutdown time that there was a problem
+    this._loadError = aError;
+    AddonManagerPrivate.recordSimpleMeasure("XPIDB_startupError", "unreadable");
+    this.rebuildDatabase(aRebuildOnError);
+    rebuildTimer.done();
+  },
+
+  /**
+   * Open and read the XPI database asynchronously, upgrading if
+   * necessary. If any DB load operation fails, we need to
+   * synchronously rebuild the DB from the installed extensions.
+   *
+   * @return Promise<Map> resolves to the Map of loaded JSON data stored
+   *         in this.addonDB; never rejects.
+   */
+  asyncLoadDB: function() {
+    // Already started (and possibly finished) loading
+    if (this._dbPromise) {
+      return this._dbPromise;
+    }
+
+    logger.debug("Starting async load of XPI database " + this.jsonFile.path);
+    AddonManagerPrivate.recordSimpleMeasure("XPIDB_async_load", XPIProvider.runPhase);
+    let readOptions = {
+      outExecutionDuration: 0
+    };
+    return this._dbPromise = OS.File.read(this.jsonFile.path, null, readOptions).then(
+      byteArray => {
+        logger.debug("Async JSON file read took " + readOptions.outExecutionDuration + " MS");
+        AddonManagerPrivate.recordSimpleMeasure("XPIDB_asyncRead_MS",
+          readOptions.outExecutionDuration);
+        if (this._addonDB) {
+          logger.debug("Synchronous load completed while waiting for async load");
+          return this.addonDB;
+        }
+        logger.debug("Finished async read of XPI database, parsing...");
+        let decodeTimer = AddonManagerPrivate.simpleTimer("XPIDB_decode_MS");
+        let decoder = new TextDecoder();
+        let data = decoder.decode(byteArray);
+        decodeTimer.done();
+        this.parseDB(data, true);
+        return this.addonDB;
+      })
+    .then(null,
+      error => {
+        if (this._addonDB) {
+          logger.debug("Synchronous load completed while waiting for async load");
+          return this.addonDB;
+        }
+        if (error.becauseNoSuchFile) {
+          this.upgradeDB(true);
+        }
+        else {
+          // it's there but unreadable
+          this.rebuildUnreadableDB(error, true);
+        }
+        return this.addonDB;
+      });
+  },
+
+  /**
+   * Rebuild the database from addon install directories. If this.migrateData
+   * is available, uses migrated information for settings on the addons found
+   * during rebuild
+   * @param aRebuildOnError
+   *         A boolean indicating whether add-on information should be loaded
+   *         from the install locations if the database needs to be rebuilt.
+   *         (if false, caller is XPIProvider.checkForChanges() which will rebuild)
+   */
+  rebuildDatabase: function(aRebuildOnError) {
+    this.addonDB = new Map();
+    this.initialized = true;
+
+    if (XPIStates.size == 0) {
+      // No extensions installed, so we're done
+      logger.debug("Rebuilding XPI database with no extensions");
+      return;
+    }
+
+    // If there is no migration data then load the list of add-on directories
+    // that were active during the last run
+    if (!this.migrateData)
+      this.activeBundles = this.getActiveBundles();
+
+    if (aRebuildOnError) {
+      logger.warn("Rebuilding add-ons database from installed extensions.");
+      try {
+        XPIDatabaseReconcile.processFileChanges({}, false);
+      }
+      catch (e) {
+        logger.error("Failed to rebuild XPI database from installed extensions", e);
+      }
+      // Make sure to update the active add-ons and add-ons list on shutdown
+      Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, true);
+    }
+  },
+
+  /**
+   * Gets the list of file descriptors of active extension directories or XPI
+   * files from the add-ons list. This must be loaded from disk since the
+   * directory service gives no easy way to get both directly. This list doesn't
+   * include themes as preferences already say which theme is currently active
+   *
+   * @return an array of persistent descriptors for the directories
+   */
+  getActiveBundles: function() {
+    let bundles = [];
+
+    // non-bootstrapped extensions
+    let addonsList = FileUtils.getFile(KEY_PROFILEDIR, [FILE_XPI_ADDONS_LIST],
+                                       true);
+
+    if (!addonsList.exists())
+      // XXX Irving believes this is broken in the case where there is no
+      // extensions.ini but there are bootstrap extensions (e.g. Android)
+      return null;
+
+    try {
+      let iniFactory = Cc["@mozilla.org/xpcom/ini-parser-factory;1"]
+                         .getService(Ci.nsIINIParserFactory);
+      let parser = iniFactory.createINIParser(addonsList);
+      let keys = parser.getKeys("ExtensionDirs");
+
+      while (keys.hasMore())
+        bundles.push(parser.getString("ExtensionDirs", keys.getNext()));
+    }
+    catch (e) {
+      logger.warn("Failed to parse extensions.ini", e);
+      return null;
+    }
+
+    // Also include the list of active bootstrapped extensions
+    for (let id in XPIProvider.bootstrappedAddons)
+      bundles.push(XPIProvider.bootstrappedAddons[id].descriptor);
+
+    return bundles;
+  },
+
+  /**
+   * Retrieves migration data from the old extensions.rdf database.
+   *
+   * @return an object holding information about what add-ons were previously
+   *         userDisabled and any updated compatibility information
+   */
+  getMigrateDataFromRDF: function(aDbWasMissing) {
+
+    // Migrate data from extensions.rdf
+    let rdffile = FileUtils.getFile(KEY_PROFILEDIR, [FILE_OLD_DATABASE], true);
+    if (!rdffile.exists())
+      return null;
+
+    logger.debug("Migrating data from " + FILE_OLD_DATABASE);
+    let migrateData = {};
+
+    try {
+      let ds = gRDF.GetDataSourceBlocking(Services.io.newFileURI(rdffile).spec);
+      let root = Cc["@mozilla.org/rdf/container;1"].
+                 createInstance(Ci.nsIRDFContainer);
+      root.Init(ds, gRDF.GetResource(RDFURI_ITEM_ROOT));
+      let elements = root.GetElements();
+
+      while (elements.hasMoreElements()) {
+        let source = elements.getNext().QueryInterface(Ci.nsIRDFResource);
+
+        let location = getRDFProperty(ds, source, "installLocation");
+        if (location) {
+          if (!(location in migrateData))
+            migrateData[location] = {};
+          let id = source.ValueUTF8.substring(PREFIX_ITEM_URI.length);
+          migrateData[location][id] = {
+            version: getRDFProperty(ds, source, "version"),
+            userDisabled: false,
+            targetApplications: []
+          }
+
+          let disabled = getRDFProperty(ds, source, "userDisabled");
+          if (disabled == "true" || disabled == "needs-disable")
+            migrateData[location][id].userDisabled = true;
+
+          let targetApps = ds.GetTargets(source, EM_R("targetApplication"),
+                                         true);
+          while (targetApps.hasMoreElements()) {
+            let targetApp = targetApps.getNext()
+                                      .QueryInterface(Ci.nsIRDFResource);
+            let appInfo = {
+              id: getRDFProperty(ds, targetApp, "id")
+            };
+
+            let minVersion = getRDFProperty(ds, targetApp, "updatedMinVersion");
+            if (minVersion) {
+              appInfo.minVersion = minVersion;
+              appInfo.maxVersion = getRDFProperty(ds, targetApp, "updatedMaxVersion");
+            }
+            else {
+              appInfo.minVersion = getRDFProperty(ds, targetApp, "minVersion");
+              appInfo.maxVersion = getRDFProperty(ds, targetApp, "maxVersion");
+            }
+            migrateData[location][id].targetApplications.push(appInfo);
+          }
+        }
+      }
+    }
+    catch (e) {
+      logger.warn("Error reading " + FILE_OLD_DATABASE, e);
+      migrateData = null;
+    }
+
+    return migrateData;
+  },
+
+  /**
+   * Retrieves migration data from a database that has an older or newer schema.
+   *
+   * @return an object holding information about what add-ons were previously
+   *         userDisabled and any updated compatibility information
+   */
+  getMigrateDataFromDatabase: function(aConnection) {
+    let migrateData = {};
+
+    // Attempt to migrate data from a different (even future!) version of the
+    // database
+    try {
+      var stmt = aConnection.createStatement("PRAGMA table_info(addon)");
+
+      const REQUIRED = ["internal_id", "id", "location", "userDisabled",
+                        "installDate", "version"];
+
+      let reqCount = 0;
+      let props = [];
+      for (let row of resultRows(stmt)) {
+        if (REQUIRED.indexOf(row.name) != -1) {
+          reqCount++;
+          props.push(row.name);
+        }
+        else if (DB_METADATA.indexOf(row.name) != -1) {
+          props.push(row.name);
+        }
+        else if (DB_BOOL_METADATA.indexOf(row.name) != -1) {
+          props.push(row.name);
+        }
+      }
+
+      if (reqCount < REQUIRED.length) {
+        logger.error("Unable to read anything useful from the database");
+        return null;
+      }
+      stmt.finalize();
+
+      stmt = aConnection.createStatement("SELECT " + props.join(",") + " FROM addon");
+      for (let row of resultRows(stmt)) {
+        if (!(row.location in migrateData))
+          migrateData[row.location] = {};
+        let addonData = {
+          targetApplications: []
+        }
+        migrateData[row.location][row.id] = addonData;
+
+        props.forEach(function(aProp) {
+          if (aProp == "isForeignInstall")
+            addonData.foreignInstall = (row[aProp] == 1);
+          if (DB_BOOL_METADATA.indexOf(aProp) != -1)
+            addonData[aProp] = row[aProp] == 1;
+          else
+            addonData[aProp] = row[aProp];
+        })
+      }
+
+      var taStmt = aConnection.createStatement("SELECT id, minVersion, " +
+                                                   "maxVersion FROM " +
+                                                   "targetApplication WHERE " +
+                                                   "addon_internal_id=:internal_id");
+
+      for (let location in migrateData) {
+        for (let id in migrateData[location]) {
+          taStmt.params.internal_id = migrateData[location][id].internal_id;
+          delete migrateData[location][id].internal_id;
+          for (let row of resultRows(taStmt)) {
+            migrateData[location][id].targetApplications.push({
+              id: row.id,
+              minVersion: row.minVersion,
+              maxVersion: row.maxVersion
+            });
+          }
+        }
+      }
+    }
+    catch (e) {
+      // An error here means the schema is too different to read
+      logger.error("Error migrating data", e);
+      return null;
+    }
+    finally {
+      if (taStmt)
+        taStmt.finalize();
+      if (stmt)
+        stmt.finalize();
+    }
+
+    return migrateData;
+  },
+
+  /**
+   * Shuts down the database connection and releases all cached objects.
+   * Return: Promise{integer} resolves / rejects with the result of the DB
+   *                          flush after the database is flushed and
+   *                          all cleanup is done
+   */
+  shutdown: function() {
+    logger.debug("shutdown");
+    if (this.initialized) {
+      // If our last database I/O had an error, try one last time to save.
+      if (this.lastError)
+        this.saveChanges();
+
+      this.initialized = false;
+
+      if (this._deferredSave) {
+        AddonManagerPrivate.recordSimpleMeasure(
+            "XPIDB_saves_total", this._deferredSave.totalSaves);
+        AddonManagerPrivate.recordSimpleMeasure(
+            "XPIDB_saves_overlapped", this._deferredSave.overlappedSaves);
+        AddonManagerPrivate.recordSimpleMeasure(
+            "XPIDB_saves_late", this._deferredSave.dirty ? 1 : 0);
+      }
+
+      // Return a promise that any pending writes of the DB are complete and we
+      // are finished cleaning up
+      let flushPromise = this.flush();
+      flushPromise.then(null, error => {
+          logger.error("Flush of XPI database failed", error);
+          AddonManagerPrivate.recordSimpleMeasure("XPIDB_shutdownFlush_failed", 1);
+          // If our last attempt to read or write the DB failed, force a new
+          // extensions.ini to be written to disk on the next startup
+          Services.prefs.setBoolPref(PREF_PENDING_OPERATIONS, true);
+        })
+        .then(count => {
+          // Clear out the cached addons data loaded from JSON
+          delete this.addonDB;
+          delete this._dbPromise;
+          // same for the deferred save
+          delete this._deferredSave;
+          // re-enable the schema version setter
+          delete this._schemaVersionSet;
+        });
+      return flushPromise;
+    }
+    return Promise.resolve(0);
+  },
+
+  /**
+   * Asynchronously list all addons that match the filter function
+   * @param  aFilter
+   *         Function that takes an addon instance and returns
+   *         true if that addon should be included in the selected array
+   * @param  aCallback
+   *         Called back with an array of addons matching aFilter
+   *         or an empty array if none match
+   */
+  getAddonList: function(aFilter, aCallback) {
+    this.asyncLoadDB().then(
+      addonDB => {
+        let addonList = _filterDB(addonDB, aFilter);
+        asyncMap(addonList, getRepositoryAddon, makeSafe(aCallback));
+      })
+    .then(null,
+        error => {
+          logger.error("getAddonList failed", error);
+          makeSafe(aCallback)([]);
+        });
+  },
+
+  /**
+   * (Possibly asynchronously) get the first addon that matches the filter function
+   * @param  aFilter
+   *         Function that takes an addon instance and returns
+   *         true if that addon should be selected
+   * @param  aCallback
+   *         Called back with the addon, or null if no matching addon is found
+   */
+  getAddon: function(aFilter, aCallback) {
+    return this.asyncLoadDB().then(
+      addonDB => {
+        getRepositoryAddon(_findAddon(addonDB, aFilter), makeSafe(aCallback));
+      })
+    .then(null,
+        error => {
+          logger.error("getAddon failed", error);
+          makeSafe(aCallback)(null);
+        });
+  },
+
+  /**
+   * Asynchronously gets an add-on with a particular ID in a particular
+   * install location.
+   *
+   * @param  aId
+   *         The ID of the add-on to retrieve
+   * @param  aLocation
+   *         The name of the install location
+   * @param  aCallback
+   *         A callback to pass the DBAddonInternal to
+   */
+  getAddonInLocation: function(aId, aLocation, aCallback) {
+    this.asyncLoadDB().then(
+        addonDB => getRepositoryAddon(addonDB.get(aLocation + ":" + aId),
+                                      makeSafe(aCallback)));
+  },
+
+  /**
+   * Asynchronously get all the add-ons in a particular install location.
+   *
+   * @param  aLocation
+   *         The name of the install location
+   * @param  aCallback
+   *         A callback to pass the array of DBAddonInternals to
+   */
+  getAddonsInLocation: function(aLocation, aCallback) {
+    this.getAddonList(aAddon => aAddon._installLocation.name == aLocation, aCallback);
+  },
+
+  /**
+   * Asynchronously gets the add-on with the specified ID that is visible.
+   *
+   * @param  aId
+   *         The ID of the add-on to retrieve
+   * @param  aCallback
+   *         A callback to pass the DBAddonInternal to
+   */
+  getVisibleAddonForID: function(aId, aCallback) {
+    this.getAddon(aAddon => ((aAddon.id == aId) && aAddon.visible),
+                  aCallback);
+  },
+
+  /**
+   * Asynchronously gets the visible add-ons, optionally restricting by type.
+   *
+   * @param  aTypes
+   *         An array of types to include or null to include all types
+   * @param  aCallback
+   *         A callback to pass the array of DBAddonInternals to
+   */
+  getVisibleAddons: function(aTypes, aCallback) {
+    this.getAddonList(aAddon => (aAddon.visible &&
+                                 (!aTypes || (aTypes.length == 0) ||
+                                  (aTypes.indexOf(aAddon.type) > -1))),
+                      aCallback);
+  },
+
+  /**
+   * Synchronously gets all add-ons of a particular type.
+   *
+   * @param  aType
+   *         The type of add-on to retrieve
+   * @return an array of DBAddonInternals
+   */
+  getAddonsByType: function(aType) {
+    if (!this.addonDB) {
+      // jank-tastic! Must synchronously load DB if the theme switches from
+      // an XPI theme to a lightweight theme before the DB has loaded,
+      // because we're called from sync XPIProvider.addonChanged
+      logger.warn("Synchronous load of XPI database due to getAddonsByType(" + aType + ")");
+      AddonManagerPrivate.recordSimpleMeasure("XPIDB_lateOpen_byType", XPIProvider.runPhase);
+      this.syncLoadDB(true);
+    }
+    return _filterDB(this.addonDB, aAddon => (aAddon.type == aType));
+  },
+
+  /**
+   * Synchronously gets an add-on with a particular internalName.
+   *
+   * @param  aInternalName
+   *         The internalName of the add-on to retrieve
+   * @return a DBAddonInternal
+   */
+  getVisibleAddonForInternalName: function(aInternalName) {
+    if (!this.addonDB) {
+      // This may be called when the DB hasn't otherwise been loaded
+      logger.warn("Synchronous load of XPI database due to getVisibleAddonForInternalName");
+      AddonManagerPrivate.recordSimpleMeasure("XPIDB_lateOpen_forInternalName",
+          XPIProvider.runPhase);
+      this.syncLoadDB(true);
+    }
+
+    return _findAddon(this.addonDB,
+                      aAddon => aAddon.visible &&
+                                (aAddon.internalName == aInternalName));
+  },
+
+  /**
+   * Asynchronously gets all add-ons with pending operations.
+   *
+   * @param  aTypes
+   *         The types of add-ons to retrieve or null to get all types
+   * @param  aCallback
+   *         A callback to pass the array of DBAddonInternal to
+   */
+  getVisibleAddonsWithPendingOperations: function(aTypes, aCallback) {
+    this.getAddonList(
+        aAddon => (aAddon.visible &&
+                   (aAddon.pendingUninstall ||
+                    // Logic here is tricky. If we're active but disabled,
+                    // we're pending disable; !active && !disabled, we're pending enable
+                    (aAddon.active == aAddon.disabled)) &&
+                   (!aTypes || (aTypes.length == 0) || (aTypes.indexOf(aAddon.type) > -1))),
+        aCallback);
+  },
+
+  /**
+   * Asynchronously get an add-on by its Sync GUID.
+   *
+   * @param  aGUID
+   *         Sync GUID of add-on to fetch
+   * @param  aCallback
+   *         A callback to pass the DBAddonInternal record to. Receives null
+   *         if no add-on with that GUID is found.
+   *
+   */
+  getAddonBySyncGUID: function(aGUID, aCallback) {
+    this.getAddon(aAddon => aAddon.syncGUID == aGUID,
+                  aCallback);
+  },
+
+  /**
+   * Synchronously gets all add-ons in the database.
+   * This is only called from the preference observer for the default
+   * compatibility version preference, so we can return an empty list if
+   * we haven't loaded the database yet.
+   *
+   * @return  an array of DBAddonInternals
+   */
+  getAddons: function() {
+    if (!this.addonDB) {
+      return [];
+    }
+    return _filterDB(this.addonDB, aAddon => true);
+  },
+
+  /**
+   * Synchronously adds an AddonInternal's metadata to the database.
+   *
+   * @param  aAddon
+   *         AddonInternal to add
+   * @param  aDescriptor
+   *         The file descriptor of the add-on
+   * @return The DBAddonInternal that was added to the database
+   */
+  addAddonMetadata: function(aAddon, aDescriptor) {
+    if (!this.addonDB) {
+      AddonManagerPrivate.recordSimpleMeasure("XPIDB_lateOpen_addMetadata",
+          XPIProvider.runPhase);
+      this.syncLoadDB(false);
+    }
+
+    let newAddon = new DBAddonInternal(aAddon);
+    newAddon.descriptor = aDescriptor;
+    this.addonDB.set(newAddon._key, newAddon);
+    if (newAddon.visible) {
+      this.makeAddonVisible(newAddon);
+    }
+
+    this.saveChanges();
+    return newAddon;
+  },
+
+  /**
+   * Synchronously updates an add-on's metadata in the database. Currently just
+   * removes and recreates.
+   *
+   * @param  aOldAddon
+   *         The DBAddonInternal to be replaced
+   * @param  aNewAddon
+   *         The new AddonInternal to add
+   * @param  aDescriptor
+   *         The file descriptor of the add-on
+   * @return The DBAddonInternal that was added to the database
+   */
+  updateAddonMetadata: function(aOldAddon, aNewAddon, aDescriptor) {
+    this.removeAddonMetadata(aOldAddon);
+    aNewAddon.syncGUID = aOldAddon.syncGUID;
+    aNewAddon.installDate = aOldAddon.installDate;
+    aNewAddon.applyBackgroundUpdates = aOldAddon.applyBackgroundUpdates;
+    aNewAddon.foreignInstall = aOldAddon.foreignInstall;
+    aNewAddon.seen = aOldAddon.seen;
+    aNewAddon.active = (aNewAddon.visible && !aNewAddon.disabled && !aNewAddon.pendingUninstall);
+
+    // addAddonMetadata does a saveChanges()
+    return this.addAddonMetadata(aNewAddon, aDescriptor);
+  },
+
+  /**
+   * Synchronously removes an add-on from the database.
+   *
+   * @param  aAddon
+   *         The DBAddonInternal being removed
+   */
+  removeAddonMetadata: function(aAddon) {
+    this.addonDB.delete(aAddon._key);
+    this.saveChanges();
+  },
+
+  /**
+   * Synchronously marks a DBAddonInternal as visible marking all other
+   * instances with the same ID as not visible.
+   *
+   * @param  aAddon
+   *         The DBAddonInternal to make visible
+   */
+  makeAddonVisible: function(aAddon) {
+    logger.debug("Make addon " + aAddon._key + " visible");
+    for (let [, otherAddon] of this.addonDB) {
+      if ((otherAddon.id == aAddon.id) && (otherAddon._key != aAddon._key)) {
+        logger.debug("Hide addon " + otherAddon._key);
+        otherAddon.visible = false;
+        otherAddon.active = false;
+      }
+    }
+    aAddon.visible = true;
+    this.saveChanges();
+  },
+
+  /**
+   * Synchronously sets properties for an add-on.
+   *
+   * @param  aAddon
+   *         The DBAddonInternal being updated
+   * @param  aProperties
+   *         A dictionary of properties to set
+   */
+  setAddonProperties: function(aAddon, aProperties) {
+    for (let key in aProperties) {
+      aAddon[key] = aProperties[key];
+    }
+    this.saveChanges();
+  },
+
+  /**
+   * Synchronously sets the Sync GUID for an add-on.
+   * Only called when the database is already loaded.
+   *
+   * @param  aAddon
+   *         The DBAddonInternal being updated
+   * @param  aGUID
+   *         GUID string to set the value to
+   * @throws if another addon already has the specified GUID
+   */
+  setAddonSyncGUID: function(aAddon, aGUID) {
+    // Need to make sure no other addon has this GUID
+    function excludeSyncGUID(otherAddon) {
+      return (otherAddon._key != aAddon._key) && (otherAddon.syncGUID == aGUID);
+    }
+    let otherAddon = _findAddon(this.addonDB, excludeSyncGUID);
+    if (otherAddon) {
+      throw new Error("Addon sync GUID conflict for addon " + aAddon._key +
+          ": " + otherAddon._key + " already has GUID " + aGUID);
+    }
+    aAddon.syncGUID = aGUID;
+    this.saveChanges();
+  },
+
+  /**
+   * Synchronously updates an add-on's active flag in the database.
+   *
+   * @param  aAddon
+   *         The DBAddonInternal to update
+   */
+  updateAddonActive: function(aAddon, aActive) {
+    logger.debug("Updating active state for add-on " + aAddon.id + " to " + aActive);
+
+    aAddon.active = aActive;
+    this.saveChanges();
+  },
+
+  updateAddonsBlockingE10s: function() {
+    let blockE10s = false;
+
+    Preferences.set(PREF_E10S_HAS_NONEXEMPT_ADDON, false);
+    for (let [, addon] of this.addonDB) {
+      let active = (addon.visible && !addon.disabled && !addon.pendingUninstall);
+
+      if (active && XPIProvider.isBlockingE10s(addon)) {
+        blockE10s = true;
+        break;
+      }
+    }
+    Preferences.set(PREF_E10S_BLOCKED_BY_ADDONS, blockE10s);
+  },
+
+  /**
+   * Synchronously calculates and updates all the active flags in the database.
+   */
+  updateActiveAddons: function() {
+    if (!this.addonDB) {
+      logger.warn("updateActiveAddons called when DB isn't loaded");
+      // force the DB to load
+      AddonManagerPrivate.recordSimpleMeasure("XPIDB_lateOpen_updateActive",
+          XPIProvider.runPhase);
+      this.syncLoadDB(true);
+    }
+    logger.debug("Updating add-on states");
+    for (let [, addon] of this.addonDB) {
+      let newActive = (addon.visible && !addon.disabled && !addon.pendingUninstall);
+      if (newActive != addon.active) {
+        addon.active = newActive;
+        this.saveChanges();
+      }
+    }
+  },
+
+  /**
+   * Writes out the XPI add-ons list for the platform to read.
+   * @return true if the file was successfully updated, false otherwise
+   */
+  writeAddonsList: function() {
+    if (!this.addonDB) {
+      // force the DB to load
+      AddonManagerPrivate.recordSimpleMeasure("XPIDB_lateOpen_writeList",
+          XPIProvider.runPhase);
+      this.syncLoadDB(true);
+    }
+    Services.appinfo.invalidateCachesOnRestart();
+
+    let addonsList = FileUtils.getFile(KEY_PROFILEDIR, [FILE_XPI_ADDONS_LIST],
+                                       true);
+    let enabledAddons = [];
+    let text = "[ExtensionDirs]\r\n";
+    let count = 0;
+    let fullCount = 0;
+
+    let activeAddons = _filterDB(
+      this.addonDB,
+      aAddon => aAddon.active && !aAddon.bootstrap && (aAddon.type != "theme"));
+
+    for (let row of activeAddons) {
+      text += "Extension" + (count++) + "=" + row.descriptor + "\r\n";
+      enabledAddons.push(encodeURIComponent(row.id) + ":" +
+                         encodeURIComponent(row.version));
+    }
+    fullCount += count;
+
+    // The selected skin may come from an inactive theme (the default theme
+    // when a lightweight theme is applied for example)
+    text += "\r\n[ThemeDirs]\r\n";
+
+    let dssEnabled = false;
+    try {
+      dssEnabled = Services.prefs.getBoolPref(PREF_EM_DSS_ENABLED);
+    } catch (e) {}
+
+    let themes = [];
+    if (dssEnabled) {
+      themes = _filterDB(this.addonDB, aAddon => aAddon.type == "theme");
+    }
+    else {
+      let activeTheme = _findAddon(
+        this.addonDB,
+        aAddon => (aAddon.type == "theme") &&
+                  (aAddon.internalName == XPIProvider.selectedSkin));
+      if (activeTheme) {
+        themes.push(activeTheme);
+      }
+    }
+
+    if (themes.length > 0) {
+      count = 0;
+      for (let row of themes) {
+        text += "Extension" + (count++) + "=" + row.descriptor + "\r\n";
+        enabledAddons.push(encodeURIComponent(row.id) + ":" +
+                           encodeURIComponent(row.version));
+      }
+      fullCount += count;
+    }
+
+    text += "\r\n[MultiprocessIncompatibleExtensions]\r\n";
+
+    count = 0;
+    for (let row of activeAddons) {
+      if (!row.multiprocessCompatible) {
+        text += "Extension" + (count++) + "=" + row.id + "\r\n";
+      }
+    }
+
+    if (fullCount > 0) {
+      logger.debug("Writing add-ons list");
+
+      try {
+        let addonsListTmp = FileUtils.getFile(KEY_PROFILEDIR, [FILE_XPI_ADDONS_LIST + ".tmp"],
+                                              true);
+        var fos = FileUtils.openFileOutputStream(addonsListTmp);
+        fos.write(text, text.length);
+        fos.close();
+        addonsListTmp.moveTo(addonsListTmp.parent, FILE_XPI_ADDONS_LIST);
+
+        Services.prefs.setCharPref(PREF_EM_ENABLED_ADDONS, enabledAddons.join(","));
+      }
+      catch (e) {
+        logger.error("Failed to write add-ons list to profile directory", e);
+        return false;
+      }
+    }
+    else {
+      if (addonsList.exists()) {
+        logger.debug("Deleting add-ons list");
+        try {
+          addonsList.remove(false);
+        }
+        catch (e) {
+          logger.error("Failed to remove " + addonsList.path, e);
+          return false;
+        }
+      }
+
+      Services.prefs.clearUserPref(PREF_EM_ENABLED_ADDONS);
+    }
+    return true;
+  }
+};
+
+this.XPIDatabaseReconcile = {
+  /**
+   * Returns a map of ID -> add-on. When the same add-on ID exists in multiple
+   * install locations the highest priority location is chosen.
+   */
+  flattenByID(addonMap, hideLocation) {
+    let map = new Map();
+
+    for (let installLocation of XPIProvider.installLocations) {
+      if (installLocation.name == hideLocation)
+        continue;
+
+      let locationMap = addonMap.get(installLocation.name);
+      if (!locationMap)
+        continue;
+
+      for (let [id, addon] of locationMap) {
+        if (!map.has(id))
+          map.set(id, addon);
+      }
+    }
+
+    return map;
+  },
+
+  /**
+   * Finds the visible add-ons from the map.
+   */
+  getVisibleAddons(addonMap) {
+    let map = new Map();
+
+    for (let [location, addons] of addonMap) {
+      for (let [id, addon] of addons) {
+        if (!addon.visible)
+          continue;
+
+        if (map.has(id)) {
+          logger.warn("Previous database listed more than one visible add-on with id " + id);
+          continue;
+        }
+
+        map.set(id, addon);
+      }
+    }
+
+    return map;
+  },
+
+  /**
+   * Called to add the metadata for an add-on in one of the install locations
+   * to the database. This can be called in three different cases. Either an
+   * add-on has been dropped into the location from outside of Firefox, or
+   * an add-on has been installed through the application, or the database
+   * has been upgraded or become corrupt and add-on data has to be reloaded
+   * into it.
+   *
+   * @param  aInstallLocation
+   *         The install location containing the add-on
+   * @param  aId
+   *         The ID of the add-on
+   * @param  aAddonState
+   *         The new state of the add-on
+   * @param  aNewAddon
+   *         The manifest for the new add-on if it has already been loaded
+   * @param  aOldAppVersion
+   *         The version of the application last run with this profile or null
+   *         if it is a new profile or the version is unknown
+   * @param  aOldPlatformVersion
+   *         The version of the platform last run with this profile or null
+   *         if it is a new profile or the version is unknown
+   * @param  aMigrateData
+   *         If during startup the database had to be upgraded this will
+   *         contain data that used to be held about this add-on
+   * @return a boolean indicating if flushing caches is required to complete
+   *         changing this add-on
+   */
+  addMetadata(aInstallLocation, aId, aAddonState, aNewAddon, aOldAppVersion,
+              aOldPlatformVersion, aMigrateData) {
+    logger.debug("New add-on " + aId + " installed in " + aInstallLocation.name);
+
+    // If we had staged data for this add-on or we aren't recovering from a
+    // corrupt database and we don't have migration data for this add-on then
+    // this must be a new install.
+    let isNewInstall = (!!aNewAddon) || (!XPIDatabase.activeBundles && !aMigrateData);
+
+    // If it's a new install and we haven't yet loaded the manifest then it
+    // must be something dropped directly into the install location
+    let isDetectedInstall = isNewInstall && !aNewAddon;
+
+    // Load the manifest if necessary and sanity check the add-on ID
+    try {
+      if (!aNewAddon) {
+        // Load the manifest from the add-on.
+        let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+        file.persistentDescriptor = aAddonState.descriptor;
+        aNewAddon = syncLoadManifestFromFile(file, aInstallLocation);
+      }
+      // The add-on in the manifest should match the add-on ID.
+      if (aNewAddon.id != aId) {
+        throw new Error("Invalid addon ID: expected addon ID " + aId +
+                        ", found " + aNewAddon.id + " in manifest");
+      }
+    }
+    catch (e) {
+      logger.warn("addMetadata: Add-on " + aId + " is invalid", e);
+
+      // Remove the invalid add-on from the install location if the install
+      // location isn't locked, no restart will be necessary
+      if (aInstallLocation.isLinkedAddon(aId))
+        logger.warn("Not uninstalling invalid item because it is a proxy file");
+      else if (aInstallLocation.locked)
+        logger.warn("Could not uninstall invalid item from locked install location");
+      else
+        aInstallLocation.uninstallAddon(aId);
+      return null;
+    }
+
+    // Update the AddonInternal properties.
+    aNewAddon.installDate = aAddonState.mtime;
+    aNewAddon.updateDate = aAddonState.mtime;
+
+    // Assume that add-ons in the system add-ons install location aren't
+    // foreign and should default to enabled.
+    aNewAddon.foreignInstall = isDetectedInstall &&
+                               aInstallLocation.name != KEY_APP_SYSTEM_ADDONS &&
+                               aInstallLocation.name != KEY_APP_SYSTEM_DEFAULTS;
+
+    // appDisabled depends on whether the add-on is a foreignInstall so update
+    aNewAddon.appDisabled = !isUsableAddon(aNewAddon);
+
+    if (aMigrateData) {
+      // If there is migration data then apply it.
+      logger.debug("Migrating data from old database");
+
+      DB_MIGRATE_METADATA.forEach(function(aProp) {
+        // A theme's disabled state is determined by the selected theme
+        // preference which is read in loadManifestFromRDF
+        if (aProp == "userDisabled" && aNewAddon.type == "theme")
+          return;
+
+        if (aProp in aMigrateData)
+          aNewAddon[aProp] = aMigrateData[aProp];
+      });
+
+      // Force all non-profile add-ons to be foreignInstalls since they can't
+      // have been installed through the API
+      aNewAddon.foreignInstall |= aInstallLocation.name != KEY_APP_PROFILE;
+
+      // Some properties should only be migrated if the add-on hasn't changed.
+      // The version property isn't a perfect check for this but covers the
+      // vast majority of cases.
+      if (aMigrateData.version == aNewAddon.version) {
+        logger.debug("Migrating compatibility info");
+        if ("targetApplications" in aMigrateData)
+          aNewAddon.applyCompatibilityUpdate(aMigrateData, true);
+      }
+
+      // Since the DB schema has changed make sure softDisabled is correct
+      applyBlocklistChanges(aNewAddon, aNewAddon, aOldAppVersion,
+                            aOldPlatformVersion);
+    }
+
+    // The default theme is never a foreign install
+    if (aNewAddon.type == "theme" && aNewAddon.internalName == XPIProvider.defaultSkin)
+      aNewAddon.foreignInstall = false;
+
+    if (isDetectedInstall && aNewAddon.foreignInstall) {
+      // If the add-on is a foreign install and is in a scope where add-ons
+      // that were dropped in should default to disabled then disable it
+      let disablingScopes = Preferences.get(PREF_EM_AUTO_DISABLED_SCOPES, 0);
+      if (aInstallLocation.scope & disablingScopes) {
+        logger.warn("Disabling foreign installed add-on " + aNewAddon.id + " in "
+            + aInstallLocation.name);
+        aNewAddon.userDisabled = true;
+
+        // If we don't have an old app version then this is a new profile in
+        // which case just mark any sideloaded add-ons as already seen.
+        aNewAddon.seen = !aOldAppVersion;
+      }
+    }
+
+    return XPIDatabase.addAddonMetadata(aNewAddon, aAddonState.descriptor);
+  },
+
+  /**
+   * Called when an add-on has been removed.
+   *
+   * @param  aOldAddon
+   *         The AddonInternal as it appeared the last time the application
+   *         ran
+   * @return a boolean indicating if flushing caches is required to complete
+   *         changing this add-on
+   */
+  removeMetadata(aOldAddon) {
+    // This add-on has disappeared
+    logger.debug("Add-on " + aOldAddon.id + " removed from " + aOldAddon.location);
+    XPIDatabase.removeAddonMetadata(aOldAddon);
+  },
+
+  /**
+   * Updates an add-on's metadata and determines if a restart of the
+   * application is necessary. This is called when either the add-on's
+   * install directory path or last modified time has changed.
+   *
+   * @param  aInstallLocation
+   *         The install location containing the add-on
+   * @param  aOldAddon
+   *         The AddonInternal as it appeared the last time the application
+   *         ran
+   * @param  aAddonState
+   *         The new state of the add-on
+   * @param  aNewAddon
+   *         The manifest for the new add-on if it has already been loaded
+   * @return a boolean indicating if flushing caches is required to complete
+   *         changing this add-on
+   */
+  updateMetadata(aInstallLocation, aOldAddon, aAddonState, aNewAddon) {
+    logger.debug("Add-on " + aOldAddon.id + " modified in " + aInstallLocation.name);
+
+    try {
+      // If there isn't an updated install manifest for this add-on then load it.
+      if (!aNewAddon) {
+        let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+        file.persistentDescriptor = aAddonState.descriptor;
+        aNewAddon = syncLoadManifestFromFile(file, aInstallLocation);
+        applyBlocklistChanges(aOldAddon, aNewAddon);
+
+        // Carry over any pendingUninstall state to add-ons modified directly
+        // in the profile. This is important when the attempt to remove the
+        // add-on in processPendingFileChanges failed and caused an mtime
+        // change to the add-ons files.
+        aNewAddon.pendingUninstall = aOldAddon.pendingUninstall;
+      }
+
+      // The ID in the manifest that was loaded must match the ID of the old
+      // add-on.
+      if (aNewAddon.id != aOldAddon.id)
+        throw new Error("Incorrect id in install manifest for existing add-on " + aOldAddon.id);
+    }
+    catch (e) {
+      logger.warn("updateMetadata: Add-on " + aOldAddon.id + " is invalid", e);
+      XPIDatabase.removeAddonMetadata(aOldAddon);
+      XPIStates.removeAddon(aOldAddon.location, aOldAddon.id);
+      if (!aInstallLocation.locked)
+        aInstallLocation.uninstallAddon(aOldAddon.id);
+      else
+        logger.warn("Could not uninstall invalid item from locked install location");
+
+      return null;
+    }
+
+    // Set the additional properties on the new AddonInternal
+    aNewAddon.updateDate = aAddonState.mtime;
+
+    // Update the database
+    return XPIDatabase.updateAddonMetadata(aOldAddon, aNewAddon, aAddonState.descriptor);
+  },
+
+  /**
+   * Updates an add-on's descriptor for when the add-on has moved in the
+   * filesystem but hasn't changed in any other way.
+   *
+   * @param  aInstallLocation
+   *         The install location containing the add-on
+   * @param  aOldAddon
+   *         The AddonInternal as it appeared the last time the application
+   *         ran
+   * @param  aAddonState
+   *         The new state of the add-on
+   * @return a boolean indicating if flushing caches is required to complete
+   *         changing this add-on
+   */
+  updateDescriptor(aInstallLocation, aOldAddon, aAddonState) {
+    logger.debug("Add-on " + aOldAddon.id + " moved to " + aAddonState.descriptor);
+    aOldAddon.descriptor = aAddonState.descriptor;
+    aOldAddon._sourceBundle.persistentDescriptor = aAddonState.descriptor;
+
+    return aOldAddon;
+  },
+
+  /**
+   * Called when no change has been detected for an add-on's metadata but the
+   * application has changed so compatibility may have changed.
+   *
+   * @param  aInstallLocation
+   *         The install location containing the add-on
+   * @param  aOldAddon
+   *         The AddonInternal as it appeared the last time the application
+   *         ran
+   * @param  aAddonState
+   *         The new state of the add-on
+   * @param  aOldAppVersion
+   *         The version of the application last run with this profile or null
+   *         if it is a new profile or the version is unknown
+   * @param  aOldPlatformVersion
+   *         The version of the platform last run with this profile or null
+   *         if it is a new profile or the version is unknown
+   * @param  aReloadMetadata
+   *         A boolean which indicates whether metadata should be reloaded from
+   *         the addon manifests. Default to false.
+   * @return the new addon.
+   */
+  updateCompatibility(aInstallLocation, aOldAddon, aAddonState, aOldAppVersion,
+                      aOldPlatformVersion, aReloadMetadata) {
+    logger.debug("Updating compatibility for add-on " + aOldAddon.id + " in " + aInstallLocation.name);
+
+    // If updating from a version of the app that didn't support signedState
+    // then fetch that property now
+    if (aOldAddon.signedState === undefined && ADDON_SIGNING &&
+        SIGNED_TYPES.has(aOldAddon.type)) {
+      let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+      file.persistentDescriptor = aAddonState.descriptor;
+      let manifest = syncLoadManifestFromFile(file, aInstallLocation);
+      aOldAddon.signedState = manifest.signedState;
+    }
+
+    // May be updating from a version of the app that didn't support all the
+    // properties of the currently-installed add-ons.
+    if (aReloadMetadata) {
+      let file = new nsIFile()
+      file.persistentDescriptor = aAddonState.descriptor;
+      let manifest = syncLoadManifestFromFile(file, aInstallLocation);
+
+      // Avoid re-reading these properties from manifest,
+      // use existing addon instead.
+      // TODO - consider re-scanning for targetApplications.
+      let remove = ["syncGUID", "foreignInstall", "visible", "active",
+                    "userDisabled", "applyBackgroundUpdates", "sourceURI",
+                    "releaseNotesURI", "targetApplications"];
+
+      let props = PROP_JSON_FIELDS.filter(a => !remove.includes(a));
+      copyProperties(manifest, props, aOldAddon);
+    }
+
+    // This updates the addon's JSON cached data in place
+    applyBlocklistChanges(aOldAddon, aOldAddon, aOldAppVersion,
+                          aOldPlatformVersion);
+    aOldAddon.appDisabled = !isUsableAddon(aOldAddon);
+
+    return aOldAddon;
+  },
+
+  /**
+   * Compares the add-ons that are currently installed to those that were
+   * known to be installed when the application last ran and applies any
+   * changes found to the database. Also sends "startupcache-invalidate" signal to
+   * observerservice if it detects that data may have changed.
+   * Always called after XPIProviderUtils.js and extensions.json have been loaded.
+   *
+   * @param  aManifests
+   *         A dictionary of cached AddonInstalls for add-ons that have been
+   *         installed
+   * @param  aUpdateCompatibility
+   *         true to update add-ons appDisabled property when the application
+   *         version has changed
+   * @param  aOldAppVersion
+   *         The version of the application last run with this profile or null
+   *         if it is a new profile or the version is unknown
+   * @param  aOldPlatformVersion
+   *         The version of the platform last run with this profile or null
+   *         if it is a new profile or the version is unknown
+   * @param  aSchemaChange
+   *         The schema has changed and all add-on manifests should be re-read.
+   * @return a boolean indicating if a change requiring flushing the caches was
+   *         detected
+   */
+  processFileChanges(aManifests, aUpdateCompatibility, aOldAppVersion, aOldPlatformVersion,
+                     aSchemaChange) {
+    let loadedManifest = (aInstallLocation, aId) => {
+      if (!(aInstallLocation.name in aManifests))
+        return null;
+      if (!(aId in aManifests[aInstallLocation.name]))
+        return null;
+      return aManifests[aInstallLocation.name][aId];
+    };
+
+    // Add-ons loaded from the database can have an uninitialized _sourceBundle
+    // if the descriptor was invalid. Swallow that error and say they don't exist.
+    let exists = (aAddon) => {
+      try {
+        return aAddon._sourceBundle.exists();
+      }
+      catch (e) {
+        if (e.result == Cr.NS_ERROR_NOT_INITIALIZED)
+          return false;
+        throw e;
+      }
+    };
+
+    // Get the previous add-ons from the database and put them into maps by location
+    let previousAddons = new Map();
+    for (let a of XPIDatabase.getAddons()) {
+      let locationAddonMap = previousAddons.get(a.location);
+      if (!locationAddonMap) {
+        locationAddonMap = new Map();
+        previousAddons.set(a.location, locationAddonMap);
+      }
+      locationAddonMap.set(a.id, a);
+    }
+
+    // Build the list of current add-ons into similar maps. When add-ons are still
+    // present we re-use the add-on objects from the database and update their
+    // details directly
+    let currentAddons = new Map();
+    for (let installLocation of XPIProvider.installLocations) {
+      let locationAddonMap = new Map();
+      currentAddons.set(installLocation.name, locationAddonMap);
+
+      // Get all the on-disk XPI states for this location, and keep track of which
+      // ones we see in the database.
+      let states = XPIStates.getLocation(installLocation.name);
+
+      // Iterate through the add-ons installed the last time the application
+      // ran
+      let dbAddons = previousAddons.get(installLocation.name);
+      if (dbAddons) {
+        for (let [id, oldAddon] of dbAddons) {
+          // Check if the add-on is still installed
+          let xpiState = states && states.get(id);
+          if (xpiState) {
+            // Here the add-on was present in the database and on disk
+            recordAddonTelemetry(oldAddon);
+
+            // Check if the add-on has been changed outside the XPI provider
+            if (oldAddon.updateDate != xpiState.mtime) {
+              // Did time change in the wrong direction?
+              if (xpiState.mtime < oldAddon.updateDate) {
+                XPIProvider.setTelemetry(oldAddon.id, "olderFile", {
+                  name: XPIProvider._mostRecentlyModifiedFile[id],
+                  mtime: xpiState.mtime,
+                  oldtime: oldAddon.updateDate
+                });
+              } else {
+                XPIProvider.setTelemetry(oldAddon.id, "modifiedFile",
+                                         XPIProvider._mostRecentlyModifiedFile[id]);
+              }
+            }
+
+            // The add-on has changed if the modification time has changed, if
+            // we have an updated manifest for it, or if the schema version has
+            // changed.
+            //
+            // Also reload the metadata for add-ons in the application directory
+            // when the application version has changed.
+            let newAddon = loadedManifest(installLocation, id);
+            if (newAddon || oldAddon.updateDate != xpiState.mtime ||
+                (aUpdateCompatibility && (installLocation.name == KEY_APP_GLOBAL ||
+                                          installLocation.name == KEY_APP_SYSTEM_DEFAULTS))) {
+              newAddon = this.updateMetadata(installLocation, oldAddon, xpiState, newAddon);
+            }
+            else if (oldAddon.descriptor != xpiState.descriptor) {
+              newAddon = this.updateDescriptor(installLocation, oldAddon, xpiState);
+            }
+            // Check compatility when the application version and/or schema
+            // version has changed. A schema change also reloads metadata from
+            // the manifests.
+            else if (aUpdateCompatibility || aSchemaChange) {
+              newAddon = this.updateCompatibility(installLocation, oldAddon, xpiState,
+                                                  aOldAppVersion, aOldPlatformVersion,
+                                                  aSchemaChange);
+            }
+            else {
+              // No change
+              newAddon = oldAddon;
+            }
+
+            if (newAddon)
+              locationAddonMap.set(newAddon.id, newAddon);
+          }
+          else {
+            // The add-on is in the DB, but not in xpiState (and thus not on disk).
+            this.removeMetadata(oldAddon);
+          }
+        }
+      }
+
+      // Any add-on in our current location that we haven't seen needs to
+      // be added to the database.
+      // Get the migration data for this install location so we can include that as
+      // we add, in case this is a database upgrade or rebuild.
+      let locMigrateData = {};
+      if (XPIDatabase.migrateData && installLocation.name in XPIDatabase.migrateData)
+        locMigrateData = XPIDatabase.migrateData[installLocation.name];
+
+      if (states) {
+        for (let [id, xpiState] of states) {
+          if (locationAddonMap.has(id))
+            continue;
+          let migrateData = id in locMigrateData ? locMigrateData[id] : null;
+          let newAddon = loadedManifest(installLocation, id);
+          let addon = this.addMetadata(installLocation, id, xpiState, newAddon,
+                                       aOldAppVersion, aOldPlatformVersion, migrateData);
+          if (addon)
+            locationAddonMap.set(addon.id, addon);
+        }
+      }
+    }
+
+    // previousAddons may contain locations where the database contains add-ons
+    // but the browser is no longer configured to use that location. The metadata
+    // for those add-ons must be removed from the database.
+    for (let [locationName, addons] of previousAddons) {
+      if (!currentAddons.has(locationName)) {
+        for (let [id, oldAddon] of addons)
+          this.removeMetadata(oldAddon);
+      }
+    }
+
+    // Validate the updated system add-ons
+    let systemAddonLocation = XPIProvider.installLocationsByName[KEY_APP_SYSTEM_ADDONS];
+    let addons = currentAddons.get(KEY_APP_SYSTEM_ADDONS) || new Map();
+
+    let hideLocation;
+
+    if (!systemAddonLocation.isValid(addons)) {
+      // Hide the system add-on updates if any are invalid.
+      logger.info("One or more updated system add-ons invalid, falling back to defaults.");
+      hideLocation = KEY_APP_SYSTEM_ADDONS;
+    }
+
+    let previousVisible = this.getVisibleAddons(previousAddons);
+    let currentVisible = this.flattenByID(currentAddons, hideLocation);
+    let sawActiveTheme = false;
+    XPIProvider.bootstrappedAddons = {};
+
+    // Pass over the new set of visible add-ons, record any changes that occured
+    // during startup and call bootstrap install/uninstall scripts as necessary
+    for (let [id, currentAddon] of currentVisible) {
+      let previousAddon = previousVisible.get(id);
+
+      // Note if any visible add-on is not in the application install location
+      if (currentAddon._installLocation.name != KEY_APP_GLOBAL)
+        XPIProvider.allAppGlobal = false;
+
+      let isActive = !currentAddon.disabled;
+      let wasActive = previousAddon ? previousAddon.active : currentAddon.active
+
+      if (!previousAddon) {
+        // If we had a manifest for this add-on it was a staged install and
+        // so wasn't something recovered from a corrupt database
+        let wasStaged = !!loadedManifest(currentAddon._installLocation, id);
+
+        // We might be recovering from a corrupt database, if so use the
+        // list of known active add-ons to update the new add-on
+        if (!wasStaged && XPIDatabase.activeBundles) {
+          // For themes we know which is active by the current skin setting
+          if (currentAddon.type == "theme")
+            isActive = currentAddon.internalName == XPIProvider.currentSkin;
+          else
+            isActive = XPIDatabase.activeBundles.indexOf(currentAddon.descriptor) != -1;
+
+          // If the add-on wasn't active and it isn't already disabled in some way
+          // then it was probably either softDisabled or userDisabled
+          if (!isActive && !currentAddon.disabled) {
+            // If the add-on is softblocked then assume it is softDisabled
+            if (currentAddon.blocklistState == Blocklist.STATE_SOFTBLOCKED)
+              currentAddon.softDisabled = true;
+            else
+              currentAddon.userDisabled = true;
+          }
+        }
+        else {
+          // This is a new install
+          if (currentAddon.foreignInstall)
+            AddonManagerPrivate.addStartupChange(AddonManager.STARTUP_CHANGE_INSTALLED, id);
+
+          if (currentAddon.bootstrap) {
+            AddonManagerPrivate.addStartupChange(AddonManager.STARTUP_CHANGE_INSTALLED, id);
+            // Visible bootstrapped add-ons need to have their install method called
+            XPIProvider.callBootstrapMethod(currentAddon, currentAddon._sourceBundle,
+                                            "install", BOOTSTRAP_REASONS.ADDON_INSTALL);
+            if (!isActive)
+              XPIProvider.unloadBootstrapScope(currentAddon.id);
+          }
+        }
+      }
+      else {
+        if (previousAddon !== currentAddon) {
+          // This is an add-on that has changed, either the metadata was reloaded
+          // or the version in a different location has become visible
+          AddonManagerPrivate.addStartupChange(AddonManager.STARTUP_CHANGE_CHANGED, id);
+
+          let installReason = Services.vc.compare(previousAddon.version, currentAddon.version) < 0 ?
+                              BOOTSTRAP_REASONS.ADDON_UPGRADE :
+                              BOOTSTRAP_REASONS.ADDON_DOWNGRADE;
+
+          // If the previous add-on was in a different path, bootstrapped
+          // and still exists then call its uninstall method.
+          if (previousAddon.bootstrap && previousAddon._installLocation &&
+              exists(previousAddon) &&
+              currentAddon._sourceBundle.path != previousAddon._sourceBundle.path) {
+
+            XPIProvider.callBootstrapMethod(previousAddon, previousAddon._sourceBundle,
+                                            "uninstall", installReason,
+                                            { newVersion: currentAddon.version });
+            XPIProvider.unloadBootstrapScope(previousAddon.id);
+          }
+
+          // Make sure to flush the cache when an old add-on has gone away
+          flushChromeCaches();
+
+          if (currentAddon.bootstrap) {
+            // Visible bootstrapped add-ons need to have their install method called
+            let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+            file.persistentDescriptor = currentAddon._sourceBundle.persistentDescriptor;
+            XPIProvider.callBootstrapMethod(currentAddon, file,
+                                            "install", installReason,
+                                            { oldVersion: previousAddon.version });
+            if (currentAddon.disabled)
+              XPIProvider.unloadBootstrapScope(currentAddon.id);
+          }
+        }
+
+        if (isActive != wasActive) {
+          let change = isActive ? AddonManager.STARTUP_CHANGE_ENABLED
+                                : AddonManager.STARTUP_CHANGE_DISABLED;
+          AddonManagerPrivate.addStartupChange(change, id);
+        }
+      }
+
+      XPIDatabase.makeAddonVisible(currentAddon);
+      currentAddon.active = isActive;
+
+      // Make sure the bootstrap information is up to date for this ID
+      if (currentAddon.bootstrap && currentAddon.active) {
+        XPIProvider.bootstrappedAddons[id] = {
+          version: currentAddon.version,
+          type: currentAddon.type,
+          descriptor: currentAddon._sourceBundle.persistentDescriptor,
+          multiprocessCompatible: currentAddon.multiprocessCompatible,
+          runInSafeMode: canRunInSafeMode(currentAddon),
+          dependencies: currentAddon.dependencies,
+          hasEmbeddedWebExtension: currentAddon.hasEmbeddedWebExtension,
+        };
+      }
+
+      if (currentAddon.active && currentAddon.internalName == XPIProvider.selectedSkin)
+        sawActiveTheme = true;
+    }
+
+    // Pass over the set of previously visible add-ons that have now gone away
+    // and record the change.
+    for (let [id, previousAddon] of previousVisible) {
+      if (currentVisible.has(id))
+        continue;
+
+      // This add-on vanished
+
+      // If the previous add-on was bootstrapped and still exists then call its
+      // uninstall method.
+      if (previousAddon.bootstrap && exists(previousAddon)) {
+        XPIProvider.callBootstrapMethod(previousAddon, previousAddon._sourceBundle,
+                                        "uninstall", BOOTSTRAP_REASONS.ADDON_UNINSTALL);
+        XPIProvider.unloadBootstrapScope(previousAddon.id);
+      }
+      AddonManagerPrivate.addStartupChange(AddonManager.STARTUP_CHANGE_UNINSTALLED, id);
+
+      // Make sure to flush the cache when an old add-on has gone away
+      flushChromeCaches();
+    }
+
+    // Make sure add-ons from hidden locations are marked invisible and inactive
+    let locationAddonMap = currentAddons.get(hideLocation);
+    if (locationAddonMap) {
+      for (let addon of locationAddonMap.values()) {
+        addon.visible = false;
+        addon.active = false;
+      }
+    }
+
+    // If a custom theme is selected and it wasn't seen in the new list of
+    // active add-ons then enable the default theme
+    if (XPIProvider.selectedSkin != XPIProvider.defaultSkin && !sawActiveTheme) {
+      logger.info("Didn't see selected skin " + XPIProvider.selectedSkin);
+      XPIProvider.enableDefaultTheme();
+    }
+
+    // Finally update XPIStates to match everything
+    for (let [locationName, locationAddonMap] of currentAddons) {
+      for (let [id, addon] of locationAddonMap) {
+        let xpiState = XPIStates.getAddon(locationName, id);
+        xpiState.syncWithDB(addon);
+      }
+    }
+    XPIStates.save();
+
+    XPIProvider.persistBootstrappedAddons();
+
+    // Clear out any cached migration data.
+    XPIDatabase.migrateData = null;
+    XPIDatabase.saveChanges();
+
+    return true;
+  },
+}
diff --git a/toolkit/mozapps/webextensions/internal/moz.build b/toolkit/mozapps/webextensions/internal/moz.build
new file mode 100644
index 000000000..28c34f8c9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/internal/moz.build
@@ -0,0 +1,36 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+EXTRA_JS_MODULES.addons += [
+    'AddonLogging.jsm',
+    'AddonRepository.jsm',
+    'AddonRepository_SQLiteMigrator.jsm',
+    'AddonUpdateChecker.jsm',
+    'APIExtensionBootstrap.js',
+    'Content.js',
+    'E10SAddonsRollout.jsm',
+    'GMPProvider.jsm',
+    'LightweightThemeImageOptimizer.jsm',
+    'ProductAddonChecker.jsm',
+    'SpellCheckDictionaryBootstrap.js',
+    'WebExtensionBootstrap.js',
+    'XPIProvider.jsm',
+    'XPIProviderUtils.js',
+]
+
+TESTING_JS_MODULES += [
+    'AddonTestUtils.jsm',
+]
+
+# Don't ship unused providers on Android
+if CONFIG['MOZ_WIDGET_TOOLKIT'] != 'android':
+    EXTRA_JS_MODULES.addons += [
+        'PluginProvider.jsm',
+    ]
+
+EXTRA_PP_JS_MODULES.addons += [
+    'AddonConstants.jsm',
+]
diff --git a/toolkit/mozapps/webextensions/jar.mn b/toolkit/mozapps/webextensions/jar.mn
new file mode 100644
index 000000000..ecf64b7ef
--- /dev/null
+++ b/toolkit/mozapps/webextensions/jar.mn
@@ -0,0 +1,35 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+toolkit.jar:
+#ifndef MOZ_FENNEC
+% content mozapps %content/mozapps/
+* content/mozapps/extensions/extensions.xul                     (content/extensions.xul)
+  content/mozapps/extensions/extensions.css                     (content/extensions.css)
+  content/mozapps/extensions/extensions.js                      (content/extensions.js)
+* content/mozapps/extensions/extensions.xml                     (content/extensions.xml)
+  content/mozapps/extensions/updateinfo.xsl                     (content/updateinfo.xsl)
+  content/mozapps/extensions/about.xul                          (content/about.xul)
+  content/mozapps/extensions/about.js                           (content/about.js)
+  content/mozapps/extensions/list.xul                           (content/list.xul)
+  content/mozapps/extensions/list.js                            (content/list.js)
+  content/mozapps/extensions/blocklist.xul                      (content/blocklist.xul)
+  content/mozapps/extensions/blocklist.js                       (content/blocklist.js)
+  content/mozapps/extensions/blocklist.css                      (content/blocklist.css)
+  content/mozapps/extensions/blocklist.xml                      (content/blocklist.xml)
+* content/mozapps/extensions/update.xul                         (content/update.xul)
+  content/mozapps/extensions/update.js                          (content/update.js)
+  content/mozapps/extensions/eula.xul                           (content/eula.xul)
+  content/mozapps/extensions/eula.js                            (content/eula.js)
+  content/mozapps/extensions/newaddon.xul                       (content/newaddon.xul)
+  content/mozapps/extensions/newaddon.js                        (content/newaddon.js)
+  content/mozapps/extensions/pluginPrefs.xul                    (content/pluginPrefs.xul)
+  content/mozapps/extensions/gmpPrefs.xul                       (content/gmpPrefs.xul)
+  content/mozapps/extensions/OpenH264-license.txt               (content/OpenH264-license.txt)
+#endif
+  content/mozapps/extensions/setting.xml                        (content/setting.xml)
+  content/mozapps/xpinstall/xpinstallConfirm.xul                (content/xpinstallConfirm.xul)
+  content/mozapps/xpinstall/xpinstallConfirm.js                 (content/xpinstallConfirm.js)
+  content/mozapps/xpinstall/xpinstallConfirm.css                (content/xpinstallConfirm.css)
+  content/mozapps/xpinstall/xpinstallItem.xml                   (content/xpinstallItem.xml)
diff --git a/toolkit/mozapps/webextensions/moz.build b/toolkit/mozapps/webextensions/moz.build
new file mode 100644
index 000000000..12640e115
--- /dev/null
+++ b/toolkit/mozapps/webextensions/moz.build
@@ -0,0 +1,66 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SPHINX_TREES['addon-manager'] = 'docs'
+
+if CONFIG['MOZ_BUILD_APP'] == 'mobile/android':
+    DEFINES['MOZ_FENNEC'] = True
+
+DIRS += ['internal']
+TEST_DIRS += ['test']
+
+XPIDL_SOURCES += [
+    'amIAddonManager.idl',
+    'amIAddonPathService.idl',
+    'amIWebInstaller.idl',
+    'amIWebInstallListener.idl',
+]
+
+XPIDL_MODULE = 'extensions'
+
+EXTRA_COMPONENTS += [
+    'addonManager.js',
+    'amContentHandler.js',
+    'amInstallTrigger.js',
+    'amWebAPI.js',
+    'amWebInstallListener.js',
+    'nsBlocklistService.js',
+    'nsBlocklistServiceContent.js',
+]
+
+EXTRA_PP_COMPONENTS += [
+    'extensions.manifest',
+]
+
+EXTRA_JS_MODULES += [
+    'AddonManager.jsm',
+    'ChromeManifestParser.jsm',
+    'DeferredSave.jsm',
+    'LightweightThemeManager.jsm',
+]
+
+JAR_MANIFESTS += ['jar.mn']
+
+EXPORTS.mozilla += [
+    'AddonContentPolicy.h',
+    'AddonManagerWebAPI.h',
+    'AddonPathService.h',
+]
+
+UNIFIED_SOURCES += [
+    'AddonContentPolicy.cpp',
+    'AddonManagerWebAPI.cpp',
+    'AddonPathService.cpp',
+]
+
+LOCAL_INCLUDES += [
+    '/dom/base',
+]
+
+FINAL_LIBRARY = 'xul'
+
+with Files('**'):
+    BUG_COMPONENT = ('Toolkit', 'Add-ons Manager')
diff --git a/toolkit/mozapps/webextensions/nsBlocklistService.js b/toolkit/mozapps/webextensions/nsBlocklistService.js
new file mode 100644
index 000000000..0af90430c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/nsBlocklistService.js
@@ -0,0 +1,1667 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/AppConstants.jsm");
+
+try {
+  // AddonManager.jsm doesn't allow itself to be imported in the child
+  // process. We're used in the child process (for now), so guard against
+  // this.
+  Components.utils.import("resource://gre/modules/AddonManager.jsm");
+  /* globals AddonManagerPrivate*/
+} catch (e) {
+}
+
+XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
+                                  "resource://gre/modules/FileUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "UpdateUtils",
+                                  "resource://gre/modules/UpdateUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "OS",
+                                  "resource://gre/modules/osfile.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ServiceRequest",
+                                  "resource://gre/modules/ServiceRequest.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Task",
+                                  "resource://gre/modules/Task.jsm");
+
+const TOOLKIT_ID                      = "toolkit@mozilla.org";
+const KEY_PROFILEDIR                  = "ProfD";
+const KEY_APPDIR                      = "XCurProcD";
+const FILE_BLOCKLIST                  = "blocklist.xml";
+const PREF_BLOCKLIST_LASTUPDATETIME   = "app.update.lastUpdateTime.blocklist-background-update-timer";
+const PREF_BLOCKLIST_URL              = "extensions.blocklist.url";
+const PREF_BLOCKLIST_ITEM_URL         = "extensions.blocklist.itemURL";
+const PREF_BLOCKLIST_ENABLED          = "extensions.blocklist.enabled";
+const PREF_BLOCKLIST_INTERVAL         = "extensions.blocklist.interval";
+const PREF_BLOCKLIST_LEVEL            = "extensions.blocklist.level";
+const PREF_BLOCKLIST_PINGCOUNTTOTAL   = "extensions.blocklist.pingCountTotal";
+const PREF_BLOCKLIST_PINGCOUNTVERSION = "extensions.blocklist.pingCountVersion";
+const PREF_BLOCKLIST_SUPPRESSUI       = "extensions.blocklist.suppressUI";
+const PREF_ONECRL_VIA_AMO             = "security.onecrl.via.amo";
+const PREF_BLOCKLIST_UPDATE_ENABLED   = "services.blocklist.update_enabled";
+const PREF_GENERAL_USERAGENT_LOCALE   = "general.useragent.locale";
+const PREF_APP_DISTRIBUTION           = "distribution.id";
+const PREF_APP_DISTRIBUTION_VERSION   = "distribution.version";
+const PREF_EM_LOGGING_ENABLED         = "extensions.logging.enabled";
+const XMLURI_BLOCKLIST                = "http://www.mozilla.org/2006/addons-blocklist";
+const XMLURI_PARSE_ERROR              = "http://www.mozilla.org/newlayout/xml/parsererror.xml"
+const UNKNOWN_XPCOM_ABI               = "unknownABI";
+const URI_BLOCKLIST_DIALOG            = "chrome://mozapps/content/extensions/blocklist.xul"
+const DEFAULT_SEVERITY                = 3;
+const DEFAULT_LEVEL                   = 2;
+const MAX_BLOCK_LEVEL                 = 3;
+const SEVERITY_OUTDATED               = 0;
+const VULNERABILITYSTATUS_NONE             = 0;
+const VULNERABILITYSTATUS_UPDATE_AVAILABLE = 1;
+const VULNERABILITYSTATUS_NO_UPDATE        = 2;
+
+const EXTENSION_BLOCK_FILTERS = ["id", "name", "creator", "homepageURL", "updateURL"];
+
+var gLoggingEnabled = null;
+var gBlocklistEnabled = true;
+var gBlocklistLevel = DEFAULT_LEVEL;
+
+XPCOMUtils.defineLazyServiceGetter(this, "gConsole",
+                                   "@mozilla.org/consoleservice;1",
+                                   "nsIConsoleService");
+
+XPCOMUtils.defineLazyServiceGetter(this, "gVersionChecker",
+                                   "@mozilla.org/xpcom/version-comparator;1",
+                                   "nsIVersionComparator");
+
+XPCOMUtils.defineLazyServiceGetter(this, "gCertBlocklistService",
+                                   "@mozilla.org/security/certblocklist;1",
+                                   "nsICertBlocklist");
+
+XPCOMUtils.defineLazyGetter(this, "gPref", function() {
+  return Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefService).
+         QueryInterface(Ci.nsIPrefBranch);
+});
+
+// From appinfo in Services.jsm. It is not possible to use the one in
+// Services.jsm since it will not successfully QueryInterface nsIXULAppInfo in
+// xpcshell tests due to other code calling Services.appinfo before the
+// nsIXULAppInfo is created by the tests.
+XPCOMUtils.defineLazyGetter(this, "gApp", function() {
+  let appinfo = Cc["@mozilla.org/xre/app-info;1"]
+                  .getService(Ci.nsIXULRuntime);
+  try {
+    appinfo.QueryInterface(Ci.nsIXULAppInfo);
+  } catch (ex) {
+    // Not all applications implement nsIXULAppInfo (e.g. xpcshell doesn't).
+    if (!(ex instanceof Components.Exception) ||
+        ex.result != Cr.NS_NOINTERFACE)
+      throw ex;
+  }
+  return appinfo;
+});
+
+XPCOMUtils.defineLazyGetter(this, "gABI", function() {
+  let abi = null;
+  try {
+    abi = gApp.XPCOMABI;
+  }
+  catch (e) {
+    LOG("BlockList Global gABI: XPCOM ABI unknown.");
+  }
+
+  if (AppConstants.platform == "macosx") {
+    // Mac universal build should report a different ABI than either macppc
+    // or mactel.
+    let macutils = Cc["@mozilla.org/xpcom/mac-utils;1"].
+                   getService(Ci.nsIMacUtils);
+
+    if (macutils.isUniversalBinary)
+      abi += "-u-" + macutils.architecturesInBinary;
+  }
+  return abi;
+});
+
+XPCOMUtils.defineLazyGetter(this, "gOSVersion", function() {
+  let osVersion;
+  let sysInfo = Cc["@mozilla.org/system-info;1"].
+                getService(Ci.nsIPropertyBag2);
+  try {
+    osVersion = sysInfo.getProperty("name") + " " + sysInfo.getProperty("version");
+  }
+  catch (e) {
+    LOG("BlockList Global gOSVersion: OS Version unknown.");
+  }
+
+  if (osVersion) {
+    try {
+      osVersion += " (" + sysInfo.getProperty("secondaryLibrary") + ")";
+    }
+    catch (e) {
+      // Not all platforms have a secondary widget library, so an error is nothing to worry about.
+    }
+    osVersion = encodeURIComponent(osVersion);
+  }
+  return osVersion;
+});
+
+// shared code for suppressing bad cert dialogs
+XPCOMUtils.defineLazyGetter(this, "gCertUtils", function() {
+  let temp = { };
+  Components.utils.import("resource://gre/modules/CertUtils.jsm", temp);
+  return temp;
+});
+
+/**
+ * Logs a string to the error console.
+ * @param   string
+ *          The string to write to the error console..
+ */
+function LOG(string) {
+  if (gLoggingEnabled) {
+    dump("*** " + string + "\n");
+    gConsole.logStringMessage(string);
+  }
+}
+
+/**
+ * Gets a preference value, handling the case where there is no default.
+ * @param   func
+ *          The name of the preference function to call, on nsIPrefBranch
+ * @param   preference
+ *          The name of the preference
+ * @param   defaultValue
+ *          The default value to return in the event the preference has
+ *          no setting
+ * @returns The value of the preference, or undefined if there was no
+ *          user or default value.
+ */
+function getPref(func, preference, defaultValue) {
+  try {
+    return gPref[func](preference);
+  }
+  catch (e) {
+  }
+  return defaultValue;
+}
+
+/**
+ * Constructs a URI to a spec.
+ * @param   spec
+ *          The spec to construct a URI to
+ * @returns The nsIURI constructed.
+ */
+function newURI(spec) {
+  var ioServ = Cc["@mozilla.org/network/io-service;1"].
+               getService(Ci.nsIIOService);
+  return ioServ.newURI(spec, null, null);
+}
+
+// Restarts the application checking in with observers first
+function restartApp() {
+  // Notify all windows that an application quit has been requested.
+  var os = Cc["@mozilla.org/observer-service;1"].
+           getService(Ci.nsIObserverService);
+  var cancelQuit = Cc["@mozilla.org/supports-PRBool;1"].
+                   createInstance(Ci.nsISupportsPRBool);
+  os.notifyObservers(cancelQuit, "quit-application-requested", null);
+
+  // Something aborted the quit process.
+  if (cancelQuit.data)
+    return;
+
+  var as = Cc["@mozilla.org/toolkit/app-startup;1"].
+           getService(Ci.nsIAppStartup);
+  as.quit(Ci.nsIAppStartup.eRestart | Ci.nsIAppStartup.eAttemptQuit);
+}
+
+/**
+ * Checks whether this blocklist element is valid for the current OS and ABI.
+ * If the element has an "os" attribute then the current OS must appear in
+ * its comma separated list for the element to be valid. Similarly for the
+ * xpcomabi attribute.
+ */
+function matchesOSABI(blocklistElement) {
+  if (blocklistElement.hasAttribute("os")) {
+    var choices = blocklistElement.getAttribute("os").split(",");
+    if (choices.length > 0 && choices.indexOf(gApp.OS) < 0)
+      return false;
+  }
+
+  if (blocklistElement.hasAttribute("xpcomabi")) {
+    choices = blocklistElement.getAttribute("xpcomabi").split(",");
+    if (choices.length > 0 && choices.indexOf(gApp.XPCOMABI) < 0)
+      return false;
+  }
+
+  return true;
+}
+
+/**
+ * Gets the current value of the locale.  It's possible for this preference to
+ * be localized, so we have to do a little extra work here.  Similar code
+ * exists in nsHttpHandler.cpp when building the UA string.
+ */
+function getLocale() {
+  try {
+      // Get the default branch
+      var defaultPrefs = gPref.getDefaultBranch(null);
+      return defaultPrefs.getComplexValue(PREF_GENERAL_USERAGENT_LOCALE,
+                                          Ci.nsIPrefLocalizedString).data;
+  } catch (e) {}
+
+  return gPref.getCharPref(PREF_GENERAL_USERAGENT_LOCALE);
+}
+
+/* Get the distribution pref values, from defaults only */
+function getDistributionPrefValue(aPrefName) {
+  var prefValue = "default";
+
+  var defaults = gPref.getDefaultBranch(null);
+  try {
+    prefValue = defaults.getCharPref(aPrefName);
+  } catch (e) {
+    // use default when pref not found
+  }
+
+  return prefValue;
+}
+
+/**
+ * Parse a string representation of a regular expression. Needed because we
+ * use the /pattern/flags form (because it's detectable), which is only
+ * supported as a literal in JS.
+ *
+ * @param  aStr
+ *         String representation of regexp
+ * @return RegExp instance
+ */
+function parseRegExp(aStr) {
+  let lastSlash = aStr.lastIndexOf("/");
+  let pattern = aStr.slice(1, lastSlash);
+  let flags = aStr.slice(lastSlash + 1);
+  return new RegExp(pattern, flags);
+}
+
+/**
+ * Manages the Blocklist. The Blocklist is a representation of the contents of
+ * blocklist.xml and allows us to remotely disable / re-enable blocklisted
+ * items managed by the Extension Manager with an item's appDisabled property.
+ * It also blocklists plugins with data from blocklist.xml.
+ */
+
+function Blocklist() {
+  Services.obs.addObserver(this, "xpcom-shutdown", false);
+  Services.obs.addObserver(this, "sessionstore-windows-restored", false);
+  gLoggingEnabled = getPref("getBoolPref", PREF_EM_LOGGING_ENABLED, false);
+  gBlocklistEnabled = getPref("getBoolPref", PREF_BLOCKLIST_ENABLED, true);
+  gBlocklistLevel = Math.min(getPref("getIntPref", PREF_BLOCKLIST_LEVEL, DEFAULT_LEVEL),
+                                     MAX_BLOCK_LEVEL);
+  gPref.addObserver("extensions.blocklist.", this, false);
+  gPref.addObserver(PREF_EM_LOGGING_ENABLED, this, false);
+  this.wrappedJSObject = this;
+  // requests from child processes come in here, see receiveMessage.
+  Services.ppmm.addMessageListener("Blocklist:getPluginBlocklistState", this);
+  Services.ppmm.addMessageListener("Blocklist:content-blocklist-updated", this);
+}
+
+Blocklist.prototype = {
+  /**
+   * Extension ID -> array of Version Ranges
+   * Each value in the version range array is a JS Object that has the
+   * following properties:
+   *   "minVersion"  The minimum version in a version range (default = 0)
+   *   "maxVersion"  The maximum version in a version range (default = *)
+   *   "targetApps"  Application ID -> array of Version Ranges
+   *                 (default = current application ID)
+   *                 Each value in the version range array is a JS Object that
+   *                 has the following properties:
+   *                   "minVersion"  The minimum version in a version range
+   *                                 (default = 0)
+   *                   "maxVersion"  The maximum version in a version range
+   *                                 (default = *)
+   */
+  _addonEntries: null,
+  _gfxEntries: null,
+  _pluginEntries: null,
+
+  shutdown: function() {
+    Services.obs.removeObserver(this, "xpcom-shutdown");
+    Services.ppmm.removeMessageListener("Blocklist:getPluginBlocklistState", this);
+    Services.ppmm.removeMessageListener("Blocklist:content-blocklist-updated", this);
+    gPref.removeObserver("extensions.blocklist.", this);
+    gPref.removeObserver(PREF_EM_LOGGING_ENABLED, this);
+  },
+
+  observe: function(aSubject, aTopic, aData) {
+    switch (aTopic) {
+    case "xpcom-shutdown":
+      this.shutdown();
+      break;
+    case "nsPref:changed":
+      switch (aData) {
+        case PREF_EM_LOGGING_ENABLED:
+          gLoggingEnabled = getPref("getBoolPref", PREF_EM_LOGGING_ENABLED, false);
+          break;
+        case PREF_BLOCKLIST_ENABLED:
+          gBlocklistEnabled = getPref("getBoolPref", PREF_BLOCKLIST_ENABLED, true);
+          this._loadBlocklist();
+          this._blocklistUpdated(null, null);
+          break;
+        case PREF_BLOCKLIST_LEVEL:
+          gBlocklistLevel = Math.min(getPref("getIntPref", PREF_BLOCKLIST_LEVEL, DEFAULT_LEVEL),
+                                     MAX_BLOCK_LEVEL);
+          this._blocklistUpdated(null, null);
+          break;
+      }
+      break;
+    case "sessionstore-windows-restored":
+      Services.obs.removeObserver(this, "sessionstore-windows-restored");
+      this._preloadBlocklist();
+      break;
+    }
+  },
+
+  // Message manager message handlers
+  receiveMessage: function(aMsg) {
+    switch (aMsg.name) {
+      case "Blocklist:getPluginBlocklistState":
+        return this.getPluginBlocklistState(aMsg.data.addonData,
+                                            aMsg.data.appVersion,
+                                            aMsg.data.toolkitVersion);
+      case "Blocklist:content-blocklist-updated":
+        Services.obs.notifyObservers(null, "content-blocklist-updated", null);
+        break;
+      default:
+        throw new Error("Unknown blocklist message received from content: " + aMsg.name);
+    }
+    return undefined;
+  },
+
+  /* See nsIBlocklistService */
+  isAddonBlocklisted: function(addon, appVersion, toolkitVersion) {
+    return this.getAddonBlocklistState(addon, appVersion, toolkitVersion) ==
+                   Ci.nsIBlocklistService.STATE_BLOCKED;
+  },
+
+  /* See nsIBlocklistService */
+  getAddonBlocklistState: function(addon, appVersion, toolkitVersion) {
+    if (!this._isBlocklistLoaded())
+      this._loadBlocklist();
+    return this._getAddonBlocklistState(addon, this._addonEntries,
+                                        appVersion, toolkitVersion);
+  },
+
+  /**
+   * Private version of getAddonBlocklistState that allows the caller to pass in
+   * the add-on blocklist entries to compare against.
+   *
+   * @param   id
+   *          The ID of the item to get the blocklist state for.
+   * @param   version
+   *          The version of the item to get the blocklist state for.
+   * @param   addonEntries
+   *          The add-on blocklist entries to compare against.
+   * @param   appVersion
+   *          The application version to compare to, will use the current
+   *          version if null.
+   * @param   toolkitVersion
+   *          The toolkit version to compare to, will use the current version if
+   *          null.
+   * @returns The blocklist state for the item, one of the STATE constants as
+   *          defined in nsIBlocklistService.
+   */
+  _getAddonBlocklistState: function(addon, addonEntries, appVersion, toolkitVersion) {
+    if (!gBlocklistEnabled)
+      return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
+
+    // Not all applications implement nsIXULAppInfo (e.g. xpcshell doesn't).
+    if (!appVersion && !gApp.version)
+      return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
+
+    if (!appVersion)
+      appVersion = gApp.version;
+    if (!toolkitVersion)
+      toolkitVersion = gApp.platformVersion;
+
+    var blItem = this._findMatchingAddonEntry(addonEntries, addon);
+    if (!blItem)
+      return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
+
+    for (let currentblItem of blItem.versions) {
+      if (currentblItem.includesItem(addon.version, appVersion, toolkitVersion))
+        return currentblItem.severity >= gBlocklistLevel ? Ci.nsIBlocklistService.STATE_BLOCKED :
+                                                       Ci.nsIBlocklistService.STATE_SOFTBLOCKED;
+    }
+    return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
+  },
+
+  /**
+   * Returns the set of prefs of the add-on stored in the blocklist file
+   * (probably to revert them on disabling).
+   * @param addon
+   *        The add-on whose to-be-reset prefs are to be found.
+   */
+  _getAddonPrefs: function(addon) {
+    let entry = this._findMatchingAddonEntry(this._addonEntries, addon);
+    return entry.prefs.slice(0);
+  },
+
+  _findMatchingAddonEntry: function(aAddonEntries, aAddon) {
+    if (!aAddon)
+      return null;
+    // Returns true if the params object passes the constraints set by entry.
+    // (For every non-null property in entry, the same key must exist in
+    // params and value must be the same)
+    function checkEntry(entry, params) {
+      for (let [key, value] of entry) {
+        if (value === null || value === undefined)
+          continue;
+        if (params[key]) {
+          if (value instanceof RegExp) {
+            if (!value.test(params[key])) {
+              return false;
+            }
+          } else if (value !== params[key]) {
+            return false;
+          }
+        } else {
+          return false;
+        }
+      }
+      return true;
+    }
+
+    let params = {};
+    for (let filter of EXTENSION_BLOCK_FILTERS) {
+      params[filter] = aAddon[filter];
+    }
+    if (params.creator)
+      params.creator = params.creator.name;
+    for (let entry of aAddonEntries) {
+      if (checkEntry(entry.attributes, params)) {
+         return entry;
+       }
+     }
+     return null;
+  },
+
+  /* See nsIBlocklistService */
+  getAddonBlocklistURL: function(addon, appVersion, toolkitVersion) {
+    if (!gBlocklistEnabled)
+      return "";
+
+    if (!this._isBlocklistLoaded())
+      this._loadBlocklist();
+
+    let blItem = this._findMatchingAddonEntry(this._addonEntries, addon);
+    if (!blItem || !blItem.blockID)
+      return null;
+
+    return this._createBlocklistURL(blItem.blockID);
+  },
+
+  _createBlocklistURL: function(id) {
+    let url = Services.urlFormatter.formatURLPref(PREF_BLOCKLIST_ITEM_URL);
+    url = url.replace(/%blockID%/g, id);
+
+    return url;
+  },
+
+  notify: function(aTimer) {
+    if (!gBlocklistEnabled)
+      return;
+
+    try {
+      var dsURI = gPref.getCharPref(PREF_BLOCKLIST_URL);
+    }
+    catch (e) {
+      LOG("Blocklist::notify: The " + PREF_BLOCKLIST_URL + " preference" +
+          " is missing!");
+      return;
+    }
+
+    var pingCountVersion = getPref("getIntPref", PREF_BLOCKLIST_PINGCOUNTVERSION, 0);
+    var pingCountTotal = getPref("getIntPref", PREF_BLOCKLIST_PINGCOUNTTOTAL, 1);
+    var daysSinceLastPing = 0;
+    if (pingCountVersion == 0) {
+      daysSinceLastPing = "new";
+    }
+    else {
+      // Seconds in one day is used because nsIUpdateTimerManager stores the
+      // last update time in seconds.
+      let secondsInDay = 60 * 60 * 24;
+      let lastUpdateTime = getPref("getIntPref", PREF_BLOCKLIST_LASTUPDATETIME, 0);
+      if (lastUpdateTime == 0) {
+        daysSinceLastPing = "invalid";
+      }
+      else {
+        let now = Math.round(Date.now() / 1000);
+        daysSinceLastPing = Math.floor((now - lastUpdateTime) / secondsInDay);
+      }
+
+      if (daysSinceLastPing == 0 || daysSinceLastPing == "invalid") {
+        pingCountVersion = pingCountTotal = "invalid";
+      }
+    }
+
+    if (pingCountVersion < 1)
+      pingCountVersion = 1;
+    if (pingCountTotal < 1)
+      pingCountTotal = 1;
+
+    dsURI = dsURI.replace(/%APP_ID%/g, gApp.ID);
+    // Not all applications implement nsIXULAppInfo (e.g. xpcshell doesn't).
+    if (gApp.version)
+      dsURI = dsURI.replace(/%APP_VERSION%/g, gApp.version);
+    dsURI = dsURI.replace(/%PRODUCT%/g, gApp.name);
+    // Not all applications implement nsIXULAppInfo (e.g. xpcshell doesn't).
+    if (gApp.version)
+      dsURI = dsURI.replace(/%VERSION%/g, gApp.version);
+    dsURI = dsURI.replace(/%BUILD_ID%/g, gApp.appBuildID);
+    dsURI = dsURI.replace(/%BUILD_TARGET%/g, gApp.OS + "_" + gABI);
+    dsURI = dsURI.replace(/%OS_VERSION%/g, gOSVersion);
+    dsURI = dsURI.replace(/%LOCALE%/g, getLocale());
+    dsURI = dsURI.replace(/%CHANNEL%/g, UpdateUtils.UpdateChannel);
+    dsURI = dsURI.replace(/%PLATFORM_VERSION%/g, gApp.platformVersion);
+    dsURI = dsURI.replace(/%DISTRIBUTION%/g,
+                      getDistributionPrefValue(PREF_APP_DISTRIBUTION));
+    dsURI = dsURI.replace(/%DISTRIBUTION_VERSION%/g,
+                      getDistributionPrefValue(PREF_APP_DISTRIBUTION_VERSION));
+    dsURI = dsURI.replace(/%PING_COUNT%/g, pingCountVersion);
+    dsURI = dsURI.replace(/%TOTAL_PING_COUNT%/g, pingCountTotal);
+    dsURI = dsURI.replace(/%DAYS_SINCE_LAST_PING%/g, daysSinceLastPing);
+    dsURI = dsURI.replace(/\+/g, "%2B");
+
+    // Under normal operations it will take around 5,883,516 years before the
+    // preferences used to store pingCountVersion and pingCountTotal will rollover
+    // so this code doesn't bother trying to do the "right thing" here.
+    if (pingCountVersion != "invalid") {
+      pingCountVersion++;
+      if (pingCountVersion > 2147483647) {
+        // Rollover to -1 if the value is greater than what is support by an
+        // integer preference. The -1 indicates that the counter has been reset.
+        pingCountVersion = -1;
+      }
+      gPref.setIntPref(PREF_BLOCKLIST_PINGCOUNTVERSION, pingCountVersion);
+    }
+
+    if (pingCountTotal != "invalid") {
+      pingCountTotal++;
+      if (pingCountTotal > 2147483647) {
+        // Rollover to 1 if the value is greater than what is support by an
+        // integer preference.
+        pingCountTotal = -1;
+      }
+      gPref.setIntPref(PREF_BLOCKLIST_PINGCOUNTTOTAL, pingCountTotal);
+    }
+
+    // Verify that the URI is valid
+    try {
+      var uri = newURI(dsURI);
+    }
+    catch (e) {
+      LOG("Blocklist::notify: There was an error creating the blocklist URI\r\n" +
+          "for: " + dsURI + ", error: " + e);
+      return;
+    }
+
+    LOG("Blocklist::notify: Requesting " + uri.spec);
+    let request = new ServiceRequest();
+    request.open("GET", uri.spec, true);
+    request.channel.notificationCallbacks = new gCertUtils.BadCertHandler();
+    request.overrideMimeType("text/xml");
+    request.setRequestHeader("Cache-Control", "no-cache");
+    request.QueryInterface(Components.interfaces.nsIJSXMLHttpRequest);
+
+    request.addEventListener("error", event => this.onXMLError(event), false);
+    request.addEventListener("load", event => this.onXMLLoad(event), false);
+    request.send(null);
+
+    // When the blocklist loads we need to compare it to the current copy so
+    // make sure we have loaded it.
+    if (!this._isBlocklistLoaded())
+      this._loadBlocklist();
+  },
+
+  onXMLLoad: Task.async(function*(aEvent) {
+    let request = aEvent.target;
+    try {
+      gCertUtils.checkCert(request.channel);
+    }
+    catch (e) {
+      LOG("Blocklist::onXMLLoad: " + e);
+      return;
+    }
+    let responseXML = request.responseXML;
+    if (!responseXML || responseXML.documentElement.namespaceURI == XMLURI_PARSE_ERROR ||
+        (request.status != 200 && request.status != 0)) {
+      LOG("Blocklist::onXMLLoad: there was an error during load");
+      return;
+    }
+
+    var oldAddonEntries = this._addonEntries;
+    var oldPluginEntries = this._pluginEntries;
+    this._addonEntries = [];
+    this._gfxEntries = [];
+    this._pluginEntries = [];
+
+    this._loadBlocklistFromString(request.responseText);
+    // We don't inform the users when the graphics blocklist changed at runtime.
+    // However addons and plugins blocking status is refreshed.
+    this._blocklistUpdated(oldAddonEntries, oldPluginEntries);
+
+    try {
+      let path = OS.Path.join(OS.Constants.Path.profileDir, FILE_BLOCKLIST);
+      yield OS.File.writeAtomic(path, request.responseText, {tmpPath: path + ".tmp"});
+    } catch (e) {
+      LOG("Blocklist::onXMLLoad: " + e);
+    }
+  }),
+
+  onXMLError: function(aEvent) {
+    try {
+      var request = aEvent.target;
+      // the following may throw (e.g. a local file or timeout)
+      var status = request.status;
+    }
+    catch (e) {
+      request = aEvent.target.channel.QueryInterface(Ci.nsIRequest);
+      status = request.status;
+    }
+    var statusText = "nsIXMLHttpRequest channel unavailable";
+    // When status is 0 we don't have a valid channel.
+    if (status != 0) {
+      try {
+        statusText = request.statusText;
+      } catch (e) {
+      }
+    }
+    LOG("Blocklist:onError: There was an error loading the blocklist file\r\n" +
+        statusText);
+  },
+
+  /**
+   * Finds the newest blocklist file from the application and the profile and
+   * load it or does nothing if neither exist.
+   */
+  _loadBlocklist: function() {
+    this._addonEntries = [];
+    this._gfxEntries = [];
+    this._pluginEntries = [];
+    var profFile = FileUtils.getFile(KEY_PROFILEDIR, [FILE_BLOCKLIST]);
+    if (profFile.exists()) {
+      this._loadBlocklistFromFile(profFile);
+      return;
+    }
+    var appFile = FileUtils.getFile(KEY_APPDIR, [FILE_BLOCKLIST]);
+    if (appFile.exists()) {
+      this._loadBlocklistFromFile(appFile);
+      return;
+    }
+    LOG("Blocklist::_loadBlocklist: no XML File found");
+  },
+
+  /**
+#    The blocklist XML file looks something like this:
+#
+#    <blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+#      <emItems>
+#        <emItem id="item_1@domain" blockID="i1">
+#          <prefs>
+#            <pref>accessibility.accesskeycausesactivation</pref>
+#            <pref>accessibility.blockautorefresh</pref>
+#          </prefs>
+#          <versionRange minVersion="1.0" maxVersion="2.0.*">
+#            <targetApplication id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}">
+#              <versionRange minVersion="1.5" maxVersion="1.5.*"/>
+#              <versionRange minVersion="1.7" maxVersion="1.7.*"/>
+#            </targetApplication>
+#            <targetApplication id="toolkit@mozilla.org">
+#              <versionRange minVersion="1.9" maxVersion="1.9.*"/>
+#            </targetApplication>
+#          </versionRange>
+#          <versionRange minVersion="3.0" maxVersion="3.0.*">
+#            <targetApplication id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}">
+#              <versionRange minVersion="1.5" maxVersion="1.5.*"/>
+#            </targetApplication>
+#            <targetApplication id="toolkit@mozilla.org">
+#              <versionRange minVersion="1.9" maxVersion="1.9.*"/>
+#            </targetApplication>
+#          </versionRange>
+#        </emItem>
+#        <emItem id="item_2@domain" blockID="i2">
+#          <versionRange minVersion="3.1" maxVersion="4.*"/>
+#        </emItem>
+#        <emItem id="item_3@domain">
+#          <versionRange>
+#            <targetApplication id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}">
+#              <versionRange minVersion="1.5" maxVersion="1.5.*"/>
+#            </targetApplication>
+#          </versionRange>
+#        </emItem>
+#        <emItem id="item_4@domain" blockID="i3">
+#          <versionRange>
+#            <targetApplication>
+#              <versionRange minVersion="1.5" maxVersion="1.5.*"/>
+#            </targetApplication>
+#          </versionRange>
+#        <emItem id="/@badperson\.com$/"/>
+#      </emItems>
+#      <pluginItems>
+#        <pluginItem blockID="i4">
+#          <!-- All match tags must match a plugin to blocklist a plugin -->
+#          <match name="name" exp="some plugin"/>
+#          <match name="description" exp="1[.]2[.]3"/>
+#        </pluginItem>
+#      </pluginItems>
+#      <certItems>
+#        <!-- issuerName is the DER issuer name data base64 encoded... -->
+#        <certItem issuerName="MA0xCzAJBgNVBAMMAmNh">
+#          <!-- ... as is the serial number DER data -->
+#          <serialNumber>AkHVNA==</serialNumber>
+#        </certItem>
+#        <!-- subject is the DER subject name data base64 encoded... -->
+#        <certItem subject="MA0xCzAJBgNVBAMMAmNh" pubKeyHash="/xeHA5s+i9/z9d8qy6JEuE1xGoRYIwgJuTE/lmaGJ7M=">
+#        </certItem>
+#      </certItems>
+#    </blocklist>
+   */
+
+  _loadBlocklistFromFile: function(file) {
+    if (!gBlocklistEnabled) {
+      LOG("Blocklist::_loadBlocklistFromFile: blocklist is disabled");
+      return;
+    }
+
+    let telemetry = Services.telemetry;
+
+    if (this._isBlocklistPreloaded()) {
+      telemetry.getHistogramById("BLOCKLIST_SYNC_FILE_LOAD").add(false);
+      this._loadBlocklistFromString(this._preloadedBlocklistContent);
+      delete this._preloadedBlocklistContent;
+      return;
+    }
+
+    if (!file.exists()) {
+      LOG("Blocklist::_loadBlocklistFromFile: XML File does not exist " + file.path);
+      return;
+    }
+
+    telemetry.getHistogramById("BLOCKLIST_SYNC_FILE_LOAD").add(true);
+
+    let text = "";
+    let fstream = null;
+    let cstream = null;
+
+    try {
+      fstream = Components.classes["@mozilla.org/network/file-input-stream;1"]
+                          .createInstance(Components.interfaces.nsIFileInputStream);
+      cstream = Components.classes["@mozilla.org/intl/converter-input-stream;1"]
+                          .createInstance(Components.interfaces.nsIConverterInputStream);
+
+      fstream.init(file, FileUtils.MODE_RDONLY, FileUtils.PERMS_FILE, 0);
+      cstream.init(fstream, "UTF-8", 0, 0);
+
+      let str = {};
+      let read = 0;
+
+      do {
+        read = cstream.readString(0xffffffff, str); // read as much as we can and put it in str.value
+        text += str.value;
+      } while (read != 0);
+    } catch (e) {
+      LOG("Blocklist::_loadBlocklistFromFile: Failed to load XML file " + e);
+    } finally {
+      if (cstream)
+        cstream.close();
+      if (fstream)
+        fstream.close();
+    }
+
+    if (text)
+        this._loadBlocklistFromString(text);
+  },
+
+  _isBlocklistLoaded: function() {
+    return this._addonEntries != null && this._gfxEntries != null && this._pluginEntries != null;
+  },
+
+  _isBlocklistPreloaded: function() {
+    return this._preloadedBlocklistContent != null;
+  },
+
+  /* Used for testing */
+  _clear: function() {
+    this._addonEntries = null;
+    this._gfxEntries = null;
+    this._pluginEntries = null;
+    this._preloadedBlocklistContent = null;
+  },
+
+  _preloadBlocklist: Task.async(function*() {
+    let profPath = OS.Path.join(OS.Constants.Path.profileDir, FILE_BLOCKLIST);
+    try {
+      yield this._preloadBlocklistFile(profPath);
+      return;
+    } catch (e) {
+      LOG("Blocklist::_preloadBlocklist: Failed to load XML file " + e)
+    }
+
+    var appFile = FileUtils.getFile(KEY_APPDIR, [FILE_BLOCKLIST]);
+    try {
+      yield this._preloadBlocklistFile(appFile.path);
+      return;
+    } catch (e) {
+      LOG("Blocklist::_preloadBlocklist: Failed to load XML file " + e)
+    }
+
+    LOG("Blocklist::_preloadBlocklist: no XML File found");
+  }),
+
+  _preloadBlocklistFile: Task.async(function*(path) {
+    if (this._addonEntries) {
+      // The file has been already loaded.
+      return;
+    }
+
+    if (!gBlocklistEnabled) {
+      LOG("Blocklist::_preloadBlocklistFile: blocklist is disabled");
+      return;
+    }
+
+    let text = yield OS.File.read(path, { encoding: "utf-8" });
+
+    if (!this._addonEntries) {
+      // Store the content only if a sync load has not been performed in the meantime.
+      this._preloadedBlocklistContent = text;
+    }
+  }),
+
+  _loadBlocklistFromString : function(text) {
+    try {
+      var parser = Cc["@mozilla.org/xmlextras/domparser;1"].
+                   createInstance(Ci.nsIDOMParser);
+      var doc = parser.parseFromString(text, "text/xml");
+      if (doc.documentElement.namespaceURI != XMLURI_BLOCKLIST) {
+        LOG("Blocklist::_loadBlocklistFromFile: aborting due to incorrect " +
+            "XML Namespace.\r\nExpected: " + XMLURI_BLOCKLIST + "\r\n" +
+            "Received: " + doc.documentElement.namespaceURI);
+        return;
+      }
+
+      var populateCertBlocklist = getPref("getBoolPref", PREF_ONECRL_VIA_AMO, true);
+
+      var childNodes = doc.documentElement.childNodes;
+      for (let element of childNodes) {
+        if (!(element instanceof Ci.nsIDOMElement))
+          continue;
+        switch (element.localName) {
+        case "emItems":
+          this._addonEntries = this._processItemNodes(element.childNodes, "emItem",
+                                                      this._handleEmItemNode);
+          break;
+        case "pluginItems":
+          // We don't support plugins on b2g.
+          if (AppConstants.MOZ_B2G) {
+            return;
+          }
+          this._pluginEntries = this._processItemNodes(element.childNodes, "pluginItem",
+                                                       this._handlePluginItemNode);
+          break;
+        case "certItems":
+          if (populateCertBlocklist) {
+            this._processItemNodes(element.childNodes, "certItem",
+                                   this._handleCertItemNode.bind(this));
+          }
+          break;
+        case "gfxItems":
+          // Parse as simple list of objects.
+          this._gfxEntries = this._processItemNodes(element.childNodes, "gfxBlacklistEntry",
+                                                    this._handleGfxBlacklistNode);
+          break;
+        default:
+          LOG("Blocklist::_loadBlocklistFromString: ignored entries " + element.localName);
+        }
+      }
+      if (populateCertBlocklist) {
+        gCertBlocklistService.saveEntries();
+      }
+      if (this._gfxEntries.length > 0) {
+        this._notifyObserversBlocklistGFX();
+      }
+    }
+    catch (e) {
+      LOG("Blocklist::_loadBlocklistFromFile: Error constructing blocklist " + e);
+      return;
+    }
+  },
+
+  _processItemNodes: function(itemNodes, itemName, handler) {
+    var result = [];
+    for (var i = 0; i < itemNodes.length; ++i) {
+      var blocklistElement = itemNodes.item(i);
+      if (!(blocklistElement instanceof Ci.nsIDOMElement) ||
+          blocklistElement.localName != itemName)
+        continue;
+
+      handler(blocklistElement, result);
+    }
+    return result;
+  },
+
+  _handleCertItemNode: function(blocklistElement, result) {
+    let issuer = blocklistElement.getAttribute("issuerName");
+    if (issuer) {
+      for (let snElement of blocklistElement.children) {
+        try {
+          gCertBlocklistService.revokeCertByIssuerAndSerial(issuer, snElement.textContent);
+        } catch (e) {
+          // we want to keep trying other elements since missing all items
+          // is worse than missing one
+          LOG("Blocklist::_handleCertItemNode: Error adding revoked cert by Issuer and Serial" + e);
+        }
+      }
+      return;
+    }
+
+    let pubKeyHash = blocklistElement.getAttribute("pubKeyHash");
+    let subject = blocklistElement.getAttribute("subject");
+
+    if (pubKeyHash && subject) {
+      try {
+        gCertBlocklistService.revokeCertBySubjectAndPubKey(subject, pubKeyHash);
+      } catch (e) {
+        LOG("Blocklist::_handleCertItemNode: Error adding revoked cert by Subject and PubKey" + e);
+      }
+    }
+  },
+
+  _handleEmItemNode: function(blocklistElement, result) {
+    if (!matchesOSABI(blocklistElement))
+      return;
+
+    let blockEntry = {
+      versions: [],
+      prefs: [],
+      blockID: null,
+      attributes: new Map()
+      // Atleast one of EXTENSION_BLOCK_FILTERS must get added to attributes
+    };
+
+    // Any filter starting with '/' is interpreted as a regex. So if an attribute
+    // starts with a '/' it must be checked via a regex.
+    function regExpCheck(attr) {
+      return attr.startsWith("/") ? parseRegExp(attr) : attr;
+    }
+
+    for (let filter of EXTENSION_BLOCK_FILTERS) {
+      let attr = blocklistElement.getAttribute(filter);
+      if (attr)
+        blockEntry.attributes.set(filter, regExpCheck(attr));
+    }
+
+    var childNodes = blocklistElement.childNodes;
+
+    for (let x = 0; x < childNodes.length; x++) {
+      var childElement = childNodes.item(x);
+      if (!(childElement instanceof Ci.nsIDOMElement))
+        continue;
+      if (childElement.localName === "prefs") {
+        let prefElements = childElement.childNodes;
+        for (let i = 0; i < prefElements.length; i++) {
+          let prefElement = prefElements.item(i);
+          if (!(prefElement instanceof Ci.nsIDOMElement) ||
+              prefElement.localName !== "pref")
+            continue;
+          blockEntry.prefs.push(prefElement.textContent);
+        }
+      }
+      else if (childElement.localName === "versionRange")
+        blockEntry.versions.push(new BlocklistItemData(childElement));
+    }
+    // if only the extension ID is specified block all versions of the
+    // extension for the current application.
+    if (blockEntry.versions.length == 0)
+      blockEntry.versions.push(new BlocklistItemData(null));
+
+    blockEntry.blockID = blocklistElement.getAttribute("blockID");
+
+    result.push(blockEntry);
+  },
+
+  _handlePluginItemNode: function(blocklistElement, result) {
+    if (!matchesOSABI(blocklistElement))
+      return;
+
+    var matchNodes = blocklistElement.childNodes;
+    var blockEntry = {
+      matches: {},
+      versions: [],
+      blockID: null,
+      infoURL: null,
+    };
+    var hasMatch = false;
+    for (var x = 0; x < matchNodes.length; ++x) {
+      var matchElement = matchNodes.item(x);
+      if (!(matchElement instanceof Ci.nsIDOMElement))
+        continue;
+      if (matchElement.localName == "match") {
+        var name = matchElement.getAttribute("name");
+        var exp = matchElement.getAttribute("exp");
+        try {
+          blockEntry.matches[name] = new RegExp(exp, "m");
+          hasMatch = true;
+        } catch (e) {
+          // Ignore invalid regular expressions
+        }
+      }
+      if (matchElement.localName == "versionRange") {
+        blockEntry.versions.push(new BlocklistItemData(matchElement));
+      }
+      else if (matchElement.localName == "infoURL") {
+        blockEntry.infoURL = matchElement.textContent;
+      }
+    }
+    // Plugin entries require *something* to match to an actual plugin
+    if (!hasMatch)
+      return;
+    // Add a default versionRange if there wasn't one specified
+    if (blockEntry.versions.length == 0)
+      blockEntry.versions.push(new BlocklistItemData(null));
+
+    blockEntry.blockID = blocklistElement.getAttribute("blockID");
+
+    result.push(blockEntry);
+  },
+
+  // <gfxBlacklistEntry blockID="g60">
+  //   <os>WINNT 6.0</os>
+  //   <osversion>14</osversion> currently only used for Android
+  //   <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+  //   <vendor>0x8086</vendor>
+  //   <devices>
+  //     <device>0x2582</device>
+  //     <device>0x2782</device>
+  //   </devices>
+  //   <feature> DIRECT3D_10_LAYERS </feature>
+  //   <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+  //   <driverVersion> 8.52.322.2202 </driverVersion>
+  //   <driverVersionMax> 8.52.322.2202 </driverVersionMax>
+  //   <driverVersionComparator> LESS_THAN_OR_EQUAL </driverVersionComparator>
+  //   <model>foo</model>
+  //   <product>foo</product>
+  //   <manufacturer>foo</manufacturer>
+  //   <hardware>foo</hardware>
+  // </gfxBlacklistEntry>
+  _handleGfxBlacklistNode: function (blocklistElement, result) {
+    const blockEntry = {};
+
+    // The blockID attribute is always present in the actual data produced on server
+    // (see https://github.com/mozilla/addons-server/blob/2016.05.05/src/olympia/blocklist/templates/blocklist/blocklist.xml#L74)
+    // But it is sometimes missing in test fixtures.
+    if (blocklistElement.hasAttribute("blockID")) {
+      blockEntry.blockID = blocklistElement.getAttribute("blockID");
+    }
+
+    // Trim helper (spaces, tabs, no-break spaces..)
+    const trim = (s) => (s || '').replace(/(^[\s\uFEFF\xA0]+)|([\s\uFEFF\xA0]+$)/g, "");
+
+    for (let i = 0; i < blocklistElement.childNodes.length; ++i) {
+      var matchElement = blocklistElement.childNodes.item(i);
+      if (!(matchElement instanceof Ci.nsIDOMElement))
+        continue;
+
+      let value;
+      if (matchElement.localName == "devices") {
+        value = [];
+        for (let j = 0; j < matchElement.childNodes.length; j++) {
+          const childElement = matchElement.childNodes.item(j);
+          const childValue = trim(childElement.textContent);
+          // Make sure no empty value is added.
+          if (childValue) {
+            if (/,/.test(childValue)) {
+              // Devices can't contain comma.
+              // (c.f serialization in _notifyObserversBlocklistGFX)
+              const e = new Error(`Unsupported device name ${childValue}`);
+              Components.utils.reportError(e);
+            }
+            else {
+              value.push(childValue);
+            }
+          }
+        }
+      } else if (matchElement.localName == "versionRange") {
+        value = {minVersion: trim(matchElement.getAttribute("minVersion")) || "0",
+                 maxVersion: trim(matchElement.getAttribute("maxVersion")) || "*"};
+      } else {
+        value = trim(matchElement.textContent);
+      }
+      if (value) {
+        blockEntry[matchElement.localName] = value;
+      }
+    }
+    result.push(blockEntry);
+  },
+
+  /* See nsIBlocklistService */
+  getPluginBlocklistState: function(plugin, appVersion, toolkitVersion) {
+    if (AppConstants.platform == "android" ||
+        AppConstants.MOZ_B2G) {
+      return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
+    }
+    if (!this._isBlocklistLoaded())
+      this._loadBlocklist();
+    return this._getPluginBlocklistState(plugin, this._pluginEntries,
+                                         appVersion, toolkitVersion);
+  },
+
+  /**
+   * Private helper to get the blocklist entry for a plugin given a set of
+   * blocklist entries and versions.
+   *
+   * @param   plugin
+   *          The nsIPluginTag to get the blocklist state for.
+   * @param   pluginEntries
+   *          The plugin blocklist entries to compare against.
+   * @param   appVersion
+   *          The application version to compare to, will use the current
+   *          version if null.
+   * @param   toolkitVersion
+   *          The toolkit version to compare to, will use the current version if
+   *          null.
+   * @returns {entry: blocklistEntry, version: blocklistEntryVersion},
+   *          or null if there is no matching entry.
+   */
+  _getPluginBlocklistEntry: function(plugin, pluginEntries, appVersion, toolkitVersion) {
+    if (!gBlocklistEnabled)
+      return null;
+
+    // Not all applications implement nsIXULAppInfo (e.g. xpcshell doesn't).
+    if (!appVersion && !gApp.version)
+      return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
+
+    if (!appVersion)
+      appVersion = gApp.version;
+    if (!toolkitVersion)
+      toolkitVersion = gApp.platformVersion;
+
+    for (var blockEntry of pluginEntries) {
+      var matchFailed = false;
+      for (var name in blockEntry.matches) {
+        if (!(name in plugin) ||
+            typeof(plugin[name]) != "string" ||
+            !blockEntry.matches[name].test(plugin[name])) {
+          matchFailed = true;
+          break;
+        }
+      }
+
+      if (matchFailed)
+        continue;
+
+      for (let blockEntryVersion of blockEntry.versions) {
+        if (blockEntryVersion.includesItem(plugin.version, appVersion,
+                                           toolkitVersion)) {
+          return {entry: blockEntry, version: blockEntryVersion};
+        }
+      }
+    }
+
+    return null;
+  },
+
+  /**
+   * Private version of getPluginBlocklistState that allows the caller to pass in
+   * the plugin blocklist entries.
+   *
+   * @param   plugin
+   *          The nsIPluginTag to get the blocklist state for.
+   * @param   pluginEntries
+   *          The plugin blocklist entries to compare against.
+   * @param   appVersion
+   *          The application version to compare to, will use the current
+   *          version if null.
+   * @param   toolkitVersion
+   *          The toolkit version to compare to, will use the current version if
+   *          null.
+   * @returns The blocklist state for the item, one of the STATE constants as
+   *          defined in nsIBlocklistService.
+   */
+  _getPluginBlocklistState: function(plugin, pluginEntries, appVersion, toolkitVersion) {
+
+    let r = this._getPluginBlocklistEntry(plugin, pluginEntries,
+                                          appVersion, toolkitVersion);
+    if (!r) {
+      return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
+    }
+
+    let {entry: blockEntry, version: blockEntryVersion} = r;
+
+    if (blockEntryVersion.severity >= gBlocklistLevel)
+      return Ci.nsIBlocklistService.STATE_BLOCKED;
+    if (blockEntryVersion.severity == SEVERITY_OUTDATED) {
+      let vulnerabilityStatus = blockEntryVersion.vulnerabilityStatus;
+      if (vulnerabilityStatus == VULNERABILITYSTATUS_UPDATE_AVAILABLE)
+        return Ci.nsIBlocklistService.STATE_VULNERABLE_UPDATE_AVAILABLE;
+      if (vulnerabilityStatus == VULNERABILITYSTATUS_NO_UPDATE)
+        return Ci.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE;
+      return Ci.nsIBlocklistService.STATE_OUTDATED;
+    }
+    return Ci.nsIBlocklistService.STATE_SOFTBLOCKED;
+  },
+
+  /* See nsIBlocklistService */
+  getPluginBlocklistURL: function(plugin) {
+    if (!this._isBlocklistLoaded())
+      this._loadBlocklist();
+
+    let r = this._getPluginBlocklistEntry(plugin, this._pluginEntries);
+    if (!r) {
+      return null;
+    }
+    let {entry: blockEntry, version: blockEntryVersion} = r;
+    if (!blockEntry.blockID) {
+      return null;
+    }
+
+    return this._createBlocklistURL(blockEntry.blockID);
+  },
+
+  /* See nsIBlocklistService */
+  getPluginInfoURL: function(plugin) {
+    if (!this._isBlocklistLoaded())
+      this._loadBlocklist();
+
+    let r = this._getPluginBlocklistEntry(plugin, this._pluginEntries);
+    if (!r) {
+      return null;
+    }
+    let {entry: blockEntry, version: blockEntryVersion} = r;
+    if (!blockEntry.blockID) {
+      return null;
+    }
+
+    return blockEntry.infoURL;
+  },
+
+  _notifyObserversBlocklistGFX: function () {
+    // Notify `GfxInfoBase`, by passing a string serialization.
+    // This way we avoid spreading XML structure logics there.
+    const payload = this._gfxEntries.map((r) => {
+      return Object.keys(r).sort().filter((k) => !/id|last_modified/.test(k)).map((key) => {
+        let value = r[key];
+        if (Array.isArray(value)) {
+          value = value.join(",");
+        } else if (value.hasOwnProperty("minVersion")) {
+          // When XML is parsed, both minVersion and maxVersion are set.
+          value = `${value.minVersion},${value.maxVersion}`;
+        }
+        return `${key}:${value}`;
+      }).join("\t");
+    }).join("\n");
+    Services.obs.notifyObservers(null, "blocklist-data-gfxItems", payload);
+  },
+
+  _notifyObserversBlocklistUpdated: function() {
+    Services.obs.notifyObservers(this, "blocklist-updated", "");
+    Services.ppmm.broadcastAsyncMessage("Blocklist:blocklistInvalidated", {});
+  },
+
+  _blocklistUpdated: function(oldAddonEntries, oldPluginEntries) {
+    if (AppConstants.MOZ_B2G) {
+      return;
+    }
+
+    var addonList = [];
+
+    // A helper function that reverts the prefs passed to default values.
+    function resetPrefs(prefs) {
+      for (let pref of prefs)
+        gPref.clearUserPref(pref);
+    }
+    const types = ["extension", "theme", "locale", "dictionary", "service"];
+    AddonManager.getAddonsByTypes(types, addons => {
+      for (let addon of addons) {
+        let oldState = Ci.nsIBlocklistService.STATE_NOTBLOCKED;
+        if (oldAddonEntries)
+          oldState = this._getAddonBlocklistState(addon, oldAddonEntries);
+        let state = this.getAddonBlocklistState(addon);
+
+        LOG("Blocklist state for " + addon.id + " changed from " +
+            oldState + " to " + state);
+
+        // We don't want to re-warn about add-ons
+        if (state == oldState)
+          continue;
+
+        if (state === Ci.nsIBlocklistService.STATE_BLOCKED) {
+          // It's a hard block. We must reset certain preferences.
+          let prefs = this._getAddonPrefs(addon);
+          resetPrefs(prefs);
+         }
+
+        // Ensure that softDisabled is false if the add-on is not soft blocked
+        if (state != Ci.nsIBlocklistService.STATE_SOFTBLOCKED)
+          addon.softDisabled = false;
+
+        // Don't warn about add-ons becoming unblocked.
+        if (state == Ci.nsIBlocklistService.STATE_NOT_BLOCKED)
+          continue;
+
+        // If an add-on has dropped from hard to soft blocked just mark it as
+        // soft disabled and don't warn about it.
+        if (state == Ci.nsIBlocklistService.STATE_SOFTBLOCKED &&
+            oldState == Ci.nsIBlocklistService.STATE_BLOCKED) {
+          addon.softDisabled = true;
+          continue;
+        }
+
+        // If the add-on is already disabled for some reason then don't warn
+        // about it
+        if (!addon.isActive) {
+          // But mark it as softblocked if necessary. Note that we avoid setting
+          // softDisabled at the same time as userDisabled to make it clear
+          // which was the original cause of the add-on becoming disabled in a
+          // way that the user can change.
+          if (state == Ci.nsIBlocklistService.STATE_SOFTBLOCKED && !addon.userDisabled)
+            addon.softDisabled = true;
+          continue;
+        }
+
+        addonList.push({
+          name: addon.name,
+          version: addon.version,
+          icon: addon.iconURL,
+          disable: false,
+          blocked: state == Ci.nsIBlocklistService.STATE_BLOCKED,
+          item: addon,
+          url: this.getAddonBlocklistURL(addon),
+        });
+      }
+
+      AddonManagerPrivate.updateAddonAppDisabledStates();
+
+      var phs = Cc["@mozilla.org/plugin/host;1"].
+                getService(Ci.nsIPluginHost);
+      var plugins = phs.getPluginTags();
+
+      for (let plugin of plugins) {
+        let oldState = -1;
+        if (oldPluginEntries)
+          oldState = this._getPluginBlocklistState(plugin, oldPluginEntries);
+        let state = this.getPluginBlocklistState(plugin);
+        LOG("Blocklist state for " + plugin.name + " changed from " +
+            oldState + " to " + state);
+        // We don't want to re-warn about items
+        if (state == oldState)
+          continue;
+
+        if (oldState == Ci.nsIBlocklistService.STATE_BLOCKED) {
+          if (state == Ci.nsIBlocklistService.STATE_SOFTBLOCKED)
+            plugin.enabledState = Ci.nsIPluginTag.STATE_DISABLED;
+        }
+        else if (!plugin.disabled && state != Ci.nsIBlocklistService.STATE_NOT_BLOCKED) {
+          if (state != Ci.nsIBlocklistService.STATE_OUTDATED &&
+              state != Ci.nsIBlocklistService.STATE_VULNERABLE_UPDATE_AVAILABLE &&
+              state != Ci.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE) {
+            addonList.push({
+              name: plugin.name,
+              version: plugin.version,
+              icon: "chrome://mozapps/skin/plugins/pluginGeneric.png",
+              disable: false,
+              blocked: state == Ci.nsIBlocklistService.STATE_BLOCKED,
+              item: plugin,
+              url: this.getPluginBlocklistURL(plugin),
+            });
+          }
+        }
+      }
+
+      if (addonList.length == 0) {
+        this._notifyObserversBlocklistUpdated();
+        return;
+      }
+
+      if ("@mozilla.org/addons/blocklist-prompt;1" in Cc) {
+        try {
+          let blockedPrompter = Cc["@mozilla.org/addons/blocklist-prompt;1"]
+                                 .getService(Ci.nsIBlocklistPrompt);
+          blockedPrompter.prompt(addonList);
+        } catch (e) {
+          LOG(e);
+        }
+        this._notifyObserversBlocklistUpdated();
+        return;
+      }
+
+      var args = {
+        restart: false,
+        list: addonList
+      };
+      // This lets the dialog get the raw js object
+      args.wrappedJSObject = args;
+
+      /*
+        Some tests run without UI, so the async code listens to a message
+        that can be sent programatically
+      */
+      let applyBlocklistChanges = () => {
+        for (let addon of addonList) {
+          if (!addon.disable)
+            continue;
+
+          if (addon.item instanceof Ci.nsIPluginTag)
+            addon.item.enabledState = Ci.nsIPluginTag.STATE_DISABLED;
+          else {
+            // This add-on is softblocked.
+            addon.item.softDisabled = true;
+            // We must revert certain prefs.
+            let prefs = this._getAddonPrefs(addon.item);
+            resetPrefs(prefs);
+          }
+        }
+
+        if (args.restart)
+          restartApp();
+
+        this._notifyObserversBlocklistUpdated();
+        Services.obs.removeObserver(applyBlocklistChanges, "addon-blocklist-closed");
+      }
+
+      Services.obs.addObserver(applyBlocklistChanges, "addon-blocklist-closed", false);
+
+      if (getPref("getBoolPref", PREF_BLOCKLIST_SUPPRESSUI, false)) {
+        applyBlocklistChanges();
+        return;
+      }
+
+      function blocklistUnloadHandler(event) {
+        if (event.target.location == URI_BLOCKLIST_DIALOG) {
+          applyBlocklistChanges();
+          blocklistWindow.removeEventListener("unload", blocklistUnloadHandler);
+        }
+      }
+
+      let blocklistWindow = Services.ww.openWindow(null, URI_BLOCKLIST_DIALOG, "",
+                              "chrome,centerscreen,dialog,titlebar", args);
+      if (blocklistWindow)
+        blocklistWindow.addEventListener("unload", blocklistUnloadHandler, false);
+    });
+  },
+
+  classID: Components.ID("{66354bc9-7ed1-4692-ae1d-8da97d6b205e}"),
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
+                                         Ci.nsIBlocklistService,
+                                         Ci.nsITimerCallback]),
+};
+
+/**
+ * Helper for constructing a blocklist.
+ */
+function BlocklistItemData(versionRangeElement) {
+  var versionRange = this.getBlocklistVersionRange(versionRangeElement);
+  this.minVersion = versionRange.minVersion;
+  this.maxVersion = versionRange.maxVersion;
+  if (versionRangeElement && versionRangeElement.hasAttribute("severity"))
+    this.severity = versionRangeElement.getAttribute("severity");
+  else
+    this.severity = DEFAULT_SEVERITY;
+  if (versionRangeElement && versionRangeElement.hasAttribute("vulnerabilitystatus")) {
+    this.vulnerabilityStatus = versionRangeElement.getAttribute("vulnerabilitystatus");
+  } else {
+    this.vulnerabilityStatus = VULNERABILITYSTATUS_NONE;
+  }
+  this.targetApps = { };
+  var found = false;
+
+  if (versionRangeElement) {
+    for (var i = 0; i < versionRangeElement.childNodes.length; ++i) {
+      var targetAppElement = versionRangeElement.childNodes.item(i);
+      if (!(targetAppElement instanceof Ci.nsIDOMElement) ||
+          targetAppElement.localName != "targetApplication")
+        continue;
+      found = true;
+      // default to the current application if id is not provided.
+      var appID = targetAppElement.hasAttribute("id") ? targetAppElement.getAttribute("id") : gApp.ID;
+      this.targetApps[appID] = this.getBlocklistAppVersions(targetAppElement);
+    }
+  }
+  // Default to all versions of the current application when no targetApplication
+  // elements were found
+  if (!found)
+    this.targetApps[gApp.ID] = this.getBlocklistAppVersions(null);
+}
+
+BlocklistItemData.prototype = {
+  /**
+   * Tests if a version of an item is included in the version range and target
+   * application information represented by this BlocklistItemData using the
+   * provided application and toolkit versions.
+   * @param   version
+   *          The version of the item being tested.
+   * @param   appVersion
+   *          The application version to test with.
+   * @param   toolkitVersion
+   *          The toolkit version to test with.
+   * @returns True if the version range covers the item version and application
+   *          or toolkit version.
+   */
+  includesItem: function(version, appVersion, toolkitVersion) {
+    // Some platforms have no version for plugins, these don't match if there
+    // was a min/maxVersion provided
+    if (!version && (this.minVersion || this.maxVersion))
+      return false;
+
+    // Check if the item version matches
+    if (!this.matchesRange(version, this.minVersion, this.maxVersion))
+      return false;
+
+    // Check if the application version matches
+    if (this.matchesTargetRange(gApp.ID, appVersion))
+      return true;
+
+    // Check if the toolkit version matches
+    return this.matchesTargetRange(TOOLKIT_ID, toolkitVersion);
+  },
+
+  /**
+   * Checks if a version is higher than or equal to the minVersion (if provided)
+   * and lower than or equal to the maxVersion (if provided).
+   * @param   version
+   *          The version to test.
+   * @param   minVersion
+   *          The minimum version. If null it is assumed that version is always
+   *          larger.
+   * @param   maxVersion
+   *          The maximum version. If null it is assumed that version is always
+   *          smaller.
+   */
+  matchesRange: function(version, minVersion, maxVersion) {
+    if (minVersion && gVersionChecker.compare(version, minVersion) < 0)
+      return false;
+    if (maxVersion && gVersionChecker.compare(version, maxVersion) > 0)
+      return false;
+    return true;
+  },
+
+  /**
+   * Tests if there is a matching range for the given target application id and
+   * version.
+   * @param   appID
+   *          The application ID to test for, may be for an application or toolkit
+   * @param   appVersion
+   *          The version of the application to test for.
+   * @returns True if this version range covers the application version given.
+   */
+  matchesTargetRange: function(appID, appVersion) {
+    var blTargetApp = this.targetApps[appID];
+    if (!blTargetApp)
+      return false;
+
+    for (let app of blTargetApp) {
+      if (this.matchesRange(appVersion, app.minVersion, app.maxVersion))
+        return true;
+    }
+
+    return false;
+  },
+
+  /**
+   * Retrieves a version range (e.g. minVersion and maxVersion) for a
+   * blocklist item's targetApplication element.
+   * @param   targetAppElement
+   *          A targetApplication blocklist element.
+   * @returns An array of JS objects with the following properties:
+   *          "minVersion"  The minimum version in a version range (default = null).
+   *          "maxVersion"  The maximum version in a version range (default = null).
+   */
+  getBlocklistAppVersions: function(targetAppElement) {
+    var appVersions = [ ];
+
+    if (targetAppElement) {
+      for (var i = 0; i < targetAppElement.childNodes.length; ++i) {
+        var versionRangeElement = targetAppElement.childNodes.item(i);
+        if (!(versionRangeElement instanceof Ci.nsIDOMElement) ||
+            versionRangeElement.localName != "versionRange")
+          continue;
+        appVersions.push(this.getBlocklistVersionRange(versionRangeElement));
+      }
+    }
+    // return minVersion = null and maxVersion = null if no specific versionRange
+    // elements were found
+    if (appVersions.length == 0)
+      appVersions.push(this.getBlocklistVersionRange(null));
+    return appVersions;
+  },
+
+  /**
+   * Retrieves a version range (e.g. minVersion and maxVersion) for a blocklist
+   * versionRange element.
+   * @param   versionRangeElement
+   *          The versionRange blocklist element.
+   * @returns A JS object with the following properties:
+   *          "minVersion"  The minimum version in a version range (default = null).
+   *          "maxVersion"  The maximum version in a version range (default = null).
+   */
+  getBlocklistVersionRange: function(versionRangeElement) {
+    var minVersion = null;
+    var maxVersion = null;
+    if (!versionRangeElement)
+      return { minVersion: minVersion, maxVersion: maxVersion };
+
+    if (versionRangeElement.hasAttribute("minVersion"))
+      minVersion = versionRangeElement.getAttribute("minVersion");
+    if (versionRangeElement.hasAttribute("maxVersion"))
+      maxVersion = versionRangeElement.getAttribute("maxVersion");
+
+    return { minVersion: minVersion, maxVersion: maxVersion };
+  }
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([Blocklist]);
diff --git a/toolkit/mozapps/webextensions/nsBlocklistServiceContent.js b/toolkit/mozapps/webextensions/nsBlocklistServiceContent.js
new file mode 100644
index 000000000..1752924b5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/nsBlocklistServiceContent.js
@@ -0,0 +1,113 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const kMissingAPIMessage = "Unsupported blocklist call in the child process."
+
+/*
+ * A lightweight blocklist proxy for the content process that traps plugin
+ * related blocklist checks and forwards them to the parent. This interface is
+ * primarily designed to insure overlays work.. it does not control plugin
+ * or addon loading.
+ */
+
+function Blocklist() {
+  this.init();
+}
+
+Blocklist.prototype = {
+  classID: Components.ID("{e0a106ed-6ad4-47a4-b6af-2f1c8aa4712d}"),
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
+                                         Ci.nsIBlocklistService]),
+
+  init: function() {
+    Services.cpmm.addMessageListener("Blocklist:blocklistInvalidated", this);
+    Services.obs.addObserver(this, "xpcom-shutdown", false);
+  },
+
+  uninit: function() {
+    Services.cpmm.removeMessageListener("Blocklist:blocklistInvalidated", this);
+    Services.obs.removeObserver(this, "xpcom-shutdown", false);
+  },
+
+  observe: function(aSubject, aTopic, aData) {
+    switch (aTopic) {
+    case "xpcom-shutdown":
+      this.uninit();
+      break;
+    }
+  },
+
+  // Message manager message handlers
+  receiveMessage: function(aMsg) {
+    switch (aMsg.name) {
+      case "Blocklist:blocklistInvalidated":
+        Services.obs.notifyObservers(null, "blocklist-updated", null);
+        Services.cpmm.sendAsyncMessage("Blocklist:content-blocklist-updated");
+        break;
+      default:
+        throw new Error("Unknown blocklist message received from content: " + aMsg.name);
+    }
+  },
+
+  /*
+   * A helper that queries key data from a plugin or addon object
+   * and generates a simple data wrapper suitable for ipc. We hand
+   * these directly to the nsBlockListService in the parent which
+   * doesn't query for much.. allowing us to get away with this.
+   */
+  flattenObject: function(aTag) {
+    // Based on debugging the nsBlocklistService, these are the props the
+    // parent side will check on our objects.
+    let props = ["name", "description", "filename", "version"];
+    let dataWrapper = {};
+    for (let prop of props) {
+      dataWrapper[prop] = aTag[prop];
+    }
+    return dataWrapper;
+  },
+
+  // We support the addon methods here for completeness, but content currently
+  // only calls getPluginBlocklistState.
+
+  isAddonBlocklisted: function(aAddon, aAppVersion, aToolkitVersion) {
+    return true;
+  },
+
+  getAddonBlocklistState: function(aAddon, aAppVersion, aToolkitVersion) {
+    return Components.interfaces.nsIBlocklistService.STATE_BLOCKED;
+  },
+
+  // There are a few callers in layout that rely on this.
+  getPluginBlocklistState: function(aPluginTag, aAppVersion, aToolkitVersion) {
+    return Services.cpmm.sendSyncMessage("Blocklist:getPluginBlocklistState", {
+      addonData: this.flattenObject(aPluginTag),
+      appVersion: aAppVersion,
+      toolkitVersion: aToolkitVersion
+    })[0];
+  },
+
+  getAddonBlocklistURL: function(aAddon, aAppVersion, aToolkitVersion) {
+    throw new Error(kMissingAPIMessage);
+  },
+
+  getPluginBlocklistURL: function(aPluginTag) {
+    throw new Error(kMissingAPIMessage);
+  },
+
+  getPluginInfoURL: function(aPluginTag) {
+    throw new Error(kMissingAPIMessage);
+  }
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([Blocklist]);
diff --git a/toolkit/mozapps/webextensions/test/AddonManagerTesting.jsm b/toolkit/mozapps/webextensions/test/AddonManagerTesting.jsm
new file mode 100644
index 000000000..eb9a92195
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/AddonManagerTesting.jsm
@@ -0,0 +1,115 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// This file is a test-only JSM containing utility methods for
+// interacting with the add-ons manager.
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = [
+  "AddonManagerTesting",
+];
+
+const {utils: Cu} = Components;
+
+Cu.import("resource://gre/modules/Promise.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "AddonManager",
+                                  "resource://gre/modules/AddonManager.jsm");
+
+this.AddonManagerTesting = {
+  /**
+   * Get the add-on that is specified by its ID.
+   *
+   * @return {Promise<Object>} A promise that resolves returning the found addon or null
+   *         if it is not found.
+   */
+  getAddonById: function (id) {
+    return new Promise(resolve => AddonManager.getAddonByID(id, addon => resolve(addon)));
+  },
+
+  /**
+   * Uninstall an add-on that is specified by its ID.
+   *
+   * The returned promise resolves on successful uninstall and rejects
+   * if the add-on is not unknown.
+   *
+   * @return Promise<restartRequired>
+   */
+  uninstallAddonByID: function (id) {
+    let deferred = Promise.defer();
+
+    AddonManager.getAddonByID(id, (addon) => {
+      if (!addon) {
+        deferred.reject(new Error("Add-on is not known: " + id));
+        return;
+      }
+
+      let listener = {
+        onUninstalling: function (addon, needsRestart) {
+          if (addon.id != id) {
+            return;
+          }
+
+          if (needsRestart) {
+            AddonManager.removeAddonListener(listener);
+            deferred.resolve(true);
+          }
+        },
+
+        onUninstalled: function (addon) {
+          if (addon.id != id) {
+            return;
+          }
+
+          AddonManager.removeAddonListener(listener);
+          deferred.resolve(false);
+        },
+
+        onOperationCancelled: function (addon) {
+          if (addon.id != id) {
+            return;
+          }
+
+          AddonManager.removeAddonListener(listener);
+          deferred.reject(new Error("Uninstall cancelled."));
+        },
+      };
+
+      AddonManager.addAddonListener(listener);
+      addon.uninstall();
+    });
+
+    return deferred.promise;
+  },
+
+  /**
+   * Install an XPI add-on from a URL.
+   *
+   * @return Promise<addon>
+   */
+  installXPIFromURL: function (url, hash, name, iconURL, version) {
+    let deferred = Promise.defer();
+
+    AddonManager.getInstallForURL(url, (install) => {
+      let fail = () => { deferred.reject(new Error("Add-on install failed.")) };
+
+      let listener = {
+        onDownloadCancelled: fail,
+        onDownloadFailed: fail,
+        onInstallCancelled: fail,
+        onInstallFailed: fail,
+        onInstallEnded: function (install, addon) {
+          deferred.resolve(addon);
+        },
+      };
+
+      install.addListener(listener);
+      install.install();
+    }, "application/x-xpinstall", hash, name, iconURL, version);
+
+    return deferred.promise;
+  },
+};
diff --git a/toolkit/mozapps/webextensions/test/Makefile.in b/toolkit/mozapps/webextensions/test/Makefile.in
new file mode 100644
index 000000000..6c667ecab
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/Makefile.in
@@ -0,0 +1,20 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+ADDONSRC = $(srcdir)/addons
+TESTROOT = $(CURDIR)/$(DEPTH)/_tests/xpcshell/$(relativesrcdir)
+TESTXPI = $(TESTROOT)/xpcshell/addons
+
+include $(topsrcdir)/config/rules.mk
+
+libs::
+	rm -rf $(TESTXPI)
+	$(NSINSTALL) -D $(TESTXPI)
+	if [ -d $(ADDONSRC) ]; then \
+		$(EXIT_ON_ERROR) \
+		for dir in $(ADDONSRC)/*; do \
+			base=`basename $$dir` ; \
+			(cd $$dir && zip -qr $(TESTXPI)/$$base.xpi *) \
+		done \
+	fi
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_hard1_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_hard1_1/install.rdf
new file mode 100644
index 000000000..7b1b02a17
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_hard1_1/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>hardblock@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:name>Hardblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_hard1_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_hard1_2/install.rdf
new file mode 100644
index 000000000..ae364637e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_hard1_2/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>hardblock@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:name>Hardblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_hard1_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_hard1_3/install.rdf
new file mode 100644
index 000000000..568c41a43
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_hard1_3/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>hardblock@tests.mozilla.org</em:id>
+    <em:version>3.0</em:version>
+    <em:name>Hardblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_regexp1_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_regexp1_1/install.rdf
new file mode 100644
index 000000000..1281ab53f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_regexp1_1/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>regexpblock@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:name>RegExp-blocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_regexp1_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_regexp1_2/install.rdf
new file mode 100644
index 000000000..8b6dd09f5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_regexp1_2/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>regexpblock@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:name>RegExp-blocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_regexp1_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_regexp1_3/install.rdf
new file mode 100644
index 000000000..fade395f9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_regexp1_3/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>regexpblock@tests.mozilla.org</em:id>
+    <em:version>3.0</em:version>
+    <em:name>RegExp-blocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft1_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft1_1/install.rdf
new file mode 100644
index 000000000..4a18f64e0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft1_1/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft1_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft1_2/install.rdf
new file mode 100644
index 000000000..8a2519222
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft1_2/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft1_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft1_3/install.rdf
new file mode 100644
index 000000000..2c55e5ff7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft1_3/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock1@tests.mozilla.org</em:id>
+    <em:version>3.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft2_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft2_1/install.rdf
new file mode 100644
index 000000000..eebac4b21
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft2_1/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock2@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft2_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft2_2/install.rdf
new file mode 100644
index 000000000..f37741d04
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft2_2/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock2@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft2_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft2_3/install.rdf
new file mode 100644
index 000000000..e15f99264
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft2_3/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock2@tests.mozilla.org</em:id>
+    <em:version>3.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft3_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft3_1/install.rdf
new file mode 100644
index 000000000..f4b70a24b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft3_1/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock3@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft3_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft3_2/install.rdf
new file mode 100644
index 000000000..987204fa6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft3_2/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock3@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft3_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft3_3/install.rdf
new file mode 100644
index 000000000..19ab4b9fe
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft3_3/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock3@tests.mozilla.org</em:id>
+    <em:version>3.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft4_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft4_1/install.rdf
new file mode 100644
index 000000000..a3cd06f5f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft4_1/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock4@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft4_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft4_2/install.rdf
new file mode 100644
index 000000000..eeff9fb79
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft4_2/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock4@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft4_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft4_3/install.rdf
new file mode 100644
index 000000000..1d2650603
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft4_3/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock4@tests.mozilla.org</em:id>
+    <em:version>3.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft5_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft5_1/install.rdf
new file mode 100644
index 000000000..85d7108d6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft5_1/install.rdf
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock5@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:internalName>test/1.0</em:internalName>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft5_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft5_2/install.rdf
new file mode 100644
index 000000000..394fd909e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft5_2/install.rdf
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock5@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:internalName>test/1.0</em:internalName>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/blocklist_soft5_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/blocklist_soft5_3/install.rdf
new file mode 100644
index 000000000..2a1fec25a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/blocklist_soft5_3/install.rdf
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>softblock5@tests.mozilla.org</em:id>
+    <em:version>3.0</em:version>
+    <em:name>Softblocked add-on</em:name>
+    <em:internalName>test/1.0</em:internalName>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/bootstrap_globals/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/bootstrap_globals/bootstrap.js
new file mode 100644
index 000000000..a5d5beb34
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/bootstrap_globals/bootstrap.js
@@ -0,0 +1,29 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+var seenGlobals = new Set();
+var scope = this;
+function checkGlobal(name, type) {
+  if (scope[name] && typeof(scope[name]) == type)
+    seenGlobals.add(name);
+}
+
+var wrapped = {};
+Services.obs.notifyObservers({ wrappedJSObject: wrapped }, "bootstrap-request-globals", null);
+for (let [name, type] of wrapped.expectedGlobals) {
+  checkGlobal(name, type);
+}
+
+function install(data, reason) {
+}
+
+function startup(data, reason) {
+  Services.obs.notifyObservers({
+    wrappedJSObject: seenGlobals
+  }, "bootstrap-seen-globals", null);
+}
+
+function shutdown(data, reason) {
+}
+
+function uninstall(data, reason) {
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/bootstrap_globals/install.rdf b/toolkit/mozapps/webextensions/test/addons/bootstrap_globals/install.rdf
new file mode 100644
index 000000000..f11a626fd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/bootstrap_globals/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bootstrap_globals@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap Globals</em:name>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/min1max1/install.rdf b/toolkit/mozapps/webextensions/test/addons/min1max1/install.rdf
new file mode 100644
index 000000000..3a0ace227
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/min1max1/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>min1max1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Test minVersion 1 maxVersion 1</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/min1max2/install.rdf b/toolkit/mozapps/webextensions/test/addons/min1max2/install.rdf
new file mode 100644
index 000000000..0184f1963
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/min1max2/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>min1max2@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Test minVersion 1 maxVersion 2</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/min1max3/install.rdf b/toolkit/mozapps/webextensions/test/addons/min1max3/install.rdf
new file mode 100644
index 000000000..dbb1b7318
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/min1max3/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>min1max3@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Test minVersion 1 maxVersion 3</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/min1max3b/install.rdf b/toolkit/mozapps/webextensions/test/addons/min1max3b/install.rdf
new file mode 100644
index 000000000..f50c65c6a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/min1max3b/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>min1max3b@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Another Test minVersion 1 maxVersion 3</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/override1x2-1x3/install.rdf b/toolkit/mozapps/webextensions/test/addons/override1x2-1x3/install.rdf
new file mode 100644
index 000000000..92cf3ec96
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/override1x2-1x3/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>override1x2-1x3@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:updateURL>http://localhost:4444/data/test_bug542391.rdf</em:updateURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Test override compat from 1..2 to 1..3</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_1/install.rdf
new file mode 100644
index 000000000..82cfd0472
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_1/install.rdf
@@ -0,0 +1,33 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test_AddonRepository_1@tests.mozilla.org</em:id>
+    <em:version>1.1</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>XPI Add-on 1</em:name>
+    <em:description>XPI Add-on 1 - Description</em:description>
+    <em:creator>XPI Add-on 1 - Creator</em:creator>
+    <em:developer>XPI Add-on 1 - First Developer</em:developer>
+    <em:developer>XPI Add-on 1 - Second Developer</em:developer>
+    <em:translator>XPI Add-on 1 - First Translator</em:translator>
+    <em:translator>XPI Add-on 1 - Second Translator</em:translator>
+    <em:contributor>XPI Add-on 1 - First Contributor</em:contributor>
+    <em:contributor>XPI Add-on 1 - Second Contributor</em:contributor>
+    <em:homepageURL>http://localhost/xpi/1/homepage.html</em:homepageURL>
+    <em:optionsURL>http://localhost/xpi/1/options.html</em:optionsURL>
+    <em:aboutURL>http://localhost/xpi/1/about.html</em:aboutURL>
+    <em:iconURL>http://localhost/xpi/1/icon.png</em:iconURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_2/install.rdf
new file mode 100644
index 000000000..80776e6c3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_2/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test_AddonRepository_2@tests.mozilla.org</em:id>
+    <em:type>4</em:type>
+    <em:internalName>test2/1.0</em:internalName>
+    <em:version>1.2</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>XPI Add-on 2</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_3/icon.png b/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_3/icon.png
new file mode 100644
index 000000000..41409edfe
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_3/icon.png
@@ -0,0 +1 @@
+Fake icon image
diff --git a/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_3/install.rdf
new file mode 100644
index 000000000..bade9c069
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_3/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test_AddonRepository_3@tests.mozilla.org</em:id>
+    <em:type>4</em:type>
+    <em:internalName>test3/1.0</em:internalName>
+    <em:version>1.3</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>XPI Add-on 3</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_3/preview.png b/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_3/preview.png
new file mode 100644
index 000000000..321ce47cf
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_AddonRepository_3/preview.png
@@ -0,0 +1 @@
+Fake preview image
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_1/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_1/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_1/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_1/install.rdf
new file mode 100644
index 000000000..f02a3869c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_1/install.rdf
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bootstrap1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:iconURL>chrome://foo/skin/icon.png</em:iconURL>
+    <em:aboutURL>chrome://foo/content/about.xul</em:aboutURL>
+    <em:optionsURL>chrome://foo/content/options.xul</em:optionsURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_1/version.jsm b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_1/version.jsm
new file mode 100644
index 000000000..7fe60e632
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_1/version.jsm
@@ -0,0 +1,3 @@
+this.EXPORTED_SYMBOLS = ["VERSION"];
+
+this.VERSION = 1;
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_2/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_2/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_2/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_2/install.rdf
new file mode 100644
index 000000000..480f03fd1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_2/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bootstrap1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_2/version.jsm b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_2/version.jsm
new file mode 100644
index 000000000..532741e12
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_2/version.jsm
@@ -0,0 +1,3 @@
+this.EXPORTED_SYMBOLS = ["VERSION"];
+
+this.VERSION = 2;
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_3/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_3/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_3/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_3/install.rdf
new file mode 100644
index 000000000..e9385cbb3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_3/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bootstrap1@tests.mozilla.org</em:id>
+    <em:version>3.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>undefined</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_3/version.jsm b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_3/version.jsm
new file mode 100644
index 000000000..1b813faaf
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_3/version.jsm
@@ -0,0 +1,3 @@
+this.EXPORTED_SYMBOLS = ["VERSION"];
+
+this.VERSION = 3;
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_4/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_4/install.rdf
new file mode 100644
index 000000000..2b88e0ad0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap1_4/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bootstrap1@tests.mozilla.org</em:id>
+    <em:version>4.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap2_1/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_bootstrap2_1/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap2_1/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap2_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bootstrap2_1/install.rdf
new file mode 100644
index 000000000..e0e8ca978
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap2_1/install.rdf
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bootstrap2@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap 2</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:iconURL>chrome://foo/skin/icon.png</em:iconURL>
+    <em:aboutURL>chrome://foo/content/about.xul</em:aboutURL>
+    <em:optionsURL>chrome://foo/content/options.xul</em:optionsURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap_const/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_bootstrap_const/bootstrap.js
new file mode 100644
index 000000000..0e45caec4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap_const/bootstrap.js
@@ -0,0 +1,5 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const install = function() {
+  Services.obs.notifyObservers(null, "addon-install", "");
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bootstrap_const/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bootstrap_const/install.rdf
new file mode 100644
index 000000000..898282991
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bootstrap_const/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bootstrap@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_2/install.rdf
new file mode 100644
index 000000000..791a6263f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_2/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-2@tests.mozilla.org</em:id>
+    <em:version>0.1</em:version>
+
+    <!-- XPCShell -->
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Toolkit -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1.9</em:minVersion>
+        <em:maxVersion>1.9</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716_2.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_a_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_a_1/install.rdf
new file mode 100644
index 000000000..36d15b8aa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_a_1/install.rdf
@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-a@tests.mozilla.org</em:id>
+    <em:version>0.1</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>5</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test A</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_a_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_a_2/install.rdf
new file mode 100644
index 000000000..3521a503c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_a_2/install.rdf
@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-a@tests.mozilla.org</em:id>
+    <em:version>0.2</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>5</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test A</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_b_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_b_1/install.rdf
new file mode 100644
index 000000000..d92a4ec41
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_b_1/install.rdf
@@ -0,0 +1,20 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-b@tests.mozilla.org</em:id>
+    <em:version>0.1</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1.9</em:minVersion>
+        <em:maxVersion>1.9</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test B</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_b_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_b_2/install.rdf
new file mode 100644
index 000000000..c3ad76b84
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_b_2/install.rdf
@@ -0,0 +1,20 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-b@tests.mozilla.org</em:id>
+    <em:version>0.2</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1.9</em:minVersion>
+        <em:maxVersion>1.9</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test B</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_c_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_c_1/install.rdf
new file mode 100644
index 000000000..a937b6e76
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_c_1/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-c@tests.mozilla.org</em:id>
+    <em:version>0.1</em:version>
+
+    <!-- XPCShell -->
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>5</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Toolkit -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1.9</em:minVersion>
+        <em:maxVersion>1.9</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test C</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_c_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_c_2/install.rdf
new file mode 100644
index 000000000..8afca3ff9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_c_2/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-c@tests.mozilla.org</em:id>
+    <em:version>0.2</em:version>
+
+    <!-- XPCShell -->
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>5</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Toolkit -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1.9</em:minVersion>
+        <em:maxVersion>1.9</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test C</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_d_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_d_1/install.rdf
new file mode 100644
index 000000000..4c0dcc2ef
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_d_1/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-d@tests.mozilla.org</em:id>
+    <em:version>0.1</em:version>
+
+    <!-- XPCShell -->
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>5</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Toolkit, invalid -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>30</em:minVersion>
+        <em:maxVersion>30</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test D</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_d_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_d_2/install.rdf
new file mode 100644
index 000000000..2b113809a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_d_2/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-d@tests.mozilla.org</em:id>
+    <em:version>0.2</em:version>
+
+    <!-- XPCShell -->
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>5</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Toolkit, invalid -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>30</em:minVersion>
+        <em:maxVersion>30</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test D</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_e_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_e_1/install.rdf
new file mode 100644
index 000000000..03eb7180e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_e_1/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-e@tests.mozilla.org</em:id>
+    <em:version>0.1</em:version>
+
+    <!-- Toolkit -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1.9</em:minVersion>
+        <em:maxVersion>1.9</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- XPCShell, invalid -->
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>30</em:minVersion>
+        <em:maxVersion>30</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test E</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_e_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_e_2/install.rdf
new file mode 100644
index 000000000..3ed7cd932
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_e_2/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-e@tests.mozilla.org</em:id>
+    <em:version>0.2</em:version>
+
+    <!-- Toolkit -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1.9</em:minVersion>
+        <em:maxVersion>1.9</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- XPCShell, invalid -->
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>30</em:minVersion>
+        <em:maxVersion>30</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test E</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_f_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_f_1/install.rdf
new file mode 100644
index 000000000..cacf824c1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_f_1/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-f@tests.mozilla.org</em:id>
+    <em:version>0.1</em:version>
+
+    <!-- Toolkit, invalid -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>30</em:minVersion>
+        <em:maxVersion>30</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- XPCShell, invalid -->
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>30</em:minVersion>
+        <em:maxVersion>30</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test F</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_f_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_f_2/install.rdf
new file mode 100644
index 000000000..09954ec36
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_f_2/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-f@tests.mozilla.org</em:id>
+    <em:version>0.2</em:version>
+
+    <!-- Toolkit, invalid -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>30</em:minVersion>
+        <em:maxVersion>30</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- XPCShell, invalid -->
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>30</em:minVersion>
+        <em:maxVersion>30</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test F</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_g_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_g_1/install.rdf
new file mode 100644
index 000000000..5e4a6f6a2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_g_1/install.rdf
@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-g@tests.mozilla.org</em:id>
+    <em:version>0.1</em:version>
+
+    <!-- Toolkit, invalid -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>30</em:minVersion>
+        <em:maxVersion>30</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test G</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug299716_g_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug299716_g_2/install.rdf
new file mode 100644
index 000000000..913233cec
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug299716_g_2/install.rdf
@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug299716-g@tests.mozilla.org</em:id>
+    <em:version>0.2</em:version>
+
+    <!-- Toolkit, invalid -->
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>30</em:minVersion>
+        <em:maxVersion>30</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:name>Bug 299716 test G</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug299716.rdf</em:updateURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug324121_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug324121_1/install.rdf
new file mode 100644
index 000000000..fd0dd50b7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug324121_1/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<!-- Compatible to install -->
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug324121_1@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 324121 Test 1</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug324121_1.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug324121_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug324121_2/install.rdf
new file mode 100644
index 000000000..607b68357
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug324121_2/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<!-- Compatible to install -->
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug324121_2@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 324121 Test 2</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug324121.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug324121_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug324121_3/install.rdf
new file mode 100644
index 000000000..3a4c7eafc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug324121_3/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<!-- Compatible to install -->
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug324121_3@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 324121 Test 5</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug324121.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug324121_4/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug324121_4/install.rdf
new file mode 100644
index 000000000..8557df116
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug324121_4/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<!-- Compatible to install -->
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug324121_4@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 324121 Test 4</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug324121_4.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug324121_5/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug324121_5/install.rdf
new file mode 100644
index 000000000..343a9d44c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug324121_5/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<!-- Compatible to install -->
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug324121_5@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 324121 Test 5</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug324121_5.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug324121_6/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug324121_6/install.rdf
new file mode 100644
index 000000000..5a724cc99
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug324121_6/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<!-- Compatible to install -->
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug324121_6@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 324121 Test 6</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug324121.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug324121_7/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug324121_7/install.rdf
new file mode 100644
index 000000000..70fe81168
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug324121_7/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<!-- Compatible to install -->
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug324121_7@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 324121 Test 7</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug324121.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug324121_8/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug324121_8/install.rdf
new file mode 100644
index 000000000..2aface3b4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug324121_8/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<!-- Compatible to install -->
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug324121_8@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 324121 Test 8</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug324121_8.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug324121_9/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug324121_9/install.rdf
new file mode 100644
index 000000000..7804e833c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug324121_9/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<!-- Compatible to install -->
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug324121_9@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 324121 Test 9</em:name>
+    <em:updateURL>http://localhost:4444/data/test_bug324121_9.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug335238_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug335238_1/install.rdf
new file mode 100644
index 000000000..c60b5711b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug335238_1/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug335238_1@tests.mozilla.org</em:id>
+    <em:version>1.3.4</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 335238</em:name>
+    <em:updateURL>http://localhost:4444/0?id=%ITEM_ID%&amp;version=%ITEM_VERSION%&amp;maxAppVersion=%ITEM_MAXAPPVERSION%&amp;status=%ITEM_STATUS%&amp;appId=%APP_ID%&amp;appVersion=%APP_VERSION%&amp;appOs=%APP_OS%&amp;appAbi=%APP_ABI%&amp;locale=%APP_LOCALE%&amp;reqVersion=%REQ_VERSION%</em:updateURL>
+    
+  </Description>      
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug335238_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug335238_2/install.rdf
new file mode 100644
index 000000000..23faf5a34
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug335238_2/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug335238_2@tests.mozilla.org</em:id>
+    <em:version>28at</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>7</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:requires>
+      <Description>
+        <em:id>unknown@tests.mozilla.org</em:id>
+        <em:minVersion>2</em:minVersion>
+        <em:maxVersion>72</em:maxVersion>
+      </Description>
+    </em:requires>
+    
+    <em:name>Bug 335238</em:name>
+    <em:updateURL>http://localhost:4444/1?id=%ITEM_ID%&amp;version=%ITEM_VERSION%&amp;maxAppVersion=%ITEM_MAXAPPVERSION%&amp;status=%ITEM_STATUS%&amp;appId=%APP_ID%&amp;appVersion=%APP_VERSION%&amp;appOs=%APP_OS%&amp;appAbi=%APP_ABI%&amp;locale=%APP_LOCALE%&amp;reqVersion=%REQ_VERSION%</em:updateURL>
+    
+  </Description>      
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug335238_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug335238_3/install.rdf
new file mode 100644
index 000000000..d44448208
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug335238_3/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug335238_3@tests.mozilla.org</em:id>
+    <em:version>58</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:requires>
+      <Description>
+        <em:id>unknown@tests.mozilla.org</em:id>
+        <em:minVersion>2</em:minVersion>
+        <em:maxVersion>72</em:maxVersion>
+      </Description>
+    </em:requires>
+    
+    <em:name>Bug 335238</em:name>
+    <em:updateURL>http://localhost:4444/2?id=%ITEM_ID%&amp;version=%ITEM_VERSION%&amp;maxAppVersion=%ITEM_MAXAPPVERSION%&amp;status=%ITEM_STATUS%&amp;appId=%APP_ID%&amp;appVersion=%APP_VERSION%&amp;appOs=%APP_OS%&amp;appAbi=%APP_ABI%&amp;locale=%APP_LOCALE%&amp;reqVersion=%REQ_VERSION%</em:updateURL>
+    
+  </Description>      
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug335238_4/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug335238_4/install.rdf
new file mode 100644
index 000000000..6ec052d36
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug335238_4/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug335238_4@tests.mozilla.org</em:id>
+    <em:version>4</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2+</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:requires>
+      <Description>
+        <em:id>unknown@tests.mozilla.org</em:id>
+        <em:minVersion>2</em:minVersion>
+        <em:maxVersion>72</em:maxVersion>
+      </Description>
+    </em:requires>
+    
+    <em:name>Bug 335238</em:name>
+    <em:updateURL>http://localhost:4444/3?id=%ITEM_ID%&amp;version=%ITEM_VERSION%&amp;maxAppVersion=%ITEM_MAXAPPVERSION%&amp;status=%ITEM_STATUS%&amp;appId=%APP_ID%&amp;appVersion=%APP_VERSION%&amp;appOs=%APP_OS%&amp;appAbi=%APP_ABI%&amp;locale=%APP_LOCALE%&amp;reqVersion=%REQ_VERSION%</em:updateURL>
+    
+  </Description>      
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug371495/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug371495/install.rdf
new file mode 100644
index 000000000..c60caf594
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug371495/install.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug371495@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <!-- Front End MetaData -->
+    <em:name>Test theme</em:name>
+    <em:type>4</em:type>
+    <em:internalName>test/1.0</em:internalName>
+    <em:optionsURL>chrome://foo/content/bar.xul</em:optionsURL>
+    <em:aboutURL>chrome://foo/content/bar.xul</em:aboutURL>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug394300_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug394300_1/install.rdf
new file mode 100644
index 000000000..2e5ace760
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug394300_1/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug394300_1@tests.mozilla.org</em:id>
+    <em:version>5</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 394300 Test 1</em:name>
+    <em:updateURL>http://localhost:4444/test_bug394300.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug394300_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug394300_2/install.rdf
new file mode 100644
index 000000000..ae54424d1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug394300_2/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug394300_2@tests.mozilla.org</em:id>
+    <em:version>5</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1.9</em:minVersion>
+        <em:maxVersion>1.9</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:name>Bug 394300 Test 2</em:name>
+    <em:updateURL>http://localhost:4444/test_bug394300.rdf</em:updateURL>
+    
+  </Description>      
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug397778/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug397778/install.rdf
new file mode 100644
index 000000000..cfcfd406f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug397778/install.rdf
@@ -0,0 +1,78 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug397778@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <em:localized>
+      <Description em:locale="fr">
+        <em:name>fr Name</em:name>
+        <em:description>fr Description</em:description>
+      </Description>
+    </em:localized>
+    
+    <em:localized>
+      <Description em:locale="de-DE">
+        <em:name>de-DE Name</em:name>
+      </Description>
+    </em:localized>
+    
+    <em:localized>
+      <Description em:locale="ES-es">
+        <em:name>es-ES Name</em:name>
+        <em:description>es-ES Description</em:description>
+      </Description>
+    </em:localized>
+    
+    <em:localized>
+      <Description em:locale="zh-TW">
+        <em:name>zh-TW Name</em:name>
+        <em:description>zh-TW Description</em:description>
+      </Description>
+    </em:localized>
+    
+    <em:localized>
+      <Description em:locale="zh-CN">
+        <em:name>zh-CN Name</em:name>
+        <em:description>zh-CN Description</em:description>
+      </Description>
+    </em:localized>
+    
+    <em:localized>
+      <Description em:locale="en-GB">
+        <em:name>en-GB Name</em:name>
+        <em:description>en-GB Description</em:description>
+      </Description>
+    </em:localized>
+    
+    <em:localized>
+      <Description em:locale="en">
+        <em:name>en Name</em:name>
+        <em:description>en Description</em:description>
+      </Description>
+    </em:localized>
+    
+    <em:localized>
+      <Description em:locale="en-CA">
+        <em:name>en-CA Name</em:name>
+        <em:description>en-CA Description</em:description>
+      </Description>
+    </em:localized>
+    
+    <!-- Front End MetaData -->
+    <em:name>Fallback Name</em:name>
+    <em:description>Fallback Description</em:description>
+
+  </Description>      
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug425657/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug425657/install.rdf
new file mode 100644
index 000000000..e4e1b339b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug425657/install.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>

+

+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"

+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">

+  <Description about="urn:mozilla:install-manifest">

+    <em:id>bug425657@tests.mozilla.org</em:id>

+    <em:version>1</em:version>

+    <em:targetApplication>

+      <Description>

+        <em:id>xpcshell@tests.mozilla.org</em:id>

+        <em:minVersion>1</em:minVersion>

+        <em:maxVersion>1</em:maxVersion>

+      </Description>

+    </em:targetApplication>

+    <em:name>Deutsches Wörterbuch</em:name>

+  </Description>

+</RDF>

diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug470377_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug470377_1/install.rdf
new file mode 100644
index 000000000..5397e8a87
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug470377_1/install.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug470377_1@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    <em:targetApplication>
+      <Description>
+        <em:id>unknown@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>Test for Bug 470377</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug470377_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug470377_2/install.rdf
new file mode 100644
index 000000000..b1dde7f7a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug470377_2/install.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug470377_2@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>Test for Bug 470377</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug470377_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug470377_3/install.rdf
new file mode 100644
index 000000000..ae483434a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug470377_3/install.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug470377_3@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>Test for Bug 470377</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug470377_4/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug470377_4/install.rdf
new file mode 100644
index 000000000..97abacc5e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug470377_4/install.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug470377_4@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>Test for Bug 470377</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug470377_5/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug470377_5/install.rdf
new file mode 100644
index 000000000..bff1104a7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug470377_5/install.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug470377_5@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>Test for Bug 470377</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug521905/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug521905/install.rdf
new file mode 100644
index 000000000..444bdc556
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug521905/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug521905@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Bug 521905</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug567173/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug567173/install.rdf
new file mode 100644
index 000000000..f97bd1302
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug567173/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug567173</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    
+    <!-- Front End MetaData -->
+    <em:name>Test Bug 567173</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug567184/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_bug567184/bootstrap.js
new file mode 100644
index 000000000..09c083532
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug567184/bootstrap.js
@@ -0,0 +1,7 @@
+function install(data, reason) { }
+
+function startup(data, reason) { }
+
+function shutdown(data, reason) { }
+
+function uninstall(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug567184/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug567184/install.rdf
new file mode 100644
index 000000000..1e13ceb87
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug567184/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug567184@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Bug 567184 Test</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>undefined</em:minVersion>
+        <em:maxVersion>undefined</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug587088_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug587088_1/install.rdf
new file mode 100644
index 000000000..83220ce06
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug587088_1/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Bug 587088 Test</em:name>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug587088_1/testfile b/toolkit/mozapps/webextensions/test/addons/test_bug587088_1/testfile
new file mode 100644
index 000000000..d2277257f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug587088_1/testfile
@@ -0,0 +1 @@
+Contents of add-on version 1
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug587088_1/testfile1 b/toolkit/mozapps/webextensions/test/addons/test_bug587088_1/testfile1
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug587088_1/testfile1
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug587088_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug587088_2/install.rdf
new file mode 100644
index 000000000..ba23ab802
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug587088_2/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Bug 587088 Test</em:name>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug587088_2/testfile b/toolkit/mozapps/webextensions/test/addons/test_bug587088_2/testfile
new file mode 100644
index 000000000..07afddfa7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug587088_2/testfile
@@ -0,0 +1 @@
+Contents of add-on version 2
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug587088_2/testfile2 b/toolkit/mozapps/webextensions/test/addons/test_bug587088_2/testfile2
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug587088_2/testfile2
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug594058/directory/file1 b/toolkit/mozapps/webextensions/test/addons/test_bug594058/directory/file1
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug594058/directory/file1
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug594058/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug594058/install.rdf
new file mode 100644
index 000000000..682831949
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug594058/install.rdf
@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug594058@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>bug 594058</em:name>
+    <em:description>stat-based invalidation</em:description>
+    <em:unpack>true</em:unpack>
+  </Description>      
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug595573/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug595573/install.rdf
new file mode 100644
index 000000000..36c03fd00
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug595573/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<!-- An extension that is compatible with the XPCShell test suite -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>{2f69dacd-03df-4150-a9f1-e8a7b2748829}</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug655254/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug655254/install.rdf
new file mode 100644
index 000000000..a3fa0d707
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug655254/install.rdf
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:name>Test 1</em:name>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug655254_2/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_bug655254_2/bootstrap.js
new file mode 100644
index 000000000..b79648e89
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug655254_2/bootstrap.js
@@ -0,0 +1,9 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+function startup(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.active_version", 1);
+}
+
+function shutdown(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.active_version", 0);
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug655254_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug655254_2/install.rdf
new file mode 100644
index 000000000..71827885f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug655254_2/install.rdf
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon2@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:name>Test 2</em:name>
+    <em:bootstrap>true</em:bootstrap>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>2</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug659772/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug659772/install.rdf
new file mode 100644
index 000000000..3b34c63d3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug659772/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<!-- An extension that is compatible with the XPCShell test suite -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon3@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>2</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug675371/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_bug675371/chrome.manifest
new file mode 100644
index 000000000..17d5c99ec
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug675371/chrome.manifest
@@ -0,0 +1 @@
+content bug675371 .

diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug675371/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug675371/install.rdf
new file mode 100644
index 000000000..ca2881e5a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug675371/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug675371@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Bug 675371 Test</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug675371/test.js b/toolkit/mozapps/webextensions/test/addons/test_bug675371/test.js
new file mode 100644
index 000000000..b942a8064
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug675371/test.js
@@ -0,0 +1 @@
+var active = true;
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug740612_1/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_bug740612_1/bootstrap.js
new file mode 100644
index 000000000..6703e7f7d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug740612_1/bootstrap.js
@@ -0,0 +1 @@
+const APP_STARTUP = 1;
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug740612_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug740612_1/install.rdf
new file mode 100644
index 000000000..b2316273f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug740612_1/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug740612_1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug740612_2/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_bug740612_2/bootstrap.js
new file mode 100644
index 000000000..2ad481453
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug740612_2/bootstrap.js
@@ -0,0 +1,23 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const VERSION = "1.0";
+
+function install(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.installed_version", VERSION);
+  Services.prefs.setIntPref("bootstraptest.install_reason", reason);
+}
+
+function startup(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.active_version", VERSION);
+  Services.prefs.setIntPref("bootstraptest.startup_reason", reason);
+}
+
+function shutdown(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.active_version", 0);
+  Services.prefs.setIntPref("bootstraptest.shutdown_reason", reason);
+}
+
+function uninstall(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.installed_version", 0);
+  Services.prefs.setIntPref("bootstraptest.uninstall_reason", reason);
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug740612_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug740612_2/install.rdf
new file mode 100644
index 000000000..ff4d613ef
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug740612_2/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug740612_2@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap 2</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_bug757663/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_bug757663/install.rdf
new file mode 100644
index 000000000..be8d85b1b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_bug757663/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug757663@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_cacheflush1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_cacheflush1/install.rdf
new file mode 100644
index 000000000..5e64b65c1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_cacheflush1/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>File Pointer Test</em:name>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_cacheflush2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_cacheflush2/install.rdf
new file mode 100644
index 000000000..7728002ea
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_cacheflush2/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon2@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>File Pointer Test</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_1/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_1/chrome.manifest
new file mode 100644
index 000000000..4d63b6b06
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_1/chrome.manifest
@@ -0,0 +1,6 @@
+content test-addon-1 chrome/content
+# comment!  
+  locale test-addon-1 en-US locale/en-US
+      # commentaire!  
+  locale test-addon-1    fr-FR locale/fr-FR  
+overlay	chrome://browser/content/browser.xul    chrome://test-addon-1/content/overlay.xul
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_1/install.rdf
new file mode 100644
index 000000000..486be8670
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_1/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_2/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_2/chrome.manifest
new file mode 100644
index 000000000..3b0195077
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_2/chrome.manifest
@@ -0,0 +1,7 @@
+content test-addon-1 chrome/content
+  
+  locale test-addon-1 en-US locale/en-US
+  locale test-addon-1    fr-FR locale/fr-FR  
+overlay	chrome://browser/content/browser.xul    chrome://test-addon-1/content/overlay.xul
+binary-component components/something.so
+manifest thisdoesntexist.manifest
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_2/install.rdf
new file mode 100644
index 000000000..9a9ee4823
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_2/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon2@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 2</em:name>
+    <em:description>Test Description</em:description>
+    <em:unpack>true</em:unpack>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_3/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_3/chrome.manifest
new file mode 100644
index 000000000..73190ed8f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_3/chrome.manifest
@@ -0,0 +1,9 @@
+content test-addon-1 chrome/content
+  
+  locale test-addon-1 en-US locale/en-US
+  locale test-addon-1    fr-FR locale/fr-FR  
+overlay	chrome://browser/content/browser.xul    chrome://test-addon-1/content/overlay.xul
+   
+     binary-component   components/something.so  
+
+ manifest  jar:inner.jar!/nested.manifest
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_3/inner.jar b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_3/inner.jar
new file mode 100644
index 000000000..b4a40052f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_3/inner.jar
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_3/install.rdf
new file mode 100644
index 000000000..3a4a709e0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_3/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon3@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 3</em:name>
+    <em:description>Test Description</em:description>
+    <em:unpack>true</em:unpack>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/chrome.manifest
new file mode 100644
index 000000000..60d4f01f0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/chrome.manifest
@@ -0,0 +1,6 @@
+content test-addon-1 chrome/content
+  
+  locale test-addon-1 en-US locale/en-US
+  locale test-addon-1    fr-FR locale/fr-FR  
+overlay	chrome://browser/content/browser.xul    chrome://test-addon-1/content/overlay.xul
+   manifest     components/components.manifest  
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/components/components.manifest b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/components/components.manifest
new file mode 100644
index 000000000..1e0aea440
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/components/components.manifest
@@ -0,0 +1,2 @@
+binary-component mycomponent.dll
+manifest other/something.manifest
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/components/other/something.manifest b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/components/other/something.manifest
new file mode 100644
index 000000000..73d58dd66
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/components/other/something.manifest
@@ -0,0 +1 @@
+binary-component thermalnuclearwar.dll

diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/install.rdf
new file mode 100644
index 000000000..463e3f27e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_4/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon4@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 4</em:name>
+    <em:description>Test Description</em:description>
+    <em:unpack>true</em:unpack>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_5/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_5/chrome.manifest
new file mode 100644
index 000000000..b0aa32adc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_5/chrome.manifest
@@ -0,0 +1,7 @@
+content test-addon-1 chrome/content
+  
+  locale test-addon-1 en-US locale/en-US
+  locale test-addon-1    fr-FR locale/fr-FR  
+overlay	chrome://browser/content/browser.xul    chrome://test-addon-1/content/overlay.xul
+   
+     binary-component   components/something.so  
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_5/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_5/install.rdf
new file mode 100644
index 000000000..7836bced8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_5/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon5@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 5</em:name>
+    <em:description>Test Description</em:description>
+    <em:unpack>false</em:unpack>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_6/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_6/chrome.manifest
new file mode 100644
index 000000000..4ebb75c30
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_6/chrome.manifest
@@ -0,0 +1 @@
+resource test-addon-1 .
diff --git a/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_6/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_6/install.rdf
new file mode 100644
index 000000000..5d94de0ea
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_chromemanifest_6/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon6@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 6</em:name>
+    <em:description>Test Description</em:description>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_data_directory/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_data_directory/install.rdf
new file mode 100644
index 000000000..aebfe3b68
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_data_directory/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>datadirectory1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Data Directory 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_db_sanity_1_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_db_sanity_1_1/install.rdf
new file mode 100644
index 000000000..e1f2b5173
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_db_sanity_1_1/install.rdf
@@ -0,0 +1,58 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test_db_sanity_1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:name>Test 1</em:name>
+    <em:description>Test Description</em:description>
+    <em:creator>Keyboard Cat</em:creator>
+    <em:homepageURL>http://mozilla.org/</em:homepageURL>
+
+    <em:contributor>Keyboard Cat 2</em:contributor>
+    <em:translator>Keyboard Cat 3</em:translator>
+
+    <em:localized>
+      <Description>
+        <em:locale>en-1</em:locale>
+        <em:name>Test 1 (en-1)</em:name>
+        <em:description>Test Description (en-1)</em:description>
+        <em:creator>Keyboard Cat (en-1)</em:creator>
+        <em:homepageURL>http://mozilla.org/en-1/</em:homepageURL>
+      </Description>
+    </em:localized>
+
+    <em:localized>
+      <Description>
+        <em:locale>en-2</em:locale>
+        <em:name>Test 1 (en-2)</em:name>
+        <em:description>Test Description (en-2)</em:description>
+        <em:creator>Keyboard Cat (en-2)</em:creator>
+        <em:homepageURL>http://mozilla.org/en-2/</em:homepageURL>
+      </Description>
+    </em:localized>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>keyboard-cats-awesome-browser@keyboard.cat</em:id>
+        <em:minVersion>3.1415</em:minVersion>
+        <em:maxVersion>3.1415</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetPlatform>XPCShell_noarch-spidermonkey</em:targetPlatform>
+    <em:targetPlatform>WINNT_x86</em:targetPlatform>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_db_sanity_1_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_db_sanity_1_2/install.rdf
new file mode 100644
index 000000000..da9b067ab
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_db_sanity_1_2/install.rdf
@@ -0,0 +1,59 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test_db_sanity_1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:name>Test 1</em:name>
+    <em:description>Test Description!!!</em:description>
+    <em:creator>Keyboard Cat</em:creator>
+    <em:homepageURL>http://mozilla.org/</em:homepageURL>
+
+    <em:contributor>Keyboard Cat 2</em:contributor>
+    <em:translator>Keyboard Cat 3</em:translator>
+    <em:translator>Keyboard Cat 4</em:translator>
+
+    <em:localized>
+      <Description>
+        <em:locale>en-1</em:locale>
+        <em:name>Test 1 (en-1)</em:name>
+        <em:description>Test Description (en-1)</em:description>
+        <em:creator>Keyboard Cat (en-1)</em:creator>
+        <em:homepageURL>http://mozilla.org/en-1/</em:homepageURL>
+      </Description>
+    </em:localized>
+
+    <em:localized>
+      <Description>
+        <em:locale>en-3</em:locale>
+        <em:name>Test 1 (en-3)</em:name>
+        <em:description>Test Description (en-3)</em:description>
+        <em:creator>Keyboard Cat (en-3)</em:creator>
+        <em:homepageURL>http://mozilla.org/en-3/</em:homepageURL>
+      </Description>
+    </em:localized>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>keyboard-cats-awesome-browser-3000@keyboard.cat</em:id>
+        <em:minVersion>3.1415</em:minVersion>
+        <em:maxVersion>3.1415</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetPlatform>XPCShell_noarch-spidermonkey</em:targetPlatform>
+    <em:targetPlatform>WINNT_i386</em:targetPlatform>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_delay_update_complete_v2/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_delay_update_complete_v2/bootstrap.js
new file mode 100644
index 000000000..c5a80c7b9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_delay_update_complete_v2/bootstrap.js
@@ -0,0 +1,10 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/AddonManager.jsm");
+
+const ADDON_ID = "test_delay_update_complete@tests.mozilla.org";
+
+function install(data, reason) {}
+
+function startup(data, reason) {}
+
+function shutdown(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_delay_update_complete_v2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_delay_update_complete_v2/install.rdf
new file mode 100644
index 000000000..3ebbe16b0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_delay_update_complete_v2/install.rdf
@@ -0,0 +1,27 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test_delay_update_complete@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Delay Update Complete</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:iconURL>chrome://foo/skin/icon.png</em:iconURL>
+    <em:aboutURL>chrome://foo/content/about.xul</em:aboutURL>
+    <em:optionsURL>chrome://foo/content/options.xul</em:optionsURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_delay_update_complete_webextension_v2/manifest.json b/toolkit/mozapps/webextensions/test/addons/test_delay_update_complete_webextension_v2/manifest.json
new file mode 100644
index 000000000..1a98f4660
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_delay_update_complete_webextension_v2/manifest.json
@@ -0,0 +1,10 @@
+{
+  "manifest_version": 2,
+  "name": "Delay Upgrade",
+  "version": "2.0",
+  "applications": {
+    "gecko": {
+      "id": "test_delay_update_complete_webext@tests.mozilla.org"
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_delay_update_defer_v2/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_delay_update_defer_v2/bootstrap.js
new file mode 100644
index 000000000..dea028488
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_delay_update_defer_v2/bootstrap.js
@@ -0,0 +1,10 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/AddonManager.jsm");
+
+const ADDON_ID = "test_delay_update_defer@tests.mozilla.org";
+
+function install(data, reason) {}
+
+function startup(data, reason) {}
+
+function shutdown(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_delay_update_defer_v2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_delay_update_defer_v2/install.rdf
new file mode 100644
index 000000000..75c7666bb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_delay_update_defer_v2/install.rdf
@@ -0,0 +1,27 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test_delay_update_defer@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Delay Update Defer</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:iconURL>chrome://foo/skin/icon.png</em:iconURL>
+    <em:aboutURL>chrome://foo/content/about.xul</em:aboutURL>
+    <em:optionsURL>chrome://foo/content/options.xul</em:optionsURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_delay_update_defer_webextension_v2/manifest.json b/toolkit/mozapps/webextensions/test/addons/test_delay_update_defer_webextension_v2/manifest.json
new file mode 100644
index 000000000..9561979dc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_delay_update_defer_webextension_v2/manifest.json
@@ -0,0 +1,10 @@
+{
+  "manifest_version": 2,
+  "name": "Delay Upgrade",
+  "version": "2.0",
+  "applications": {
+    "gecko": {
+      "id": "test_delay_update_defer_webext@tests.mozilla.org"
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_delay_update_ignore_v2/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_delay_update_ignore_v2/bootstrap.js
new file mode 100644
index 000000000..fb8fc9540
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_delay_update_ignore_v2/bootstrap.js
@@ -0,0 +1,8 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/AddonManager.jsm");
+
+function install(data, reason) {}
+
+function startup(data, reason) {}
+
+function shutdown(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_delay_update_ignore_v2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_delay_update_ignore_v2/install.rdf
new file mode 100644
index 000000000..aec4b202e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_delay_update_ignore_v2/install.rdf
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test_delay_update_ignore@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Delay Update Ignore</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:iconURL>chrome://foo/skin/icon.png</em:iconURL>
+    <em:aboutURL>chrome://foo/content/about.xul</em:aboutURL>
+    <em:optionsURL>chrome://foo/content/options.xul</em:optionsURL>
+    <em:updateURL>http://localhost:4444/data/test_delay_updates_ignore.rdf</em:updateURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_delay_update_ignore_webextension_v2/manifest.json b/toolkit/mozapps/webextensions/test/addons/test_delay_update_ignore_webextension_v2/manifest.json
new file mode 100644
index 000000000..d9200ec11
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_delay_update_ignore_webextension_v2/manifest.json
@@ -0,0 +1,10 @@
+{
+  "manifest_version": 2,
+  "name": "Delay Upgrade",
+  "version": "2.0",
+  "applications": {
+    "gecko": {
+      "id": "test_delay_update_ignore_webext@tests.mozilla.org"
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_dictionary/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_dictionary/chrome.manifest
new file mode 100644
index 000000000..c945c928c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_dictionary/chrome.manifest
@@ -0,0 +1 @@
+content dict ./
diff --git a/toolkit/mozapps/webextensions/test/addons/test_dictionary/dictionaries/ab-CD.dic b/toolkit/mozapps/webextensions/test/addons/test_dictionary/dictionaries/ab-CD.dic
new file mode 100644
index 000000000..3feac546d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_dictionary/dictionaries/ab-CD.dic
@@ -0,0 +1,2 @@
+1
+test1
diff --git a/toolkit/mozapps/webextensions/test/addons/test_dictionary/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_dictionary/install.rdf
new file mode 100644
index 000000000..9e66ab237
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_dictionary/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>ab-CD@dictionaries.addons.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:type>64</em:type>
+    <em:unpack>true</em:unpack>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Dictionary</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_dictionary_2/dictionaries/ab-CD.dic b/toolkit/mozapps/webextensions/test/addons/test_dictionary_2/dictionaries/ab-CD.dic
new file mode 100644
index 000000000..b35b9c1a6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_dictionary_2/dictionaries/ab-CD.dic
@@ -0,0 +1,2 @@
+1
+test2
diff --git a/toolkit/mozapps/webextensions/test/addons/test_dictionary_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_dictionary_2/install.rdf
new file mode 100644
index 000000000..a74a114fd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_dictionary_2/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>ab-CD@dictionaries.addons.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:unpack>true</em:unpack>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Dictionary</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_dictionary_3/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_dictionary_3/install.rdf
new file mode 100644
index 000000000..c056e87ff
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_dictionary_3/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>ab-CD@dictionaries.addons.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:type>64</em:type>
+    <em:unpack>true</em:unpack>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Dictionary</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_dictionary_4/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_dictionary_4/install.rdf
new file mode 100644
index 000000000..7470284ba
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_dictionary_4/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>ef@dictionaries.addons.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:unpack>true</em:unpack>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Dictionary ef</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_dictionary_5/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_dictionary_5/install.rdf
new file mode 100644
index 000000000..11eba90d7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_dictionary_5/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>gh@dictionaries.addons.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:type>64</em:type>
+    <em:unpack>true</em:unpack>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Dictionary gh</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_distribution1_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_distribution1_2/install.rdf
new file mode 100644
index 000000000..8bd5966c9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_distribution1_2/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Distributed add-ons test</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_experiment1/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_experiment1/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_experiment1/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/addons/test_experiment1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_experiment1/install.rdf
new file mode 100644
index 000000000..414a36b30
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_experiment1/install.rdf
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>experiment1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:type>128</em:type>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Experiment 1</em:name>
+    <em:description>Test Description</em:description>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_filepointer/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_filepointer/install.rdf
new file mode 100644
index 000000000..5e64b65c1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_filepointer/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>File Pointer Test</em:name>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_getresource/icon.png b/toolkit/mozapps/webextensions/test/addons/test_getresource/icon.png
new file mode 100644
index 000000000..40765b0e2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_getresource/icon.png
@@ -0,0 +1 @@
+Dummy icon file
\ No newline at end of file
diff --git a/toolkit/mozapps/webextensions/test/addons/test_getresource/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_getresource/install.rdf
new file mode 100644
index 000000000..8d2740dbb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_getresource/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 1</em:name>
+    <em:description>Test Description</em:description>
+    <em:bootstrap>true</em:bootstrap>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_getresource/subdir/subfile.txt b/toolkit/mozapps/webextensions/test/addons/test_getresource/subdir/subfile.txt
new file mode 100644
index 000000000..a28d18162
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_getresource/subdir/subfile.txt
@@ -0,0 +1 @@
+Dummy file in subdirectory
\ No newline at end of file
diff --git a/toolkit/mozapps/webextensions/test/addons/test_hotfix_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_hotfix_1/install.rdf
new file mode 100644
index 000000000..7fcc1a09e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_hotfix_1/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>hotfix@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_hotfix_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_hotfix_2/install.rdf
new file mode 100644
index 000000000..fd843dbe9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_hotfix_2/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>hotfix@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install1/icon.png b/toolkit/mozapps/webextensions/test/addons/test_install1/icon.png
new file mode 100644
index 000000000..41409edfe
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install1/icon.png
@@ -0,0 +1 @@
+Fake icon image
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install1/icon64.png b/toolkit/mozapps/webextensions/test/addons/test_install1/icon64.png
new file mode 100644
index 000000000..41409edfe
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install1/icon64.png
@@ -0,0 +1 @@
+Fake icon image
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_install1/install.rdf
new file mode 100644
index 000000000..efe3f18ae
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install1/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<!-- An extension that is compatible with the XPCShell test suite -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install2_1/icon.png b/toolkit/mozapps/webextensions/test/addons/test_install2_1/icon.png
new file mode 100644
index 000000000..41409edfe
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install2_1/icon.png
@@ -0,0 +1 @@
+Fake icon image
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install2_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_install2_1/install.rdf
new file mode 100644
index 000000000..116eb7069
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install2_1/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<!-- An extension that is compatible with the XPCShell test suite -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon2@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Real Test 2</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install2_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_install2_2/install.rdf
new file mode 100644
index 000000000..7197ea1fb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install2_2/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<!-- An extension that is compatible with the XPCShell test suite -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon2@tests.mozilla.org</em:id>
+    <em:version>3.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Real Test 3</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install3/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_install3/install.rdf
new file mode 100644
index 000000000..8e72017ad
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install3/install.rdf
@@ -0,0 +1,27 @@
+<?xml version="1.0"?>
+
+<!-- An extension that is incompatible with the XPCShell test suite until
+     a compatibility update check is performed -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon3@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Real Test 4</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:updateURL>http://localhost:4444/data/test_install.rdf</em:updateURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install4/addon4.xpi b/toolkit/mozapps/webextensions/test/addons/test_install4/addon4.xpi
new file mode 100644
index 000000000..e57a4f5b6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install4/addon4.xpi
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install4/addon5.jar b/toolkit/mozapps/webextensions/test/addons/test_install4/addon5.jar
new file mode 100644
index 000000000..93fbfbe6e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install4/addon5.jar
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install4/addon6.xpi b/toolkit/mozapps/webextensions/test/addons/test_install4/addon6.xpi
new file mode 100644
index 000000000..3613dab04
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install4/addon6.xpi
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install4/addon7.jar b/toolkit/mozapps/webextensions/test/addons/test_install4/addon7.jar
new file mode 100644
index 000000000..1af178887
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install4/addon7.jar
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install4/badaddon.jar b/toolkit/mozapps/webextensions/test/addons/test_install4/badaddon.jar
new file mode 100644
index 000000000..33695b99f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install4/badaddon.jar
@@ -0,0 +1 @@
+This is corrupt
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install4/badaddon.xpi b/toolkit/mozapps/webextensions/test/addons/test_install4/badaddon.xpi
new file mode 100644
index 000000000..33695b99f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install4/badaddon.xpi
@@ -0,0 +1 @@
+This is corrupt
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install4/icon.png b/toolkit/mozapps/webextensions/test/addons/test_install4/icon.png
new file mode 100644
index 000000000..57f2c2eb6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install4/icon.png
@@ -0,0 +1 @@
+This is ignored
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install4/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_install4/install.rdf
new file mode 100644
index 000000000..5e99ae29a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install4/install.rdf
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+
+<!-- A multi-package XPI -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:type>32</em:type>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install5/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_install5/chrome.manifest
new file mode 100644
index 000000000..703adf2a7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install5/chrome.manifest
@@ -0,0 +1 @@
+binary-component components/mycomponent.so

diff --git a/toolkit/mozapps/webextensions/test/addons/test_install5/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_install5/install.rdf
new file mode 100644
index 000000000..1f96e4b49
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install5/install.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+
+<!-- An extension that is incompatible with the XPCShell test suite and
+     has binary components, so won't be compatible-by-default. -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon5@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Real Test 5</em:name>
+    <em:description>Test Description</em:description>
+    <em:unpack>true</em:unpack>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install6/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_install6/install.rdf
new file mode 100644
index 000000000..b1f97c1fd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install6/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<!-- An extension that has a compatibility override making it incompatible. -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon6@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon Test 6</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install7/addon1.xpi b/toolkit/mozapps/webextensions/test/addons/test_install7/addon1.xpi
new file mode 100644
index 000000000..9c283d1d4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install7/addon1.xpi
@@ -0,0 +1 @@
+This isn't a valid zip file.
\ No newline at end of file
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install7/addon2.xpi b/toolkit/mozapps/webextensions/test/addons/test_install7/addon2.xpi
new file mode 100644
index 000000000..9c283d1d4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install7/addon2.xpi
@@ -0,0 +1 @@
+This isn't a valid zip file.
\ No newline at end of file
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install7/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_install7/install.rdf
new file mode 100644
index 000000000..5e99ae29a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install7/install.rdf
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+
+<!-- A multi-package XPI -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:type>32</em:type>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_install8/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_install8/install.rdf
new file mode 100644
index 000000000..5e99ae29a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_install8/install.rdf
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+
+<!-- A multi-package XPI -->
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:type>32</em:type>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_jetpack/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_jetpack/bootstrap.js
new file mode 100644
index 000000000..2449baeb8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_jetpack/bootstrap.js
@@ -0,0 +1,17 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+function install(data, reason) {
+  Services.prefs.setIntPref("jetpacktest.installed_version", 1);
+}
+
+function startup(data, reason) {
+  Services.prefs.setIntPref("jetpacktest.active_version", 1);
+}
+
+function shutdown(data, reason) {
+  Services.prefs.setIntPref("jetpacktest.active_version", 0);
+}
+
+function uninstall(data, reason) {
+  Services.prefs.setIntPref("jetpacktest.installed_version", 0);
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_jetpack/harness-options.json b/toolkit/mozapps/webextensions/test/addons/test_jetpack/harness-options.json
new file mode 100644
index 000000000..9e26dfeeb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_jetpack/harness-options.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/toolkit/mozapps/webextensions/test/addons/test_jetpack/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_jetpack/install.rdf
new file mode 100644
index 000000000..e88794a60
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_jetpack/install.rdf
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>jetpack@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test jetpack</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:iconURL>chrome://foo/skin/icon.png</em:iconURL>
+    <em:aboutURL>chrome://foo/content/about.xul</em:aboutURL>
+    <em:optionsURL>chrome://foo/content/options.xul</em:optionsURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_langpack/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_langpack/chrome.manifest
new file mode 100644
index 000000000..16fe819a2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_langpack/chrome.manifest
@@ -0,0 +1 @@
+locale test-langpack    x-testing locale/x-testing
diff --git a/toolkit/mozapps/webextensions/test/addons/test_langpack/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_langpack/install.rdf
new file mode 100644
index 000000000..056f6dff5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_langpack/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>langpack-x-testing@tests.mozilla.org</em:id>
+    <em:type>8</em:type>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Language Pack x-testing</em:name>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_locale/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_locale/install.rdf
new file mode 100644
index 000000000..d8d027b93
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_locale/install.rdf
@@ -0,0 +1,61 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:localized>
+      <Description em:locale="fr-FR">
+        <em:locale/>                    <!-- Should be ignored and not fail -->
+        <em:name>fr-FR Name</em:name>
+        <em:description>fr-FR Description</em:description>
+        <em:contributor>Fr Contributor 1</em:contributor>
+        <em:contributor>Fr Contributor 2</em:contributor>
+        <em:contributor>Fr Contributor 3</em:contributor>
+      </Description>
+    </em:localized>
+
+    <em:localized>
+      <Description em:locale="de-DE">
+        <em:name>de-DE Name</em:name>
+      </Description>
+    </em:localized>
+
+    <em:localized>
+      <Description em:locale="es-ES">
+        <em:name>es-ES Name</em:name>
+        <em:description>es-ES Description</em:description>
+      </Description>
+    </em:localized>
+
+    <!-- Subsequent definitions for the same locale should be ignored -->
+    <em:localized>
+      <Description em:locale="fr-FR">
+        <em:name>Repeated locale</em:name>
+      </Description>
+    </em:localized>
+
+    <!-- Properties with no listed locale should be ignored -->
+    <em:localized>
+      <Description>
+        <em:name>Missing locale</em:name>
+      </Description>
+    </em:localized>
+
+    <!-- Front End MetaData -->
+    <em:name>Fallback Name</em:name>
+    <em:description>Fallback Description</em:description>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_locked2_5/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_locked2_5/install.rdf
new file mode 100644
index 000000000..09655c2a6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_locked2_5/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon5@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 5</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>2</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_locked2_6/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_locked2_6/install.rdf
new file mode 100644
index 000000000..75f110d2a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_locked2_6/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon6@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 6</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>2</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_migrate4_6/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_migrate4_6/install.rdf
new file mode 100644
index 000000000..5924982f7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_migrate4_6/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon6@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 6</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_migrate4_7/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_migrate4_7/install.rdf
new file mode 100644
index 000000000..072751cf2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_migrate4_7/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon7@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 7</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_migrate6/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_migrate6/install.rdf
new file mode 100644
index 000000000..ff8280ae3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_migrate6/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon6@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 6</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_migrate7/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_migrate7/install.rdf
new file mode 100644
index 000000000..fd1df0e08
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_migrate7/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon7@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 7</em:name>
+    <em:description>Test Description</em:description>
+    <em:unpack>true</em:unpack>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_migrate8/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/test_migrate8/chrome.manifest
new file mode 100644
index 000000000..8570bae82
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_migrate8/chrome.manifest
@@ -0,0 +1,6 @@
+content test-addon-1 chrome/content
+  
+  locale test-addon-1 en-US locale/en-US
+  locale test-addon-1    fr-FR locale/fr-FR  
+overlay	chrome://browser/content/browser.xul    chrome://test-addon-1/content/overlay.xul
+binary-component components/something.so
diff --git a/toolkit/mozapps/webextensions/test/addons/test_migrate8/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_migrate8/install.rdf
new file mode 100644
index 000000000..61ed24763
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_migrate8/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon8@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 8</em:name>
+    <em:description>Test Description</em:description>
+    <em:unpack>true</em:unpack>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_migrate9/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_migrate9/install.rdf
new file mode 100644
index 000000000..116dd0176
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_migrate9/install.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0"?>

+

+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"

+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">

+

+  <Description about="urn:mozilla:install-manifest">

+    <em:id>addon9@tests.mozilla.org</em:id>

+    <em:version>1.0</em:version>

+    <em:internalName>theme1/1.0</em:internalName>

+

+    <!-- Front End MetaData -->

+    <em:name>Test Theme 1</em:name>

+    <em:description>Test Description</em:description>

+

+    <em:targetApplication>

+      <Description>

+        <em:id>xpcshell@tests.mozilla.org</em:id>

+        <em:minVersion>1</em:minVersion>

+        <em:maxVersion>2</em:maxVersion>

+      </Description>

+    </em:targetApplication>

+

+    <em:skinnable>true</em:skinnable>

+

+  </Description>

+</RDF>

diff --git a/toolkit/mozapps/webextensions/test/addons/test_symbol/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_symbol/bootstrap.js
new file mode 100644
index 000000000..4eb8b4875
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_symbol/bootstrap.js
@@ -0,0 +1,62 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/AddonManager.jsm");
+
+const PASS_PREF = "symboltest.instanceid.pass";
+const FAIL_BOGUS_PREF = "symboltest.instanceid.fail_bogus";
+const FAIL_ID_PREF = "symboltest.instanceid.fail_bogus";
+const ADDON_ID = "test_symbol@tests.mozilla.org";
+
+function install(data, reason) {}
+
+// normally we would use BootstrapMonitor here, but we need a reference to
+// the symbol inside `XPIProvider.jsm`.
+function startup(data, reason) {
+  Services.prefs.setBoolPref(PASS_PREF, false);
+  Services.prefs.setBoolPref(FAIL_BOGUS_PREF, false);
+  Services.prefs.setBoolPref(FAIL_ID_PREF, false);
+
+  // test with the correct symbol
+  if (data.hasOwnProperty("instanceID") && data.instanceID) {
+    AddonManager.getAddonByInstanceID(data.instanceID)
+      .then(addon => {
+        if (addon.id == ADDON_ID) {
+          Services.prefs.setBoolPref(PASS_PREF, true);
+        }
+      }).catch(err => {
+        throw Error("no addon found for symbol");
+      });
+
+  }
+
+  // test with a totally bogus symbol
+  AddonManager.getAddonByInstanceID(Symbol("bad symbol"))
+    .then(addon => {
+      // there is no symbol by this name, so null should be returned
+      if (addon == null) {
+        Services.prefs.setBoolPref(FAIL_BOGUS_PREF, true);
+      } else {
+        throw Error("bad symbol should not match:", addon);
+      }
+    }).catch(err => {
+      throw Error("promise should not have rejected: " + err);
+    });
+
+  // try to make a matching symbol - this should fail because it's not a
+  // reference to the same symbol stored inside the addons manager.
+  AddonManager.getAddonByInstanceID(Symbol(ADDON_ID))
+    .then(addon => {
+      // there is no symbol by this name, so null should be returned
+      if (addon == null) {
+        Services.prefs.setBoolPref(FAIL_ID_PREF, true);
+      } else {
+        throw Error("bad symbol should not match:", addon);
+      }
+    }).catch(err => {
+      throw Error("promise should not have rejected: " + err);
+    });
+
+}
+
+function shutdown(data, reason) {}
+
+function uninstall(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_symbol/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_symbol/install.rdf
new file mode 100644
index 000000000..adccda552
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_symbol/install.rdf
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test_symbol@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Symbol</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:iconURL>chrome://foo/skin/icon.png</em:iconURL>
+    <em:aboutURL>chrome://foo/content/about.xul</em:aboutURL>
+    <em:optionsURL>chrome://foo/content/options.xul</em:optionsURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_theme/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_theme/install.rdf
new file mode 100644
index 000000000..e1a37d0a4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_theme/install.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>theme1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:internalName>theme1/1.0</em:internalName>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Theme 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:skinnable>true</em:skinnable>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_theme/preview.png b/toolkit/mozapps/webextensions/test/addons/test_theme/preview.png
new file mode 100644
index 000000000..321ce47cf
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_theme/preview.png
@@ -0,0 +1 @@
+Fake preview image
diff --git a/toolkit/mozapps/webextensions/test/addons/test_undoincompatible/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_undoincompatible/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_undoincompatible/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/addons/test_undoincompatible/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_undoincompatible/install.rdf
new file mode 100644
index 000000000..b038ebc51
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_undoincompatible/install.rdf
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>incompatible@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Incompatible Addon</em:name>
+    <em:description>I am incompatible</em:description>
+
+    <em:iconURL>chrome://foo/skin/icon.png</em:iconURL>
+    <em:aboutURL>chrome://foo/content/about.xul</em:aboutURL>
+    <em:optionsURL>chrome://foo/content/options.xul</em:optionsURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>2</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_undouninstall1/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_undouninstall1/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_undouninstall1/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/addons/test_undouninstall1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_undouninstall1/install.rdf
new file mode 100644
index 000000000..4178fe929
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_undouninstall1/install.rdf
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>undouninstall1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:iconURL>chrome://foo/skin/icon.png</em:iconURL>
+    <em:aboutURL>chrome://foo/content/about.xul</em:aboutURL>
+    <em:optionsURL>chrome://foo/content/options.xul</em:optionsURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_update/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_update/install.rdf
new file mode 100644
index 000000000..801a35a8f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_update/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_update12/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_update12/install.rdf
new file mode 100644
index 000000000..3589cb55c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_update12/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon12@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 12</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_update8/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_update8/install.rdf
new file mode 100644
index 000000000..43e31af42
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_update8/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon8@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test 8</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_update_multi1/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_update_multi1/bootstrap.js
new file mode 100644
index 000000000..24c778c09
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_update_multi1/bootstrap.js
@@ -0,0 +1,5 @@
+
+function install(data, reason) {}
+function startup(data, reason) {}
+function shutdown(data, reason) {}
+function uninstall(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_update_multi1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_update_multi1/install.rdf
new file mode 100644
index 000000000..9f955562c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_update_multi1/install.rdf
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+<Description about="urn:mozilla:install-manifest">
+  <em:id>updatemulti@tests.mozilla.org</em:id>
+  <em:version>1.0</em:version>
+  <em:updateURL>http://localhost:4444/data/test_update_multi.rdf</em:updateURL>
+  <em:bootstrap>true</em:bootstrap>
+  <em:name>Test Addon 1</em:name>
+<em:targetApplication><Description>
+  <em:id>xpcshell@tests.mozilla.org</em:id>
+  <em:minVersion>1</em:minVersion>
+  <em:maxVersion>1</em:maxVersion>
+</Description></em:targetApplication>
+</Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_update_multi2/addon.xpi b/toolkit/mozapps/webextensions/test/addons/test_update_multi2/addon.xpi
new file mode 100644
index 000000000..febff06fa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_update_multi2/addon.xpi
diff --git a/toolkit/mozapps/webextensions/test/addons/test_update_multi2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_update_multi2/install.rdf
new file mode 100644
index 000000000..44bdb05ba
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_update_multi2/install.rdf
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+<Description about="urn:mozilla:install-manifest">
+  <em:id>updatemulti@tests.mozilla.org</em:id>
+  <em:type>32</em:type>
+  <em:version>2.0</em:version>
+</Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_updateid1/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_updateid1/bootstrap.js
new file mode 100644
index 000000000..24c778c09
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_updateid1/bootstrap.js
@@ -0,0 +1,5 @@
+
+function install(data, reason) {}
+function startup(data, reason) {}
+function shutdown(data, reason) {}
+function uninstall(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_updateid1/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_updateid1/install.rdf
new file mode 100644
index 000000000..803b64e5f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_updateid1/install.rdf
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+<Description about="urn:mozilla:install-manifest">
+  <em:id>addon1@tests.mozilla.org</em:id>
+  <em:version>1.0</em:version>
+  <em:updateURL>http://localhost:4444/data/test_updateid.rdf</em:updateURL>
+  <em:bootstrap>true</em:bootstrap>
+  <em:name>Test Addon 1</em:name>
+<em:targetApplication><Description>
+  <em:id>xpcshell@tests.mozilla.org</em:id>
+  <em:minVersion>1</em:minVersion>
+  <em:maxVersion>1</em:maxVersion>
+</Description></em:targetApplication>
+</Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/test_updateid2/bootstrap.js b/toolkit/mozapps/webextensions/test/addons/test_updateid2/bootstrap.js
new file mode 100644
index 000000000..24c778c09
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_updateid2/bootstrap.js
@@ -0,0 +1,5 @@
+
+function install(data, reason) {}
+function startup(data, reason) {}
+function shutdown(data, reason) {}
+function uninstall(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/addons/test_updateid2/install.rdf b/toolkit/mozapps/webextensions/test/addons/test_updateid2/install.rdf
new file mode 100644
index 000000000..041af57f0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/test_updateid2/install.rdf
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+<Description about="urn:mozilla:install-manifest">
+  <em:id>addon1.changed@tests.mozilla.org</em:id>
+  <em:version>2.0</em:version>
+  <em:updateURL>http://localhost:4444/data/test_updateid.rdf</em:updateURL>
+  <em:bootstrap>true</em:bootstrap>
+  <em:name>Test Addon 1</em:name>
+<em:targetApplication><Description>
+  <em:id>xpcshell@tests.mozilla.org</em:id>
+  <em:minVersion>1</em:minVersion>
+  <em:maxVersion>1</em:maxVersion>
+</Description></em:targetApplication>
+</Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/upgradeable1x2-3_1/install.rdf b/toolkit/mozapps/webextensions/test/addons/upgradeable1x2-3_1/install.rdf
new file mode 100644
index 000000000..76e662977
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/upgradeable1x2-3_1/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>upgradeable1x2-3@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Test min 1 max 2 upgrade to 3</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/upgradeable1x2-3_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/upgradeable1x2-3_2/install.rdf
new file mode 100644
index 000000000..e57672c42
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/upgradeable1x2-3_2/install.rdf
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>upgradeable1x2-3@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>3</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Test min 1 max 2 upgrade to 3</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/webextension_1/chrome.manifest b/toolkit/mozapps/webextensions/test/addons/webextension_1/chrome.manifest
new file mode 100644
index 000000000..16108ce18
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/webextension_1/chrome.manifest
@@ -0,0 +1 @@
+content webex ./
diff --git a/toolkit/mozapps/webextensions/test/addons/webextension_1/manifest.json b/toolkit/mozapps/webextensions/test/addons/webextension_1/manifest.json
new file mode 100644
index 000000000..2ca5f40f7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/webextension_1/manifest.json
@@ -0,0 +1,14 @@
+{
+  "name": "Web Extension Name",
+  "version": "1.0",
+  "manifest_version": 2,
+  "applications": {
+    "gecko": {
+      "id": "webextension1@tests.mozilla.org"
+    }
+  },
+  "icons": {
+    "48": "icon48.png",
+    "64": "icon64.png"
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/webextension_2/install.rdf b/toolkit/mozapps/webextensions/test/addons/webextension_2/install.rdf
new file mode 100644
index 000000000..653481ed0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/webextension_2/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>first-webextension2@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>XPI Add-on 1</em:name>
+    <em:description>XPI Add-on 1 - Description</em:description>
+    <em:creator>XPI Add-on 1 - Creator</em:creator>
+    <em:developer>XPI Add-on 1 - First Developer</em:developer>
+    <em:translator>XPI Add-on 1 - First Translator</em:translator>
+    <em:contributor>XPI Add-on 1 - First Contributor</em:contributor>
+    <em:homepageURL>http://localhost/xpi/1/homepage.html</em:homepageURL>
+    <em:optionsURL>http://localhost/xpi/1/options.html</em:optionsURL>
+    <em:aboutURL>http://localhost/xpi/1/about.html</em:aboutURL>
+    <em:iconURL>http://localhost/xpi/1/icon.png</em:iconURL>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/addons/webextension_2/manifest.json b/toolkit/mozapps/webextensions/test/addons/webextension_2/manifest.json
new file mode 100644
index 000000000..5b470d430
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/webextension_2/manifest.json
@@ -0,0 +1,10 @@
+{
+  "name": "Web Extension Name",
+  "version": "1.0",
+  "manifest_version": 2,
+  "applications": {
+    "gecko": {
+      "id": "last-webextension2@tests.mozilla.org"
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/webextension_3/_locales/en/messages.json b/toolkit/mozapps/webextensions/test/addons/webextension_3/_locales/en/messages.json
new file mode 100644
index 000000000..36868d414
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/webextension_3/_locales/en/messages.json
@@ -0,0 +1,10 @@
+{
+  "name": {
+    "message": "foo ☹",
+    "description": "foo"
+  },
+  "desc": {
+    "message": "bar ☹",
+    "description": "bar"
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/webextension_3/_locales/fr/messages.json b/toolkit/mozapps/webextensions/test/addons/webextension_3/_locales/fr/messages.json
new file mode 100644
index 000000000..c3d02ffde
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/webextension_3/_locales/fr/messages.json
@@ -0,0 +1,10 @@
+{
+  "name": {
+    "message": "le foo ☺",
+    "description": "foo"
+  },
+  "desc": {
+    "message": "le bar ☺",
+    "description": "bar"
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/addons/webextension_3/manifest.json b/toolkit/mozapps/webextensions/test/addons/webextension_3/manifest.json
new file mode 100644
index 000000000..b6ae6f10f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/addons/webextension_3/manifest.json
@@ -0,0 +1,12 @@
+{
+  "name": "Web Extensiøn __MSG_name__",
+  "description": "Descriptïon __MSG_desc__ of add-on",
+  "version": "1.0",
+  "manifest_version": 2,
+  "default_locale": "en",
+  "applications": {
+    "gecko": {
+      "id": "webextension3@tests.mozilla.org"
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/.eslintrc.js b/toolkit/mozapps/webextensions/test/browser/.eslintrc.js
new file mode 100644
index 000000000..2852eb81d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/.eslintrc.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = { // eslint-disable-line no-undef
+  "extends": [
+    "../../../../../testing/mochitest/browser.eslintrc.js"
+  ]
+};
diff --git a/toolkit/mozapps/webextensions/test/browser/addon_about.xul b/toolkit/mozapps/webextensions/test/browser/addon_about.xul
new file mode 100644
index 000000000..c2b8b935e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addon_about.xul
@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        id="addon-test-about-window">
+  <label value="Oh hai!"/>
+</window>
diff --git a/toolkit/mozapps/webextensions/test/browser/addon_prefs.xul b/toolkit/mozapps/webextensions/test/browser/addon_prefs.xul
new file mode 100644
index 000000000..85cfe6b2d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addon_prefs.xul
@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        id="addon-test-pref-window">
+  <label value="Oh hai!"/>
+</window>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_1.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_1.xpi
new file mode 100644
index 000000000..d13e5d66e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_1/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_1/install.rdf
new file mode 100644
index 000000000..5199c2f3f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_1/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug557956-1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon1</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_10.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_10.xpi
new file mode 100644
index 000000000..e1d6ac586
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_10.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_10/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_10/install.rdf
new file mode 100644
index 000000000..c061814b6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_10/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug557956-10@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>0.3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon10</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_2.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_2.xpi
new file mode 100644
index 000000000..1380e7b5b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_2/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_2/install.rdf
new file mode 100644
index 000000000..1be5422b2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_2/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug557956-2@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>0.3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon2</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_3.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_3.xpi
new file mode 100644
index 000000000..46326b04c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_3.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_3/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_3/install.rdf
new file mode 100644
index 000000000..54887a30e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_3/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug557956-3@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>0.3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon3</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_4.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_4.xpi
new file mode 100644
index 000000000..95de79b79
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_4.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_4/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_4/install.rdf
new file mode 100644
index 000000000..79946b0f0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_4/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug557956-4@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>1.0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon4</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_5.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_5.xpi
new file mode 100644
index 000000000..005d7ef21
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_5.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_5/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_5/install.rdf
new file mode 100644
index 000000000..067af1ba1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_5/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug557956-5@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>0.3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon5</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_6.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_6.xpi
new file mode 100644
index 000000000..89f751a03
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_6.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_6/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_6/install.rdf
new file mode 100644
index 000000000..37d7e6a7c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_6/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug557956-6@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>0.3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon6</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_7.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_7.xpi
new file mode 100644
index 000000000..77de37c2a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_7.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_7/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_7/install.rdf
new file mode 100644
index 000000000..461facbb2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_7/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug557956-7@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>0.3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon7</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_8_1.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_8_1.xpi
new file mode 100644
index 000000000..666ae0910
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_8_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_8_1/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_8_1/install.rdf
new file mode 100644
index 000000000..2111b9c64
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_8_1/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug557956-8@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>0.3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon8</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_9_1.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_9_1.xpi
new file mode 100644
index 000000000..ad9367dc1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_9_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_9_1/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_9_1/install.rdf
new file mode 100644
index 000000000..032e9adaf
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug557956_9_1/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug557956-9@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>0.3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Addon9</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_1.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_1.xpi
new file mode 100644
index 000000000..20ae35539
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_1/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_1/install.rdf
new file mode 100644
index 000000000..d9f0ca745
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_1/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug567127_1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>browser_bug567127 #1</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_2.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_2.xpi
new file mode 100644
index 000000000..3c99022cf
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_2/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_2/install.rdf
new file mode 100644
index 000000000..8809ffb58
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug567127_2/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug567127_2@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>browser_bug567127 #2</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_1.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_1.xpi
new file mode 100644
index 000000000..c438cbd0b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_1/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_1/install.rdf
new file mode 100644
index 000000000..c768d7881
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_1/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug596336-1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Bootstrap upgrade test</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_2.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_2.xpi
new file mode 100644
index 000000000..a87191efe
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_2/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_2/install.rdf
new file mode 100644
index 000000000..bed489c3e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_bug596336_2/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug596336-1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Bootstrap upgrade test</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop1.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop1.xpi
new file mode 100644
index 000000000..d8b4d083c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop1.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop1/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop1/install.rdf
new file mode 100644
index 000000000..9bcd43e87
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop1/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>dragdrop1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Drag Drop test 1</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop2.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop2.xpi
new file mode 100644
index 000000000..e4441cb19
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop2.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop2/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop2/install.rdf
new file mode 100644
index 000000000..4789abfaf
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_dragdrop2/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>dragdrop2@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Drag Drop test 2</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_experiment1.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_experiment1.xpi
new file mode 100644
index 000000000..1c2b793f1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_experiment1.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_experiment1/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_experiment1/install.rdf
new file mode 100644
index 000000000..92f20a4ef
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_experiment1/install.rdf
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test-experiment1@experiments.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:type>128</em:type>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Experiment 1</em:name>
+    <em:description>Test Description</em:description>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1.xpi
new file mode 100644
index 000000000..be453ce9c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/bootstrap.js b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/bootstrap.js
new file mode 100644
index 000000000..7871af738
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/bootstrap.js
@@ -0,0 +1,8 @@
+function install (params, aReason) {
+}
+function uninstall (params, aReason) {
+}
+function startup (params, aReason) {
+}
+function shutdown (params, aReason) {
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/chrome.manifest b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/chrome.manifest
new file mode 100644
index 000000000..8884e3974
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/chrome.manifest
@@ -0,0 +1 @@
+locale inlinesettings en-US ./
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/install.rdf
new file mode 100644
index 000000000..18fcec167
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/install.rdf
@@ -0,0 +1,27 @@
+<?xml version="1.0" ?>
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>inlinesettings1@tests.mozilla.org</em:id>
+    <em:name>Inline Settings (Bootstrap)</em:name>
+    <em:version>1</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/options.xul b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/options.xul
new file mode 100644
index 000000000..cd4f72387
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/options.xul
@@ -0,0 +1,23 @@
+<?xml version="1.0" ?>
+
+<!DOCTYPE vbox SYSTEM "chrome://inlinesettings/locale/settings.dtd">
+
+<vbox xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <setting pref="extensions.inlinesettings1.bool" type="bool" title="Bool" checkboxlabel="&checkbox;"/>
+  <setting pref="extensions.inlinesettings1.boolint" type="boolint" on="1" off="2" title="BoolInt"/>
+  <setting pref="extensions.inlinesettings1.integer" type="integer" title="Integer"/>
+  <setting pref="extensions.inlinesettings1.string" type="string" title="String"/>
+  <setting type="control" title="Menulist">
+    <menulist sizetopopup="always" oncommand="window._testValue = this.value;">
+      <menupopup>
+        <menuitem label="Alpha" value="1" />
+        <menuitem label="Bravo" value="2" />
+        <menuitem label="Charlie" value="3" />
+      </menupopup>
+    </menulist>
+  </setting>
+  <setting pref="extensions.inlinesettings1.color" type="color" title="Color"/>
+  <setting pref="extensions.inlinesettings1.file" type="file" title="File"/>
+  <setting pref="extensions.inlinesettings1.directory" type="directory" title="Directory"/>
+  <setting pref="extensions.inlinesettings1.integer-size" type="integer" title="Integer with size" size="1" />
+</vbox>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/settings.dtd b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/settings.dtd
new file mode 100644
index 000000000..6864a3d5a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1/settings.dtd
@@ -0,0 +1 @@
+<!ENTITY checkbox "Check box label">
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom.xpi
new file mode 100644
index 000000000..6e937c5cc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/binding.xml b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/binding.xml
new file mode 100644
index 000000000..6ac72a03c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/binding.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<bindings xmlns="http://www.mozilla.org/xbl"
+          xmlns:xbl="http://www.mozilla.org/xbl"
+          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <binding id="custom"
+           extends="chrome://mozapps/content/extensions/setting.xml#setting-base">
+    <content>
+      <xul:vbox>
+        <xul:hbox class="preferences-alignment">
+          <xul:label anonid="label" class="preferences-title" flex="1" xbl:inherits="xbl:text=title"/>
+        </xul:hbox>
+        <xul:description class="preferences-description" flex="1" xbl:inherits="xbl:text=desc"/>
+      </xul:vbox>
+      <xul:hbox class="preferences-alignment">
+        <xul:label anonid="input" value="Woah!"/>
+      </xul:hbox>
+    </content>
+  </binding>
+</bindings>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/bootstrap.js b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/bootstrap.js
new file mode 100644
index 000000000..7871af738
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/bootstrap.js
@@ -0,0 +1,8 @@
+function install (params, aReason) {
+}
+function uninstall (params, aReason) {
+}
+function startup (params, aReason) {
+}
+function shutdown (params, aReason) {
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/chrome.manifest b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/chrome.manifest
new file mode 100644
index 000000000..f1eaef1d0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/chrome.manifest
@@ -0,0 +1,2 @@
+content inlinesettings ./ contentaccessible=yes
+locale inlinesettings en-US ./
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/install.rdf
new file mode 100644
index 000000000..a04046a74
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/install.rdf
@@ -0,0 +1,27 @@
+<?xml version="1.0" ?>
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>inlinesettings1@tests.mozilla.org</em:id>
+    <em:name>Inline Settings (Bootstrap)</em:name>
+    <em:version>2</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/options.xul b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/options.xul
new file mode 100644
index 000000000..148fb9856
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/options.xul
@@ -0,0 +1,5 @@
+<?xml version="1.0" ?>
+<!DOCTYPE vbox SYSTEM "chrome://inlinesettings/locale/string.dtd">
+<vbox xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <setting type="custom" title="&custom.title;" style="background-color: blue; display: -moz-grid-line; -moz-binding: url('chrome://inlinesettings/content/binding.xml#custom');"/>
+</vbox>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/string.dtd b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/string.dtd
new file mode 100644
index 000000000..0b2dcc8fe
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_custom/string.dtd
@@ -0,0 +1 @@
+<!ENTITY custom.title "Custom">
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info.xpi
new file mode 100644
index 000000000..4c939c05b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info/bootstrap.js b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info/bootstrap.js
new file mode 100644
index 000000000..7871af738
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info/bootstrap.js
@@ -0,0 +1,8 @@
+function install (params, aReason) {
+}
+function uninstall (params, aReason) {
+}
+function startup (params, aReason) {
+}
+function shutdown (params, aReason) {
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info/install.rdf
new file mode 100644
index 000000000..ba90bd57b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info/install.rdf
@@ -0,0 +1,28 @@
+<?xml version="1.0" ?>
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>inlinesettings1@tests.mozilla.org</em:id>
+    <em:name>Inline Settings (Bootstrap)</em:name>
+    <em:version>3</em:version>
+    <em:bootstrap>true</em:bootstrap>
+    <em:optionsType>4</em:optionsType>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info/options.xul b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info/options.xul
new file mode 100644
index 000000000..095d3bcef
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_inlinesettings1_info/options.xul
@@ -0,0 +1,19 @@
+<?xml version="1.0" ?>
+<vbox xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <setting pref="extensions.inlinesettings1.bool" type="bool" title="Bool" checkboxlabel="Check box label"/>
+  <setting pref="extensions.inlinesettings1.boolint" type="boolint" on="1" off="2" title="BoolInt"/>
+  <setting pref="extensions.inlinesettings1.integer" type="integer" title="Integer"/>
+  <setting pref="extensions.inlinesettings1.string" type="string" title="String"/>
+  <setting type="control" title="Menulist">
+    <menulist sizetopopup="always" oncommand="window._testValue = this.value;">
+      <menupopup>
+        <menuitem label="Alpha" value="1" />
+        <menuitem label="Bravo" value="2" />
+        <menuitem label="Charlie" value="3" />
+      </menupopup>
+    </menulist>
+  </setting>
+  <setting pref="extensions.inlinesettings1.color" type="color" title="Color"/>
+  <setting pref="extensions.inlinesettings1.file" type="file" title="File"/>
+  <setting pref="extensions.inlinesettings1.directory" type="directory" title="Directory"/>
+</vbox>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_1.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_1.xpi
new file mode 100644
index 000000000..d6df8f9d0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_1/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_1/install.rdf
new file mode 100644
index 000000000..b11b6d7e4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_1/install.rdf
@@ -0,0 +1,32 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>install1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+    <em:updateURL>http://example.com/browser/toolkit/mozapps/extensions/test/browser/browser_install.rdf</em:updateURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Install Tests</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_2.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_2.xpi
new file mode 100644
index 000000000..5468e6cb0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_2/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_2/install.rdf
new file mode 100644
index 000000000..81898b24d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_install1_2/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>install1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Install Tests</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_installssl.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_installssl.xpi
new file mode 100644
index 000000000..999535a97
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_installssl.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_installssl/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_installssl/install.rdf
new file mode 100644
index 000000000..7ce6cd09a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_installssl/install.rdf
@@ -0,0 +1,30 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>sslinstall@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>SSL Install Tests</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_searching.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_searching.xpi
new file mode 100644
index 000000000..efef815aa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_searching.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_searching/bootstrap.js b/toolkit/mozapps/webextensions/test/browser/addons/browser_searching/bootstrap.js
new file mode 100644
index 000000000..7b86e419a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_searching/bootstrap.js
@@ -0,0 +1,9 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function install(data, reason) {}
+function startup(data, reason) {}
+function shutdown(data, reason) {}
+function uninstall(data, reason) {}
+
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_searching/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_searching/install.rdf
new file mode 100644
index 000000000..02cc935ea
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_searching/install.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>remote1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:type>2</em:type>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>PASS - b - installed</em:name>
+    <em:description>Test sumary - SEARCH SEARCH</em:description>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1.xpi
new file mode 100644
index 000000000..956812aaa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/bootstrap.js b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/bootstrap.js
new file mode 100644
index 000000000..ff5b80ae8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/bootstrap.js
@@ -0,0 +1,12 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function install(data, reason) {}
+function startup(data, reason) {
+  Components.utils.import("resource://gre/modules/Services.jsm");
+  Services.ppmm.loadProcessScript(
+    "resource://my-addon/frame-script.js", false);
+}
+function shutdown(data, reason) {}
+function uninstall(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/chrome.manifest b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/chrome.manifest
new file mode 100644
index 000000000..f1a7ccee1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/chrome.manifest
@@ -0,0 +1 @@
+resource my-addon .
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/frame-script.js b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/frame-script.js
new file mode 100644
index 000000000..f4674b840
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/frame-script.js
@@ -0,0 +1,6 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+Services.cpmm.sendAsyncMessage("my-addon-1");
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/install.rdf
new file mode 100644
index 000000000..c52307b4a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_1/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>update1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Update Tests</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2.xpi
new file mode 100644
index 000000000..7ef3db940
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/bootstrap.js b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/bootstrap.js
new file mode 100644
index 000000000..ff5b80ae8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/bootstrap.js
@@ -0,0 +1,12 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function install(data, reason) {}
+function startup(data, reason) {
+  Components.utils.import("resource://gre/modules/Services.jsm");
+  Services.ppmm.loadProcessScript(
+    "resource://my-addon/frame-script.js", false);
+}
+function shutdown(data, reason) {}
+function uninstall(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/chrome.manifest b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/chrome.manifest
new file mode 100644
index 000000000..f1a7ccee1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/chrome.manifest
@@ -0,0 +1 @@
+resource my-addon .
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/frame-script.js b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/frame-script.js
new file mode 100644
index 000000000..e35092a55
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/frame-script.js
@@ -0,0 +1,6 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+Services.cpmm.sendAsyncMessage("my-addon-2");
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/install.rdf
new file mode 100644
index 000000000..2fae190b4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_update1_2/install.rdf
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>update1@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Update Tests</em:name>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_webapi_install.xpi b/toolkit/mozapps/webextensions/test/browser/addons/browser_webapi_install.xpi
new file mode 100644
index 000000000..4fa7b8bfa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_webapi_install.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_webapi_install/bootstrap.js b/toolkit/mozapps/webextensions/test/browser/addons/browser_webapi_install/bootstrap.js
new file mode 100644
index 000000000..bd11077c2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_webapi_install/bootstrap.js
@@ -0,0 +1,9 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+function startup(data, reason) {
+  Services.prefs.setIntPref("webapitest.active_version", 1);
+}
+
+function shutdown(data, reason) {
+  Services.prefs.setIntPref("webapitest.active_version", 0);
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/browser_webapi_install/install.rdf b/toolkit/mozapps/webextensions/test/browser/addons/browser_webapi_install/install.rdf
new file mode 100644
index 000000000..2cae124e1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/browser_webapi_install/install.rdf
@@ -0,0 +1,29 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>webapi_install@tests.mozilla.org</em:id>
+    <em:version>1.1</em:version>
+    <em:name>AddonManger web API test</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>0.3</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>0</em:minVersion>
+        <em:maxVersion>*</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/options_signed.xpi b/toolkit/mozapps/webextensions/test/browser/addons/options_signed.xpi
new file mode 100644
index 000000000..a063fd1c4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/options_signed.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/options_signed/manifest.json b/toolkit/mozapps/webextensions/test/browser/addons/options_signed/manifest.json
new file mode 100644
index 000000000..e808cd5ab
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/options_signed/manifest.json
@@ -0,0 +1,11 @@
+{
+  "manifest_version": 2,
+
+  "name": "Test options_ui",
+  "description": "Test add-ons manager handling options_ui with no id in manifest.json",
+  "version": "1.2",
+
+  "options_ui": {
+    "page": "options.html"
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/addons/options_signed/options.html b/toolkit/mozapps/webextensions/test/browser/addons/options_signed/options.html
new file mode 100644
index 000000000..ea804601b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/addons/options_signed/options.html
@@ -0,0 +1,9 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+  </head>
+  <body>
+    <div id="options-test-panel" />
+  </body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/browser/blockNoPlugins.xml b/toolkit/mozapps/webextensions/test/browser/blockNoPlugins.xml
new file mode 100644
index 000000000..e4e191b37
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/blockNoPlugins.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0"?>
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist" lastupdate="1336406310001">
+  <emItems>
+  </emItems>
+  <pluginItems>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/browser/blockPluginHard.xml b/toolkit/mozapps/webextensions/test/browser/blockPluginHard.xml
new file mode 100644
index 000000000..24eb5bc6f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/blockPluginHard.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0"?>
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist" lastupdate="1336406310000">
+  <emItems>
+  </emItems>
+  <pluginItems>
+    <pluginItem blockID="p9999">
+      <match name="filename" exp="libnptest\.so|nptest\.dll|Test\.plugin" />
+      <versionRange severity="2"></versionRange>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/browser/browser-common.ini b/toolkit/mozapps/webextensions/test/browser/browser-common.ini
new file mode 100644
index 000000000..eda266e2f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser-common.ini
@@ -0,0 +1,67 @@
+[browser_about.js]
+skip-if = os == 'linux' || os == 'win' # bug 632290
+[browser_bug523784.js]
+[browser_bug557943.js]
+[browser_bug562797.js]
+[browser_bug562854.js]
+[browser_bug562890.js]
+skip-if = os == 'win' && !debug # Disabled on Windows opt/PGO builds due to intermittent failures (bug 1135866)
+[browser_bug562899.js]
+skip-if = buildapp == 'mulet'
+[browser_bug562992.js]
+[browser_bug567127.js]
+[browser_bug567137.js]
+[browser_bug570760.js]
+[browser_bug572561.js]
+[browser_bug573062.js]
+[browser_bug577990.js]
+[browser_bug580298.js]
+[browser_bug581076.js]
+[browser_bug586574.js]
+[browser_bug587970.js]
+[browser_bug591465.js]
+[browser_bug591663.js]
+[browser_bug593535.js]
+skip-if = true # Bug 1093190 - Disabled due to leak
+[browser_bug596336.js]
+[browser_bug608316.js]
+[browser_bug610764.js]
+[browser_bug618502.js]
+[browser_bug679604.js]
+[browser_bug714593.js]
+[browser_bug590347.js]
+[browser_details.js]
+[browser_discovery.js]
+[browser_dragdrop.js]
+skip-if = buildapp == 'mulet'
+[browser_experiments.js]
+[browser_list.js]
+[browser_metadataTimeout.js]
+[browser_searching.js]
+[browser_sorting.js]
+[browser_sorting_plugins.js]
+[browser_plugin_enabled_state_locked.js]
+[browser_uninstalling.js]
+[browser_install.js]
+[browser_recentupdates.js]
+[browser_manualupdates.js]
+[browser_globalwarnings.js]
+[browser_eula.js]
+skip-if = buildapp == 'mulet'
+[browser_updateid.js]
+[browser_purchase.js]
+[browser_openDialog.js]
+tags = openwindow
+skip-if = os == 'win' # Disabled on Windows due to intermittent failures (bug 1135866)
+[browser_types.js]
+[browser_inlinesettings.js]
+[browser_inlinesettings_browser.js]
+[browser_inlinesettings_custom.js]
+[browser_inlinesettings_info.js]
+[browser_tabsettings.js]
+[browser_pluginprefs.js]
+skip-if = buildapp == 'mulet'
+[browser_CTP_plugins.js]
+skip-if = buildapp == 'mulet'
+[browser_webext_options.js]
+tags = webextensions
diff --git a/toolkit/mozapps/webextensions/test/browser/browser-window.ini b/toolkit/mozapps/webextensions/test/browser/browser-window.ini
new file mode 100644
index 000000000..fcda90fc6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser-window.ini
@@ -0,0 +1,52 @@
+[DEFAULT]
+install-to-subdir = test-window
+support-files =
+  addons/*
+  addon_about.xul
+  addon_prefs.xul
+  cancelCompatCheck.sjs
+  discovery.html
+  discovery_frame.html
+  discovery_install.html
+  head.js
+  signed_hotfix.rdf
+  signed_hotfix.xpi
+  unsigned_hotfix.rdf
+  unsigned_hotfix.xpi
+  more_options.xul
+  options.xul
+  plugin_test.html
+  redirect.sjs
+  releaseNotes.xhtml
+  blockNoPlugins.xml
+  blockPluginHard.xml
+  browser_bug557956.rdf
+  browser_bug557956_8_2.xpi
+  browser_bug557956_9_2.xpi
+  browser_bug557956.xml
+  browser_bug591465.xml
+  browser_bug593535.xml
+  browser_searching.xml
+  browser_searching_empty.xml
+  browser_updatessl.rdf
+  browser_updatessl.rdf^headers^
+  browser_install.rdf
+  browser_install.rdf^headers^
+  browser_install.xml
+  browser_install1_3.xpi
+  browser_eula.xml
+  browser_purchase.xml
+  webapi_addon_listener.html
+  webapi_checkavailable.html
+  webapi_checkchromeframe.xul
+  webapi_checkframed.html
+  webapi_checknavigatedwindow.html
+  !/toolkit/mozapps/extensions/test/xpinstall/corrupt.xpi
+  !/toolkit/mozapps/extensions/test/xpinstall/incompatible.xpi
+  !/toolkit/mozapps/extensions/test/xpinstall/installtrigger.html
+  !/toolkit/mozapps/extensions/test/xpinstall/restartless.xpi
+  !/toolkit/mozapps/extensions/test/xpinstall/theme.xpi
+  !/toolkit/mozapps/extensions/test/xpinstall/unsigned.xpi
+  !/toolkit/mozapps/extensions/test/xpinstall/amosigned.xpi
+
+[include:browser-common.ini]
diff --git a/toolkit/mozapps/webextensions/test/browser/browser.ini b/toolkit/mozapps/webextensions/test/browser/browser.ini
new file mode 100644
index 000000000..a23841d33
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser.ini
@@ -0,0 +1,75 @@
+[DEFAULT]
+tags = addons
+support-files =
+  addons/*
+  addon_about.xul
+  addon_prefs.xul
+  cancelCompatCheck.sjs
+  discovery.html
+  discovery_frame.html
+  discovery_install.html
+  head.js
+  signed_hotfix.rdf
+  signed_hotfix.xpi
+  unsigned_hotfix.rdf
+  unsigned_hotfix.xpi
+  more_options.xul
+  options.xul
+  plugin_test.html
+  redirect.sjs
+  releaseNotes.xhtml
+  blockNoPlugins.xml
+  blockPluginHard.xml
+  browser_bug557956.rdf
+  browser_bug557956_8_2.xpi
+  browser_bug557956_9_2.xpi
+  browser_bug557956.xml
+  browser_bug591465.xml
+  browser_bug593535.xml
+  browser_searching.xml
+  browser_searching_empty.xml
+  browser_updatessl.rdf
+  browser_updatessl.rdf^headers^
+  browser_install.rdf
+  browser_install.rdf^headers^
+  browser_install.xml
+  browser_install1_3.xpi
+  browser_eula.xml
+  browser_purchase.xml
+  webapi_addon_listener.html
+  webapi_checkavailable.html
+  webapi_checkchromeframe.xul
+  webapi_checkframed.html
+  webapi_checknavigatedwindow.html
+  !/toolkit/mozapps/extensions/test/xpinstall/corrupt.xpi
+  !/toolkit/mozapps/extensions/test/xpinstall/incompatible.xpi
+  !/toolkit/mozapps/extensions/test/xpinstall/installtrigger.html
+  !/toolkit/mozapps/extensions/test/xpinstall/restartless.xpi
+  !/toolkit/mozapps/extensions/test/xpinstall/theme.xpi
+  !/toolkit/mozapps/extensions/test/xpinstall/unsigned.xpi
+  !/toolkit/mozapps/extensions/test/xpinstall/amosigned.xpi
+
+[browser_addonrepository_performance.js]
+[browser_bug557956.js]
+[browser_bug616841.js]
+[browser_cancelCompatCheck.js]
+[browser_checkAddonCompatibility.js]
+[browser_gmpProvider.js]
+[browser_hotfix.js]
+# Verifies the old style of signing hotfixes
+skip-if = require_signing
+[browser_installssl.js]
+[browser_newaddon.js]
+[browser_updatessl.js]
+[browser_system_addons_are_e10s.js]
+[browser_task_next_test.js]
+[browser_discovery_install.js]
+[browser_update.js]
+[browser_webapi.js]
+[browser_webapi_access.js]
+[browser_webapi_addon_listener.js]
+[browser_webapi_enable.js]
+[browser_webapi_install.js]
+[browser_webapi_uninstall.js]
+
+[include:browser-common.ini]
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_CTP_plugins.js b/toolkit/mozapps/webextensions/test/browser/browser_CTP_plugins.js
new file mode 100644
index 000000000..dd2992f81
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_CTP_plugins.js
@@ -0,0 +1,172 @@
+const gHttpTestRoot = "http://127.0.0.1:8888/" + RELATIVE_DIR + "/";
+
+function updateBlocklist(aCallback) {
+  var blocklistNotifier = Cc["@mozilla.org/extensions/blocklist;1"]
+                          .getService(Ci.nsITimerCallback);
+  var observer = function() {
+    Services.obs.removeObserver(observer, "blocklist-updated");
+    SimpleTest.executeSoon(aCallback);
+  };
+  Services.obs.addObserver(observer, "blocklist-updated", false);
+  blocklistNotifier.notify(null);
+}
+
+var _originalBlocklistURL = null;
+function setAndUpdateBlocklist(aURL, aCallback) {
+  if (!_originalBlocklistURL) {
+    _originalBlocklistURL = Services.prefs.getCharPref("extensions.blocklist.url");
+  }
+  Services.prefs.setCharPref("extensions.blocklist.url", aURL);
+  updateBlocklist(aCallback);
+}
+
+function resetBlocklist(aCallback) {
+  Services.prefs.setCharPref("extensions.blocklist.url", _originalBlocklistURL);
+}
+
+add_task(function*() {
+  SpecialPowers.pushPrefEnv({"set": [
+    ["plugins.click_to_play", true],
+    ["extensions.blocklist.suppressUI", true]
+  ]});
+  registerCleanupFunction(function*() {
+    let pluginTag = getTestPluginTag();
+    pluginTag.enabledState = Ci.nsIPluginTag.STATE_ENABLED;
+    yield new Promise(resolve => {
+      setAndUpdateBlocklist(gHttpTestRoot + "blockNoPlugins.xml", resolve);
+    });
+    resetBlocklist();
+  });
+
+  let pluginTag = getTestPluginTag();
+  pluginTag.enabledState = Ci.nsIPluginTag.STATE_CLICKTOPLAY;
+  let managerWindow = yield new Promise(resolve => open_manager("addons://list/plugin", resolve));
+
+  let plugins = yield new Promise(resolve => AddonManager.getAddonsByTypes(["plugin"], resolve));
+
+  let testPluginId;
+  for (let plugin of plugins) {
+    if (plugin.name == "Test Plug-in") {
+      testPluginId = plugin.id;
+      break;
+    }
+  }
+  ok(testPluginId, "part2: Test Plug-in should exist");
+
+  let testPlugin = yield new Promise(resolve => AddonManager.getAddonByID(testPluginId, resolve));
+
+  let pluginEl = get_addon_element(managerWindow, testPluginId);
+  pluginEl.parentNode.ensureElementIsVisible(pluginEl);
+  let enableButton = managerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "enable-btn");
+  is_element_hidden(enableButton, "part3: enable button should not be visible");
+  let disableButton = managerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "enable-btn");
+  is_element_hidden(disableButton, "part3: disable button should not be visible");
+  let menu = managerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "state-menulist");
+  is_element_visible(menu, "part3: state menu should be visible");
+  let askToActivateItem = managerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "ask-to-activate-menuitem");
+  is(menu.selectedItem, askToActivateItem, "part3: state menu should have 'Ask To Activate' selected");
+
+  let pluginTab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, gHttpTestRoot + "plugin_test.html");
+  let pluginBrowser = pluginTab.linkedBrowser;
+
+  let condition = () => PopupNotifications.getNotification("click-to-play-plugins", pluginBrowser);
+  yield BrowserTestUtils.waitForCondition(condition, "part4: should have a click-to-play notification");
+
+  yield BrowserTestUtils.removeTab(pluginTab);
+
+  let alwaysActivateItem = managerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "always-activate-menuitem");
+  menu.selectedItem = alwaysActivateItem;
+  alwaysActivateItem.doCommand();
+
+  pluginTab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, gHttpTestRoot + "plugin_test.html");
+
+  yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let testPlugin = content.document.getElementById("test");
+    ok(testPlugin, "part5: should have a plugin element in the page");
+    let objLoadingContent = testPlugin.QueryInterface(Ci.nsIObjectLoadingContent);
+    let condition = () => objLoadingContent.activated;
+    yield ContentTaskUtils.waitForCondition(condition, "part5: waited too long for plugin to activate");
+    ok(objLoadingContent.activated, "part6: plugin should be activated");
+  });
+
+  yield BrowserTestUtils.removeTab(pluginTab);
+
+  let neverActivateItem = managerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "never-activate-menuitem");
+  menu.selectedItem = neverActivateItem;
+  neverActivateItem.doCommand();
+
+  pluginTab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, gHttpTestRoot + "plugin_test.html");
+  pluginBrowser = pluginTab.linkedBrowser;
+
+  yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let testPlugin = content.document.getElementById("test");
+    ok(testPlugin, "part7: should have a plugin element in the page");
+    let objLoadingContent = testPlugin.QueryInterface(Ci.nsIObjectLoadingContent);
+    ok(!objLoadingContent.activated, "part7: plugin should not be activated");
+  });
+
+  yield BrowserTestUtils.removeTab(pluginTab);
+
+  let details = managerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "details-btn");
+  is_element_visible(details, "part7: details link should be visible");
+  EventUtils.synthesizeMouseAtCenter(details, {}, managerWindow);
+  yield BrowserTestUtils.waitForEvent(managerWindow.document, "ViewChanged");
+
+  is_element_hidden(enableButton, "part8: detail enable button should be hidden");
+  is_element_hidden(disableButton, "part8: detail disable button should be hidden");
+  is_element_visible(menu, "part8: detail state menu should be visible");
+  is(menu.selectedItem, neverActivateItem, "part8: state menu should have 'Never Activate' selected");
+
+  menu.selectedItem = alwaysActivateItem;
+  alwaysActivateItem.doCommand();
+
+  pluginTab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, gHttpTestRoot + "plugin_test.html");
+  pluginBrowser = pluginTab.linkedBrowser;
+
+  yield ContentTask.spawn(pluginTab.linkedBrowser, null, function*() {
+    let testPlugin = content.document.getElementById("test");
+    ok(testPlugin, "part9: should have a plugin element in the page");
+    let objLoadingContent = testPlugin.QueryInterface(Ci.nsIObjectLoadingContent);
+    let condition = () => objLoadingContent.activated;
+    yield ContentTaskUtils.waitForCondition(condition, "part9: waited too long for plugin to activate");
+    ok(objLoadingContent.activated, "part10: plugin should be activated");
+  });
+
+  yield BrowserTestUtils.removeTab(pluginTab);
+
+  menu.selectedItem = askToActivateItem;
+  askToActivateItem.doCommand();
+
+  pluginTab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, gHttpTestRoot + "plugin_test.html");
+  pluginBrowser = pluginTab.linkedBrowser;
+
+  condition = () => PopupNotifications.getNotification("click-to-play-plugins", pluginBrowser);
+  yield BrowserTestUtils.waitForCondition(condition, "part11: should have a click-to-play notification");
+
+  yield BrowserTestUtils.removeTab(pluginTab);
+
+  // causes appDisabled to be set
+  managerWindow = yield new Promise(resolve => {
+    setAndUpdateBlocklist(gHttpTestRoot + "blockPluginHard.xml",
+      () => {
+        close_manager(managerWindow, function() {
+          open_manager("addons://list/plugin", resolve);
+        });
+      }
+    );
+  });
+
+  pluginEl = get_addon_element(managerWindow, testPluginId);
+  pluginEl.parentNode.ensureElementIsVisible(pluginEl);
+  menu = managerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "state-menulist");
+  is(menu.disabled, true, "part12: state menu should be disabled");
+
+  details = managerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "details-btn");
+  EventUtils.synthesizeMouseAtCenter(details, {}, managerWindow);
+  yield BrowserTestUtils.waitForEvent(managerWindow.document, "ViewChanged");
+
+  menu = managerWindow.document.getElementById("detail-state-menulist");
+  is(menu.disabled, true, "part13: detail state menu should be disabled");
+
+  managerWindow.close();
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_about.js b/toolkit/mozapps/webextensions/test/browser/browser_about.js
new file mode 100644
index 000000000..f781cf146
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_about.js
@@ -0,0 +1,84 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/**
+ * Tests the default and custom "about" dialogs of add-ons.
+ *
+ * Test for bug 610661 <https://bugzilla.mozilla.org/show_bug.cgi?id=610661>:
+ * Addon object not passed to custom about dialogs.
+ */
+
+var gManagerWindow;
+
+const URI_ABOUT_DEFAULT = "chrome://mozapps/content/extensions/about.xul";
+const URI_ABOUT_CUSTOM = CHROMEROOT + "addon_about.xul";
+
+function test() {
+  requestLongerTimeout(2);
+
+  waitForExplicitFinish();
+
+  var gProvider = new MockProvider();
+  gProvider.createAddons([{
+    id: "test1@tests.mozilla.org",
+    name: "Test add-on 1",
+    description: "foo"
+  },
+  {
+    id: "test2@tests.mozilla.org",
+    name: "Test add-on 2",
+    description: "bar",
+    aboutURL: URI_ABOUT_CUSTOM
+  }]);
+
+  open_manager("addons://list/extension", function(aManager) {
+    gManagerWindow = aManager;
+
+    test_about_window("Test add-on 1", URI_ABOUT_DEFAULT, function() {
+      test_about_window("Test add-on 2", URI_ABOUT_CUSTOM, function() {
+        close_manager(gManagerWindow, finish);
+      });
+    });
+  });
+}
+
+function test_about_window(aAddonItemName, aExpectedAboutUri, aCallback) {
+  var addonList = gManagerWindow.document.getElementById("addon-list");
+  for (var addonItem of addonList.childNodes) {
+    if (addonItem.hasAttribute("name") &&
+        addonItem.getAttribute("name") === aAddonItemName)
+      break;
+  }
+
+  info("Waiting for about dialog");
+  Services.ww.registerNotification(function TEST_ww_observer(aSubject, aTopic,
+                                                             aData) {
+    if (aTopic == "domwindowclosed") {
+      Services.ww.unregisterNotification(TEST_ww_observer);
+
+      info("About dialog closed, waiting for focus on browser window");
+      waitForFocus(() => executeSoon(aCallback));
+    } else if (aTopic == "domwindowopened") {
+      info("About dialog opened, waiting for focus");
+
+      let win = aSubject.QueryInterface(Ci.nsIDOMEventTarget);
+      waitForFocus(function() {
+        info("Saw about dialog");
+
+        is(win.location,
+           aExpectedAboutUri,
+           "The correct add-on about window should have opened");
+
+        is(win.arguments && win.arguments[0] && win.arguments[0].name,
+           aAddonItemName,
+           "window.arguments[0] should refer to the add-on object");
+
+        executeSoon(() => win.close());
+      }, win);
+    }
+  });
+
+  gManagerWindow.gViewController.doCommand("cmd_showItemAbout",
+                                           addonItem.mAddon);
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_addonrepository_performance.js b/toolkit/mozapps/webextensions/test/browser/browser_addonrepository_performance.js
new file mode 100644
index 000000000..879d7331e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_addonrepository_performance.js
@@ -0,0 +1,99 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that the metadata request includes startup time measurements
+
+var tmp = {};
+Components.utils.import("resource://gre/modules/addons/AddonRepository.jsm", tmp);
+var AddonRepository = tmp.AddonRepository;
+
+var gTelemetry = Cc["@mozilla.org/base/telemetry;1"].getService(Ci.nsITelemetry);
+var gManagerWindow;
+var gProvider;
+
+function parseParams(aQuery) {
+  let params = {};
+
+  for (let param of aQuery.split("&")) {
+    let [key, value] = param.split("=");
+    params[key] = value;
+  }
+
+  return params;
+}
+
+function test() {
+  waitForExplicitFinish();
+
+  var gSeenRequest = false;
+
+  gProvider = new MockProvider();
+  gProvider.createAddons([{
+    id: "test1@tests.mozilla.org",
+    name: "Test add-on"
+  }]);
+
+  function observe(aSubject, aTopic, aData) {
+    aSubject.QueryInterface(Ci.nsIChannel);
+    let url = aSubject.URI.QueryInterface(Ci.nsIURL);
+    if (url.filePath != "/extensions-dummy/metadata") {
+      return;
+    }
+    info(url.query);
+
+    // Check if we encountered telemetry errors and turn the tests for which
+    // we don't have valid data into known failures.
+    let snapshot = gTelemetry.getHistogramById("STARTUP_MEASUREMENT_ERRORS")
+                             .snapshot();
+
+    let tProcessValid = (snapshot.counts[0] == 0);
+    let tMainValid = tProcessValid && (snapshot.counts[2] == 0);
+    let tFirstPaintValid = tProcessValid && (snapshot.counts[5] == 0);
+    let tSessionRestoredValid = tProcessValid && (snapshot.counts[6] == 0);
+
+    let params = parseParams(url.query);
+
+    is(params.appOS, Services.appinfo.OS, "OS should be correct");
+    is(params.appVersion, Services.appinfo.version, "Version should be correct");
+
+    if (tMainValid) {
+      ok(params.tMain >= 0, "Should be a sensible tMain");
+    } else {
+      todo(false, "An error occurred while recording the startup timestamps, skipping this test");
+    }
+
+    if (tFirstPaintValid) {
+      ok(params.tFirstPaint >= 0, "Should be a sensible tFirstPaint");
+    } else {
+      todo(false, "An error occurred while recording the startup timestamps, skipping this test");
+    }
+
+    if (tSessionRestoredValid) {
+      ok(params.tSessionRestored >= 0, "Should be a sensible tSessionRestored");
+    } else {
+      todo(false, "An error occurred while recording the startup timestamps, skipping this test");
+    }
+
+    gSeenRequest = true;
+  }
+
+  const PREF = "extensions.getAddons.getWithPerformance.url";
+
+  // Watch HTTP requests
+  Services.obs.addObserver(observe, "http-on-modify-request", false);
+  Services.prefs.setCharPref(PREF,
+    "http://127.0.0.1:8888/extensions-dummy/metadata?appOS=%OS%&appVersion=%VERSION%&tMain=%TIME_MAIN%&tFirstPaint=%TIME_FIRST_PAINT%&tSessionRestored=%TIME_SESSION_RESTORED%");
+
+  registerCleanupFunction(function() {
+    Services.obs.removeObserver(observe, "http-on-modify-request");
+  });
+
+  AddonRepository._beginGetAddons(["test1@tests.mozilla.org"], {
+    searchFailed: function() {
+      ok(gSeenRequest, "Should have seen metadata request");
+      finish();
+    }
+  }, true);
+}
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug523784.js b/toolkit/mozapps/webextensions/test/browser/browser_bug523784.js
new file mode 100644
index 000000000..e61fafd6b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug523784.js
@@ -0,0 +1,120 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const URI_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+// This tests that the blocklist dialog still affects soft-blocked add-ons
+// if the user clicks the "Restart Later" button. It also ensures that the
+// "Cancel" button is correctly renamed (to "Restart Later").
+var args = {
+  restart: false,
+  list: [{
+    name: "Bug 523784 softblocked addon",
+    version: "1",
+    icon: "chrome://mozapps/skin/plugins/pluginGeneric.png",
+    disable: false,
+    blocked: false,
+    url: 'http://example.com/bug523784_1',
+  }],
+};
+
+function test() {
+  waitForExplicitFinish();
+
+  let windowObserver = function(aSubject, aTopic, aData) {
+    if (aTopic != "domwindowopened")
+      return;
+
+    Services.ww.unregisterNotification(windowObserver);
+
+    let win = aSubject.QueryInterface(Ci.nsIDOMWindow);
+    win.addEventListener("load", function() {
+      win.removeEventListener("load", arguments.callee, false);
+
+      executeSoon(() => bug523784_test1(win));
+    }, false);
+  };
+  Services.ww.registerNotification(windowObserver);
+
+  args.wrappedJSObject = args;
+  Services.ww.openWindow(null, URI_BLOCKLIST_DIALOG, "",
+                         "chrome,centerscreen,dialog,titlebar", args);
+}
+
+function bug523784_test1(win) {
+  let bundle = Services.strings.
+              createBundle("chrome://mozapps/locale/update/updates.properties");
+  let cancelButton = win.document.documentElement.getButton("cancel");
+  let moreInfoLink = win.document.getElementById("moreInfo");
+
+  is(cancelButton.getAttribute("label"),
+     bundle.GetStringFromName("restartLaterButton"),
+     "Text should be changed on Cancel button");
+  is(cancelButton.getAttribute("accesskey"),
+     bundle.GetStringFromName("restartLaterButton.accesskey"),
+     "Accesskey should also be changed on Cancel button");
+  is(moreInfoLink.getAttribute("href"),
+     'http://example.com/bug523784_1',
+     "More Info link should link to a detailed blocklist page.");
+  let windowObserver = function(aSubject, aTopic, aData) {
+    if (aTopic != "domwindowclosed")
+      return;
+
+    Services.ww.unregisterNotification(windowObserver);
+
+    ok(args.list[0].disable, "Should be blocking add-on");
+    ok(!args.restart, "Should not restart browser immediately");
+
+    executeSoon(bug523784_test2);
+  };
+  Services.ww.registerNotification(windowObserver);
+
+  cancelButton.doCommand();
+}
+
+function bug523784_test2(win) {
+  let windowObserver = function(aSubject, aTopic, aData) {
+    if (aTopic != "domwindowopened")
+      return;
+
+    Services.ww.unregisterNotification(windowObserver);
+    let win = aSubject.QueryInterface(Ci.nsIDOMWindow);
+    win.addEventListener("load", function() {
+      win.removeEventListener("load", arguments.callee, false);
+
+    executeSoon(function() {
+      let moreInfoLink = win.document.getElementById("moreInfo");
+      let cancelButton = win.document.documentElement.getButton("cancel");
+      is(moreInfoLink.getAttribute("href"),
+         Services.urlFormatter.formatURLPref("extensions.blocklist.detailsURL"),
+         "More Info link should link to the general blocklist page.");
+      cancelButton.doCommand();
+      executeSoon(finish);
+    })
+    }, false);
+  };
+  Services.ww.registerNotification(windowObserver);
+
+  // Add 2 more addons to the blocked list to check that the more info link
+  // points to the general blocked list page.
+  args.list.push({
+    name: "Bug 523784 softblocked addon 2",
+    version: "2",
+    icon: "chrome://mozapps/skin/plugins/pluginGeneric.png",
+    disable: false,
+    blocked: false,
+    url: 'http://example.com/bug523784_2'
+  });
+  args.list.push({
+    name: "Bug 523784 softblocked addon 3",
+    version: "4",
+    icon: "chrome://mozapps/skin/plugins/pluginGeneric.png",
+    disable: false,
+    blocked: false,
+    url: 'http://example.com/bug523784_3'
+  });
+
+  args.wrappedJSObject = args;
+  Services.ww.openWindow(null, URI_BLOCKLIST_DIALOG, "",
+                         "chrome,centerscreen,dialog,titlebar", args);
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug557943.js b/toolkit/mozapps/webextensions/test/browser/browser_bug557943.js
new file mode 100644
index 000000000..94a8b6f49
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug557943.js
@@ -0,0 +1,80 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 557943 - Searching for addons can result in wrong results
+
+var gManagerWindow;
+var gProvider;
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "Microsoft .NET Framework Assistant",
+    description: "",
+    version: "6.66"
+  }, {
+    id: "addon2@tests.mozilla.org",
+    name: "AwesomeNet Addon",
+    description: ""
+  }, {
+    id: "addon3@tests.mozilla.org",
+    name: "Dictionnaire MySpell en Francais (réforme 1990)",
+    description: ""
+  }]);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+
+function perform_search(aQuery, aCallback) {
+  waitForFocus(function() {
+    var searchBox = gManagerWindow.document.getElementById("header-search");
+    searchBox.value = aQuery;
+
+    EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+    EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+    wait_for_view_load(gManagerWindow, function() {
+      var list = gManagerWindow.document.getElementById("search-list");
+      var rows = list.getElementsByTagName("richlistitem");
+      aCallback(rows);
+    });
+  }, gManagerWindow);
+}
+
+
+add_test(function() {
+  perform_search(".net", function(aRows) {
+    is(aRows.length, 1, "Should only get one result");
+    is(aRows[0].mAddon.id, "addon1@tests.mozilla.org", "Should get expected addon as only result");
+    run_next_test();
+  });
+});
+
+add_test(function() {
+  perform_search("réf", function(aRows) {
+    is(aRows.length, 1, "Should only get one result");
+    is(aRows[0].mAddon.id, "addon3@tests.mozilla.org", "Should get expected addon as only result");
+    run_next_test();
+  });
+});
+
+add_test(function() {
+  perform_search("javascript:void()", function(aRows) {
+    is(aRows.length, 0, "Should not get any results");
+    run_next_test();
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug557956.js b/toolkit/mozapps/webextensions/test/browser/browser_bug557956.js
new file mode 100644
index 000000000..136e7cb74
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug557956.js
@@ -0,0 +1,524 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test the compatibility dialog that displays during startup when the browser
+// version changes.
+
+const URI_EXTENSION_UPDATE_DIALOG = "chrome://mozapps/content/extensions/update.xul";
+
+const PREF_GETADDONS_BYIDS            = "extensions.getAddons.get.url";
+const PREF_MIN_APP_COMPAT             = "extensions.minCompatibleAppVersion";
+const PREF_MIN_PLATFORM_COMPAT        = "extensions.minCompatiblePlatformVersion";
+
+Services.prefs.setBoolPref(PREF_STRICT_COMPAT, true);
+// avoid the 'leaked window property' check
+var scope = {};
+Components.utils.import("resource://gre/modules/TelemetrySession.jsm", scope);
+var TelemetrySession = scope.TelemetrySession;
+
+/**
+ * Test add-ons:
+ *
+ * Addon    minVersion   maxVersion   Notes
+ * addon1   0            *
+ * addon2   0            0
+ * addon3   0            0
+ * addon4   1            *
+ * addon5   0            0            Made compatible by update check
+ * addon6   0            0            Made compatible by update check
+ * addon7   0            0            Has a broken update available
+ * addon8   0            0            Has an update available
+ * addon9   0            0            Has an update available
+ */
+
+function test() {
+  requestLongerTimeout(2);
+  waitForExplicitFinish();
+
+  run_next_test();
+}
+
+function end_test() {
+  // Test generates a lot of available installs so just cancel them all
+  AddonManager.getAllInstalls(function(aInstalls) {
+    for (let install of aInstalls)
+      install.cancel();
+
+    Services.prefs.clearUserPref(PREF_MIN_APP_COMPAT);
+    Services.prefs.clearUserPref(PREF_MIN_PLATFORM_COMPAT);
+
+    finish();
+  });
+}
+
+function install_test_addons(aCallback) {
+  var installs = [];
+
+  // Use a blank update URL
+  Services.prefs.setCharPref(PREF_UPDATEURL, TESTROOT + "missing.rdf");
+
+  let names = ["browser_bug557956_1",
+               "browser_bug557956_2",
+               "browser_bug557956_3",
+               "browser_bug557956_4",
+               "browser_bug557956_5",
+               "browser_bug557956_6",
+               "browser_bug557956_7",
+               "browser_bug557956_8_1",
+               "browser_bug557956_9_1",
+               "browser_bug557956_10"];
+  for (let name of names) {
+    AddonManager.getInstallForURL(TESTROOT + "addons/" + name + ".xpi", function(aInstall) {
+      installs.push(aInstall);
+    }, "application/x-xpinstall");
+  }
+
+  var listener = {
+    installCount: 0,
+
+    onInstallEnded: function() {
+      this.installCount++;
+      if (this.installCount == installs.length) {
+        // Switch to the test update URL
+        Services.prefs.setCharPref(PREF_UPDATEURL, TESTROOT + "browser_bug557956.rdf");
+
+        executeSoon(aCallback);
+      }
+    }
+  };
+
+  for (let install of installs) {
+    install.addListener(listener);
+    install.install();
+  }
+}
+
+function uninstall_test_addons(aCallback) {
+  AddonManager.getAddonsByIDs(["bug557956-1@tests.mozilla.org",
+                               "bug557956-2@tests.mozilla.org",
+                               "bug557956-3@tests.mozilla.org",
+                               "bug557956-4@tests.mozilla.org",
+                               "bug557956-5@tests.mozilla.org",
+                               "bug557956-6@tests.mozilla.org",
+                               "bug557956-7@tests.mozilla.org",
+                               "bug557956-8@tests.mozilla.org",
+                               "bug557956-9@tests.mozilla.org",
+                               "bug557956-10@tests.mozilla.org"],
+                               function(aAddons) {
+    for (let addon of aAddons) {
+      if (addon)
+        addon.uninstall();
+    }
+    aCallback();
+  });
+}
+
+// Open the compatibility dialog, with the list of addon IDs
+// that were disabled by this "update"
+function open_compatibility_window(aDisabledAddons, aCallback) {
+  // This will reset the longer timeout multiplier to 2 which will give each
+  // test that calls open_compatibility_window a minimum of 60 seconds to
+  // complete.
+  requestLongerTimeout(2);
+
+  var variant = Cc["@mozilla.org/variant;1"].
+                createInstance(Ci.nsIWritableVariant);
+  variant.setFromVariant(aDisabledAddons);
+
+  // Cannot be modal as we want to interact with it, shouldn't cause problems
+  // with testing though.
+  var features = "chrome,centerscreen,dialog,titlebar";
+  var ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].
+           getService(Ci.nsIWindowWatcher);
+  var win = ww.openWindow(null, URI_EXTENSION_UPDATE_DIALOG, "", features, variant);
+
+  win.addEventListener("load", function() {
+    win.removeEventListener("load", arguments.callee, false);
+
+    info("Compatibility dialog opened");
+
+    function page_shown(aEvent) {
+      if (aEvent.target.pageid)
+        info("Page " + aEvent.target.pageid + " shown");
+    }
+
+    win.addEventListener("pageshow", page_shown, false);
+    win.addEventListener("unload", function() {
+      win.removeEventListener("unload", arguments.callee, false);
+      win.removeEventListener("pageshow", page_shown, false);
+      info("Compatibility dialog closed");
+    }, false);
+
+    aCallback(win);
+  }, false);
+}
+
+function wait_for_window_close(aWindow, aCallback) {
+  aWindow.addEventListener("unload", function() {
+    aWindow.removeEventListener("unload", arguments.callee, false);
+    aCallback();
+  }, false);
+}
+
+function wait_for_page(aWindow, aPageId, aCallback) {
+  var page = aWindow.document.getElementById(aPageId);
+  page.addEventListener("pageshow", function() {
+    page.removeEventListener("pageshow", arguments.callee, false);
+    executeSoon(function() {
+      aCallback(aWindow);
+    });
+  }, false);
+}
+
+function get_list_names(aList) {
+  var items = [];
+  for (let listItem of aList.childNodes)
+    items.push(listItem.label);
+  items.sort();
+  return items;
+}
+
+function check_telemetry({disabled, metaenabled, metadisabled, upgraded, failed, declined}) {
+  let ping = TelemetrySession.getPayload();
+  // info(JSON.stringify(ping));
+  let am = ping.simpleMeasurements.addonManager;
+  if (disabled !== undefined)
+    is(am.appUpdate_disabled, disabled, disabled + " add-ons disabled by version change");
+  if (metaenabled !== undefined)
+    is(am.appUpdate_metadata_enabled, metaenabled, metaenabled + " add-ons enabled by metadata");
+  if (metadisabled !== undefined)
+    is(am.appUpdate_metadata_disabled, metadisabled, metadisabled + " add-ons disabled by metadata");
+  if (upgraded !== undefined)
+    is(am.appUpdate_upgraded, upgraded, upgraded + " add-ons upgraded");
+  if (failed !== undefined)
+    is(am.appUpdate_upgradeFailed, failed, failed + " upgrades failed");
+  if (declined !== undefined)
+    is(am.appUpdate_upgradeDeclined, declined, declined + " upgrades declined");
+}
+
+add_test(function test_setup() {
+  let oldCanRecord = Services.telemetry.canRecordExtended;
+  Services.telemetry.canRecordExtended = true;
+  registerCleanupFunction(function () {
+    Services.telemetry.canRecordExtended = oldCanRecord;
+  });
+  run_next_test();
+});
+
+// Tests that the right add-ons show up in the mismatch dialog and updates can
+// be installed
+add_test(function basic_mismatch() {
+  install_test_addons(function() {
+    // These add-ons become disabled
+    var disabledAddonIds = [
+      "bug557956-3@tests.mozilla.org",
+      "bug557956-6@tests.mozilla.org",
+      "bug557956-7@tests.mozilla.org",
+      "bug557956-8@tests.mozilla.org",
+      "bug557956-9@tests.mozilla.org"
+    ];
+
+    AddonManager.getAddonsByIDs(["bug557956-5@tests.mozilla.org",
+                                 "bug557956-6@tests.mozilla.org"],
+                                 function([a5, a6]) {
+      // Check starting (pre-update) conditions
+      ok(!a5.isCompatible, "bug557956-5 should not be compatible");
+      ok(!a6.isCompatible, "bug557956-6 should not be compatible");
+
+      open_compatibility_window(disabledAddonIds, function(aWindow) {
+        var doc = aWindow.document;
+        wait_for_page(aWindow, "mismatch", function(aWindow) {
+          var items = get_list_names(doc.getElementById("mismatch.incompatible"));
+          // Check that compatibility updates from individual add-on update checks were applied.
+          is(items.length, 4, "Should have seen 4 still incompatible items");
+          is(items[0], "Addon3 1.0", "Should have seen addon3 still incompatible");
+          is(items[1], "Addon7 1.0", "Should have seen addon7 still incompatible");
+          is(items[2], "Addon8 1.0", "Should have seen addon8 still incompatible");
+          is(items[3], "Addon9 1.0", "Should have seen addon9 still incompatible");
+
+          // If it wasn't disabled by this run, we don't try to enable it
+          ok(!a5.isCompatible, "bug557956-5 should not be compatible");
+          ok(a6.isCompatible, "bug557956-6 should be compatible");
+
+          var button = doc.documentElement.getButton("next");
+          EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+
+          wait_for_page(aWindow, "found", function(aWindow) {
+            ok(doc.getElementById("xpinstallDisabledAlert").hidden,
+               "Install should be allowed");
+
+            var list = doc.getElementById("found.updates");
+            var items = get_list_names(list);
+            is(items.length, 3, "Should have seen 3 updates available");
+            is(items[0], "Addon7 2.0", "Should have seen update for addon7");
+            is(items[1], "Addon8 2.0", "Should have seen update for addon8");
+            is(items[2], "Addon9 2.0", "Should have seen update for addon9");
+
+            ok(!doc.documentElement.getButton("next").disabled,
+               "Next button should be enabled");
+
+            // Uncheck all
+            for (let listItem of list.childNodes)
+              EventUtils.synthesizeMouse(listItem, 2, 2, { }, aWindow);
+
+            ok(doc.documentElement.getButton("next").disabled,
+               "Next button should not be enabled");
+
+            // Check the ones we want to install
+            for (let listItem of list.childNodes) {
+              if (listItem.label != "Addon7 2.0")
+                EventUtils.synthesizeMouse(listItem, 2, 2, { }, aWindow);
+            }
+
+            var button = doc.documentElement.getButton("next");
+            EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+
+            wait_for_page(aWindow, "finished", function(aWindow) {
+              var button = doc.documentElement.getButton("finish");
+              ok(!button.hidden, "Finish button should not be hidden");
+              ok(!button.disabled, "Finish button should not be disabled");
+              EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+
+              wait_for_window_close(aWindow, function() {
+                AddonManager.getAddonsByIDs(["bug557956-8@tests.mozilla.org",
+                                             "bug557956-9@tests.mozilla.org"],
+                                             function([a8, a9]) {
+                  is(a8.version, "2.0", "bug557956-8 should have updated");
+                  is(a9.version, "2.0", "bug557956-9 should have updated");
+
+                  check_telemetry({disabled: 5, metaenabled: 1, metadisabled: 0,
+                                   upgraded: 2, failed: 0, declined: 1});
+
+                  uninstall_test_addons(run_next_test);
+                });
+              });
+            });
+          });
+        });
+      });
+    });
+  });
+});
+
+// Tests that the install failures show the install failed page and disabling
+// xpinstall shows the right UI.
+add_test(function failure_page() {
+  install_test_addons(function() {
+    // These add-ons become disabled
+    var disabledAddonIds = [
+      "bug557956-3@tests.mozilla.org",
+      "bug557956-6@tests.mozilla.org",
+      "bug557956-7@tests.mozilla.org",
+      "bug557956-8@tests.mozilla.org",
+      "bug557956-9@tests.mozilla.org"
+    ];
+
+    Services.prefs.setBoolPref("xpinstall.enabled", false);
+
+    open_compatibility_window(disabledAddonIds, function(aWindow) {
+      var doc = aWindow.document;
+      wait_for_page(aWindow, "mismatch", function(aWindow) {
+        var items = get_list_names(doc.getElementById("mismatch.incompatible"));
+        is(items.length, 4, "Should have seen 4 still incompatible items");
+        is(items[0], "Addon3 1.0", "Should have seen addon3 still incompatible");
+        is(items[1], "Addon7 1.0", "Should have seen addon7 still incompatible");
+        is(items[2], "Addon8 1.0", "Should have seen addon8 still incompatible");
+        is(items[3], "Addon9 1.0", "Should have seen addon9 still incompatible");
+
+        // Check that compatibility updates were applied.
+        AddonManager.getAddonsByIDs(["bug557956-5@tests.mozilla.org",
+                                     "bug557956-6@tests.mozilla.org"],
+                                     function([a5, a6]) {
+          ok(!a5.isCompatible, "bug557956-5 should not be compatible");
+          ok(a6.isCompatible, "bug557956-6 should be compatible");
+
+          var button = doc.documentElement.getButton("next");
+          EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+
+          wait_for_page(aWindow, "found", function(aWindow) {
+            ok(!doc.getElementById("xpinstallDisabledAlert").hidden,
+               "Install should not be allowed");
+
+            ok(doc.documentElement.getButton("next").disabled,
+               "Next button should be disabled");
+
+            var checkbox = doc.getElementById("enableXPInstall");
+            EventUtils.synthesizeMouse(checkbox, 2, 2, { }, aWindow);
+
+            ok(!doc.documentElement.getButton("next").disabled,
+               "Next button should be enabled");
+
+            var list = doc.getElementById("found.updates");
+            var items = get_list_names(list);
+            is(items.length, 3, "Should have seen 3 updates available");
+            is(items[0], "Addon7 2.0", "Should have seen update for addon7");
+            is(items[1], "Addon8 2.0", "Should have seen update for addon8");
+            is(items[2], "Addon9 2.0", "Should have seen update for addon9");
+
+            // Unheck the ones we don't want to install
+            for (let listItem of list.childNodes) {
+              if (listItem.label != "Addon7 2.0")
+                EventUtils.synthesizeMouse(listItem, 2, 2, { }, aWindow);
+            }
+
+            var button = doc.documentElement.getButton("next");
+            EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+
+            wait_for_page(aWindow, "installerrors", function(aWindow) {
+              var button = doc.documentElement.getButton("finish");
+              ok(!button.hidden, "Finish button should not be hidden");
+              ok(!button.disabled, "Finish button should not be disabled");
+
+              wait_for_window_close(aWindow, function() {
+                uninstall_test_addons(run_next_test);
+              });
+
+              check_telemetry({disabled: 5, metaenabled: 1, metadisabled: 0,
+                               upgraded: 0, failed: 1, declined: 2});
+
+              EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+            });
+          });
+        });
+      });
+    });
+  });
+});
+
+// Tests that no add-ons show up in the mismatch dialog when they are all disabled
+add_test(function all_disabled() {
+  install_test_addons(function() {
+    AddonManager.getAddonsByIDs(["bug557956-1@tests.mozilla.org",
+                                 "bug557956-2@tests.mozilla.org",
+                                 "bug557956-3@tests.mozilla.org",
+                                 "bug557956-4@tests.mozilla.org",
+                                 "bug557956-5@tests.mozilla.org",
+                                 "bug557956-6@tests.mozilla.org",
+                                 "bug557956-7@tests.mozilla.org",
+                                 "bug557956-8@tests.mozilla.org",
+                                 "bug557956-9@tests.mozilla.org",
+                                 "bug557956-10@tests.mozilla.org"],
+                                 function(aAddons) {
+      for (let addon of aAddons)
+        addon.userDisabled = true;
+
+      open_compatibility_window([], function(aWindow) {
+        // Should close immediately on its own
+        wait_for_window_close(aWindow, function() {
+          uninstall_test_addons(run_next_test);
+        });
+      });
+    });
+  });
+});
+
+// Tests that the right UI shows for when no updates are available
+add_test(function no_updates() {
+  install_test_addons(function() {
+    AddonManager.getAddonsByIDs(["bug557956-7@tests.mozilla.org",
+                                 "bug557956-8@tests.mozilla.org",
+                                 "bug557956-9@tests.mozilla.org",
+                                 "bug557956-10@tests.mozilla.org"],
+                                 function(aAddons) {
+      for (let addon of aAddons)
+        addon.uninstall();
+
+      // These add-ons were disabled by the upgrade
+      var inactiveAddonIds = [
+        "bug557956-3@tests.mozilla.org",
+        "bug557956-5@tests.mozilla.org",
+        "bug557956-6@tests.mozilla.org"
+      ];
+
+      open_compatibility_window(inactiveAddonIds, function(aWindow) {
+        var doc = aWindow.document;
+        wait_for_page(aWindow, "mismatch", function(aWindow) {
+          var items = get_list_names(doc.getElementById("mismatch.incompatible"));
+          is(items.length, 1, "Should have seen 1 still incompatible items");
+          is(items[0], "Addon3 1.0", "Should have seen addon3 still incompatible");
+
+          var button = doc.documentElement.getButton("next");
+          EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+
+          wait_for_page(aWindow, "noupdates", function(aWindow) {
+            var button = doc.documentElement.getButton("finish");
+            ok(!button.hidden, "Finish button should not be hidden");
+            ok(!button.disabled, "Finish button should not be disabled");
+
+            wait_for_window_close(aWindow, function() {
+              uninstall_test_addons(run_next_test);
+            });
+
+            EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+          });
+        });
+      });
+    });
+  });
+});
+
+// Tests that compatibility overrides are retrieved and affect addon
+// compatibility.
+add_test(function overrides_retrieved() {
+  Services.prefs.setBoolPref(PREF_STRICT_COMPAT, false);
+  Services.prefs.setCharPref(PREF_MIN_APP_COMPAT, "0");
+  Services.prefs.setCharPref(PREF_MIN_PLATFORM_COMPAT, "0");
+  is(AddonManager.strictCompatibility, false, "Strict compatibility should be disabled");
+
+  // Use a blank update URL
+  Services.prefs.setCharPref(PREF_UPDATEURL, TESTROOT + "missing.rdf");
+
+  install_test_addons(function() {
+
+    AddonManager.getAddonsByIDs(["bug557956-1@tests.mozilla.org",
+                                 "bug557956-2@tests.mozilla.org",
+                                 "bug557956-3@tests.mozilla.org",
+                                 "bug557956-4@tests.mozilla.org",
+                                 "bug557956-5@tests.mozilla.org",
+                                 "bug557956-6@tests.mozilla.org",
+                                 "bug557956-7@tests.mozilla.org",
+                                 "bug557956-8@tests.mozilla.org",
+                                 "bug557956-9@tests.mozilla.org",
+                                 "bug557956-10@tests.mozilla.org"],
+                                 function(aAddons) {
+
+      for (let addon of aAddons) {
+        if (addon.id == "bug557956-10@tests.mozilla.org")
+          is(addon.isCompatible, true, "Addon10 should be compatible before compat overrides are refreshed");
+        else
+          addon.uninstall();
+      }
+
+      Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, TESTROOT + "browser_bug557956.xml");
+      Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+
+      open_compatibility_window([], function(aWindow) {
+        var doc = aWindow.document;
+        wait_for_page(aWindow, "mismatch", function(aWindow) {
+          var items = get_list_names(doc.getElementById("mismatch.incompatible"));
+          is(items.length, 1, "Should have seen 1 incompatible item");
+          is(items[0], "Addon10 1.0", "Should have seen addon10 as incompatible");
+
+          var button = doc.documentElement.getButton("next");
+          EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+
+          wait_for_page(aWindow, "noupdates", function(aWindow) {
+            var button = doc.documentElement.getButton("finish");
+            ok(!button.hidden, "Finish button should not be hidden");
+            ok(!button.disabled, "Finish button should not be disabled");
+
+            wait_for_window_close(aWindow, function() {
+              uninstall_test_addons(run_next_test);
+            });
+
+            check_telemetry({disabled: 0, metaenabled: 0, metadisabled: 1,
+                             upgraded: 0, failed: 0, declined: 0});
+
+            EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+          });
+        });
+      });
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug557956.rdf b/toolkit/mozapps/webextensions/test/browser/browser_bug557956.rdf
new file mode 100644
index 000000000..c72eb9363
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug557956.rdf
@@ -0,0 +1,310 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <RDF:Description about="urn:mozilla:extension:bug557956-1@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug557956-2@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug557956-3@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug557956-4@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug557956-5@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug557956-6@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug557956-7@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://example.com/browser/toolkit/mozapps/extensions/test/browser/browser_bug557956_7_2.xpi</em:updateLink>
+                <em:updateHash>sha1:18674cf7ad76664e0ead6280a43cc0c681180505</em:updateHash>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://example.com/browser/toolkit/mozapps/extensions/test/browser/browser_bug557956_7_2.xpi</em:updateLink>
+                <em:updateHash>sha1:18674cf7ad76664e0ead6280a43cc0c681180505</em:updateHash>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug557956-8@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://example.com/browser/toolkit/mozapps/extensions/test/browser/browser_bug557956_8_2.xpi</em:updateLink>
+                <em:updateHash>sha1:5691c398e55ddf93aa1076b9820619d21d40acbc</em:updateHash>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://example.com/browser/toolkit/mozapps/extensions/test/browser/browser_bug557956_8_2.xpi</em:updateLink>
+                <em:updateHash>sha1:5691c398e55ddf93aa1076b9820619d21d40acbc</em:updateHash>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug557956-9@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://example.com/browser/toolkit/mozapps/extensions/test/browser/browser_bug557956_9_2.xpi</em:updateLink>
+                <em:updateHash>sha1:1ae63bfc6f67a4503a1ff1bd02402c98fef19ae3</em:updateHash>
+              </RDF:Description>
+            </em:targetApplication>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://example.com/browser/toolkit/mozapps/extensions/test/browser/browser_bug557956_9_2.xpi</em:updateLink>
+                <em:updateHash>sha1:1ae63bfc6f67a4503a1ff1bd02402c98fef19ae3</em:updateHash>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+</RDF:RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug557956.xml b/toolkit/mozapps/webextensions/test/browser/browser_bug557956.xml
new file mode 100644
index 000000000..c32ed3062
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug557956.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="1">
+  <addon_compatibility hosted="false">
+    <guid>bug557956-10@tests.mozilla.org</guid>
+    <name>Addon10</name>
+    <version_ranges>
+      <version_range type="incompatible">
+        <min_version>1.0</min_version>
+        <max_version>2.0</max_version>
+        <compatible_applications>
+          <application>
+            <min_version>0.1</min_version>
+            <max_version>999.0</max_version>
+            <appID>toolkit@mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug557956_8_2.xpi b/toolkit/mozapps/webextensions/test/browser/browser_bug557956_8_2.xpi
new file mode 100644
index 000000000..e99f3c3bd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug557956_8_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug557956_9_2.xpi b/toolkit/mozapps/webextensions/test/browser/browser_bug557956_9_2.xpi
new file mode 100644
index 000000000..23686b608
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug557956_9_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug562797.js b/toolkit/mozapps/webextensions/test/browser/browser_bug562797.js
new file mode 100644
index 000000000..55e882a05
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug562797.js
@@ -0,0 +1,975 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/**
+ * Tests that history navigation works for the add-ons manager.
+ */
+
+const MAIN_URL = "https://example.com/" + RELATIVE_DIR + "discovery.html";
+const SECOND_URL = "https://example.com/" + RELATIVE_DIR + "releaseNotes.xhtml";
+
+var gLoadCompleteCallback = null;
+
+var gProgressListener = {
+  onStateChange: function(aWebProgress, aRequest, aStateFlags, aStatus) {
+    // Only care about the network stop status events
+    if (!(aStateFlags & (Ci.nsIWebProgressListener.STATE_IS_NETWORK)) ||
+        !(aStateFlags & (Ci.nsIWebProgressListener.STATE_STOP)))
+      return;
+
+    if (gLoadCompleteCallback)
+      executeSoon(gLoadCompleteCallback);
+    gLoadCompleteCallback = null;
+  },
+
+  onLocationChange: function() { },
+  onSecurityChange: function() { },
+  onProgressChange: function() { },
+  onStatusChange: function() { },
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
+                                         Ci.nsISupportsWeakReference]),
+};
+
+function waitForLoad(aManager, aCallback) {
+  var browser = aManager.document.getElementById("discover-browser");
+  browser.addProgressListener(gProgressListener);
+
+  gLoadCompleteCallback = function() {
+    browser.removeProgressListener(gProgressListener);
+    aCallback();
+  };
+}
+
+function clickLink(aManager, aId, aCallback) {
+  waitForLoad(aManager, aCallback);
+
+  var browser = aManager.document.getElementById("discover-browser");
+
+  var link = browser.contentDocument.getElementById(aId);
+  EventUtils.sendMouseEvent({type: "click"}, link);
+}
+
+function test() {
+  requestLongerTimeout(2);
+
+  waitForExplicitFinish();
+
+  Services.prefs.setCharPref(PREF_DISCOVERURL, MAIN_URL);
+
+  SpecialPowers.pushPrefEnv({"set": [
+      ["dom.ipc.processCount", 1],
+    ]}, () => {
+    var gProvider = new MockProvider();
+    gProvider.createAddons([{
+      id: "test1@tests.mozilla.org",
+      name: "Test add-on 1",
+      description: "foo"
+    },
+    {
+      id: "test2@tests.mozilla.org",
+      name: "Test add-on 2",
+      description: "bar"
+    },
+    {
+      id: "test3@tests.mozilla.org",
+      name: "Test add-on 3",
+      type: "theme",
+      description: "bar"
+    }]);
+  });
+
+  run_next_test();
+}
+
+function end_test() {
+  finish();
+}
+
+function go_back(aManager) {
+  if (gUseInContentUI) {
+    gBrowser.goBack();
+  } else {
+    EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("back-btn"),
+                                       { }, aManager);
+  }
+}
+
+function go_back_backspace(aManager) {
+    EventUtils.synthesizeKey("VK_BACK_SPACE", {});
+}
+
+function go_forward_backspace(aManager) {
+    EventUtils.synthesizeKey("VK_BACK_SPACE", {shiftKey: true});
+}
+
+function go_forward(aManager) {
+  if (gUseInContentUI) {
+    gBrowser.goForward();
+  } else {
+    EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("forward-btn"),
+                                       { }, aManager);
+  }
+}
+
+function check_state(aManager, canGoBack, canGoForward) {
+  var doc = aManager.document;
+
+  if (gUseInContentUI) {
+    is(gBrowser.canGoBack, canGoBack, "canGoBack should be correct");
+    is(gBrowser.canGoForward, canGoForward, "canGoForward should be correct");
+  }
+
+  if (!is_hidden(doc.getElementById("back-btn"))) {
+    is(!doc.getElementById("back-btn").disabled, canGoBack, "Back button should have the right state");
+    is(!doc.getElementById("forward-btn").disabled, canGoForward, "Forward button should have the right state");
+  }
+}
+
+function is_in_list(aManager, view, canGoBack, canGoForward) {
+  var doc = aManager.document;
+
+  is(doc.getElementById("categories").selectedItem.value, view, "Should be on the right category");
+  is(get_current_view(aManager).id, "list-view", "Should be on the right view");
+
+  check_state(aManager, canGoBack, canGoForward);
+}
+
+function is_in_search(aManager, query, canGoBack, canGoForward) {
+  var doc = aManager.document;
+
+  is(doc.getElementById("categories").selectedItem.value, "addons://search/", "Should be on the right category");
+  is(get_current_view(aManager).id, "search-view", "Should be on the right view");
+  is(doc.getElementById("header-search").value, query, "Should have used the right query");
+
+  check_state(aManager, canGoBack, canGoForward);
+}
+
+function is_in_detail(aManager, view, canGoBack, canGoForward) {
+  var doc = aManager.document;
+
+  is(doc.getElementById("categories").selectedItem.value, view, "Should be on the right category");
+  is(get_current_view(aManager).id, "detail-view", "Should be on the right view");
+
+  check_state(aManager, canGoBack, canGoForward);
+}
+
+function is_in_discovery(aManager, url, canGoBack, canGoForward) {
+  var browser = aManager.document.getElementById("discover-browser");
+
+  is(aManager.document.getElementById("discover-view").selectedPanel, browser,
+     "Browser should be visible");
+
+  var spec = browser.currentURI.spec;
+  var pos = spec.indexOf("#");
+  if (pos != -1)
+    spec = spec.substring(0, pos);
+
+  is(spec, url, "Should have loaded the right url");
+
+  check_state(aManager, canGoBack, canGoForward);
+}
+
+function double_click_addon_element(aManager, aId) {
+  var addon = get_addon_element(aManager, aId);
+  addon.parentNode.ensureElementIsVisible(addon);
+  EventUtils.synthesizeMouseAtCenter(addon, { clickCount: 1 }, aManager);
+  EventUtils.synthesizeMouseAtCenter(addon, { clickCount: 2 }, aManager);
+}
+
+// Tests simple forward and back navigation and that the right heading and
+// category is selected
+add_test(function() {
+  open_manager("addons://list/extension", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension", false, false);
+
+    EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("category-plugin"), { }, aManager);
+
+    wait_for_view_load(aManager, function(aManager) {
+      info("Part 2");
+      is_in_list(aManager, "addons://list/plugin", true, false);
+
+      go_back(aManager);
+
+      wait_for_view_load(aManager, function(aManager) {
+        info("Part 3");
+        is_in_list(aManager, "addons://list/extension", false, true);
+
+        go_forward(aManager);
+
+        wait_for_view_load(aManager, function(aManager) {
+          info("Part 4");
+          is_in_list(aManager, "addons://list/plugin", true, false);
+
+          go_back(aManager);
+
+          wait_for_view_load(aManager, function(aManager) {
+            info("Part 5");
+            is_in_list(aManager, "addons://list/extension", false, true);
+
+            double_click_addon_element(aManager, "test1@tests.mozilla.org");
+
+            wait_for_view_load(aManager, function(aManager) {
+              info("Part 6");
+              is_in_detail(aManager, "addons://list/extension", true, false);
+
+              go_back(aManager);
+
+              wait_for_view_load(aManager, function(aManager) {
+                info("Part 7");
+                is_in_list(aManager, "addons://list/extension", false, true);
+
+                close_manager(aManager, run_next_test);
+              });
+            });
+          });
+        });
+      });
+    });
+  });
+});
+
+// Tests that browsing to the add-ons manager from a website and going back works
+// Only relevant for in-content UI
+add_test(function() {
+  if (!gUseInContentUI) {
+    run_next_test();
+    return;
+  }
+
+  function promiseViewLoad(manager) {
+    return new Promise(resolve => {
+      wait_for_view_load(manager, resolve);
+    });
+  }
+
+  function promiseManagerLoaded(manager) {
+    return new Promise(resolve => {
+      wait_for_manager_load(manager, resolve);
+    });
+  }
+
+  Task.spawn(function*() {
+    info("Part 1");
+    yield BrowserTestUtils.openNewForegroundTab(gBrowser, "http://example.com/", true, true);
+
+    info("Part 2");
+    ok(!gBrowser.canGoBack, "Should not be able to go back");
+    ok(!gBrowser.canGoForward, "Should not be able to go forward");
+
+    yield BrowserTestUtils.loadURI(gBrowser.selectedBrowser, "about:addons");
+    yield BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser);
+
+    let manager = yield promiseManagerLoaded(gBrowser.contentWindow.wrappedJSObject);
+
+    info("Part 3");
+    is_in_list(manager, "addons://list/extension", true, false);
+
+    // XXX: This is less than ideal, as it's currently difficult to deal with
+    // the browser frame switching between remote/non-remote in e10s mode.
+    let promiseLoaded;
+    if (gMultiProcessBrowser) {
+      promiseLoaded = BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser);
+    } else {
+      promiseLoaded = BrowserTestUtils.waitForEvent(gBrowser.selectedBrowser, "pageshow");
+    }
+
+    go_back(manager);
+    yield promiseLoaded;
+
+    info("Part 4");
+    is(gBrowser.currentURI.spec, "http://example.com/", "Should be showing the webpage");
+    ok(!gBrowser.canGoBack, "Should not be able to go back");
+    ok(gBrowser.canGoForward, "Should be able to go forward");
+
+    promiseLoaded = BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser);
+    go_forward(manager);
+    yield promiseLoaded;
+
+    manager = yield promiseManagerLoaded(gBrowser.contentWindow.wrappedJSObject);
+    info("Part 5");
+    is_in_list(manager, "addons://list/extension", true, false);
+
+    close_manager(manager, run_next_test);
+  });
+});
+
+// Tests simple forward and back navigation and that the right heading and
+// category is selected -- Keyboard navigation [Bug 565359]
+// Only add the test if the backspace key navigates back and addon-manager
+// loaded in a tab
+add_test(function() {
+
+  if (!gUseInContentUI || (Services.prefs.getIntPref("browser.backspace_action") != 0)) {
+    run_next_test();
+    return;
+  }
+
+  open_manager("addons://list/extension", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension", false, false);
+
+    EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("category-plugin"), { }, aManager);
+
+    wait_for_view_load(aManager, function(aManager) {
+      info("Part 2");
+      is_in_list(aManager, "addons://list/plugin", true, false);
+
+      go_back_backspace(aManager);
+
+      wait_for_view_load(aManager, function(aManager) {
+        info("Part 3");
+        is_in_list(aManager, "addons://list/extension", false, true);
+
+        go_forward_backspace(aManager);
+
+        wait_for_view_load(aManager, function(aManager) {
+          info("Part 4");
+          is_in_list(aManager, "addons://list/plugin", true, false);
+
+          go_back_backspace(aManager);
+
+          wait_for_view_load(aManager, function(aManager) {
+            info("Part 5");
+            is_in_list(aManager, "addons://list/extension", false, true);
+
+            double_click_addon_element(aManager, "test1@tests.mozilla.org");
+
+            wait_for_view_load(aManager, function(aManager) {
+              info("Part 6");
+              is_in_detail(aManager, "addons://list/extension", true, false);
+
+              go_back_backspace(aManager);
+
+              wait_for_view_load(aManager, function(aManager) {
+                info("Part 7");
+                is_in_list(aManager, "addons://list/extension", false, true);
+
+                close_manager(aManager, run_next_test);
+              });
+            });
+          });
+        });
+      });
+    });
+  });
+});
+
+
+// Tests that opening a custom first view only stores a single history entry
+add_test(function() {
+  open_manager("addons://list/plugin", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/plugin", false, false);
+
+    EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("category-extension"), { }, aManager);
+
+    wait_for_view_load(aManager, function(aManager) {
+      info("Part 2");
+      is_in_list(aManager, "addons://list/extension", true, false);
+
+      go_back(aManager);
+
+      wait_for_view_load(aManager, function(aManager) {
+        info("Part 3");
+        is_in_list(aManager, "addons://list/plugin", false, true);
+
+        close_manager(aManager, run_next_test);
+      });
+    });
+  });
+});
+
+
+// Tests that opening a view while the manager is already open adds a new
+// history entry
+add_test(function() {
+  open_manager("addons://list/extension", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension", false, false);
+
+    aManager.loadView("addons://list/plugin");
+
+    wait_for_view_load(aManager, function(aManager) {
+      info("Part 2");
+      is_in_list(aManager, "addons://list/plugin", true, false);
+
+      go_back(aManager);
+
+      wait_for_view_load(aManager, function(aManager) {
+        info("Part 3");
+        is_in_list(aManager, "addons://list/extension", false, true);
+
+        go_forward(aManager);
+
+        wait_for_view_load(aManager, function(aManager) {
+          info("Part 4");
+          is_in_list(aManager, "addons://list/plugin", true, false);
+
+          close_manager(aManager, run_next_test);
+        });
+      });
+    });
+  });
+});
+
+// Tests than navigating to a website and then going back returns to the
+// previous view
+// Only relevant for in-content UI
+add_test(function() {
+  if (!gUseInContentUI) {
+    run_next_test();
+    return;
+  }
+
+  open_manager("addons://list/plugin", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/plugin", false, false);
+
+    gBrowser.loadURI("http://example.com/");
+    gBrowser.addEventListener("pageshow", function(event) {
+      if (event.target.location != "http://example.com/")
+        return;
+      gBrowser.removeEventListener("pageshow", arguments.callee, false);
+      info("Part 2");
+
+      executeSoon(function() {
+        ok(gBrowser.canGoBack, "Should be able to go back");
+        ok(!gBrowser.canGoForward, "Should not be able to go forward");
+
+        go_back(aManager);
+
+        gBrowser.addEventListener("pageshow", function(event) {
+          if (event.target.location != "about:addons")
+            return;
+          gBrowser.removeEventListener("pageshow", arguments.callee, false);
+
+          wait_for_view_load(gBrowser.contentWindow.wrappedJSObject, function(aManager) {
+            info("Part 3");
+            is_in_list(aManager, "addons://list/plugin", false, true);
+
+            executeSoon(() => go_forward(aManager));
+            gBrowser.addEventListener("pageshow", function(event) {
+              if (event.target.location != "http://example.com/")
+                return;
+              gBrowser.removeEventListener("pageshow", arguments.callee, false);
+              info("Part 4");
+
+              executeSoon(function() {
+                ok(gBrowser.canGoBack, "Should be able to go back");
+                ok(!gBrowser.canGoForward, "Should not be able to go forward");
+
+                go_back(aManager);
+
+                gBrowser.addEventListener("pageshow", function(event) {
+                  if (event.target.location != "about:addons")
+                    return;
+                  gBrowser.removeEventListener("pageshow", arguments.callee, false);
+                  wait_for_view_load(gBrowser.contentWindow.wrappedJSObject, function(aManager) {
+                    info("Part 5");
+                    is_in_list(aManager, "addons://list/plugin", false, true);
+
+                    close_manager(aManager, run_next_test);
+                  });
+                }, false);
+              });
+            }, false);
+          });
+        }, false);
+      });
+    }, false);
+  });
+});
+
+// Tests that going back to search results works
+add_test(function() {
+  // Before we open the add-ons manager, we should make sure that no filter
+  // has been set. If one is set, we remove it.
+  // This is for the check below, from bug 611459.
+  let store = Cc["@mozilla.org/xul/xulstore;1"].getService(Ci.nsIXULStore);
+  store.removeValue("about:addons", "search-filter-radiogroup", "value");
+
+  open_manager("addons://list/extension", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension", false, false);
+
+    var search = aManager.document.getElementById("header-search");
+    search.focus();
+    search.value = "bar";
+    EventUtils.synthesizeKey("VK_RETURN", {}, aManager);
+
+    wait_for_view_load(aManager, function(aManager) {
+      // Remote search is meant to be checked by default (bug 611459), so we
+      // confirm that and then switch to a local search.
+      var localFilter = aManager.document.getElementById("search-filter-local");
+      var remoteFilter = aManager.document.getElementById("search-filter-remote");
+
+      is(remoteFilter.selected, true, "Remote filter should be set by default");
+
+      var list = aManager.document.getElementById("search-list");
+      list.ensureElementIsVisible(localFilter);
+      EventUtils.synthesizeMouseAtCenter(localFilter, { }, aManager);
+
+      is(localFilter.selected, true, "Should have changed to local filter");
+
+      // Now we continue with the normal test.
+
+      info("Part 2");
+      is_in_search(aManager, "bar", true, false);
+      check_all_in_list(aManager, ["test2@tests.mozilla.org", "test3@tests.mozilla.org"]);
+
+      double_click_addon_element(aManager, "test2@tests.mozilla.org");
+
+      wait_for_view_load(aManager, function(aManager) {
+        info("Part 3");
+        is_in_detail(aManager, "addons://search/", true, false);
+
+        go_back(aManager);
+        wait_for_view_load(aManager, function(aManager) {
+          info("Part 4");
+          is_in_search(aManager, "bar", true, true);
+          check_all_in_list(aManager, ["test2@tests.mozilla.org", "test3@tests.mozilla.org"]);
+
+          go_forward(aManager);
+          wait_for_view_load(aManager, function(aManager) {
+            info("Part 5");
+            is_in_detail(aManager, "addons://search/", true, false);
+
+            close_manager(aManager, run_next_test);
+          });
+        });
+      });
+    });
+  });
+});
+
+// Tests that going back from a webpage to a detail view loaded from a search
+// result works
+// Only relevant for in-content UI
+add_test(function() {
+  if (!gUseInContentUI) {
+    run_next_test();
+    return;
+  }
+
+  open_manager("addons://list/extension", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension", false, false);
+
+    var search = aManager.document.getElementById("header-search");
+    search.focus();
+    search.value = "bar";
+    EventUtils.synthesizeKey("VK_RETURN", {});
+
+    wait_for_view_load(aManager, function(aManager) {
+      info("Part 2");
+      is_in_search(aManager, "bar", true, false);
+      check_all_in_list(aManager, ["test2@tests.mozilla.org", "test3@tests.mozilla.org"]);
+
+      double_click_addon_element(aManager, "test2@tests.mozilla.org");
+
+      wait_for_view_load(aManager, function(aManager) {
+        info("Part 3");
+        is_in_detail(aManager, "addons://search/", true, false);
+
+        gBrowser.loadURI("http://example.com/");
+        gBrowser.addEventListener("pageshow", function(event) {
+          if (event.target.location != "http://example.com/")
+            return;
+          gBrowser.removeEventListener("pageshow", arguments.callee, false);
+
+          info("Part 4");
+          executeSoon(function() {
+            ok(gBrowser.canGoBack, "Should be able to go back");
+            ok(!gBrowser.canGoForward, "Should not be able to go forward");
+
+            go_back(aManager);
+            gBrowser.addEventListener("pageshow", function(event) {
+                if (event.target.location != "about:addons")
+                return;
+              gBrowser.removeEventListener("pageshow", arguments.callee, false);
+
+              wait_for_view_load(gBrowser.contentWindow.wrappedJSObject, function(aManager) {
+                info("Part 5");
+                is_in_detail(aManager, "addons://search/", true, true);
+
+                go_back(aManager);
+                wait_for_view_load(aManager, function(aManager) {
+                  info("Part 6");
+                  is_in_search(aManager, "bar", true, true);
+                  check_all_in_list(aManager, ["test2@tests.mozilla.org", "test3@tests.mozilla.org"]);
+
+                  close_manager(aManager, run_next_test);
+                });
+              });
+            }, false);
+          });
+        }, false);
+      });
+    });
+  });
+});
+
+// Tests that refreshing a list view does not affect the history
+// Only relevant for in-content UI
+add_test(function() {
+  if (!gUseInContentUI) {
+    run_next_test();
+    return;
+  }
+
+  open_manager("addons://list/extension", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension", false, false);
+
+    EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("category-plugin"), { }, aManager);
+
+    wait_for_view_load(aManager, function(aManager) {
+      info("Part 2");
+      is_in_list(aManager, "addons://list/plugin", true, false);
+
+      gBrowser.reload();
+      gBrowser.addEventListener("pageshow", function(event) {
+        if (event.target.location != "about:addons")
+          return;
+        gBrowser.removeEventListener("pageshow", arguments.callee, false);
+
+        wait_for_view_load(gBrowser.contentWindow.wrappedJSObject, function(aManager) {
+          info("Part 3");
+          is_in_list(aManager, "addons://list/plugin", true, false);
+
+          go_back(aManager);
+          wait_for_view_load(aManager, function(aManager) {
+            info("Part 4");
+            is_in_list(aManager, "addons://list/extension", false, true);
+
+            close_manager(aManager, run_next_test);
+          });
+        });
+      }, false);
+    });
+  });
+});
+
+// Tests that refreshing a detail view does not affect the history
+// Only relevant for in-content UI
+add_test(function() {
+  if (!gUseInContentUI) {
+    run_next_test();
+    return;
+  }
+
+  open_manager(null, function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension", false, false);
+
+    double_click_addon_element(aManager, "test1@tests.mozilla.org");
+
+    wait_for_view_load(aManager, function(aManager) {
+      info("Part 2");
+      is_in_detail(aManager, "addons://list/extension", true, false);
+
+      gBrowser.reload();
+      gBrowser.addEventListener("pageshow", function(event) {
+        if (event.target.location != "about:addons")
+          return;
+        gBrowser.removeEventListener("pageshow", arguments.callee, false);
+
+        wait_for_view_load(gBrowser.contentWindow.wrappedJSObject, function(aManager) {
+          info("Part 3");
+          is_in_detail(aManager, "addons://list/extension", true, false);
+
+          go_back(aManager);
+          wait_for_view_load(aManager, function(aManager) {
+            info("Part 4");
+            is_in_list(aManager, "addons://list/extension", false, true);
+
+            close_manager(aManager, run_next_test);
+          });
+        });
+      }, false);
+    });
+  });
+});
+
+// Tests that removing an extension from the detail view goes back and doesn't
+// allow you to go forward again.
+add_test(function() {
+  open_manager("addons://list/extension", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension", false, false);
+
+    double_click_addon_element(aManager, "test1@tests.mozilla.org");
+
+    wait_for_view_load(aManager, function(aManager) {
+      info("Part 2");
+      is_in_detail(aManager, "addons://list/extension", true, false);
+
+      EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("detail-uninstall-btn"),
+                                         { }, aManager);
+
+      wait_for_view_load(aManager, function() {
+        if (gUseInContentUI) {
+          // TODO until bug 590661 is fixed the back button will be enabled
+          // when displaying in content
+          is_in_list(aManager, "addons://list/extension", true, false);
+        } else {
+          is_in_list(aManager, "addons://list/extension", false, false);
+        }
+
+        close_manager(aManager, run_next_test);
+      });
+    });
+  });
+});
+
+// Tests that the back and forward buttons only show up for windowed mode
+add_test(function() {
+  open_manager(null, function(aManager) {
+    var doc = aManager.document;
+
+    if (gUseInContentUI) {
+      var btn = document.getElementById("back-button");
+      if (!btn || is_hidden(btn)) {
+        is_element_visible(doc.getElementById("back-btn"), "Back button should not be hidden");
+        is_element_visible(doc.getElementById("forward-btn"), "Forward button should not be hidden");
+      } else {
+        is_element_hidden(doc.getElementById("back-btn"), "Back button should be hidden");
+        is_element_hidden(doc.getElementById("forward-btn"), "Forward button should be hidden");
+      }
+    } else {
+      is_element_visible(doc.getElementById("back-btn"), "Back button should not be hidden");
+      is_element_visible(doc.getElementById("forward-btn"), "Forward button should not be hidden");
+    }
+
+    close_manager(aManager, run_next_test);
+  });
+});
+
+// Tests that opening the manager opens the last view
+add_test(function() {
+  open_manager("addons://list/plugin", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/plugin", false, false);
+
+    close_manager(aManager, function() {
+      open_manager(null, function(aManager) {
+        info("Part 2");
+        is_in_list(aManager, "addons://list/plugin", false, false);
+
+        close_manager(aManager, run_next_test);
+      });
+    });
+  });
+});
+
+// Tests that navigating the discovery page works when that was the first view
+add_test(function() {
+  open_manager("addons://discover/", function(aManager) {
+    info("1");
+    is_in_discovery(aManager, MAIN_URL, false, false);
+
+    clickLink(aManager, "link-good", function() {
+      info("2");
+      is_in_discovery(aManager, SECOND_URL, true, false);
+
+      waitForLoad(aManager, function() {
+        info("3");
+        is_in_discovery(aManager, MAIN_URL, false, true);
+
+        waitForLoad(aManager, function() {
+          is_in_discovery(aManager, SECOND_URL, true, false);
+
+          EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("category-plugin"), { }, aManager);
+
+          wait_for_view_load(aManager, function(aManager) {
+            is_in_list(aManager, "addons://list/plugin", true, false);
+
+            go_back(aManager);
+
+            wait_for_view_load(aManager, function(aManager) {
+              is_in_discovery(aManager, SECOND_URL, true, true);
+
+              go_back(aManager);
+
+              waitForLoad(aManager, function() {
+                is_in_discovery(aManager, MAIN_URL, false, true);
+
+                close_manager(aManager, run_next_test);
+              });
+            });
+          });
+        });
+
+        go_forward(aManager);
+      });
+
+      go_back(aManager);
+    });
+  });
+});
+
+// Tests that navigating the discovery page works when that was the second view
+add_test(function() {
+  open_manager("addons://list/plugin", function(aManager) {
+    is_in_list(aManager, "addons://list/plugin", false, false);
+
+    EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("category-discover"), { }, aManager);
+
+    wait_for_view_load(aManager, function(aManager) {
+      is_in_discovery(aManager, MAIN_URL, true, false);
+
+      clickLink(aManager, "link-good", function() {
+        is_in_discovery(aManager, SECOND_URL, true, false);
+
+        waitForLoad(aManager, function() {
+          is_in_discovery(aManager, MAIN_URL, true, true);
+
+          waitForLoad(aManager, function() {
+            is_in_discovery(aManager, SECOND_URL, true, false);
+
+            EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("category-plugin"), { }, aManager);
+
+            wait_for_view_load(aManager, function(aManager) {
+              is_in_list(aManager, "addons://list/plugin", true, false);
+
+              go_back(aManager);
+
+              wait_for_view_load(aManager, function(aManager) {
+                is_in_discovery(aManager, SECOND_URL, true, true);
+
+                go_back(aManager);
+
+                waitForLoad(aManager, function() {
+                  is_in_discovery(aManager, MAIN_URL, true, true);
+
+                  go_back(aManager);
+
+                  wait_for_view_load(aManager, function(aManager) {
+                    is_in_list(aManager, "addons://list/plugin", false, true);
+
+                    go_forward(aManager);
+
+                    wait_for_view_load(aManager, function(aManager) {
+                      is_in_discovery(aManager, MAIN_URL, true, true);
+
+                      waitForLoad(aManager, function() {
+                        is_in_discovery(aManager, SECOND_URL, true, true);
+
+                        close_manager(aManager, run_next_test);
+                      });
+
+                      go_forward(aManager);
+                    });
+                  });
+                });
+              });
+            });
+          });
+
+          go_forward(aManager);
+        });
+
+        go_back(aManager);
+      });
+    });
+  });
+});
+
+// Tests that when displaying in-content and opened in the background the back
+// and forward buttons still appear when switching tabs
+add_test(function() {
+  if (!gUseInContentUI) {
+    run_next_test();
+    return;
+  }
+
+  var tab = gBrowser.addTab("about:addons");
+  var browser = gBrowser.getBrowserForTab(tab);
+
+  browser.addEventListener("pageshow", function(event) {
+    if (event.target.location.href != "about:addons")
+      return;
+    browser.removeEventListener("pageshow", arguments.callee, true);
+
+    wait_for_manager_load(browser.contentWindow.wrappedJSObject, function() {
+      wait_for_view_load(browser.contentWindow.wrappedJSObject, function(aManager) {
+        gBrowser.selectedTab = tab;
+
+        var doc = aManager.document;
+        var btn = document.getElementById("back-button");
+        if (!btn || is_hidden(btn)) {
+          is_element_visible(doc.getElementById("back-btn"), "Back button should not be hidden");
+          is_element_visible(doc.getElementById("forward-btn"), "Forward button should not be hidden");
+        } else {
+          is_element_hidden(doc.getElementById("back-btn"), "Back button should be hidden");
+          is_element_hidden(doc.getElementById("forward-btn"), "Forward button should be hidden");
+        }
+
+        close_manager(aManager, run_next_test);
+      });
+    });
+  }, true);
+});
+
+// Tests that refreshing the disicovery pane integrates properly with history
+add_test(function() {
+  open_manager("addons://list/plugin", function(aManager) {
+    is_in_list(aManager, "addons://list/plugin", false, false);
+
+    EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("category-discover"), { }, aManager);
+
+    wait_for_view_load(aManager, function(aManager) {
+      is_in_discovery(aManager, MAIN_URL, true, false);
+
+      clickLink(aManager, "link-good", function() {
+        is_in_discovery(aManager, SECOND_URL, true, false);
+
+        EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("category-discover"), { }, aManager);
+
+        waitForLoad(aManager, function() {
+          is_in_discovery(aManager, MAIN_URL, true, false);
+
+          go_back(aManager);
+
+          waitForLoad(aManager, function() {
+            is_in_discovery(aManager, SECOND_URL, true, true);
+
+            go_back(aManager);
+
+            waitForLoad(aManager, function() {
+              is_in_discovery(aManager, MAIN_URL, true, true);
+
+              go_back(aManager);
+
+              wait_for_view_load(aManager, function(aManager) {
+                is_in_list(aManager, "addons://list/plugin", false, true);
+
+                go_forward(aManager);
+
+                wait_for_view_load(aManager, function(aManager) {
+                  is_in_discovery(aManager, MAIN_URL, true, true);
+
+                  waitForLoad(aManager, function() {
+                    is_in_discovery(aManager, SECOND_URL, true, true);
+
+                    waitForLoad(aManager, function() {
+                      is_in_discovery(aManager, MAIN_URL, true, false);
+
+                      close_manager(aManager, run_next_test);
+                    });
+                    go_forward(aManager);
+                  });
+
+                  go_forward(aManager);
+                });
+              });
+            });
+          });
+        });
+      });
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug562854.js b/toolkit/mozapps/webextensions/test/browser/browser_bug562854.js
new file mode 100644
index 000000000..53e890b71
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug562854.js
@@ -0,0 +1,129 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/**
+ * Tests that double-click does not go to detail view if the target is a link or button.
+ */
+
+function test() {
+  requestLongerTimeout(2);
+
+  waitForExplicitFinish();
+
+  var gProvider = new MockProvider();
+  gProvider.createAddons([{
+    id: "test1@tests.mozilla.org",
+    name: "Test add-on 1",
+    description: "foo",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }]);
+
+  run_next_test();
+}
+
+function end_test() {
+  finish();
+}
+
+function is_in_list(aManager, view) {
+  var doc = aManager.document;
+
+  is(doc.getElementById("categories").selectedItem.value, view, "Should be on the right category");
+  is(get_current_view(aManager).id, "list-view", "Should be on the right view");
+}
+
+function is_in_detail(aManager, view) {
+  var doc = aManager.document;
+
+  is(doc.getElementById("categories").selectedItem.value, view, "Should be on the right category");
+  is(get_current_view(aManager).id, "detail-view", "Should be on the right view");
+}
+
+// Check that double-click does something.
+add_test(function() {
+  open_manager("addons://list/extension", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension");
+
+    var addon = get_addon_element(aManager, "test1@tests.mozilla.org");
+    addon.parentNode.ensureElementIsVisible(addon);
+    EventUtils.synthesizeMouseAtCenter(addon, { clickCount: 1 }, aManager);
+    EventUtils.synthesizeMouseAtCenter(addon, { clickCount: 2 }, aManager);
+
+    wait_for_view_load(aManager, function(aManager) {
+      info("Part 2");
+      is_in_detail(aManager, "addons://list/extension");
+
+      close_manager(aManager, run_next_test);
+    });
+  });
+});
+
+// Check that double-click does nothing when over the disable button.
+add_test(function() {
+  open_manager("addons://list/extension", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension");
+
+    var addon = get_addon_element(aManager, "test1@tests.mozilla.org");
+    addon.parentNode.ensureElementIsVisible(addon);
+    EventUtils.synthesizeMouseAtCenter(
+      aManager.document.getAnonymousElementByAttribute(addon, "anonid", "disable-btn"),
+      { clickCount: 1 },
+      aManager
+    );
+    // The disable button is replaced by the enable button when clicked on.
+    EventUtils.synthesizeMouseAtCenter(
+      aManager.document.getAnonymousElementByAttribute(addon, "anonid", "enable-btn"),
+      { clickCount: 2 },
+      aManager
+    );
+
+    wait_for_view_load(aManager, function(aManager) {
+      info("Part 2");
+      is_in_list(aManager, "addons://list/extension");
+
+      close_manager(aManager, run_next_test);
+    });
+  });
+});
+
+// Check that double-click does nothing when over the undo button.
+add_test(function() {
+  open_manager("addons://list/extension", function(aManager) {
+    info("Part 1");
+    is_in_list(aManager, "addons://list/extension");
+
+    var addon = get_addon_element(aManager, "test1@tests.mozilla.org");
+    addon.parentNode.ensureElementIsVisible(addon);
+    EventUtils.synthesizeMouseAtCenter(
+      aManager.document.getAnonymousElementByAttribute(addon, "anonid", "remove-btn"),
+      { clickCount: 1 },
+      aManager
+    );
+
+    // The undo button is removed when clicked on.
+    // We need to wait for the UI to catch up.
+    setTimeout(function() {
+      var target = aManager.document.getAnonymousElementByAttribute(addon, "anonid", "undo-btn");
+      var rect = target.getBoundingClientRect();
+      var addonRect = addon.getBoundingClientRect();
+
+      EventUtils.synthesizeMouse(target, rect.width / 2, rect.height / 2, { clickCount: 1 }, aManager);
+      EventUtils.synthesizeMouse(addon,
+        rect.left - addonRect.left + rect.width / 2,
+        rect.top - addonRect.top + rect.height / 2,
+        { clickCount: 2 },
+        aManager
+      );
+
+      wait_for_view_load(aManager, function(aManager) {
+        info("Part 2");
+        is_in_list(aManager, "addons://list/extension");
+
+        close_manager(aManager, run_next_test);
+      });
+    }, 0);
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug562890.js b/toolkit/mozapps/webextensions/test/browser/browser_bug562890.js
new file mode 100644
index 000000000..ccb12c489
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug562890.js
@@ -0,0 +1,78 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/**
+ * Tests the Preferences button for addons in list view
+ */
+
+function test() {
+  requestLongerTimeout(2);
+
+  waitForExplicitFinish();
+
+  var addonPrefsURI = CHROMEROOT + "addon_prefs.xul";
+
+  var gProvider = new MockProvider();
+  gProvider.createAddons([{
+    id: "test1@tests.mozilla.org",
+    name: "Test add-on 1",
+    description: "foo"
+  },
+  {
+    id: "test2@tests.mozilla.org",
+    name: "Test add-on 2",
+    description: "bar",
+    optionsURL: addonPrefsURI
+  }]);
+
+  open_manager("addons://list/extension", function(aManager) {
+    var addonList = aManager.document.getElementById("addon-list");
+    for (var addonItem of addonList.childNodes) {
+      if (addonItem.hasAttribute("name") &&
+          addonItem.getAttribute("name") == "Test add-on 1")
+        break;
+    }
+    var prefsBtn = aManager.document.getAnonymousElementByAttribute(addonItem,
+                                                                   "anonid",
+                                                                   "preferences-btn");
+    is(prefsBtn.hidden, true, "Prefs button should be hidden for addon with no optionsURL set")
+
+    for (addonItem of addonList.childNodes) {
+      if (addonItem.hasAttribute("name") &&
+          addonItem.getAttribute("name") == "Test add-on 2")
+        break;
+    }
+    prefsBtn = aManager.document.getAnonymousElementByAttribute(addonItem,
+                                                                "anonid",
+                                                                "preferences-btn");
+    is(prefsBtn.hidden, false, "Prefs button should be shown for addon with a optionsURL set")
+
+    Services.ww.registerNotification(function TEST_ww_observer(aSubject, aTopic, aData) {
+      if (aTopic == "domwindowclosed") {
+        Services.ww.unregisterNotification(TEST_ww_observer);
+        // Give the preference window a chance to finish closing before closing
+        // the add-ons manager.
+        executeSoon(function() {
+          close_manager(aManager, finish);
+        });
+      } else if (aTopic == "domwindowopened") {
+        let win = aSubject.QueryInterface(Ci.nsIDOMEventTarget);
+        win = aSubject.QueryInterface(Ci.nsIDOMEventTarget);
+        win.addEventListener("load", function TEST_ww_onLoad() {
+          if (win.location != addonPrefsURI)
+            return;
+
+          win.removeEventListener("load", TEST_ww_onLoad, false);
+          is(win.location, addonPrefsURI,
+             "The correct addon pref window should have opened");
+          win.close();
+        }, false);
+      }
+    });
+
+    addonList.ensureElementIsVisible(addonItem);
+    EventUtils.synthesizeMouseAtCenter(prefsBtn, { }, aManager);
+  });
+
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug562899.js b/toolkit/mozapps/webextensions/test/browser/browser_bug562899.js
new file mode 100644
index 000000000..9807be98f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug562899.js
@@ -0,0 +1,88 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Simulates quickly switching between different list views to verify that only
+// the last selected is displayed
+
+var tempScope = {};
+Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm", tempScope);
+var LightweightThemeManager = tempScope.LightweightThemeManager;
+
+const xpi = "browser/toolkit/mozapps/extensions/test/browser/browser_installssl.xpi";
+
+var gManagerWindow;
+var gCategoryUtilities;
+
+function test() {
+  waitForExplicitFinish();
+
+  // Add a lightweight theme so at least one theme exists
+  LightweightThemeManager.currentTheme = {
+    id: "test",
+    name: "Test lightweight theme",
+    headerURL: "http://example.com/header.png"
+  };
+
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    LightweightThemeManager.forgetUsedTheme("test");
+    finish();
+  });
+}
+
+// Tests that loading a second view before the first has not finished loading
+// does not merge the results
+add_test(function() {
+  var themeCount = null;
+  var pluginCount = null;
+  var themeItem = gCategoryUtilities.get("theme");
+  var pluginItem = gCategoryUtilities.get("plugin");
+  var list = gManagerWindow.document.getElementById("addon-list");
+
+  gCategoryUtilities.open(themeItem, function() {
+    themeCount = list.childNodes.length;
+    ok(themeCount > 0, "Test is useless if there are no themes");
+
+    gCategoryUtilities.open(pluginItem, function() {
+      pluginCount = list.childNodes.length;
+      ok(pluginCount > 0, "Test is useless if there are no plugins");
+
+      gCategoryUtilities.open(themeItem);
+
+      gCategoryUtilities.open(pluginItem, function() {
+        is(list.childNodes.length, pluginCount, "Should only see the plugins");
+
+        var item = list.firstChild;
+        while (item) {
+          is(item.getAttribute("type"), "plugin", "All items should be plugins");
+          item = item.nextSibling;
+        }
+
+        // Tests that switching to, from, to the same pane in quick succession
+        // still only shows the right number of results
+
+        gCategoryUtilities.open(themeItem);
+        gCategoryUtilities.open(pluginItem);
+        gCategoryUtilities.open(themeItem, function() {
+          is(list.childNodes.length, themeCount, "Should only see the theme");
+
+          var item = list.firstChild;
+          while (item) {
+            is(item.getAttribute("type"), "theme", "All items should be theme");
+            item = item.nextSibling;
+          }
+
+          run_next_test();
+        });
+      });
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug562992.js b/toolkit/mozapps/webextensions/test/browser/browser_bug562992.js
new file mode 100644
index 000000000..1cd4d90cd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug562992.js
@@ -0,0 +1,70 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * This test ensures that when the extension manager UI is open and a
+ * restartless extension is installed from the web, its correct name appears
+ * when the download and installation complete.  See bug 562992.
+ */
+
+var gManagerWindow;
+var gProvider;
+var gInstall;
+
+const EXTENSION_NAME = "Wunderbar";
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  open_manager("addons://list/extension", function (aWindow) {
+    gManagerWindow = aWindow;
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function () {
+    finish();
+  });
+}
+
+// Create a MockInstall with a MockAddon payload and add it to the provider,
+// causing the onNewInstall event to fire, which in turn will cause a new
+// "installing" item to appear in the list of extensions.
+add_test(function () {
+  let addon = new MockAddon(undefined, EXTENSION_NAME, "extension", true);
+  gInstall = new MockInstall(undefined, undefined, addon);
+  gInstall.addTestListener({
+    onNewInstall: run_next_test
+  });
+  gProvider.addInstall(gInstall);
+});
+
+// Finish the install, which will cause the "installing" item to be converted
+// to an "installed" item, which should have the correct add-on name.
+add_test(function () {
+  gInstall.addTestListener({
+    onInstallEnded: function () {
+      let list = gManagerWindow.document.getElementById("addon-list");
+
+      // To help prevent future breakage, don't assume the item is the only one
+      // in the list, or that it's first in the list.  Find it by name.
+      for (let i = 0; i < list.itemCount; i++) {
+        let item = list.getItemAtIndex(i);
+        if (item.getAttribute("name") === EXTENSION_NAME) {
+          ok(true, "Item with correct name found");
+          run_next_test();
+          return;
+        }
+      }
+      ok(false, "Item with correct name was not found");
+      run_next_test();
+    }
+  });
+  gInstall.install();
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug567127.js b/toolkit/mozapps/webextensions/test/browser/browser_bug567127.js
new file mode 100644
index 000000000..1d9a75416
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug567127.js
@@ -0,0 +1,136 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests bug 567127 - Add install button to the add-ons manager
+
+var MockFilePicker = SpecialPowers.MockFilePicker;
+MockFilePicker.init(window);
+
+var gManagerWindow;
+var gSawInstallNotification = false;
+
+// This listens for the next opened window and checks it is of the right url.
+// opencallback is called when the new window is fully loaded
+// closecallback is called when the window is closed
+function WindowOpenListener(url, opencallback, closecallback) {
+  this.url = url;
+  this.opencallback = opencallback;
+  this.closecallback = closecallback;
+
+  var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
+                     .getService(Components.interfaces.nsIWindowMediator);
+  wm.addListener(this);
+}
+
+WindowOpenListener.prototype = {
+  url: null,
+  opencallback: null,
+  closecallback: null,
+  window: null,
+  domwindow: null,
+
+  handleEvent: function(event) {
+    is(this.domwindow.document.location.href, this.url, "Should have opened the correct window");
+
+    this.domwindow.removeEventListener("load", this, false);
+    // Allow any other load handlers to execute
+    var self = this;
+    executeSoon(function() { self.opencallback(self.domwindow); } );
+  },
+
+  onWindowTitleChange: function(window, title) {
+  },
+
+  onOpenWindow: function(window) {
+    if (this.window)
+      return;
+
+    this.window = window;
+    this.domwindow = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
+                           .getInterface(Components.interfaces.nsIDOMWindow);
+    this.domwindow.addEventListener("load", this, false);
+  },
+
+  onCloseWindow: function(window) {
+    if (this.window != window)
+      return;
+
+    var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
+                       .getService(Components.interfaces.nsIWindowMediator);
+    wm.removeListener(this);
+    this.opencallback = null;
+    this.window = null;
+    this.domwindow = null;
+
+    // Let the window close complete
+    executeSoon(this.closecallback);
+    this.closecallback = null;
+  }
+};
+
+
+var gInstallNotificationObserver = {
+  observe: function(aSubject, aTopic, aData) {
+    var installInfo = aSubject.QueryInterface(Ci.amIWebInstallInfo);
+    if (gTestInWindow)
+      is(installInfo.browser, null, "Notification should have a null browser");
+    else
+      isnot(installInfo.browser, null, "Notification should have non-null browser");
+    gSawInstallNotification = true;
+    Services.obs.removeObserver(this, "addon-install-started");
+  }
+};
+
+
+function test_confirmation(aWindow, aExpectedURLs) {
+  var list = aWindow.document.getElementById("itemList");
+  is(list.childNodes.length, aExpectedURLs.length, "Should be the right number of installs");
+
+  for (let url of aExpectedURLs) {
+    let found = false;
+    for (let node of list.children) {
+      if (node.url == url) {
+        found = true;
+        break;
+      }
+    }
+    ok(found, "Should have seen " + url + " in the list");
+  }
+
+  aWindow.document.documentElement.cancelDialog();
+}
+
+add_task(function* test_install_from_file() {
+  gManagerWindow = yield open_manager("addons://list/extension");
+
+  var filePaths = [
+                   get_addon_file_url("browser_bug567127_1.xpi"),
+                   get_addon_file_url("browser_bug567127_2.xpi")
+                  ];
+  MockFilePicker.returnFiles = filePaths.map(aPath => aPath.file);
+
+  Services.obs.addObserver(gInstallNotificationObserver,
+                           "addon-install-started", false);
+
+  // Set handler that executes the core test after the window opens,
+  // and resolves the promise when the window closes
+  let pInstallURIClosed = new Promise((resolve, reject) => {
+    new WindowOpenListener(INSTALL_URI, function(aWindow) {
+      try {
+        test_confirmation(aWindow, filePaths.map(aPath => aPath.spec));
+      } catch (e) {
+        reject(e);
+      }
+    }, resolve);
+  });
+
+  gManagerWindow.gViewController.doCommand("cmd_installFromFile");
+
+  yield pInstallURIClosed;
+
+  is(gSawInstallNotification, true, "Should have seen addon-install-started notification.");
+
+  MockFilePicker.cleanup();
+  yield close_manager(gManagerWindow);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug567137.js b/toolkit/mozapps/webextensions/test/browser/browser_bug567137.js
new file mode 100644
index 000000000..bb9b9a894
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug567137.js
@@ -0,0 +1,40 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test that the selected category is persisted across loads of the manager
+
+function test() {
+  waitForExplicitFinish();
+
+  open_manager(null, function(aWindow) {
+    let utils = new CategoryUtilities(aWindow);
+
+    // Open the plugins category
+    utils.openType("plugin", function() {
+
+      // Re-open the manager
+      close_manager(aWindow, function() {
+        open_manager(null, function(aWindow) {
+          utils = new CategoryUtilities(aWindow);
+
+          is(utils.selectedCategory, "plugin", "Should have shown the plugins category");
+
+          // Open the extensions category
+          utils.openType("extension", function() {
+
+            // Re-open the manager
+            close_manager(aWindow, function() {
+              open_manager(null, function(aWindow) {
+                utils = new CategoryUtilities(aWindow);
+
+                is(utils.selectedCategory, "extension", "Should have shown the extensions category");
+                close_manager(aWindow, finish);
+              });
+            });
+          });
+        });
+      });
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug570760.js b/toolkit/mozapps/webextensions/test/browser/browser_bug570760.js
new file mode 100644
index 000000000..0606a9a31
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug570760.js
@@ -0,0 +1,44 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// As part of bug 1077403, the leaking uncaught rejection should be fixed.
+thisTestLeaksUncaughtRejectionsAndShouldBeFixed("");
+
+// Bug 570760 - Make ctrl-f and / focus the search box in the add-ons manager
+
+var gManagerWindow;
+var focusCount = 0;
+
+function test() {
+  waitForExplicitFinish();
+
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+
+    var searchBox = gManagerWindow.document.getElementById("header-search");
+    function focusHandler() {
+      searchBox.blur();
+      focusCount++;
+    }
+    searchBox.addEventListener("focus", focusHandler);
+    f_key_test();
+    slash_key_test();
+    searchBox.removeEventListener("focus", focusHandler);
+    end_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, finish);
+}
+
+function f_key_test() {
+  EventUtils.synthesizeKey("f", { accelKey: true }, gManagerWindow);
+  is(focusCount, 1, "Search box should have been focused due to the f key");
+}
+
+function slash_key_test() {
+  EventUtils.synthesizeKey("/", { }, gManagerWindow);
+  is(focusCount, 2, "Search box should have been focused due to the / key");
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug572561.js b/toolkit/mozapps/webextensions/test/browser/browser_bug572561.js
new file mode 100644
index 000000000..69102060e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug572561.js
@@ -0,0 +1,99 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that the locale category is shown if there are no locale packs
+// installed but some are pending install
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gProvider;
+var gInstallProperties = [{
+  name: "Locale Category Test",
+  type: "locale"
+}];
+var gInstall;
+var gExpectedCancel = false;
+var gTestInstallListener = {
+  onInstallStarted: function(aInstall) {
+    check_hidden(false);
+  },
+
+  onInstallEnded: function(aInstall) {
+    check_hidden(false);
+    run_next_test();
+  },
+
+  onInstallCancelled: function(aInstall) {
+    ok(gExpectedCancel, "Should expect install cancel");
+    check_hidden(false);
+    run_next_test();
+  },
+
+  onInstallFailed: function(aInstall) {
+    ok(false, "Did not expect onInstallFailed");
+    run_next_test();
+  }
+};
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+function check_hidden(aExpectedHidden) {
+  var hidden = !gCategoryUtilities.isTypeVisible("locale");
+  is(hidden, aExpectedHidden, "Should have correct hidden state");
+}
+
+// Tests that a non-active install does not make the locale category show
+add_test(function() {
+  check_hidden(true);
+  gInstall = gProvider.createInstalls(gInstallProperties)[0];
+  gInstall.addTestListener(gTestInstallListener);
+  check_hidden(true);
+  run_next_test();
+});
+
+// Test that restarting the add-on manager with a non-active install
+// does not cause the locale category to show
+add_test(function() {
+  restart_manager(gManagerWindow, null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    check_hidden(true);
+    run_next_test();
+  });
+});
+
+// Test that installing the install shows the locale category
+add_test(function() {
+  gInstall.install();
+});
+
+// Test that restarting the add-on manager does not cause the locale category
+// to become hidden
+add_test(function() {
+  restart_manager(gManagerWindow, null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    check_hidden(false);
+
+    gExpectedCancel = true;
+    gInstall.cancel();
+  });
+});
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug573062.js b/toolkit/mozapps/webextensions/test/browser/browser_bug573062.js
new file mode 100644
index 000000000..6554451fb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug573062.js
@@ -0,0 +1,116 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function test() {
+  waitForExplicitFinish();
+
+  var gProvider = new MockProvider();
+  let perms = AddonManager.PERM_CAN_UNINSTALL |
+              AddonManager.PERM_CAN_ENABLE | AddonManager.PERM_CAN_DISABLE;
+
+  gProvider.createAddons([{
+    id: "restart-enable-disable@tests.mozilla.org",
+    name: "restart-enable-disable",
+    description: "foo",
+    permissions: perms,
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_ENABLE |
+                                AddonManager.OP_NEEDS_RESTART_DISABLE
+  },
+  {
+    id: "restart-uninstall@tests.mozilla.org",
+    name: "restart-uninstall",
+    description: "foo",
+    permissions: perms,
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_UNINSTALL
+  },
+  {
+    id: "no-restart-required@tests.mozilla.org",
+    name: "no-restart-required",
+    description: "bar",
+    permissions: perms,
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }]);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    let addonList = aWindow.document.getElementById("addon-list");
+    let ed_r_Item, un_r_Item, no_r_Item;
+    for (let addonItem of addonList.childNodes) {
+      let name = addonItem.getAttribute("name");
+      switch (name) {
+        case "restart-enable-disable":
+          ed_r_Item = addonItem;
+          break;
+        case "restart-uninstall":
+          un_r_Item = addonItem;
+          break;
+        case "no-restart-required":
+          no_r_Item = addonItem;
+          break;
+      }
+    }
+
+    // Check the buttons in the list view.
+    function checkTooltips(aItem, aEnable, aDisable, aRemove) {
+      is(aItem._enableBtn.getAttribute("tooltiptext"), aEnable);
+      is(aItem._disableBtn.getAttribute("tooltiptext"), aDisable);
+      is(aItem._removeBtn.getAttribute("tooltiptext"), aRemove);
+    }
+
+    let strs = aWindow.gStrings.ext;
+    addonList.selectedItem = ed_r_Item;
+    let ed_args = [ed_r_Item,
+                   strs.GetStringFromName("enableAddonRestartRequiredTooltip"),
+                   strs.GetStringFromName("disableAddonRestartRequiredTooltip"),
+                   strs.GetStringFromName("uninstallAddonTooltip")];
+    checkTooltips.apply(null, ed_args);
+
+    addonList.selectedItem = un_r_Item;
+    let un_args = [un_r_Item,
+                   strs.GetStringFromName("enableAddonTooltip"),
+                   strs.GetStringFromName("disableAddonTooltip"),
+                   strs.GetStringFromName("uninstallAddonRestartRequiredTooltip")];
+    checkTooltips.apply(null, un_args);
+
+    addonList.selectedItem = no_r_Item;
+    let no_args = [no_r_Item,
+                   strs.GetStringFromName("enableAddonTooltip"),
+                   strs.GetStringFromName("disableAddonTooltip"),
+                   strs.GetStringFromName("uninstallAddonTooltip")];
+    checkTooltips.apply(null, no_args);
+
+    // Check the buttons in the details view.
+    function checkTooltips2(aItem, aEnable, aDisable, aRemove) {
+        let detailEnable = aWindow.document.getElementById("detail-enable-btn");
+    let detailDisable = aWindow.document.getElementById("detail-disable-btn");
+    let detailUninstall = aWindow.document.getElementById("detail-uninstall-btn");
+      ok(detailEnable.getAttribute("tooltiptext") == aEnable);
+      ok(detailDisable.getAttribute("tooltiptext") == aDisable);
+      ok(detailUninstall.getAttribute("tooltiptext")  == aRemove);
+    }
+
+    function showInDetailView(aAddonId) {
+      aWindow.gViewController.loadView("addons://detail/" +
+                                       aWindow.encodeURIComponent(aAddonId));
+    }
+
+    // enable-disable:
+    showInDetailView("restart-enable-disable@tests.mozilla.org");
+    wait_for_view_load(aWindow, function() {
+      checkTooltips2.apply(null, ed_args);
+      // uninstall:
+      showInDetailView("restart-uninstall@tests.mozilla.org");
+      wait_for_view_load(aWindow, function() {
+        checkTooltips2.apply(null, un_args);
+        // no restart:
+        showInDetailView("no-restart-required@tests.mozilla.org");
+        wait_for_view_load(aWindow, function() {
+          checkTooltips2.apply(null, no_args);
+          aWindow.close();
+          finish();
+        });
+      });
+    });
+
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug577990.js b/toolkit/mozapps/webextensions/test/browser/browser_bug577990.js
new file mode 100644
index 000000000..913b3b954
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug577990.js
@@ -0,0 +1,132 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that the visible delay in showing the "Language" category occurs
+// very minimally
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gProvider;
+var gInstall;
+var gInstallProperties = [{
+  name: "Locale Category Test",
+  type: "locale"
+}];
+
+function test() {
+  try {
+    if (Components.classes["@mozilla.org/gfx/info;1"].getService(Components.interfaces.nsIGfxInfo).D2DEnabled) {
+      requestLongerTimeout(2);
+    }
+  } catch (e) {}
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, finish);
+}
+
+function install_locale(aCallback) {
+  gInstall = gProvider.createInstalls(gInstallProperties)[0];
+  gInstall.addTestListener({
+    onInstallEnded: function(aInstall) {
+      gInstall.removeTestListener(this);
+      executeSoon(aCallback);
+    }
+  });
+  gInstall.install();
+}
+
+function check_hidden(aExpectedHidden) {
+  var hidden = !gCategoryUtilities.isTypeVisible("locale");
+  is(hidden, !!aExpectedHidden, "Should have correct hidden state");
+}
+
+function run_open_test(aTestSetup, aLoadHidden, aInitializedHidden, aSelected) {
+  function loadCallback(aManagerWindow) {
+    gManagerWindow = aManagerWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    check_hidden(aLoadHidden);
+  }
+
+  function run() {
+    open_manager(null, function() {
+      check_hidden(aInitializedHidden);
+      var selected = (gCategoryUtilities.selectedCategory == "locale");
+      is(selected, !!aSelected, "Should have correct selected state");
+
+      run_next_test();
+    }, loadCallback);
+  }
+
+  close_manager(gManagerWindow, function() {
+    // Allow for asynchronous functions to run before the manager opens
+    aTestSetup ? aTestSetup(run) : run();
+  });
+}
+
+
+// Tests that the locale category is hidden when there are no locales installed
+add_test(function() {
+  run_open_test(null, true, true);
+});
+
+// Tests that installing a locale while the Add-on Manager is open shows the
+// locale category
+add_test(function() {
+  check_hidden(true);
+  install_locale(function() {
+    check_hidden(false);
+    run_next_test();
+  });
+});
+
+// Tests that the locale category is shown with no delay when restarting
+// Add-on Manager
+add_test(function() {
+  run_open_test(null, false, false);
+});
+
+// Tests that cancelling the locale install and restarting the Add-on Manager
+// causes the locale category to be hidden with an acceptable delay
+add_test(function() {
+  gInstall.cancel();
+  run_open_test(null, false, true)
+});
+
+// Tests that the locale category is hidden with no delay when restarting
+// Add-on Manager
+add_test(function() {
+  run_open_test(null, true, true);
+});
+
+// Tests that installing a locale when the Add-on Manager is closed, and then
+// opening the Add-on Manager causes the locale category to be shown with an
+// acceptable delay
+add_test(function() {
+  run_open_test(install_locale, true, false);
+});
+
+// Tests that selection of the locale category persists
+add_test(function() {
+  gCategoryUtilities.openType("locale", function() {
+    run_open_test(null, false, false, true);
+  });
+});
+
+// Tests that cancelling the locale install and restarting the Add-on Manager
+// causes the locale category to be hidden and not selected
+add_test(function() {
+  gInstall.cancel();
+  run_open_test(null, false, true);
+});
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug580298.js b/toolkit/mozapps/webextensions/test/browser/browser_bug580298.js
new file mode 100644
index 000000000..d3d338203
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug580298.js
@@ -0,0 +1,98 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that certain types of addons do not have their version number
+// displayed. This currently only includes lightweight themes.
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gProvider;
+
+add_task(function* test() {
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "extension@tests.mozilla.org",
+    name: "Extension 1",
+    type: "extension",
+    version: "123"
+  }, {
+    id: "theme@tests.mozilla.org",
+    name: "Theme 2",
+    type: "theme",
+    version: "456"
+  }, {
+    id: "lwtheme@personas.mozilla.org",
+    name: "Persona 3",
+    type: "theme",
+    version: "789"
+  }]);
+
+  gManagerWindow = yield open_manager();
+  gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+});
+
+function get(aId) {
+  return gManagerWindow.document.getElementById(aId);
+}
+
+function get_node(parent, anonid) {
+  return parent.ownerDocument.getAnonymousElementByAttribute(parent, "anonid", anonid);
+}
+
+function open_details(aList, aItem, aCallback) {
+  aList.ensureElementIsVisible(aItem);
+  EventUtils.synthesizeMouseAtCenter(aItem, { clickCount: 1 }, gManagerWindow);
+  EventUtils.synthesizeMouseAtCenter(aItem, { clickCount: 2 }, gManagerWindow);
+  return new Promise(resolve => wait_for_view_load(gManagerWindow, resolve));
+}
+
+var check_addon_has_version = Task.async(function*(aList, aName, aVersion) {
+  for (let i = 0; i < aList.itemCount; i++) {
+    let item = aList.getItemAtIndex(i);
+    if (get_node(item, "name").value === aName) {
+      ok(true, "Item with correct name found");
+      let { version } = yield get_tooltip_info(item);
+      is(version, aVersion, "Item has correct version");
+      return item;
+    }
+  }
+  ok(false, "Item with correct name was not found");
+  return null;
+});
+
+add_task(function*() {
+  yield gCategoryUtilities.openType("extension");
+  info("Extension");
+  let list = gManagerWindow.document.getElementById("addon-list");
+  let item = yield check_addon_has_version(list, "Extension 1", "123");
+  yield open_details(list, item);
+  is_element_visible(get("detail-version"), "Details view has version visible");
+  is(get("detail-version").value, "123", "Details view has correct version");
+});
+
+add_task(function*() {
+  yield gCategoryUtilities.openType("theme");
+  info("Normal theme");
+  let list = gManagerWindow.document.getElementById("addon-list");
+  let item = yield check_addon_has_version(list, "Theme 2", "456");
+  yield open_details(list, item);
+  is_element_visible(get("detail-version"), "Details view has version visible");
+  is(get("detail-version").value, "456", "Details view has correct version");
+});
+
+add_task(function*() {
+  yield gCategoryUtilities.openType("theme");
+  info("Lightweight theme");
+  let list = gManagerWindow.document.getElementById("addon-list");
+  // See that the version isn't displayed
+  let item = yield check_addon_has_version(list, "Persona 3", undefined);
+  yield open_details(list, item);
+  is_element_hidden(get("detail-version"), "Details view has version hidden");
+  // If the version element is hidden then we don't care about its value
+});
+
+add_task(function end_test() {
+  close_manager(gManagerWindow, finish);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug581076.js b/toolkit/mozapps/webextensions/test/browser/browser_bug581076.js
new file mode 100644
index 000000000..b02a6cc3e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug581076.js
@@ -0,0 +1,132 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 581076 - No "See all results" link present when searching for add-ons and not all are displayed (extensions.getAddons.maxResults)
+
+const PREF_GETADDONS_BROWSESEARCHRESULTS = "extensions.getAddons.search.browseURL";
+const PREF_GETADDONS_GETSEARCHRESULTS = "extensions.getAddons.search.url";
+const PREF_GETADDONS_MAXRESULTS = "extensions.getAddons.maxResults";
+const SEARCH_URL = TESTROOT + "browser_searching.xml";
+const SEARCH_EXPECTED_TOTAL = 100;
+const SEARCH_QUERY = "search";
+
+const SEARCHABLE_PAGE = "addons://list/extension";
+
+var gManagerWindow;
+
+
+function test() {
+  Services.prefs.setCharPref(PREF_GETADDONS_GETSEARCHRESULTS, SEARCH_URL);
+  Services.prefs.setIntPref(PREF_SEARCH_MAXRESULTS, 15);
+
+  waitForExplicitFinish();
+
+  open_manager(SEARCHABLE_PAGE, function(aWindow) {
+    gManagerWindow = aWindow;
+    run_next_test();
+  });
+}
+
+function end_test() {
+  // Test generates a lot of available installs so just cancel them all
+  AddonManager.getAllInstalls(function(aInstalls) {
+    for (let install of aInstalls)
+      install.cancel();
+
+    close_manager(gManagerWindow, finish);
+  });
+}
+
+function search(aRemoteSearch, aCallback) {
+  waitForFocus(function() {
+    var searchBox = gManagerWindow.document.getElementById("header-search");
+    searchBox.value = SEARCH_QUERY;
+
+    EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+    EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+    wait_for_view_load(gManagerWindow, function() {
+      let filter;
+      if (aRemoteSearch)
+        filter = gManagerWindow.document.getElementById("search-filter-remote");
+      else
+        filter = gManagerWindow.document.getElementById("search-filter-local");
+      EventUtils.synthesizeMouseAtCenter(filter, { }, gManagerWindow);
+
+      executeSoon(aCallback);
+    });
+  }, gManagerWindow);
+}
+
+function check_allresultslink(aShouldShow) {
+  var list = gManagerWindow.document.getElementById("search-list");
+  var link = gManagerWindow.document.getElementById("search-allresults-link");
+  is(link.parentNode, list.lastChild, "Footer should be at the end of the richlistbox");
+  if (aShouldShow) {
+    is_element_visible(link, "All Results link should be visible");
+    is(link.value, "See all " + SEARCH_EXPECTED_TOTAL + " results", "All Results link should show the correct message");
+    var scope = {};
+    Components.utils.import("resource://gre/modules/addons/AddonRepository.jsm", scope);
+    is(link.href, scope.AddonRepository.getSearchURL(SEARCH_QUERY), "All Results link should have the correct href");
+  } else {
+    is_element_hidden(link, "All Results link should be hidden");
+  }
+}
+
+add_test(function() {
+  info("Searching locally");
+  search(false, function() {
+    check_allresultslink(false);
+    restart_manager(gManagerWindow, SEARCHABLE_PAGE, function(aManager) {
+      gManagerWindow = aManager;
+      run_next_test();
+    });
+  });
+});
+
+add_test(function() {
+    debugger;
+  info("Searching remotely - more results than cap");
+  Services.prefs.setIntPref(PREF_GETADDONS_MAXRESULTS, 3);
+  search(true, function() {
+    check_allresultslink(true);
+    restart_manager(gManagerWindow, SEARCHABLE_PAGE, function(aManager) {
+      gManagerWindow = aManager;
+      run_next_test();
+    });
+  });
+});
+
+add_test(function() {
+  info("Searching remotely - less results than cap");
+  Services.prefs.setIntPref(PREF_GETADDONS_MAXRESULTS, 200);
+  search(true, function() {
+    check_allresultslink(false);
+    restart_manager(gManagerWindow, SEARCHABLE_PAGE, function(aManager) {
+      gManagerWindow = aManager;
+      run_next_test();
+    });
+  });
+});
+
+add_test(function() {
+  info("Searching remotely - more results than cap");
+  Services.prefs.setIntPref(PREF_GETADDONS_MAXRESULTS, 3);
+  search(true, function() {
+    check_allresultslink(true);
+    run_next_test();
+  });
+});
+
+add_test(function() {
+  info("Switching views");
+  gManagerWindow.loadView("addons://list/extension");
+  wait_for_view_load(gManagerWindow, function() {
+    info("Re-loading previous search");
+    search(true, function() {
+      check_allresultslink(true);
+      run_next_test();
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug586574.js b/toolkit/mozapps/webextensions/test/browser/browser_bug586574.js
new file mode 100644
index 000000000..fb5ebf01b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug586574.js
@@ -0,0 +1,286 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 586574 - Provide way to set a default for automatic updates
+// Bug 710064 - Make the "Update Add-ons Automatically" checkbox state
+//              also depend on the extensions.update.enabled pref
+
+// TEST_PATH=toolkit/mozapps/extensions/test/browser/browser_bug586574.js make -C obj-ff mochitest-browser-chrome
+
+const PREF_UPDATE_ENABLED = "extensions.update.enabled";
+const PREF_AUTOUPDATE_DEFAULT = "extensions.update.autoUpdateDefault";
+
+var gManagerWindow;
+var gProvider;
+
+var gUtilsBtn;
+var gUtilsMenu;
+var gDropdownMenu;
+var gSetDefault;
+var gResetToAutomatic;
+var gResetToManual;
+
+// Make sure we don't accidentally start a background update while the prefs
+// are enabled.
+disableBackgroundUpdateTimer();
+registerCleanupFunction(() => {
+  enableBackgroundUpdateTimer();
+});
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "addon 1",
+    version: "1.0",
+    applyBackgroundUpdates: AddonManager.AUTOUPDATE_DISABLE
+  }]);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+
+    gUtilsBtn = gManagerWindow.document.getElementById("header-utils-btn");
+    gUtilsMenu = gManagerWindow.document.getElementById("utils-menu");
+
+    run_next_test();
+  });
+}
+
+
+function end_test() {
+  close_manager(gManagerWindow, finish);
+}
+
+
+function wait_for_popup(aCallback) {
+  if (gUtilsMenu.state == "open") {
+    aCallback();
+    return;
+  }
+
+  gUtilsMenu.addEventListener("popupshown", function() {
+    gUtilsMenu.removeEventListener("popupshown", arguments.callee, false);
+    info("Utilities menu shown");
+    aCallback();
+  }, false);
+}
+
+function wait_for_hide(aCallback) {
+  if (gUtilsMenu.state == "closed") {
+    aCallback();
+    return;
+  }
+
+  gUtilsMenu.addEventListener("popuphidden", function() {
+    gUtilsMenu.removeEventListener("popuphidden", arguments.callee, false);
+    info("Utilities menu hidden");
+    aCallback();
+  }, false);
+}
+
+add_test(function() {
+  gSetDefault = gManagerWindow.document.getElementById("utils-autoUpdateDefault");
+  gResetToAutomatic = gManagerWindow.document.getElementById("utils-resetAddonUpdatesToAutomatic");
+  gResetToManual = gManagerWindow.document.getElementById("utils-resetAddonUpdatesToManual");
+
+  info("Ensuring default prefs are set to true");
+  Services.prefs.setBoolPref(PREF_UPDATE_ENABLED, true);
+  Services.prefs.setBoolPref(PREF_AUTOUPDATE_DEFAULT, true);
+
+  wait_for_popup(function() {
+    is(gSetDefault.getAttribute("checked"), "true",
+       "#1 Set Default menuitem should be checked");
+    is_element_visible(gResetToAutomatic,
+                       "#1 Reset to Automatic menuitem should be visible");
+    is_element_hidden(gResetToManual,
+                      "#1 Reset to Manual menuitem should be hidden");
+
+    var listener = {
+      onPropertyChanged: function(aAddon, aProperties) {
+        AddonManager.removeAddonListener(listener);
+        is(aAddon.id, gProvider.addons[0].id,
+           "Should get onPropertyChanged event for correct addon");
+        ok(!("applyBackgroundUpdates" in aProperties),
+           "Should have gotten applyBackgroundUpdates in properties array");
+        is(aAddon.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DEFAULT,
+           "Addon.applyBackgroundUpdates should have been reset to default");
+
+        info("Setting Addon.applyBackgroundUpdates back to disabled");
+        aAddon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+
+        wait_for_hide(run_next_test);
+      }
+    };
+    AddonManager.addAddonListener(listener);
+
+    info("Clicking Reset to Automatic menuitem");
+    EventUtils.synthesizeMouseAtCenter(gResetToAutomatic, { }, gManagerWindow);
+  });
+
+  info("Opening utilities menu");
+  EventUtils.synthesizeMouseAtCenter(gUtilsBtn, { }, gManagerWindow);
+});
+
+
+add_test(function() {
+  info("Disabling extensions.update.enabled");
+  Services.prefs.setBoolPref(PREF_UPDATE_ENABLED, false);
+
+  wait_for_popup(function() {
+    isnot(gSetDefault.getAttribute("checked"), "true",
+          "#2 Set Default menuitem should not be checked");
+    is_element_visible(gResetToAutomatic,
+                       "#2 Reset to Automatic menuitem should be visible");
+    is_element_hidden(gResetToManual,
+                      "#2 Reset to Manual menuitem should be hidden");
+
+    wait_for_hide(run_next_test);
+
+    info("Clicking Set Default menuitem to reenable");
+    EventUtils.synthesizeMouseAtCenter(gSetDefault, { }, gManagerWindow);
+  });
+
+  info("Opening utilities menu");
+  EventUtils.synthesizeMouseAtCenter(gUtilsBtn, { }, gManagerWindow);
+});
+
+
+add_test(function() {
+  ok(Services.prefs.getBoolPref(PREF_UPDATE_ENABLED),
+     "extensions.update.enabled should be true after the previous test");
+  ok(Services.prefs.getBoolPref(PREF_AUTOUPDATE_DEFAULT),
+     "extensions.update.autoUpdateDefault should be true after the previous test");
+
+  info("Disabling both extensions.update.enabled and extensions.update.autoUpdateDefault");
+  Services.prefs.setBoolPref(PREF_UPDATE_ENABLED, false);
+  Services.prefs.setBoolPref(PREF_AUTOUPDATE_DEFAULT, false);
+
+  wait_for_popup(function() {
+    isnot(gSetDefault.getAttribute("checked"), "true",
+          "#3 Set Default menuitem should not be checked");
+    is_element_hidden(gResetToAutomatic,
+                      "#3 Reset to automatic menuitem should be hidden");
+    is_element_visible(gResetToManual,
+                       "#3 Reset to manual menuitem should be visible");
+
+    wait_for_hide(run_next_test);
+
+    info("Clicking Set Default menuitem to reenable");
+    EventUtils.synthesizeMouseAtCenter(gSetDefault, { }, gManagerWindow);
+  });
+
+  info("Opening utilities menu");
+  EventUtils.synthesizeMouseAtCenter(gUtilsBtn, { }, gManagerWindow);
+});
+
+
+add_test(function() {
+  ok(Services.prefs.getBoolPref(PREF_UPDATE_ENABLED),
+     "extensions.update.enabled should be true after the previous test");
+  ok(Services.prefs.getBoolPref(PREF_AUTOUPDATE_DEFAULT),
+     "extensions.update.autoUpdateDefault should be true after the previous test");
+
+  info("clicking the button to disable extensions.update.autoUpdateDefault");
+  wait_for_popup(function() {
+    is(gSetDefault.getAttribute("checked"), "true",
+       "#4 Set Default menuitem should be checked");
+    is_element_visible(gResetToAutomatic,
+                       "#4 Reset to Automatic menuitem should be visible");
+    is_element_hidden(gResetToManual,
+                      "#4 Reset to Manual menuitem should be hidden");
+
+    wait_for_hide(run_next_test);
+
+    info("Clicking Set Default menuitem to disable");
+    EventUtils.synthesizeMouseAtCenter(gSetDefault, { }, gManagerWindow);
+  });
+
+  info("Opening utilities menu");
+  EventUtils.synthesizeMouseAtCenter(gUtilsBtn, { }, gManagerWindow);
+});
+
+
+add_test(function() {
+  ok(Services.prefs.getBoolPref(PREF_UPDATE_ENABLED),
+     "extensions.update.enabled should be true after the previous test");
+  is(Services.prefs.getBoolPref(PREF_AUTOUPDATE_DEFAULT), false,
+     "extensions.update.autoUpdateDefault should be false after the previous test");
+
+  wait_for_popup(function() {
+    isnot(gSetDefault.getAttribute("checked"), "true",
+          "#5 Set Default menuitem should not be checked");
+    is_element_hidden(gResetToAutomatic,
+                      "#5 Reset to automatic menuitem should be hidden");
+    is_element_visible(gResetToManual,
+                       "#5 Reset to manual menuitem should be visible");
+
+    var listener = {
+      onPropertyChanged: function(aAddon, aProperties) {
+        AddonManager.removeAddonListener(listener);
+        is(aAddon.id, gProvider.addons[0].id,
+           "Should get onPropertyChanged event for correct addon");
+        ok(!("applyBackgroundUpdates" in aProperties),
+           "Should have gotten applyBackgroundUpdates in properties array");
+        is(aAddon.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DEFAULT,
+           "Addon.applyBackgroundUpdates should have been reset to default");
+
+        info("Setting Addon.applyBackgroundUpdates back to disabled");
+        aAddon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+
+        wait_for_hide(run_next_test);
+      }
+    };
+    AddonManager.addAddonListener(listener);
+
+    info("Clicking Reset to Manual menuitem");
+    EventUtils.synthesizeMouseAtCenter(gResetToManual, { }, gManagerWindow);
+
+  });
+
+  info("Opening utilities menu");
+  EventUtils.synthesizeMouseAtCenter(gUtilsBtn, { }, gManagerWindow);
+});
+
+
+add_test(function() {
+  wait_for_popup(function() {
+    isnot(gSetDefault.getAttribute("checked"), "true",
+          "#6 Set Default menuitem should not be checked");
+    is_element_hidden(gResetToAutomatic,
+                      "#6 Reset to automatic menuitem should be hidden");
+    is_element_visible(gResetToManual,
+                       "#6 Reset to manual menuitem should be visible");
+
+    wait_for_hide(run_next_test);
+
+    info("Clicking Set Default menuitem");
+    EventUtils.synthesizeMouseAtCenter(gSetDefault, { }, gManagerWindow);
+  });
+
+  info("Opening utilities menu");
+  EventUtils.synthesizeMouseAtCenter(gUtilsBtn, { }, gManagerWindow);
+});
+
+
+add_test(function() {
+  wait_for_popup(function() {
+    is(gSetDefault.getAttribute("checked"), "true",
+       "#7 Set Default menuitem should be checked");
+    is_element_visible(gResetToAutomatic,
+                       "#7 Reset to Automatic menuitem should be visible");
+    is_element_hidden(gResetToManual,
+                      "#7 Reset to Manual menuitem should be hidden");
+
+    wait_for_hide(run_next_test);
+
+    gUtilsMenu.hidePopup();
+  });
+
+  info("Opening utilities menu");
+  EventUtils.synthesizeMouseAtCenter(gUtilsBtn, { }, gManagerWindow);
+});
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug587970.js b/toolkit/mozapps/webextensions/test/browser/browser_bug587970.js
new file mode 100644
index 000000000..ef05ba4ea
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug587970.js
@@ -0,0 +1,180 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 587970 - Provide ability "Update all now" within 'Available Updates' screen
+
+var gManagerWindow;
+var gProvider;
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "addon 1",
+    version: "1.0",
+    applyBackgroundUpdates: AddonManager.AUTOUPDATE_DISABLE
+  }, {
+    id: "addon2@tests.mozilla.org",
+    name: "addon 2",
+    version: "2.0",
+    applyBackgroundUpdates: AddonManager.AUTOUPDATE_DISABLE
+  }, {
+    id: "addon3@tests.mozilla.org",
+    name: "addon 3",
+    version: "3.0",
+    applyBackgroundUpdates: AddonManager.AUTOUPDATE_DISABLE
+  }]);
+
+
+  open_manager("addons://updates/available", function(aWindow) {
+    gManagerWindow = aWindow;
+    run_next_test();
+  });
+}
+
+
+function end_test() {
+  close_manager(gManagerWindow, finish);
+}
+
+
+add_test(function() {
+  var list = gManagerWindow.document.getElementById("updates-list");
+  is(list.childNodes.length, 0, "Available updates list should be empty");
+
+  var emptyNotice = gManagerWindow.document.getElementById("empty-availableUpdates-msg");
+  is_element_visible(emptyNotice, "Empty notice should be visible");
+
+  var updateSelected = gManagerWindow.document.getElementById("update-selected-btn");
+  is_element_hidden(updateSelected, "Update Selected button should be hidden");
+
+  info("Adding updates");
+  gProvider.createInstalls([{
+    name: "addon 1",
+    version: "1.1",
+    existingAddon: gProvider.addons[0]
+  }, {
+    name: "addon 2",
+    version: "2.1",
+    existingAddon: gProvider.addons[1]
+  }, {
+    name: "addon 3",
+    version: "3.1",
+    existingAddon: gProvider.addons[2]
+  }]);
+
+  function wait_for_refresh() {
+    if (list.childNodes.length == 3 &&
+        list.childNodes[0].mManualUpdate &&
+        list.childNodes[1].mManualUpdate &&
+        list.childNodes[2].mManualUpdate) {
+      run_next_test();
+    } else {
+      info("Waiting for pane to refresh");
+      setTimeout(wait_for_refresh, 10);
+    }
+  }
+  info("Waiting for pane to refresh");
+  setTimeout(wait_for_refresh, 10);
+});
+
+
+add_test(function() {
+  var list = gManagerWindow.document.getElementById("updates-list");
+  is(list.childNodes.length, 3, "Available updates list should have 2 items");
+
+  var item1 = get_addon_element(gManagerWindow, "addon1@tests.mozilla.org");
+  isnot(item1, null, "Item for addon1@tests.mozilla.org should be in list");
+  var item2 = get_addon_element(gManagerWindow, "addon2@tests.mozilla.org");
+  isnot(item2, null, "Item for addon2@tests.mozilla.org should be in list");
+  var item3 = get_addon_element(gManagerWindow, "addon3@tests.mozilla.org");
+  isnot(item3, null, "Item for addon3@tests.mozilla.org should be in list");
+
+  var emptyNotice = gManagerWindow.document.getElementById("empty-availableUpdates-msg");
+  is_element_hidden(emptyNotice, "Empty notice should be hidden");
+
+  var updateSelected = gManagerWindow.document.getElementById("update-selected-btn");
+  is_element_visible(updateSelected, "Update Selected button should be visible");
+  is(updateSelected.disabled, false, "Update Selected button should be enabled by default");
+
+  is(item1._includeUpdate.checked, true, "Include Update checkbox should be checked by default for addon1");
+  is(item2._includeUpdate.checked, true, "Include Update checkbox should be checked by default for addon2");
+  is(item3._includeUpdate.checked, true, "Include Update checkbox should be checked by default for addon3");
+
+  info("Unchecking Include Update checkbox for addon1");
+  EventUtils.synthesizeMouse(item1._includeUpdate, 2, 2, { }, gManagerWindow);
+  is(item1._includeUpdate.checked, false, "Include Update checkbox should now be be unchecked for addon1");
+  is(updateSelected.disabled, false, "Update Selected button should still be enabled");
+
+  info("Unchecking Include Update checkbox for addon2");
+  EventUtils.synthesizeMouse(item2._includeUpdate, 2, 2, { }, gManagerWindow);
+  is(item2._includeUpdate.checked, false, "Include Update checkbox should now be be unchecked for addon2");
+  is(updateSelected.disabled, false, "Update Selected button should still be enabled");
+
+  info("Unchecking Include Update checkbox for addon3");
+  EventUtils.synthesizeMouse(item3._includeUpdate, 2, 2, { }, gManagerWindow);
+  is(item3._includeUpdate.checked, false, "Include Update checkbox should now be be unchecked for addon3");
+  is(updateSelected.disabled, true, "Update Selected button should now be disabled");
+
+  info("Checking Include Update checkbox for addon2");
+  EventUtils.synthesizeMouse(item2._includeUpdate, 2, 2, { }, gManagerWindow);
+  is(item2._includeUpdate.checked, true, "Include Update checkbox should now be be checked for addon2");
+  is(updateSelected.disabled, false, "Update Selected button should now be enabled");
+
+  info("Checking Include Update checkbox for addon3");
+  EventUtils.synthesizeMouse(item3._includeUpdate, 2, 2, { }, gManagerWindow);
+  is(item3._includeUpdate.checked, true, "Include Update checkbox should now be be checked for addon3");
+  is(updateSelected.disabled, false, "Update Selected button should now be enabled");
+
+  var installCount = 0;
+  var listener = {
+    onDownloadStarted: function(aInstall) {
+      isnot(aInstall.existingAddon.id, "addon1@tests.mozilla.org", "Should not have seen a download start for addon1");
+    },
+
+    onInstallEnded: function(aInstall) {
+      if (++installCount < 2)
+        return;
+
+      gProvider.installs[0].removeTestListener(listener);
+      gProvider.installs[1].removeTestListener(listener);
+      gProvider.installs[2].removeTestListener(listener);
+
+      // Installs are started synchronously so by the time an executeSoon is
+      // executed all installs that are going to start will have started
+      executeSoon(function() {
+        is(gProvider.installs[0].state, AddonManager.STATE_AVAILABLE, "addon1 should not have been upgraded");
+        is(gProvider.installs[1].state, AddonManager.STATE_INSTALLED, "addon2 should have been upgraded");
+        is(gProvider.installs[2].state, AddonManager.STATE_INSTALLED, "addon3 should have been upgraded");
+
+        run_next_test();
+      });
+    }
+  }
+  gProvider.installs[0].addTestListener(listener);
+  gProvider.installs[1].addTestListener(listener);
+  gProvider.installs[2].addTestListener(listener);
+  info("Clicking Update Selected button");
+  EventUtils.synthesizeMouseAtCenter(updateSelected, { }, gManagerWindow);
+});
+
+
+add_test(function() {
+  var updateSelected = gManagerWindow.document.getElementById("update-selected-btn");
+  is(updateSelected.disabled, true, "Update Selected button should be disabled");
+
+  var item1 = get_addon_element(gManagerWindow, "addon1@tests.mozilla.org");
+  isnot(item1, null, "Item for addon1@tests.mozilla.org should be in list");
+  is(item1._includeUpdate.checked, false, "Include Update checkbox should not have changed");
+
+  info("Checking Include Update checkbox for addon1");
+  EventUtils.synthesizeMouse(item1._includeUpdate, 2, 2, { }, gManagerWindow);
+  is(item1._includeUpdate.checked, true, "Include Update checkbox should now be be checked for addon1");
+  is(updateSelected.disabled, false, "Update Selected button should now not be disabled");
+
+  run_next_test();
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug590347.js b/toolkit/mozapps/webextensions/test/browser/browser_bug590347.js
new file mode 100644
index 000000000..f805f0e19
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug590347.js
@@ -0,0 +1,121 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 590347
+// Tests if softblock notifications are exposed in preference to incompatible
+// notifications when compatibility checking is disabled
+
+var gProvider;
+var gManagerWindow;
+var gCategoryUtilities;
+
+var gApp = document.getElementById("bundle_brand").getString("brandShortName");
+var gVersion = Services.appinfo.version;
+
+// Opens the details view of an add-on
+function open_details(aId, aType, aCallback) {
+  requestLongerTimeout(2);
+
+  gCategoryUtilities.openType(aType, function() {
+    var list = gManagerWindow.document.getElementById("addon-list");
+    var item = list.firstChild;
+    while (item) {
+      if ("mAddon" in item && item.mAddon.id == aId) {
+        list.ensureElementIsVisible(item);
+        EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
+        EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
+        wait_for_view_load(gManagerWindow, aCallback);
+        return;
+      }
+      item = item.nextSibling;
+    }
+    ok(false, "Should have found the add-on in the list");
+  });
+}
+
+function get_list_view_warning_node() {
+  let item = gManagerWindow.document.getElementById("addon-list").firstChild;
+  let found = false;
+  while (item) {
+    if (item.mAddon.name == "Test add-on") {
+      found = true;
+      break;
+    }
+    item = item.nextSibling;
+  }
+  ok(found, "Test add-on node should have been found.");
+  return item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "warning");
+}
+
+function get_detail_view_warning_node(aManagerWindow) {
+  if (aManagerWindow)
+    return aManagerWindow.document.getElementById("detail-warning");
+  return undefined;
+}
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "Test add-on",
+    description: "A test add-on",
+    isCompatible: false,
+    blocklistState: Ci.nsIBlocklistService.STATE_SOFTBLOCKED,
+  }]);
+
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+// Check with compatibility checking enabled
+add_test(function() {
+  gCategoryUtilities.openType("extension", function() {
+    Services.prefs.setBoolPref(PREF_CHECK_COMPATIBILITY, true);
+    let warning_node = get_list_view_warning_node();
+    is_element_visible(warning_node, "Warning message should be visible");
+    is(warning_node.textContent, "Test add-on is incompatible with " + gApp + " " + gVersion + ".", "Warning message should be correct");
+    run_next_test();
+  });
+});
+
+add_test(function() {
+  open_details("addon1@tests.mozilla.org", "extension", function() {
+    let warning_node = get_detail_view_warning_node(gManagerWindow);
+    is_element_visible(warning_node, "Warning message should be visible");
+    is(warning_node.textContent, "Test add-on is incompatible with " + gApp + " " + gVersion + ".", "Warning message should be correct");
+    Services.prefs.setBoolPref(PREF_CHECK_COMPATIBILITY, false);
+    run_next_test();
+  });
+});
+
+// Check with compatibility checking disabled
+add_test(function() {
+  gCategoryUtilities.openType("extension", function() {
+    let warning_node = get_list_view_warning_node();
+    is_element_visible(warning_node, "Warning message should be visible");
+    is(warning_node.textContent, "Test add-on is known to cause security or stability issues.", "Warning message should be correct");
+    run_next_test();
+  });
+});
+
+add_test(function() {
+  open_details("addon1@tests.mozilla.org", "extension", function() {
+    let warning_node = get_detail_view_warning_node(gManagerWindow);
+    is_element_visible(warning_node, "Warning message should be visible");
+    is(warning_node.textContent, "Test add-on is known to cause security or stability issues.", "Warning message should be correct");
+    run_next_test();
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug591465.js b/toolkit/mozapps/webextensions/test/browser/browser_bug591465.js
new file mode 100644
index 000000000..f759ffc1f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug591465.js
@@ -0,0 +1,512 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 591465 - Context menu of add-ons miss context related state change entries
+
+
+var tempScope = {};
+Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm", tempScope);
+var LightweightThemeManager = tempScope.LightweightThemeManager;
+
+
+const PREF_GETADDONS_MAXRESULTS = "extensions.getAddons.maxResults";
+const PREF_GETADDONS_GETSEARCHRESULTS = "extensions.getAddons.search.url";
+const SEARCH_URL = TESTROOT + "browser_bug591465.xml";
+const SEARCH_QUERY = "SEARCH";
+
+var gManagerWindow;
+var gProvider;
+var gContextMenu;
+var gLWTheme = {
+                id: "4",
+                version: "1",
+                name: "Bling",
+                description: "SO MUCH BLING!",
+                author: "Pixel Pusher",
+                homepageURL: "http://mochi.test:8888/data/index.html",
+                headerURL: "http://mochi.test:8888/data/header.png",
+                footerURL: "http://mochi.test:8888/data/footer.png",
+                previewURL: "http://mochi.test:8888/data/preview.png",
+                iconURL: "http://mochi.test:8888/data/icon.png"
+              };
+
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "addon 1",
+    version: "1.0"
+  }, {
+    id: "addon2@tests.mozilla.org",
+    name: "addon 2",
+    version: "1.0",
+    _userDisabled: true
+  }, {
+    id: "theme1@tests.mozilla.org",
+    name: "theme 1",
+    version: "1.0",
+    type: "theme"
+  }, {
+    id: "theme2@tests.mozilla.org",
+    name: "theme 2",
+    version: "1.0",
+    type: "theme",
+    _userDisabled: true
+   }, {
+    id: "theme3@tests.mozilla.org",
+    name: "theme 3",
+    version: "1.0",
+    type: "theme",
+    permissions: 0
+  }]);
+
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gContextMenu = aWindow.document.getElementById("addonitem-popup");
+    run_next_test();
+  });
+}
+
+
+function end_test() {
+  close_manager(gManagerWindow, finish);
+}
+
+
+function check_contextmenu(aIsTheme, aIsEnabled, aIsRemote, aIsDetails, aIsSingleItemCase) {
+  if (aIsTheme || aIsEnabled || aIsRemote)
+    is_element_hidden(gManagerWindow.document.getElementById("menuitem_enableItem"),
+                       "'Enable' should be hidden");
+  else
+    is_element_visible(gManagerWindow.document.getElementById("menuitem_enableItem"),
+                       "'Enable' should be visible");
+
+  if (aIsTheme || !aIsEnabled || aIsRemote)
+    is_element_hidden(gManagerWindow.document.getElementById("menuitem_disableItem"),
+                       "'Disable' should be hidden");
+  else
+    is_element_visible(gManagerWindow.document.getElementById("menuitem_disableItem"),
+                       "'Disable' should be visible");
+
+  if (!aIsTheme || aIsEnabled || aIsRemote || aIsSingleItemCase)
+    is_element_hidden(gManagerWindow.document.getElementById("menuitem_enableTheme"),
+                       "'Wear Theme' should be hidden");
+  else
+    is_element_visible(gManagerWindow.document.getElementById("menuitem_enableTheme"),
+                       "'Wear Theme' should be visible");
+
+  if (!aIsTheme || !aIsEnabled || aIsRemote || aIsSingleItemCase)
+    is_element_hidden(gManagerWindow.document.getElementById("menuitem_disableTheme"),
+                       "'Stop Wearing Theme' should be hidden");
+  else
+    is_element_visible(gManagerWindow.document.getElementById("menuitem_disableTheme"),
+                       "'Stop Wearing Theme' should be visible");
+
+  if (aIsRemote)
+    is_element_visible(gManagerWindow.document.getElementById("menuitem_installItem"),
+                       "'Install' should be visible");
+  else
+    is_element_hidden(gManagerWindow.document.getElementById("menuitem_installItem"),
+                       "'Install' should be hidden");
+
+  if (aIsDetails)
+    is_element_hidden(gManagerWindow.document.getElementById("menuitem_showDetails"),
+                       "'Show More Information' should be hidden in details view");
+  else
+    is_element_visible(gManagerWindow.document.getElementById("menuitem_showDetails"),
+                       "'Show More Information' should be visible in list view");
+
+  if (aIsSingleItemCase)
+    is_element_hidden(gManagerWindow.document.getElementById("addonitem-menuseparator"),
+                       "Menu separator should be hidden with only one menu item");
+  else
+    is_element_visible(gManagerWindow.document.getElementById("addonitem-menuseparator"),
+                       "Menu separator should be visible with multiple menu items");
+
+}
+
+
+add_test(function() {
+  var el = get_addon_element(gManagerWindow, "addon1@tests.mozilla.org");
+  isnot(el, null, "Should have found addon element");
+
+  gContextMenu.addEventListener("popupshown", function() {
+    gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+    check_contextmenu(false, true, false, false, false);
+
+    gContextMenu.hidePopup();
+    run_next_test();
+  }, false);
+
+  info("Opening context menu on enabled extension item");
+  el.parentNode.ensureElementIsVisible(el);
+  EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+  EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+});
+
+add_test(function() {
+  var el = get_addon_element(gManagerWindow, "addon1@tests.mozilla.org");
+  isnot(el, null, "Should have found addon element");
+  el.mAddon.userDisabled = true;
+
+  gContextMenu.addEventListener("popupshown", function() {
+    gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+    check_contextmenu(false, false, false, false, false);
+
+    gContextMenu.hidePopup();
+    run_next_test();
+  }, false);
+
+  info("Opening context menu on newly disabled extension item");
+  el.parentNode.ensureElementIsVisible(el);
+  EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+  EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+});
+
+add_test(function() {
+  var el = get_addon_element(gManagerWindow, "addon1@tests.mozilla.org");
+  isnot(el, null, "Should have found addon element");
+  el.mAddon.userDisabled = false;
+
+  gContextMenu.addEventListener("popupshown", function() {
+    gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+    check_contextmenu(false, true, false, false, false);
+
+    gContextMenu.hidePopup();
+    run_next_test();
+  }, false);
+
+  info("Opening context menu on newly enabled extension item");
+  el.parentNode.ensureElementIsVisible(el);
+  EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+  EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+});
+
+add_test(function() {
+  var el = get_addon_element(gManagerWindow, "addon2@tests.mozilla.org");
+
+  gContextMenu.addEventListener("popupshown", function() {
+    gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+    check_contextmenu(false, false, false, false, false);
+
+    gContextMenu.hidePopup();
+    run_next_test();
+  }, false);
+
+  info("Opening context menu on disabled extension item");
+  el.parentNode.ensureElementIsVisible(el);
+  EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+  EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+});
+
+
+add_test(function() {
+  gManagerWindow.loadView("addons://list/theme");
+  wait_for_view_load(gManagerWindow, function() {
+    var el = get_addon_element(gManagerWindow, "theme1@tests.mozilla.org");
+
+    gContextMenu.addEventListener("popupshown", function() {
+      gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+      check_contextmenu(true, true, false, false, false);
+
+      gContextMenu.hidePopup();
+      run_next_test();
+    }, false);
+
+    info("Opening context menu on enabled theme item");
+    el.parentNode.ensureElementIsVisible(el);
+    EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+    EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+  });
+});
+
+
+add_test(function() {
+  var el = get_addon_element(gManagerWindow, "theme2@tests.mozilla.org");
+
+  gContextMenu.addEventListener("popupshown", function() {
+    gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+    check_contextmenu(true, false, false, false, false);
+
+    gContextMenu.hidePopup();
+    run_next_test();
+  }, false);
+
+  info("Opening context menu on disabled theme item");
+  el.parentNode.ensureElementIsVisible(el);
+  EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+  EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+});
+
+
+add_test(function() {
+  LightweightThemeManager.currentTheme = gLWTheme;
+
+  var el = get_addon_element(gManagerWindow, "4@personas.mozilla.org");
+
+  gContextMenu.addEventListener("popupshown", function() {
+    gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+    check_contextmenu(true, true, false, false, false);
+
+    gContextMenu.hidePopup();
+    run_next_test();
+  }, false);
+
+  info("Opening context menu on enabled LW theme item");
+  el.parentNode.ensureElementIsVisible(el);
+  EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+  EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+});
+
+
+add_test(function() {
+  LightweightThemeManager.currentTheme = null;
+
+  var el = get_addon_element(gManagerWindow, "4@personas.mozilla.org");
+
+  gContextMenu.addEventListener("popupshown", function() {
+    gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+    check_contextmenu(true, false, false, false, false);
+
+    gContextMenu.hidePopup();
+    run_next_test();
+  }, false);
+
+  info("Opening context menu on disabled LW theme item");
+  el.parentNode.ensureElementIsVisible(el);
+  EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+  EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+});
+
+
+add_test(function() {
+  LightweightThemeManager.currentTheme = gLWTheme;
+
+  gManagerWindow.loadView("addons://detail/4@personas.mozilla.org");
+  wait_for_view_load(gManagerWindow, function() {
+
+    gContextMenu.addEventListener("popupshown", function() {
+      gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+      check_contextmenu(true, true, false, true, false);
+
+      gContextMenu.hidePopup();
+      run_next_test();
+    }, false);
+
+    info("Opening context menu on enabled LW theme, in detail view");
+    var el = gManagerWindow.document.querySelector("#detail-view .detail-view-container");
+    EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+    EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+  });
+});
+
+
+add_test(function() {
+  LightweightThemeManager.currentTheme = null;
+
+  gManagerWindow.loadView("addons://detail/4@personas.mozilla.org");
+  wait_for_view_load(gManagerWindow, function() {
+
+    gContextMenu.addEventListener("popupshown", function() {
+      gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+      check_contextmenu(true, false, false, true, false);
+
+      gContextMenu.hidePopup();
+
+      AddonManager.getAddonByID("4@personas.mozilla.org", function(aAddon) {
+        aAddon.uninstall();
+        run_next_test();
+      });
+    }, false);
+
+    info("Opening context menu on disabled LW theme, in detail view");
+    var el = gManagerWindow.document.querySelector("#detail-view .detail-view-container");
+    EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+    EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+  });
+});
+
+
+add_test(function() {
+  gManagerWindow.loadView("addons://detail/addon1@tests.mozilla.org");
+  wait_for_view_load(gManagerWindow, function() {
+
+    gContextMenu.addEventListener("popupshown", function() {
+      gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+      check_contextmenu(false, true, false, true, false);
+
+      gContextMenu.hidePopup();
+      run_next_test();
+    }, false);
+
+    info("Opening context menu on enabled extension, in detail view");
+    var el = gManagerWindow.document.querySelector("#detail-view .detail-view-container");
+    EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+    EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+  });
+});
+
+
+add_test(function() {
+  gManagerWindow.loadView("addons://detail/addon2@tests.mozilla.org");
+  wait_for_view_load(gManagerWindow, function() {
+
+    gContextMenu.addEventListener("popupshown", function() {
+      gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+      check_contextmenu(false, false, false, true, false);
+
+      gContextMenu.hidePopup();
+      run_next_test();
+    }, false);
+
+    info("Opening context menu on disabled extension, in detail view");
+    var el = gManagerWindow.document.querySelector("#detail-view .detail-view-container");
+    EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+    EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+  });
+});
+
+
+add_test(function() {
+  gManagerWindow.loadView("addons://detail/theme1@tests.mozilla.org");
+  wait_for_view_load(gManagerWindow, function() {
+
+    gContextMenu.addEventListener("popupshown", function() {
+      gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+      check_contextmenu(true, true, false, true, false);
+
+      gContextMenu.hidePopup();
+      run_next_test();
+    }, false);
+
+    info("Opening context menu on enabled theme, in detail view");
+    var el = gManagerWindow.document.querySelector("#detail-view .detail-view-container");
+    EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+    EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+  });
+});
+
+
+add_test(function() {
+  gManagerWindow.loadView("addons://detail/theme2@tests.mozilla.org");
+  wait_for_view_load(gManagerWindow, function() {
+
+    gContextMenu.addEventListener("popupshown", function() {
+      gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+      check_contextmenu(true, false, false, true, false);
+
+      gContextMenu.hidePopup();
+      run_next_test();
+    }, false);
+
+    info("Opening context menu on disabled theme, in detail view");
+    var el = gManagerWindow.document.querySelector("#detail-view .detail-view-container");
+    EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+    EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+  });
+});
+
+add_test(function() {
+  gManagerWindow.loadView("addons://detail/theme3@tests.mozilla.org");
+  wait_for_view_load(gManagerWindow, function() {
+
+    gContextMenu.addEventListener("popupshown", function() {
+      gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+      check_contextmenu(true, true, false, true, true);
+
+      gContextMenu.hidePopup();
+      run_next_test();
+    }, false);
+
+    info("Opening context menu with single menu item on enabled theme, in detail view");
+    var el = gManagerWindow.document.querySelector("#detail-view .detail-view-container");
+    EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+    EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+  });
+});
+
+add_test(function() {
+  info("Searching for remote addons");
+
+  Services.prefs.setCharPref(PREF_GETADDONS_GETSEARCHRESULTS, SEARCH_URL);
+  Services.prefs.setIntPref(PREF_SEARCH_MAXRESULTS, 15);
+
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  searchBox.value = SEARCH_QUERY;
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    var filter = gManagerWindow.document.getElementById("search-filter-remote");
+    EventUtils.synthesizeMouseAtCenter(filter, { }, gManagerWindow);
+    executeSoon(function() {
+
+      var el = get_addon_element(gManagerWindow, "remote1@tests.mozilla.org");
+
+      gContextMenu.addEventListener("popupshown", function() {
+        gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+        check_contextmenu(false, false, true, false, false);
+
+        gContextMenu.hidePopup();
+        run_next_test();
+      }, false);
+
+      info("Opening context menu on remote extension item");
+      el.parentNode.ensureElementIsVisible(el);
+      EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+      EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+
+    });
+  });
+});
+
+
+add_test(function() {
+  gManagerWindow.loadView("addons://detail/remote1@tests.mozilla.org");
+  wait_for_view_load(gManagerWindow, function() {
+
+    gContextMenu.addEventListener("popupshown", function() {
+      gContextMenu.removeEventListener("popupshown", arguments.callee, false);
+
+      check_contextmenu(false, false, true, true, false);
+
+      gContextMenu.hidePopup();
+
+      // Delete the created install
+      AddonManager.getAllInstalls(function(aInstalls) {
+        is(aInstalls.length, 1, "Should be one available install");
+        aInstalls[0].cancel();
+
+        run_next_test();
+      });
+    }, false);
+
+    info("Opening context menu on remote extension, in detail view");
+    var el = gManagerWindow.document.querySelector("#detail-view .detail-view-container");
+    EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+    EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug591465.xml b/toolkit/mozapps/webextensions/test/browser/browser_bug591465.xml
new file mode 100644
index 000000000..9c2e102e7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug591465.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="100">
+  <addon>
+    <name>MAGICAL SEARCH RESULT</name>
+    <type id='1'>Extension</type>
+    <guid>remote1@tests.mozilla.org</guid>
+    <version>3.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test summary - SEARCH SEARCH</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="2">http://example.com/browser/toolkit/mozapps/extensions/test/browser/addons/browser_searching.xpi</install>
+  </addon>
+</searchresults>
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug591663.js b/toolkit/mozapps/webextensions/test/browser/browser_bug591663.js
new file mode 100644
index 000000000..4a4f735af
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug591663.js
@@ -0,0 +1,161 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test that the empty notice in the list view disappears as it should
+
+// Don't use a standard list view (e.g. "extension") to ensure that the list is
+// initially empty. Don't need to worry about the list of categories displayed
+// since only the list view itself is tested.
+var VIEW_ID = "addons://list/mock-addon";
+
+var LIST_ID = "addon-list";
+var EMPTY_ID = "addon-list-empty";
+
+var gManagerWindow;
+var gProvider;
+var gItem;
+
+var gInstallProperties = {
+  name: "Bug 591663 Mock Install",
+  type: "mock-addon"
+};
+var gAddonProperties = {
+  id: "test1@tests.mozilla.org",
+  name: "Bug 591663 Mock Add-on",
+  type: "mock-addon"
+};
+var gExtensionProperties = {
+  name: "Bug 591663 Extension Install",
+  type: "extension"
+};
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider(true, [{
+    id: "mock-addon",
+    name: "Mock Add-ons",
+    uiPriority: 4500,
+    flags: AddonManager.TYPE_UI_VIEW_LIST
+  }]);
+
+  open_manager(VIEW_ID, function(aWindow) {
+    gManagerWindow = aWindow;
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, finish);
+}
+
+/**
+ * Check that the list view is as expected
+ *
+ * @param  aItem
+ *         The expected item in the list, or null if list should be empty
+ */
+function check_list(aItem) {
+  // Check state of the empty notice
+  let emptyNotice = gManagerWindow.document.getElementById(EMPTY_ID);
+  ok(emptyNotice != null, "Should have found the empty notice");
+  is(!emptyNotice.hidden, (aItem == null), "Empty notice should be showing if list empty");
+
+  // Check the children of the list
+  let list = gManagerWindow.document.getElementById(LIST_ID);
+  is(list.childNodes.length, aItem ? 1 : 0, "Should get expected number of items in list");
+  if (aItem != null) {
+    let itemName = list.firstChild.getAttribute("name");
+    is(itemName, aItem.name, "List item should have correct name");
+  }
+}
+
+
+// Test that the empty notice is showing and no items are showing in list
+add_test(function() {
+  check_list(null);
+  run_next_test();
+});
+
+// Test that a new, non-active, install does not affect the list view
+add_test(function() {
+  gItem = gProvider.createInstalls([gInstallProperties])[0];
+  check_list(null);
+  run_next_test();
+});
+
+// Test that onInstallStarted properly hides empty notice and adds install to list
+add_test(function() {
+  gItem.addTestListener({
+    onDownloadStarted: function() {
+      // Install type unknown until download complete
+      check_list(null);
+    },
+    onInstallStarted: function() {
+      check_list(gItem);
+    },
+    onInstallEnded: function() {
+      check_list(gItem);
+      run_next_test();
+    }
+  });
+
+  gItem.install();
+});
+
+// Test that restarting the manager does not change list
+add_test(function() {
+  restart_manager(gManagerWindow, VIEW_ID, function(aManagerWindow) {
+    gManagerWindow = aManagerWindow;
+    check_list(gItem);
+    run_next_test();
+  });
+});
+
+// Test that onInstallCancelled removes install and shows empty notice
+add_test(function() {
+  gItem.cancel();
+  gItem = null;
+  check_list(null);
+  run_next_test();
+});
+
+// Test that add-ons of a different type do not show up in the list view
+add_test(function() {
+  let extension = gProvider.createInstalls([gExtensionProperties])[0];
+  check_list(null);
+
+  extension.addTestListener({
+    onDownloadStarted: function() {
+      check_list(null);
+    },
+    onInstallStarted: function() {
+      check_list(null);
+    },
+    onInstallEnded: function() {
+      check_list(null);
+      extension.cancel();
+      run_next_test();
+    }
+  });
+
+  extension.install();
+});
+
+// Test that onExternalInstall properly hides empty notice and adds install to list
+add_test(function() {
+  gItem = gProvider.createAddons([gAddonProperties])[0];
+  check_list(gItem);
+  run_next_test();
+});
+
+// Test that restarting the manager does not change list
+add_test(function() {
+  restart_manager(gManagerWindow, VIEW_ID, function(aManagerWindow) {
+    gManagerWindow = aManagerWindow;
+    check_list(gItem);
+    run_next_test();
+  });
+});
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug593535.js b/toolkit/mozapps/webextensions/test/browser/browser_bug593535.js
new file mode 100644
index 000000000..fd23d0036
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug593535.js
@@ -0,0 +1,119 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 593535 - Failure to download extension causes about:addons to list the
+// addon with no way to restart the download
+
+const PREF_GETADDONS_GETSEARCHRESULTS = "extensions.getAddons.search.url";
+const SEARCH_URL = TESTROOT + "browser_bug593535.xml";
+const QUERY = "NOTFOUND";
+
+var gProvider;
+var gManagerWindow;
+
+function test() {
+  waitForExplicitFinish();
+
+  // Turn on searching for this test
+  Services.prefs.setIntPref(PREF_SEARCH_MAXRESULTS, 15);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    AddonManager.getAllInstalls(function(aInstallsList) {
+      for (var install of aInstallsList) {
+        var sourceURI = install.sourceURI.spec;
+        if (sourceURI.match(/^http:\/\/example\.com\/(.+)\.xpi$/) != null)
+          install.cancel();
+      }
+
+      finish();
+    });
+  });
+}
+
+function search(aQuery, aCallback) {
+  // Point search to the correct xml test file
+  Services.prefs.setCharPref(PREF_GETADDONS_GETSEARCHRESULTS, SEARCH_URL);
+
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  searchBox.value = aQuery;
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    var remoteFilter = gManagerWindow.document.getElementById("search-filter-remote");
+    EventUtils.synthesizeMouseAtCenter(remoteFilter, { }, gManagerWindow);
+
+    aCallback();
+  });
+}
+
+function get_addon_item(aName) {
+  var id = aName + "@tests.mozilla.org";
+  var list = gManagerWindow.document.getElementById("search-list");
+  var rows = list.getElementsByTagName("richlistitem");
+  for (let row of rows) {
+    if (row.mAddon && row.mAddon.id == id)
+      return row;
+  }
+
+  return null;
+}
+
+function get_install_button(aItem) {
+  isnot(aItem, null, "Item should not be null when checking state of install button");
+  var installStatus = getAnonymousElementByAttribute(aItem, "anonid", "install-status");
+  return getAnonymousElementByAttribute(installStatus, "anonid", "install-remote-btn");
+}
+
+
+function getAnonymousElementByAttribute(aElement, aName, aValue) {
+  return gManagerWindow.document.getAnonymousElementByAttribute(aElement,
+                                                                aName,
+                                                                aValue);
+}
+
+
+
+// Tests that a failed install for a remote add-on will ask to retry the install
+add_test(function() {
+  var remoteItem;
+
+  var listener = {
+    onDownloadFailed: function(aInstall) {
+      aInstall.removeListener(this);
+      ok(true, "Install failed as expected");
+
+      executeSoon(function() {
+        is(remoteItem.getAttribute("notification"), "warning", "Item should have notification attribute set to 'warning'");
+        is_element_visible(remoteItem._warning, "Warning text should be visible");
+        is(remoteItem._warning.textContent, "There was an error downloading NOTFOUND.", "Warning should show correct message");
+        is_element_visible(remoteItem._warningLink, "Retry button should be visible");
+        run_next_test();
+      });
+    },
+
+    onInstallEnded: function() {
+      ok(false, "Install should have failed");
+    }
+  }
+
+  search(QUERY, function() {
+    var list = gManagerWindow.document.getElementById("search-list");
+    remoteItem = get_addon_item("notfound1");
+    list.ensureElementIsVisible(remoteItem);
+
+    remoteItem.mAddon.install.addListener(listener);
+
+    var installBtn = get_install_button(remoteItem);
+    EventUtils.synthesizeMouseAtCenter(installBtn, { }, gManagerWindow);
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug593535.xml b/toolkit/mozapps/webextensions/test/browser/browser_bug593535.xml
new file mode 100644
index 000000000..411d9f383
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug593535.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="100">
+  <addon>
+    <name>NOTFOUND</name>
+    <type id='1'>Extension</type>
+    <guid>notfound1@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Install file not found - NOTFOUND</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="1">http://example.com/file_not_found.xpi</install>
+  </addon>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug596336.js b/toolkit/mozapps/webextensions/test/browser/browser_bug596336.js
new file mode 100644
index 000000000..ec32e376f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug596336.js
@@ -0,0 +1,156 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that upgrading bootstrapped add-ons behaves correctly while the
+// manager is open
+
+var gManagerWindow;
+var gCategoryUtilities;
+
+add_task(function* test() {
+  waitForExplicitFinish();
+
+  gManagerWindow = yield open_manager("addons://list/extension");
+  gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+});
+
+function get_list_item_count() {
+  return get_test_items_in_list(gManagerWindow).length;
+}
+
+function get_node(parent, anonid) {
+  return parent.ownerDocument.getAnonymousElementByAttribute(parent, "anonid", anonid);
+}
+
+function get_class_node(parent, cls) {
+  return parent.ownerDocument.getAnonymousElementByAttribute(parent, "class", cls);
+}
+
+function install_addon(aXpi) {
+  return new Promise(resolve => {
+    AddonManager.getInstallForURL(TESTROOT + "addons/" + aXpi + ".xpi",
+                                  function(aInstall) {
+      aInstall.addListener({
+        onInstallEnded: function(aInstall) {
+          resolve();
+        }
+      });
+      aInstall.install();
+    }, "application/x-xpinstall");
+  });
+}
+
+var check_addon = Task.async(function*(aAddon, aVersion) {
+  is(get_list_item_count(), 1, "Should be one item in the list");
+  is(aAddon.version, aVersion, "Add-on should have the right version");
+
+  let item = get_addon_element(gManagerWindow, "bug596336-1@tests.mozilla.org");
+  ok(!!item, "Should see the add-on in the list");
+
+  // Force XBL to apply
+  item.clientTop;
+
+  let { version } = yield get_tooltip_info(item);
+  is(version, aVersion, "Version should be correct");
+
+  if (aAddon.userDisabled)
+    is_element_visible(get_class_node(item, "disabled-postfix"), "Disabled postfix should be hidden");
+  else
+    is_element_hidden(get_class_node(item, "disabled-postfix"), "Disabled postfix should be hidden");
+});
+
+// Install version 1 then upgrade to version 2 with the manager open
+add_task(function*() {
+  yield install_addon("browser_bug596336_1");
+  let [aAddon] = yield promiseAddonsByIDs(["bug596336-1@tests.mozilla.org"]);
+  yield check_addon(aAddon, "1.0");
+  ok(!aAddon.userDisabled, "Add-on should not be disabled");
+
+  yield install_addon("browser_bug596336_2");
+  [aAddon] = yield promiseAddonsByIDs(["bug596336-1@tests.mozilla.org"]);
+  yield check_addon(aAddon, "2.0");
+  ok(!aAddon.userDisabled, "Add-on should not be disabled");
+
+  aAddon.uninstall();
+
+  is(get_list_item_count(), 0, "Should be no items in the list");
+});
+
+// Install version 1 mark it as disabled then upgrade to version 2 with the
+// manager open
+add_task(function*() {
+  yield install_addon("browser_bug596336_1");
+  let [aAddon] = yield promiseAddonsByIDs(["bug596336-1@tests.mozilla.org"]);
+  aAddon.userDisabled = true;
+  yield check_addon(aAddon, "1.0");
+  ok(aAddon.userDisabled, "Add-on should be disabled");
+
+  yield install_addon("browser_bug596336_2");
+  [aAddon] = yield promiseAddonsByIDs(["bug596336-1@tests.mozilla.org"]);
+  yield check_addon(aAddon, "2.0");
+  ok(aAddon.userDisabled, "Add-on should be disabled");
+
+  aAddon.uninstall();
+
+  is(get_list_item_count(), 0, "Should be no items in the list");
+});
+
+// Install version 1 click the remove button and then upgrade to version 2 with
+// the manager open
+add_task(function*() {
+  yield install_addon("browser_bug596336_1");
+  let [aAddon] = yield promiseAddonsByIDs(["bug596336-1@tests.mozilla.org"]);
+  yield check_addon(aAddon, "1.0");
+  ok(!aAddon.userDisabled, "Add-on should not be disabled");
+
+  let item = get_addon_element(gManagerWindow, "bug596336-1@tests.mozilla.org");
+  EventUtils.synthesizeMouseAtCenter(get_node(item, "remove-btn"), { }, gManagerWindow);
+
+  // Force XBL to apply
+  item.clientTop;
+
+  ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+  is_element_visible(get_class_node(item, "pending"), "Pending message should be visible");
+
+  yield install_addon("browser_bug596336_2");
+  [aAddon] = yield promiseAddonsByIDs(["bug596336-1@tests.mozilla.org"]);
+  yield check_addon(aAddon, "2.0");
+  ok(!aAddon.userDisabled, "Add-on should not be disabled");
+
+  aAddon.uninstall();
+
+  is(get_list_item_count(), 0, "Should be no items in the list");
+});
+
+// Install version 1, disable it, click the remove button and then upgrade to
+// version 2 with the manager open
+add_task(function*() {
+  yield install_addon("browser_bug596336_1");
+  let [aAddon] = yield promiseAddonsByIDs(["bug596336-1@tests.mozilla.org"]);
+  aAddon.userDisabled = true;
+  yield check_addon(aAddon, "1.0");
+  ok(aAddon.userDisabled, "Add-on should be disabled");
+
+  let item = get_addon_element(gManagerWindow, "bug596336-1@tests.mozilla.org");
+  EventUtils.synthesizeMouseAtCenter(get_node(item, "remove-btn"), { }, gManagerWindow);
+
+  // Force XBL to apply
+  item.clientTop;
+
+  ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+  is_element_visible(get_class_node(item, "pending"), "Pending message should be visible");
+
+  yield install_addon("browser_bug596336_2");
+  [aAddon] = yield promiseAddonsByIDs(["bug596336-1@tests.mozilla.org"]);
+  yield check_addon(aAddon, "2.0");
+  ok(aAddon.userDisabled, "Add-on should be disabled");
+
+  aAddon.uninstall();
+
+  is(get_list_item_count(), 0, "Should be no items in the list");
+});
+
+add_task(function end_test() {
+  close_manager(gManagerWindow, finish);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug608316.js b/toolkit/mozapps/webextensions/test/browser/browser_bug608316.js
new file mode 100644
index 000000000..72bb61f49
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug608316.js
@@ -0,0 +1,65 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 608316 - Test that cancelling an uninstall during the onUninstalling
+// event doesn't confuse the UI
+
+var gProvider;
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "addon 1",
+    version: "1.0"
+  }]);
+
+  run_next_test();
+}
+
+
+function end_test() {
+  finish();
+}
+
+
+add_test(function() {
+  var sawUninstall = false;
+  var listener = {
+    onUninstalling: function(aAddon, aRestartRequired) {
+      if (aAddon.id != "addon1@tests.mozilla.org")
+        return;
+      sawUninstall = true;
+      aAddon.cancelUninstall();
+    }
+  }
+
+  // Important to add this before opening the UI so it gets its events first
+  AddonManager.addAddonListener(listener);
+  registerCleanupFunction(function() {
+    AddonManager.removeAddonListener(listener);
+  });
+
+  open_manager("addons://list/extension", function(aManager) {
+    var addon = get_addon_element(aManager, "addon1@tests.mozilla.org");
+    isnot(addon, null, "Should see the add-on in the list");
+
+    var removeBtn = aManager.document.getAnonymousElementByAttribute(addon, "anonid", "remove-btn");
+    EventUtils.synthesizeMouseAtCenter(removeBtn, { }, aManager);
+
+    ok(sawUninstall, "Should have seen the uninstall event");
+    sawUninstall = false;
+
+    is(addon.getAttribute("pending"), "", "Add-on should not be uninstalling");
+
+    close_manager(aManager, function() {
+      ok(!sawUninstall, "Should not have seen another uninstall event");
+
+      run_next_test();
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug610764.js b/toolkit/mozapps/webextensions/test/browser/browser_bug610764.js
new file mode 100644
index 000000000..58de88130
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug610764.js
@@ -0,0 +1,34 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that the discovery view is the default
+
+var gCategoryUtilities;
+
+function test() {
+  waitForExplicitFinish();
+
+  open_manager(null, function(aWindow) {
+    waitForFocus(function() {
+      // The last view is cached except when it is the search view so switch to
+      // that and reopen to ensure we see the default view
+      var searchBox = aWindow.document.getElementById("header-search");
+      searchBox.value = "bar";
+
+      EventUtils.synthesizeMouseAtCenter(searchBox, { }, aWindow);
+      EventUtils.synthesizeKey("VK_RETURN", { }, aWindow);
+
+      wait_for_view_load(aWindow, function() {
+        close_manager(aWindow, function() {
+          open_manager(null, function(aWindow) {
+            gCategoryUtilities = new CategoryUtilities(aWindow);
+            is(gCategoryUtilities.selectedCategory, "discover", "Should show the discovery pane by default");
+
+            close_manager(aWindow, finish);
+          });
+        });
+      });
+    }, aWindow);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug616841.js b/toolkit/mozapps/webextensions/test/browser/browser_bug616841.js
new file mode 100644
index 000000000..3cf6f5346
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug616841.js
@@ -0,0 +1,21 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function test_string_compare() {
+  ok("C".localeCompare("D") < 0, "C < D");
+  ok("D".localeCompare("C") > 0, "D > C");
+  ok("\u010C".localeCompare("D") < 0, "\u010C < D");
+  ok("D".localeCompare("\u010C") > 0, "D > \u010C");
+}
+
+function test() {
+  waitForExplicitFinish();
+
+  test_string_compare();
+
+  AddonManager.getAddonByID("foo", function(aAddon) {
+    test_string_compare();
+    finish();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug618502.js b/toolkit/mozapps/webextensions/test/browser/browser_bug618502.js
new file mode 100644
index 000000000..5bcc6baf1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug618502.js
@@ -0,0 +1,44 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 608316 - Test that opening the manager to an add-on that doesn't exist
+// just loads the default view
+
+var gCategoryUtilities;
+
+function test() {
+  waitForExplicitFinish();
+
+  run_next_test();
+}
+
+function end_test() {
+  finish();
+}
+
+add_test(function() {
+  open_manager("addons://detail/foo", function(aManager) {
+    gCategoryUtilities = new CategoryUtilities(aManager);
+    is(gCategoryUtilities.selectedCategory, "discover", "Should fall back to the discovery pane");
+
+    close_manager(aManager, run_next_test);
+  });
+});
+
+// Also test that opening directly to an add-on that does exist doesn't break
+// and selects the right category
+add_test(function() {
+  new MockProvider().createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "addon 1",
+    version: "1.0"
+  }]);
+
+  open_manager("addons://detail/addon1@tests.mozilla.org", function(aManager) {
+    gCategoryUtilities = new CategoryUtilities(aManager);
+    is(gCategoryUtilities.selectedCategory, "extension", "Should have selected the right category");
+
+    close_manager(aManager, run_next_test);
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug679604.js b/toolkit/mozapps/webextensions/test/browser/browser_bug679604.js
new file mode 100644
index 000000000..e1ec605c2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug679604.js
@@ -0,0 +1,29 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 679604 - Test that a XUL persisted category from an older version of
+// Firefox doesn't break the add-ons manager when that category doesn't exist
+
+var gManagerWindow;
+
+function test() {
+  waitForExplicitFinish();
+
+  open_manager(null, function(aWindow) {
+    var categories = aWindow.document.getElementById("categories");
+    categories.setAttribute("last-selected", "foo");
+    aWindow.document.persist("categories", "last-selected");
+
+    close_manager(aWindow, function() {
+      Services.prefs.clearUserPref(PREF_UI_LASTCATEGORY);
+
+      open_manager(null, function(aWindow) {
+        is(new CategoryUtilities(aWindow).selectedCategory, "discover",
+           "Should have loaded the right view");
+
+        close_manager(aWindow, finish);
+      });
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_bug714593.js b/toolkit/mozapps/webextensions/test/browser/browser_bug714593.js
new file mode 100644
index 000000000..b9a7faa5e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_bug714593.js
@@ -0,0 +1,140 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that installed addons in the search view load inline prefs properly
+
+const PREF_GETADDONS_GETSEARCHRESULTS = "extensions.getAddons.search.url";
+const NO_MATCH_URL = TESTROOT + "browser_searching_empty.xml";
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gProvider;
+
+function test() {
+  // Turn on searching for this test
+  Services.prefs.setIntPref(PREF_SEARCH_MAXRESULTS, 15);
+
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "inlinesettings2@tests.mozilla.org",
+    name: "Inline Settings (Regular)",
+    version: "1",
+    optionsURL: CHROMEROOT + "options.xul",
+    optionsType: AddonManager.OPTIONS_TYPE_INLINE
+  }]);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, finish);
+}
+
+/*
+ * Checks whether or not the Add-ons Manager is currently searching
+ *
+ * @param  aExpectedSearching
+ *         The expected isSearching state
+ */
+function check_is_searching(aExpectedSearching) {
+  var loading = gManagerWindow.document.getElementById("search-loading");
+  is(!is_hidden(loading), aExpectedSearching,
+     "Search throbber should be showing iff currently searching");
+}
+
+/*
+ * Completes a search
+ *
+ * @param  aQuery
+ *         The query to search for
+ * @param  aFinishImmediately
+ *         Boolean representing whether or not the search is expected to
+ *         finish immediately
+ * @param  aCallback
+ *         The callback to call when the search is done
+ * @param  aCategoryType
+ *         The expected selected category after the search is done.
+ *         Optional and defaults to "search"
+ */
+function search(aQuery, aFinishImmediately, aCallback, aCategoryType) {
+  // Point search to the correct xml test file
+  Services.prefs.setCharPref(PREF_GETADDONS_GETSEARCHRESULTS, NO_MATCH_URL);
+
+  aCategoryType = aCategoryType ? aCategoryType : "search";
+
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  searchBox.value = aQuery;
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  var finishImmediately = true;
+  wait_for_view_load(gManagerWindow, function() {
+    is(gCategoryUtilities.selectedCategory, aCategoryType, "Expected category view should be selected");
+    is(gCategoryUtilities.isTypeVisible("search"), aCategoryType == "search",
+       "Search category should only be visible if it is the current view");
+    is(finishImmediately, aFinishImmediately, "Search should finish immediately only if expected");
+
+    aCallback();
+  });
+
+  finishImmediately = false
+  if (!aFinishImmediately)
+    check_is_searching(true);
+}
+
+/*
+ * Get item for a specific add-on by name
+ *
+ * @param  aName
+ *         The name of the add-on to search for
+ * @return Row of add-on if found, null otherwise
+ */
+function get_addon_item(aName) {
+  var id = aName + "@tests.mozilla.org";
+  var list = gManagerWindow.document.getElementById("search-list");
+  var rows = list.getElementsByTagName("richlistitem");
+  for (let row of rows) {
+    if (row.mAddon && row.mAddon.id == id)
+      return row;
+  }
+
+  return null;
+}
+
+add_test(function() {
+  search("settings", false, function() {
+    var localFilter = gManagerWindow.document.getElementById("search-filter-local");
+    EventUtils.synthesizeMouseAtCenter(localFilter, { }, gManagerWindow);
+
+    var item = get_addon_item("inlinesettings2");
+    // Force the XBL binding to apply.
+    item.clientTop;
+    var button = gManagerWindow.document.getAnonymousElementByAttribute(item, "anonid", "preferences-btn");
+    is_element_visible(button, "Preferences button should be visible");
+
+    EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+    wait_for_view_load(gManagerWindow, function() {
+      is(gManagerWindow.gViewController.currentViewObj, gManagerWindow.gDetailView, "View should have changed to detail");
+
+      var searchCategory = gManagerWindow.document.getElementById("category-search");
+      EventUtils.synthesizeMouseAtCenter(searchCategory, { }, gManagerWindow);
+      wait_for_view_load(gManagerWindow, function() {
+        is(gManagerWindow.gViewController.currentViewObj, gManagerWindow.gSearchView, "View should have changed back to search");
+
+        // Reset filter to remote to avoid breaking later tests.
+        var remoteFilter = gManagerWindow.document.getElementById("search-filter-remote");
+        EventUtils.synthesizeMouseAtCenter(remoteFilter, { }, gManagerWindow);
+        run_next_test();
+      });
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_cancelCompatCheck.js b/toolkit/mozapps/webextensions/test/browser/browser_cancelCompatCheck.js
new file mode 100644
index 000000000..e7c672212
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_cancelCompatCheck.js
@@ -0,0 +1,462 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test that we can cancel the add-on compatibility check while it is
+// in progress (bug 772484).
+// Test framework copied from browser_bug557956.js
+
+const URI_EXTENSION_UPDATE_DIALOG = "chrome://mozapps/content/extensions/update.xul";
+
+const PREF_GETADDONS_BYIDS            = "extensions.getAddons.get.url";
+const PREF_MIN_PLATFORM_COMPAT        = "extensions.minCompatiblePlatformVersion";
+const PREF_METADATA_LASTUPDATE        = "extensions.getAddons.cache.lastUpdate";
+
+var repo = {};
+Components.utils.import("resource://gre/modules/addons/AddonRepository.jsm", repo);
+Components.utils.import("resource://gre/modules/Promise.jsm", this);
+
+/**
+ * Test add-ons:
+ *
+ * Addon    minVersion   maxVersion   Notes
+ * addon1   0            *
+ * addon2   0            0
+ * addon3   0            0
+ * addon4   1            *
+ * addon5   0            0            Made compatible by update check
+ * addon6   0            0            Made compatible by update check
+ * addon7   0            0            Has a broken update available
+ * addon8   0            0            Has an update available
+ * addon9   0            0            Has an update available
+ * addon10  0            0            Made incompatible by override check
+ */
+
+// describe the addons
+var ao1 = { file: "browser_bug557956_1", id: "bug557956-1@tests.mozilla.org"};
+var ao2 = { file: "browser_bug557956_2", id: "bug557956-2@tests.mozilla.org"};
+var ao3 = { file: "browser_bug557956_3", id: "bug557956-3@tests.mozilla.org"};
+var ao4 = { file: "browser_bug557956_4", id: "bug557956-4@tests.mozilla.org"};
+var ao5 = { file: "browser_bug557956_5", id: "bug557956-5@tests.mozilla.org"};
+var ao6 = { file: "browser_bug557956_6", id: "bug557956-6@tests.mozilla.org"};
+var ao7 = { file: "browser_bug557956_7", id: "bug557956-7@tests.mozilla.org"};
+var ao8 = { file: "browser_bug557956_8_1", id: "bug557956-8@tests.mozilla.org"};
+var ao9 = { file: "browser_bug557956_9_1", id: "bug557956-9@tests.mozilla.org"};
+var ao10 = { file: "browser_bug557956_10", id: "bug557956-10@tests.mozilla.org"};
+
+// Return a promise that resolves after the specified delay in MS
+function delayMS(aDelay) {
+  let deferred = Promise.defer();
+  setTimeout(deferred.resolve, aDelay);
+  return deferred.promise;
+}
+
+// Return a promise that resolves when the specified observer topic is notified
+function promise_observer(aTopic) {
+  let deferred = Promise.defer();
+  Services.obs.addObserver(function observe(aSubject, aObsTopic, aData) {
+    Services.obs.removeObserver(arguments.callee, aObsTopic);
+    deferred.resolve([aSubject, aData]);
+  }, aTopic, false);
+  return deferred.promise;
+}
+
+// Install a set of addons using a bogus update URL so that we can force
+// the compatibility update to happen later
+// @param aUpdateURL The real update URL to use after the add-ons are installed
+function promise_install_test_addons(aAddonList, aUpdateURL) {
+  info("Starting add-on installs");
+  var installs = [];
+  let deferred = Promise.defer();
+
+  // Use a blank update URL
+  Services.prefs.setCharPref(PREF_UPDATEURL, TESTROOT + "missing.rdf");
+
+  for (let addon of aAddonList) {
+    AddonManager.getInstallForURL(TESTROOT + "addons/" + addon.file + ".xpi", function(aInstall) {
+      installs.push(aInstall);
+    }, "application/x-xpinstall");
+  }
+
+  var listener = {
+    installCount: 0,
+
+    onInstallEnded: function() {
+      this.installCount++;
+      if (this.installCount == installs.length) {
+        info("Done add-on installs");
+        // Switch to the test update URL
+        Services.prefs.setCharPref(PREF_UPDATEURL, aUpdateURL);
+        deferred.resolve();
+      }
+    }
+  };
+
+  for (let install of installs) {
+    install.addListener(listener);
+    install.install();
+  }
+
+  return deferred.promise;
+}
+
+function promise_addons_by_ids(aAddonIDs) {
+  info("promise_addons_by_ids " + aAddonIDs.toSource());
+  let deferred = Promise.defer();
+  AddonManager.getAddonsByIDs(aAddonIDs, deferred.resolve);
+  return deferred.promise;
+}
+
+function* promise_uninstall_test_addons() {
+  info("Starting add-on uninstalls");
+  let addons = yield promise_addons_by_ids([ao1.id, ao2.id, ao3.id, ao4.id, ao5.id,
+                                            ao6.id, ao7.id, ao8.id, ao9.id, ao10.id]);
+  let deferred = Promise.defer();
+  let uninstallCount = addons.length;
+  let listener = {
+    onUninstalled: function(aAddon) {
+      if (aAddon) {
+        info("Finished uninstalling " + aAddon.id);
+      }
+      if (--uninstallCount == 0) {
+        info("Done add-on uninstalls");
+        AddonManager.removeAddonListener(listener);
+        deferred.resolve();
+      }
+    }};
+  AddonManager.addAddonListener(listener);
+  for (let addon of addons) {
+    if (addon)
+      addon.uninstall();
+    else
+      listener.onUninstalled(null);
+  }
+  yield deferred.promise;
+}
+
+// Returns promise{window}, resolves with a handle to the compatibility
+// check window
+function promise_open_compatibility_window(aInactiveAddonIds) {
+  let deferred = Promise.defer();
+  // This will reset the longer timeout multiplier to 2 which will give each
+  // test that calls open_compatibility_window a minimum of 60 seconds to
+  // complete.
+  requestLongerTimeout(2);
+
+  var variant = Cc["@mozilla.org/variant;1"].
+                createInstance(Ci.nsIWritableVariant);
+  variant.setFromVariant(aInactiveAddonIds);
+
+  // Cannot be modal as we want to interract with it, shouldn't cause problems
+  // with testing though.
+  var features = "chrome,centerscreen,dialog,titlebar";
+  var ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].
+           getService(Ci.nsIWindowWatcher);
+  var win = ww.openWindow(null, URI_EXTENSION_UPDATE_DIALOG, "", features, variant);
+
+  win.addEventListener("load", function() {
+    function page_shown(aEvent) {
+      if (aEvent.target.pageid)
+        info("Page " + aEvent.target.pageid + " shown");
+    }
+
+    win.removeEventListener("load", arguments.callee, false);
+
+    info("Compatibility dialog opened");
+
+    win.addEventListener("pageshow", page_shown, false);
+    win.addEventListener("unload", function() {
+      win.removeEventListener("unload", arguments.callee, false);
+      win.removeEventListener("pageshow", page_shown, false);
+      dump("Compatibility dialog closed\n");
+    }, false);
+
+    deferred.resolve(win);
+  }, false);
+  return deferred.promise;
+}
+
+function promise_window_close(aWindow) {
+  let deferred = Promise.defer();
+  aWindow.addEventListener("unload", function() {
+    aWindow.removeEventListener("unload", arguments.callee, false);
+    deferred.resolve(aWindow);
+  }, false);
+  return deferred.promise;
+}
+
+function promise_page(aWindow, aPageId) {
+  let deferred = Promise.defer();
+  var page = aWindow.document.getElementById(aPageId);
+  if (aWindow.document.getElementById("updateWizard").currentPage === page) {
+    deferred.resolve(aWindow);
+  } else {
+    page.addEventListener("pageshow", function() {
+      page.removeEventListener("pageshow", arguments.callee, false);
+      executeSoon(function() {
+        deferred.resolve(aWindow);
+      });
+    }, false);
+  }
+  return deferred.promise;
+}
+
+function get_list_names(aList) {
+  var items = [];
+  for (let listItem of aList.childNodes)
+    items.push(listItem.label);
+  items.sort();
+  return items;
+}
+
+// These add-ons became inactive during the upgrade
+var inactiveAddonIds = [
+  ao5.id,
+  ao6.id,
+  ao7.id,
+  ao8.id,
+  ao9.id
+];
+
+// Make sure the addons in the list are not installed
+function* check_addons_uninstalled(aAddonList) {
+  let foundList = yield promise_addons_by_ids(aAddonList.map(a => a.id));
+  for (let i = 0; i < aAddonList.length; i++) {
+    ok(!foundList[i], "Addon " + aAddonList[i].id + " is not installed");
+  }
+  info("Add-on uninstall check complete");
+  yield true;
+}
+
+// Test what happens when the user cancels during AddonRepository.repopulateCache()
+// Add-ons that have updates available should not update if they were disabled before
+// For this test, addon8 became disabled during update and addon9 was previously disabled,
+// so addon8 should update and addon9 should not
+add_task(function* cancel_during_repopulate() {
+  let a5, a8, a9, a10;
+
+  Services.prefs.setBoolPref(PREF_STRICT_COMPAT, true);
+  Services.prefs.setCharPref(PREF_MIN_PLATFORM_COMPAT, "0");
+  Services.prefs.setCharPref(PREF_UPDATEURL, TESTROOT + "missing.rdf");
+
+  let installsDone = promise_observer("TEST:all-updates-done");
+
+  // Don't pull compatibility data during add-on install
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, false);
+  // Set up our test addons so that the server-side JS has a 500ms delay to make
+  // sure we cancel the dialog before we get the data we want to refill our
+  // AddonRepository cache
+  let addonList = [ao5, ao8, ao9, ao10];
+  yield promise_install_test_addons(addonList,
+                                    TESTROOT + "cancelCompatCheck.sjs?500");
+
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, TESTROOT + "browser_bug557956.xml");
+
+  [a5, a8, a9] = yield promise_addons_by_ids([ao5.id, ao8.id, ao9.id]);
+  ok(!a5.isCompatible, "addon5 should not be compatible");
+  ok(!a8.isCompatible, "addon8 should not be compatible");
+  ok(!a9.isCompatible, "addon9 should not be compatible");
+
+  let compatWindow = yield promise_open_compatibility_window([ao5.id, ao8.id]);
+  var doc = compatWindow.document;
+  yield promise_page(compatWindow, "versioninfo");
+
+  // Brief delay to let the update window finish requesting all add-ons and start
+  // reloading the addon repository
+  yield delayMS(50);
+
+  info("Cancel the compatibility check dialog");
+  var button = doc.documentElement.getButton("cancel");
+  EventUtils.synthesizeMouse(button, 2, 2, { }, compatWindow);
+
+  info("Waiting for installs to complete");
+  yield installsDone;
+  ok(!repo.AddonRepository.isSearching, "Background installs are done");
+
+  // There should be no active updates
+  let getInstalls = Promise.defer();
+  AddonManager.getAllInstalls(getInstalls.resolve);
+  let installs = yield getInstalls.promise;
+  is (installs.length, 0, "There should be no active installs after background installs are done");
+
+  // addon8 should have updated in the background,
+  // addon9 was listed as previously disabled so it should not have updated
+  [a5, a8, a9, a10] = yield promise_addons_by_ids([ao5.id, ao8.id, ao9.id, ao10.id]);
+  ok(a5.isCompatible, "addon5 should be compatible");
+  ok(a8.isCompatible, "addon8 should have been upgraded");
+  ok(!a9.isCompatible, "addon9 should not have been upgraded");
+  ok(!a10.isCompatible, "addon10 should not be compatible");
+
+  info("Updates done");
+  yield promise_uninstall_test_addons();
+  info("done uninstalling add-ons");
+});
+
+// User cancels after repopulateCache, while we're waiting for the addon.findUpdates()
+// calls in gVersionInfoPage_onPageShow() to complete
+// For this test, both addon8 and addon9 were disabled by this update, but addon8
+// is set to not auto-update, so only addon9 should update in the background
+add_task(function* cancel_during_findUpdates() {
+  let a5, a8, a9;
+
+  Services.prefs.setBoolPref(PREF_STRICT_COMPAT, true);
+  Services.prefs.setCharPref(PREF_MIN_PLATFORM_COMPAT, "0");
+
+  // Clear the AddonRepository-last-updated preference to ensure that it reloads
+  Services.prefs.clearUserPref(PREF_METADATA_LASTUPDATE);
+  let observeUpdateDone = promise_observer("TEST:addon-repository-data-updated");
+  let installsDone = promise_observer("TEST:all-updates-done");
+
+  // Don't pull compatibility data during add-on install
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, false);
+  // No delay on the .sjs this time because we want the cache to repopulate
+  let addonList = [ao3, ao5, ao6, ao7, ao8, ao9];
+  yield promise_install_test_addons(addonList,
+                                    TESTROOT + "cancelCompatCheck.sjs");
+
+  [a8] = yield promise_addons_by_ids([ao8.id]);
+  a8.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+  let compatWindow = yield promise_open_compatibility_window(inactiveAddonIds);
+  var doc = compatWindow.document;
+  yield promise_page(compatWindow, "versioninfo");
+
+  info("Waiting for repository-data-updated");
+  yield observeUpdateDone;
+
+  // Quick wait to make sure the findUpdates calls get queued
+  yield delayMS(5);
+
+  info("Cancel the compatibility check dialog");
+  var button = doc.documentElement.getButton("cancel");
+  EventUtils.synthesizeMouse(button, 2, 2, { }, compatWindow);
+
+  info("Waiting for installs to complete 2");
+  yield installsDone;
+  ok(!repo.AddonRepository.isSearching, "Background installs are done 2");
+
+  // addon8 should have updated in the background,
+  // addon9 was listed as previously disabled so it should not have updated
+  [a5, a8, a9] = yield promise_addons_by_ids([ao5.id, ao8.id, ao9.id]);
+  ok(a5.isCompatible, "addon5 should be compatible");
+  ok(!a8.isCompatible, "addon8 should not have been upgraded");
+  ok(a9.isCompatible, "addon9 should have been upgraded");
+
+  let getInstalls = Promise.defer();
+  AddonManager.getAllInstalls(getInstalls.resolve);
+  let installs = yield getInstalls.promise;
+  is (installs.length, 0, "There should be no active installs after the dialog is cancelled 2");
+
+  info("findUpdates done");
+  yield promise_uninstall_test_addons();
+});
+
+// Cancelling during the 'mismatch' screen allows add-ons that can auto-update
+// to continue updating in the background and cancels any other updates
+// Same conditions as the previous test - addon8 and addon9 have updates available,
+// addon8 is set to not auto-update so only addon9 should become compatible
+add_task(function* cancel_mismatch() {
+  let a3, a5, a7, a8, a9;
+
+  Services.prefs.setBoolPref(PREF_STRICT_COMPAT, true);
+  Services.prefs.setCharPref(PREF_MIN_PLATFORM_COMPAT, "0");
+
+  // Clear the AddonRepository-last-updated preference to ensure that it reloads
+  Services.prefs.clearUserPref(PREF_METADATA_LASTUPDATE);
+  let installsDone = promise_observer("TEST:all-updates-done");
+
+  // Don't pull compatibility data during add-on install
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, false);
+  // No delay on the .sjs this time because we want the cache to repopulate
+  let addonList = [ao3, ao5, ao6, ao7, ao8, ao9];
+  yield promise_install_test_addons(addonList,
+                                    TESTROOT + "cancelCompatCheck.sjs");
+
+  [a8] = yield promise_addons_by_ids([ao8.id]);
+  a8.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+
+  // Check that the addons start out not compatible.
+  [a3, a7, a8, a9] = yield promise_addons_by_ids([ao3.id, ao7.id, ao8.id, ao9.id]);
+  ok(!a3.isCompatible, "addon3 should not be compatible");
+  ok(!a7.isCompatible, "addon7 should not be compatible");
+  ok(!a8.isCompatible, "addon8 should not be compatible");
+  ok(!a9.isCompatible, "addon9 should not be compatible");
+
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+  let compatWindow = yield promise_open_compatibility_window(inactiveAddonIds);
+  var doc = compatWindow.document;
+  info("Wait for mismatch page");
+  yield promise_page(compatWindow, "mismatch");
+  info("Click the Don't Check button");
+  var button = doc.documentElement.getButton("cancel");
+  EventUtils.synthesizeMouse(button, 2, 2, { }, compatWindow);
+
+  yield promise_window_close(compatWindow);
+  info("Waiting for installs to complete in cancel_mismatch");
+  yield installsDone;
+
+  // addon8 should not have updated in the background,
+  // addon9 was listed as previously disabled so it should not have updated
+  [a5, a8, a9] = yield promise_addons_by_ids([ao5.id, ao8.id, ao9.id]);
+  ok(a5.isCompatible, "addon5 should be compatible");
+  ok(!a8.isCompatible, "addon8 should not have been upgraded");
+  ok(a9.isCompatible, "addon9 should have been upgraded");
+
+  // Make sure there are no pending addon installs
+  let pInstalls = Promise.defer();
+  AddonManager.getAllInstalls(pInstalls.resolve);
+  let installs = yield pInstalls.promise;
+  ok(installs.length == 0, "No remaining add-on installs (" + installs.toSource() + ")");
+
+  yield promise_uninstall_test_addons();
+  yield check_addons_uninstalled(addonList);
+});
+
+// Cancelling during the 'mismatch' screen with only add-ons that have
+// no updates available
+add_task(function* cancel_mismatch_no_updates() {
+  let a3, a5, a6
+
+  Services.prefs.setBoolPref(PREF_STRICT_COMPAT, true);
+  Services.prefs.setCharPref(PREF_MIN_PLATFORM_COMPAT, "0");
+
+  // Don't pull compatibility data during add-on install
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, false);
+  // No delay on the .sjs this time because we want the cache to repopulate
+  let addonList = [ao3, ao5, ao6];
+  yield promise_install_test_addons(addonList,
+                                    TESTROOT + "cancelCompatCheck.sjs");
+
+  // Check that the addons start out not compatible.
+  [a3, a5, a6] = yield promise_addons_by_ids([ao3.id, ao5.id, ao6.id]);
+  ok(!a3.isCompatible, "addon3 should not be compatible");
+  ok(!a5.isCompatible, "addon5 should not be compatible");
+  ok(!a6.isCompatible, "addon6 should not be compatible");
+
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+  let compatWindow = yield promise_open_compatibility_window([ao3.id, ao5.id, ao6.id]);
+  var doc = compatWindow.document;
+  info("Wait for mismatch page");
+  yield promise_page(compatWindow, "mismatch");
+  info("Click the Don't Check button");
+  var button = doc.documentElement.getButton("cancel");
+  EventUtils.synthesizeMouse(button, 2, 2, { }, compatWindow);
+
+  yield promise_window_close(compatWindow);
+
+  [a3, a5, a6] = yield promise_addons_by_ids([ao3.id, ao5.id, ao6.id]);
+  ok(!a3.isCompatible, "addon3 should not be compatible");
+  ok(a5.isCompatible, "addon5 should have become compatible");
+  ok(a6.isCompatible, "addon6 should have become compatible");
+
+  // Make sure there are no pending addon installs
+  let pInstalls = Promise.defer();
+  AddonManager.getAllInstalls(pInstalls.resolve);
+  let installs = yield pInstalls.promise;
+  ok(installs.length == 0, "No remaining add-on installs (" + installs.toSource() + ")");
+
+  yield promise_uninstall_test_addons();
+  yield check_addons_uninstalled(addonList);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_checkAddonCompatibility.js b/toolkit/mozapps/webextensions/test/browser/browser_checkAddonCompatibility.js
new file mode 100644
index 000000000..6c42e0126
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_checkAddonCompatibility.js
@@ -0,0 +1,34 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test that all bundled add-ons are compatible.
+
+function test() {
+  waitForExplicitFinish();
+
+  Services.prefs.setBoolPref(PREF_STRICT_COMPAT, true);
+  ok(AddonManager.strictCompatibility, "Strict compatibility should be enabled");
+
+  AddonManager.getAllAddons(function gAACallback(aAddons) {
+    // Sort add-ons (by type and name) to improve output.
+    aAddons.sort(function compareTypeName(a, b) {
+      return a.type.localeCompare(b.type) || a.name.localeCompare(b.name);
+    });
+
+    let allCompatible = true;
+    for (let a of aAddons) {
+      // Ignore plugins.
+      if (a.type == "plugin")
+        continue;
+
+      ok(a.isCompatible, a.type + " " + a.name + " " + a.version + " should be compatible");
+      allCompatible = allCompatible && a.isCompatible;
+    }
+    // Add a reminder.
+    if (!allCompatible)
+      ok(false, "As this test failed, test browser_bug557956.js should have failed, too.");
+
+    finish();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_details.js b/toolkit/mozapps/webextensions/test/browser/browser_details.js
new file mode 100644
index 000000000..ce4c51b5a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_details.js
@@ -0,0 +1,1053 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests various aspects of the details view
+
+const { REQUIRE_SIGNING } = Components.utils.import("resource://gre/modules/addons/AddonConstants.jsm", {});
+
+const PREF_AUTOUPDATE_DEFAULT = "extensions.update.autoUpdateDefault";
+const PREF_GETADDONS_GETSEARCHRESULTS = "extensions.getAddons.search.url";
+const SEARCH_URL = TESTROOT + "browser_details.xml";
+const PREF_EM_HOTFIX_ID = "extensions.hotfix.id";
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gProvider;
+
+var gApp = document.getElementById("bundle_brand").getString("brandShortName");
+var gVersion = Services.appinfo.version;
+var gDate = new Date(2010, 7, 1);
+var infoURL = Services.urlFormatter.formatURLPref("app.support.baseURL") + "unsigned-addons";
+
+function open_details(aId, aType, aCallback) {
+  requestLongerTimeout(2);
+
+  gCategoryUtilities.openType(aType, function() {
+    var list = gManagerWindow.document.getElementById("addon-list");
+    var item = list.firstChild;
+    while (item) {
+      if ("mAddon" in item && item.mAddon.id == aId) {
+        list.ensureElementIsVisible(item);
+        EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
+        EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
+        wait_for_view_load(gManagerWindow, aCallback);
+        return;
+      }
+      item = item.nextSibling;
+    }
+    ok(false, "Should have found the add-on in the list");
+  });
+}
+
+function get(aId) {
+  return gManagerWindow.document.getElementById(aId);
+}
+
+function test() {
+  requestLongerTimeout(2);
+  // Turn on searching for this test
+  Services.prefs.setIntPref(PREF_SEARCH_MAXRESULTS, 15);
+  Services.prefs.setCharPref(PREF_GETADDONS_GETSEARCHRESULTS, SEARCH_URL);
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_ID, "hotfix@tests.mozilla.org");
+
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "Test add-on 1",
+    version: "2.1",
+    description: "Short description",
+    fullDescription: "Longer description",
+    type: "extension",
+    iconURL: "chrome://foo/skin/icon.png",
+    icon64URL: "chrome://foo/skin/icon64.png",
+    contributionURL: "http://foo.com",
+    contributionAmount: "$0.99",
+    sourceURI: Services.io.newURI("http://example.com/foo", null, null),
+    averageRating: 4,
+    reviewCount: 5,
+    reviewURL: "http://example.com/reviews",
+    homepageURL: "http://example.com/addon1",
+    applyBackgroundUpdates: AddonManager.AUTOUPDATE_ENABLE
+  }, {
+    id: "addon2@tests.mozilla.org",
+    name: "Test add-on 2",
+    version: "2.2",
+    description: "Short description",
+    creator: { name: "Mozilla", url: null },
+    type: "extension",
+    iconURL: "chrome://foo/skin/icon.png",
+    contributionURL: "http://foo.com",
+    contributionAmount: null,
+    updateDate: gDate,
+    permissions: 0,
+    screenshots: [{
+      url: "chrome://branding/content/about.png",
+      width: 200,
+      height: 150
+    }],
+  }, {
+    id: "addon3@tests.mozilla.org",
+    name: "Test add-on 3",
+    description: "Short description",
+    creator: { name: "Mozilla", url: "http://www.mozilla.org" },
+    type: "extension",
+    sourceURI: Services.io.newURI("http://example.com/foo", null, null),
+    updateDate: gDate,
+    reviewCount: 1,
+    reviewURL: "http://example.com/reviews",
+    applyBackgroundUpdates: AddonManager.AUTOUPDATE_DISABLE,
+    isActive: false,
+    isCompatible: false,
+    appDisabled: true,
+    permissions: AddonManager.PERM_CAN_ENABLE |
+                 AddonManager.PERM_CAN_DISABLE |
+                 AddonManager.PERM_CAN_UPGRADE,
+    screenshots: [{
+      url: "http://example.com/screenshot",
+      width: 400,
+      height: 300,
+      thumbnailURL: "chrome://branding/content/icon64.png",
+      thumbnailWidth: 160,
+      thumbnailHeight: 120
+    }],
+  }, {
+    id: "addon4@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon4@tests.mozilla.org",
+    name: "Test add-on 4",
+    _userDisabled: true,
+    isActive: false,
+    blocklistState: Ci.nsIBlocklistService.STATE_SOFTBLOCKED
+  }, {
+    id: "addon5@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon5@tests.mozilla.org",
+    name: "Test add-on 5",
+    isActive: false,
+    blocklistState: Ci.nsIBlocklistService.STATE_BLOCKED,
+    appDisabled: true
+  }, {
+    id: "addon6@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon6@tests.mozilla.org",
+    name: "Test add-on 6",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon7@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon7@tests.mozilla.org",
+    name: "Test add-on 7",
+    _userDisabled: true,
+    isActive: false
+  }, {
+    id: "addon8@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon8@tests.mozilla.org",
+    name: "Test add-on 8",
+    blocklistState: Ci.nsIBlocklistService.STATE_OUTDATED
+  }, {
+    id: "addon9@tests.mozilla.org",
+    name: "Test add-on 9",
+    signedState: AddonManager.SIGNEDSTATE_MISSING,
+  }, {
+    id: "addon10@tests.mozilla.org",
+    name: "Test add-on 10",
+    signedState: AddonManager.SIGNEDSTATE_MISSING,
+    isActive: false,
+    appDisabled: true,
+    isCompatible: false,
+  }, {
+    id: "addon11@tests.mozilla.org",
+    name: "Test add-on 11",
+    signedState: AddonManager.SIGNEDSTATE_PRELIMINARY,
+    foreignInstall: true,
+    isActive: false,
+    appDisabled: true,
+    isCompatible: false,
+  }, {
+    id: "addon12@tests.mozilla.org",
+    name: "Test add-on 12",
+    signedState: AddonManager.SIGNEDSTATE_SIGNED,
+    foreignInstall: true,
+  }, {
+    id: "hotfix@tests.mozilla.org",
+    name: "Test hotfix 1",
+  }]);
+
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    run_next_test();
+  });
+}
+
+function end_test() {
+  Services.prefs.clearUserPref(PREF_EM_HOTFIX_ID);
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+// Opens and tests the details view for add-on 1
+add_test(function() {
+  open_details("addon1@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test add-on 1", "Name should be correct");
+    is_element_visible(get("detail-version"), "Version should not be hidden");
+    is(get("detail-version").value, "2.1", "Version should be correct");
+    is(get("detail-icon").src, "chrome://foo/skin/icon64.png", "Icon should be correct");
+    is_element_hidden(get("detail-creator"), "Creator should be hidden");
+    is_element_hidden(get("detail-screenshot-box"), "Screenshot should be hidden");
+    is(get("detail-screenshot").width, "", "Screenshot dimensions should not be set");
+    is(get("detail-screenshot").height, "", "Screenshot dimensions should not be set");
+    is(get("detail-desc").textContent, "Short description", "Description should be correct");
+    is(get("detail-fulldesc").textContent, "Longer description", "Full description should be correct");
+
+    is_element_visible(get("detail-contributions"), "Contributions section should be visible");
+    is_element_visible(get("detail-contrib-suggested"), "Contributions amount should be visible");
+    ok(get("detail-contrib-suggested").value, "$0.99");
+
+    is_element_visible(get("detail-updates-row"), "Updates should not be hidden");
+    is_element_hidden(get("detail-dateUpdated"), "Update date should be hidden");
+
+    is_element_visible(get("detail-rating-row"), "Rating row should not be hidden");
+    is_element_visible(get("detail-rating"), "Rating should not be hidden");
+    is(get("detail-rating").averageRating, 4, "Rating should be correct");
+    is_element_visible(get("detail-reviews"), "Reviews should not be hidden");
+    is(get("detail-reviews").href, "http://example.com/reviews", "Review URL should be correct");
+    is(get("detail-reviews").value, "5 reviews", "Review text should be correct");
+
+    is_element_visible(get("detail-homepage-row"), "Homepage should be visible");
+    ok(get("detail-homepage").href, "http://example.com/addon1");
+    is_element_hidden(get("detail-repository-row"), "Repository profile should not be visible");
+
+    is_element_hidden(get("detail-size"), "Size should be hidden");
+
+    is_element_hidden(get("detail-downloads"), "Downloads should be hidden");
+
+    is_element_visible(get("detail-autoUpdate"), "Updates should not be hidden");
+    ok(get("detail-autoUpdate").childNodes[1].selected, "Updates ahould be automatic");
+    is_element_hidden(get("detail-findUpdates-btn"), "Check for updates should be hidden");
+    EventUtils.synthesizeMouseAtCenter(get("detail-autoUpdate").lastChild, {}, gManagerWindow);
+    ok(get("detail-autoUpdate").lastChild.selected, "Updates should be manual");
+    is_element_visible(get("detail-findUpdates-btn"), "Check for updates should be visible");
+    EventUtils.synthesizeMouseAtCenter(get("detail-autoUpdate").firstChild, {}, gManagerWindow);
+    ok(get("detail-autoUpdate").firstChild.selected, "Updates should be automatic");
+    is_element_hidden(get("detail-findUpdates-btn"), "Check for updates should be hidden");
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    // Disable it
+    EventUtils.synthesizeMouseAtCenter(get("detail-disable-btn"), {}, gManagerWindow);
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_visible(get("detail-enable-btn"), "Enable button should be visible");
+    is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_visible(get("detail-pending"), "Pending message should be visible");
+    is(get("detail-pending").textContent, "Test add-on 1 will be disabled after you restart " + gApp + ".", "Pending message should be correct");
+
+    // Reopen it
+    open_details("addon1@tests.mozilla.org", "extension", function() {
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_visible(get("detail-enable-btn"), "Enable button should be visible");
+      is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+      is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_visible(get("detail-pending"), "Pending message should be visible");
+      is(get("detail-pending").textContent, "Test add-on 1 will be disabled after you restart " + gApp + ".", "Pending message should be correct");
+
+      // Undo disabling
+      EventUtils.synthesizeMouseAtCenter(get("detail-undo-btn"), {}, gManagerWindow);
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+      is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+      is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+      run_next_test();
+    });
+  });
+});
+
+// Opens and tests the details view for add-on 2
+add_test(function() {
+  open_details("addon2@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test add-on 2", "Name should be correct");
+    is_element_visible(get("detail-version"), "Version should not be hidden");
+    is(get("detail-version").value, "2.2", "Version should be correct");
+    is(get("detail-icon").src, "chrome://foo/skin/icon.png", "Icon should be correct");
+
+    is_element_visible(get("detail-creator"), "Creator should not be hidden");
+    is_element_visible(get("detail-creator")._creatorName, "Creator name should not be hidden");
+    is(get("detail-creator")._creatorName.value, "Mozilla", "Creator should be correct");
+    is_element_hidden(get("detail-creator")._creatorLink, "Creator link should be hidden");
+
+    is_element_visible(get("detail-screenshot-box"), "Screenshot should be visible");
+    is(get("detail-screenshot").src, "chrome://branding/content/about.png", "Should be showing the full sized screenshot");
+    is(get("detail-screenshot").width, 200, "Screenshot dimensions should be set");
+    is(get("detail-screenshot").height, 150, "Screenshot dimensions should be set");
+    is(get("detail-screenshot").hasAttribute("loading"), true, "Screenshot should have loading attribute");
+    is(get("detail-desc").textContent, "Short description", "Description should be correct");
+    is_element_hidden(get("detail-fulldesc"), "Full description should be hidden");
+
+    is_element_visible(get("detail-contributions"), "Contributions section should be visible");
+    is_element_hidden(get("detail-contrib-suggested"), "Contributions amount should be hidden");
+
+    is_element_visible(get("detail-dateUpdated"), "Update date should not be hidden");
+    is(get("detail-dateUpdated").value, formatDate(gDate), "Update date should be correct");
+
+    is_element_hidden(get("detail-rating-row"), "Rating should be hidden");
+
+    is_element_hidden(get("detail-homepage-row"), "Homepage should not be visible");
+    is_element_hidden(get("detail-repository-row"), "Repository profile should not be visible");
+
+    is_element_hidden(get("detail-size"), "Size should be hidden");
+
+    is_element_hidden(get("detail-downloads"), "Downloads should be hidden");
+
+    is_element_hidden(get("detail-updates-row"), "Updates should be hidden");
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+    is_element_hidden(get("detail-uninstall-btn"), "Remove button should be hidden");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    get("detail-screenshot").addEventListener("load", function() {
+      this.removeEventListener("load", arguments.callee, false);
+      is(this.hasAttribute("loading"), false, "Screenshot should not have loading attribute");
+      run_next_test();
+    }, false);
+  });
+});
+
+// Opens and tests the details view for add-on 3
+add_test(function() {
+  open_details("addon3@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test add-on 3", "Name should be correct");
+    is_element_hidden(get("detail-version"), "Version should be hidden");
+    is(get("detail-icon").src, "", "Icon should be correct");
+
+    is_element_visible(get("detail-creator"), "Creator should not be hidden");
+    is_element_hidden(get("detail-creator")._creatorName, "Creator name should be hidden");
+    is_element_visible(get("detail-creator")._creatorLink, "Creator link should not be hidden");
+    is(get("detail-creator")._creatorLink.value, "Mozilla", "Creator link should be correct");
+    is(get("detail-creator")._creatorLink.href, "http://www.mozilla.org", "Creator link href should be correct");
+
+    is_element_visible(get("detail-screenshot-box"), "Screenshot should be visible");
+    is(get("detail-screenshot").src, "chrome://branding/content/icon64.png", "Should be showing the thumbnail");
+    is(get("detail-screenshot").width, 160, "Screenshot dimensions should be set");
+    is(get("detail-screenshot").height, 120, "Screenshot dimensions should be set");
+    is(get("detail-screenshot").hasAttribute("loading"), true, "Screenshot should have loading attribute");
+
+    is_element_hidden(get("detail-contributions"), "Contributions section should be hidden");
+
+    is_element_visible(get("detail-updates-row"), "Updates should not be hidden");
+    is_element_visible(get("detail-dateUpdated"), "Update date should not be hidden");
+    is(get("detail-dateUpdated").value, formatDate(gDate), "Update date should be correct");
+
+    is_element_visible(get("detail-rating-row"), "Rating row should not be hidden");
+    is_element_hidden(get("detail-rating"), "Rating should be hidden");
+    is_element_visible(get("detail-reviews"), "Reviews should not be hidden");
+    is(get("detail-reviews").href, "http://example.com/reviews", "Review URL should be correct");
+    is(get("detail-reviews").value, "1 review", "Review text should be correct");
+
+    is_element_hidden(get("detail-size"), "Size should be hidden");
+
+    is_element_hidden(get("detail-downloads"), "Downloads should be hidden");
+
+    is_element_visible(get("detail-autoUpdate"), "Updates should not be hidden");
+    ok(get("detail-autoUpdate").lastChild.selected, "Updates should be manual");
+    is_element_visible(get("detail-findUpdates-btn"), "Check for updates should be visible");
+    EventUtils.synthesizeMouseAtCenter(get("detail-autoUpdate").childNodes[1], {}, gManagerWindow);
+    ok(get("detail-autoUpdate").childNodes[1].selected, "Updates should be automatic");
+    is_element_hidden(get("detail-findUpdates-btn"), "Check for updates should be hidden");
+    EventUtils.synthesizeMouseAtCenter(get("detail-autoUpdate").lastChild, {}, gManagerWindow);
+    ok(get("detail-autoUpdate").lastChild.selected, "Updates should be manual");
+    is_element_visible(get("detail-findUpdates-btn"), "Check for updates should be visible");
+
+    info("Setting " + PREF_AUTOUPDATE_DEFAULT + " to true");
+    Services.prefs.setBoolPref(PREF_AUTOUPDATE_DEFAULT, true);
+    EventUtils.synthesizeMouseAtCenter(get("detail-autoUpdate").firstChild, {}, gManagerWindow);
+    ok(get("detail-autoUpdate").firstChild.selected, "Updates should be default");
+    is_element_hidden(get("detail-findUpdates-btn"), "Check for updates should be hidden");
+
+    info("Setting " + PREF_AUTOUPDATE_DEFAULT + " to false");
+    Services.prefs.setBoolPref(PREF_AUTOUPDATE_DEFAULT, false);
+    ok(get("detail-autoUpdate").firstChild.selected, "Updates should be default");
+    is_element_visible(get("detail-findUpdates-btn"), "Check for updates should be visible");
+    EventUtils.synthesizeMouseAtCenter(get("detail-autoUpdate").childNodes[1], {}, gManagerWindow);
+    ok(get("detail-autoUpdate").childNodes[1].selected, "Updates should be automatic");
+    is_element_hidden(get("detail-findUpdates-btn"), "Check for updates should be hidden");
+    EventUtils.synthesizeMouseAtCenter(get("detail-autoUpdate").firstChild, {}, gManagerWindow);
+    ok(get("detail-autoUpdate").firstChild.selected, "Updates should be default");
+    is_element_visible(get("detail-findUpdates-btn"), "Check for updates should be visible");
+    Services.prefs.clearUserPref(PREF_AUTOUPDATE_DEFAULT);
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+    is_element_hidden(get("detail-uninstall-btn"), "Remove button should be hidden");
+
+    is_element_visible(get("detail-warning"), "Warning message should be visible");
+    is(get("detail-warning").textContent, "Test add-on 3 is incompatible with " + gApp + " " + gVersion + ".", "Warning message should be correct");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    get("detail-screenshot").addEventListener("load", function() {
+      this.removeEventListener("load", arguments.callee, false);
+      is(this.hasAttribute("loading"), false, "Screenshot should not have loading attribute");
+      run_next_test();
+    }, false);
+  });
+});
+
+// Opens and tests the details view for add-on 4
+add_test(function() {
+  open_details("addon4@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test add-on 4", "Name should be correct");
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_visible(get("detail-enable-btn"), "Enable button should be visible");
+    is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_visible(get("detail-warning"), "Warning message should be visible");
+    is(get("detail-warning").textContent, "Test add-on 4 is known to cause security or stability issues.", "Warning message should be correct");
+    is_element_visible(get("detail-warning-link"), "Warning link should be visible");
+    is(get("detail-warning-link").value, "More Information", "Warning link text should be correct");
+    is(get("detail-warning-link").href, "http://example.com/addon4@tests.mozilla.org", "Warning link should be correct");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    // Enable it
+    EventUtils.synthesizeMouseAtCenter(get("detail-enable-btn"), {}, gManagerWindow);
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_visible(get("detail-pending"), "Pending message should be visible");
+    is(get("detail-pending").textContent, "Test add-on 4 will be enabled after you restart " + gApp + ".", "Pending message should be correct");
+
+    // Reopen it
+    open_details("addon4@tests.mozilla.org", "extension", function() {
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+      is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+      is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_visible(get("detail-pending"), "Pending message should be visible");
+      is(get("detail-pending").textContent, "Test add-on 4 will be enabled after you restart " + gApp + ".", "Pending message should be correct");
+
+      // Undo enabling
+      EventUtils.synthesizeMouseAtCenter(get("detail-undo-btn"), {}, gManagerWindow);
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_visible(get("detail-enable-btn"), "Enable button should be visible");
+      is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_visible(get("detail-warning"), "Warning message should be visible");
+      is(get("detail-warning").textContent, "Test add-on 4 is known to cause security or stability issues.", "Warning message should be correct");
+      is_element_visible(get("detail-warning-link"), "Warning link should be visible");
+      is(get("detail-warning-link").value, "More Information", "Warning link text should be correct");
+      is(get("detail-warning-link").href, "http://example.com/addon4@tests.mozilla.org", "Warning link should be correct");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+      run_next_test();
+    });
+  });
+});
+
+// Opens and tests the details view for add-on 5
+add_test(function() {
+  open_details("addon5@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test add-on 5", "Name should be correct");
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_visible(get("detail-error"), "Error message should be visible");
+    is(get("detail-error").textContent, "Test add-on 5 has been disabled due to security or stability issues.", "Error message should be correct");
+    is_element_visible(get("detail-error-link"), "Error link should be visible");
+    is(get("detail-error-link").value, "More Information", "Error link text should be correct");
+    is(get("detail-error-link").href, "http://example.com/addon5@tests.mozilla.org", "Error link should be correct");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    run_next_test();
+  });
+});
+
+// Opens and tests the details view for add-on 6
+add_test(function() {
+  open_details("addon6@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test add-on 6", "Name should be correct");
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    // Disable it
+    EventUtils.synthesizeMouseAtCenter(get("detail-disable-btn"), {}, gManagerWindow);
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_visible(get("detail-enable-btn"), "Enable button should be visible");
+    is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    // Reopen it
+    open_details("addon6@tests.mozilla.org", "extension", function() {
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_visible(get("detail-enable-btn"), "Enable button should be visible");
+      is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+      is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_hidden(get("detail-pending"), "Pending message should be visible");
+
+      // Enable it
+      EventUtils.synthesizeMouseAtCenter(get("detail-enable-btn"), {}, gManagerWindow);
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+      is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+      is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+      run_next_test();
+    });
+  });
+});
+
+// Opens and tests the details view for add-on 7
+add_test(function() {
+  open_details("addon7@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test add-on 7", "Name should be correct");
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_visible(get("detail-enable-btn"), "Enable button should be visible");
+    is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    // Enable it
+    EventUtils.synthesizeMouseAtCenter(get("detail-enable-btn"), {}, gManagerWindow);
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_visible(get("detail-pending"), "Pending message should be visible");
+    is(get("detail-pending").textContent, "Test add-on 7 will be enabled after you restart " + gApp + ".", "Pending message should be correct");
+
+    // Reopen it
+    open_details("addon7@tests.mozilla.org", "extension", function() {
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+      is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+      is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_visible(get("detail-pending"), "Pending message should be visible");
+      is(get("detail-pending").textContent, "Test add-on 7 will be enabled after you restart " + gApp + ".", "Pending message should be correct");
+
+      // Undo enabling
+      EventUtils.synthesizeMouseAtCenter(get("detail-undo-btn"), {}, gManagerWindow);
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_visible(get("detail-enable-btn"), "Enable button should be visible");
+      is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+      is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+      run_next_test();
+    });
+  });
+});
+
+// Opens and tests the details view for add-on 8
+add_test(function() {
+  open_details("addon8@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test add-on 8", "Name should be correct");
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_visible(get("detail-warning"), "Warning message should be visible");
+    is(get("detail-warning").textContent, "An important update is available for Test add-on 8.", "Warning message should be correct");
+    is_element_visible(get("detail-warning-link"), "Warning link should be visible");
+    is(get("detail-warning-link").value, "Update Now", "Warning link text should be correct");
+    is(get("detail-warning-link").href, "http://example.com/addon8@tests.mozilla.org", "Warning link should be correct");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    // Disable it
+    EventUtils.synthesizeMouseAtCenter(get("detail-disable-btn"), {}, gManagerWindow);
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_visible(get("detail-enable-btn"), "Enable button should be visible");
+    is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_visible(get("detail-pending"), "Pending message should be visible");
+    is(get("detail-pending").textContent, "Test add-on 8 will be disabled after you restart " + gApp + ".", "Pending message should be correct");
+
+    // Reopen it
+    open_details("addon8@tests.mozilla.org", "extension", function() {
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_visible(get("detail-enable-btn"), "Enable button should be visible");
+      is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+      is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_visible(get("detail-pending"), "Pending message should be visible");
+      is(get("detail-pending").textContent, "Test add-on 8 will be disabled after you restart " + gApp + ".", "Pending message should be correct");
+
+      // Undo disabling
+      EventUtils.synthesizeMouseAtCenter(get("detail-undo-btn"), {}, gManagerWindow);
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+      is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_visible(get("detail-warning"), "Warning message should be visible");
+      is(get("detail-warning").textContent, "An important update is available for Test add-on 8.", "Warning message should be correct");
+      is_element_visible(get("detail-warning-link"), "Warning link should be visible");
+      is(get("detail-warning-link").value, "Update Now", "Warning link text should be correct");
+      is(get("detail-warning-link").href, "http://example.com/addon8@tests.mozilla.org", "Warning link should be correct");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+      run_next_test();
+    });
+  });
+});
+
+// These tests are only appropriate when signing can be turned off
+if (!REQUIRE_SIGNING) {
+  // Opens and tests the details view for add-on 9
+  add_test(function() {
+    open_details("addon9@tests.mozilla.org", "extension", function() {
+      is(get("detail-name").textContent, "Test add-on 9", "Name should be correct");
+
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+      is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_visible(get("detail-warning"), "Error message should be visible");
+      is(get("detail-warning").textContent, "Test add-on 9 could not be verified for use in " + gApp + ". Proceed with caution.", "Warning message should be correct");
+      is_element_visible(get("detail-warning-link"), "Warning link should be visible");
+      is(get("detail-warning-link").value, "More Information", "Warning link text should be correct");
+      is(get("detail-warning-link").href, infoURL, "Warning link should be correct");
+      is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+      run_next_test();
+    });
+  });
+}
+
+// Opens and tests the details view for add-on 9 with signing required
+add_test(function() {
+  close_manager(gManagerWindow, function() {
+    Services.prefs.setBoolPref("xpinstall.signatures.required", true);
+    open_manager(null, function(aWindow) {
+      gManagerWindow = aWindow;
+      gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+      open_details("addon9@tests.mozilla.org", "extension", function() {
+        is(get("detail-name").textContent, "Test add-on 9", "Name should be correct");
+
+        is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+        is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+        is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+        is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+        is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+        is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+        is_element_visible(get("detail-error"), "Error message should be visible");
+        is(get("detail-error").textContent, "Test add-on 9 could not be verified for use in " + gApp + " and has been disabled.", "Error message should be correct");
+        is_element_visible(get("detail-error-link"), "Error link should be visible");
+        is(get("detail-error-link").value, "More Information", "Error link text should be correct");
+        is(get("detail-error-link").href, infoURL, "Error link should be correct");
+
+        close_manager(gManagerWindow, function() {
+          Services.prefs.setBoolPref("xpinstall.signatures.required", false);
+          open_manager(null, function(aWindow) {
+            gManagerWindow = aWindow;
+            gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+            run_next_test();
+          });
+        });
+      });
+    });
+  });
+});
+
+// These tests are only appropriate when signing can be turned off
+if (!REQUIRE_SIGNING) {
+  // Opens and tests the details view for add-on 10
+  add_test(function() {
+    open_details("addon10@tests.mozilla.org", "extension", function() {
+      is(get("detail-name").textContent, "Test add-on 10", "Name should be correct");
+
+      is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+      is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+      is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+      is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+      is_element_visible(get("detail-warning"), "Warning message should be visible");
+      is(get("detail-warning").textContent, "Test add-on 10 is incompatible with " + gApp + " " + gVersion + ".", "Warning message should be correct");
+      is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+      is_element_hidden(get("detail-error"), "Error message should be hidden");
+      is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+      is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+      run_next_test();
+    });
+  });
+}
+
+// Opens and tests the details view for add-on 10 with signing required
+add_test(function() {
+  close_manager(gManagerWindow, function() {
+    Services.prefs.setBoolPref("xpinstall.signatures.required", true);
+    open_manager(null, function(aWindow) {
+      gManagerWindow = aWindow;
+      gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+      open_details("addon10@tests.mozilla.org", "extension", function() {
+        is(get("detail-name").textContent, "Test add-on 10", "Name should be correct");
+
+        is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+        is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+        is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+        is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+        is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+        is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+        is_element_visible(get("detail-error"), "Error message should be visible");
+        is(get("detail-error").textContent, "Test add-on 10 could not be verified for use in " + gApp + " and has been disabled.", "Error message should be correct");
+        is_element_visible(get("detail-error-link"), "Error link should be visible");
+        is(get("detail-error-link").value, "More Information", "Error link text should be correct");
+        is(get("detail-error-link").href, infoURL, "Error link should be correct");
+
+        close_manager(gManagerWindow, function() {
+          Services.prefs.setBoolPref("xpinstall.signatures.required", false);
+          open_manager(null, function(aWindow) {
+            gManagerWindow = aWindow;
+            gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+            run_next_test();
+          });
+        });
+      });
+    });
+  });
+});
+
+// Opens and tests the details view for add-on 11
+add_test(function() {
+  open_details("addon11@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test add-on 11", "Name should be correct");
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_visible(get("detail-warning"), "Warning message should be visible");
+    is(get("detail-warning").textContent, "Test add-on 11 is incompatible with " + gApp + " " + gVersion + ".", "Warning message should be correct");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    run_next_test();
+  });
+});
+
+// Opens and tests the details view for add-on 11 with signing required
+add_test(function() {
+  close_manager(gManagerWindow, function() {
+    Services.prefs.setBoolPref("xpinstall.signatures.required", true);
+    open_manager(null, function(aWindow) {
+      gManagerWindow = aWindow;
+      gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+      open_details("addon11@tests.mozilla.org", "extension", function() {
+        is(get("detail-name").textContent, "Test add-on 11", "Name should be correct");
+
+        is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+        is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+        is_element_hidden(get("detail-disable-btn"), "Disable button should be hidden");
+        is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+        is_element_visible(get("detail-warning"), "Warning message should be visible");
+        is(get("detail-warning").textContent, "Test add-on 11 is incompatible with " + gApp + " " + gVersion + ".", "Warning message should be correct");
+        is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+        is_element_hidden(get("detail-error"), "Error message should be hidden");
+        is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+
+        close_manager(gManagerWindow, function() {
+          Services.prefs.setBoolPref("xpinstall.signatures.required", false);
+          open_manager(null, function(aWindow) {
+            gManagerWindow = aWindow;
+            gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+            run_next_test();
+          });
+        });
+      });
+    });
+  });
+});
+
+// Opens and tests the details view for add-on 12
+add_test(function() {
+  open_details("addon12@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test add-on 12", "Name should be correct");
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    run_next_test();
+  });
+});
+
+// Opens and tests the details view for add-on 12 with signing required
+add_test(function() {
+  close_manager(gManagerWindow, function() {
+    Services.prefs.setBoolPref("xpinstall.signatures.required", true);
+    open_manager(null, function(aWindow) {
+      gManagerWindow = aWindow;
+      gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+      open_details("addon12@tests.mozilla.org", "extension", function() {
+        is(get("detail-name").textContent, "Test add-on 12", "Name should be correct");
+
+        is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+        is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+        is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+        is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+        is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+        is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+        is_element_hidden(get("detail-error"), "Error message should be hidden");
+        is_element_hidden(get("detail-error-link"), "Error link should be hidden");
+
+        close_manager(gManagerWindow, function() {
+          Services.prefs.setBoolPref("xpinstall.signatures.required", false);
+          open_manager(null, function(aWindow) {
+            gManagerWindow = aWindow;
+            gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+            run_next_test();
+          });
+        });
+      });
+    });
+  });
+});
+
+// Opens and tests the details view for hotfix 1
+add_test(function() {
+  open_details("hotfix@tests.mozilla.org", "extension", function() {
+    is(get("detail-name").textContent, "Test hotfix 1", "Name should be correct");
+
+    is_element_hidden(get("detail-updates-row"), "Updates should be hidden");
+
+    is_element_hidden(get("detail-prefs-btn"), "Preferences button should be hidden");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    run_next_test();
+  });
+});
+
+// Tests that upgrades with onExternalInstall apply immediately
+add_test(function() {
+  open_details("addon1@tests.mozilla.org", "extension", function() {
+    gProvider.createAddons([{
+      id: "addon1@tests.mozilla.org",
+      name: "Test add-on replacement",
+      version: "2.5",
+      description: "Short description replacement",
+      fullDescription: "Longer description replacement",
+      type: "extension",
+      iconURL: "chrome://foo/skin/icon.png",
+      icon64URL: "chrome://foo/skin/icon264.png",
+      sourceURI: Services.io.newURI("http://example.com/foo", null, null),
+      averageRating: 2,
+      optionsURL: "chrome://foo/content/options.xul",
+      applyBackgroundUpdates: AddonManager.AUTOUPDATE_ENABLE,
+      operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+    }]);
+
+    is(get("detail-name").textContent, "Test add-on replacement", "Name should be correct");
+    is_element_visible(get("detail-version"), "Version should not be hidden");
+    is(get("detail-version").value, "2.5", "Version should be correct");
+    is(get("detail-icon").src, "chrome://foo/skin/icon264.png", "Icon should be correct");
+    is_element_hidden(get("detail-creator"), "Creator should be hidden");
+    is_element_hidden(get("detail-screenshot-box"), "Screenshot should be hidden");
+    is(get("detail-desc").textContent, "Short description replacement", "Description should be correct");
+    is(get("detail-fulldesc").textContent, "Longer description replacement", "Full description should be correct");
+
+    is_element_hidden(get("detail-contributions"), "Contributions section should be hidden");
+
+    is_element_hidden(get("detail-dateUpdated"), "Update date should be hidden");
+
+    is_element_visible(get("detail-rating-row"), "Rating row should not be hidden");
+    is_element_visible(get("detail-rating"), "Rating should not be hidden");
+    is(get("detail-rating").averageRating, 2, "Rating should be correct");
+    is_element_hidden(get("detail-reviews"), "Reviews should be hidden");
+
+    is_element_hidden(get("detail-homepage-row"), "Homepage should be hidden");
+
+    is_element_hidden(get("detail-size"), "Size should be hidden");
+
+    is_element_hidden(get("detail-downloads"), "Downloads should be hidden");
+
+    is_element_visible(get("detail-prefs-btn"), "Preferences button should be visible");
+    is_element_hidden(get("detail-enable-btn"), "Enable button should be hidden");
+    is_element_visible(get("detail-disable-btn"), "Disable button should be visible");
+    is_element_visible(get("detail-uninstall-btn"), "Remove button should be visible");
+
+    is_element_hidden(get("detail-warning"), "Warning message should be hidden");
+    is_element_hidden(get("detail-warning-link"), "Warning link should be hidden");
+    is_element_hidden(get("detail-error"), "Error message should be hidden");
+    is_element_hidden(get("detail-pending"), "Pending message should be hidden");
+
+    run_next_test();
+  });
+});
+
+// Check that onPropertyChanges for appDisabled updates the UI
+add_test(function() {
+  info("Checking that onPropertyChanges for appDisabled updates the UI");
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(aAddon) {
+    aAddon.userDisabled = true;
+    aAddon.isCompatible = true;
+    aAddon.appDisabled = false;
+
+    open_details("addon1@tests.mozilla.org", "extension", function() {
+      is(get("detail-view").getAttribute("active"), "false", "Addon should not be marked as active");
+      is_element_hidden(get("detail-warning"), "Warning message should not be visible");
+
+      info("Making addon incompatible and appDisabled");
+      aAddon.isCompatible = false;
+      aAddon.appDisabled = true;
+
+      is(get("detail-view").getAttribute("active"), "false", "Addon should not be marked as active");
+      is_element_visible(get("detail-warning"), "Warning message should be visible");
+      is(get("detail-warning").textContent, "Test add-on replacement is incompatible with " + gApp + " " + gVersion + ".", "Warning message should be correct");
+
+      run_next_test();
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_discovery.js b/toolkit/mozapps/webextensions/test/browser/browser_discovery.js
new file mode 100644
index 000000000..ec336df2d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_discovery.js
@@ -0,0 +1,651 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that the discovery view loads properly
+
+const MAIN_URL = "https://example.com/" + RELATIVE_DIR + "discovery.html";
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gProvider;
+
+var gLoadCompleteCallback = null;
+
+var gProgressListener = {
+  onStateChange: function(aWebProgress, aRequest, aStateFlags, aStatus) {
+    // Only care about the network stop status events
+    if (!(aStateFlags & (Ci.nsIWebProgressListener.STATE_IS_NETWORK)) ||
+        !(aStateFlags & (Ci.nsIWebProgressListener.STATE_STOP)))
+      return;
+
+    if (gLoadCompleteCallback)
+      executeSoon(gLoadCompleteCallback);
+    gLoadCompleteCallback = null;
+  },
+
+  onLocationChange: function() { },
+  onSecurityChange: function() { },
+  onProgressChange: function() { },
+  onStatusChange: function() { },
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
+                                         Ci.nsISupportsWeakReference]),
+};
+
+function test() {
+  // Switch to a known url
+  Services.prefs.setCharPref(PREF_DISCOVERURL, MAIN_URL);
+  // Temporarily enable caching
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "Test add-on 1",
+    type: "extension",
+    version: "2.2",
+    isCompatible: false,
+    blocklistState: Ci.nsIBlocklistService.STATE_SOFTBLOCKED,
+    userDisabled: false
+  }, {
+    id: "addon2@tests.mozilla.org",
+    name: "Test add-on 2",
+    type: "plugin",
+    version: "3.1.5",
+    isCompatible: true,
+    blocklistState: Ci.nsIBlocklistService.STATE_NOT_BLOCKED,
+    userDisabled: false
+  }, {
+    id: "addon3@tests.mozilla.org",
+    name: "Test add-on 3",
+    type: "theme",
+    version: "1.2b1",
+    isCompatible: false,
+    blocklistState: Ci.nsIBlocklistService.STATE_BLOCKED,
+    userDisabled: true
+  }]);
+
+  run_next_test();
+}
+
+function end_test() {
+  finish();
+}
+
+function getURL(aBrowser) {
+  if (gManagerWindow.document.getElementById("discover-view").selectedPanel !=
+      aBrowser)
+    return null;
+
+  var url = aBrowser.currentURI.spec;
+  var pos = url.indexOf("#");
+  if (pos != -1)
+    return url.substring(0, pos);
+  return url;
+}
+
+function getHash(aBrowser) {
+  if (gManagerWindow.document.getElementById("discover-view").selectedPanel !=
+      aBrowser)
+    return null;
+
+  var url = aBrowser.currentURI.spec;
+  var pos = url.indexOf("#");
+  if (pos != -1)
+    return decodeURIComponent(url.substring(pos + 1));
+  return null;
+}
+
+function testHash(aBrowser, aTestAddonVisible, aCallback) {
+  var hash = getHash(aBrowser);
+  isnot(hash, null, "There should be a hash");
+  try {
+    var data = JSON.parse(hash);
+  }
+  catch (e) {
+    ok(false, "Hash should have been valid JSON: " + e);
+    aCallback();
+    return;
+  }
+  is(typeof data, "object", "Hash should be a JS object");
+
+  // Ensure that at least the test add-ons are present
+  if (aTestAddonVisible[0])
+    ok("addon1@tests.mozilla.org" in data, "Test add-on 1 should be listed");
+  else
+    ok(!("addon1@tests.mozilla.org" in data), "Test add-on 1 should not be listed");
+  if (aTestAddonVisible[1])
+    ok("addon2@tests.mozilla.org" in data, "Test add-on 2 should be listed");
+  else
+    ok(!("addon2@tests.mozilla.org" in data), "Test add-on 2 should not be listed");
+  if (aTestAddonVisible[2])
+    ok("addon3@tests.mozilla.org" in data, "Test add-on 3 should be listed");
+  else
+    ok(!("addon3@tests.mozilla.org" in data), "Test add-on 3 should not be listed");
+
+  // Test against all the add-ons the manager knows about since plugins and
+  // app extensions may exist
+  AddonManager.getAllAddons(function(aAddons) {
+    for (let addon of aAddons) {
+      if (!(addon.id in data)) {
+        // Test add-ons will have shown an error if necessary above
+        if (addon.id.substring(6) != "@tests.mozilla.org")
+          ok(false, "Add-on " + addon.id + " was not included in the data");
+        continue;
+      }
+
+      info("Testing data for add-on " + addon.id);
+      var addonData = data[addon.id];
+      is(addonData.name, addon.name, "Name should be correct");
+      is(addonData.version, addon.version, "Version should be correct");
+      is(addonData.type, addon.type, "Type should be correct");
+      is(addonData.userDisabled, addon.userDisabled, "userDisabled should be correct");
+      is(addonData.isBlocklisted, addon.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED, "blocklisted should be correct");
+      is(addonData.isCompatible, addon.isCompatible, "isCompatible should be correct");
+    }
+    aCallback();
+  });
+}
+
+function isLoading() {
+  var loading = gManagerWindow.document.getElementById("discover-view").selectedPanel ==
+                gManagerWindow.document.getElementById("discover-loading");
+  if (loading) {
+    is_element_visible(gManagerWindow.document.querySelector("#discover-loading .loading"),
+                       "Loading message should be visible when its panel is the selected panel");
+  }
+  return loading;
+}
+
+function isError() {
+  return gManagerWindow.document.getElementById("discover-view").selectedPanel ==
+         gManagerWindow.document.getElementById("discover-error");
+}
+
+function clickLink(aId, aCallback) {
+  var browser = gManagerWindow.document.getElementById("discover-browser");
+  browser.addProgressListener(gProgressListener);
+
+  gLoadCompleteCallback = function() {
+    browser.removeProgressListener(gProgressListener);
+    aCallback();
+  };
+
+  var link = browser.contentDocument.getElementById(aId);
+  EventUtils.sendMouseEvent({type: "click"}, link);
+
+  executeSoon(function() {
+    ok(isLoading(), "Clicking a link should show the loading pane");
+  });
+}
+
+// Tests that switching to the discovery view displays the right url
+add_test(function() {
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    gCategoryUtilities.openType("discover", function() {
+      var browser = gManagerWindow.document.getElementById("discover-browser");
+      is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+      testHash(browser, [true, true, true], function() {
+        close_manager(gManagerWindow, run_next_test);
+      });
+    });
+
+    ok(isLoading(), "Should be loading at first");
+  });
+});
+
+// Tests that loading the add-ons manager with the discovery view as the last
+// selected view displays the right url
+add_test(function() {
+  // Hide one of the test add-ons
+  Services.prefs.setBoolPref("extensions.addon2@tests.mozilla.org.getAddons.cache.enabled", false);
+  Services.prefs.setBoolPref("extensions.addon3@tests.mozilla.org.getAddons.cache.enabled", true);
+
+  open_manager(null, function(aWindow) {
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    is(gCategoryUtilities.selectedCategory, "discover", "Should have loaded the right view");
+
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+    testHash(browser, [true, false, true], function() {
+      close_manager(gManagerWindow, run_next_test);
+    });
+  }, function(aWindow) {
+    gManagerWindow = aWindow;
+    ok(isLoading(), "Should be loading at first");
+  });
+});
+
+// Tests that loading the add-ons manager with the discovery view as the initial
+// view displays the right url
+add_test(function() {
+  Services.prefs.clearUserPref("extensions.addon2@tests.mozilla.org.getAddons.cache.enabled");
+  Services.prefs.setBoolPref("extensions.addon3@tests.mozilla.org.getAddons.cache.enabled", false);
+
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    gCategoryUtilities.openType("extension", function() {
+      close_manager(gManagerWindow, function() {
+        open_manager("addons://discover/", function(aWindow) {
+          gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+          is(gCategoryUtilities.selectedCategory, "discover", "Should have loaded the right view");
+
+          var browser = gManagerWindow.document.getElementById("discover-browser");
+          is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+          testHash(browser, [true, true, false], function() {
+            Services.prefs.clearUserPref("extensions.addon3@tests.mozilla.org.getAddons.cache.enabled");
+            close_manager(gManagerWindow, run_next_test);
+          });
+        }, function(aWindow) {
+          gManagerWindow = aWindow;
+          ok(isLoading(), "Should be loading at first");
+        });
+      });
+    });
+  });
+});
+
+// Tests that switching to the discovery view displays the right url
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, false);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    gCategoryUtilities.openType("discover", function() {
+      var browser = gManagerWindow.document.getElementById("discover-browser");
+      is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+      is(getHash(browser), null, "Hash should not have been passed");
+      close_manager(gManagerWindow, run_next_test);
+    });
+  });
+});
+
+// Tests that loading the add-ons manager with the discovery view as the last
+// selected view displays the right url
+add_test(function() {
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    is(gCategoryUtilities.selectedCategory, "discover", "Should have loaded the right view");
+
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+    is(getHash(browser), null, "Hash should not have been passed");
+    close_manager(gManagerWindow, run_next_test);
+  });
+});
+
+// Tests that loading the add-ons manager with the discovery view as the initial
+// view displays the right url
+add_test(function() {
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    gCategoryUtilities.openType("extension", function() {
+      close_manager(gManagerWindow, function() {
+        open_manager("addons://discover/", function(aWindow) {
+          gManagerWindow = aWindow;
+          gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+          is(gCategoryUtilities.selectedCategory, "discover", "Should have loaded the right view");
+
+          var browser = gManagerWindow.document.getElementById("discover-browser");
+          is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+          is(getHash(browser), null, "Hash should not have been passed");
+          close_manager(gManagerWindow, run_next_test);
+        });
+      });
+    });
+  });
+});
+
+// Tests that navigating to an insecure page fails
+add_test(function() {
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+    clickLink("link-http", function() {
+      ok(isError(), "Should have shown the error page");
+
+      gCategoryUtilities.openType("extension", function() {
+        gCategoryUtilities.openType("discover", function() {
+          is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+          close_manager(gManagerWindow, run_next_test);
+        });
+        ok(isLoading(), "Should start loading again");
+      });
+    });
+  });
+});
+
+// Tests that navigating to a different domain fails
+add_test(function() {
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+    clickLink("link-domain", function() {
+      ok(isError(), "Should have shown the error page");
+
+      gCategoryUtilities.openType("extension", function() {
+        gCategoryUtilities.openType("discover", function() {
+          is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+          close_manager(gManagerWindow, run_next_test);
+        });
+        ok(isLoading(), "Should start loading again");
+      });
+    });
+  });
+});
+
+// Tests that navigating to a missing page fails
+add_test(function() {
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+    clickLink("link-bad", function() {
+      ok(isError(), "Should have shown the error page");
+
+      gCategoryUtilities.openType("extension", function() {
+        gCategoryUtilities.openType("discover", function() {
+          is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+          close_manager(gManagerWindow, run_next_test);
+        });
+        ok(isLoading(), "Should start loading again");
+      });
+    });
+  });
+});
+
+// Tests that navigating to a page on the same domain works
+add_test(function() {
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+    clickLink("link-good", function() {
+      is(getURL(browser), "https://example.com/" + RELATIVE_DIR + "releaseNotes.xhtml", "Should have loaded the right url");
+
+      gCategoryUtilities.openType("extension", function() {
+        gCategoryUtilities.openType("discover", function() {
+          is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+          close_manager(gManagerWindow, run_next_test);
+        });
+      });
+    });
+  });
+});
+
+// Tests repeated navigation to the same page followed by a navigation to a
+// different domain
+add_test(function() {
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+    var count = 10;
+    function clickAgain(aCallback) {
+      if (count-- == 0)
+        aCallback();
+      else
+        clickLink("link-normal", clickAgain.bind(null, aCallback));
+    }
+
+    clickAgain(function() {
+      is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+      clickLink("link-domain", function() {
+        ok(isError(), "Should have shown the error page");
+
+        gCategoryUtilities.openType("extension", function() {
+          gCategoryUtilities.openType("discover", function() {
+            is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+            close_manager(gManagerWindow, run_next_test);
+          });
+          ok(isLoading(), "Should start loading again");
+        });
+      });
+    });
+  });
+});
+
+// Loading an insecure main page should work if that is what the prefs say, should
+// also be able to navigate to a https page and back again
+add_test(function() {
+  Services.prefs.setCharPref(PREF_DISCOVERURL, TESTROOT + "discovery.html");
+
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), TESTROOT + "discovery.html", "Should have loaded the right url");
+
+    clickLink("link-normal", function() {
+      is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+      clickLink("link-http", function() {
+        is(getURL(browser), TESTROOT + "discovery.html", "Should have loaded the right url");
+
+        close_manager(gManagerWindow, run_next_test);
+      });
+    });
+  });
+});
+
+// Stopping the initial load should display the error page and then correctly
+// reload when switching away and back again
+add_test(function() {
+  Services.prefs.setCharPref(PREF_DISCOVERURL, MAIN_URL);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+
+    EventUtils.synthesizeMouse(gCategoryUtilities.get("discover"), 2, 2, { }, gManagerWindow);
+
+    wait_for_view_load(gManagerWindow, function() {
+      ok(isError(), "Should have shown the error page");
+
+      gCategoryUtilities.openType("extension", function() {
+        EventUtils.synthesizeMouse(gCategoryUtilities.get("discover"), 2, 2, { }, gManagerWindow);
+
+        wait_for_view_load(gManagerWindow, function() {
+          ok(isError(), "Should have shown the error page");
+
+          gCategoryUtilities.openType("extension", function() {
+            gCategoryUtilities.openType("discover", function() {
+              is(getURL(browser), MAIN_URL, "Should have loaded the right url");
+
+              close_manager(gManagerWindow, run_next_test);
+            });
+          });
+        });
+
+        ok(isLoading(), "Should be loading");
+        // This will stop the real page load
+        browser.stop();
+      });
+    });
+
+    ok(isLoading(), "Should be loading");
+    // This will actually stop the about:blank load
+    browser.stop();
+  });
+});
+
+// Test for Bug 703929 - Loading the discover view from a chrome XUL file fails when
+// the add-on manager is reopened.
+add_test(function() {
+  const url = "chrome://mochitests/content/" +  RELATIVE_DIR + "addon_about.xul";
+  Services.prefs.setCharPref(PREF_DISCOVERURL, url);
+
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), url, "Loading a chrome XUL file should work");
+
+    restart_manager(gManagerWindow, "addons://discover/", function(aWindow) {
+      gManagerWindow = aWindow;
+      gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+      var browser = gManagerWindow.document.getElementById("discover-browser");
+      is(getURL(browser), url, "Should be able to load the chrome XUL file a second time");
+
+      close_manager(gManagerWindow, run_next_test);
+    });
+  });
+});
+
+// Bug 711693 - Send the compatibility mode when loading the Discovery pane
+add_test(function() {
+  info("Test '%COMPATIBILITY_MODE%' in the URL is correctly replaced by 'normal'");
+  Services.prefs.setCharPref(PREF_DISCOVERURL,  MAIN_URL + "?mode=%COMPATIBILITY_MODE%");
+  Services.prefs.setBoolPref(PREF_STRICT_COMPAT, false);
+
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), MAIN_URL + "?mode=normal", "Should have loaded the right url");
+    close_manager(gManagerWindow, run_next_test);
+  });
+});
+
+add_test(function() {
+  info("Test '%COMPATIBILITY_MODE%' in the URL is correctly replaced by 'strict'");
+  Services.prefs.setBoolPref(PREF_STRICT_COMPAT, true);
+
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), MAIN_URL + "?mode=strict", "Should have loaded the right url");
+    close_manager(gManagerWindow, run_next_test);
+  });
+});
+
+add_test(function() {
+  info("Test '%COMPATIBILITY_MODE%' in the URL is correctly replaced by 'ignore'");
+  Services.prefs.setBoolPref(PREF_CHECK_COMPATIBILITY, false);
+
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+    var browser = gManagerWindow.document.getElementById("discover-browser");
+    is(getURL(browser), MAIN_URL + "?mode=ignore", "Should have loaded the right url");
+    close_manager(gManagerWindow, run_next_test);
+  });
+});
+
+// Test for Bug 601442 - extensions.getAddons.showPane need to be update
+// for the new addon manager.
+function bug_601442_test_elements(visible) {
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    if (visible)
+      ok(gCategoryUtilities.isTypeVisible("discover"), "Discover category should be visible");
+    else
+      ok(!gCategoryUtilities.isTypeVisible("discover"), "Discover category should not be visible");
+
+    gManagerWindow.loadView("addons://list/dictionary");
+    wait_for_view_load(gManagerWindow, function(aManager) {
+      var button = aManager.document.getElementById("discover-button-install");
+      if (visible)
+        ok(!is_hidden(button), "Discover button should be visible!");
+      else
+        ok(is_hidden(button), "Discover button should not be visible!");
+
+      close_manager(gManagerWindow, run_next_test);
+    });
+  });
+}
+
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_DISCOVER_ENABLED, false);
+  Services.prefs.setBoolPref(PREF_XPI_ENABLED, true);
+  bug_601442_test_elements(false);
+});
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_DISCOVER_ENABLED, true);
+  Services.prefs.setBoolPref(PREF_XPI_ENABLED, false);
+  bug_601442_test_elements(false);
+});
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_DISCOVER_ENABLED, false);
+  Services.prefs.setBoolPref(PREF_XPI_ENABLED, false);
+  bug_601442_test_elements(false);
+});
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_DISCOVER_ENABLED, true);
+  Services.prefs.setBoolPref(PREF_XPI_ENABLED, true);
+  bug_601442_test_elements(true);
+});
+
+// Test for Bug 1132971 - if extensions.getAddons.showPane is false,
+// the extensions pane should show by default
+add_test(function() {
+  Services.prefs.clearUserPref(PREF_UI_LASTCATEGORY);
+  Services.prefs.setBoolPref(PREF_DISCOVER_ENABLED, false);
+
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    is(gCategoryUtilities.selectedCategory, "extension", "Should be showing the extension view");
+    close_manager(gManagerWindow, run_next_test);
+    Services.prefs.clearUserPref(PREF_DISCOVER_ENABLED);
+  });
+});
+
+// Test for Bug 1219495 - should show placeholder content when offline
+add_test(function() {
+  // set a URL to cause an error
+  Services.prefs.setCharPref(PREF_DISCOVERURL, "https://nocert.example.com/");
+
+  open_manager("addons://discover/", function(aWindow) {
+    gManagerWindow = aWindow;
+
+    ok(isError(), "Should have shown the placeholder content");
+
+    close_manager(gManagerWindow, run_next_test);
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_discovery_install.js b/toolkit/mozapps/webextensions/test/browser/browser_discovery_install.js
new file mode 100644
index 000000000..63516bd53
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_discovery_install.js
@@ -0,0 +1,133 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that the discovery view can install add-ons correctly
+
+const MAIN_URL = "https://example.com/" + RELATIVE_DIR + "discovery_install.html";
+const GOOD_FRAMED_URL = "https://example.com/" + RELATIVE_DIR + "discovery_frame.html";
+const BAD_FRAMED_URL = "https://example.org/" + RELATIVE_DIR + "discovery_frame.html";
+
+const PREF_INSTALL_REQUIREBUILTINCERTS = "extensions.install.requireBuiltInCerts";
+
+// Temporarily enable caching
+Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+// Allow SSL from non-built-in certs
+Services.prefs.setBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, false);
+// Allow installs from the test site
+Services.perms.add(NetUtil.newURI("https://example.com/"), "install",
+                   Ci.nsIPermissionManager.ALLOW_ACTION);
+Services.perms.add(NetUtil.newURI("https://example.org/"), "install",
+                   Ci.nsIPermissionManager.ALLOW_ACTION);
+
+registerCleanupFunction(() => {
+  Services.perms.remove(NetUtil.newURI("https://example.com/"), "install");
+  Services.perms.remove(NetUtil.newURI("https://example.org/"), "install");
+  Services.prefs.clearUserPref(PREF_INSTALL_REQUIREBUILTINCERTS);
+});
+
+function clickLink(frameLoader, id) {
+  let link = frameLoader.contentDocument.getElementById(id);
+  EventUtils.sendMouseEvent({type: "click"}, link);
+}
+
+function waitForInstall() {
+  return new Promise(resolve => {
+    wait_for_window_open((window) => {
+      is(window.location, "chrome://mozapps/content/xpinstall/xpinstallConfirm.xul",
+         "Should have seen the install window");
+      window.document.documentElement.cancelDialog();
+      resolve();
+    });
+  });
+}
+
+function waitForFail() {
+  return new Promise(resolve => {
+    let listener = (subject, topic, data) => {
+      Services.obs.removeObserver(listener, topic);
+      resolve();
+    }
+    Services.obs.addObserver(listener, "addon-install-origin-blocked", false);
+  });
+}
+
+// Tests that navigating to an XPI attempts to install correctly
+add_task(function* test_install_direct() {
+  Services.prefs.setCharPref(PREF_DISCOVERURL, MAIN_URL);
+
+  let managerWindow = yield open_manager("addons://discover/");
+  let browser = managerWindow.document.getElementById("discover-browser");
+
+  clickLink(browser, "install-direct");
+  yield waitForInstall();
+
+  yield close_manager(managerWindow);
+});
+
+// Tests that installing via JS works correctly
+add_task(function* test_install_js() {
+  Services.prefs.setCharPref(PREF_DISCOVERURL, MAIN_URL);
+
+  let managerWindow = yield open_manager("addons://discover/");
+  let browser = managerWindow.document.getElementById("discover-browser");
+
+  clickLink(browser, "install-js");
+  yield waitForInstall();
+
+  yield close_manager(managerWindow);
+});
+
+// Installing from an inner-frame of the same origin should work
+add_task(function* test_install_inner_direct() {
+  Services.prefs.setCharPref(PREF_DISCOVERURL, GOOD_FRAMED_URL);
+
+  let managerWindow = yield open_manager("addons://discover/");
+  let browser = managerWindow.document.getElementById("discover-browser");
+  let frame = browser.contentDocument.getElementById("frame");
+
+  clickLink(frame, "install-direct");
+  yield waitForInstall();
+
+  yield close_manager(managerWindow);
+});
+
+add_task(function* test_install_inner_js() {
+  Services.prefs.setCharPref(PREF_DISCOVERURL, GOOD_FRAMED_URL);
+
+  let managerWindow = yield open_manager("addons://discover/");
+  let browser = managerWindow.document.getElementById("discover-browser");
+  let frame = browser.contentDocument.getElementById("frame");
+
+  clickLink(frame, "install-js");
+  yield waitForInstall();
+
+  yield close_manager(managerWindow);
+});
+
+// Installing from an inner-frame of a different origin should fail
+add_task(function* test_install_xorigin_direct() {
+  Services.prefs.setCharPref(PREF_DISCOVERURL, BAD_FRAMED_URL);
+
+  let managerWindow = yield open_manager("addons://discover/");
+  let browser = managerWindow.document.getElementById("discover-browser");
+  let frame = browser.contentDocument.getElementById("frame");
+
+  clickLink(frame, "install-direct");
+  yield waitForFail();
+
+  yield close_manager(managerWindow);
+});
+
+add_task(function* test_install_xorigin_js() {
+  Services.prefs.setCharPref(PREF_DISCOVERURL, BAD_FRAMED_URL);
+
+  let managerWindow = yield open_manager("addons://discover/");
+  let browser = managerWindow.document.getElementById("discover-browser");
+  let frame = browser.contentDocument.getElementById("frame");
+
+  clickLink(frame, "install-js");
+  yield waitForFail();
+
+  yield close_manager(managerWindow);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_dragdrop.js b/toolkit/mozapps/webextensions/test/browser/browser_dragdrop.js
new file mode 100644
index 000000000..960e7e933
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_dragdrop.js
@@ -0,0 +1,234 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This tests simulated drag and drop of files into the add-ons manager.
+// We test with the add-ons manager in its own tab if in Firefox otherwise
+// in its own window.
+// Tests are only simulations of the drag and drop events, we cannot really do
+// this automatically.
+
+// Instead of loading EventUtils.js into the test scope in browser-test.js for all tests,
+// we only need EventUtils.js for a few files which is why we are using loadSubScript.
+var gManagerWindow;
+var EventUtils = {};
+this._scriptLoader = Cc["@mozilla.org/moz/jssubscript-loader;1"].
+                     getService(Ci.mozIJSSubScriptLoader);
+this._scriptLoader.loadSubScript("chrome://mochikit/content/tests/SimpleTest/EventUtils.js", EventUtils);
+
+// This listens for the next opened window and checks it is of the right url.
+// opencallback is called when the new window is fully loaded
+// closecallback is called when the window is closed
+function WindowOpenListener(url, opencallback, closecallback) {
+  this.url = url;
+  this.opencallback = opencallback;
+  this.closecallback = closecallback;
+
+  var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
+                     .getService(Components.interfaces.nsIWindowMediator);
+  wm.addListener(this);
+}
+
+WindowOpenListener.prototype = {
+  url: null,
+  opencallback: null,
+  closecallback: null,
+  window: null,
+  domwindow: null,
+
+  handleEvent: function(event) {
+    is(this.domwindow.document.location.href, this.url, "Should have opened the correct window");
+
+    this.domwindow.removeEventListener("load", this, false);
+    // Allow any other load handlers to execute
+    var self = this;
+    executeSoon(function() { self.opencallback(self.domwindow); } );
+  },
+
+  onWindowTitleChange: function(window, title) {
+  },
+
+  onOpenWindow: function(window) {
+    if (this.window)
+      return;
+
+    this.window = window;
+    this.domwindow = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
+                           .getInterface(Components.interfaces.nsIDOMWindow);
+    this.domwindow.addEventListener("load", this, false);
+  },
+
+  onCloseWindow: function(window) {
+    if (this.window != window)
+      return;
+
+    var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
+                       .getService(Components.interfaces.nsIWindowMediator);
+    wm.removeListener(this);
+    this.opencallback = null;
+    this.window = null;
+    this.domwindow = null;
+
+    // Let the window close complete
+    executeSoon(this.closecallback);
+    this.closecallback = null;
+  }
+};
+
+var gSawInstallNotification = false;
+var gInstallNotificationObserver = {
+  observe: function(aSubject, aTopic, aData) {
+    var installInfo = aSubject.QueryInterface(Ci.amIWebInstallInfo);
+    if (gTestInWindow)
+      is(installInfo.browser, null, "Notification should have a null browser");
+    else
+      isnot(installInfo.browser, null, "Notification should have non-null browser");
+    gSawInstallNotification = true;
+    Services.obs.removeObserver(this, "addon-install-started");
+  }
+};
+
+
+function test() {
+  waitForExplicitFinish();
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+function test_confirmation(aWindow, aExpectedURLs) {
+  var list = aWindow.document.getElementById("itemList");
+  is(list.childNodes.length, aExpectedURLs.length, "Should be the right number of installs");
+
+  for (let url of aExpectedURLs) {
+    let found = false;
+    for (let node of list.children) {
+      if (node.url == url) {
+        found = true;
+        break;
+      }
+    }
+    ok(found, "Should have seen " + url + " in the list");
+  }
+
+  aWindow.document.documentElement.cancelDialog();
+}
+
+// Simulates dropping a URL onto the manager
+add_test(function() {
+  var url = TESTROOT + "addons/browser_dragdrop1.xpi";
+
+  Services.obs.addObserver(gInstallNotificationObserver,
+                           "addon-install-started", false);
+
+  new WindowOpenListener(INSTALL_URI, function(aWindow) {
+    test_confirmation(aWindow, [url]);
+  }, function() {
+    is(gSawInstallNotification, true, "Should have seen addon-install-started notification.");
+    run_next_test();
+  });
+
+  var viewContainer = gManagerWindow.document.getElementById("view-port");
+  var effect = EventUtils.synthesizeDrop(viewContainer, viewContainer,
+               [[{type: "text/x-moz-url", data: url}]],
+               "copy", gManagerWindow);
+  is(effect, "copy", "Drag should be accepted");
+});
+
+// Simulates dropping a file onto the manager
+add_test(function() {
+  var fileurl = get_addon_file_url("browser_dragdrop1.xpi");
+
+  Services.obs.addObserver(gInstallNotificationObserver,
+                           "addon-install-started", false);
+
+  new WindowOpenListener(INSTALL_URI, function(aWindow) {
+    test_confirmation(aWindow, [fileurl.spec]);
+  }, function() {
+    is(gSawInstallNotification, true, "Should have seen addon-install-started notification.");
+    run_next_test();
+  });
+
+  var viewContainer = gManagerWindow.document.getElementById("view-port");
+  var effect = EventUtils.synthesizeDrop(viewContainer, viewContainer,
+               [[{type: "application/x-moz-file", data: fileurl.file}]],
+               "copy", gManagerWindow);
+  is(effect, "copy", "Drag should be accepted");
+});
+
+// Simulates dropping two urls onto the manager
+add_test(function() {
+  var url1 = TESTROOT + "addons/browser_dragdrop1.xpi";
+  var url2 = TESTROOT2 + "addons/browser_dragdrop2.xpi";
+
+  Services.obs.addObserver(gInstallNotificationObserver,
+                           "addon-install-started", false);
+
+  new WindowOpenListener(INSTALL_URI, function(aWindow) {
+    test_confirmation(aWindow, [url1, url2]);
+  }, function() {
+    is(gSawInstallNotification, true, "Should have seen addon-install-started notification.");
+    run_next_test();
+  });
+
+  var viewContainer = gManagerWindow.document.getElementById("view-port");
+  var effect = EventUtils.synthesizeDrop(viewContainer, viewContainer,
+               [[{type: "text/x-moz-url", data: url1}],
+                [{type: "text/x-moz-url", data: url2}]],
+               "copy", gManagerWindow);
+  is(effect, "copy", "Drag should be accepted");
+});
+
+// Simulates dropping two files onto the manager
+add_test(function() {
+  var fileurl1 = get_addon_file_url("browser_dragdrop1.xpi");
+  var fileurl2 = get_addon_file_url("browser_dragdrop2.xpi");
+
+  Services.obs.addObserver(gInstallNotificationObserver,
+                           "addon-install-started", false);
+
+  new WindowOpenListener(INSTALL_URI, function(aWindow) {
+    test_confirmation(aWindow, [fileurl1.spec, fileurl2.spec]);
+  }, function() {
+    is(gSawInstallNotification, true, "Should have seen addon-install-started notification.");
+    run_next_test();
+  });
+
+  var viewContainer = gManagerWindow.document.getElementById("view-port");
+  var effect = EventUtils.synthesizeDrop(viewContainer, viewContainer,
+               [[{type: "application/x-moz-file", data: fileurl1.file}],
+                [{type: "application/x-moz-file", data: fileurl2.file}]],
+               "copy", gManagerWindow);
+  is(effect, "copy", "Drag should be accepted");
+});
+
+// Simulates dropping a file and a url onto the manager (weird, but should still work)
+add_test(function() {
+  var url = TESTROOT + "addons/browser_dragdrop1.xpi";
+  var fileurl = get_addon_file_url("browser_dragdrop2.xpi");
+
+  Services.obs.addObserver(gInstallNotificationObserver,
+                           "addon-install-started", false);
+
+  new WindowOpenListener(INSTALL_URI, function(aWindow) {
+    test_confirmation(aWindow, [url, fileurl.spec]);
+  }, function() {
+    is(gSawInstallNotification, true, "Should have seen addon-install-started notification.");
+    run_next_test();
+  });
+
+  var viewContainer = gManagerWindow.document.getElementById("view-port");
+  var effect = EventUtils.synthesizeDrop(viewContainer, viewContainer,
+               [[{type: "text/x-moz-url", data: url}],
+                [{type: "application/x-moz-file", data: fileurl.file}]],
+               "copy", gManagerWindow);
+  is(effect, "copy", "Drag should be accepted");
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_eula.js b/toolkit/mozapps/webextensions/test/browser/browser_eula.js
new file mode 100644
index 000000000..befe9f1f2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_eula.js
@@ -0,0 +1,85 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that the eula is shown correctly for search results
+
+var gManagerWindow;
+var gCategoryUtilities;
+
+var gApp = document.getElementById("bundle_brand").getString("brandShortName");
+var gSearchCount = 0;
+
+function test() {
+  requestLongerTimeout(2);
+  waitForExplicitFinish();
+
+  // Turn on searching for this test
+  Services.prefs.setIntPref(PREF_SEARCH_MAXRESULTS, 15);
+  Services.prefs.setCharPref("extensions.getAddons.search.url", TESTROOT + "browser_eula.xml");
+
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, finish);
+}
+
+function get_node(parent, anonid) {
+  return parent.ownerDocument.getAnonymousElementByAttribute(parent, "anonid", anonid);
+}
+
+function installSearchResult(aCallback) {
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  // Search for something different each time
+  searchBox.value = "foo" + gSearchCount;
+  gSearchCount++;
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    let remote = gManagerWindow.document.getElementById("search-filter-remote")
+    EventUtils.synthesizeMouseAtCenter(remote, { }, gManagerWindow);
+
+    let item = get_addon_element(gManagerWindow, "addon1@tests.mozilla.org");
+    ok(!!item, "Should see the search result in the list");
+
+    let status = get_node(item, "install-status");
+    EventUtils.synthesizeMouseAtCenter(get_node(status, "install-remote-btn"), {}, gManagerWindow);
+
+    item.mInstall.addListener({
+      onInstallEnded: function() {
+        executeSoon(aCallback);
+      }
+    });
+  });
+}
+
+// Install an add-on through the search page, accept the EULA and then undo it
+add_test(function() {
+  // Accept the EULA when it appears
+  let sawEULA = false;
+  wait_for_window_open(function(aWindow) {
+    sawEULA = true;
+    is(aWindow.location.href, "chrome://mozapps/content/extensions/eula.xul", "Window opened should be correct");
+    is(aWindow.document.getElementById("eula").value, "This is the EULA for this add-on", "EULA should be correct");
+
+    aWindow.document.documentElement.acceptDialog();
+  });
+
+  installSearchResult(function() {
+    ok(sawEULA, "Should have seen the EULA");
+
+    AddonManager.getAllInstalls(function(aInstalls) {
+      is(aInstalls.length, 1, "Should be one pending install");
+      aInstalls[0].cancel();
+
+      run_next_test();
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_eula.xml b/toolkit/mozapps/webextensions/test/browser/browser_eula.xml
new file mode 100644
index 000000000..965ab8a0b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_eula.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="1">
+  <addon>
+    <name>Install Tests</name>
+    <type id='1'>Extension</type>
+    <guid>addon1@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test add-on</summary>
+    <description>Test add-on</description>
+    <eula>This is the EULA for this add-on</eula>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="2">http://example.com/browser/toolkit/mozapps/extensions/test/browser/addons/browser_install1_2.xpi</install>
+  </addon>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_experiments.js b/toolkit/mozapps/webextensions/test/browser/browser_experiments.js
new file mode 100644
index 000000000..18a548de5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_experiments.js
@@ -0,0 +1,654 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/Promise.jsm", this);
+
+var {AddonManagerTesting} = Components.utils.import("resource://testing-common/AddonManagerTesting.jsm", {});
+var {HttpServer} = Components.utils.import("resource://testing-common/httpd.js", {});
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gExperiments;
+var gHttpServer;
+
+var gSavedManifestURI;
+var gIsEnUsLocale;
+
+const SEC_IN_ONE_DAY = 24 * 60 * 60;
+const MS_IN_ONE_DAY  = SEC_IN_ONE_DAY * 1000;
+
+function getExperimentAddons() {
+  let deferred = Promise.defer();
+  AddonManager.getAddonsByTypes(["experiment"], (addons) => {
+    deferred.resolve(addons);
+  });
+  return deferred.promise;
+}
+
+function getInstallItem() {
+  let doc = gManagerWindow.document;
+  let view = get_current_view(gManagerWindow);
+  let list = doc.getElementById("addon-list");
+
+  let node = list.firstChild;
+  while (node) {
+    if (node.getAttribute("status") == "installing") {
+      return node;
+    }
+    node = node.nextSibling;
+  }
+
+  return null;
+}
+
+function patchPolicy(policy, data) {
+  for (let key of Object.keys(data)) {
+    Object.defineProperty(policy, key, {
+      value: data[key],
+      writable: true,
+    });
+  }
+}
+
+function defineNow(policy, time) {
+  patchPolicy(policy, { now: () => new Date(time) });
+}
+
+function openDetailsView(aId) {
+  let item = get_addon_element(gManagerWindow, aId);
+  Assert.ok(item, "Should have got add-on element.");
+  is_element_visible(item, "Add-on element should be visible.");
+
+  EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
+  EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
+
+  let deferred = Promise.defer();
+  wait_for_view_load(gManagerWindow, deferred.resolve);
+  return deferred.promise;
+}
+
+function clickRemoveButton(addonElement) {
+  let btn = gManagerWindow.document.getAnonymousElementByAttribute(addonElement, "anonid", "remove-btn");
+  if (!btn) {
+    return Promise.reject();
+  }
+
+  EventUtils.synthesizeMouseAtCenter(btn, { clickCount: 1 }, gManagerWindow);
+  let deferred = Promise.defer();
+  setTimeout(deferred.resolve, 0);
+  return deferred;
+}
+
+function clickUndoButton(addonElement) {
+  let btn = gManagerWindow.document.getAnonymousElementByAttribute(addonElement, "anonid", "undo-btn");
+  if (!btn) {
+    return Promise.reject();
+  }
+
+  EventUtils.synthesizeMouseAtCenter(btn, { clickCount: 1 }, gManagerWindow);
+  let deferred = Promise.defer();
+  setTimeout(deferred.resolve, 0);
+  return deferred;
+}
+
+add_task(function* initializeState() {
+  gManagerWindow = yield open_manager();
+  gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+  registerCleanupFunction(() => {
+    Services.prefs.clearUserPref("experiments.enabled");
+    Services.prefs.clearUserPref("toolkit.telemetry.enabled");
+    if (gHttpServer) {
+      gHttpServer.stop(() => {});
+      if (gSavedManifestURI !== undefined) {
+        Services.prefs.setCharPref("experments.manifest.uri", gSavedManifestURI);
+      }
+    }
+    if (gExperiments) {
+      let tmp = {};
+      Cu.import("resource:///modules/experiments/Experiments.jsm", tmp);
+      gExperiments._policy = new tmp.Experiments.Policy();
+    }
+  });
+
+  let chrome = Cc["@mozilla.org/chrome/chrome-registry;1"].getService(Ci.nsIXULChromeRegistry);
+  gIsEnUsLocale = chrome.getSelectedLocale("global") == "en-US";
+
+  // The Experiments Manager will interfere with us by preventing installs
+  // of experiments it doesn't know about. We remove it from the equation
+  // because here we are only concerned with core Addon Manager operation,
+  // not the superset Experiments Manager has imposed.
+  if ("@mozilla.org/browser/experiments-service;1" in Components.classes) {
+    let tmp = {};
+    Cu.import("resource:///modules/experiments/Experiments.jsm", tmp);
+    // There is a race condition between XPCOM service initialization and
+    // this test running. We have to initialize the instance first, then
+    // uninitialize it to prevent this.
+    gExperiments = tmp.Experiments.instance();
+    yield gExperiments._mainTask;
+    yield gExperiments.uninit();
+  }
+});
+
+// On an empty profile with no experiments, the experiment category
+// should be hidden.
+add_task(function* testInitialState() {
+  Assert.ok(gCategoryUtilities.get("experiment", false), "Experiment tab is defined.");
+  Assert.ok(!gCategoryUtilities.isTypeVisible("experiment"), "Experiment tab hidden by default.");
+});
+
+add_task(function* testExperimentInfoNotVisible() {
+  yield gCategoryUtilities.openType("extension");
+  let el = gManagerWindow.document.getElementsByClassName("experiment-info-container")[0];
+  is_element_hidden(el, "Experiment info not visible on other types.");
+});
+
+// If we have an active experiment, we should see the experiments tab
+// and that tab should have some messages.
+add_task(function* testActiveExperiment() {
+  let addon = yield install_addon("addons/browser_experiment1.xpi");
+
+  Assert.ok(addon.userDisabled, "Add-on is disabled upon initial install.");
+  Assert.equal(addon.isActive, false, "Add-on is not active.");
+
+  Assert.ok(gCategoryUtilities.isTypeVisible("experiment"), "Experiment tab visible.");
+
+  yield gCategoryUtilities.openType("experiment");
+  let el = gManagerWindow.document.getElementsByClassName("experiment-info-container")[0];
+  is_element_visible(el, "Experiment info is visible on experiment tab.");
+});
+
+add_task(function* testExperimentLearnMore() {
+  // Actual URL is irrelevant.
+  Services.prefs.setCharPref("toolkit.telemetry.infoURL",
+                             "http://mochi.test:8888/server.js");
+
+  yield gCategoryUtilities.openType("experiment");
+  let btn = gManagerWindow.document.getElementById("experiments-learn-more");
+
+  if (!gUseInContentUI) {
+    is_element_hidden(btn, "Learn more button hidden if not using in-content UI.");
+    Services.prefs.clearUserPref("toolkit.telemetry.infoURL");
+
+    return;
+  }
+
+  is_element_visible(btn, "Learn more button visible.");
+
+  let deferred = Promise.defer();
+  window.addEventListener("DOMContentLoaded", function onLoad(event) {
+    info("Telemetry privacy policy window opened.");
+    window.removeEventListener("DOMContentLoaded", onLoad, false);
+
+    let browser = gBrowser.selectedBrowser;
+    let expected = Services.prefs.getCharPref("toolkit.telemetry.infoURL");
+    Assert.equal(browser.currentURI.spec, expected, "New tab should have loaded privacy policy.");
+    browser.contentWindow.close();
+
+    Services.prefs.clearUserPref("toolkit.telemetry.infoURL");
+
+    deferred.resolve();
+  }, false);
+
+  info("Opening telemetry privacy policy.");
+  EventUtils.synthesizeMouseAtCenter(btn, {}, gManagerWindow);
+
+  yield deferred.promise;
+});
+
+add_task(function* testOpenPreferences() {
+  yield gCategoryUtilities.openType("experiment");
+  let btn = gManagerWindow.document.getElementById("experiments-change-telemetry");
+  if (!gUseInContentUI) {
+    is_element_hidden(btn, "Change telemetry button not enabled in out of window UI.");
+    info("Skipping preferences open test because not using in-content UI.");
+    return;
+  }
+
+  is_element_visible(btn, "Change telemetry button visible in in-content UI.");
+
+  let deferred = Promise.defer();
+  Services.obs.addObserver(function observer(prefWin, topic, data) {
+    Services.obs.removeObserver(observer, "advanced-pane-loaded");
+    info("Advanced preference pane opened.");
+    executeSoon(function() {
+      // We want this test to fail if the preferences pane changes.
+      let el = prefWin.document.getElementById("dataChoicesPanel");
+      is_element_visible(el);
+
+      prefWin.close();
+      info("Closed preferences pane.");
+
+      deferred.resolve();
+    });
+  }, "advanced-pane-loaded", false);
+
+  info("Loading preferences pane.");
+  // We need to focus before synthesizing the mouse event (bug 1240052) as
+  // synthesizeMouseAtCenter currently only synthesizes the mouse in the child process.
+  // This can cause some subtle differences if the child isn't focused.
+  yield SimpleTest.promiseFocus();
+  yield BrowserTestUtils.synthesizeMouseAtCenter("#experiments-change-telemetry", {},
+                                                 gBrowser.selectedBrowser);
+
+  yield deferred.promise;
+});
+
+add_task(function* testButtonPresence() {
+  yield gCategoryUtilities.openType("experiment");
+  let item = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
+  Assert.ok(item, "Got add-on element.");
+  item.parentNode.ensureElementIsVisible(item);
+
+  let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+  // Corresponds to the uninstall permission.
+  is_element_visible(el, "Remove button is visible.");
+  // Corresponds to lack of disable permission.
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "disable-btn");
+  is_element_hidden(el, "Disable button not visible.");
+  // Corresponds to lack of enable permission.
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "enable-btn");
+  is_element_hidden(el, "Enable button not visible.");
+});
+
+// Remove the add-on we've been testing with.
+add_task(function* testCleanup() {
+  yield AddonManagerTesting.uninstallAddonByID("test-experiment1@experiments.mozilla.org");
+  // Verify some conditions, just in case.
+  let addons = yield getExperimentAddons();
+  Assert.equal(addons.length, 0, "No experiment add-ons are installed.");
+});
+
+// The following tests should ideally live in browser/experiments/. However,
+// they rely on some of the helper functions from head.js, which can't easily
+// be consumed from other directories. So, they live here.
+
+add_task(function* testActivateExperiment() {
+  if (!gExperiments) {
+    info("Skipping experiments test because that feature isn't available.");
+    return;
+  }
+
+  gHttpServer = new HttpServer();
+  gHttpServer.start(-1);
+  let root = "http://localhost:" + gHttpServer.identity.primaryPort + "/";
+  gHttpServer.registerPathHandler("/manifest", (request, response) => {
+    response.setStatusLine(null, 200, "OK");
+    response.write(JSON.stringify({
+      "version": 1,
+      "experiments": [
+        {
+          id: "experiment-1",
+          xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
+          xpiHash: "IRRELEVANT",
+          startTime: Date.now() / 1000 - 3600,
+          endTime: Date.now() / 1000 + 3600,
+          maxActiveSeconds: 600,
+          appName: [Services.appinfo.name],
+          channel: [gExperiments._policy.updatechannel()],
+        },
+      ],
+    }));
+    response.processAsync();
+    response.finish();
+  });
+
+  gSavedManifestURI = Services.prefs.getCharPref("experiments.manifest.uri");
+  Services.prefs.setCharPref("experiments.manifest.uri", root + "manifest");
+
+  // We need to remove the cache file to help ensure consistent state.
+  yield OS.File.remove(gExperiments._cacheFilePath);
+
+  Services.prefs.setBoolPref("toolkit.telemetry.enabled", true);
+  Services.prefs.setBoolPref("experiments.enabled", true);
+
+  info("Initializing experiments service.");
+  yield gExperiments.init();
+  info("Experiments service finished first run.");
+
+  // Check conditions, just to be sure.
+  let experiments = yield gExperiments.getExperiments();
+  Assert.equal(experiments.length, 0, "No experiments known to the service.");
+
+  // This makes testing easier.
+  gExperiments._policy.ignoreHashes = true;
+
+  info("Manually updating experiments manifest.");
+  yield gExperiments.updateManifest();
+  info("Experiments update complete.");
+
+  let deferred = Promise.defer();
+  gHttpServer.stop(() => {
+    gHttpServer = null;
+
+    info("getting experiment by ID");
+    AddonManager.getAddonByID("test-experiment1@experiments.mozilla.org", (addon) => {
+      Assert.ok(addon, "Add-on installed via Experiments manager.");
+
+      deferred.resolve();
+    });
+  });
+
+  yield deferred.promise;
+
+  Assert.ok(gCategoryUtilities.isTypeVisible, "experiment", "Experiment tab visible.");
+  yield gCategoryUtilities.openType("experiment");
+  let el = gManagerWindow.document.getElementsByClassName("experiment-info-container")[0];
+  is_element_visible(el, "Experiment info is visible on experiment tab.");
+});
+
+add_task(function* testDeactivateExperiment() {
+  if (!gExperiments) {
+    return;
+  }
+
+  // Fake an empty manifest to purge data from previous manifest.
+  yield gExperiments._updateExperiments({
+    "version": 1,
+    "experiments": [],
+  });
+
+  yield gExperiments.disableExperiment("testing");
+
+  // We should have a record of the previously-active experiment.
+  let experiments = yield gExperiments.getExperiments();
+  Assert.equal(experiments.length, 1, "1 experiment is known.");
+  Assert.equal(experiments[0].active, false, "Experiment is not active.");
+
+  // We should have a previous experiment in the add-ons manager.
+  let deferred = Promise.defer();
+  AddonManager.getAddonsByTypes(["experiment"], (addons) => {
+    deferred.resolve(addons);
+  });
+  let addons = yield deferred.promise;
+  Assert.equal(addons.length, 1, "1 experiment add-on known.");
+  Assert.ok(addons[0].appDisabled, "It is a previous experiment.");
+  Assert.equal(addons[0].id, "experiment-1", "Add-on ID matches expected.");
+
+  // Verify the UI looks sane.
+
+  Assert.ok(gCategoryUtilities.isTypeVisible("experiment"), "Experiment tab visible.");
+  let item = get_addon_element(gManagerWindow, "experiment-1");
+  Assert.ok(item, "Got add-on element.");
+  Assert.ok(!item.active, "Element should not be active.");
+  item.parentNode.ensureElementIsVisible(item);
+
+  // User control buttons should not be present because previous experiments
+  // should have no permissions.
+  let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+  is_element_hidden(el, "Remove button is not visible.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "disable-btn");
+  is_element_hidden(el, "Disable button is not visible.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "enable-btn");
+  is_element_hidden(el, "Enable button is not visible.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "preferences-btn");
+  is_element_hidden(el, "Preferences button is not visible.");
+});
+
+add_task(function* testActivateRealExperiments() {
+  if (!gExperiments) {
+    info("Skipping experiments test because that feature isn't available.");
+    return;
+  }
+
+  yield gExperiments._updateExperiments({
+    "version": 1,
+    "experiments": [
+      {
+        id: "experiment-2",
+        xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
+        xpiHash: "IRRELEVANT",
+        startTime: Date.now() / 1000 - 3600,
+        endTime: Date.now() / 1000 + 3600,
+        maxActiveSeconds: 600,
+        appName: [Services.appinfo.name],
+        channel: [gExperiments._policy.updatechannel()],
+      },
+    ],
+  });
+  yield gExperiments._run();
+
+  // Check the active experiment.
+
+  let item = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
+  Assert.ok(item, "Got add-on element.");
+  item.parentNode.ensureElementIsVisible(item);
+
+  let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
+  is_element_visible(el, "Experiment state label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "Active");
+  }
+
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
+  is_element_visible(el, "Experiment time label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "Less than a day remaining");
+  }
+
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "error-container");
+  is_element_hidden(el, "error-container should be hidden.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "warning-container");
+  is_element_hidden(el, "warning-container should be hidden.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "pending-container");
+  is_element_hidden(el, "pending-container should be hidden.");
+  let { version } = yield get_tooltip_info(item);
+  Assert.equal(version, undefined, "version should be hidden.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "disabled-postfix");
+  is_element_hidden(el, "disabled-postfix should be hidden.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "update-postfix");
+  is_element_hidden(el, "update-postfix should be hidden.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "experiment-bullet");
+  is_element_visible(el, "experiment-bullet should be visible.");
+
+  // Check the previous experiment.
+
+  item = get_addon_element(gManagerWindow, "experiment-1");
+  Assert.ok(item, "Got add-on element.");
+  item.parentNode.ensureElementIsVisible(item);
+
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
+  is_element_visible(el, "Experiment state label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "Complete");
+  }
+
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
+  is_element_visible(el, "Experiment time label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "Less than a day ago");
+  }
+
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "error-container");
+  is_element_hidden(el, "error-container should be hidden.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "warning-container");
+  is_element_hidden(el, "warning-container should be hidden.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "pending-container");
+  is_element_hidden(el, "pending-container should be hidden.");
+  ({ version } = yield get_tooltip_info(item));
+  Assert.equal(version, undefined, "version should be hidden.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "disabled-postfix");
+  is_element_hidden(el, "disabled-postfix should be hidden.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "update-postfix");
+  is_element_hidden(el, "update-postfix should be hidden.");
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "experiment-bullet");
+  is_element_visible(el, "experiment-bullet should be visible.");
+
+  // Install an "older" experiment.
+
+  yield gExperiments.disableExperiment("experiment-2");
+
+  let now = Date.now();
+  let fakeNow = now - 5 * MS_IN_ONE_DAY;
+  defineNow(gExperiments._policy, fakeNow);
+
+  yield gExperiments._updateExperiments({
+    "version": 1,
+    "experiments": [
+      {
+        id: "experiment-3",
+        xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
+        xpiHash: "IRRELEVANT",
+        startTime: fakeNow / 1000 - SEC_IN_ONE_DAY,
+        endTime: now / 1000 + 10 * SEC_IN_ONE_DAY,
+        maxActiveSeconds: 100 * SEC_IN_ONE_DAY,
+        appName: [Services.appinfo.name],
+        channel: [gExperiments._policy.updatechannel()],
+      },
+    ],
+  });
+  yield gExperiments._run();
+
+  // Check the active experiment.
+
+  item = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
+  Assert.ok(item, "Got add-on element.");
+  item.parentNode.ensureElementIsVisible(item);
+
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
+  is_element_visible(el, "Experiment state label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "Active");
+  }
+
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
+  is_element_visible(el, "Experiment time label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "10 days remaining");
+  }
+
+  // Disable it and check it's previous experiment entry.
+
+  yield gExperiments.disableExperiment("experiment-3");
+
+  item = get_addon_element(gManagerWindow, "experiment-3");
+  Assert.ok(item, "Got add-on element.");
+  item.parentNode.ensureElementIsVisible(item);
+
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-state");
+  is_element_visible(el, "Experiment state label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "Complete");
+  }
+
+  el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "experiment-time");
+  is_element_visible(el, "Experiment time label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "5 days ago");
+  }
+});
+
+add_task(function* testDetailView() {
+  if (!gExperiments) {
+    info("Skipping experiments test because that feature isn't available.");
+    return;
+  }
+
+  defineNow(gExperiments._policy, Date.now());
+  yield gExperiments._updateExperiments({
+    "version": 1,
+    "experiments": [
+      {
+        id: "experiment-4",
+        xpiURL: TESTROOT + "addons/browser_experiment1.xpi",
+        xpiHash: "IRRELEVANT",
+        startTime: Date.now() / 1000 - 3600,
+        endTime: Date.now() / 1000 + 3600,
+        maxActiveSeconds: 600,
+        appName: [Services.appinfo.name],
+        channel: [gExperiments._policy.updatechannel()],
+      },
+    ],
+  });
+  yield gExperiments._run();
+
+  // Check active experiment.
+
+  yield openDetailsView("test-experiment1@experiments.mozilla.org");
+
+  let el = gManagerWindow.document.getElementById("detail-experiment-state");
+  is_element_visible(el, "Experiment state label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "Active");
+  }
+
+  el = gManagerWindow.document.getElementById("detail-experiment-time");
+  is_element_visible(el, "Experiment time label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "Less than a day remaining");
+  }
+
+  el = gManagerWindow.document.getElementById("detail-version");
+  is_element_hidden(el, "detail-version should be hidden.");
+  el = gManagerWindow.document.getElementById("detail-creator");
+  is_element_hidden(el, "detail-creator should be hidden.");
+  el = gManagerWindow.document.getElementById("detail-experiment-bullet");
+  is_element_visible(el, "experiment-bullet should be visible.");
+
+  // Check previous experiment.
+
+  yield gCategoryUtilities.openType("experiment");
+  yield openDetailsView("experiment-3");
+
+  el = gManagerWindow.document.getElementById("detail-experiment-state");
+  is_element_visible(el, "Experiment state label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "Complete");
+  }
+
+  el = gManagerWindow.document.getElementById("detail-experiment-time");
+  is_element_visible(el, "Experiment time label should be visible.");
+  if (gIsEnUsLocale) {
+    Assert.equal(el.value, "5 days ago");
+  }
+
+  el = gManagerWindow.document.getElementById("detail-version");
+  is_element_hidden(el, "detail-version should be hidden.");
+  el = gManagerWindow.document.getElementById("detail-creator");
+  is_element_hidden(el, "detail-creator should be hidden.");
+  el = gManagerWindow.document.getElementById("detail-experiment-bullet");
+  is_element_visible(el, "experiment-bullet should be visible.");
+});
+
+add_task(function* testRemoveAndUndo() {
+  if (!gExperiments) {
+    info("Skipping experiments test because that feature isn't available.");
+    return;
+  }
+
+  yield gCategoryUtilities.openType("experiment");
+
+  let addon = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
+  Assert.ok(addon, "Got add-on element.");
+
+  yield clickRemoveButton(addon);
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  let el = gManagerWindow.document.getAnonymousElementByAttribute(addon, "class", "pending");
+  is_element_visible(el, "Uninstall undo information should be visible.");
+
+  yield clickUndoButton(addon);
+  addon = get_addon_element(gManagerWindow, "test-experiment1@experiments.mozilla.org");
+  Assert.ok(addon, "Got add-on element.");
+});
+
+add_task(function* testCleanup() {
+  if (gExperiments) {
+    Services.prefs.clearUserPref("experiments.enabled");
+    Services.prefs.setCharPref("experiments.manifest.uri", gSavedManifestURI);
+
+    // We perform the uninit/init cycle to purge any leftover state.
+    yield OS.File.remove(gExperiments._cacheFilePath);
+    yield gExperiments.uninit();
+    yield gExperiments.init();
+
+    Services.prefs.clearUserPref("toolkit.telemetry.enabled");
+  }
+
+  // Check post-conditions.
+  let addons = yield getExperimentAddons();
+  Assert.equal(addons.length, 0, "No experiment add-ons are installed.");
+
+  yield close_manager(gManagerWindow);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_globalwarnings.js b/toolkit/mozapps/webextensions/test/browser/browser_globalwarnings.js
new file mode 100644
index 000000000..663905a90
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_globalwarnings.js
@@ -0,0 +1,63 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Bug 566194 - safe mode / security & compatibility check status are not exposed in new addon manager UI
+
+function test() {
+  waitForExplicitFinish();
+  run_next_test();
+}
+
+function end_test() {
+  finish();
+}
+
+add_test(function() {
+  info("Testing compatibility checking warning");
+
+  info("Setting checkCompatibility to false");
+  AddonManager.checkCompatibility = false;
+
+  open_manager("addons://list/extension", function(aWindow) {
+    var hbox = aWindow.document.querySelector("#list-view hbox.global-warning-checkcompatibility");
+    is_element_visible(hbox, "Check Compatibility warning hbox should be visible");
+    var button = aWindow.document.querySelector("#list-view button.global-warning-checkcompatibility");
+    is_element_visible(button, "Check Compatibility warning button should be visible");
+
+    info("Clicking 'Enable' button");
+    EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+    is(AddonManager.checkCompatibility, true, "Check Compatibility pref should be cleared");
+    is_element_hidden(hbox, "Check Compatibility warning hbox should be hidden");
+    is_element_hidden(button, "Check Compatibility warning button should be hidden");
+
+    close_manager(aWindow, function() {
+      run_next_test();
+    });
+  });
+});
+
+add_test(function() {
+  info("Testing update security checking warning");
+
+  var pref = "extensions.checkUpdateSecurity";
+  info("Setting " + pref + " pref to false")
+  Services.prefs.setBoolPref(pref, false);
+
+  open_manager(null, function(aWindow) {
+    var hbox = aWindow.document.querySelector("#list-view hbox.global-warning-updatesecurity");
+    is_element_visible(hbox, "Check Update Security warning hbox should be visible");
+    var button = aWindow.document.querySelector("#list-view button.global-warning-updatesecurity");
+    is_element_visible(button, "Check Update Security warning button should be visible");
+
+    info("Clicking 'Enable' button");
+    EventUtils.synthesizeMouse(button, 2, 2, { }, aWindow);
+    is(Services.prefs.prefHasUserValue(pref), false, "Check Update Security pref should be cleared");
+    is_element_hidden(hbox, "Check Update Security warning hbox should be hidden");
+    is_element_hidden(button, "Check Update Security warning button should be hidden");
+
+    close_manager(aWindow, function() {
+      run_next_test();
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_gmpProvider.js b/toolkit/mozapps/webextensions/test/browser/browser_gmpProvider.js
new file mode 100644
index 000000000..52079a263
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_gmpProvider.js
@@ -0,0 +1,418 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+"use strict";
+
+Cu.import("resource://gre/modules/Promise.jsm");
+Cu.import("resource://gre/modules/AppConstants.jsm");
+var {AddonTestUtils} = Cu.import("resource://testing-common/AddonManagerTesting.jsm", {});
+var GMPScope = Cu.import("resource://gre/modules/addons/GMPProvider.jsm");
+
+const TEST_DATE = new Date(2013, 0, 1, 12);
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gIsEnUsLocale;
+
+var gMockAddons = [];
+
+for (let plugin of GMPScope.GMP_PLUGINS) {
+  let mockAddon = Object.freeze({
+      id: plugin.id,
+      isValid: true,
+      isInstalled: false,
+      isEME: (plugin.id == "gmp-widevinecdm" ||
+              plugin.id.indexOf("gmp-eme-") == 0) ? true : false,
+  });
+  gMockAddons.push(mockAddon);
+}
+
+var gInstalledAddonId = "";
+var gInstallDeferred = null;
+var gPrefs = Services.prefs;
+var getKey = GMPScope.GMPPrefs.getPrefKey;
+
+function MockGMPInstallManager() {
+}
+
+MockGMPInstallManager.prototype = {
+  checkForAddons: () => Promise.resolve({
+    usedFallback: true,
+    gmpAddons: gMockAddons
+  }),
+
+  installAddon: addon => {
+    gInstalledAddonId = addon.id;
+    gInstallDeferred.resolve();
+    return Promise.resolve();
+  },
+};
+
+var gOptionsObserver = {
+  lastDisplayed: null,
+  observe: function(aSubject, aTopic, aData) {
+    if (aTopic == AddonManager.OPTIONS_NOTIFICATION_DISPLAYED) {
+      this.lastDisplayed = aData;
+    }
+  }
+};
+
+function getInstallItem() {
+  let doc = gManagerWindow.document;
+  let list = doc.getElementById("addon-list");
+
+  let node = list.firstChild;
+  while (node) {
+    if (node.getAttribute("status") == "installing") {
+      return node;
+    }
+    node = node.nextSibling;
+  }
+
+  return null;
+}
+
+function openDetailsView(aId) {
+  let view = get_current_view(gManagerWindow);
+  Assert.equal(view.id, "list-view", "Should be in the list view to use this function");
+
+  let item = get_addon_element(gManagerWindow, aId);
+  Assert.ok(item, "Should have got add-on element.");
+  is_element_visible(item, "Add-on element should be visible.");
+
+  item.scrollIntoView();
+  EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
+  EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
+
+  let deferred = Promise.defer();
+  wait_for_view_load(gManagerWindow, deferred.resolve);
+  return deferred.promise;
+}
+
+add_task(function* initializeState() {
+  gPrefs.setBoolPref(GMPScope.GMPPrefs.KEY_LOGGING_DUMP, true);
+  gPrefs.setIntPref(GMPScope.GMPPrefs.KEY_LOGGING_LEVEL, 0);
+
+  gManagerWindow = yield open_manager();
+  gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+  registerCleanupFunction(Task.async(function*() {
+    Services.obs.removeObserver(gOptionsObserver, AddonManager.OPTIONS_NOTIFICATION_DISPLAYED);
+
+    for (let addon of gMockAddons) {
+      gPrefs.clearUserPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_ENABLED, addon.id));
+      gPrefs.clearUserPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_LAST_UPDATE, addon.id));
+      gPrefs.clearUserPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_AUTOUPDATE, addon.id));
+      gPrefs.clearUserPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id));
+      gPrefs.clearUserPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_VISIBLE, addon.id));
+      gPrefs.clearUserPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_FORCE_SUPPORTED, addon.id));
+    }
+    gPrefs.clearUserPref(GMPScope.GMPPrefs.KEY_LOGGING_DUMP);
+    gPrefs.clearUserPref(GMPScope.GMPPrefs.KEY_LOGGING_LEVEL);
+    gPrefs.clearUserPref(GMPScope.GMPPrefs.KEY_UPDATE_LAST_CHECK);
+    gPrefs.clearUserPref(GMPScope.GMPPrefs.KEY_EME_ENABLED);
+    yield GMPScope.GMPProvider.shutdown();
+    GMPScope.GMPProvider.startup();
+  }));
+
+  let chrome = Cc["@mozilla.org/chrome/chrome-registry;1"].getService(Ci.nsIXULChromeRegistry);
+  gIsEnUsLocale = chrome.getSelectedLocale("global") == "en-US";
+
+  Services.obs.addObserver(gOptionsObserver, AddonManager.OPTIONS_NOTIFICATION_DISPLAYED, false);
+
+  // Start out with plugins not being installed, disabled and automatic updates
+  // disabled.
+  gPrefs.setBoolPref(GMPScope.GMPPrefs.KEY_EME_ENABLED, true);
+  for (let addon of gMockAddons) {
+    gPrefs.setBoolPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_ENABLED, addon.id), false);
+    gPrefs.setIntPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_LAST_UPDATE, addon.id), 0);
+    gPrefs.setBoolPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_AUTOUPDATE, addon.id), false);
+    gPrefs.setCharPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id), "");
+    gPrefs.setBoolPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_VISIBLE, addon.id), true);
+    gPrefs.setBoolPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_FORCE_SUPPORTED, addon.id), true);
+  }
+  yield GMPScope.GMPProvider.shutdown();
+  GMPScope.GMPProvider.startup();
+});
+
+add_task(function* testNotInstalledDisabled() {
+  Assert.ok(gCategoryUtilities.isTypeVisible("plugin"), "Plugin tab visible.");
+  yield gCategoryUtilities.openType("plugin");
+
+  for (let addon of gMockAddons) {
+    let item = get_addon_element(gManagerWindow, addon.id);
+    Assert.ok(item, "Got add-on element:" + addon.id);
+    item.parentNode.ensureElementIsVisible(item);
+    is(item.getAttribute("active"), "false");
+
+    let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "warning");
+    is_element_hidden(el, "Warning notification is hidden.");
+    el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "disabled-postfix");
+    is_element_visible(el, "disabled-postfix is visible.");
+    el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "disable-btn");
+    is_element_hidden(el, "Disable button not visible.");
+    el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "enable-btn");
+    is_element_hidden(el, "Enable button not visible.");
+
+    let menu = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "state-menulist");
+    is_element_visible(menu, "State menu should be visible.");
+
+    let neverActivate = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "never-activate-menuitem");
+    is(menu.selectedItem, neverActivate, "Plugin state should be never-activate.");
+  }
+});
+
+add_task(function* testNotInstalledDisabledDetails() {
+  for (let addon of gMockAddons) {
+    yield openDetailsView(addon.id);
+    let doc = gManagerWindow.document;
+
+    let el = doc.getElementsByClassName("disabled-postfix")[0];
+    is_element_visible(el, "disabled-postfix is visible.");
+    el = doc.getElementById("detail-findUpdates-btn");
+    is_element_visible(el, "Find updates link is visible.");
+    el = doc.getElementById("detail-warning");
+    is_element_hidden(el, "Warning notification is hidden.");
+    el = doc.getElementsByTagName("setting")[0];
+
+    yield gCategoryUtilities.openType("plugin");
+  }
+});
+
+add_task(function* testNotInstalled() {
+  for (let addon of gMockAddons) {
+    gPrefs.setBoolPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_ENABLED, addon.id), true);
+    let item = get_addon_element(gManagerWindow, addon.id);
+    Assert.ok(item, "Got add-on element:" + addon.id);
+    item.parentNode.ensureElementIsVisible(item);
+    is(item.getAttribute("active"), "true");
+
+    let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "warning");
+    is_element_visible(el, "Warning notification is visible.");
+    el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "disabled-postfix");
+    is_element_hidden(el, "disabled-postfix is hidden.");
+    el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "disable-btn");
+    is_element_hidden(el, "Disable button not visible.");
+    el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "enable-btn");
+    is_element_hidden(el, "Enable button not visible.");
+
+    let menu = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "state-menulist");
+    is_element_visible(menu, "State menu should be visible.");
+
+    let alwaysActivate = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "always-activate-menuitem");
+    is(menu.selectedItem, alwaysActivate, "Plugin state should be always-activate.");
+  }
+});
+
+add_task(function* testNotInstalledDetails() {
+  for (let addon of gMockAddons) {
+    yield openDetailsView(addon.id);
+    let doc = gManagerWindow.document;
+
+    let el = doc.getElementsByClassName("disabled-postfix")[0];
+    is_element_hidden(el, "disabled-postfix is hidden.");
+    el = doc.getElementById("detail-findUpdates-btn");
+    is_element_visible(el, "Find updates link is visible.");
+    el = doc.getElementById("detail-warning");
+    is_element_visible(el, "Warning notification is visible.");
+    el = doc.getElementsByTagName("setting")[0];
+
+    yield gCategoryUtilities.openType("plugin");
+  }
+});
+
+add_task(function* testInstalled() {
+  for (let addon of gMockAddons) {
+    gPrefs.setIntPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_LAST_UPDATE, addon.id),
+                      TEST_DATE.getTime());
+    gPrefs.setBoolPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_AUTOUPDATE, addon.id), false);
+    gPrefs.setCharPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id), "1.2.3.4");
+
+    let item = get_addon_element(gManagerWindow, addon.id);
+    Assert.ok(item, "Got add-on element.");
+    item.parentNode.ensureElementIsVisible(item);
+    is(item.getAttribute("active"), "true");
+
+    let el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "warning");
+    is_element_hidden(el, "Warning notification is hidden.");
+    el = item.ownerDocument.getAnonymousElementByAttribute(item, "class", "disabled-postfix");
+    is_element_hidden(el, "disabled-postfix is hidden.");
+    el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "disable-btn");
+    is_element_hidden(el, "Disable button not visible.");
+    el = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "enable-btn");
+    is_element_hidden(el, "Enable button not visible.");
+
+    let menu = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "state-menulist");
+    is_element_visible(menu, "State menu should be visible.");
+
+    let alwaysActivate = item.ownerDocument.getAnonymousElementByAttribute(item, "anonid", "always-activate-menuitem");
+    is(menu.selectedItem, alwaysActivate, "Plugin state should be always-activate.");
+  }
+});
+
+add_task(function* testInstalledDetails() {
+  for (let addon of gMockAddons) {
+    yield openDetailsView(addon.id);
+    let doc = gManagerWindow.document;
+
+    let el = doc.getElementsByClassName("disabled-postfix")[0];
+    is_element_hidden(el, "disabled-postfix is hidden.");
+    el = doc.getElementById("detail-findUpdates-btn");
+    is_element_visible(el, "Find updates link is visible.");
+    el = doc.getElementById("detail-warning");
+    is_element_hidden(el, "Warning notification is hidden.");
+    el = doc.getElementsByTagName("setting")[0];
+
+    let contextMenu = doc.getElementById("addonitem-popup");
+    let deferred = Promise.defer();
+    let listener = () => {
+      contextMenu.removeEventListener("popupshown", listener, false);
+      deferred.resolve();
+    };
+    contextMenu.addEventListener("popupshown", listener, false);
+    el = doc.getElementsByClassName("detail-view-container")[0];
+    EventUtils.synthesizeMouse(el, 4, 4, { }, gManagerWindow);
+    EventUtils.synthesizeMouse(el, 4, 4, { type: "contextmenu", button: 2 }, gManagerWindow);
+    yield deferred.promise;
+    let menuSep = doc.getElementById("addonitem-menuseparator");
+    is_element_hidden(menuSep, "Menu separator is hidden.");
+    contextMenu.hidePopup();
+
+    yield gCategoryUtilities.openType("plugin");
+  }
+});
+
+add_task(function* testInstalledGlobalEmeDisabled() {
+  gPrefs.setBoolPref(GMPScope.GMPPrefs.KEY_EME_ENABLED, false);
+  for (let addon of gMockAddons) {
+    let item = get_addon_element(gManagerWindow, addon.id);
+    if (addon.isEME) {
+      Assert.ok(!item, "Couldn't get add-on element.");
+    } else {
+      Assert.ok(item, "Got add-on element.");
+    }
+  }
+  gPrefs.setBoolPref(GMPScope.GMPPrefs.KEY_EME_ENABLED, true);
+});
+
+add_task(function* testPreferencesButton() {
+
+  let prefValues = [
+    { enabled: false, version: "" },
+    { enabled: false, version: "1.2.3.4" },
+    { enabled: true, version: "" },
+    { enabled: true, version: "1.2.3.4" },
+  ];
+
+  for (let preferences of prefValues) {
+    dump("Testing preferences button with pref settings: " +
+         JSON.stringify(preferences) + "\n");
+    for (let addon of gMockAddons) {
+      yield close_manager(gManagerWindow);
+      gManagerWindow = yield open_manager();
+      gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+      gPrefs.setCharPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id),
+                         preferences.version);
+      gPrefs.setBoolPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_ENABLED, addon.id),
+                         preferences.enabled);
+
+      yield gCategoryUtilities.openType("plugin");
+      let doc = gManagerWindow.document;
+      let item = get_addon_element(gManagerWindow, addon.id);
+
+      let button = doc.getAnonymousElementByAttribute(item, "anonid", "preferences-btn");
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+      let deferred = Promise.defer();
+      wait_for_view_load(gManagerWindow, deferred.resolve);
+      yield deferred.promise;
+
+      is(gOptionsObserver.lastDisplayed, addon.id);
+    }
+  }
+});
+
+add_task(function* testUpdateButton() {
+  gPrefs.clearUserPref(GMPScope.GMPPrefs.KEY_UPDATE_LAST_CHECK);
+
+  let originalInstallManager = GMPScope.GMPInstallManager;
+  Object.defineProperty(GMPScope, "GMPInstallManager", {
+    value: MockGMPInstallManager,
+    writable: true,
+    enumerable: true,
+    configurable: true
+  });
+
+  for (let addon of gMockAddons) {
+    yield gCategoryUtilities.openType("plugin");
+    let doc = gManagerWindow.document;
+    let item = get_addon_element(gManagerWindow, addon.id);
+
+    gInstalledAddonId = "";
+    gInstallDeferred = Promise.defer();
+
+    let button = doc.getAnonymousElementByAttribute(item, "anonid", "preferences-btn");
+    EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+    let deferred = Promise.defer();
+    wait_for_view_load(gManagerWindow, deferred.resolve);
+    yield deferred.promise;
+
+    button = doc.getElementById("detail-findUpdates-btn");
+    Assert.ok(button != null, "Got detail-findUpdates-btn");
+    EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+    yield gInstallDeferred.promise;
+
+    Assert.equal(gInstalledAddonId, addon.id);
+  }
+  Object.defineProperty(GMPScope, "GMPInstallManager", {
+    value: originalInstallManager,
+    writable: true,
+    enumerable: true,
+    configurable: true
+  });
+});
+
+add_task(function* testEmeSupport() {
+  for (let addon of gMockAddons) {
+    gPrefs.clearUserPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_FORCE_SUPPORTED, addon.id));
+  }
+  yield GMPScope.GMPProvider.shutdown();
+  GMPScope.GMPProvider.startup();
+
+  for (let addon of gMockAddons) {
+    yield gCategoryUtilities.openType("plugin");
+    let doc = gManagerWindow.document;
+    let item = get_addon_element(gManagerWindow, addon.id);
+    if (addon.id == GMPScope.EME_ADOBE_ID) {
+      if (AppConstants.isPlatformAndVersionAtLeast("win", "6")) {
+        Assert.ok(item, "Adobe EME supported, found add-on element.");
+      } else {
+        Assert.ok(!item,
+                  "Adobe EME not supported, couldn't find add-on element.");
+      }
+    } else if (addon.id == GMPScope.WIDEVINE_ID) {
+      if (AppConstants.isPlatformAndVersionAtLeast("win", "6") ||
+          AppConstants.platform == "macosx" ||
+          AppConstants.platform == "linux") {
+        Assert.ok(item, "Widevine supported, found add-on element.");
+      } else {
+        Assert.ok(!item,
+                  "Widevine not supported, couldn't find add-on element.");
+      }
+    } else {
+      Assert.ok(item, "Found add-on element.");
+    }
+  }
+
+  for (let addon of gMockAddons) {
+    gPrefs.setBoolPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_VISIBLE, addon.id), true);
+    gPrefs.setBoolPref(getKey(GMPScope.GMPPrefs.KEY_PLUGIN_FORCE_SUPPORTED, addon.id), true);
+  }
+  yield GMPScope.GMPProvider.shutdown();
+  GMPScope.GMPProvider.startup();
+
+});
+
+add_task(function* test_cleanup() {
+  yield close_manager(gManagerWindow);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_hotfix.js b/toolkit/mozapps/webextensions/test/browser/browser_hotfix.js
new file mode 100644
index 000000000..b7bb3f580
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_hotfix.js
@@ -0,0 +1,171 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const PREF_EM_HOTFIX_ID                = "extensions.hotfix.id";
+const PREF_EM_HOTFIX_LASTVERSION       = "extensions.hotfix.lastVersion";
+const PREF_EM_HOTFIX_URL               = "extensions.hotfix.url";
+const PREF_EM_HOTFIX_CERTS             = "extensions.hotfix.certs.";
+const PREF_EM_CERT_CHECKATTRIBUTES     = "extensions.hotfix.cert.checkAttributes";
+
+const PREF_INSTALL_REQUIREBUILTINCERTS = "extensions.install.requireBuiltInCerts";
+const PREF_UPDATE_REQUIREBUILTINCERTS  = "extensions.update.requireBuiltInCerts";
+
+const PREF_APP_UPDATE_ENABLED          = "app.update.enabled";
+const PREF_APP_UPDATE_URL              = "app.update.url";
+
+const HOTFIX_ID = "hotfix@tests.mozilla.org";
+
+/*
+ * Register an addon install listener and return a promise that:
+ *  resolves with the AddonInstall object if the install succeeds
+ *  rejects with the AddonInstall if the install fails
+ */
+function promiseInstallListener() {
+  return new Promise((resolve, reject) => {
+    let listener = {
+      onInstallEnded: ai => {
+        AddonManager.removeInstallListener(listener);
+        resolve(ai);
+      },
+      onDownloadCancelled: ai => {
+        AddonManager.removeInstallListener(listener);
+        reject(ai);
+      }
+    };
+    AddonManager.addInstallListener(listener);
+  });
+}
+
+function promiseSuccessfulInstall() {
+  return promiseInstallListener().then(
+    aInstall => {
+      ok(true, "Should have seen the install complete");
+      is(aInstall.addon.id, HOTFIX_ID, "Should have installed the right add-on");
+      aInstall.addon.uninstall();
+      Services.prefs.clearUserPref(PREF_EM_HOTFIX_LASTVERSION);
+    },
+    aInstall => {
+      ok(false, "Should not have seen the download cancelled");
+      is(aInstall.addon.id, HOTFIX_ID, "Should have seen the right add-on");
+    });
+}
+
+function promiseFailedInstall() {
+  return promiseInstallListener().then(
+    aInstall => {
+      ok(false, "Should not have seen the install complete");
+      is(aInstall.addon.id, HOTFIX_ID, "Should have installed the right add-on");
+      aInstall.addon.uninstall();
+      Services.prefs.clearUserPref(PREF_EM_HOTFIX_LASTVERSION);
+    },
+    aInstall => {
+      ok(true, "Should have seen the download cancelled");
+      is(aInstall.addon.id, HOTFIX_ID, "Should have seen the right add-on");
+    });
+}
+
+add_task(function setup() {
+  var oldAusUrl = Services.prefs.getDefaultBranch(null).getCharPref(PREF_APP_UPDATE_URL);
+  Services.prefs.getDefaultBranch(null).setCharPref(PREF_APP_UPDATE_URL, TESTROOT + "ausdummy.xml");
+  Services.prefs.setBoolPref(PREF_APP_UPDATE_ENABLED, true);
+  Services.prefs.setBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, false);
+  Services.prefs.setBoolPref(PREF_UPDATE_REQUIREBUILTINCERTS, false);
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_ID, HOTFIX_ID);
+  var oldURL = Services.prefs.getCharPref(PREF_EM_HOTFIX_URL);
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_URL, TESTROOT + "signed_hotfix.rdf");
+
+  registerCleanupFunction(function() {
+    Services.prefs.setBoolPref(PREF_APP_UPDATE_ENABLED, false);
+    Services.prefs.getDefaultBranch(null).setCharPref(PREF_APP_UPDATE_URL, oldAusUrl);
+    Services.prefs.clearUserPref(PREF_EM_HOTFIX_ID);
+    Services.prefs.setCharPref(PREF_EM_HOTFIX_URL, oldURL);
+    Services.prefs.clearUserPref(PREF_INSTALL_REQUIREBUILTINCERTS);
+    Services.prefs.clearUserPref(PREF_UPDATE_REQUIREBUILTINCERTS);
+
+    Services.prefs.clearUserPref(PREF_EM_CERT_CHECKATTRIBUTES);
+    var prefs = Services.prefs.getChildList(PREF_EM_HOTFIX_CERTS);
+    prefs.forEach(Services.prefs.clearUserPref);
+  });
+});
+
+add_task(function* check_no_cert_checks() {
+  Services.prefs.setBoolPref(PREF_EM_CERT_CHECKATTRIBUTES, false);
+  yield Promise.all([
+    promiseSuccessfulInstall(),
+    AddonManagerPrivate.backgroundUpdateCheck()
+  ]);
+});
+
+add_task(function* check_wrong_cert_fingerprint() {
+  Services.prefs.setBoolPref(PREF_EM_CERT_CHECKATTRIBUTES, true);
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint", "foo");
+
+  yield Promise.all([
+    promiseFailedInstall(),
+    AddonManagerPrivate.backgroundUpdateCheck()
+  ]);
+  Services.prefs.clearUserPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint");
+});
+
+add_task(function* check_right_cert_fingerprint() {
+  Services.prefs.setBoolPref(PREF_EM_CERT_CHECKATTRIBUTES, true);
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint", "3E:B9:4E:07:12:FE:3C:01:41:46:13:46:FC:84:52:1A:8C:BE:1D:A2");
+
+  yield Promise.all([
+    promiseSuccessfulInstall(),
+    AddonManagerPrivate.backgroundUpdateCheck()
+  ]);
+
+  Services.prefs.clearUserPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint");
+});
+
+add_task(function* check_multi_cert_fingerprint_1() {
+  Services.prefs.setBoolPref(PREF_EM_CERT_CHECKATTRIBUTES, true);
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint", "3E:B9:4E:07:12:FE:3C:01:41:46:13:46:FC:84:52:1A:8C:BE:1D:A2");
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_CERTS + "2.sha1Fingerprint", "foo");
+
+  yield Promise.all([
+    promiseSuccessfulInstall(),
+    AddonManagerPrivate.backgroundUpdateCheck()
+  ]);
+
+  Services.prefs.clearUserPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint");
+  Services.prefs.clearUserPref(PREF_EM_HOTFIX_CERTS + "2.sha1Fingerprint");
+});
+
+add_task(function* check_multi_cert_fingerprint_2() {
+  Services.prefs.setBoolPref(PREF_EM_CERT_CHECKATTRIBUTES, true);
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint", "foo");
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_CERTS + "2.sha1Fingerprint", "3E:B9:4E:07:12:FE:3C:01:41:46:13:46:FC:84:52:1A:8C:BE:1D:A2");
+
+  yield Promise.all([
+    promiseSuccessfulInstall(),
+    AddonManagerPrivate.backgroundUpdateCheck()
+  ]);
+
+  Services.prefs.clearUserPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint");
+  Services.prefs.clearUserPref(PREF_EM_HOTFIX_CERTS + "2.sha1Fingerprint");
+});
+
+add_task(function* check_no_cert_no_checks() {
+  Services.prefs.setBoolPref(PREF_EM_CERT_CHECKATTRIBUTES, false);
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_URL, TESTROOT + "unsigned_hotfix.rdf");
+
+  yield Promise.all([
+    promiseSuccessfulInstall(),
+    AddonManagerPrivate.backgroundUpdateCheck()
+  ]);
+});
+
+add_task(function* check_no_cert_cert_fingerprint_check() {
+  Services.prefs.setBoolPref(PREF_EM_CERT_CHECKATTRIBUTES, true);
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint", "3E:B9:4E:07:12:FE:3C:01:41:46:13:46:FC:84:52:1A:8C:BE:1D:A2");
+
+  yield Promise.all([
+    promiseFailedInstall(),
+    AddonManagerPrivate.backgroundUpdateCheck()
+  ]);
+
+  Services.prefs.clearUserPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint");
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings.js b/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings.js
new file mode 100644
index 000000000..e2814ddf4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings.js
@@ -0,0 +1,680 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests various aspects of the details view
+Components.utils.import("resource://gre/modules/Preferences.jsm");
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gProvider;
+
+const SETTINGS_ROWS = 9;
+
+var MockFilePicker = SpecialPowers.MockFilePicker;
+MockFilePicker.init(window);
+
+var observer = {
+  lastDisplayed: null,
+  callback: null,
+  checkDisplayed: function(aExpected) {
+    is(this.lastDisplayed, aExpected, "'addon-options-displayed' notification should have fired");
+    this.lastDisplayed = null;
+  },
+  checkNotDisplayed: function() {
+    is(this.lastDisplayed, null, "'addon-options-displayed' notification should not have fired");
+  },
+  lastHidden: null,
+  checkHidden: function(aExpected) {
+    is(this.lastHidden, aExpected, "'addon-options-hidden' notification should have fired");
+    this.lastHidden = null;
+  },
+  checkNotHidden: function() {
+    is(this.lastHidden, null, "'addon-options-hidden' notification should not have fired");
+  },
+  observe: function(aSubject, aTopic, aData) {
+    if (aTopic == AddonManager.OPTIONS_NOTIFICATION_DISPLAYED) {
+      this.lastDisplayed = aData;
+      // Test if the binding has applied before the observers are notified. We test the second setting here,
+      // because the code operates on the first setting and we want to check it applies to all.
+      var setting = aSubject.querySelector("rows > setting[first-row] ~ setting");
+      var input = gManagerWindow.document.getAnonymousElementByAttribute(setting, "class", "preferences-title");
+      isnot(input, null, "XBL binding should be applied");
+
+      // Add some extra height to the scrolling pane to ensure that it needs to scroll when appropriate.
+      gManagerWindow.document.getElementById("detail-controls").style.marginBottom = "1000px";
+
+      if (this.callback) {
+        var tempCallback = this.callback;
+        this.callback = null;
+        tempCallback();
+      }
+    } else if (aTopic == AddonManager.OPTIONS_NOTIFICATION_HIDDEN) {
+      this.lastHidden = aData;
+    }
+  }
+};
+
+function installAddon(aCallback) {
+  AddonManager.getInstallForURL(TESTROOT + "addons/browser_inlinesettings1.xpi",
+                                function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function() {
+        executeSoon(aCallback);
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+function checkScrolling(aShouldHaveScrolled) {
+  var detailView = gManagerWindow.document.getElementById("detail-view");
+  var boxObject = detailView.boxObject;
+  ok(detailView.scrollHeight > boxObject.height, "Page should require scrolling");
+  if (aShouldHaveScrolled)
+    isnot(detailView.scrollTop, 0, "Page should have scrolled");
+  else
+    is(detailView.scrollTop, 0, "Page should not have scrolled");
+}
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "inlinesettings2@tests.mozilla.org",
+    name: "Inline Settings (Regular)",
+    version: "1",
+    optionsURL: CHROMEROOT + "options.xul",
+    optionsType: AddonManager.OPTIONS_TYPE_INLINE,
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_DISABLE,
+  }, {
+    id: "inlinesettings3@tests.mozilla.org",
+    name: "Inline Settings (More Options)",
+    description: "Tests for option types introduced after Mozilla 7.0",
+    version: "1",
+    optionsURL: CHROMEROOT + "more_options.xul",
+    optionsType: AddonManager.OPTIONS_TYPE_INLINE
+  }, {
+    id: "noninlinesettings@tests.mozilla.org",
+    name: "Non-Inline Settings",
+    version: "1",
+    optionsURL: CHROMEROOT + "addon_prefs.xul"
+  }]);
+
+  installAddon(function () {
+    open_manager("addons://list/extension", function(aWindow) {
+      gManagerWindow = aWindow;
+      gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+      Services.obs.addObserver(observer,
+                               AddonManager.OPTIONS_NOTIFICATION_DISPLAYED,
+                               false);
+      Services.obs.addObserver(observer,
+                               AddonManager.OPTIONS_NOTIFICATION_HIDDEN,
+                               false);
+
+      run_next_test();
+    });
+  });
+}
+
+function end_test() {
+  Services.obs.removeObserver(observer,
+                              AddonManager.OPTIONS_NOTIFICATION_DISPLAYED);
+
+  Services.prefs.clearUserPref("extensions.inlinesettings1.bool");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.boolint");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.integer");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.string");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.color");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.file");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.directory");
+  Services.prefs.clearUserPref("extensions.inlinesettings3.radioBool");
+  Services.prefs.clearUserPref("extensions.inlinesettings3.radioInt");
+  Services.prefs.clearUserPref("extensions.inlinesettings3.radioString");
+  Services.prefs.clearUserPref("extensions.inlinesettings3.menulist");
+
+  MockFilePicker.cleanup();
+
+  close_manager(gManagerWindow, function() {
+    observer.checkHidden("inlinesettings3@tests.mozilla.org");
+    Services.obs.removeObserver(observer,
+                                AddonManager.OPTIONS_NOTIFICATION_HIDDEN);
+
+    AddonManager.getAddonByID("inlinesettings1@tests.mozilla.org", function(aAddon) {
+      aAddon.uninstall();
+      finish();
+    });
+  });
+}
+
+// Addon with options.xul
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+  is(addon.mAddon.optionsType, AddonManager.OPTIONS_TYPE_INLINE, "Options should be inline type");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  is_element_visible(button, "Preferences button should be visible");
+
+  run_next_test();
+});
+
+// Addon with inline preferences as optionsURL
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "inlinesettings2@tests.mozilla.org");
+  is(addon.mAddon.optionsType, AddonManager.OPTIONS_TYPE_INLINE, "Options should be inline type");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  is_element_visible(button, "Preferences button should be visible");
+
+  run_next_test();
+});
+
+// Addon with non-inline preferences as optionsURL
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "noninlinesettings@tests.mozilla.org");
+  is(addon.mAddon.optionsType, AddonManager.OPTIONS_TYPE_DIALOG, "Options should be dialog type");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  is_element_visible(button, "Preferences button should be visible");
+
+  run_next_test();
+});
+
+// Addon with options.xul, also a test for the setting.xml bindings
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings1@tests.mozilla.org");
+    is(gManagerWindow.gViewController.currentViewId,
+       "addons://detail/inlinesettings1%40tests.mozilla.org/preferences",
+       "Current view should scroll to preferences");
+    checkScrolling(true);
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, SETTINGS_ROWS, "Grid should have settings children");
+
+    ok(settings[0].hasAttribute("first-row"), "First visible row should have first-row attribute");
+    Services.prefs.setBoolPref("extensions.inlinesettings1.bool", false);
+    var input = gManagerWindow.document.getAnonymousElementByAttribute(settings[0], "anonid", "input");
+    isnot(input.checked, true, "Checkbox should have initial value");
+    is(input.label, "Check box label", "Checkbox should be labelled");
+    EventUtils.synthesizeMouseAtCenter(input, { clickCount: 1 }, gManagerWindow);
+    is(input.checked, true, "Checkbox should have updated value");
+    is(Services.prefs.getBoolPref("extensions.inlinesettings1.bool"), true, "Bool pref should have been updated");
+    EventUtils.synthesizeMouseAtCenter(input, { clickCount: 1 }, gManagerWindow);
+    isnot(input.checked, true, "Checkbox should have updated value");
+    is(Services.prefs.getBoolPref("extensions.inlinesettings1.bool"), false, "Bool pref should have been updated");
+
+    ok(!settings[1].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setIntPref("extensions.inlinesettings1.boolint", 0);
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[1], "anonid", "input");
+    isnot(input.checked, true, "Checkbox should have initial value");
+    EventUtils.synthesizeMouseAtCenter(input, { clickCount: 1 }, gManagerWindow);
+    is(input.checked, true, "Checkbox should have updated value");
+    is(Services.prefs.getIntPref("extensions.inlinesettings1.boolint"), 1, "BoolInt pref should have been updated");
+    EventUtils.synthesizeMouseAtCenter(input, { clickCount: 1 }, gManagerWindow);
+    isnot(input.checked, true, "Checkbox should have updated value");
+    is(Services.prefs.getIntPref("extensions.inlinesettings1.boolint"), 2, "BoolInt pref should have been updated");
+
+    ok(!settings[2].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setIntPref("extensions.inlinesettings1.integer", 0);
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[2], "anonid", "input");
+    is(input.value, "0", "Number box should have initial value");
+    input.select();
+    EventUtils.synthesizeKey("1", {}, gManagerWindow);
+    EventUtils.synthesizeKey("3", {}, gManagerWindow);
+    is(input.value, "13", "Number box should have updated value");
+    is(Services.prefs.getIntPref("extensions.inlinesettings1.integer"), 13, "Integer pref should have been updated");
+    EventUtils.synthesizeKey("VK_DOWN", {}, gManagerWindow);
+    is(input.value, "12", "Number box should have updated value");
+    is(Services.prefs.getIntPref("extensions.inlinesettings1.integer"), 12, "Integer pref should have been updated");
+
+    ok(!settings[3].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setCharPref("extensions.inlinesettings1.string", "foo");
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[3], "anonid", "input");
+    is(input.value, "foo", "Text box should have initial value");
+    input.select();
+    EventUtils.synthesizeKey("b", {}, gManagerWindow);
+    EventUtils.synthesizeKey("a", {}, gManagerWindow);
+    EventUtils.synthesizeKey("r", {}, gManagerWindow);
+    is(input.value, "bar", "Text box should have updated value");
+    input.value += "\u03DE"; // Cheat to add this non-ASCII character without typing it.
+    EventUtils.synthesizeKey("/", {}, gManagerWindow);
+    is(input.value, "bar\u03DE/", "Text box should have updated value");
+    is(gManagerWindow.document.getBindingParent(gManagerWindow.document.activeElement), input, "Search box should not have focus");
+    is(Preferences.get("extensions.inlinesettings1.string", "wrong"), "bar\u03DE/", "String pref should have been updated");
+
+    ok(!settings[4].hasAttribute("first-row"), "Not the first row");
+    input = settings[4].firstElementChild;
+    is(input.value, "1", "Menulist should have initial value");
+    input.focus();
+    EventUtils.synthesizeKey("b", {}, gManagerWindow);
+    is(input.value, "2", "Menulist should have updated value");
+    is(gManagerWindow._testValue, "2", "Menulist oncommand handler should've updated the test value");
+    delete gManagerWindow._testValue;
+
+    ok(!settings[5].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setCharPref("extensions.inlinesettings1.color", "#FF0000");
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[5], "anonid", "input");
+    is(input.color, "#FF0000", "Color picker should have initial value");
+    input.focus();
+    EventUtils.synthesizeKey("VK_RIGHT", {}, gManagerWindow);
+    EventUtils.synthesizeKey("VK_RIGHT", {}, gManagerWindow);
+    EventUtils.synthesizeKey("VK_RETURN", {}, gManagerWindow);
+    input.hidePopup();
+    is(input.color, "#FF9900", "Color picker should have updated value");
+    is(Services.prefs.getCharPref("extensions.inlinesettings1.color"), "#FF9900", "Color pref should have been updated");
+
+    try {
+      ok(!settings[6].hasAttribute("first-row"), "Not the first row");
+      var button = gManagerWindow.document.getAnonymousElementByAttribute(settings[6], "anonid", "button");
+      input = gManagerWindow.document.getAnonymousElementByAttribute(settings[6], "anonid", "input");
+      is(input.value, "", "Label value should be empty");
+      is(input.tooltipText, "", "Label tooltip should be empty");
+
+      var testFile = Services.dirsvc.get("ProfD", Ci.nsIFile);
+      testFile.append("\u2622");
+      var curProcD = Services.dirsvc.get("CurProcD", Ci.nsIFile);
+
+      MockFilePicker.returnFiles = [testFile];
+      MockFilePicker.returnValue = Ci.nsIFilePicker.returnOK;
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+      is(MockFilePicker.mode, Ci.nsIFilePicker.modeOpen, "File picker mode should be open file");
+      is(input.value, testFile.path, "Label value should match file chosen");
+      is(input.tooltipText, testFile.path, "Label tooltip should match file chosen");
+      is(Preferences.get("extensions.inlinesettings1.file", "wrong"), testFile.path, "File pref should match file chosen");
+
+      MockFilePicker.returnFiles = [curProcD];
+      MockFilePicker.returnValue = Ci.nsIFilePicker.returnCancel;
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+      is(MockFilePicker.mode, Ci.nsIFilePicker.modeOpen, "File picker mode should be open file");
+      is(input.value, testFile.path, "Label value should not have changed");
+      is(input.tooltipText, testFile.path, "Label tooltip should not have changed");
+      is(Preferences.get("extensions.inlinesettings1.file", "wrong"), testFile.path, "File pref should not have changed");
+
+      ok(!settings[7].hasAttribute("first-row"), "Not the first row");
+      button = gManagerWindow.document.getAnonymousElementByAttribute(settings[7], "anonid", "button");
+      input = gManagerWindow.document.getAnonymousElementByAttribute(settings[7], "anonid", "input");
+      is(input.value, "", "Label value should be empty");
+      is(input.tooltipText, "", "Label tooltip should be empty");
+
+      MockFilePicker.returnFiles = [testFile];
+      MockFilePicker.returnValue = Ci.nsIFilePicker.returnOK;
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+      is(MockFilePicker.mode, Ci.nsIFilePicker.modeGetFolder, "File picker mode should be directory");
+      is(input.value, testFile.path, "Label value should match file chosen");
+      is(input.tooltipText, testFile.path, "Label tooltip should match file chosen");
+      is(Preferences.get("extensions.inlinesettings1.directory", "wrong"), testFile.path, "Directory pref should match file chosen");
+
+      MockFilePicker.returnFiles = [curProcD];
+      MockFilePicker.returnValue = Ci.nsIFilePicker.returnCancel;
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+      is(MockFilePicker.mode, Ci.nsIFilePicker.modeGetFolder, "File picker mode should be directory");
+      is(input.value, testFile.path, "Label value should not have changed");
+      is(input.tooltipText, testFile.path, "Label tooltip should not have changed");
+      is(Preferences.get("extensions.inlinesettings1.directory", "wrong"), testFile.path, "Directory pref should not have changed");
+
+      var unsizedInput = gManagerWindow.document.getAnonymousElementByAttribute(settings[2], "anonid", "input");
+      var sizedInput = gManagerWindow.document.getAnonymousElementByAttribute(settings[8], "anonid", "input");
+      is(unsizedInput.clientWidth > sizedInput.clientWidth, true, "Input with size attribute should be smaller than input without");
+    } finally {
+      button = gManagerWindow.document.getElementById("detail-prefs-btn");
+      is_element_hidden(button, "Preferences button should not be visible");
+
+      gCategoryUtilities.openType("extension", run_next_test);
+    }
+  });
+});
+
+// Tests for the setting.xml bindings introduced after Mozilla 7
+add_test(function() {
+  observer.checkHidden("inlinesettings1@tests.mozilla.org");
+
+  var addon = get_addon_element(gManagerWindow, "inlinesettings3@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings3@tests.mozilla.org");
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, 4, "Grid should have settings children");
+
+    ok(settings[0].hasAttribute("first-row"), "First visible row should have first-row attribute");
+    Services.prefs.setBoolPref("extensions.inlinesettings3.radioBool", false);
+    var radios = settings[0].getElementsByTagName("radio");
+    isnot(radios[0].selected, true, "Correct radio button should be selected");
+    is(radios[1].selected, true, "Correct radio button should be selected");
+    EventUtils.synthesizeMouseAtCenter(radios[0], { clickCount: 1 }, gManagerWindow);
+    is(Services.prefs.getBoolPref("extensions.inlinesettings3.radioBool"), true, "Radio pref should have been updated");
+    EventUtils.synthesizeMouseAtCenter(radios[1], { clickCount: 1 }, gManagerWindow);
+    is(Services.prefs.getBoolPref("extensions.inlinesettings3.radioBool"), false, "Radio pref should have been updated");
+
+    ok(!settings[1].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setIntPref("extensions.inlinesettings3.radioInt", 5);
+    radios = settings[1].getElementsByTagName("radio");
+    isnot(radios[0].selected, true, "Correct radio button should be selected");
+    is(radios[1].selected, true, "Correct radio button should be selected");
+    isnot(radios[2].selected, true, "Correct radio button should be selected");
+    EventUtils.synthesizeMouseAtCenter(radios[0], { clickCount: 1 }, gManagerWindow);
+    is(Services.prefs.getIntPref("extensions.inlinesettings3.radioInt"), 4, "Radio pref should have been updated");
+    EventUtils.synthesizeMouseAtCenter(radios[2], { clickCount: 1 }, gManagerWindow);
+    is(Services.prefs.getIntPref("extensions.inlinesettings3.radioInt"), 6, "Radio pref should have been updated");
+
+    ok(!settings[2].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setCharPref("extensions.inlinesettings3.radioString", "juliet");
+    radios = settings[2].getElementsByTagName("radio");
+    isnot(radios[0].selected, true, "Correct radio button should be selected");
+    is(radios[1].selected, true, "Correct radio button should be selected");
+    isnot(radios[2].selected, true, "Correct radio button should be selected");
+    EventUtils.synthesizeMouseAtCenter(radios[0], { clickCount: 1 }, gManagerWindow);
+    is(Preferences.get("extensions.inlinesettings3.radioString", "wrong"), "india", "Radio pref should have been updated");
+    EventUtils.synthesizeMouseAtCenter(radios[2], { clickCount: 1 }, gManagerWindow);
+    is(Preferences.get("extensions.inlinesettings3.radioString", "wrong"), "kilo \u338F", "Radio pref should have been updated");
+
+    ok(!settings[3].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setIntPref("extensions.inlinesettings3.menulist", 8);
+    var input = settings[3].firstElementChild;
+    is(input.value, "8", "Menulist should have initial value");
+    input.focus();
+    EventUtils.synthesizeKey("n", {}, gManagerWindow);
+    is(input.value, "9", "Menulist should have updated value");
+    is(Services.prefs.getIntPref("extensions.inlinesettings3.menulist"), 9, "Menulist pref should have been updated");
+
+    button = gManagerWindow.document.getElementById("detail-prefs-btn");
+    is_element_hidden(button, "Preferences button should not be visible");
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
+
+// Addon with inline preferences as optionsURL
+add_test(function() {
+  observer.checkHidden("inlinesettings3@tests.mozilla.org");
+
+  var addon = get_addon_element(gManagerWindow, "inlinesettings2@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings2@tests.mozilla.org");
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, 5, "Grid should have settings children");
+
+    var node = settings[0];
+    node = settings[0];
+    is_element_hidden(node, "Unsupported settings should not be visible");
+    ok(!node.hasAttribute("first-row"), "Hidden row is not the first row");
+
+    node = settings[1];
+    is(node.nodeName, "setting", "Should be a setting node");
+    ok(node.hasAttribute("first-row"), "First visible row should have first-row attribute");
+    var description = gManagerWindow.document.getAnonymousElementByAttribute(node, "class", "preferences-description");
+    is(description.textContent, "Description Attribute", "Description node should contain description");
+
+    node = settings[2];
+    is(node.nodeName, "setting", "Should be a setting node");
+    ok(!node.hasAttribute("first-row"), "Not the first row");
+    description = gManagerWindow.document.getAnonymousElementByAttribute(node, "class", "preferences-description");
+    is(description.textContent, "Description Text Node", "Description node should contain description");
+
+    node = settings[3];
+    is(node.nodeName, "setting", "Should be a setting node");
+    ok(!node.hasAttribute("first-row"), "Not the first row");
+    description = gManagerWindow.document.getAnonymousElementByAttribute(node, "class", "preferences-description");
+    is(description.textContent, "This is a test, all this text should be visible", "Description node should contain description");
+    var button = node.firstElementChild;
+    isnot(button, null, "There should be a button");
+
+    node = settings[4];
+    is_element_hidden(node, "Unsupported settings should not be visible");
+    ok(!node.hasAttribute("first-row"), "Hidden row is not the first row");
+
+    button = gManagerWindow.document.getElementById("detail-prefs-btn");
+    is_element_hidden(button, "Preferences button should not be visible");
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
+
+// Addon with non-inline preferences as optionsURL
+add_test(function() {
+  observer.checkHidden("inlinesettings2@tests.mozilla.org");
+
+  var addon = get_addon_element(gManagerWindow, "noninlinesettings@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkNotDisplayed();
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, 0, "Grid should not have settings children");
+
+    var button = gManagerWindow.document.getElementById("detail-prefs-btn");
+    is_element_visible(button, "Preferences button should be visible");
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
+
+// Addon with options.xul, disabling and enabling should hide and show settings UI
+add_test(function() {
+  observer.checkNotHidden();
+
+  var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings1@tests.mozilla.org");
+    is(gManagerWindow.gViewController.currentViewId,
+       "addons://detail/inlinesettings1%40tests.mozilla.org",
+       "Current view should not scroll to preferences");
+    checkScrolling(false);
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, SETTINGS_ROWS, "Grid should have settings children");
+
+    // disable
+    var button = gManagerWindow.document.getElementById("detail-disable-btn");
+    button.scrollIntoView();
+    EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+    observer.checkHidden("inlinesettings1@tests.mozilla.org");
+
+    settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, 0, "Grid should not have settings children");
+
+    gCategoryUtilities.openType("extension", function() {
+      var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+      addon.parentNode.ensureElementIsVisible(addon);
+
+      var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+      is_element_hidden(button, "Preferences button should not be visible");
+
+      button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+      wait_for_view_load(gManagerWindow, function() {
+        var grid = gManagerWindow.document.getElementById("detail-grid");
+        var settings = grid.querySelectorAll("rows > setting");
+        is(settings.length, 0, "Grid should not have settings children");
+
+        // enable
+        var button = gManagerWindow.document.getElementById("detail-enable-btn");
+        EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+        observer.callback = function() {
+          observer.checkDisplayed("inlinesettings1@tests.mozilla.org");
+
+          settings = grid.querySelectorAll("rows > setting");
+          is(settings.length, SETTINGS_ROWS, "Grid should have settings children");
+
+          gCategoryUtilities.openType("extension", run_next_test);
+        };
+      });
+    });
+  });
+});
+
+
+// Addon with options.xul that requires a restart to disable,
+// disabling and enabling should not hide and show settings UI.
+add_test(function() {
+  observer.checkHidden("inlinesettings1@tests.mozilla.org");
+
+  var addon = get_addon_element(gManagerWindow, "inlinesettings2@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings2@tests.mozilla.org");
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    ok(settings.length > 0, "Grid should have settings children");
+
+    // disable
+    var button = gManagerWindow.document.getElementById("detail-disable-btn");
+    button.scrollIntoView();
+    EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+    observer.checkNotHidden();
+
+    settings = grid.querySelectorAll("rows > setting");
+    ok(settings.length > 0, "Grid should still have settings children");
+
+    // cancel pending disable
+    button = gManagerWindow.document.getElementById("detail-enable-btn");
+    button.scrollIntoView();
+    EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+    observer.checkNotDisplayed();
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
+
+// Tests bindings with existing prefs.
+add_test(function() {
+  observer.checkHidden("inlinesettings2@tests.mozilla.org");
+
+  // Ensure these prefs are set. They should be set above, but somebody might
+  // change the tests above.
+  var profD = Services.dirsvc.get("ProfD", Ci.nsIFile);
+  Services.prefs.setBoolPref("extensions.inlinesettings1.bool", false);
+  Services.prefs.setIntPref("extensions.inlinesettings1.boolint", 1);
+  Services.prefs.setIntPref("extensions.inlinesettings1.integer", 12);
+  Preferences.set("extensions.inlinesettings1.string", "bar\u03DE/");
+  Services.prefs.setCharPref("extensions.inlinesettings1.color", "#FF9900");
+  Services.prefs.setCharPref("extensions.inlinesettings1.file", profD.path);
+  Services.prefs.setCharPref("extensions.inlinesettings1.directory", profD.path);
+
+  var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings1@tests.mozilla.org");
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+
+    var input = gManagerWindow.document.getAnonymousElementByAttribute(settings[0], "anonid", "input");
+    is(input.checked, false, "Checkbox should have initial value");
+
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[1], "anonid", "input");
+    is(input.checked, true, "Checkbox should have initial value");
+
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[2], "anonid", "input");
+    is(input.value, "12", "Number box should have initial value");
+
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[3], "anonid", "input");
+    is(input.value, "bar\u03DE/", "Text box should have initial value");
+
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[5], "anonid", "input");
+    is(input.color, "#FF9900", "Color picker should have initial value");
+
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[6], "anonid", "input");
+    is(input.value, profD.path, "Label should have initial value");
+    is(input.tooltipText, profD.path, "Label tooltip should have initial value");
+
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[7], "anonid", "input");
+    is(input.value, profD.path, "Label value should have initial value");
+    is(input.tooltipText, profD.path, "Label tooltip should have initial value");
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
+
+// Tests bindings with existing prefs.
+add_test(function() {
+  observer.checkHidden("inlinesettings1@tests.mozilla.org");
+
+  // Ensure these prefs are set. They should be set above, but somebody might
+  // change the tests above.
+  Services.prefs.setBoolPref("extensions.inlinesettings3.radioBool", false);
+  Services.prefs.setIntPref("extensions.inlinesettings3.radioInt", 6);
+  Preferences.set("extensions.inlinesettings3.radioString", "kilo \u338F");
+  Services.prefs.setIntPref("extensions.inlinesettings3.menulist", 9);
+
+  var addon = get_addon_element(gManagerWindow, "inlinesettings3@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings3@tests.mozilla.org");
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+
+    var radios = settings[0].getElementsByTagName("radio");
+    isnot(radios[0].selected, true, "Correct radio button should be selected");
+    is(radios[1].selected, true, "Correct radio button should be selected");
+
+    radios = settings[1].getElementsByTagName("radio");
+    isnot(radios[0].selected, true, "Correct radio button should be selected");
+    isnot(radios[1].selected, true, "Correct radio button should be selected");
+    is(radios[2].selected, true, "Correct radio button should be selected");
+
+    radios = settings[2].getElementsByTagName("radio");
+    isnot(radios[0].selected, true, "Correct radio button should be selected");
+    isnot(radios[1].selected, true, "Correct radio button should be selected");
+    is(radios[2].selected, true, "Correct radio button should be selected");
+
+    var input = settings[3].firstElementChild;
+    is(input.value, "9", "Menulist should have initial value");
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings_browser.js b/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings_browser.js
new file mode 100644
index 000000000..5a704530a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings_browser.js
@@ -0,0 +1,207 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/* globals TestUtils */
+
+var {Extension} = Components.utils.import("resource://gre/modules/Extension.jsm", {});
+
+var gAddon;
+var gOtherAddon;
+var gManagerWindow;
+var gCategoryUtilities;
+
+var installedAddons = [];
+
+function installAddon(details) {
+  let id = Cc["@mozilla.org/uuid-generator;1"].getService(Ci.nsIUUIDGenerator)
+                                              .generateUUID().number;
+  if (!details.manifest) {
+    details.manifest = {};
+  }
+  details.manifest.applications = {gecko: {id}};
+  let xpi = Extension.generateXPI(details);
+
+  return AddonManager.installTemporaryAddon(xpi).then(addon => {
+    SimpleTest.registerCleanupFunction(function() {
+      addon.uninstall();
+
+      Services.obs.notifyObservers(xpi, "flush-cache-entry", null);
+      xpi.remove(false);
+    });
+
+    return addon;
+  });
+}
+
+add_task(function*() {
+  gAddon = yield installAddon({
+    manifest: {
+      "options_ui": {
+        "page": "options.html",
+      }
+    },
+
+    files: {
+      "options.html": `<!DOCTYPE html>
+        <html>
+          <head>
+            <meta charset="UTF-8">
+            <style type="text/css">
+              body > p {
+                height: 300px;
+                margin: 0;
+              }
+              body.bigger > p {
+                height: 600px;
+              }
+            </style>
+          </head>
+          <body>
+            <p>The quick mauve fox jumps over the opalescent dog.</p>
+          </body>
+        </html>`,
+    },
+  });
+
+  // Create another add-on with no inline options, to verify that detail
+  // view switches work correctly.
+  gOtherAddon = yield installAddon({});
+
+  gManagerWindow = yield open_manager("addons://list/extension");
+  gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+});
+
+
+function* openDetailsBrowser(addonId) {
+  var addon = get_addon_element(gManagerWindow, addonId);
+
+  is(addon.mAddon.optionsType, AddonManager.OPTIONS_TYPE_INLINE_BROWSER,
+     "Options should be inline browser type");
+
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+
+  is_element_visible(button, "Preferences button should be visible");
+
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  yield TestUtils.topicObserved(AddonManager.OPTIONS_NOTIFICATION_DISPLAYED,
+                                (subject, data) => data == addonId);
+
+  is(gManagerWindow.gViewController.currentViewId,
+     `addons://detail/${encodeURIComponent(addonId)}/preferences`,
+     "Current view should scroll to preferences");
+
+  var browser = gManagerWindow.document.querySelector(
+    "#detail-grid > rows > .inline-options-browser");
+  var rows = browser.parentNode;
+
+  ok(browser, "Grid should have a browser child");
+  is(browser.localName, "browser", "Grid should have a browser child");
+  is(browser.currentURI.spec, addon.mAddon.optionsURL, "Browser has the expected options URL loaded")
+
+  is(browser.clientWidth, rows.clientWidth,
+     "Browser should be the same width as its parent node");
+
+  button = gManagerWindow.document.getElementById("detail-prefs-btn");
+  is_element_hidden(button, "Preferences button should not be visible");
+
+  return browser;
+}
+
+
+add_task(function* test_inline_browser_addon() {
+  let browser = yield openDetailsBrowser(gAddon.id);
+
+  let body = browser.contentDocument.body;
+
+  function checkHeights(expected) {
+    is(body.clientHeight, expected, `Document body should be ${expected}px tall`);
+    is(body.clientHeight, body.scrollHeight,
+       "Document body should be tall enough to fit its contents");
+
+    let heightDiff = browser.clientHeight - expected;
+    ok(heightDiff >= 0 && heightDiff < 50,
+       "Browser should be slightly taller than the document body");
+  }
+
+  // Delay long enough to avoid hitting our resize rate limit.
+  let delay = () => new Promise(resolve => setTimeout(resolve, 300));
+
+  checkHeights(300);
+
+  info("Increase the document height, and expect the browser to grow correspondingly");
+  body.classList.toggle("bigger");
+
+  yield delay();
+
+  checkHeights(600);
+
+  info("Decrease the document height, and expect the browser to shrink correspondingly");
+  body.classList.toggle("bigger");
+
+  yield delay();
+
+  checkHeights(300);
+
+  yield new Promise(resolve =>
+    gCategoryUtilities.openType("extension", resolve));
+
+  browser = gManagerWindow.document.querySelector(
+    ".inline-options-browser");
+
+  is(browser, null, "Options browser should be removed from the document");
+});
+
+
+// Test that loading an add-on with no inline browser works as expected
+// after having viewed our main test add-on.
+add_task(function* test_plain_addon() {
+  var addon = get_addon_element(gManagerWindow, gOtherAddon.id);
+
+  is(addon.mAddon.optionsType, null, "Add-on should have no options");
+
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  yield EventUtils.synthesizeMouseAtCenter(addon, { clickCount: 1 }, gManagerWindow);
+
+  EventUtils.synthesizeMouseAtCenter(addon, { clickCount: 2 }, gManagerWindow);
+
+  yield BrowserTestUtils.waitForEvent(gManagerWindow, "ViewChanged");
+
+  is(gManagerWindow.gViewController.currentViewId,
+     `addons://detail/${encodeURIComponent(gOtherAddon.id)}`,
+     "Detail view should be open");
+
+  var browser = gManagerWindow.document.querySelector(
+    "#detail-grid > rows > .inline-options-browser");
+
+  is(browser, null, "Detail view should have no inline browser");
+
+  yield new Promise(resolve =>
+    gCategoryUtilities.openType("extension", resolve));
+});
+
+
+// Test that loading the original add-on details successfully creates a
+// browser.
+add_task(function* test_inline_browser_addon_again() {
+  let browser = yield openDetailsBrowser(gAddon.id);
+
+  yield new Promise(resolve =>
+    gCategoryUtilities.openType("extension", resolve));
+
+  browser = gManagerWindow.document.querySelector(
+    ".inline-options-browser");
+
+  is(browser, null, "Options browser should be removed from the document");
+});
+
+add_task(function*() {
+  yield close_manager(gManagerWindow);
+
+  gManagerWindow = null;
+  gCategoryUtilities = null;
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings_custom.js b/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings_custom.js
new file mode 100644
index 000000000..ecd10852d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings_custom.js
@@ -0,0 +1,92 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests various aspects of the details view
+
+var gManagerWindow;
+var gCategoryUtilities;
+
+function installAddon(aCallback) {
+  AddonManager.getInstallForURL(TESTROOT + "addons/browser_inlinesettings1_custom.xpi",
+                                function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function() {
+        executeSoon(aCallback);
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+function test() {
+  waitForExplicitFinish();
+
+  installAddon(function () {
+    open_manager("addons://list/extension", function(aWindow) {
+      gManagerWindow = aWindow;
+      gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+      run_next_test();
+    });
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    AddonManager.getAddonByID("inlinesettings1@tests.mozilla.org", function(aAddon) {
+      aAddon.uninstall();
+      finish();
+    });
+  });
+}
+
+// Addon with options.xul, with custom <setting> binding
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+  is(addon.mAddon.optionsType, AddonManager.OPTIONS_TYPE_INLINE, "Options should be inline type");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  is_element_visible(button, "Preferences button should be visible");
+
+  run_next_test();
+});
+
+// Addon with options.xul, also a test for the setting.xml bindings
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    is(gManagerWindow.gViewController.currentViewId,
+       "addons://detail/inlinesettings1%40tests.mozilla.org/preferences",
+       "Current view should scroll to preferences");
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, 1, "Grid should have settings children");
+
+    ok(settings[0].hasAttribute("first-row"), "First visible row should have first-row attribute");
+
+    var style = window.getComputedStyle(settings[0], null);
+    is(style.getPropertyValue("background-color"), "rgb(0, 0, 255)", "Background color should be set");
+    is(style.getPropertyValue("display"), "-moz-grid-line", "Display should be set");
+    is(style.getPropertyValue("-moz-binding"), 'url("chrome://inlinesettings/content/binding.xml#custom")', "Binding should be set");
+
+    var label = gManagerWindow.document.getAnonymousElementByAttribute(settings[0], "anonid", "label");
+    is(label.textContent, "Custom", "Localized string should be shown");
+
+    var input = gManagerWindow.document.getAnonymousElementByAttribute(settings[0], "anonid", "input");
+    isnot(input, null, "Binding should be applied");
+    is(input.value, "Woah!", "Binding should be applied");
+
+    button = gManagerWindow.document.getElementById("detail-prefs-btn");
+    is_element_hidden(button, "Preferences button should not be visible");
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings_info.js b/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings_info.js
new file mode 100644
index 000000000..ce618b7fa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_inlinesettings_info.js
@@ -0,0 +1,574 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests various aspects of the details view
+Components.utils.import("resource://gre/modules/Preferences.jsm");
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gProvider;
+
+const SETTINGS_ROWS = 8;
+
+var MockFilePicker = SpecialPowers.MockFilePicker;
+MockFilePicker.init(window);
+
+var observer = {
+  lastDisplayed: null,
+  callback: null,
+  checkDisplayed: function(aExpected) {
+    is(this.lastDisplayed, aExpected, "'addon-options-displayed' notification should have fired");
+    this.lastDisplayed = null;
+  },
+  checkNotDisplayed: function() {
+    is(this.lastDisplayed, null, "'addon-options-displayed' notification should not have fired");
+  },
+  lastHidden: null,
+  checkHidden: function(aExpected) {
+    is(this.lastHidden, aExpected, "'addon-options-hidden' notification should have fired");
+    this.lastHidden = null;
+  },
+  checkNotHidden: function() {
+    is(this.lastHidden, null, "'addon-options-hidden' notification should not have fired");
+  },
+  observe: function(aSubject, aTopic, aData) {
+    if (aTopic == AddonManager.OPTIONS_NOTIFICATION_DISPLAYED) {
+      this.lastDisplayed = aData;
+      // Test if the binding has applied before the observers are notified. We test the second setting here,
+      // because the code operates on the first setting and we want to check it applies to all.
+      var setting = aSubject.querySelector("rows > setting[first-row] ~ setting");
+      var input = gManagerWindow.document.getAnonymousElementByAttribute(setting, "class", "preferences-title");
+      isnot(input, null, "XBL binding should be applied");
+
+      // Add some extra height to the scrolling pane to ensure that it needs to scroll when appropriate.
+      gManagerWindow.document.getElementById("detail-controls").style.marginBottom = "1000px";
+
+      if (this.callback) {
+        var tempCallback = this.callback;
+        this.callback = null;
+        tempCallback();
+      }
+    } else if (aTopic == AddonManager.OPTIONS_NOTIFICATION_HIDDEN) {
+      this.lastHidden = aData;
+    }
+  }
+};
+
+function installAddon(aCallback) {
+  AddonManager.getInstallForURL(TESTROOT + "addons/browser_inlinesettings1_info.xpi",
+                                function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function() {
+        executeSoon(aCallback);
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+function checkScrolling(aShouldHaveScrolled) {
+  var detailView = gManagerWindow.document.getElementById("detail-view");
+  var boxObject = detailView.boxObject;
+  ok(detailView.scrollHeight > boxObject.height, "Page should require scrolling");
+  if (aShouldHaveScrolled)
+    isnot(detailView.scrollTop, 0, "Page should have scrolled");
+  else
+    is(detailView.scrollTop, 0, "Page should not have scrolled");
+}
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "inlinesettings2@tests.mozilla.org",
+    name: "Inline Settings (Regular)",
+    version: "1",
+    optionsURL: CHROMEROOT + "options.xul",
+    optionsType: AddonManager.OPTIONS_TYPE_INLINE_INFO,
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_DISABLE,
+  }, {
+    id: "inlinesettings3@tests.mozilla.org",
+    name: "Inline Settings (More Options)",
+    description: "Tests for option types introduced after Mozilla 7.0",
+    version: "1",
+    optionsURL: CHROMEROOT + "more_options.xul",
+    optionsType: AddonManager.OPTIONS_TYPE_INLINE_INFO
+  }, {
+    id: "noninlinesettings@tests.mozilla.org",
+    name: "Non-Inline Settings",
+    version: "1",
+    optionsURL: CHROMEROOT + "addon_prefs.xul"
+  }]);
+
+  installAddon(function () {
+    open_manager("addons://list/extension", function(aWindow) {
+      gManagerWindow = aWindow;
+      gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+      Services.obs.addObserver(observer,
+                               AddonManager.OPTIONS_NOTIFICATION_DISPLAYED,
+                               false);
+      Services.obs.addObserver(observer,
+                               AddonManager.OPTIONS_NOTIFICATION_HIDDEN,
+                               false);
+
+      run_next_test();
+    });
+  });
+}
+
+function end_test() {
+  Services.obs.removeObserver(observer,
+                              AddonManager.OPTIONS_NOTIFICATION_DISPLAYED);
+
+  Services.prefs.clearUserPref("extensions.inlinesettings1.bool");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.boolint");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.integer");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.string");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.color");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.file");
+  Services.prefs.clearUserPref("extensions.inlinesettings1.directory");
+  Services.prefs.clearUserPref("extensions.inlinesettings3.radioBool");
+  Services.prefs.clearUserPref("extensions.inlinesettings3.radioInt");
+  Services.prefs.clearUserPref("extensions.inlinesettings3.radioString");
+  Services.prefs.clearUserPref("extensions.inlinesettings3.menulist");
+
+  MockFilePicker.cleanup();
+
+  close_manager(gManagerWindow, function() {
+    observer.checkHidden("inlinesettings2@tests.mozilla.org");
+    Services.obs.removeObserver(observer,
+                                AddonManager.OPTIONS_NOTIFICATION_HIDDEN);
+
+    AddonManager.getAddonByID("inlinesettings1@tests.mozilla.org", function(aAddon) {
+      aAddon.uninstall();
+      finish();
+    });
+  });
+}
+
+// Addon with options.xul
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+  is(addon.mAddon.optionsType, AddonManager.OPTIONS_TYPE_INLINE_INFO, "Options should be inline info type");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  is_element_hidden(button, "Preferences button should be hidden");
+
+  run_next_test();
+});
+
+// Addon with inline preferences as optionsURL
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "inlinesettings2@tests.mozilla.org");
+  is(addon.mAddon.optionsType, AddonManager.OPTIONS_TYPE_INLINE_INFO, "Options should be inline info type");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  is_element_hidden(button, "Preferences button should be hidden");
+
+  run_next_test();
+});
+
+// Addon with non-inline preferences as optionsURL
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "noninlinesettings@tests.mozilla.org");
+  is(addon.mAddon.optionsType, AddonManager.OPTIONS_TYPE_DIALOG, "Options should be dialog type");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  is_element_visible(button, "Preferences button should be visible");
+
+  run_next_test();
+});
+
+// Addon with options.xul, also a test for the setting.xml bindings
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings1@tests.mozilla.org");
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, SETTINGS_ROWS, "Grid should have settings children");
+
+    ok(settings[0].hasAttribute("first-row"), "First visible row should have first-row attribute");
+    Services.prefs.setBoolPref("extensions.inlinesettings1.bool", false);
+    var input = gManagerWindow.document.getAnonymousElementByAttribute(settings[0], "anonid", "input");
+    isnot(input.checked, true, "Checkbox should have initial value");
+    is(input.label, "Check box label", "Checkbox should be labelled");
+    EventUtils.synthesizeMouseAtCenter(input, { clickCount: 1 }, gManagerWindow);
+    is(input.checked, true, "Checkbox should have updated value");
+    is(Services.prefs.getBoolPref("extensions.inlinesettings1.bool"), true, "Bool pref should have been updated");
+    EventUtils.synthesizeMouseAtCenter(input, { clickCount: 1 }, gManagerWindow);
+    isnot(input.checked, true, "Checkbox should have updated value");
+    is(Services.prefs.getBoolPref("extensions.inlinesettings1.bool"), false, "Bool pref should have been updated");
+
+    ok(!settings[1].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setIntPref("extensions.inlinesettings1.boolint", 0);
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[1], "anonid", "input");
+    isnot(input.checked, true, "Checkbox should have initial value");
+    EventUtils.synthesizeMouseAtCenter(input, { clickCount: 1 }, gManagerWindow);
+    is(input.checked, true, "Checkbox should have updated value");
+    is(Services.prefs.getIntPref("extensions.inlinesettings1.boolint"), 1, "BoolInt pref should have been updated");
+    EventUtils.synthesizeMouseAtCenter(input, { clickCount: 1 }, gManagerWindow);
+    isnot(input.checked, true, "Checkbox should have updated value");
+    is(Services.prefs.getIntPref("extensions.inlinesettings1.boolint"), 2, "BoolInt pref should have been updated");
+
+    ok(!settings[2].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setIntPref("extensions.inlinesettings1.integer", 0);
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[2], "anonid", "input");
+    is(input.value, "0", "Number box should have initial value");
+    input.select();
+    EventUtils.synthesizeKey("1", {}, gManagerWindow);
+    EventUtils.synthesizeKey("3", {}, gManagerWindow);
+    is(input.value, "13", "Number box should have updated value");
+    is(Services.prefs.getIntPref("extensions.inlinesettings1.integer"), 13, "Integer pref should have been updated");
+    EventUtils.synthesizeKey("VK_DOWN", {}, gManagerWindow);
+    is(input.value, "12", "Number box should have updated value");
+    is(Services.prefs.getIntPref("extensions.inlinesettings1.integer"), 12, "Integer pref should have been updated");
+
+    ok(!settings[3].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setCharPref("extensions.inlinesettings1.string", "foo");
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[3], "anonid", "input");
+    is(input.value, "foo", "Text box should have initial value");
+    input.select();
+    EventUtils.synthesizeKey("b", {}, gManagerWindow);
+    EventUtils.synthesizeKey("a", {}, gManagerWindow);
+    EventUtils.synthesizeKey("r", {}, gManagerWindow);
+    is(input.value, "bar", "Text box should have updated value");
+    is(Services.prefs.getCharPref("extensions.inlinesettings1.string"), "bar", "String pref should have been updated");
+
+    ok(!settings[4].hasAttribute("first-row"), "Not the first row");
+    input = settings[4].firstElementChild;
+    is(input.value, "1", "Menulist should have initial value");
+    input.focus();
+    EventUtils.synthesizeKey("b", {}, gManagerWindow);
+    is(input.value, "2", "Menulist should have updated value");
+    is(gManagerWindow._testValue, "2", "Menulist oncommand handler should've updated the test value");
+    delete gManagerWindow._testValue;
+
+    ok(!settings[5].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setCharPref("extensions.inlinesettings1.color", "#FF0000");
+    input = gManagerWindow.document.getAnonymousElementByAttribute(settings[5], "anonid", "input");
+    is(input.color, "#FF0000", "Color picker should have initial value");
+    input.focus();
+    EventUtils.synthesizeKey("VK_RIGHT", {}, gManagerWindow);
+    EventUtils.synthesizeKey("VK_RIGHT", {}, gManagerWindow);
+    EventUtils.synthesizeKey("VK_RETURN", {}, gManagerWindow);
+    input.hidePopup();
+    is(input.color, "#FF9900", "Color picker should have updated value");
+    is(Services.prefs.getCharPref("extensions.inlinesettings1.color"), "#FF9900", "Color pref should have been updated");
+
+    try {
+      ok(!settings[6].hasAttribute("first-row"), "Not the first row");
+      var button = gManagerWindow.document.getAnonymousElementByAttribute(settings[6], "anonid", "button");
+
+      // Workaround for bug 1155324 - we need to ensure that the button is scrolled into view.
+      button.scrollIntoView();
+
+      input = gManagerWindow.document.getAnonymousElementByAttribute(settings[6], "anonid", "input");
+      is(input.value, "", "Label value should be empty");
+      is(input.tooltipText, "", "Label tooltip should be empty");
+
+      var profD = Services.dirsvc.get("ProfD", Ci.nsIFile);
+      var curProcD = Services.dirsvc.get("CurProcD", Ci.nsIFile);
+
+      MockFilePicker.returnFiles = [profD];
+      MockFilePicker.returnValue = Ci.nsIFilePicker.returnOK;
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+      is(MockFilePicker.mode, Ci.nsIFilePicker.modeOpen, "File picker mode should be open file");
+      is(input.value, profD.path, "Label value should match file chosen");
+      is(input.tooltipText, profD.path, "Label tooltip should match file chosen");
+      is(Services.prefs.getCharPref("extensions.inlinesettings1.file"), profD.path, "File pref should match file chosen");
+
+      MockFilePicker.returnFiles = [curProcD];
+      MockFilePicker.returnValue = Ci.nsIFilePicker.returnCancel;
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+      is(MockFilePicker.mode, Ci.nsIFilePicker.modeOpen, "File picker mode should be open file");
+      is(input.value, profD.path, "Label value should not have changed");
+      is(input.tooltipText, profD.path, "Label tooltip should not have changed");
+      is(Services.prefs.getCharPref("extensions.inlinesettings1.file"), profD.path, "File pref should not have changed");
+
+      ok(!settings[7].hasAttribute("first-row"), "Not the first row");
+      button = gManagerWindow.document.getAnonymousElementByAttribute(settings[7], "anonid", "button");
+      input = gManagerWindow.document.getAnonymousElementByAttribute(settings[7], "anonid", "input");
+      is(input.value, "", "Label value should be empty");
+      is(input.tooltipText, "", "Label tooltip should be empty");
+
+      MockFilePicker.returnFiles = [profD];
+      MockFilePicker.returnValue = Ci.nsIFilePicker.returnOK;
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+      is(MockFilePicker.mode, Ci.nsIFilePicker.modeGetFolder, "File picker mode should be directory");
+      is(input.value, profD.path, "Label value should match file chosen");
+      is(input.tooltipText, profD.path, "Label tooltip should match file chosen");
+      is(Services.prefs.getCharPref("extensions.inlinesettings1.directory"), profD.path, "Directory pref should match file chosen");
+
+      MockFilePicker.returnFiles = [curProcD];
+      MockFilePicker.returnValue = Ci.nsIFilePicker.returnCancel;
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+      is(MockFilePicker.mode, Ci.nsIFilePicker.modeGetFolder, "File picker mode should be directory");
+      is(input.value, profD.path, "Label value should not have changed");
+      is(input.tooltipText, profD.path, "Label tooltip should not have changed");
+      is(Services.prefs.getCharPref("extensions.inlinesettings1.directory"), profD.path, "Directory pref should not have changed");
+
+    } finally {
+      button = gManagerWindow.document.getElementById("detail-prefs-btn");
+      is_element_hidden(button, "Preferences button should not be visible");
+
+      gCategoryUtilities.openType("extension", run_next_test);
+    }
+  });
+});
+
+// Tests for the setting.xml bindings introduced after Mozilla 7
+add_test(function() {
+  observer.checkHidden("inlinesettings1@tests.mozilla.org");
+
+  var addon = get_addon_element(gManagerWindow, "inlinesettings3@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings3@tests.mozilla.org");
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, 4, "Grid should have settings children");
+
+    ok(settings[0].hasAttribute("first-row"), "First visible row should have first-row attribute");
+    Services.prefs.setBoolPref("extensions.inlinesettings3.radioBool", false);
+    var radios = settings[0].getElementsByTagName("radio");
+    isnot(radios[0].selected, true, "Correct radio button should be selected");
+    is(radios[1].selected, true, "Correct radio button should be selected");
+    EventUtils.synthesizeMouseAtCenter(radios[0], { clickCount: 1 }, gManagerWindow);
+    is(Services.prefs.getBoolPref("extensions.inlinesettings3.radioBool"), true, "Radio pref should have been updated");
+    EventUtils.synthesizeMouseAtCenter(radios[1], { clickCount: 1 }, gManagerWindow);
+    is(Services.prefs.getBoolPref("extensions.inlinesettings3.radioBool"), false, "Radio pref should have been updated");
+
+    ok(!settings[1].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setIntPref("extensions.inlinesettings3.radioInt", 5);
+    radios = settings[1].getElementsByTagName("radio");
+    isnot(radios[0].selected, true, "Correct radio button should be selected");
+    is(radios[1].selected, true, "Correct radio button should be selected");
+    isnot(radios[2].selected, true, "Correct radio button should be selected");
+    EventUtils.synthesizeMouseAtCenter(radios[0], { clickCount: 1 }, gManagerWindow);
+    is(Services.prefs.getIntPref("extensions.inlinesettings3.radioInt"), 4, "Radio pref should have been updated");
+    EventUtils.synthesizeMouseAtCenter(radios[2], { clickCount: 1 }, gManagerWindow);
+    is(Services.prefs.getIntPref("extensions.inlinesettings3.radioInt"), 6, "Radio pref should have been updated");
+
+    ok(!settings[2].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setCharPref("extensions.inlinesettings3.radioString", "juliet");
+    radios = settings[2].getElementsByTagName("radio");
+    isnot(radios[0].selected, true, "Correct radio button should be selected");
+    is(radios[1].selected, true, "Correct radio button should be selected");
+    isnot(radios[2].selected, true, "Correct radio button should be selected");
+    EventUtils.synthesizeMouseAtCenter(radios[0], { clickCount: 1 }, gManagerWindow);
+    is(Services.prefs.getCharPref("extensions.inlinesettings3.radioString"), "india", "Radio pref should have been updated");
+    EventUtils.synthesizeMouseAtCenter(radios[2], { clickCount: 1 }, gManagerWindow);
+    is(Preferences.get("extensions.inlinesettings3.radioString", "wrong"), "kilo \u338F", "Radio pref should have been updated");
+
+    ok(!settings[3].hasAttribute("first-row"), "Not the first row");
+    Services.prefs.setIntPref("extensions.inlinesettings3.menulist", 8);
+    var input = settings[3].firstElementChild;
+    is(input.value, "8", "Menulist should have initial value");
+    input.focus();
+    EventUtils.synthesizeKey("n", {}, gManagerWindow);
+    is(input.value, "9", "Menulist should have updated value");
+    is(Services.prefs.getIntPref("extensions.inlinesettings3.menulist"), 9, "Menulist pref should have been updated");
+
+    button = gManagerWindow.document.getElementById("detail-prefs-btn");
+    is_element_hidden(button, "Preferences button should not be visible");
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
+
+// Addon with inline preferences as optionsURL
+add_test(function() {
+  observer.checkHidden("inlinesettings3@tests.mozilla.org");
+
+  var addon = get_addon_element(gManagerWindow, "inlinesettings2@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings2@tests.mozilla.org");
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, 5, "Grid should have settings children");
+
+    var node = settings[0];
+    node = settings[0];
+    is_element_hidden(node, "Unsupported settings should not be visible");
+    ok(!node.hasAttribute("first-row"), "Hidden row is not the first row");
+
+    node = settings[1];
+    is(node.nodeName, "setting", "Should be a setting node");
+    ok(node.hasAttribute("first-row"), "First visible row should have first-row attribute");
+    var description = gManagerWindow.document.getAnonymousElementByAttribute(node, "class", "preferences-description");
+    is(description.textContent, "Description Attribute", "Description node should contain description");
+
+    node = settings[2];
+    is(node.nodeName, "setting", "Should be a setting node");
+    ok(!node.hasAttribute("first-row"), "Not the first row");
+    description = gManagerWindow.document.getAnonymousElementByAttribute(node, "class", "preferences-description");
+    is(description.textContent, "Description Text Node", "Description node should contain description");
+
+    node = settings[3];
+    is(node.nodeName, "setting", "Should be a setting node");
+    ok(!node.hasAttribute("first-row"), "Not the first row");
+    description = gManagerWindow.document.getAnonymousElementByAttribute(node, "class", "preferences-description");
+    is(description.textContent, "This is a test, all this text should be visible", "Description node should contain description");
+    var button = node.firstElementChild;
+    isnot(button, null, "There should be a button");
+
+    node = settings[4];
+    is_element_hidden(node, "Unsupported settings should not be visible");
+    ok(!node.hasAttribute("first-row"), "Hidden row is not the first row");
+
+    button = gManagerWindow.document.getElementById("detail-prefs-btn");
+    is_element_hidden(button, "Preferences button should not be visible");
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
+
+// Addon with non-inline preferences as optionsURL
+add_test(function() {
+  observer.checkHidden("inlinesettings2@tests.mozilla.org");
+
+  var addon = get_addon_element(gManagerWindow, "noninlinesettings@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkNotDisplayed();
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, 0, "Grid should not have settings children");
+
+    var button = gManagerWindow.document.getElementById("detail-prefs-btn");
+    is_element_visible(button, "Preferences button should be visible");
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
+
+// Addon with options.xul, disabling and enabling should hide and show settings UI
+add_test(function() {
+  observer.checkNotHidden();
+
+  var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings1@tests.mozilla.org");
+    is(gManagerWindow.gViewController.currentViewId,
+       "addons://detail/inlinesettings1%40tests.mozilla.org",
+       "Current view should not scroll to preferences");
+    checkScrolling(false);
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, SETTINGS_ROWS, "Grid should have settings children");
+
+    // disable
+    var button = gManagerWindow.document.getElementById("detail-disable-btn");
+    button.focus(); // make sure it's in view
+    EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+    observer.checkHidden("inlinesettings1@tests.mozilla.org");
+
+    settings = grid.querySelectorAll("rows > setting");
+    is(settings.length, 0, "Grid should not have settings children");
+
+    gCategoryUtilities.openType("extension", function() {
+      var addon = get_addon_element(gManagerWindow, "inlinesettings1@tests.mozilla.org");
+      addon.parentNode.ensureElementIsVisible(addon);
+
+      var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+      is_element_hidden(button, "Preferences button should not be visible");
+
+      button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+      wait_for_view_load(gManagerWindow, function() {
+        var grid = gManagerWindow.document.getElementById("detail-grid");
+        var settings = grid.querySelectorAll("rows > setting");
+        is(settings.length, 0, "Grid should not have settings children");
+
+        // enable
+        var button = gManagerWindow.document.getElementById("detail-enable-btn");
+        EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+        observer.callback = function() {
+          observer.checkDisplayed("inlinesettings1@tests.mozilla.org");
+
+          settings = grid.querySelectorAll("rows > setting");
+          is(settings.length, SETTINGS_ROWS, "Grid should have settings children");
+
+          gCategoryUtilities.openType("extension", run_next_test);
+        };
+      });
+    });
+  });
+});
+
+
+// Addon with options.xul that requires a restart to disable,
+// disabling and enabling should not hide and show settings UI.
+add_test(function() {
+  observer.checkHidden("inlinesettings1@tests.mozilla.org");
+
+  var addon = get_addon_element(gManagerWindow, "inlinesettings2@tests.mozilla.org");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "details-btn");
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    observer.checkDisplayed("inlinesettings2@tests.mozilla.org");
+
+    var grid = gManagerWindow.document.getElementById("detail-grid");
+    var settings = grid.querySelectorAll("rows > setting");
+    ok(settings.length > 0, "Grid should have settings children");
+
+    // disable
+    var button = gManagerWindow.document.getElementById("detail-disable-btn");
+    button.focus(); // make sure it's in view
+    EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+    observer.checkNotHidden();
+
+    settings = grid.querySelectorAll("rows > setting");
+    ok(settings.length > 0, "Grid should still have settings children");
+
+    // cancel pending disable
+    button = gManagerWindow.document.getElementById("detail-enable-btn");
+    button.focus(); // make sure it's in view
+    EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+    observer.checkNotDisplayed();
+
+    gCategoryUtilities.openType("extension", run_next_test);
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_install.js b/toolkit/mozapps/webextensions/test/browser/browser_install.js
new file mode 100644
index 000000000..880a4624d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_install.js
@@ -0,0 +1,312 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests tha installs and undoing installs show up correctly
+
+var gManagerWindow;
+var gCategoryUtilities;
+
+var gApp = document.getElementById("bundle_brand").getString("brandShortName");
+var gSearchCount = 0;
+
+function test() {
+  requestLongerTimeout(2);
+  waitForExplicitFinish();
+
+  // Turn on searching for this test
+  Services.prefs.setIntPref(PREF_SEARCH_MAXRESULTS, 15);
+  Services.prefs.setCharPref("extensions.getAddons.search.url", TESTROOT + "browser_install.xml");
+  // Allow http update checks
+  Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    Services.prefs.clearUserPref("extensions.checkUpdateSecurity");
+
+    AddonManager.getAddonByID("install1@tests.mozilla.org", function(aAddon) {
+      aAddon.uninstall();
+      finish();
+    });
+  });
+}
+
+function get_node(parent, anonid) {
+  return parent.ownerDocument.getAnonymousElementByAttribute(parent, "anonid", anonid);
+}
+
+function installAddon(aCallback) {
+  AddonManager.getInstallForURL(TESTROOT + "addons/browser_install1_2.xpi",
+                                function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function() {
+        executeSoon(aCallback);
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+function installUpgrade(aCallback) {
+  AddonManager.getAddonByID("install1@tests.mozilla.org", function(aAddon) {
+    aAddon.findUpdates({
+      onUpdateAvailable: function(aAddon, aInstall) {
+        is(get_list_item_count(), 1, "Should be only one item in the list");
+
+        aInstall.addListener({
+          onDownloadEnded: function() {
+            is(get_list_item_count(), 1, "Should be only one item in the list once the update has started");
+          },
+          onInstallEnded: function() {
+            executeSoon(aCallback);
+          }
+        });
+        aInstall.install();
+      }
+    }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  });
+}
+
+function cancelInstall(aCallback) {
+  AddonManager.getInstallForURL(TESTROOT + "addons/browser_install1_2.xpi",
+                                function(aInstall) {
+    aInstall.addListener({
+      onDownloadEnded: function(aInstall) {
+        executeSoon(function() {
+          aInstall.cancel();
+          aCallback();
+        });
+        return false;
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+function installSearchResult(aCallback) {
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  // Search for something different each time
+  searchBox.value = "foo" + gSearchCount;
+  gSearchCount++;
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    let remote = gManagerWindow.document.getElementById("search-filter-remote")
+    EventUtils.synthesizeMouseAtCenter(remote, { }, gManagerWindow);
+
+    let item = get_addon_element(gManagerWindow, "install1@tests.mozilla.org");
+    ok(!!item, "Should see the search result in the list");
+
+    let status = get_node(item, "install-status");
+    EventUtils.synthesizeMouseAtCenter(get_node(status, "install-remote-btn"), {}, gManagerWindow);
+
+    item.mInstall.addListener({
+      onInstallEnded: function() {
+        executeSoon(aCallback);
+      }
+    });
+  });
+}
+
+function get_list_item_count() {
+  return get_test_items_in_list(gManagerWindow).length;
+}
+
+function check_undo_install() {
+  is(get_list_item_count(), 1, "Should be only one item in the list");
+
+  let item = get_addon_element(gManagerWindow, "install1@tests.mozilla.org");
+  ok(!!item, "Should see the pending install in the list");
+  // Force XBL to apply
+  item.clientTop;
+  is_element_visible(get_node(item, "pending"), "Pending message should be visible");
+  is(get_node(item, "pending").textContent, "Install Tests will be installed after you restart " + gApp + ".", "Pending message should be correct");
+
+  EventUtils.synthesizeMouseAtCenter(get_node(item, "undo-btn"), {}, gManagerWindow);
+
+  is(get_list_item_count(), 0, "Should be no items in the list");
+
+  item = get_addon_element(gManagerWindow, "install1@tests.mozilla.org");
+  ok(!item, "Should no longer see the pending install");
+}
+
+function check_undo_upgrade() {
+  is(get_list_item_count(), 1, "Should be only one item in the list");
+
+  let item = get_addon_element(gManagerWindow, "install1@tests.mozilla.org");
+  ok(!!item, "Should see the pending upgrade in the list");
+  // Force XBL to apply
+  item.clientTop;
+  is_element_visible(get_node(item, "pending"), "Pending message should be visible");
+  is(get_node(item, "pending").textContent, "Install Tests will be updated after you restart " + gApp + ".", "Pending message should be correct");
+
+  EventUtils.synthesizeMouseAtCenter(get_node(item, "undo-btn"), {}, gManagerWindow);
+
+  is(get_list_item_count(), 1, "Should be only one item in the list");
+
+  item = get_addon_element(gManagerWindow, "install1@tests.mozilla.org");
+  ok(!!item, "Should still see installed item in the list");
+  is_element_hidden(get_node(item, "pending"), "Pending message should be hidden");
+}
+
+// Install an add-on through the API with the manager open
+add_test(function() {
+  gCategoryUtilities.openType("extension", function() {
+    installAddon(function() {
+      check_undo_install();
+      run_next_test();
+    });
+  });
+});
+
+// Install an add-on with the manager closed then open it
+add_test(function() {
+  close_manager(gManagerWindow, function() {
+    installAddon(function() {
+      open_manager(null, function(aWindow) {
+        gManagerWindow = aWindow;
+        gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+        check_undo_install();
+        run_next_test();
+      });
+    });
+  });
+});
+
+// Install an add-on through the search page and then undo it
+add_test(function() {
+  installSearchResult(function() {
+    check_undo_install();
+    run_next_test();
+  });
+});
+
+// Install an add-on through the search page then switch to the extensions page
+// and then undo it
+add_test(function() {
+  installSearchResult(function() {
+    gCategoryUtilities.openType("extension", function() {
+      check_undo_install();
+      run_next_test();
+    });
+  });
+});
+
+// Install an add-on through the search page then re-open the manager and then
+// undo it
+add_test(function() {
+  installSearchResult(function() {
+    close_manager(gManagerWindow, function() {
+        open_manager("addons://list/extension", function(aWindow) {
+        gManagerWindow = aWindow;
+        gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+        check_undo_install();
+        run_next_test();
+      });
+    });
+  });
+});
+
+// Cancel an install after download with the manager open
+add_test(function() {
+  cancelInstall(function() {
+    is(get_list_item_count(), 0, "Should be no items in the list");
+
+    run_next_test();
+  });
+});
+
+// Cancel an install after download with the manager closed
+add_test(function() {
+  close_manager(gManagerWindow, function() {
+    cancelInstall(function() {
+      open_manager(null, function(aWindow) {
+        gManagerWindow = aWindow;
+        gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+        is(get_list_item_count(), 0, "Should be no items in the list");
+
+        run_next_test();
+      });
+    });
+  });
+});
+
+// Install an existing add-on for the subsequent tests
+add_test(function() {
+  AddonManager.getInstallForURL(TESTROOT + "addons/browser_install1_1.xpi",
+                                function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: run_next_test
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+});
+
+// Install an upgrade through the API with the manager open
+add_test(function() {
+  installAddon(function() {
+    check_undo_upgrade();
+    run_next_test();
+  });
+});
+
+// Install an upgrade through the API with the manager open
+add_test(function() {
+  installUpgrade(function() {
+    check_undo_upgrade();
+    run_next_test();
+  });
+});
+
+// Install an upgrade through the API with the manager closed
+add_test(function() {
+  close_manager(gManagerWindow, function() {
+    installAddon(function() {
+      open_manager(null, function(aWindow) {
+        gManagerWindow = aWindow;
+        gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+        check_undo_upgrade();
+        run_next_test();
+      });
+    });
+  });
+});
+
+// Cancel an upgrade after download with the manager open
+add_test(function() {
+  cancelInstall(function() {
+    is(get_list_item_count(), 1, "Should be no items in the list");
+    let item = get_addon_element(gManagerWindow, "install1@tests.mozilla.org");
+    ok(!!item, "Should still see installed item in the list");
+    is_element_hidden(get_node(item, "pending"), "Pending message should be hidden");
+
+    run_next_test();
+  });
+});
+
+// Cancel an upgrade after download with the manager closed
+add_test(function() {
+  close_manager(gManagerWindow, function() {
+    cancelInstall(function() {
+      open_manager(null, function(aWindow) {
+        gManagerWindow = aWindow;
+        gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+        is(get_list_item_count(), 1, "Should be no items in the list");
+        let item = get_addon_element(gManagerWindow, "install1@tests.mozilla.org");
+        ok(!!item, "Should still see installed item in the list");
+        is_element_hidden(get_node(item, "pending"), "Pending message should be hidden");
+
+        run_next_test();
+      });
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_install.rdf b/toolkit/mozapps/webextensions/test/browser/browser_install.rdf
new file mode 100644
index 000000000..437bf9b85
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_install.rdf
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:install1@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>https://example.com/browser/toolkit/mozapps/extensions/test/browser/browser_install1_3.xpi</em:updateLink>
+                <em:updateHash>sha1:4f0f4391914e3e036beca50cbac33958e5269643</em:updateHash>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_install.rdf^headers^ b/toolkit/mozapps/webextensions/test/browser/browser_install.rdf^headers^
new file mode 100644
index 000000000..2e4f8163b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_install.rdf^headers^
@@ -0,0 +1 @@
+Connection: close
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_install.xml b/toolkit/mozapps/webextensions/test/browser/browser_install.xml
new file mode 100644
index 000000000..0643c811a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_install.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="1">
+  <addon>
+    <name>Install Tests</name>
+    <type id='1'>Extension</type>
+    <guid>install1@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test add-on</summary>
+    <description>Test add-on</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="2">http://example.com/browser/toolkit/mozapps/extensions/test/browser/addons/browser_install1_2.xpi</install>
+  </addon>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_install1_3.xpi b/toolkit/mozapps/webextensions/test/browser/browser_install1_3.xpi
new file mode 100644
index 000000000..de3c90353
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_install1_3.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_installssl.js b/toolkit/mozapps/webextensions/test/browser/browser_installssl.js
new file mode 100644
index 000000000..b0726ef9e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_installssl.js
@@ -0,0 +1,374 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const xpi = RELATIVE_DIR + "addons/browser_installssl.xpi";
+const redirect = RELATIVE_DIR + "redirect.sjs?";
+const SUCCESS = 0;
+const NETWORK_FAILURE = AddonManager.ERROR_NETWORK_FAILURE;
+
+const HTTP = "http://example.com/";
+const HTTPS = "https://example.com/";
+const NOCERT = "https://nocert.example.com/";
+const SELFSIGNED = "https://self-signed.example.com/";
+const UNTRUSTED = "https://untrusted.example.com/";
+const EXPIRED = "https://expired.example.com/";
+
+const PREF_INSTALL_REQUIREBUILTINCERTS = "extensions.install.requireBuiltInCerts";
+
+var gTests = [];
+var gStart = 0;
+var gLast = 0;
+var gPendingInstall = null;
+
+function test() {
+  gStart = Date.now();
+  requestLongerTimeout(4);
+  waitForExplicitFinish();
+
+  registerCleanupFunction(function() {
+    var cos = Cc["@mozilla.org/security/certoverride;1"].
+              getService(Ci.nsICertOverrideService);
+    cos.clearValidityOverride("nocert.example.com", -1);
+    cos.clearValidityOverride("self-signed.example.com", -1);
+    cos.clearValidityOverride("untrusted.example.com", -1);
+    cos.clearValidityOverride("expired.example.com", -1);
+
+    try {
+      Services.prefs.clearUserPref(PREF_INSTALL_REQUIREBUILTINCERTS);
+    }
+    catch (e) {
+    }
+
+    if (gPendingInstall) {
+      gTests = [];
+      ok(false, "Timed out in the middle of downloading " + gPendingInstall.sourceURI.spec);
+      try {
+        gPendingInstall.cancel();
+      }
+      catch (e) {
+      }
+    }
+  });
+
+  run_next_test();
+}
+
+function end_test() {
+  info("All tests completed in " + (Date.now() - gStart) + "ms");
+  finish();
+}
+
+function add_install_test(mainURL, redirectURL, expectedStatus) {
+  gTests.push([mainURL, redirectURL, expectedStatus]);
+}
+
+function run_install_tests(callback) {
+  function run_next_install_test() {
+    if (gTests.length == 0) {
+      callback();
+      return;
+    }
+    gLast = Date.now();
+
+    let [mainURL, redirectURL, expectedStatus] = gTests.shift();
+    if (redirectURL) {
+      var url = mainURL + redirect + redirectURL + xpi;
+      var message = "Should have seen the right result for an install redirected from " +
+                    mainURL + " to " + redirectURL;
+    }
+    else {
+      url = mainURL + xpi;
+      message = "Should have seen the right result for an install from " +
+                mainURL;
+    }
+
+    AddonManager.getInstallForURL(url, function(install) {
+      gPendingInstall = install;
+      install.addListener({
+        onDownloadEnded: function(install) {
+          is(SUCCESS, expectedStatus, message);
+          info("Install test ran in " + (Date.now() - gLast) + "ms");
+          // Don't proceed with the install
+          install.cancel();
+          gPendingInstall = null;
+          run_next_install_test();
+          return false;
+        },
+
+        onDownloadFailed: function(install) {
+          is(install.error, expectedStatus, message);
+          info("Install test ran in " + (Date.now() - gLast) + "ms");
+          gPendingInstall = null;
+          run_next_install_test();
+        }
+      });
+      install.install();
+    }, "application/x-xpinstall");
+  }
+
+  run_next_install_test();
+}
+
+// Add overrides for the bad certificates
+function addCertOverrides() {
+  addCertOverride("nocert.example.com", Ci.nsICertOverrideService.ERROR_MISMATCH);
+  addCertOverride("self-signed.example.com", Ci.nsICertOverrideService.ERROR_UNTRUSTED);
+  addCertOverride("untrusted.example.com", Ci.nsICertOverrideService.ERROR_UNTRUSTED);
+  addCertOverride("expired.example.com", Ci.nsICertOverrideService.ERROR_TIME);
+}
+
+// Runs tests with built-in certificates required, no certificate exceptions
+// and no hashes
+add_test(function() {
+  // Tests that a simple install works as expected.
+  add_install_test(HTTP,       null,       SUCCESS);
+  add_install_test(HTTPS,      null,       NETWORK_FAILURE);
+  add_install_test(NOCERT,     null,       NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, null,       NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  null,       NETWORK_FAILURE);
+  add_install_test(EXPIRED,    null,       NETWORK_FAILURE);
+
+  // Tests that redirecting from http to other servers works as expected
+  add_install_test(HTTP,       HTTP,       SUCCESS);
+  add_install_test(HTTP,       HTTPS,      SUCCESS);
+  add_install_test(HTTP,       NOCERT,     NETWORK_FAILURE);
+  add_install_test(HTTP,       SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(HTTP,       UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(HTTP,       EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from valid https to other servers works as expected
+  add_install_test(HTTPS,      HTTP,       NETWORK_FAILURE);
+  add_install_test(HTTPS,      HTTPS,      NETWORK_FAILURE);
+  add_install_test(HTTPS,      NOCERT,     NETWORK_FAILURE);
+  add_install_test(HTTPS,      SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(HTTPS,      UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(HTTPS,      EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from nocert https to other servers works as expected
+  add_install_test(NOCERT,     HTTP,       NETWORK_FAILURE);
+  add_install_test(NOCERT,     HTTPS,      NETWORK_FAILURE);
+  add_install_test(NOCERT,     NOCERT,     NETWORK_FAILURE);
+  add_install_test(NOCERT,     SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(NOCERT,     UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(NOCERT,     EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from self-signed https to other servers works as expected
+  add_install_test(SELFSIGNED, HTTP,       NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, HTTPS,      NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, NOCERT,     NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from untrusted https to other servers works as expected
+  add_install_test(UNTRUSTED,  HTTP,       NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  HTTPS,      NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  NOCERT,     NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from expired https to other servers works as expected
+  add_install_test(EXPIRED,    HTTP,       NETWORK_FAILURE);
+  add_install_test(EXPIRED,    HTTPS,      NETWORK_FAILURE);
+  add_install_test(EXPIRED,    NOCERT,     NETWORK_FAILURE);
+  add_install_test(EXPIRED,    SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(EXPIRED,    UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(EXPIRED,    EXPIRED,    NETWORK_FAILURE);
+
+  run_install_tests(run_next_test);
+});
+
+// Runs tests without requiring built-in certificates, no certificate
+// exceptions and no hashes
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, false);
+
+  // Tests that a simple install works as expected.
+  add_install_test(HTTP,       null,       SUCCESS);
+  add_install_test(HTTPS,      null,       SUCCESS);
+  add_install_test(NOCERT,     null,       NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, null,       NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  null,       NETWORK_FAILURE);
+  add_install_test(EXPIRED,    null,       NETWORK_FAILURE);
+
+  // Tests that redirecting from http to other servers works as expected
+  add_install_test(HTTP,       HTTP,       SUCCESS);
+  add_install_test(HTTP,       HTTPS,      SUCCESS);
+  add_install_test(HTTP,       NOCERT,     NETWORK_FAILURE);
+  add_install_test(HTTP,       SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(HTTP,       UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(HTTP,       EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from valid https to other servers works as expected
+  add_install_test(HTTPS,      HTTP,       NETWORK_FAILURE);
+  add_install_test(HTTPS,      HTTPS,      SUCCESS);
+  add_install_test(HTTPS,      NOCERT,     NETWORK_FAILURE);
+  add_install_test(HTTPS,      SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(HTTPS,      UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(HTTPS,      EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from nocert https to other servers works as expected
+  add_install_test(NOCERT,     HTTP,       NETWORK_FAILURE);
+  add_install_test(NOCERT,     HTTPS,      NETWORK_FAILURE);
+  add_install_test(NOCERT,     NOCERT,     NETWORK_FAILURE);
+  add_install_test(NOCERT,     SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(NOCERT,     UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(NOCERT,     EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from self-signed https to other servers works as expected
+  add_install_test(SELFSIGNED, HTTP,       NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, HTTPS,      NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, NOCERT,     NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from untrusted https to other servers works as expected
+  add_install_test(UNTRUSTED,  HTTP,       NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  HTTPS,      NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  NOCERT,     NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from expired https to other servers works as expected
+  add_install_test(EXPIRED,    HTTP,       NETWORK_FAILURE);
+  add_install_test(EXPIRED,    HTTPS,      NETWORK_FAILURE);
+  add_install_test(EXPIRED,    NOCERT,     NETWORK_FAILURE);
+  add_install_test(EXPIRED,    SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(EXPIRED,    UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(EXPIRED,    EXPIRED,    NETWORK_FAILURE);
+
+  run_install_tests(run_next_test);
+});
+
+// Runs tests with built-in certificates required, all certificate exceptions
+// and no hashes
+add_test(function() {
+  Services.prefs.clearUserPref(PREF_INSTALL_REQUIREBUILTINCERTS);
+  addCertOverrides();
+
+  // Tests that a simple install works as expected.
+  add_install_test(HTTP,       null,       SUCCESS);
+  add_install_test(HTTPS,      null,       NETWORK_FAILURE);
+  add_install_test(NOCERT,     null,       NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, null,       NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  null,       NETWORK_FAILURE);
+  add_install_test(EXPIRED,    null,       NETWORK_FAILURE);
+
+  // Tests that redirecting from http to other servers works as expected
+  add_install_test(HTTP,       HTTP,       SUCCESS);
+  add_install_test(HTTP,       HTTPS,      SUCCESS);
+  add_install_test(HTTP,       NOCERT,     SUCCESS);
+  add_install_test(HTTP,       SELFSIGNED, SUCCESS);
+  add_install_test(HTTP,       UNTRUSTED,  SUCCESS);
+  add_install_test(HTTP,       EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from valid https to other servers works as expected
+  add_install_test(HTTPS,      HTTP,       NETWORK_FAILURE);
+  add_install_test(HTTPS,      HTTPS,      NETWORK_FAILURE);
+  add_install_test(HTTPS,      NOCERT,     NETWORK_FAILURE);
+  add_install_test(HTTPS,      SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(HTTPS,      UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(HTTPS,      EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from nocert https to other servers works as expected
+  add_install_test(NOCERT,     HTTP,       NETWORK_FAILURE);
+  add_install_test(NOCERT,     HTTPS,      NETWORK_FAILURE);
+  add_install_test(NOCERT,     NOCERT,     NETWORK_FAILURE);
+  add_install_test(NOCERT,     SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(NOCERT,     UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(NOCERT,     EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from self-signed https to other servers works as expected
+  add_install_test(SELFSIGNED, HTTP,       NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, HTTPS,      NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, NOCERT,     NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from untrusted https to other servers works as expected
+  add_install_test(UNTRUSTED,  HTTP,       NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  HTTPS,      NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  NOCERT,     NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  EXPIRED,    NETWORK_FAILURE);
+
+  // Tests that redirecting from expired https to other servers works as expected
+  add_install_test(EXPIRED,    HTTP,       NETWORK_FAILURE);
+  add_install_test(EXPIRED,    HTTPS,      NETWORK_FAILURE);
+  add_install_test(EXPIRED,    NOCERT,     NETWORK_FAILURE);
+  add_install_test(EXPIRED,    SELFSIGNED, NETWORK_FAILURE);
+  add_install_test(EXPIRED,    UNTRUSTED,  NETWORK_FAILURE);
+  add_install_test(EXPIRED,    EXPIRED,    NETWORK_FAILURE);
+
+  run_install_tests(run_next_test);
+});
+
+// Runs tests without requiring built-in certificates, all certificate
+// exceptions and no hashes
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, false);
+
+  // Tests that a simple install works as expected.
+  add_install_test(HTTP,       null,       SUCCESS);
+  add_install_test(HTTPS,      null,       SUCCESS);
+  add_install_test(NOCERT,     null,       SUCCESS);
+  add_install_test(SELFSIGNED, null,       SUCCESS);
+  add_install_test(UNTRUSTED,  null,       SUCCESS);
+  add_install_test(EXPIRED,    null,       SUCCESS);
+
+  // Tests that redirecting from http to other servers works as expected
+  add_install_test(HTTP,       HTTP,       SUCCESS);
+  add_install_test(HTTP,       HTTPS,      SUCCESS);
+  add_install_test(HTTP,       NOCERT,     SUCCESS);
+  add_install_test(HTTP,       SELFSIGNED, SUCCESS);
+  add_install_test(HTTP,       UNTRUSTED,  SUCCESS);
+  add_install_test(HTTP,       EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from valid https to other servers works as expected
+  add_install_test(HTTPS,      HTTP,       NETWORK_FAILURE);
+  add_install_test(HTTPS,      HTTPS,      SUCCESS);
+  add_install_test(HTTPS,      NOCERT,     SUCCESS);
+  add_install_test(HTTPS,      SELFSIGNED, SUCCESS);
+  add_install_test(HTTPS,      UNTRUSTED,  SUCCESS);
+  add_install_test(HTTPS,      EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from nocert https to other servers works as expected
+  add_install_test(NOCERT,     HTTP,       NETWORK_FAILURE);
+  add_install_test(NOCERT,     HTTPS,      SUCCESS);
+  add_install_test(NOCERT,     NOCERT,     SUCCESS);
+  add_install_test(NOCERT,     SELFSIGNED, SUCCESS);
+  add_install_test(NOCERT,     UNTRUSTED,  SUCCESS);
+  add_install_test(NOCERT,     EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from self-signed https to other servers works as expected
+  add_install_test(SELFSIGNED, HTTP,       NETWORK_FAILURE);
+  add_install_test(SELFSIGNED, HTTPS,      SUCCESS);
+  add_install_test(SELFSIGNED, NOCERT,     SUCCESS);
+  add_install_test(SELFSIGNED, SELFSIGNED, SUCCESS);
+  add_install_test(SELFSIGNED, UNTRUSTED,  SUCCESS);
+  add_install_test(SELFSIGNED, EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from untrusted https to other servers works as expected
+  add_install_test(UNTRUSTED,  HTTP,       NETWORK_FAILURE);
+  add_install_test(UNTRUSTED,  HTTPS,      SUCCESS);
+  add_install_test(UNTRUSTED,  NOCERT,     SUCCESS);
+  add_install_test(UNTRUSTED,  SELFSIGNED, SUCCESS);
+  add_install_test(UNTRUSTED,  UNTRUSTED,  SUCCESS);
+  add_install_test(UNTRUSTED,  EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from expired https to other servers works as expected
+  add_install_test(EXPIRED,    HTTP,       NETWORK_FAILURE);
+  add_install_test(EXPIRED,    HTTPS,      SUCCESS);
+  add_install_test(EXPIRED,    NOCERT,     SUCCESS);
+  add_install_test(EXPIRED,    SELFSIGNED, SUCCESS);
+  add_install_test(EXPIRED,    UNTRUSTED,  SUCCESS);
+  add_install_test(EXPIRED,    EXPIRED,    SUCCESS);
+
+  run_install_tests(run_next_test);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_list.js b/toolkit/mozapps/webextensions/test/browser/browser_list.js
new file mode 100644
index 000000000..49427329f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_list.js
@@ -0,0 +1,956 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests the list view
+
+var tempScope = {};
+Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm", tempScope);
+var LightweightThemeManager = tempScope.LightweightThemeManager;
+const { REQUIRE_SIGNING } = Components.utils.import("resource://gre/modules/addons/AddonConstants.jsm", {});
+
+var gProvider;
+var gManagerWindow;
+var gCategoryUtilities;
+
+var gApp = document.getElementById("bundle_brand").getString("brandShortName");
+var gVersion = Services.appinfo.version;
+var gBlocklistURL = Services.urlFormatter.formatURLPref("extensions.blocklist.detailsURL");
+var gDate = new Date(2010, 7, 16);
+var infoURL = Services.urlFormatter.formatURLPref("app.support.baseURL") + "unsigned-addons";
+
+const EXPECTED_ADDONS = 13;
+
+var gLWTheme = {
+                id: "4",
+                version: "1",
+                name: "Bling",
+                description: "SO MUCH BLING!",
+                author: "Pixel Pusher",
+                homepageURL: "http://mochi.test:8888/data/index.html",
+                headerURL: "http://mochi.test:8888/data/header.png",
+                footerURL: "http://mochi.test:8888/data/footer.png",
+                previewURL: "http://mochi.test:8888/data/preview.png",
+                iconURL: "http://mochi.test:8888/data/icon.png"
+              };
+
+add_task(function*() {
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "Test add-on",
+    version: "1.0",
+    description: "A test add-on",
+    longDescription: " A longer description",
+    updateDate: gDate
+  }, {
+    id: "addon2@tests.mozilla.org",
+    name: "Test add-on 2",
+    version: "2.0",
+    longDescription: " A longer description",
+    _userDisabled: true,
+    isActive: false,
+  }, {
+    id: "addon3@tests.mozilla.org",
+    name: "Test add-on 3",
+    longDescription: " A longer description",
+    isActive: false,
+    isCompatible: false,
+    appDisabled: true,
+    permissions: AddonManager.PERM_CAN_ENABLE |
+                 AddonManager.PERM_CAN_DISABLE |
+                 AddonManager.PERM_CAN_UPGRADE
+  }, {
+    id: "addon4@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon4@tests.mozilla.org",
+    name: "Test add-on 4",
+    _userDisabled: true,
+    isActive: false,
+    blocklistState: Ci.nsIBlocklistService.STATE_SOFTBLOCKED
+  }, {
+    id: "addon5@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon5@tests.mozilla.org",
+    name: "Test add-on 5",
+    isActive: false,
+    blocklistState: Ci.nsIBlocklistService.STATE_BLOCKED,
+    appDisabled: true
+  }, {
+    id: "addon6@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon6@tests.mozilla.org",
+    name: "Test add-on 6",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon7@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon7@tests.mozilla.org",
+    name: "Test add-on 7",
+    blocklistState: Ci.nsIBlocklistService.STATE_OUTDATED,
+  }, {
+    id: "addon8@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon8@tests.mozilla.org",
+    name: "Test add-on 8",
+    blocklistState: Ci.nsIBlocklistService.STATE_VULNERABLE_UPDATE_AVAILABLE,
+  }, {
+    id: "addon9@tests.mozilla.org",
+    blocklistURL: "http://example.com/addon9@tests.mozilla.org",
+    name: "Test add-on 9",
+    blocklistState: Ci.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE,
+  }, {
+    id: "addon10@tests.mozilla.org",
+    name: "Test add-on 10",
+    signedState: AddonManager.SIGNEDSTATE_MISSING,
+  }, {
+    id: "addon11@tests.mozilla.org",
+    name: "Test add-on 11",
+    signedState: AddonManager.SIGNEDSTATE_MISSING,
+    isActive: false,
+    isCompatible: false,
+    appDisabled: true,
+  }, {
+    id: "addon12@tests.mozilla.org",
+    name: "Test add-on 12",
+    signedState: AddonManager.SIGNEDSTATE_PRELIMINARY,
+    foreignInstall: true,
+  }, {
+    id: "addon13@tests.mozilla.org",
+    name: "Test add-on 13",
+    signedState: AddonManager.SIGNEDSTATE_SIGNED,
+    foreignInstall: true,
+  }, {
+    id: "addon15@tests.mozilla.org",
+    name: "Test add-on 15",
+    hidden: true,
+  }]);
+
+  gManagerWindow = yield open_manager(null);
+  gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+});
+
+function get_test_items() {
+  var tests = "@tests.mozilla.org";
+
+  var items = {};
+  var item = gManagerWindow.document.getElementById("addon-list").firstChild;
+
+  while (item) {
+    if (item.mAddon.id.substring(item.mAddon.id.length - tests.length) == tests &&
+        !is_hidden(item))
+      items[item.mAddon.name] = item;
+    item = item.nextSibling;
+  }
+
+  return items;
+}
+
+function get_node(parent, anonid) {
+  return parent.ownerDocument.getAnonymousElementByAttribute(parent, "anonid", anonid);
+}
+
+function get_class_node(parent, cls) {
+  return parent.ownerDocument.getAnonymousElementByAttribute(parent, "class", cls);
+}
+
+// Check that the list appears to have displayed correctly and trigger some
+// changes
+add_task(function*() {
+  yield gCategoryUtilities.openType("extension");
+  let items = get_test_items();
+  is(Object.keys(items).length, EXPECTED_ADDONS, "Should be the right number of add-ons installed");
+
+  info("Addon 1");
+  let addon = items["Test add-on"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  let { name, version } = yield get_tooltip_info(addon);
+  is(get_node(addon, "name").value, "Test add-on", "Name should be correct");
+  is(name, "Test add-on", "Tooltip name should be correct");
+  is(version, "1.0", "Tooltip version should be correct");
+  is(get_node(addon, "description").value, "A test add-on", "Description should be correct");
+  is_element_hidden(get_class_node(addon, "disabled-postfix"), "Disabled postfix should be hidden");
+  is_element_hidden(get_class_node(addon, "update-postfix"), "Update postfix should be hidden");
+  is(get_node(addon, "date-updated").value, formatDate(gDate), "Update date should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Disabling");
+  EventUtils.synthesizeMouseAtCenter(get_node(addon, "disable-btn"), {}, gManagerWindow);
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be visible");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be visible");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_visible(get_node(addon, "pending"), "Pending message should be visible");
+  is(get_node(addon, "pending").textContent, "Test add-on will be disabled after you restart " + gApp + ".", "Pending message should be correct");
+
+  info("Addon 2");
+  addon = items["Test add-on 2"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 2", "Name should be correct");
+  is(name, "Test add-on 2", "Tooltip name should be correct");
+  is(version, "2.0", "Tooltip version should be correct");
+  is_element_hidden(get_node(addon, "description"), "Description should be hidden");
+  is_element_visible(get_class_node(addon, "disabled-postfix"), "Disabled postfix should be visible");
+  is_element_hidden(get_class_node(addon, "update-postfix"), "Update postfix should be hidden");
+  is(get_node(addon, "date-updated").value, "Unknown", "Date should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be visible");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Enabling");
+  EventUtils.synthesizeMouseAtCenter(get_node(addon, "enable-btn"), {}, gManagerWindow);
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_visible(get_node(addon, "pending"), "Pending message should be visible");
+  is(get_node(addon, "pending").textContent, "Test add-on 2 will be enabled after you restart " + gApp + ".", "Pending message should be correct");
+
+  info("Addon 3");
+  addon = items["Test add-on 3"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 3", "Name should be correct");
+  is(name, "Test add-on 3", "Tooltip name should be correct");
+  is(version, undefined, "Tooltip version should be hidden");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_hidden(get_node(addon, "remove-btn"), "Remove button should be hidden");
+
+  is_element_visible(get_node(addon, "warning"), "Warning message should be visible");
+  is(get_node(addon, "warning").textContent, "Test add-on 3 is incompatible with " + gApp + " " + gVersion + ".", "Warning message should be correct");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Addon 4");
+  addon = items["Test add-on 4"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 4", "Name should be correct");
+  is(name, "Test add-on 4", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be visible");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_visible(get_node(addon, "warning"), "Warning message should be visible");
+  is(get_node(addon, "warning").textContent, "Test add-on 4 is known to cause security or stability issues.", "Warning message should be correct");
+  is_element_visible(get_node(addon, "warning-link"), "Warning link should be visible");
+  is(get_node(addon, "warning-link").value, "More Information", "Warning link text should be correct");
+  is(get_node(addon, "warning-link").href, "http://example.com/addon4@tests.mozilla.org", "Warning link should be correct");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Enabling");
+  EventUtils.synthesizeMouseAtCenter(get_node(addon, "enable-btn"), {}, gManagerWindow);
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_visible(get_node(addon, "pending"), "Pending message should be visible");
+  is(get_node(addon, "pending").textContent, "Test add-on 4 will be enabled after you restart " + gApp + ".", "Pending message should be correct");
+
+  info("Addon 5");
+  addon = items["Test add-on 5"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 5", "Name should be correct");
+  is(name, "Test add-on 5", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_visible(get_node(addon, "error"), "Error message should be visible");
+  is(get_node(addon, "error").textContent, "Test add-on 5 has been disabled due to security or stability issues.", "Error message should be correct");
+  is_element_visible(get_node(addon, "error-link"), "Error link should be visible");
+  is(get_node(addon, "error-link").value, "More Information", "Error link text should be correct");
+  is(get_node(addon, "error-link").href, "http://example.com/addon5@tests.mozilla.org", "Error link should be correct");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Addon 6");
+  addon = items["Test add-on 6"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 6", "Name should be correct");
+  is(name, "Test add-on 6", "Tooltip name should be correct");
+  is_element_hidden(get_class_node(addon, "disabled-postfix"), "Disabled postfix should be hidden");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be visible");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Disabling");
+  EventUtils.synthesizeMouseAtCenter(get_node(addon, "disable-btn"), {}, gManagerWindow);
+  is_element_visible(get_class_node(addon, "disabled-postfix"), "Disabled postfix should be visible");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be visible");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be visible");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Addon 7");
+  addon = items["Test add-on 7"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 7", "Name should be correct");
+  is(name, "Test add-on 7", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_visible(get_node(addon, "warning"), "Warning message should be hidden");
+  is(get_node(addon, "warning").textContent, "An important update is available for Test add-on 7.", "Warning message should be correct");
+  is_element_visible(get_node(addon, "warning-link"), "Warning link should be visible");
+  is(get_node(addon, "warning-link").value, "Update Now", "Warning link text should be correct");
+  is(get_node(addon, "warning-link").href, "http://example.com/addon7@tests.mozilla.org", "Warning link should be correct");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Disabling");
+  EventUtils.synthesizeMouseAtCenter(get_node(addon, "disable-btn"), {}, gManagerWindow);
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be visible");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be visible");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_visible(get_node(addon, "pending"), "Pending message should be visible");
+  is(get_node(addon, "pending").textContent, "Test add-on 7 will be disabled after you restart " + gApp + ".", "Pending message should be correct");
+
+  info("Addon 8");
+  addon = items["Test add-on 8"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 8", "Name should be correct");
+  is(name, "Test add-on 8", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_visible(get_node(addon, "error"), "Error message should be visible");
+  is(get_node(addon, "error").textContent, "Test add-on 8 is known to be vulnerable and should be updated.", "Error message should be correct");
+  is_element_visible(get_node(addon, "error-link"), "Error link should be visible");
+  is(get_node(addon, "error-link").value, "Update Now", "Error link text should be correct");
+  is(get_node(addon, "error-link").href, "http://example.com/addon8@tests.mozilla.org", "Error link should be correct");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Addon 9");
+  addon = items["Test add-on 9"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 9", "Name should be correct");
+  is(name, "Test add-on 9", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_visible(get_node(addon, "error"), "Error message should be visible");
+  is(get_node(addon, "error").textContent, "Test add-on 9 is known to be vulnerable. Use with caution.", "Error message should be correct");
+  is_element_visible(get_node(addon, "error-link"), "Error link should be visible");
+  is(get_node(addon, "error-link").value, "More Information", "Error link text should be correct");
+  is(get_node(addon, "error-link").href, "http://example.com/addon9@tests.mozilla.org", "Error link should be correct");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  // These tests are only appropriate when signing can be turned off
+  if (!REQUIRE_SIGNING) {
+    info("Addon 10");
+    addon = items["Test add-on 10"];
+    addon.parentNode.ensureElementIsVisible(addon);
+    ({ name, version } = yield get_tooltip_info(addon));
+    is(get_node(addon, "name").value, "Test add-on 10", "Name should be correct");
+    is(name, "Test add-on 10", "Tooltip name should be correct");
+
+    is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+    is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+    is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+    is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+    is_element_visible(get_node(addon, "warning"), "Warning message should be visible");
+    is(get_node(addon, "warning").textContent, "Test add-on 10 could not be verified for use in " + gApp + ". Proceed with caution.", "Warning message should be correct");
+    is_element_visible(get_node(addon, "warning-link"), "Warning link should be visible");
+    is(get_node(addon, "warning-link").value, "More Information", "Warning link text should be correct");
+    is(get_node(addon, "warning-link").href, infoURL, "Warning link should be correct");
+    is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+    is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+    is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+    info("Addon 11");
+    addon = items["Test add-on 11"];
+    addon.parentNode.ensureElementIsVisible(addon);
+    ({ name, version } = yield get_tooltip_info(addon));
+    is(get_node(addon, "name").value, "Test add-on 11", "Name should be correct");
+    is(name, "Test add-on 11", "Tooltip name should be correct");
+
+    is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+    is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+    is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+    is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+    is_element_visible(get_node(addon, "warning"), "Warning message should be visible");
+    is(get_node(addon, "warning").textContent, "Test add-on 11 is incompatible with " + gApp + " " + gVersion + ".", "Warning message should be correct");
+    is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+    is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+    is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+    is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+    info("Filter for disabled unsigned extensions shouldn't appear because signing checks are off");
+    let filterButton = gManagerWindow.document.getElementById("show-disabled-unsigned-extensions");
+    let showAllButton = gManagerWindow.document.getElementById("show-all-extensions");
+    let signingInfoUI = gManagerWindow.document.getElementById("disabled-unsigned-addons-info");
+    is_element_hidden(filterButton, "Button for showing disabled unsigned extensions should be hidden");
+    is_element_hidden(showAllButton, "Button for showing all extensions should be hidden");
+    is_element_hidden(signingInfoUI, "Signing info UI should be hidden");
+  }
+});
+
+// Check the add-ons are now in the right state
+add_task(function*() {
+  let [a1, a2, a4, a6] = yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                                                   "addon2@tests.mozilla.org",
+                                                   "addon4@tests.mozilla.org",
+                                                   "addon6@tests.mozilla.org"]);
+
+  is(a1.pendingOperations, AddonManager.PENDING_DISABLE, "Add-on 1 should be pending disable");
+  is(a2.pendingOperations, AddonManager.PENDING_ENABLE, "Add-on 2 should be pending enable");
+  is(a4.pendingOperations, AddonManager.PENDING_ENABLE, "Add-on 4 should be pending enable");
+});
+
+// Reload the list to make sure the changes are still pending and that undoing
+// works
+add_task(function*() {
+  yield gCategoryUtilities.openType("plugin");
+  yield gCategoryUtilities.openType("extension");
+
+  let items = get_test_items();
+  is(Object.keys(items).length, EXPECTED_ADDONS, "Should be the right number of add-ons installed");
+
+  info("Addon 1");
+  let addon = items["Test add-on"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  let { name, version } = yield get_tooltip_info(addon);
+  is(get_node(addon, "name").value, "Test add-on", "Name should be correct");
+  is(name, "Test add-on", "Tooltip name should be correct");
+  is(version, "1.0", "Tooltip version should be correct");
+  is_element_visible(get_node(addon, "description"), "Description should be visible");
+  is(get_node(addon, "description").value, "A test add-on", "Description should be correct");
+  is_element_hidden(get_class_node(addon, "disabled-postfix"), "Disabled postfix should be hidden");
+  is_element_hidden(get_class_node(addon, "update-postfix"), "Update postfix should be hidden");
+  is(get_node(addon, "date-updated").value, formatDate(gDate), "Update date should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be visible");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_visible(get_node(addon, "pending"), "Pending message should be visible");
+  is(get_node(addon, "pending").textContent, "Test add-on will be disabled after you restart " + gApp + ".", "Pending message should be correct");
+
+  info("Undoing");
+  EventUtils.synthesizeMouseAtCenter(get_node(addon, "undo-btn"), {}, gManagerWindow);
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Addon 2");
+  addon = items["Test add-on 2"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 2", "Name should be correct");
+  is(name, "Test add-on 2", "Tooltip name should be correct");
+  is(version, "2.0", "Tooltip version should be correct");
+  is_element_hidden(get_node(addon, "description"), "Description should be hidden");
+  is_element_visible(get_class_node(addon, "disabled-postfix"), "Disabled postfix should be visible");
+  is_element_hidden(get_class_node(addon, "update-postfix"), "Update postfix should be hidden");
+  is(get_node(addon, "date-updated").value, "Unknown", "Date should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_visible(get_node(addon, "pending"), "Pending message should be visible");
+  is(get_node(addon, "pending").textContent, "Test add-on 2 will be enabled after you restart " + gApp + ".", "Pending message should be correct");
+
+  info("Undoing");
+  EventUtils.synthesizeMouseAtCenter(get_node(addon, "undo-btn"), {}, gManagerWindow);
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be visible");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Addon 4");
+  addon = items["Test add-on 4"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 4", "Name should be correct");
+  is(name, "Test add-on 4", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_visible(get_node(addon, "pending"), "Pending message should be visible");
+  is(get_node(addon, "pending").textContent, "Test add-on 4 will be enabled after you restart " + gApp + ".", "Pending message should be correct");
+
+  info("Undoing");
+  EventUtils.synthesizeMouseAtCenter(get_node(addon, "undo-btn"), {}, gManagerWindow);
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be visible");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_visible(get_node(addon, "warning"), "Warning message should be visible");
+  is(get_node(addon, "warning").textContent, "Test add-on 4 is known to cause security or stability issues.", "Warning message should be correct");
+  is_element_visible(get_node(addon, "warning-link"), "Warning link should be visible");
+  is(get_node(addon, "warning-link").value, "More Information", "Warning link text should be correct");
+  is(get_node(addon, "warning-link").href, "http://example.com/addon4@tests.mozilla.org", "Warning link should be correct");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Addon 6");
+  addon = items["Test add-on 6"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 6", "Name should be correct");
+  is(name, "Test add-on 6", "Tooltip name should be correct");
+  is_element_visible(get_class_node(addon, "disabled-postfix"), "Disabled postfix should be visible");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be visible");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be visible");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Enabling");
+  EventUtils.synthesizeMouseAtCenter(get_node(addon, "enable-btn"), {}, gManagerWindow);
+  is_element_hidden(get_class_node(addon, "disabled-postfix"), "Disabled postfix should be hidden");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be visible");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+
+  info("Addon 7");
+  addon = items["Test add-on 7"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 7", "Name should be correct");
+  is(name, "Test add-on 7", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be visible");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be visible");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_visible(get_node(addon, "pending"), "Pending message should be visible");
+  is(get_node(addon, "pending").textContent, "Test add-on 7 will be disabled after you restart " + gApp + ".", "Pending message should be correct");
+
+  info("Undoing");
+  EventUtils.synthesizeMouseAtCenter(get_node(addon, "undo-btn"), {}, gManagerWindow);
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_visible(get_node(addon, "warning"), "Warning message should be hidden");
+  is(get_node(addon, "warning").textContent, "An important update is available for Test add-on 7.", "Warning message should be correct");
+  is_element_visible(get_node(addon, "warning-link"), "Warning link should be visible");
+  is(get_node(addon, "warning-link").value, "Update Now", "Warning link text should be correct");
+  is(get_node(addon, "warning-link").href, "http://example.com/addon7@tests.mozilla.org", "Warning link should be correct");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+});
+
+// Check the add-ons are now in the right state
+add_task(function*() {
+  let [a1, a2, a4] = yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                                               "addon2@tests.mozilla.org",
+                                               "addon4@tests.mozilla.org"]);
+
+  is(a1.pendingOperations, 0, "Add-on 1 should not have any pending operations");
+  is(a2.pendingOperations, 0, "Add-on 1 should not have any pending operations");
+  is(a4.pendingOperations, 0, "Add-on 1 should not have any pending operations");
+});
+
+// Check that upgrades with onExternalInstall take effect immediately
+add_task(function*() {
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "Test add-on replacement",
+    version: "2.0",
+    description: "A test add-on with a new description",
+    updateDate: gDate,
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon14@tests.mozilla.org",
+    name: "Test add-on 14",
+    hidden: true,
+  }]);
+
+  let items = get_test_items();
+  is(Object.keys(items).length, EXPECTED_ADDONS, "Should be the right number of add-ons installed");
+
+  let addon = items["Test add-on replacement"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  let { name, version } = yield get_tooltip_info(addon);
+  is(get_node(addon, "name").value, "Test add-on replacement", "Name should be correct");
+  is(name, "Test add-on replacement", "Tooltip name should be correct");
+  is(version, "2.0", "Tooltip version should be correct");
+  is_element_visible(get_node(addon, "description"), "Description should be visible");
+  is(get_node(addon, "description").value, "A test add-on with a new description", "Description should be correct");
+  is_element_hidden(get_class_node(addon, "disabled-postfix"), "Disabled postfix should be hidden");
+  is_element_hidden(get_class_node(addon, "update-postfix"), "Update postfix should be hidden");
+  is(get_node(addon, "date-updated").value, formatDate(gDate), "Update date should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+  is_element_hidden(get_node(addon, "pending"), "Pending message should be hidden");
+});
+
+// Check that focus changes correctly move around the selected list item
+add_task(function*() {
+  function is_node_in_list(aNode) {
+    var list = gManagerWindow.document.getElementById("addon-list");
+
+    while (aNode && aNode != list)
+      aNode = aNode.parentNode;
+
+    if (aNode)
+      return true;
+    return false;
+  }
+
+  // Ignore the OSX full keyboard access setting
+  Services.prefs.setBoolPref("accessibility.tabfocus_applies_to_xul", false);
+
+  let items = get_test_items();
+
+  var fm = Cc["@mozilla.org/focus-manager;1"].
+           getService(Ci.nsIFocusManager);
+
+  let addon = items["Test add-on 6"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  EventUtils.synthesizeMouseAtCenter(addon, { }, gManagerWindow);
+  is(fm.focusedElement, addon.parentNode, "Focus should have moved to the list");
+
+  EventUtils.synthesizeKey("VK_TAB", { }, gManagerWindow);
+  is(fm.focusedElement, get_node(addon, "details-btn"), "Focus should have moved to the more button");
+
+  EventUtils.synthesizeKey("VK_TAB", { }, gManagerWindow);
+  is(fm.focusedElement, get_node(addon, "disable-btn"), "Focus should have moved to the disable button");
+
+  EventUtils.synthesizeKey("VK_TAB", { }, gManagerWindow);
+  is(fm.focusedElement, get_node(addon, "remove-btn"), "Focus should have moved to the remove button");
+
+  EventUtils.synthesizeKey("VK_TAB", { }, gManagerWindow);
+  ok(!is_node_in_list(fm.focusedElement), "Focus should be outside the list");
+
+  EventUtils.synthesizeKey("VK_TAB", { shiftKey: true }, gManagerWindow);
+  is(fm.focusedElement, get_node(addon, "remove-btn"), "Focus should have moved to the remove button");
+
+  EventUtils.synthesizeKey("VK_TAB", { shiftKey: true }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_TAB", { shiftKey: true }, gManagerWindow);
+  is(fm.focusedElement, get_node(addon, "details-btn"), "Focus should have moved to the more button");
+
+  EventUtils.synthesizeKey("VK_TAB", { shiftKey: true }, gManagerWindow);
+  is(fm.focusedElement, addon.parentNode, "Focus should have moved to the list");
+
+  EventUtils.synthesizeKey("VK_TAB", { shiftKey: true }, gManagerWindow);
+  ok(!is_node_in_list(fm.focusedElement), "Focus should be outside the list");
+
+  try {
+    Services.prefs.clearUserPref("accessibility.tabfocus_applies_to_xul");
+  }
+  catch (e) { }
+});
+
+
+add_task(function*() {
+  info("Enabling lightweight theme");
+  LightweightThemeManager.currentTheme = gLWTheme;
+
+  gManagerWindow.loadView("addons://list/theme");
+  yield new Promise(resolve => wait_for_view_load(gManagerWindow, resolve));
+
+  var addon = get_addon_element(gManagerWindow, "4@personas.mozilla.org");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  info("Disabling lightweight theme");
+  LightweightThemeManager.currentTheme = null;
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_visible(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  let [aAddon] = yield promiseAddonsByIDs(["4@personas.mozilla.org"]);
+  aAddon.uninstall();
+});
+
+// Check that onPropertyChanges for appDisabled updates the UI
+add_task(function*() {
+  info("Checking that onPropertyChanges for appDisabled updates the UI");
+
+  let [aAddon] = yield promiseAddonsByIDs(["addon2@tests.mozilla.org"]);
+  aAddon.userDisabled = true;
+  aAddon.isCompatible = true;
+  aAddon.appDisabled = false;
+
+  gManagerWindow.loadView("addons://list/extension");
+  yield new Promise(resolve => wait_for_view_load(gManagerWindow, resolve));
+  var el = get_addon_element(gManagerWindow, "addon2@tests.mozilla.org");
+
+  is(el.getAttribute("active"), "false", "Addon should not be marked as active");
+  is_element_hidden(get_node(el, "warning"), "Warning message should not be visible");
+
+  info("Making addon incompatible and appDisabled");
+  aAddon.isCompatible = false;
+  aAddon.appDisabled = true;
+
+  is(el.getAttribute("active"), "false", "Addon should not be marked as active");
+  is_element_visible(get_node(el, "warning"), "Warning message should be visible");
+  is(get_node(el, "warning").textContent, "Test add-on 2 is incompatible with " + gApp + " " + gVersion + ".", "Warning message should be correct");
+});
+
+// Check that the list displays correctly when signing is required
+add_task(function*() {
+  yield close_manager(gManagerWindow);
+  Services.prefs.setBoolPref("xpinstall.signatures.required", true);
+  gManagerWindow = yield open_manager(null);
+  gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+  yield gCategoryUtilities.openType("extension");
+  let items = get_test_items();
+  is(Object.keys(items).length, EXPECTED_ADDONS, "Should be the right number of add-ons installed");
+
+  info("Addon 10");
+  let addon = items["Test add-on 10"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  let { name, version } = yield get_tooltip_info(addon);
+  is(get_node(addon, "name").value, "Test add-on 10", "Name should be correct");
+  is(name, "Test add-on 10", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_visible(get_node(addon, "error"), "Error message should be visible");
+  is(get_node(addon, "error").textContent, "Test add-on 10 could not be verified for use in " + gApp + " and has been disabled.", "Error message should be correct");
+  is_element_visible(get_node(addon, "error-link"), "Error link should be visible");
+  is(get_node(addon, "error-link").value, "More Information", "Error link text should be correct");
+  is(get_node(addon, "error-link").href, infoURL, "Error link should be correct");
+
+  info("Addon 11");
+  addon = items["Test add-on 11"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 11", "Name should be correct");
+  is(name, "Test add-on 11", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_hidden(get_node(addon, "disable-btn"), "Disable button should be hidden");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_visible(get_node(addon, "error"), "Error message should be visible");
+  is(get_node(addon, "error").textContent, "Test add-on 11 could not be verified for use in " + gApp + " and has been disabled.", "Error message should be correct");
+  is_element_visible(get_node(addon, "error-link"), "Error link should be visible");
+  is(get_node(addon, "error-link").value, "More Information", "Error link text should be correct");
+  is(get_node(addon, "error-link").href, infoURL, "Error link should be correct");
+
+  info("Addon 12");
+  addon = items["Test add-on 12"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon))
+  is(get_node(addon, "name").value, "Test add-on 12", "Name should be correct");
+  is(name, "Test add-on 12", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+  is_element_hidden(get_node(addon, "error-link"), "Error link should be hidden");
+
+  info("Addon 13");
+  addon = items["Test add-on 13"];
+  addon.parentNode.ensureElementIsVisible(addon);
+  ({ name, version } = yield get_tooltip_info(addon));
+  is(get_node(addon, "name").value, "Test add-on 13", "Name should be correct");
+  is(name, "Test add-on 13", "Tooltip name should be correct");
+
+  is_element_hidden(get_node(addon, "preferences-btn"), "Preferences button should be hidden");
+  is_element_hidden(get_node(addon, "enable-btn"), "Enable button should be hidden");
+  is_element_visible(get_node(addon, "disable-btn"), "Disable button should be visible");
+  is_element_visible(get_node(addon, "remove-btn"), "Remove button should be visible");
+
+  is_element_hidden(get_node(addon, "warning"), "Warning message should be hidden");
+  is_element_hidden(get_node(addon, "warning-link"), "Warning link should be hidden");
+  is_element_hidden(get_node(addon, "error"), "Error message should be hidden");
+
+  info("Filter for disabled unsigned extensions");
+  let filterButton = gManagerWindow.document.getElementById("show-disabled-unsigned-extensions");
+  let showAllButton = gManagerWindow.document.getElementById("show-all-extensions");
+  let signingInfoUI = gManagerWindow.document.getElementById("disabled-unsigned-addons-info");
+  is_element_visible(filterButton, "Button for showing disabled unsigned extensions should be visible");
+  is_element_hidden(showAllButton, "Button for showing all extensions should be hidden");
+  is_element_hidden(signingInfoUI, "Signing info UI should be hidden");
+
+  filterButton.click();
+
+  yield new Promise(resolve => wait_for_view_load(gManagerWindow, resolve));
+
+  is_element_hidden(filterButton, "Button for showing disabled unsigned extensions should be hidden");
+  is_element_visible(showAllButton, "Button for showing all extensions should be visible");
+  is_element_visible(signingInfoUI, "Signing info UI should be visible");
+
+  items = get_test_items();
+  is(Object.keys(items).length, 2, "Two add-ons should be shown");
+  is(Object.keys(items)[0], "Test add-on 10", "The disabled unsigned extension should be shown");
+  is(Object.keys(items)[1], "Test add-on 11", "The disabled unsigned extension should be shown");
+
+  showAllButton.click();
+
+  yield new Promise(resolve => wait_for_view_load(gManagerWindow, resolve));
+
+  items = get_test_items();
+  is(Object.keys(items).length, EXPECTED_ADDONS, "All add-ons should be shown again");
+  is_element_visible(filterButton, "Button for showing disabled unsigned extensions should be visible again");
+  is_element_hidden(showAllButton, "Button for showing all extensions should be hidden again");
+  is_element_hidden(signingInfoUI, "Signing info UI should be hidden again");
+
+  Services.prefs.setBoolPref("xpinstall.signatures.required", false);
+});
+
+add_task(function*() {
+  return close_manager(gManagerWindow);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_manualupdates.js b/toolkit/mozapps/webextensions/test/browser/browser_manualupdates.js
new file mode 100644
index 000000000..0c5eb2da6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_manualupdates.js
@@ -0,0 +1,246 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests manual updates, including the Available Updates pane
+
+var gProvider;
+var gManagerWindow;
+var gCategoryUtilities;
+var gAvailableCategory;
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "auto updating addon",
+    version: "1.0",
+    applyBackgroundUpdates: AddonManager.AUTOUPDATE_ENABLE
+  }]);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+
+add_test(function() {
+  gAvailableCategory = gManagerWindow.gCategories.get("addons://updates/available");
+  is(gCategoryUtilities.isVisible(gAvailableCategory), false, "Available Updates category should initially be hidden");
+
+  gProvider.createAddons([{
+    id: "addon2@tests.mozilla.org",
+    name: "manually updating addon",
+    version: "1.0",
+    isCompatible: false,
+    blocklistState: Ci.nsIBlocklistService.STATE_BLOCKED,
+    applyBackgroundUpdates: AddonManager.AUTOUPDATE_DISABLE
+  }]);
+
+  is(gCategoryUtilities.isVisible(gAvailableCategory), false, "Available Updates category should still be hidden");
+
+  run_next_test();
+});
+
+
+add_test(function() {
+  let finished = 0;
+  function maybeRunNext() {
+    if (++finished == 2)
+      run_next_test();
+  }
+
+  gAvailableCategory.addEventListener("CategoryBadgeUpdated", function() {
+    gAvailableCategory.removeEventListener("CategoryBadgeUpdated", arguments.callee, false);
+    is(gCategoryUtilities.isVisible(gAvailableCategory), true, "Available Updates category should now be visible");
+    is(gAvailableCategory.badgeCount, 1, "Badge for Available Updates should now be 1");
+    maybeRunNext();
+  }, false);
+
+  gCategoryUtilities.openType("extension", function() {
+    gProvider.createInstalls([{
+      name: "manually updating addon (new and improved!)",
+      existingAddon: gProvider.addons[1],
+      version: "1.1",
+      releaseNotesURI: Services.io.newURI(TESTROOT + "thereIsNoFileHere.xhtml", null, null)
+    }]);
+
+    var item = get_addon_element(gManagerWindow, "addon2@tests.mozilla.org");
+    get_tooltip_info(item).then(({ version }) => {
+      is(version, "1.0", "Should still show the old version in the tooltip");
+      maybeRunNext();
+    });
+  });
+});
+
+
+add_test(function() {
+  wait_for_view_load(gManagerWindow, function() {
+    is(gManagerWindow.document.getElementById("categories").selectedItem.value, "addons://updates/available", "Available Updates category should now be selected");
+    is(gManagerWindow.gViewController.currentViewId, "addons://updates/available", "Available Updates view should be the current view");
+    run_next_test();
+  }, true);
+  EventUtils.synthesizeMouseAtCenter(gAvailableCategory, { }, gManagerWindow);
+});
+
+
+add_test(function() {
+  var list = gManagerWindow.document.getElementById("updates-list");
+  is(list.itemCount, 1, "Should be 1 available update listed");
+  var item = list.firstChild;
+  is(item.mAddon.id, "addon2@tests.mozilla.org", "Update item should be for the manually updating addon");
+
+  // The item in the list will be checking for update information asynchronously
+  // so we have to wait for it to complete. Doing the same async request should
+  // make our callback be called later.
+  AddonManager.getAllInstalls(run_next_test);
+});
+
+add_test(function() {
+  var list = gManagerWindow.document.getElementById("updates-list");
+  var item = list.firstChild;
+  get_tooltip_info(item).then(({ version }) => {
+    is(version, "1.1", "Update item should have version number of the update");
+    var postfix = gManagerWindow.document.getAnonymousElementByAttribute(item, "class", "update-postfix");
+    is_element_visible(postfix, "'Update' postfix should be visible");
+    is_element_visible(item._updateAvailable, "");
+    is_element_visible(item._relNotesToggle, "Release notes toggle should be visible");
+    is_element_hidden(item._warning, "Incompatible warning should be hidden");
+    is_element_hidden(item._error, "Blocklist error should be hidden");
+
+    info("Opening release notes");
+    item.addEventListener("RelNotesToggle", function() {
+      item.removeEventListener("RelNotesToggle", arguments.callee, false);
+      info("Release notes now open");
+
+      is_element_hidden(item._relNotesLoading, "Release notes loading message should be hidden");
+      is_element_visible(item._relNotesError, "Release notes error message should be visible");
+      is(item._relNotes.childElementCount, 0, "Release notes should be empty");
+
+      info("Closing release notes");
+      item.addEventListener("RelNotesToggle", function() {
+        item.removeEventListener("RelNotesToggle", arguments.callee, false);
+        info("Release notes now closed");
+        info("Setting Release notes URI to something that should load");
+        gProvider.installs[0].releaseNotesURI = Services.io.newURI(TESTROOT + "releaseNotes.xhtml", null, null)
+
+        info("Re-opening release notes");
+        item.addEventListener("RelNotesToggle", function() {
+          item.removeEventListener("RelNotesToggle", arguments.callee, false);
+          info("Release notes now open");
+
+          is_element_hidden(item._relNotesLoading, "Release notes loading message should be hidden");
+          is_element_hidden(item._relNotesError, "Release notes error message should be hidden");
+          isnot(item._relNotes.childElementCount, 0, "Release notes should have been inserted into container");
+          run_next_test();
+
+        }, false);
+        EventUtils.synthesizeMouseAtCenter(item._relNotesToggle, { }, gManagerWindow);
+        is_element_visible(item._relNotesLoading, "Release notes loading message should be visible");
+
+      }, false);
+      EventUtils.synthesizeMouseAtCenter(item._relNotesToggle, { }, gManagerWindow);
+
+    }, false);
+    EventUtils.synthesizeMouseAtCenter(item._relNotesToggle, { }, gManagerWindow);
+    is_element_visible(item._relNotesLoading, "Release notes loading message should be visible");
+  });
+});
+
+
+add_test(function() {
+  var badgeUpdated = false;
+  var installCompleted = false;
+
+  gAvailableCategory.addEventListener("CategoryBadgeUpdated", function() {
+    gAvailableCategory.removeEventListener("CategoryBadgeUpdated", arguments.callee, false);
+    if (installCompleted)
+      run_next_test();
+    else
+      badgeUpdated = true;
+  }, false);
+
+  var list = gManagerWindow.document.getElementById("updates-list");
+  var item = list.firstChild;
+  var updateBtn = item._updateBtn;
+  is_element_visible(updateBtn, "Update button should be visible");
+
+  var install = gProvider.installs[0];
+  var listener = {
+    onInstallStarted: function() {
+      info("Install started");
+      is_element_visible(item._installStatus, "Install progress widget should be visible");
+    },
+    onInstallEnded: function() {
+      install.removeTestListener(this);
+      info("Install ended");
+      is_element_hidden(item._installStatus, "Install progress widget should be hidden");
+
+      if (badgeUpdated)
+        run_next_test();
+      else
+        installCompleted = true;
+    }
+  };
+  install.addTestListener(listener);
+  EventUtils.synthesizeMouseAtCenter(updateBtn, { }, gManagerWindow);
+});
+
+
+add_test(function() {
+  is(gCategoryUtilities.isVisible(gAvailableCategory), true, "Available Updates category should still be visible");
+  is(gAvailableCategory.badgeCount, 0, "Badge for Available Updates should now be 0");
+
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.isVisible(gAvailableCategory), false, "Available Updates category should be hidden");
+
+    close_manager(gManagerWindow, function() {
+      open_manager(null, function(aWindow) {
+        gManagerWindow = aWindow;
+        gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+        gAvailableCategory = gManagerWindow.gCategories.get("addons://updates/available");
+
+        is(gCategoryUtilities.isVisible(gAvailableCategory), false, "Available Updates category should be hidden");
+
+        run_next_test();
+      });
+    });
+  });
+});
+
+add_test(function() {
+  gAvailableCategory.addEventListener("CategoryBadgeUpdated", function() {
+    gAvailableCategory.removeEventListener("CategoryBadgeUpdated", arguments.callee, false);
+    is(gCategoryUtilities.isVisible(gAvailableCategory), true, "Available Updates category should now be visible");
+    is(gAvailableCategory.badgeCount, 1, "Badge for Available Updates should now be 1");
+
+    gAvailableCategory.addEventListener("CategoryBadgeUpdated", function() {
+      gAvailableCategory.removeEventListener("CategoryBadgeUpdated", arguments.callee, false);
+      is(gCategoryUtilities.isVisible(gAvailableCategory), false, "Available Updates category should now be hidden");
+
+      run_next_test();
+    }, false);
+
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(aAddon) {
+      aAddon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_ENABLE;
+    });
+  }, false);
+
+  gProvider.createInstalls([{
+    name: "manually updating addon (new and even more improved!)",
+    existingAddon: gProvider.addons[1],
+    version: "1.2",
+    releaseNotesURI: Services.io.newURI(TESTROOT + "thereIsNoFileHere.xhtml", null, null)
+  }]);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_metadataTimeout.js b/toolkit/mozapps/webextensions/test/browser/browser_metadataTimeout.js
new file mode 100644
index 000000000..98be4b7f8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_metadataTimeout.js
@@ -0,0 +1,114 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test how update window behaves when metadata ping times out
+// bug 965788
+
+const URI_EXTENSION_UPDATE_DIALOG = "chrome://mozapps/content/extensions/update.xul";
+
+const PREF_GETADDONS_BYIDS            = "extensions.getAddons.get.url";
+const PREF_MIN_PLATFORM_COMPAT        = "extensions.minCompatiblePlatformVersion";
+const PREF_METADATA_LASTUPDATE        = "extensions.getAddons.cache.lastUpdate";
+
+Components.utils.import("resource://gre/modules/Promise.jsm");
+
+var repo = {};
+var ARContext = Components.utils.import("resource://gre/modules/addons/AddonRepository.jsm", repo);
+
+// Mock out the XMLHttpRequest factory for AddonRepository so
+// we can reply with a timeout
+var pXHRStarted = Promise.defer();
+var oldXHRConstructor = ARContext.ServiceRequest;
+ARContext.ServiceRequest = function() {
+  this._handlers = new Map();
+  this.mozBackgroundRequest = false;
+  this.timeout = undefined;
+  this.open = function(aMethod, aURI, aAsync) {
+      this.method = aMethod;
+      this.uri = aURI;
+      this.async = aAsync;
+      info("Opened XHR for " + aMethod + " " + aURI);
+    };
+  this.overrideMimeType = function(aMimeType) {
+      this.mimeType = aMimeType;
+    };
+  this.addEventListener = function(aEvent, aHandler, aCapture) {
+      this._handlers.set(aEvent, aHandler);
+    };
+  this.send = function(aBody) {
+      info("Send XHR for " + this.method + " " + this.uri + " handlers: " + [this._handlers.keys()].join(", "));
+      pXHRStarted.resolve(this);
+    }
+};
+
+
+// Returns promise{window}, resolves with a handle to the compatibility
+// check window
+function promise_open_compatibility_window(aInactiveAddonIds) {
+  let deferred = Promise.defer();
+  // This will reset the longer timeout multiplier to 2 which will give each
+  // test that calls open_compatibility_window a minimum of 60 seconds to
+  // complete.
+  requestLongerTimeout(2);
+
+  var variant = Cc["@mozilla.org/variant;1"].
+                createInstance(Ci.nsIWritableVariant);
+  variant.setFromVariant(aInactiveAddonIds);
+
+  // Cannot be modal as we want to interract with it, shouldn't cause problems
+  // with testing though.
+  var features = "chrome,centerscreen,dialog,titlebar";
+  var ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].
+           getService(Ci.nsIWindowWatcher);
+  var win = ww.openWindow(null, URI_EXTENSION_UPDATE_DIALOG, "", features, variant);
+
+  win.addEventListener("load", function() {
+    function page_shown(aEvent) {
+      if (aEvent.target.pageid)
+        info("Page " + aEvent.target.pageid + " shown");
+    }
+
+    win.removeEventListener("load", arguments.callee, false);
+
+    info("Compatibility dialog opened");
+
+    win.addEventListener("pageshow", page_shown, false);
+    win.addEventListener("unload", function() {
+      win.removeEventListener("unload", arguments.callee, false);
+      win.removeEventListener("pageshow", page_shown, false);
+      dump("Compatibility dialog closed\n");
+    }, false);
+
+    deferred.resolve(win);
+  }, false);
+  return deferred.promise;
+}
+
+function promise_window_close(aWindow) {
+  let deferred = Promise.defer();
+  aWindow.addEventListener("unload", function() {
+    aWindow.removeEventListener("unload", arguments.callee, false);
+    deferred.resolve(aWindow);
+  }, false);
+  return deferred.promise;
+}
+
+// Start the compatibility update dialog, but use the mock XHR to respond with
+// a timeout
+add_task(function* amo_ping_timeout() {
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+  Services.prefs.clearUserPref(PREF_METADATA_LASTUPDATE);
+  let compatWindow = yield promise_open_compatibility_window([]);
+
+  let xhr = yield pXHRStarted.promise;
+  is(xhr.timeout, 30000, "XHR request should have 30 second timeout");
+  ok(xhr._handlers.has("timeout"), "Timeout handler set on XHR");
+  // call back the timeout handler
+  xhr._handlers.get("timeout")();
+
+  // Put the old XHR constructor back
+  ARContext.ServiceRequest = oldXHRConstructor;
+  // The window should close without further interaction
+  yield promise_window_close(compatWindow);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_newaddon.js b/toolkit/mozapps/webextensions/test/browser/browser_newaddon.js
new file mode 100644
index 000000000..d450828ba
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_newaddon.js
@@ -0,0 +1,232 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests the new add-on tab
+
+var gProvider;
+
+function loadPage(aURL, aCallback, aBackground = false) {
+  let tab = gBrowser.addTab();
+  if (!aBackground)
+    gBrowser.selectedTab = tab;
+  let browser = tab.linkedBrowser;
+  browser.loadURI(aURL);
+  browser.addEventListener("AddonDisplayed", function(event) {
+    browser.removeEventListener("AddonDisplayed", arguments.callee, false);
+
+    aCallback(tab);
+  });
+}
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "Test 1",
+    version: "5.3",
+    userDisabled: true,
+    seen: false,
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon2@tests.mozilla.org",
+    name: "Test 2",
+    version: "7.1",
+    creator: "Dave Townsend",
+    userDisabled: true,
+    seen: false
+  }]);
+
+  run_next_test();
+}
+
+function end_test() {
+  finish();
+}
+
+// Tests that ignoring a restartless add-on works
+add_test(function() {
+  loadPage("about:newaddon?id=addon1@tests.mozilla.org", function(aTab) {
+    var doc = aTab.linkedBrowser.contentDocument;
+    is(doc.getElementById("name").value, "Test 1 5.3", "Should say the right name");
+
+    is_element_hidden(doc.getElementById("author"), "Should be no author displayed");
+    is_element_hidden(doc.getElementById("location"), "Should be no location displayed");
+
+    is(doc.getElementById("buttonDeck").selectedPanel, doc.getElementById("continuePanel"),
+       "Should be showing the right buttons");
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(aAddon) {
+      ok(aAddon.seen, "Add-on should have been marked as seen");
+
+      EventUtils.synthesizeMouseAtCenter(doc.getElementById("continue-button"),
+                                         {}, aTab.linkedBrowser.contentWindow);
+
+      is(gBrowser.tabs.length, 1, "Page should have been closed");
+
+      ok(aAddon.userDisabled, "Add-on should not have been enabled");
+
+      ok(!aAddon.isActive, "Add-on should not be running");
+
+      aAddon.seen = false;
+      run_next_test();
+    });
+  });
+});
+
+// Tests that enabling a restartless add-on works
+add_test(function() {
+  loadPage("about:newaddon?id=addon1@tests.mozilla.org", function(aTab) {
+    var doc = aTab.linkedBrowser.contentDocument;
+    is(doc.getElementById("name").value, "Test 1 5.3", "Should say the right name");
+
+    is_element_hidden(doc.getElementById("author"), "Should be no author displayed");
+    is_element_hidden(doc.getElementById("location"), "Should be no location displayed");
+
+    is(doc.getElementById("buttonDeck").selectedPanel, doc.getElementById("continuePanel"),
+       "Should be showing the right buttons");
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(aAddon) {
+      ok(aAddon.seen, "Add-on should have been marked as seen");
+
+      EventUtils.synthesizeMouseAtCenter(doc.getElementById("allow"),
+                                         {}, aTab.linkedBrowser.contentWindow);
+
+      EventUtils.synthesizeMouseAtCenter(doc.getElementById("continue-button"),
+                                         {}, aTab.linkedBrowser.contentWindow);
+
+      is(gBrowser.tabs.length, 1, "Page should have been closed");
+
+      ok(!aAddon.userDisabled, "Add-on should now have been enabled");
+
+      ok(aAddon.isActive, "Add-on should now be running");
+
+      aAddon.userDisabled = true;
+      aAddon.seen = false;
+      run_next_test();
+    });
+  });
+});
+
+// Tests that ignoring a non-restartless add-on works
+add_test(function() {
+  loadPage("about:newaddon?id=addon2@tests.mozilla.org", function(aTab) {
+    var doc = aTab.linkedBrowser.contentDocument;
+    is(doc.getElementById("name").value, "Test 2 7.1", "Should say the right name");
+
+    is_element_visible(doc.getElementById("author"), "Should be an author displayed");
+    is(doc.getElementById("author").value, "By Dave Townsend", "Should have the right author");
+    is_element_hidden(doc.getElementById("location"), "Should be no location displayed");
+
+    is(doc.getElementById("buttonDeck").selectedPanel, doc.getElementById("continuePanel"),
+       "Should be showing the right buttons");
+
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(aAddon) {
+      ok(aAddon.seen, "Add-on should have been marked as seen");
+
+      EventUtils.synthesizeMouseAtCenter(doc.getElementById("continue-button"),
+                                         {}, aTab.linkedBrowser.contentWindow);
+
+      is(gBrowser.tabs.length, 1, "Page should have been closed");
+
+      ok(aAddon.userDisabled, "Add-on should not have been enabled");
+
+      ok(!aAddon.isActive, "Add-on should not be running");
+
+      aAddon.seen = false;
+      run_next_test();
+    });
+  });
+});
+
+// Tests that enabling a non-restartless add-on works
+add_test(function() {
+  loadPage("about:newaddon?id=addon2@tests.mozilla.org", function(aTab) {
+    var doc = aTab.linkedBrowser.contentDocument;
+    is(doc.getElementById("name").value, "Test 2 7.1", "Should say the right name");
+
+    is_element_visible(doc.getElementById("author"), "Should be an author displayed");
+    is(doc.getElementById("author").value, "By Dave Townsend", "Should have the right author");
+    is_element_hidden(doc.getElementById("location"), "Should be no location displayed");
+
+    is(doc.getElementById("buttonDeck").selectedPanel, doc.getElementById("continuePanel"),
+       "Should be showing the right buttons");
+
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(aAddon) {
+      ok(aAddon.seen, "Add-on should have been marked as seen");
+
+      EventUtils.synthesizeMouseAtCenter(doc.getElementById("allow"),
+                                         {}, aTab.linkedBrowser.contentWindow);
+
+      EventUtils.synthesizeMouseAtCenter(doc.getElementById("continue-button"),
+                                         {}, aTab.linkedBrowser.contentWindow);
+
+      is(doc.getElementById("buttonDeck").selectedPanel, doc.getElementById("restartPanel"),
+         "Should be showing the right buttons");
+
+      ok(!aAddon.userDisabled, "Add-on should now have been enabled");
+
+      ok(!aAddon.isActive, "Add-on should not be running");
+
+      ok(doc.getElementById("allow").disabled, "Should have disabled checkbox");
+
+      EventUtils.synthesizeMouseAtCenter(doc.getElementById("cancel-button"),
+                                         {}, aTab.linkedBrowser.contentWindow);
+
+      is(doc.getElementById("buttonDeck").selectedPanel, doc.getElementById("continuePanel"),
+         "Should be showing the right buttons");
+
+      ok(!doc.getElementById("allow").disabled, "Should have enabled checkbox");
+
+      ok(aAddon.userDisabled, "Add-on should not have been enabled");
+
+      ok(!aAddon.isActive, "Add-on should not be running");
+
+      EventUtils.synthesizeMouseAtCenter(doc.getElementById("allow"),
+                                         {}, aTab.linkedBrowser.contentWindow);
+
+      EventUtils.synthesizeMouseAtCenter(doc.getElementById("continue-button"),
+                                         {}, aTab.linkedBrowser.contentWindow);
+
+      ok(aAddon.userDisabled, "Add-on should not have been enabled");
+
+      ok(!aAddon.isActive, "Add-on should not be running");
+
+      is(gBrowser.tabs.length, 1, "Page should have been closed");
+
+      aAddon.seen = false;
+      run_next_test();
+    });
+  });
+});
+
+// Tests that opening the page in the background doesn't mark as seen
+add_test(function() {
+  loadPage("about:newaddon?id=addon1@tests.mozilla.org", function(aTab) {
+    var doc = aTab.linkedBrowser.contentDocument;
+    is(doc.getElementById("name").value, "Test 1 5.3", "Should say the right name");
+
+    is_element_hidden(doc.getElementById("author"), "Should be no author displayed");
+    is_element_hidden(doc.getElementById("location"), "Should be no location displayed");
+
+    is(doc.getElementById("buttonDeck").selectedPanel, doc.getElementById("continuePanel"),
+       "Should be showing the right buttons");
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(aAddon) {
+      ok(!aAddon.seen, "Add-on should not have been marked as seen.");
+
+      gBrowser.selectedTab = aTab;
+
+      waitForFocus(function() {
+        ok(aAddon.seen, "Add-on should have been marked as seen after focusing the tab.");
+
+        gBrowser.removeTab(aTab);
+
+        run_next_test();
+      }, aTab.linkedBrowser.contentWindow);
+    });
+  }, true);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_openDialog.js b/toolkit/mozapps/webextensions/test/browser/browser_openDialog.js
new file mode 100644
index 000000000..f95365a4c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_openDialog.js
@@ -0,0 +1,173 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests the dialog open by the Options button for addons that provide a
+// custom chrome-like protocol for optionsURL.
+
+var CustomChromeProtocol = {
+  scheme: "khrome",
+  defaultPort: -1,
+  protocolFlags: Ci.nsIProtocolHandler.URI_DANGEROUS_TO_LOAD |
+                 Ci.nsIProtocolHandler.URI_IS_LOCAL_RESOURCE |
+                 Ci.nsIProtocolHandler.URI_NORELATIVE |
+                 Ci.nsIProtocolHandler.URI_NOAUTH,
+
+  newURI: function CCP_newURI(aSpec, aOriginCharset, aBaseUri) {
+    let uri = Cc["@mozilla.org/network/simple-uri;1"].
+              createInstance(Ci.nsIURI);
+    uri.spec = aSpec;
+    return uri;
+  },
+
+  newChannel2: function CCP_newChannel2(aURI, aLoadInfo) {
+    let url = Services.io.newURI("chrome:" + aURI.path, null, null);
+    let ch = Services.io.newChannelFromURIWithLoadInfo(url, aLoadInfo);
+    ch.originalURI = aURI;
+    return ch;
+  },
+
+  newChannel: function CCP_newChannel(aURI) {
+    return this.newChannel2(aURI, null);
+  },
+
+  allowPort: function CCP_allowPort(aPort, aScheme) {
+    return false;
+  },
+
+  QueryInterface: XPCOMUtils.generateQI([
+    Ci.nsIProtocolHandler
+  ]),
+
+  classID: Components.ID("{399cb2d1-05dd-4363-896f-63b78e008cf8}"),
+
+  factory: {
+    registrar: Components.manager.QueryInterface(Ci.nsIComponentRegistrar),
+
+    register: function CCP_register() {
+      this.registrar.registerFactory(
+        CustomChromeProtocol.classID,
+        "CustomChromeProtocol",
+        "@mozilla.org/network/protocol;1?name=khrome",
+        this
+      );
+    },
+
+    unregister: function CCP_register() {
+      this.registrar.unregisterFactory(CustomChromeProtocol.classID, this);
+    },
+
+    // nsIFactory
+    createInstance: function BNPH_createInstance(aOuter, aIID) {
+      if (aOuter) {
+        throw Components.Exception("Class does not allow aggregation",
+                                   Components.results.NS_ERROR_NO_AGGREGATION);
+      }
+      return CustomChromeProtocol.QueryInterface(aIID);
+    },
+
+    lockFactory: function BNPH_lockFactory(aLock) {
+      throw Components.Exception("Function lockFactory is not implemented",
+                                 Components.results.NS_ERROR_NOT_IMPLEMENTED);
+    },
+
+    QueryInterface: XPCOMUtils.generateQI([
+      Ci.nsIFactory
+    ])
+  }
+}
+
+function test() {
+  waitForExplicitFinish();
+  requestLongerTimeout(2);
+
+  info("Registering custom chrome-like protocol.");
+  CustomChromeProtocol.factory.register();
+  registerCleanupFunction(() => CustomChromeProtocol.factory.unregister());
+
+  const ADDONS_LIST = [
+    { id: "test1@tests.mozilla.org",
+      name: "Test add-on 1",
+      optionsURL: CHROMEROOT + "addon_prefs.xul" },
+    { id: "test2@tests.mozilla.org",
+      name: "Test add-on 2",
+      optionsURL: (CHROMEROOT + "addon_prefs.xul").replace("chrome:", "khrome:") },
+  ];
+
+  var gProvider = new MockProvider();
+  gProvider.createAddons(ADDONS_LIST);
+
+  open_manager("addons://list/extension", function(aManager) {
+    let addonList = aManager.document.getElementById("addon-list");
+    let currentAddon;
+    let instantApply = Services.prefs.getBoolPref("browser.preferences.instantApply");
+
+    function getAddonByName(aName) {
+      for (let addonItem of addonList.childNodes) {
+        if (addonItem.hasAttribute("name") &&
+            addonItem.getAttribute("name") == aName)
+          return addonItem;
+      }
+      return null;
+    }
+
+    function observer(aSubject, aTopic, aData) {
+      switch (aTopic) {
+        case "domwindowclosed":
+          // Give the preference window a chance to finish closing before
+          // closing the add-ons manager.
+          waitForFocus(function () {
+            test_next_addon();
+          });
+          break;
+        case "domwindowopened":
+          let win = aSubject.QueryInterface(Ci.nsIDOMEventTarget);
+          waitForFocus(function () {
+            // If the openDialog privileges are wrong a new browser window
+            // will open, let the test proceed (and fail) rather than timeout.
+            if (win.location != currentAddon.optionsURL &&
+                win.location != "chrome://browser/content/browser.xul")
+              return;
+
+            is(win.location, currentAddon.optionsURL,
+               "The correct addon pref window should have opened");
+
+            let chromeFlags = win.QueryInterface(Ci.nsIInterfaceRequestor).
+                                  getInterface(Ci.nsIWebNavigation).
+                                  QueryInterface(Ci.nsIDocShellTreeItem).treeOwner.
+                                  QueryInterface(Ci.nsIInterfaceRequestor).
+                                  getInterface(Ci.nsIXULWindow).chromeFlags;
+            ok(chromeFlags & Ci.nsIWebBrowserChrome.CHROME_OPENAS_CHROME &&
+               (instantApply || chromeFlags & Ci.nsIWebBrowserChrome.CHROME_OPENAS_DIALOG),
+               "Window was open as a chrome dialog.");
+
+            win.close();
+          }, win);
+          break;
+      }
+    }
+
+    function test_next_addon() {
+      currentAddon = ADDONS_LIST.shift();
+      if (!currentAddon) {
+        Services.ww.unregisterNotification(observer);
+        close_manager(aManager, finish);
+        return;
+      }
+
+      info("Testing " + currentAddon.name);
+      let addonItem = getAddonByName(currentAddon.name, addonList);
+      let optionsBtn =
+        aManager.document.getAnonymousElementByAttribute(addonItem, "anonid",
+                                                         "preferences-btn");
+      is(optionsBtn.hidden, false, "Prefs button should be visible.")
+
+      addonList.ensureElementIsVisible(addonItem);
+      EventUtils.synthesizeMouseAtCenter(optionsBtn, { }, aManager);
+    }
+
+    Services.ww.registerNotification(observer);
+    test_next_addon();
+  });
+
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_plugin_enabled_state_locked.js b/toolkit/mozapps/webextensions/test/browser/browser_plugin_enabled_state_locked.js
new file mode 100644
index 000000000..a9c7be4bc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_plugin_enabled_state_locked.js
@@ -0,0 +1,124 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that state menu is displayed correctly (enabled or disabled) in the add-on manager
+// when the preference is unlocked / locked
+var {classes: Cc, interfaces: Ci} = Components;
+const gIsWindows = ("@mozilla.org/windows-registry-key;1" in Cc);
+const gIsOSX = ("nsILocalFileMac" in Ci);
+const gIsLinux = ("@mozilla.org/gnome-gconf-service;1" in Cc) ||
+  ("@mozilla.org/gio-service;1" in Cc);
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gPluginElement;
+
+function getTestPluginPref() {
+  let prefix = "plugin.state.";
+  if (gIsWindows)
+    return `${prefix}nptest`;
+  if (gIsLinux)
+    return `${prefix}libnptest`;
+  return `${prefix}test`;
+}
+
+registerCleanupFunction(() => {
+  Services.prefs.unlockPref(getTestPluginPref());
+  Services.prefs.clearUserPref(getTestPluginPref());
+});
+
+function getPlugins() {
+  return new Promise(resolve => {
+    AddonManager.getAddonsByTypes(["plugin"], plugins => resolve(plugins));
+  });
+}
+
+function getTestPlugin(aPlugins) {
+  let testPluginId;
+
+  for (let plugin of aPlugins) {
+    if (plugin.name == "Test Plug-in") {
+      testPluginId = plugin.id;
+      break;
+    }
+  }
+
+  Assert.ok(testPluginId, "Test Plug-in should exist");
+
+  let pluginElement = get_addon_element(gManagerWindow, testPluginId);
+  pluginElement.parentNode.ensureElementIsVisible(pluginElement);
+
+  return pluginElement;
+}
+
+function checkStateMenu(locked) {
+  Assert.equal(Services.prefs.prefIsLocked(getTestPluginPref()), locked,
+    "Preference lock state should be correct.");
+  let menuList = gManagerWindow.document.getAnonymousElementByAttribute(gPluginElement, "anonid", "state-menulist");
+  //  State menu should always have a selected item which must be visible
+  let selectedMenuItem = menuList.querySelector(".addon-control[selected=\"true\"]");
+
+  is_element_visible(menuList, "State menu should be visible.");
+  Assert.equal(menuList.disabled, locked,
+    "State menu should" + (locked === true ? "" : " not") + " be disabled.");
+
+  is_element_visible(selectedMenuItem, "State menu's selected item should be visible.");
+}
+
+function checkStateMenuDetail(locked) {
+  Assert.equal(Services.prefs.prefIsLocked(getTestPluginPref()), locked,
+    "Preference should be " + (locked === true ? "" : "un") + "locked.");
+
+  // open details menu
+  let details = gManagerWindow.document.getAnonymousElementByAttribute(gPluginElement, "anonid", "details-btn");
+  is_element_visible(details, "Details link should be visible.");
+  EventUtils.synthesizeMouseAtCenter(details, {}, gManagerWindow);
+
+  return new Promise(resolve => {
+    wait_for_view_load(gManagerWindow, function() {
+      let menuList = gManagerWindow.document.getElementById("detail-state-menulist");
+      is_element_visible(menuList, "Details state menu should be visible.");
+      Assert.equal(menuList.disabled, locked,
+        "Details state menu enabled state should be correct.");
+      resolve();
+    });
+  });
+}
+
+add_task(function* initializeState() {
+  Services.prefs.setIntPref(getTestPluginPref(), Ci.nsIPluginTag.STATE_ENABLED);
+  Services.prefs.unlockPref(getTestPluginPref());
+  gManagerWindow = yield open_manager();
+  gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+  yield gCategoryUtilities.openType("plugin");
+
+  let plugins = yield getPlugins();
+  gPluginElement = getTestPlugin(plugins);
+});
+
+// Tests that plugin state menu is enabled if the preference is unlocked
+add_task(function* taskCheckStateMenuIsEnabled() {
+  checkStateMenu(false);
+  yield checkStateMenuDetail(false);
+});
+
+// Lock the preference and then reload the plugin category
+add_task(function* reinitializeState() {
+  // lock the preference
+  Services.prefs.lockPref(getTestPluginPref());
+  yield gCategoryUtilities.openType("plugin");
+  // Retrieve the test plugin element
+  let plugins = yield getPlugins();
+  gPluginElement = getTestPlugin(plugins);
+});
+
+// Tests that plugin state menu is disabled if the preference is locked
+add_task(function* taskCheckStateMenuIsDisabled() {
+  checkStateMenu(true);
+  yield checkStateMenuDetail(true);
+});
+
+add_task(function* testCleanup() {
+  yield close_manager(gManagerWindow);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_pluginprefs.js b/toolkit/mozapps/webextensions/test/browser/browser_pluginprefs.js
new file mode 100644
index 000000000..458e8e334
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_pluginprefs.js
@@ -0,0 +1,61 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests the detail view of plugins
+
+var gManagerWindow;
+
+function test() {
+  waitForExplicitFinish();
+
+  open_manager("addons://list/plugin", function(aWindow) {
+    gManagerWindow = aWindow;
+
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+add_test(function() {
+  AddonManager.getAddonsByTypes(["plugin"], function(plugins) {
+    let testPluginId;
+    for (let plugin of plugins) {
+      if (plugin.name == "Test Plug-in") {
+        testPluginId = plugin.id;
+        break;
+      }
+    }
+    ok(testPluginId, "Test Plug-in should exist")
+
+    AddonManager.getAddonByID(testPluginId, function(testPlugin) {
+      let pluginEl = get_addon_element(gManagerWindow, testPluginId);
+      is(pluginEl.mAddon.optionsType, AddonManager.OPTIONS_TYPE_INLINE_INFO, "Options should be inline info type");
+      pluginEl.parentNode.ensureElementIsVisible(pluginEl);
+
+      let button = gManagerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "preferences-btn");
+      is_element_hidden(button, "Preferences button should be hidden");
+
+      button = gManagerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "details-btn");
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+      wait_for_view_load(gManagerWindow, function() {
+        let pluginLibraries = gManagerWindow.document.getElementById("pluginLibraries");
+        ok(pluginLibraries, "Plugin file name row should be displayed");
+        // the file name depends on the platform
+        ok(pluginLibraries.textContent, testPlugin.pluginLibraries, "Plugin file name should be displayed");
+
+        let pluginMimeTypes = gManagerWindow.document.getElementById("pluginMimeTypes");
+        ok(pluginMimeTypes, "Plugin mime type row should be displayed");
+        ok(pluginMimeTypes.textContent, "application/x-test (tst)", "Plugin mime type should be displayed");
+
+        run_next_test();
+      });
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_purchase.js b/toolkit/mozapps/webextensions/test/browser/browser_purchase.js
new file mode 100644
index 000000000..a815d10d5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_purchase.js
@@ -0,0 +1,197 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that marketplace results show up in searches, are sorted right and
+// attempting to buy links through to the right webpage
+
+const PREF_GETADDONS_GETSEARCHRESULTS = "extensions.getAddons.search.url";
+const SEARCH_URL = TESTROOT + "browser_purchase.xml";
+
+var gManagerWindow;
+
+function test() {
+  // Turn on searching for this test
+  Services.prefs.setIntPref(PREF_SEARCH_MAXRESULTS, 15);
+  Services.prefs.setCharPref(PREF_GETADDONS_GETSEARCHRESULTS, SEARCH_URL);
+
+  waitForExplicitFinish();
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+
+    waitForFocus(function() {
+      var searchBox = gManagerWindow.document.getElementById("header-search");
+      searchBox.value = "foo";
+
+      EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+      EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+      wait_for_view_load(gManagerWindow, function() {
+        var remoteFilter = gManagerWindow.document.getElementById("search-filter-remote");
+        EventUtils.synthesizeMouseAtCenter(remoteFilter, { }, gManagerWindow);
+
+        run_next_test();
+      });
+    }, aWindow);
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    // Will have created an install so cancel it
+    AddonManager.getAllInstalls(function(aInstalls) {
+      is(aInstalls.length, 1, "Should have been one install created");
+      aInstalls[0].cancel();
+
+      finish();
+    });
+  });
+}
+
+function get_node(parent, anonid) {
+  return parent.ownerDocument.getAnonymousElementByAttribute(parent, "anonid", anonid);
+}
+
+function get_install_btn(parent) {
+  var installStatus = get_node(parent, "install-status");
+  return get_node(installStatus, "install-remote-btn");
+}
+
+function get_purchase_btn(parent) {
+  var installStatus = get_node(parent, "install-status");
+  return get_node(installStatus, "purchase-remote-btn");
+}
+
+// Tests that the expected results appeared
+add_test(function() {
+  var list = gManagerWindow.document.getElementById("search-list");
+  var items = Array.filter(list.childNodes, function(e) {
+    return e.tagName == "richlistitem";
+  });
+
+  is(items.length, 5, "Should be 5 results");
+
+  is(get_node(items[0], "name").value, "Ludicrously Expensive Add-on", "Add-on 0 should be in expected position");
+  is_element_hidden(get_install_btn(items[0]), "Add-on 0 install button should be hidden");
+  is_element_visible(get_purchase_btn(items[0]), "Add-on 0 purchase button should be visible");
+  is(get_purchase_btn(items[0]).label, "Purchase for $101\u2026", "Add-on 0 should have the right price");
+
+  is(get_node(items[1], "name").value, "Cheap Add-on", "Add-on 1 should be in expected position");
+  is_element_hidden(get_install_btn(items[1]), "Add-on 1 install button should be hidden");
+  is_element_visible(get_purchase_btn(items[1]), "Add-on 1 purchase button should be visible");
+  is(get_purchase_btn(items[1]).label, "Purchase for $0.99\u2026", "Add-on 2 should have the right price");
+
+  is(get_node(items[2], "name").value, "Reasonable Add-on", "Add-on 2 should be in expected position");
+  is_element_hidden(get_install_btn(items[2]), "Add-on 2 install button should be hidden");
+  is_element_visible(get_purchase_btn(items[2]), "Add-on 2 purchase button should be visible");
+  is(get_purchase_btn(items[2]).label, "Purchase for $1\u2026", "Add-on 3 should have the right price");
+
+  is(get_node(items[3], "name").value, "Free Add-on", "Add-on 3 should be in expected position");
+  is_element_visible(get_install_btn(items[3]), "Add-on 3 install button should be visible");
+  is_element_hidden(get_purchase_btn(items[3]), "Add-on 3 purchase button should be hidden");
+
+  is(get_node(items[4], "name").value, "More Expensive Add-on", "Add-on 4 should be in expected position");
+  is_element_hidden(get_install_btn(items[4]), "Add-on 4 install button should be hidden");
+  is_element_visible(get_purchase_btn(items[4]), "Add-on 4 purchase button should be visible");
+  is(get_purchase_btn(items[4]).label, "Purchase for $1.01\u2026", "Add-on 4 should have the right price");
+
+  run_next_test();
+});
+
+// Tests that sorting by price works
+add_test(function() {
+  var list = gManagerWindow.document.getElementById("search-list");
+
+  var sorters = gManagerWindow.document.getElementById("search-sorters");
+  var priceSorter = get_node(sorters, "price-btn");
+  info("Changing sort order");
+  EventUtils.synthesizeMouseAtCenter(priceSorter, { }, gManagerWindow);
+
+  var items = Array.filter(list.childNodes, function(e) {
+    return e.tagName == "richlistitem";
+  });
+
+  is(get_node(items[0], "name").value, "Free Add-on", "Add-on 0 should be in expected position");
+  is(get_node(items[1], "name").value, "Cheap Add-on", "Add-on 1 should be in expected position");
+  is(get_node(items[2], "name").value, "Reasonable Add-on", "Add-on 2 should be in expected position");
+  is(get_node(items[3], "name").value, "More Expensive Add-on", "Add-on 3 should be in expected position");
+  is(get_node(items[4], "name").value, "Ludicrously Expensive Add-on", "Add-on 4 should be in expected position");
+
+  info("Changing sort order");
+  EventUtils.synthesizeMouseAtCenter(priceSorter, { }, gManagerWindow);
+
+  items = Array.filter(list.childNodes, function(e) {
+    return e.tagName == "richlistitem";
+  });
+
+  is(get_node(items[0], "name").value, "Ludicrously Expensive Add-on", "Add-on 0 should be in expected position");
+  is(get_node(items[1], "name").value, "More Expensive Add-on", "Add-on 1 should be in expected position");
+  is(get_node(items[2], "name").value, "Reasonable Add-on", "Add-on 2 should be in expected position");
+  is(get_node(items[3], "name").value, "Cheap Add-on", "Add-on 3 should be in expected position");
+  is(get_node(items[4], "name").value, "Free Add-on", "Add-on 4 should be in expected position");
+
+  run_next_test();
+});
+
+// Tests that clicking the buy button works from the list
+add_test(function() {
+  gBrowser.tabContainer.addEventListener("TabOpen", function listener(event) {
+    gBrowser.tabContainer.removeEventListener("TabOpen", listener, true);
+    function wantLoad(url) {
+      return url != "about:blank";
+    }
+    BrowserTestUtils.browserLoaded(event.target.linkedBrowser, false, wantLoad).then(() => {
+      is(gBrowser.currentURI.spec, TESTROOT + "releaseNotes.xhtml?addon5", "Should have loaded the right page");
+
+      gBrowser.removeCurrentTab();
+
+      if (gUseInContentUI) {
+        is(gBrowser.currentURI.spec, "about:addons", "Should be back to the add-ons manager");
+        run_next_test();
+      }
+      else {
+        waitForFocus(run_next_test, gManagerWindow);
+      }
+    });
+  }, true);
+
+  var list = gManagerWindow.document.getElementById("search-list");
+  EventUtils.synthesizeMouseAtCenter(get_purchase_btn(list.firstChild), { }, gManagerWindow);
+});
+
+// Tests that clicking the buy button from the details view works
+add_test(function() {
+  gBrowser.tabContainer.addEventListener("TabOpen", function listener(event) {
+    gBrowser.tabContainer.removeEventListener("TabOpen", listener, true);
+    function wantLoad(url) {
+      return url != "about:blank";
+    }
+    BrowserTestUtils.browserLoaded(event.target.linkedBrowser, false, wantLoad).then(() => {
+      is(gBrowser.currentURI.spec, TESTROOT + "releaseNotes.xhtml?addon4", "Should have loaded the right page");
+
+      gBrowser.removeCurrentTab();
+
+      if (gUseInContentUI) {
+        is(gBrowser.currentURI.spec, "about:addons", "Should be back to the add-ons manager");
+        run_next_test();
+      }
+      else {
+        waitForFocus(run_next_test, gManagerWindow);
+      }
+    });
+  }, true);
+
+  var list = gManagerWindow.document.getElementById("search-list");
+  var item = list.firstChild.nextSibling;
+  list.ensureElementIsVisible(item);
+  EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
+  EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    var btn = gManagerWindow.document.getElementById("detail-purchase-btn");
+    is_element_visible(btn, "Purchase button should be visible");
+
+    EventUtils.synthesizeMouseAtCenter(btn, { }, gManagerWindow);
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_purchase.xml b/toolkit/mozapps/webextensions/test/browser/browser_purchase.xml
new file mode 100644
index 000000000..9d4b18880
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_purchase.xml
@@ -0,0 +1,180 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="100">
+  <addon>
+    <name>Ludicrously Expensive Add-on</name>
+    <type id='1'>Extension</type>
+    <guid>addon5@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test summary</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <all_compatible_os>
+      <os>ALL</os>
+    </all_compatible_os>
+    <payment_data>
+      <link>http://example.com/browser/toolkit/mozapps/extensions/test/browser/releaseNotes.xhtml?addon5</link>
+      <amount amount="101">$101</amount>
+    </payment_data>
+  </addon>
+  <addon>
+    <name>Cheap Add-on</name>
+    <type id='1'>Extension</type>
+    <guid>addon2@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test summary</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <all_compatible_os>
+      <os>ALL</os>
+    </all_compatible_os>
+    <payment_data>
+      <link>http://example.com/browser/toolkit/mozapps/extensions/test/browser/releaseNotes.xhtml?addon2</link>
+      <amount amount="0.99">$0.99</amount>
+    </payment_data>
+  </addon>
+  <addon>
+    <name>Reasonable Add-on</name>
+    <type id='1'>Extension</type>
+    <guid>addon3@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test summary</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <all_compatible_os>
+      <os>ALL</os>
+    </all_compatible_os>
+    <payment_data>
+      <link>http://example.com/browser/toolkit/mozapps/extensions/test/browser/releaseNotes.xhtml?addon3</link>
+      <amount amount="1">$1</amount>
+    </payment_data>
+  </addon>
+  <addon>
+    <name>Free Add-on</name>
+    <type id='1'>Extension</type>
+    <guid>addon1@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test summary</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <all_compatible_os>
+      <os>ALL</os>
+    </all_compatible_os>
+    <install size="1">http://example.com/addon1.xpi</install>
+  </addon>
+  <addon>
+    <name>More Expensive Add-on</name>
+    <type id='1'>Extension</type>
+    <guid>addon4@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test summary</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <all_compatible_os>
+      <os>ALL</os>
+    </all_compatible_os>
+    <payment_data>
+      <link>http://example.com/browser/toolkit/mozapps/extensions/test/browser/releaseNotes.xhtml?addon4</link>
+      <amount amount="1.01">$1.01</amount>
+    </payment_data>
+  </addon>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_recentupdates.js b/toolkit/mozapps/webextensions/test/browser/browser_recentupdates.js
new file mode 100644
index 000000000..02007dbbf
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_recentupdates.js
@@ -0,0 +1,125 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests the recent updates pane
+
+var gProvider;
+var gManagerWindow;
+var gCategoryUtilities;
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "updated 6 hours ago",
+    version: "1.0",
+    updateDate: new Date(Date.now() - (1000 * 60 * 60 * 6)),
+    releaseNotesURI: Services.io.newURI(TESTROOT + "releaseNotes.xhtml", null, null)
+  }, {
+    id: "addon2@tests.mozilla.org",
+    name: "updated 5 seconds ago",
+    version: "1.0",
+    updateDate: new Date(Date.now() - (1000 * 5))
+  }, {
+    id: "addon3@tests.mozilla.org",
+    name: "updated 1 month ago",
+    version: "1.0",
+    updateDate: new Date(Date.now() - (1000 * 60 * 60 * 25 * 30))
+  }]);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+
+add_test(function() {
+  info("Checking menuitem for Recent Updates opens that pane");
+  var recentCat = gManagerWindow.gCategories.get("addons://updates/recent");
+  is(gCategoryUtilities.isVisible(recentCat), false, "Recent Updates category should initially be hidden");
+
+  var utilsBtn = gManagerWindow.document.getElementById("header-utils-btn");
+  utilsBtn.addEventListener("popupshown", function() {
+    utilsBtn.removeEventListener("popupshown", arguments.callee, false);
+    wait_for_view_load(gManagerWindow, function() {
+      is(gCategoryUtilities.isVisible(recentCat), true, "Recent Updates category should now be visible");
+      is(gManagerWindow.document.getElementById("categories").selectedItem.value, "addons://updates/recent", "Recent Updates category should now be selected");
+      is(gManagerWindow.gViewController.currentViewId, "addons://updates/recent", "Recent Updates view should be the current view");
+      run_next_test();
+    }, true);
+    var menuitem = gManagerWindow.document.getElementById("utils-viewUpdates");
+    EventUtils.synthesizeMouse(menuitem, 2, 2, { }, gManagerWindow);
+  }, false);
+  EventUtils.synthesizeMouse(utilsBtn, 2, 2, { }, gManagerWindow);
+});
+
+
+add_test(function() {
+  var updatesList = gManagerWindow.document.getElementById("updates-list");
+  var sorters = gManagerWindow.document.getElementById("updates-sorters");
+  var dateSorter = gManagerWindow.document.getAnonymousElementByAttribute(sorters, "anonid", "date-btn");
+  var nameSorter = gManagerWindow.document.getAnonymousElementByAttribute(sorters, "anonid", "name-btn");
+
+  function check_order(expected) {
+    var items = updatesList.getElementsByTagName("richlistitem");
+    var possible = ["addon1@tests.mozilla.org", "addon2@tests.mozilla.org", "addon3@tests.mozilla.org"];
+    for (let item of items) {
+      let itemId = item.mAddon.id;
+      if (possible.indexOf(itemId) == -1)
+        continue; // skip over any other addons, such as shipped addons that would update on every build
+      isnot(expected.length, 0, "Should be expecting more items");
+      is(itemId, expected.shift(), "Should get expected item based on sort order");
+      if (itemId == "addon1@tests.mozilla.org")
+        is_element_visible(item._relNotesToggle, "Release notes toggle should be visible for addon with release notes");
+      else
+        is_element_hidden(item._relNotesToggle, "Release notes toggle should be hidden for addon with no release notes");
+    }
+  }
+
+  is_element_visible(dateSorter);
+  is_element_visible(nameSorter);
+
+  // sorted by date, descending
+  check_order(["addon2@tests.mozilla.org", "addon1@tests.mozilla.org"]);
+
+  // sorted by date, ascending
+  EventUtils.synthesizeMouseAtCenter(dateSorter, { }, gManagerWindow);
+  check_order(["addon1@tests.mozilla.org", "addon2@tests.mozilla.org"]);
+
+  // sorted by name, ascending
+  EventUtils.synthesizeMouseAtCenter(nameSorter, { }, gManagerWindow);
+  check_order(["addon2@tests.mozilla.org", "addon1@tests.mozilla.org"]);
+
+  // sorted by name, descending
+  EventUtils.synthesizeMouseAtCenter(nameSorter, { }, gManagerWindow);
+  check_order(["addon1@tests.mozilla.org", "addon2@tests.mozilla.org"]);
+
+  run_next_test();
+});
+
+
+add_test(function() {
+  close_manager(gManagerWindow, function() {
+    open_manager(null, function(aWindow) {
+      gManagerWindow = aWindow;
+      gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+      var recentCat = gManagerWindow.gCategories.get("addons://updates/recent");
+      is(gCategoryUtilities.isVisible(recentCat), true, "Recent Updates category should still be visible");
+
+      run_next_test();
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_searching.js b/toolkit/mozapps/webextensions/test/browser/browser_searching.js
new file mode 100644
index 000000000..907d9b105
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_searching.js
@@ -0,0 +1,698 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that searching for add-ons works correctly
+
+const PREF_GETADDONS_GETSEARCHRESULTS = "extensions.getAddons.search.url";
+const SEARCH_URL = TESTROOT + "browser_searching.xml";
+const NO_MATCH_URL = TESTROOT + "browser_searching_empty.xml";
+
+const QUERY = "SEARCH";
+const NO_MATCH_QUERY = "NOMATCHQUERY";
+const REMOTE_TO_INSTALL = "remote1";
+const REMOTE_INSTALL_URL = TESTROOT + "addons/browser_searching.xpi";
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gProvider;
+var gServer;
+var gAddonInstalled = false;
+
+function test() {
+  requestLongerTimeout(2);
+  // Turn on searching for this test
+  Services.prefs.setIntPref(PREF_SEARCH_MAXRESULTS, 15);
+  Services.prefs.setBoolPref(PREF_STRICT_COMPAT, true);
+
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "PASS - f",
+    description: "Test description - SEARCH",
+    size: 3,
+    version: "1.0",
+    updateDate: new Date(2010, 4, 2, 0, 0, 1)
+  }, {
+    id: "fail-addon1@tests.mozilla.org",
+    name: "FAIL",
+    description: "Does not match query"
+  }, {
+    id: "addon2@tests.mozilla.org",
+    name: "PASS - c",
+    description: "Test description - reSEARCHing SEARCH SEARCH",
+    size: 6,
+    version: "2.0",
+    updateDate: new Date(2010, 4, 2, 0, 0, 0)
+  }]);
+
+  var installs = gProvider.createInstalls([{
+    name: "PASS - a - SEARCHing",
+    sourceURI: "http://example.com/install1.xpi"
+  }, {
+    name: "PASS - g - reSEARCHing SEARCH",
+    sourceURI: "http://example.com/install2.xpi"
+  }, {
+    // Does not match query
+    name: "FAIL",
+    sourceURI: "http://example.com/fail-install1.xpi"
+  }]);
+
+  for (let install of installs )
+    install.install();
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    var installedAddon = get_addon_item(REMOTE_TO_INSTALL).mAddon;
+    installedAddon.uninstall();
+
+    AddonManager.getAllInstalls(function(aInstallsList) {
+      for (var install of aInstallsList) {
+        var sourceURI = install.sourceURI.spec;
+        if (sourceURI == REMOTE_INSTALL_URL ||
+            sourceURI.match(/^http:\/\/example\.com\/(.+)\.xpi$/) != null)
+          install.cancel();
+      }
+
+      finish();
+    });
+  });
+}
+
+function getAnonymousElementByAttribute(aElement, aName, aValue) {
+  return gManagerWindow.document.getAnonymousElementByAttribute(aElement,
+                                                                aName,
+                                                                aValue);
+}
+
+/*
+ * Checks whether or not the Add-ons Manager is currently searching
+ *
+ * @param  aExpectedSearching
+ *         The expected isSearching state
+ */
+function check_is_searching(aExpectedSearching) {
+  var loading = gManagerWindow.document.getElementById("search-loading");
+  is(!is_hidden(loading), aExpectedSearching,
+     "Search throbber should be showing iff currently searching");
+}
+
+/*
+ * Completes a search
+ *
+ * @param  aQuery
+ *         The query to search for
+ * @param  aFinishImmediately
+ *         Boolean representing whether or not the search is expected to
+ *         finish immediately
+ * @param  aCallback
+ *         The callback to call when the search is done
+ * @param  aCategoryType
+ *         The expected selected category after the search is done.
+ *         Optional and defaults to "search"
+ */
+function search(aQuery, aFinishImmediately, aCallback, aCategoryType) {
+  // Point search to the correct xml test file
+  var url = (aQuery == NO_MATCH_QUERY) ? NO_MATCH_URL : SEARCH_URL;
+  Services.prefs.setCharPref(PREF_GETADDONS_GETSEARCHRESULTS, url);
+
+  aCategoryType = aCategoryType ? aCategoryType : "search";
+
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  searchBox.value = aQuery;
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  var finishImmediately = true;
+  wait_for_view_load(gManagerWindow, function() {
+    is(gCategoryUtilities.selectedCategory, aCategoryType, "Expected category view should be selected");
+    is(gCategoryUtilities.isTypeVisible("search"), aCategoryType == "search",
+       "Search category should only be visible if it is the current view");
+    check_is_searching(false);
+    is(finishImmediately, aFinishImmediately, "Search should finish immediately only if expected");
+
+    aCallback();
+  });
+
+  finishImmediately = false
+  if (!aFinishImmediately)
+    check_is_searching(true);
+}
+
+/*
+ * Return results of a search
+ *
+ * @return Array of objects, each containing the name and item of a specific
+ *         result
+ */
+function get_actual_results() {
+  var list = gManagerWindow.document.getElementById("search-list");
+  var rows = list.getElementsByTagName("richlistitem");
+
+  var results = [];
+  for (var item of rows) {
+
+    // Only consider items that are currently showing
+    var style = gManagerWindow.document.defaultView.getComputedStyle(item, "");
+    if (style.display == "none" || style.visibility != "visible")
+      continue;
+
+    if (item.mInstall || item.isPending("install")) {
+      var sourceURI = item.mInstall.sourceURI.spec;
+      if (sourceURI == REMOTE_INSTALL_URL) {
+        results.push({name: REMOTE_TO_INSTALL, item: item});
+        continue;
+      }
+
+      let result = sourceURI.match(/^http:\/\/example\.com\/(.+)\.xpi$/);
+      if (result != null) {
+        is(item.mInstall.name.indexOf("PASS"), 0, "Install name should start with PASS");
+        results.push({name: result[1], item: item});
+        continue;
+      }
+    }
+    else if (item.mAddon) {
+      let result = item.mAddon.id.match(/^(.+)@tests\.mozilla\.org$/);
+      if (result != null) {
+        is(item.mAddon.name.indexOf("PASS"), 0, "Addon name should start with PASS");
+        results.push({name: result[1], item: item});
+        continue;
+      }
+    }
+    else {
+      ok(false, "Found an item in the list that was neither installing or installed");
+    }
+  }
+
+  return results;
+}
+
+/*
+ * Returns expected results when searching for QUERY with default ordering
+ *
+ * @param  aSortBy
+ *         How the results are sorted (e.g. "name")
+ * @param  aLocalExpected
+ *         Boolean representing if local results are expected
+ * @return A pair: [array of results with an expected order,
+ *                  array of results with unknown order]
+ */
+function get_expected_results(aSortBy, aLocalExpected) {
+  var expectedOrder = null, unknownOrder = null;
+  switch (aSortBy) {
+    case "relevancescore":
+      expectedOrder = [ "addon2", "remote1", "install2", "addon1",
+                        "install1", "remote2", "remote3", "remote4" ];
+      unknownOrder = [];
+      break;
+    case "name":
+      // Defaults to ascending order
+      expectedOrder = [ "install1", "remote1",  "addon2", "remote2",
+                        "remote3", "addon1", "install2", "remote4" ];
+      unknownOrder = [];
+      break;
+    case "dateUpdated":
+      expectedOrder = [ "addon1", "addon2" ];
+      // Updated date not available for installs and remote add-ons
+      unknownOrder = [ "install1", "install2", "remote1",
+                       "remote2", "remote3", "remote4" ];
+      break;
+    default:
+      ok(false, "Should recognize sortBy when checking the order of items");
+  }
+
+  // Only keep expected results
+  function filterResults(aId) {
+    // Include REMOTE_TO_INSTALL as a local add-on if it has been installed
+    if (gAddonInstalled && aId == REMOTE_TO_INSTALL)
+      return aLocalExpected;
+
+    if (aId.indexOf("addon") == 0 || aId.indexOf("install") == 0)
+      return aLocalExpected;
+    if (aId.indexOf("remote") == 0)
+      return !aLocalExpected;
+
+    return false;
+  }
+
+
+  return [expectedOrder.filter(filterResults),
+          unknownOrder.filter(filterResults)]
+}
+
+/*
+ * Check that the actual and expected results are the same
+ *
+ * @param  aQuery
+ *         The search query used
+ * @param  aSortBy
+ *         How the results are sorted (e.g. "name")
+ * @param  aReverseOrder
+ *         Boolean representing if the results are in reverse default order
+ * @param  aShowLocal
+ *         Boolean representing if local results are being shown
+ */
+function check_results(aQuery, aSortBy, aReverseOrder, aShowLocal) {
+
+  var xpinstall_enabled = true;
+  try {
+    xpinstall_enabled = Services.prefs.getBoolPref(PREF_XPI_ENABLED);
+  }
+  catch (e) {}
+
+  // When XPI Instalation is disabled, those buttons are hidden and unused
+  if (xpinstall_enabled) {
+    var localFilterSelected = gManagerWindow.document.getElementById("search-filter-local").selected;
+    var remoteFilterSelected = gManagerWindow.document.getElementById("search-filter-remote").selected;
+    is(localFilterSelected, aShowLocal, "Local filter should be selected if showing local items");
+    is(remoteFilterSelected, !aShowLocal, "Remote filter should be selected if showing remote items");
+  }
+
+  // Get expected order assuming default order
+  var expectedOrder = [], unknownOrder = [];
+  if (aQuery == QUERY)
+    [expectedOrder, unknownOrder] = get_expected_results(aSortBy, aShowLocal);
+
+  // Get actual order of results
+  var actualResults = get_actual_results();
+  var actualOrder = actualResults.map(result => result.name);
+
+  // Reverse array of actual results if supposed to be in reverse order.
+  // Reverse actualOrder instead of expectedOrder so can always check
+  // expectedOrder before unknownOrder
+  if (aReverseOrder)
+    actualOrder.reverse();
+
+  // Check actual vs. expected list of results
+  var totalExpectedResults = expectedOrder.length + unknownOrder.length;
+  is(actualOrder.length, totalExpectedResults, "Should get correct number of results");
+
+  // Check the "first" and "last" attributes are set correctly
+  for (let i = 0; i < actualResults.length; i++) {
+    if (i == 0) {
+      is(actualResults[0].item.hasAttribute("first"), true,
+         "First item should have 'first' attribute set");
+      is(actualResults[0].item.hasAttribute("last"), false,
+         "First item should not have 'last' attribute set");
+    } else if (i == (actualResults.length - 1)) {
+      is(actualResults[actualResults.length - 1].item.hasAttribute("first"), false,
+         "Last item should not have 'first' attribute set");
+      is(actualResults[actualResults.length - 1].item.hasAttribute("last"), true,
+         "Last item should have 'last' attribute set");
+    } else {
+      is(actualResults[i].item.hasAttribute("first"), false,
+         "Item " + i + " should not have 'first' attribute set");
+      is(actualResults[i].item.hasAttribute("last"), false,
+         "Item " + i + " should not have 'last' attribute set");
+    }
+  }
+
+  var i = 0;
+  for (; i < expectedOrder.length; i++)
+    is(actualOrder[i], expectedOrder[i], "Should have seen expected item");
+
+  // Items with data that is unknown can appear in any order among themselves,
+  // so just check that these items exist
+  for (; i < actualOrder.length; i++) {
+    var unknownOrderIndex = unknownOrder.indexOf(actualOrder[i]);
+    ok(unknownOrderIndex >= 0, "Should expect to see item with data that is unknown");
+    unknownOrder[unknownOrderIndex] = null;
+  }
+
+  // Check status of empty notice
+  var emptyNotice = gManagerWindow.document.getElementById("search-list-empty");
+  is(emptyNotice.hidden, totalExpectedResults > 0,
+     "Empty notice should be hidden only if expecting shown items");
+}
+
+/*
+ * Check results of a search with different filterings
+ *
+ * @param  aQuery
+ *         The search query used
+ * @param  aSortBy
+ *         How the results are sorted (e.g. "name")
+ * @param  aReverseOrder
+ *         Boolean representing if the results are in reverse default order
+ * @param  aLocalOnly
+ *         Boolean representing if the results are local only, can be undefined
+ */
+function check_filtered_results(aQuery, aSortBy, aReverseOrder, aLocalOnly) {
+  var localFilter = gManagerWindow.document.getElementById("search-filter-local");
+  var remoteFilter = gManagerWindow.document.getElementById("search-filter-remote");
+
+  var list = gManagerWindow.document.getElementById("search-list");
+  list.ensureElementIsVisible(localFilter);
+
+  // Check with showing local add-ons
+  EventUtils.synthesizeMouseAtCenter(localFilter, { }, gManagerWindow);
+  check_results(aQuery, aSortBy, aReverseOrder, true);
+
+  // Check with showing remote add-ons
+  aLocalOnly = aLocalOnly || false;
+  EventUtils.synthesizeMouseAtCenter(remoteFilter, { }, gManagerWindow);
+  check_results(aQuery, aSortBy, aReverseOrder, aLocalOnly);
+}
+
+/*
+ * Get item for a specific add-on by name
+ *
+ * @param  aName
+ *         The name of the add-on to search for
+ * @return Row of add-on if found, null otherwise
+ */
+function get_addon_item(aName) {
+  var id = aName + "@tests.mozilla.org";
+  var list = gManagerWindow.document.getElementById("search-list");
+  var rows = list.getElementsByTagName("richlistitem");
+  for (var row of rows) {
+    if (row.mAddon && row.mAddon.id == id)
+      return row;
+  }
+
+  return null;
+}
+
+/*
+ * Get item for a specific install by name
+ *
+ * @param  aName
+ *         The name of the install to search for
+ * @return Row of install if found, null otherwise
+ */
+function get_install_item(aName) {
+  var sourceURI = "http://example.com/" + aName + ".xpi";
+  var list = gManagerWindow.document.getElementById("search-list");
+  var rows = list.getElementsByTagName("richlistitem");
+  for (var row of rows) {
+    if (row.mInstall && row.mInstall.sourceURI.spec == sourceURI)
+      return row;
+  }
+
+  return null;
+}
+
+/*
+ * Gets the install button for a specific item
+ *
+ * @param  aItem
+ *         The item to get the install button for
+ * @return The install button for aItem
+ */
+function get_install_button(aItem) {
+  isnot(aItem, null, "Item should not be null when checking state of install button");
+  var installStatus = getAnonymousElementByAttribute(aItem, "anonid", "install-status");
+  return getAnonymousElementByAttribute(installStatus, "anonid", "install-remote-btn");
+}
+
+
+// Tests that searching for the empty string does nothing when not in the search view
+add_test(function() {
+  is(gCategoryUtilities.isTypeVisible("search"), false, "Search category should initially be hidden");
+
+  var selectedCategory = gCategoryUtilities.selectedCategory;
+  isnot(selectedCategory, "search", "Selected type should not initially be the search view");
+  search("", true, run_next_test, selectedCategory);
+});
+
+// Tests that the results from a query are sorted by relevancescore in descending order.
+// Also test that double clicking non-install items goes to the detail view, and that
+// only remote items have install buttons showing
+add_test(function() {
+  search(QUERY, false, function() {
+    check_filtered_results(QUERY, "relevancescore", false);
+
+    var list = gManagerWindow.document.getElementById("search-list");
+    var results = get_actual_results();
+    for (var result of results) {
+      var installBtn = get_install_button(result.item);
+      is(installBtn.hidden, result.name.indexOf("remote") != 0,
+         "Install button should only be showing for remote items");
+    }
+
+    var currentIndex = -1;
+    function run_next_double_click_test() {
+      currentIndex++;
+      if (currentIndex >= results.length) {
+        run_next_test();
+        return;
+      }
+
+      var result = results[currentIndex];
+      if (result.name.indexOf("install") == 0) {
+        run_next_double_click_test();
+        return;
+      }
+
+      var item = result.item;
+      list.ensureElementIsVisible(item);
+      EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
+      EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
+      wait_for_view_load(gManagerWindow, function() {
+        var name = gManagerWindow.document.getElementById("detail-name").textContent;
+        is(name, item.mAddon.name, "Name in detail view should be correct");
+        var version = gManagerWindow.document.getElementById("detail-version").value;
+        is(version, item.mAddon.version, "Version in detail view should be correct");
+
+        EventUtils.synthesizeMouseAtCenter(gManagerWindow.document.getElementById("category-search"),
+                                           { }, gManagerWindow);
+        wait_for_view_load(gManagerWindow, run_next_double_click_test);
+      });
+    }
+
+    run_next_double_click_test();
+  });
+});
+
+// Tests that the sorters and filters correctly manipulate the results
+add_test(function() {
+  var sorters = gManagerWindow.document.getElementById("search-sorters");
+  var originalHandler = sorters.handler;
+
+  var sorterNames = ["name", "dateUpdated"];
+  var buttonIds = ["name-btn", "date-btn"];
+  var currentIndex = 0;
+  var currentReversed = false;
+
+  function run_sort_test() {
+    if (currentIndex >= sorterNames.length) {
+      sorters.handler = originalHandler;
+      run_next_test();
+      return;
+    }
+
+    // Simulate clicking on a specific sorter
+    var buttonId = buttonIds[currentIndex];
+    var sorter = getAnonymousElementByAttribute(sorters, "anonid", buttonId);
+    is_element_visible(sorter);
+    EventUtils.synthesizeMouseAtCenter(sorter, { }, gManagerWindow);
+  }
+
+  sorters.handler = {
+    onSortChanged: function(aSortBy, aAscending) {
+      if (originalHandler && "onSortChanged" in originalHandler)
+        originalHandler.onSortChanged(aSortBy, aAscending);
+
+      check_filtered_results(QUERY, sorterNames[currentIndex], currentReversed);
+
+      if (currentReversed)
+        currentIndex++;
+      currentReversed = !currentReversed;
+
+      run_sort_test();
+    }
+  };
+
+  check_filtered_results(QUERY, "relevancescore", false);
+  run_sort_test();
+});
+
+// Tests that searching for the empty string does nothing when in search view
+add_test(function() {
+  search("", true, function() {
+    check_filtered_results(QUERY, "dateUpdated", true);
+    run_next_test();
+  });
+});
+
+// Tests that clicking a different category hides the search query
+add_test(function() {
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.isTypeVisible("search"), false, "Search category should be hidden");
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+    run_next_test();
+  });
+});
+
+// Tests that re-searching for query doesn't actually complete a new search,
+// and the last sort is still used
+add_test(function() {
+  search(QUERY, true, function() {
+    check_filtered_results(QUERY, "dateUpdated", true);
+    run_next_test();
+  });
+});
+
+// Tests that getting zero results works correctly
+add_test(function() {
+  search(NO_MATCH_QUERY, false, function() {
+    check_filtered_results(NO_MATCH_QUERY, "relevancescore", false);
+    run_next_test();
+  });
+});
+
+// Tests that installing a remote add-on works
+add_test(function() {
+  var installBtn = null;
+
+  var listener = {
+    onInstallEnded: function(aInstall, aAddon) {
+      // Don't immediately consider the installed add-on as local because
+      // if the user was filtering out local add-ons, the installed add-on
+      // would vanish. Only consider add-on as local on new searches.
+
+      aInstall.removeListener(this);
+
+      is(installBtn.hidden, true, "Install button should be hidden after install ended");
+      check_filtered_results(QUERY, "relevancescore", false);
+      run_next_test();
+    }
+  }
+
+  search(QUERY, false, function() {
+    var list = gManagerWindow.document.getElementById("search-list");
+    var remoteItem = get_addon_item(REMOTE_TO_INSTALL);
+    list.ensureElementIsVisible(remoteItem);
+
+    installBtn = get_install_button(remoteItem);
+    is(installBtn.hidden, false, "Install button should be showing before install");
+    remoteItem.mAddon.install.addListener(listener);
+    EventUtils.synthesizeMouseAtCenter(installBtn, { }, gManagerWindow);
+  });
+});
+
+// Tests that re-searching for query results in correct results
+add_test(function() {
+  // Select a different category
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.isTypeVisible("search"), false, "Search category should be hidden");
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+    var installBtn = get_install_button(get_addon_item(REMOTE_TO_INSTALL));
+    is(installBtn.hidden, true, "Install button should be hidden for installed item");
+
+    search(QUERY, true, function() {
+      check_filtered_results(QUERY, "relevancescore", false);
+      run_next_test();
+    });
+  });
+});
+
+// Tests that incompatible add-ons are shown with a warning if compatibility checking is disabled
+add_test(function() {
+  AddonManager.checkCompatibility = false;
+  search("incompatible", false, function() {
+    var item = get_addon_item("remote5");
+    is_element_visible(item, "Incompatible addon should be visible");
+    is(item.getAttribute("notification"), "warning", "Compatibility warning should be shown");
+
+    item = get_addon_item("remote6");
+    is(item, null, "Addon incompatible with the product should not be visible");
+
+    AddonManager.checkCompatibility = true;
+    run_next_test();
+  });
+});
+
+// Tests that compatible-by-default addons are shown if strict compatibility checking is disabled
+add_test(function() {
+  restart_manager(gManagerWindow, "addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    Services.prefs.setBoolPref(PREF_STRICT_COMPAT, false);
+    search("incompatible", false, function() {
+      var item = get_addon_item("remote5");
+      is_element_visible(item, "Incompatible addon should be visible");
+      isnot(item.getAttribute("notification"), "warning", "Compatibility warning should not be shown");
+
+      item = get_addon_item("remote6");
+      is(item, null, "Addon incompatible with the product should not be visible");
+
+      Services.prefs.setBoolPref(PREF_STRICT_COMPAT, true);
+      run_next_test();
+    });
+  });
+});
+
+
+// Tests that restarting the manager doesn't change search results
+add_test(function() {
+  restart_manager(gManagerWindow, null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    // We never restore to the search pane
+    is(gCategoryUtilities.selectedCategory, "discover", "View should have changed to discover");
+
+    // Installed add-on is considered local on new search
+    gAddonInstalled = true;
+
+    // Switch over to extensions list so we can do a new search
+    gCategoryUtilities.openType("extension", function() {
+      search(QUERY, false, function() {
+        check_filtered_results(QUERY, "relevancescore", false);
+
+        var installBtn = get_install_button(get_addon_item(REMOTE_TO_INSTALL));
+        is(installBtn.hidden, true, "Install button should be hidden for installed item");
+
+        run_next_test();
+      });
+    });
+  });
+});
+
+function bug_815120_test_search(aLocalOnly) {
+  restart_manager(gManagerWindow, "addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    // Installed add-on is considered local on new search
+    gAddonInstalled = true;
+
+    // The search buttons should be hidden in the LocalOnly setup
+    var localFilterButton = aWindow.document.getElementById("search-filter-local");
+    is(aLocalOnly, is_hidden(localFilterButton), "Local filter button visibility does not match, aLocalOnly = " + aLocalOnly);
+
+    var remoteFilterButton = aWindow.document.getElementById("search-filter-remote");
+    is(aLocalOnly, is_hidden(remoteFilterButton), "Remote filter button visibility does not match, aLocalOnly = " + aLocalOnly);
+
+    search(QUERY, false, function() {
+      check_filtered_results(QUERY, "relevancescore", false, aLocalOnly);
+      run_next_test();
+    });
+  });
+}
+
+// Tests for Bug 815120
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_XPI_ENABLED, false);
+  bug_815120_test_search(true);
+});
+
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_XPI_ENABLED, true);
+  bug_815120_test_search(false);
+});
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_searching.xml b/toolkit/mozapps/webextensions/test/browser/browser_searching.xml
new file mode 100644
index 000000000..a3537b269
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_searching.xml
@@ -0,0 +1,277 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="100">
+  <addon>
+    <name>FAIL</name>
+    <type id='1'>Extension</type>
+    <guid>addon1@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Addon already installed - SEARCH</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="1">http://example.com/addon1.xpi</install>
+  </addon>
+  <addon>
+    <name>FAIL</name>
+    <type id='9'>lightweight theme</type>
+    <guid>addon12345@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Addon with uninstallable type shouldn't be visible in search</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="1">http://example.com/addon1.xpi</install>
+  </addon>
+  <addon>
+    <name>FAIL</name>
+    <type id='1'>Extension</type>
+    <guid>install1@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Install already exists - SEARCH</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="1">http://example.com/install1.xpi</install>
+  </addon>
+  <addon>
+    <name>PASS - b</name>
+    <type id='1'>Extension</type>
+    <guid>remote1@tests.mozilla.org</guid>
+    <version>3.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test summary - SEARCH SEARCH</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="2">http://example.com/browser/toolkit/mozapps/extensions/test/browser/addons/browser_searching.xpi</install>
+  </addon>
+  <addon>
+    <name>PASS - d</name>
+    <type id='1'>Extension</type>
+    <guid>remote2@tests.mozilla.org</guid>
+    <version>4.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test summary - SEARCHing SEARCH</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="5">http://example.com/remote2.xpi</install>
+  </addon>
+  <addon>
+    <name>PASS - e</name>
+    <type id='1'>Extension</type>
+    <guid>remote3@tests.mozilla.org</guid>
+    <version>5.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test summary - Does not match query</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="1">http://example.com/remote3.xpi</install>
+  </addon>
+  <addon>
+    <name>PASS - h</name>
+    <type id='1'>Extension</type>
+    <guid>remote4@tests.mozilla.org</guid>
+    <version>6.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Test summary - SEARCHing SEARCH SEARCH</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="4">http://example.com/remote4.xpi</install>
+  </addon>
+  <addon>
+    <name>PASS - i</name>
+    <type id='1'>Extension</type>
+    <guid>remote5@tests.mozilla.org</guid>
+    <version>6.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Incompatible test</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>1</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="1">http://example.com/addon1.xpi</install>
+  </addon>
+  <addon>
+    <name>FAIL - j</name>
+    <type id='1'>Extension</type>
+    <guid>remote6@tests.mozilla.org</guid>
+    <version>6.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Incompatible test</summary>
+    <description>Test description</description>
+    <compatible_applications>
+      <application>
+        <name>Fake Product</name>
+        <appID>fakeproduct@mozilla.org</appID>
+        <min_version>0</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="1">http://example.com/addon1.xpi</install>
+  </addon>
+</searchresults>
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_searching_empty.xml b/toolkit/mozapps/webextensions/test/browser/browser_searching_empty.xml
new file mode 100644
index 000000000..24f6cb89f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_searching_empty.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="100" />
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_sorting.js b/toolkit/mozapps/webextensions/test/browser/browser_sorting.js
new file mode 100644
index 000000000..b57e7a6f7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_sorting.js
@@ -0,0 +1,372 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that sorting of add-ons works correctly
+// (this test uses the list view, even though it no longer has sort buttons - see bug 623207)
+
+var gManagerWindow;
+var gProvider;
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+  gProvider.createAddons([{
+    //  enabledInstalled group
+    //    * Enabled
+    //    * Incompatible but enabled because compatibility checking is off
+    //    * Waiting to be installed
+    //    * Waiting to be enabled
+    id: "test1@tests.mozilla.org",
+    name: "Test add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 2, 0, 0, 0),
+    size: 1,
+    pendingOperations: AddonManager.PENDING_NONE,
+  }, {
+    id: "test2@tests.mozilla.org",
+    name: "a first add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 1, 23, 59, 59),
+    size: 265,
+    pendingOperations: AddonManager.PENDING_UPGRADE,
+    isActive: true,
+    isCompatible: false,
+  }, {
+    id: "test3@tests.mozilla.org",
+    name: "\u010Cesk\u00FD slovn\u00EDk", // Český slovník
+    description: "foo",
+    updateDate: new Date(2010, 4, 2, 0, 0, 1),
+    size: 12,
+    pendingOperations: AddonManager.PENDING_INSTALL,
+    isActive: false,
+  }, {
+    id: "test4@tests.mozilla.org",
+    name: "canadian dictionary",
+    updateDate: new Date(1970, 0, 1, 0, 0, 0),
+    description: "foo",
+    isActive: true,
+  }, {
+    id: "test5@tests.mozilla.org",
+    name: "croatian dictionary",
+    description: "foo",
+    updateDate: new Date(2012, 12, 12, 0, 0, 0),
+    size: 5,
+    pendingOperations: AddonManager.PENDING_ENABLE,
+    isActive: false,
+  }, {
+    //  pendingDisable group
+    //    * Waiting to be disabled
+    id: "test6@tests.mozilla.org",
+    name: "orange Add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 2, 0, 0, 0),
+    size: 142,
+    isCompatible: false,
+    isActive: true,
+    pendingOperations: AddonManager.PENDING_DISABLE,
+  }, {
+    id: "test7@tests.mozilla.org",
+    name: "Blue Add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 1, 23, 59, 59),
+    size: 65,
+    isActive: true,
+    pendingOperations: AddonManager.PENDING_DISABLE,
+  }, {
+    id: "test8@tests.mozilla.org",
+    name: "Green Add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 3, 0, 0, 1),
+    size: 125,
+    pendingOperations: AddonManager.PENDING_DISABLE,
+  }, {
+    id: "test9@tests.mozilla.org",
+    name: "red Add-on",
+    updateDate: new Date(2011, 4, 1, 0, 0, 0),
+    description: "foo",
+    isCompatible: false,
+    pendingOperations: AddonManager.PENDING_DISABLE,
+  }, {
+    id: "test10@tests.mozilla.org",
+    name: "Purple Add-on",
+    description: "foo",
+    updateDate: new Date(2012, 12, 12, 0, 0, 0),
+    size: 56,
+    isCompatible: false,
+    pendingOperations: AddonManager.PENDING_DISABLE,
+  }, {
+    //  pendingUninstall group
+    //    * Waiting to be removed
+    id: "test11@tests.mozilla.org",
+    name: "amber Add-on",
+    description: "foo",
+    updateDate: new Date(1978, 4, 2, 0, 0, 0),
+    size: 142,
+    isActive: false,
+    appDisabled: true,
+    pendingOperations: AddonManager.PENDING_UNINSTALL,
+  }, {
+    id: "test12@tests.mozilla.org",
+    name: "Salmon Add-on - pending disable",
+    description: "foo",
+    updateDate: new Date(2054, 4, 1, 23, 59, 59),
+    size: 65,
+    isActive: true,
+    pendingOperations: AddonManager.PENDING_UNINSTALL,
+  }, {
+    id: "test13@tests.mozilla.org",
+    name: "rose Add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 2, 0, 0, 1),
+    size: 125,
+    isActive: false,
+    userDisabled: true,
+    pendingOperations: AddonManager.PENDING_UNINSTALL,
+  }, {
+    id: "test14@tests.mozilla.org",
+    name: "Violet Add-on",
+    updateDate: new Date(2010, 5, 1, 0, 0, 0),
+    description: "foo",
+    isActive: false,
+    appDisabled: true,
+    pendingOperations: AddonManager.PENDING_UNINSTALL,
+  }, {
+    id: "test15@tests.mozilla.org",
+    name: "white Add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 12, 0, 0, 0),
+    size: 56,
+    isActive: false,
+    userDisabled: true,
+    pendingOperations: AddonManager.PENDING_UNINSTALL,
+  }, {
+    //  disabledIncompatibleBlocked group
+    //    * Disabled
+    //    * Incompatible
+    //    * Blocklisted
+    id: "test16@tests.mozilla.org",
+    name: "grimsby Add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 1, 0, 0, 0),
+    size: 142,
+    isActive: false,
+    appDisabled: true,
+  }, {
+    id: "test17@tests.mozilla.org",
+    name: "beamsville Add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 8, 23, 59, 59),
+    size: 65,
+    isActive: false,
+    userDisabled: true,
+  }, {
+    id: "test18@tests.mozilla.org",
+    name: "smithville Add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 3, 0, 0, 1),
+    size: 125,
+    isActive: false,
+    userDisabled: true,
+    blocklistState: Ci.nsIBlocklistService.STATE_OUTDATED,
+  }, {
+    id: "test19@tests.mozilla.org",
+    name: "dunnville Add-on",
+    updateDate: new Date(2010, 4, 2, 0, 0, 0),
+    description: "foo",
+    isActive: false,
+    appDisabled: true,
+    isCompatible: false,
+    blocklistState: Ci.nsIBlocklistService.STATE_NOT_BLOCKED,
+  }, {
+    id: "test20@tests.mozilla.org",
+    name: "silverdale Add-on",
+    description: "foo",
+    updateDate: new Date(2010, 4, 12, 0, 0, 0),
+    size: 56,
+    isActive: false,
+    appDisabled: true,
+    blocklistState: Ci.nsIBlocklistService.STATE_BLOCKED,
+  }]);
+
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+function set_order(aSortBy, aAscending) {
+  var list = gManagerWindow.document.getElementById("addon-list");
+  var elements = [];
+  var node = list.firstChild;
+  while (node) {
+    elements.push(node);
+    node = node.nextSibling;
+  }
+  gManagerWindow.sortElements(elements, ["uiState", aSortBy], aAscending);
+  for (let element of elements)
+    list.appendChild(element);
+}
+
+function check_order(aExpectedOrder) {
+  var order = [];
+  var list = gManagerWindow.document.getElementById("addon-list");
+  var node = list.firstChild;
+  while (node) {
+    var id = node.getAttribute("value");
+    if (id && id.endsWith("@tests.mozilla.org"))
+      order.push(node.getAttribute("value"));
+    node = node.nextSibling;
+  }
+
+  is(order.toSource(), aExpectedOrder.toSource(), "Should have seen the right order");
+}
+
+// Tests that ascending name ordering was the default
+add_test(function() {
+
+  check_order([
+    "test2@tests.mozilla.org",
+    "test4@tests.mozilla.org",
+    "test3@tests.mozilla.org",
+    "test5@tests.mozilla.org",
+    "test1@tests.mozilla.org",
+    "test7@tests.mozilla.org",
+    "test8@tests.mozilla.org",
+    "test6@tests.mozilla.org",
+    "test10@tests.mozilla.org",
+    "test9@tests.mozilla.org",
+    "test11@tests.mozilla.org",
+    "test13@tests.mozilla.org",
+    "test12@tests.mozilla.org",
+    "test14@tests.mozilla.org",
+    "test15@tests.mozilla.org",
+    "test17@tests.mozilla.org",
+    "test19@tests.mozilla.org",
+    "test16@tests.mozilla.org",
+    "test20@tests.mozilla.org",
+    "test18@tests.mozilla.org",
+  ]);
+  run_next_test();
+});
+
+// Tests that switching to date ordering works
+add_test(function() {
+  set_order("updateDate", false);
+
+  // When we're ascending with updateDate, it's from newest
+  // to oldest.
+
+  check_order([
+    "test5@tests.mozilla.org",
+    "test3@tests.mozilla.org",
+    "test1@tests.mozilla.org",
+    "test2@tests.mozilla.org",
+    "test4@tests.mozilla.org",
+    "test10@tests.mozilla.org",
+    "test9@tests.mozilla.org",
+    "test8@tests.mozilla.org",
+    "test6@tests.mozilla.org",
+    "test7@tests.mozilla.org",
+    "test12@tests.mozilla.org",
+    "test14@tests.mozilla.org",
+    "test15@tests.mozilla.org",
+    "test13@tests.mozilla.org",
+    "test11@tests.mozilla.org",
+    "test20@tests.mozilla.org",
+    "test17@tests.mozilla.org",
+    "test18@tests.mozilla.org",
+    "test19@tests.mozilla.org",
+    "test16@tests.mozilla.org",
+  ]);
+
+  set_order("updateDate", true);
+
+  check_order([
+    "test4@tests.mozilla.org",
+    "test2@tests.mozilla.org",
+    "test1@tests.mozilla.org",
+    "test3@tests.mozilla.org",
+    "test5@tests.mozilla.org",
+    "test7@tests.mozilla.org",
+    "test6@tests.mozilla.org",
+    "test8@tests.mozilla.org",
+    "test9@tests.mozilla.org",
+    "test10@tests.mozilla.org",
+    "test11@tests.mozilla.org",
+    "test13@tests.mozilla.org",
+    "test15@tests.mozilla.org",
+    "test14@tests.mozilla.org",
+    "test12@tests.mozilla.org",
+    "test16@tests.mozilla.org",
+    "test19@tests.mozilla.org",
+    "test18@tests.mozilla.org",
+    "test17@tests.mozilla.org",
+    "test20@tests.mozilla.org",
+  ]);
+
+  run_next_test();
+});
+
+// Tests that switching to name ordering works
+add_test(function() {
+  set_order("name", true);
+
+  check_order([
+    "test2@tests.mozilla.org",
+    "test4@tests.mozilla.org",
+    "test3@tests.mozilla.org",
+    "test5@tests.mozilla.org",
+    "test1@tests.mozilla.org",
+    "test7@tests.mozilla.org",
+    "test8@tests.mozilla.org",
+    "test6@tests.mozilla.org",
+    "test10@tests.mozilla.org",
+    "test9@tests.mozilla.org",
+    "test11@tests.mozilla.org",
+    "test13@tests.mozilla.org",
+    "test12@tests.mozilla.org",
+    "test14@tests.mozilla.org",
+    "test15@tests.mozilla.org",
+    "test17@tests.mozilla.org",
+    "test19@tests.mozilla.org",
+    "test16@tests.mozilla.org",
+    "test20@tests.mozilla.org",
+    "test18@tests.mozilla.org",
+  ]);
+
+  set_order("name", false);
+
+  check_order([
+    "test1@tests.mozilla.org",
+    "test5@tests.mozilla.org",
+    "test3@tests.mozilla.org",
+    "test4@tests.mozilla.org",
+    "test2@tests.mozilla.org",
+    "test9@tests.mozilla.org",
+    "test10@tests.mozilla.org",
+    "test6@tests.mozilla.org",
+    "test8@tests.mozilla.org",
+    "test7@tests.mozilla.org",
+    "test15@tests.mozilla.org",
+    "test14@tests.mozilla.org",
+    "test12@tests.mozilla.org",
+    "test13@tests.mozilla.org",
+    "test11@tests.mozilla.org",
+    "test18@tests.mozilla.org",
+    "test20@tests.mozilla.org",
+    "test16@tests.mozilla.org",
+    "test19@tests.mozilla.org",
+    "test17@tests.mozilla.org",
+  ]);
+
+  run_next_test();
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_sorting_plugins.js b/toolkit/mozapps/webextensions/test/browser/browser_sorting_plugins.js
new file mode 100644
index 000000000..2bb6b4ba4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_sorting_plugins.js
@@ -0,0 +1,95 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that sorting of plugins works correctly
+// (this test checks that plugins with "ask to activate" state appear after those with
+//  "always activate" and before those with "never activate")
+
+var gManagerWindow;
+var gProvider;
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+  gProvider.createAddons([{
+    //  enabledInstalled group
+    //    * Always activate
+    //    * Ask to activate
+    //    * Never activate
+    id: "test1@tests.mozilla.org",
+    name: "Java Applet Plug-in Java 7 Update 51",
+    description: "foo",
+    type: "plugin",
+    isActive: true,
+    userDisabled: AddonManager.STATE_ASK_TO_ACTIVATE
+  }, {
+    id: "test2@tests.mozilla.org",
+    name: "Quick Time Plug-in",
+    description: "foo",
+    type: "plugin",
+    isActive: true,
+    userDisabled: false
+  }, {
+    id: "test3@tests.mozilla.org",
+    name: "Shockwave Flash",
+    description: "foo",
+    type: "plugin",
+    isActive: false,
+    userDisabled: true
+  }, {
+    id: "test4@tests.mozilla.org",
+    name: "Adobe Reader Plug-in",
+    description: "foo",
+    type: "plugin",
+    isActive: true,
+    userDisabled: AddonManager.STATE_ASK_TO_ACTIVATE
+  }, {
+    id: "test5@tests.mozilla.org",
+    name: "3rd Party Plug-in",
+    description: "foo",
+    type: "plugin",
+    isActive: true,
+    userDisabled: false
+  }]);
+
+  open_manager("addons://list/plugin", function(aWindow) {
+    gManagerWindow = aWindow;
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+function check_order(aExpectedOrder) {
+  var order = [];
+  var list = gManagerWindow.document.getElementById("addon-list");
+  var node = list.firstChild;
+  while (node) {
+    var id = node.getAttribute("value");
+    if (id && id.endsWith("@tests.mozilla.org"))
+      order.push(node.getAttribute("value"));
+    node = node.nextSibling;
+  }
+
+  is(order.toSource(), aExpectedOrder.toSource(), "Should have seen the right order");
+}
+
+// Tests that ascending name ordering was the default
+add_test(function() {
+
+  check_order([
+    "test5@tests.mozilla.org",
+    "test2@tests.mozilla.org",
+    "test4@tests.mozilla.org",
+    "test1@tests.mozilla.org",
+    "test3@tests.mozilla.org"
+  ]);
+
+  run_next_test();
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_system_addons_are_e10s.js b/toolkit/mozapps/webextensions/test/browser/browser_system_addons_are_e10s.js
new file mode 100644
index 000000000..37ab76542
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_system_addons_are_e10s.js
@@ -0,0 +1,13 @@
+"use strict";
+
+add_task(function* test_enabled() {
+  let addons = yield new Promise(resolved => AddonManager.getAllAddons(resolved));
+  for (let addon of addons) {
+    if (addon.isSystem) {
+      ok(addon.multiprocessCompatible,
+         `System addon ${addon.id} is not marked as multiprocess compatible`);
+      ok(!addon.unpack,
+         `System add-on ${addon.id} isn't a packed add-on.`);
+    }
+  }
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_tabsettings.js b/toolkit/mozapps/webextensions/test/browser/browser_tabsettings.js
new file mode 100644
index 000000000..2838698c7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_tabsettings.js
@@ -0,0 +1,100 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests various aspects of the details view
+
+var gManagerWindow;
+var gCategoryUtilities;
+var gProvider;
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "tabsettings@tests.mozilla.org",
+    name: "Tab Settings",
+    version: "1",
+    optionsURL: CHROMEROOT + "addon_prefs.xul",
+    optionsType: AddonManager.OPTIONS_TYPE_TAB
+  }]);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+add_test(function() {
+  var addon = get_addon_element(gManagerWindow, "tabsettings@tests.mozilla.org");
+  is(addon.mAddon.optionsType, AddonManager.OPTIONS_TYPE_TAB, "Options should be inline type");
+  addon.parentNode.ensureElementIsVisible(addon);
+
+  var button = gManagerWindow.document.getAnonymousElementByAttribute(addon, "anonid", "preferences-btn");
+  is_element_visible(button, "Preferences button should be visible");
+
+  if (gUseInContentUI) {
+    EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+    var browser = gBrowser.selectedBrowser;
+    browser.addEventListener("DOMContentLoaded", function() {
+      browser.removeEventListener("DOMContentLoaded", arguments.callee, false);
+      is(browser.currentURI.spec, addon.mAddon.optionsURL, "New tab should have loaded the options URL");
+      browser.contentWindow.close();
+      run_next_test();
+    }, false);
+    return;
+  }
+
+  let instantApply = Services.prefs.getBoolPref("browser.preferences.instantApply");
+
+  function observer(aSubject, aTopic, aData) {
+    switch (aTopic) {
+      case "domwindowclosed":
+        // Give the preference window a chance to finish closing before
+        // closing the add-ons manager.
+        waitForFocus(function () {
+          Services.ww.unregisterNotification(observer);
+          run_next_test();
+        });
+        break;
+      case "domwindowopened":
+        let win = aSubject.QueryInterface(Ci.nsIDOMEventTarget);
+        waitForFocus(function () {
+          // If the openDialog privileges are wrong a new browser window
+          // will open, let the test proceed (and fail) rather than timeout.
+          if (win.location != addon.mAddon.optionsURL &&
+              win.location != "chrome://browser/content/browser.xul")
+            return;
+
+          is(win.location, addon.mAddon.optionsURL,
+             "The correct addon pref window should have opened");
+
+          let chromeFlags = win.QueryInterface(Ci.nsIInterfaceRequestor).
+                                getInterface(Ci.nsIWebNavigation).
+                                QueryInterface(Ci.nsIDocShellTreeItem).treeOwner.
+                                QueryInterface(Ci.nsIInterfaceRequestor).
+                                getInterface(Ci.nsIXULWindow).chromeFlags;
+          ok(chromeFlags & Ci.nsIWebBrowserChrome.CHROME_OPENAS_CHROME &&
+             (instantApply || chromeFlags & Ci.nsIWebBrowserChrome.CHROME_OPENAS_DIALOG),
+             "Window was open as a chrome dialog.");
+
+          win.close();
+        }, win);
+        break;
+    }
+  }
+
+  Services.ww.registerNotification(observer);
+  EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_task_next_test.js b/toolkit/mozapps/webextensions/test/browser/browser_task_next_test.js
new file mode 100644
index 000000000..5ff2aff78
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_task_next_test.js
@@ -0,0 +1,17 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test that we throw if a test created with add_task()
+// calls run_next_test
+
+add_task(function* run_next_throws() {
+  let err = null;
+  try {
+    run_next_test();
+  } catch (e) {
+    err = e;
+    info("run_next_test threw " + err);
+  }
+  ok(err, "run_next_test() should throw an error inside an add_task test");
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_types.js b/toolkit/mozapps/webextensions/test/browser/browser_types.js
new file mode 100644
index 000000000..8abb0ff73
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_types.js
@@ -0,0 +1,473 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that registering new types works
+
+var gManagerWindow;
+var gCategoryUtilities;
+
+var gProvider = {
+};
+
+var gTypes = [
+  new AddonManagerPrivate.AddonType("type1", null, "Type 1",
+                                    AddonManager.VIEW_TYPE_LIST, 4500),
+  new AddonManagerPrivate.AddonType("missing1", null, "Missing 1"),
+  new AddonManagerPrivate.AddonType("type2", null, "Type 1",
+                                    AddonManager.VIEW_TYPE_LIST, 5100,
+                                    AddonManager.TYPE_UI_HIDE_EMPTY),
+  {
+    id: "type3",
+    name: "Type 3",
+    uiPriority: 5200,
+    viewType: AddonManager.VIEW_TYPE_LIST
+  }
+];
+
+function go_back(aManager) {
+  if (gUseInContentUI) {
+    gBrowser.goBack();
+  } else {
+    EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("back-btn"),
+                                       { }, aManager);
+  }
+}
+
+function go_forward(aManager) {
+  if (gUseInContentUI) {
+    gBrowser.goForward();
+  } else {
+    EventUtils.synthesizeMouseAtCenter(aManager.document.getElementById("forward-btn"),
+                                       { }, aManager);
+  }
+}
+
+function check_state(aManager, canGoBack, canGoForward) {
+  var doc = aManager.document;
+
+  if (gUseInContentUI) {
+    is(gBrowser.canGoBack, canGoBack, "canGoBack should be correct");
+    is(gBrowser.canGoForward, canGoForward, "canGoForward should be correct");
+  }
+
+  if (!is_hidden(doc.getElementById("back-btn"))) {
+    is(!doc.getElementById("back-btn").disabled, canGoBack, "Back button should have the right state");
+    is(!doc.getElementById("forward-btn").disabled, canGoForward, "Forward button should have the right state");
+  }
+}
+
+function test() {
+  waitForExplicitFinish();
+
+  run_next_test();
+}
+
+function end_test() {
+  finish();
+}
+
+// Add a new type, open the manager and make sure it is in the right place
+add_test(function() {
+  AddonManagerPrivate.registerProvider(gProvider, gTypes);
+
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    ok(gCategoryUtilities.get("type1"), "Type 1 should be present");
+    ok(gCategoryUtilities.get("type2"), "Type 2 should be present");
+    ok(!gCategoryUtilities.get("missing1", true), "Missing 1 should be absent");
+
+    is(gCategoryUtilities.get("type1").previousSibling.getAttribute("value"),
+       "addons://list/extension", "Type 1 should be in the right place");
+    is(gCategoryUtilities.get("type2").previousSibling.getAttribute("value"),
+       "addons://list/theme", "Type 2 should be in the right place");
+
+    ok(gCategoryUtilities.isTypeVisible("type1"), "Type 1 should be visible");
+    ok(!gCategoryUtilities.isTypeVisible("type2"), "Type 2 should be hidden");
+
+    run_next_test();
+  });
+});
+
+// Select the type, close the manager and remove it then open the manager and
+// check we're back to the default view
+add_test(function() {
+  gCategoryUtilities.openType("type1", function() {
+    close_manager(gManagerWindow, function() {
+      AddonManagerPrivate.unregisterProvider(gProvider);
+
+      open_manager(null, function(aWindow) {
+        gManagerWindow = aWindow;
+        gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+        ok(!gCategoryUtilities.get("type1", true), "Type 1 should be absent");
+        ok(!gCategoryUtilities.get("type2", true), "Type 2 should be absent");
+        ok(!gCategoryUtilities.get("missing1", true), "Missing 1 should be absent");
+
+        is(gCategoryUtilities.selectedCategory, "discover", "Should be back to the default view");
+
+        close_manager(gManagerWindow, run_next_test);
+      });
+    });
+  });
+});
+
+// Add a type while the manager is still open and check it appears
+add_test(function() {
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    ok(!gCategoryUtilities.get("type1", true), "Type 1 should be absent");
+    ok(!gCategoryUtilities.get("type2", true), "Type 2 should be absent");
+    ok(!gCategoryUtilities.get("missing1", true), "Missing 1 should be absent");
+
+    AddonManagerPrivate.registerProvider(gProvider, gTypes);
+
+    ok(gCategoryUtilities.get("type1"), "Type 1 should be present");
+    ok(gCategoryUtilities.get("type2"), "Type 2 should be present");
+    ok(!gCategoryUtilities.get("missing1", true), "Missing 1 should be absent");
+
+    is(gCategoryUtilities.get("type1").previousSibling.getAttribute("value"),
+       "addons://list/extension", "Type 1 should be in the right place");
+    is(gCategoryUtilities.get("type2").previousSibling.getAttribute("value"),
+       "addons://list/theme", "Type 2 should be in the right place");
+
+    ok(gCategoryUtilities.isTypeVisible("type1"), "Type 1 should be visible");
+    ok(!gCategoryUtilities.isTypeVisible("type2"), "Type 2 should be hidden");
+
+    run_next_test();
+  });
+});
+
+// Remove the type while it is beng viewed and check it is replaced with the
+// default view
+add_test(function() {
+  gCategoryUtilities.openType("type1", function() {
+    gCategoryUtilities.openType("plugin", function() {
+      go_back(gManagerWindow);
+      wait_for_view_load(gManagerWindow, function() {
+        is(gCategoryUtilities.selectedCategory, "type1", "Should be showing the custom view");
+        check_state(gManagerWindow, true, true);
+
+        AddonManagerPrivate.unregisterProvider(gProvider);
+
+        ok(!gCategoryUtilities.get("type1", true), "Type 1 should be absent");
+        ok(!gCategoryUtilities.get("type2", true), "Type 2 should be absent");
+        ok(!gCategoryUtilities.get("missing1", true), "Missing 1 should be absent");
+
+        is(gCategoryUtilities.selectedCategory, "discover", "Should be back to the default view");
+        check_state(gManagerWindow, true, true);
+
+        go_back(gManagerWindow);
+        wait_for_view_load(gManagerWindow, function() {
+          is(gCategoryUtilities.selectedCategory, "extension", "Should be showing the extension view");
+          check_state(gManagerWindow, false, true);
+
+          go_forward(gManagerWindow);
+          wait_for_view_load(gManagerWindow, function() {
+            is(gCategoryUtilities.selectedCategory, "discover", "Should be back to the default view");
+            check_state(gManagerWindow, true, true);
+
+            go_forward(gManagerWindow);
+            wait_for_view_load(gManagerWindow, function() {
+              is(gCategoryUtilities.selectedCategory, "plugin", "Should be back to the plugins view");
+              check_state(gManagerWindow, true, false);
+
+              go_back(gManagerWindow);
+              wait_for_view_load(gManagerWindow, function() {
+                is(gCategoryUtilities.selectedCategory, "discover", "Should be back to the default view");
+                check_state(gManagerWindow, true, true);
+
+                close_manager(gManagerWindow, run_next_test);
+              });
+            });
+          });
+        });
+      });
+    });
+  });
+});
+
+// Test that when going back to a now missing category we skip it
+add_test(function() {
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    AddonManagerPrivate.registerProvider(gProvider, gTypes);
+
+    ok(gCategoryUtilities.get("type1"), "Type 1 should be present");
+    ok(gCategoryUtilities.isTypeVisible("type1"), "Type 1 should be visible");
+
+    gCategoryUtilities.openType("type1", function() {
+      gCategoryUtilities.openType("plugin", function() {
+        AddonManagerPrivate.unregisterProvider(gProvider);
+
+        ok(!gCategoryUtilities.get("type1", true), "Type 1 should not be present");
+
+        go_back(gManagerWindow);
+
+        wait_for_view_load(gManagerWindow, function() {
+          is(gCategoryUtilities.selectedCategory, "extension", "Should be back to the first view");
+          check_state(gManagerWindow, false, true);
+
+          close_manager(gManagerWindow, run_next_test);
+        });
+      });
+    });
+  });
+});
+
+// Test that when going forward to a now missing category we skip it
+add_test(function() {
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    AddonManagerPrivate.registerProvider(gProvider, gTypes);
+
+    ok(gCategoryUtilities.get("type1"), "Type 1 should be present");
+    ok(gCategoryUtilities.isTypeVisible("type1"), "Type 1 should be visible");
+
+    gCategoryUtilities.openType("type1", function() {
+      gCategoryUtilities.openType("plugin", function() {
+        go_back(gManagerWindow);
+        wait_for_view_load(gManagerWindow, function() {
+          go_back(gManagerWindow);
+          wait_for_view_load(gManagerWindow, function() {
+            is(gCategoryUtilities.selectedCategory, "extension", "Should be back to the extension view");
+
+            AddonManagerPrivate.unregisterProvider(gProvider);
+
+            ok(!gCategoryUtilities.get("type1", true), "Type 1 should not be present");
+
+            go_forward(gManagerWindow);
+
+            wait_for_view_load(gManagerWindow, function() {
+              is(gCategoryUtilities.selectedCategory, "plugin", "Should be back to the plugin view");
+              check_state(gManagerWindow, true, false);
+
+              close_manager(gManagerWindow, run_next_test);
+            });
+          });
+        });
+      });
+    });
+  });
+});
+
+// Test that when going back to a now missing category and we can't go back any
+// any further then we just display the default view
+add_test(function() {
+  AddonManagerPrivate.registerProvider(gProvider, gTypes);
+
+  open_manager("addons://list/type1", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    is(gCategoryUtilities.selectedCategory, "type1", "Should be at the custom view");
+
+    ok(gCategoryUtilities.get("type1"), "Type 1 should be present");
+    ok(gCategoryUtilities.isTypeVisible("type1"), "Type 1 should be visible");
+
+    gCategoryUtilities.openType("extension", function() {
+      AddonManagerPrivate.unregisterProvider(gProvider);
+
+      ok(!gCategoryUtilities.get("type1", true), "Type 1 should not be present");
+
+      go_back(gManagerWindow);
+
+      wait_for_view_load(gManagerWindow, function() {
+        is(gCategoryUtilities.selectedCategory, "discover", "Should be at the default view");
+        check_state(gManagerWindow, false, true);
+
+        close_manager(gManagerWindow, run_next_test);
+      });
+    });
+  });
+});
+
+// Test that when going forward to a now missing category and we can't go
+// forward any further then we just display the default view
+add_test(function() {
+  AddonManagerPrivate.registerProvider(gProvider, gTypes);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    ok(gCategoryUtilities.get("type1"), "Type 1 should be present");
+    ok(gCategoryUtilities.isTypeVisible("type1"), "Type 1 should be visible");
+
+    gCategoryUtilities.openType("type1", function() {
+      go_back(gManagerWindow);
+
+      wait_for_view_load(gManagerWindow, function() {
+        is(gCategoryUtilities.selectedCategory, "extension", "Should be at the extension view");
+
+        AddonManagerPrivate.unregisterProvider(gProvider);
+
+        ok(!gCategoryUtilities.get("type1", true), "Type 1 should not be present");
+
+        go_forward(gManagerWindow);
+
+        wait_for_view_load(gManagerWindow, function() {
+          is(gCategoryUtilities.selectedCategory, "discover", "Should be at the default view");
+          check_state(gManagerWindow, true, false);
+
+          close_manager(gManagerWindow, run_next_test);
+        });
+      });
+    });
+  });
+});
+
+// Test that when going back we skip multiple missing categories
+add_test(function() {
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    AddonManagerPrivate.registerProvider(gProvider, gTypes);
+
+    ok(gCategoryUtilities.get("type1"), "Type 1 should be present");
+    ok(gCategoryUtilities.isTypeVisible("type1"), "Type 1 should be visible");
+
+    gCategoryUtilities.openType("type1", function() {
+      gCategoryUtilities.openType("type3", function() {
+        gCategoryUtilities.openType("plugin", function() {
+          AddonManagerPrivate.unregisterProvider(gProvider);
+
+          ok(!gCategoryUtilities.get("type1", true), "Type 1 should not be present");
+
+          go_back(gManagerWindow);
+
+          wait_for_view_load(gManagerWindow, function() {
+            is(gCategoryUtilities.selectedCategory, "extension", "Should be back to the first view");
+            check_state(gManagerWindow, false, true);
+
+            close_manager(gManagerWindow, run_next_test);
+          });
+        });
+      });
+    });
+  });
+});
+
+// Test that when going forward we skip multiple missing categories
+add_test(function() {
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    AddonManagerPrivate.registerProvider(gProvider, gTypes);
+
+    ok(gCategoryUtilities.get("type1"), "Type 1 should be present");
+    ok(gCategoryUtilities.isTypeVisible("type1"), "Type 1 should be visible");
+
+    gCategoryUtilities.openType("type1", function() {
+      gCategoryUtilities.openType("type3", function() {
+        gCategoryUtilities.openType("plugin", function() {
+          go_back(gManagerWindow);
+          wait_for_view_load(gManagerWindow, function() {
+            go_back(gManagerWindow);
+            wait_for_view_load(gManagerWindow, function() {
+              go_back(gManagerWindow);
+              wait_for_view_load(gManagerWindow, function() {
+                is(gCategoryUtilities.selectedCategory, "extension", "Should be back to the extension view");
+
+                AddonManagerPrivate.unregisterProvider(gProvider);
+
+                ok(!gCategoryUtilities.get("type1", true), "Type 1 should not be present");
+
+                go_forward(gManagerWindow);
+
+                wait_for_view_load(gManagerWindow, function() {
+                  is(gCategoryUtilities.selectedCategory, "plugin", "Should be back to the plugin view");
+                  check_state(gManagerWindow, true, false);
+
+                  close_manager(gManagerWindow, run_next_test);
+                });
+              });
+            });
+          });
+        });
+      });
+    });
+  });
+});
+
+// Test that when going back we skip all missing categories and when we can't go
+// back any any further then we just display the default view
+add_test(function() {
+  AddonManagerPrivate.registerProvider(gProvider, gTypes);
+
+  open_manager("addons://list/type1", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    is(gCategoryUtilities.selectedCategory, "type1", "Should be at the custom view");
+
+    ok(gCategoryUtilities.get("type1"), "Type 1 should be present");
+    ok(gCategoryUtilities.isTypeVisible("type1"), "Type 1 should be visible");
+
+    gCategoryUtilities.openType("type3", function() {
+      gCategoryUtilities.openType("extension", function() {
+        AddonManagerPrivate.unregisterProvider(gProvider);
+
+        ok(!gCategoryUtilities.get("type1", true), "Type 1 should not be present");
+
+        go_back(gManagerWindow);
+
+        wait_for_view_load(gManagerWindow, function() {
+          is(gCategoryUtilities.selectedCategory, "discover", "Should be at the default view");
+          check_state(gManagerWindow, false, true);
+
+          close_manager(gManagerWindow, run_next_test);
+        });
+      });
+    });
+  });
+});
+
+// Test that when going forward we skip all missing categories and when we can't
+// go back any any further then we just display the default view
+add_test(function() {
+  AddonManagerPrivate.registerProvider(gProvider, gTypes);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+
+    ok(gCategoryUtilities.get("type1"), "Type 1 should be present");
+    ok(gCategoryUtilities.isTypeVisible("type1"), "Type 1 should be visible");
+
+    gCategoryUtilities.openType("type1", function() {
+      gCategoryUtilities.openType("type3", function() {
+        go_back(gManagerWindow);
+
+        wait_for_view_load(gManagerWindow, function() {
+          go_back(gManagerWindow);
+
+          wait_for_view_load(gManagerWindow, function() {
+            is(gCategoryUtilities.selectedCategory, "extension", "Should be at the extension view");
+
+            AddonManagerPrivate.unregisterProvider(gProvider);
+
+            ok(!gCategoryUtilities.get("type1", true), "Type 1 should not be present");
+
+            go_forward(gManagerWindow);
+
+            wait_for_view_load(gManagerWindow, function() {
+              is(gCategoryUtilities.selectedCategory, "discover", "Should be at the default view");
+              check_state(gManagerWindow, true, false);
+
+              close_manager(gManagerWindow, run_next_test);
+            });
+          });
+        });
+      });
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_uninstalling.js b/toolkit/mozapps/webextensions/test/browser/browser_uninstalling.js
new file mode 100644
index 000000000..a9329e496
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_uninstalling.js
@@ -0,0 +1,1098 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that searching for add-ons works correctly
+
+var gManagerWindow;
+var gDocument;
+var gCategoryUtilities;
+var gProvider;
+
+function test() {
+  requestLongerTimeout(2);
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "Uninstall needs restart",
+    type: "extension",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_UNINSTALL
+  }, {
+    id: "addon2@tests.mozilla.org",
+    name: "Uninstall doesn't need restart 1",
+    type: "extension",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon3@tests.mozilla.org",
+    name: "Uninstall doesn't need restart 2",
+    type: "extension",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon4@tests.mozilla.org",
+    name: "Uninstall doesn't need restart 3",
+    type: "extension",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon5@tests.mozilla.org",
+    name: "Uninstall doesn't need restart 4",
+    type: "extension",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon6@tests.mozilla.org",
+    name: "Uninstall doesn't need restart 5",
+    type: "extension",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon7@tests.mozilla.org",
+    name: "Uninstall doesn't need restart 6",
+    type: "extension",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon8@tests.mozilla.org",
+    name: "Uninstall doesn't need restart 7",
+    type: "extension",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }, {
+    id: "addon9@tests.mozilla.org",
+    name: "Uninstall doesn't need restart 8",
+    type: "extension",
+    operationsRequiringRestart: AddonManager.OP_NEEDS_RESTART_NONE
+  }]);
+
+  open_manager(null, function(aWindow) {
+    gManagerWindow = aWindow;
+    gDocument = gManagerWindow.document;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+function get_item_in_list(aId, aList) {
+  var item = aList.firstChild;
+  while (item) {
+    if ("mAddon" in item && item.mAddon.id == aId) {
+      aList.ensureElementIsVisible(item);
+      return item;
+    }
+    item = item.nextSibling;
+  }
+  return null;
+}
+
+// Tests that uninstalling a normal add-on from the list view can be undone
+add_test(function() {
+  var ID = "addon1@tests.mozilla.org";
+  var list = gDocument.getElementById("addon-list");
+
+  // Select the extensions category
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+      ok(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL, "Add-on should require a restart to uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(!button.hidden, "Restart button should not be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      run_next_test();
+    });
+  });
+});
+
+// Tests that uninstalling a restartless add-on from the list view can be undone
+add_test(function() {
+  var ID = "addon2@tests.mozilla.org";
+  var list = gDocument.getElementById("addon-list");
+
+  // Select the extensions category
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(aAddon.isActive, "Add-on should be active");
+      ok(!(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL), "Add-on should not require a restart to uninstall");
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL, "Add-on should be pending uninstall");
+      ok(!aAddon.isActive, "Add-on should be inactive");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(button.hidden, "Restart button should be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      ok(aAddon.isActive, "Add-on should be active");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      run_next_test();
+    });
+  });
+});
+
+// Tests that uninstalling a disabled restartless add-on from the list view can
+// be undone and doesn't re-enable
+add_test(function() {
+  var ID = "addon2@tests.mozilla.org";
+  var list = gDocument.getElementById("addon-list");
+
+  // Select the extensions category
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      aAddon.userDisabled = true;
+
+      ok(!aAddon.isActive, "Add-on should be inactive");
+      ok(!(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL), "Add-on should not require a restart to uninstall");
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL, "Add-on should be pending uninstall");
+      ok(!aAddon.isActive, "Add-on should be inactive");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(button.hidden, "Restart button should be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      ok(!aAddon.isActive, "Add-on should be inactive");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      aAddon.userDisabled = false;
+      ok(aAddon.isActive, "Add-on should be active");
+
+      run_next_test();
+    });
+  });
+});
+
+// Tests that uninstalling a normal add-on from the search view can be undone
+add_test(function() {
+  var ID = "addon1@tests.mozilla.org";
+  var list = gDocument.getElementById("search-list");
+
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  searchBox.value = "Uninstall";
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    is(gCategoryUtilities.selectedCategory, "search", "View should have changed to search");
+
+    // Make sure to show local add-ons
+    EventUtils.synthesizeMouseAtCenter(gDocument.getElementById("search-filter-local"), { }, gManagerWindow);
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+      ok(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL, "Add-on should require a restart to uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(!button.hidden, "Restart button should not be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      run_next_test();
+    });
+  });
+});
+
+// Tests that uninstalling a restartless add-on from the search view can be undone
+add_test(function() {
+  var ID = "addon2@tests.mozilla.org";
+  var list = gDocument.getElementById("search-list");
+
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  searchBox.value = "Uninstall";
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    is(gCategoryUtilities.selectedCategory, "search", "View should have changed to search");
+
+    // Make sure to show local add-ons
+    EventUtils.synthesizeMouseAtCenter(gDocument.getElementById("search-filter-local"), { }, gManagerWindow);
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(aAddon.isActive, "Add-on should be active");
+      ok(!(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL), "Add-on should not require a restart to uninstall");
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL, "Add-on should be pending uninstall");
+      ok(!aAddon.isActive, "Add-on should be inactive");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(button.hidden, "Restart button should be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      ok(aAddon.isActive, "Add-on should be active");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      run_next_test();
+    });
+  });
+});
+
+// Tests that uninstalling a disabled restartless add-on from the search view can
+// be undone and doesn't re-enable
+add_test(function() {
+  var ID = "addon2@tests.mozilla.org";
+  var list = gDocument.getElementById("search-list");
+
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  searchBox.value = "Uninstall";
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    is(gCategoryUtilities.selectedCategory, "search", "View should have changed to search");
+
+    // Make sure to show local add-ons
+    EventUtils.synthesizeMouseAtCenter(gDocument.getElementById("search-filter-local"), { }, gManagerWindow);
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      aAddon.userDisabled = true;
+
+      ok(!aAddon.isActive, "Add-on should be inactive");
+      ok(!(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL), "Add-on should not require a restart to uninstall");
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+      ok(!aAddon.isActive, "Add-on should be inactive");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(button.hidden, "Restart button should be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      ok(!aAddon.isActive, "Add-on should be inactive");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      aAddon.userDisabled = false;
+      ok(aAddon.isActive, "Add-on should be active");
+
+      run_next_test();
+    });
+  });
+});
+
+// Tests that uninstalling a normal add-on from the details view switches back
+// to the list view and can be undone
+add_test(function() {
+  var ID = "addon1@tests.mozilla.org";
+  var list = gDocument.getElementById("addon-list");
+
+  // Select the extensions category
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+      ok(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL, "Add-on should require a restart to uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
+      EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
+      wait_for_view_load(gManagerWindow, function() {
+        is(get_current_view(gManagerWindow).id, "detail-view", "Should be in the detail view");
+
+        var button = gDocument.getElementById("detail-uninstall-btn");
+        isnot(button, null, "Should have a remove button");
+        ok(!button.disabled, "Button should not be disabled");
+
+        EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+        wait_for_view_load(gManagerWindow, function() {
+          is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+          var item = get_item_in_list(ID, list);
+          isnot(item, null, "Should have found the add-on in the list");
+          is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+          ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+
+          // Force XBL to apply
+          item.clientTop;
+
+          var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+          isnot(button, null, "Should have a restart button");
+          ok(!button.hidden, "Restart button should not be hidden");
+          button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+          isnot(button, null, "Should have an undo button");
+
+          EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+          // Force XBL to apply
+          item.clientTop;
+
+          ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+          button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+          isnot(button, null, "Should have a remove button");
+          ok(!button.disabled, "Button should not be disabled");
+
+          run_next_test();
+        });
+      });
+    });
+  });
+});
+
+// Tests that uninstalling a restartless add-on from the details view switches
+// back to the list view and can be undone
+add_test(function() {
+  var ID = "addon2@tests.mozilla.org";
+  var list = gDocument.getElementById("addon-list");
+
+  // Select the extensions category
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(aAddon.isActive, "Add-on should be active");
+      ok(!(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL), "Add-on should not require a restart to uninstall");
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
+      EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
+      wait_for_view_load(gManagerWindow, function() {
+        is(get_current_view(gManagerWindow).id, "detail-view", "Should be in the detail view");
+
+        var button = gDocument.getElementById("detail-uninstall-btn");
+        isnot(button, null, "Should have a remove button");
+        ok(!button.disabled, "Button should not be disabled");
+
+        EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+        wait_for_view_load(gManagerWindow, function() {
+          is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+          var item = get_item_in_list(ID, list);
+          isnot(item, null, "Should have found the add-on in the list");
+          is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+          ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+          ok(!aAddon.isActive, "Add-on should be inactive");
+
+          // Force XBL to apply
+          item.clientTop;
+
+          var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+          isnot(button, null, "Should have a restart button");
+          ok(button.hidden, "Restart button should be hidden");
+          button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+          isnot(button, null, "Should have an undo button");
+
+          EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+          // Force XBL to apply
+          item.clientTop;
+
+          ok(aAddon.isActive, "Add-on should be active");
+          button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+          isnot(button, null, "Should have a remove button");
+          ok(!button.disabled, "Button should not be disabled");
+
+          run_next_test();
+        });
+      });
+    });
+  });
+});
+
+// Tests that uninstalling a restartless add-on from the details view switches
+// back to the list view and can be undone and doesn't re-enable
+add_test(function() {
+  var ID = "addon2@tests.mozilla.org";
+  var list = gDocument.getElementById("addon-list");
+
+  // Select the extensions category
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      aAddon.userDisabled = true;
+
+      ok(!aAddon.isActive, "Add-on should be inactive");
+      ok(!(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL), "Add-on should not require a restart to uninstall");
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      EventUtils.synthesizeMouseAtCenter(item, { clickCount: 1 }, gManagerWindow);
+      EventUtils.synthesizeMouseAtCenter(item, { clickCount: 2 }, gManagerWindow);
+      wait_for_view_load(gManagerWindow, function() {
+        is(get_current_view(gManagerWindow).id, "detail-view", "Should be in the detail view");
+
+        var button = gDocument.getElementById("detail-uninstall-btn");
+        isnot(button, null, "Should have a remove button");
+        ok(!button.disabled, "Button should not be disabled");
+
+        EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+        wait_for_view_load(gManagerWindow, function() {
+          is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+          var item = get_item_in_list(ID, list);
+          isnot(item, null, "Should have found the add-on in the list");
+          is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+          ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+          ok(!aAddon.isActive, "Add-on should be inactive");
+
+          // Force XBL to apply
+          item.clientTop;
+
+          var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+          isnot(button, null, "Should have a restart button");
+          ok(button.hidden, "Restart button should be hidden");
+          button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+          isnot(button, null, "Should have an undo button");
+
+          EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+          // Force XBL to apply
+          item.clientTop;
+
+          ok(!aAddon.isActive, "Add-on should be inactive");
+          button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+          isnot(button, null, "Should have a remove button");
+          ok(!button.disabled, "Button should not be disabled");
+
+          aAddon.userDisabled = false;
+          ok(aAddon.isActive, "Add-on should be active");
+
+          run_next_test();
+        });
+      });
+    });
+  });
+});
+
+// Tests that a normal add-on pending uninstall shows up in the list view
+add_test(function() {
+  var ID = "addon1@tests.mozilla.org";
+  var list = gDocument.getElementById("addon-list");
+
+  // Select the extensions category
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+      ok(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL, "Add-on should require a restart to uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(!button.hidden, "Restart button should not be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      gCategoryUtilities.openType("plugin", function() {
+        is(gCategoryUtilities.selectedCategory, "plugin", "View should have changed to plugin");
+        gCategoryUtilities.openType("extension", function() {
+          is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+          var item = get_item_in_list(ID, list);
+          isnot(item, null, "Should have found the add-on in the list");
+          is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+          ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+
+          var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+          isnot(button, null, "Should have a restart button");
+          ok(!button.hidden, "Restart button should not be hidden");
+          button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+          isnot(button, null, "Should have an undo button");
+
+          EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+          // Force XBL to apply
+          item.clientTop;
+          ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+          button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+          isnot(button, null, "Should have a remove button");
+          ok(!button.disabled, "Button should not be disabled");
+
+          run_next_test();
+        });
+      });
+    });
+  });
+});
+
+// Tests that a normal add-on pending uninstall shows up in the search view
+add_test(function() {
+  var ID = "addon1@tests.mozilla.org";
+  var list = gDocument.getElementById("search-list");
+
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  searchBox.value = "Uninstall";
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    is(gCategoryUtilities.selectedCategory, "search", "View should have changed to search");
+
+    // Make sure to show local add-ons
+    EventUtils.synthesizeMouseAtCenter(gDocument.getElementById("search-filter-local"), { }, gManagerWindow);
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+      ok(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL, "Add-on should require a restart to uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(!button.hidden, "Restart button should not be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      gCategoryUtilities.openType("plugin", function() {
+        is(gCategoryUtilities.selectedCategory, "plugin", "View should have changed to plugin");
+        searchBox.value = "Uninstall";
+
+        EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+        EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+        wait_for_view_load(gManagerWindow, function() {
+          is(gCategoryUtilities.selectedCategory, "search", "View should have changed to search");
+
+          var item = get_item_in_list(ID, list);
+          isnot(item, null, "Should have found the add-on in the list");
+          is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+          ok(!!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should be pending uninstall");
+
+          var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+          isnot(button, null, "Should have a restart button");
+          ok(!button.hidden, "Restart button should not be hidden");
+          button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+          isnot(button, null, "Should have an undo button");
+
+          EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+          // Force XBL to apply
+          item.clientTop;
+          ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+          button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+          isnot(button, null, "Should have a remove button");
+          ok(!button.disabled, "Button should not be disabled");
+
+          run_next_test();
+        });
+      });
+    });
+  });
+});
+
+// Tests that switching away from the list view finalises the uninstall of
+// multiple restartless add-ons
+add_test(function() {
+  var ID = "addon2@tests.mozilla.org";
+  var ID2 = "addon6@tests.mozilla.org";
+  var list = gDocument.getElementById("addon-list");
+
+  // Select the extensions category
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(aAddon.isActive, "Add-on should be active");
+      ok(!(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL), "Add-on should not require a restart to uninstall");
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+      ok(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL, "Add-on should be pending uninstall");
+      ok(!aAddon.isActive, "Add-on should be inactive");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(button.hidden, "Restart button should be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      item = get_item_in_list(ID2, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      gCategoryUtilities.openType("plugin", function() {
+        is(gCategoryUtilities.selectedCategory, "plugin", "View should have changed to extension");
+
+        AddonManager.getAddonsByIDs([ID, ID2], function([aAddon, aAddon2]) {
+          is(aAddon, null, "Add-on should no longer be installed");
+          is(aAddon2, null, "Second add-on should no longer be installed");
+
+          gCategoryUtilities.openType("extension", function() {
+            is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+            var item = get_item_in_list(ID, list);
+            is(item, null, "Should not have found the add-on in the list");
+            item = get_item_in_list(ID2, list);
+            is(item, null, "Should not have found the second add-on in the list");
+
+            run_next_test();
+          });
+        });
+      });
+    });
+  });
+});
+
+// Tests that switching away from the search view finalises the uninstall of
+// multiple restartless add-ons
+add_test(function() {
+  var ID = "addon3@tests.mozilla.org";
+  var ID2 = "addon7@tests.mozilla.org";
+  var list = gDocument.getElementById("search-list");
+
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  searchBox.value = "Uninstall";
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    is(gCategoryUtilities.selectedCategory, "search", "View should have changed to search");
+
+    // Make sure to show local add-ons
+    EventUtils.synthesizeMouseAtCenter(gDocument.getElementById("search-filter-local"), { }, gManagerWindow);
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(aAddon.isActive, "Add-on should be active");
+      ok(!(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL), "Add-on should not require a restart to uninstall");
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL, "Add-on should be pending uninstall");
+      ok(!aAddon.isActive, "Add-on should be inactive");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(button.hidden, "Restart button should be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      item = get_item_in_list(ID2, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      gCategoryUtilities.openType("plugin", function() {
+        is(gCategoryUtilities.selectedCategory, "plugin", "View should have changed to extension");
+
+        AddonManager.getAddonsByIDs([ID, ID2], function([aAddon, aAddon2]) {
+          is(aAddon, null, "Add-on should no longer be installed");
+          is(aAddon2, null, "Second add-on should no longer be installed");
+
+          searchBox.value = "Uninstall";
+
+          EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+          EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+          wait_for_view_load(gManagerWindow, function() {
+            is(gCategoryUtilities.selectedCategory, "search", "View should have changed to search");
+
+            var item = get_item_in_list(ID, list);
+            is(item, null, "Should not have found the add-on in the list");
+            item = get_item_in_list(ID2, list);
+            is(item, null, "Should not have found the second add-on in the list");
+
+            run_next_test();
+          });
+        });
+      });
+    });
+  });
+});
+
+// Tests that closing the manager from the list view finalises the uninstall of
+// multiple restartless add-ons
+add_test(function() {
+  var ID = "addon4@tests.mozilla.org";
+  var ID2 = "addon8@tests.mozilla.org";
+  var list = gDocument.getElementById("addon-list");
+
+  // Select the extensions category
+  gCategoryUtilities.openType("extension", function() {
+    is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(aAddon.isActive, "Add-on should be active");
+      ok(!(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL), "Add-on should not require a restart to uninstall");
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL, "Add-on should be pending uninstall");
+      ok(!aAddon.isActive, "Add-on should be inactive");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(button.hidden, "Restart button should be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      item = get_item_in_list(ID2, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      close_manager(gManagerWindow, function() {
+        AddonManager.getAddonsByIDs([ID, ID2], function([aAddon, aAddon2]) {
+          is(aAddon, null, "Add-on should no longer be installed");
+          is(aAddon2, null, "Second add-on should no longer be installed");
+
+          open_manager(null, function(aWindow) {
+            gManagerWindow = aWindow;
+            gDocument = gManagerWindow.document;
+            gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+            var list = gDocument.getElementById("addon-list");
+
+            is(gCategoryUtilities.selectedCategory, "extension", "View should have changed to extension");
+
+            var item = get_item_in_list(ID, list);
+            is(item, null, "Should not have found the add-on in the list");
+            item = get_item_in_list(ID2, list);
+            is(item, null, "Should not have found the second add-on in the list");
+
+            run_next_test();
+          });
+        });
+      });
+    });
+  });
+});
+
+// Tests that closing the manager from the search view finalises the uninstall
+// of multiple restartless add-ons
+add_test(function() {
+  var ID = "addon5@tests.mozilla.org";
+  var ID2 = "addon9@tests.mozilla.org";
+  var list = gDocument.getElementById("search-list");
+
+  var searchBox = gManagerWindow.document.getElementById("header-search");
+  searchBox.value = "Uninstall";
+
+  EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+  EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+  wait_for_view_load(gManagerWindow, function() {
+    is(gCategoryUtilities.selectedCategory, "search", "View should have changed to search");
+
+    // Make sure to show local add-ons
+    EventUtils.synthesizeMouseAtCenter(gDocument.getElementById("search-filter-local"), { }, gManagerWindow);
+
+    AddonManager.getAddonByID(ID, function(aAddon) {
+      ok(aAddon.isActive, "Add-on should be active");
+      ok(!(aAddon.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL), "Add-on should not require a restart to uninstall");
+      ok(!(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL), "Add-on should not be pending uninstall");
+
+      var item = get_item_in_list(ID, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      var button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      // Force XBL to apply
+      item.clientTop;
+
+      is(item.getAttribute("pending"), "uninstall", "Add-on should be uninstalling");
+
+      ok(aAddon.pendingOperations & AddonManager.PENDING_UNINSTALL, "Add-on should be pending uninstall");
+      ok(!aAddon.isActive, "Add-on should be inactive");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "restart-btn");
+      isnot(button, null, "Should have a restart button");
+      ok(button.hidden, "Restart button should be hidden");
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "undo-btn");
+      isnot(button, null, "Should have an undo button");
+
+      item = get_item_in_list(ID2, list);
+      isnot(item, null, "Should have found the add-on in the list");
+
+      button = gDocument.getAnonymousElementByAttribute(item, "anonid", "remove-btn");
+      isnot(button, null, "Should have a remove button");
+      ok(!button.disabled, "Button should not be disabled");
+
+      EventUtils.synthesizeMouseAtCenter(button, { }, gManagerWindow);
+
+      close_manager(gManagerWindow, function() {
+        AddonManager.getAddonsByIDs([ID, ID2], function([aAddon, aAddon2]) {
+          is(aAddon, null, "Add-on should no longer be installed");
+          is(aAddon2, null, "Second add-on should no longer be installed");
+
+          open_manager("addons://list/extension", function(aWindow) {
+            gManagerWindow = aWindow;
+            gDocument = gManagerWindow.document;
+            gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+            var list = gDocument.getElementById("search-list");
+            var searchBox = gManagerWindow.document.getElementById("header-search");
+
+            searchBox.value = "Uninstall";
+
+            EventUtils.synthesizeMouseAtCenter(searchBox, { }, gManagerWindow);
+            EventUtils.synthesizeKey("VK_RETURN", { }, gManagerWindow);
+
+            wait_for_view_load(gManagerWindow, function() {
+              is(gCategoryUtilities.selectedCategory, "search", "View should have changed to search");
+
+              var item = get_item_in_list(ID, list);
+              is(item, null, "Should not have found the add-on in the list");
+              item = get_item_in_list(ID2, list);
+              is(item, null, "Should not have found the second add-on in the list");
+
+              run_next_test();
+            });
+          });
+        });
+      });
+    });
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_update.js b/toolkit/mozapps/webextensions/test/browser/browser_update.js
new file mode 100644
index 000000000..09ceb1240
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_update.js
@@ -0,0 +1,53 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that updates correctly flush caches and that new files gets updated.
+
+function test() {
+  requestLongerTimeout(2);
+  waitForExplicitFinish();
+
+  Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+  run_next_test();
+}
+
+// Install a first version
+add_test(function() {
+  AddonManager.getInstallForURL(TESTROOT + "addons/browser_update1_1.xpi",
+                                function(aInstall) {
+    aInstall.install();
+  }, "application/x-xpinstall");
+
+  Services.ppmm.addMessageListener("my-addon-1", function messageListener() {
+    Services.ppmm.removeMessageListener("my-addon-1", messageListener);
+    ok(true, "first version sent frame script message");
+    run_next_test();
+  });
+});
+
+// Update to a second version and verify that content gets updated
+add_test(function() {
+  AddonManager.getInstallForURL(TESTROOT + "addons/browser_update1_2.xpi",
+                                function(aInstall) {
+    aInstall.install();
+  }, "application/x-xpinstall");
+
+  Services.ppmm.addMessageListener("my-addon-2", function messageListener() {
+    Services.ppmm.removeMessageListener("my-addon-2", messageListener);
+    ok(true, "second version sent frame script message");
+    run_next_test();
+  });
+});
+
+// Finally, cleanup things
+add_test(function() {
+  Services.prefs.setBoolPref("xpinstall.signatures.required", true);
+
+  AddonManager.getAddonByID("update1@tests.mozilla.org", function(aAddon) {
+    aAddon.uninstall();
+
+    finish();
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_updateid.js b/toolkit/mozapps/webextensions/test/browser/browser_updateid.js
new file mode 100644
index 000000000..0fe3eeec5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_updateid.js
@@ -0,0 +1,84 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that updates that change an add-on's ID show up correctly in the UI
+
+var gProvider;
+var gManagerWindow;
+var gCategoryUtilities;
+
+var gApp = document.getElementById("bundle_brand").getString("brandShortName");
+
+function test() {
+  waitForExplicitFinish();
+
+  gProvider = new MockProvider();
+
+  gProvider.createAddons([{
+    id: "addon1@tests.mozilla.org",
+    name: "manually updating addon",
+    version: "1.0",
+    applyBackgroundUpdates: AddonManager.AUTOUPDATE_DISABLE
+  }]);
+
+  open_manager("addons://list/extension", function(aWindow) {
+    gManagerWindow = aWindow;
+    gCategoryUtilities = new CategoryUtilities(gManagerWindow);
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+add_test(function() {
+  gCategoryUtilities.openType("extension", function() {
+    gProvider.createInstalls([{
+      name: "updated add-on",
+      existingAddon: gProvider.addons[0],
+      version: "2.0"
+    }]);
+    var newAddon = new MockAddon("addon2@tests.mozilla.org");
+    newAddon.name = "updated add-on";
+    newAddon.version = "2.0";
+    newAddon.pendingOperations = AddonManager.PENDING_INSTALL;
+    gProvider.installs[0]._addonToInstall = newAddon;
+
+    var item = get_addon_element(gManagerWindow, "addon1@tests.mozilla.org");
+    var name = gManagerWindow.document.getAnonymousElementByAttribute(item, "anonid", "name");
+    is(name.value, "manually updating addon", "Should show the old name in the list");
+    get_tooltip_info(item).then(({ name, version }) => {
+      is(name, "manually updating addon", "Should show the old name in the tooltip");
+      is(version, "1.0", "Should still show the old version in the tooltip");
+
+      var update = gManagerWindow.document.getAnonymousElementByAttribute(item, "anonid", "update-btn");
+      is_element_visible(update, "Update button should be visible");
+
+      item = get_addon_element(gManagerWindow, "addon2@tests.mozilla.org");
+      is(item, null, "Should not show the new version in the list");
+
+      run_next_test();
+    });
+  });
+});
+
+add_test(function() {
+  var item = get_addon_element(gManagerWindow, "addon1@tests.mozilla.org");
+  var update = gManagerWindow.document.getAnonymousElementByAttribute(item, "anonid", "update-btn");
+  EventUtils.synthesizeMouseAtCenter(update, { }, gManagerWindow);
+
+  var pending = gManagerWindow.document.getAnonymousElementByAttribute(item, "anonid", "pending");
+  is_element_visible(pending, "Pending message should be visible");
+  is(pending.textContent,
+     get_string("notification.upgrade", "manually updating addon", gApp),
+     "Pending message should be correct");
+
+  item = get_addon_element(gManagerWindow, "addon2@tests.mozilla.org");
+  is(item, null, "Should not show the new version in the list");
+
+  run_next_test();
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_updatessl.js b/toolkit/mozapps/webextensions/test/browser/browser_updatessl.js
new file mode 100644
index 000000000..8b816c927
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_updatessl.js
@@ -0,0 +1,370 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var tempScope = {};
+Components.utils.import("resource://gre/modules/addons/AddonUpdateChecker.jsm", tempScope);
+var AddonUpdateChecker = tempScope.AddonUpdateChecker;
+
+const updaterdf = RELATIVE_DIR + "browser_updatessl.rdf";
+const redirect = RELATIVE_DIR + "redirect.sjs?";
+const SUCCESS = 0;
+const DOWNLOAD_ERROR = AddonUpdateChecker.ERROR_DOWNLOAD_ERROR;
+
+const HTTP = "http://example.com/";
+const HTTPS = "https://example.com/";
+const NOCERT = "https://nocert.example.com/";
+const SELFSIGNED = "https://self-signed.example.com/";
+const UNTRUSTED = "https://untrusted.example.com/";
+const EXPIRED = "https://expired.example.com/";
+
+const PREF_UPDATE_REQUIREBUILTINCERTS = "extensions.update.requireBuiltInCerts";
+
+var gTests = [];
+var gStart = 0;
+var gLast = 0;
+
+var HTTPObserver = {
+  observeActivity: function(aChannel, aType, aSubtype, aTimestamp, aSizeData,
+                            aStringData) {
+    aChannel.QueryInterface(Ci.nsIChannel);
+
+    dump("*** HTTP Activity 0x" + aType.toString(16) + " 0x" + aSubtype.toString(16) +
+         " " + aChannel.URI.spec + "\n");
+  }
+};
+
+function test() {
+  gStart = Date.now();
+  requestLongerTimeout(4);
+  waitForExplicitFinish();
+
+  let observerService = Cc["@mozilla.org/network/http-activity-distributor;1"].
+                        getService(Ci.nsIHttpActivityDistributor);
+  observerService.addObserver(HTTPObserver);
+
+  registerCleanupFunction(function() {
+    observerService.removeObserver(HTTPObserver);
+  });
+
+  run_next_test();
+}
+
+function end_test() {
+  Services.prefs.clearUserPref(PREF_UPDATE_REQUIREBUILTINCERTS);
+
+  var cos = Cc["@mozilla.org/security/certoverride;1"].
+            getService(Ci.nsICertOverrideService);
+  cos.clearValidityOverride("nocert.example.com", -1);
+  cos.clearValidityOverride("self-signed.example.com", -1);
+  cos.clearValidityOverride("untrusted.example.com", -1);
+  cos.clearValidityOverride("expired.example.com", -1);
+
+  info("All tests completed in " + (Date.now() - gStart) + "ms");
+  finish();
+}
+
+function add_update_test(mainURL, redirectURL, expectedStatus) {
+  gTests.push([mainURL, redirectURL, expectedStatus]);
+}
+
+function run_update_tests(callback) {
+  function run_next_update_test() {
+    if (gTests.length == 0) {
+      callback();
+      return;
+    }
+    gLast = Date.now();
+
+    let [mainURL, redirectURL, expectedStatus] = gTests.shift();
+    if (redirectURL) {
+      var url = mainURL + redirect + redirectURL + updaterdf;
+      var message = "Should have seen the right result for an update check redirected from " +
+                    mainURL + " to " + redirectURL;
+    }
+    else {
+      url = mainURL + updaterdf;
+      message = "Should have seen the right result for an update check from " +
+                mainURL;
+    }
+
+    AddonUpdateChecker.checkForUpdates("addon1@tests.mozilla.org",
+                                       null, url, {
+      onUpdateCheckComplete: function(updates) {
+        is(updates.length, 1, "Should be the right number of results");
+        is(SUCCESS, expectedStatus, message);
+        info("Update test ran in " + (Date.now() - gLast) + "ms");
+        run_next_update_test();
+      },
+
+      onUpdateCheckError: function(status) {
+        is(status, expectedStatus, message);
+        info("Update test ran in " + (Date.now() - gLast) + "ms");
+        run_next_update_test();
+      }
+    });
+  }
+
+  run_next_update_test();
+}
+
+// Add overrides for the bad certificates
+function addCertOverrides() {
+  addCertOverride("nocert.example.com", Ci.nsICertOverrideService.ERROR_MISMATCH);
+  addCertOverride("self-signed.example.com", Ci.nsICertOverrideService.ERROR_UNTRUSTED);
+  addCertOverride("untrusted.example.com", Ci.nsICertOverrideService.ERROR_UNTRUSTED);
+  addCertOverride("expired.example.com", Ci.nsICertOverrideService.ERROR_TIME);
+}
+
+// Runs tests with built-in certificates required and no certificate exceptions.
+add_test(function() {
+  // Tests that a simple update.rdf retrieval works as expected.
+  add_update_test(HTTP,       null,       SUCCESS);
+  add_update_test(HTTPS,      null,       DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     null,       DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, null,       DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  null,       DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    null,       DOWNLOAD_ERROR);
+
+  // Tests that redirecting from http to other servers works as expected
+  add_update_test(HTTP,       HTTP,       SUCCESS);
+  add_update_test(HTTP,       HTTPS,      SUCCESS);
+  add_update_test(HTTP,       NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(HTTP,       SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(HTTP,       UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(HTTP,       EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from valid https to other servers works as expected
+  add_update_test(HTTPS,      HTTP,       DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from nocert https to other servers works as expected
+  add_update_test(NOCERT,     HTTP,       DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from self-signed https to other servers works as expected
+  add_update_test(SELFSIGNED, HTTP,       DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from untrusted https to other servers works as expected
+  add_update_test(UNTRUSTED,  HTTP,       DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from expired https to other servers works as expected
+  add_update_test(EXPIRED,    HTTP,       DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    EXPIRED,    DOWNLOAD_ERROR);
+
+  run_update_tests(run_next_test);
+});
+
+// Runs tests without requiring built-in certificates and no certificate
+// exceptions.
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_UPDATE_REQUIREBUILTINCERTS, false);
+
+  // Tests that a simple update.rdf retrieval works as expected.
+  add_update_test(HTTP,       null,       SUCCESS);
+  add_update_test(HTTPS,      null,       SUCCESS);
+  add_update_test(NOCERT,     null,       DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, null,       DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  null,       DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    null,       DOWNLOAD_ERROR);
+
+  // Tests that redirecting from http to other servers works as expected
+  add_update_test(HTTP,       HTTP,       SUCCESS);
+  add_update_test(HTTP,       HTTPS,      SUCCESS);
+  add_update_test(HTTP,       NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(HTTP,       SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(HTTP,       UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(HTTP,       EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from valid https to other servers works as expected
+  add_update_test(HTTPS,      HTTP,       DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      HTTPS,      SUCCESS);
+  add_update_test(HTTPS,      NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from nocert https to other servers works as expected
+  add_update_test(NOCERT,     HTTP,       DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from self-signed https to other servers works as expected
+  add_update_test(SELFSIGNED, HTTP,       DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from untrusted https to other servers works as expected
+  add_update_test(UNTRUSTED,  HTTP,       DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from expired https to other servers works as expected
+  add_update_test(EXPIRED,    HTTP,       DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    EXPIRED,    DOWNLOAD_ERROR);
+
+  run_update_tests(run_next_test);
+});
+
+// Runs tests with built-in certificates required and all certificate exceptions.
+add_test(function() {
+  Services.prefs.clearUserPref(PREF_UPDATE_REQUIREBUILTINCERTS);
+  addCertOverrides();
+
+  // Tests that a simple update.rdf retrieval works as expected.
+  add_update_test(HTTP,       null,       SUCCESS);
+  add_update_test(HTTPS,      null,       DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     null,       DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, null,       DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  null,       DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    null,       DOWNLOAD_ERROR);
+
+  // Tests that redirecting from http to other servers works as expected
+  add_update_test(HTTP,       HTTP,       SUCCESS);
+  add_update_test(HTTP,       HTTPS,      SUCCESS);
+  add_update_test(HTTP,       NOCERT,     SUCCESS);
+  add_update_test(HTTP,       SELFSIGNED, SUCCESS);
+  add_update_test(HTTP,       UNTRUSTED,  SUCCESS);
+  add_update_test(HTTP,       EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from valid https to other servers works as expected
+  add_update_test(HTTPS,      HTTP,       DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from nocert https to other servers works as expected
+  add_update_test(NOCERT,     HTTP,       DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from self-signed https to other servers works as expected
+  add_update_test(SELFSIGNED, HTTP,       DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from untrusted https to other servers works as expected
+  add_update_test(UNTRUSTED,  HTTP,       DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  EXPIRED,    DOWNLOAD_ERROR);
+
+  // Tests that redirecting from expired https to other servers works as expected
+  add_update_test(EXPIRED,    HTTP,       DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    HTTPS,      DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    NOCERT,     DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    SELFSIGNED, DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    UNTRUSTED,  DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    EXPIRED,    DOWNLOAD_ERROR);
+
+  run_update_tests(run_next_test);
+});
+
+// Runs tests without requiring built-in certificates and all certificate
+// exceptions.
+add_test(function() {
+  Services.prefs.setBoolPref(PREF_UPDATE_REQUIREBUILTINCERTS, false);
+
+  // Tests that a simple update.rdf retrieval works as expected.
+  add_update_test(HTTP,       null,       SUCCESS);
+  add_update_test(HTTPS,      null,       SUCCESS);
+  add_update_test(NOCERT,     null,       SUCCESS);
+  add_update_test(SELFSIGNED, null,       SUCCESS);
+  add_update_test(UNTRUSTED,  null,       SUCCESS);
+  add_update_test(EXPIRED,    null,       SUCCESS);
+
+  // Tests that redirecting from http to other servers works as expected
+  add_update_test(HTTP,       HTTP,       SUCCESS);
+  add_update_test(HTTP,       HTTPS,      SUCCESS);
+  add_update_test(HTTP,       NOCERT,     SUCCESS);
+  add_update_test(HTTP,       SELFSIGNED, SUCCESS);
+  add_update_test(HTTP,       UNTRUSTED,  SUCCESS);
+  add_update_test(HTTP,       EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from valid https to other servers works as expected
+  add_update_test(HTTPS,      HTTP,       DOWNLOAD_ERROR);
+  add_update_test(HTTPS,      HTTPS,      SUCCESS);
+  add_update_test(HTTPS,      NOCERT,     SUCCESS);
+  add_update_test(HTTPS,      SELFSIGNED, SUCCESS);
+  add_update_test(HTTPS,      UNTRUSTED,  SUCCESS);
+  add_update_test(HTTPS,      EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from nocert https to other servers works as expected
+  add_update_test(NOCERT,     HTTP,       DOWNLOAD_ERROR);
+  add_update_test(NOCERT,     HTTPS,      SUCCESS);
+  add_update_test(NOCERT,     NOCERT,     SUCCESS);
+  add_update_test(NOCERT,     SELFSIGNED, SUCCESS);
+  add_update_test(NOCERT,     UNTRUSTED,  SUCCESS);
+  add_update_test(NOCERT,     EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from self-signed https to other servers works as expected
+  add_update_test(SELFSIGNED, HTTP,       DOWNLOAD_ERROR);
+  add_update_test(SELFSIGNED, HTTPS,      SUCCESS);
+  add_update_test(SELFSIGNED, NOCERT,     SUCCESS);
+  add_update_test(SELFSIGNED, SELFSIGNED, SUCCESS);
+  add_update_test(SELFSIGNED, UNTRUSTED,  SUCCESS);
+  add_update_test(SELFSIGNED, EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from untrusted https to other servers works as expected
+  add_update_test(UNTRUSTED,  HTTP,       DOWNLOAD_ERROR);
+  add_update_test(UNTRUSTED,  HTTPS,      SUCCESS);
+  add_update_test(UNTRUSTED,  NOCERT,     SUCCESS);
+  add_update_test(UNTRUSTED,  SELFSIGNED, SUCCESS);
+  add_update_test(UNTRUSTED,  UNTRUSTED,  SUCCESS);
+  add_update_test(UNTRUSTED,  EXPIRED,    SUCCESS);
+
+  // Tests that redirecting from expired https to other servers works as expected
+  add_update_test(EXPIRED,    HTTP,       DOWNLOAD_ERROR);
+  add_update_test(EXPIRED,    HTTPS,      SUCCESS);
+  add_update_test(EXPIRED,    NOCERT,     SUCCESS);
+  add_update_test(EXPIRED,    SELFSIGNED, SUCCESS);
+  add_update_test(EXPIRED,    UNTRUSTED,  SUCCESS);
+  add_update_test(EXPIRED,    EXPIRED,    SUCCESS);
+
+  run_update_tests(run_next_test);
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_updatessl.rdf b/toolkit/mozapps/webextensions/test/browser/browser_updatessl.rdf
new file mode 100644
index 000000000..f24573847
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_updatessl.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:addon1@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>20</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_updatessl.rdf^headers^ b/toolkit/mozapps/webextensions/test/browser/browser_updatessl.rdf^headers^
new file mode 100644
index 000000000..2e4f8163b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_updatessl.rdf^headers^
@@ -0,0 +1 @@
+Connection: close
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_webapi.js b/toolkit/mozapps/webextensions/test/browser/browser_webapi.js
new file mode 100644
index 000000000..ca8e41aad
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_webapi.js
@@ -0,0 +1,106 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const TESTPAGE = `${SECURE_TESTROOT}webapi_checkavailable.html`;
+
+Services.prefs.setBoolPref("extensions.webapi.testing", true);
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref("extensions.webapi.testing");
+});
+
+function testWithAPI(task) {
+  return function*() {
+    yield BrowserTestUtils.withNewTab(TESTPAGE, task);
+  }
+}
+
+let gProvider = new MockProvider();
+
+let addons = gProvider.createAddons([{
+  id: "addon1@tests.mozilla.org",
+  name: "Test add-on 1",
+  version: "2.1",
+  description: "Short description",
+  type: "extension",
+  userDisabled: false,
+  isActive: true,
+}, {
+  id: "addon2@tests.mozilla.org",
+  name: "Test add-on 2",
+  version: "5.3.7ab",
+  description: null,
+  type: "theme",
+  userDisabled: false,
+  isActive: false,
+}, {
+  id: "addon3@tests.mozilla.org",
+  name: "Test add-on 3",
+  version: "1",
+  description: "Longer description",
+  type: "extension",
+  userDisabled: true,
+  isActive: false,
+}, {
+  id: "addon4@tests.mozilla.org",
+  name: "Test add-on 4",
+  version: "1",
+  description: "Longer description",
+  type: "extension",
+  userDisabled: false,
+  isActive: true,
+}]);
+
+addons[3].permissions &= ~AddonManager.PERM_CAN_UNINSTALL;
+
+function API_getAddonByID(browser, id) {
+  return ContentTask.spawn(browser, id, function*(id) {
+    let addon = yield content.navigator.mozAddonManager.getAddonByID(id);
+
+    // We can't send native objects back so clone its properties.
+    let result = {};
+    for (let prop in addon) {
+      result[prop] = addon[prop];
+    }
+
+    return result;
+  });
+}
+
+add_task(testWithAPI(function*(browser) {
+  function compareObjects(web, real) {
+    for (let prop of Object.keys(web)) {
+      let webVal = web[prop];
+      let realVal = real[prop];
+
+      switch (prop) {
+        case "isEnabled":
+          realVal = !real.userDisabled;
+          break;
+
+        case "canUninstall":
+          realVal = Boolean(real.permissions & AddonManager.PERM_CAN_UNINSTALL);
+          break;
+      }
+
+      // null and undefined don't compare well so stringify them first
+      if (realVal === null || realVal === undefined) {
+        realVal = `${realVal}`;
+        webVal = `${webVal}`;
+      }
+
+      is(webVal, realVal, `Property ${prop} should have the right value in add-on ${real.id}`);
+    }
+  }
+
+  let [a1, a2, a3] = yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                                               "addon2@tests.mozilla.org",
+                                               "addon3@tests.mozilla.org"]);
+  let w1 = yield API_getAddonByID(browser, "addon1@tests.mozilla.org");
+  let w2 = yield API_getAddonByID(browser, "addon2@tests.mozilla.org");
+  let w3 = yield API_getAddonByID(browser, "addon3@tests.mozilla.org");
+
+  compareObjects(w1, a1);
+  compareObjects(w2, a2);
+  compareObjects(w3, a3);
+}));
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_webapi_access.js b/toolkit/mozapps/webextensions/test/browser/browser_webapi_access.js
new file mode 100644
index 000000000..f4b1dc745
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_webapi_access.js
@@ -0,0 +1,127 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref("extensions.webapi.testing");
+});
+
+function check_frame_availability(browser) {
+  return ContentTask.spawn(browser, null, function*() {
+    let frame = content.document.getElementById("frame");
+    return frame.contentWindow.document.getElementById("result").textContent == "true";
+  });
+}
+
+function check_availability(browser) {
+  return ContentTask.spawn(browser, null, function*() {
+    return content.document.getElementById("result").textContent == "true";
+  });
+}
+
+// Test that initially the API isn't available in the test domain
+add_task(function* test_not_available() {
+  yield BrowserTestUtils.withNewTab(`${SECURE_TESTROOT}webapi_checkavailable.html`,
+    function* test_not_available(browser) {
+      let available = yield check_availability(browser);
+      ok(!available, "API should not be available.");
+    })
+});
+
+// Test that with testing on the API is available in the test domain
+add_task(function* test_available() {
+  Services.prefs.setBoolPref("extensions.webapi.testing", true);
+
+  yield BrowserTestUtils.withNewTab(`${SECURE_TESTROOT}webapi_checkavailable.html`,
+    function* test_not_available(browser) {
+      let available = yield check_availability(browser);
+      ok(available, "API should be available.");
+    })
+});
+
+// Test that the API is not available in a bad domain
+add_task(function* test_bad_domain() {
+  yield BrowserTestUtils.withNewTab(`${SECURE_TESTROOT2}webapi_checkavailable.html`,
+    function* test_not_available(browser) {
+      let available = yield check_availability(browser);
+      ok(!available, "API should not be available.");
+    })
+});
+
+// Test that the API is only available in https sites
+add_task(function* test_not_available_http() {
+  yield BrowserTestUtils.withNewTab(`${TESTROOT}webapi_checkavailable.html`,
+    function* test_not_available(browser) {
+      let available = yield check_availability(browser);
+      ok(!available, "API should not be available.");
+    })
+});
+
+// Test that the API is available when in a frame of the test domain
+add_task(function* test_available_framed() {
+  yield BrowserTestUtils.withNewTab(`${SECURE_TESTROOT}webapi_checkframed.html`,
+    function* test_available(browser) {
+      let available = yield check_frame_availability(browser);
+      ok(available, "API should be available.");
+    })
+});
+
+// Test that if the external frame is http then the inner frame doesn't have
+// the API
+add_task(function* test_not_available_http_framed() {
+  yield BrowserTestUtils.withNewTab(`${TESTROOT}webapi_checkframed.html`,
+    function* test_not_available(browser) {
+      let available = yield check_frame_availability(browser);
+      ok(!available, "API should not be available.");
+    })
+});
+
+// Test that if the external frame is a bad domain then the inner frame doesn't
+// have the API
+add_task(function* test_not_available_framed() {
+  yield BrowserTestUtils.withNewTab(`${SECURE_TESTROOT2}webapi_checkframed.html`,
+    function* test_not_available(browser) {
+      let available = yield check_frame_availability(browser);
+      ok(!available, "API should not be available.");
+    })
+});
+
+// Test that a window navigated to a bad domain doesn't allow access to the API
+add_task(function* test_navigated_window() {
+  yield BrowserTestUtils.withNewTab(`${SECURE_TESTROOT2}webapi_checknavigatedwindow.html`,
+    function* test_available(browser) {
+      let tabPromise = BrowserTestUtils.waitForNewTab(gBrowser);
+
+      yield ContentTask.spawn(browser, null, function*() {
+        yield content.wrappedJSObject.openWindow();
+      });
+
+      // Should be a new tab open
+      let tab = yield tabPromise;
+      let loadPromise = BrowserTestUtils.browserLoaded(gBrowser.getBrowserForTab(tab));
+
+      ContentTask.spawn(browser, null, function*() {
+        content.wrappedJSObject.navigate();
+      });
+
+      yield loadPromise;
+
+      let available = yield ContentTask.spawn(browser, null, function*() {
+        return content.wrappedJSObject.check();
+      });
+
+      ok(!available, "API should not be available.");
+
+      gBrowser.removeTab(tab);
+    })
+});
+
+// Check that if a page is embedded in a chrome content UI that it can still
+// access the API.
+add_task(function* test_chrome_frame() {
+  yield BrowserTestUtils.withNewTab(`${CHROMEROOT}webapi_checkchromeframe.xul`,
+    function* test_available(browser) {
+      let available = yield check_frame_availability(browser);
+      ok(available, "API should be available.");
+    })
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_webapi_addon_listener.js b/toolkit/mozapps/webextensions/test/browser/browser_webapi_addon_listener.js
new file mode 100644
index 000000000..b8049f13c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_webapi_addon_listener.js
@@ -0,0 +1,174 @@
+const TESTPAGE = `${SECURE_TESTROOT}webapi_addon_listener.html`;
+
+Services.prefs.setBoolPref("extensions.webapi.testing", true);
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref("extensions.webapi.testing");
+});
+
+
+function* getListenerEvents(browser) {
+  let result = yield ContentTask.spawn(browser, null, function*() {
+    return content.document.getElementById("result").textContent;
+  });
+
+  return result.split('\n').map(JSON.parse);
+}
+
+const RESTART_ID = "restart@tests.mozilla.org";
+const RESTART_DISABLED_ID = "restart_disabled@tests.mozilla.org";
+const RESTARTLESS_ID = "restartless@tests.mozilla.org";
+const INSTALL_ID = "install@tests.mozilla.org";
+const CANCEL_ID = "cancel@tests.mozilla.org";
+
+let provider = new MockProvider(false);
+provider.createAddons([
+  {
+    id: RESTART_ID,
+    name: "Add-on that requires restart",
+  },
+  {
+    id: RESTART_DISABLED_ID,
+    name: "Disabled add-on that requires restart",
+    userDisabled: true,
+  },
+  {
+    id: RESTARTLESS_ID,
+    name: "Restartless add-on",
+    operationsRequiringRestart: AddonManager.OP_NEED_RESTART_NONE,
+  },
+  {
+    id: CANCEL_ID,
+    name: "Add-on for uninstall cancel",
+  },
+]);
+
+// Test disable of add-on requiring restart
+add_task(function* test_disable() {
+  yield BrowserTestUtils.withNewTab(TESTPAGE, function*(browser) {
+    let addon = yield promiseAddonByID(RESTART_ID);
+    is(addon.userDisabled, false, "addon is enabled");
+
+    // disable it
+    addon.userDisabled = true;
+    is(addon.userDisabled, true, "addon was disabled successfully");
+
+    let events = yield getListenerEvents(browser);
+
+    // Just a single onDisabling since restart is needed to complete
+    let expected = [
+      {id: RESTART_ID, needsRestart: true, event: "onDisabling"},
+    ];
+    Assert.deepEqual(events, expected, "Got expected disable event");
+  });
+});
+
+// Test enable of add-on requiring restart
+add_task(function* test_enable() {
+  yield BrowserTestUtils.withNewTab(TESTPAGE, function*(browser) {
+    let addon = yield promiseAddonByID(RESTART_DISABLED_ID);
+    is(addon.userDisabled, true, "addon is disabled");
+
+    // enable it
+    addon.userDisabled = false;
+    is(addon.userDisabled, false, "addon was enabled successfully");
+
+    let events = yield getListenerEvents(browser);
+
+    // Just a single onEnabling since restart is needed to complete
+    let expected = [
+      {id: RESTART_DISABLED_ID, needsRestart: true, event: "onEnabling"},
+    ];
+    Assert.deepEqual(events, expected, "Got expected enable event");
+  });
+});
+
+// Test enable/disable events for restartless
+add_task(function* test_restartless() {
+  yield BrowserTestUtils.withNewTab(TESTPAGE, function*(browser) {
+    let addon = yield promiseAddonByID(RESTARTLESS_ID);
+    is(addon.userDisabled, false, "addon is enabled");
+
+    // disable it
+    addon.userDisabled = true;
+    is(addon.userDisabled, true, "addon was disabled successfully");
+
+    // re-enable it
+    addon.userDisabled = false;
+    is(addon.userDisabled, false, "addon was re-enabled successfuly");
+
+    let events = yield getListenerEvents(browser);
+    let expected = [
+      {id: RESTARTLESS_ID, needsRestart: false, event: "onDisabling"},
+      {id: RESTARTLESS_ID, needsRestart: false, event: "onDisabled"},
+      {id: RESTARTLESS_ID, needsRestart: false, event: "onEnabling"},
+      {id: RESTARTLESS_ID, needsRestart: false, event: "onEnabled"},
+    ];
+    Assert.deepEqual(events, expected, "Got expected disable/enable events");
+  });
+});
+
+// Test install events
+add_task(function* test_restartless() {
+  yield BrowserTestUtils.withNewTab(TESTPAGE, function*(browser) {
+    let addon = new MockAddon(INSTALL_ID, "installme", null,
+                              AddonManager.OP_NEED_RESTART_NONE);
+    let install = new MockInstall(null, null, addon);
+
+    let installPromise = new Promise(resolve => {
+      install.addTestListener({
+        onInstallEnded: resolve,
+      });
+    });
+
+    provider.addInstall(install);
+    install.install();
+
+    yield installPromise;
+
+    let events = yield getListenerEvents(browser);
+    let expected = [
+      {id: INSTALL_ID, needsRestart: false, event: "onInstalling"},
+      {id: INSTALL_ID, needsRestart: false, event: "onInstalled"},
+    ];
+    Assert.deepEqual(events, expected, "Got expected install events");
+  });
+});
+
+// Test uninstall
+add_task(function* test_uninstall() {
+  yield BrowserTestUtils.withNewTab(TESTPAGE, function*(browser) {
+    let addon = yield promiseAddonByID(RESTARTLESS_ID);
+    isnot(addon, null, "Found add-on for uninstall");
+
+    addon.uninstall();
+
+    let events = yield getListenerEvents(browser);
+    let expected = [
+      {id: RESTARTLESS_ID, needsRestart: false, event: "onUninstalling"},
+      {id: RESTARTLESS_ID, needsRestart: false, event: "onUninstalled"},
+    ];
+    Assert.deepEqual(events, expected, "Got expected uninstall events");
+  });
+});
+
+// Test cancel of uninstall.
+add_task(function* test_cancel() {
+  yield BrowserTestUtils.withNewTab(TESTPAGE, function*(browser) {
+    let addon = yield promiseAddonByID(CANCEL_ID);
+    isnot(addon, null, "Found add-on for cancelling uninstall");
+
+    addon.uninstall();
+
+    let events = yield getListenerEvents(browser);
+    let expected = [
+      {id: CANCEL_ID, needsRestart: true, event: "onUninstalling"},
+    ];
+    Assert.deepEqual(events, expected, "Got expected uninstalling event");
+
+    addon.cancelUninstall();
+    events = yield getListenerEvents(browser);
+    expected.push({id: CANCEL_ID, needsRestart: false, event: "onOperationCancelled"});
+    Assert.deepEqual(events, expected, "Got expected cancel event");
+  });
+});
+
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_webapi_enable.js b/toolkit/mozapps/webextensions/test/browser/browser_webapi_enable.js
new file mode 100644
index 000000000..27d8029c5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_webapi_enable.js
@@ -0,0 +1,62 @@
+const TESTPAGE = `${SECURE_TESTROOT}webapi_addon_listener.html`;
+
+Services.prefs.setBoolPref("extensions.webapi.testing", true);
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref("extensions.webapi.testing");
+});
+
+function* getListenerEvents(browser) {
+  let result = yield ContentTask.spawn(browser, null, function*() {
+    return content.document.getElementById("result").textContent;
+  });
+
+  return result.split('\n').map(JSON.parse);
+}
+
+const ID = "test@tests.mozilla.org";
+
+let provider = new MockProvider(false);
+provider.createAddons([
+  {
+    id: ID,
+    name: "Test add-on",
+    operationsRequiringRestart: AddonManager.OP_NEED_RESTART_NONE,
+  },
+]);
+
+// Test disable and enable from content
+add_task(function* () {
+  yield BrowserTestUtils.withNewTab(TESTPAGE, function*(browser) {
+    let addon = yield promiseAddonByID(ID);
+    isnot(addon, null, "Test addon exists");
+    is(addon.userDisabled, false, "addon is enabled");
+
+    // Disable the addon from content.
+    yield ContentTask.spawn(browser, null, function* () {
+      return content.navigator.mozAddonManager
+        .getAddonByID("test@tests.mozilla.org")
+        .then(addon => { addon.setEnabled(false); });
+    });
+
+    let events = yield getListenerEvents(browser);
+    let expected = [
+      {id: ID, needsRestart: false, event: "onDisabling"},
+      {id: ID, needsRestart: false, event: "onDisabled"},
+    ];
+    Assert.deepEqual(events, expected, "Got expected disable events");
+
+    // Enable the addon from content.
+    yield ContentTask.spawn(browser, null, function* () {
+      return content.navigator.mozAddonManager
+        .getAddonByID("test@tests.mozilla.org")
+        .then(addon => { addon.setEnabled(true); });
+    });
+
+    events = yield getListenerEvents(browser);
+    expected = expected.concat([
+      {id: ID, needsRestart: false, event: "onEnabling"},
+      {id: ID, needsRestart: false, event: "onEnabled"},
+    ]);
+    Assert.deepEqual(events, expected, "Got expected enable events");
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_webapi_install.js b/toolkit/mozapps/webextensions/test/browser/browser_webapi_install.js
new file mode 100644
index 000000000..bc31c2331
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_webapi_install.js
@@ -0,0 +1,311 @@
+const TESTPAGE = `${SECURE_TESTROOT}webapi_checkavailable.html`;
+const XPI_URL = `${SECURE_TESTROOT}addons/browser_webapi_install.xpi`;
+const XPI_SHA = "sha256:d4bab17ff9ba5f635e97c84021f4c527c502250d62ab7f6e6c9e8ee28822f772";
+
+const ID = "webapi_install@tests.mozilla.org";
+// eh, would be good to just stat the real file instead of this...
+const XPI_LEN = 4782;
+
+function waitForClear() {
+  const MSG = "WebAPICleanup";
+  return new Promise(resolve => {
+    let listener = {
+      receiveMessage: function(msg) {
+        if (msg.name == MSG) {
+          Services.mm.removeMessageListener(MSG, listener);
+          resolve();
+        }
+      }
+    };
+
+    Services.mm.addMessageListener(MSG, listener, true);
+  });
+}
+
+add_task(function* setup() {
+  yield SpecialPowers.pushPrefEnv({
+    set: [["extensions.webapi.testing", true],
+          ["extensions.install.requireBuiltInCerts", false]],
+  });
+  info("added preferences");
+});
+
+// Wrapper around a common task to run in the content process to test
+// the mozAddonManager API.  Takes a URL for the XPI to install and an
+// array of steps, each of which can either be an action to take
+// (i.e., start or cancel the install) or an install event to wait for.
+// Steps that look for a specific event may also include a "props" property
+// with properties that the AddonInstall object is expected to have when
+// that event is triggered.
+function* testInstall(browser, args, steps, description) {
+  let success = yield ContentTask.spawn(browser, {args, steps}, function* (opts) {
+    let { args, steps } = opts;
+    let install = yield content.navigator.mozAddonManager.createInstall(args);
+    if (!install) {
+      yield Promise.reject("createInstall() did not return an install object");
+    }
+
+    // Check that the initial state of the AddonInstall is sane.
+    if (install.state != "STATE_AVAILABLE") {
+      yield Promise.reject("new install should be in STATE_AVAILABLE");
+    }
+    if (install.error != null) {
+      yield Promise.reject("new install should have null error");
+    }
+
+    const events = [
+      "onDownloadStarted",
+      "onDownloadProgress",
+      "onDownloadEnded",
+      "onDownloadCancelled",
+      "onDownloadFailed",
+      "onInstallStarted",
+      "onInstallEnded",
+      "onInstallCancelled",
+      "onInstallFailed",
+    ];
+    let eventWaiter = null;
+    let receivedEvents = [];
+    let prevEvent = null;
+    events.forEach(event => {
+      install.addEventListener(event, e => {
+        receivedEvents.push({
+          event,
+          state: install.state,
+          error: install.error,
+          progress: install.progress,
+          maxProgress: install.maxProgress,
+        });
+        if (eventWaiter) {
+          eventWaiter();
+        }
+      });
+    });
+
+    // Returns a promise that is resolved when the given event occurs
+    // or rejects if a different event comes first or if props is supplied
+    // and properties on the AddonInstall don't match those in props.
+    function expectEvent(event, props) {
+      return new Promise((resolve, reject) => {
+        function check() {
+          let received = receivedEvents.shift();
+          // Skip any repeated onDownloadProgress events.
+          while (received &&
+                 received.event == prevEvent &&
+                 prevEvent == "onDownloadProgress") {
+            received = receivedEvents.shift();
+          }
+          // Wait for more events if we skipped all there were.
+          if (!received) {
+            eventWaiter = () => {
+              eventWaiter = null;
+              check();
+            }
+            return;
+          }
+          prevEvent = received.event;
+          if (received.event != event) {
+            let err = new Error(`expected ${event} but got ${received.event}`);
+            reject(err);
+          }
+          if (props) {
+            for (let key of Object.keys(props)) {
+              if (received[key] != props[key]) {
+                throw new Error(`AddonInstall property ${key} was ${received[key]} but expected ${props[key]}`);
+              }
+            }
+          }
+          resolve();
+        }
+        check();
+      });
+    }
+
+    while (steps.length > 0) {
+      let nextStep = steps.shift();
+      if (nextStep.action) {
+        if (nextStep.action == "install") {
+          yield install.install();
+        } else if (nextStep.action == "cancel") {
+          yield install.cancel();
+        } else {
+          throw new Error(`unknown action ${nextStep.action}`);
+        }
+      } else {
+        yield expectEvent(nextStep.event, nextStep.props);
+      }
+    }
+
+    return true;
+  });
+
+  is(success, true, description);
+}
+
+function makeInstallTest(task) {
+  return function*() {
+    // withNewTab() will close the test tab before returning, at which point
+    // the cleanup event will come from the content process.  We need to see
+    // that event but don't want to race to install a listener for it after
+    // the tab is closed.  So set up the listener now but don't yield the
+    // listening promise until below.
+    let clearPromise = waitForClear();
+
+    yield BrowserTestUtils.withNewTab(TESTPAGE, task);
+
+    yield clearPromise;
+    is(AddonManager.webAPI.installs.size, 0, "AddonInstall was cleaned up");
+  };
+}
+
+function makeRegularTest(options, what) {
+  return makeInstallTest(function* (browser) {
+    let steps = [
+      {action: "install"},
+      {
+        event: "onDownloadStarted",
+        props: {state: "STATE_DOWNLOADING"},
+      },
+      {
+        event: "onDownloadProgress",
+        props: {maxProgress: XPI_LEN},
+      },
+      {
+        event: "onDownloadEnded",
+        props: {
+          state: "STATE_DOWNLOADED",
+          progress: XPI_LEN,
+          maxProgress: XPI_LEN,
+        },
+      },
+      {
+        event: "onInstallStarted",
+        props: {state: "STATE_INSTALLING"},
+      },
+      {
+        event: "onInstallEnded",
+        props: {state: "STATE_INSTALLED"},
+      },
+    ];
+
+    yield testInstall(browser, options, steps, what);
+
+    let version = Services.prefs.getIntPref("webapitest.active_version");
+    is(version, 1, "the install really did work");
+
+    // Sanity check to ensure that the test in makeInstallTest() that
+    // installs.size == 0 means we actually did clean up.
+    ok(AddonManager.webAPI.installs.size > 0, "webAPI is tracking the AddonInstall");
+
+    let addons = yield promiseAddonsByIDs([ID]);
+    isnot(addons[0], null, "Found the addon");
+
+    yield addons[0].uninstall();
+
+    addons = yield promiseAddonsByIDs([ID]);
+    is(addons[0], null, "Addon was uninstalled");
+  });
+}
+
+add_task(makeRegularTest({url: XPI_URL}, "a basic install works"));
+add_task(makeRegularTest({url: XPI_URL, hash: null}, "install with hash=null works"));
+add_task(makeRegularTest({url: XPI_URL, hash: ""}, "install with empty string for hash works"));
+add_task(makeRegularTest({url: XPI_URL, hash: XPI_SHA}, "install with hash works"));
+
+add_task(makeInstallTest(function* (browser) {
+  let steps = [
+    {action: "cancel"},
+    {
+      event: "onDownloadCancelled",
+      props: {
+        state: "STATE_CANCELLED",
+        error: null,
+      },
+    }
+  ];
+
+  yield testInstall(browser, {url: XPI_URL}, steps, "canceling an install works");
+
+  let addons = yield promiseAddonsByIDs([ID]);
+  is(addons[0], null, "The addon was not installed");
+
+  ok(AddonManager.webAPI.installs.size > 0, "webAPI is tracking the AddonInstall");
+}));
+
+add_task(makeInstallTest(function* (browser) {
+  let steps = [
+    {action: "install"},
+    {
+      event: "onDownloadStarted",
+      props: {state: "STATE_DOWNLOADING"},
+    },
+    {event: "onDownloadProgress"},
+    {
+      event: "onDownloadFailed",
+      props: {
+        state: "STATE_DOWNLOAD_FAILED",
+        error: "ERROR_NETWORK_FAILURE",
+      },
+    }
+  ];
+
+  yield testInstall(browser, {url: XPI_URL + "bogus"}, steps, "install of a bad url fails");
+
+  let addons = yield promiseAddonsByIDs([ID]);
+  is(addons[0], null, "The addon was not installed");
+
+  ok(AddonManager.webAPI.installs.size > 0, "webAPI is tracking the AddonInstall");
+}));
+
+add_task(makeInstallTest(function* (browser) {
+  let steps = [
+    {action: "install"},
+    {
+      event: "onDownloadStarted",
+      props: {state: "STATE_DOWNLOADING"},
+    },
+    {event: "onDownloadProgress"},
+    {
+      event: "onDownloadFailed",
+      props: {
+        state: "STATE_DOWNLOAD_FAILED",
+        error: "ERROR_INCORRECT_HASH",
+      },
+    }
+  ];
+
+  yield testInstall(browser, {url: XPI_URL, hash: "sha256:bogus"}, steps, "install with bad hash fails");
+
+  let addons = yield promiseAddonsByIDs([ID]);
+  is(addons[0], null, "The addon was not installed");
+
+  ok(AddonManager.webAPI.installs.size > 0, "webAPI is tracking the AddonInstall");
+}));
+
+add_task(function* test_permissions() {
+  function testBadUrl(url, pattern, successMessage) {
+    return BrowserTestUtils.withNewTab(TESTPAGE, function* (browser) {
+      let result = yield ContentTask.spawn(browser, {url, pattern}, function (opts) {
+        return new Promise(resolve => {
+          content.navigator.mozAddonManager.createInstall({url: opts.url})
+            .then(() => {
+              resolve({success: false, message: "createInstall should not have succeeded"});
+            }, err => {
+              if (err.message.match(new RegExp(opts.pattern))) {
+                resolve({success: true});
+              }
+              resolve({success: false, message: `Wrong error message: ${err.message}`});
+            });
+        });
+      });
+      is(result.success, true, result.message || successMessage);
+    });
+  }
+
+  yield testBadUrl("i am not a url", "NS_ERROR_MALFORMED_URI",
+                   "Installing from an unparseable URL fails");
+
+  yield testBadUrl("https://addons.not-really-mozilla.org/impostor.xpi",
+                   "not permitted",
+                   "Installing from non-approved URL fails");
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_webapi_uninstall.js b/toolkit/mozapps/webextensions/test/browser/browser_webapi_uninstall.js
new file mode 100644
index 000000000..724f6fefe
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_webapi_uninstall.js
@@ -0,0 +1,51 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const TESTPAGE = `${SECURE_TESTROOT}webapi_checkavailable.html`;
+
+Services.prefs.setBoolPref("extensions.webapi.testing", true);
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref("extensions.webapi.testing");
+});
+
+function testWithAPI(task) {
+  return function*() {
+    yield BrowserTestUtils.withNewTab(TESTPAGE, task);
+  }
+}
+
+function API_uninstallByID(browser, id) {
+  return ContentTask.spawn(browser, id, function*(id) {
+    let addon = yield content.navigator.mozAddonManager.getAddonByID(id);
+
+    let result = yield addon.uninstall();
+    return result;
+  });
+}
+
+add_task(testWithAPI(function*(browser) {
+  const ID1 = "addon1@tests.mozilla.org";
+  const ID2 = "addon2@tests.mozilla.org";
+
+  let provider = new MockProvider();
+
+  provider.addAddon(new MockAddon(ID1, "Test add-on 1", "extension", 0));
+  provider.addAddon(new MockAddon(ID2, "Test add-on 2", "extension", 0));
+
+  let [a1, a2] = yield promiseAddonsByIDs([ID1, ID2]);
+  isnot(a1, null, "addon1 is installed");
+  isnot(a2, null, "addon2 is installed");
+
+  let result = yield API_uninstallByID(browser, ID1);
+  is(result, true, "uninstall of addon1 succeeded");
+
+  [a1, a2] = yield promiseAddonsByIDs([ID1, ID2]);
+  is(a1, null, "addon1 is uninstalled");
+  isnot(a2, null, "addon2 is still installed");
+
+  result = yield API_uninstallByID(browser, ID2);
+  is(result, true, "uninstall of addon2 succeeded");
+  [a2] = yield promiseAddonsByIDs([ID2]);
+  is(a2, null, "addon2 is uninstalled");
+}));
diff --git a/toolkit/mozapps/webextensions/test/browser/browser_webext_options.js b/toolkit/mozapps/webextensions/test/browser/browser_webext_options.js
new file mode 100644
index 000000000..b13213f0b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/browser_webext_options.js
@@ -0,0 +1,70 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Wrapper to run a test that consists of:
+//  1. opening the add-ons manager viewing the list of extensions
+//  2. installing an extension (using the provider installer callable)
+//  3. opening the preferences panel for the new extension and verifying
+//     that it opens cleanly
+function* runTest(installer) {
+  let mgrWindow = yield open_manager("addons://list/extension");
+
+  let {addon, id} = yield* installer();
+  isnot(addon, null, "Extension is installed");
+
+  let element = get_addon_element(mgrWindow, id);
+  element.parentNode.ensureElementIsVisible(element);
+
+  let button = mgrWindow.document.getAnonymousElementByAttribute(element, "anonid", "preferences-btn");
+  is_element_visible(button, "Preferences button should be visible");
+
+  EventUtils.synthesizeMouseAtCenter(button, {clickCount: 1}, mgrWindow);
+
+  yield TestUtils.topicObserved(AddonManager.OPTIONS_NOTIFICATION_DISPLAYED,
+                                (subject, data) => data == id);
+
+  is(mgrWindow.gViewController.currentViewId,
+     `addons://detail/${encodeURIComponent(id)}/preferences`,
+     "Current view should scroll to preferences");
+
+  var browser = mgrWindow.document.querySelector("#detail-grid > rows > .inline-options-browser");
+  var rows = browser.parentNode;
+
+  ok(browser, "Grid should have a browser child");
+  is(browser.localName, "browser", "Grid should have a browser child");
+  is(browser.currentURI.spec, element.mAddon.optionsURL, "Browser has the expected options URL loaded")
+
+  is(browser.clientWidth, rows.clientWidth,
+     "Browser should be the same width as its parent node");
+
+  button = mgrWindow.document.getElementById("detail-prefs-btn");
+  is_element_hidden(button, "Preferences button should not be visible");
+
+  yield close_manager(mgrWindow);
+
+  addon.uninstall();
+}
+
+// Test that deferred handling of optionsURL works for a signed webextension
+add_task(function* test_options_signed() {
+  yield* runTest(function*() {
+    // The extension in-tree is signed with this ID:
+    const ID = "{9792932b-32b2-4567-998c-e7bf6c4c5e35}";
+
+    yield install_addon("addons/options_signed.xpi");
+    let addon = yield promiseAddonByID(ID);
+
+    return {addon, id: ID};
+  });
+});
+
+add_task(function* test_options_temporary() {
+  yield* runTest(function*() {
+    let dir = get_addon_file_url("options_signed").file;
+    let addon = yield AddonManager.installTemporaryAddon(dir);
+    isnot(addon, null, "Extension is installed (temporarily)");
+
+    return {addon, id: addon.id};
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/browser/cancelCompatCheck.sjs b/toolkit/mozapps/webextensions/test/browser/cancelCompatCheck.sjs
new file mode 100644
index 000000000..38bc25d08
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/cancelCompatCheck.sjs
@@ -0,0 +1,43 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Delay before responding to an HTTP call attempting to read
+// an addon update RDF file
+
+function handleRequest(req, resp) {
+  resp.processAsync();
+  resp.setHeader("Cache-Control", "no-cache, no-store", false);
+  resp.setHeader("Content-Type", "text/xml;charset=utf-8", false);
+
+  let file = null;
+  getObjectState("SERVER_ROOT", function(serverRoot)
+  {
+    file = serverRoot.getFile("browser/toolkit/mozapps/extensions/test/browser/browser_bug557956.rdf");
+  });
+  dump("*** cancelCompatCheck.sjs: " + file.path + "\n");
+  let fstream = Components.classes["@mozilla.org/network/file-input-stream;1"].
+                  createInstance(Components.interfaces.nsIFileInputStream);
+  fstream.init(file, -1, 0, 0);
+  let cstream = null;
+  cstream = Components.classes["@mozilla.org/intl/converter-input-stream;1"].
+          createInstance(Components.interfaces.nsIConverterInputStream);
+  cstream.init(fstream, "UTF-8", 0, 0);
+
+  // The delay can be passed on the query string
+  let delay = req.queryString + 0;
+
+  timer = Components.classes["@mozilla.org/timer;1"].
+          createInstance(Components.interfaces.nsITimer);
+  timer.init(function sendFile() {
+    dump("cancelCompatCheck: starting to send file\n");
+    let str = {};
+    let read = 0;
+    do {
+      // read as much as we can and put it in str.value
+      read = cstream.readString(0xffffffff, str);
+      resp.write(str.value);
+    } while (read != 0);
+    cstream.close();
+    resp.finish();
+  }, delay, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/discovery.html b/toolkit/mozapps/webextensions/test/browser/discovery.html
new file mode 100644
index 000000000..72f4fe374
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/discovery.html
@@ -0,0 +1,10 @@
+<html>
+<body>
+  <h1>Test page for the discovery pane</h1>
+  <p><a id="link-normal" href="https://example.com/browser/toolkit/mozapps/extensions/test/browser/discovery.html">Load normal</a></p>
+  <p><a id="link-http" href="http://example.com/browser/toolkit/mozapps/extensions/test/browser/discovery.html">Load insecure</a></p>
+  <p><a id="link-domain" href="https://test1.example.com/browser/toolkit/mozapps/extensions/test/browser/discovery.html">Load other domain</a></p>
+  <p><a id="link-bad" href="https://example.com/browser/toolkit/mozapps/extensions/test/browser/foo.html">Load missing page</a></p>
+  <p><a id="link-good" href="https://example.com/browser/toolkit/mozapps/extensions/test/browser/releaseNotes.xhtml">Load other page</a></p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/browser/discovery_frame.html b/toolkit/mozapps/webextensions/test/browser/discovery_frame.html
new file mode 100644
index 000000000..8ec722812
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/discovery_frame.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+
+<html>
+<body>
+<iframe id="frame" width="100%" height="100%" src="https://example.com/browser/toolkit/mozapps/extensions/test/browser/discovery_install.html"></iframe>
+</body>
diff --git a/toolkit/mozapps/webextensions/test/browser/discovery_install.html b/toolkit/mozapps/webextensions/test/browser/discovery_install.html
new file mode 100644
index 000000000..c6499ec03
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/discovery_install.html
@@ -0,0 +1,19 @@
+<html>
+<head>
+<script type="text/javascript">
+/* globals InstallTrigger */
+function install() {
+  InstallTrigger.install({
+    "Test Add-on": {
+      URL: "https://example.com/browser/toolkit/mozapps/extensions/test/xpinstall/amosigned.xpi"
+    }
+  });
+}
+</script>
+</head>
+<body>
+  <h1>Test page for the discovery pane</h1>
+  <p><a id="install-direct" href="https://example.com/browser/toolkit/mozapps/extensions/test/xpinstall/amosigned.xpi">Direct install</a></p>
+  <p><a id="install-js" href="javascript:install()">JS install</a></p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/browser/head.js b/toolkit/mozapps/webextensions/test/browser/head.js
new file mode 100644
index 000000000..5a749099d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/head.js
@@ -0,0 +1,1468 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+/* globals end_test*/
+
+Components.utils.import("resource://gre/modules/NetUtil.jsm");
+
+var tmp = {};
+Components.utils.import("resource://gre/modules/AddonManager.jsm", tmp);
+Components.utils.import("resource://gre/modules/Log.jsm", tmp);
+var AddonManager = tmp.AddonManager;
+var AddonManagerPrivate = tmp.AddonManagerPrivate;
+var Log = tmp.Log;
+
+var pathParts = gTestPath.split("/");
+// Drop the test filename
+pathParts.splice(pathParts.length - 1, pathParts.length);
+
+var gTestInWindow = /-window$/.test(pathParts[pathParts.length - 1]);
+
+// Drop the UI type
+if (gTestInWindow) {
+  pathParts.splice(pathParts.length - 1, pathParts.length);
+}
+
+const RELATIVE_DIR = pathParts.slice(4).join("/") + "/";
+
+const TESTROOT = "http://example.com/" + RELATIVE_DIR;
+const SECURE_TESTROOT = "https://example.com/" + RELATIVE_DIR;
+const TESTROOT2 = "http://example.org/" + RELATIVE_DIR;
+const SECURE_TESTROOT2 = "https://example.org/" + RELATIVE_DIR;
+const CHROMEROOT = pathParts.join("/") + "/";
+const PREF_DISCOVERURL = "extensions.webservice.discoverURL";
+const PREF_DISCOVER_ENABLED = "extensions.getAddons.showPane";
+const PREF_XPI_ENABLED = "xpinstall.enabled";
+const PREF_UPDATEURL = "extensions.update.url";
+const PREF_GETADDONS_CACHE_ENABLED = "extensions.getAddons.cache.enabled";
+const PREF_CUSTOM_XPINSTALL_CONFIRMATION_UI = "xpinstall.customConfirmationUI";
+const PREF_UI_LASTCATEGORY = "extensions.ui.lastCategory";
+
+const MANAGER_URI = "about:addons";
+const INSTALL_URI = "chrome://mozapps/content/xpinstall/xpinstallConfirm.xul";
+const PREF_LOGGING_ENABLED = "extensions.logging.enabled";
+const PREF_SEARCH_MAXRESULTS = "extensions.getAddons.maxResults";
+const PREF_STRICT_COMPAT = "extensions.strictCompatibility";
+
+var PREF_CHECK_COMPATIBILITY;
+(function() {
+  var channel = "default";
+  try {
+    channel = Services.prefs.getCharPref("app.update.channel");
+  } catch (e) { }
+  if (channel != "aurora" &&
+    channel != "beta" &&
+    channel != "release" &&
+    channel != "esr") {
+    var version = "nightly";
+  } else {
+    version = Services.appinfo.version.replace(/^([^\.]+\.[0-9]+[a-z]*).*/gi, "$1");
+  }
+  PREF_CHECK_COMPATIBILITY = "extensions.checkCompatibility." + version;
+})();
+
+var gPendingTests = [];
+var gTestsRun = 0;
+var gTestStart = null;
+
+var gUseInContentUI = !gTestInWindow && ("switchToTabHavingURI" in window);
+
+var gRestorePrefs = [{name: PREF_LOGGING_ENABLED},
+                     {name: PREF_CUSTOM_XPINSTALL_CONFIRMATION_UI},
+                     {name: "extensions.webservice.discoverURL"},
+                     {name: "extensions.update.url"},
+                     {name: "extensions.update.background.url"},
+                     {name: "extensions.update.enabled"},
+                     {name: "extensions.update.autoUpdateDefault"},
+                     {name: "extensions.getAddons.get.url"},
+                     {name: "extensions.getAddons.getWithPerformance.url"},
+                     {name: "extensions.getAddons.search.browseURL"},
+                     {name: "extensions.getAddons.search.url"},
+                     {name: "extensions.getAddons.cache.enabled"},
+                     {name: "devtools.chrome.enabled"},
+                     {name: PREF_SEARCH_MAXRESULTS},
+                     {name: PREF_STRICT_COMPAT},
+                     {name: PREF_CHECK_COMPATIBILITY}];
+
+for (let pref of gRestorePrefs) {
+  if (!Services.prefs.prefHasUserValue(pref.name)) {
+    pref.type = "clear";
+    continue;
+  }
+  pref.type = Services.prefs.getPrefType(pref.name);
+  if (pref.type == Services.prefs.PREF_BOOL)
+    pref.value = Services.prefs.getBoolPref(pref.name);
+  else if (pref.type == Services.prefs.PREF_INT)
+    pref.value = Services.prefs.getIntPref(pref.name);
+  else if (pref.type == Services.prefs.PREF_STRING)
+    pref.value = Services.prefs.getCharPref(pref.name);
+}
+
+// Turn logging on for all tests
+Services.prefs.setBoolPref(PREF_LOGGING_ENABLED, true);
+
+Services.prefs.setBoolPref(PREF_CUSTOM_XPINSTALL_CONFIRMATION_UI, false);
+
+// Helper to register test failures and close windows if any are left open
+function checkOpenWindows(aWindowID) {
+  let windows = Services.wm.getEnumerator(aWindowID);
+  let found = false;
+  while (windows.hasMoreElements()) {
+    let win = windows.getNext().QueryInterface(Ci.nsIDOMWindow);
+    if (!win.closed) {
+      found = true;
+      win.close();
+    }
+  }
+  if (found)
+    ok(false, "Found unexpected " + aWindowID + " window still open");
+}
+
+// Tools to disable and re-enable the background update and blocklist timers
+// so that tests can protect themselves from unwanted timer events.
+var gCatMan = Components.classes["@mozilla.org/categorymanager;1"]
+                           .getService(Components.interfaces.nsICategoryManager);
+// Default values from toolkit/mozapps/extensions/extensions.manifest, but disable*UpdateTimer()
+// records the actual value so we can put it back in enable*UpdateTimer()
+var backgroundUpdateConfig = "@mozilla.org/addons/integration;1,getService,addon-background-update-timer,extensions.update.interval,86400";
+var blocklistUpdateConfig = "@mozilla.org/extensions/blocklist;1,getService,blocklist-background-update-timer,extensions.blocklist.interval,86400";
+
+var UTIMER = "update-timer";
+var AMANAGER = "addonManager";
+var BLOCKLIST = "nsBlocklistService";
+
+function disableBackgroundUpdateTimer() {
+  info("Disabling " + UTIMER + " " + AMANAGER);
+  backgroundUpdateConfig = gCatMan.getCategoryEntry(UTIMER, AMANAGER);
+  gCatMan.deleteCategoryEntry(UTIMER, AMANAGER, true);
+}
+
+function enableBackgroundUpdateTimer() {
+  info("Enabling " + UTIMER + " " + AMANAGER);
+  gCatMan.addCategoryEntry(UTIMER, AMANAGER, backgroundUpdateConfig, false, true);
+}
+
+function disableBlocklistUpdateTimer() {
+  info("Disabling " + UTIMER + " " + BLOCKLIST);
+  blocklistUpdateConfig = gCatMan.getCategoryEntry(UTIMER, BLOCKLIST);
+  gCatMan.deleteCategoryEntry(UTIMER, BLOCKLIST, true);
+}
+
+function enableBlocklistUpdateTimer() {
+  info("Enabling " + UTIMER + " " + BLOCKLIST);
+  gCatMan.addCategoryEntry(UTIMER, BLOCKLIST, blocklistUpdateConfig, false, true);
+}
+
+registerCleanupFunction(function() {
+  // Restore prefs
+  for (let pref of gRestorePrefs) {
+    if (pref.type == "clear")
+      Services.prefs.clearUserPref(pref.name);
+    else if (pref.type == Services.prefs.PREF_BOOL)
+      Services.prefs.setBoolPref(pref.name, pref.value);
+    else if (pref.type == Services.prefs.PREF_INT)
+      Services.prefs.setIntPref(pref.name, pref.value);
+    else if (pref.type == Services.prefs.PREF_STRING)
+      Services.prefs.setCharPref(pref.name, pref.value);
+  }
+
+  // Throw an error if the add-ons manager window is open anywhere
+  checkOpenWindows("Addons:Manager");
+  checkOpenWindows("Addons:Compatibility");
+  checkOpenWindows("Addons:Install");
+
+  return new Promise((resolve, reject) => AddonManager.getAllInstalls(resolve))
+    .then(aInstalls => {
+      for (let install of aInstalls) {
+        if (install instanceof MockInstall)
+          continue;
+
+        ok(false, "Should not have seen an install of " + install.sourceURI.spec + " in state " + install.state);
+        install.cancel();
+      }
+    });
+});
+
+function log_exceptions(aCallback, ...aArgs) {
+  try {
+    return aCallback.apply(null, aArgs);
+  }
+  catch (e) {
+    info("Exception thrown: " + e);
+    throw e;
+  }
+}
+
+function log_callback(aPromise, aCallback) {
+  aPromise.then(aCallback)
+    .then(null, e => info("Exception thrown: " + e));
+  return aPromise;
+}
+
+function add_test(test) {
+  gPendingTests.push(test);
+}
+
+function run_next_test() {
+  // Make sure we're not calling run_next_test from inside an add_task() test
+  // We're inside the browser_test.js 'testScope' here
+  if (this.__tasks) {
+    throw new Error("run_next_test() called from an add_task() test function. " +
+                    "run_next_test() should not be called from inside add_task() " +
+                    "under any circumstances!");
+  }
+  if (gTestsRun > 0)
+    info("Test " + gTestsRun + " took " + (Date.now() - gTestStart) + "ms");
+
+  if (gPendingTests.length == 0) {
+    executeSoon(end_test);
+    return;
+  }
+
+  gTestsRun++;
+  var test = gPendingTests.shift();
+  if (test.name)
+    info("Running test " + gTestsRun + " (" + test.name + ")");
+  else
+    info("Running test " + gTestsRun);
+
+  gTestStart = Date.now();
+  executeSoon(() => log_exceptions(test));
+}
+
+var get_tooltip_info = Task.async(function*(addon) {
+  let managerWindow = addon.ownerDocument.defaultView;
+
+  // The popup code uses a triggering event's target to set the
+  // document.tooltipNode property.
+  let nameNode = addon.ownerDocument.getAnonymousElementByAttribute(addon, "anonid", "name");
+  let event = new managerWindow.CustomEvent("TriggerEvent");
+  nameNode.dispatchEvent(event);
+
+  let tooltip = managerWindow.document.getElementById("addonitem-tooltip");
+
+  let promise = BrowserTestUtils.waitForEvent(tooltip, "popupshown");
+  tooltip.openPopup(nameNode, "after_start", 0, 0, false, false, event);
+  yield promise;
+
+  let tiptext = tooltip.label;
+
+  promise = BrowserTestUtils.waitForEvent(tooltip, "popuphidden");
+  tooltip.hidePopup();
+  yield promise;
+
+  let expectedName = addon.getAttribute("name");
+  ok(tiptext.substring(0, expectedName.length), expectedName,
+     "Tooltip should always start with the expected name");
+
+  if (expectedName.length == tiptext.length) {
+    return {
+      name: tiptext,
+      version: undefined
+    };
+  }
+  return {
+    name: tiptext.substring(0, expectedName.length),
+    version: tiptext.substring(expectedName.length + 1)
+  };
+});
+
+function get_addon_file_url(aFilename) {
+  try {
+    var cr = Cc["@mozilla.org/chrome/chrome-registry;1"].
+             getService(Ci.nsIChromeRegistry);
+    var fileurl = cr.convertChromeURL(makeURI(CHROMEROOT + "addons/" + aFilename));
+    return fileurl.QueryInterface(Ci.nsIFileURL);
+  } catch (ex) {
+    var jar = getJar(CHROMEROOT + "addons/" + aFilename);
+    var tmpDir = extractJarToTmp(jar);
+    tmpDir.append(aFilename);
+
+    return Services.io.newFileURI(tmpDir).QueryInterface(Ci.nsIFileURL);
+  }
+}
+
+function get_current_view(aManager) {
+  let view = aManager.document.getElementById("view-port").selectedPanel;
+  if (view.id == "headered-views") {
+    view = aManager.document.getElementById("headered-views-content").selectedPanel;
+  }
+  is(view, aManager.gViewController.displayedView, "view controller is tracking the displayed view correctly");
+  return view;
+}
+
+function get_test_items_in_list(aManager) {
+  var tests = "@tests.mozilla.org";
+
+  let view = get_current_view(aManager);
+  let listid = view.id == "search-view" ? "search-list" : "addon-list";
+  let item = aManager.document.getElementById(listid).firstChild;
+  let items = [];
+
+  while (item) {
+    if (item.localName != "richlistitem") {
+      item = item.nextSibling;
+      continue;
+    }
+
+    if (!item.mAddon || item.mAddon.id.substring(item.mAddon.id.length - tests.length) == tests)
+      items.push(item);
+    item = item.nextSibling;
+  }
+
+  return items;
+}
+
+function check_all_in_list(aManager, aIds, aIgnoreExtras) {
+  var doc = aManager.document;
+  var view = get_current_view(aManager);
+  var listid = view.id == "search-view" ? "search-list" : "addon-list";
+  var list = doc.getElementById(listid);
+
+  var inlist = [];
+  var node = list.firstChild;
+  while (node) {
+    if (node.value)
+      inlist.push(node.value);
+    node = node.nextSibling;
+  }
+
+  for (let id of aIds) {
+    if (inlist.indexOf(id) == -1)
+      ok(false, "Should find " + id + " in the list");
+  }
+
+  if (aIgnoreExtras)
+    return;
+
+  for (let inlistItem of inlist) {
+    if (aIds.indexOf(inlistItem) == -1)
+      ok(false, "Shouldn't have seen " + inlistItem + " in the list");
+  }
+}
+
+function get_addon_element(aManager, aId) {
+  var doc = aManager.document;
+  var view = get_current_view(aManager);
+  var listid = "addon-list";
+  if (view.id == "search-view")
+    listid = "search-list";
+  else if (view.id == "updates-view")
+    listid = "updates-list";
+  var list = doc.getElementById(listid);
+
+  var node = list.firstChild;
+  while (node) {
+    if (node.value == aId)
+      return node;
+    node = node.nextSibling;
+  }
+  return null;
+}
+
+function wait_for_view_load(aManagerWindow, aCallback, aForceWait, aLongerTimeout) {
+  requestLongerTimeout(aLongerTimeout ? aLongerTimeout : 2);
+
+  if (!aForceWait && !aManagerWindow.gViewController.isLoading) {
+    log_exceptions(aCallback, aManagerWindow);
+    return;
+  }
+
+  aManagerWindow.document.addEventListener("ViewChanged", function() {
+    aManagerWindow.document.removeEventListener("ViewChanged", arguments.callee, false);
+    log_exceptions(aCallback, aManagerWindow);
+  }, false);
+}
+
+function wait_for_manager_load(aManagerWindow, aCallback) {
+  if (!aManagerWindow.gIsInitializing) {
+    log_exceptions(aCallback, aManagerWindow);
+    return;
+  }
+
+  info("Waiting for initialization");
+  aManagerWindow.document.addEventListener("Initialized", function() {
+    aManagerWindow.document.removeEventListener("Initialized", arguments.callee, false);
+    log_exceptions(aCallback, aManagerWindow);
+  }, false);
+}
+
+function open_manager(aView, aCallback, aLoadCallback, aLongerTimeout) {
+  let p = new Promise((resolve, reject) => {
+
+    function setup_manager(aManagerWindow) {
+      if (aLoadCallback)
+        log_exceptions(aLoadCallback, aManagerWindow);
+
+      if (aView)
+        aManagerWindow.loadView(aView);
+
+      ok(aManagerWindow != null, "Should have an add-ons manager window");
+      is(aManagerWindow.location, MANAGER_URI, "Should be displaying the correct UI");
+
+      waitForFocus(function() {
+        info("window has focus, waiting for manager load");
+        wait_for_manager_load(aManagerWindow, function() {
+          info("Manager waiting for view load");
+          wait_for_view_load(aManagerWindow, function() {
+            resolve(aManagerWindow);
+          }, null, aLongerTimeout);
+        });
+      }, aManagerWindow);
+    }
+
+    if (gUseInContentUI) {
+      info("Loading manager window in tab");
+      Services.obs.addObserver(function (aSubject, aTopic, aData) {
+        Services.obs.removeObserver(arguments.callee, aTopic);
+        if (aSubject.location.href != MANAGER_URI) {
+          info("Ignoring load event for " + aSubject.location.href);
+          return;
+        }
+        setup_manager(aSubject);
+      }, "EM-loaded", false);
+
+      gBrowser.selectedTab = gBrowser.addTab();
+      switchToTabHavingURI(MANAGER_URI, true);
+    } else {
+      info("Loading manager window in dialog");
+      Services.obs.addObserver(function (aSubject, aTopic, aData) {
+        Services.obs.removeObserver(arguments.callee, aTopic);
+        setup_manager(aSubject);
+      }, "EM-loaded", false);
+
+      openDialog(MANAGER_URI);
+    }
+  });
+
+  // The promise resolves with the manager window, so it is passed to the callback
+  return log_callback(p, aCallback);
+}
+
+function close_manager(aManagerWindow, aCallback, aLongerTimeout) {
+  let p = new Promise((resolve, reject) => {
+    requestLongerTimeout(aLongerTimeout ? aLongerTimeout : 2);
+
+    ok(aManagerWindow != null, "Should have an add-ons manager window to close");
+    is(aManagerWindow.location, MANAGER_URI, "Should be closing window with correct URI");
+
+    aManagerWindow.addEventListener("unload", function() {
+      try {
+        dump("Manager window unload handler\n");
+        this.removeEventListener("unload", arguments.callee, false);
+        resolve();
+      } catch (e) {
+        reject(e);
+      }
+    }, false);
+  });
+
+  info("Telling manager window to close");
+  aManagerWindow.close();
+  info("Manager window close() call returned");
+
+  return log_callback(p, aCallback);
+}
+
+function restart_manager(aManagerWindow, aView, aCallback, aLoadCallback) {
+  if (!aManagerWindow) {
+    return open_manager(aView, aCallback, aLoadCallback);
+  }
+
+  return close_manager(aManagerWindow)
+    .then(() => open_manager(aView, aCallback, aLoadCallback));
+}
+
+function wait_for_window_open(aCallback) {
+  Services.wm.addListener({
+    onOpenWindow: function(aWindow) {
+      Services.wm.removeListener(this);
+
+      let domwindow = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
+                             .getInterface(Ci.nsIDOMWindow);
+      domwindow.addEventListener("load", function() {
+        domwindow.removeEventListener("load", arguments.callee, false);
+        executeSoon(function() {
+          aCallback(domwindow);
+        });
+      }, false);
+    },
+
+    onCloseWindow: function(aWindow) {
+    },
+
+    onWindowTitleChange: function(aWindow, aTitle) {
+    }
+  });
+}
+
+function get_string(aName, ...aArgs) {
+  var bundle = Services.strings.createBundle("chrome://mozapps/locale/extensions/extensions.properties");
+  if (aArgs.length == 0)
+    return bundle.GetStringFromName(aName);
+  return bundle.formatStringFromName(aName, aArgs, aArgs.length);
+}
+
+function formatDate(aDate) {
+  const locale = Cc["@mozilla.org/chrome/chrome-registry;1"]
+                 .getService(Ci.nsIXULChromeRegistry)
+                 .getSelectedLocale("global", true);
+  const dtOptions = { year: 'numeric', month: 'long', day: 'numeric' };
+  return aDate.toLocaleDateString(locale, dtOptions);
+}
+
+function is_hidden(aElement) {
+  var style = aElement.ownerDocument.defaultView.getComputedStyle(aElement, "");
+  if (style.display == "none")
+    return true;
+  if (style.visibility != "visible")
+    return true;
+
+  // Hiding a parent element will hide all its children
+  if (aElement.parentNode != aElement.ownerDocument)
+    return is_hidden(aElement.parentNode);
+
+  return false;
+}
+
+function is_element_visible(aElement, aMsg) {
+  isnot(aElement, null, "Element should not be null, when checking visibility");
+  ok(!is_hidden(aElement), aMsg || (aElement + " should be visible"));
+}
+
+function is_element_hidden(aElement, aMsg) {
+  isnot(aElement, null, "Element should not be null, when checking visibility");
+  ok(is_hidden(aElement), aMsg || (aElement + " should be hidden"));
+}
+
+function promiseAddonByID(aId) {
+  return new Promise(resolve => {
+    AddonManager.getAddonByID(aId, resolve);
+  });
+}
+
+function promiseAddonsByIDs(aIDs) {
+  return new Promise(resolve => {
+    AddonManager.getAddonsByIDs(aIDs, resolve);
+  });
+}
+/**
+ * Install an add-on and call a callback when complete.
+ *
+ * The callback will receive the Addon for the installed add-on.
+ */
+function install_addon(path, cb, pathPrefix=TESTROOT) {
+  let p = new Promise((resolve, reject) => {
+    AddonManager.getInstallForURL(pathPrefix + path, (install) => {
+      install.addListener({
+        onInstallEnded: () => resolve(install.addon),
+      });
+
+      install.install();
+    }, "application/x-xpinstall");
+  });
+
+  return log_callback(p, cb);
+}
+
+function CategoryUtilities(aManagerWindow) {
+  this.window = aManagerWindow;
+
+  var self = this;
+  this.window.addEventListener("unload", function() {
+    self.window.removeEventListener("unload", arguments.callee, false);
+    self.window = null;
+  }, false);
+}
+
+CategoryUtilities.prototype = {
+  window: null,
+
+  get selectedCategory() {
+    isnot(this.window, null, "Should not get selected category when manager window is not loaded");
+    var selectedItem = this.window.document.getElementById("categories").selectedItem;
+    isnot(selectedItem, null, "A category should be selected");
+    var view = this.window.gViewController.parseViewId(selectedItem.value);
+    return (view.type == "list") ? view.param : view.type;
+  },
+
+  get: function(aCategoryType, aAllowMissing) {
+    isnot(this.window, null, "Should not get category when manager window is not loaded");
+    var categories = this.window.document.getElementById("categories");
+
+    var viewId = "addons://list/" + aCategoryType;
+    var items = categories.getElementsByAttribute("value", viewId);
+    if (items.length)
+      return items[0];
+
+    viewId = "addons://" + aCategoryType + "/";
+    items = categories.getElementsByAttribute("value", viewId);
+    if (items.length)
+      return items[0];
+
+    if (!aAllowMissing)
+      ok(false, "Should have found a category with type " + aCategoryType);
+    return null;
+  },
+
+  getViewId: function(aCategoryType) {
+    isnot(this.window, null, "Should not get view id when manager window is not loaded");
+    return this.get(aCategoryType).value;
+  },
+
+  isVisible: function(aCategory) {
+    isnot(this.window, null, "Should not check visible state when manager window is not loaded");
+    if (aCategory.hasAttribute("disabled") &&
+        aCategory.getAttribute("disabled") == "true")
+      return false;
+
+    return !is_hidden(aCategory);
+  },
+
+  isTypeVisible: function(aCategoryType) {
+    return this.isVisible(this.get(aCategoryType));
+  },
+
+  open: function(aCategory, aCallback) {
+
+    isnot(this.window, null, "Should not open category when manager window is not loaded");
+    ok(this.isVisible(aCategory), "Category should be visible if attempting to open it");
+
+    EventUtils.synthesizeMouse(aCategory, 2, 2, { }, this.window);
+    let p = new Promise((resolve, reject) => wait_for_view_load(this.window, resolve));
+
+    return log_callback(p, aCallback);
+  },
+
+  openType: function(aCategoryType, aCallback) {
+    return this.open(this.get(aCategoryType), aCallback);
+  }
+}
+
+function CertOverrideListener(host, bits) {
+  this.host = host;
+  this.bits = bits;
+}
+
+CertOverrideListener.prototype = {
+  host: null,
+  bits: null,
+
+  getInterface: function (aIID) {
+    return this.QueryInterface(aIID);
+  },
+
+  QueryInterface: function(aIID) {
+    if (aIID.equals(Ci.nsIBadCertListener2) ||
+        aIID.equals(Ci.nsIInterfaceRequestor) ||
+        aIID.equals(Ci.nsISupports))
+      return this;
+
+    throw Components.Exception("No interface", Components.results.NS_ERROR_NO_INTERFACE);
+  },
+
+  notifyCertProblem: function (socketInfo, sslStatus, targetHost) {
+    var cert = sslStatus.QueryInterface(Components.interfaces.nsISSLStatus)
+                        .serverCert;
+    var cos = Cc["@mozilla.org/security/certoverride;1"].
+              getService(Ci.nsICertOverrideService);
+    cos.rememberValidityOverride(this.host, -1, cert, this.bits, false);
+    return true;
+  }
+}
+
+// Add overrides for the bad certificates
+function addCertOverride(host, bits) {
+  var req = new XMLHttpRequest();
+  try {
+    req.open("GET", "https://" + host + "/", false);
+    req.channel.notificationCallbacks = new CertOverrideListener(host, bits);
+    req.send(null);
+  }
+  catch (e) {
+    // This request will fail since the SSL server is not trusted yet
+  }
+}
+
+/** *** Mock Provider *****/
+
+function MockProvider(aUseAsyncCallbacks, aTypes) {
+  this.addons = [];
+  this.installs = [];
+  this.callbackTimers = [];
+  this.timerLocations = new Map();
+  this.useAsyncCallbacks = (aUseAsyncCallbacks === undefined) ? true : aUseAsyncCallbacks;
+  this.types = (aTypes === undefined) ? [{
+    id: "extension",
+    name: "Extensions",
+    uiPriority: 4000,
+    flags: AddonManager.TYPE_UI_VIEW_LIST |
+           AddonManager.TYPE_SUPPORTS_UNDO_RESTARTLESS_UNINSTALL,
+  }] : aTypes;
+
+  var self = this;
+  registerCleanupFunction(function() {
+    if (self.started)
+      self.unregister();
+  });
+
+  this.register();
+}
+
+MockProvider.prototype = {
+  addons: null,
+  installs: null,
+  started: null,
+  apiDelay: 10,
+  callbackTimers: null,
+  timerLocations: null,
+  useAsyncCallbacks: null,
+  types: null,
+
+  /** *** Utility functions *****/
+
+  /**
+   * Register this provider with the AddonManager
+   */
+  register: function MP_register() {
+    info("Registering mock add-on provider");
+    AddonManagerPrivate.registerProvider(this, this.types);
+  },
+
+  /**
+   * Unregister this provider with the AddonManager
+   */
+  unregister: function MP_unregister() {
+    info("Unregistering mock add-on provider");
+    AddonManagerPrivate.unregisterProvider(this);
+  },
+
+  /**
+   * Adds an add-on to the list of add-ons that this provider exposes to the
+   * AddonManager, dispatching appropriate events in the process.
+   *
+   * @param  aAddon
+   *         The add-on to add
+   */
+  addAddon: function MP_addAddon(aAddon) {
+    var oldAddons = this.addons.filter(aOldAddon => aOldAddon.id == aAddon.id);
+    var oldAddon = oldAddons.length > 0 ? oldAddons[0] : null;
+
+    this.addons = this.addons.filter(aOldAddon => aOldAddon.id != aAddon.id);
+
+    this.addons.push(aAddon);
+    aAddon._provider = this;
+
+    if (!this.started)
+      return;
+
+    let requiresRestart = (aAddon.operationsRequiringRestart &
+                           AddonManager.OP_NEEDS_RESTART_INSTALL) != 0;
+    AddonManagerPrivate.callInstallListeners("onExternalInstall", null, aAddon,
+                                             oldAddon, requiresRestart)
+  },
+
+  /**
+   * Removes an add-on from the list of add-ons that this provider exposes to
+   * the AddonManager, dispatching the onUninstalled event in the process.
+   *
+   * @param  aAddon
+   *         The add-on to add
+   */
+  removeAddon: function MP_removeAddon(aAddon) {
+    var pos = this.addons.indexOf(aAddon);
+    if (pos == -1) {
+      ok(false, "Tried to remove an add-on that wasn't registered with the mock provider");
+      return;
+    }
+
+    this.addons.splice(pos, 1);
+
+    if (!this.started)
+      return;
+
+    AddonManagerPrivate.callAddonListeners("onUninstalled", aAddon);
+  },
+
+  /**
+   * Adds an add-on install to the list of installs that this provider exposes
+   * to the AddonManager, dispatching appropriate events in the process.
+   *
+   * @param  aInstall
+   *         The add-on install to add
+   */
+  addInstall: function MP_addInstall(aInstall) {
+    this.installs.push(aInstall);
+    aInstall._provider = this;
+
+    if (!this.started)
+      return;
+
+    aInstall.callListeners("onNewInstall");
+  },
+
+  removeInstall: function MP_removeInstall(aInstall) {
+    var pos = this.installs.indexOf(aInstall);
+    if (pos == -1) {
+      ok(false, "Tried to remove an install that wasn't registered with the mock provider");
+      return;
+    }
+
+    this.installs.splice(pos, 1);
+  },
+
+  /**
+   * Creates a set of mock add-on objects and adds them to the list of add-ons
+   * managed by this provider.
+   *
+   * @param  aAddonProperties
+   *         An array of objects containing properties describing the add-ons
+   * @return Array of the new MockAddons
+   */
+  createAddons: function MP_createAddons(aAddonProperties) {
+    var newAddons = [];
+    for (let addonProp of aAddonProperties) {
+      let addon = new MockAddon(addonProp.id);
+      for (let prop in addonProp) {
+        if (prop == "id")
+          continue;
+        if (prop == "applyBackgroundUpdates") {
+          addon._applyBackgroundUpdates = addonProp[prop];
+          continue;
+        }
+        if (prop == "appDisabled") {
+          addon._appDisabled = addonProp[prop];
+          continue;
+        }
+        addon[prop] = addonProp[prop];
+      }
+      if (!addon.optionsType && !!addon.optionsURL)
+        addon.optionsType = AddonManager.OPTIONS_TYPE_DIALOG;
+
+      // Make sure the active state matches the passed in properties
+      addon.isActive = addon.shouldBeActive;
+
+      this.addAddon(addon);
+      newAddons.push(addon);
+    }
+
+    return newAddons;
+  },
+
+  /**
+   * Creates a set of mock add-on install objects and adds them to the list
+   * of installs managed by this provider.
+   *
+   * @param  aInstallProperties
+   *         An array of objects containing properties describing the installs
+   * @return Array of the new MockInstalls
+   */
+  createInstalls: function MP_createInstalls(aInstallProperties) {
+    var newInstalls = [];
+    for (let installProp of aInstallProperties) {
+      let install = new MockInstall(installProp.name || null,
+                                    installProp.type || null,
+                                    null);
+      for (let prop in installProp) {
+        switch (prop) {
+          case "name":
+          case "type":
+            break;
+          case "sourceURI":
+            install[prop] = NetUtil.newURI(installProp[prop]);
+            break;
+          default:
+            install[prop] = installProp[prop];
+        }
+      }
+      this.addInstall(install);
+      newInstalls.push(install);
+    }
+
+    return newInstalls;
+  },
+
+  /** *** AddonProvider implementation *****/
+
+  /**
+   * Called to initialize the provider.
+   */
+  startup: function MP_startup() {
+    this.started = true;
+  },
+
+  /**
+   * Called when the provider should shutdown.
+   */
+  shutdown: function MP_shutdown() {
+    if (this.callbackTimers.length) {
+      info("MockProvider: pending callbacks at shutdown(): calling immediately");
+    }
+    while (this.callbackTimers.length > 0) {
+      // When we notify the callback timer, it removes itself from our array
+      let timer = this.callbackTimers[0];
+      try {
+        let setAt = this.timerLocations.get(timer);
+        info("Notifying timer set at " + (setAt || "unknown location"));
+        timer.callback.notify(timer);
+        timer.cancel();
+      } catch (e) {
+        info("Timer notify failed: " + e);
+      }
+    }
+    this.callbackTimers = [];
+    this.timerLocations = null;
+
+    this.started = false;
+  },
+
+  /**
+   * Called to get an Addon with a particular ID.
+   *
+   * @param  aId
+   *         The ID of the add-on to retrieve
+   * @param  aCallback
+   *         A callback to pass the Addon to
+   */
+  getAddonByID: function MP_getAddon(aId, aCallback) {
+    for (let addon of this.addons) {
+      if (addon.id == aId) {
+        this._delayCallback(aCallback, addon);
+        return;
+      }
+    }
+
+    aCallback(null);
+  },
+
+  /**
+   * Called to get Addons of a particular type.
+   *
+   * @param  aTypes
+   *         An array of types to fetch. Can be null to get all types.
+   * @param  callback
+   *         A callback to pass an array of Addons to
+   */
+  getAddonsByTypes: function MP_getAddonsByTypes(aTypes, aCallback) {
+    var addons = this.addons.filter(function(aAddon) {
+      if (aTypes && aTypes.length > 0 && aTypes.indexOf(aAddon.type) == -1)
+        return false;
+      return true;
+    });
+    this._delayCallback(aCallback, addons);
+  },
+
+  /**
+   * Called to get Addons that have pending operations.
+   *
+   * @param  aTypes
+   *         An array of types to fetch. Can be null to get all types
+   * @param  aCallback
+   *         A callback to pass an array of Addons to
+   */
+  getAddonsWithOperationsByTypes: function MP_getAddonsWithOperationsByTypes(aTypes, aCallback) {
+    var addons = this.addons.filter(function(aAddon) {
+      if (aTypes && aTypes.length > 0 && aTypes.indexOf(aAddon.type) == -1)
+        return false;
+      return aAddon.pendingOperations != 0;
+    });
+    this._delayCallback(aCallback, addons);
+  },
+
+  /**
+   * Called to get the current AddonInstalls, optionally restricting by type.
+   *
+   * @param  aTypes
+   *         An array of types or null to get all types
+   * @param  aCallback
+   *         A callback to pass the array of AddonInstalls to
+   */
+  getInstallsByTypes: function MP_getInstallsByTypes(aTypes, aCallback) {
+    var installs = this.installs.filter(function(aInstall) {
+      // Appear to have actually removed cancelled installs from the provider
+      if (aInstall.state == AddonManager.STATE_CANCELLED)
+        return false;
+
+      if (aTypes && aTypes.length > 0 && aTypes.indexOf(aInstall.type) == -1)
+        return false;
+
+      return true;
+    });
+    this._delayCallback(aCallback, installs);
+  },
+
+  /**
+   * Called when a new add-on has been enabled when only one add-on of that type
+   * can be enabled.
+   *
+   * @param  aId
+   *         The ID of the newly enabled add-on
+   * @param  aType
+   *         The type of the newly enabled add-on
+   * @param  aPendingRestart
+   *         true if the newly enabled add-on will only become enabled after a
+   *         restart
+   */
+  addonChanged: function MP_addonChanged(aId, aType, aPendingRestart) {
+    // Not implemented
+  },
+
+  /**
+   * Update the appDisabled property for all add-ons.
+   */
+  updateAddonAppDisabledStates: function MP_updateAddonAppDisabledStates() {
+    // Not needed
+  },
+
+  /**
+   * Called to get an AddonInstall to download and install an add-on from a URL.
+   *
+   * @param  aUrl
+   *         The URL to be installed
+   * @param  aHash
+   *         A hash for the install
+   * @param  aName
+   *         A name for the install
+   * @param  aIconURL
+   *         An icon URL for the install
+   * @param  aVersion
+   *         A version for the install
+   * @param  aLoadGroup
+   *         An nsILoadGroup to associate requests with
+   * @param  aCallback
+   *         A callback to pass the AddonInstall to
+   */
+  getInstallForURL: function MP_getInstallForURL(aUrl, aHash, aName, aIconURL,
+                                                  aVersion, aLoadGroup, aCallback) {
+    // Not yet implemented
+  },
+
+  /**
+   * Called to get an AddonInstall to install an add-on from a local file.
+   *
+   * @param  aFile
+   *         The file to be installed
+   * @param  aCallback
+   *         A callback to pass the AddonInstall to
+   */
+  getInstallForFile: function MP_getInstallForFile(aFile, aCallback) {
+    // Not yet implemented
+  },
+
+  /**
+   * Called to test whether installing add-ons is enabled.
+   *
+   * @return true if installing is enabled
+   */
+  isInstallEnabled: function MP_isInstallEnabled() {
+    return false;
+  },
+
+  /**
+   * Called to test whether this provider supports installing a particular
+   * mimetype.
+   *
+   * @param  aMimetype
+   *         The mimetype to check for
+   * @return true if the mimetype is supported
+   */
+  supportsMimetype: function MP_supportsMimetype(aMimetype) {
+    return false;
+  },
+
+  /**
+   * Called to test whether installing add-ons from a URI is allowed.
+   *
+   * @param  aUri
+   *         The URI being installed from
+   * @return true if installing is allowed
+   */
+  isInstallAllowed: function MP_isInstallAllowed(aUri) {
+    return false;
+  },
+
+
+  /** *** Internal functions *****/
+
+  /**
+   * Delay calling a callback to fake a time-consuming async operation.
+   * The delay is specified by the apiDelay property, in milliseconds.
+   * Parameters to send to the callback should be specified as arguments after
+   * the aCallback argument.
+   *
+   * @param aCallback Callback to eventually call
+   */
+  _delayCallback: function MP_delayCallback(aCallback, ...aArgs) {
+    if (!this.useAsyncCallbacks) {
+      aCallback(...aArgs);
+      return;
+    }
+
+    let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+    // Need to keep a reference to the timer, so it doesn't get GC'ed
+    this.callbackTimers.push(timer);
+    // Capture a stack trace where the timer was set
+    // needs the 'new Error' hack until bug 1007656
+    this.timerLocations.set(timer, Log.stackTrace(new Error("dummy")));
+    timer.initWithCallback(() => {
+      let idx = this.callbackTimers.indexOf(timer);
+      if (idx == -1) {
+        dump("MockProvider._delayCallback lost track of timer set at "
+             + (this.timerLocations.get(timer) || "unknown location") + "\n");
+      } else {
+        this.callbackTimers.splice(idx, 1);
+      }
+      this.timerLocations.delete(timer);
+      aCallback(...aArgs);
+    }, this.apiDelay, timer.TYPE_ONE_SHOT);
+  }
+};
+
+/** *** Mock Addon object for the Mock Provider *****/
+
+function MockAddon(aId, aName, aType, aOperationsRequiringRestart) {
+  // Only set required attributes.
+  this.id = aId || "";
+  this.name = aName || "";
+  this.type = aType || "extension";
+  this.version = "";
+  this.isCompatible = true;
+  this.providesUpdatesSecurely = true;
+  this.blocklistState = 0;
+  this._appDisabled = false;
+  this._userDisabled = false;
+  this._applyBackgroundUpdates = AddonManager.AUTOUPDATE_ENABLE;
+  this.scope = AddonManager.SCOPE_PROFILE;
+  this.isActive = true;
+  this.creator = "";
+  this.pendingOperations = 0;
+  this._permissions = AddonManager.PERM_CAN_UNINSTALL |
+                      AddonManager.PERM_CAN_ENABLE |
+                      AddonManager.PERM_CAN_DISABLE |
+                      AddonManager.PERM_CAN_UPGRADE;
+  this.operationsRequiringRestart = (aOperationsRequiringRestart != undefined) ?
+    aOperationsRequiringRestart :
+    (AddonManager.OP_NEEDS_RESTART_INSTALL |
+     AddonManager.OP_NEEDS_RESTART_UNINSTALL |
+     AddonManager.OP_NEEDS_RESTART_ENABLE |
+     AddonManager.OP_NEEDS_RESTART_DISABLE);
+}
+
+MockAddon.prototype = {
+  get isCorrectlySigned() {
+    if (this.signedState === AddonManager.SIGNEDSTATE_NOT_REQUIRED)
+      return true;
+    return this.signedState > AddonManager.SIGNEDSTATE_MISSING;
+  },
+
+  get shouldBeActive() {
+    return !this.appDisabled && !this._userDisabled &&
+           !(this.pendingOperations & AddonManager.PENDING_UNINSTALL);
+  },
+
+  get appDisabled() {
+    return this._appDisabled;
+  },
+
+  set appDisabled(val) {
+    if (val == this._appDisabled)
+      return val;
+
+    AddonManagerPrivate.callAddonListeners("onPropertyChanged", this, ["appDisabled"]);
+
+    var currentActive = this.shouldBeActive;
+    this._appDisabled = val;
+    var newActive = this.shouldBeActive;
+    this._updateActiveState(currentActive, newActive);
+
+    return val;
+  },
+
+  get userDisabled() {
+    return this._userDisabled;
+  },
+
+  set userDisabled(val) {
+    if (val == this._userDisabled)
+      return val;
+
+    var currentActive = this.shouldBeActive;
+    this._userDisabled = val;
+    var newActive = this.shouldBeActive;
+    this._updateActiveState(currentActive, newActive);
+
+    return val;
+  },
+
+  get permissions() {
+    let permissions = this._permissions;
+    if (this.appDisabled || !this._userDisabled)
+      permissions &= ~AddonManager.PERM_CAN_ENABLE;
+    if (this.appDisabled || this._userDisabled)
+      permissions &= ~AddonManager.PERM_CAN_DISABLE;
+    return permissions;
+  },
+
+  set permissions(val) {
+    return this._permissions = val;
+  },
+
+  get applyBackgroundUpdates() {
+    return this._applyBackgroundUpdates;
+  },
+
+  set applyBackgroundUpdates(val) {
+    if (val != AddonManager.AUTOUPDATE_DEFAULT &&
+        val != AddonManager.AUTOUPDATE_DISABLE &&
+        val != AddonManager.AUTOUPDATE_ENABLE) {
+      ok(false, "addon.applyBackgroundUpdates set to an invalid value: " + val);
+    }
+    this._applyBackgroundUpdates = val;
+    AddonManagerPrivate.callAddonListeners("onPropertyChanged", this, ["applyBackgroundUpdates"]);
+  },
+
+  isCompatibleWith: function(aAppVersion, aPlatformVersion) {
+    return true;
+  },
+
+  findUpdates: function(aListener, aReason, aAppVersion, aPlatformVersion) {
+    // Tests can implement this if they need to
+  },
+
+  uninstall: function(aAlwaysAllowUndo = false) {
+    if ((this.operationsRequiringRestart & AddonManager.OP_NEED_RESTART_UNINSTALL)
+        && this.pendingOperations & AddonManager.PENDING_UNINSTALL)
+      throw Components.Exception("Add-on is already pending uninstall");
+
+    var needsRestart = aAlwaysAllowUndo || !!(this.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_UNINSTALL);
+    this.pendingOperations |= AddonManager.PENDING_UNINSTALL;
+    AddonManagerPrivate.callAddonListeners("onUninstalling", this, needsRestart);
+    if (!needsRestart) {
+      this.pendingOperations -= AddonManager.PENDING_UNINSTALL;
+      this._provider.removeAddon(this);
+    } else if (!(this.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_DISABLE)) {
+      this.isActive = false;
+    }
+  },
+
+  cancelUninstall: function() {
+    if (!(this.pendingOperations & AddonManager.PENDING_UNINSTALL))
+      throw Components.Exception("Add-on is not pending uninstall");
+
+    this.pendingOperations -= AddonManager.PENDING_UNINSTALL;
+    this.isActive = this.shouldBeActive;
+    AddonManagerPrivate.callAddonListeners("onOperationCancelled", this);
+  },
+
+  markAsSeen: function() {
+    this.seen = true;
+  },
+
+  _updateActiveState: function(currentActive, newActive) {
+    if (currentActive == newActive)
+      return;
+
+    if (newActive == this.isActive) {
+      this.pendingOperations -= (newActive ? AddonManager.PENDING_DISABLE : AddonManager.PENDING_ENABLE);
+      AddonManagerPrivate.callAddonListeners("onOperationCancelled", this);
+    }
+    else if (newActive) {
+      let needsRestart = !!(this.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_ENABLE);
+      this.pendingOperations |= AddonManager.PENDING_ENABLE;
+      AddonManagerPrivate.callAddonListeners("onEnabling", this, needsRestart);
+      if (!needsRestart) {
+        this.isActive = newActive;
+        this.pendingOperations -= AddonManager.PENDING_ENABLE;
+        AddonManagerPrivate.callAddonListeners("onEnabled", this);
+      }
+    }
+    else {
+      let needsRestart = !!(this.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_DISABLE);
+      this.pendingOperations |= AddonManager.PENDING_DISABLE;
+      AddonManagerPrivate.callAddonListeners("onDisabling", this, needsRestart);
+      if (!needsRestart) {
+        this.isActive = newActive;
+        this.pendingOperations -= AddonManager.PENDING_DISABLE;
+        AddonManagerPrivate.callAddonListeners("onDisabled", this);
+      }
+    }
+  }
+};
+
+/** *** Mock AddonInstall object for the Mock Provider *****/
+
+function MockInstall(aName, aType, aAddonToInstall) {
+  this.name = aName || "";
+  // Don't expose type until download completed
+  this._type = aType || "extension";
+  this.type = null;
+  this.version = "1.0";
+  this.iconURL = "";
+  this.infoURL = "";
+  this.state = AddonManager.STATE_AVAILABLE;
+  this.error = 0;
+  this.sourceURI = null;
+  this.file = null;
+  this.progress = 0;
+  this.maxProgress = -1;
+  this.certificate = null;
+  this.certName = "";
+  this.existingAddon = null;
+  this.addon = null;
+  this._addonToInstall = aAddonToInstall;
+  this.listeners = [];
+
+  // Another type of install listener for tests that want to check the results
+  // of code run from standard install listeners
+  this.testListeners = [];
+}
+
+MockInstall.prototype = {
+  install: function() {
+    switch (this.state) {
+      case AddonManager.STATE_AVAILABLE:
+        this.state = AddonManager.STATE_DOWNLOADING;
+        if (!this.callListeners("onDownloadStarted")) {
+          this.state = AddonManager.STATE_CANCELLED;
+          this.callListeners("onDownloadCancelled");
+          return;
+        }
+
+        this.type = this._type;
+
+        // Adding addon to MockProvider to be implemented when needed
+        if (this._addonToInstall)
+          this.addon = this._addonToInstall;
+        else {
+          this.addon = new MockAddon("", this.name, this.type);
+          this.addon.version = this.version;
+          this.addon.pendingOperations = AddonManager.PENDING_INSTALL;
+        }
+        this.addon.install = this;
+        if (this.existingAddon) {
+          if (!this.addon.id)
+            this.addon.id = this.existingAddon.id;
+          this.existingAddon.pendingUpgrade = this.addon;
+          this.existingAddon.pendingOperations |= AddonManager.PENDING_UPGRADE;
+        }
+
+        this.state = AddonManager.STATE_DOWNLOADED;
+        this.callListeners("onDownloadEnded");
+
+      case AddonManager.STATE_DOWNLOADED:
+        this.state = AddonManager.STATE_INSTALLING;
+        if (!this.callListeners("onInstallStarted")) {
+          this.state = AddonManager.STATE_CANCELLED;
+          this.callListeners("onInstallCancelled");
+          return;
+        }
+
+        let needsRestart = (this.operationsRequiringRestart & AddonManager.OP_NEEDS_RESTART_INSTALL);
+        AddonManagerPrivate.callAddonListeners("onInstalling", this.addon, needsRestart);
+        if (!needsRestart) {
+          AddonManagerPrivate.callAddonListeners("onInstalled", this.addon);
+        }
+
+        this.state = AddonManager.STATE_INSTALLED;
+        this.callListeners("onInstallEnded");
+        break;
+      case AddonManager.STATE_DOWNLOADING:
+      case AddonManager.STATE_CHECKING:
+      case AddonManager.STATE_INSTALLING:
+        // Installation is already running
+        return;
+      default:
+        ok(false, "Cannot start installing when state = " + this.state);
+    }
+  },
+
+  cancel: function() {
+    switch (this.state) {
+      case AddonManager.STATE_AVAILABLE:
+        this.state = AddonManager.STATE_CANCELLED;
+        break;
+      case AddonManager.STATE_INSTALLED:
+        this.state = AddonManager.STATE_CANCELLED;
+        this._provider.removeInstall(this);
+        this.callListeners("onInstallCancelled");
+        break;
+      default:
+        // Handling cancelling when downloading to be implemented when needed
+        ok(false, "Cannot cancel when state = " + this.state);
+    }
+  },
+
+
+  addListener: function(aListener) {
+    if (!this.listeners.some(i => i == aListener))
+      this.listeners.push(aListener);
+  },
+
+  removeListener: function(aListener) {
+    this.listeners = this.listeners.filter(i => i != aListener);
+  },
+
+  addTestListener: function(aListener) {
+    if (!this.testListeners.some(i => i == aListener))
+      this.testListeners.push(aListener);
+  },
+
+  removeTestListener: function(aListener) {
+    this.testListeners = this.testListeners.filter(i => i != aListener);
+  },
+
+  callListeners: function(aMethod) {
+    var result = AddonManagerPrivate.callInstallListeners(aMethod, this.listeners,
+                                                          this, this.addon);
+
+    // Call test listeners after standard listeners to remove race condition
+    // between standard and test listeners
+    for (let listener of this.testListeners) {
+      try {
+        if (aMethod in listener)
+          if (listener[aMethod].call(listener, this, this.addon) === false)
+            result = false;
+      }
+      catch (e) {
+        ok(false, "Test listener threw exception: " + e);
+      }
+    }
+
+    return result;
+  }
+};
+
+function waitForCondition(condition, nextTest, errorMsg) {
+  let tries = 0;
+  let interval = setInterval(function() {
+    if (tries >= 30) {
+      ok(false, errorMsg);
+      moveOn();
+    }
+    var conditionPassed;
+    try {
+      conditionPassed = condition();
+    } catch (e) {
+      ok(false, e + "\n" + e.stack);
+      conditionPassed = false;
+    }
+    if (conditionPassed) {
+      moveOn();
+    }
+    tries++;
+  }, 100);
+  let moveOn = function() { clearInterval(interval); nextTest(); };
+}
+
+function getTestPluginTag() {
+  let ph = Cc["@mozilla.org/plugin/host;1"].getService(Ci.nsIPluginHost);
+  let tags = ph.getPluginTags();
+
+  // Find the test plugin
+  for (let i = 0; i < tags.length; i++) {
+    if (tags[i].name == "Test Plug-in")
+      return tags[i];
+  }
+  ok(false, "Unable to find plugin");
+  return null;
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/more_options.xul b/toolkit/mozapps/webextensions/test/browser/more_options.xul
new file mode 100644
index 000000000..28dbb0a2e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/more_options.xul
@@ -0,0 +1,32 @@
+<?xml version="1.0" ?>
+<vbox xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <setting pref="extensions.inlinesettings3.radioBool" type="radio" title="Radio">
+    <radiogroup>
+      <radio label="Delta" value="true" />
+      <radio label="Echo" value="false" />
+    </radiogroup>
+  </setting>
+  <setting pref="extensions.inlinesettings3.radioInt" type="radio" title="Radio">
+    <radiogroup>
+      <radio label="Foxtrot" value="4" />
+      <radio label="Golf" value="5" />
+      <radio label="Hotel" value="6" />
+    </radiogroup>
+  </setting>
+  <setting pref="extensions.inlinesettings3.radioString" type="radio" title="Radio">
+    <radiogroup>
+      <radio label="India" value="india" />
+      <radio label="Juliet" value="juliet" />
+      <radio label="Kilo &#x338F;" value="kilo &#x338F;" />
+    </radiogroup>
+  </setting>
+  <setting pref="extensions.inlinesettings3.menulist" type="menulist" title="Menulist">
+    <menulist sizetopopup="always">
+      <menupopup>
+        <menuitem label="Lima" value="7" />
+        <menuitem label="Mike" value="8" />
+        <menuitem label="November" value="9" />
+      </menupopup>
+    </menulist>
+  </setting>
+</vbox>
diff --git a/toolkit/mozapps/webextensions/test/browser/moz.build b/toolkit/mozapps/webextensions/test/browser/moz.build
new file mode 100644
index 000000000..af04aaeef
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/moz.build
@@ -0,0 +1,10 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+BROWSER_CHROME_MANIFESTS += [
+    'browser-window.ini',
+    'browser.ini',
+]
diff --git a/toolkit/mozapps/webextensions/test/browser/options.xul b/toolkit/mozapps/webextensions/test/browser/options.xul
new file mode 100644
index 000000000..1b6827915
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/options.xul
@@ -0,0 +1,12 @@
+<?xml version="1.0" ?>
+<vbox xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <setting />
+  <setting pref="extensions.inlinesettings2.bool1" type="bool" title="Bool 1" desc="Description Attribute"/>
+  <setting pref="extensions.inlinesettings2.bool2" type="bool" title="Bool 2">Description Text Node</setting>
+  <setting type="control" title="Button">
+    This is a test, <button label="button" />all this text should be visible
+  </setting>
+  <setting type="unsupported">
+    This setting should never appear
+  </setting>
+</vbox>
diff --git a/toolkit/mozapps/webextensions/test/browser/plugin_test.html b/toolkit/mozapps/webextensions/test/browser/plugin_test.html
new file mode 100644
index 000000000..0709eda06
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/plugin_test.html
@@ -0,0 +1,7 @@
+<!DOCTYPE html>
+<html>
+<head><meta charset="utf-8"></head>
+<body>
+<object id="test" width=200 height=200 type="application/x-test"></object>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/browser/redirect.sjs b/toolkit/mozapps/webextensions/test/browser/redirect.sjs
new file mode 100644
index 000000000..8f9d1c08a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/redirect.sjs
@@ -0,0 +1,5 @@
+function handleRequest(request, response) {
+  dump("*** Received redirect for " + request.queryString + "\n");
+  response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
+  response.setHeader("Location", request.queryString, false);
+}
diff --git a/toolkit/mozapps/webextensions/test/browser/releaseNotes.xhtml b/toolkit/mozapps/webextensions/test/browser/releaseNotes.xhtml
new file mode 100644
index 000000000..63ae07901
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/releaseNotes.xhtml
@@ -0,0 +1,15 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html lang="en-US" dir="ltr" xmlns="http://www.w3.org/1999/xhtml">
+<head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+    <title></title>
+</head>
+
+<body>
+  <h1>OMG, an update!!!!</h1>
+  <ul>
+    <li>Made everything more awesome</li>
+    <li>Added hot sauce</li>
+  </ul>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/browser/signed_hotfix.rdf b/toolkit/mozapps/webextensions/test/browser/signed_hotfix.rdf
new file mode 100644
index 000000000..39bd936c9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/signed_hotfix.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8" ?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:hotfix@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>https://example.com/browser/toolkit/mozapps/extensions/test/browser/signed_hotfix.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/signed_hotfix.xpi b/toolkit/mozapps/webextensions/test/browser/signed_hotfix.xpi
new file mode 100644
index 000000000..bd1890573
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/signed_hotfix.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/unsigned_hotfix.rdf b/toolkit/mozapps/webextensions/test/browser/unsigned_hotfix.rdf
new file mode 100644
index 000000000..2b4ba9362
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/unsigned_hotfix.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8" ?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:hotfix@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>https://example.com/browser/toolkit/mozapps/extensions/test/browser/unsigned_hotfix.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/browser/unsigned_hotfix.xpi b/toolkit/mozapps/webextensions/test/browser/unsigned_hotfix.xpi
new file mode 100644
index 000000000..f2d475bd2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/unsigned_hotfix.xpi
diff --git a/toolkit/mozapps/webextensions/test/browser/webapi_addon_listener.html b/toolkit/mozapps/webextensions/test/browser/webapi_addon_listener.html
new file mode 100644
index 000000000..56128fd9c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/webapi_addon_listener.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+  <meta charset="utf-8">
+</head>
+<body>
+<p id="result"></p>
+<script type="text/javascript">
+let events = [];
+let resultEl = document.getElementById("result");
+[ "onEnabling",
+  "onEnabled",
+  "onDisabling",
+  "onDisabled",
+  "onInstalling",
+  "onInstalled",
+  "onUninstalling",
+  "onUninstalled",
+  "onOperationCancelled",
+].forEach(event => {
+  navigator.mozAddonManager.addEventListener(event, data => {
+    let obj = {event, id: data.id, needsRestart: data.needsRestart};
+    events.push(JSON.stringify(obj));
+    resultEl.textContent = events.join('\n');
+  });
+});
+</script>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/browser/webapi_checkavailable.html b/toolkit/mozapps/webextensions/test/browser/webapi_checkavailable.html
new file mode 100644
index 000000000..141f09cc6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/webapi_checkavailable.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+  <meta charset="utf-8">
+</head>
+<body>
+<p id="result"></p>
+<script type="text/javascript">
+document.getElementById("result").textContent = ("mozAddonManager" in window.navigator);
+</script>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/browser/webapi_checkchromeframe.xul b/toolkit/mozapps/webextensions/test/browser/webapi_checkchromeframe.xul
new file mode 100644
index 000000000..76e642604
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/webapi_checkchromeframe.xul
@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <browser id="frame" disablehistory="true" flex="1" type="content"
+           src="https://example.com/browser/toolkit/mozapps/extensions/test/browser/webapi_checkavailable.html"/>
+</window>
diff --git a/toolkit/mozapps/webextensions/test/browser/webapi_checkframed.html b/toolkit/mozapps/webextensions/test/browser/webapi_checkframed.html
new file mode 100644
index 000000000..146769978
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/webapi_checkframed.html
@@ -0,0 +1,7 @@
+<!DOCTYPE html>
+
+<html>
+<body>
+<iframe id="frame" height="200" width="200" src="https://example.com/browser/toolkit/mozapps/extensions/test/browser/webapi_checkavailable.html">
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/browser/webapi_checknavigatedwindow.html b/toolkit/mozapps/webextensions/test/browser/webapi_checknavigatedwindow.html
new file mode 100644
index 000000000..ba3653310
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/browser/webapi_checknavigatedwindow.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+
+<html>
+<body>
+<script type="text/javascript">
+var nav, win;
+
+function openWindow() {
+  return new Promise(resolve => {
+    win = window.open(window.location);
+
+    win.addEventListener("load", function listener() {
+      nav = win.navigator;
+      resolve();
+    }, false);
+  });
+}
+
+function navigate() {
+  win.location = "http://example.com/";
+}
+
+function check() {
+  return "mozAddonManager" in nav;
+}
+</script>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/mochitest/.eslintrc.js b/toolkit/mozapps/webextensions/test/mochitest/.eslintrc.js
new file mode 100644
index 000000000..383da0f41
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/mochitest/.eslintrc.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = { // eslint-disable-line no-undef
+  "extends": [
+    "../../../../../testing/mochitest/mochitest.eslintrc.js"
+  ]
+};
diff --git a/toolkit/mozapps/webextensions/test/mochitest/file_bug687194.xpi b/toolkit/mozapps/webextensions/test/mochitest/file_bug687194.xpi
new file mode 100644
index 000000000..e215cffad
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/mochitest/file_bug687194.xpi
diff --git a/toolkit/mozapps/webextensions/test/mochitest/file_empty.html b/toolkit/mozapps/webextensions/test/mochitest/file_empty.html
new file mode 100644
index 000000000..b6c8a53b4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/mochitest/file_empty.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<html><head></head><body><span id="text">Nothing to see here</span></body></html>
diff --git a/toolkit/mozapps/webextensions/test/mochitest/mochitest.ini b/toolkit/mozapps/webextensions/test/mochitest/mochitest.ini
new file mode 100644
index 000000000..b14cfe87a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/mochitest/mochitest.ini
@@ -0,0 +1,9 @@
+[DEFAULT]
+support-files =
+  file_empty.html
+  file_bug687194.xpi
+
+[test_bug609794.html]
+[test_bug687194.html]
+skip-if = e10s || os == "android" # this test creates its own child process, no need to run it in e10s
+[test_bug887098.html]
diff --git a/toolkit/mozapps/webextensions/test/mochitest/test_bug609794.html b/toolkit/mozapps/webextensions/test/mochitest/test_bug609794.html
new file mode 100644
index 000000000..d13e6ef2f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/mochitest/test_bug609794.html
@@ -0,0 +1,27 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=609794
+-->
+<head>
+  <title>Test for Bug 609794</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=609794">Mozilla Bug 609794</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 609794 **/
+var obj = Object.create(window);
+is(Object.prototype.toString.call(obj.InstallTrigger), "[object InstallTriggerImpl]", "can get InstallTrigger through the prototype");
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/mochitest/test_bug687194.html b/toolkit/mozapps/webextensions/test/mochitest/test_bug687194.html
new file mode 100644
index 000000000..8f99ea73a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/mochitest/test_bug687194.html
@@ -0,0 +1,133 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for registering/unregistering chrome OOP</title>
+  <script type="application/javascript"
+          src="/tests/SimpleTest/SimpleTest.js">
+  </script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+
+  <script type="application/javascript;version=1.8">
+    "use strict";
+
+    SimpleTest.waitForExplicitFinish();
+
+    const childFrameURL =
+      "data:text/html,<!DOCTYPE HTML><html><body></body></html>";
+
+    function childFrameScript() {
+      "use strict";
+
+      var ios =
+          Components.classes["@mozilla.org/network/io-service;1"]
+                    .getService(Components.interfaces.nsIIOService);
+      let cr =
+          Components.classes["@mozilla.org/chrome/chrome-registry;1"]
+                    .getService(Ci.nsIXULChromeRegistry);
+      addMessageListener("test687194:resolveChromeURI", function(message) {
+        let result;
+        let threw = false;
+        try {
+            let uri = ios.newURI(message.data.URI, null, null);
+            result = cr.convertChromeURL(uri).spec;
+        } catch (e) {
+            threw = true;
+            result = "EXCEPTION: " + e;
+        }
+
+        message.target.sendAsyncMessage("test687194:resolveChromeURI:Answer",
+                                        { threw: threw, result: result });
+      });
+    }
+
+    let test;
+    function* testStructure(mm) {
+      let lastResult;
+
+      mm.addMessageListener("test687194:resolveChromeURI:Answer", function(msg) {
+        test.next(msg.data);
+      });
+
+      mm.sendAsyncMessage("test687194:resolveChromeURI",
+                          { URI: "chrome://bug687194/content/e10sbug.js" });
+      lastResult = yield;
+      is(lastResult.threw, true, "URI shouldn't resolve to begin with");
+
+      let { AddonManager } = SpecialPowers.Cu.import("resource://gre/modules/AddonManager.jsm", {});
+      const INSTALL_URI =
+        "http://mochi.test:8888/tests/toolkit/mozapps/extensions/test/mochitest/file_bug687194.xpi"
+      AddonManager.getInstallForURL(INSTALL_URI, (install) => {
+        install = SpecialPowers.wrap(install);
+        install.addListener(SpecialPowers.wrapCallbackObject({
+          onInstallEnded: function(install, addon) {
+            SimpleTest.executeSoon(() => test.next(addon));
+          }
+        }));
+        install.install();
+      }, "application/x-xpinstall");
+
+      let addon = SpecialPowers.wrap(yield);
+
+      mm.sendAsyncMessage("test687194:resolveChromeURI",
+                          { URI: "chrome://bug687194/content/e10sbug.js" });
+      lastResult = yield;
+      is(lastResult.threw, false, "able to resolve after the installation");
+
+      let listener = SpecialPowers.wrapCallbackObject({
+        onUninstalled: function(removedAddon) {
+          if (removedAddon.id === addon.id) {
+            AddonManager.removeAddonListener(listener);
+            SimpleTest.executeSoon(() => test.next());
+          }
+        }
+      });
+      AddonManager.addAddonListener(listener);
+      addon.uninstall();
+
+      yield;
+
+      mm.sendAsyncMessage("test687194:resolveChromeURI",
+                          { URI: "chrome://bug687194/content/e10sbug.js" });
+      lastResult = yield;
+      is(lastResult.threw, true, "should have unregistered the URI");
+      SimpleTest.finish();
+    }
+
+    function runTests() {
+      info("Browser prefs set.");
+
+      let iframe = document.createElement("iframe");
+      SpecialPowers.wrap(iframe).mozbrowser = true;
+      iframe.id = "iframe";
+      iframe.src = childFrameURL;
+
+      iframe.addEventListener("mozbrowserloadend", function() {
+        info("Got iframe load event.");
+        let mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
+        mm.loadFrameScript("data:,(" + childFrameScript.toString() + ")();",
+                           false);
+
+        test = testStructure(mm);
+        test.next();
+      });
+
+      document.body.appendChild(iframe);
+    }
+
+    addEventListener("load", function() {
+      info("Got load event.");
+
+      SpecialPowers.addPermission("browser", true, document);
+      SpecialPowers.pushPrefEnv({
+        "set": [
+          ["dom.ipc.browser_frames.oop_by_default", true],
+          ["dom.mozBrowserFramesEnabled", true],
+          ["browser.pagethumbnails.capturing_disabled", true]
+        ]
+      }, runTests);
+    });
+  </script>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/mochitest/test_bug887098.html b/toolkit/mozapps/webextensions/test/mochitest/test_bug887098.html
new file mode 100644
index 000000000..535799b27
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/mochitest/test_bug887098.html
@@ -0,0 +1,52 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=887098
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 887098</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+  <script type="application/javascript">
+
+  /** Test for Bug 887098 **/
+  SimpleTest.waitForExplicitFinish();
+  /* globals $,evalRef */
+
+  function loaded() {
+    var iwin = $('ifr').contentWindow;
+    var href = SpecialPowers.wrap(iwin).location.href;
+    if (/file_empty/.test(href)) {
+      window.evalRef = iwin.eval;
+      window.installTriggerRef = iwin.InstallTrigger; // Force lazy instantiation.
+      // about: is privileged, so we need to be privileged to load it.
+      SpecialPowers.wrap(iwin).location.href = 'about:';
+    } else {
+      is(href, 'about:', "Successfully navigated to about:");
+      try {
+        evalRef('InstallTrigger.install({URL: "chrome://global/skin/global.css"});');
+        ok(false, "Should have thrown when trying to install restricted URI from InstallTrigger");
+      } catch (e) {
+        // XXXgijs this test broke because of the switch to webidl. I'm told
+        // it has to do with compartments and the fact that we eval in "about:".
+        // Tracking in bug 1007671
+        todo(/permission/.test(e), "We should throw a security exception. Got: " + e);
+      }
+      SimpleTest.finish();
+    }
+  }
+
+  </script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=887098">Mozilla Bug 887098</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+
+</div>
+<iframe onload="loaded();" id="ifr" src="file_empty.html"></iframe>
+<pre id="test">
+</pre>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/moz.build b/toolkit/mozapps/webextensions/test/moz.build
new file mode 100644
index 000000000..716659198
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/moz.build
@@ -0,0 +1,19 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+DIRS += ['browser']
+
+BROWSER_CHROME_MANIFESTS += ['xpinstall/browser.ini']
+MOCHITEST_MANIFESTS += ['mochitest/mochitest.ini']
+
+TESTING_JS_MODULES += [
+    'AddonManagerTesting.jsm',
+]
+
+XPCSHELL_TESTS_MANIFESTS += [
+    'xpcshell/xpcshell-unpack.ini',
+    'xpcshell/xpcshell.ini',
+]
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/.eslintrc.js b/toolkit/mozapps/webextensions/test/xpcshell/.eslintrc.js
new file mode 100644
index 000000000..ba65517f9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/.eslintrc.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = { // eslint-disable-line no-undef
+  "extends": [
+    "../../../../../testing/xpcshell/xpcshell.eslintrc.js"
+  ]
+};
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/BootstrapMonitor.jsm b/toolkit/mozapps/webextensions/test/xpcshell/data/BootstrapMonitor.jsm
new file mode 100644
index 000000000..7c1e4aa9d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/BootstrapMonitor.jsm
@@ -0,0 +1,30 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+this.EXPORTED_SYMBOLS = [ "monitor" ];
+
+function notify(event, originalMethod, data, reason) {
+  let info = {
+    event,
+    data: Object.assign({}, data, {
+      installPath: data.installPath.path,
+      resourceURI: data.resourceURI.spec,
+    }),
+    reason
+  };
+
+  let subject = {wrappedJSObject: {data}};
+
+  Services.obs.notifyObservers(subject, "bootstrapmonitor-event", JSON.stringify(info));
+
+  // If the bootstrap scope already declares a method call it
+  if (originalMethod)
+    originalMethod(data, reason);
+}
+
+// Allows a simple one-line bootstrap script:
+// Components.utils.import("resource://xpcshelldata/bootstrapmonitor.jsm").monitor(this);
+this.monitor = function(scope) {
+  for (let event of ["install", "startup", "shutdown", "uninstall"]) {
+    scope[event] = notify.bind(null, event, scope[event]);
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_change.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_change.xml
new file mode 100644
index 000000000..a229a653a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_change.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="softblock1@tests.mozilla.org">
+      <versionRange severity="1" minVersion="2" maxVersion="3"/>
+    </emItem>
+    <emItem id="softblock2@tests.mozilla.org">
+      <versionRange severity="1" minVersion="2" maxVersion="3"/>
+    </emItem>
+    <emItem id="softblock3@tests.mozilla.org">
+      <versionRange severity="1" minVersion="2" maxVersion="3"/>
+    </emItem>
+    <emItem id="softblock4@tests.mozilla.org">
+      <versionRange severity="1" minVersion="2" maxVersion="3"/>
+    </emItem>
+    <emItem id="softblock5@tests.mozilla.org">
+      <versionRange severity="1" minVersion="2" maxVersion="3"/>
+    </emItem>
+    <emItem id="hardblock@tests.mozilla.org">
+      <versionRange minVersion="2" maxVersion="3"/>
+    </emItem>
+    <!-- Two RegExp matches, so test flags work - first shouldn't match. -->
+    <emItem id="/^RegExp/">
+      <versionRange severity="1" minVersion="2" maxVersion="3"/>
+    </emItem>
+    <emItem id="/^RegExp/i">
+      <versionRange severity="2" minVersion="2" maxVersion="3"/>
+    </emItem>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_update1.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_update1.rdf
new file mode 100644
index 000000000..588290968
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_update1.rdf
@@ -0,0 +1,144 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <RDF:Description about="urn:mozilla:extension:softblock1@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft1_2.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:softblock2@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft2_2.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:softblock3@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft3_2.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:softblock4@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft4_2.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:theme:softblock5@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft5_2.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:hardblock@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_hard1_2.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:regexpblock@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_regexp1_2.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_update2.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_update2.rdf
new file mode 100644
index 000000000..5c3747f5f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_update2.rdf
@@ -0,0 +1,144 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <RDF:Description about="urn:mozilla:extension:softblock1@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>3</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft1_3.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:softblock2@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>3</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft2_3.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:softblock3@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>3</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft3_3.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:softblock4@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>3</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft4_3.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:theme:softblock5@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>3</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft5_3.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:hardblock@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>3</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_hard1_3.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:regexpblock@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>3</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_regexp1_3.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_update3.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_update3.rdf
new file mode 100644
index 000000000..d60708414
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/addon_update3.rdf
@@ -0,0 +1,144 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <RDF:Description about="urn:mozilla:extension:softblock1@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>4</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft1_1.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:softblock2@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>4</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft2_1.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:softblock3@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>4</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft3_1.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:softblock4@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>4</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft4_1.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:theme:softblock5@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>4</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_soft5_1.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:hardblock@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>4</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_hard1_1.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:regexpblock@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>4</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>*</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/blocklist_regexp1_1.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/app_update.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/app_update.xml
new file mode 100644
index 000000000..85a66fe55
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/app_update.xml
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="softblock1@tests.mozilla.org">
+      <versionRange severity="1">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="2" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="softblock2@tests.mozilla.org">
+      <versionRange severity="1">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="2" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="softblock3@tests.mozilla.org">
+      <versionRange severity="1">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="2" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="softblock4@tests.mozilla.org">
+      <versionRange severity="1">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="2" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="softblock5@tests.mozilla.org">
+      <versionRange severity="1">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="2" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="hardblock@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="2" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="/^RegExp/">
+      <versionRange severity="1">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="2" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="/^RegExp/i">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="2" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/blocklist_update1.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/blocklist_update1.xml
new file mode 100644
index 000000000..87011cd39
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/blocklist_update1.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist"/>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/blocklist_update2.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/blocklist_update2.xml
new file mode 100644
index 000000000..867a34255
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/blocklist_update2.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="softblock1@tests.mozilla.org">
+      <versionRange severity="1"/>
+    </emItem>
+    <emItem id="softblock2@tests.mozilla.org">
+      <versionRange severity="1"/>
+    </emItem>
+    <emItem id="softblock3@tests.mozilla.org">
+      <versionRange severity="1"/>
+    </emItem>
+    <emItem id="softblock4@tests.mozilla.org">
+      <versionRange severity="1"/>
+    </emItem>
+    <emItem id="softblock5@tests.mozilla.org">
+      <versionRange severity="1"/>
+    </emItem>
+    <emItem id="hardblock@tests.mozilla.org"/>
+    <emItem id="/^RegExp/">
+      <versionRange severity="1"/>
+    </emItem>
+    <emItem id="/^RegExp/i"/>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/manual_update.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/manual_update.xml
new file mode 100644
index 000000000..df9276525
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/blocklistchange/manual_update.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="softblock1@tests.mozilla.org">
+      <versionRange severity="1" minVersion="1" maxVersion="2"/>
+    </emItem>
+    <emItem id="softblock2@tests.mozilla.org">
+      <versionRange severity="1" minVersion="1" maxVersion="2"/>
+    </emItem>
+    <emItem id="softblock3@tests.mozilla.org">
+      <versionRange severity="1" minVersion="1" maxVersion="2"/>
+    </emItem>
+    <emItem id="softblock4@tests.mozilla.org">
+      <versionRange severity="1" minVersion="1" maxVersion="2"/>
+    </emItem>
+    <emItem id="softblock5@tests.mozilla.org">
+      <versionRange severity="1" minVersion="1" maxVersion="2"/>
+    </emItem>
+    <emItem id="hardblock@tests.mozilla.org">
+      <versionRange minVersion="1" maxVersion="2"/>
+    </emItem>
+    <emItem id="/^RegExp/i">
+      <versionRange minVersion="1" maxVersion="2"/>
+    </emItem>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_block.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_block.xml
new file mode 100644
index 000000000..1f673ef2f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_block.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="test_bug455906_1@tests.mozilla.org" blockID="test_bug455906_1@tests.mozilla.org"/>
+    <emItem id="test_bug455906_2@tests.mozilla.org" blockID="test_bug455906_2@tests.mozilla.org"/>
+    <emItem id="test_bug455906_3@tests.mozilla.org" blockID="test_bug455906_3@tests.mozilla.org"/>
+    <emItem id="test_bug455906_4@tests.mozilla.org" blockID="test_bug455906_4@tests.mozilla.org"/>
+    <emItem id="test_bug455906_5@tests.mozilla.org" blockID="test_bug455906_5@tests.mozilla.org"/>
+    <emItem id="test_bug455906_6@tests.mozilla.org" blockID="test_bug455906_6@tests.mozilla.org"/>
+    <emItem id="test_bug455906_7@tests.mozilla.org" blockID="test_bug455906_7@tests.mozilla.org"/>
+  </emItems>
+  <pluginItems>
+    <pluginItem blockID="test_bug455906_plugin">
+      <match name="name" exp="^test_bug455906"/>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_empty.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_empty.xml
new file mode 100644
index 000000000..88d22f281
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_empty.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="dummy_bug455906_2@tests.mozilla.org"/>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_start.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_start.xml
new file mode 100644
index 000000000..daba6f4c1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_start.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="test_bug455906_4@tests.mozilla.org">
+      <versionRange severity="-1"/>
+    </emItem>
+    <emItem id="test_bug455906_5@tests.mozilla.org">
+      <versionRange severity="1"/>
+    </emItem>
+    <emItem id="test_bug455906_6@tests.mozilla.org">
+      <versionRange severity="2"/>
+    </emItem>
+    <emItem id="dummy_bug455906_1@tests.mozilla.org"/>
+  </emItems>
+  <pluginItems>
+    <pluginItem>
+      <match name="name" exp="^test_bug455906_4$"/>
+      <versionRange severity="0"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug455906_5$"/>
+      <versionRange severity="1"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug455906_6$"/>
+      <versionRange severity="2"/>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_warn.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_warn.xml
new file mode 100644
index 000000000..232fd0d07
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/bug455906_warn.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="test_bug455906_1@tests.mozilla.org">
+      <versionRange severity="-1"/>
+    </emItem>
+    <emItem id="test_bug455906_2@tests.mozilla.org">
+      <versionRange severity="-1"/>
+    </emItem>
+    <emItem id="test_bug455906_3@tests.mozilla.org">
+      <versionRange severity="-1"/>
+    </emItem>
+    <emItem id="test_bug455906_4@tests.mozilla.org">
+      <versionRange severity="-1"/>
+    </emItem>
+    <emItem id="test_bug455906_5@tests.mozilla.org">
+      <versionRange severity="-1"/>
+    </emItem>
+    <emItem id="test_bug455906_6@tests.mozilla.org">
+      <versionRange severity="-1"/>
+    </emItem>
+    <emItem id="test_bug455906_7@tests.mozilla.org">
+      <versionRange severity="-1"/>
+    </emItem>
+  </emItems>
+  <pluginItems>
+    <pluginItem>
+      <match name="name" exp="^test_bug455906"/>
+      <versionRange severity="-1"/>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/corrupt.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/corrupt.xpi
new file mode 100644
index 000000000..35d7bd5e5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/corrupt.xpi
@@ -0,0 +1 @@
+This is a corrupt zip file
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/corruptfile.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/corruptfile.xpi
new file mode 100644
index 000000000..0c30989aa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/corruptfile.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/empty.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/empty.xpi
new file mode 100644
index 000000000..74ed2b817
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/empty.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/from_sources/bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/data/from_sources/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/from_sources/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/from_sources/install.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/from_sources/install.rdf
new file mode 100644
index 000000000..f02a3869c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/from_sources/install.rdf
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bootstrap1@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Bootstrap 1</em:name>
+    <em:description>Test Description</em:description>
+
+    <em:iconURL>chrome://foo/skin/icon.png</em:iconURL>
+    <em:aboutURL>chrome://foo/content/about.xul</em:aboutURL>
+    <em:optionsURL>chrome://foo/content/options.xul</em:optionsURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/pluginInfoURL_block.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/pluginInfoURL_block.xml
new file mode 100644
index 000000000..75e252a46
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/pluginInfoURL_block.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+  </emItems>
+  <pluginItems>
+    <pluginItem blockID="test_plugin_wInfoURL">
+      <match name="name" exp="^test_with_infoURL"/>
+      <match name="version" exp="^5"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1" maxVersion="*"/>
+        </targetApplication>
+      </versionRange>
+      <infoURL>http://test.url.com/</infoURL>
+    </pluginItem>
+    <pluginItem blockID="test_plugin_wAltInfoURL">
+      <match name="name" exp="^test_with_altInfoURL"/>
+      <match name="version" exp="^5"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1" maxVersion="*"/>
+        </targetApplication>
+      </versionRange>
+      <infoURL>http://alt.test.url.com/</infoURL>
+    </pluginItem>
+    <pluginItem blockID="test_plugin_noInfoURL">
+      <match name="name" exp="^test_no_infoURL"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1" maxVersion="*"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <pluginItem blockID="test_plugin_newVersion">
+      <match name="name" exp="^test_newVersion"/>
+      <infoURL>http://test.url2.com/</infoURL>
+      <versionRange minVersion="1" maxVersion="2">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1" maxVersion="*"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/bad.txt b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/bad.txt
new file mode 100644
index 000000000..f17f98b15
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/bad.txt
@@ -0,0 +1 @@
+Not an xml file!
\ No newline at end of file
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/bad.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/bad.xml
new file mode 100644
index 000000000..0e3d415c4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/bad.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<foobar></barfoo>
\ No newline at end of file
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/bad2.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/bad2.xml
new file mode 100644
index 000000000..55ad1c7d5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/bad2.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<test></test>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/empty.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/empty.xml
new file mode 100644
index 000000000..42cb20bd0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/empty.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<updates>
+  <addons></addons>
+</updates>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/good.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/good.xml
new file mode 100644
index 000000000..e1da86fa5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/good.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<updates>
+  <addons>
+    <addon id="test1" URL="http://example.com/test1.xpi"/>
+    <addon id="test2" URL="http://example.com/test2.xpi" hashFunction="md5" hashValue="djhfgsjdhf"/>
+    <addon id="test3" URL="http://example.com/test3.xpi" version="1.0" size="45"/>
+    <addon id="test4"/>
+    <addon URL="http://example.com/test5.xpi"/>
+  </addons>
+</updates>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/missing.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/missing.xml
new file mode 100644
index 000000000..8c9501478
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/missing.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<updates></updates>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/unsigned.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/unsigned.xpi
new file mode 100644
index 000000000..51b00475a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/productaddons/unsigned.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_1/bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_1/bootstrap.js
new file mode 100644
index 000000000..0cf01d319
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_1/bootstrap.js
@@ -0,0 +1,29 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const VERSION = 1;
+
+// Test steps chain from pref observers on *_reason,
+// so always set that last
+function install(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.installed_version", VERSION);
+  Services.prefs.setIntPref("bootstraptest.install_oldversion", data.oldVersion);
+  Services.prefs.setIntPref("bootstraptest.install_reason", reason);
+}
+
+function startup(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.active_version", VERSION);
+  Services.prefs.setIntPref("bootstraptest.startup_oldversion", data.oldVersion);
+  Services.prefs.setIntPref("bootstraptest.startup_reason", reason);
+}
+
+function shutdown(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.active_version", 0);
+  Services.prefs.setIntPref("bootstraptest.shutdown_newversion", data.newVersion);
+  Services.prefs.setIntPref("bootstraptest.shutdown_reason", reason);
+}
+
+function uninstall(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.installed_version", 0);
+  Services.prefs.setIntPref("bootstraptest.uninstall_newversion", data.newVersion);
+  Services.prefs.setIntPref("bootstraptest.uninstall_reason", reason);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_1/install.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_1/install.rdf
new file mode 100644
index 000000000..9d08c357c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_1/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Add-on</em:name>
+    <em:updateURL>http://localhost:4444/update.rdf</em:updateURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>2</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_1/test.txt b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_1/test.txt
new file mode 100644
index 000000000..11686f61c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_1/test.txt
@@ -0,0 +1 @@
+This test file can be altered to break signing checks.
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_2/bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_2/bootstrap.js
new file mode 100644
index 000000000..718c82be4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_2/bootstrap.js
@@ -0,0 +1,29 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const VERSION = 2;
+
+// Test steps chain from pref observers on *_reason,
+// so always set that last
+function install(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.installed_version", VERSION);
+  Services.prefs.setIntPref("bootstraptest.install_oldversion", data.oldVersion);
+  Services.prefs.setIntPref("bootstraptest.install_reason", reason);
+}
+
+function startup(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.active_version", VERSION);
+  Services.prefs.setIntPref("bootstraptest.startup_oldversion", data.oldVersion);
+  Services.prefs.setIntPref("bootstraptest.startup_reason", reason);
+}
+
+function shutdown(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.active_version", 0);
+  Services.prefs.setIntPref("bootstraptest.shutdown_newversion", data.newVersion);
+  Services.prefs.setIntPref("bootstraptest.shutdown_reason", reason);
+}
+
+function uninstall(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.installed_version", 0);
+  Services.prefs.setIntPref("bootstraptest.uninstall_newversion", data.newVersion);
+  Services.prefs.setIntPref("bootstraptest.uninstall_reason", reason);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_2/install.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_2/install.rdf
new file mode 100644
index 000000000..0a345dd92
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_2/install.rdf
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+    <em:bootstrap>true</em:bootstrap>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Add-on</em:name>
+    <em:updateURL>http://localhost:4444/update.rdf</em:updateURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>4</em:minVersion>
+        <em:maxVersion>6</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_2/test.txt b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_2/test.txt
new file mode 100644
index 000000000..11686f61c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/bootstrap_2/test.txt
@@ -0,0 +1 @@
+This test file can be altered to break signing checks.
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/hotfix_badid.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/hotfix_badid.xpi
new file mode 100644
index 000000000..9d6f0c708
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/hotfix_badid.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/hotfix_broken.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/hotfix_broken.xpi
new file mode 100644
index 000000000..4496a90cf
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/hotfix_broken.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/hotfix_good.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/hotfix_good.xpi
new file mode 100644
index 000000000..e61e3c721
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/hotfix_good.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_63_hash.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_63_hash.xpi
new file mode 100644
index 000000000..1682a7506
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_63_hash.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_63_plain.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_63_plain.xpi
new file mode 100644
index 000000000..cd67e25fc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_63_plain.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_64_hash.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_64_hash.xpi
new file mode 100644
index 000000000..e4040a274
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_64_hash.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_64_plain.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_64_plain.xpi
new file mode 100644
index 000000000..ca453b9d5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_64_plain.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_65_hash.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_65_hash.xpi
new file mode 100644
index 000000000..69579d2dc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/long_65_hash.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_badid.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_badid.xpi
new file mode 100644
index 000000000..6e23eb214
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_badid.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_broken.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_broken.xpi
new file mode 100644
index 000000000..0ba0f30d1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_broken.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_signed.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_signed.xpi
new file mode 100644
index 000000000..33101f63c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_signed.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_unsigned.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_unsigned.xpi
new file mode 100644
index 000000000..3146870d8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/multi_unsigned.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_1/install.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_1/install.rdf
new file mode 100644
index 000000000..97ae60988
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_1/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test@tests.mozilla.org</em:id>
+    <em:version>1.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Add-on</em:name>
+    <em:updateURL>http://localhost:4444/update.rdf</em:updateURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>2</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_1/test.txt b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_1/test.txt
new file mode 100644
index 000000000..11686f61c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_1/test.txt
@@ -0,0 +1 @@
+This test file can be altered to break signing checks.
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_2/install.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_2/install.rdf
new file mode 100644
index 000000000..df2fd8081
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_2/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>test@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Test Add-on</em:name>
+    <em:updateURL>http://localhost:4444/update.rdf</em:updateURL>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>4</em:minVersion>
+        <em:maxVersion>6</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_2/test.txt b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_2/test.txt
new file mode 100644
index 000000000..11686f61c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/nonbootstrap_2/test.txt
@@ -0,0 +1 @@
+This test file can be altered to break signing checks.
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/preliminary_bootstrap_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/preliminary_bootstrap_2.xpi
new file mode 100644
index 000000000..ec38fcc65
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/preliminary_bootstrap_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_bootstrap_1.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_bootstrap_1.xpi
new file mode 100644
index 000000000..fc2842399
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_bootstrap_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_bootstrap_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_bootstrap_2.xpi
new file mode 100644
index 000000000..327c8a187
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_bootstrap_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_bootstrap_badid_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_bootstrap_badid_2.xpi
new file mode 100644
index 000000000..efad21d1b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_bootstrap_badid_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_nonbootstrap_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_nonbootstrap_2.xpi
new file mode 100644
index 000000000..d6ddbcec3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_nonbootstrap_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_nonbootstrap_badid_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_nonbootstrap_badid_2.xpi
new file mode 100644
index 000000000..5898d83e4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/signed_nonbootstrap_badid_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/unsigned_bootstrap_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/unsigned_bootstrap_2.xpi
new file mode 100644
index 000000000..9d50f0825
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/unsigned_bootstrap_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/unsigned_nonbootstrap_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/unsigned_nonbootstrap_2.xpi
new file mode 100644
index 000000000..6ba1efd72
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/signing_checks/unsigned_nonbootstrap_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system1_1.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system1_1.xpi
new file mode 100644
index 000000000..2fc2fd189
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system1_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system1_1_badcert.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system1_1_badcert.xpi
new file mode 100644
index 000000000..e7e50c8ea
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system1_1_badcert.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system1_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system1_2.xpi
new file mode 100644
index 000000000..a858cf74a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system1_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system2_1.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system2_1.xpi
new file mode 100644
index 000000000..911632e49
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system2_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system2_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system2_2.xpi
new file mode 100644
index 000000000..102a053bb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system2_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system2_3.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system2_3.xpi
new file mode 100644
index 000000000..295e77611
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system2_3.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system3_1.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system3_1.xpi
new file mode 100644
index 000000000..954995619
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system3_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system3_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system3_2.xpi
new file mode 100644
index 000000000..dc8632aef
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system3_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system3_3.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system3_3.xpi
new file mode 100644
index 000000000..3f818172a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system3_3.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system4_1.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system4_1.xpi
new file mode 100644
index 000000000..1f70b1a75
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system4_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system5_1.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system5_1.xpi
new file mode 100644
index 000000000..fc636e97f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system5_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system6_1_unpack.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system6_1_unpack.xpi
new file mode 100644
index 000000000..ff620966d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system6_1_unpack.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system6_2_notBootstrap.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system6_2_notBootstrap.xpi
new file mode 100644
index 000000000..e474dbd59
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system6_2_notBootstrap.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system6_3_notMultiprocess.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system6_3_notMultiprocess.xpi
new file mode 100644
index 000000000..1ccde90c5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system6_3_notMultiprocess.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_complete.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_complete.xpi
new file mode 100644
index 000000000..94d9e47d2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_complete.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_complete_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_complete_2.xpi
new file mode 100644
index 000000000..28c8561c6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_complete_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer.xpi
new file mode 100644
index 000000000..daf55c0d4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer_2.xpi
new file mode 100644
index 000000000..75cacbbc8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer_also.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer_also.xpi
new file mode 100644
index 000000000..2eb6b7fc9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer_also.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer_also_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer_also_2.xpi
new file mode 100644
index 000000000..fb588b3e0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_defer_also_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_ignore.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_ignore.xpi
new file mode 100644
index 000000000..7a5eb265d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_ignore.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_ignore_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_ignore_2.xpi
new file mode 100644
index 000000000..dc6749355
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_delay_ignore_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_failed_update.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_failed_update.xpi
new file mode 100644
index 000000000..3c673ac2e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/system_addons/system_failed_update.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository.xml
new file mode 100644
index 000000000..0bebca2c1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository.xml
@@ -0,0 +1,820 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="1111">
+  <!-- Passes all requirements -->
+  <addon>
+    <name>PASS</name>
+    <type id="1">Extension</type>
+    <guid>test1@tests.mozilla.org</guid>
+    <version>1.1</version>
+    <authors>
+      <author>
+        <name>Test Creator 1</name>
+        <link>http://localhost:%PORT%/creator1.html</link>
+      </author>
+    </authors>
+    <status id="8">Preliminarily Reviewed</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <!-- Test that a negative rating is ignored -->
+    <rating>-2</rating>
+    <!-- Test that a <reviews> with a blank review URL is ignored -->
+    <reviews num="   1111   ">   </reviews>
+    <!-- Test that a negative total_downloads is ignored -->
+    <total_downloads>-2</total_downloads>
+    <install>http://localhost:%PORT%/test1.xpi</install>
+  </addon>
+
+  <!-- Passes requirements. Tests optional attributes. Also tests that
+       integer properties that are NaN in the XML are ignored -->
+  <addon>
+    <name>PASS</name>
+    <!-- Test that extensions pass -->
+    <type id="1">Extension</type>
+    <guid>test2@tests.mozilla.org</guid>
+    <version>1.2</version>
+    <authors>
+      <!-- Test that the first author becomes the creator,
+           and the second one is a developer -->
+      <author>
+        <name>Test Creator 2</name>
+        <link>http://localhost:%PORT%/creator2.html</link>
+      </author>
+      <author>
+        <name>Test Developer 2</name>
+        <link>http://localhost:%PORT%/developer2.html</link>
+      </author>
+    </authors>
+    <summary>&lt;h1&gt;Test Summary 2&lt;/h1&gt;&lt;p&gt;paragraph&lt;/p&gt;</summary>
+    <description>Test Description 2&lt;br&gt;newline</description>
+    <developer_comments>Test Developer
+                        Comments 2</developer_comments>
+    <eula>Test EULA 2</eula>
+    <icon size="64">http://localhost:%PORT%/icon2-64.png</icon>
+    <icon size="48">http://localhost:%PORT%/icon2-48.png</icon>
+    <icon size="32">http://localhost:%PORT%/icon2-32.png</icon>
+    <status id="4">Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <!-- Test that multiple preview images are correctly parsed -->
+    <previews>
+      <preview primary="0">
+        <full type="image/png">http://localhost:%PORT%/full1-2.png</full>
+        <thumbnail type="image/png">http://localhost:%PORT%/thumbnail1-2.png</thumbnail>
+      </preview>
+      <preview primary="0">
+        <full type="image/png">http://localhost:%PORT%/full2-2.png</full>
+        <thumbnail type="image/png">http://localhost:%PORT%/thumbnail2-2.png</thumbnail>
+        <caption>Caption 2</caption>
+      </preview>
+    </previews>
+    <rating>NaN</rating>
+    <!-- Test that learnmore is used as the add-on's homepageURL
+         if there is no homepage defined -->
+    <learnmore>http://localhost:%PORT%/learnmore2.html</learnmore>
+    <homepage/>
+    <support>http://localhost:%PORT%/support2.html</support>
+    <contribution_data>
+      <link>http://localhost:%PORT%/contribution2.html</link>
+      <meet_developers>http://localhost:%PORT%/meetDevelopers2.html</meet_developers>
+    </contribution_data>
+    <reviews num="NaN">http://localhost:%PORT%/review2.html</reviews>
+    <total_downloads>NaN</total_downloads>
+    <weekly_downloads>NaN</weekly_downloads>
+    <daily_users>NaN</daily_users>
+    <last_updated epoch="NaN">Not an acual date</last_updated>
+    <install size="NaN" os="ALL">http://localhost:%PORT%/test2.xpi</install>
+  </addon>
+
+  <!-- Passes requirements. Tests optional attributes with extra whitespace. -->
+  <addon>
+    <name>   PASS   </name>
+    <!-- Test that themes pass -->
+    <type id="   2   ">Theme</type>
+    <guid>   test3@tests.mozilla.org   </guid>
+    <version>   1.3   </version>
+    <authors>
+      <!-- Test that authors with blank names are ignored -->
+      <author>
+        <name>    </name>
+        <link>   http://localhost:%PORT%/ignore3.html   </link>
+      </author>
+      <!-- Test that authors with blank links are ignored -->
+      <author>
+        <name>   Test Creator Ignore   </name>
+        <link>   </link>
+      </author>
+      <author>
+        <name>   Test Creator 3   </name>
+        <link>   http://localhost:%PORT%/creator3.html   </link>
+      </author>
+      <author>
+        <name>   First Test Developer 3   </name>
+        <link>   http://localhost:%PORT%/developer1-3.html   </link>
+      </author>
+      <author>
+        <name>    </name>
+        <link>    </link>
+      </author>
+      <author>
+        <name>   Second Test Developer 3   </name>
+        <link>   http://localhost:%PORT%/developer2-3.html   </link>
+      </author>
+    </authors>
+    <summary>   Test Summary 3   </summary>
+    <description>   Test Description 3&lt;br&gt;&lt;ul&gt;&lt;li&gt;List item 1&lt;li&gt;List item 2&lt;/ul&gt;   </description>
+    <developer_comments>   Test Developer Comments 3   </developer_comments>
+    <eula>   Test EULA 3   </eula>
+    <icon size="32">   http://localhost:%PORT%/icon3.png   </icon>
+    <status id="   8   ">Preliminarily Reviewed</status>
+    <!-- Test that an incompatible + compatible application list passes -->
+    <compatible_applications>
+      <application>
+        <appID>   unknown@tests.mozilla.org   </appID>
+        <min_version>   1   </min_version>
+        <max_version>   1   </max_version>
+      </application>
+      <application>
+        <appID>   xpcshell@tests.mozilla.org   </appID>
+        <min_version>   1   </min_version>
+        <max_version>   1   </max_version>
+      </application>
+    </compatible_applications>
+    <!-- Test that primary images appear first in the add-on's screenshots array -->
+    <previews>
+      <preview primary="   0   ">
+        <full type="   image/png   ">   http://localhost:%PORT%/full2-3.png   </full>
+        <caption>   Caption 2 - 3   </caption>
+      </preview>
+      <!-- Test that a preview without a <full> element is ignored -->
+      <preview primary="   0   ">
+        <caption>   Caption ignore - 3   </caption>
+      </preview>
+      <!-- Test that a preview with an empty <full> element is ignored -->
+      <preview primary="   0   ">
+        <full type="   image/png   ">   </full>
+        <caption>   Caption ignore - 3   </caption>
+      <preview primary="   1   ">
+        <full type="   image/png   ">   http://localhost:%PORT%/full1-3.png   </full>
+        <thumbnail type="   image/png   ">   http://localhost:%PORT%/thumbnail1-3.png   </thumbnail>
+        <caption>   Caption 1 - 3   </caption>
+      </preview>
+      <preview primary="   0   ">
+        <full type="   image/png   ">   http://localhost:%PORT%/full3-3.png   </full>
+        <thumbnail type="   image/png   ">   http://localhost:%PORT%/thumbnail3-3.png   </thumbnail>
+        <caption>   Caption 3 - 3   </caption>
+      </preview>
+      </preview>
+    </previews>
+    <!-- Test that a rating between 1 and 5 is correctly parsed -->
+    <rating>   2   </rating>
+    <!-- Test that hompage is used as the add-on's homepageURL
+         even if learnmore is defined -->
+    <learnmore>   http://localhost:%PORT%/learnmore3.html   </learnmore>
+    <homepage>   http://localhost:%PORT%/homepage3.html   </homepage>
+    <support>   http://localhost:%PORT%/support3.html   </support>
+    <contribution_data>
+      <link>   http://localhost:%PORT%/contribution3.html   </link>
+      <suggested_amount currency="USD">   $11.11   </suggested_amount>
+      <meet_developers>   http://localhost:%PORT%/meetDevelopers3.html   </meet_developers>
+    </contribution_data>
+    <reviews num="   1111   ">   http://localhost:%PORT%/review3.html   </reviews>
+    <total_downloads>   2222   </total_downloads>
+    <weekly_downloads>   3333   </weekly_downloads>
+    <daily_users>   4444   </daily_users>
+    <last_updated epoch="   1265033045   ">   2010-02-01T14:04:05Z   </last_updated>
+    <!-- Test that an incompatible install is ignored -->
+    <install size="   9999   " os="   UNKNOWN   ">   http://localhost:%PORT%/fail3.xpi   </install>
+    <!-- Test that OS matching is case-insensitive -->
+    <install size="   5555   " os="   xpCShell   " hash="   sha1:c26f0b0d62e5dcddcda95074d3f3fedb9bbc26e3   ">   http://localhost:%PORT%/test3.xpi   </install>
+  </addon>
+
+  <!-- Fails because name is undefined -->
+  <addon>
+    <type id="1">Extension</type>
+    <guid>test4@tests.mozilla.org</guid>
+    <version>1.4</version>
+    <authors><author><name>Test Creator 4</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with undefined name should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test4.xpi</install>
+  </addon>
+
+  <!-- Fails because name is empty-->
+  <addon>
+    <name>   </name>
+    <type id="1">Extension</type>
+    <guid>test5@tests.mozilla.org</guid>
+    <version>1.5</version>
+    <authors><author><name>Test Creator 5</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with empty name should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test5.xpi</install>
+  </addon>
+
+  <!-- Fails because type is undefined -->
+  <addon>
+    <name>FAIL</name>
+    <guid>test6@tests.mozilla.org</guid>
+    <version>1.6</version>
+    <authors><author><name>Test Creator 6</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with undefined type should be ignored</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test6.xpi</install>
+  </addon>
+
+  <!-- Fails because type is empty -->
+  <addon>
+    <name>FAIL</name>
+    <type id="">Empty id attribute</type>
+    <guid>test7@tests.mozilla.org</guid>
+    <version>1.7</version>
+    <authors><author><name>Test Creator 7</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with empty type should be ignored</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test7.xpi</install>
+  </addon>
+
+  <!-- Fails because type is unknown -->
+  <addon>
+    <name>FAIL</name>
+    <type id="9999">Unknown</type>
+    <guid>test8@tests.mozilla.org</guid>
+    <version>1.8</version>
+    <authors><author><name>Test Creator 8</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with unknown type should be ignored</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test8.xpi</install>
+  </addon>
+
+  <!-- Fails because guid is undefined -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <version>1.9</version>
+    <authors><author><name>Test Creator 9</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with undefined guid should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test9.xpi</install>
+  </addon>
+
+  <!-- Fails because guid is empty -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>   </guid>
+    <version>1.10</version>
+    <authors><author><name>Test Creator 10</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with empty guid should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test10.xpi</install>
+  </addon>
+
+  <!-- Fails because guid matches previously successful result -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test1@tests.mozilla.org</guid>
+    <version>1.11</version>
+    <authors><author><name>Test Creator 11</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with a guid that matches a previously successful result should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test11.xpi</install>
+  </addon>
+
+  <!-- Fails because guid matches already installed add-on -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test_AddonRepository_1@tests.mozilla.org</guid>
+    <version>1.12</version>
+    <authors><author><name>Test Creator 12</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with a guid that matches an installed Addon should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test12.xpi</install>
+  </addon>
+
+  <!-- Fails because version is undefined -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test13@tests.mozilla.org</guid>
+    <authors><author><name>Test Creator 13</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with undefined version should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test13.xpi</install>
+  </addon>
+
+  <!-- Fails because version is empty -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test14@tests.mozilla.org</guid>
+    <version>   </version>
+    <authors><author><name>Test Creator 14</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with empty version should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test14.xpi</install>
+  </addon>
+
+  <!-- Fails because authors undefined -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test15@tests.mozilla.org</guid>
+    <version>1.15</version>
+    <status id="4">Public</status>
+    <summary>Add-on with undefined authors should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test15.xpi</install>
+  </addon>
+
+  <!-- Fails because it has no defined author elements -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test16@tests.mozilla.org</guid>
+    <version>1.16</version>
+    <authors></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with no defined author elements should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test16.xpi</install>
+  </addon>
+
+  <!-- Fails because no non-empty author elements -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test17@tests.mozilla.org</guid>
+    <version>1.17</version>
+    <authors>
+      <author><name></name></author>
+      <author><name></name>   </author>
+    </authors>
+    <status id="4">Public</status>
+    <summary>Add-on with no non-empty author elements should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test17.xpi</install>
+  </addon>
+
+  <!-- Fails because status is undefined -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test18@tests.mozilla.org</guid>
+    <version>1.18</version>
+    <authors><author><name>Test Creator 18</name></author></authors>
+    <summary>Add-on with undefined status should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test18.xpi</install>
+  </addon>
+
+  <!-- Fails because status is not Public -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test19@tests.mozilla.org</guid>
+    <version>1.19</version>
+    <authors><author><name>Test Creator 19</name></author></authors>
+    <status id="9999">Unknown</status>
+    <summary>Add-on with non-Public status should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test19.xpi</install>
+  </addon>
+
+  <!-- Fails because compatible_applications is undefined -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test20@tests.mozilla.org</guid>
+    <version>1.20</version>
+    <authors><author><name>Test Creator 20</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with undefined compatible_applications should be ignored.</summary>
+    <install>http://localhost:%PORT%/test20.xpi</install>
+  </addon>
+
+  <!-- Fails because no compatible applications matched -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test21@tests.mozilla.org</guid>
+    <version>1.21</version>
+    <authors><author><name>Test Creator 21</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with no compatible applications should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>unknown@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test21.xpi</install>
+  </addon>
+
+  <!-- Fails because compatible application's min version is undefined -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test22@tests.mozilla.org</guid>
+    <version>1.22</version>
+    <authors><author><name>Test Creator 22</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with too high of a compatible application min version should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <max_version>2.0</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test22.xpi</install>
+  </addon>
+
+  <!-- Fails because compatible application's min version too high -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test23@tests.mozilla.org</guid>
+    <version>1.23</version>
+    <authors><author><name>Test Creator 23</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with too high of a compatible application min version should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1.1</min_version>
+        <max_version>2.0</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test23.xpi</install>
+  </addon>
+
+  <!-- Fails because compatible application's max version is undefined -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test24@tests.mozilla.org</guid>
+    <version>1.24</version>
+    <authors><author><name>Test Creator 24</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with too low of a compatible application max version should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>0.9</min_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test24.xpi</install>
+  </addon>
+
+  <!-- Fails because compatible application's max version is too low -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test25@tests.mozilla.org</guid>
+    <version>1.25</version>
+    <authors><author><name>Test Creator 25</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with too low of a compatible application max version should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>0.9</min_version>
+        <max_version>0.9.9</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test25.xpi</install>
+  </addon>
+
+  <!-- Fails because XPI URL is undefined -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test26@tests.mozilla.org</guid>
+    <version>1.26</version>
+    <authors><author><name>Test Creator 26</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with undefined XPI URL should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+  </addon>
+
+  <!-- Fails because XPI URL is empty -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test27@tests.mozilla.org</guid>
+    <version>1.27</version>
+    <authors><author><name>Test Creator 27</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with an empty XPI URL should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>   </install>
+  </addon>
+
+  <!-- Fails because install not compatible with OS -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test28@tests.mozilla.org</guid>
+    <version>1.28</version>
+    <authors><author><name>Test Creator 28</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with no installs with compatible OS should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install os="UNKNOWN1">http://localhost:%PORT%/test28.xpi</install>
+    <install os="UNKNOWN2">http://localhost:%PORT%/test28.xpi</install>
+  </addon>
+
+  <!-- Fails because XPI URL matches an installing AddonInstall -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test29@tests.mozilla.org</guid>
+    <version>1.29</version>
+    <authors><author><name>Test Creator 29</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with an XPI URL that matches an installing AddonInstall should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/addons/test_AddonRepository_2.xpi</install>
+  </addon>
+
+  <!-- Passes because the add-on has the right payment info -->
+  <addon>
+    <name>PASS</name>
+    <type id="1">Extension</type>
+    <guid>purchase1@tests.mozilla.org</guid>
+    <version>2.0</version>
+    <authors>
+      <author>
+        <name>Test Creator - Last Passing</name>
+        <link>http://localhost:%PORT%/creatorLastPassing.html</link>
+      </author>
+    </authors>
+    <status id="4">Public</status>
+    <all_compatible_os>
+      <os>ALL</os>
+    </all_compatible_os>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <rating>5</rating>
+    <payment_data>
+      <link>http://localhost:%PORT%/purchaseURL1</link>
+      <amount amount="5">$5</amount>
+    </payment_data>
+  </addon>
+
+  <!-- Passes because the add-on has the right payment info -->
+  <addon>
+    <name>PASS</name>
+    <type id="1">Extension</type>
+    <guid>purchase2@tests.mozilla.org</guid>
+    <version>2.0</version>
+    <authors>
+      <author>
+        <name>Test Creator - Last Passing</name>
+        <link>http://localhost:%PORT%/creatorLastPassing.html</link>
+      </author>
+    </authors>
+    <status id="4">Public</status>
+    <all_compatible_os>
+      <os>XPCShell</os>
+    </all_compatible_os>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <rating>5</rating>
+    <payment_data>
+      <link>http://localhost:%PORT%/purchaseURL2</link>
+      <amount amount="10.0">$10</amount>
+    </payment_data>
+  </addon>
+
+  <!-- Fails because the add-on doesn't match the platform -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>purchase3@tests.mozilla.org</guid>
+    <version>2.0</version>
+    <authors>
+      <author>
+        <name>Test Creator - Last Passing</name>
+        <link>http://localhost:%PORT%/creatorLastPassing.html</link>
+      </author>
+    </authors>
+    <status id="4">Public</status>
+    <all_compatible_os>
+      <os>FOO</os>
+    </all_compatible_os>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <rating>5</rating>
+    <payment_data>
+      <link>http://localhost:%PORT%/purchaseURL3</link>
+      <amount amount="10">$10</amount>
+    </payment_data>
+  </addon>
+
+  <!-- Passes because the Addon that has a matching XPI URL
+       has a state = STATE_AVAILABLE (non-active install). This is the
+       last passing add-on. -->
+  <addon>
+    <name>PASS</name>
+    <type id="1">Extension</type>
+    <guid>test-lastPassing@tests.mozilla.org</guid>
+    <version>2.0</version>
+    <authors>
+      <author>
+        <name>Test Creator - Last Passing</name>
+        <link>http://localhost:%PORT%/creatorLastPassing.html</link>
+      </author>
+    </authors>
+    <status id="4">Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <!-- Test that a rating > 5 becomes a rating = 5 -->
+    <rating>10</rating>
+    <install>http://localhost:%PORT%/addons/test_AddonRepository_3.xpi</install>
+  </addon>
+
+  <!-- Fails because of MAX_RESULTS limit. The previous <addon> should
+       be the last passing add-on in order to correctly test the limit. -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test-surpassesLimit@tests.mozilla.org</guid>
+    <version>9.9</version>
+    <authors><author><name>Test Creator - Surpasses Limit</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on should not be added because doing so would surpass MAX_RESULTS limit</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test-surpassesLimit.xpi</install>
+  </addon>
+</searchresults>
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_cache.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_cache.xml
new file mode 100644
index 000000000..f707f1217
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_cache.xml
@@ -0,0 +1,182 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="1111">
+  <addon>
+    <name>Repo Add-on 1</name>
+    <type id="1">Extension</type>
+    <guid>test_AddonRepository_1@tests.mozilla.org</guid>
+    <version>2.1</version>
+    <authors>
+      <author>
+        <name>Repo Add-on 1 - Creator</name>
+        <link>http://localhost:4444/repo/1/creator.html</link>
+      </author>
+      <author>
+        <name>Repo Add-on 1 - First Developer</name>
+        <link>http://localhost:4444/repo/1/firstDeveloper.html</link>
+      </author>
+      <author>
+        <name>Repo Add-on 1 - Second Developer</name>
+        <link>http://localhost:4444/repo/1/secondDeveloper.html</link>
+      </author>
+    </authors>
+    <summary>Repo Add-on 1 - Description&lt;br&gt;Second line</summary>
+    <description>&lt;p&gt;Repo Add-on 1 - Full Description &amp;amp; some extra&lt;/p&gt;</description>
+    <eula>Repo Add-on 1 - EULA</eula>
+    <developer_comments>Repo Add-on 1
+                        Developer Comments</developer_comments>
+    <icon size="32">http://localhost/repo/1/icon.png</icon>
+    <status id="4">Public</status>
+    <rating>1</rating>
+    <learnmore>http://localhost/repo/1/learnmore.html</learnmore>
+    <homepage>http://localhost/repo/1/homepage.html</homepage>
+    <support>http://localhost/repo/1/support.html</support>
+    <contribution_data>
+      <link>http://localhost/repo/1/contribution.html</link>
+      <suggested_amount currency="USD">$11.11</suggested_amount>
+      <meet_developers>http://localhost/repo/1/meetDevelopers.html</meet_developers>
+    </contribution_data>
+    <reviews num="1111">http://localhost/repo/1/review.html</reviews>
+    <total_downloads>2221</total_downloads>
+    <weekly_downloads>3331</weekly_downloads>
+    <daily_users>4441</daily_users>
+    <last_updated epoch="9">1970-01-01T00:00:09Z</last_updated>
+    <install size="9">http://localhost:4444/repo/1/install.xpi</install>
+  </addon>
+
+  <addon>
+    <name>Repo Add-on 2</name>
+    <type id="2">Theme</type>
+    <guid>test_AddonRepository_2@tests.mozilla.org</guid>
+    <version>2.2</version>
+    <authors>
+      <author>
+        <name>Repo Add-on 2 - Creator</name>
+        <link>http://localhost:4444/repo/2/creator.html</link>
+      </author>
+      <author>
+        <name>Repo Add-on 2 - First Developer</name>
+        <link>http://localhost:4444/repo/2/firstDeveloper.html</link>
+      </author>
+      <author>
+        <name>Repo Add-on 2 - Second Developer</name>
+        <link>http://localhost:4444/repo/2/secondDeveloper.html</link>
+      </author>
+    </authors>
+    <summary>Repo Add-on 2 - Description</summary>
+    <description>Repo Add-on 2 - Full Description</description>
+    <eula>Repo Add-on 2 - EULA</eula>
+    <developer_comments>Repo Add-on 2 - Developer Comments</developer_comments>
+    <icon size="32">http://localhost/repo/2/icon.png</icon>
+    <status id="9">Unknown</status>
+    <previews>
+      <preview primary="1">
+        <full type="image/png">http://localhost:4444/repo/2/firstFull.png</full>
+        <thumbnail type="image/png">http://localhost:4444/repo/2/firstThumbnail.png</thumbnail>
+        <caption>Repo Add-on 2 - First Caption</caption>
+      </preview>
+      <preview primary="0">
+        <full type="image/png">http://localhost:4444/repo/2/secondFull.png</full>
+        <thumbnail type="image/png">http://localhost:4444/repo/2/secondThumbnail.png</thumbnail>
+        <caption>Repo Add-on 2 - Second Caption</caption>
+      </preview>
+    </previews>
+    <rating>2</rating>
+    <learnmore>http://localhost/repo/2/learnmore.html</learnmore>
+    <homepage>http://localhost/repo/2/homepage.html</homepage>
+    <support>http://localhost/repo/2/support.html</support>
+    <contribution_data>
+      <link>http://localhost/repo/2/contribution.html</link>
+      <meet_developers>http://localhost/repo/2/meetDevelopers.html</meet_developers>
+    </contribution_data>
+    <reviews num="1112">http://localhost/repo/2/review.html</reviews>
+    <total_downloads>2222</total_downloads>
+    <weekly_downloads>3332</weekly_downloads>
+    <daily_users>4442</daily_users>
+    <last_updated epoch="9">1970-01-01T00:00:09Z</last_updated>
+    <install size="9">http://localhost:4444/repo/2/install.xpi</install>
+  </addon>
+
+  <addon>
+    <name>Repo Add-on 3</name>
+    <type id="2">Theme</type>
+    <guid>test_AddonRepository_3@tests.mozilla.org</guid>
+    <version>2.3</version>
+    <icon size="32">http://localhost/repo/3/icon.png</icon>
+    <previews>
+      <preview primary="1">
+        <full type="image/png">http://localhost:4444/repo/3/firstFull.png</full>
+        <thumbnail type="image/png">http://localhost:4444/repo/3/firstThumbnail.png</thumbnail>
+        <caption>Repo Add-on 3 - First Caption</caption>
+      </preview>
+      <preview primary="0">
+        <full type="image/png">http://localhost:4444/repo/3/secondFull.png</full>
+        <thumbnail type="image/png">http://localhost:4444/repo/3/secondThumbnail.png</thumbnail>
+        <caption>Repo Add-on 3 - Second Caption</caption>
+      </preview>
+    </previews>
+  </addon>
+
+  <addon_compatibility hosted="true" id="123">
+    <guid>test_AddonRepository_1@tests.mozilla.org</guid>
+    <name>PASS</name>
+    <version_ranges>
+      <!-- Will be included -->
+      <version_range type="incompatible">
+        <min_version>0.1</min_version>
+        <max_version>0.2</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <application_id>666</application_id>
+            <min_version>3.0</min_version>
+            <max_version>4.0</max_version>
+            <appID>xpcshell@tests.mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+      <!-- Will be included -->
+      <version_range type="incompatible">
+        <min_version>0.2</min_version>
+        <max_version>0.3</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <application_id>666</application_id>
+            <min_version>5.0</min_version>
+            <max_version>6.0</max_version>
+            <appID>xpcshell@tests.mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+      <!-- Won't be included - invalid type attribute -->
+      <version_range type="unknown">
+        <min_version>9</min_version>
+        <max_version>10</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <application_id>666</application_id>
+            <min_version>10.0</min_version>
+            <max_version>11.0</max_version>
+            <appID>xpcshell@tests.mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+      <!-- Won't be included - no matching appID -->
+      <version_range type="incompatible">
+        <min_version>0.2</min_version>
+        <max_version>0.3</max_version>
+        <compatible_applications>
+          <application>
+            <name>Unknown App</name>
+            <application_id>123</application_id>
+            <min_version>1.0</min_version>
+            <max_version>999.0</max_version>
+            <appID>unknown-app@tests.mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+</searchresults>
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_compatmode_ignore.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_compatmode_ignore.xml
new file mode 100644
index 000000000..003095727
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_compatmode_ignore.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="123">
+  <addon>
+    <name>Test Repo Add-on - ignore</name>
+    <type id="1">Extension</type>
+    <guid>compatmode-ignore@tests.mozilla.org</guid>
+    <version>1.1</version>
+    <authors>
+      <author>
+        <name>Test Creator 1</name>
+        <link>http://localhost:%PORT%/creator1.html</link>
+      </author>
+    </authors>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test1.xpi</install>
+  </addon>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_compatmode_normal.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_compatmode_normal.xml
new file mode 100644
index 000000000..fec8b09ca
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_compatmode_normal.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="123">
+  <addon>
+    <name>Test Repo Add-on - normal</name>
+    <type id="1">Extension</type>
+    <guid>compatmode-normal@tests.mozilla.org</guid>
+    <version>1.1</version>
+    <authors>
+      <author>
+        <name>Test Creator 1</name>
+        <link>http://localhost:%PORT%/creator1.html</link>
+      </author>
+    </authors>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test1.xpi</install>
+  </addon>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_compatmode_strict.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_compatmode_strict.xml
new file mode 100644
index 000000000..f99256b87
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_compatmode_strict.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="123">
+  <addon>
+    <name>Test Repo Add-on - strict</name>
+    <type id="1">Extension</type>
+    <guid>compatmode-strict@tests.mozilla.org</guid>
+    <version>1.1</version>
+    <authors>
+      <author>
+        <name>Test Creator 1</name>
+        <link>http://localhost:%PORT%/creator1.html</link>
+      </author>
+    </authors>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test1.xpi</install>
+  </addon>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_empty.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_empty.xml
new file mode 100644
index 000000000..4cd5c1443
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_empty.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="9999" />
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_failed.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_failed.xml
new file mode 100644
index 000000000..d02fa0249
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_failed.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="9999">
+<!-- Cause XML parse error so that the search fails -->
+<!--  <addon> -->
+    <name>PASS</name>
+    <type id="1">Extension</type>
+    <guid>test1@tests.mozilla.org</guid>
+    <version>1.1</version>
+    <authors><author><name>Test Creator 1</name></author></authors>
+    <status id="4">Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test1.xpi</install>
+  </addon>
+</searchresults>
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_getAddonsByIDs.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_getAddonsByIDs.xml
new file mode 100644
index 000000000..8a6167969
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_AddonRepository_getAddonsByIDs.xml
@@ -0,0 +1,187 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="1111">
+  <!-- Passes even though XPI URL matches an installing AddonInstall.
+       Tests optional attributes. -->
+  <addon>
+    <name>PASS</name>
+    <type id="1">Extension</type>
+    <guid>test1@tests.mozilla.org</guid>
+    <version>1.1</version>
+    <authors>
+      <author>
+        <name>Test Creator 1</name>
+        <link>http://localhost:%PORT%/creator1.html</link>
+      </author>
+      <author>
+        <name>Test Developer 1</name>
+        <link>http://localhost:%PORT%/developer1.html</link>
+      </author>
+    </authors>
+    <summary>Test Summary 1</summary>
+    <description>Test Description 1</description>
+    <eula>Test EULA 1</eula>
+    <developer_comments>Test Developer Comments 1</developer_comments>
+    <icon size="32">http://localhost:%PORT%/icon1.png</icon>
+    <status id="8">Preliminarily Reviewed</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <previews>
+      <preview primary="1">
+        <full type="image/png" width="400" height="300">
+          http://localhost:%PORT%/full1-1.png
+        </full>
+        <thumbnail type="image/png" width="200" height="150">
+          http://localhost:%PORT%/thumbnail1-1.png
+        </thumbnail>
+        <caption>Caption 1 - 1</caption>
+      </preview>
+      <preview primary="0">
+        <full type="image/png">http://localhost:%PORT%/full2-1.png</full>
+        <thumbnail type="image/png">http://localhost:%PORT%/thumbnail2-1.png</thumbnail>
+        <caption>Caption 2 - 1</caption>
+      </preview>
+    </previews>
+    <rating>4</rating>
+    <learnmore>http://localhost:%PORT%/learnmore1.html</learnmore>
+    <support>http://localhost:%PORT%/support1.html</support>
+    <contribution_data>
+      <link>http://localhost:%PORT%/contribution1.html</link>
+      <suggested_amount currency="USD">$11.11</suggested_amount>
+      <meet_developers>http://localhost:%PORT%/meetDevelopers1.html</meet_developers>
+    </contribution_data>
+    <reviews num="1111">http://localhost:%PORT%/review1.html</reviews>
+    <total_downloads>2222</total_downloads>
+    <weekly_downloads>3333</weekly_downloads>
+    <daily_users>4444</daily_users>
+    <last_updated epoch="1265033045">2010-02-01T14:04:05Z</last_updated>
+    <install size="5555">http://localhost:%PORT%/addons/test_AddonRepository_2.xpi</install>
+  </addon>
+
+  <addon_compatibility hosted="true" id="123">
+    <guid>test1@tests.mozilla.org</guid>
+    <name>PASS</name>
+    <version_ranges>
+      <!-- Will be included -->
+      <version_range type="incompatible">
+        <min_version>0.1</min_version>
+        <max_version>0.2</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <application_id>666</application_id>
+            <min_version>3.0</min_version>
+            <max_version>4.0</max_version>
+            <appID>xpcshell@tests.mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+      <!-- Will be included -->
+      <version_range type="incompatible">
+        <min_version>0.2</min_version>
+        <max_version>0.3</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <application_id>666</application_id>
+            <min_version>5.0</min_version>
+            <max_version>6.0</max_version>
+            <appID>xpcshell@tests.mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+      <!-- Won't be included - invalid type attribute -->
+      <version_range type="unknown">
+        <min_version>9</min_version>
+        <max_version>10</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <application_id>666</application_id>
+            <min_version>10.0</min_version>
+            <max_version>11.0</max_version>
+            <appID>xpcshell@tests.mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+      <!-- Won't be included - no matching appID -->
+      <version_range type="incompatible">
+        <min_version>0.2</min_version>
+        <max_version>0.3</max_version>
+        <compatible_applications>
+          <application>
+            <name>Unknown App</name>
+            <application_id>123</application_id>
+            <min_version>1.0</min_version>
+            <max_version>999.0</max_version>
+            <appID>unknown-app@tests.mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+
+  <!-- Fails because guid matches previously successful result -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>test1@tests.mozilla.org</guid>
+    <version>1.2</version>
+    <authors><author><name>Test Creator 2</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with a guid that matches a previously successful result should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test2.xpi</install>
+  </addon>
+
+  <!-- Fails because guid was not requested -->
+  <addon>
+    <name>FAIL</name>
+    <type id="1">Extension</type>
+    <guid>notRequested@tests.mozilla.org</guid>
+    <version>1.3</version>
+    <authors><author><name>Test Creator 3</name></author></authors>
+    <status id="4">Public</status>
+    <summary>Add-on with a guid that wasn't requested should be ignored.</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test3.xpi</install>
+  </addon>
+
+  <!-- Passes even though guid matches already installed add-on,
+       type is unknown, no defined author elements, status is not Public,
+       no compatible applications matched, no installs compatible with OS
+   -->
+  <addon>
+    <name>PASS</name>
+    <type id="2">Theme</type>
+    <guid>test_AddonRepository_1@tests.mozilla.org</guid>
+    <version>1.4</version>
+    <status id="9999">Unknown</status>
+    <compatible_applications>
+      <application>
+        <appID>unknown@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install os="UNKNOWN1">http://localhost:%PORT%/test4.xpi</install>
+    <install os="UNKNOWN2">http://localhost:%PORT%/test4.xpi</install>
+  </addon>
+</searchresults>
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_backgroundupdate.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_backgroundupdate.rdf
new file mode 100644
index 000000000..ab7cdef34
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_backgroundupdate.rdf
@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <RDF:Description about="urn:mozilla:extension:addon1@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <!-- app id compatible update available -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:addon2@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <!-- app id compatible update available -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:addon3@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <!-- app id compatible update available -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+</RDF:RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_blocklist_metadata_filters_1.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_blocklist_metadata_filters_1.xml
new file mode 100644
index 000000000..368a6ed53
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_blocklist_metadata_filters_1.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem name="/^Mozilla Corp\.$/">
+      <versionRange severity="1">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="/block2/" name="/^Moz/" creator="Dangerous"
+      homepageURL="/\.dangerous\.com/" updateURL="/\.dangerous\.com/">
+      <versionRange severity="3">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_blocklist_prefs_1.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_blocklist_prefs_1.xml
new file mode 100644
index 000000000..41df457b0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_blocklist_prefs_1.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="block1@tests.mozilla.org">
+      <prefs>
+        <pref>test.blocklist.pref1</pref>
+        <pref>test.blocklist.pref2</pref>
+      </prefs>
+      <versionRange severity="1">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="block2@tests.mozilla.org">
+      <prefs>
+        <pref>test.blocklist.pref3</pref>
+        <pref>test.blocklist.pref4</pref>
+      </prefs>
+      <versionRange severity="3">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1" maxVersion="2.*"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_blocklist_regexp_1.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_blocklist_regexp_1.xml
new file mode 100644
index 000000000..20035c6a2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_blocklist_regexp_1.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>

+

+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">

+  <emItems>

+    <emItem id="/block1/">

+      <versionRange severity="1">

+        <targetApplication id="xpcshell@tests.mozilla.org">

+          <versionRange minVersion="1" maxVersion="2.*"/>

+        </targetApplication>

+      </versionRange>

+    </emItem>

+    <emItem id="/block1/">

+      <versionRange severity="2">

+        <targetApplication id="xpcshell@tests.mozilla.org">

+          <versionRange minVersion="1" maxVersion="2.*"/>

+        </targetApplication>

+      </versionRange>

+    </emItem>

+  </emItems>

+</blocklist>

diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug299716.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug299716.rdf
new file mode 100644
index 000000000..d60d8ca3f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug299716.rdf
@@ -0,0 +1,181 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE RDF:RDF [
+  <!ENTITY bug299716 "urn:mozilla:extension:bug299716">
+  <!ENTITY addons_prefix "http://localhost:4444/addons/test_bug299716">
+  <!ENTITY v0.2 "<em:version>0.2</em:version>">
+
+  <!ENTITY xpcshell.app "
+    <em:id>xpcshell@tests.mozilla.org</em:id>
+    <em:minVersion>5</em:minVersion>
+    <em:maxVersion>5</em:maxVersion>
+  ">
+
+  <!ENTITY toolkit.app "
+    <em:id>toolkit@mozilla.org</em:id>
+    <em:minVersion>1.9</em:minVersion>
+    <em:maxVersion>1.9</em:maxVersion>
+  ">
+
+  <!ENTITY invalidRange "
+    <em:minVersion>30</em:minVersion>
+    <em:maxVersion>30</em:maxVersion>
+  ">
+
+  <!ENTITY xpcshell.invalid "
+    <em:id>xpcshell@tests.mozilla.org</em:id>
+    &invalidRange;
+  ">
+
+  <!ENTITY toolkit.invalid "
+    <em:id>toolkit@mozilla.org</em:id>
+    &invalidRange;
+  ">
+]>
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <!-- XPCShell -->
+  <RDF:Description about="&bug299716;-a@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li RDF:resource="&bug299716;-a@tests.mozilla.org:0.2"/>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="&bug299716;-a@tests.mozilla.org:0.2">
+    &v0.2;
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_a_2.xpi">
+        &xpcshell.app;
+      </RDF:Description>
+    </em:targetApplication>
+  </RDF:Description>
+
+  <!-- Toolkit -->
+  <RDF:Description about="&bug299716;-b@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li RDF:resource="&bug299716;-b@tests.mozilla.org:0.2"/>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="&bug299716;-b@tests.mozilla.org:0.2">
+    &v0.2;
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_b_2.xpi">
+        &toolkit.app;
+      </RDF:Description>
+    </em:targetApplication>
+  </RDF:Description>
+
+  <!-- XPCShell + Toolkit -->
+  <RDF:Description about="&bug299716;-c@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li RDF:resource="&bug299716;-c@tests.mozilla.org:0.2"/>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="&bug299716;-c@tests.mozilla.org:0.2">
+    &v0.2;
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_c_2.xpi">
+        &xpcshell.app;
+      </RDF:Description>
+    </em:targetApplication>
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_c_2.xpi">
+        &toolkit.app;
+      </RDF:Description>
+    </em:targetApplication>
+  </RDF:Description>
+
+  <!-- XPCShell (Toolkit invalid) -->
+  <RDF:Description about="&bug299716;-d@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li RDF:resource="&bug299716;-d@tests.mozilla.org:0.2"/>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="&bug299716;-d@tests.mozilla.org:0.2">
+    &v0.2;
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_d_2.xpi">
+        &xpcshell.app;
+      </RDF:Description>
+    </em:targetApplication>
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_d_2.xpi">
+        &toolkit.invalid;
+      </RDF:Description>
+    </em:targetApplication>
+  </RDF:Description>
+
+  <!-- Toolkit (XPCShell invalid), should not install -->
+  <RDF:Description about="&bug299716;-e@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li RDF:resource="&bug299716;-e@tests.mozilla.org:0.2"/>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="&bug299716;-e@tests.mozilla.org:0.2">
+    &v0.2;
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_e_2.xpi">
+        &xpcshell.invalid;
+      </RDF:Description>
+    </em:targetApplication>
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_e_2.xpi">
+        &toolkit.app;
+      </RDF:Description>
+    </em:targetApplication>
+  </RDF:Description>
+
+  <!-- None (XPCShell, Toolkit invalid), should not install -->
+  <RDF:Description about="&bug299716;-f@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li RDF:resource="&bug299716;-f@tests.mozilla.org:0.2"/>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="&bug299716;-f@tests.mozilla.org:0.2">
+    &v0.2;
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_f_2.xpi">
+        &xpcshell.invalid;
+      </RDF:Description>
+    </em:targetApplication>
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_f_2.xpi">
+        &toolkit.invalid;
+      </RDF:Description>
+    </em:targetApplication>
+  </RDF:Description>
+
+  <!-- Toolkit (invalid), should not install -->
+  <RDF:Description about="&bug299716;-g@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li RDF:resource="&bug299716;-g@tests.mozilla.org:0.2"/>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="&bug299716;-g@tests.mozilla.org:0.2">
+    &v0.2;
+    <em:targetApplication>
+      <RDF:Description em:updateLink="&addons_prefix;_g_2.xpi">
+        &toolkit.invalid;
+      </RDF:Description>
+    </em:targetApplication>
+  </RDF:Description>
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug299716_2.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug299716_2.rdf
new file mode 100644
index 000000000..94a4ea450
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug299716_2.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <RDF:Description about="urn:mozilla:extension:bug299716-2@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>0.1</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>1.9</em:minVersion>
+                <em:maxVersion>2.0.*</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug324121.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug324121.rdf
new file mode 100644
index 000000000..2c453f756
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug324121.rdf
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <RDF:Description about="urn:mozilla:extension:bug324121_2@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <!-- app id compatible update available -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>3</em:minVersion>
+                <em:maxVersion>3</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug324121_3@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <!-- app id incompatible update available -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug324121_6@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <!-- toolkit id compatible update available -->
+	<RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>3</em:minVersion>
+                <em:maxVersion>3</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug324121_7@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <!-- toolkit id incompatible update available -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+</RDF:RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug393285.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug393285.xml
new file mode 100644
index 000000000..1767b4332
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug393285.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="test_bug393285_2@tests.mozilla.org"/>
+    <emItem id="test_bug393285_3a@tests.mozilla.org">
+      <versionRange minVersion="1.0" maxVersion="1.0"/>
+    </emItem>
+    <emItem id="test_bug393285_3b@tests.mozilla.org">
+      <versionRange minVersion="1.0" maxVersion="1.0"/>
+    </emItem>
+    <emItem id="test_bug393285_4@tests.mozilla.org">
+      <versionRange minVersion="1.0" maxVersion="1.0">
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1.0" maxVersion="1.0"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug393285_5@tests.mozilla.org" os="Darwin"/>
+    <emItem id="test_bug393285_6@tests.mozilla.org" os="XPCShell"/>
+    <emItem id="test_bug393285_7@tests.mozilla.org" os="Darwin,XPCShell,WINNT"/>
+    <emItem id="test_bug393285_8@tests.mozilla.org" xpcomabi="x86-msvc"/>
+    <emItem id="test_bug393285_9@tests.mozilla.org" xpcomabi="noarch-spidermonkey"/>
+    <emItem id="test_bug393285_10@tests.mozilla.org" xpcomabi="ppc-gcc3,noarch-spidermonkey,x86-msvc"/>
+    <emItem id="test_bug393285_11@tests.mozilla.org" os="Darwin" xpcomabi="ppc-gcc3,x86-msvc"/>
+    <emItem id="test_bug393285_12@tests.mozilla.org" os="Darwin" xpcomabi="ppc-gcc3,noarch-spidermonkey,x86-msvc"/>
+    <emItem id="test_bug393285_13@tests.mozilla.org" os="XPCShell" xpcomabi="ppc-gcc3,x86-msvc"/>
+    <emItem id="test_bug393285_14@tests.mozilla.org" os="XPCShell,WINNT" xpcomabi="ppc-gcc3,x86-msvc,noarch-spidermonkey"/>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug394300.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug394300.rdf
new file mode 100644
index 000000000..94e12527f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug394300.rdf
@@ -0,0 +1,159 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <RDF:Description about="urn:mozilla:extension:bug394300_1@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <!-- Not a valid install - incompatible app versions -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>20</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <!-- Valid install should be the version detected -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>10</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <!-- Valid install. Detecting this would indicate that the order
+             of entries is playing a part in the update detection. -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>6</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <!-- Not a valid install - no minVersion or maxVersion specified -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>40</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <!-- Not a valid install - incompatible app versions -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>30</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <RDF:Description about="urn:mozilla:extension:bug394300_2@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <!-- Not a valid install - incompatible app versions -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>20</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <!-- Valid install should be the version detected -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>10</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>1.9</em:minVersion>
+                <em:maxVersion>1.9</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <!-- Valid install. Detecting this would indicate that the order
+             of entries is playing a part in the update detection. -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>6</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>1.9</em:minVersion>
+                <em:maxVersion>1.9</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <!-- Not a valid install - no minVersion or maxVersion specified -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>40</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+        <!-- Not a valid install - incompatible app versions -->
+        <RDF:li>
+          <RDF:Description>
+            <em:version>30</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+</RDF:RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug424262.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug424262.xml
new file mode 100644
index 000000000..d797debbb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug424262.xml
@@ -0,0 +1,185 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="100">
+  <addon>
+    <name>TEST</name>
+    <type id='1'>Extension</type>
+    <guid>test1@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>TEST</name>
+    <rating>-5</rating>
+    <type id='1'>Extension</type>
+    <guid>test2@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>TEST</name>
+    <rating>0</rating>
+    <type id='1'>Extension</type>
+    <guid>test3@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>TEST</name>
+    <rating>2</rating>
+    <type id='1'>Extension</type>
+    <guid>test4@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>TEST</name>
+    <rating>4</rating>
+    <type id='1'>Extension</type>
+    <guid>test5@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>TEST</name>
+    <rating>5</rating>
+    <type id='1'>Extension</type>
+    <guid>test6@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>TEST</name>
+    <rating>10</rating>
+    <type id='1'>Extension</type>
+    <guid>test7@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>TEST</name>
+    <rating>100</rating>
+    <type id='1'>Extension</type>
+    <guid>test8@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug449027_app.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug449027_app.xml
new file mode 100644
index 000000000..f12ca1fa6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug449027_app.xml
@@ -0,0 +1,333 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <!-- All extensions are version 5 and tests run against appVersion 3 -->
+
+    <!-- Test 1 not listed, should never get blocked -->
+    <!-- Always blocked -->
+    <emItem id="test_bug449027_2@tests.mozilla.org"/>
+    <!-- Always blocked -->
+    <emItem id="test_bug449027_3@tests.mozilla.org">
+      <versionRange/>
+    </emItem>
+    <!-- Not blocked since neither version range matches -->
+    <emItem id="test_bug449027_4@tests.mozilla.org">
+      <versionRange minVersion="6"/>
+      <versionRange maxVersion="4"/>
+    </emItem>
+    <!-- Invalid version range, should not block -->
+    <emItem id="test_bug449027_5@tests.mozilla.org">
+      <versionRange minVersion="6" maxVersion="4"/>
+    </emItem>
+    <!-- Should block all of these -->
+    <emItem id="test_bug449027_6@tests.mozilla.org">
+      <versionRange minVersion="7" maxVersion="8"/>
+      <versionRange minVersion="5" maxVersion="6"/>
+      <versionRange maxVersion="4"/>
+    </emItem>
+    <emItem id="test_bug449027_7@tests.mozilla.org">
+      <versionRange maxVersion="4"/>
+      <versionRange minVersion="4" maxVersion="5"/>
+      <versionRange minVersion="6" maxVersion="7"/>
+    </emItem>
+    <emItem id="test_bug449027_8@tests.mozilla.org">
+      <versionRange minVersion="2" maxVersion="2"/>
+      <versionRange minVersion="4" maxVersion="6"/>
+      <versionRange minVersion="7" maxVersion="8"/>
+    </emItem>
+    <emItem id="test_bug449027_9@tests.mozilla.org">
+      <versionRange minVersion="4"/>
+    </emItem>
+    <emItem id="test_bug449027_10@tests.mozilla.org">
+      <versionRange minVersion="5"/>
+    </emItem>
+    <emItem id="test_bug449027_11@tests.mozilla.org">
+      <versionRange maxVersion="6"/>
+    </emItem>
+    <emItem id="test_bug449027_12@tests.mozilla.org">
+      <versionRange maxVersion="5"/>
+    </emItem>
+
+    <!-- This should block all versions for any application -->
+    <emItem id="test_bug449027_13@tests.mozilla.org">
+      <versionRange>
+        <targetApplication/>
+      </versionRange>
+    </emItem>
+    <!-- Shouldn't block -->
+    <emItem id="test_bug449027_14@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="foo@bar.com"/>
+      </versionRange>
+    </emItem>
+    <!-- Should block for any version of the app -->
+    <emItem id="test_bug449027_15@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org"/>
+      </versionRange>
+    </emItem>
+    <!-- Should still block -->
+    <emItem id="test_bug449027_16@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <!-- Not blocked since neither version range matches -->
+    <emItem id="test_bug449027_17@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="4"/>
+          <versionRange maxVersion="2"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <!-- Invalid version range, should not block -->
+    <emItem id="test_bug449027_18@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="6" maxVersion="4"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <!-- Should block all of these -->
+    <emItem id="test_bug449027_19@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="foo@bar.com"/>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="5" maxVersion="6"/>
+          <versionRange minVersion="3" maxVersion="4"/>
+          <versionRange maxVersion="2"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_20@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange maxVersion="2"/>
+          <versionRange minVersion="2" maxVersion="3"/>
+          <versionRange minVersion="4" maxVersion="5"/>
+        </targetApplication>
+        <targetApplication id="foo@bar.com"/>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_21@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1" maxVersion="1"/>
+          <versionRange minVersion="2" maxVersion="4"/>
+          <versionRange minVersion="5" maxVersion="6"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_22@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="foo@bar.com"/>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="3"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_23@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="2"/>
+        </targetApplication>
+        <targetApplication id="foo@bar.com"/>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_24@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange maxVersion="3"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_25@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange maxVersion="4"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+  </emItems>
+  <pluginItems>
+    <!-- All plugins are version 5 and tests run against appVersion 3 -->
+
+    <!-- Test 1 not listed, should never get blocked -->
+    <!-- Always blocked -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_2$"/>
+    </pluginItem>
+    <!-- Always blocked -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_3$"/>
+      <versionRange/>
+    </pluginItem>
+    <!-- Not blocked since neither version range matches -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_4$"/>
+      <versionRange minVersion="6"/>
+      <versionRange maxVersion="4"/>
+    </pluginItem>
+    <!-- Invalid version range, should not block -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_5$"/>
+      <versionRange minVersion="6" maxVersion="4"/>
+    </pluginItem>
+    <!-- Should block all of these -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_6$"/>
+      <versionRange minVersion="7" maxVersion="8"/>
+      <versionRange minVersion="5" maxVersion="6"/>
+      <versionRange maxVersion="4"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_7$"/>
+      <versionRange maxVersion="4"/>
+      <versionRange minVersion="4" maxVersion="5"/>
+      <versionRange minVersion="6" maxVersion="7"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_8$"/>
+      <versionRange minVersion="2" maxVersion="2"/>
+      <versionRange minVersion="4" maxVersion="6"/>
+      <versionRange minVersion="7" maxVersion="8"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_9$"/>
+      <versionRange minVersion="4"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_10$"/>
+      <versionRange minVersion="5"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_11$"/>
+      <versionRange maxVersion="6"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_12$"/>
+      <versionRange maxVersion="5"/>
+    </pluginItem>
+
+    <!-- This should block all versions for any application -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_13$"/>
+      <versionRange>
+        <targetApplication/>
+      </versionRange>
+    </pluginItem>
+    <!-- Shouldn't block -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_14$"/>
+      <versionRange>
+        <targetApplication id="foo@bar.com"/>
+      </versionRange>
+    </pluginItem>
+    <!-- Should block for any version of the app -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_15$"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org"/>
+      </versionRange>
+    </pluginItem>
+    <!-- Should still block -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_16$"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <!-- Not blocked since neither version range matches -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_17$"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="4"/>
+          <versionRange maxVersion="2"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <!-- Invalid version range, should not block -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_18$"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="6" maxVersion="4"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <!-- Should block all of these -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_19$"/>
+      <versionRange>
+        <targetApplication id="foo@bar.com"/>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="5" maxVersion="6"/>
+          <versionRange minVersion="3" maxVersion="4"/>
+          <versionRange maxVersion="2"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_20$"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange maxVersion="2"/>
+          <versionRange minVersion="2" maxVersion="3"/>
+          <versionRange minVersion="4" maxVersion="5"/>
+        </targetApplication>
+        <targetApplication id="foo@bar.com"/>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_21$"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="1" maxVersion="1"/>
+          <versionRange minVersion="2" maxVersion="4"/>
+          <versionRange minVersion="5" maxVersion="6"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_22$"/>
+      <versionRange>
+        <targetApplication id="foo@bar.com"/>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="3"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_23$"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange minVersion="2"/>
+        </targetApplication>
+        <targetApplication id="foo@bar.com"/>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_24$"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange maxVersion="3"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_25$"/>
+      <versionRange>
+        <targetApplication id="xpcshell@tests.mozilla.org">
+          <versionRange maxVersion="4"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug449027_toolkit.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug449027_toolkit.xml
new file mode 100644
index 000000000..ad8ec5ed9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug449027_toolkit.xml
@@ -0,0 +1,208 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <!-- All extensions are version 5 and tests run against toolkitVersion 8 -->
+
+    <!-- Test 1-14 not listed, should never get blocked -->
+
+    <!-- Should block for any version of the app -->
+    <emItem id="test_bug449027_15@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org"/>
+      </versionRange>
+    </emItem>
+    <!-- Should still block -->
+    <emItem id="test_bug449027_16@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <!-- Not blocked since neither version range matches -->
+    <emItem id="test_bug449027_17@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="9"/>
+          <versionRange maxVersion="7"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <!-- Invalid version range, should not block -->
+    <emItem id="test_bug449027_18@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="11" maxVersion="9"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <!-- Should block all of these -->
+    <emItem id="test_bug449027_19@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="foo@bar.com"/>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="10" maxVersion="11"/>
+          <versionRange minVersion="8" maxVersion="9"/>
+          <versionRange maxVersion="7"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_20@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange maxVersion="7"/>
+          <versionRange minVersion="7" maxVersion="8"/>
+          <versionRange minVersion="9" maxVersion="10"/>
+        </targetApplication>
+        <targetApplication id="foo@bar.com"/>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_21@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="6" maxVersion="6"/>
+          <versionRange minVersion="7" maxVersion="9"/>
+          <versionRange minVersion="10" maxVersion="11"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_22@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="foo@bar.com"/>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="8"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_23@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="7"/>
+        </targetApplication>
+        <targetApplication id="foo@bar.com"/>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_24@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange maxVersion="8"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+    <emItem id="test_bug449027_25@tests.mozilla.org">
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange maxVersion="9"/>
+        </targetApplication>
+      </versionRange>
+    </emItem>
+  </emItems>
+  <pluginItems>
+    <!-- All plugins are version 5 and tests run against appVersion 3 -->
+
+    <!-- Test 1-14 not listed, should never get blocked -->
+    <!-- Should block for any version of the app -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_15$"/>
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org"/>
+      </versionRange>
+    </pluginItem>
+    <!-- Should still block -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_16$"/>
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <!-- Not blocked since neither version range matches -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_17$"/>
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="9"/>
+          <versionRange maxVersion="7"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <!-- Invalid version range, should not block -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_18$"/>
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="11" maxVersion="9"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <!-- Should block all of these -->
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_19$"/>
+      <versionRange>
+        <targetApplication id="foo@bar.com"/>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="10" maxVersion="11"/>
+          <versionRange minVersion="8" maxVersion="9"/>
+          <versionRange maxVersion="7"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_20$"/>
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange maxVersion="7"/>
+          <versionRange minVersion="7" maxVersion="8"/>
+          <versionRange minVersion="9" maxVersion="10"/>
+        </targetApplication>
+        <targetApplication id="foo@bar.com"/>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_21$"/>
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="6" maxVersion="6"/>
+          <versionRange minVersion="7" maxVersion="9"/>
+          <versionRange minVersion="10" maxVersion="11"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_22$"/>
+      <versionRange>
+        <targetApplication id="foo@bar.com"/>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="8"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_23$"/>
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange minVersion="7"/>
+        </targetApplication>
+        <targetApplication id="foo@bar.com"/>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_24$"/>
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange maxVersion="8"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug449027_25$"/>
+      <versionRange>
+        <targetApplication id="toolkit@mozilla.org">
+          <versionRange maxVersion="9"/>
+        </targetApplication>
+      </versionRange>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug468528.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug468528.xml
new file mode 100644
index 000000000..85f0da57c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug468528.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <pluginItems>
+    <pluginItem>
+      <match name="name" exp="^test_bug468528_1"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug468528_2["/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug468528_3"/>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_1.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_1.rdf
new file mode 100644
index 000000000..5397e8a87
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_1.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug470377_1@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    <em:targetApplication>
+      <Description>
+        <em:id>unknown@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>Test for Bug 470377</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_2.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_2.rdf
new file mode 100644
index 000000000..b1dde7f7a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_2.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug470377_2@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>Test for Bug 470377</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_3.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_3.rdf
new file mode 100644
index 000000000..ae483434a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_3.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug470377_3@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>1</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>Test for Bug 470377</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_4.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_4.rdf
new file mode 100644
index 000000000..97abacc5e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_4.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug470377_4@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    <em:targetApplication>
+      <Description>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>2</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>Test for Bug 470377</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_5.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_5.rdf
new file mode 100644
index 000000000..bff1104a7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/install_5.rdf
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>bug470377_5@tests.mozilla.org</em:id>
+    <em:version>1</em:version>
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>3</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+    <em:name>Test for Bug 470377</em:name>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_1.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_1.rdf
new file mode 100644
index 000000000..e4ad91ae9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_1.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <RDF:Description about="urn:mozilla:extension:test_bug470377_1@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>unknown@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_2.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_2.rdf
new file mode 100644
index 000000000..10fcafd39
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_2.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <RDF:Description about="urn:mozilla:extension:test_bug470377_2@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_3.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_3.rdf
new file mode 100644
index 000000000..684002462
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_3.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <RDF:Description about="urn:mozilla:extension:test_bug470377_3@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_4.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_4.rdf
new file mode 100644
index 000000000..6e7116239
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_4.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <RDF:Description about="urn:mozilla:extension:test_bug470377_4@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>toolkit@mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_5.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_5.rdf
new file mode 100644
index 000000000..c926af934
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug470377/update_5.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <RDF:Description about="urn:mozilla:extension:test_bug470377_5@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>3</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_1.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_1.xml
new file mode 100644
index 000000000..c4cc2fe37
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_1.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <pluginItems>
+    <pluginItem>
+      <match name="name" exp="^test_bug514327_1"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug514327_2"/>
+      <versionRange severity="0"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_bug514327_3"/>
+      <versionRange severity="0"/>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_2.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_2.xml
new file mode 100644
index 000000000..cc0a0c69d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_2.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <pluginItems>
+    <pluginItem>
+      <match name="name" exp="Test Plug-in"/>
+      <versionRange severity="0"/>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_3_empty.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_3_empty.xml
new file mode 100644
index 000000000..0261794f8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_3_empty.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_3_outdated_1.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_3_outdated_1.xml
new file mode 100644
index 000000000..d651f8799
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_3_outdated_1.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <pluginItems>
+    <pluginItem>
+      <match name="name" exp="test_bug514327_1"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="test_bug514327_outdated"/>
+      <versionRange severity="0"/>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_3_outdated_2.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_3_outdated_2.xml
new file mode 100644
index 000000000..208444681
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug514327_3_outdated_2.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <pluginItems>
+    <pluginItem>
+      <match name="name" exp="test_bug514327_2"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="test_bug514327_outdated"/>
+      <versionRange severity="0"/>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug526598_1.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug526598_1.xpi
new file mode 100644
index 000000000..2dbcc0b50
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug526598_1.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug526598_2.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug526598_2.xpi
new file mode 100644
index 000000000..86fc6baaa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug526598_2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug541420.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug541420.xpi
new file mode 100644
index 000000000..adb7be9ad
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug541420.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug542391.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug542391.rdf
new file mode 100644
index 000000000..db82cf675
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug542391.rdf
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:override1x2-1x3@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>3</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug554133.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug554133.xml
new file mode 100644
index 000000000..736c10514
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug554133.xml
@@ -0,0 +1,292 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="100">
+  <addon>
+    <name>PASS</name>
+    <type id='1'>Extension</type>
+    <guid>test1@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>FAIL</name>
+    <type id='1'>Extension</type>
+    <guid>test2@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Should not return an incompatible add-on</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>2</min_version>
+        <max_version>2</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>PASS</name>
+    <type id='1'>Extension</type>
+    <guid>test3@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>FAIL</name>
+    <type id='1'>Extension</type>
+    <guid>test4@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Should not return an add-on for a different OS</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install os="UNKNOWN">http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>PASS</name>
+    <type id='1'>Extension</type>
+    <guid>test5@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>FAIL</name>
+    <type id='1'>Extension</type>
+    <guid>test5@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Should not include the same result twice</summary>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>PASS</name>
+    <type id='1'>Extension</type>
+    <guid>test6@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>PASS</name>
+    <type id='1'>Extension</type>
+    <guid>test7@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>PASS</name>
+    <type id='1'>Extension</type>
+    <guid>test8@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>PASS</name>
+    <type id='1'>Extension</type>
+    <guid>test9@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>PASS</name>
+    <type id='1'>Extension</type>
+    <guid>test10@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>PASS</name>
+    <type id='1'>Extension</type>
+    <guid>test11@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+
+  <addon>
+    <name>PASS</name>
+    <type id='1'>Extension</type>
+    <guid>test12@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://localhost:%PORT%/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://localhost:%PORT%/test.xpi</install>
+  </addon>
+</searchresults>
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug619730.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug619730.xml
new file mode 100644
index 000000000..f2511c0de
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug619730.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <gfxItems testattr="GFX"><gfxItem/><gfxItem/></gfxItems>
+  <testItems testattr="FOO"><testItem/><testItem/><testItem/></testItems>
+  <fooItems/>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug655254.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug655254.rdf
new file mode 100644
index 000000000..9857dcb55
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_bug655254.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <RDF:Description about="urn:mozilla:extension:addon1@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>1</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+</RDF:RDF>
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_compatoverrides.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_compatoverrides.xml
new file mode 100644
index 000000000..c0d67d033
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_compatoverrides.xml
@@ -0,0 +1,228 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="9">
+  <addon>
+    <name>Test addon 2</name>
+    <type id="1">Extension</type>
+    <guid>addon2@tests.mozilla.org</guid>
+    <version>1.0</version>
+  </addon>
+
+  <addon>
+    <name>Test addon 3</name>
+    <type id="1">Extension</type>
+    <guid>addon3@tests.mozilla.org</guid>
+    <version>1.0</version>
+  </addon>
+  <addon_compatibility hosted="true">
+    <name>Test addon 3</name>
+    <guid>addon3@tests.mozilla.org</guid>
+    <version_ranges>
+      <version_range type="incompatible">
+        <min_version>0.9</min_version>
+        <max_version>1.0</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <appID>xpcshell@tests.mozilla.org</appID>
+            <min_version>1</min_version>
+            <max_version>2</max_version>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+
+  <addon>
+    <name>Test addon 4</name>
+    <type id="1">Extension</type>
+    <guid>addon4@tests.mozilla.org</guid>
+    <version>1.0</version>
+  </addon>
+  <addon_compatibility hosted="true">
+    <name>Test addon 4</name>
+    <guid>addon4@tests.mozilla.org</guid>
+    <version_ranges>
+      <version_range type="incompatible">
+        <min_version>0.9</min_version>
+        <max_version>1.0</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <appID>xpcshell@tests.mozilla.org</appID>
+            <min_version>1</min_version>
+            <max_version>2</max_version>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+
+  <addon>
+    <name>Test addon 5</name>
+    <type id="1">Extension</type>
+    <guid>addon5@tests.mozilla.org</guid>
+    <version>1.0</version>
+  </addon>
+  <addon_compatibility hosted="true">
+    <name>Test addon 5</name>
+    <guid>addon5@tests.mozilla.org</guid>
+    <version_ranges>
+      <version_range type="incompatible">
+        <min_version>0.9</min_version>
+        <max_version>1.0</max_version>
+        <compatible_applications>
+          <application>
+            <name>Unknown App</name>
+            <appID>unknown-app@tests.mozilla.org</appID>
+            <min_version>1</min_version>
+            <max_version>2</max_version>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+
+  <addon>
+    <name>Test addon 6</name>
+    <type id="1">Extension</type>
+    <guid>addon6@tests.mozilla.org</guid>
+    <version>1.0</version>
+  </addon>
+  <addon_compatibility hosted="true">
+    <name>Test addon 6</name>
+    <guid>addon6@tests.mozilla.org</guid>
+    <version_ranges>
+      <version_range type="incompatible">
+        <min_version>0.5</min_version>
+        <max_version>0.9</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <appID>xpcshell@tests.mozilla.org</appID>
+            <min_version>1</min_version>
+            <max_version>2</max_version>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+  
+  <addon>
+    <name>Test addon 7</name>
+    <type id="1">Extension</type>
+    <guid>addon7@tests.mozilla.org</guid>
+    <version>1.0</version>
+  </addon>
+  <addon_compatibility hosted="true">
+    <name>Test addon 7</name>
+    <guid>addon7@tests.mozilla.org</guid>
+    <version_ranges>
+      <version_range type="incompatible">
+        <min_version>0.5</min_version>
+        <max_version>1.0</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <appID>xpcshell@tests.mozilla.org</appID>
+            <min_version>0.1</min_version>
+            <max_version>0.9</max_version>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+  
+  <addon>
+    <name>Test addon 8</name>
+    <type id="1">Extension</type>
+    <guid>addon8@tests.mozilla.org</guid>
+    <version>1.0</version>
+  </addon>
+  <addon_compatibility hosted="true">
+    <name>Test addon 8</name>
+    <guid>addon8@tests.mozilla.org</guid>
+    <version_ranges>
+      <version_range type="incompatible">
+        <min_version>6</min_version>
+        <max_version>6.2</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <appID>xpcshell@tests.mozilla.org</appID>
+            <min_version>0.9</min_version>
+            <max_version>9</max_version>
+          </application>
+        </compatible_applications>
+      </version_range>
+      <version_range type="incompatible">
+        <min_version>0.5</min_version>
+        <max_version>1.0</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <appID>xpcshell@tests.mozilla.org</appID>
+            <min_version>0.1</min_version>
+            <max_version>9</max_version>
+          </application>
+          <application>
+            <name>Unknown app</name>
+            <appID>unknown-app@tests.mozilla.org</appID>
+            <min_version>0.1</min_version>
+            <max_version>9</max_version>
+          </application>
+        </compatible_applications>
+      </version_range>
+      <version_range type="incompatible">
+        <min_version>0.1</min_version>
+        <max_version>0.2</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <appID>xpcshell@tests.mozilla.org</appID>
+            <min_version>0.1</min_version>
+            <max_version>0.9</max_version>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+
+  <addon_compatibility hosted="false">
+    <name>Test addon 9</name>
+    <guid>addon9@tests.mozilla.org</guid>
+    <version_ranges>
+      <version_range type="incompatible">
+        <min_version>0.5</min_version>
+        <max_version>1.0</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <appID>xpcshell@tests.mozilla.org</appID>
+            <min_version>1</min_version>
+            <max_version>2</max_version>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+
+  <addon_compatibility hosted="false">
+    <name>Test addon 10</name>
+    <guid>addon10@tests.mozilla.org</guid>
+    <version_ranges>
+      <version_range type="compatible">
+        <min_version>0.5</min_version>
+        <max_version>1.0</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <appID>xpcshell@tests.mozilla.org</appID>
+            <min_version>1</min_version>
+            <max_version>2</max_version>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_corrupt.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_corrupt.rdf
new file mode 100644
index 000000000..f3341bdcf
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_corrupt.rdf
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:addon3@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon4@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_update_complete/bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_update_complete/bootstrap.js
new file mode 100644
index 000000000..a81c90bf0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_update_complete/bootstrap.js
@@ -0,0 +1,24 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/AddonManager.jsm");
+
+const ADDON_ID = "test_delay_update_complete@tests.mozilla.org";
+const INSTALL_COMPLETE_PREF = "bootstraptest.install_complete_done";
+
+function install(data, reason) {}
+
+// normally we would use BootstrapMonitor here, but we need a reference to
+// the symbol inside `XPIProvider.jsm`.
+function startup(data, reason) {
+  // apply update immediately
+  if (data.hasOwnProperty("instanceID") && data.instanceID) {
+    AddonManager.addUpgradeListener(data.instanceID, (upgrade) => {
+      upgrade.install();
+    });
+  } else {
+    throw Error("no instanceID passed to bootstrap startup");
+  }
+}
+
+function shutdown(data, reason) {}
+
+function uninstall(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_update_defer/bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_update_defer/bootstrap.js
new file mode 100644
index 000000000..25ffd8565
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_update_defer/bootstrap.js
@@ -0,0 +1,34 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/AddonManager.jsm");
+
+const ADDON_ID = "test_delay_update_complete@tests.mozilla.org";
+const INSTALL_COMPLETE_PREF = "bootstraptest.install_complete_done";
+
+// global reference to hold upgrade object
+let gUpgrade;
+
+function install(data, reason) {}
+
+// normally we would use BootstrapMonitor here, but we need a reference to
+// the symbol inside `XPIProvider.jsm`.
+function startup(data, reason) {
+  // do not apply update immediately, hold on to for later
+  if (data.hasOwnProperty("instanceID") && data.instanceID) {
+    AddonManager.addUpgradeListener(data.instanceID, (upgrade) => {
+      gUpgrade = upgrade;
+    });
+  } else {
+    throw Error("no instanceID passed to bootstrap startup");
+  }
+
+  // add a listener so the test can pass control back
+  AddonManager.addAddonListener({
+    onFakeEvent: () => {
+      gUpgrade.install();
+    }
+  })
+}
+
+function shutdown(data, reason) {}
+
+function uninstall(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_update_ignore/bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_update_ignore/bootstrap.js
new file mode 100644
index 000000000..7693c9c2d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_update_ignore/bootstrap.js
@@ -0,0 +1,26 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/AddonManager.jsm");
+
+const ADDON_ID = "test_delay_update_ignore@tests.mozilla.org";
+const TEST_IGNORE_PREF = "delaytest.ignore";
+
+function install(data, reason) {}
+
+// normally we would use BootstrapMonitor here, but we need a reference to
+// the symbol inside `XPIProvider.jsm`.
+function startup(data, reason) {
+  Services.prefs.setBoolPref(TEST_IGNORE_PREF, false);
+
+  // explicitly ignore update, will be queued for next restart
+  if (data.hasOwnProperty("instanceID") && data.instanceID) {
+    AddonManager.addUpgradeListener(data.instanceID, (upgrade) => {
+      Services.prefs.setBoolPref(TEST_IGNORE_PREF, true);
+    });
+  } else {
+    throw Error("no instanceID passed to bootstrap startup");
+  }
+}
+
+function shutdown(data, reason) {}
+
+function uninstall(data, reason) {}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_complete.json b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_complete.json
new file mode 100644
index 000000000..cf3defdc7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_complete.json
@@ -0,0 +1,11 @@
+{
+  "addons": {
+    "test_delay_update_complete_webext@tests.mozilla.org": {
+      "updates": [
+        { "version": "2.0",
+          "update_link": "http://localhost:%PORT%/addons/test_delay_update_complete_webextension_v2.xpi"
+        }
+      ]
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_complete.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_complete.rdf
new file mode 100644
index 000000000..8af39cb0e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_complete.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:test_delay_update_complete@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <!-- app id compatible update available -->
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_delay_update_complete_v2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_defer.json b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_defer.json
new file mode 100644
index 000000000..2fcab10b5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_defer.json
@@ -0,0 +1,11 @@
+{
+  "addons": {
+    "test_delay_update_defer_webext@tests.mozilla.org": {
+      "updates": [
+        { "version": "2.0",
+          "update_link": "http://localhost:%PORT%/addons/test_delay_update_defer_webextension_v2.xpi"
+        }
+      ]
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_defer.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_defer.rdf
new file mode 100644
index 000000000..d44d4880f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_defer.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:test_delay_update_defer@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <!-- app id compatible update available -->
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_delay_update_defer_v2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_ignore.json b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_ignore.json
new file mode 100644
index 000000000..b7f48149d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_ignore.json
@@ -0,0 +1,11 @@
+{
+  "addons": {
+    "test_delay_update_ignore_webext@tests.mozilla.org": {
+      "updates": [
+        { "version": "2.0",
+          "update_link": "http://localhost:%PORT%/addons/test_delay_update_ignore_webextension_v2.xpi"
+        }
+      ]
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_ignore.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_ignore.rdf
new file mode 100644
index 000000000..866884f8d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_delay_updates_ignore.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:test_delay_update_ignore@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <!-- app id compatible update available -->
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_delay_update_ignore_v2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_dictionary.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_dictionary.rdf
new file mode 100644
index 000000000..364b3bba1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_dictionary.rdf
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+ <Description about="urn:mozilla:extension:ab-CD@dictionaries.addons.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_dictionary_3.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+ <Description about="urn:mozilla:extension:ef@dictionaries.addons.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_dictionary_4.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+ <Description about="urn:mozilla:extension:gh@dictionaries.addons.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_dictionary_5.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/bootstrap.js
new file mode 100644
index 000000000..01682d3b7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/bootstrap.js
@@ -0,0 +1,21 @@
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+function install(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.installed_version", 2);
+  Services.prefs.setIntPref("bootstraptest.install_reason", reason);
+}
+
+function startup(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.active_version", 2);
+  Services.prefs.setIntPref("bootstraptest.startup_reason", reason);
+}
+
+function shutdown(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.active_version", 0);
+  Services.prefs.setIntPref("bootstraptest.shutdown_reason", reason);
+}
+
+function uninstall(data, reason) {
+  Services.prefs.setIntPref("bootstraptest.installed_version", 0);
+  Services.prefs.setIntPref("bootstraptest.uninstall_reason", reason);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/install.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/install.rdf
new file mode 100644
index 000000000..ebe547ccc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/install.rdf
@@ -0,0 +1,23 @@
+<?xml version="1.0"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>addon2@tests.mozilla.org</em:id>
+    <em:version>2.0</em:version>
+
+    <!-- Front End MetaData -->
+    <em:name>Distributed add-ons test</em:name>
+    <em:bootstrap>true</em:bootstrap>
+
+    <em:targetApplication>
+      <Description>
+        <em:id>xpcshell@tests.mozilla.org</em:id>
+        <em:minVersion>1</em:minVersion>
+        <em:maxVersion>5</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/subdir/dummy.txt b/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/subdir/dummy.txt
new file mode 100644
index 000000000..051aef85a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/subdir/dummy.txt
@@ -0,0 +1 @@
+Test of a file in a sub directory
\ No newline at end of file
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/subdir/subdir2/dummy2.txt b/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/subdir/subdir2/dummy2.txt
new file mode 100644
index 000000000..9eddc4493
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_distribution2_2/subdir/subdir2/dummy2.txt
@@ -0,0 +1 @@
+Nested dummy file
\ No newline at end of file
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist.xml
new file mode 100644
index 000000000..d535d2c3f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist.xml
@@ -0,0 +1,304 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <gfxItems>
+    <gfxBlacklistEntry blockID="g35">
+      <os>WINNT 6.1</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.2202 </driverVersion>
+      <driverVersionComparator> LESS_THAN </driverVersionComparator>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>WINNT 6.0</os>
+      <vendor>0xdcba</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_9_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.2202 </driverVersion>
+      <driverVersionComparator> LESS_THAN </driverVersionComparator>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry blockID="g36">
+      <os>WINNT 6.1</os>
+      <vendor>0xabab</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.2202 </driverVersion>
+      <driverVersionComparator> GREATER_THAN_OR_EQUAL </driverVersionComparator>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>WINNT 6.1</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.1111 </driverVersion>
+      <driverVersionComparator> EQUAL </driverVersionComparator>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>abcd</vendor>
+      <devices>
+        <device>wxyz</device>
+        <device>asdf</device>
+        <device>erty</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 5 </driverVersion>
+      <driverVersionComparator> LESS_THAN_OR_EQUAL </driverVersionComparator>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>dcdc</vendor>
+      <devices>
+        <device>uiop</device>
+        <device>vbnm</device>
+        <device>hjkl</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 5 </driverVersion>
+      <driverVersionComparator> EQUAL </driverVersionComparator>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>abab</vendor>
+      <devices>
+        <device>ghjk</device>
+        <device>cvbn</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 7 </driverVersion>
+      <driverVersionComparator> GREATER_THAN_OR_EQUAL </driverVersionComparator>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>WINNT 6.1</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x6666</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DEVICE </featureStatus>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x6666</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DEVICE </featureStatus>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x6666</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DEVICE </featureStatus>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x6666</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DEVICE </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_11_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.1112 </driverVersion>
+      <driverVersionMax> 8.52.323.1000 </driverVersionMax>
+      <driverVersionComparator> BETWEEN_EXCLUSIVE </driverVersionComparator>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> OPENGL_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.50.322.1000 </driverVersion>
+      <driverVersionMax> 8.52.322.1112 </driverVersionMax>
+      <driverVersionComparator> BETWEEN_EXCLUSIVE </driverVersionComparator>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_11_ANGLE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.1000 </driverVersion>
+      <driverVersionMax> 9.52.322.1000 </driverVersionMax>
+      <driverVersionComparator> BETWEEN_EXCLUSIVE </driverVersionComparator>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> HARDWARE_VIDEO_DECODING </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 7.82.322.1000 </driverVersion>
+      <driverVersionMax> 9.25.322.1001 </driverVersionMax>
+      <driverVersionComparator> BETWEEN_INCLUSIVE </driverVersionComparator>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.1112 </driverVersion>
+      <driverVersionMax> 9.52.322.1300 </driverVersionMax>
+      <driverVersionComparator> BETWEEN_INCLUSIVE </driverVersionComparator>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION_DECODE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.1000 </driverVersion>
+      <driverVersionMax> 8.52.322.1112 </driverVersionMax>
+      <driverVersionComparator> BETWEEN_INCLUSIVE </driverVersionComparator>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION_ENCODE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.1112 </driverVersion>
+      <driverVersionMax> 8.52.322.1200 </driverVersionMax>
+      <driverVersionComparator> BETWEEN_INCLUSIVE_START </driverVersionComparator>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_MSAA </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.1000 </driverVersion>
+      <driverVersionMax> 8.52.322.1200 </driverVersionMax>
+      <driverVersionComparator> BETWEEN_INCLUSIVE_START </driverVersionComparator>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_ANGLE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.1000 </driverVersion>
+      <driverVersionMax> 8.52.322.1112 </driverVersionMax>
+      <driverVersionComparator> BETWEEN_INCLUSIVE_START </driverVersionComparator>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xdcdc</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> CANVAS2D_ACCELERATION </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.1000 </driverVersion>
+      <driverVersionMax> 9.52.322.1000 </driverVersionMax>
+      <driverVersionComparator> BETWEEN_EXCLUSIVE </driverVersionComparator>
+    </gfxBlacklistEntry>
+
+  </gfxItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist2.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist2.xml
new file mode 100644
index 000000000..0ad8f6819
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist2.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <gfxItems>
+    <gfxBlacklistEntry>
+      <os>WINNT 6.1</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.2202 </driverVersion>
+      <driverVersionComparator> LESS_THAN </driverVersionComparator>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>WINNT 6.0</os>
+      <vendor>0xdcba</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_9_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.2202 </driverVersion>
+      <driverVersionComparator> LESS_THAN </driverVersionComparator>
+    </gfxBlacklistEntry>
+  </gfxItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist_AllOS.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist_AllOS.xml
new file mode 100644
index 000000000..f64676355
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist_AllOS.xml
@@ -0,0 +1,783 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <gfxItems>
+
+    <gfxBlacklistEntry blockID="g1">
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g2">
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="22.0a1"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_9_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="16.0a1"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_10_LAYERS</feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="16.0a1" maxVersion="22.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_10_1_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="12.0" maxVersion="16.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> OPENGL_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g11">
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="14.0b2" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_OPENGL </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_ANGLE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="12.0" maxVersion="16.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_MSAA </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange maxVersion="13.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> STAGEFRIGHT </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION_ENCODE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION_DECODE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="17.2a2" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_11_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="13.2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> HARDWARE_VIDEO_DECODING </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>All</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="10.5" maxVersion="13.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_11_ANGLE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g1">
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g2">
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="22.0a1"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_9_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="16.0a1"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_10_LAYERS</feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="16.0a1" maxVersion="22.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_10_1_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="12.0" maxVersion="16.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> OPENGL_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g11">
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="14.0b2" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_OPENGL </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_ANGLE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="12.0" maxVersion="16.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_MSAA </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange maxVersion="13.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> STAGEFRIGHT </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION_ENCODE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION_DECODE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="17.2a2" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_11_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="13.2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> HARDWARE_VIDEO_DECODING </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="10.5" maxVersion="13.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_11_ANGLE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g1">
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g2">
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="22.0a1"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_9_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="16.0a1"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_10_LAYERS</feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="16.0a1" maxVersion="22.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_10_1_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="12.0" maxVersion="16.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> OPENGL_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g11">
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="14.0b2" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_OPENGL </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_ANGLE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="12.0" maxVersion="16.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_MSAA </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange maxVersion="13.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> STAGEFRIGHT </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION_ENCODE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION_DECODE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="17.2a2" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_11_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="13.2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> HARDWARE_VIDEO_DECODING </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Linux</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="10.5" maxVersion="13.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_11_ANGLE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g1">
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g2">
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="22.0a1"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_9_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="16.0a1"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_10_LAYERS</feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="16.0a1" maxVersion="22.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_10_1_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="12.0" maxVersion="16.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> OPENGL_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry blockID="g11">
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="14.0b2" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_OPENGL </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_ANGLE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="12.0" maxVersion="16.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBGL_MSAA </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange maxVersion="13.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> STAGEFRIGHT </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION_ENCODE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="42.0" maxVersion="13.0b2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> WEBRTC_HW_ACCELERATION_DECODE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="17.2a2" maxVersion="15.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_11_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="15.0" maxVersion="13.2"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> HARDWARE_VIDEO_DECODING </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+    <gfxBlacklistEntry>
+      <os>Android</os>
+      <vendor>0xabcd</vendor>
+      <versionRange minVersion="10.5" maxVersion="13.0"/>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT3D_11_ANGLE </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+    </gfxBlacklistEntry>
+
+  </gfxItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist_OSVersion.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist_OSVersion.xml
new file mode 100644
index 000000000..248868a2e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_gfxBlacklist_OSVersion.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <gfxItems>
+    <gfxBlacklistEntry>
+      <os>WINNT 6.2</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> DIRECT2D </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.2202 </driverVersion>
+      <driverVersionComparator> LESS_THAN </driverVersionComparator>
+    </gfxBlacklistEntry>
+    <gfxBlacklistEntry>
+      <os>Darwin 13</os>
+      <vendor>0xabcd</vendor>
+      <devices>
+        <device>0x2783</device>
+        <device>0x1234</device>
+        <device>0x2782</device>
+      </devices>
+      <feature> OPENGL_LAYERS </feature>
+      <featureStatus> BLOCKED_DRIVER_VERSION </featureStatus>
+      <driverVersion> 8.52.322.2202 </driverVersion>
+      <driverVersionComparator> LESS_THAN </driverVersionComparator>
+    </gfxBlacklistEntry>
+  </gfxItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_hotfix_1.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_hotfix_1.rdf
new file mode 100644
index 000000000..016726021
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_hotfix_1.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8" ?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:hotfix@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_hotfix_1.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_hotfix_2.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_hotfix_2.rdf
new file mode 100644
index 000000000..35a2befee
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_hotfix_2.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8" ?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:hotfix@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_hotfix_2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_hotfix_3.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_hotfix_3.rdf
new file mode 100644
index 000000000..7180da143
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_hotfix_3.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8" ?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:hotfix@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>3.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_hotfix_3.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_install.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_install.rdf
new file mode 100644
index 000000000..fe82334fa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_install.rdf
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:addon3@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon4@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon7@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>5.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_install.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_install.xml
new file mode 100644
index 000000000..33f14a2fd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_install.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="1">
+  <addon>
+    <name>Real Test 2</name>
+    <type id='1'>Extension</type>
+    <guid>addon2@tests.mozilla.org</guid>
+    <version>1.0</version>
+    <authors>
+      <author>
+        <name>Test Creator</name>
+        <link>http://example.com/creator.html</link>
+      </author>
+    </authors>
+    <status id='4'>Public</status>
+    <summary>Repository summary</summary>
+    <description>Repository description</description>
+    <compatible_applications>
+      <application>
+        <name>Firefox</name>
+        <appID>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+      <application>
+        <name>SeaMonkey</name>
+        <appID>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</appID>
+        <min_version>0</min_version>
+        <max_version>*</max_version>
+      </application>
+    </compatible_applications>
+    <compatible_os>ALL</compatible_os>
+    <install size="2">http://example.com/browser/toolkit/mozapps/extensions/test/browser/addons/browser_install1_2.xpi</install>
+  </addon>
+
+  <addon_compatibility hosted="false">
+    <guid>addon6@tests.mozilla.org</guid>
+    <name>Addon Test 6</name>
+    <version_ranges>
+      <version_range type="incompatible">
+        <min_version>1.0</min_version>
+        <max_version>1.0</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <min_version>1.0</min_version>
+            <max_version>1.0</max_version>
+            <appID>xpcshell@tests.mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_migrate.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_migrate.rdf
new file mode 100644
index 000000000..d1dc992d5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_migrate.rdf
@@ -0,0 +1,125 @@
+<?xml version="1.0"?>
+
+<!-- This is a copy of extensions.rdf from Firefox 3.5 including four
+     test extensions. Addon1 was user enabled, addon2 was user disabled, addon3
+     was pending user disable at the next restart and addon4 was pending user 
+     enable at the next restart. Additionally addon1 and 2 have had
+     compatibility updates applies to make them compatible with the app and
+     toolkit respectively, addon3 and 4 have not. addon5 is disabled however
+     at the same time as the migration a new version should be detected. addon6
+     is pending install and needs a compatibility update to be compatible.
+     It also contains two themes in the profile -->
+
+<RDF:RDF xmlns:NS1="http://www.mozilla.org/2004/em-rdf#"
+         xmlns:NC="http://home.netscape.com/NC-rdf#"
+         xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
+  <RDF:Description RDF:about="rdf:#$w8dNC3"
+                   NS1:id="xpcshell@tests.mozilla.org"
+                   NS1:minVersion="1"
+                   NS1:maxVersion="1" />
+  <RDF:Description RDF:about="rdf:#$w8dNC4"
+                   NS1:id="xpcshell@tests.mozilla.org"
+                   NS1:minVersion="1"
+                   NS1:maxVersion="2" />
+  <RDF:Description RDF:about="rdf:#$w8dNC5"
+                   NS1:id="xpcshell@tests.mozilla.org"
+                   NS1:minVersion="1"
+                   NS1:maxVersion="2" />
+  <RDF:Description RDF:about="rdf:#$w8dNC6"
+                   NS1:id="xpcshell@tests.mozilla.org"
+                   NS1:minVersion="1"
+                   NS1:maxVersion="2" />
+  <RDF:Description RDF:about="rdf:#$w8dNC2"
+                   NS1:id="toolkit@mozilla.org"
+                   NS1:minVersion="1"
+                   NS1:maxVersion="1" />
+  <RDF:Description RDF:about="rdf:#$w8dNC1"
+                   NS1:id="toolkit@mozilla.org"
+                   NS1:minVersion="1"
+                   NS1:maxVersion="2" />
+  <RDF:Description RDF:about="rdf:#$w8dNC7"
+                   NS1:id="toolkit@mozilla.org"
+                   NS1:minVersion="1"
+                   NS1:maxVersion="2" />
+  <RDF:Description RDF:about="rdf:#$oadNC1"
+                   NS1:id="xpcshell@tests.mozilla.org"
+                   NS1:minVersion="1"
+                   NS1:maxVersion="2" />
+  <RDF:Description RDF:about="rdf:#$TpnM4"
+                   NS1:id="xpcshell@tests.mozilla.org"
+                   NS1:updatedMinVersion="1"
+                   NS1:updatedMaxVersion="2" />
+  <RDF:Description RDF:about="urn:mozilla:item:addon1@tests.mozilla.org"
+                   NS1:installLocation="app-profile"
+                   NS1:version="1.0"
+                   NS1:name="Test 1">
+    <NS1:type NC:parseType="Integer">2</NS1:type>
+    <NS1:targetApplication RDF:resource="rdf:#$oadNC1"/>
+  </RDF:Description>
+  <RDF:Description RDF:about="urn:mozilla:item:addon2@tests.mozilla.org"
+                   NS1:installLocation="app-profile"
+                   NS1:version="2.0"
+                   NS1:name="Test 2"
+                   NS1:userDisabled="true">
+    <NS1:type NC:parseType="Integer">2</NS1:type>
+    <NS1:targetApplication RDF:resource="rdf:#$w8dNC1"/>
+  </RDF:Description>
+  <RDF:Description RDF:about="urn:mozilla:item:addon3@tests.mozilla.org"
+                   NS1:installLocation="app-profile"
+                   NS1:version="2.0"
+                   NS1:name="Test 3"
+                   NS1:userDisabled="needs-disable">
+    <NS1:type NC:parseType="Integer">2</NS1:type>
+    <NS1:targetApplication RDF:resource="rdf:#$w8dNC3"/>
+  </RDF:Description>
+  <RDF:Description RDF:about="urn:mozilla:item:addon4@tests.mozilla.org"
+                   NS1:installLocation="app-profile"
+                   NS1:version="2.0"
+                   NS1:name="Test 4"
+                   NS1:userDisabled="needs-enable">
+    <NS1:type NC:parseType="Integer">2</NS1:type>
+    <NS1:targetApplication RDF:resource="rdf:#$w8dNC2"/>
+  </RDF:Description>
+  <RDF:Description RDF:about="urn:mozilla:item:addon5@tests.mozilla.org"
+                   NS1:installLocation="app-profile"
+                   NS1:version="1.0"
+                   NS1:name="Test 5"
+                   NS1:userDisabled="true">
+    <NS1:type NC:parseType="Integer">2</NS1:type>
+    <NS1:targetApplication RDF:resource="rdf:#$w8dNC7"/>
+  </RDF:Description>
+  <RDF:Description RDF:about="urn:mozilla:item:addon6@tests.mozilla.org"
+                   NS1:name="Test 6"
+                   NS1:version="1.0"
+                   NS1:newVersion="1.0"
+                   NS1:installLocation="app-profile">
+    <NS1:type NC:parseType="Integer">2</NS1:type>
+    <NS1:targetApplication RDF:resource="rdf:#$TpnM4"/>
+  </RDF:Description>
+  <RDF:Description RDF:about="urn:mozilla:item:theme1@tests.mozilla.org"
+                   NS1:installLocation="app-profile"
+                   NS1:version="1.0"
+                   NS1:name="Theme 2"
+                   NS1:internalName="theme1/1.0">
+    <NS1:type NC:parseType="Integer">4</NS1:type>
+    <NS1:targetApplication RDF:resource="rdf:#$w8dNC5"/>
+  </RDF:Description>
+  <RDF:Description RDF:about="urn:mozilla:item:theme2@tests.mozilla.org"
+                   NS1:installLocation="app-profile"
+                   NS1:version="2.0"
+                   NS1:name="Theme 2"
+                   NS1:internalName="theme2/1.0">
+    <NS1:type NC:parseType="Integer">4</NS1:type>
+    <NS1:targetApplication RDF:resource="rdf:#$w8dNC6"/>
+  </RDF:Description>
+  <RDF:Seq RDF:about="urn:mozilla:item:root">
+    <RDF:li RDF:resource="urn:mozilla:item:addon1@tests.mozilla.org"/>
+    <RDF:li RDF:resource="urn:mozilla:item:addon2@tests.mozilla.org"/>
+    <RDF:li RDF:resource="urn:mozilla:item:addon3@tests.mozilla.org"/>
+    <RDF:li RDF:resource="urn:mozilla:item:addon4@tests.mozilla.org"/>
+    <RDF:li RDF:resource="urn:mozilla:item:addon5@tests.mozilla.org"/>
+    <RDF:li RDF:resource="urn:mozilla:item:addon6@tests.mozilla.org"/>
+    <RDF:li RDF:resource="urn:mozilla:item:theme1@tests.mozilla.org"/>
+    <RDF:li RDF:resource="urn:mozilla:item:theme2@tests.mozilla.org"/>
+  </RDF:Seq>
+</RDF:RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_migrate4.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_migrate4.rdf
new file mode 100644
index 000000000..a3bf4f8ae
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_migrate4.rdf
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:addon5@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon6@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_migrate4_6.xpi</em:updateLink>
+                <em:updateInfoURL>http://example.com/updateInfo.xhtml</em:updateInfoURL>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_no_update.json b/toolkit/mozapps/webextensions/test/xpcshell/data/test_no_update.json
new file mode 100644
index 000000000..2773c7f98
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_no_update.json
@@ -0,0 +1,7 @@
+{
+  "addons": {
+    "test_no_update_webext@tests.mozilla.org": {
+      "updates": []
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_overrideblocklist/ancient.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_overrideblocklist/ancient.xml
new file mode 100644
index 000000000..699257f87
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_overrideblocklist/ancient.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem  blockID="i454" id="ancient@tests.mozilla.org">
+      <versionRange  minVersion="0" maxVersion="*" severity="3"/>
+    </emItem>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_overrideblocklist/new.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_overrideblocklist/new.xml
new file mode 100644
index 000000000..8cbfb5d6a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_overrideblocklist/new.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist" lastupdate="1396046918000">
+  <emItems>
+    <emItem  blockID="i454" id="new@tests.mozilla.org">
+      <versionRange  minVersion="0" maxVersion="*" severity="3"/>
+    </emItem>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_overrideblocklist/old.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_overrideblocklist/old.xml
new file mode 100644
index 000000000..75bd6e934
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_overrideblocklist/old.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist" lastupdate="1296046918000">
+  <emItems>
+    <emItem  blockID="i454" id="old@tests.mozilla.org">
+      <versionRange  minVersion="0" maxVersion="*" severity="3"/>
+    </emItem>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_pluginBlocklistCtp.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_pluginBlocklistCtp.xml
new file mode 100644
index 000000000..d3564aebd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_pluginBlocklistCtp.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <pluginItems>
+    <pluginItem>
+      <match name="name" exp="^test_plugin_0"/>
+      <versionRange minVersion="0" maxVersion="*" severity="0" vulnerabilitystatus="0"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_plugin_1"/>
+      <versionRange minVersion="0" maxVersion="*" severity="0" vulnerabilitystatus="1"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_plugin_2"/>
+      <versionRange minVersion="0" maxVersion="*" severity="0" vulnerabilitystatus="2"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_plugin_3"/>
+      <versionRange minVersion="0" maxVersion="*" vulnerabilitystatus="2"/>
+    </pluginItem>
+    <pluginItem>
+      <match name="name" exp="^test_plugin_4"/>
+      <versionRange minVersion="0" maxVersion="*" severity="1" vulnerabilitystatus="2"/>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_pluginBlocklistCtpUndo.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_pluginBlocklistCtpUndo.xml
new file mode 100644
index 000000000..7cd8496b3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_pluginBlocklistCtpUndo.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <pluginItems>
+    <pluginItem>
+      <match name="name" exp="^Test Plug-in"/>
+      <versionRange minVersion="0" maxVersion="*" severity="0" vulnerabilitystatus="2"/>
+    </pluginItem>
+  </pluginItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_proxy/bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/data/test_proxy/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_proxy/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_softblocked1.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_softblocked1.xml
new file mode 100644
index 000000000..a1d18470c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_softblocked1.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<blocklist xmlns="http://www.mozilla.org/2006/addons-blocklist">
+  <emItems>
+    <emItem id="softblock1@tests.mozilla.org">
+      <versionRange severity="1"/>
+    </emItem>
+  </emItems>
+</blocklist>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_sourceURI.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_sourceURI.xml
new file mode 100644
index 000000000..949288e3f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_sourceURI.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="1">
+  <!-- Passes all requirements -->
+  <addon>
+    <name>Test</name>
+    <type id="1">Extension</type>
+    <guid>addon@tests.mozilla.org</guid>
+    <version>1</version>
+    <compatible_applications>
+      <application>
+        <appID>xpcshell@tests.mozilla.org</appID>
+        <min_version>1</min_version>
+        <max_version>1</max_version>
+      </application>
+    </compatible_applications>
+    <install>http://www.example.com/testaddon.xpi</install>
+  </addon>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_temporary/bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/data/test_temporary/bootstrap.js
new file mode 100644
index 000000000..1666f2972
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_temporary/bootstrap.js
@@ -0,0 +1 @@
+Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_update.json b/toolkit/mozapps/webextensions/test/xpcshell/data/test_update.json
new file mode 100644
index 000000000..027a9b233
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_update.json
@@ -0,0 +1,215 @@
+{
+  "addons": {
+    "addon1@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "1.0",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_min_version": "1"
+            }
+          }
+        },
+        {
+          "version": "1.0",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "2",
+              "strict_min_version": "2"
+            }
+          }
+        },
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:%PORT%/addons/test_update.xpi",
+          "update_info_url": "http://example.com/updateInfo.xhtml",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_min_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "addon2@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "1.0",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0",
+              "advisory_max_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "addon2@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "1.0",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0",
+              "advisory_max_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "addon3@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "1.0",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "3",
+              "advisory_max_version": "3"
+            }
+          }
+        }
+      ]
+    },
+
+    "addon4@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "5.0",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0",
+              "advisory_max_version": "0"
+            }
+          }
+        }
+      ]
+    },
+
+    "addon7@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "1.0",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0",
+              "advisory_max_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "addon8@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:%PORT%/addons/test_update8.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "advisory_max_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "addon9@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:%PORT%/addons/test_update9_2.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "advisory_max_version": "1"
+            }
+          }
+        },
+        {
+          "_comment_": "Incompatible when strict compatibility is enabled",
+          "version": "3.0",
+          "update_link": "http://localhost:%PORT%/addons/test_update9_3.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0.9",
+              "advisory_max_version": "0.9"
+            }
+          }
+        },
+        {
+          "_comment_": "Incompatible due to compatibility override",
+          "version": "4.0",
+          "update_link": "http://localhost:%PORT%/addons/test_update9_4.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0.9",
+              "advisory_max_version": "0.9"
+            }
+          }
+        },
+        {
+          "_comment_": "Addon for future version of app",
+          "version": "4.0",
+          "update_link": "http://localhost:%PORT%/addons/test_update9_5.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "5",
+              "advisory_max_version": "6"
+            }
+          }
+        }
+      ]
+    },
+
+    "addon10@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "1.0",
+          "update_link": "http://localhost:%PORT%/addons/test_update10.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0.1",
+              "advisory_max_version": "0.4"
+            }
+          }
+        }
+      ]
+    },
+
+    "addon11@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:%PORT%/addons/test_update11.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0.1",
+              "strict_max_version": "0.2"
+            }
+          }
+        }
+      ]
+    },
+
+    "addon12@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:%PORT%/addons/test_update12.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "advisory_max_version": "1"
+            }
+          }
+        }
+      ]
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_update.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_update.rdf
new file mode 100644
index 000000000..4d4640f60
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_update.rdf
@@ -0,0 +1,270 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:addon1@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <!-- Shouldn't fire onCompatibilityUpdateAvailable since this
+                 information is already in the install.rdf -->
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+
+            <!-- Should be ignored as it is not for the present version of the
+                 application -->
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_update.xpi</em:updateLink>
+                <em:updateInfoURL>http://example.com/updateInfo.xhtml</em:updateInfoURL>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon2@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon3@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>3</em:minVersion>
+                <em:maxVersion>3</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon4@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>5.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>0</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon7@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon8@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_update8.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon9@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_update9_2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <!-- Incompatible when strict compatibility is enabled -->
+        <li>
+          <Description>
+            <em:version>3.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0.9</em:minVersion>
+                <em:maxVersion>0.9</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_update9_3.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <!-- Incompatible due to compatibility override -->
+        <li>
+          <Description>
+            <em:version>4.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0.9</em:minVersion>
+                <em:maxVersion>0.9</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_update9_4.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <!-- Addon for future version of app -->
+        <li>
+          <Description>
+            <em:version>5.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>5</em:minVersion>
+                <em:maxVersion>6</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_update9_5.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon10@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0.1</em:minVersion>
+                <em:maxVersion>0.4</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_update10.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:extension:addon11@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0.1</em:minVersion>
+                <em:maxVersion>0.2</em:maxVersion>
+                <em:strictCompatibility>true</em:strictCompatibility>
+                <em:updateLink>http://localhost:%PORT%/addons/test_update11.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <Description about="urn:mozilla:item:addon12@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:%PORT%/addons/test_update12.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_update.xml b/toolkit/mozapps/webextensions/test/xpcshell/data/test_update.xml
new file mode 100644
index 000000000..62928815b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_update.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<searchresults total_results="11">
+  <addon>
+    <name>Test Addon 9</name>
+    <type id="1">Extension</type>
+    <guid>addon9@tests.mozilla.org</guid>
+  </addon>
+  <addon_compatibility hosted="true">
+    <guid>addon9@tests.mozilla.org</guid>
+    <name>Test Addon 9</name>
+    <version_ranges>
+      <version_range type="incompatible">
+        <min_version>4</min_version>
+        <max_version>4</max_version>
+        <compatible_applications>
+          <application>
+            <name>XPCShell</name>
+            <min_version>1</min_version>
+            <max_version>1</max_version>
+            <appID>xpcshell@tests.mozilla.org</appID>
+          </application>
+        </compatible_applications>
+      </version_range>
+    </version_ranges>
+  </addon_compatibility>
+</searchresults>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_update_multi.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_update_multi.rdf
new file mode 100644
index 000000000..f28a3f26d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_update_multi.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:updatemulti@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:4444/addons/test_update_multi2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecheck.json b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecheck.json
new file mode 100644
index 000000000..811e50158
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecheck.json
@@ -0,0 +1,327 @@
+{
+  "addons": {
+    "updatecheck1@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "1.0",
+          "update_link": "https://localhost:4444/addons/test1.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "1"
+            }
+          }
+        },
+        {
+          "_comment_": "This update is incompatible and so should not be considered a valid update",
+          "version": "2.0",
+          "update_link": "https://localhost:4444/addons/test2.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "2",
+              "strict_max_version": "2"
+            }
+          }
+        },
+        {
+          "version": "3.0",
+          "update_link": "https://localhost:4444/addons/test3.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "1"
+            }
+          }
+        },
+        {
+          "version": "2.0",
+          "update_link": "https://localhost:4444/addons/test2.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "2"
+            }
+          }
+        },
+        {
+          "_comment_": "This update is incompatible and so should not be considered a valid update",
+          "version": "4.0",
+          "update_link": "https://localhost:4444/addons/test4.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "2",
+              "strict_max_version": "2"
+            }
+          }
+        }
+      ]
+    },
+
+    "test_bug378216_5@tests.mozilla.org": {
+      "_comment_": "An update which expects a signature. It will fail since signatures are ",
+      "_comment_": "supported in this format.",
+      "_comment_": "The updateLink will also be ignored since it is not secure and there ",
+      "_comment_": "is no updateHash.",
+
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:4444/broken.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "1"
+             }
+           }
+         }
+      ]
+    },
+
+    "test_bug378216_5@tests.mozilla.org": {
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:4444/broken.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "1"
+             }
+           }
+         }
+      ]
+    },
+
+    "test_bug378216_7@tests.mozilla.org": {
+      "_comment_": "An update which expects a signature. It will fail since signatures are ",
+      "_comment_": "supported in this format.",
+      "_comment_": "The updateLink will also be ignored since it is not secure ",
+      "_comment_": "and there is no updateHash.",
+
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:4444/broken.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "2"
+            }
+          }
+        }
+      ]
+    },
+
+    "test_bug378216_8@tests.mozilla.org": {
+      "_comment_": "The updateLink will be ignored since it is not secure and ",
+      "_comment_": "there is no updateHash.",
+
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:4444/broken.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "test_bug378216_9@tests.mozilla.org": {
+      "_comment_": "The updateLink will used since there is an updateHash to verify it.",
+
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:4444/broken.xpi",
+          "update_hash": "sha256:78fc1d2887eda35b4ad2e3a0b60120ca271ce6e6",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "test_bug378216_10@tests.mozilla.org": {
+      "_comment_": "The updateLink will used since it is a secure URL.",
+
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "https://localhost:4444/broken.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "test_bug378216_11@tests.mozilla.org": {
+      "_comment_": "The updateLink will used since it is a secure URL.",
+
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "https://localhost:4444/broken.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "test_bug378216_12@tests.mozilla.org": {
+      "_comment_": "The updateLink will not be used since the updateHash ",
+      "_comment_": "verifying it is not strong enough.",
+
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "http://localhost:4444/broken.xpi",
+          "update_hash": "sha1:78fc1d2887eda35b4ad2e3a0b60120ca271ce6e6",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "test_bug378216_13@tests.mozilla.org": {
+      "_comment_": "An update with a weak hash. The updateLink will used since it is ",
+      "_comment_": "a secure URL.",
+
+      "updates": [
+        {
+          "version": "2.0",
+          "update_link": "https://localhost:4444/broken.xpi",
+          "update_hash": "sha1:78fc1d2887eda35b4ad2e3a0b60120ca271ce6e6",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "1",
+              "strict_max_version": "1"
+            }
+          }
+        }
+      ]
+    },
+
+    "_comment_": "There should be no information present for test_bug378216_14",
+
+    "test_bug378216_15@tests.mozilla.org": {
+      "_comment_": "Invalid update JSON",
+
+      "updates": "foo"
+    },
+
+    "ignore-compat@tests.mozilla.org": {
+      "_comment_": "Various updates available - one is not compatible, but compatibility checking is disabled",
+
+      "updates": [
+        {
+          "version": "1.0",
+          "update_link": "https://localhost:4444/addons/test1.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0.1",
+              "advisory_max_version": "0.2"
+            }
+          }
+        },
+        {
+          "version": "2.0",
+          "update_link": "https://localhost:4444/addons/test2.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0.5",
+              "advisory_max_version": "0.6"
+            }
+          }
+        },
+        {
+          "_comment_": "Update for future app versions - should never be compatible",
+          "version": "3.0",
+          "update_link": "https://localhost:4444/addons/test3.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "2",
+              "advisory_max_version": "3"
+            }
+          }
+        }
+      ]
+    },
+
+    "compat-override@tests.mozilla.org": {
+      "_comment_": "Various updates available - one is not compatible, but compatibility checking is disabled",
+
+      "updates": [
+        {
+          "_comment_": "Has compatibility override, but it doesn't match this app version",
+          "version": "1.0",
+          "update_link": "https://localhost:4444/addons/test1.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0.1",
+              "advisory_max_version": "0.2"
+            }
+          }
+        },
+        {
+          "_comment_": "Has compatibility override, so is incompaible",
+          "version": "2.0",
+          "update_link": "https://localhost:4444/addons/test2.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0.5",
+              "advisory_max_version": "0.6"
+            }
+          }
+        },
+        {
+          "_comment_": "Update for future app versions - should never be compatible",
+          "version": "3.0",
+          "update_link": "https://localhost:4444/addons/test3.xpi",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "2",
+              "advisory_max_version": "3"
+            }
+          }
+        }
+      ]
+    },
+
+    "compat-strict-optin@tests.mozilla.org": {
+      "_comment_": "Opt-in to strict compatibility checking",
+
+      "updates": [
+        {
+          "version": "1.0",
+          "update_link": "https://localhost:4444/addons/test1.xpi",
+          "_comment_": "strictCompatibility: true",
+          "applications": {
+            "gecko": {
+              "strict_min_version": "0.1",
+              "strict_max_version": "0.2"
+            }
+          }
+        }
+      ]
+    }
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecheck.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecheck.rdf
new file mode 100644
index 000000000..c5d97ada0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecheck.rdf
@@ -0,0 +1,419 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:updatecheck1@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test1.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <!-- This update is incompatible and so should not be considered a valid
+             update -->
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <li>
+          <Description>
+            <em:version>3.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test3.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <!-- This update is incompatible and so should not be considered a valid
+             update -->
+        <li>
+          <Description>
+            <em:version>4.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test4.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <!-- An update with no signature which will fail if retrieved with an update
+       key. The updateLink will also be ignored since it is not secure and there
+       is no updateHash. -->
+  <RDF:Description about="urn:mozilla:extension:test_bug378216_5@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+  </RDF:Description>
+
+  <!-- An update with a broken signature which will fail if retrieved with an
+       update key. The updateLink will also be ignored since it is not secure
+       and there is no updateHash. -->
+  <RDF:Description about="urn:mozilla:extension:test_bug378216_7@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+    <em:signature>MIGTMA0GCSqGSIb3DQEBBQUAA4GBAMO1O2gwSCCth1GwYMgscfaNakpN40PJfOWt
+                  ub2HVdg8+OXMciF8d/9eVWm8eH/IxuxyZlmRZTs3O5tv9eWAY5uBCtqDf1WgTsGk
+                  jrgZow1fITkZI7w0//C8eKdMLAtGueGfNs2IlTd5P/0KH/hf1rPc1wUqEqKCd4+L
+                  BcVq13ad</em:signature>
+  </RDF:Description>
+
+  <!-- An update with a valid signature. The updateLink will be ignored since it
+       is not secure and there is no updateHash. -->
+  <RDF:Description about="urn:mozilla:extension:test_bug378216_8@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+    <em:signature>MIGTMA0GCSqGSIb3DQEBBQUAA4GBAMH/33P/bn148mVkAB8i5X8c4LhY52E+MPUT
+                  yKHGpowZnRLgL2O0dfpm+rljOBfKi51322PFrsc6VIFml6x4Lrb5foxSyB0Vs9pb
+                  SEDFWUKquOQvceQ9iEx5Pe0VzrmUZgcQxd8ksSunWL4wJaBZ/evE5amFC6sw3pv/
+                  fjt8p3GN</em:signature>
+  </RDF:Description>
+
+  <!-- An update with a valid signature. The updateLink will used since there is
+       an updateHash to verify it. -->
+  <RDF:Description about="urn:mozilla:extension:test_bug378216_9@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+                <em:updateHash>sha1:78fc1d2887eda35b4ad2e3a0b60120ca271ce6e6</em:updateHash>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+    <em:signature>MIGTMA0GCSqGSIb3DQEBBQUAA4GBAJ5Dv3Zd7/j5dLchCw9iO/cxPq8oOhOYD2M+
+                  jUKvmHCyTBRIEaJrE4N7yVbRYk++ERIfyVepLivsVi4pBmF7JTdw0NaKUA0LiOoT
+                  mRL8I7s5NPjCiiNcdqbncWyiZwIj1w1nkbWGTlH/gEjRW/LbvT4JAuec8yNFDa4S
+                  X8mOMf7k</em:signature>
+  </RDF:Description>
+
+  <!-- An update with a valid signature. The updateLink will used since it is
+       a secure URL. -->
+  <RDF:Description about="urn:mozilla:extension:test_bug378216_10@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>https://localhost:4444/broken.xpi</em:updateLink>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+    <em:signature>MIGTMA0GCSqGSIb3DQEBBQUAA4GBAGvf7XqqoTl5WofrNq55E7W+UttOEDXLB3Oi
+                  XDiXe0i6njlozilseaUo1hgfQhhzN9gkyetP5tGBVcLRrVyliKpJmD6ABCVGW1lS
+                  qS+SEw7gDHyHkvwKMyWKedpRGChqLYnnf+Y+CX3MWLZLkwPXMKdTYgN3Rx0lEnJk
+                  37LSEMKE</em:signature>
+  </RDF:Description>
+
+  <!-- An update with a valid signature. The updateLink will used since it is
+       a secure URL. -->
+  <RDF:Description about="urn:mozilla:extension:test_bug378216_11@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>https://localhost:4444/broken.xpi</em:updateLink>
+                <em:updateHash>sha1:78fc1d2887eda35b4ad2e3a0b60120ca271ce6e6</em:updateHash>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+    <em:signature>MIGTMA0GCSqGSIb3DQEBBQUAA4GBACMX/KReOGSJ8CMGRroH1v3Gjv/Qs/pqH+Ow
+                  o+hCKWLUKx7hpJgVJkXXdAHW0U88NXlp1S2H0WqA7I/CdmNXJSPzzV/J4z1dZgXh
+                  JbW6mqNb0pj6nIe7g8OLzSxDgBmO4DUP5DAmnmqciJLWQzN7OdbcwrWz6xPN5kZF
+                  A90eF5zy</em:signature>
+  </RDF:Description>
+
+  <!-- An update with a valid signature. The updateLink will not be used since the
+       updateHash verifying it is not strong enough. -->
+  <RDF:Description about="urn:mozilla:extension:test_bug378216_12@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:4444/broken.xpi</em:updateLink>
+                <em:updateHash>md2:78fc1d2887eda35b4ad2e3a0b60120ca271ce6e6</em:updateHash>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+    <em:signature>MIGTMA0GCSqGSIb3DQEBBQUAA4GBAJRfcFvHIWxVyycCw8IjNmEhabc2uqA1zQwp
+                  5oKh3Y23hwIsQ6xy68Wtjte1NEYFRt5fWkbMXj9YQj6LpVbzBKiGATcrq6MycZKK
+                  o5N22cWbrKKRweJezTyN4eLfQg21pG7r8mdfS0bIA28ZVFtQOmORejoUesEouCGy
+                  eKYk9nS2</em:signature>
+  </RDF:Description>
+
+  <!-- An update with a valid signature. The updateLink will used since it is
+       a secure URL. -->
+  <RDF:Description about="urn:mozilla:extension:test_bug378216_13@tests.mozilla.org">
+    <em:updates>
+      <RDF:Seq>
+        <RDF:li>
+          <RDF:Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <RDF:Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>https://localhost:4444/broken.xpi</em:updateLink>
+                <em:updateHash>md2:78fc1d2887eda35b4ad2e3a0b60120ca271ce6e6</em:updateHash>
+              </RDF:Description>
+            </em:targetApplication>
+          </RDF:Description>
+        </RDF:li>
+      </RDF:Seq>
+    </em:updates>
+    <em:signature>MIGTMA0GCSqGSIb3DQEBBQUAA4GBALQKwzLFr/VOw3gJvv/LCh3/PWDd9FqmFnX+
+                  hJjBmCaUDtG7CXn1i0h8ed8IeRHpLLT7FCzVwU3bH9BUjdm8wc3ObtlNbd8go01a
+                  CoXz50r3rYPcYz4WS+7/+lvrUqsuWd9Wj+q0NeCPiNaaro6/AolE2Qf5JFRL3lxY
+                  lsKWAnVO</em:signature>
+  </RDF:Description>
+
+  <!-- There should be no information present for test_bug378216_14 -->
+
+  <!-- Invalid update RDF -->
+  <RDF:Description about="urn:mozilla:extension:test_bug378216_15@tests.mozilla.org">
+    <em:updates>Foo</em:updates>
+  </RDF:Description>
+
+  <!-- Various updates available - one is not compatible, but compatibility checking is disabled -->
+  <Description about="urn:mozilla:extension:ignore-compat@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0.1</em:minVersion>
+                <em:maxVersion>0.2</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test1.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0.5</em:minVersion>
+                <em:maxVersion>0.6</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <!-- Update for future app versions - should never be compatible -->
+        <li>
+          <Description>
+            <em:version>3.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>3</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test3.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <!-- Various updates available - one is not compatible, but compatibility checking is disabled -->
+  <Description about="urn:mozilla:extension:compat-override@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <!-- Has compatibility override, but it doesn't match this app version -->
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0.1</em:minVersion>
+                <em:maxVersion>0.2</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test1.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <!-- Has compatibility override, so is incompaible -->
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0.5</em:minVersion>
+                <em:maxVersion>0.6</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+        <!-- Update for future app versions - should never be compatible -->
+        <li>
+          <Description>
+            <em:version>3.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>2</em:minVersion>
+                <em:maxVersion>3</em:maxVersion>
+                <em:updateLink>https://localhost:4444/addons/test3.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+  <!-- Opt-in to strict compatibility checking -->
+  <Description about="urn:mozilla:extension:compat-strict-optin@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>1.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>0.1</em:minVersion>
+                <em:maxVersion>0.2</em:maxVersion>
+                <em:strictCompatibility>true</em:strictCompatibility>
+                <em:updateLink>https://localhost:4444/addons/test1.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecompatmode_ignore.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecompatmode_ignore.rdf
new file mode 100644
index 000000000..ec6e88ec4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecompatmode_ignore.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:compatmode-ignore@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>https://localhost:%PORT%/addons/test1.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecompatmode_normal.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecompatmode_normal.rdf
new file mode 100644
index 000000000..2ef88860e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecompatmode_normal.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:compatmode-normal@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>https://localhost:%PORT%/addons/test1.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecompatmode_strict.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecompatmode_strict.rdf
new file mode 100644
index 000000000..2f72c181d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updatecompatmode_strict.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:compatmode-strict@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>2</em:maxVersion>
+                <em:updateLink>https://localhost:%PORT%/addons/test1.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/test_updateid.rdf b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updateid.rdf
new file mode 100644
index 000000000..c13928520
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/test_updateid.rdf
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:extension:addon1@tests.mozilla.org">
+    <em:updates>
+      <Seq>
+        <li>
+          <Description>
+            <em:version>2.0</em:version>
+            <em:targetApplication>
+              <Description>
+                <em:id>xpcshell@tests.mozilla.org</em:id>
+                <em:minVersion>1</em:minVersion>
+                <em:maxVersion>1</em:maxVersion>
+                <em:updateLink>http://localhost:4444/addons/test_updateid2.xpi</em:updateLink>
+              </Description>
+            </em:targetApplication>
+          </Description>
+        </li>
+      </Seq>
+    </em:updates>
+  </Description>
+
+</RDF>
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/unsigned.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/unsigned.xpi
new file mode 100644
index 000000000..51b00475a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/unsigned.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/data/webext-implicit-id.xpi b/toolkit/mozapps/webextensions/test/xpcshell/data/webext-implicit-id.xpi
new file mode 100644
index 000000000..6b4abaa69
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/data/webext-implicit-id.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/head_addons.js b/toolkit/mozapps/webextensions/test/xpcshell/head_addons.js
new file mode 100644
index 000000000..960caceeb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/head_addons.js
@@ -0,0 +1,1345 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var AM_Cc = Components.classes;
+var AM_Ci = Components.interfaces;
+var AM_Cu = Components.utils;
+
+AM_Cu.importGlobalProperties(["TextEncoder"]);
+
+const CERTDB_CONTRACTID = "@mozilla.org/security/x509certdb;1";
+const CERTDB_CID = Components.ID("{fb0bbc5c-452e-4783-b32c-80124693d871}");
+
+const PREF_EM_CHECK_UPDATE_SECURITY   = "extensions.checkUpdateSecurity";
+const PREF_EM_STRICT_COMPATIBILITY    = "extensions.strictCompatibility";
+const PREF_EM_MIN_COMPAT_APP_VERSION      = "extensions.minCompatibleAppVersion";
+const PREF_EM_MIN_COMPAT_PLATFORM_VERSION = "extensions.minCompatiblePlatformVersion";
+const PREF_GETADDONS_BYIDS               = "extensions.getAddons.get.url";
+const PREF_GETADDONS_BYIDS_PERFORMANCE   = "extensions.getAddons.getWithPerformance.url";
+const PREF_XPI_SIGNATURES_REQUIRED    = "xpinstall.signatures.required";
+
+// Forcibly end the test if it runs longer than 15 minutes
+const TIMEOUT_MS = 900000;
+
+// Maximum error in file modification times. Some file systems don't store
+// modification times exactly. As long as we are closer than this then it
+// still passes.
+const MAX_TIME_DIFFERENCE = 3000;
+
+// Time to reset file modified time relative to Date.now() so we can test that
+// times are modified (10 hours old).
+const MAKE_FILE_OLD_DIFFERENCE = 10 * 3600 * 1000;
+
+Components.utils.import("resource://gre/modules/addons/AddonRepository.jsm");
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Components.utils.import("resource://gre/modules/FileUtils.jsm");
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/NetUtil.jsm");
+Components.utils.import("resource://gre/modules/Promise.jsm");
+Components.utils.import("resource://gre/modules/Task.jsm");
+const { OS } = Components.utils.import("resource://gre/modules/osfile.jsm", {});
+Components.utils.import("resource://gre/modules/AsyncShutdown.jsm");
+
+Components.utils.import("resource://testing-common/AddonTestUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "Extension",
+                                  "resource://gre/modules/Extension.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ExtensionTestUtils",
+                                  "resource://testing-common/ExtensionXPCShellUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "HttpServer",
+                                  "resource://testing-common/httpd.js");
+XPCOMUtils.defineLazyModuleGetter(this, "MockAsyncShutdown",
+                                  "resource://testing-common/AddonTestUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "MockRegistrar",
+                                  "resource://testing-common/MockRegistrar.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "MockRegistry",
+                                  "resource://testing-common/MockRegistry.jsm");
+
+const {
+  awaitPromise,
+  createAppInfo,
+  createInstallRDF,
+  createTempWebExtensionFile,
+  createUpdateRDF,
+  getFileForAddon,
+  manuallyInstall,
+  manuallyUninstall,
+  promiseAddonByID,
+  promiseAddonEvent,
+  promiseAddonsByIDs,
+  promiseAddonsWithOperationsByTypes,
+  promiseCompleteAllInstalls,
+  promiseConsoleOutput,
+  promiseFindAddonUpdates,
+  promiseInstallAllFiles,
+  promiseInstallFile,
+  promiseRestartManager,
+  promiseSetExtensionModifiedTime,
+  promiseShutdownManager,
+  promiseStartupManager,
+  promiseWriteProxyFileToDir,
+  registerDirectory,
+  setExtensionModifiedTime,
+  writeFilesToZip
+} = AddonTestUtils;
+
+// WebExtension wrapper for ease of testing
+ExtensionTestUtils.init(this);
+
+AddonTestUtils.init(this);
+AddonTestUtils.overrideCertDB();
+
+Object.defineProperty(this, "gAppInfo", {
+  get() {
+    return AddonTestUtils.appInfo;
+  },
+});
+
+Object.defineProperty(this, "gExtensionsINI", {
+  get() {
+    return AddonTestUtils.extensionsINI.clone();
+  },
+});
+
+Object.defineProperty(this, "gInternalManager", {
+  get() {
+    return AddonTestUtils.addonIntegrationService.QueryInterface(AM_Ci.nsITimerCallback);
+  },
+});
+
+Object.defineProperty(this, "gProfD", {
+  get() {
+    return AddonTestUtils.profileDir.clone();
+  },
+});
+
+Object.defineProperty(this, "gTmpD", {
+  get() {
+    return AddonTestUtils.tempDir.clone();
+  },
+});
+
+Object.defineProperty(this, "gUseRealCertChecks", {
+  get() {
+    return AddonTestUtils.useRealCertChecks;
+  },
+  set(val) {
+   return AddonTestUtils.useRealCertChecks = val;
+  },
+});
+
+Object.defineProperty(this, "TEST_UNPACKED", {
+  get() {
+    return AddonTestUtils.testUnpacked;
+  },
+  set(val) {
+   return AddonTestUtils.testUnpacked = val;
+  },
+});
+
+// We need some internal bits of AddonManager
+var AMscope = Components.utils.import("resource://gre/modules/AddonManager.jsm", {});
+var { AddonManager, AddonManagerInternal, AddonManagerPrivate } = AMscope;
+
+var gPort = null;
+var gUrlToFileMap = {};
+
+// Map resource://xpcshell-data/ to the data directory
+var resHandler = Services.io.getProtocolHandler("resource")
+                         .QueryInterface(AM_Ci.nsISubstitutingProtocolHandler);
+// Allow non-existent files because of bug 1207735
+var dataURI = NetUtil.newURI(do_get_file("data", true));
+resHandler.setSubstitution("xpcshell-data", dataURI);
+
+function isManifestRegistered(file) {
+  let manifests = Components.manager.getManifestLocations();
+  for (let i = 0; i < manifests.length; i++) {
+    let manifest = manifests.queryElementAt(i, AM_Ci.nsIURI);
+
+    // manifest is the url to the manifest file either in an XPI or a directory.
+    // We want the location of the XPI or directory itself.
+    if (manifest instanceof AM_Ci.nsIJARURI) {
+      manifest = manifest.JARFile.QueryInterface(AM_Ci.nsIFileURL).file;
+    }
+    else if (manifest instanceof AM_Ci.nsIFileURL) {
+      manifest = manifest.file.parent;
+    }
+    else {
+      continue;
+    }
+
+    if (manifest.equals(file))
+      return true;
+  }
+  return false;
+}
+
+// Listens to messages from bootstrap.js telling us what add-ons were started
+// and stopped etc. and performs some sanity checks that only installed add-ons
+// are started etc.
+this.BootstrapMonitor = {
+  inited: false,
+
+  // Contain the current state of add-ons in the system
+  installed: new Map(),
+  started: new Map(),
+
+  // Contain the last state of shutdown and uninstall calls for an add-on
+  stopped: new Map(),
+  uninstalled: new Map(),
+
+  startupPromises: [],
+  installPromises: [],
+
+  init() {
+    this.inited = true;
+    Services.obs.addObserver(this, "bootstrapmonitor-event", false);
+  },
+
+  shutdownCheck() {
+    if (!this.inited)
+      return;
+
+    do_check_eq(this.started.size, 0);
+  },
+
+  clear(id) {
+    this.installed.delete(id);
+    this.started.delete(id);
+    this.stopped.delete(id);
+    this.uninstalled.delete(id);
+  },
+
+  promiseAddonStartup(id) {
+    return new Promise(resolve => {
+      this.startupPromises.push(resolve);
+    });
+  },
+
+  promiseAddonInstall(id) {
+    return new Promise(resolve => {
+      this.installPromises.push(resolve);
+    });
+  },
+
+  checkMatches(cached, current) {
+    do_check_neq(cached, undefined);
+    do_check_eq(current.data.version, cached.data.version);
+    do_check_eq(current.data.installPath, cached.data.installPath);
+    do_check_eq(current.data.resourceURI, cached.data.resourceURI);
+  },
+
+  checkAddonStarted(id, version = undefined) {
+    let started = this.started.get(id);
+    do_check_neq(started, undefined);
+    if (version != undefined)
+      do_check_eq(started.data.version, version);
+
+    // Chrome should be registered by now
+    let installPath = new FileUtils.File(started.data.installPath);
+    let isRegistered = isManifestRegistered(installPath);
+    do_check_true(isRegistered);
+  },
+
+  checkAddonNotStarted(id) {
+    do_check_false(this.started.has(id));
+  },
+
+  checkAddonInstalled(id, version = undefined) {
+    const installed = this.installed.get(id);
+    notEqual(installed, undefined);
+    if (version !== undefined) {
+      equal(installed.data.version, version);
+    }
+    return installed;
+  },
+
+  checkAddonNotInstalled(id) {
+    do_check_false(this.installed.has(id));
+  },
+
+  observe(subject, topic, data) {
+    let info = JSON.parse(data);
+    let id = info.data.id;
+    let installPath = new FileUtils.File(info.data.installPath);
+
+    if (subject && subject.wrappedJSObject) {
+      // NOTE: in some of the new tests, we need to received the real objects instead of
+      // their JSON representations, but most of the current tests expect intallPath
+      // and resourceURI to have been converted to strings.
+      info.data = Object.assign({}, subject.wrappedJSObject.data, {
+        installPath: info.data.installPath,
+        resourceURI: info.data.resourceURI,
+      });
+    }
+
+    // If this is the install event the add-ons shouldn't already be installed
+    if (info.event == "install") {
+      this.checkAddonNotInstalled(id);
+
+      this.installed.set(id, info);
+
+      for (let resolve of this.installPromises)
+        resolve();
+      this.installPromises = [];
+    }
+    else {
+      this.checkMatches(this.installed.get(id), info);
+    }
+
+    // If this is the shutdown event than the add-on should already be started
+    if (info.event == "shutdown") {
+      this.checkMatches(this.started.get(id), info);
+
+      this.started.delete(id);
+      this.stopped.set(id, info);
+
+      // Chrome should still be registered at this point
+      let isRegistered = isManifestRegistered(installPath);
+      do_check_true(isRegistered);
+
+      // XPIProvider doesn't bother unregistering chrome on app shutdown but
+      // since we simulate restarts we must do so manually to keep the registry
+      // consistent.
+      if (info.reason == 2 /* APP_SHUTDOWN */)
+        Components.manager.removeBootstrappedManifestLocation(installPath);
+    }
+    else {
+      this.checkAddonNotStarted(id);
+    }
+
+    if (info.event == "uninstall") {
+      // Chrome should be unregistered at this point
+      let isRegistered = isManifestRegistered(installPath);
+      do_check_false(isRegistered);
+
+      this.installed.delete(id);
+      this.uninstalled.set(id, info)
+    }
+    else if (info.event == "startup") {
+      this.started.set(id, info);
+
+      // Chrome should be registered at this point
+      let isRegistered = isManifestRegistered(installPath);
+      do_check_true(isRegistered);
+
+      for (let resolve of this.startupPromises)
+        resolve();
+      this.startupPromises = [];
+    }
+  }
+}
+
+AddonTestUtils.on("addon-manager-shutdown", () => BootstrapMonitor.shutdownCheck());
+
+function isNightlyChannel() {
+  var channel = "default";
+  try {
+    channel = Services.prefs.getCharPref("app.update.channel");
+  }
+  catch (e) { }
+
+  return channel != "aurora" && channel != "beta" && channel != "release" && channel != "esr";
+}
+
+/**
+ * Tests that an add-on does appear in the crash report annotations, if
+ * crash reporting is enabled. The test will fail if the add-on is not in the
+ * annotation.
+ * @param  aId
+ *         The ID of the add-on
+ * @param  aVersion
+ *         The version of the add-on
+ */
+function do_check_in_crash_annotation(aId, aVersion) {
+  if (!("nsICrashReporter" in AM_Ci))
+    return;
+
+  if (!("Add-ons" in gAppInfo.annotations)) {
+    do_check_false(true);
+    return;
+  }
+
+  let addons = gAppInfo.annotations["Add-ons"].split(",");
+  do_check_false(addons.indexOf(encodeURIComponent(aId) + ":" +
+                                encodeURIComponent(aVersion)) < 0);
+}
+
+/**
+ * Tests that an add-on does not appear in the crash report annotations, if
+ * crash reporting is enabled. The test will fail if the add-on is in the
+ * annotation.
+ * @param  aId
+ *         The ID of the add-on
+ * @param  aVersion
+ *         The version of the add-on
+ */
+function do_check_not_in_crash_annotation(aId, aVersion) {
+  if (!("nsICrashReporter" in AM_Ci))
+    return;
+
+  if (!("Add-ons" in gAppInfo.annotations)) {
+    do_check_true(true);
+    return;
+  }
+
+  let addons = gAppInfo.annotations["Add-ons"].split(",");
+  do_check_true(addons.indexOf(encodeURIComponent(aId) + ":" +
+                               encodeURIComponent(aVersion)) < 0);
+}
+
+/**
+ * Returns a testcase xpi
+ *
+ * @param  aName
+ *         The name of the testcase (without extension)
+ * @return an nsIFile pointing to the testcase xpi
+ */
+function do_get_addon(aName) {
+  return do_get_file("addons/" + aName + ".xpi");
+}
+
+function do_get_addon_hash(aName, aAlgorithm) {
+  let file = do_get_addon(aName);
+  return do_get_file_hash(file);
+}
+
+function do_get_file_hash(aFile, aAlgorithm) {
+  if (!aAlgorithm)
+    aAlgorithm = "sha1";
+
+  let crypto = AM_Cc["@mozilla.org/security/hash;1"].
+               createInstance(AM_Ci.nsICryptoHash);
+  crypto.initWithString(aAlgorithm);
+  let fis = AM_Cc["@mozilla.org/network/file-input-stream;1"].
+            createInstance(AM_Ci.nsIFileInputStream);
+  fis.init(aFile, -1, -1, false);
+  crypto.updateFromStream(fis, aFile.fileSize);
+
+  // return the two-digit hexadecimal code for a byte
+  let toHexString = charCode => ("0" + charCode.toString(16)).slice(-2);
+
+  let binary = crypto.finish(false);
+  let hash = Array.from(binary, c => toHexString(c.charCodeAt(0)));
+  return aAlgorithm + ":" + hash.join("");
+}
+
+/**
+ * Returns an extension uri spec
+ *
+ * @param  aProfileDir
+ *         The extension install directory
+ * @return a uri spec pointing to the root of the extension
+ */
+function do_get_addon_root_uri(aProfileDir, aId) {
+  let path = aProfileDir.clone();
+  path.append(aId);
+  if (!path.exists()) {
+    path.leafName += ".xpi";
+    return "jar:" + Services.io.newFileURI(path).spec + "!/";
+  }
+  return Services.io.newFileURI(path).spec;
+}
+
+function do_get_expected_addon_name(aId) {
+  if (TEST_UNPACKED)
+    return aId;
+  return aId + ".xpi";
+}
+
+/**
+ * Check that an array of actual add-ons is the same as an array of
+ * expected add-ons.
+ *
+ * @param  aActualAddons
+ *         The array of actual add-ons to check.
+ * @param  aExpectedAddons
+ *         The array of expected add-ons to check against.
+ * @param  aProperties
+ *         An array of properties to check.
+ */
+function do_check_addons(aActualAddons, aExpectedAddons, aProperties) {
+  do_check_neq(aActualAddons, null);
+  do_check_eq(aActualAddons.length, aExpectedAddons.length);
+  for (let i = 0; i < aActualAddons.length; i++)
+    do_check_addon(aActualAddons[i], aExpectedAddons[i], aProperties);
+}
+
+/**
+ * Check that the actual add-on is the same as the expected add-on.
+ *
+ * @param  aActualAddon
+ *         The actual add-on to check.
+ * @param  aExpectedAddon
+ *         The expected add-on to check against.
+ * @param  aProperties
+ *         An array of properties to check.
+ */
+function do_check_addon(aActualAddon, aExpectedAddon, aProperties) {
+  do_check_neq(aActualAddon, null);
+
+  aProperties.forEach(function(aProperty) {
+    let actualValue = aActualAddon[aProperty];
+    let expectedValue = aExpectedAddon[aProperty];
+
+    // Check that all undefined expected properties are null on actual add-on
+    if (!(aProperty in aExpectedAddon)) {
+      if (actualValue !== undefined && actualValue !== null) {
+        do_throw("Unexpected defined/non-null property for add-on " +
+                 aExpectedAddon.id + " (addon[" + aProperty + "] = " +
+                 actualValue.toSource() + ")");
+      }
+
+      return;
+    }
+    else if (expectedValue && !actualValue) {
+      do_throw("Missing property for add-on " + aExpectedAddon.id +
+        ": expected addon[" + aProperty + "] = " + expectedValue);
+      return;
+    }
+
+    switch (aProperty) {
+      case "creator":
+        do_check_author(actualValue, expectedValue);
+        break;
+
+      case "developers":
+      case "translators":
+      case "contributors":
+        do_check_eq(actualValue.length, expectedValue.length);
+        for (let i = 0; i < actualValue.length; i++)
+          do_check_author(actualValue[i], expectedValue[i]);
+        break;
+
+      case "screenshots":
+        do_check_eq(actualValue.length, expectedValue.length);
+        for (let i = 0; i < actualValue.length; i++)
+          do_check_screenshot(actualValue[i], expectedValue[i]);
+        break;
+
+      case "sourceURI":
+        do_check_eq(actualValue.spec, expectedValue);
+        break;
+
+      case "updateDate":
+        do_check_eq(actualValue.getTime(), expectedValue.getTime());
+        break;
+
+      case "compatibilityOverrides":
+        do_check_eq(actualValue.length, expectedValue.length);
+        for (let i = 0; i < actualValue.length; i++)
+          do_check_compatibilityoverride(actualValue[i], expectedValue[i]);
+        break;
+
+      case "icons":
+        do_check_icons(actualValue, expectedValue);
+        break;
+
+      default:
+        if (remove_port(actualValue) !== remove_port(expectedValue))
+          do_throw("Failed for " + aProperty + " for add-on " + aExpectedAddon.id +
+                   " (" + actualValue + " === " + expectedValue + ")");
+    }
+  });
+}
+
+/**
+ * Check that the actual author is the same as the expected author.
+ *
+ * @param  aActual
+ *         The actual author to check.
+ * @param  aExpected
+ *         The expected author to check against.
+ */
+function do_check_author(aActual, aExpected) {
+  do_check_eq(aActual.toString(), aExpected.name);
+  do_check_eq(aActual.name, aExpected.name);
+  do_check_eq(aActual.url, aExpected.url);
+}
+
+/**
+ * Check that the actual screenshot is the same as the expected screenshot.
+ *
+ * @param  aActual
+ *         The actual screenshot to check.
+ * @param  aExpected
+ *         The expected screenshot to check against.
+ */
+function do_check_screenshot(aActual, aExpected) {
+  do_check_eq(aActual.toString(), aExpected.url);
+  do_check_eq(aActual.url, aExpected.url);
+  do_check_eq(aActual.width, aExpected.width);
+  do_check_eq(aActual.height, aExpected.height);
+  do_check_eq(aActual.thumbnailURL, aExpected.thumbnailURL);
+  do_check_eq(aActual.thumbnailWidth, aExpected.thumbnailWidth);
+  do_check_eq(aActual.thumbnailHeight, aExpected.thumbnailHeight);
+  do_check_eq(aActual.caption, aExpected.caption);
+}
+
+/**
+ * Check that the actual compatibility override is the same as the expected
+ * compatibility override.
+ *
+ * @param  aAction
+ *         The actual compatibility override to check.
+ * @param  aExpected
+ *         The expected compatibility override to check against.
+ */
+function do_check_compatibilityoverride(aActual, aExpected) {
+  do_check_eq(aActual.type, aExpected.type);
+  do_check_eq(aActual.minVersion, aExpected.minVersion);
+  do_check_eq(aActual.maxVersion, aExpected.maxVersion);
+  do_check_eq(aActual.appID, aExpected.appID);
+  do_check_eq(aActual.appMinVersion, aExpected.appMinVersion);
+  do_check_eq(aActual.appMaxVersion, aExpected.appMaxVersion);
+}
+
+function do_check_icons(aActual, aExpected) {
+  for (var size in aExpected) {
+    do_check_eq(remove_port(aActual[size]), remove_port(aExpected[size]));
+  }
+}
+
+function startupManager(aAppChanged) {
+  promiseStartupManager(aAppChanged);
+}
+
+/**
+ * Restarts the add-on manager as if the host application was restarted.
+ *
+ * @param  aNewVersion
+ *         An optional new version to use for the application. Passing this
+ *         will change nsIXULAppInfo.version and make the startup appear as if
+ *         the application version has changed.
+ */
+function restartManager(aNewVersion) {
+  awaitPromise(promiseRestartManager(aNewVersion));
+}
+
+function shutdownManager() {
+  awaitPromise(promiseShutdownManager());
+}
+
+function isItemMarkedMPIncompatible(aId) {
+  return AddonTestUtils.addonsList.isMultiprocessIncompatible(aId);
+}
+
+function isThemeInAddonsList(aDir, aId) {
+  return AddonTestUtils.addonsList.hasTheme(aDir, aId);
+}
+
+function isExtensionInAddonsList(aDir, aId) {
+  return AddonTestUtils.addonsList.hasExtension(aDir, aId);
+}
+
+function check_startup_changes(aType, aIds) {
+  var ids = aIds.slice(0);
+  ids.sort();
+  var changes = AddonManager.getStartupChanges(aType);
+  changes = changes.filter(aEl => /@tests.mozilla.org$/.test(aEl));
+  changes.sort();
+
+  do_check_eq(JSON.stringify(ids), JSON.stringify(changes));
+}
+
+/**
+ * Writes an install.rdf manifest into a directory using the properties passed
+ * in a JS object. The objects should contain a property for each property to
+ * appear in the RDF. The object may contain an array of objects with id,
+ * minVersion and maxVersion in the targetApplications property to give target
+ * application compatibility.
+ *
+ * @param   aData
+ *          The object holding data about the add-on
+ * @param   aDir
+ *          The directory to add the install.rdf to
+ * @param   aId
+ *          An optional string to override the default installation aId
+ * @param   aExtraFile
+ *          An optional dummy file to create in the directory
+ * @return  An nsIFile for the directory in which the add-on is installed.
+ */
+function writeInstallRDFToDir(aData, aDir, aId = aData.id, aExtraFile = null) {
+  let files = {
+    "install.rdf": AddonTestUtils.createInstallRDF(aData),
+  };
+  if (aExtraFile)
+    files[aExtraFile] = "";
+
+  let dir = aDir.clone();
+  dir.append(aId);
+
+  awaitPromise(AddonTestUtils.promiseWriteFilesToDir(dir.path, files));
+  return dir;
+}
+
+/**
+ * Writes an install.rdf manifest into a packed extension using the properties passed
+ * in a JS object. The objects should contain a property for each property to
+ * appear in the RDF. The object may contain an array of objects with id,
+ * minVersion and maxVersion in the targetApplications property to give target
+ * application compatibility.
+ *
+ * @param   aData
+ *          The object holding data about the add-on
+ * @param   aDir
+ *          The install directory to add the extension to
+ * @param   aId
+ *          An optional string to override the default installation aId
+ * @param   aExtraFile
+ *          An optional dummy file to create in the extension
+ * @return  A file pointing to where the extension was installed
+ */
+function writeInstallRDFToXPI(aData, aDir, aId = aData.id, aExtraFile = null) {
+  let files = {
+    "install.rdf": AddonTestUtils.createInstallRDF(aData),
+  };
+  if (aExtraFile)
+    files[aExtraFile] = "";
+
+  if (!aDir.exists())
+    aDir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+
+  var file = aDir.clone();
+  file.append(`${aId}.xpi`);
+
+  AddonTestUtils.writeFilesToZip(file.path, files);
+
+  return file;
+}
+
+/**
+ * Writes an install.rdf manifest into an extension using the properties passed
+ * in a JS object. The objects should contain a property for each property to
+ * appear in the RDF. The object may contain an array of objects with id,
+ * minVersion and maxVersion in the targetApplications property to give target
+ * application compatibility.
+ *
+ * @param   aData
+ *          The object holding data about the add-on
+ * @param   aDir
+ *          The install directory to add the extension to
+ * @param   aId
+ *          An optional string to override the default installation aId
+ * @param   aExtraFile
+ *          An optional dummy file to create in the extension
+ * @return  A file pointing to where the extension was installed
+ */
+function writeInstallRDFForExtension(aData, aDir, aId, aExtraFile) {
+  if (TEST_UNPACKED) {
+    return writeInstallRDFToDir(aData, aDir, aId, aExtraFile);
+  }
+  return writeInstallRDFToXPI(aData, aDir, aId, aExtraFile);
+}
+
+/**
+ * Writes a manifest.json manifest into an extension using the properties passed
+ * in a JS object.
+ *
+ * @param   aManifest
+ *          The data to write
+ * @param   aDir
+ *          The install directory to add the extension to
+ * @param   aId
+ *          An optional string to override the default installation aId
+ * @return  A file pointing to where the extension was installed
+ */
+function promiseWriteWebManifestForExtension(aData, aDir, aId = aData.applications.gecko.id) {
+  let files = {
+    "manifest.json": JSON.stringify(aData),
+  }
+  return AddonTestUtils.promiseWriteFilesToExtension(aDir.path, aId, files);
+}
+
+/**
+ * Creates an XPI file for some manifest data in the temporary directory and
+ * returns the nsIFile for it. The file will be deleted when the test completes.
+ *
+ * @param   aData
+ *          The object holding data about the add-on
+ * @return  A file pointing to the created XPI file
+ */
+function createTempXPIFile(aData, aExtraFile) {
+  let files = {
+    "install.rdf": aData,
+  };
+  if (typeof aExtraFile == "object")
+    Object.assign(files, aExtraFile);
+  else if (aExtraFile)
+    files[aExtraFile] = "";
+
+  return AddonTestUtils.createTempXPIFile(files);
+}
+
+var gExpectedEvents = {};
+var gExpectedInstalls = [];
+var gNext = null;
+
+function getExpectedEvent(aId) {
+  if (!(aId in gExpectedEvents))
+    do_throw("Wasn't expecting events for " + aId);
+  if (gExpectedEvents[aId].length == 0)
+    do_throw("Too many events for " + aId);
+  let event = gExpectedEvents[aId].shift();
+  if (event instanceof Array)
+    return event;
+  return [event, true];
+}
+
+function getExpectedInstall(aAddon) {
+  if (gExpectedInstalls instanceof Array)
+    return gExpectedInstalls.shift();
+  if (!aAddon || !aAddon.id)
+    return gExpectedInstalls["NO_ID"].shift();
+  let id = aAddon.id;
+  if (!(id in gExpectedInstalls) || !(gExpectedInstalls[id] instanceof Array))
+    do_throw("Wasn't expecting events for " + id);
+  if (gExpectedInstalls[id].length == 0)
+    do_throw("Too many events for " + id);
+  return gExpectedInstalls[id].shift();
+}
+
+const AddonListener = {
+  onPropertyChanged: function(aAddon, aProperties) {
+    do_print(`Got onPropertyChanged event for ${aAddon.id}`);
+    let [event, properties] = getExpectedEvent(aAddon.id);
+    do_check_eq("onPropertyChanged", event);
+    do_check_eq(aProperties.length, properties.length);
+    properties.forEach(function(aProperty) {
+      // Only test that the expected properties are listed, having additional
+      // properties listed is not necessary a problem
+      if (aProperties.indexOf(aProperty) == -1)
+        do_throw("Did not see property change for " + aProperty);
+    });
+    return check_test_completed(arguments);
+  },
+
+  onEnabling: function(aAddon, aRequiresRestart) {
+    do_print(`Got onEnabling event for ${aAddon.id}`);
+    let [event, expectedRestart] = getExpectedEvent(aAddon.id);
+    do_check_eq("onEnabling", event);
+    do_check_eq(aRequiresRestart, expectedRestart);
+    if (expectedRestart)
+      do_check_true(hasFlag(aAddon.pendingOperations, AddonManager.PENDING_ENABLE));
+    do_check_false(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_ENABLE));
+    return check_test_completed(arguments);
+  },
+
+  onEnabled: function(aAddon) {
+    do_print(`Got onEnabled event for ${aAddon.id}`);
+    let [event, expectedRestart] = getExpectedEvent(aAddon.id);
+    do_check_eq("onEnabled", event);
+    do_check_false(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_ENABLE));
+    return check_test_completed(arguments);
+  },
+
+  onDisabling: function(aAddon, aRequiresRestart) {
+    do_print(`Got onDisabling event for ${aAddon.id}`);
+    let [event, expectedRestart] = getExpectedEvent(aAddon.id);
+    do_check_eq("onDisabling", event);
+    do_check_eq(aRequiresRestart, expectedRestart);
+    if (expectedRestart)
+      do_check_true(hasFlag(aAddon.pendingOperations, AddonManager.PENDING_DISABLE));
+    do_check_false(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_DISABLE));
+    return check_test_completed(arguments);
+  },
+
+  onDisabled: function(aAddon) {
+    do_print(`Got onDisabled event for ${aAddon.id}`);
+    let [event, expectedRestart] = getExpectedEvent(aAddon.id);
+    do_check_eq("onDisabled", event);
+    do_check_false(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_DISABLE));
+    return check_test_completed(arguments);
+  },
+
+  onInstalling: function(aAddon, aRequiresRestart) {
+    do_print(`Got onInstalling event for ${aAddon.id}`);
+    let [event, expectedRestart] = getExpectedEvent(aAddon.id);
+    do_check_eq("onInstalling", event);
+    do_check_eq(aRequiresRestart, expectedRestart);
+    if (expectedRestart)
+      do_check_true(hasFlag(aAddon.pendingOperations, AddonManager.PENDING_INSTALL));
+    return check_test_completed(arguments);
+  },
+
+  onInstalled: function(aAddon) {
+    do_print(`Got onInstalled event for ${aAddon.id}`);
+    let [event, expectedRestart] = getExpectedEvent(aAddon.id);
+    do_check_eq("onInstalled", event);
+    return check_test_completed(arguments);
+  },
+
+  onUninstalling: function(aAddon, aRequiresRestart) {
+    do_print(`Got onUninstalling event for ${aAddon.id}`);
+    let [event, expectedRestart] = getExpectedEvent(aAddon.id);
+    do_check_eq("onUninstalling", event);
+    do_check_eq(aRequiresRestart, expectedRestart);
+    if (expectedRestart)
+      do_check_true(hasFlag(aAddon.pendingOperations, AddonManager.PENDING_UNINSTALL));
+    return check_test_completed(arguments);
+  },
+
+  onUninstalled: function(aAddon) {
+    do_print(`Got onUninstalled event for ${aAddon.id}`);
+    let [event, expectedRestart] = getExpectedEvent(aAddon.id);
+    do_check_eq("onUninstalled", event);
+    return check_test_completed(arguments);
+  },
+
+  onOperationCancelled: function(aAddon) {
+    do_print(`Got onOperationCancelled event for ${aAddon.id}`);
+    let [event, expectedRestart] = getExpectedEvent(aAddon.id);
+    do_check_eq("onOperationCancelled", event);
+    return check_test_completed(arguments);
+  }
+};
+
+const InstallListener = {
+  onNewInstall: function(install) {
+    if (install.state != AddonManager.STATE_DOWNLOADED &&
+        install.state != AddonManager.STATE_DOWNLOAD_FAILED &&
+        install.state != AddonManager.STATE_AVAILABLE)
+      do_throw("Bad install state " + install.state);
+    if (install.state != AddonManager.STATE_DOWNLOAD_FAILED)
+      do_check_eq(install.error, 0);
+    else
+      do_check_neq(install.error, 0);
+    do_check_eq("onNewInstall", getExpectedInstall());
+    return check_test_completed(arguments);
+  },
+
+  onDownloadStarted: function(install) {
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADING);
+    do_check_eq(install.error, 0);
+    do_check_eq("onDownloadStarted", getExpectedInstall());
+    return check_test_completed(arguments);
+  },
+
+  onDownloadEnded: function(install) {
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_eq(install.error, 0);
+    do_check_eq("onDownloadEnded", getExpectedInstall());
+    return check_test_completed(arguments);
+  },
+
+  onDownloadFailed: function(install) {
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq("onDownloadFailed", getExpectedInstall());
+    return check_test_completed(arguments);
+  },
+
+  onDownloadCancelled: function(install) {
+    do_check_eq(install.state, AddonManager.STATE_CANCELLED);
+    do_check_eq(install.error, 0);
+    do_check_eq("onDownloadCancelled", getExpectedInstall());
+    return check_test_completed(arguments);
+  },
+
+  onInstallStarted: function(install) {
+    do_check_eq(install.state, AddonManager.STATE_INSTALLING);
+    do_check_eq(install.error, 0);
+    do_check_eq("onInstallStarted", getExpectedInstall(install.addon));
+    return check_test_completed(arguments);
+  },
+
+  onInstallEnded: function(install, newAddon) {
+    do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+    do_check_eq(install.error, 0);
+    do_check_eq("onInstallEnded", getExpectedInstall(install.addon));
+    return check_test_completed(arguments);
+  },
+
+  onInstallFailed: function(install) {
+    do_check_eq(install.state, AddonManager.STATE_INSTALL_FAILED);
+    do_check_eq("onInstallFailed", getExpectedInstall(install.addon));
+    return check_test_completed(arguments);
+  },
+
+  onInstallCancelled: function(install) {
+    // If the install was cancelled by a listener returning false from
+    // onInstallStarted, then the state will revert to STATE_DOWNLOADED.
+    let possibleStates = [AddonManager.STATE_CANCELLED,
+                          AddonManager.STATE_DOWNLOADED];
+    do_check_true(possibleStates.indexOf(install.state) != -1);
+    do_check_eq(install.error, 0);
+    do_check_eq("onInstallCancelled", getExpectedInstall(install.addon));
+    return check_test_completed(arguments);
+  },
+
+  onExternalInstall: function(aAddon, existingAddon, aRequiresRestart) {
+    do_check_eq("onExternalInstall", getExpectedInstall(aAddon));
+    do_check_false(aRequiresRestart);
+    return check_test_completed(arguments);
+  }
+};
+
+function hasFlag(aBits, aFlag) {
+  return (aBits & aFlag) != 0;
+}
+
+// Just a wrapper around setting the expected events
+function prepare_test(aExpectedEvents, aExpectedInstalls, aNext) {
+  AddonManager.addAddonListener(AddonListener);
+  AddonManager.addInstallListener(InstallListener);
+
+  gExpectedInstalls = aExpectedInstalls;
+  gExpectedEvents = aExpectedEvents;
+  gNext = aNext;
+}
+
+// Checks if all expected events have been seen and if so calls the callback
+function check_test_completed(aArgs) {
+  if (!gNext)
+    return undefined;
+
+  if (gExpectedInstalls instanceof Array &&
+      gExpectedInstalls.length > 0)
+    return undefined;
+
+  for (let id in gExpectedInstalls) {
+    let installList = gExpectedInstalls[id];
+    if (installList.length > 0)
+      return undefined;
+  }
+
+  for (let id in gExpectedEvents) {
+    if (gExpectedEvents[id].length > 0)
+      return undefined;
+  }
+
+  return gNext.apply(null, aArgs);
+}
+
+// Verifies that all the expected events for all add-ons were seen
+function ensure_test_completed() {
+  for (let i in gExpectedEvents) {
+    if (gExpectedEvents[i].length > 0)
+      do_throw("Didn't see all the expected events for " + i);
+  }
+  gExpectedEvents = {};
+  if (gExpectedInstalls)
+    do_check_eq(gExpectedInstalls.length, 0);
+}
+
+/**
+ * A helper method to install an array of AddonInstall to completion and then
+ * call a provided callback.
+ *
+ * @param   aInstalls
+ *          The array of AddonInstalls to install
+ * @param   aCallback
+ *          The callback to call when all installs have finished
+ */
+function completeAllInstalls(aInstalls, aCallback) {
+  promiseCompleteAllInstalls(aInstalls).then(aCallback);
+}
+
+/**
+ * A helper method to install an array of files and call a callback after the
+ * installs are completed.
+ *
+ * @param   aFiles
+ *          The array of files to install
+ * @param   aCallback
+ *          The callback to call when all installs have finished
+ * @param   aIgnoreIncompatible
+ *          Optional parameter to ignore add-ons that are incompatible in
+ *          aome way with the application
+ */
+function installAllFiles(aFiles, aCallback, aIgnoreIncompatible) {
+  promiseInstallAllFiles(aFiles, aIgnoreIncompatible).then(aCallback);
+}
+
+const EXTENSIONS_DB = "extensions.json";
+var gExtensionsJSON = gProfD.clone();
+gExtensionsJSON.append(EXTENSIONS_DB);
+
+
+// By default use strict compatibility
+Services.prefs.setBoolPref("extensions.strictCompatibility", true);
+
+// By default, set min compatible versions to 0
+Services.prefs.setCharPref(PREF_EM_MIN_COMPAT_APP_VERSION, "0");
+Services.prefs.setCharPref(PREF_EM_MIN_COMPAT_PLATFORM_VERSION, "0");
+
+// Ensure signature checks are enabled by default
+Services.prefs.setBoolPref(PREF_XPI_SIGNATURES_REQUIRED, true);
+
+
+// Copies blocklistFile (an nsIFile) to gProfD/blocklist.xml.
+function copyBlocklistToProfile(blocklistFile) {
+  var dest = gProfD.clone();
+  dest.append("blocklist.xml");
+  if (dest.exists())
+    dest.remove(false);
+  blocklistFile.copyTo(gProfD, "blocklist.xml");
+  dest.lastModifiedTime = Date.now();
+}
+
+// Throw a failure and attempt to abandon the test if it looks like it is going
+// to timeout
+function timeout() {
+  timer = null;
+  do_throw("Test ran longer than " + TIMEOUT_MS + "ms");
+
+  // Attempt to bail out of the test
+  do_test_finished();
+}
+
+var timer = AM_Cc["@mozilla.org/timer;1"].createInstance(AM_Ci.nsITimer);
+timer.init(timeout, TIMEOUT_MS, AM_Ci.nsITimer.TYPE_ONE_SHOT);
+
+// Make sure that a given path does not exist
+function pathShouldntExist(file) {
+  if (file.exists()) {
+    do_throw(`Test cleanup: path ${file.path} exists when it should not`);
+  }
+}
+
+do_register_cleanup(function addon_cleanup() {
+  if (timer)
+    timer.cancel();
+});
+
+/**
+ * Creates a new HttpServer for testing, and begins listening on the
+ * specified port. Automatically shuts down the server when the test
+ * unit ends.
+ *
+ * @param port
+ *        The port to listen on. If omitted, listen on a random
+ *        port. The latter is the preferred behavior.
+ *
+ * @return HttpServer
+ */
+function createHttpServer(port = -1) {
+  let server = new HttpServer();
+  server.start(port);
+
+  do_register_cleanup(() => {
+    return new Promise(resolve => {
+      server.stop(resolve);
+    });
+  });
+
+  return server;
+}
+
+/**
+ * Handler function that responds with the interpolated
+ * static file associated to the URL specified by request.path.
+ * This replaces the %PORT% entries in the file with the actual
+ * value of the running server's port (stored in gPort).
+ */
+function interpolateAndServeFile(request, response) {
+  try {
+    let file = gUrlToFileMap[request.path];
+    var data = "";
+    var fstream = Components.classes["@mozilla.org/network/file-input-stream;1"].
+    createInstance(Components.interfaces.nsIFileInputStream);
+    var cstream = Components.classes["@mozilla.org/intl/converter-input-stream;1"].
+    createInstance(Components.interfaces.nsIConverterInputStream);
+    fstream.init(file, -1, 0, 0);
+    cstream.init(fstream, "UTF-8", 0, 0);
+
+    let str = {};
+    let read = 0;
+    do {
+      // read as much as we can and put it in str.value
+      read = cstream.readString(0xffffffff, str);
+      data += str.value;
+    } while (read != 0);
+    data = data.replace(/%PORT%/g, gPort);
+
+    response.write(data);
+  } catch (e) {
+    do_throw(`Exception while serving interpolated file: ${e}\n${e.stack}`);
+  } finally {
+    cstream.close(); // this closes fstream as well
+  }
+}
+
+/**
+ * Sets up a path handler for the given URL and saves the
+ * corresponding file in the global url -> file map.
+ *
+ * @param  url
+ *         the actual URL
+ * @param  file
+ *         nsILocalFile representing a static file
+ */
+function mapUrlToFile(url, file, server) {
+  server.registerPathHandler(url, interpolateAndServeFile);
+  gUrlToFileMap[url] = file;
+}
+
+function mapFile(path, server) {
+  mapUrlToFile(path, do_get_file(path), server);
+}
+
+/**
+ * Take out the port number in an URL
+ *
+ * @param url
+ *        String that represents an URL with a port number in it
+ */
+function remove_port(url) {
+  if (typeof url === "string")
+    return url.replace(/:\d+/, "");
+  return url;
+}
+// Wrap a function (typically a callback) to catch and report exceptions
+function do_exception_wrap(func) {
+  return function() {
+    try {
+      func.apply(null, arguments);
+    }
+    catch (e) {
+      do_report_unexpected_exception(e);
+    }
+  };
+}
+
+/**
+ * Change the schema version of the JSON extensions database
+ */
+function changeXPIDBVersion(aNewVersion, aMutator = undefined) {
+  let jData = loadJSON(gExtensionsJSON);
+  jData.schemaVersion = aNewVersion;
+  if (aMutator)
+    aMutator(jData);
+  saveJSON(jData, gExtensionsJSON);
+}
+
+/**
+ * Load a file into a string
+ */
+function loadFile(aFile) {
+  let data = "";
+  let fstream = Components.classes["@mozilla.org/network/file-input-stream;1"].
+          createInstance(Components.interfaces.nsIFileInputStream);
+  let cstream = Components.classes["@mozilla.org/intl/converter-input-stream;1"].
+          createInstance(Components.interfaces.nsIConverterInputStream);
+  fstream.init(aFile, -1, 0, 0);
+  cstream.init(fstream, "UTF-8", 0, 0);
+  let str = {};
+  let read = 0;
+  do {
+    read = cstream.readString(0xffffffff, str); // read as much as we can and put it in str.value
+    data += str.value;
+  } while (read != 0);
+  cstream.close();
+  return data;
+}
+
+/**
+ * Raw load of a JSON file
+ */
+function loadJSON(aFile) {
+  let data = loadFile(aFile);
+  do_print("Loaded JSON file " + aFile.path);
+  return (JSON.parse(data));
+}
+
+/**
+ * Raw save of a JSON blob to file
+ */
+function saveJSON(aData, aFile) {
+  do_print("Starting to save JSON file " + aFile.path);
+  let stream = FileUtils.openSafeFileOutputStream(aFile);
+  let converter = AM_Cc["@mozilla.org/intl/converter-output-stream;1"].
+    createInstance(AM_Ci.nsIConverterOutputStream);
+  converter.init(stream, "UTF-8", 0, 0x0000);
+  // XXX pretty print the JSON while debugging
+  converter.writeString(JSON.stringify(aData, null, 2));
+  converter.flush();
+  // nsConverterOutputStream doesn't finish() safe output streams on close()
+  FileUtils.closeSafeFileOutputStream(stream);
+  converter.close();
+  do_print("Done saving JSON file " + aFile.path);
+}
+
+/**
+ * Create a callback function that calls do_execute_soon on an actual callback and arguments
+ */
+function callback_soon(aFunction) {
+  return function(...args) {
+    do_execute_soon(function() {
+      aFunction.apply(null, args);
+    }, aFunction.name ? "delayed callback " + aFunction.name : "delayed callback");
+  }
+}
+
+function writeProxyFileToDir(aDir, aAddon, aId) {
+  awaitPromise(promiseWriteProxyFileToDir(aDir, aAddon, aId));
+
+  let file = aDir.clone();
+  file.append(aId);
+  return file
+}
+
+function* serveSystemUpdate(xml, perform_update, testserver) {
+  testserver.registerPathHandler("/data/update.xml", (request, response) => {
+    response.write(xml);
+  });
+
+  try {
+    yield perform_update();
+  }
+  finally {
+    testserver.registerPathHandler("/data/update.xml", null);
+  }
+}
+
+// Runs an update check making it use the passed in xml string. Uses the direct
+// call to the update function so we get rejections on failure.
+function* installSystemAddons(xml, testserver) {
+  do_print("Triggering system add-on update check.");
+
+  yield serveSystemUpdate(xml, function*() {
+    let { XPIProvider } = Components.utils.import("resource://gre/modules/addons/XPIProvider.jsm", {});
+    yield XPIProvider.updateSystemAddons();
+  }, testserver);
+}
+
+// Runs a full add-on update check which will in some cases do a system add-on
+// update check. Always succeeds.
+function* updateAllSystemAddons(xml, testserver) {
+  do_print("Triggering full add-on update check.");
+
+  yield serveSystemUpdate(xml, function() {
+    return new Promise(resolve => {
+      Services.obs.addObserver(function() {
+        Services.obs.removeObserver(arguments.callee, "addons-background-update-complete");
+
+        resolve();
+      }, "addons-background-update-complete", false);
+
+      // Trigger the background update timer handler
+      gInternalManager.notify(null);
+    });
+  }, testserver);
+}
+
+// Builds an update.xml file for an update check based on the data passed.
+function* buildSystemAddonUpdates(addons, root) {
+  let xml = `<?xml version="1.0" encoding="UTF-8"?>\n\n<updates>\n`;
+  if (addons) {
+    xml += `  <addons>\n`;
+    for (let addon of addons) {
+      xml += `    <addon id="${addon.id}" URL="${root + addon.path}" version="${addon.version}"`;
+      if (addon.size)
+        xml += ` size="${addon.size}"`;
+      if (addon.hashFunction)
+        xml += ` hashFunction="${addon.hashFunction}"`;
+      if (addon.hashValue)
+        xml += ` hashValue="${addon.hashValue}"`;
+      xml += `/>\n`;
+    }
+    xml += `  </addons>\n`;
+  }
+  xml += `</updates>\n`;
+
+  return xml;
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/head_unpack.js b/toolkit/mozapps/webextensions/test/xpcshell/head_unpack.js
new file mode 100644
index 000000000..6310bbc60
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/head_unpack.js
@@ -0,0 +1,3 @@
+/* globals Services, TEST_UNPACKED: true*/
+Services.prefs.setBoolPref("extensions.alwaysUnpack", true);
+TEST_UNPACKED = true;
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_AddonRepository.js b/toolkit/mozapps/webextensions/test/xpcshell/test_AddonRepository.js
new file mode 100644
index 000000000..dd0dc1981
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_AddonRepository.js
@@ -0,0 +1,625 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests AddonRepository.jsm
+
+Components.utils.import("resource://gre/modules/addons/AddonRepository.jsm");
+
+Components.utils.import("resource://testing-common/httpd.js");
+var gServer = new HttpServer();
+gServer.start(-1);
+
+const PREF_GETADDONS_BROWSEADDONS        = "extensions.getAddons.browseAddons";
+const PREF_GETADDONS_BROWSERECOMMENDED   = "extensions.getAddons.recommended.browseURL";
+const PREF_GETADDONS_GETRECOMMENDED      = "extensions.getAddons.recommended.url";
+const PREF_GETADDONS_BROWSESEARCHRESULTS = "extensions.getAddons.search.browseURL";
+const PREF_GETADDONS_GETSEARCHRESULTS    = "extensions.getAddons.search.url";
+
+const PORT          = gServer.identity.primaryPort;
+const BASE_URL      = "http://localhost:" + PORT;
+const DEFAULT_URL   = "about:blank";
+
+gPort = PORT;
+
+// Path to source URI of installed add-on
+const INSTALL_URL1  = "/addons/test_AddonRepository_1.xpi";
+// Path to source URI of installing add-on
+const INSTALL_URL2  = "/addons/test_AddonRepository_2.xpi";
+// Path to source URI of non-active add-on (state = STATE_AVAILABLE)
+const INSTALL_URL3  = "/addons/test_AddonRepository_3.xpi";
+
+// Properties of an individual add-on that should be checked
+// Note: name is checked separately
+var ADDON_PROPERTIES = ["id", "type", "version", "creator", "developers",
+                        "description", "fullDescription", "developerComments",
+                        "eula", "iconURL", "icons", "screenshots", "homepageURL",
+                        "supportURL", "contributionURL", "contributionAmount",
+                        "averageRating", "reviewCount", "reviewURL",
+                        "totalDownloads", "weeklyDownloads", "dailyUsers",
+                        "sourceURI", "repositoryStatus", "size", "updateDate",
+                        "purchaseURL", "purchaseAmount", "purchaseDisplayAmount",
+                        "compatibilityOverrides"];
+
+// Results of getAddonsByIDs
+var GET_RESULTS = [{
+  id:                     "test1@tests.mozilla.org",
+  type:                   "extension",
+  version:                "1.1",
+  creator:                {
+                            name: "Test Creator 1",
+                            url:  BASE_URL + "/creator1.html"
+                          },
+  developers:             [{
+                            name: "Test Developer 1",
+                            url:  BASE_URL + "/developer1.html"
+                          }],
+  description:            "Test Summary 1",
+  fullDescription:        "Test Description 1",
+  developerComments:      "Test Developer Comments 1",
+  eula:                   "Test EULA 1",
+  iconURL:                BASE_URL + "/icon1.png",
+  icons:                  { "32": BASE_URL + "/icon1.png" },
+  screenshots:            [{
+                            url:             BASE_URL + "/full1-1.png",
+                            width:           400,
+                            height:          300,
+                            thumbnailURL:    BASE_URL + "/thumbnail1-1.png",
+                            thumbnailWidth:  200,
+                            thumbnailHeight: 150,
+                            caption:         "Caption 1 - 1"
+                          }, {
+                            url:          BASE_URL + "/full2-1.png",
+                            thumbnailURL: BASE_URL + "/thumbnail2-1.png",
+                            caption:      "Caption 2 - 1"
+                          }],
+  homepageURL:            BASE_URL + "/learnmore1.html",
+  learnmoreURL:           BASE_URL + "/learnmore1.html",
+  supportURL:             BASE_URL + "/support1.html",
+  contributionURL:        BASE_URL + "/meetDevelopers1.html",
+  contributionAmount:     "$11.11",
+  averageRating:          4,
+  reviewCount:            1111,
+  reviewURL:              BASE_URL + "/review1.html",
+  totalDownloads:         2222,
+  weeklyDownloads:        3333,
+  dailyUsers:             4444,
+  sourceURI:              BASE_URL + INSTALL_URL2,
+  repositoryStatus:       8,
+  size:                   5555,
+  updateDate:             new Date(1265033045000),
+  compatibilityOverrides: [{
+                            type: "incompatible",
+                            minVersion: 0.1,
+                            maxVersion: 0.2,
+                            appID: "xpcshell@tests.mozilla.org",
+                            appMinVersion: 3.0,
+                            appMaxVersion: 4.0
+                          }, {
+                            type: "incompatible",
+                            minVersion: 0.2,
+                            maxVersion: 0.3,
+                            appID: "xpcshell@tests.mozilla.org",
+                            appMinVersion: 5.0,
+                            appMaxVersion: 6.0
+                          }]
+}, {
+  id:                     "test_AddonRepository_1@tests.mozilla.org",
+  type:                   "theme",
+  version:                "1.4",
+  repositoryStatus:       9999,
+  icons:                  {}
+}];
+
+// Results of retrieveRecommendedAddons and searchAddons
+var SEARCH_RESULTS = [{
+  id:                     "test1@tests.mozilla.org",
+  type:                   "extension",
+  version:                "1.1",
+  creator:                {
+                            name: "Test Creator 1",
+                            url:  BASE_URL + "/creator1.html"
+                          },
+  repositoryStatus:       8,
+  sourceURI:              BASE_URL + "/test1.xpi",
+  icons:                  {}
+}, {
+  id:                     "test2@tests.mozilla.org",
+  type:                   "extension",
+  version:                "1.2",
+  creator:                {
+                            name: "Test Creator 2",
+                            url:  BASE_URL + "/creator2.html"
+                          },
+  developers:             [{
+                            name: "Test Developer 2",
+                            url:  BASE_URL + "/developer2.html"
+                          }],
+  description:            "Test Summary 2\n\nparagraph",
+  fullDescription:        "Test Description 2\nnewline",
+  developerComments:      "Test Developer\nComments 2",
+  eula:                   "Test EULA 2",
+  iconURL:                BASE_URL + "/icon2-32.png",
+  icons:                  {
+                            "32": BASE_URL + "/icon2-32.png",
+                            "48": BASE_URL + "/icon2-48.png",
+                            "64": BASE_URL + "/icon2-64.png"
+                          },
+  screenshots:            [{
+                            url:          BASE_URL + "/full1-2.png",
+                            thumbnailURL: BASE_URL + "/thumbnail1-2.png"
+                          }, {
+                            url:          BASE_URL + "/full2-2.png",
+                            thumbnailURL: BASE_URL + "/thumbnail2-2.png",
+                            caption:      "Caption 2"
+                          }],
+  homepageURL:            BASE_URL + "/learnmore2.html",
+  supportURL:             BASE_URL + "/support2.html",
+  learnmoreURL:           BASE_URL + "/learnmore2.html",
+  contributionURL:        BASE_URL + "/meetDevelopers2.html",
+  contributionAmount:     null,
+  repositoryStatus:       4,
+  sourceURI:              BASE_URL + "/test2.xpi"
+}, {
+  id:                     "test3@tests.mozilla.org",
+  type:                   "theme",
+  version:                "1.3",
+  creator:                {
+                            name: "Test Creator 3",
+                            url:  BASE_URL + "/creator3.html"
+                          },
+  developers:             [{
+                            name: "First Test Developer 3",
+                            url:  BASE_URL + "/developer1-3.html"
+                          }, {
+                            name: "Second Test Developer 3",
+                            url:  BASE_URL + "/developer2-3.html"
+                          }],
+  description:            "Test Summary 3",
+  fullDescription:        "Test Description 3\n\n    List item 1\n    List item 2",
+  developerComments:      "Test Developer Comments 3",
+  eula:                   "Test EULA 3",
+  iconURL:                BASE_URL + "/icon3.png",
+  icons:                  { "32": BASE_URL + "/icon3.png" },
+  screenshots:            [{
+                            url:          BASE_URL + "/full1-3.png",
+                            thumbnailURL: BASE_URL + "/thumbnail1-3.png",
+                            caption:      "Caption 1 - 3"
+                          }, {
+                            url:          BASE_URL + "/full2-3.png",
+                            caption:      "Caption 2 - 3"
+                          }, {
+                            url:          BASE_URL + "/full3-3.png",
+                            thumbnailURL: BASE_URL + "/thumbnail3-3.png",
+                            caption:      "Caption 3 - 3"
+                          }],
+  homepageURL:            BASE_URL + "/homepage3.html",
+  supportURL:             BASE_URL + "/support3.html",
+  learnmoreURL:           BASE_URL + "/learnmore3.html",
+  contributionURL:        BASE_URL + "/meetDevelopers3.html",
+  contributionAmount:     "$11.11",
+  averageRating:          2,
+  reviewCount:            1111,
+  reviewURL:              BASE_URL + "/review3.html",
+  totalDownloads:         2222,
+  weeklyDownloads:        3333,
+  dailyUsers:             4444,
+  sourceURI:              BASE_URL + "/test3.xpi",
+  repositoryStatus:       8,
+  size:                   5555,
+  updateDate:             new Date(1265033045000),
+
+}, {
+  id:                     "purchase1@tests.mozilla.org",
+  type:                   "extension",
+  version:                "2.0",
+  creator:                {
+                            name: "Test Creator - Last Passing",
+                            url:  BASE_URL + "/creatorLastPassing.html"
+                          },
+  averageRating:          5,
+  repositoryStatus:       4,
+  purchaseURL:            "http://localhost:" + PORT + "/purchaseURL1",
+  purchaseAmount:         5,
+  purchaseDisplayAmount:  "$5",
+  icons:                  {}
+}, {
+  id:                     "purchase2@tests.mozilla.org",
+  type:                   "extension",
+  version:                "2.0",
+  creator:                {
+                            name: "Test Creator - Last Passing",
+                            url:  BASE_URL + "/creatorLastPassing.html"
+                          },
+  averageRating:          5,
+  repositoryStatus:       4,
+  purchaseURL:            "http://localhost:" + PORT + "/purchaseURL2",
+  purchaseAmount:         10,
+  purchaseDisplayAmount:  "$10",
+  icons:                  {}
+}, {
+  id:                     "test-lastPassing@tests.mozilla.org",
+  type:                   "extension",
+  version:                "2.0",
+  creator:                {
+                            name: "Test Creator - Last Passing",
+                            url:  BASE_URL + "/creatorLastPassing.html"
+                          },
+  averageRating:          5,
+  repositoryStatus:       4,
+  sourceURI:              BASE_URL + "/addons/test_AddonRepository_3.xpi",
+  icons:                  {}
+}];
+
+const TOTAL_RESULTS = 1111;
+const MAX_RESULTS = SEARCH_RESULTS.length;
+
+// Used to differentiate between testing that a search success
+// or a search failure for retrieveRecommendedAddons and searchAddons
+const FAILED_MAX_RESULTS  = 9999;
+
+// Values for testing AddonRepository.getAddonsByIDs()
+var GET_TEST = {
+  preference:       PREF_GETADDONS_BYIDS,
+  preferenceValue:  BASE_URL + "/%OS%/%VERSION%/%API_VERSION%/" +
+                    "%API_VERSION%/%IDS%",
+  failedIDs:      ["test1@tests.mozilla.org"],
+  failedURL:        "/XPCShell/1/1.5/1.5/test1%40tests.mozilla.org",
+  successfulIDs:  ["test1@tests.mozilla.org",
+                     "{00000000-1111-2222-3333-444444444444}",
+                     "test_AddonRepository_1@tests.mozilla.org"],
+  successfulURL:    "/XPCShell/1/1.5/1.5/test1%40tests.mozilla.org," +
+                    "%7B00000000-1111-2222-3333-444444444444%7D," +
+                    "test_AddonRepository_1%40tests.mozilla.org"
+};
+
+// Values for testing AddonRepository.retrieveRecommendedAddons()
+var RECOMMENDED_TEST = {
+  preference:       PREF_GETADDONS_GETRECOMMENDED,
+  preferenceValue:  BASE_URL + "/%OS%/%VERSION%/%API_VERSION%/" +
+                    "%API_VERSION%/%MAX_RESULTS%",
+  failedURL:        "/XPCShell/1/1.5/1.5/" + (2 * FAILED_MAX_RESULTS),
+  successfulURL:    "/XPCShell/1/1.5/1.5/" + (2 * MAX_RESULTS)
+};
+
+// Values for testing AddonRepository.searchAddons()
+var SEARCH_TEST = {
+  searchTerms:      "odd=search:with&weird\"characters",
+  preference:       PREF_GETADDONS_GETSEARCHRESULTS,
+  preferenceValue:  BASE_URL + "/%OS%/%VERSION%/%API_VERSION%/" +
+                    "%API_VERSION%/%MAX_RESULTS%/%TERMS%",
+  failedURL:        "/XPCShell/1/1.5/1.5/" + (2 * FAILED_MAX_RESULTS) +
+                    "/odd%3Dsearch%3Awith%26weird%22characters",
+  successfulURL:    "/XPCShell/1/1.5/1.5/" + (2 * MAX_RESULTS) +
+                    "/odd%3Dsearch%3Awith%26weird%22characters"
+};
+
+// Test that actual results and expected results are equal
+function check_results(aActualAddons, aExpectedAddons, aAddonCount, aInstallNull) {
+  do_check_false(AddonRepository.isSearching);
+
+  do_check_eq(aActualAddons.length, aAddonCount);
+  do_check_addons(aActualAddons, aExpectedAddons, ADDON_PROPERTIES);
+
+  // Additional tests
+  aActualAddons.forEach(function check_each_addon(aActualAddon) {
+    // Separately check name so better messages are output when test fails
+    if (aActualAddon.name == "FAIL")
+      do_throw(aActualAddon.id + " - " + aActualAddon.description);
+    if (aActualAddon.name != "PASS")
+      do_throw(aActualAddon.id + " - " + "invalid add-on name " + aActualAddon.name);
+
+    do_check_eq(aActualAddon.install == null, !!aInstallNull || !aActualAddon.sourceURI);
+
+    // Check that sourceURI property consistent within actual addon
+    if (aActualAddon.install)
+      do_check_eq(aActualAddon.install.sourceURI.spec, aActualAddon.sourceURI.spec);
+  });
+}
+
+// Complete a search, also testing cancelSearch() and isSearching
+function complete_search(aSearch, aSearchCallback) {
+  var failCallback = {
+    searchSucceeded: function(addons, length, total) {
+      do_throw("failCallback.searchSucceeded should not be called");
+      end_test();
+    },
+
+    searchFailed: function() {
+      do_throw("failCallback.searchFailed should not be called");
+      end_test();
+    }
+  };
+
+  var callbackCalled = false;
+  var testCallback = {
+    searchSucceeded: function(addons, length, total) {
+      do_throw("testCallback.searchSucceeded should not be called");
+      end_test();
+    },
+
+    searchFailed: function() {
+      callbackCalled = true;
+    }
+  };
+
+  // Should fail because cancelled it immediately
+  aSearch(failCallback);
+  do_check_true(AddonRepository.isSearching);
+  AddonRepository.cancelSearch();
+  do_check_false(AddonRepository.isSearching);
+
+  aSearch(aSearchCallback);
+  do_check_true(AddonRepository.isSearching);
+
+  // searchFailed should be called immediately because already searching
+  aSearch(testCallback);
+  do_check_true(callbackCalled);
+  do_check_true(AddonRepository.isSearching);
+}
+
+
+function run_test() {
+  // Setup for test
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  startupManager();
+
+  // Install an add-on so can check that it isn't returned in the results
+  installAllFiles([do_get_addon("test_AddonRepository_1")], function addon_1_install_callback() {
+    restartManager();
+
+    // Register other add-on XPI files
+    gServer.registerFile(INSTALL_URL2,
+                        do_get_addon("test_AddonRepository_2"));
+    gServer.registerFile(INSTALL_URL3,
+                        do_get_addon("test_AddonRepository_3"));
+
+    // Register files used to test search failure
+    mapUrlToFile(GET_TEST.failedURL,
+                 do_get_file("data/test_AddonRepository_failed.xml"),
+                 gServer);
+    mapUrlToFile(RECOMMENDED_TEST.failedURL,
+                 do_get_file("data/test_AddonRepository_failed.xml"),
+                 gServer);
+    mapUrlToFile(SEARCH_TEST.failedURL,
+                 do_get_file("data/test_AddonRepository_failed.xml"),
+                 gServer);
+
+    // Register files used to test search success
+    mapUrlToFile(GET_TEST.successfulURL,
+                 do_get_file("data/test_AddonRepository_getAddonsByIDs.xml"),
+                 gServer);
+    mapUrlToFile(RECOMMENDED_TEST.successfulURL,
+                 do_get_file("data/test_AddonRepository.xml"),
+                 gServer);
+    mapUrlToFile(SEARCH_TEST.successfulURL,
+                 do_get_file("data/test_AddonRepository.xml"),
+                 gServer);
+
+    // Create an active AddonInstall so can check that it isn't returned in the results
+    AddonManager.getInstallForURL(BASE_URL + INSTALL_URL2, function addon_2_get(aInstall) {
+      try {
+        aInstall.install();
+      }
+      catch (e) {
+        do_print("Failed to install add-on " + aInstall.sourceURI.spec);
+        do_report_unexpected_exception(e);
+      }
+
+      // Create a non-active AddonInstall so can check that it is returned in the results
+      AddonManager.getInstallForURL(BASE_URL + INSTALL_URL3,
+                                    run_test_1, "application/x-xpinstall");
+    }, "application/x-xpinstall");
+  });
+}
+
+function end_test() {
+  let testDir = gProfD.clone();
+  testDir.append("extensions");
+  testDir.append("staged");
+  gServer.stop(function() {
+    function loop() {
+      if (!testDir.exists()) {
+        do_print("Staged directory has been cleaned up");
+        do_test_finished();
+      }
+      do_print("Waiting 1 second until cleanup is complete");
+      do_timeout(1000, loop);
+    }
+    loop();
+  });
+}
+
+// Tests homepageURL, getRecommendedURL() and getSearchURL()
+function run_test_1() {
+  function check_urls(aPreference, aGetURL, aTests) {
+    aTests.forEach(function(aTest) {
+      Services.prefs.setCharPref(aPreference, aTest.preferenceValue);
+      do_check_eq(aGetURL(aTest), aTest.expectedURL);
+    });
+  }
+
+  var urlTests = [{
+    preferenceValue:  BASE_URL,
+    expectedURL:      BASE_URL
+  }, {
+    preferenceValue:  BASE_URL + "/%OS%/%VERSION%",
+    expectedURL:      BASE_URL + "/XPCShell/1"
+  }];
+
+  // Extra tests for AddonRepository.getSearchURL();
+  var searchURLTests = [{
+    searchTerms:      "test",
+    preferenceValue:  BASE_URL + "/search?q=%TERMS%",
+    expectedURL:      BASE_URL + "/search?q=test"
+  }, {
+    searchTerms:      "test search",
+    preferenceValue:  BASE_URL + "/%TERMS%",
+    expectedURL:      BASE_URL + "/test%20search"
+  }, {
+    searchTerms:      "odd=search:with&weird\"characters",
+    preferenceValue:  BASE_URL + "/%TERMS%",
+    expectedURL:      BASE_URL + "/odd%3Dsearch%3Awith%26weird%22characters"
+  }];
+
+  // Setup tests for homepageURL, getRecommendedURL() and getSearchURL()
+  var tests = [{
+    initiallyUndefined: true,
+    preference:         PREF_GETADDONS_BROWSEADDONS,
+    urlTests:           urlTests,
+    getURL:             () => AddonRepository.homepageURL
+  }, {
+    initiallyUndefined: true,
+    preference:         PREF_GETADDONS_BROWSERECOMMENDED,
+    urlTests:           urlTests,
+    getURL:             () => AddonRepository.getRecommendedURL()
+  }, {
+    initiallyUndefined: false,
+    preference:         PREF_GETADDONS_BROWSESEARCHRESULTS,
+    urlTests:           urlTests.concat(searchURLTests),
+    getURL:             function getSearchURL(aTest) {
+                          var searchTerms = aTest && aTest.searchTerms ? aTest.searchTerms
+                                                                       : "unused terms";
+                          return AddonRepository.getSearchURL(searchTerms);
+                        }
+  }];
+
+  tests.forEach(function url_test(aTest) {
+    if (aTest.initiallyUndefined) {
+      // Preference is not defined by default
+      do_check_eq(Services.prefs.getPrefType(aTest.preference),
+                  Services.prefs.PREF_INVALID);
+      do_check_eq(aTest.getURL(), DEFAULT_URL);
+    }
+
+    check_urls(aTest.preference, aTest.getURL, aTest.urlTests);
+  });
+
+  run_test_getAddonsByID_fails();
+}
+
+// Tests failure of AddonRepository.getAddonsByIDs()
+function run_test_getAddonsByID_fails() {
+  Services.prefs.setCharPref(GET_TEST.preference, GET_TEST.preferenceValue);
+  var callback = {
+    searchSucceeded: function(aAddonsList, aAddonCount, aTotalResults) {
+      do_throw("searchAddons should not have succeeded");
+      end_test();
+    },
+
+    searchFailed: function() {
+      do_check_false(AddonRepository.isSearching);
+      run_test_getAddonsByID_succeeds();
+    }
+  };
+
+  complete_search(function complete_search_fail_callback(aCallback) {
+    AddonRepository.getAddonsByIDs(GET_TEST.failedIDs, aCallback);
+  }, callback);
+}
+
+// Tests success of AddonRepository.getAddonsByIDs()
+function run_test_getAddonsByID_succeeds() {
+  var callback = {
+    searchSucceeded: function(aAddonsList, aAddonCount, aTotalResults) {
+      do_check_eq(aTotalResults, -1);
+      check_results(aAddonsList, GET_RESULTS, aAddonCount, true);
+      run_test_retrieveRecommended_fails();
+    },
+
+    searchFailed: function() {
+      do_throw("searchAddons should not have failed");
+      end_test();
+    }
+  };
+
+  complete_search(function complete_search_succeed_callback(aCallback) {
+    AddonRepository.getAddonsByIDs(GET_TEST.successfulIDs, aCallback);
+  }, callback);
+}
+
+// Tests failure of AddonRepository.retrieveRecommendedAddons()
+function run_test_retrieveRecommended_fails() {
+  Services.prefs.setCharPref(RECOMMENDED_TEST.preference,
+                             RECOMMENDED_TEST.preferenceValue);
+  var callback = {
+    searchSucceeded: function(aAddonsList, aAddonCount, aTotalResults) {
+      do_throw("retrieveRecommendedAddons should not have succeeded");
+      end_test();
+    },
+
+    searchFailed: function() {
+      do_check_false(AddonRepository.isSearching);
+      run_test_retrieveRecommended_succeed();
+    }
+  };
+
+  complete_search(function retrieveRecommended_failing_callback(aCallback) {
+    AddonRepository.retrieveRecommendedAddons(FAILED_MAX_RESULTS, aCallback);
+  }, callback);
+}
+
+// Tests success of AddonRepository.retrieveRecommendedAddons()
+function run_test_retrieveRecommended_succeed() {
+  var callback = {
+    searchSucceeded: function(aAddonsList, aAddonCount, aTotalResults) {
+      do_check_eq(aTotalResults, -1);
+      check_results(aAddonsList, SEARCH_RESULTS, aAddonCount);
+      run_test_searchAddons_fails();
+    },
+
+    searchFailed: function() {
+      do_throw("retrieveRecommendedAddons should not have failed");
+      end_test();
+    }
+  };
+
+  complete_search(function retrieveRecommended_succeed_callback(aCallback) {
+    AddonRepository.retrieveRecommendedAddons(MAX_RESULTS, aCallback);
+  }, callback);
+}
+
+// Tests failure of AddonRepository.searchAddons()
+function run_test_searchAddons_fails() {
+  Services.prefs.setCharPref(SEARCH_TEST.preference, SEARCH_TEST.preferenceValue);
+  var callback = {
+    searchSucceeded: function(aAddonsList, aAddonCount, aTotalResults) {
+      do_throw("searchAddons should not have succeeded");
+      end_test();
+    },
+
+    searchFailed: function() {
+      do_check_false(AddonRepository.isSearching);
+      run_test_searchAddons_succeeds();
+    }
+  };
+
+  complete_search(function(aCallback) {
+    var searchTerms = SEARCH_TEST.searchTerms;
+    AddonRepository.searchAddons(searchTerms, FAILED_MAX_RESULTS, aCallback);
+  }, callback);
+}
+
+// Tests success of AddonRepository.searchAddons()
+function run_test_searchAddons_succeeds() {
+  var callback = {
+    searchSucceeded: function(aAddonsList, aAddonCount, aTotalResults) {
+      do_check_eq(aTotalResults, TOTAL_RESULTS);
+      check_results(aAddonsList, SEARCH_RESULTS, aAddonCount);
+      end_test();
+    },
+
+    searchFailed: function() {
+      do_throw("searchAddons should not have failed");
+      end_test();
+    }
+  };
+
+  complete_search(function(aCallback) {
+    var searchTerms = SEARCH_TEST.searchTerms;
+    AddonRepository.searchAddons(searchTerms, MAX_RESULTS, aCallback);
+  }, callback);
+}
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_AddonRepository_cache.js b/toolkit/mozapps/webextensions/test/xpcshell/test_AddonRepository_cache.js
new file mode 100644
index 000000000..203235940
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_AddonRepository_cache.js
@@ -0,0 +1,704 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests caching in AddonRepository.jsm
+
+Components.utils.import("resource://gre/modules/addons/AddonRepository.jsm");
+
+var gServer;
+
+const PORT      = 4444;
+const BASE_URL  = "http://localhost:" + PORT;
+
+const PREF_GETADDONS_CACHE_ENABLED = "extensions.getAddons.cache.enabled";
+const PREF_GETADDONS_CACHE_TYPES   = "extensions.getAddons.cache.types";
+const GETADDONS_RESULTS            = BASE_URL + "/data/test_AddonRepository_cache.xml";
+const GETADDONS_EMPTY              = BASE_URL + "/data/test_AddonRepository_empty.xml";
+const GETADDONS_FAILED             = BASE_URL + "/data/test_AddonRepository_failed.xml";
+
+const FILE_DATABASE = "addons.json";
+const ADDON_NAMES = ["test_AddonRepository_1",
+                     "test_AddonRepository_2",
+                     "test_AddonRepository_3"];
+const ADDON_IDS = ADDON_NAMES.map(aName => aName + "@tests.mozilla.org");
+const ADDON_FILES = ADDON_NAMES.map(do_get_addon);
+
+const PREF_ADDON0_CACHE_ENABLED = "extensions." + ADDON_IDS[0] + ".getAddons.cache.enabled";
+const PREF_ADDON1_CACHE_ENABLED = "extensions." + ADDON_IDS[1] + ".getAddons.cache.enabled";
+
+// Properties of an individual add-on that should be checked
+// Note: size and updateDate are checked separately
+const ADDON_PROPERTIES = ["id", "type", "name", "version", "creator",
+                          "developers", "translators", "contributors",
+                          "description", "fullDescription",
+                          "developerComments", "eula", "iconURL", "icons",
+                          "screenshots", "homepageURL", "supportURL",
+                          "optionsURL", "aboutURL", "contributionURL",
+                          "contributionAmount", "averageRating", "reviewCount",
+                          "reviewURL", "totalDownloads", "weeklyDownloads",
+                          "dailyUsers", "sourceURI", "repositoryStatus",
+                          "compatibilityOverrides"];
+
+// The size and updateDate properties are annoying to test for XPI add-ons.
+// However, since we only care about whether the repository value vs. the
+// XPI value is used, we can just test if the property value matches
+// the repository value
+const REPOSITORY_SIZE       = 9;
+const REPOSITORY_UPDATEDATE = 9;
+
+// Get the URI of a subfile locating directly in the folder of
+// the add-on corresponding to the specified id
+function get_subfile_uri(aId, aFilename) {
+  let file = gProfD.clone();
+  file.append("extensions");
+  return do_get_addon_root_uri(file, aId) + aFilename;
+}
+
+
+// Expected repository add-ons
+const REPOSITORY_ADDONS = [{
+  id:                     ADDON_IDS[0],
+  type:                   "extension",
+  name:                   "Repo Add-on 1",
+  version:                "2.1",
+  creator:                {
+                            name: "Repo Add-on 1 - Creator",
+                            url:  BASE_URL + "/repo/1/creator.html"
+                          },
+  developers:             [{
+                            name: "Repo Add-on 1 - First Developer",
+                            url:  BASE_URL + "/repo/1/firstDeveloper.html"
+                          }, {
+                            name: "Repo Add-on 1 - Second Developer",
+                            url:  BASE_URL + "/repo/1/secondDeveloper.html"
+                          }],
+  description:            "Repo Add-on 1 - Description\nSecond line",
+  fullDescription:        "Repo Add-on 1 - Full Description & some extra",
+  developerComments:      "Repo Add-on 1\nDeveloper Comments",
+  eula:                   "Repo Add-on 1 - EULA",
+  iconURL:                BASE_URL + "/repo/1/icon.png",
+  icons:                  { "32": BASE_URL + "/repo/1/icon.png" },
+  homepageURL:            BASE_URL + "/repo/1/homepage.html",
+  supportURL:             BASE_URL + "/repo/1/support.html",
+  contributionURL:        BASE_URL + "/repo/1/meetDevelopers.html",
+  contributionAmount:     "$11.11",
+  averageRating:          1,
+  reviewCount:            1111,
+  reviewURL:              BASE_URL + "/repo/1/review.html",
+  totalDownloads:         2221,
+  weeklyDownloads:        3331,
+  dailyUsers:             4441,
+  sourceURI:              BASE_URL + "/repo/1/install.xpi",
+  repositoryStatus:       4,
+  compatibilityOverrides: [{
+                            type: "incompatible",
+                            minVersion: 0.1,
+                            maxVersion: 0.2,
+                            appID: "xpcshell@tests.mozilla.org",
+                            appMinVersion: 3.0,
+                            appMaxVersion: 4.0
+                          }, {
+                            type: "incompatible",
+                            minVersion: 0.2,
+                            maxVersion: 0.3,
+                            appID: "xpcshell@tests.mozilla.org",
+                            appMinVersion: 5.0,
+                            appMaxVersion: 6.0
+                          }]
+}, {
+  id:                     ADDON_IDS[1],
+  type:                   "theme",
+  name:                   "Repo Add-on 2",
+  version:                "2.2",
+  creator:                {
+                            name: "Repo Add-on 2 - Creator",
+                            url:  BASE_URL + "/repo/2/creator.html"
+                          },
+  developers:             [{
+                            name: "Repo Add-on 2 - First Developer",
+                            url:  BASE_URL + "/repo/2/firstDeveloper.html"
+                          }, {
+                            name: "Repo Add-on 2 - Second Developer",
+                            url:  BASE_URL + "/repo/2/secondDeveloper.html"
+                          }],
+  description:            "Repo Add-on 2 - Description",
+  fullDescription:        "Repo Add-on 2 - Full Description",
+  developerComments:      "Repo Add-on 2 - Developer Comments",
+  eula:                   "Repo Add-on 2 - EULA",
+  iconURL:                BASE_URL + "/repo/2/icon.png",
+  icons:                  { "32": BASE_URL + "/repo/2/icon.png" },
+  screenshots:            [{
+                            url:          BASE_URL + "/repo/2/firstFull.png",
+                            thumbnailURL: BASE_URL + "/repo/2/firstThumbnail.png",
+                            caption:      "Repo Add-on 2 - First Caption"
+                          }, {
+                            url:          BASE_URL + "/repo/2/secondFull.png",
+                            thumbnailURL: BASE_URL + "/repo/2/secondThumbnail.png",
+                            caption:      "Repo Add-on 2 - Second Caption"
+                          }],
+  homepageURL:            BASE_URL + "/repo/2/homepage.html",
+  supportURL:             BASE_URL + "/repo/2/support.html",
+  contributionURL:        BASE_URL + "/repo/2/meetDevelopers.html",
+  contributionAmount:     null,
+  averageRating:          2,
+  reviewCount:            1112,
+  reviewURL:              BASE_URL + "/repo/2/review.html",
+  totalDownloads:         2222,
+  weeklyDownloads:        3332,
+  dailyUsers:             4442,
+  sourceURI:              BASE_URL + "/repo/2/install.xpi",
+  repositoryStatus:       9
+}, {
+  id:                     ADDON_IDS[2],
+  type:                   "theme",
+  name:                   "Repo Add-on 3",
+  version:                "2.3",
+  iconURL:                BASE_URL + "/repo/3/icon.png",
+  icons:                  { "32": BASE_URL + "/repo/3/icon.png" },
+  screenshots:            [{
+                            url:          BASE_URL + "/repo/3/firstFull.png",
+                            thumbnailURL: BASE_URL + "/repo/3/firstThumbnail.png",
+                            caption:      "Repo Add-on 3 - First Caption"
+                          }, {
+                            url:          BASE_URL + "/repo/3/secondFull.png",
+                            thumbnailURL: BASE_URL + "/repo/3/secondThumbnail.png",
+                            caption:      "Repo Add-on 3 - Second Caption"
+                          }]
+}];
+
+
+// Expected add-ons when not using cache
+const WITHOUT_CACHE = [{
+  id:                     ADDON_IDS[0],
+  type:                   "extension",
+  name:                   "XPI Add-on 1",
+  version:                "1.1",
+  creator:                { name: "XPI Add-on 1 - Creator" },
+  developers:             [{ name: "XPI Add-on 1 - First Developer" },
+                           { name: "XPI Add-on 1 - Second Developer" }],
+  translators:            [{ name: "XPI Add-on 1 - First Translator" },
+                           { name: "XPI Add-on 1 - Second Translator" }],
+  contributors:           [{ name: "XPI Add-on 1 - First Contributor" },
+                           { name: "XPI Add-on 1 - Second Contributor" }],
+  description:            "XPI Add-on 1 - Description",
+  iconURL:                BASE_URL + "/xpi/1/icon.png",
+  icons:                  { "32": BASE_URL + "/xpi/1/icon.png" },
+  homepageURL:            BASE_URL + "/xpi/1/homepage.html",
+  optionsURL:             BASE_URL + "/xpi/1/options.html",
+  aboutURL:               BASE_URL + "/xpi/1/about.html",
+  sourceURI:              NetUtil.newURI(ADDON_FILES[0]).spec
+}, {
+  id:                     ADDON_IDS[1],
+  type:                   "theme",
+  name:                   "XPI Add-on 2",
+  version:                "1.2",
+  sourceURI:              NetUtil.newURI(ADDON_FILES[1]).spec,
+  icons:                  {}
+}, {
+  id:                     ADDON_IDS[2],
+  type:                   "theme",
+  name:                   "XPI Add-on 3",
+  version:                "1.3",
+  get iconURL () {
+    return get_subfile_uri(ADDON_IDS[2], "icon.png");
+  },
+  get icons () {
+    return { "32": get_subfile_uri(ADDON_IDS[2], "icon.png") };
+  },
+  screenshots:            [{ get url () { return get_subfile_uri(ADDON_IDS[2], "preview.png"); } }],
+  sourceURI:              NetUtil.newURI(ADDON_FILES[2]).spec
+}];
+
+
+// Expected add-ons when using cache
+const WITH_CACHE = [{
+  id:                     ADDON_IDS[0],
+  type:                   "extension",
+  name:                   "XPI Add-on 1",
+  version:                "1.1",
+  creator:                {
+                            name: "Repo Add-on 1 - Creator",
+                            url:  BASE_URL + "/repo/1/creator.html"
+                          },
+  developers:             [{ name: "XPI Add-on 1 - First Developer" },
+                           { name: "XPI Add-on 1 - Second Developer" }],
+  translators:            [{ name: "XPI Add-on 1 - First Translator" },
+                           { name: "XPI Add-on 1 - Second Translator" }],
+  contributors:           [{ name: "XPI Add-on 1 - First Contributor" },
+                           { name: "XPI Add-on 1 - Second Contributor" }],
+  description:            "XPI Add-on 1 - Description",
+  fullDescription:        "Repo Add-on 1 - Full Description & some extra",
+  developerComments:      "Repo Add-on 1\nDeveloper Comments",
+  eula:                   "Repo Add-on 1 - EULA",
+  iconURL:                BASE_URL + "/xpi/1/icon.png",
+  icons:                  { "32": BASE_URL + "/xpi/1/icon.png" },
+  homepageURL:            BASE_URL + "/xpi/1/homepage.html",
+  supportURL:             BASE_URL + "/repo/1/support.html",
+  optionsURL:             BASE_URL + "/xpi/1/options.html",
+  aboutURL:               BASE_URL + "/xpi/1/about.html",
+  contributionURL:        BASE_URL + "/repo/1/meetDevelopers.html",
+  contributionAmount:     "$11.11",
+  averageRating:          1,
+  reviewCount:            1111,
+  reviewURL:              BASE_URL + "/repo/1/review.html",
+  totalDownloads:         2221,
+  weeklyDownloads:        3331,
+  dailyUsers:             4441,
+  sourceURI:              NetUtil.newURI(ADDON_FILES[0]).spec,
+  repositoryStatus:       4,
+  compatibilityOverrides: [{
+                            type: "incompatible",
+                            minVersion: 0.1,
+                            maxVersion: 0.2,
+                            appID: "xpcshell@tests.mozilla.org",
+                            appMinVersion: 3.0,
+                            appMaxVersion: 4.0
+                          }, {
+                            type: "incompatible",
+                            minVersion: 0.2,
+                            maxVersion: 0.3,
+                            appID: "xpcshell@tests.mozilla.org",
+                            appMinVersion: 5.0,
+                            appMaxVersion: 6.0
+                          }]
+}, {
+  id:                     ADDON_IDS[1],
+  type:                   "theme",
+  name:                   "XPI Add-on 2",
+  version:                "1.2",
+  creator:                {
+                            name: "Repo Add-on 2 - Creator",
+                            url:  BASE_URL + "/repo/2/creator.html"
+                          },
+  developers:             [{
+                            name: "Repo Add-on 2 - First Developer",
+                            url:  BASE_URL + "/repo/2/firstDeveloper.html"
+                          }, {
+                            name: "Repo Add-on 2 - Second Developer",
+                            url:  BASE_URL + "/repo/2/secondDeveloper.html"
+                          }],
+  description:            "Repo Add-on 2 - Description",
+  fullDescription:        "Repo Add-on 2 - Full Description",
+  developerComments:      "Repo Add-on 2 - Developer Comments",
+  eula:                   "Repo Add-on 2 - EULA",
+  iconURL:                BASE_URL + "/repo/2/icon.png",
+  icons:                  { "32": BASE_URL + "/repo/2/icon.png" },
+  screenshots:            [{
+                            url:          BASE_URL + "/repo/2/firstFull.png",
+                            thumbnailURL: BASE_URL + "/repo/2/firstThumbnail.png",
+                            caption:      "Repo Add-on 2 - First Caption"
+                          }, {
+                            url:          BASE_URL + "/repo/2/secondFull.png",
+                            thumbnailURL: BASE_URL + "/repo/2/secondThumbnail.png",
+                            caption:      "Repo Add-on 2 - Second Caption"
+                          }],
+  homepageURL:            BASE_URL + "/repo/2/homepage.html",
+  supportURL:             BASE_URL + "/repo/2/support.html",
+  contributionURL:        BASE_URL + "/repo/2/meetDevelopers.html",
+  contributionAmount:     null,
+  averageRating:          2,
+  reviewCount:            1112,
+  reviewURL:              BASE_URL + "/repo/2/review.html",
+  totalDownloads:         2222,
+  weeklyDownloads:        3332,
+  dailyUsers:             4442,
+  sourceURI:              NetUtil.newURI(ADDON_FILES[1]).spec,
+  repositoryStatus:       9
+}, {
+  id:                     ADDON_IDS[2],
+  type:                   "theme",
+  name:                   "XPI Add-on 3",
+  version:                "1.3",
+  get iconURL () {
+    return get_subfile_uri(ADDON_IDS[2], "icon.png");
+  },
+  get icons () {
+    return { "32": get_subfile_uri(ADDON_IDS[2], "icon.png") };
+  },
+  screenshots:            [{
+                            url:          BASE_URL + "/repo/3/firstFull.png",
+                            thumbnailURL: BASE_URL + "/repo/3/firstThumbnail.png",
+                            caption:      "Repo Add-on 3 - First Caption"
+                          }, {
+                            url:          BASE_URL + "/repo/3/secondFull.png",
+                            thumbnailURL: BASE_URL + "/repo/3/secondThumbnail.png",
+                            caption:      "Repo Add-on 3 - Second Caption"
+                          }],
+  sourceURI:              NetUtil.newURI(ADDON_FILES[2]).spec
+}];
+
+// Expected add-ons when using cache
+const WITH_EXTENSION_CACHE = [{
+  id:                     ADDON_IDS[0],
+  type:                   "extension",
+  name:                   "XPI Add-on 1",
+  version:                "1.1",
+  creator:                {
+                            name: "Repo Add-on 1 - Creator",
+                            url:  BASE_URL + "/repo/1/creator.html"
+                          },
+  developers:             [{ name: "XPI Add-on 1 - First Developer" },
+                           { name: "XPI Add-on 1 - Second Developer" }],
+  translators:            [{ name: "XPI Add-on 1 - First Translator" },
+                           { name: "XPI Add-on 1 - Second Translator" }],
+  contributors:           [{ name: "XPI Add-on 1 - First Contributor" },
+                           { name: "XPI Add-on 1 - Second Contributor" }],
+  description:            "XPI Add-on 1 - Description",
+  fullDescription:        "Repo Add-on 1 - Full Description & some extra",
+  developerComments:      "Repo Add-on 1\nDeveloper Comments",
+  eula:                   "Repo Add-on 1 - EULA",
+  iconURL:                BASE_URL + "/xpi/1/icon.png",
+  icons:                  { "32": BASE_URL + "/xpi/1/icon.png" },
+  homepageURL:            BASE_URL + "/xpi/1/homepage.html",
+  supportURL:             BASE_URL + "/repo/1/support.html",
+  optionsURL:             BASE_URL + "/xpi/1/options.html",
+  aboutURL:               BASE_URL + "/xpi/1/about.html",
+  contributionURL:        BASE_URL + "/repo/1/meetDevelopers.html",
+  contributionAmount:     "$11.11",
+  averageRating:          1,
+  reviewCount:            1111,
+  reviewURL:              BASE_URL + "/repo/1/review.html",
+  totalDownloads:         2221,
+  weeklyDownloads:        3331,
+  dailyUsers:             4441,
+  sourceURI:              NetUtil.newURI(ADDON_FILES[0]).spec,
+  repositoryStatus:       4,
+  compatibilityOverrides: [{
+                            type: "incompatible",
+                            minVersion: 0.1,
+                            maxVersion: 0.2,
+                            appID: "xpcshell@tests.mozilla.org",
+                            appMinVersion: 3.0,
+                            appMaxVersion: 4.0
+                          }, {
+                            type: "incompatible",
+                            minVersion: 0.2,
+                            maxVersion: 0.3,
+                            appID: "xpcshell@tests.mozilla.org",
+                            appMinVersion: 5.0,
+                            appMaxVersion: 6.0
+                          }]
+}, {
+  id:                     ADDON_IDS[1],
+  type:                   "theme",
+  name:                   "XPI Add-on 2",
+  version:                "1.2",
+  sourceURI:              NetUtil.newURI(ADDON_FILES[1]).spec,
+  icons:                  {}
+}, {
+  id:                     ADDON_IDS[2],
+  type:                   "theme",
+  name:                   "XPI Add-on 3",
+  version:                "1.3",
+  get iconURL () {
+    return get_subfile_uri(ADDON_IDS[2], "icon.png");
+  },
+  get icons () {
+    return { "32": get_subfile_uri(ADDON_IDS[2], "icon.png") };
+  },
+  screenshots:            [{ get url () { return get_subfile_uri(ADDON_IDS[2], "preview.png"); } }],
+  sourceURI:              NetUtil.newURI(ADDON_FILES[2]).spec
+}];
+
+var gDBFile = gProfD.clone();
+gDBFile.append(FILE_DATABASE);
+
+/*
+ * Check the actual add-on results against the expected add-on results
+ *
+ * @param  aActualAddons
+ *         The array of actual add-ons to check
+ * @param  aExpectedAddons
+ *         The array of expected add-ons to check against
+ * @param  aFromRepository
+ *         An optional boolean representing if the add-ons are from
+ *         the repository
+ */
+function check_results(aActualAddons, aExpectedAddons, aFromRepository) {
+  aFromRepository = !!aFromRepository;
+
+  do_check_addons(aActualAddons, aExpectedAddons, ADDON_PROPERTIES);
+
+  // Separately test size and updateDate (they should only be equal to the
+  // REPOSITORY values if they are from the repository)
+  aActualAddons.forEach(function(aActualAddon) {
+    if (aActualAddon.size)
+      do_check_eq(aActualAddon.size === REPOSITORY_SIZE, aFromRepository);
+
+    if (aActualAddon.updateDate) {
+      let time = aActualAddon.updateDate.getTime();
+      do_check_eq(time === 1000 * REPOSITORY_UPDATEDATE, aFromRepository);
+    }
+  });
+}
+
+/*
+ * Check the add-ons in the cache. This function also tests
+ * AddonRepository.getCachedAddonByID()
+ *
+ * @param  aExpectedToFind
+ *         An array of booleans representing which REPOSITORY_ADDONS are
+ *         expected to be found in the cache
+ * @param  aExpectedImmediately
+ *         A boolean representing if results from the cache are expected
+ *         immediately. Results are not immediate if the cache has not been
+ *         initialized yet.
+ * @return Promise{null}
+ *         Resolves once the checks are complete
+ */
+function check_cache(aExpectedToFind, aExpectedImmediately) {
+  do_check_eq(aExpectedToFind.length, REPOSITORY_ADDONS.length);
+
+  let lookups = [];
+
+  for (let i = 0 ; i < REPOSITORY_ADDONS.length ; i++) {
+    lookups.push(new Promise((resolve, reject) => {
+      let immediatelyFound = true;
+      let expected = aExpectedToFind[i] ? REPOSITORY_ADDONS[i] : null;
+      // can't Promise-wrap this because we're also testing whether the callback is
+      // sync or async
+      AddonRepository.getCachedAddonByID(REPOSITORY_ADDONS[i].id, function(aAddon) {
+        do_check_eq(immediatelyFound, aExpectedImmediately);
+        if (expected == null)
+          do_check_eq(aAddon, null);
+        else
+          check_results([aAddon], [expected], true);
+        resolve();
+      });
+      immediatelyFound = false;
+    }));
+  }
+  return Promise.all(lookups);
+}
+
+/*
+ * Task to check an initialized cache by checking the cache, then restarting the
+ * manager, and checking the cache. This checks that the cache is consistent
+ * across manager restarts.
+ *
+ * @param  aExpectedToFind
+ *         An array of booleans representing which REPOSITORY_ADDONS are
+ *         expected to be found in the cache
+ */
+function* check_initialized_cache(aExpectedToFind) {
+  yield check_cache(aExpectedToFind, true);
+  yield promiseRestartManager();
+
+  // If cache is disabled, then expect results immediately
+  let cacheEnabled = Services.prefs.getBoolPref(PREF_GETADDONS_CACHE_ENABLED);
+  yield check_cache(aExpectedToFind, !cacheEnabled);
+}
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* setup() {
+  // Setup for test
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  startupManager();
+
+  // Install XPI add-ons
+  yield promiseInstallAllFiles(ADDON_FILES);
+  yield promiseRestartManager();
+
+  gServer = createHttpServer(PORT);
+  gServer.registerDirectory("/data/", do_get_file("data"));
+});
+
+// Tests AddonRepository.cacheEnabled
+add_task(function* run_test_1() {
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, false);
+  do_check_false(AddonRepository.cacheEnabled);
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+  do_check_true(AddonRepository.cacheEnabled);
+});
+
+// Tests that the cache and database begin as empty
+add_task(function* run_test_2() {
+  do_check_false(gDBFile.exists());
+  yield check_cache([false, false, false], false);
+  yield AddonRepository.flush();
+});
+
+// Tests repopulateCache when the search fails
+add_task(function* run_test_3() {
+  do_check_true(gDBFile.exists());
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, GETADDONS_FAILED);
+
+  yield AddonRepository.repopulateCache();
+  yield check_initialized_cache([false, false, false]);
+});
+
+// Tests repopulateCache when search returns no results
+add_task(function* run_test_4() {
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, GETADDONS_EMPTY);
+
+  yield AddonRepository.repopulateCache();
+  yield check_initialized_cache([false, false, false]);
+});
+
+// Tests repopulateCache when search returns results
+add_task(function* run_test_5() {
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, GETADDONS_RESULTS);
+
+  yield AddonRepository.repopulateCache();
+  yield check_initialized_cache([true, true, true]);
+});
+
+// Tests repopulateCache when caching is disabled for a single add-on
+add_task(function* run_test_5_1() {
+  Services.prefs.setBoolPref(PREF_ADDON0_CACHE_ENABLED, false);
+
+  yield AddonRepository.repopulateCache();
+
+  // Reset pref for next test
+  Services.prefs.setBoolPref(PREF_ADDON0_CACHE_ENABLED, true);
+
+  yield check_initialized_cache([false, true, true]);
+});
+
+// Tests repopulateCache when caching is disabled
+add_task(function* run_test_6() {
+  do_check_true(gDBFile.exists());
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, false);
+
+  yield AddonRepository.repopulateCache();
+  // Database should have been deleted
+  do_check_false(gDBFile.exists());
+
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+  yield check_cache([false, false, false], false);
+  yield AddonRepository.flush();
+});
+
+// Tests cacheAddons when the search fails
+add_task(function* run_test_7() {
+  do_check_true(gDBFile.exists());
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, GETADDONS_FAILED);
+
+  yield new Promise((resolve, reject) =>
+    AddonRepository.cacheAddons(ADDON_IDS, resolve));
+  yield check_initialized_cache([false, false, false]);
+});
+
+// Tests cacheAddons when the search returns no results
+add_task(function* run_test_8() {
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, GETADDONS_EMPTY);
+
+  yield new Promise((resolve, reject) =>
+    AddonRepository.cacheAddons(ADDON_IDS, resolve));
+  yield check_initialized_cache([false, false, false]);
+});
+
+// Tests cacheAddons for a single add-on when search returns results
+add_task(function* run_test_9() {
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, GETADDONS_RESULTS);
+
+  yield new Promise((resolve, reject) =>
+    AddonRepository.cacheAddons([ADDON_IDS[0]], resolve));
+  yield check_initialized_cache([true, false, false]);
+});
+
+// Tests cacheAddons when caching is disabled for a single add-on
+add_task(function* run_test_9_1() {
+  Services.prefs.setBoolPref(PREF_ADDON1_CACHE_ENABLED, false);
+
+  yield new Promise((resolve, reject) =>
+    AddonRepository.cacheAddons(ADDON_IDS, resolve));
+
+  // Reset pref for next test
+  Services.prefs.setBoolPref(PREF_ADDON1_CACHE_ENABLED, true);
+
+  yield check_initialized_cache([true, false, true]);
+});
+
+// Tests cacheAddons for multiple add-ons, some already in the cache,
+add_task(function* run_test_10() {
+  yield new Promise((resolve, reject) =>
+    AddonRepository.cacheAddons(ADDON_IDS, resolve));
+  yield check_initialized_cache([true, true, true]);
+});
+
+// Tests cacheAddons when caching is disabled
+add_task(function* run_test_11() {
+  do_check_true(gDBFile.exists());
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, false);
+
+  yield new Promise((resolve, reject) =>
+    AddonRepository.cacheAddons(ADDON_IDS, resolve));
+  do_check_true(gDBFile.exists());
+
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+  yield check_initialized_cache([true, true, true]);
+});
+
+// Tests that XPI add-ons do not use any of the repository properties if
+// caching is disabled, even if there are repository properties available
+add_task(function* run_test_12() {
+  do_check_true(gDBFile.exists());
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, false);
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, GETADDONS_RESULTS);
+
+  let aAddons = yield promiseAddonsByIDs(ADDON_IDS);
+  check_results(aAddons, WITHOUT_CACHE);
+});
+
+// Tests that a background update with caching disabled deletes the add-ons
+// database, and that XPI add-ons still do not use any of repository properties
+add_task(function* run_test_13() {
+  do_check_true(gDBFile.exists());
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS_PERFORMANCE, GETADDONS_EMPTY);
+
+  yield AddonManagerInternal.backgroundUpdateCheck();
+  // Database should have been deleted
+  do_check_false(gDBFile.exists());
+
+  let aAddons = yield promiseAddonsByIDs(ADDON_IDS);
+  check_results(aAddons, WITHOUT_CACHE);
+});
+
+// Tests that the XPI add-ons have the correct properties if caching is
+// enabled but has no information
+add_task(function* run_test_14() {
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+
+  yield AddonManagerInternal.backgroundUpdateCheck();
+  yield AddonRepository.flush();
+  do_check_true(gDBFile.exists());
+
+  let aAddons = yield promiseAddonsByIDs(ADDON_IDS);
+  check_results(aAddons, WITHOUT_CACHE);
+});
+
+// Tests that the XPI add-ons correctly use the repository properties when
+// caching is enabled and the repository information is available
+add_task(function* run_test_15() {
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS_PERFORMANCE, GETADDONS_RESULTS);
+
+  yield AddonManagerInternal.backgroundUpdateCheck();
+  let aAddons = yield promiseAddonsByIDs(ADDON_IDS);
+  check_results(aAddons, WITH_CACHE);
+});
+
+// Tests that restarting the manager does not change the checked properties
+// on the XPI add-ons (repository properties still exist and are still properly
+// used)
+add_task(function* run_test_16() {
+  yield promiseRestartManager();
+
+  let aAddons = yield promiseAddonsByIDs(ADDON_IDS);
+  check_results(aAddons, WITH_CACHE);
+});
+
+// Tests that setting a list of types to cache works
+add_task(function* run_test_17() {
+  Services.prefs.setCharPref(PREF_GETADDONS_CACHE_TYPES, "foo,bar,extension,baz");
+
+  yield AddonManagerInternal.backgroundUpdateCheck();
+  let aAddons = yield promiseAddonsByIDs(ADDON_IDS);
+  check_results(aAddons, WITH_EXTENSION_CACHE);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_AddonRepository_compatmode.js b/toolkit/mozapps/webextensions/test/xpcshell/test_AddonRepository_compatmode.js
new file mode 100644
index 000000000..6aec96ea1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_AddonRepository_compatmode.js
@@ -0,0 +1,90 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that AddonRepository correctly fills in the
+// %COMPATIBILITY_MODE% token in the Search API URL.
+
+const PREF_GETADDONS_GETSEARCHRESULTS    = "extensions.getAddons.search.url";
+
+Components.utils.import("resource://testing-common/httpd.js");
+var gServer = new HttpServer();
+gServer.start(-1);
+gPort = gServer.identity.primaryPort;
+var COMPATIBILITY_PREF;
+
+// register static files with server and interpolate port numbers in them
+mapFile("/data/test_AddonRepository_compatmode_ignore.xml", gServer);
+mapFile("/data/test_AddonRepository_compatmode_normal.xml", gServer);
+mapFile("/data/test_AddonRepository_compatmode_strict.xml", gServer);
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  Services.prefs.setCharPref(PREF_GETADDONS_GETSEARCHRESULTS,
+                             "http://localhost:" + gPort + "/data/test_AddonRepository_compatmode_%COMPATIBILITY_MODE%.xml");
+  startupManager();
+  run_test_1();
+}
+
+function end_test() {
+  gServer.stop(do_test_finished);
+}
+
+// Strict compatibility checking disabled.
+function run_test_1() {
+  do_print("Testing with strict compatibility checking disabled");
+  Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+
+  AddonRepository.searchAddons("test", 6, {
+    searchSucceeded: function(aAddons) {
+      do_check_neq(aAddons, null);
+      do_check_eq(aAddons.length, 1);
+      do_check_eq(aAddons[0].id, "compatmode-normal@tests.mozilla.org");
+
+      run_test_2();
+    },
+    searchFailed: function() {
+      do_throw("Search should not have failed");
+    }
+  });
+}
+
+// Strict compatibility checking enabled.
+function run_test_2() {
+  do_print("Testing with strict compatibility checking enabled");
+  Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, true);
+
+  AddonRepository.searchAddons("test", 6, {
+    searchSucceeded: function(aAddons) {
+      do_check_neq(aAddons, null);
+      do_check_eq(aAddons.length, 1);
+      do_check_eq(aAddons[0].id, "compatmode-strict@tests.mozilla.org");
+
+      run_test_3();
+    },
+    searchFailed: function() {
+      do_throw("Search should not have failed");
+    }
+  });
+}
+
+// Compatibility checking disabled.
+function run_test_3() {
+  do_print("Testing with all compatibility checking disabled");
+  AddonManager.checkCompatibility = false;
+
+  AddonRepository.searchAddons("test", 6, {
+    searchSucceeded: function(aAddons) {
+      do_check_neq(aAddons, null);
+      do_check_eq(aAddons.length, 1);
+      do_check_eq(aAddons[0].id, "compatmode-ignore@tests.mozilla.org");
+
+      end_test();
+    },
+    searchFailed: function() {
+      do_throw("Search should not have failed");
+    }
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_ChromeManifestParser.js b/toolkit/mozapps/webextensions/test/xpcshell/test_ChromeManifestParser.js
new file mode 100644
index 000000000..605c4224b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_ChromeManifestParser.js
@@ -0,0 +1,108 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests ChromeManifestParser.js
+
+Components.utils.import("resource://gre/modules/ChromeManifestParser.jsm");
+
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  startupManager();
+
+  installAllFiles([do_get_addon("test_chromemanifest_1"),
+                   do_get_addon("test_chromemanifest_2"),
+                   do_get_addon("test_chromemanifest_3"),
+                   do_get_addon("test_chromemanifest_4")],
+                  function() {
+
+    restartManager();
+    run_test_1();
+  });
+}
+
+function run_test_1() {
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org"],
+                              function([a1, a2, a3, a4]) {
+    // addon1
+    let a1Uri = a1.getResourceURI("/").spec;
+    let expected = [
+      {type: "content", baseURI: a1Uri, args: ["test-addon-1", "chrome/content"]},
+      {type: "locale", baseURI: a1Uri, args: ["test-addon-1", "en-US", "locale/en-US"]},
+      {type: "locale", baseURI: a1Uri, args: ["test-addon-1", "fr-FR", "locale/fr-FR"]},
+      {type: "overlay", baseURI: a1Uri, args: ["chrome://browser/content/browser.xul", "chrome://test-addon-1/content/overlay.xul"]}
+    ];
+    let manifestURI = a1.getResourceURI("chrome.manifest");
+    let manifest = ChromeManifestParser.parseSync(manifestURI);
+
+    do_check_true(Array.isArray(manifest));
+    do_check_eq(manifest.length, expected.length);
+    for (let i = 0; i < manifest.length; i++) {
+      do_check_eq(JSON.stringify(manifest[i]), JSON.stringify(expected[i]));
+    }
+
+    // addon2
+    let a2Uri = a2.getResourceURI("/").spec;
+    expected = [
+      {type: "content", baseURI: a2Uri, args: ["test-addon-1", "chrome/content"]},
+      {type: "locale", baseURI: a2Uri, args: ["test-addon-1", "en-US", "locale/en-US"]},
+      {type: "locale", baseURI: a2Uri, args: ["test-addon-1", "fr-FR", "locale/fr-FR"]},
+      {type: "overlay", baseURI: a2Uri, args: ["chrome://browser/content/browser.xul", "chrome://test-addon-1/content/overlay.xul"]},
+      {type: "binary-component", baseURI: a2Uri, args: ["components/something.so"]}
+    ];
+    manifestURI = a2.getResourceURI("chrome.manifest");
+    manifest = ChromeManifestParser.parseSync(manifestURI);
+
+    do_check_true(Array.isArray(manifest));
+    do_check_eq(manifest.length, expected.length);
+    for (let i = 0; i < manifest.length; i++) {
+      do_check_eq(JSON.stringify(manifest[i]), JSON.stringify(expected[i]));
+    }
+
+    // addon3
+    let a3Uri = a3.getResourceURI("/").spec;
+    expected = [
+      {type: "content", baseURI: a3Uri, args: ["test-addon-1", "chrome/content"]},
+      {type: "locale", baseURI: a3Uri, args: ["test-addon-1", "en-US", "locale/en-US"]},
+      {type: "locale", baseURI: a3Uri, args: ["test-addon-1", "fr-FR", "locale/fr-FR"]},
+      {type: "overlay", baseURI: a3Uri, args: ["chrome://browser/content/browser.xul", "chrome://test-addon-1/content/overlay.xul"]},
+      {type: "binary-component", baseURI: a3Uri, args: ["components/something.so"]},
+      {type: "locale", baseURI: "jar:" + a3.getResourceURI("/inner.jar").spec + "!/", args: ["test-addon-1", "en-NZ", "locale/en-NZ"]},
+    ];
+    manifestURI = a3.getResourceURI("chrome.manifest");
+    manifest = ChromeManifestParser.parseSync(manifestURI);
+
+    do_check_true(Array.isArray(manifest));
+    do_check_eq(manifest.length, expected.length);
+    for (let i = 0; i < manifest.length; i++) {
+      do_check_eq(JSON.stringify(manifest[i]), JSON.stringify(expected[i]));
+    }
+
+    // addon4
+    let a4Uri = a4.getResourceURI("/").spec;
+    expected = [
+      {type: "content", baseURI: a4Uri, args: ["test-addon-1", "chrome/content"]},
+      {type: "locale", baseURI: a4Uri, args: ["test-addon-1", "en-US", "locale/en-US"]},
+      {type: "locale", baseURI: a4Uri, args: ["test-addon-1", "fr-FR", "locale/fr-FR"]},
+      {type: "overlay", baseURI: a4Uri, args: ["chrome://browser/content/browser.xul", "chrome://test-addon-1/content/overlay.xul"]},
+      {type: "binary-component", baseURI: a4.getResourceURI("components/").spec, args: ["mycomponent.dll"]},
+      {type: "binary-component", baseURI: a4.getResourceURI("components/other/").spec, args: ["thermalnuclearwar.dll"]}
+    ];
+    manifestURI = a4.getResourceURI("chrome.manifest");
+    manifest = ChromeManifestParser.parseSync(manifestURI);
+
+    do_check_true(Array.isArray(manifest));
+    do_check_eq(manifest.length, expected.length);
+    for (let i = 0; i < manifest.length; i++) {
+      do_check_eq(JSON.stringify(manifest[i]), JSON.stringify(expected[i]));
+    }
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_DeferredSave.js b/toolkit/mozapps/webextensions/test/xpcshell/test_DeferredSave.js
new file mode 100644
index 000000000..2a6ff291e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_DeferredSave.js
@@ -0,0 +1,549 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test behaviour of module to perform deferred save of data
+// files to disk
+
+"use strict";
+
+const testFile = gProfD.clone();
+testFile.append("DeferredSaveTest");
+
+Components.utils.import("resource://gre/modules/Promise.jsm");
+
+var DSContext = Components.utils.import("resource://gre/modules/DeferredSave.jsm", {});
+var DeferredSave = DSContext.DeferredSave;
+
+// Test wrapper to let us do promise/task based testing of DeferredSave
+function DeferredSaveTester(aDataProvider) {
+  let tester = {
+    // Deferred for the promise returned by the mock writeAtomic
+    waDeferred: null,
+
+    // The most recent data "written" by the mock OS.File.writeAtomic
+    writtenData: undefined,
+
+    dataToSave: "Data to save",
+
+    save: (aData, aWriteHandler) => {
+      tester.writeHandler = aWriteHandler || writer;
+      tester.dataToSave = aData;
+      return tester.saver.saveChanges();
+    },
+
+    flush: (aWriteHandler) => {
+      tester.writeHandler = aWriteHandler || writer;
+      return tester.saver.flush();
+    },
+
+    get lastError() {
+      return tester.saver.lastError;
+    }
+  };
+
+  // Default write handler for most cases where the test case doesn't need
+  // to do anything while the write is in progress; just completes the write
+  // on the next event loop
+  function writer(aTester) {
+    do_print("default write callback");
+    let length = aTester.writtenData.length;
+    do_execute_soon(() => aTester.waDeferred.resolve(length));
+  }
+
+  if (!aDataProvider)
+    aDataProvider = () => tester.dataToSave;
+
+  tester.saver = new DeferredSave(testFile.path, aDataProvider);
+
+  // Install a mock for OS.File.writeAtomic to let us control the async
+  // behaviour of the promise
+  DSContext.OS.File.writeAtomic = function mock_writeAtomic(aFile, aData, aOptions) {
+      do_print("writeAtomic: " + aFile + " data: '" + aData + "', " + aOptions.toSource());
+      tester.writtenData = aData;
+      tester.waDeferred = Promise.defer();
+      tester.writeHandler(tester);
+      return tester.waDeferred.promise;
+    };
+
+  return tester;
+}
+
+/**
+ * Install a mock nsITimer factory that triggers on the next spin of
+ * the event loop after it is scheduled
+ */
+function setQuickMockTimer() {
+  let quickTimer = {
+    initWithCallback: function(aFunction, aDelay, aType) {
+      do_print("Starting quick timer, delay = " + aDelay);
+      do_execute_soon(aFunction);
+    },
+    cancel: function() {
+      do_throw("Attempted to cancel a quickMockTimer");
+    }
+  };
+  DSContext.MakeTimer = () => {
+    do_print("Creating quick timer");
+    return quickTimer;
+  };
+}
+
+/**
+ * Install a mock nsITimer factory in DeferredSave.jsm, returning a promise that resolves
+ * when the client code sets the timer. Test cases can use this to wait for client code to
+ * be ready for a timer event, and then signal the event by calling mockTimer.callback().
+ * This could use some enhancement; clients can re-use the returned timer,
+ * but with this implementation it's not possible for the test to wait for
+ * a second call to initWithCallback() on the re-used timer.
+ * @return Promise{mockTimer} that resolves when initWithCallback()
+ *         is called
+ */
+function setPromiseMockTimer() {
+  let waiter = Promise.defer();
+  let mockTimer = {
+    callback: null,
+    delay: null,
+    type: null,
+    isCancelled: false,
+
+    initWithCallback: function(aFunction, aDelay, aType) {
+      do_print("Starting timer, delay = " + aDelay);
+      this.callback = aFunction;
+      this.delay = aDelay;
+      this.type = aType;
+      // cancelled timers can be re-used
+      this.isCancelled = false;
+      waiter.resolve(this);
+    },
+    cancel: function() {
+      do_print("Cancelled mock timer");
+      this.callback = null;
+      this.delay = null;
+      this.type = null;
+      this.isCancelled = true;
+      // If initWithCallback was never called, resolve to let tests check for cancel
+      waiter.resolve(this);
+    }
+  };
+  DSContext.MakeTimer = () => {
+    do_print("Creating mock timer");
+    return mockTimer;
+  };
+  return waiter.promise;
+}
+
+/**
+ * Return a Promise<null> that resolves after the specified number of milliseconds
+ */
+function delay(aDelayMS) {
+  let deferred = Promise.defer();
+  do_timeout(aDelayMS, () => deferred.resolve(null));
+  return deferred.promise;
+}
+
+function run_test() {
+  run_next_test();
+}
+
+// Modify set data once, ask for save, make sure it saves cleanly
+add_task(function* test_basic_save_succeeds() {
+  setQuickMockTimer();
+  let tester = DeferredSaveTester();
+  let data = "Test 1 Data";
+
+  yield tester.save(data);
+  do_check_eq(tester.writtenData, data);
+  do_check_eq(1, tester.saver.totalSaves);
+});
+
+// Two saves called during the same event loop, both with callbacks
+// Make sure we save only the second version of the data
+add_task(function* test_two_saves() {
+  setQuickMockTimer();
+  let tester = DeferredSaveTester();
+  let firstCallback_happened = false;
+  let firstData = "Test first save";
+  let secondData = "Test second save";
+
+  // first save should not resolve until after the second one is called,
+  // so we can't just yield this promise
+  tester.save(firstData).then(count => {
+    do_check_eq(secondData, tester.writtenData);
+    do_check_false(firstCallback_happened);
+    firstCallback_happened = true;
+  }, do_report_unexpected_exception);
+
+  yield tester.save(secondData);
+  do_check_true(firstCallback_happened);
+  do_check_eq(secondData, tester.writtenData);
+  do_check_eq(1, tester.saver.totalSaves);
+});
+
+// Two saves called with a delay in between, both with callbacks
+// Make sure we save the second version of the data
+add_task(function* test_two_saves_delay() {
+  let timerPromise = setPromiseMockTimer();
+  let tester = DeferredSaveTester();
+  let firstCallback_happened = false;
+  let delayDone = false;
+
+  let firstData = "First data to save with delay";
+  let secondData = "Modified data to save with delay";
+
+  tester.save(firstData).then(count => {
+    do_check_false(firstCallback_happened);
+    do_check_true(delayDone);
+    do_check_eq(secondData, tester.writtenData);
+    firstCallback_happened = true;
+  }, do_report_unexpected_exception);
+
+  // Wait a short time to let async events possibly spawned by the
+  // first tester.save() to run
+  yield delay(2);
+  delayDone = true;
+  // request to save modified data
+  let saving = tester.save(secondData);
+  // Yield to wait for client code to set the timer
+  let activeTimer = yield timerPromise;
+  // and then trigger it
+  activeTimer.callback();
+  // now wait for the DeferredSave to finish saving
+  yield saving;
+  do_check_true(firstCallback_happened);
+  do_check_eq(secondData, tester.writtenData);
+  do_check_eq(1, tester.saver.totalSaves);
+  do_check_eq(0, tester.saver.overlappedSaves);
+});
+
+// Test case where OS.File immediately reports an error when the write begins
+// Also check that the "error" getter correctly returns the error
+// Then do a write that succeeds, and make sure the error is cleared
+add_task(function* test_error_immediate() {
+  let tester = DeferredSaveTester();
+  let testError = new Error("Forced failure");
+  function writeFail(aTester) {
+    aTester.waDeferred.reject(testError);
+  }
+
+  setQuickMockTimer();
+  yield tester.save("test_error_immediate", writeFail).then(
+    count => do_throw("Did not get expected error"),
+    error => do_check_eq(testError.message, error.message)
+    );
+  do_check_eq(testError, tester.lastError);
+
+  // This write should succeed and clear the error
+  yield tester.save("test_error_immediate succeeds");
+  do_check_eq(null, tester.lastError);
+  // The failed save attempt counts in our total
+  do_check_eq(2, tester.saver.totalSaves);
+});
+
+// Save one set of changes, then while the write is in progress, modify the
+// data two more times. Test that we re-write the dirty data exactly once
+// after the first write succeeds
+add_task(function* dirty_while_writing() {
+  let tester = DeferredSaveTester();
+  let firstData = "First data";
+  let secondData = "Second data";
+  let thirdData = "Third data";
+  let firstCallback_happened = false;
+  let secondCallback_happened = false;
+  let writeStarted = Promise.defer();
+
+  function writeCallback(aTester) {
+    writeStarted.resolve(aTester.waDeferred);
+  }
+
+  setQuickMockTimer();
+  do_print("First save");
+  tester.save(firstData, writeCallback).then(
+    count => {
+      do_check_false(firstCallback_happened);
+      do_check_false(secondCallback_happened);
+      do_check_eq(tester.writtenData, firstData);
+      firstCallback_happened = true;
+    }, do_report_unexpected_exception);
+
+  do_print("waiting for writer");
+  let writer = yield writeStarted.promise;
+  do_print("Write started");
+
+  // Delay a bit, modify the data and call saveChanges, delay a bit more,
+  // modify the data and call saveChanges again, another delay,
+  // then complete the in-progress write
+  yield delay(1);
+
+  tester.save(secondData).then(
+    count => {
+      do_check_true(firstCallback_happened);
+      do_check_false(secondCallback_happened);
+      do_check_eq(tester.writtenData, thirdData);
+      secondCallback_happened = true;
+    }, do_report_unexpected_exception);
+
+  // wait and then do the third change
+  yield delay(1);
+  let thirdWrite = tester.save(thirdData);
+
+  // wait a bit more and then finally finish the first write
+  yield delay(1);
+  writer.resolve(firstData.length);
+
+  // Now let everything else finish
+  yield thirdWrite;
+  do_check_true(firstCallback_happened);
+  do_check_true(secondCallback_happened);
+  do_check_eq(tester.writtenData, thirdData);
+  do_check_eq(2, tester.saver.totalSaves);
+  do_check_eq(1, tester.saver.overlappedSaves);
+});
+
+// A write callback for the OS.File.writeAtomic mock that rejects write attempts
+function disabled_write_callback(aTester) {
+  do_throw("Should not have written during clean flush");
+}
+
+// special write callback that disables itself to make sure
+// we don't try to write twice
+function write_then_disable(aTester) {
+  do_print("write_then_disable");
+  let length = aTester.writtenData.length;
+  aTester.writeHandler = disabled_write_callback;
+  do_execute_soon(() => aTester.waDeferred.resolve(length));
+}
+
+// Flush tests. First, do an ordinary clean save and then call flush;
+// there should not be another save
+add_task(function* flush_after_save() {
+  setQuickMockTimer();
+  let tester = DeferredSaveTester();
+  let dataToSave = "Flush after save";
+
+  yield tester.save(dataToSave);
+  yield tester.flush(disabled_write_callback);
+  do_check_eq(1, tester.saver.totalSaves);
+});
+
+// Flush while a write is in progress, but the in-memory data is clean
+add_task(function* flush_during_write() {
+  let tester = DeferredSaveTester();
+  let dataToSave = "Flush during write";
+  let firstCallback_happened = false;
+  let writeStarted = Promise.defer();
+
+  function writeCallback(aTester) {
+    writeStarted.resolve(aTester.waDeferred);
+  }
+
+  setQuickMockTimer();
+  tester.save(dataToSave, writeCallback).then(
+    count => {
+      do_check_false(firstCallback_happened);
+      firstCallback_happened = true;
+    }, do_report_unexpected_exception);
+
+  let writer = yield writeStarted.promise;
+
+  // call flush with the write callback disabled, delay a bit more, complete in-progress write
+  let flushing = tester.flush(disabled_write_callback);
+  yield delay(2);
+  writer.resolve(dataToSave.length);
+
+  // now wait for the flush to finish
+  yield flushing;
+  do_check_true(firstCallback_happened);
+  do_check_eq(1, tester.saver.totalSaves);
+});
+
+// Flush while dirty but write not in progress
+// The data written should be the value at the time
+// flush() is called, even if it is changed later
+add_task(function* flush_while_dirty() {
+  let timerPromise = setPromiseMockTimer();
+  let tester = DeferredSaveTester();
+  let firstData = "Flush while dirty, valid data";
+  let firstCallback_happened = false;
+
+  tester.save(firstData, write_then_disable).then(
+    count => {
+      do_check_false(firstCallback_happened);
+      firstCallback_happened = true;
+      do_check_eq(tester.writtenData, firstData);
+    }, do_report_unexpected_exception);
+
+  // Wait for the timer to be set, but don't trigger it so the write won't start
+  let activeTimer = yield timerPromise;
+
+  let flushing = tester.flush();
+
+  // Make sure the timer was cancelled
+  do_check_true(activeTimer.isCancelled);
+
+  // Also make sure that data changed after the flush call
+  // (even without a saveChanges() call) doesn't get written
+  tester.dataToSave = "Flush while dirty, invalid data";
+
+  yield flushing;
+  do_check_true(firstCallback_happened);
+  do_check_eq(tester.writtenData, firstData);
+  do_check_eq(1, tester.saver.totalSaves);
+});
+
+// And the grand finale - modify the data, start writing,
+// modify the data again so we're in progress and dirty,
+// then flush, then modify the data again
+// Data for the second write should be taken at the time
+// flush() is called, even if it is modified later
+add_task(function* flush_writing_dirty() {
+  let timerPromise = setPromiseMockTimer();
+  let tester = DeferredSaveTester();
+  let firstData = "Flush first pass data";
+  let secondData = "Flush second pass data";
+  let firstCallback_happened = false;
+  let secondCallback_happened = false;
+  let writeStarted = Promise.defer();
+
+  function writeCallback(aTester) {
+    writeStarted.resolve(aTester.waDeferred);
+  }
+
+  tester.save(firstData, writeCallback).then(
+    count => {
+      do_check_false(firstCallback_happened);
+      do_check_eq(tester.writtenData, firstData);
+      firstCallback_happened = true;
+    }, do_report_unexpected_exception);
+
+  // Trigger the timer callback as soon as the DeferredSave sets it
+  let activeTimer = yield timerPromise;
+  activeTimer.callback();
+  let writer = yield writeStarted.promise;
+  // the first write has started
+
+  // dirty the data and request another save
+  // after the second save completes, there should not be another write
+  tester.save(secondData, write_then_disable).then(
+    count => {
+      do_check_true(firstCallback_happened);
+      do_check_false(secondCallback_happened);
+      do_check_eq(tester.writtenData, secondData);
+      secondCallback_happened = true;
+    }, do_report_unexpected_exception);
+
+  let flushing = tester.flush(write_then_disable);
+  // Flush should have cancelled our timer
+  do_check_true(activeTimer.isCancelled);
+  tester.dataToSave = "Flush, invalid data: changed late";
+  // complete the first write
+  writer.resolve(firstData.length);
+  // now wait for the second write / flush to complete
+  yield flushing;
+  do_check_true(firstCallback_happened);
+  do_check_true(secondCallback_happened);
+  do_check_eq(tester.writtenData, secondData);
+  do_check_eq(2, tester.saver.totalSaves);
+  do_check_eq(1, tester.saver.overlappedSaves);
+});
+
+// A data provider callback that throws an error the first
+// time it is called, and a different error the second time
+// so that tests can (a) make sure the promise is rejected
+// with the error and (b) make sure the provider is only
+// called once in case of error
+const expectedDataError = "Failed to serialize data";
+var badDataError = null;
+function badDataProvider() {
+  let err = new Error(badDataError);
+  badDataError = "badDataProvider called twice";
+  throw err;
+}
+
+// Handle cases where data provider throws
+// First, throws during a normal save
+add_task(function* data_throw() {
+  setQuickMockTimer();
+  badDataError = expectedDataError;
+  let tester = DeferredSaveTester(badDataProvider);
+  yield tester.save("data_throw").then(
+    count => do_throw("Expected serialization failure"),
+    error => do_check_eq(error.message, expectedDataError));
+});
+
+// Now, throws during flush
+add_task(function* data_throw_during_flush() {
+  badDataError = expectedDataError;
+  let tester = DeferredSaveTester(badDataProvider);
+  let firstCallback_happened = false;
+
+  setPromiseMockTimer();
+  // Write callback should never be called
+  tester.save("data_throw_during_flush", disabled_write_callback).then(
+    count => do_throw("Expected serialization failure"),
+    error => {
+      do_check_false(firstCallback_happened);
+      do_check_eq(error.message, expectedDataError);
+      firstCallback_happened = true;
+    });
+
+  // flush() will cancel the timer
+  yield tester.flush(disabled_write_callback).then(
+    count => do_throw("Expected serialization failure"),
+    error => do_check_eq(error.message, expectedDataError)
+    );
+
+  do_check_true(firstCallback_happened);
+});
+
+// Try to reproduce race condition. The observed sequence of events:
+// saveChanges
+// start writing
+// saveChanges
+// finish writing (need to restart delayed timer)
+// saveChanges
+// flush
+// write starts
+// actually restart timer for delayed write
+// write completes
+// delayed timer goes off, throws error because DeferredSave has been torn down
+add_task(function* delay_flush_race() {
+  let timerPromise = setPromiseMockTimer();
+  let tester = DeferredSaveTester();
+  let firstData = "First save";
+  let secondData = "Second save";
+  let thirdData = "Third save";
+  let writeStarted = Promise.defer();
+
+  function writeCallback(aTester) {
+    writeStarted.resolve(aTester.waDeferred);
+  }
+
+  // This promise won't resolve until after writeStarted
+  let firstSave = tester.save(firstData, writeCallback);
+  (yield timerPromise).callback();
+
+  let writer = yield writeStarted.promise;
+  // the first write has started
+
+  // dirty the data and request another save
+  let secondSave = tester.save(secondData);
+
+  // complete the first write
+  writer.resolve(firstData.length);
+  yield firstSave;
+  do_check_eq(tester.writtenData, firstData);
+
+  tester.save(thirdData);
+  let flushing = tester.flush();
+
+  yield secondSave;
+  do_check_eq(tester.writtenData, thirdData);
+
+  yield flushing;
+  do_check_eq(tester.writtenData, thirdData);
+
+  // Our DeferredSave should not have a _timer here; if it
+  // does, the bug caused a reschedule
+  do_check_eq(null, tester.saver._timer);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_LightweightThemeManager.js b/toolkit/mozapps/webextensions/test/xpcshell/test_LightweightThemeManager.js
new file mode 100644
index 000000000..61a46b251
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_LightweightThemeManager.js
@@ -0,0 +1,598 @@
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+
+const MANDATORY = ["id", "name", "headerURL"];
+const OPTIONAL = ["footerURL", "textcolor", "accentcolor", "iconURL",
+                  "previewURL", "author", "description", "homepageURL",
+                  "updateURL", "version"];
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+function dummy(id) {
+  return {
+    id: id || Math.random().toString(),
+    name: Math.random().toString(),
+    headerURL: "http://lwttest.invalid/a.png",
+    footerURL: "http://lwttest.invalid/b.png",
+    textcolor: Math.random().toString(),
+    accentcolor: Math.random().toString()
+  };
+}
+
+function hasPermission(aAddon, aPerm) {
+  var perm = AddonManager["PERM_CAN_" + aPerm.toUpperCase()];
+  return !!(aAddon.permissions & perm);
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+  startupManager();
+
+  Services.prefs.setIntPref("lightweightThemes.maxUsedThemes", 8);
+
+  let {LightweightThemeManager: ltm} = Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm", {});
+
+  do_check_eq(typeof ltm, "object");
+  do_check_eq(typeof ltm.usedThemes, "object");
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+
+  ltm.previewTheme(dummy("preview0"));
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+
+  ltm.previewTheme(dummy("preview1"));
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+  ltm.resetPreview();
+
+  ltm.currentTheme = dummy("x0");
+  do_check_eq(ltm.usedThemes.length, 1);
+  do_check_eq(ltm.currentTheme.id, "x0");
+  do_check_eq(ltm.usedThemes[0].id, "x0");
+  do_check_eq(ltm.getUsedTheme("x0").id, "x0");
+
+  ltm.previewTheme(dummy("preview0"));
+  do_check_eq(ltm.usedThemes.length, 1);
+  do_check_eq(ltm.currentTheme.id, "x0");
+
+  ltm.resetPreview();
+  do_check_eq(ltm.usedThemes.length, 1);
+  do_check_eq(ltm.currentTheme.id, "x0");
+
+  ltm.currentTheme = dummy("x1");
+  do_check_eq(ltm.usedThemes.length, 2);
+  do_check_eq(ltm.currentTheme.id, "x1");
+  do_check_eq(ltm.usedThemes[1].id, "x0");
+
+  ltm.currentTheme = dummy("x2");
+  do_check_eq(ltm.usedThemes.length, 3);
+  do_check_eq(ltm.currentTheme.id, "x2");
+  do_check_eq(ltm.usedThemes[1].id, "x1");
+  do_check_eq(ltm.usedThemes[2].id, "x0");
+
+  ltm.currentTheme = dummy("x3");
+  ltm.currentTheme = dummy("x4");
+  ltm.currentTheme = dummy("x5");
+  ltm.currentTheme = dummy("x6");
+  ltm.currentTheme = dummy("x7");
+  do_check_eq(ltm.usedThemes.length, 8);
+  do_check_eq(ltm.currentTheme.id, "x7");
+  do_check_eq(ltm.usedThemes[1].id, "x6");
+  do_check_eq(ltm.usedThemes[7].id, "x0");
+
+  ltm.currentTheme = dummy("x8");
+  do_check_eq(ltm.usedThemes.length, 8);
+  do_check_eq(ltm.currentTheme.id, "x8");
+  do_check_eq(ltm.usedThemes[1].id, "x7");
+  do_check_eq(ltm.usedThemes[7].id, "x1");
+  do_check_eq(ltm.getUsedTheme("x0"), null);
+
+  ltm.forgetUsedTheme("nonexistent");
+  do_check_eq(ltm.usedThemes.length, 8);
+  do_check_neq(ltm.currentTheme, null);
+
+  ltm.forgetUsedTheme("x8");
+  do_check_eq(ltm.usedThemes.length, 7);
+  do_check_eq(ltm.currentTheme, null);
+  do_check_eq(ltm.usedThemes[0].id, "x7");
+  do_check_eq(ltm.usedThemes[6].id, "x1");
+
+  ltm.forgetUsedTheme("x7");
+  ltm.forgetUsedTheme("x6");
+  ltm.forgetUsedTheme("x5");
+  ltm.forgetUsedTheme("x4");
+  ltm.forgetUsedTheme("x3");
+  do_check_eq(ltm.usedThemes.length, 2);
+  do_check_eq(ltm.currentTheme, null);
+  do_check_eq(ltm.usedThemes[0].id, "x2");
+  do_check_eq(ltm.usedThemes[1].id, "x1");
+
+  ltm.currentTheme = dummy("x1");
+  do_check_eq(ltm.usedThemes.length, 2);
+  do_check_eq(ltm.currentTheme.id, "x1");
+  do_check_eq(ltm.usedThemes[0].id, "x1");
+  do_check_eq(ltm.usedThemes[1].id, "x2");
+
+  ltm.currentTheme = dummy("x2");
+  do_check_eq(ltm.usedThemes.length, 2);
+  do_check_eq(ltm.currentTheme.id, "x2");
+  do_check_eq(ltm.usedThemes[0].id, "x2");
+  do_check_eq(ltm.usedThemes[1].id, "x1");
+
+  ltm.currentTheme = ltm.getUsedTheme("x1");
+  do_check_eq(ltm.usedThemes.length, 2);
+  do_check_eq(ltm.currentTheme.id, "x1");
+  do_check_eq(ltm.usedThemes[0].id, "x1");
+  do_check_eq(ltm.usedThemes[1].id, "x2");
+
+  ltm.forgetUsedTheme("x1");
+  ltm.forgetUsedTheme("x2");
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+
+  // Use chinese name to test utf-8, for bug #541943
+  var chineseTheme = dummy("chinese0");
+  chineseTheme.name = "笢恅0";
+  chineseTheme.description = "笢恅1";
+  ltm.currentTheme = chineseTheme;
+  do_check_eq(ltm.usedThemes.length, 1);
+  do_check_eq(ltm.currentTheme.name, "笢恅0");
+  do_check_eq(ltm.currentTheme.description, "笢恅1");
+  do_check_eq(ltm.usedThemes[0].name, "笢恅0");
+  do_check_eq(ltm.usedThemes[0].description, "笢恅1");
+  do_check_eq(ltm.getUsedTheme("chinese0").name, "笢恅0");
+  do_check_eq(ltm.getUsedTheme("chinese0").description, "笢恅1");
+
+  // This name used to break the usedTheme JSON causing all LWTs to be lost
+  var chineseTheme1 = dummy("chinese1");
+  chineseTheme1.name = "眵昜湮桵蔗坌~郔乾";
+  chineseTheme1.description = "眵昜湮桵蔗坌~郔乾";
+  ltm.currentTheme = chineseTheme1;
+  do_check_neq(ltm.currentTheme, null);
+  do_check_eq(ltm.usedThemes.length, 2);
+  do_check_eq(ltm.currentTheme.name, "眵昜湮桵蔗坌~郔乾");
+  do_check_eq(ltm.currentTheme.description, "眵昜湮桵蔗坌~郔乾");
+  do_check_eq(ltm.usedThemes[1].name, "笢恅0");
+  do_check_eq(ltm.usedThemes[1].description, "笢恅1");
+  do_check_eq(ltm.usedThemes[0].name, "眵昜湮桵蔗坌~郔乾");
+  do_check_eq(ltm.usedThemes[0].description, "眵昜湮桵蔗坌~郔乾");
+
+  ltm.forgetUsedTheme("chinese0");
+  do_check_eq(ltm.usedThemes.length, 1);
+  do_check_neq(ltm.currentTheme, null);
+
+  ltm.forgetUsedTheme("chinese1");
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+
+  do_check_eq(ltm.parseTheme("invalid json"), null);
+  do_check_eq(ltm.parseTheme('"json string"'), null);
+
+  function roundtrip(data, secure) {
+    return ltm.parseTheme(JSON.stringify(data),
+                          "http" + (secure ? "s" : "") + "://lwttest.invalid/");
+  }
+
+  var data = dummy();
+  do_check_neq(roundtrip(data), null);
+  data.id = null;
+  do_check_eq(roundtrip(data), null);
+  data.id = 1;
+  do_check_eq(roundtrip(data), null);
+  data.id = 1.5;
+  do_check_eq(roundtrip(data), null);
+  data.id = true;
+  do_check_eq(roundtrip(data), null);
+  data.id = {};
+  do_check_eq(roundtrip(data), null);
+  data.id = [];
+  do_check_eq(roundtrip(data), null);
+
+  // Check whether parseTheme handles international characters right
+  var chineseTheme2 = dummy();
+  chineseTheme2.name = "眵昜湮桵蔗坌~郔乾";
+  chineseTheme2.description = "眵昜湮桵蔗坌~郔乾";
+  do_check_neq(roundtrip(chineseTheme2), null);
+  do_check_eq(roundtrip(chineseTheme2).name, "眵昜湮桵蔗坌~郔乾");
+  do_check_eq(roundtrip(chineseTheme2).description, "眵昜湮桵蔗坌~郔乾");
+
+  data = dummy();
+  data.unknownProperty = "Foo";
+  do_check_eq(typeof roundtrip(data).unknownProperty, "undefined");
+
+  data = dummy();
+  data.unknownURL = "http://lwttest.invalid/";
+  do_check_eq(typeof roundtrip(data).unknownURL, "undefined");
+
+  function roundtripSet(props, modify, test, secure) {
+    props.forEach(function (prop) {
+      var theme = dummy();
+      modify(theme, prop);
+      test(roundtrip(theme, secure), prop, theme);
+    });
+  }
+
+  roundtripSet(MANDATORY, function (theme, prop) {
+    delete theme[prop];
+  }, function (after) {
+    do_check_eq(after, null);
+  });
+
+  roundtripSet(OPTIONAL, function (theme, prop) {
+    delete theme[prop];
+  }, function (after) {
+    do_check_neq(after, null);
+  });
+
+  roundtripSet(MANDATORY, function (theme, prop) {
+    theme[prop] = "";
+  }, function (after) {
+    do_check_eq(after, null);
+  });
+
+  roundtripSet(OPTIONAL, function (theme, prop) {
+    theme[prop] = "";
+  }, function (after, prop) {
+    do_check_eq(typeof after[prop], "undefined");
+  });
+
+  roundtripSet(MANDATORY, function (theme, prop) {
+    theme[prop] = " ";
+  }, function (after) {
+    do_check_eq(after, null);
+  });
+
+  roundtripSet(OPTIONAL, function (theme, prop) {
+    theme[prop] = " ";
+  }, function (after, prop) {
+    do_check_neq(after, null);
+    do_check_eq(typeof after[prop], "undefined");
+  });
+
+  function non_urls(props) {
+    return props.filter(prop => !/URL$/.test(prop));
+  }
+
+  function urls(props) {
+    return props.filter(prop => /URL$/.test(prop));
+  }
+
+  roundtripSet(non_urls(MANDATORY.concat(OPTIONAL)), function (theme, prop) {
+    theme[prop] = prop;
+  }, function (after, prop, before) {
+    do_check_eq(after[prop], before[prop]);
+  });
+
+  roundtripSet(non_urls(MANDATORY.concat(OPTIONAL)), function (theme, prop) {
+    theme[prop] = " " + prop + "  ";
+  }, function (after, prop, before) {
+    do_check_eq(after[prop], before[prop].trim());
+  });
+
+  roundtripSet(urls(MANDATORY.concat(OPTIONAL)), function (theme, prop) {
+    theme[prop] = Math.random().toString();
+  }, function (after, prop, before) {
+    if (prop == "updateURL")
+      do_check_eq(typeof after[prop], "undefined");
+    else
+      do_check_eq(after[prop], "http://lwttest.invalid/" + before[prop]);
+  });
+
+  roundtripSet(urls(MANDATORY.concat(OPTIONAL)), function (theme, prop) {
+    theme[prop] = Math.random().toString();
+  }, function (after, prop, before) {
+    do_check_eq(after[prop], "https://lwttest.invalid/" + before[prop]);
+  }, true);
+
+  roundtripSet(urls(MANDATORY.concat(OPTIONAL)), function (theme, prop) {
+    theme[prop] = "https://sub.lwttest.invalid/" + Math.random().toString();
+  }, function (after, prop, before) {
+    do_check_eq(after[prop], before[prop]);
+  });
+
+  roundtripSet(urls(MANDATORY), function (theme, prop) {
+    theme[prop] = "ftp://lwttest.invalid/" + Math.random().toString();
+  }, function (after) {
+    do_check_eq(after, null);
+  });
+
+  roundtripSet(urls(OPTIONAL), function (theme, prop) {
+    theme[prop] = "ftp://lwttest.invalid/" + Math.random().toString();
+  }, function (after, prop) {
+    do_check_eq(typeof after[prop], "undefined");
+  });
+
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+
+  data = dummy();
+  delete data.name;
+  try {
+    ltm.currentTheme = data;
+    do_throw("Should have rejected a theme with no name");
+  }
+  catch (e) {
+    // Expected exception
+  }
+
+  data = dummy();
+  data.headerURL = "foo";
+  try {
+    ltm.currentTheme = data;
+    do_throw("Should have rejected a theme with a bad headerURL");
+  }
+  catch (e) {
+    // Expected exception
+  }
+
+  data = dummy();
+  data.headerURL = "ftp://lwtest.invalid/test.png";
+  try {
+    ltm.currentTheme = data;
+    do_throw("Should have rejected a theme with a non-http(s) headerURL");
+  }
+  catch (e) {
+    // Expected exception
+  }
+
+  data = dummy();
+  data.headerURL = "file:///test.png";
+  try {
+    ltm.currentTheme = data;
+    do_throw("Should have rejected a theme with a non-http(s) headerURL");
+  }
+  catch (e) {
+    // Expected exception
+  }
+
+  data = dummy();
+  data.updateURL = "file:///test.json";
+  ltm.setLocalTheme(data);
+  do_check_eq(ltm.usedThemes.length, 1);
+  do_check_eq(ltm.currentTheme.updateURL, undefined);
+  ltm.forgetUsedTheme(ltm.currentTheme.id);
+  do_check_eq(ltm.usedThemes.length, 0);
+
+  data = dummy();
+  data.headerURL = "file:///test.png";
+  ltm.setLocalTheme(data);
+  do_check_eq(ltm.usedThemes.length, 1);
+  do_check_eq(ltm.currentTheme.headerURL, "file:///test.png");
+  ltm.forgetUsedTheme(ltm.currentTheme.id);
+  do_check_eq(ltm.usedThemes.length, 0);
+
+  data = dummy();
+  data.headerURL = "ftp://lwtest.invalid/test.png";
+  try {
+    ltm.setLocalTheme(data);
+    do_throw("Should have rejected a theme with a non-http(s), non-file headerURL");
+  }
+  catch (e) {
+    // Expected exception
+  }
+
+  data = dummy();
+  delete data.id;
+  try {
+    ltm.currentTheme = data;
+    do_throw("Should have rejected a theme with no ID");
+  }
+  catch (e) {
+    // Expected exception
+  }
+
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+
+  // Force the theme into the prefs anyway
+  let prefs = Cc["@mozilla.org/preferences-service;1"].
+              getService(Ci.nsIPrefBranch);
+  let themes = [data];
+  prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(themes));
+  do_check_eq(ltm.usedThemes.length, 1);
+
+  // This should silently drop the bad theme.
+  ltm.currentTheme = dummy();
+  do_check_eq(ltm.usedThemes.length, 1);
+  ltm.forgetUsedTheme(ltm.currentTheme.id);
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+
+  // Add one broken and some working.
+  themes = [data, dummy("x1"), dummy("x2")];
+  prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(themes));
+  do_check_eq(ltm.usedThemes.length, 3);
+
+  // Switching to an existing theme should drop the bad theme.
+  ltm.currentTheme = ltm.getUsedTheme("x1");
+  do_check_eq(ltm.usedThemes.length, 2);
+  ltm.forgetUsedTheme("x1");
+  ltm.forgetUsedTheme("x2");
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+
+  prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(themes));
+  do_check_eq(ltm.usedThemes.length, 3);
+
+  // Forgetting an existing theme should drop the bad theme.
+  ltm.forgetUsedTheme("x1");
+  do_check_eq(ltm.usedThemes.length, 1);
+  ltm.forgetUsedTheme("x2");
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+
+  // Test whether a JSON set with setCharPref can be retrieved with usedThemes
+  ltm.currentTheme = dummy("x0");
+  ltm.currentTheme = dummy("x1");
+  prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(ltm.usedThemes));
+  do_check_eq(ltm.usedThemes.length, 2);
+  do_check_eq(ltm.currentTheme.id, "x1");
+  do_check_eq(ltm.usedThemes[1].id, "x0");
+  do_check_eq(ltm.usedThemes[0].id, "x1");
+
+  ltm.forgetUsedTheme("x0");
+  do_check_eq(ltm.usedThemes.length, 1);
+  do_check_neq(ltm.currentTheme, null);
+
+  ltm.forgetUsedTheme("x1");
+  do_check_eq(ltm.usedThemes.length, 0);
+  do_check_eq(ltm.currentTheme, null);
+
+  Services.prefs.clearUserPref("lightweightThemes.maxUsedThemes");
+
+  ltm.currentTheme = dummy("x1");
+  ltm.currentTheme = dummy("x2");
+  ltm.currentTheme = dummy("x3");
+  ltm.currentTheme = dummy("x4");
+  ltm.currentTheme = dummy("x5");
+  ltm.currentTheme = dummy("x6");
+  ltm.currentTheme = dummy("x7");
+  ltm.currentTheme = dummy("x8");
+  ltm.currentTheme = dummy("x9");
+  ltm.currentTheme = dummy("x10");
+  ltm.currentTheme = dummy("x11");
+  ltm.currentTheme = dummy("x12");
+  ltm.currentTheme = dummy("x13");
+  ltm.currentTheme = dummy("x14");
+  ltm.currentTheme = dummy("x15");
+  ltm.currentTheme = dummy("x16");
+  ltm.currentTheme = dummy("x17");
+  ltm.currentTheme = dummy("x18");
+  ltm.currentTheme = dummy("x19");
+  ltm.currentTheme = dummy("x20");
+  ltm.currentTheme = dummy("x21");
+  ltm.currentTheme = dummy("x22");
+  ltm.currentTheme = dummy("x23");
+  ltm.currentTheme = dummy("x24");
+  ltm.currentTheme = dummy("x25");
+  ltm.currentTheme = dummy("x26");
+  ltm.currentTheme = dummy("x27");
+  ltm.currentTheme = dummy("x28");
+  ltm.currentTheme = dummy("x29");
+  ltm.currentTheme = dummy("x30");
+
+  do_check_eq(ltm.usedThemes.length, 30);
+
+  ltm.currentTheme = dummy("x31");
+
+  do_check_eq(ltm.usedThemes.length, 30);
+  do_check_eq(ltm.getUsedTheme("x1"), null);
+
+  Services.prefs.setIntPref("lightweightThemes.maxUsedThemes", 15);
+
+  do_check_eq(ltm.usedThemes.length, 15);
+
+  Services.prefs.setIntPref("lightweightThemes.maxUsedThemes", 32);
+
+  ltm.currentTheme = dummy("x1");
+  ltm.currentTheme = dummy("x2");
+  ltm.currentTheme = dummy("x3");
+  ltm.currentTheme = dummy("x4");
+  ltm.currentTheme = dummy("x5");
+  ltm.currentTheme = dummy("x6");
+  ltm.currentTheme = dummy("x7");
+  ltm.currentTheme = dummy("x8");
+  ltm.currentTheme = dummy("x9");
+  ltm.currentTheme = dummy("x10");
+  ltm.currentTheme = dummy("x11");
+  ltm.currentTheme = dummy("x12");
+  ltm.currentTheme = dummy("x13");
+  ltm.currentTheme = dummy("x14");
+  ltm.currentTheme = dummy("x15");
+  ltm.currentTheme = dummy("x16");
+
+  ltm.currentTheme = dummy("x32");
+
+  do_check_eq(ltm.usedThemes.length, 32);
+
+  ltm.currentTheme = dummy("x33");
+
+  do_check_eq(ltm.usedThemes.length, 32);
+
+  Services.prefs.clearUserPref("lightweightThemes.maxUsedThemes");
+
+  do_check_eq(ltm.usedThemes.length, 30);
+
+  let usedThemes = ltm.usedThemes;
+  for (let theme of usedThemes) {
+    ltm.forgetUsedTheme(theme.id);
+  }
+
+  // Check builtInTheme functionality for Bug 1094821
+  do_check_eq(ltm._builtInThemes.toString(), "[object Map]");
+  do_check_eq([...ltm._builtInThemes.entries()].length, 0);
+  do_check_eq(ltm.usedThemes.length, 0);
+
+  ltm.addBuiltInTheme(dummy("builtInTheme0"));
+  do_check_eq([...ltm._builtInThemes].length, 1);
+  do_check_eq(ltm.usedThemes.length, 1);
+  do_check_eq(ltm.usedThemes[0].id, "builtInTheme0");
+
+  ltm.addBuiltInTheme(dummy("builtInTheme1"));
+  do_check_eq([...ltm._builtInThemes].length, 2);
+  do_check_eq(ltm.usedThemes.length, 2);
+  do_check_eq(ltm.usedThemes[1].id, "builtInTheme1");
+
+  // Clear all and then re-add
+  ltm.clearBuiltInThemes();
+  do_check_eq([...ltm._builtInThemes].length, 0);
+  do_check_eq(ltm.usedThemes.length, 0);
+
+  ltm.addBuiltInTheme(dummy("builtInTheme0"));
+  ltm.addBuiltInTheme(dummy("builtInTheme1"));
+  do_check_eq([...ltm._builtInThemes].length, 2);
+  do_check_eq(ltm.usedThemes.length, 2);
+
+  do_test_pending();
+
+  AddonManager.getAddonByID("builtInTheme0@personas.mozilla.org", builtInThemeAddon => {
+    // App specific theme can't be uninstalled or disabled,
+    // but can be enabled (since it isn't already applied).
+    do_check_eq(hasPermission(builtInThemeAddon, "uninstall"), false);
+    do_check_eq(hasPermission(builtInThemeAddon, "disable"), false);
+    do_check_eq(hasPermission(builtInThemeAddon, "enable"), true);
+
+    ltm.currentTheme = dummy("x0");
+    do_check_eq([...ltm._builtInThemes].length, 2);
+    do_check_eq(ltm.usedThemes.length, 3);
+    do_check_eq(ltm.usedThemes[0].id, "x0");
+    do_check_eq(ltm.currentTheme.id, "x0");
+    do_check_eq(ltm.usedThemes[1].id, "builtInTheme0");
+    do_check_eq(ltm.usedThemes[2].id, "builtInTheme1");
+
+    Assert.throws(() => { ltm.addBuiltInTheme(dummy("builtInTheme0")) },
+      "Exception is thrown adding a duplicate theme");
+    Assert.throws(() => { ltm.addBuiltInTheme("not a theme object") },
+      "Exception is thrown adding an invalid theme");
+
+    AddonManager.getAddonByID("x0@personas.mozilla.org", x0Addon => {
+      // Currently applied (non-app-specific) can be uninstalled or disabled,
+      // but can't be enabled (since it's already applied).
+      do_check_eq(hasPermission(x0Addon, "uninstall"), true);
+      do_check_eq(hasPermission(x0Addon, "disable"), true);
+      do_check_eq(hasPermission(x0Addon, "enable"), false);
+
+      ltm.forgetUsedTheme("x0");
+      do_check_eq(ltm.currentTheme, null);
+
+      // Removing the currently applied app specific theme should unapply it
+      ltm.currentTheme = ltm.getUsedTheme("builtInTheme0");
+      do_check_eq(ltm.currentTheme.id, "builtInTheme0");
+      do_check_true(ltm.forgetBuiltInTheme("builtInTheme0"));
+      do_check_eq(ltm.currentTheme, null);
+
+      do_check_eq([...ltm._builtInThemes].length, 1);
+      do_check_eq(ltm.usedThemes.length, 1);
+
+      do_check_true(ltm.forgetBuiltInTheme("builtInTheme1"));
+      do_check_false(ltm.forgetBuiltInTheme("not-an-existing-theme-id"));
+
+      do_check_eq([...ltm._builtInThemes].length, 0);
+      do_check_eq(ltm.usedThemes.length, 0);
+      do_check_eq(ltm.currentTheme, null);
+
+      do_test_finished();
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_ProductAddonChecker.js b/toolkit/mozapps/webextensions/test/xpcshell/test_ProductAddonChecker.js
new file mode 100644
index 000000000..6c562db65
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_ProductAddonChecker.js
@@ -0,0 +1,244 @@
+"use strict";
+
+Components.utils.import("resource://gre/modules/addons/ProductAddonChecker.jsm");
+Components.utils.import("resource://testing-common/httpd.js");
+Components.utils.import("resource://gre/modules/osfile.jsm");
+
+const LocalFile = new Components.Constructor("@mozilla.org/file/local;1", AM_Ci.nsIFile, "initWithPath");
+
+var testserver = new HttpServer();
+testserver.registerDirectory("/data/", do_get_file("data/productaddons"));
+testserver.start();
+var root = testserver.identity.primaryScheme + "://" +
+           testserver.identity.primaryHost + ":" +
+           testserver.identity.primaryPort + "/data/"
+
+/**
+ * Compares binary data of 2 arrays and returns true if they are the same
+ *
+ * @param arr1 The first array to compare
+ * @param arr2 The second array to compare
+*/
+function compareBinaryData(arr1, arr2) {
+  do_check_eq(arr1.length, arr2.length);
+  for (let i = 0; i < arr1.length; i++) {
+    if (arr1[i] != arr2[i]) {
+      do_print("Data differs at index " + i +
+               ", arr1: " + arr1[i] + ", arr2: " + arr2[i]);
+      return false;
+    }
+  }
+  return true;
+}
+
+/**
+ * Reads a file's data and returns it
+ *
+ * @param file The file to read the data from
+ * @return array of bytes for the data in the file.
+*/
+function getBinaryFileData(file) {
+  let fileStream = AM_Cc["@mozilla.org/network/file-input-stream;1"].
+                   createInstance(AM_Ci.nsIFileInputStream);
+  // Open as RD_ONLY with default permissions.
+  fileStream.init(file, FileUtils.MODE_RDONLY, FileUtils.PERMS_FILE, 0);
+
+  let stream = AM_Cc["@mozilla.org/binaryinputstream;1"].
+               createInstance(AM_Ci.nsIBinaryInputStream);
+  stream.setInputStream(fileStream);
+  let bytes = stream.readByteArray(stream.available());
+  fileStream.close();
+  return bytes;
+}
+
+/**
+ * Compares binary data of 2 files and returns true if they are the same
+ *
+ * @param file1 The first file to compare
+ * @param file2 The second file to compare
+*/
+function compareFiles(file1, file2) {
+  return compareBinaryData(getBinaryFileData(file1), getBinaryFileData(file2));
+}
+
+add_task(function* test_404() {
+  let res = yield ProductAddonChecker.getProductAddonList(root + "404.xml");
+  do_check_true(res.usedFallback);
+});
+
+add_task(function* test_not_xml() {
+  let res = yield ProductAddonChecker.getProductAddonList(root + "bad.txt");
+  do_check_true(res.usedFallback);
+});
+
+add_task(function* test_invalid_xml() {
+  let res = yield ProductAddonChecker.getProductAddonList(root + "bad.xml");
+  do_check_true(res.usedFallback);
+});
+
+add_task(function* test_wrong_xml() {
+  let res = yield ProductAddonChecker.getProductAddonList(root + "bad2.xml");
+  do_check_true(res.usedFallback);
+});
+
+add_task(function* test_missing() {
+  let addons = yield ProductAddonChecker.getProductAddonList(root + "missing.xml");
+  do_check_eq(addons, null);
+});
+
+add_task(function* test_empty() {
+  let res = yield ProductAddonChecker.getProductAddonList(root + "empty.xml");
+  do_check_true(Array.isArray(res.gmpAddons));
+  do_check_eq(res.gmpAddons.length, 0);
+});
+
+add_task(function* test_good_xml() {
+  let res = yield ProductAddonChecker.getProductAddonList(root + "good.xml");
+  do_check_true(Array.isArray(res.gmpAddons));
+
+  // There are three valid entries in the XML
+  do_check_eq(res.gmpAddons.length, 5);
+
+  let addon = res.gmpAddons[0];
+  do_check_eq(addon.id, "test1");
+  do_check_eq(addon.URL, "http://example.com/test1.xpi");
+  do_check_eq(addon.hashFunction, undefined);
+  do_check_eq(addon.hashValue, undefined);
+  do_check_eq(addon.version, undefined);
+  do_check_eq(addon.size, undefined);
+
+  addon = res.gmpAddons[1];
+  do_check_eq(addon.id, "test2");
+  do_check_eq(addon.URL, "http://example.com/test2.xpi");
+  do_check_eq(addon.hashFunction, "md5");
+  do_check_eq(addon.hashValue, "djhfgsjdhf");
+  do_check_eq(addon.version, undefined);
+  do_check_eq(addon.size, undefined);
+
+  addon = res.gmpAddons[2];
+  do_check_eq(addon.id, "test3");
+  do_check_eq(addon.URL, "http://example.com/test3.xpi");
+  do_check_eq(addon.hashFunction, undefined);
+  do_check_eq(addon.hashValue, undefined);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.size, 45);
+
+  addon = res.gmpAddons[3];
+  do_check_eq(addon.id, "test4");
+  do_check_eq(addon.URL, undefined);
+  do_check_eq(addon.hashFunction, undefined);
+  do_check_eq(addon.hashValue, undefined);
+  do_check_eq(addon.version, undefined);
+  do_check_eq(addon.size, undefined);
+
+  addon = res.gmpAddons[4];
+  do_check_eq(addon.id, undefined);
+  do_check_eq(addon.URL, "http://example.com/test5.xpi");
+  do_check_eq(addon.hashFunction, undefined);
+  do_check_eq(addon.hashValue, undefined);
+  do_check_eq(addon.version, undefined);
+  do_check_eq(addon.size, undefined);
+});
+
+add_task(function* test_download_nourl() {
+  try {
+    let path = yield ProductAddonChecker.downloadAddon({});
+
+    yield OS.File.remove(path);
+    do_throw("Should not have downloaded a file with a missing url");
+  }
+  catch (e) {
+    do_check_true(true, "Should have thrown when downloading a file with a missing url.");
+  }
+});
+
+add_task(function* test_download_missing() {
+  try {
+    let path = yield ProductAddonChecker.downloadAddon({
+      URL: root + "nofile.xpi",
+    });
+
+    yield OS.File.remove(path);
+    do_throw("Should not have downloaded a missing file");
+  }
+  catch (e) {
+    do_check_true(true, "Should have thrown when downloading a missing file.");
+  }
+});
+
+add_task(function* test_download_noverify() {
+  let path = yield ProductAddonChecker.downloadAddon({
+    URL: root + "unsigned.xpi",
+  });
+
+  let stat = yield OS.File.stat(path);
+  do_check_false(stat.isDir);
+  do_check_eq(stat.size, 452)
+
+  do_check_true(compareFiles(do_get_file("data/productaddons/unsigned.xpi"), new LocalFile(path)));
+
+  yield OS.File.remove(path);
+});
+
+add_task(function* test_download_badsize() {
+  try {
+    let path = yield ProductAddonChecker.downloadAddon({
+      URL: root + "unsigned.xpi",
+      size: 400,
+    });
+
+    yield OS.File.remove(path);
+    do_throw("Should not have downloaded a file with a bad size");
+  }
+  catch (e) {
+    do_check_true(true, "Should have thrown when downloading a file with a bad size.");
+  }
+});
+
+add_task(function* test_download_badhashfn() {
+  try {
+    let path = yield ProductAddonChecker.downloadAddon({
+      URL: root + "unsigned.xpi",
+      hashFunction: "sha2567",
+      hashValue: "9b9abf7ddfc1a6d7ffc7e0247481dcc202363e4445ad3494fb22036f1698c7f3",
+    });
+
+    yield OS.File.remove(path);
+    do_throw("Should not have downloaded a file with a bad hash function");
+  }
+  catch (e) {
+    do_check_true(true, "Should have thrown when downloading a file with a bad hash function.");
+  }
+});
+
+add_task(function* test_download_badhash() {
+  try {
+    let path = yield ProductAddonChecker.downloadAddon({
+      URL: root + "unsigned.xpi",
+      hashFunction: "sha256",
+      hashValue: "8b9abf7ddfc1a6d7ffc7e0247481dcc202363e4445ad3494fb22036f1698c7f3",
+    });
+
+    yield OS.File.remove(path);
+    do_throw("Should not have downloaded a file with a bad hash");
+  }
+  catch (e) {
+    do_check_true(true, "Should have thrown when downloading a file with a bad hash.");
+  }
+});
+
+add_task(function* test_download_works() {
+  let path = yield ProductAddonChecker.downloadAddon({
+    URL: root + "unsigned.xpi",
+    size: 452,
+    hashFunction: "sha256",
+    hashValue: "9b9abf7ddfc1a6d7ffc7e0247481dcc202363e4445ad3494fb22036f1698c7f3",
+  });
+
+  let stat = yield OS.File.stat(path);
+  do_check_false(stat.isDir);
+
+  do_check_true(compareFiles(do_get_file("data/productaddons/unsigned.xpi"), new LocalFile(path)));
+
+  yield OS.File.remove(path);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_XPIStates.js b/toolkit/mozapps/webextensions/test/xpcshell/test_XPIStates.js
new file mode 100644
index 000000000..99ab8ab13
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_XPIStates.js
@@ -0,0 +1,299 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test that we only check manifest age for disabled extensions
+
+Components.utils.import("resource://gre/modules/Promise.jsm");
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+/* We want one add-on installed packed, and one installed unpacked
+ */
+
+function run_test() {
+  // Shut down the add-on manager after all tests run.
+  do_register_cleanup(promiseShutdownManager);
+  // Kick off the task-based tests...
+  run_next_test();
+}
+
+// Use bootstrap extensions so the changes will be immediate.
+// A packed extension, to be enabled
+writeInstallRDFToXPI({
+  id: "packed-enabled@tests.mozilla.org",
+  version: "1.0",
+  bootstrap: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }],
+  name: "Packed, Enabled",
+}, profileDir);
+
+// Packed, will be disabled
+writeInstallRDFToXPI({
+  id: "packed-disabled@tests.mozilla.org",
+  version: "1.0",
+  bootstrap: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }],
+  name: "Packed, Disabled",
+}, profileDir);
+
+// Unpacked, enabled
+writeInstallRDFToDir({
+  id: "unpacked-enabled@tests.mozilla.org",
+  version: "1.0",
+  bootstrap: true,
+  unpack: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }],
+  name: "Unpacked, Enabled",
+}, profileDir, undefined, "extraFile.js");
+
+
+// Unpacked, disabled
+writeInstallRDFToDir({
+  id: "unpacked-disabled@tests.mozilla.org",
+  version: "1.0",
+  bootstrap: true,
+  unpack: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }],
+  name: "Unpacked, disabled",
+}, profileDir, undefined, "extraFile.js");
+
+// Keep track of the last time stamp we've used, so that we can keep moving
+// it forward (if we touch two different files in the same add-on with the same
+// timestamp we may not consider the change significant)
+var lastTimestamp = Date.now();
+
+/*
+ * Helper function to touch a file and then test whether we detect the change.
+ * @param XS      The XPIState object.
+ * @param aPath   File path to touch.
+ * @param aChange True if we should notice the change, False if we shouldn't.
+ */
+function checkChange(XS, aPath, aChange) {
+  do_check_true(aPath.exists());
+  lastTimestamp += 10000;
+  do_print("Touching file " + aPath.path + " with " + lastTimestamp);
+  aPath.lastModifiedTime = lastTimestamp;
+  do_check_eq(XS.getInstallState(), aChange);
+  // Save the pref so we don't detect this change again
+  XS.save();
+}
+
+// Get a reference to the XPIState (loaded by startupManager) so we can unit test it.
+function getXS() {
+  let XPI = Components.utils.import("resource://gre/modules/addons/XPIProvider.jsm");
+  return XPI.XPIStates;
+}
+
+add_task(function* detect_touches() {
+  startupManager();
+  let [pe, pd, ue, ud] = yield promiseAddonsByIDs([
+         "packed-enabled@tests.mozilla.org",
+         "packed-disabled@tests.mozilla.org",
+         "unpacked-enabled@tests.mozilla.org",
+         "unpacked-disabled@tests.mozilla.org"
+         ]);
+
+  do_print("Disable test add-ons");
+  pd.userDisabled = true;
+  ud.userDisabled = true;
+
+  let XS = getXS();
+
+  // Should be no changes detected here, because everything should start out up-to-date.
+  do_check_false(XS.getInstallState());
+
+  let states = XS.getLocation("app-profile");
+
+  // State should correctly reflect enabled/disabled
+  do_check_true(states.get("packed-enabled@tests.mozilla.org").enabled);
+  do_check_false(states.get("packed-disabled@tests.mozilla.org").enabled);
+  do_check_true(states.get("unpacked-enabled@tests.mozilla.org").enabled);
+  do_check_false(states.get("unpacked-disabled@tests.mozilla.org").enabled);
+
+  // Touch various files and make sure the change is detected.
+
+  // We notice that a packed XPI is touched for an enabled add-on.
+  let peFile = profileDir.clone();
+  peFile.append("packed-enabled@tests.mozilla.org.xpi");
+  checkChange(XS, peFile, true);
+
+  // We should notice the packed XPI change for a disabled add-on too.
+  let pdFile = profileDir.clone();
+  pdFile.append("packed-disabled@tests.mozilla.org.xpi");
+  checkChange(XS, pdFile, true);
+
+  // We notice changing install.rdf for an enabled unpacked add-on.
+  let ueDir = profileDir.clone();
+  ueDir.append("unpacked-enabled@tests.mozilla.org");
+  let manifest = ueDir.clone();
+  manifest.append("install.rdf");
+  checkChange(XS, manifest, true);
+  // We also notice changing another file for enabled unpacked add-on.
+  let otherFile = ueDir.clone();
+  otherFile.append("extraFile.js");
+  checkChange(XS, otherFile, true);
+
+  // We notice changing install.rdf for a *disabled* unpacked add-on.
+  let udDir = profileDir.clone();
+  udDir.append("unpacked-disabled@tests.mozilla.org");
+  manifest = udDir.clone();
+  manifest.append("install.rdf");
+  checkChange(XS, manifest, true);
+  // Finally, the case we actually care about...
+  // We *don't* notice changing another file for disabled unpacked add-on.
+  otherFile = udDir.clone();
+  otherFile.append("extraFile.js");
+  checkChange(XS, otherFile, false);
+
+  /*
+   * When we enable an unpacked add-on that was modified while it was
+   * disabled, we reflect the new timestamp in the add-on DB (otherwise, we'll
+   * think it changed on next restart).
+   */
+  ud.userDisabled = false;
+  let xState = XS.getAddon("app-profile", ud.id);
+  do_check_true(xState.enabled);
+  do_check_eq(xState.scanTime, ud.updateDate.getTime());
+});
+
+/*
+ * Uninstalling bootstrap add-ons should immediately remove them from the
+ * extensions.xpiState preference.
+ */
+add_task(function* uninstall_bootstrap() {
+  let [pe, pd, ue, ud] = yield promiseAddonsByIDs([
+         "packed-enabled@tests.mozilla.org",
+         "packed-disabled@tests.mozilla.org",
+         "unpacked-enabled@tests.mozilla.org",
+         "unpacked-disabled@tests.mozilla.org"
+         ]);
+  pe.uninstall();
+  let xpiState = Services.prefs.getCharPref("extensions.xpiState");
+  do_check_false(xpiState.includes("\"packed-enabled@tests.mozilla.org\""));
+});
+
+/*
+ * Installing a restartless add-on should immediately add it to XPIState
+ */
+add_task(function* install_bootstrap() {
+  let XS = getXS();
+
+  let installer = yield new Promise((resolve, reject) =>
+    AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), resolve));
+
+  let promiseInstalled = new Promise((resolve, reject) => {
+    AddonManager.addInstallListener({
+      onInstallFailed: reject,
+      onInstallEnded: (install, newAddon) => resolve(newAddon)
+    });
+  });
+
+  installer.install();
+
+  let newAddon = yield promiseInstalled;
+  let xState = XS.getAddon("app-profile", newAddon.id);
+  do_check_true(!!xState);
+  do_check_true(xState.enabled);
+  do_check_eq(xState.scanTime, newAddon.updateDate.getTime());
+  newAddon.uninstall();
+});
+
+/*
+ * Installing an add-on that requires restart doesn't add to XPIState
+ * until after the restart; disable and enable happen immediately so that
+ * the next restart won't / will scan as necessary on the next restart,
+ * uninstalling it marks XPIState as disabled immediately
+ * and removes XPIState after restart.
+ */
+add_task(function* install_restart() {
+  let XS = getXS();
+
+  let installer = yield new Promise((resolve, reject) =>
+    AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_4"), resolve));
+
+  let promiseInstalled = new Promise((resolve, reject) => {
+    AddonManager.addInstallListener({
+      onInstallFailed: reject,
+      onInstallEnded: (install, newAddon) => resolve(newAddon)
+    });
+  });
+
+  installer.install();
+
+  let newAddon = yield promiseInstalled;
+  let newID = newAddon.id;
+  let xState = XS.getAddon("app-profile", newID);
+  do_check_false(xState);
+
+  // Now we restart the add-on manager, and we need to get the XPIState again
+  // because the add-on manager reloads it.
+  XS = null;
+  newAddon = null;
+  yield promiseRestartManager();
+  XS = getXS();
+
+  newAddon = yield promiseAddonByID(newID);
+  xState = XS.getAddon("app-profile", newID);
+  do_check_true(xState);
+  do_check_true(xState.enabled);
+  do_check_eq(xState.scanTime, newAddon.updateDate.getTime());
+
+  // Check that XPIState enabled flag is updated immediately,
+  // and doesn't change over restart.
+  newAddon.userDisabled = true;
+  do_check_false(xState.enabled);
+  XS = null;
+  newAddon = null;
+  yield promiseRestartManager();
+  XS = getXS();
+  xState = XS.getAddon("app-profile", newID);
+  do_check_true(xState);
+  do_check_false(xState.enabled);
+
+  newAddon = yield promiseAddonByID(newID);
+  newAddon.userDisabled = false;
+  do_check_true(xState.enabled);
+  XS = null;
+  newAddon = null;
+  yield promiseRestartManager();
+  XS = getXS();
+  xState = XS.getAddon("app-profile", newID);
+  do_check_true(xState);
+  do_check_true(xState.enabled);
+
+  // Uninstalling immediately marks XPIState disabled,
+  // removes state after restart.
+  newAddon = yield promiseAddonByID(newID);
+  newAddon.uninstall();
+  xState = XS.getAddon("app-profile", newID);
+  do_check_true(xState);
+  do_check_false(xState.enabled);
+
+  // Restart to finish uninstall.
+  XS = null;
+  newAddon = null;
+  yield promiseRestartManager();
+  XS = getXS();
+  xState = XS.getAddon("app-profile", newID);
+  do_check_false(xState);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_XPIcancel.js b/toolkit/mozapps/webextensions/test/xpcshell/test_XPIcancel.js
new file mode 100644
index 000000000..d733778a5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_XPIcancel.js
@@ -0,0 +1,66 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test the cancellable doing/done/cancelAll API in XPIProvider
+
+var scope = Components.utils.import("resource://gre/modules/addons/XPIProvider.jsm");
+var XPIProvider = scope.XPIProvider;
+
+function run_test() {
+  // Check that cancelling with nothing in progress doesn't blow up
+  XPIProvider.cancelAll();
+
+  // Check that a basic object gets cancelled
+  let getsCancelled = {
+    isCancelled: false,
+    cancel: function () {
+      if (this.isCancelled)
+        do_throw("Already cancelled");
+      this.isCancelled = true;
+    }
+  };
+  XPIProvider.doing(getsCancelled);
+  XPIProvider.cancelAll();
+  do_check_true(getsCancelled.isCancelled);
+
+  // Check that if we complete a cancellable, it doesn't get cancelled
+  let doesntGetCancelled = {
+    cancel: () => do_throw("This should not have been cancelled")
+  };
+  XPIProvider.doing(doesntGetCancelled);
+  do_check_true(XPIProvider.done(doesntGetCancelled));
+  XPIProvider.cancelAll();
+
+  // A cancellable that adds a cancellable
+  getsCancelled.isCancelled = false;
+  let addsAnother = {
+    isCancelled: false,
+    cancel: function () {
+      if (this.isCancelled)
+        do_throw("Already cancelled");
+      this.isCancelled = true;
+      XPIProvider.doing(getsCancelled);
+    }
+  }
+  XPIProvider.doing(addsAnother);
+  XPIProvider.cancelAll();
+  do_check_true(addsAnother.isCancelled);
+  do_check_true(getsCancelled.isCancelled);
+
+  // A cancellable that removes another. This assumes that Set() iterates in the
+  // order that members were added
+  let removesAnother = {
+    isCancelled: false,
+    cancel: function () {
+      if (this.isCancelled)
+        do_throw("Already cancelled");
+      this.isCancelled = true;
+      XPIProvider.done(doesntGetCancelled);
+    }
+  }
+  XPIProvider.doing(removesAnother);
+  XPIProvider.doing(doesntGetCancelled);
+  XPIProvider.cancelAll();
+  do_check_true(removesAnother.isCancelled);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_addon_path_service.js b/toolkit/mozapps/webextensions/test/xpcshell/test_addon_path_service.js
new file mode 100644
index 000000000..56ce3c614
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_addon_path_service.js
@@ -0,0 +1,38 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var service = Components.classes["@mozilla.org/addon-path-service;1"].getService(Components.interfaces.amIAddonPathService);
+
+function insert(path, value)
+{
+  service.insertPath("/test/" + path, value);
+}
+
+function find(path)
+{
+  return service.findAddonId("/test/" + path);
+}
+
+function run_test()
+{
+  insert("abc", "10");
+  insert("def", "11");
+  insert("axy", "12");
+  insert("defghij", "13");
+  insert("defghi", "14");
+
+  do_check_eq(find("abc"), "10");
+  do_check_eq(find("abc123"), "10");
+  do_check_eq(find("def"), "11");
+  do_check_eq(find("axy"), "12");
+  do_check_eq(find("axy1"), "12");
+  do_check_eq(find("defghij"), "13");
+  do_check_eq(find("abd"), "");
+  do_check_eq(find("x"), "");
+
+  insert("file:///home/billm/mozilla/in4/objdir-ff-dbg/dist/bin/browser/extensions/%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D/", "{972ce4c6-7e08-4474-a285-3208198ce6fd}");
+  insert("file:///home/billm/mozilla/addons/dl-helper-workspace/addon/", "{b9db16a4-6edc-47ec-a1f4-b86292ed211d}");
+
+  do_check_eq(find("file:///home/billm/mozilla/addons/dl-helper-workspace/addon/local/modules/medialist-manager.jsm"), "{b9db16a4-6edc-47ec-a1f4-b86292ed211d}");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_asyncBlocklistLoad.js b/toolkit/mozapps/webextensions/test/xpcshell/test_asyncBlocklistLoad.js
new file mode 100644
index 000000000..38e563979
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_asyncBlocklistLoad.js
@@ -0,0 +1,44 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* () {
+  let blocklist = AM_Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService().wrappedJSObject;
+  let scope = Components.utils.import("resource://gre/modules/osfile.jsm");
+
+  // sync -> async
+  blocklist._loadBlocklist();
+  do_check_true(blocklist._isBlocklistLoaded());
+  yield blocklist._preloadBlocklist();
+  do_check_false(blocklist._isBlocklistPreloaded());
+  blocklist._clear();
+
+  // async -> sync
+  yield blocklist._preloadBlocklist();
+  do_check_false(blocklist._isBlocklistLoaded());
+  do_check_true(blocklist._isBlocklistPreloaded());
+  blocklist._loadBlocklist();
+  do_check_true(blocklist._isBlocklistLoaded());
+  do_check_false(blocklist._isBlocklistPreloaded());
+  blocklist._clear();
+
+  // async -> sync -> async
+  let read = scope.OS.File.read;
+  scope.OS.File.read = function(...args) {
+    return new Promise((resolve, reject) => {
+      do_execute_soon(() => {
+        blocklist._loadBlocklist();
+        resolve(read(...args));
+      });
+    });
+  }
+
+  yield blocklist._preloadBlocklist();
+  do_check_true(blocklist._isBlocklistLoaded());
+  do_check_false(blocklist._isBlocklistPreloaded());
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_backgroundupdate.js b/toolkit/mozapps/webextensions/test/xpcshell/test_backgroundupdate.js
new file mode 100644
index 000000000..3890b76e1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_backgroundupdate.js
@@ -0,0 +1,126 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that background updates & notifications work as expected
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// register static files with server and interpolate port numbers in them
+mapFile("/data/test_backgroundupdate.rdf", testserver);
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+  startupManager();
+
+  do_test_pending();
+  run_test_1();
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+// Verify that with no add-ons installed the background update notifications get
+// called
+function run_test_1() {
+  AddonManager.getAddonsByTypes(["extension", "theme", "locale"], function(aAddons) {
+    do_check_eq(aAddons.length, 0);
+
+    Services.obs.addObserver(function() {
+      Services.obs.removeObserver(arguments.callee, "addons-background-update-complete");
+
+      do_execute_soon(run_test_2);
+    }, "addons-background-update-complete", false);
+
+    // Trigger the background update timer handler
+    gInternalManager.notify(null);
+  });
+}
+
+// Verify that with two add-ons installed both of which claim to have updates
+// available we get the notification after both updates attempted to start
+function run_test_2() {
+  writeInstallRDFForExtension({
+    id: "addon1@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "http://localhost:" + gPort + "/data/test_backgroundupdate.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 1",
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon2@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "http://localhost:" + gPort + "/data/test_backgroundupdate.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 2",
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon3@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 3",
+  }, profileDir);
+
+  // Background update uses a different pref, if set
+  Services.prefs.setCharPref("extensions.update.background.url",
+                             "http://localhost:" + gPort +"/data/test_backgroundupdate.rdf");
+  restartManager();
+
+  // Do hotfix checks
+  Services.prefs.setCharPref("extensions.hotfix.id", "hotfix@tests.mozilla.org");
+  Services.prefs.setCharPref("extensions.hotfix.url", "http://localhost:" + gPort + "/missing.rdf");
+
+  let installCount = 0;
+  let completeCount = 0;
+  let sawCompleteNotification = false;
+
+  Services.obs.addObserver(function() {
+    Services.obs.removeObserver(arguments.callee, "addons-background-update-complete");
+
+    do_check_eq(installCount, 3);
+    sawCompleteNotification = true;
+  }, "addons-background-update-complete", false);
+
+  AddonManager.addInstallListener({
+    onNewInstall: function(aInstall) {
+      installCount++;
+    },
+
+    onDownloadFailed: function(aInstall) {
+      completeCount++;
+      if (completeCount == 3) {
+        do_check_true(sawCompleteNotification);
+        end_test();
+      }
+    }
+  });
+
+  // Trigger the background update timer handler
+  gInternalManager.notify(null);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bad_json.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bad_json.js
new file mode 100644
index 000000000..d3ccf68f3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bad_json.js
@@ -0,0 +1,54 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that we rebuild the database correctly if it contains
+// JSON data that parses correctly but doesn't contain required fields
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending("Bad JSON");
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  // This addon will be auto-installed at startup
+  writeInstallRDFForExtension(addon1, profileDir);
+
+  startupManager();
+
+  shutdownManager();
+
+  // First startup/shutdown finished
+  // Replace the JSON store with something bogus
+  saveJSON({not: "what we expect to find"}, gExtensionsJSON);
+
+  startupManager(false);
+  // Retrieve an addon to force the database to rebuild
+  AddonManager.getAddonsByIDs([addon1.id], callback_soon(after_db_rebuild));
+}
+
+function after_db_rebuild([a1]) {
+  do_check_eq(a1.id, addon1.id);
+
+  shutdownManager();
+
+  // Make sure our JSON database has schemaVersion and our installed extension
+  let data = loadJSON(gExtensionsJSON);
+  do_check_true("schemaVersion" in data);
+  do_check_eq(data.addons[0].id, addon1.id);
+
+  do_test_finished("Bad JSON");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_badschema.js b/toolkit/mozapps/webextensions/test/xpcshell/test_badschema.js
new file mode 100644
index 000000000..6ebf088d6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_badschema.js
@@ -0,0 +1,404 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we rebuild something sensible from a database with a bad schema
+
+
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+// register static files with server and interpolate port numbers in them
+mapFile("/data/test_corrupt.rdf", testserver);
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+// Will be enabled
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will be disabled
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will get a compatibility update and be enabled
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 3",
+  updateURL: "http://localhost:" + gPort + "/data/test_corrupt.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Will get a compatibility update and be disabled
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 4",
+  updateURL: "http://localhost:" + gPort + "/data/test_corrupt.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Stays incompatible
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Enabled bootstrapped
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 6",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Disabled bootstrapped
+var addon7 = {
+  id: "addon7@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 7",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// The default theme
+var theme1 = {
+  id: "theme1@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 1",
+  internalName: "classic/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// The selected theme
+var theme2 = {
+  id: "theme2@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 2",
+  internalName: "test/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(addon7, profileDir);
+  writeInstallRDFForExtension(theme1, profileDir);
+  writeInstallRDFForExtension(theme2, profileDir);
+
+  // Create and configure the HTTP server.
+  testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+  // Startup the profile and setup the initial state
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([a2, a3, a4,
+                                                                      a7, t2]) {
+    // Set up the initial state
+    a2.userDisabled = true;
+    a4.userDisabled = true;
+    a7.userDisabled = true;
+    t2.userDisabled = false;
+    a3.findUpdates({
+      onUpdateFinished: function() {
+        a4.findUpdates({
+          onUpdateFinished: function() {
+            do_execute_soon(run_test_1);
+          }
+        }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+      }
+    }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+  });
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+function run_test_1() {
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([a1, a2, a3,
+                                                                      a4, a5, a6,
+                                                                      a7, t1, t2]) {
+    do_check_neq(a1, null);
+    do_check_true(a1.isActive);
+    do_check_false(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a2, null);
+    do_check_false(a2.isActive);
+    do_check_true(a2.userDisabled);
+    do_check_false(a2.appDisabled);
+    do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a3, null);
+    do_check_true(a3.isActive);
+    do_check_false(a3.userDisabled);
+    do_check_false(a3.appDisabled);
+    do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a4, null);
+    do_check_false(a4.isActive);
+    do_check_true(a4.userDisabled);
+    do_check_false(a4.appDisabled);
+    do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a5, null);
+    do_check_false(a5.isActive);
+    do_check_false(a5.userDisabled);
+    do_check_true(a5.appDisabled);
+    do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a6, null);
+    do_check_true(a6.isActive);
+    do_check_false(a6.userDisabled);
+    do_check_false(a6.appDisabled);
+    do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a7, null);
+    do_check_false(a7.isActive);
+    do_check_true(a7.userDisabled);
+    do_check_false(a7.appDisabled);
+    do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(t1, null);
+    do_check_false(t1.isActive);
+    do_check_true(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(t2, null);
+    do_check_true(t2.isActive);
+    do_check_false(t2.userDisabled);
+    do_check_false(t2.appDisabled);
+    do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_execute_soon(run_test_1_modified_db);
+  });
+}
+
+
+function run_test_1_modified_db() {
+    // After restarting the database won't be open so we can alter
+    // the schema
+    shutdownManager();
+    changeXPIDBVersion(100);
+    startupManager();
+
+    // Accessing the add-ons should open and recover the database. Since
+    // migration occurs everything should be recovered correctly
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon2@tests.mozilla.org",
+                                 "addon3@tests.mozilla.org",
+                                 "addon4@tests.mozilla.org",
+                                 "addon5@tests.mozilla.org",
+                                 "addon6@tests.mozilla.org",
+                                 "addon7@tests.mozilla.org",
+                                 "theme1@tests.mozilla.org",
+                                 "theme2@tests.mozilla.org"], function([a1, a2, a3,
+                                                                        a4, a5, a6,
+                                                                        a7, t1, t2]) {
+      do_check_neq(a1, null);
+      do_check_true(a1.isActive);
+      do_check_false(a1.userDisabled);
+      do_check_false(a1.appDisabled);
+      do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a2, null);
+      do_check_false(a2.isActive);
+      do_check_true(a2.userDisabled);
+      do_check_false(a2.appDisabled);
+      do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a3, null);
+      do_check_true(a3.isActive);
+      do_check_false(a3.userDisabled);
+      do_check_false(a3.appDisabled);
+      do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a4, null);
+      do_check_false(a4.isActive);
+      do_check_true(a4.userDisabled);
+      do_check_false(a4.appDisabled);
+      do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a5, null);
+      do_check_false(a5.isActive);
+      do_check_false(a5.userDisabled);
+      do_check_true(a5.appDisabled);
+      do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a6, null);
+      do_check_true(a6.isActive);
+      do_check_false(a6.userDisabled);
+      do_check_false(a6.appDisabled);
+      do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a7, null);
+      do_check_false(a7.isActive);
+      do_check_true(a7.userDisabled);
+      do_check_false(a7.appDisabled);
+      do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(t1, null);
+      do_check_false(t1.isActive);
+      do_check_true(t1.userDisabled);
+      do_check_false(t1.appDisabled);
+      do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(t2, null);
+      do_check_true(t2.isActive);
+      do_check_false(t2.userDisabled);
+      do_check_false(t2.appDisabled);
+      do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_execute_soon(run_test_1_after_rebuild);
+    });
+}
+
+function run_test_1_after_rebuild() {
+      restartManager();
+
+      AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                   "addon2@tests.mozilla.org",
+                                   "addon3@tests.mozilla.org",
+                                   "addon4@tests.mozilla.org",
+                                   "addon5@tests.mozilla.org",
+                                   "addon6@tests.mozilla.org",
+                                   "addon7@tests.mozilla.org",
+                                   "theme1@tests.mozilla.org",
+                                   "theme2@tests.mozilla.org"], function([a1, a2, a3,
+                                                                          a4, a5, a6,
+                                                                          a7, t1, t2]) {
+        do_check_neq(a1, null);
+        do_check_true(a1.isActive);
+        do_check_false(a1.userDisabled);
+        do_check_false(a1.appDisabled);
+        do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a2, null);
+        do_check_false(a2.isActive);
+        do_check_true(a2.userDisabled);
+        do_check_false(a2.appDisabled);
+        do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a3, null);
+        do_check_true(a3.isActive);
+        do_check_false(a3.userDisabled);
+        do_check_false(a3.appDisabled);
+        do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a4, null);
+        do_check_false(a4.isActive);
+        do_check_true(a4.userDisabled);
+        do_check_false(a4.appDisabled);
+        do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a5, null);
+        do_check_false(a5.isActive);
+        do_check_false(a5.userDisabled);
+        do_check_true(a5.appDisabled);
+        do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a6, null);
+        do_check_true(a6.isActive);
+        do_check_false(a6.userDisabled);
+        do_check_false(a6.appDisabled);
+        do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a7, null);
+        do_check_false(a7.isActive);
+        do_check_true(a7.userDisabled);
+        do_check_false(a7.appDisabled);
+        do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(t1, null);
+        do_check_false(t1.isActive);
+        do_check_true(t1.userDisabled);
+        do_check_false(t1.appDisabled);
+        do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(t2, null);
+        do_check_true(t2.isActive);
+        do_check_false(t2.userDisabled);
+        do_check_false(t2.appDisabled);
+        do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+
+        end_test();
+      });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_gfx.js b/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_gfx.js
new file mode 100644
index 000000000..cbcd5cb7e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_gfx.js
@@ -0,0 +1,157 @@
+const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+const TEST_APP_ID            = "xpcshell@tests.mozilla.org";
+
+
+const EVENT_NAME = "blocklist-data-gfxItems";
+
+const SAMPLE_GFX_RECORD = {
+  "driverVersionComparator": "LESS_THAN_OR_EQUAL",
+  "driverVersion": "8.17.12.5896",
+  "vendor": "0x10de",
+  "blockID": "g36",
+  "feature": "DIRECT3D_9_LAYERS",
+  "devices": ["0x0a6c", "geforce"],
+  "featureStatus": "BLOCKED_DRIVER_VERSION",
+  "last_modified": 1458035931837,
+  "os": "WINNT 6.1",
+  "id": "3f947f16-37c2-4e96-d356-78b26363729b",
+  "versionRange": {"minVersion": 0, "maxVersion": "*"}
+};
+
+
+function Blocklist() {
+  let blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService().wrappedJSObject;
+  blocklist._clear();
+  return blocklist;
+}
+
+
+function run_test() {
+  run_next_test();
+}
+
+
+add_task(function* test_sends_serialized_data() {
+  const blocklist = Blocklist();
+  blocklist._gfxEntries = [SAMPLE_GFX_RECORD];
+
+  const expected = "blockID:g36\tdevices:0x0a6c,geforce\tdriverVersion:8.17.12.5896\t" +
+                   "driverVersionComparator:LESS_THAN_OR_EQUAL\tfeature:DIRECT3D_9_LAYERS\t" +
+                   "featureStatus:BLOCKED_DRIVER_VERSION\tos:WINNT 6.1\tvendor:0x10de\t" +
+                   "versionRange:0,*";
+  let received;
+  const observe = (subject, topic, data) => { received = data };
+  Services.obs.addObserver(observe, EVENT_NAME, false);
+  blocklist._notifyObserversBlocklistGFX();
+  equal(received, expected);
+  Services.obs.removeObserver(observe, EVENT_NAME);
+});
+
+
+add_task(function* test_parsing_fails_if_devices_contains_comma() {
+  const input = "<blocklist xmlns=\"http://www.mozilla.org/2006/addons-blocklist\">" +
+  "<gfxItems>" +
+  " <gfxBlacklistEntry>" +
+  "   <devices>" +
+  "     <device>0x2,582</device>" +
+  "     <device>0x2782</device>" +
+  "   </devices>" +
+  " </gfxBlacklistEntry>" +
+  "</gfxItems>" +
+  "</blocklist>";
+  const blocklist = Blocklist();
+  blocklist._loadBlocklistFromString(input);
+  equal(blocklist._gfxEntries[0].devices.length, 1);
+  equal(blocklist._gfxEntries[0].devices[0], "0x2782");
+});
+
+
+add_task(function* test_empty_values_are_ignored() {
+  const input = "<blocklist xmlns=\"http://www.mozilla.org/2006/addons-blocklist\">" +
+  "<gfxItems>" +
+  " <gfxBlacklistEntry>" +
+  "   <os></os>" +
+  " </gfxBlacklistEntry>" +
+  "</gfxItems>" +
+  "</blocklist>";
+  const blocklist = Blocklist();
+  let received;
+  const observe = (subject, topic, data) => { received = data };
+  Services.obs.addObserver(observe, EVENT_NAME, false);
+  blocklist._loadBlocklistFromString(input);
+  ok(received.indexOf("os" < 0));
+  Services.obs.removeObserver(observe, EVENT_NAME);
+});
+
+add_task(function* test_empty_devices_are_ignored() {
+  const input = "<blocklist xmlns=\"http://www.mozilla.org/2006/addons-blocklist\">" +
+  "<gfxItems>" +
+  " <gfxBlacklistEntry>" +
+  "   <devices></devices>" +
+  " </gfxBlacklistEntry>" +
+  "</gfxItems>" +
+  "</blocklist>";
+  const blocklist = Blocklist();
+  let received;
+  const observe = (subject, topic, data) => { received = data };
+  Services.obs.addObserver(observe, EVENT_NAME, false);
+  blocklist._loadBlocklistFromString(input);
+  ok(received.indexOf("devices" < 0));
+  Services.obs.removeObserver(observe, EVENT_NAME);
+});
+
+add_task(function* test_version_range_default_values() {
+  const input = "<blocklist xmlns=\"http://www.mozilla.org/2006/addons-blocklist\">" +
+  "<gfxItems>" +
+  " <gfxBlacklistEntry>" +
+  "   <versionRange minVersion=\"13.0b2\" maxVersion=\"42.0\"/>" +
+  " </gfxBlacklistEntry>" +
+  " <gfxBlacklistEntry>" +
+  "   <versionRange maxVersion=\"2.0\"/>" +
+  " </gfxBlacklistEntry>" +
+  " <gfxBlacklistEntry>" +
+  "   <versionRange minVersion=\"1.0\"/>" +
+  " </gfxBlacklistEntry>" +
+  " <gfxBlacklistEntry>" +
+  "   <versionRange minVersion=\"  \"/>" +
+  " </gfxBlacklistEntry>" +
+  " <gfxBlacklistEntry>" +
+  "   <versionRange/>" +
+  " </gfxBlacklistEntry>" +
+  "</gfxItems>" +
+  "</blocklist>";
+  const blocklist = Blocklist();
+  blocklist._loadBlocklistFromString(input);
+  equal(blocklist._gfxEntries[0].versionRange.minVersion, "13.0b2");
+  equal(blocklist._gfxEntries[0].versionRange.maxVersion, "42.0");
+  equal(blocklist._gfxEntries[1].versionRange.minVersion, "0");
+  equal(blocklist._gfxEntries[1].versionRange.maxVersion, "2.0");
+  equal(blocklist._gfxEntries[2].versionRange.minVersion, "1.0");
+  equal(blocklist._gfxEntries[2].versionRange.maxVersion, "*");
+  equal(blocklist._gfxEntries[3].versionRange.minVersion, "0");
+  equal(blocklist._gfxEntries[3].versionRange.maxVersion, "*");
+  equal(blocklist._gfxEntries[4].versionRange.minVersion, "0");
+  equal(blocklist._gfxEntries[4].versionRange.maxVersion, "*");
+});
+
+add_task(function* test_blockid_attribute() {
+  const input = "<blocklist xmlns=\"http://www.mozilla.org/2006/addons-blocklist\">" +
+  "<gfxItems>" +
+  " <gfxBlacklistEntry blockID=\"g60\">" +
+  "   <vendor> 0x10de </vendor>" +
+  " </gfxBlacklistEntry>" +
+  " <gfxBlacklistEntry>" +
+  "   <feature> DIRECT3D_9_LAYERS </feature>" +
+  " </gfxBlacklistEntry>" +
+  "</gfxItems>" +
+  "</blocklist>";
+  const blocklist = Blocklist();
+  blocklist._loadBlocklistFromString(input);
+  equal(blocklist._gfxEntries[0].blockID, "g60");
+  ok(!blocklist._gfxEntries[1].hasOwnProperty("blockID"));
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_metadata_filters.js b/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_metadata_filters.js
new file mode 100644
index 000000000..5befa6fa0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_metadata_filters.js
@@ -0,0 +1,147 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests blocking of extensions by ID, name, creator, homepageURL, updateURL
+// and RegExps for each. See bug 897735.
+
+var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+const URI_EXTENSION_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+Cu.import("resource://testing-common/httpd.js");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+// register static files with server and interpolate port numbers in them
+mapFile("/data/test_blocklist_metadata_filters_1.xml", testserver);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// Don't need the full interface, attempts to call other methods will just
+// throw which is just fine
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, args) {
+    // Should be called to list the newly blocklisted items
+    do_check_eq(url, URI_EXTENSION_BLOCKLIST_DIALOG);
+
+    // Simulate auto-disabling any softblocks
+    var list = args.wrappedJSObject.list;
+    list.forEach(function(aItem) {
+      if (!aItem.blocked)
+        aItem.disable = true;
+    });
+
+    // run the code after the blocklist is closed
+    Services.obs.notifyObservers(null, "addon-blocklist-closed", null);
+
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+function load_blocklist(aFile, aCallback) {
+  Services.obs.addObserver(function() {
+    Services.obs.removeObserver(arguments.callee, "blocklist-updated");
+
+    do_execute_soon(aCallback);
+  }, "blocklist-updated", false);
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + aFile);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+function run_test() {
+  do_test_pending();
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  // Should get blocked by name
+  writeInstallRDFForExtension({
+    id: "block1@tests.mozilla.org",
+    version: "1.0",
+    name: "Mozilla Corp.",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  // Should get blocked by all the attributes.
+  writeInstallRDFForExtension({
+    id: "block2@tests.mozilla.org",
+    version: "1.0",
+    name: "Moz-addon",
+    creator: "Dangerous",
+    homepageURL: "www.extension.dangerous.com",
+    updateURL: "www.extension.dangerous.com/update.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  // Fails to get blocked because of a different ID even though other
+  // attributes match against a blocklist entry.
+  writeInstallRDFForExtension({
+    id: "block3@tests.mozilla.org",
+    version: "1.0",
+    name: "Moz-addon",
+    creator: "Dangerous",
+    homepageURL: "www.extensions.dangerous.com",
+    updateURL: "www.extension.dangerous.com/update.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["block1@tests.mozilla.org",
+                               "block2@tests.mozilla.org",
+                               "block3@tests.mozilla.org"], function([a1, a2, a3]) {
+    do_check_eq(a1.blocklistState, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+    do_check_eq(a2.blocklistState, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+    do_check_eq(a3.blocklistState, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+
+    run_test_1();
+  });
+}
+
+function run_test_1() {
+  load_blocklist("test_blocklist_metadata_filters_1.xml", function() {
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["block1@tests.mozilla.org",
+                                 "block2@tests.mozilla.org",
+                                 "block3@tests.mozilla.org"], function([a1, a2, a3]) {
+      do_check_eq(a1.blocklistState, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+      do_check_eq(a2.blocklistState, Ci.nsIBlocklistService.STATE_BLOCKED);
+      do_check_eq(a3.blocklistState, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+      end_test();
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_prefs.js b/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_prefs.js
new file mode 100644
index 000000000..41ef62f98
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_prefs.js
@@ -0,0 +1,148 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests resetting of preferences in blocklist entry when an add-on is blocked.
+// See bug 802434.
+
+var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+const URI_EXTENSION_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+XPCOMUtils.defineLazyGetter(this, "gPref", function bls_gPref() {
+  return Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefService).
+         QueryInterface(Ci.nsIPrefBranch);
+});
+
+Cu.import("resource://testing-common/httpd.js");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+// register static files with server and interpolate port numbers in them
+mapFile("/data/test_blocklist_prefs_1.xml", testserver);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// A window watcher to handle the blocklist UI.
+// Don't need the full interface, attempts to call other methods will just
+// throw which is just fine
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, args) {
+    // Should be called to list the newly blocklisted items
+    do_check_eq(url, URI_EXTENSION_BLOCKLIST_DIALOG);
+
+    // Simulate auto-disabling any softblocks
+    var list = args.wrappedJSObject.list;
+    list.forEach(function(aItem) {
+      if (!aItem.blocked)
+        aItem.disable = true;
+    });
+
+    // run the code after the blocklist is closed
+    Services.obs.notifyObservers(null, "addon-blocklist-closed", null);
+
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+function load_blocklist(aFile, aCallback) {
+  Services.obs.addObserver(function() {
+    Services.obs.removeObserver(arguments.callee, "blocklist-updated");
+
+    do_execute_soon(aCallback);
+  }, "blocklist-updated", false);
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + aFile);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+function run_test() {
+  do_test_pending();
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  // Add 2 extensions
+  writeInstallRDFForExtension({
+    id: "block1@tests.mozilla.org",
+    version: "1.0",
+    name: "Blocked add-on-1 with to-be-reset prefs",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "block2@tests.mozilla.org",
+    version: "1.0",
+    name: "Blocked add-on-2 with to-be-reset prefs",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  // Pre-set the preferences that we expect to get reset.
+  gPref.setIntPref("test.blocklist.pref1", 15);
+  gPref.setIntPref("test.blocklist.pref2", 15);
+  gPref.setBoolPref("test.blocklist.pref3", true);
+  gPref.setBoolPref("test.blocklist.pref4", true);
+
+  startupManager();
+
+  // Before blocklist is loaded.
+  AddonManager.getAddonsByIDs(["block1@tests.mozilla.org",
+                               "block2@tests.mozilla.org"], function([a1, a2]) {
+    do_check_eq(a1.blocklistState, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+    do_check_eq(a2.blocklistState, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+
+    do_check_eq(gPref.getIntPref("test.blocklist.pref1"), 15);
+    do_check_eq(gPref.getIntPref("test.blocklist.pref2"), 15);
+    do_check_eq(gPref.getBoolPref("test.blocklist.pref3"), true);
+    do_check_eq(gPref.getBoolPref("test.blocklist.pref4"), true);
+    run_test_1();
+  });
+}
+
+function run_test_1() {
+  load_blocklist("test_blocklist_prefs_1.xml", function() {
+    restartManager();
+
+    // Blocklist changes should have applied and the prefs must be reset.
+    AddonManager.getAddonsByIDs(["block1@tests.mozilla.org",
+                                 "block2@tests.mozilla.org"], function([a1, a2]) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.blocklistState, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+      do_check_neq(a2, null);
+      do_check_eq(a2.blocklistState, Ci.nsIBlocklistService.STATE_BLOCKED);
+
+      // All these prefs must be reset to defaults.
+      do_check_eq(gPref.prefHasUserValue("test.blocklist.pref1"), false);
+      do_check_eq(gPref.prefHasUserValue("test.blocklist.pref2"), false);
+      do_check_eq(gPref.prefHasUserValue("test.blocklist.pref3"), false);
+      do_check_eq(gPref.prefHasUserValue("test.blocklist.pref4"), false);
+      end_test();
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_regexp.js b/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_regexp.js
new file mode 100644
index 000000000..c89ccdef8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_blocklist_regexp.js
@@ -0,0 +1,114 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that blocklist entries using RegExp work as expected. This only covers
+// behavior specific to RegExp entries - general behavior is already tested
+// in test_blocklistchange.js.
+
+var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+const URI_EXTENSION_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+Cu.import("resource://testing-common/httpd.js");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+// register static files with server and interpolate port numbers in them
+mapFile("/data/test_blocklist_regexp_1.xml", testserver);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// Don't need the full interface, attempts to call other methods will just
+// throw which is just fine
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, args) {
+    // Should be called to list the newly blocklisted items
+    do_check_eq(url, URI_EXTENSION_BLOCKLIST_DIALOG);
+
+    // Simulate auto-disabling any softblocks
+    var list = args.wrappedJSObject.list;
+    list.forEach(function(aItem) {
+      if (!aItem.blocked)
+        aItem.disable = true;
+    });
+
+    // run the code after the blocklist is closed
+    Services.obs.notifyObservers(null, "addon-blocklist-closed", null);
+
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+
+function load_blocklist(aFile, aCallback) {
+  Services.obs.addObserver(function() {
+    Services.obs.removeObserver(arguments.callee, "blocklist-updated");
+
+    do_execute_soon(aCallback);
+  }, "blocklist-updated", false);
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + aFile);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+
+function run_test() {
+  do_test_pending();
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  writeInstallRDFForExtension({
+    id: "block1@tests.mozilla.org",
+    version: "1.0",
+    name: "RegExp blocked add-on",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["block1@tests.mozilla.org"], function([a1]) {
+    do_check_eq(a1.blocklistState, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+
+    run_test_1();
+  });
+}
+
+function run_test_1() {
+  load_blocklist("test_blocklist_regexp_1.xml", function() {
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["block1@tests.mozilla.org"], function([a1]) {
+      // Blocklist contains two entries that will match this addon - ensure
+      // that the first one is applied.
+      do_check_neq(a1, null);
+      do_check_eq(a1.blocklistState, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+
+      end_test();
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_blocklistchange.js b/toolkit/mozapps/webextensions/test/xpcshell/test_blocklistchange.js
new file mode 100644
index 000000000..d065f700d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_blocklistchange.js
@@ -0,0 +1,1305 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that changes that cause an add-on to become unblocked or blocked have
+// the right effect
+
+// The tests follow a mostly common pattern. First they start with the add-ons
+// unblocked, then they make a change that causes the add-ons to become blocked
+// then they make a similar change that keeps the add-ons blocked then they make
+// a change that unblocks the add-ons. Some tests skip the initial part and
+// start with add-ons detected as blocked.
+
+// softblock1 is enabled/disabled by the blocklist changes so its softDisabled
+// property should always match its userDisabled property
+
+// softblock2 gets manually enabled then disabled after it becomes blocked so
+// its softDisabled property should never become true after that
+
+// softblock3 does the same as softblock2 however it remains disabled
+
+// softblock4 is disabled while unblocked and so should never have softDisabled
+// set to true and stay userDisabled. This add-on is not used in tests that
+// start with add-ons blocked as it would be identical to softblock3
+
+// softblock5 is a theme. Currently themes just get disabled when they become
+// softblocked and have to be manually re-enabled if they become completely
+// unblocked (bug 657520)
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+var Cr = Components.results;
+
+const URI_EXTENSION_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+Cu.import("resource://gre/modules/NetUtil.jsm");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+
+// Allow insecure updates
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false)
+
+var testserver = createHttpServer();
+gPort = testserver.identity.primaryPort;
+
+// register static files with server and interpolate port numbers in them
+mapFile("/data/blocklistchange/addon_update1.rdf", testserver);
+mapFile("/data/blocklistchange/addon_update2.rdf", testserver);
+mapFile("/data/blocklistchange/addon_update3.rdf", testserver);
+mapFile("/data/blocklistchange/addon_change.xml", testserver);
+mapFile("/data/blocklistchange/app_update.xml", testserver);
+mapFile("/data/blocklistchange/blocklist_update1.xml", testserver);
+mapFile("/data/blocklistchange/blocklist_update2.xml", testserver);
+mapFile("/data/blocklistchange/manual_update.xml", testserver);
+
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+
+var default_theme = {
+  id: "default@tests.mozilla.org",
+  version: "1.0",
+  name: "Softblocked add-on",
+  internalName: "classic/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock1_1 = {
+  id: "softblock1@tests.mozilla.org",
+  version: "1.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update1.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock1_2 = {
+  id: "softblock1@tests.mozilla.org",
+  version: "2.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update2.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock1_3 = {
+  id: "softblock1@tests.mozilla.org",
+  version: "3.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update3.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock2_1 = {
+  id: "softblock2@tests.mozilla.org",
+  version: "1.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update1.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock2_2 = {
+  id: "softblock2@tests.mozilla.org",
+  version: "2.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update2.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock2_3 = {
+  id: "softblock2@tests.mozilla.org",
+  version: "3.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update3.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock3_1 = {
+  id: "softblock3@tests.mozilla.org",
+  version: "1.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update1.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock3_2 = {
+  id: "softblock3@tests.mozilla.org",
+  version: "2.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update2.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock3_3 = {
+  id: "softblock3@tests.mozilla.org",
+  version: "3.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update3.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock4_1 = {
+  id: "softblock4@tests.mozilla.org",
+  version: "1.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update1.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock4_2 = {
+  id: "softblock4@tests.mozilla.org",
+  version: "2.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update2.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock4_3 = {
+  id: "softblock4@tests.mozilla.org",
+  version: "3.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update3.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock5_1 = {
+  id: "softblock5@tests.mozilla.org",
+  version: "1.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update1.rdf",
+  internalName: "test/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock5_2 = {
+  id: "softblock5@tests.mozilla.org",
+  version: "2.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update2.rdf",
+  internalName: "test/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var softblock5_3 = {
+  id: "softblock5@tests.mozilla.org",
+  version: "3.0",
+  name: "Softblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update3.rdf",
+  internalName: "test/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var hardblock_1 = {
+  id: "hardblock@tests.mozilla.org",
+  version: "1.0",
+  name: "Hardblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update1.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var hardblock_2 = {
+  id: "hardblock@tests.mozilla.org",
+  version: "2.0",
+  name: "Hardblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update2.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var hardblock_3 = {
+  id: "hardblock@tests.mozilla.org",
+  version: "3.0",
+  name: "Hardblocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update3.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var regexpblock_1 = {
+  id: "regexpblock@tests.mozilla.org",
+  version: "1.0",
+  name: "RegExp-blocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update1.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var regexpblock_2 = {
+  id: "regexpblock@tests.mozilla.org",
+  version: "2.0",
+  name: "RegExp-blocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update2.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+var regexpblock_3 = {
+  id: "regexpblock@tests.mozilla.org",
+  version: "3.0",
+  name: "RegExp-blocked add-on",
+  updateURL: "http://localhost:" + gPort + "/data/blocklistchange/addon_update3.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+};
+
+const ADDON_IDS = ["softblock1@tests.mozilla.org",
+                   "softblock2@tests.mozilla.org",
+                   "softblock3@tests.mozilla.org",
+                   "softblock4@tests.mozilla.org",
+                   "softblock5@tests.mozilla.org",
+                   "hardblock@tests.mozilla.org",
+                   "regexpblock@tests.mozilla.org"];
+
+// Don't need the full interface, attempts to call other methods will just
+// throw which is just fine
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, openArgs) {
+    // Should be called to list the newly blocklisted items
+    do_check_eq(url, URI_EXTENSION_BLOCKLIST_DIALOG);
+
+    // Simulate auto-disabling any softblocks
+    var list = openArgs.wrappedJSObject.list;
+    list.forEach(function(aItem) {
+      if (!aItem.blocked)
+        aItem.disable = true;
+    });
+
+    // run the code after the blocklist is closed
+    Services.obs.notifyObservers(null, "addon-blocklist-closed", null);
+
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+var InstallConfirm = {
+  confirm: function(aWindow, aUrl, aInstalls, aInstallCount) {
+    aInstalls.forEach(function(aInstall) {
+      aInstall.install();
+    });
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.amIWebInstallPrompt)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+var InstallConfirmFactory = {
+  createInstance: function createInstance(outer, iid) {
+    if (outer != null)
+      throw Components.results.NS_ERROR_NO_AGGREGATION;
+    return InstallConfirm.QueryInterface(iid);
+  }
+};
+
+var registrar = Components.manager.QueryInterface(Components.interfaces.nsIComponentRegistrar);
+registrar.registerFactory(Components.ID("{f0863905-4dde-42e2-991c-2dc8209bc9ca}"),
+                          "Fake Install Prompt",
+                          "@mozilla.org/addons/web-install-prompt;1", InstallConfirmFactory);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function Pload_blocklist(aFile) {
+  let blocklist_updated = new Promise((resolve, reject) => {
+    Services.obs.addObserver(function() {
+      Services.obs.removeObserver(arguments.callee, "blocklist-updated");
+
+      resolve();
+    }, "blocklist-updated", false);
+  });
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" + gPort + "/data/blocklistchange/" + aFile);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+  return blocklist_updated;
+}
+
+// Does a background update check for add-ons and returns a promise that
+// resolves when any started installs complete
+function Pbackground_update() {
+  var installCount = 0;
+  var backgroundCheckCompleted = false;
+
+  let updated = new Promise((resolve, reject) => {
+    AddonManager.addInstallListener({
+      onNewInstall: function(aInstall) {
+        installCount++;
+      },
+
+      onInstallEnded: function(aInstall) {
+        installCount--;
+        // Wait until all started installs have completed
+        if (installCount)
+          return;
+
+        AddonManager.removeInstallListener(this);
+
+        // If the background check hasn't yet completed then let that call the
+        // callback when it is done
+        if (!backgroundCheckCompleted)
+          return;
+
+        resolve();
+      }
+    })
+
+    Services.obs.addObserver(function() {
+      Services.obs.removeObserver(arguments.callee, "addons-background-update-complete");
+      backgroundCheckCompleted = true;
+
+      // If any new installs have started then we'll call the callback once they
+      // are completed
+      if (installCount)
+        return;
+
+      resolve();
+    }, "addons-background-update-complete", false);
+  });
+
+  AddonManagerPrivate.backgroundUpdateCheck();
+  return updated;
+}
+
+// Manually updates the test add-ons to the given version
+function Pmanual_update(aVersion) {
+  let Pinstalls = [];
+  for (let name of ["soft1", "soft2", "soft3", "soft4", "soft5", "hard1", "regexp1"]) {
+    Pinstalls.push(new Promise((resolve, reject) => {
+      AddonManager.getInstallForURL("http://localhost:" + gPort + "/addons/blocklist_"
+                                       + name + "_" + aVersion + ".xpi",
+                                    resolve, "application/x-xpinstall");
+    }));
+  }
+
+  return Promise.all(Pinstalls).then(installs => {
+    let completePromises = [];
+    for (let install of installs) {
+      completePromises.push(new Promise(resolve => {
+        install.addListener({
+          onDownloadCancelled: resolve,
+          onInstallEnded: resolve
+        })
+      }));
+    }
+
+    // Use the default web installer to cancel/allow installs based on whether
+    // the add-on is valid or not.
+    let webInstaller = Cc["@mozilla.org/addons/web-install-listener;1"]
+                       .getService(Ci.amIWebInstallListener);
+    webInstaller.onWebInstallRequested(null, null, installs);
+
+    return Promise.all(completePromises);
+  });
+}
+
+// Checks that an add-ons properties match expected values
+function check_addon(aAddon, aExpectedVersion, aExpectedUserDisabled,
+                     aExpectedSoftDisabled, aExpectedState) {
+  do_check_neq(aAddon, null);
+  do_print("Testing " + aAddon.id + " version " + aAddon.version + " user "
+           + aAddon.userDisabled + " soft " + aAddon.softDisabled
+           + " perms " + aAddon.permissions);
+
+  do_check_eq(aAddon.version, aExpectedVersion);
+  do_check_eq(aAddon.blocklistState, aExpectedState);
+  do_check_eq(aAddon.userDisabled, aExpectedUserDisabled);
+  do_check_eq(aAddon.softDisabled, aExpectedSoftDisabled);
+  if (aAddon.softDisabled)
+    do_check_true(aAddon.userDisabled);
+
+  if (aExpectedState == Ci.nsIBlocklistService.STATE_BLOCKED) {
+    do_print("blocked, PERM_CAN_ENABLE " + aAddon.id);
+    do_check_false(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_print("blocked, PERM_CAN_DISABLE " + aAddon.id);
+    do_check_false(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_DISABLE));
+  }
+  else if (aAddon.userDisabled) {
+    do_print("userDisabled, PERM_CAN_ENABLE " + aAddon.id);
+    do_check_true(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_print("userDisabled, PERM_CAN_DISABLE " + aAddon.id);
+    do_check_false(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_DISABLE));
+  }
+  else {
+    do_print("other, PERM_CAN_ENABLE " + aAddon.id);
+    do_check_false(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_ENABLE));
+    if (aAddon.type != "theme") {
+      do_print("other, PERM_CAN_DISABLE " + aAddon.id);
+      do_check_true(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_DISABLE));
+    }
+  }
+  do_check_eq(aAddon.appDisabled, aExpectedState == Ci.nsIBlocklistService.STATE_BLOCKED);
+
+  let willBeActive = aAddon.isActive;
+  if (hasFlag(aAddon.pendingOperations, AddonManager.PENDING_DISABLE))
+    willBeActive = false;
+  else if (hasFlag(aAddon.pendingOperations, AddonManager.PENDING_ENABLE))
+    willBeActive = true;
+
+  if (aExpectedUserDisabled || aExpectedState == Ci.nsIBlocklistService.STATE_BLOCKED) {
+    do_check_false(willBeActive);
+  }
+  else {
+    do_check_true(willBeActive);
+  }
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+  run_next_test();
+}
+
+add_task(function* init() {
+  writeInstallRDFForExtension(default_theme, profileDir);
+  writeInstallRDFForExtension(softblock1_1, profileDir);
+  writeInstallRDFForExtension(softblock2_1, profileDir);
+  writeInstallRDFForExtension(softblock3_1, profileDir);
+  writeInstallRDFForExtension(softblock4_1, profileDir);
+  writeInstallRDFForExtension(softblock5_1, profileDir);
+  writeInstallRDFForExtension(hardblock_1, profileDir);
+  writeInstallRDFForExtension(regexpblock_1, profileDir);
+  startupManager();
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+  s4.userDisabled = true;
+  s5.userDisabled = false;
+});
+
+// Starts with add-ons unblocked and then switches application versions to
+// change add-ons to blocked and back
+add_task(function* run_app_update_test() {
+  do_print("Test: " + arguments.callee.name);
+  yield promiseRestartManager();
+  yield Pload_blocklist("app_update.xml");
+  yield promiseRestartManager();
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "test/1.0");
+});
+
+add_task(function* app_update_step_2() {
+  yield promiseRestartManager("2");
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+
+  s2.userDisabled = false;
+  s2.userDisabled = true;
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  s3.userDisabled = false;
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+});
+
+add_task(function* app_update_step_3() {
+  yield promiseRestartManager();
+
+  yield promiseRestartManager("2.5");
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+});
+
+add_task(function* app_update_step_4() {
+  yield promiseRestartManager("1");
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+
+  s1.userDisabled = false;
+  s2.userDisabled = false;
+  s5.userDisabled = false;
+});
+
+// Starts with add-ons unblocked and then switches application versions to
+// change add-ons to blocked and back. A DB schema change is faked to force a
+// rebuild when the application version changes
+add_task(function* run_app_update_schema_test() {
+  do_print("Test: " + arguments.callee.name);
+  yield promiseRestartManager();
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "test/1.0");
+});
+
+add_task(function* update_schema_2() {
+  yield promiseShutdownManager();
+
+  changeXPIDBVersion(100);
+  gAppInfo.version = "2";
+  startupManager(true);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+
+  s2.userDisabled = false;
+  s2.userDisabled = true;
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  s3.userDisabled = false;
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+});
+
+add_task(function* update_schema_3() {
+  yield promiseRestartManager();
+
+  yield promiseShutdownManager();
+  changeXPIDBVersion(100);
+  gAppInfo.version = "2.5";
+  startupManager(true);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+});
+
+add_task(function* update_schema_4() {
+  yield promiseShutdownManager();
+
+  changeXPIDBVersion(100);
+  startupManager(false);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+});
+
+add_task(function* update_schema_5() {
+  yield promiseShutdownManager();
+
+  changeXPIDBVersion(100);
+  gAppInfo.version = "1";
+  startupManager(true);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+
+  s1.userDisabled = false;
+  s2.userDisabled = false;
+  s5.userDisabled = false;
+});
+
+// Starts with add-ons unblocked and then loads new blocklists to change add-ons
+// to blocked and back again.
+add_task(function* run_blocklist_update_test() {
+  do_print("Test: " + arguments.callee.name + "\n");
+  yield Pload_blocklist("blocklist_update1.xml");
+  yield promiseRestartManager();
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "test/1.0");
+
+  yield Pload_blocklist("blocklist_update2.xml");
+  yield promiseRestartManager();
+
+  [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+
+  s2.userDisabled = false;
+  s2.userDisabled = true;
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  s3.userDisabled = false;
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+
+  yield promiseRestartManager();
+
+  yield Pload_blocklist("blocklist_update2.xml");
+  yield promiseRestartManager();
+
+  [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+
+  yield Pload_blocklist("blocklist_update1.xml");
+  yield promiseRestartManager();
+
+  [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+
+  s1.userDisabled = false;
+  s2.userDisabled = false;
+  s5.userDisabled = false;
+});
+
+// Starts with add-ons unblocked and then new versions are installed outside of
+// the app to change them to blocked and back again.
+add_task(function* run_addon_change_test() {
+  do_print("Test: " + arguments.callee.name + "\n");
+  yield Pload_blocklist("addon_change.xml");
+  yield promiseRestartManager();
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "test/1.0");
+});
+
+add_task(function* run_addon_change_2() {
+  yield promiseShutdownManager();
+
+  writeInstallRDFForExtension(softblock1_2, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock1_2.id), Date.now() + 10000);
+  writeInstallRDFForExtension(softblock2_2, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock2_2.id), Date.now() + 10000);
+  writeInstallRDFForExtension(softblock3_2, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock3_2.id), Date.now() + 10000);
+  writeInstallRDFForExtension(softblock4_2, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock4_2.id), Date.now() + 10000);
+  writeInstallRDFForExtension(softblock5_2, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock5_2.id), Date.now() + 10000);
+  writeInstallRDFForExtension(hardblock_2, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, hardblock_2.id), Date.now() + 10000);
+  writeInstallRDFForExtension(regexpblock_2, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, regexpblock_2.id), Date.now() + 10000);
+
+  startupManager(false);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "2.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "2.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "2.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "2.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "2.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "2.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "2.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+
+  s2.userDisabled = false;
+  s2.userDisabled = true;
+  check_addon(s2, "2.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  s3.userDisabled = false;
+  check_addon(s3, "2.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+});
+
+add_task(function* run_addon_change_3() {
+  yield promiseRestartManager();
+
+  yield promiseShutdownManager();
+
+  writeInstallRDFForExtension(softblock1_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock1_3.id), Date.now() + 20000);
+  writeInstallRDFForExtension(softblock2_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock2_3.id), Date.now() + 20000);
+  writeInstallRDFForExtension(softblock3_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock3_3.id), Date.now() + 20000);
+  writeInstallRDFForExtension(softblock4_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock4_3.id), Date.now() + 20000);
+  writeInstallRDFForExtension(softblock5_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock5_3.id), Date.now() + 20000);
+  writeInstallRDFForExtension(hardblock_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, hardblock_3.id), Date.now() + 20000);
+  writeInstallRDFForExtension(regexpblock_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, regexpblock_3.id), Date.now() + 20000);
+
+  startupManager(false);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "3.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "3.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "3.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "3.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "3.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "3.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "3.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+});
+
+add_task(function* run_addon_change_4() {
+  yield promiseShutdownManager();
+
+  writeInstallRDFForExtension(softblock1_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock1_1.id), Date.now() + 30000);
+  writeInstallRDFForExtension(softblock2_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock2_1.id), Date.now() + 30000);
+  writeInstallRDFForExtension(softblock3_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock3_1.id), Date.now() + 30000);
+  writeInstallRDFForExtension(softblock4_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock4_1.id), Date.now() + 30000);
+  writeInstallRDFForExtension(softblock5_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock5_1.id), Date.now() + 30000);
+  writeInstallRDFForExtension(hardblock_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, hardblock_1.id), Date.now() + 30000);
+  writeInstallRDFForExtension(regexpblock_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, regexpblock_1.id), Date.now() + 30000);
+
+  startupManager(false);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  do_check_eq(Services.prefs.getCharPref("general.skins.selectedSkin"), "classic/1.0");
+
+  s1.userDisabled = false;
+  s2.userDisabled = false;
+  s5.userDisabled = false;
+});
+
+// Starts with add-ons blocked and then new versions are installed outside of
+// the app to change them to unblocked.
+add_task(function* run_addon_change_2_test() {
+  do_print("Test: " + arguments.callee.name + "\n");
+  yield promiseShutdownManager();
+
+  getFileForAddon(profileDir, softblock1_1.id).remove(true);
+  getFileForAddon(profileDir, softblock2_1.id).remove(true);
+  getFileForAddon(profileDir, softblock3_1.id).remove(true);
+  getFileForAddon(profileDir, softblock4_1.id).remove(true);
+  getFileForAddon(profileDir, softblock5_1.id).remove(true);
+  getFileForAddon(profileDir, hardblock_1.id).remove(true);
+  getFileForAddon(profileDir, regexpblock_1.id).remove(true);
+
+  startupManager(false);
+  yield promiseShutdownManager();
+
+  writeInstallRDFForExtension(softblock1_2, profileDir);
+  writeInstallRDFForExtension(softblock2_2, profileDir);
+  writeInstallRDFForExtension(softblock3_2, profileDir);
+  writeInstallRDFForExtension(softblock4_2, profileDir);
+  writeInstallRDFForExtension(softblock5_2, profileDir);
+  writeInstallRDFForExtension(hardblock_2, profileDir);
+  writeInstallRDFForExtension(regexpblock_2, profileDir);
+
+  startupManager(false);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "2.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "2.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "2.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "2.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "2.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+
+  s2.userDisabled = false;
+  s2.userDisabled = true;
+  check_addon(s2, "2.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  s3.userDisabled = false;
+  check_addon(s3, "2.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+});
+
+add_task(function* addon_change_2_test_2() {
+  yield promiseRestartManager();
+
+  yield promiseShutdownManager();
+
+  writeInstallRDFForExtension(softblock1_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock1_3.id), Date.now() + 10000);
+  writeInstallRDFForExtension(softblock2_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock2_3.id), Date.now() + 10000);
+  writeInstallRDFForExtension(softblock3_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock3_3.id), Date.now() + 10000);
+  writeInstallRDFForExtension(softblock4_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock4_3.id), Date.now() + 10000);
+  writeInstallRDFForExtension(softblock5_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock5_3.id), Date.now() + 10000);
+  writeInstallRDFForExtension(hardblock_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, hardblock_3.id), Date.now() + 10000);
+  writeInstallRDFForExtension(regexpblock_3, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, regexpblock_3.id), Date.now() + 10000);
+
+  startupManager(false);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "3.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "3.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "3.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "3.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "3.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+});
+
+add_task(function* addon_change_2_test_3() {
+  yield promiseShutdownManager();
+
+  writeInstallRDFForExtension(softblock1_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock1_1.id), Date.now() + 20000);
+  writeInstallRDFForExtension(softblock2_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock2_1.id), Date.now() + 20000);
+  writeInstallRDFForExtension(softblock3_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock3_1.id), Date.now() + 20000);
+  writeInstallRDFForExtension(softblock4_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock4_1.id), Date.now() + 20000);
+  writeInstallRDFForExtension(softblock5_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, softblock5_1.id), Date.now() + 20000);
+  writeInstallRDFForExtension(hardblock_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, hardblock_1.id), Date.now() + 20000);
+  writeInstallRDFForExtension(regexpblock_1, profileDir);
+  setExtensionModifiedTime(getFileForAddon(profileDir, regexpblock_1.id), Date.now() + 20000);
+
+  startupManager(false);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+
+  s1.userDisabled = false;
+  s2.userDisabled = false;
+  s4.userDisabled = true;
+  s5.userDisabled = false;
+});
+
+// Add-ons are initially unblocked then attempts to upgrade to blocked versions
+// in the background which should fail
+add_task(function* run_background_update_test() {
+  do_print("Test: " + arguments.callee.name + "\n");
+  yield promiseRestartManager();
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+
+  yield Pbackground_update();
+  yield promiseRestartManager();
+
+  [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+});
+
+// Starts with add-ons blocked and then new versions are detected and installed
+// automatically for unblocked versions.
+add_task(function* run_background_update_2_test() {
+  do_print("Test: " + arguments.callee.name + "\n");
+  yield promiseShutdownManager();
+
+  getFileForAddon(profileDir, softblock1_1.id).remove(true);
+  getFileForAddon(profileDir, softblock2_1.id).remove(true);
+  getFileForAddon(profileDir, softblock3_1.id).remove(true);
+  getFileForAddon(profileDir, softblock4_1.id).remove(true);
+  getFileForAddon(profileDir, softblock5_1.id).remove(true);
+  getFileForAddon(profileDir, hardblock_1.id).remove(true);
+  getFileForAddon(profileDir, regexpblock_1.id).remove(true);
+
+  startupManager(false);
+  yield promiseShutdownManager();
+
+  writeInstallRDFForExtension(softblock1_3, profileDir);
+  writeInstallRDFForExtension(softblock2_3, profileDir);
+  writeInstallRDFForExtension(softblock3_3, profileDir);
+  writeInstallRDFForExtension(softblock4_3, profileDir);
+  writeInstallRDFForExtension(softblock5_3, profileDir);
+  writeInstallRDFForExtension(hardblock_3, profileDir);
+  writeInstallRDFForExtension(regexpblock_3, profileDir);
+
+  startupManager(false);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "3.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "3.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "3.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "3.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "3.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+
+  s2.userDisabled = false;
+  s2.userDisabled = true;
+  check_addon(s2, "3.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  s3.userDisabled = false;
+  check_addon(s3, "3.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+
+  yield promiseRestartManager();
+
+  yield Pbackground_update();
+  yield promiseRestartManager();
+
+  [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+
+  s1.userDisabled = false;
+  s2.userDisabled = false;
+  s4.userDisabled = true;
+  s5.userDisabled = true;
+});
+
+// Starts with add-ons blocked and then simulates the user upgrading them to
+// unblocked versions.
+add_task(function* run_manual_update_test() {
+  do_print("Test: " + arguments.callee.name + "\n");
+  yield promiseRestartManager();
+  yield Pload_blocklist("manual_update.xml");
+  yield promiseRestartManager();
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+
+  s2.userDisabled = false;
+  s2.userDisabled = true;
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  s3.userDisabled = false;
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+
+  yield promiseRestartManager();
+
+  yield Pmanual_update("2");
+  yield promiseRestartManager();
+
+  [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "2.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "2.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "2.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s4, "2.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s5, "2.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  // Can't manually update to a hardblocked add-on
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+
+  yield Pmanual_update("3");
+  yield promiseRestartManager();
+
+  [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "3.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "3.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "3.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s4, "3.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s5, "3.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "3.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "3.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+});
+
+// Starts with add-ons blocked and then new versions are installed outside of
+// the app to change them to unblocked.
+add_task(function* run_manual_update_2_test() {
+  do_print("Test: " + arguments.callee.name + "\n");
+  yield promiseShutdownManager();
+
+  getFileForAddon(profileDir, softblock1_1.id).remove(true);
+  getFileForAddon(profileDir, softblock2_1.id).remove(true);
+  getFileForAddon(profileDir, softblock3_1.id).remove(true);
+  getFileForAddon(profileDir, softblock4_1.id).remove(true);
+  getFileForAddon(profileDir, softblock5_1.id).remove(true);
+  getFileForAddon(profileDir, hardblock_1.id).remove(true);
+  getFileForAddon(profileDir, regexpblock_1.id).remove(true);
+
+  startupManager(false);
+  yield promiseShutdownManager();
+
+  writeInstallRDFForExtension(softblock1_1, profileDir);
+  writeInstallRDFForExtension(softblock2_1, profileDir);
+  writeInstallRDFForExtension(softblock3_1, profileDir);
+  writeInstallRDFForExtension(softblock4_1, profileDir);
+  writeInstallRDFForExtension(softblock5_1, profileDir);
+  writeInstallRDFForExtension(hardblock_1, profileDir);
+  writeInstallRDFForExtension(regexpblock_1, profileDir);
+
+  startupManager(false);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+
+  s2.userDisabled = false;
+  s2.userDisabled = true;
+  check_addon(s2, "1.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  s3.userDisabled = false;
+  check_addon(s3, "1.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  yield promiseRestartManager();
+
+  yield Pmanual_update("2");
+  yield promiseRestartManager();
+
+  [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "2.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "2.0", true, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "2.0", false, false, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  // Can't manually update to a hardblocked add-on
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+
+  yield promiseRestartManager();
+
+  yield Pmanual_update("3");
+  yield promiseRestartManager();
+
+  [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "3.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s2, "3.0", true, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(s3, "3.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(h, "3.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+  check_addon(r, "3.0", false, false, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+
+  s1.userDisabled = false;
+  s2.userDisabled = false;
+  s4.userDisabled = true;
+});
+
+// Uses the API to install blocked add-ons from the local filesystem
+add_task(function* run_local_install_test() {
+  do_print("Test: " + arguments.callee.name + "\n");
+  yield promiseShutdownManager();
+
+  getFileForAddon(profileDir, softblock1_1.id).remove(true);
+  getFileForAddon(profileDir, softblock2_1.id).remove(true);
+  getFileForAddon(profileDir, softblock3_1.id).remove(true);
+  getFileForAddon(profileDir, softblock4_1.id).remove(true);
+  getFileForAddon(profileDir, softblock5_1.id).remove(true);
+  getFileForAddon(profileDir, hardblock_1.id).remove(true);
+  getFileForAddon(profileDir, regexpblock_1.id).remove(true);
+
+  startupManager(false);
+
+  yield promiseInstallAllFiles([
+    do_get_file("addons/blocklist_soft1_1.xpi"),
+    do_get_file("addons/blocklist_soft2_1.xpi"),
+    do_get_file("addons/blocklist_soft3_1.xpi"),
+    do_get_file("addons/blocklist_soft4_1.xpi"),
+    do_get_file("addons/blocklist_soft5_1.xpi"),
+    do_get_file("addons/blocklist_hard1_1.xpi"),
+    do_get_file("addons/blocklist_regexp1_1.xpi")
+  ]);
+
+  let aInstalls = yield new Promise((resolve, reject) => {
+    AddonManager.getAllInstalls(resolve)
+  });
+  // Should have finished all installs without needing to restart
+  do_check_eq(aInstalls.length, 0);
+
+  let [s1, s2, s3, s4, s5, h, r] = yield promiseAddonsByIDs(ADDON_IDS);
+
+  check_addon(s1, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s2, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(s3, "1.0", true, true, Ci.nsIBlocklistService.STATE_SOFTBLOCKED);
+  check_addon(h, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+  check_addon(r, "1.0", false, false, Ci.nsIBlocklistService.STATE_BLOCKED);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap.js
new file mode 100644
index 000000000..ff58599bc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap.js
@@ -0,0 +1,1403 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const APP_STARTUP                     = 1;
+const APP_SHUTDOWN                    = 2;
+const ADDON_ENABLE                    = 3;
+const ADDON_DISABLE                   = 4;
+const ADDON_INSTALL                   = 5;
+const ADDON_UNINSTALL                 = 6;
+const ADDON_UPGRADE                   = 7;
+const ADDON_DOWNGRADE                 = 8;
+
+const ID1 = "bootstrap1@tests.mozilla.org";
+const ID2 = "bootstrap2@tests.mozilla.org";
+
+// This verifies that bootstrappable add-ons can be used without restarts.
+Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/Promise.jsm");
+
+// Enable loading extensions from the user scopes
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_USER);
+
+BootstrapMonitor.init();
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+const userExtDir = gProfD.clone();
+userExtDir.append("extensions2");
+userExtDir.append(gAppInfo.ID);
+registerDirectory("XREUSysExt", userExtDir.parent);
+
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver = new HttpServer();
+testserver.start(undefined);
+gPort = testserver.identity.primaryPort;
+
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+function getStartupReason() {
+  let info = BootstrapMonitor.started.get(ID1);
+  return info ? info.reason : undefined;
+}
+
+function getShutdownReason() {
+  let info = BootstrapMonitor.stopped.get(ID1);
+  return info ? info.reason : undefined;
+}
+
+function getInstallReason() {
+  let info = BootstrapMonitor.installed.get(ID1);
+  return info ? info.reason : undefined;
+}
+
+function getUninstallReason() {
+  let info = BootstrapMonitor.uninstalled.get(ID1);
+  return info ? info.reason : undefined;
+}
+
+function getStartupOldVersion() {
+  let info = BootstrapMonitor.started.get(ID1);
+  return info ? info.data.oldVersion : undefined;
+}
+
+function getShutdownNewVersion() {
+  let info = BootstrapMonitor.stopped.get(ID1);
+  return info ? info.data.newVersion : undefined;
+}
+
+function getInstallOldVersion() {
+  let info = BootstrapMonitor.installed.get(ID1);
+  return info ? info.data.oldVersion : undefined;
+}
+
+function getUninstallNewVersion() {
+  let info = BootstrapMonitor.uninstalled.get(ID1);
+  return info ? info.data.newVersion : undefined;
+}
+
+function do_check_bootstrappedPref(aCallback) {
+  let data = Services.prefs.getCharPref("extensions.bootstrappedAddons");
+  data = JSON.parse(data);
+
+  AddonManager.getAddonsByTypes(["extension"], function(aAddons) {
+    for (let addon of aAddons) {
+      if (!addon.id.endsWith("@tests.mozilla.org"))
+        continue;
+      if (!addon.isActive)
+        continue;
+      if (addon.operationsRequiringRestart != AddonManager.OP_NEEDS_RESTART_NONE)
+        continue;
+
+      do_check_true(addon.id in data);
+      let addonData = data[addon.id];
+      delete data[addon.id];
+
+      do_check_eq(addonData.version, addon.version);
+      do_check_eq(addonData.type, addon.type);
+      let file = addon.getResourceURI().QueryInterface(Components.interfaces.nsIFileURL).file;
+      do_check_eq(addonData.descriptor, file.persistentDescriptor);
+    }
+    do_check_eq(Object.keys(data).length, 0);
+
+    do_execute_soon(aCallback);
+  });
+}
+
+
+function run_test() {
+  do_test_pending();
+
+  startupManager();
+
+  do_check_false(gExtensionsJSON.exists());
+
+  do_check_false(gExtensionsINI.exists());
+
+  run_test_1();
+}
+
+// Tests that installing doesn't require a restart
+function run_test_1() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.type, "extension");
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Test Bootstrap 1");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_neq(install.addon.syncGUID, null);
+    do_check_true(install.addon.hasResource("install.rdf"));
+    do_check_true(install.addon.hasResource("bootstrap.js"));
+    do_check_false(install.addon.hasResource("foo.bar"));
+    do_check_eq(install.addon.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_INSTALL, 0);
+    do_check_not_in_crash_annotation(ID1, "1.0");
+
+    let addon = install.addon;
+
+    BootstrapMonitor.promiseAddonStartup(ID1).then(function() {
+      do_check_bootstrappedPref(function() {
+        check_test_1(addon.syncGUID);
+      });
+    });
+
+    prepare_test({
+      [ID1]: [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], function() {
+      do_check_true(addon.hasResource("install.rdf"));
+
+      // startup should not have been called yet.
+      BootstrapMonitor.checkAddonNotStarted(ID1);
+    });
+    install.install();
+  });
+}
+
+function check_test_1(installSyncGUID) {
+  do_check_false(gExtensionsINI.exists());
+
+  AddonManager.getAllInstalls(function(installs) {
+    // There should be no active installs now since the install completed and
+    // doesn't require a restart.
+    do_check_eq(installs.length, 0);
+
+    AddonManager.getAddonByID(ID1, function(b1) {
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "1.0");
+      do_check_neq(b1.syncGUID, null);
+      do_check_eq(b1.syncGUID, installSyncGUID);
+      do_check_false(b1.appDisabled);
+      do_check_false(b1.userDisabled);
+      do_check_true(b1.isActive);
+      do_check_false(b1.isSystem);
+      BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+      BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+      do_check_eq(getStartupReason(), ADDON_INSTALL);
+      do_check_eq(getStartupOldVersion(), undefined);
+      do_check_true(b1.hasResource("install.rdf"));
+      do_check_true(b1.hasResource("bootstrap.js"));
+      do_check_false(b1.hasResource("foo.bar"));
+      do_check_in_crash_annotation(ID1, "1.0");
+
+      let dir = do_get_addon_root_uri(profileDir, ID1);
+      do_check_eq(b1.getResourceURI("bootstrap.js").spec, dir + "bootstrap.js");
+
+      AddonManager.getAddonsWithOperationsByTypes(null, function(list) {
+        do_check_eq(list.length, 0);
+
+        do_execute_soon(run_test_2);
+      });
+    });
+  });
+}
+
+// Tests that disabling doesn't require a restart
+function run_test_2() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    prepare_test({
+      [ID1]: [
+        ["onDisabling", false],
+        "onDisabled"
+      ]
+    });
+
+    do_check_eq(b1.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_DISABLE, 0);
+    b1.userDisabled = true;
+    ensure_test_completed();
+
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_true(b1.userDisabled);
+    do_check_false(b1.isActive);
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonNotStarted(ID1);
+    do_check_eq(getShutdownReason(), ADDON_DISABLE);
+    do_check_eq(getShutdownNewVersion(), undefined);
+    do_check_not_in_crash_annotation(ID1, "1.0");
+
+    AddonManager.getAddonByID(ID1, function(newb1) {
+      do_check_neq(newb1, null);
+      do_check_eq(newb1.version, "1.0");
+      do_check_false(newb1.appDisabled);
+      do_check_true(newb1.userDisabled);
+      do_check_false(newb1.isActive);
+
+      do_check_bootstrappedPref(run_test_3);
+    });
+  });
+}
+
+// Test that restarting doesn't accidentally re-enable
+function run_test_3() {
+  shutdownManager();
+  BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+  BootstrapMonitor.checkAddonNotStarted(ID1);
+  do_check_eq(getShutdownReason(), ADDON_DISABLE);
+  do_check_eq(getShutdownNewVersion(), undefined);
+  startupManager(false);
+  BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+  BootstrapMonitor.checkAddonNotStarted(ID1);
+  do_check_eq(getShutdownReason(), ADDON_DISABLE);
+  do_check_eq(getShutdownNewVersion(), undefined);
+  do_check_not_in_crash_annotation(ID1, "1.0");
+
+  do_check_false(gExtensionsINI.exists());
+
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_true(b1.userDisabled);
+    do_check_false(b1.isActive);
+
+    do_check_bootstrappedPref(run_test_4);
+  });
+}
+
+// Tests that enabling doesn't require a restart
+function run_test_4() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    prepare_test({
+      [ID1]: [
+        ["onEnabling", false],
+        "onEnabled"
+      ]
+    });
+
+    do_check_eq(b1.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_ENABLE, 0);
+    b1.userDisabled = false;
+    ensure_test_completed();
+
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    do_check_eq(getStartupReason(), ADDON_ENABLE);
+    do_check_eq(getStartupOldVersion(), undefined);
+    do_check_in_crash_annotation(ID1, "1.0");
+
+    AddonManager.getAddonByID(ID1, function(newb1) {
+      do_check_neq(newb1, null);
+      do_check_eq(newb1.version, "1.0");
+      do_check_false(newb1.appDisabled);
+      do_check_false(newb1.userDisabled);
+      do_check_true(newb1.isActive);
+
+      do_check_bootstrappedPref(run_test_5);
+    });
+  });
+}
+
+// Tests that a restart shuts down and restarts the add-on
+function run_test_5() {
+  shutdownManager();
+  // By the time we've shut down, the database must have been written
+  do_check_true(gExtensionsJSON.exists());
+
+  BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+  BootstrapMonitor.checkAddonNotStarted(ID1);
+  do_check_eq(getShutdownReason(), APP_SHUTDOWN);
+  do_check_eq(getShutdownNewVersion(), undefined);
+  do_check_not_in_crash_annotation(ID1, "1.0");
+  startupManager(false);
+  BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+  do_check_eq(getStartupReason(), APP_STARTUP);
+  do_check_eq(getStartupOldVersion(), undefined);
+  do_check_in_crash_annotation(ID1, "1.0");
+
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+    do_check_false(isExtensionInAddonsList(profileDir, b1.id));
+
+    do_check_bootstrappedPref(run_test_6);
+  });
+}
+
+// Tests that installing an upgrade doesn't require a restart
+function run_test_6() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_2"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.type, "extension");
+    do_check_eq(install.version, "2.0");
+    do_check_eq(install.name, "Test Bootstrap 1");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+
+    BootstrapMonitor.promiseAddonStartup(ID1).then(check_test_6);
+    prepare_test({
+      [ID1]: [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], function() {
+    });
+    install.install();
+  });
+}
+
+function check_test_6() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "2.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+    BootstrapMonitor.checkAddonInstalled(ID1, "2.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "2.0");
+    do_check_eq(getStartupReason(), ADDON_UPGRADE);
+    do_check_eq(getInstallOldVersion(), 1);
+    do_check_eq(getStartupOldVersion(), 1);
+    do_check_eq(getShutdownReason(), ADDON_UPGRADE);
+    do_check_eq(getShutdownNewVersion(), 2);
+    do_check_eq(getUninstallNewVersion(), 2);
+    do_check_not_in_crash_annotation(ID1, "1.0");
+    do_check_in_crash_annotation(ID1, "2.0");
+
+    do_check_bootstrappedPref(run_test_7);
+  });
+}
+
+// Tests that uninstalling doesn't require a restart
+function run_test_7() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    prepare_test({
+      [ID1]: [
+        ["onUninstalling", false],
+        "onUninstalled"
+      ]
+    });
+
+    do_check_eq(b1.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_UNINSTALL, 0);
+    b1.uninstall();
+
+    do_check_bootstrappedPref(check_test_7);
+  });
+}
+
+function check_test_7() {
+  ensure_test_completed();
+  BootstrapMonitor.checkAddonNotInstalled(ID1);
+  BootstrapMonitor.checkAddonNotStarted(ID1);
+  do_check_eq(getShutdownReason(), ADDON_UNINSTALL);
+  do_check_eq(getShutdownNewVersion(), undefined);
+  do_check_not_in_crash_annotation(ID1, "2.0");
+
+  AddonManager.getAddonByID(ID1, callback_soon(function(b1) {
+    do_check_eq(b1, null);
+
+    restartManager();
+
+    AddonManager.getAddonByID(ID1, function(newb1) {
+      do_check_eq(newb1, null);
+
+      do_check_bootstrappedPref(run_test_8);
+    });
+  }));
+}
+
+// Test that a bootstrapped extension dropped into the profile loads properly
+// on startup and doesn't cause an EM restart
+function run_test_8() {
+  shutdownManager();
+
+  manuallyInstall(do_get_addon("test_bootstrap1_1"), profileDir,
+                  ID1);
+
+  startupManager(false);
+
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    do_check_eq(getStartupReason(), ADDON_INSTALL);
+    do_check_eq(getStartupOldVersion(), undefined);
+    do_check_in_crash_annotation(ID1, "1.0");
+
+    do_check_bootstrappedPref(run_test_9);
+  });
+}
+
+// Test that items detected as removed during startup get removed properly
+function run_test_9() {
+  shutdownManager();
+
+  manuallyUninstall(profileDir, ID1);
+  BootstrapMonitor.clear(ID1);
+
+  startupManager(false);
+
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_eq(b1, null);
+    do_check_not_in_crash_annotation(ID1, "1.0");
+
+    do_check_bootstrappedPref(run_test_10);
+  });
+}
+
+
+// Tests that installing a downgrade sends the right reason
+function run_test_10() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_2"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.type, "extension");
+    do_check_eq(install.version, "2.0");
+    do_check_eq(install.name, "Test Bootstrap 1");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(install.addon.hasResource("install.rdf"));
+    do_check_true(install.addon.hasResource("bootstrap.js"));
+    do_check_false(install.addon.hasResource("foo.bar"));
+    do_check_not_in_crash_annotation(ID1, "2.0");
+
+    BootstrapMonitor.promiseAddonStartup(ID1).then(check_test_10_pt1);
+    prepare_test({
+      [ID1]: [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], function() {
+      do_print("Waiting for startup of bootstrap1_2");
+    });
+    install.install();
+  });
+}
+
+function check_test_10_pt1() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "2.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+    BootstrapMonitor.checkAddonInstalled(ID1, "2.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "2.0");
+    do_check_eq(getStartupReason(), ADDON_INSTALL);
+    do_check_eq(getStartupOldVersion(), undefined);
+    do_check_true(b1.hasResource("install.rdf"));
+    do_check_true(b1.hasResource("bootstrap.js"));
+    do_check_false(b1.hasResource("foo.bar"));
+    do_check_in_crash_annotation(ID1, "2.0");
+
+    prepare_test({ }, [
+      "onNewInstall"
+    ]);
+
+    AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), function(install) {
+      ensure_test_completed();
+
+      do_check_neq(install, null);
+      do_check_eq(install.type, "extension");
+      do_check_eq(install.version, "1.0");
+      do_check_eq(install.name, "Test Bootstrap 1");
+      do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+
+      BootstrapMonitor.promiseAddonStartup(ID1).then(check_test_10_pt2);
+      prepare_test({
+        [ID1]: [
+          ["onInstalling", false],
+          "onInstalled"
+        ]
+      }, [
+        "onInstallStarted",
+        "onInstallEnded",
+      ], function() { });
+      install.install();
+    });
+  });
+}
+
+function check_test_10_pt2() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    do_check_eq(getStartupReason(), ADDON_DOWNGRADE);
+    do_check_eq(getInstallOldVersion(), 2);
+    do_check_eq(getStartupOldVersion(), 2);
+    do_check_eq(getShutdownReason(), ADDON_DOWNGRADE);
+    do_check_eq(getShutdownNewVersion(), 1);
+    do_check_eq(getUninstallNewVersion(), 1);
+    do_check_in_crash_annotation(ID1, "1.0");
+    do_check_not_in_crash_annotation(ID1, "2.0");
+
+    do_check_bootstrappedPref(run_test_11);
+  });
+}
+
+// Tests that uninstalling a disabled add-on still calls the uninstall method
+function run_test_11() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    prepare_test({
+      [ID1]: [
+        ["onDisabling", false],
+        "onDisabled",
+        ["onUninstalling", false],
+        "onUninstalled"
+      ]
+    });
+
+    b1.userDisabled = true;
+
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonNotStarted(ID1);
+    do_check_eq(getShutdownReason(), ADDON_DISABLE);
+    do_check_eq(getShutdownNewVersion(), undefined);
+    do_check_not_in_crash_annotation(ID1, "1.0");
+
+    b1.uninstall();
+
+    check_test_11();
+  });
+}
+
+function check_test_11() {
+  ensure_test_completed();
+  BootstrapMonitor.checkAddonNotInstalled(ID1);
+  BootstrapMonitor.checkAddonNotStarted(ID1);
+  do_check_not_in_crash_annotation(ID1, "1.0");
+
+  do_check_bootstrappedPref(run_test_12);
+}
+
+// Tests that bootstrapped extensions are correctly loaded even if the app is
+// upgraded at the same time
+function run_test_12() {
+  shutdownManager();
+
+  manuallyInstall(do_get_addon("test_bootstrap1_1"), profileDir,
+                  ID1);
+
+  startupManager(true);
+
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    do_check_eq(getStartupReason(), ADDON_INSTALL);
+    do_check_eq(getStartupOldVersion(), undefined);
+    do_check_in_crash_annotation(ID1, "1.0");
+
+    b1.uninstall();
+    do_execute_soon(test_12_restart);
+  });
+}
+
+function test_12_restart() {
+  restartManager();
+  do_check_bootstrappedPref(run_test_13);
+}
+
+
+// Tests that installing a bootstrapped extension with an invalid application
+// entry doesn't call it's startup method
+function run_test_13() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_3"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.type, "extension");
+    do_check_eq(install.version, "3.0");
+    do_check_eq(install.name, "Test Bootstrap 1");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_not_in_crash_annotation(ID1, "3.0");
+
+    prepare_test({
+      [ID1]: [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], callback_soon(check_test_13));
+    install.install();
+  });
+}
+
+function check_test_13() {
+  AddonManager.getAllInstalls(function(installs) {
+    // There should be no active installs now since the install completed and
+    // doesn't require a restart.
+    do_check_eq(installs.length, 0);
+
+    AddonManager.getAddonByID(ID1, function(b1) {
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "3.0");
+      do_check_true(b1.appDisabled);
+      do_check_false(b1.userDisabled);
+      do_check_false(b1.isActive);
+      BootstrapMonitor.checkAddonInstalled(ID1, "3.0"); // We call install even for disabled add-ons
+      BootstrapMonitor.checkAddonNotStarted(ID1);       // Should not have called startup though
+      do_check_not_in_crash_annotation(ID1, "3.0");
+
+      do_execute_soon(test_13_restart);
+    });
+  });
+}
+
+function test_13_restart() {
+  restartManager();
+
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "3.0");
+    do_check_true(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_false(b1.isActive);
+    BootstrapMonitor.checkAddonInstalled(ID1, "3.0"); // We call install even for disabled add-ons
+    BootstrapMonitor.checkAddonNotStarted(ID1);       // Should not have called startup though
+    do_check_not_in_crash_annotation(ID1, "3.0");
+
+    do_check_bootstrappedPref(function() {
+      b1.uninstall();
+      do_execute_soon(run_test_14);
+    });
+  });
+}
+
+// Tests that a bootstrapped extension with an invalid target application entry
+// does not get loaded when detected during startup
+function run_test_14() {
+  restartManager();
+
+  shutdownManager();
+
+  manuallyInstall(do_get_addon("test_bootstrap1_3"), profileDir,
+                  ID1);
+
+  startupManager(false);
+
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "3.0");
+    do_check_true(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_false(b1.isActive);
+    BootstrapMonitor.checkAddonInstalled(ID1, "3.0"); // We call install even for disabled add-ons
+    BootstrapMonitor.checkAddonNotStarted(ID1);       // Should not have called startup though
+    do_check_not_in_crash_annotation(ID1, "3.0");
+
+    do_check_bootstrappedPref(function() {
+      b1.uninstall();
+
+      run_test_15();
+    });
+  });
+}
+
+// Tests that upgrading a disabled bootstrapped extension still calls uninstall
+// and install but doesn't startup the new version
+function run_test_15() {
+  BootstrapMonitor.promiseAddonStartup(ID1).then(function test_15_after_startup() {
+    AddonManager.getAddonByID(ID1, function(b1) {
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "1.0");
+      do_check_false(b1.appDisabled);
+      do_check_false(b1.userDisabled);
+      do_check_true(b1.isActive);
+      do_check_false(b1.isSystem);
+      BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+      BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+
+      b1.userDisabled = true;
+      do_check_false(b1.isActive);
+      BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+      BootstrapMonitor.checkAddonNotStarted(ID1);
+
+      prepare_test({ }, [
+        "onNewInstall"
+      ]);
+
+      AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_2"), function(install) {
+        ensure_test_completed();
+
+        do_check_neq(install, null);
+        do_check_true(install.addon.userDisabled);
+
+        prepare_test({
+          [ID1]: [
+            ["onInstalling", false],
+            "onInstalled"
+          ]
+        }, [
+          "onInstallStarted",
+          "onInstallEnded",
+        ], callback_soon(check_test_15));
+        install.install();
+      });
+    });
+  });
+  installAllFiles([do_get_addon("test_bootstrap1_1")], function test_15_addon_installed() { });
+}
+
+function check_test_15() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "2.0");
+    do_check_false(b1.appDisabled);
+    do_check_true(b1.userDisabled);
+    do_check_false(b1.isActive);
+    BootstrapMonitor.checkAddonInstalled(ID1, "2.0");
+    BootstrapMonitor.checkAddonNotStarted(ID1);
+
+    do_check_bootstrappedPref(function() {
+      restartManager();
+
+      AddonManager.getAddonByID(ID1, callback_soon(function(b1_2) {
+        do_check_neq(b1_2, null);
+        do_check_eq(b1_2.version, "2.0");
+        do_check_false(b1_2.appDisabled);
+        do_check_true(b1_2.userDisabled);
+        do_check_false(b1_2.isActive);
+        BootstrapMonitor.checkAddonInstalled(ID1, "2.0");
+        BootstrapMonitor.checkAddonNotStarted(ID1);
+
+        b1_2.uninstall();
+
+        run_test_16();
+      }));
+    });
+  });
+}
+
+// Tests that bootstrapped extensions don't get loaded when in safe mode
+function run_test_16() {
+  BootstrapMonitor.promiseAddonStartup(ID1).then(function test_16_after_startup() {
+    AddonManager.getAddonByID(ID1, callback_soon(function(b1) {
+      // Should have installed and started
+      BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+      BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+      do_check_true(b1.isActive);
+      do_check_false(b1.isSystem);
+      do_check_eq(b1.iconURL, "chrome://foo/skin/icon.png");
+      do_check_eq(b1.aboutURL, "chrome://foo/content/about.xul");
+      do_check_eq(b1.optionsURL, "chrome://foo/content/options.xul");
+
+      shutdownManager();
+
+      // Should have stopped
+      BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+      BootstrapMonitor.checkAddonNotStarted(ID1);
+
+      gAppInfo.inSafeMode = true;
+      startupManager(false);
+
+      AddonManager.getAddonByID(ID1, callback_soon(function(b1_2) {
+        // Should still be stopped
+        BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+        BootstrapMonitor.checkAddonNotStarted(ID1);
+        do_check_false(b1_2.isActive);
+        do_check_eq(b1_2.iconURL, null);
+        do_check_eq(b1_2.aboutURL, null);
+        do_check_eq(b1_2.optionsURL, null);
+
+        shutdownManager();
+        gAppInfo.inSafeMode = false;
+        startupManager(false);
+
+        // Should have started
+        BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+        BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+
+        AddonManager.getAddonByID(ID1, function(b1_3) {
+          b1_3.uninstall();
+
+          do_execute_soon(run_test_17);
+        });
+      }));
+    }));
+  });
+  installAllFiles([do_get_addon("test_bootstrap1_1")], function() { });
+}
+
+// Check that a bootstrapped extension in a non-profile location is loaded
+function run_test_17() {
+  shutdownManager();
+
+  manuallyInstall(do_get_addon("test_bootstrap1_1"), userExtDir,
+                  ID1);
+
+  startupManager();
+
+  AddonManager.getAddonByID(ID1, function(b1) {
+    // Should have installed and started
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+
+    do_check_bootstrappedPref(run_test_18);
+  });
+}
+
+// Check that installing a new bootstrapped extension in the profile replaces
+// the existing one
+function run_test_18() {
+  BootstrapMonitor.promiseAddonStartup(ID1).then(function test_18_after_startup() {
+    AddonManager.getAddonByID(ID1, function(b1) {
+      // Should have installed and started
+      BootstrapMonitor.checkAddonInstalled(ID1, "2.0");
+      BootstrapMonitor.checkAddonStarted(ID1, "2.0");
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "2.0");
+      do_check_true(b1.isActive);
+      do_check_false(b1.isSystem);
+
+      do_check_eq(getShutdownReason(), ADDON_UPGRADE);
+      do_check_eq(getUninstallReason(), ADDON_UPGRADE);
+      do_check_eq(getInstallReason(), ADDON_UPGRADE);
+      do_check_eq(getStartupReason(), ADDON_UPGRADE);
+
+      do_check_eq(getShutdownNewVersion(), 2);
+      do_check_eq(getUninstallNewVersion(), 2);
+      do_check_eq(getInstallOldVersion(), 1);
+      do_check_eq(getStartupOldVersion(), 1);
+
+      do_check_bootstrappedPref(run_test_19);
+    });
+  });
+  installAllFiles([do_get_addon("test_bootstrap1_2")], function() { });
+}
+
+// Check that uninstalling the profile version reveals the non-profile one
+function run_test_19() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    // The revealed add-on gets activated asynchronously
+    prepare_test({
+      [ID1]: [
+        ["onUninstalling", false],
+        "onUninstalled",
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [], check_test_19);
+
+    b1.uninstall();
+  });
+}
+
+function check_test_19() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    // Should have reverted to the older version
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+
+    // TODO these reasons really should be ADDON_DOWNGRADE (bug 607818)
+    do_check_eq(getShutdownReason(), ADDON_UNINSTALL);
+    do_check_eq(getUninstallReason(), ADDON_UNINSTALL);
+    do_check_eq(getInstallReason(), ADDON_INSTALL);
+    do_check_eq(getStartupReason(), ADDON_INSTALL);
+
+    do_check_eq(getShutdownNewVersion(), undefined);
+    do_check_eq(getUninstallNewVersion(), undefined);
+    do_check_eq(getInstallOldVersion(), undefined);
+    do_check_eq(getStartupOldVersion(), undefined);
+
+    do_check_bootstrappedPref(run_test_20);
+  });
+}
+
+// Check that a new profile extension detected at startup replaces the non-profile
+// one
+function run_test_20() {
+  shutdownManager();
+
+  manuallyInstall(do_get_addon("test_bootstrap1_2"), profileDir,
+                  ID1);
+
+  startupManager();
+
+  AddonManager.getAddonByID(ID1, function(b1) {
+    // Should have installed and started
+    BootstrapMonitor.checkAddonInstalled(ID1, "2.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "2.0");
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "2.0");
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+
+    do_check_eq(getShutdownReason(), APP_SHUTDOWN);
+    do_check_eq(getUninstallReason(), ADDON_UPGRADE);
+    do_check_eq(getInstallReason(), ADDON_UPGRADE);
+    do_check_eq(getStartupReason(), APP_STARTUP);
+
+    do_check_eq(getShutdownNewVersion(), undefined);
+    do_check_eq(getUninstallNewVersion(), 2);
+    do_check_eq(getInstallOldVersion(), 1);
+    do_check_eq(getStartupOldVersion(), undefined);
+
+    do_execute_soon(run_test_21);
+  });
+}
+
+// Check that a detected removal reveals the non-profile one
+function run_test_21() {
+  shutdownManager();
+
+  do_check_eq(getShutdownReason(), APP_SHUTDOWN);
+  do_check_eq(getShutdownNewVersion(), undefined);
+
+  manuallyUninstall(profileDir, ID1);
+  BootstrapMonitor.clear(ID1);
+
+  startupManager();
+
+  AddonManager.getAddonByID(ID1, function(b1) {
+    // Should have installed and started
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+
+    // This won't be set as the bootstrap script was gone so we couldn't
+    // uninstall it properly
+    do_check_eq(getUninstallReason(), undefined);
+    do_check_eq(getUninstallNewVersion(), undefined);
+
+    do_check_eq(getInstallReason(), ADDON_DOWNGRADE);
+    do_check_eq(getInstallOldVersion(), 2);
+
+    do_check_eq(getStartupReason(), APP_STARTUP);
+    do_check_eq(getStartupOldVersion(), undefined);
+
+    do_check_bootstrappedPref(function() {
+      shutdownManager();
+
+      manuallyUninstall(userExtDir, ID1);
+      BootstrapMonitor.clear(ID1);
+
+      startupManager(false);
+      run_test_22();
+    });
+  });
+}
+
+// Check that an upgrade from the filesystem is detected and applied correctly
+function run_test_22() {
+  shutdownManager();
+
+  let file = manuallyInstall(do_get_addon("test_bootstrap1_1"), profileDir,
+                             ID1);
+
+  // Make it look old so changes are detected
+  setExtensionModifiedTime(file, file.lastModifiedTime - 5000);
+
+  startupManager();
+
+  AddonManager.getAddonByID(ID1, callback_soon(function(b1) {
+    // Should have installed and started
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_true(b1.isActive);
+    do_check_false(b1.isSystem);
+
+    shutdownManager();
+
+    do_check_eq(getShutdownReason(), APP_SHUTDOWN);
+    do_check_eq(getShutdownNewVersion(), undefined);
+
+    manuallyUninstall(profileDir, ID1);
+    BootstrapMonitor.clear(ID1);
+    manuallyInstall(do_get_addon("test_bootstrap1_2"), profileDir,
+                    ID1);
+
+    startupManager();
+
+    AddonManager.getAddonByID(ID1, function(b1_2) {
+      // Should have installed and started
+      BootstrapMonitor.checkAddonInstalled(ID1, "2.0");
+      BootstrapMonitor.checkAddonStarted(ID1, "2.0");
+      do_check_neq(b1_2, null);
+      do_check_eq(b1_2.version, "2.0");
+      do_check_true(b1_2.isActive);
+      do_check_false(b1_2.isSystem);
+
+      // This won't be set as the bootstrap script was gone so we couldn't
+      // uninstall it properly
+      do_check_eq(getUninstallReason(), undefined);
+      do_check_eq(getUninstallNewVersion(), undefined);
+
+      do_check_eq(getInstallReason(), ADDON_UPGRADE);
+      do_check_eq(getInstallOldVersion(), 1);
+      do_check_eq(getStartupReason(), APP_STARTUP);
+      do_check_eq(getStartupOldVersion(), undefined);
+
+      do_check_bootstrappedPref(function() {
+        b1_2.uninstall();
+
+        run_test_23();
+      });
+    });
+  }));
+}
+
+
+// Tests that installing from a URL doesn't require a restart
+function run_test_23() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_bootstrap1_1.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+
+    prepare_test({ }, [
+      "onDownloadStarted",
+      "onDownloadEnded"
+    ], function() {
+      do_check_eq(install.type, "extension");
+      do_check_eq(install.version, "1.0");
+      do_check_eq(install.name, "Test Bootstrap 1");
+      do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+      do_check_true(install.addon.hasResource("install.rdf"));
+      do_check_true(install.addon.hasResource("bootstrap.js"));
+      do_check_false(install.addon.hasResource("foo.bar"));
+      do_check_eq(install.addon.operationsRequiringRestart &
+                  AddonManager.OP_NEEDS_RESTART_INSTALL, 0);
+      do_check_not_in_crash_annotation(ID1, "1.0");
+
+      let addon = install.addon;
+      prepare_test({
+        [ID1]: [
+          ["onInstalling", false],
+          "onInstalled"
+        ]
+      }, [
+        "onInstallStarted",
+        "onInstallEnded",
+      ], function() {
+        do_check_true(addon.hasResource("install.rdf"));
+        do_check_bootstrappedPref(check_test_23);
+      });
+    });
+    install.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_23() {
+  AddonManager.getAllInstalls(function(installs) {
+    // There should be no active installs now since the install completed and
+    // doesn't require a restart.
+    do_check_eq(installs.length, 0);
+
+    AddonManager.getAddonByID(ID1, function(b1) {
+     do_execute_soon(function test_23_after_startup() {
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "1.0");
+      do_check_false(b1.appDisabled);
+      do_check_false(b1.userDisabled);
+      do_check_true(b1.isActive);
+      do_check_false(b1.isSystem);
+      BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+      BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+      do_check_eq(getStartupReason(), ADDON_INSTALL);
+      do_check_eq(getStartupOldVersion(), undefined);
+      do_check_true(b1.hasResource("install.rdf"));
+      do_check_true(b1.hasResource("bootstrap.js"));
+      do_check_false(b1.hasResource("foo.bar"));
+      do_check_in_crash_annotation(ID1, "1.0");
+
+      let dir = do_get_addon_root_uri(profileDir, ID1);
+      do_check_eq(b1.getResourceURI("bootstrap.js").spec, dir + "bootstrap.js");
+
+      AddonManager.getAddonsWithOperationsByTypes(null, callback_soon(function(list) {
+        do_check_eq(list.length, 0);
+
+        restartManager();
+        AddonManager.getAddonByID(ID1, callback_soon(function(b1_2) {
+          b1_2.uninstall();
+          restartManager();
+
+          testserver.stop(run_test_24);
+        }));
+      }));
+     });
+    });
+  });
+}
+
+// Tests that we recover from a broken preference
+function run_test_24() {
+  do_print("starting 24");
+
+  Promise.all([BootstrapMonitor.promiseAddonStartup(ID2),
+              promiseInstallAllFiles([do_get_addon("test_bootstrap1_1"), do_get_addon("test_bootstrap2_1")])])
+         .then(function test_24_pref() {
+    do_print("test 24 got prefs");
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    BootstrapMonitor.checkAddonInstalled(ID2, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID2, "1.0");
+
+    restartManager();
+
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    BootstrapMonitor.checkAddonInstalled(ID2, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID2, "1.0");
+
+    shutdownManager();
+
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonNotStarted(ID1);
+    BootstrapMonitor.checkAddonInstalled(ID2, "1.0");
+    BootstrapMonitor.checkAddonNotStarted(ID2);
+
+    // Break the preference
+    let bootstrappedAddons = JSON.parse(Services.prefs.getCharPref("extensions.bootstrappedAddons"));
+    bootstrappedAddons[ID1].descriptor += "foo";
+    Services.prefs.setCharPref("extensions.bootstrappedAddons", JSON.stringify(bootstrappedAddons));
+
+    startupManager(false);
+
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+    BootstrapMonitor.checkAddonInstalled(ID2, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID2, "1.0");
+
+    run_test_25();
+  });
+}
+
+// Tests that updating from a bootstrappable add-on to a normal add-on calls
+// the uninstall method
+function run_test_25() {
+  BootstrapMonitor.promiseAddonStartup(ID1).then(function test_25_after_pref() {
+      do_print("test 25 pref change detected");
+      BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+      BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+
+      installAllFiles([do_get_addon("test_bootstrap1_4")], function() {
+        // Needs a restart to complete this so the old version stays running
+        BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+        BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+
+        AddonManager.getAddonByID(ID1, callback_soon(function(b1) {
+          do_check_neq(b1, null);
+          do_check_eq(b1.version, "1.0");
+          do_check_true(b1.isActive);
+          do_check_false(b1.isSystem);
+          do_check_true(hasFlag(b1.pendingOperations, AddonManager.PENDING_UPGRADE));
+
+          restartManager();
+
+          BootstrapMonitor.checkAddonNotInstalled(ID1);
+          do_check_eq(getUninstallReason(), ADDON_UPGRADE);
+          do_check_eq(getUninstallNewVersion(), 4);
+          BootstrapMonitor.checkAddonNotStarted(ID1);
+
+          AddonManager.getAddonByID(ID1, function(b1_2) {
+            do_check_neq(b1_2, null);
+            do_check_eq(b1_2.version, "4.0");
+            do_check_true(b1_2.isActive);
+            do_check_false(b1_2.isSystem);
+            do_check_eq(b1_2.pendingOperations, AddonManager.PENDING_NONE);
+
+            do_check_bootstrappedPref(run_test_26);
+          });
+        }));
+      });
+  });
+  installAllFiles([do_get_addon("test_bootstrap1_1")], function test_25_installed() {
+    do_print("test 25 install done");
+  });
+}
+
+// Tests that updating from a normal add-on to a bootstrappable add-on calls
+// the install method
+function run_test_26() {
+  installAllFiles([do_get_addon("test_bootstrap1_1")], function() {
+    // Needs a restart to complete this
+    BootstrapMonitor.checkAddonNotInstalled(ID1);
+    BootstrapMonitor.checkAddonNotStarted(ID1);
+
+    AddonManager.getAddonByID(ID1, callback_soon(function(b1) {
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "4.0");
+      do_check_true(b1.isActive);
+      do_check_false(b1.isSystem);
+      do_check_true(hasFlag(b1.pendingOperations, AddonManager.PENDING_UPGRADE));
+
+      restartManager();
+
+      BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+      do_check_eq(getInstallReason(), ADDON_DOWNGRADE);
+      do_check_eq(getInstallOldVersion(), 4);
+      BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+
+      AddonManager.getAddonByID(ID1, function(b1_2) {
+        do_check_neq(b1_2, null);
+        do_check_eq(b1_2.version, "1.0");
+        do_check_true(b1_2.isActive);
+        do_check_false(b1_2.isSystem);
+        do_check_eq(b1_2.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_bootstrappedPref(run_test_27);
+      });
+    }));
+  });
+}
+
+// Tests that updating from a bootstrappable add-on to a normal add-on while
+// disabled calls the uninstall method
+function run_test_27() {
+  AddonManager.getAddonByID(ID1, function(b1) {
+    do_check_neq(b1, null);
+    b1.userDisabled = true;
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.isActive);
+    do_check_eq(b1.pendingOperations, AddonManager.PENDING_NONE);
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    BootstrapMonitor.checkAddonNotStarted(ID1);
+
+    installAllFiles([do_get_addon("test_bootstrap1_4")], function() {
+      // Updating disabled things happens immediately
+      BootstrapMonitor.checkAddonNotInstalled(ID1);
+      do_check_eq(getUninstallReason(), ADDON_UPGRADE);
+      do_check_eq(getUninstallNewVersion(), 4);
+      BootstrapMonitor.checkAddonNotStarted(ID1);
+
+      AddonManager.getAddonByID(ID1, callback_soon(function(b1_2) {
+        do_check_neq(b1_2, null);
+        do_check_eq(b1_2.version, "4.0");
+        do_check_false(b1_2.isActive);
+        do_check_eq(b1_2.pendingOperations, AddonManager.PENDING_NONE);
+
+        restartManager();
+
+        BootstrapMonitor.checkAddonNotInstalled(ID1);
+        BootstrapMonitor.checkAddonNotStarted(ID1);
+
+        AddonManager.getAddonByID(ID1, function(b1_3) {
+          do_check_neq(b1_3, null);
+          do_check_eq(b1_3.version, "4.0");
+          do_check_false(b1_3.isActive);
+          do_check_eq(b1_3.pendingOperations, AddonManager.PENDING_NONE);
+
+          do_check_bootstrappedPref(run_test_28);
+        });
+      }));
+    });
+  });
+}
+
+// Tests that updating from a normal add-on to a bootstrappable add-on when
+// disabled calls the install method but not the startup method
+function run_test_28() {
+  installAllFiles([do_get_addon("test_bootstrap1_1")], function() {
+   do_execute_soon(function bootstrap_disabled_downgrade_check() {
+    // Doesn't need a restart to complete this
+    BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+    do_check_eq(getInstallReason(), ADDON_DOWNGRADE);
+    do_check_eq(getInstallOldVersion(), 4);
+    BootstrapMonitor.checkAddonNotStarted(ID1);
+
+    AddonManager.getAddonByID(ID1, callback_soon(function(b1) {
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "1.0");
+      do_check_false(b1.isActive);
+      do_check_true(b1.userDisabled);
+      do_check_eq(b1.pendingOperations, AddonManager.PENDING_NONE);
+
+      restartManager();
+
+      BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+      BootstrapMonitor.checkAddonNotStarted(ID1);
+
+      AddonManager.getAddonByID(ID1, function(b1_2) {
+        do_check_neq(b1_2, null);
+        do_check_true(b1_2.userDisabled);
+        b1_2.userDisabled = false;
+        do_check_eq(b1_2.version, "1.0");
+        do_check_true(b1_2.isActive);
+        do_check_false(b1_2.isSystem);
+        do_check_eq(b1_2.pendingOperations, AddonManager.PENDING_NONE);
+        BootstrapMonitor.checkAddonInstalled(ID1, "1.0");
+        BootstrapMonitor.checkAddonStarted(ID1, "1.0");
+
+        do_check_bootstrappedPref(do_test_finished);
+      });
+    }));
+   });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap_const.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap_const.js
new file mode 100644
index 000000000..101d49510
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap_const.js
@@ -0,0 +1,17 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+startupManager();
+
+add_task(function*() {
+  let sawInstall = false;
+  Services.obs.addObserver(function() {
+    sawInstall = true;
+  }, "addon-install", false);
+
+  yield promiseInstallAllFiles([do_get_addon("test_bootstrap_const")]);
+
+  ok(sawInstall);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap_globals.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap_globals.js
new file mode 100644
index 000000000..29b538d21
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap_globals.js
@@ -0,0 +1,37 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that bootstrap.js has the expected globals defined
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+const EXPECTED_GLOBALS = [
+  ["Worker", "function"],
+  ["ChromeWorker", "function"],
+  ["console", "object"]
+];
+
+function run_test() {
+  do_test_pending();
+  startupManager();
+  let sawGlobals = false;
+
+  Services.obs.addObserver(function(subject) {
+    subject.wrappedJSObject.expectedGlobals = EXPECTED_GLOBALS;
+  }, "bootstrap-request-globals", false);
+
+  Services.obs.addObserver(function({ wrappedJSObject: seenGlobals }) {
+    for (let [name, ] of EXPECTED_GLOBALS)
+      do_check_true(seenGlobals.has(name));
+
+    sawGlobals = true;
+  }, "bootstrap-seen-globals", false);
+
+  installAllFiles([do_get_addon("bootstrap_globals")], function() {
+    do_check_true(sawGlobals);
+    shutdownManager();
+    do_test_finished();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap_resource.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap_resource.js
new file mode 100644
index 000000000..7b7883225
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bootstrap_resource.js
@@ -0,0 +1,56 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that resource protocol substitutions are set and unset for bootstrapped add-ons.
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  let resourceProtocol = Services.io.getProtocolHandler("resource")
+                                 .QueryInterface(Components.interfaces.nsIResProtocolHandler);
+  startupManager();
+
+  installAllFiles([do_get_addon("test_chromemanifest_6")],
+                  function() {
+
+    AddonManager.getAddonByID("addon6@tests.mozilla.org", function(addon) {
+      do_check_neq(addon, null);
+      do_check_true(addon.isActive);
+      do_check_true(resourceProtocol.hasSubstitution("test-addon-1"));
+
+      prepare_test({
+        "addon6@tests.mozilla.org": [
+          ["onDisabling", false],
+          "onDisabled"
+        ]
+      });
+
+      do_check_eq(addon.operationsRequiringRestart &
+                  AddonManager.OP_NEEDS_RESTART_DISABLE, 0);
+      addon.userDisabled = true;
+      ensure_test_completed();
+      do_check_false(resourceProtocol.hasSubstitution("test-addon-1"))
+
+      prepare_test({
+        "addon6@tests.mozilla.org": [
+          ["onEnabling", false],
+          "onEnabled"
+        ]
+      });
+
+      do_check_eq(addon.operationsRequiringRestart &
+                  AddonManager.OP_NEEDS_RESTART_ENABLE, 0);
+      addon.userDisabled = false;
+      ensure_test_completed();
+      do_check_true(resourceProtocol.hasSubstitution("test-addon-1"));
+
+      do_execute_soon(do_test_finished);
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug1180901.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug1180901.js
new file mode 100644
index 000000000..c13531dff
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug1180901.js
@@ -0,0 +1,35 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+  run_next_test();
+}
+
+add_task(function* () {
+  let profileDir = OS.Constants.Path.profileDir;
+  let trashDir = OS.Path.join(profileDir, "extensions", "trash");
+  let testFile = OS.Path.join(trashDir, "test.txt");
+
+  yield OS.File.makeDir(trashDir, {
+    from: profileDir,
+    ignoreExisting: true
+  });
+
+  let trashDirExists = yield OS.File.exists(trashDir);
+  ok(trashDirExists, "trash directory should have been created");
+
+  let file = yield OS.File.open(testFile, {create: true}, {winShare: 0});
+  let fileExists = yield OS.File.exists(testFile);
+  ok(fileExists, "test.txt should have been created in " + trashDir);
+
+  yield promiseInstallAllFiles([do_get_addon("test_install1")]);
+  yield promiseRestartManager();
+  fileExists = yield OS.File.exists(testFile);
+  ok(fileExists, "test.txt still exists");
+  yield file.close();
+  yield OS.File.removeDir(OS.Path.join(OS.Constants.Path.profileDir, "extensions"));
+  yield promiseShutdownManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug1180901_2.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug1180901_2.js
new file mode 100644
index 000000000..8e9f30ef2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug1180901_2.js
@@ -0,0 +1,60 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+  run_next_test();
+}
+
+add_task(function* () {
+  let profileDir = OS.Constants.Path.profileDir;
+  let trashDir = OS.Path.join(profileDir, "extensions", "trash");
+  let testFile = OS.Path.join(trashDir, "test.txt");
+
+  yield OS.File.makeDir(trashDir, {
+    from: profileDir,
+    ignoreExisting: true
+  });
+
+  let trashDirExists = yield OS.File.exists(trashDir);
+  ok(trashDirExists, "trash directory should have been created");
+
+  let file = yield OS.File.open(testFile, {create: true}, {winShare: 0});
+  let fileExists = yield OS.File.exists(testFile);
+  ok(fileExists, "test.txt should have been created in " + trashDir);
+
+  let promiseInstallStatus = new Promise((resolve, reject) => {
+    let listener = {
+      onInstallFailed: function() {
+        AddonManager.removeInstallListener(listener);
+        reject("extension installation should not have failed");
+      },
+      onInstallEnded: function() {
+        AddonManager.removeInstallListener(listener);
+        ok(true, "extension installation should not have failed");
+        resolve();
+      }
+    };
+
+    AddonManager.addInstallListener(listener);
+  });
+
+  yield promiseInstallAllFiles([do_get_addon("test_bootstrap1_1")]);
+
+  // The testFile should still exist at this point because we have not
+  // yet closed the file handle and as a result, Windows cannot remove it.
+  fileExists = yield OS.File.exists(testFile);
+  ok(fileExists, "test.txt should still exist");
+
+  // Wait for the AddonManager to tell us if the installation of the extension
+  // succeeded or not.
+  yield promiseInstallStatus;
+
+  // Cleanup
+  yield promiseShutdownManager();
+  yield file.close();
+  yield OS.File.remove(testFile);
+  yield OS.File.removeDir(trashDir);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug299716.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug299716.js
new file mode 100644
index 000000000..66656abe6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug299716.js
@@ -0,0 +1,208 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+// Update check listener.
+const checkListener = {
+  pendingCount: 0,
+
+  onUpdateAvailable: function onUpdateAvailable(aAddon, aInstall) {
+    for (let currentAddon of ADDONS) {
+      if (currentAddon.id == aAddon.id) {
+       currentAddon.newInstall = aInstall;
+       return;
+      }
+    }
+  },
+
+  onUpdateFinished: function onUpdateFinished() {
+    if (--this.pendingCount == 0)
+      next_test();
+  }
+}
+
+// Get the HTTP server.
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver;
+
+var ADDONS = [
+  // XPCShell
+  {
+    id: "bug299716-a@tests.mozilla.org",
+    addon: "test_bug299716_a_1",
+    installed: true,
+    item: null,
+    newInstall: null
+  },
+
+  // Toolkit
+  {
+    id: "bug299716-b@tests.mozilla.org",
+    addon: "test_bug299716_b_1",
+    installed: true,
+    item: null,
+    newInstall: null
+  },
+
+  // XPCShell + Toolkit
+  {
+    id: "bug299716-c@tests.mozilla.org",
+    addon: "test_bug299716_c_1",
+    installed: true,
+    item: null,
+    newInstall: null
+  },
+
+  // XPCShell (Toolkit invalid)
+  {
+    id: "bug299716-d@tests.mozilla.org",
+    addon: "test_bug299716_d_1",
+    installed: true,
+    item: null,
+    newInstall: null
+  },
+
+  // Toolkit (XPCShell invalid)
+  {
+    id: "bug299716-e@tests.mozilla.org",
+    addon: "test_bug299716_e_1",
+    installed: false,
+    item: null,
+    newInstall: null,
+    failedAppName: "XPCShell"
+  },
+
+  // None (XPCShell, Toolkit invalid)
+  {
+    id: "bug299716-f@tests.mozilla.org",
+    addon: "test_bug299716_f_1",
+    installed: false,
+    item: null,
+    newInstall: null,
+    failedAppName: "XPCShell"
+  },
+
+  // None (Toolkit invalid)
+  {
+    id: "bug299716-g@tests.mozilla.org",
+    addon: "test_bug299716_g_1",
+    installed: false,
+    item: null,
+    newInstall: null,
+    failedAppName: "Toolkit"
+  },
+];
+
+var next_test = function() {};
+
+function do_check_item(aItem, aVersion, aAddonsEntry) {
+  if (aAddonsEntry.installed) {
+    if (aItem == null)
+      do_throw("Addon " + aAddonsEntry.id + " wasn't detected");
+    if (aItem.version != aVersion)
+      do_throw("Addon " + aAddonsEntry.id + " was version " + aItem.version + " instead of " + aVersion);
+  } else if (aItem != null) {
+    do_throw("Addon " + aAddonsEntry.id + " was detected");
+  }
+}
+
+/**
+ * Start the test by installing extensions.
+ */
+function run_test() {
+  do_test_pending();
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "5", "1.9");
+
+  const dataDir = do_get_file("data");
+  const addonsDir = do_get_addon(ADDONS[0].addon).parent;
+
+  // Make sure we can actually get our data files.
+  const xpiFile = addonsDir.clone();
+  xpiFile.append("test_bug299716_a_2.xpi");
+  do_check_true(xpiFile.exists());
+
+  // Create and configure the HTTP server.
+  testserver = new HttpServer();
+  testserver.registerDirectory("/addons/", addonsDir);
+  testserver.registerDirectory("/data/", dataDir);
+  testserver.start(4444);
+
+  // Make sure we can fetch the files over HTTP.
+  const Ci = Components.interfaces;
+  const xhr = Components.classes["@mozilla.org/xmlextras/xmlhttprequest;1"]
+                        .createInstance(Ci.nsIXMLHttpRequest)
+  xhr.open("GET", "http://localhost:4444/addons/test_bug299716_a_2.xpi", false);
+  xhr.send(null);
+  do_check_true(xhr.status == 200);
+
+  xhr.open("GET", "http://localhost:4444/data/test_bug299716.rdf", false);
+  xhr.send(null);
+  do_check_true(xhr.status == 200);
+
+  // Start the real test.
+  startupManager();
+  dump("\n\n*** INSTALLING NEW ITEMS\n\n");
+
+  installAllFiles(ADDONS.map(a => do_get_addon(a.addon)), run_test_pt2,
+                  true);
+}
+
+/**
+ * Check the versions of all items, and ask the extension manager to find updates.
+ */
+function run_test_pt2() {
+  dump("\n\n*** DONE INSTALLING NEW ITEMS\n\n");
+  dump("\n\n*** RESTARTING EXTENSION MANAGER\n\n");
+  restartManager();
+
+  AddonManager.getAddonsByIDs(ADDONS.map(a => a.id), function(items) {
+    dump("\n\n*** REQUESTING UPDATE\n\n");
+    // checkListener will call run_test_pt3().
+    next_test = run_test_pt3;
+
+    // Try to update the items.
+    for (var i = 0; i < ADDONS.length; i++) {
+      var item = items[i];
+      do_check_item(item, "0.1", ADDONS[i]);
+
+      if (item) {
+        checkListener.pendingCount++;
+        ADDONS[i].item = item;
+        item.findUpdates(checkListener, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+      }
+    }
+  });
+}
+
+/**
+ * Install new items for each enabled extension.
+ */
+function run_test_pt3() {
+  // Install the new items.
+  dump("\n\n*** UPDATING ITEMS\n\n");
+  completeAllInstalls(ADDONS.filter(a => a.newInstall).map(a => a.newInstall),
+                      run_test_pt4);
+}
+
+/**
+ * Check the final version of each extension.
+ */
+function run_test_pt4() {
+  dump("\n\n*** RESTARTING EXTENSION MANAGER\n\n");
+  restartManager();
+
+  dump("\n\n*** FINAL CHECKS\n\n");
+  AddonManager.getAddonsByIDs(ADDONS.map(a => a.id), function(items) {
+    for (var i = 0; i < ADDONS.length; i++) {
+      var item = items[i];
+      do_check_item(item, "0.2", ADDONS[i]);
+    }
+
+    testserver.stop(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug299716_2.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug299716_2.js
new file mode 100644
index 000000000..c183edad4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug299716_2.js
@@ -0,0 +1,50 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+// Get the HTTP server.
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver;
+
+var ADDON = {
+  id: "bug299716-2@tests.mozilla.org",
+  addon: "test_bug299716_2"
+};
+
+function run_test() {
+  do_test_pending();
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "1.9");
+
+  const dataDir = do_get_file("data");
+  const addonsDir = do_get_addon(ADDON.addon).parent;
+
+  // Create and configure the HTTP server.
+  testserver = new HttpServer();
+  testserver.registerDirectory("/addons/", addonsDir);
+  testserver.registerDirectory("/data/", dataDir);
+  testserver.start(4444);
+
+  startupManager();
+
+  installAllFiles([do_get_addon(ADDON.addon)], function() {
+    restartManager();
+
+    AddonManager.getAddonByID(ADDON.id, function(item) {
+      do_check_eq(item.version, 0.1);
+      do_check_false(item.isCompatible);
+
+      item.findUpdates({
+        onUpdateFinished: function(addon) {
+          do_check_false(item.isCompatible);
+
+          testserver.stop(do_test_finished);
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug324121.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug324121.js
new file mode 100644
index 000000000..84b6c6189
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug324121.js
@@ -0,0 +1,178 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+// Get the HTTP server.
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver;
+
+var next_test = null;
+var gItemsNotChecked =[];
+
+var ADDONS = [ {id: "bug324121_1@tests.mozilla.org",
+                addon: "test_bug324121_1",
+                shouldCheck: false },
+               {id: "bug324121_2@tests.mozilla.org",
+                addon: "test_bug324121_2",
+                shouldCheck: true },
+               {id: "bug324121_3@tests.mozilla.org",
+                addon: "test_bug324121_3",
+                shouldCheck: true },
+               {id: "bug324121_4@tests.mozilla.org",
+                addon: "test_bug324121_4",
+                shouldCheck: true },
+               {id: "bug324121_5@tests.mozilla.org",
+                addon: "test_bug324121_5",
+                shouldCheck: false },
+               {id: "bug324121_6@tests.mozilla.org",
+                addon: "test_bug324121_6",
+                shouldCheck: true },
+               {id: "bug324121_7@tests.mozilla.org",
+                addon: "test_bug324121_7",
+                shouldCheck: true },
+               {id: "bug324121_8@tests.mozilla.org",
+                addon: "test_bug324121_8",
+                shouldCheck: true },
+               {id: "bug324121_9@tests.mozilla.org",
+                addon: "test_bug324121_9",
+                shouldCheck: false } ];
+
+// nsIAddonUpdateCheckListener
+var updateListener = {
+  pendingCount: 0,
+
+  onUpdateAvailable: function onAddonUpdateEnded(aAddon) {
+    switch (aAddon.id) {
+      // add-on disabled - should not happen
+      case "bug324121_1@tests.mozilla.org":
+      // app id already compatible - should not happen
+      case "bug324121_5@tests.mozilla.org":
+      // toolkit id already compatible - should not happen
+      case "bug324121_9@tests.mozilla.org":
+        do_throw("Should not have seen an update check for " + aAddon.id);
+        break;
+
+      // app id incompatible update available
+      case "bug324121_3@tests.mozilla.org":
+      // update rdf not found
+      case "bug324121_4@tests.mozilla.org":
+      // toolkit id incompatible update available
+      case "bug324121_7@tests.mozilla.org":
+      // update rdf not found
+      case "bug324121_8@tests.mozilla.org":
+        do_throw("Should be no update available for " + aAddon.id);
+        break;
+
+      // Updates available
+      case "bug324121_2@tests.mozilla.org":
+      case "bug324121_6@tests.mozilla.org":
+        break;
+
+      default:
+        do_throw("Update check for unknown " + aAddon.id);
+    }
+
+    // pos should always be >= 0 so just let this throw if this fails
+    var pos = gItemsNotChecked.indexOf(aAddon.id);
+    gItemsNotChecked.splice(pos, 1);
+  },
+
+  onNoUpdateAvailable: function onNoUpdateAvailable(aAddon) {
+    switch (aAddon.id) {
+      // add-on disabled - should not happen
+      case "bug324121_1@tests.mozilla.org":
+      // app id already compatible - should not happen
+      case "bug324121_5@tests.mozilla.org":
+      // toolkit id already compatible - should not happen
+      case "bug324121_9@tests.mozilla.org":
+        do_throw("Should not have seen an update check for " + aAddon.id);
+        break;
+
+      // app id incompatible update available
+      case "bug324121_3@tests.mozilla.org":
+      // update rdf not found
+      case "bug324121_4@tests.mozilla.org":
+      // toolkit id incompatible update available
+      case "bug324121_7@tests.mozilla.org":
+      // update rdf not found
+      case "bug324121_8@tests.mozilla.org":
+        break;
+
+      // Updates available
+      case "bug324121_2@tests.mozilla.org":
+      case "bug324121_6@tests.mozilla.org":
+        do_throw("Should be an update available for " + aAddon.id);
+        break;
+
+      default:
+        do_throw("Update check for unknown " + aAddon.id);
+    }
+
+    // pos should always be >= 0 so just let this throw if this fails
+    var pos = gItemsNotChecked.indexOf(aAddon.id);
+    gItemsNotChecked.splice(pos, 1);
+  },
+
+  onUpdateFinished: function onUpdateFinished(aAddon) {
+    if (--this.pendingCount == 0)
+      test_complete();
+  }
+};
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  const dataDir = do_get_file("data");
+
+  // Create and configure the HTTP server.
+  testserver = new HttpServer();
+  testserver.registerDirectory("/data/", dataDir);
+  testserver.start(4444);
+
+  startupManager();
+
+  installAllFiles(ADDONS.map(a => do_get_addon(a.addon)), function() {
+    restartManager();
+    AddonManager.getAddonByID(ADDONS[0].id, callback_soon(function(firstAddon) {
+      do_check_true(firstAddon);
+      firstAddon.userDisabled = true;
+      restartManager();
+
+      AddonManager.getAddonsByTypes(["extension"], function(installedItems) {
+        var items = [];
+
+        for (let addon of ADDONS) {
+          for (let installedItem of installedItems) {
+            if (addon.id != installedItem.id)
+              continue;
+            if (installedItem.userDisabled)
+              continue;
+
+            if (addon.shouldCheck == installedItem.isCompatibleWith("3", "3")) {
+              do_throw(installedItem.id + " had the wrong compatibility: " +
+                installedItem.isCompatibleWith("3", "3"));
+            }
+
+            if (addon.shouldCheck) {
+              gItemsNotChecked.push(addon.id);
+              updateListener.pendingCount++;
+              installedItem.findUpdates(updateListener,
+                                            AddonManager.UPDATE_WHEN_USER_REQUESTED,
+                                            "3", "3");
+            }
+          }
+        }
+      });
+    }));
+  });
+}
+
+function test_complete() {
+  do_check_eq(gItemsNotChecked.length, 0);
+  testserver.stop(do_test_finished);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug335238.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug335238.js
new file mode 100644
index 000000000..251bdca70
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug335238.js
@@ -0,0 +1,173 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+const PREF_MATCH_OS_LOCALE = "intl.locale.matchOS";
+const PREF_SELECTED_LOCALE = "general.useragent.locale";
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+
+Cu.import("resource://testing-common/httpd.js");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+
+// This is the data we expect to see sent as part of the update url.
+var EXPECTED = [
+  {
+    id: "bug335238_1@tests.mozilla.org",
+    version: "1.3.4",
+    maxAppVersion: "5",
+    status: "userEnabled",
+    appId: "xpcshell@tests.mozilla.org",
+    appVersion: "1",
+    appOs: "XPCShell",
+    appAbi: "noarch-spidermonkey",
+    locale: "en-US",
+    reqVersion: "2"
+  },
+  {
+    id: "bug335238_2@tests.mozilla.org",
+    version: "28at",
+    maxAppVersion: "7",
+    status: "userDisabled",
+    appId: "xpcshell@tests.mozilla.org",
+    appVersion: "1",
+    appOs: "XPCShell",
+    appAbi: "noarch-spidermonkey",
+    locale: "en-US",
+    reqVersion: "2"
+  },
+  {
+    id: "bug335238_3@tests.mozilla.org",
+    version: "58",
+    maxAppVersion: "*",
+    status: "userDisabled,softblocked",
+    appId: "xpcshell@tests.mozilla.org",
+    appVersion: "1",
+    appOs: "XPCShell",
+    appAbi: "noarch-spidermonkey",
+    locale: "en-US",
+    reqVersion: "2"
+  },
+  {
+    id: "bug335238_4@tests.mozilla.org",
+    version: "4",
+    maxAppVersion: "2+",
+    status: "userEnabled,blocklisted",
+    appId: "xpcshell@tests.mozilla.org",
+    appVersion: "1",
+    appOs: "XPCShell",
+    appAbi: "noarch-spidermonkey",
+    locale: "en-US",
+    reqVersion: "2"
+  }
+];
+
+var ADDONS = [
+  {id: "bug335238_1@tests.mozilla.org",
+   addon: "test_bug335238_1"},
+  {id: "bug335238_2@tests.mozilla.org",
+   addon: "test_bug335238_2"},
+  {id: "bug335238_3@tests.mozilla.org",
+   addon: "test_bug335238_3"},
+  {id: "bug335238_4@tests.mozilla.org",
+   addon: "test_bug335238_4"}
+];
+
+// This is a replacement for the blocklist service
+var BlocklistService = {
+  getAddonBlocklistState: function(aAddon, aAppVersion, aToolkitVersion) {
+    if (aAddon.id == "bug335238_3@tests.mozilla.org")
+      return Ci.nsIBlocklistService.STATE_SOFTBLOCKED;
+    if (aAddon.id == "bug335238_4@tests.mozilla.org")
+      return Ci.nsIBlocklistService.STATE_BLOCKED;
+    return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
+  },
+
+  getPluginBlocklistState: function(aPlugin, aVersion, aAppVersion, aToolkitVersion) {
+    return Ci.nsIBlocklistService.STATE_NOT_BLOCKED;
+  },
+
+  isAddonBlocklisted: function(aAddon, aAppVersion, aToolkitVersion) {
+    return this.getAddonBlocklistState(aAddon, aAppVersion, aToolkitVersion) ==
+           Ci.nsIBlocklistService.STATE_BLOCKED;
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIBlocklistService)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+MockRegistrar.register("@mozilla.org/extensions/blocklist;1", BlocklistService);
+
+var server;
+
+var updateListener = {
+  pendingCount: 0,
+
+  onUpdateAvailable: function(aAddon) {
+    do_throw("Should not have seen an update for " + aAddon.id);
+  },
+
+  onUpdateFinished: function() {
+    if (--this.pendingCount == 0)
+      server.stop(do_test_finished);
+  }
+}
+
+var requestHandler = {
+  handle: function(metadata, response)
+  {
+    var expected = EXPECTED[metadata.path.substring(1)];
+    var params = metadata.queryString.split("&");
+    do_check_eq(params.length, 10);
+    for (var k in params) {
+      var pair = params[k].split("=");
+      var name = decodeURIComponent(pair[0]);
+      var value = decodeURIComponent(pair[1]);
+      do_check_eq(expected[name], value);
+    }
+    response.setStatusLine(metadata.httpVersion, 404, "Not Found");
+  }
+}
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  server = new HttpServer();
+  server.registerPathHandler("/0", requestHandler);
+  server.registerPathHandler("/1", requestHandler);
+  server.registerPathHandler("/2", requestHandler);
+  server.registerPathHandler("/3", requestHandler);
+  server.start(4444);
+
+  Services.prefs.setBoolPref(PREF_MATCH_OS_LOCALE, false);
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "en-US");
+
+  startupManager();
+  installAllFiles(ADDONS.map(a => do_get_addon(a.addon)), function() {
+
+    restartManager();
+    AddonManager.getAddonByID(ADDONS[1].id, callback_soon(function(addon) {
+      do_check_true(!(!addon));
+      addon.userDisabled = true;
+      restartManager();
+
+      AddonManager.getAddonsByIDs(ADDONS.map(a => a.id), function(installedItems) {
+        installedItems.forEach(function(item) {
+          updateListener.pendingCount++;
+          item.findUpdates(updateListener, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+        });
+      });
+    }));
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug371495.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug371495.js
new file mode 100644
index 000000000..43656f126
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug371495.js
@@ -0,0 +1,35 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+const PREF_MATCH_OS_LOCALE = "intl.locale.matchOS";
+const PREF_SELECTED_LOCALE = "general.useragent.locale";
+
+const ADDON = "test_bug371495";
+const ID = "bug371495@tests.mozilla.org";
+
+function run_test()
+{
+  // Setup for test
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1");
+
+  // Install test add-on
+  startupManager();
+  installAllFiles([do_get_addon(ADDON)], function() {
+    AddonManager.getAddonByID(ID, callback_soon(function(addon) {
+      do_check_neq(addon, null);
+      do_check_eq(addon.name, "Test theme");
+      restartManager();
+
+      AddonManager.getAddonByID(ID, callback_soon(function(addon2) {
+        do_check_neq(addon2, null);
+        do_check_eq(addon2.optionsURL, null);
+        do_check_eq(addon2.aboutURL, null);
+
+        do_execute_soon(do_test_finished);
+      }));
+    }));
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug384052.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug384052.js
new file mode 100644
index 000000000..aeaaf3d8f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug384052.js
@@ -0,0 +1,103 @@
+const CLASS_ID = Components.ID("{12345678-1234-1234-1234-123456789abc}");
+const CONTRACT_ID = "@mozilla.org/test-parameter-source;1";
+
+// Get and create the HTTP server.
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+var gTestURL = "http://127.0.0.1:" + gPort + "/update.rdf?itemID=%ITEM_ID%&custom1=%CUSTOM1%&custom2=%CUSTOM2%";
+var gExpectedQuery = "itemID=test@mozilla.org&custom1=custom_parameter_1&custom2=custom_parameter_2";
+var gSeenExpectedURL = false;
+
+var gComponentRegistrar = Components.manager.QueryInterface(AM_Ci.nsIComponentRegistrar);
+var gCategoryManager = AM_Cc["@mozilla.org/categorymanager;1"].getService(AM_Ci.nsICategoryManager);
+
+// Factory for our parameter handler
+var paramHandlerFactory = {
+  QueryInterface: function(iid) {
+    if (iid.equals(AM_Ci.nsIFactory) || iid.equals(AM_Ci.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  },
+
+  createInstance: function(outer, iid) {
+    var bag = AM_Cc["@mozilla.org/hash-property-bag;1"].
+              createInstance(AM_Ci.nsIWritablePropertyBag);
+    bag.setProperty("CUSTOM1", "custom_parameter_1");
+    bag.setProperty("CUSTOM2", "custom_parameter_2");
+    return bag.QueryInterface(iid);
+  }
+};
+
+function initTest()
+{
+  do_test_pending();
+  // Setup extension manager
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  // Configure the HTTP server.
+  testserver.registerPathHandler("/update.rdf", function(aRequest, aResponse) {
+    gSeenExpectedURL = aRequest.queryString == gExpectedQuery;
+    aResponse.setStatusLine(null, 404, "Not Found");
+  });
+
+  // Register our parameter handlers
+  gComponentRegistrar.registerFactory(CLASS_ID, "Test component", CONTRACT_ID, paramHandlerFactory);
+  gCategoryManager.addCategoryEntry("extension-update-params", "CUSTOM1", CONTRACT_ID, false, false);
+  gCategoryManager.addCategoryEntry("extension-update-params", "CUSTOM2", CONTRACT_ID, false, false);
+
+  // Install a test extension into the profile
+  let dir = gProfD.clone();
+  dir.append("extensions");
+  writeInstallRDFForExtension({
+    id: "test@mozilla.org",
+    version: "1.0",
+    name: "Test extension",
+    updateURL: gTestURL,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+  }, dir);
+
+  startupManager();
+}
+
+function shutdownTest()
+{
+  shutdownManager();
+
+  gComponentRegistrar.unregisterFactory(CLASS_ID, paramHandlerFactory);
+  gCategoryManager.deleteCategoryEntry("extension-update-params", "CUSTOM1", false);
+  gCategoryManager.deleteCategoryEntry("extension-update-params", "CUSTOM2", false);
+
+  do_test_finished();
+}
+
+function run_test()
+{
+  initTest();
+
+  AddonManager.getAddonByID("test@mozilla.org", function(item) {
+    // Initiate update
+    item.findUpdates({
+      onCompatibilityUpdateAvailable: function(addon) {
+        do_throw("Should not have seen a compatibility update");
+      },
+
+      onUpdateAvailable: function(addon, install) {
+        do_throw("Should not have seen an available update");
+      },
+
+      onUpdateFinished: function(addon, error) {
+        do_check_eq(error, AddonManager.UPDATE_STATUS_DOWNLOAD_ERROR);
+        do_check_true(gSeenExpectedURL);
+        do_execute_soon(shutdownTest);
+      }
+    }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug393285.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug393285.js
new file mode 100644
index 000000000..ebc330cdd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug393285.js
@@ -0,0 +1,316 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+const URI_EXTENSION_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+Cu.import("resource://testing-common/httpd.js");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+// register static files with server and interpolate port numbers in them
+mapFile("/data/test_bug393285.xml", testserver);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+var addonIDs = ["test_bug393285_1@tests.mozilla.org",
+                "test_bug393285_2@tests.mozilla.org",
+                "test_bug393285_3a@tests.mozilla.org",
+                "test_bug393285_3b@tests.mozilla.org",
+                "test_bug393285_4@tests.mozilla.org",
+                "test_bug393285_5@tests.mozilla.org",
+                "test_bug393285_6@tests.mozilla.org",
+                "test_bug393285_7@tests.mozilla.org",
+                "test_bug393285_8@tests.mozilla.org",
+                "test_bug393285_9@tests.mozilla.org",
+                "test_bug393285_10@tests.mozilla.org",
+                "test_bug393285_11@tests.mozilla.org",
+                "test_bug393285_12@tests.mozilla.org",
+                "test_bug393285_13@tests.mozilla.org",
+                "test_bug393285_14@tests.mozilla.org"];
+
+// A window watcher to deal with the blocklist UI dialog.
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, args) {
+    // Should be called to list the newly blocklisted items
+    do_check_eq(url, URI_EXTENSION_BLOCKLIST_DIALOG);
+
+    // Simulate auto-disabling any softblocks
+    var list = args.wrappedJSObject.list;
+    list.forEach(function(aItem) {
+      if (!aItem.blocked)
+        aItem.disable = true;
+    });
+
+    // run the code after the blocklist is closed
+    Services.obs.notifyObservers(null, "addon-blocklist-closed", null);
+
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+
+function load_blocklist(aFile, aCallback) {
+  Services.obs.addObserver(function() {
+    Services.obs.removeObserver(arguments.callee, "blocklist-updated");
+
+    do_execute_soon(aCallback);
+  }, "blocklist-updated", false);
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + aFile);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+function run_test() {
+  do_test_pending();
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_1@tests.mozilla.org",
+    name: "extension 1",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_2@tests.mozilla.org",
+    name: "extension 2",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_3a@tests.mozilla.org",
+    name: "extension 3a",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_3b@tests.mozilla.org",
+    name: "extension 3b",
+    version: "2.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_4@tests.mozilla.org",
+    name: "extension 4",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_5@tests.mozilla.org",
+    name: "extension 5",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_6@tests.mozilla.org",
+    name: "extension 6",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_7@tests.mozilla.org",
+    name: "extension 7",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_8@tests.mozilla.org",
+    name: "extension 8",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_9@tests.mozilla.org",
+    name: "extension 9",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_10@tests.mozilla.org",
+    name: "extension 10",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_11@tests.mozilla.org",
+    name: "extension 11",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_12@tests.mozilla.org",
+    name: "extension 12",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_13@tests.mozilla.org",
+    name: "extension 13",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_14@tests.mozilla.org",
+    name: "extension 14",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(addonIDs, function(addons) {
+    for (let addon of addons) {
+      do_check_eq(addon.blocklistState, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+    }
+    run_test_1();
+  });
+}
+
+function run_test_1() {
+  load_blocklist("test_bug393285.xml", function() {
+    restartManager();
+
+    var blocklist = Cc["@mozilla.org/extensions/blocklist;1"]
+                    .getService(Ci.nsIBlocklistService);
+
+    AddonManager.getAddonsByIDs(addonIDs,
+                               function([a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
+                                         a11, a12, a13, a14, a15]) {
+      // No info in blocklist, shouldn't be blocked
+      do_check_false(blocklist.isAddonBlocklisted(a1, "1", "1.9"));
+
+      // Should always be blocked
+      do_check_true(blocklist.isAddonBlocklisted(a2, "1", "1.9"));
+
+      // Only version 1 should be blocked
+      do_check_true(blocklist.isAddonBlocklisted(a3, "1", "1.9"));
+      do_check_false(blocklist.isAddonBlocklisted(a4, "1", "1.9"));
+
+      // Should be blocked for app version 1
+      do_check_true(blocklist.isAddonBlocklisted(a5, "1", "1.9"));
+      do_check_false(blocklist.isAddonBlocklisted(a5, "2", "1.9"));
+
+      // Not blocklisted because we are a different OS
+      do_check_false(blocklist.isAddonBlocklisted(a6, "2", "1.9"));
+
+      // Blocklisted based on OS
+      do_check_true(blocklist.isAddonBlocklisted(a7, "2", "1.9"));
+      do_check_true(blocklist.isAddonBlocklisted(a8, "2", "1.9"));
+
+      // Not blocklisted because we are a different ABI
+      do_check_false(blocklist.isAddonBlocklisted(a9, "2", "1.9"));
+
+      // Blocklisted based on ABI
+      do_check_true(blocklist.isAddonBlocklisted(a10, "2", "1.9"));
+      do_check_true(blocklist.isAddonBlocklisted(a11, "2", "1.9"));
+
+      // Doesnt match both os and abi so not blocked
+      do_check_false(blocklist.isAddonBlocklisted(a12, "2", "1.9"));
+      do_check_false(blocklist.isAddonBlocklisted(a13, "2", "1.9"));
+      do_check_false(blocklist.isAddonBlocklisted(a14, "2", "1.9"));
+
+      // Matches both os and abi so blocked
+      do_check_true(blocklist.isAddonBlocklisted(a15, "2", "1.9"));
+      end_test();
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug394300.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug394300.js
new file mode 100644
index 000000000..bd393b91c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug394300.js
@@ -0,0 +1,56 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+Components.utils.import("resource://testing-common/httpd.js");
+var server;
+
+// nsIAddonUpdateCheckListener implementation
+var updateListener = {
+  _count: 0,
+
+  onUpdateAvailable: function onAddonUpdateEnded(aAddon, aInstall) {
+    do_check_eq(aInstall.version, 10);
+  },
+
+  onNoUpdateAvailable: function onNoUpdateAvailable(aAddon) {
+    do_throw("Expected an available update for " + aAddon.id);
+  },
+
+  onUpdateFinished: function onUpdateFinished() {
+    if (++this._count == 2)
+      server.stop(do_test_finished);
+  },
+}
+
+function run_test()
+{
+  // Setup for test
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+  startupManager();
+
+  installAllFiles([do_get_addon("test_bug394300_1"),
+                   do_get_addon("test_bug394300_2")], function() {
+
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["bug394300_1@tests.mozilla.org",
+                                 "bug394300_2@tests.mozilla.org"], function(updates) {
+
+      do_check_neq(updates[0], null);
+      do_check_neq(updates[1], null);
+
+      server = new HttpServer();
+      server.registerDirectory("/", do_get_file("data"));
+      server.start(4444);
+
+      updates[0].findUpdates(updateListener, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+      updates[1].findUpdates(updateListener, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug397778.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug397778.js
new file mode 100644
index 000000000..aa18a6946
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug397778.js
@@ -0,0 +1,117 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+const PREF_MATCH_OS_LOCALE = "intl.locale.matchOS";
+const PREF_SELECTED_LOCALE = "general.useragent.locale";
+
+const ADDON = "test_bug397778";
+const ID = "bug397778@tests.mozilla.org";
+
+function run_test()
+{
+  // Setup for test
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1");
+  Services.prefs.setBoolPref(PREF_MATCH_OS_LOCALE, false);
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "fr-FR");
+
+  // Install test add-on
+  startupManager();
+  installAllFiles([do_get_addon(ADDON)], function() {
+    restartManager();
+
+    run_test_1();
+  });
+}
+
+function run_test_1() {
+  AddonManager.getAddonByID(ID, callback_soon(function(addon) {
+    do_check_neq(addon, null);
+    do_check_eq(addon.name, "fr Name");
+    do_check_eq(addon.description, "fr Description");
+
+    // Disable item
+    addon.userDisabled = true;
+    restartManager();
+
+    AddonManager.getAddonByID(ID, function(newAddon) {
+      do_check_neq(newAddon, null);
+      do_check_eq(newAddon.name, "fr Name");
+
+      do_execute_soon(run_test_2);
+    });
+  }));
+}
+
+function run_test_2() {
+  // Change locale. The more specific de-DE is the best match
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "de");
+  restartManager();
+
+  AddonManager.getAddonByID(ID, function(addon) {
+    do_check_neq(addon, null);
+    do_check_eq(addon.name, "de-DE Name");
+    do_check_eq(addon.description, null);
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+function run_test_3() {
+  // Change locale. Locale case should have no effect
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "DE-de");
+  restartManager();
+
+  AddonManager.getAddonByID(ID, function(addon) {
+    do_check_neq(addon, null);
+    do_check_eq(addon.name, "de-DE Name");
+    do_check_eq(addon.description, null);
+
+    do_execute_soon(run_test_4);
+  });
+}
+
+function run_test_4() {
+  // Change locale. es-ES should closely match
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "es-AR");
+  restartManager();
+
+  AddonManager.getAddonByID(ID, function(addon) {
+    do_check_neq(addon, null);
+    do_check_eq(addon.name, "es-ES Name");
+    do_check_eq(addon.description, "es-ES Description");
+
+    do_execute_soon(run_test_5);
+  });
+}
+
+function run_test_5() {
+  // Change locale. Either zh-CN or zh-TW could match
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "zh");
+  restartManager();
+
+  AddonManager.getAddonByID(ID, function(addon) {
+    do_check_neq(addon, null);
+    if (addon.name != "zh-TW Name" && addon.name != "zh-CN Name")
+      do_throw("zh matched to " + addon.name);
+
+    do_execute_soon(run_test_6);
+  });
+}
+
+function run_test_6() {
+  // Unknown locale should try to match against en-US as well. Of en,en-GB
+  // en should match as being less specific
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "nl-NL");
+  restartManager();
+
+  AddonManager.getAddonByID(ID, function(addon) {
+    do_check_neq(addon, null);
+    do_check_eq(addon.name, "en Name");
+    do_check_eq(addon.description, "en Description");
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug406118.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug406118.js
new file mode 100644
index 000000000..e22ab87c9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug406118.js
@@ -0,0 +1,155 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+var addonIDs = ["test_bug393285_1@tests.mozilla.org",
+                "test_bug393285_2@tests.mozilla.org",
+                "test_bug393285_3a@tests.mozilla.org",
+                "test_bug393285_4@tests.mozilla.org"];
+
+var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
+
+const URI_EXTENSION_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+Cu.import("resource://testing-common/httpd.js");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+// register static files with server and interpolate port numbers in them
+mapFile("/data/test_bug393285.xml", testserver);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// A window watcher to deal with the blocklist UI dialog.
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, args) {
+    // Should be called to list the newly blocklisted items
+    do_check_eq(url, URI_EXTENSION_BLOCKLIST_DIALOG);
+
+    // Simulate auto-disabling any softblocks
+    var list = args.wrappedJSObject.list;
+    list.forEach(function(aItem) {
+      if (!aItem.blocked)
+        aItem.disable = true;
+    });
+
+    // run the code after the blocklist is closed
+    Services.obs.notifyObservers(null, "addon-blocklist-closed", null);
+
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+function load_blocklist(aFile, aCallback) {
+  Services.obs.addObserver(function() {
+    Services.obs.removeObserver(arguments.callee, "blocklist-updated");
+
+    do_execute_soon(aCallback);
+  }, "blocklist-updated", false);
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + aFile);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+function run_test() {
+  do_test_pending();
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_1@tests.mozilla.org",
+    name: "extension 1",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_2@tests.mozilla.org",
+    name: "extension 2",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_3a@tests.mozilla.org",
+    name: "extension 3a",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "test_bug393285_4@tests.mozilla.org",
+    name: "extension 4",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(addonIDs, function(addons) {
+    for (let addon of addons) {
+      do_check_eq(addon.blocklistState, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+    }
+    run_test_1();
+  });
+}
+
+function run_test_1() {
+  load_blocklist("test_bug393285.xml", function() {
+    restartManager();
+
+    var blocklist = Cc["@mozilla.org/extensions/blocklist;1"]
+                    .getService(Ci.nsIBlocklistService);
+
+    AddonManager.getAddonsByIDs(addonIDs,
+                               function([a1, a2, a3, a4]) {
+      // No info in blocklist, shouldn't be blocked
+      do_check_false(blocklist.isAddonBlocklisted(a1, null, null));
+
+      // All these should be blocklisted for the current app.
+      do_check_true(blocklist.isAddonBlocklisted(a2, null, null));
+      do_check_true(blocklist.isAddonBlocklisted(a3, null, null));
+      do_check_true(blocklist.isAddonBlocklisted(a4, null, null));
+
+      end_test();
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug424262.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug424262.js
new file mode 100644
index 000000000..8b29e15a5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug424262.js
@@ -0,0 +1,62 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+Components.utils.import("resource://gre/modules/addons/AddonRepository.jsm");
+
+const PREF_GETADDONS_GETRECOMMENDED = "extensions.getAddons.recommended.url";
+
+Components.utils.import("resource://testing-common/httpd.js");
+var server;
+var RESULTS = [
+  null,
+  null,
+  0,
+  2,
+  4,
+  5,
+  5,
+  5
+];
+
+var RecommendedCallback = {
+  searchSucceeded: function(addons, length, total) {
+    dump("loaded");
+    // Search is complete
+    do_check_eq(length, RESULTS.length);
+
+    for (var i = 0; i < length; i++) {
+      if (addons[i].averageRating != RESULTS[i])
+        do_throw("Rating for " + addons[i].id + " was " + addons[i].averageRating + ", should have been " + RESULTS[i]);
+    }
+    server.stop(do_test_finished);
+  },
+
+  searchFailed: function() {
+    server.stop(do_test_finished);
+    do_throw("Recommended results failed");
+  }
+};
+
+function run_test()
+{
+  // EM needs to be running.
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+  startupManager();
+
+  server = new HttpServer();
+  server.start(-1);
+  gPort = server.identity.primaryPort;
+  mapFile("/data/test_bug424262.xml", server);
+
+  // Point the addons repository to the test server
+  Services.prefs.setCharPref(PREF_GETADDONS_GETRECOMMENDED, "http://localhost:" +
+                             gPort + "/data/test_bug424262.xml");
+
+  do_check_neq(AddonRepository, null);
+
+  do_test_pending();
+  // Pull some results.
+  AddonRepository.retrieveRecommendedAddons(RESULTS.length, RecommendedCallback);
+}
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug425657.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug425657.js
new file mode 100644
index 000000000..f11a942fb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug425657.js
@@ -0,0 +1,27 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+const ADDON = "test_bug425657";
+const ID = "bug425657@tests.mozilla.org";
+
+function run_test()
+{
+  // Setup for test
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1");
+
+  // Install test add-on
+  startupManager();
+  installAllFiles([do_get_addon(ADDON)], function() {
+    restartManager();
+    AddonManager.getAddonByID(ID, function(addon) {
+      do_check_neq(addon, null);
+      do_check_eq(addon.name, "Deutsches W\u00f6rterbuch");
+      do_check_eq(addon.name.length, 20);
+
+      do_execute_soon(do_test_finished);
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug430120.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug430120.js
new file mode 100644
index 000000000..e13f36a7c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug430120.js
@@ -0,0 +1,135 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+const BLOCKLIST_TIMER                 = "blocklist-background-update-timer";
+const PREF_BLOCKLIST_URL              = "extensions.blocklist.url";
+const PREF_BLOCKLIST_ENABLED          = "extensions.blocklist.enabled";
+const PREF_APP_DISTRIBUTION           = "distribution.id";
+const PREF_APP_DISTRIBUTION_VERSION   = "distribution.version";
+const PREF_APP_UPDATE_CHANNEL         = "app.update.channel";
+const PREF_GENERAL_USERAGENT_LOCALE   = "general.useragent.locale";
+const CATEGORY_UPDATE_TIMER           = "update-timer";
+
+// Get the HTTP server.
+Components.utils.import("resource://testing-common/httpd.js");
+Components.utils.import("resource://testing-common/MockRegistrar.jsm");
+var testserver;
+var gOSVersion;
+var gBlocklist;
+
+// This is a replacement for the timer service so we can trigger timers
+var timerService = {
+
+  hasTimer: function(id) {
+    var catMan = Components.classes["@mozilla.org/categorymanager;1"]
+                           .getService(Components.interfaces.nsICategoryManager);
+    var entries = catMan.enumerateCategory(CATEGORY_UPDATE_TIMER);
+    while (entries.hasMoreElements()) {
+      var entry = entries.getNext().QueryInterface(Components.interfaces.nsISupportsCString).data;
+      var value = catMan.getCategoryEntry(CATEGORY_UPDATE_TIMER, entry);
+      var timerID = value.split(",")[2];
+      if (id == timerID) {
+        return true;
+      }
+    }
+    return false;
+  },
+
+  fireTimer: function(id) {
+    gBlocklist.QueryInterface(Components.interfaces.nsITimerCallback).notify(null);
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Components.interfaces.nsIUpdateTimerManager)
+     || iid.equals(Components.interfaces.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+MockRegistrar.register("@mozilla.org/updates/timer-manager;1", timerService);
+
+function failHandler(metadata, response) {
+  do_throw("Should not have attempted to retrieve the blocklist when it is disabled");
+}
+
+function pathHandler(metadata, response) {
+  var ABI = "noarch-spidermonkey";
+  // the blacklist service special-cases ABI for Universal binaries,
+  // so do the same here.
+  if ("@mozilla.org/xpcom/mac-utils;1" in Components.classes) {
+    var macutils = Components.classes["@mozilla.org/xpcom/mac-utils;1"]
+                             .getService(Components.interfaces.nsIMacUtils);
+    if (macutils.isUniversalBinary)
+      ABI += "-u-" + macutils.architecturesInBinary;
+  }
+  do_check_eq(metadata.queryString,
+              "xpcshell@tests.mozilla.org&1&XPCShell&1&" +
+              gAppInfo.appBuildID + "&" +
+              "XPCShell_" + ABI + "&locale&updatechannel&" +
+              gOSVersion + "&1.9&distribution&distribution-version");
+  gBlocklist.observe(null, "quit-application", "");
+  gBlocklist.observe(null, "xpcom-shutdown", "");
+  testserver.stop(do_test_finished);
+}
+
+function run_test() {
+  var osVersion;
+  var sysInfo = Components.classes["@mozilla.org/system-info;1"]
+                          .getService(Components.interfaces.nsIPropertyBag2);
+  try {
+    osVersion = sysInfo.getProperty("name") + " " + sysInfo.getProperty("version");
+    if (osVersion) {
+      try {
+        osVersion += " (" + sysInfo.getProperty("secondaryLibrary") + ")";
+      }
+      catch (e) {
+      }
+      gOSVersion = encodeURIComponent(osVersion);
+    }
+  }
+  catch (e) {
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  testserver = new HttpServer();
+  testserver.registerPathHandler("/1", failHandler);
+  testserver.registerPathHandler("/2", pathHandler);
+  testserver.start(-1);
+  gPort = testserver.identity.primaryPort;
+
+  // Initialise the blocklist service
+  gBlocklist = Components.classes["@mozilla.org/extensions/blocklist;1"]
+                         .getService(Components.interfaces.nsIBlocklistService)
+                         .QueryInterface(Components.interfaces.nsIObserver);
+  gBlocklist.observe(null, "profile-after-change", "");
+
+  do_check_true(timerService.hasTimer(BLOCKLIST_TIMER));
+
+  do_test_pending();
+
+  // This should have no effect as the blocklist is disabled
+  Services.prefs.setCharPref(PREF_BLOCKLIST_URL, "http://localhost:" + gPort + "/1");
+  Services.prefs.setBoolPref(PREF_BLOCKLIST_ENABLED, false);
+  timerService.fireTimer(BLOCKLIST_TIMER);
+
+  // Some values have to be on the default branch to work
+  var defaults = Services.prefs.QueryInterface(Components.interfaces.nsIPrefService)
+                       .getDefaultBranch(null);
+  defaults.setCharPref(PREF_APP_UPDATE_CHANNEL, "updatechannel");
+  defaults.setCharPref(PREF_APP_DISTRIBUTION, "distribution");
+  defaults.setCharPref(PREF_APP_DISTRIBUTION_VERSION, "distribution-version");
+  defaults.setCharPref(PREF_GENERAL_USERAGENT_LOCALE, "locale");
+
+  // This should correctly escape everything
+  Services.prefs.setCharPref(PREF_BLOCKLIST_URL, "http://localhost:" + gPort + "/2?" +
+                     "%APP_ID%&%APP_VERSION%&%PRODUCT%&%VERSION%&%BUILD_ID%&" +
+                     "%BUILD_TARGET%&%LOCALE%&%CHANNEL%&" +
+                     "%OS_VERSION%&%PLATFORM_VERSION%&%DISTRIBUTION%&%DISTRIBUTION_VERSION%");
+  Services.prefs.setBoolPref(PREF_BLOCKLIST_ENABLED, true);
+  timerService.fireTimer(BLOCKLIST_TIMER);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug449027.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug449027.js
new file mode 100644
index 000000000..1512a7f92
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug449027.js
@@ -0,0 +1,429 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+const URI_EXTENSION_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+
+Cu.import("resource://testing-common/httpd.js");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+
+var ADDONS = [{
+  id: "test_bug449027_1@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 1",
+  version: "5",
+  start: false,
+  appBlocks: false,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_2@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 2",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_3@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 3",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_4@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 4",
+  version: "5",
+  start: false,
+  appBlocks: false,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_5@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 5",
+  version: "5",
+  start: false,
+  appBlocks: false,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_6@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 6",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_7@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 7",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_8@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 8",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_9@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 9",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_10@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 10",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_11@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 11",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_12@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 12",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_13@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 13",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_14@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 14",
+  version: "5",
+  start: false,
+  appBlocks: false,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_15@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 15",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: true
+}, {
+  id: "test_bug449027_16@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 16",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: true
+}, {
+  id: "test_bug449027_17@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 17",
+  version: "5",
+  start: false,
+  appBlocks: false,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_18@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 18",
+  version: "5",
+  start: false,
+  appBlocks: false,
+  toolkitBlocks: false
+}, {
+  id: "test_bug449027_19@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 19",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: true
+}, {
+  id: "test_bug449027_20@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 20",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: true
+}, {
+  id: "test_bug449027_21@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 21",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: true
+}, {
+  id: "test_bug449027_22@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 22",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: true
+}, {
+  id: "test_bug449027_23@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 23",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: true
+}, {
+  id: "test_bug449027_24@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 24",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: true
+}, {
+  id: "test_bug449027_25@tests.mozilla.org",
+  name: "Bug 449027 Addon Test 25",
+  version: "5",
+  start: false,
+  appBlocks: true,
+  toolkitBlocks: true
+}];
+
+function MockPluginTag(name, version, start, appBlocks, toolkitBlocks)
+{
+  this.name = name;
+  this.version = version;
+  this.start = start;
+  this.appBlocks = appBlocks;
+  this.toolkitBlocks = toolkitBlocks;
+}
+Object.defineProperty(MockPluginTag.prototype, "blocklisted", {
+  get: function MockPluginTag_getBlocklisted() {
+    let bls = AM_Cc["@mozilla.org/extensions/blocklist;1"].getService(Ci.nsIBlocklistService);
+    return bls.getPluginBlocklistState(this) == bls.STATE_BLOCKED;
+  }
+});
+
+var PLUGINS = [
+  new MockPluginTag("test_bug449027_1", "5", false, false, false),
+  new MockPluginTag("test_bug449027_2", "5", false, true, false),
+  new MockPluginTag("test_bug449027_3", "5", false, true, false),
+  new MockPluginTag("test_bug449027_4", "5", false, false, false),
+  new MockPluginTag("test_bug449027_5", "5", false, false, false),
+  new MockPluginTag("test_bug449027_6", "5", false, true, false),
+  new MockPluginTag("test_bug449027_7", "5", false, true, false),
+  new MockPluginTag("test_bug449027_8", "5", false, true, false),
+  new MockPluginTag("test_bug449027_9", "5", false, true, false),
+  new MockPluginTag("test_bug449027_10", "5", false, true, false),
+  new MockPluginTag("test_bug449027_11", "5", false, true, false),
+  new MockPluginTag("test_bug449027_12", "5", false, true, false),
+  new MockPluginTag("test_bug449027_13", "5", false, true, false),
+  new MockPluginTag("test_bug449027_14", "5", false, false, false),
+  new MockPluginTag("test_bug449027_15", "5", false, true, true),
+  new MockPluginTag("test_bug449027_16", "5", false, true, true),
+  new MockPluginTag("test_bug449027_17", "5", false, false, false),
+  new MockPluginTag("test_bug449027_18", "5", false, false, false),
+  new MockPluginTag("test_bug449027_19", "5", false, true, true),
+  new MockPluginTag("test_bug449027_20", "5", false, true, true),
+  new MockPluginTag("test_bug449027_21", "5", false, true, true),
+  new MockPluginTag("test_bug449027_22", "5", false, true, true),
+  new MockPluginTag("test_bug449027_23", "5", false, true, true),
+  new MockPluginTag("test_bug449027_24", "5", false, true, true),
+  new MockPluginTag("test_bug449027_25", "5", false, true, true)
+];
+
+var gCallback = null;
+var gTestserver = null;
+var gNewBlocks = [];
+
+// A fake plugin host for the blocklist service to use
+var PluginHost = {
+  getPluginTags: function(countRef) {
+    countRef.value = PLUGINS.length;
+    return PLUGINS;
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIPluginHost)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+// Don't need the full interface, attempts to call other methods will just
+// throw which is just fine
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, args) {
+    // Should be called to list the newly blocklisted items
+    do_check_eq(url, URI_EXTENSION_BLOCKLIST_DIALOG);
+    do_check_neq(gCallback, null);
+
+    args = args.wrappedJSObject;
+
+    gNewBlocks = [];
+    var list = args.list;
+    for (let listItem of list)
+      gNewBlocks.push(listItem.name + " " + listItem.version);
+
+    // Call the callback after the blocklist has finished up
+    do_timeout(0, gCallback);
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+MockRegistrar.register("@mozilla.org/plugin/host;1", PluginHost);
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+function create_addon(addon) {
+  var installrdf = "<?xml version=\"1.0\"?>\n" +
+                   "\n" +
+                   "<RDF xmlns=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n" +
+                   "     xmlns:em=\"http://www.mozilla.org/2004/em-rdf#\">\n" +
+                   "  <Description about=\"urn:mozilla:install-manifest\">\n" +
+                   "    <em:id>" + addon.id + "</em:id>\n" +
+                   "    <em:version>" + addon.version + "</em:version>\n" +
+                   "    <em:targetApplication>\n" +
+                   "      <Description>\n" +
+                   "        <em:id>xpcshell@tests.mozilla.org</em:id>\n" +
+                   "        <em:minVersion>3</em:minVersion>\n" +
+                   "        <em:maxVersion>3</em:maxVersion>\n" +
+                   "      </Description>\n" +
+                   "    </em:targetApplication>\n" +
+                   "    <em:name>" + addon.name + "</em:name>\n" +
+                   "  </Description>\n" +
+                   "</RDF>\n";
+  var target = gProfD.clone();
+  target.append("extensions");
+  target.append(addon.id);
+  target.append("install.rdf");
+  target.create(target.NORMAL_FILE_TYPE, 0o644);
+  var stream = Components.classes["@mozilla.org/network/file-output-stream;1"]
+                         .createInstance(Ci.nsIFileOutputStream);
+  stream.init(target, 0x04 | 0x08 | 0x20, 0o664, 0); // write, create, truncate
+  stream.write(installrdf, installrdf.length);
+  stream.close();
+}
+
+/**
+ * Checks that items are blocklisted correctly according to the current test.
+ * If a lastTest is provided checks that the notification dialog got passed
+ * the newly blocked items compared to the previous test.
+ */
+function check_state(test, lastTest, callback) {
+  AddonManager.getAddonsByIDs(ADDONS.map(a => a.id), function(addons) {
+    for (var i = 0; i < ADDONS.length; i++) {
+      var blocked = addons[i].blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED;
+      if (blocked != ADDONS[i][test])
+        do_throw("Blocklist state did not match expected for extension " + (i + 1) + ", test " + test);
+    }
+
+    for (i = 0; i < PLUGINS.length; i++) {
+      if (PLUGINS[i].blocklisted != PLUGINS[i][test])
+        do_throw("Blocklist state did not match expected for plugin " + (i + 1) + ", test " + test);
+    }
+
+    if (lastTest) {
+      var expected = 0;
+      for (i = 0; i < ADDONS.length; i++) {
+        if (ADDONS[i][test] && !ADDONS[i][lastTest]) {
+          if (gNewBlocks.indexOf(ADDONS[i].name + " " + ADDONS[i].version) < 0)
+            do_throw("Addon " + (i + 1) + " should have been listed in the blocklist notification for test " + test);
+          expected++;
+        }
+      }
+
+      for (i = 0; i < PLUGINS.length; i++) {
+        if (PLUGINS[i][test] && !PLUGINS[i][lastTest]) {
+          if (gNewBlocks.indexOf(PLUGINS[i].name + " " + PLUGINS[i].version) < 0)
+            do_throw("Plugin " + (i + 1) + " should have been listed in the blocklist notification for test " + test);
+          expected++;
+        }
+      }
+
+      do_check_eq(expected, gNewBlocks.length);
+    }
+    do_execute_soon(callback);
+  });
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" + gPort + "/data/" + file);
+  var blocklist = Components.classes["@mozilla.org/extensions/blocklist;1"]
+                            .getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+function run_test() {
+  // Setup for test
+  dump("Setting up tests\n");
+  // Rather than keeping lots of identical add-ons in version control, just
+  // write them into the profile.
+  for (let addon of ADDONS)
+    create_addon(addon);
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  gTestserver = new HttpServer();
+  gTestserver.registerDirectory("/data/", do_get_file("data"));
+  gTestserver.start(-1);
+  gPort = gTestserver.identity.primaryPort;
+
+  do_test_pending();
+  check_test_pt1();
+}
+
+/**
+ * Checks the initial state is correct
+ */
+function check_test_pt1() {
+  dump("Checking pt 1\n");
+
+  AddonManager.getAddonsByIDs(ADDONS.map(a => a.id), function(addons) {
+    for (var i = 0; i < ADDONS.length; i++) {
+      if (!addons[i])
+        do_throw("Addon " + (i + 1) + " did not get installed correctly");
+    }
+
+    do_execute_soon(function checkstate1() { check_state("start", null, run_test_pt2); });
+  });
+}
+
+/**
+ * Load the toolkit based blocks
+ */
+function run_test_pt2() {
+  dump("Running test pt 2\n");
+  gCallback = check_test_pt2;
+  load_blocklist("test_bug449027_toolkit.xml");
+}
+
+function check_test_pt2() {
+  dump("Checking pt 2\n");
+  check_state("toolkitBlocks", "start", run_test_pt3);
+}
+
+/**
+ * Load the application based blocks
+ */
+function run_test_pt3() {
+  dump("Running test pt 3\n");
+  gCallback = check_test_pt3;
+  load_blocklist("test_bug449027_app.xml");
+}
+
+function check_test_pt3() {
+  dump("Checking pt 3\n");
+  check_state("appBlocks", "toolkitBlocks", end_test);
+}
+
+function end_test() {
+  gTestserver.stop(do_test_finished);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug455906.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug455906.js
new file mode 100644
index 000000000..06e29b376
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug455906.js
@@ -0,0 +1,517 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+var Cr = Components.results;
+
+const URI_EXTENSION_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+Cu.import("resource://testing-common/httpd.js");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+
+// register static files with server and interpolate port numbers in them
+mapFile("/data/bug455906_warn.xml", gTestserver);
+mapFile("/data/bug455906_start.xml", gTestserver);
+mapFile("/data/bug455906_block.xml", gTestserver);
+mapFile("/data/bug455906_empty.xml", gTestserver);
+
+// Workaround for Bug 658720 - URL formatter can leak during xpcshell tests
+const PREF_BLOCKLIST_ITEM_URL = "extensions.blocklist.itemURL";
+Services.prefs.setCharPref(PREF_BLOCKLIST_ITEM_URL, "http://localhost:" + gPort + "/blocklist/%blockID%");
+
+var ADDONS = [{
+  // Tests how the blocklist affects a disabled add-on
+  id: "test_bug455906_1@tests.mozilla.org",
+  name: "Bug 455906 Addon Test 1",
+  version: "5",
+  appVersion: "3"
+}, {
+  // Tests how the blocklist affects an enabled add-on
+  id: "test_bug455906_2@tests.mozilla.org",
+  name: "Bug 455906 Addon Test 2",
+  version: "5",
+  appVersion: "3"
+}, {
+  // Tests how the blocklist affects an enabled add-on, to be disabled by the notification
+  id: "test_bug455906_3@tests.mozilla.org",
+  name: "Bug 455906 Addon Test 3",
+  version: "5",
+  appVersion: "3"
+}, {
+  // Tests how the blocklist affects a disabled add-on that was already warned about
+  id: "test_bug455906_4@tests.mozilla.org",
+  name: "Bug 455906 Addon Test 4",
+  version: "5",
+  appVersion: "3"
+}, {
+  // Tests how the blocklist affects an enabled add-on that was already warned about
+  id: "test_bug455906_5@tests.mozilla.org",
+  name: "Bug 455906 Addon Test 5",
+  version: "5",
+  appVersion: "3"
+}, {
+  // Tests how the blocklist affects an already blocked add-on
+  id: "test_bug455906_6@tests.mozilla.org",
+  name: "Bug 455906 Addon Test 6",
+  version: "5",
+  appVersion: "3"
+}, {
+  // Tests how the blocklist affects an incompatible add-on
+  id: "test_bug455906_7@tests.mozilla.org",
+  name: "Bug 455906 Addon Test 7",
+  version: "5",
+  appVersion: "2"
+}, {
+  // Spare add-on used to ensure we get a notification when switching lists
+  id: "dummy_bug455906_1@tests.mozilla.org",
+  name: "Dummy Addon 1",
+  version: "5",
+  appVersion: "3"
+}, {
+  // Spare add-on used to ensure we get a notification when switching lists
+  id: "dummy_bug455906_2@tests.mozilla.org",
+  name: "Dummy Addon 2",
+  version: "5",
+  appVersion: "3"
+}];
+
+function MockPlugin(name, version, enabledState) {
+  this.name = name;
+  this.version = version;
+  this.enabledState = enabledState;
+}
+Object.defineProperty(MockPlugin.prototype, "blocklisted", {
+  get: function MockPlugin_getBlocklisted() {
+    let bls = Cc["@mozilla.org/extensions/blocklist;1"].getService(Ci.nsIBlocklistService);
+    return bls.getPluginBlocklistState(this) == bls.STATE_BLOCKED;
+  }
+});
+Object.defineProperty(MockPlugin.prototype, "disabled", {
+  get: function MockPlugin_getDisabled() {
+    return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+  }
+});
+
+var PLUGINS = [
+  // Tests how the blocklist affects a disabled plugin
+  new MockPlugin("test_bug455906_1", "5", Ci.nsIPluginTag.STATE_DISABLED),
+  // Tests how the blocklist affects an enabled plugin
+  new MockPlugin("test_bug455906_2", "5", Ci.nsIPluginTag.STATE_ENABLED),
+  // Tests how the blocklist affects an enabled plugin, to be disabled by the notification
+  new MockPlugin("test_bug455906_3", "5", Ci.nsIPluginTag.STATE_ENABLED),
+  // Tests how the blocklist affects a disabled plugin that was already warned about
+  new MockPlugin("test_bug455906_4", "5", Ci.nsIPluginTag.STATE_DISABLED),
+  // Tests how the blocklist affects an enabled plugin that was already warned about
+  new MockPlugin("test_bug455906_5", "5", Ci.nsIPluginTag.STATE_ENABLED),
+  // Tests how the blocklist affects an already blocked plugin
+  new MockPlugin("test_bug455906_6", "5", Ci.nsIPluginTag.STATE_ENABLED)
+];
+
+var gNotificationCheck = null;
+var gTestCheck = null;
+
+// A fake plugin host for the blocklist service to use
+var PluginHost = {
+  getPluginTags: function(countRef) {
+    countRef.value = PLUGINS.length;
+    return PLUGINS;
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIPluginHost)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+// Don't need the full interface, attempts to call other methods will just
+// throw which is just fine
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, windowArguments) {
+    // Should be called to list the newly blocklisted items
+    do_check_eq(url, URI_EXTENSION_BLOCKLIST_DIALOG);
+
+    if (gNotificationCheck) {
+      var args = windowArguments.wrappedJSObject;
+      gNotificationCheck(args);
+    }
+
+    // run the code after the blocklist is closed
+    Services.obs.notifyObservers(null, "addon-blocklist-closed", null);
+
+    // Call the next test after the blocklist has finished up
+    do_timeout(0, gTestCheck);
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+MockRegistrar.register("@mozilla.org/plugin/host;1", PluginHost);
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+function create_addon(addon) {
+  var installrdf = "<?xml version=\"1.0\"?>\n" +
+                   "\n" +
+                   "<RDF xmlns=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n" +
+                   "     xmlns:em=\"http://www.mozilla.org/2004/em-rdf#\">\n" +
+                   "  <Description about=\"urn:mozilla:install-manifest\">\n" +
+                   "    <em:id>" + addon.id + "</em:id>\n" +
+                   "    <em:version>" + addon.version + "</em:version>\n" +
+                   "    <em:targetApplication>\n" +
+                   "      <Description>\n" +
+                   "        <em:id>xpcshell@tests.mozilla.org</em:id>\n" +
+                   "        <em:minVersion>" + addon.appVersion + "</em:minVersion>\n" +
+                   "        <em:maxVersion>" + addon.appVersion + "</em:maxVersion>\n" +
+                   "      </Description>\n" +
+                   "    </em:targetApplication>\n" +
+                   "    <em:name>" + addon.name + "</em:name>\n" +
+                   "  </Description>\n" +
+                   "</RDF>\n";
+  var target = gProfD.clone();
+  target.append("extensions");
+  target.append(addon.id);
+  target.append("install.rdf");
+  target.create(target.NORMAL_FILE_TYPE, FileUtils.PERMS_FILE);
+  var stream = Cc["@mozilla.org/network/file-output-stream;1"].
+               createInstance(Ci.nsIFileOutputStream);
+  stream.init(target,
+              FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE | FileUtils.MODE_TRUNCATE,
+              FileUtils.PERMS_FILE, 0);
+  stream.write(installrdf, installrdf.length);
+  stream.close();
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" + gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+function check_addon_state(addon) {
+  return addon.userDisabled + "," + addon.softDisabled + "," + addon.appDisabled;
+}
+
+function check_plugin_state(plugin) {
+  return plugin.disabled + "," + plugin.blocklisted;
+}
+
+function create_blocklistURL(blockID) {
+  let url = Services.urlFormatter.formatURLPref(PREF_BLOCKLIST_ITEM_URL);
+  url = url.replace(/%blockID%/g, blockID);
+  return url;
+}
+
+// Performs the initial setup
+function run_test() {
+  // Setup for test
+  dump("Setting up tests\n");
+  // Rather than keeping lots of identical add-ons in version control, just
+  // write them into the profile.
+  for (let addon of ADDONS)
+    create_addon(addon);
+
+  // Copy the initial blocklist into the profile to check add-ons start in the
+  // right state.
+  copyBlocklistToProfile(do_get_file("data/bug455906_start.xml"));
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+  check_test_pt1();
+}
+
+// Before every main test this is the state the add-ons are meant to be in
+function check_initial_state(callback) {
+  AddonManager.getAddonsByIDs(ADDONS.map(a => a.id), function(addons) {
+    do_check_eq(check_addon_state(addons[0]), "true,false,false");
+    do_check_eq(check_addon_state(addons[1]), "false,false,false");
+    do_check_eq(check_addon_state(addons[2]), "false,false,false");
+    do_check_eq(check_addon_state(addons[3]), "true,true,false");
+    do_check_eq(check_addon_state(addons[4]), "false,false,false");
+    do_check_eq(check_addon_state(addons[5]), "false,false,true");
+    do_check_eq(check_addon_state(addons[6]), "false,false,true");
+
+    do_check_eq(check_plugin_state(PLUGINS[0]), "true,false");
+    do_check_eq(check_plugin_state(PLUGINS[1]), "false,false");
+    do_check_eq(check_plugin_state(PLUGINS[2]), "false,false");
+    do_check_eq(check_plugin_state(PLUGINS[3]), "true,false");
+    do_check_eq(check_plugin_state(PLUGINS[4]), "false,false");
+    do_check_eq(check_plugin_state(PLUGINS[5]), "false,true");
+
+    callback();
+  });
+}
+
+// Tests the add-ons were installed and the initial blocklist applied as expected
+function check_test_pt1() {
+  dump("Checking pt 1\n");
+
+  AddonManager.getAddonsByIDs(ADDONS.map(a => a.id), callback_soon(function(addons) {
+    for (var i = 0; i < ADDONS.length; i++) {
+      if (!addons[i])
+        do_throw("Addon " + (i + 1) + " did not get installed correctly");
+    }
+
+    do_check_eq(check_addon_state(addons[0]), "false,false,false");
+    do_check_eq(check_addon_state(addons[1]), "false,false,false");
+    do_check_eq(check_addon_state(addons[2]), "false,false,false");
+
+    // Warn add-ons should be soft disabled automatically
+    do_check_eq(check_addon_state(addons[3]), "true,true,false");
+    do_check_eq(check_addon_state(addons[4]), "true,true,false");
+
+    // Blocked and incompatible should be app disabled only
+    do_check_eq(check_addon_state(addons[5]), "false,false,true");
+    do_check_eq(check_addon_state(addons[6]), "false,false,true");
+
+    // We've overridden the plugin host so we cannot tell what that would have
+    // initialised the plugins as
+
+    // Put the add-ons into the base state
+    addons[0].userDisabled = true;
+    addons[4].userDisabled = false;
+
+    restartManager();
+    check_initial_state(function() {
+      gNotificationCheck = check_notification_pt2;
+      gTestCheck = check_test_pt2;
+      load_blocklist("bug455906_warn.xml");
+    });
+  }));
+}
+
+function check_notification_pt2(args) {
+  dump("Checking notification pt 2\n");
+  do_check_eq(args.list.length, 4);
+
+  for (let addon of args.list) {
+    if (addon.item instanceof Ci.nsIPluginTag) {
+      switch (addon.item.name) {
+        case "test_bug455906_2":
+          do_check_false(addon.blocked);
+          break;
+        case "test_bug455906_3":
+          do_check_false(addon.blocked);
+          addon.disable = true;
+          break;
+        default:
+          do_throw("Unknown addon: " + addon.item.name);
+      }
+    }
+    else {
+      switch (addon.item.id) {
+        case "test_bug455906_2@tests.mozilla.org":
+          do_check_false(addon.blocked);
+          break;
+        case "test_bug455906_3@tests.mozilla.org":
+          do_check_false(addon.blocked);
+          addon.disable = true;
+          break;
+        default:
+          do_throw("Unknown addon: " + addon.item.id);
+      }
+    }
+  }
+}
+
+function check_test_pt2() {
+  restartManager();
+  dump("Checking results pt 2\n");
+
+  AddonManager.getAddonsByIDs(ADDONS.map(a => a.id), callback_soon(function(addons) {
+    // Should have disabled this add-on as requested
+    do_check_eq(check_addon_state(addons[2]), "true,true,false");
+    do_check_eq(check_plugin_state(PLUGINS[2]), "true,false");
+
+    // The blocked add-on should have changed to soft disabled
+    do_check_eq(check_addon_state(addons[5]), "true,true,false");
+    do_check_eq(check_addon_state(addons[6]), "true,true,true");
+    do_check_eq(check_plugin_state(PLUGINS[5]), "true,false");
+
+    // These should have been unchanged
+    do_check_eq(check_addon_state(addons[0]), "true,false,false");
+    do_check_eq(check_addon_state(addons[1]), "false,false,false");
+    do_check_eq(check_addon_state(addons[3]), "true,true,false");
+    do_check_eq(check_addon_state(addons[4]), "false,false,false");
+    do_check_eq(check_plugin_state(PLUGINS[0]), "true,false");
+    do_check_eq(check_plugin_state(PLUGINS[1]), "false,false");
+    do_check_eq(check_plugin_state(PLUGINS[3]), "true,false");
+    do_check_eq(check_plugin_state(PLUGINS[4]), "false,false");
+
+    // Back to starting state
+    addons[2].userDisabled = false;
+    addons[5].userDisabled = false;
+    PLUGINS[2].enabledState = Ci.nsIPluginTag.STATE_ENABLED;
+    PLUGINS[5].enabledState = Ci.nsIPluginTag.STATE_ENABLED;
+    restartManager();
+    gNotificationCheck = null;
+    gTestCheck = run_test_pt3;
+    load_blocklist("bug455906_start.xml");
+  }));
+}
+
+function run_test_pt3() {
+  restartManager();
+  check_initial_state(function() {
+    gNotificationCheck = check_notification_pt3;
+    gTestCheck = check_test_pt3;
+    load_blocklist("bug455906_block.xml");
+  });
+}
+
+function check_notification_pt3(args) {
+  dump("Checking notification pt 3\n");
+  do_check_eq(args.list.length, 6);
+
+  for (let addon of args.list) {
+    if (addon.item instanceof Ci.nsIPluginTag) {
+      switch (addon.item.name) {
+        case "test_bug455906_2":
+          do_check_true(addon.blocked);
+          break;
+        case "test_bug455906_3":
+          do_check_true(addon.blocked);
+          break;
+        case "test_bug455906_5":
+          do_check_true(addon.blocked);
+          break;
+        default:
+          do_throw("Unknown addon: " + addon.item.name);
+      }
+    }
+    else {
+      switch (addon.item.id) {
+        case "test_bug455906_2@tests.mozilla.org":
+          do_check_true(addon.blocked);
+          break;
+        case "test_bug455906_3@tests.mozilla.org":
+          do_check_true(addon.blocked);
+          break;
+        case "test_bug455906_5@tests.mozilla.org":
+          do_check_true(addon.blocked);
+          break;
+        default:
+          do_throw("Unknown addon: " + addon.item.id);
+      }
+    }
+  }
+}
+
+function check_test_pt3() {
+  restartManager();
+  dump("Checking results pt 3\n");
+
+  let blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsIBlocklistService);
+
+  AddonManager.getAddonsByIDs(ADDONS.map(a => a.id), function(addons) {
+    // All should have gained the blocklist state, user disabled as previously
+    do_check_eq(check_addon_state(addons[0]), "true,false,true");
+    do_check_eq(check_addon_state(addons[1]), "false,false,true");
+    do_check_eq(check_addon_state(addons[2]), "false,false,true");
+    do_check_eq(check_addon_state(addons[4]), "false,false,true");
+    do_check_eq(check_plugin_state(PLUGINS[0]), "true,true");
+    do_check_eq(check_plugin_state(PLUGINS[1]), "false,true");
+    do_check_eq(check_plugin_state(PLUGINS[2]), "false,true");
+    do_check_eq(check_plugin_state(PLUGINS[3]), "true,true");
+    do_check_eq(check_plugin_state(PLUGINS[4]), "false,true");
+
+    // Should have gained the blocklist state but no longer be soft disabled
+    do_check_eq(check_addon_state(addons[3]), "false,false,true");
+
+    // Check blockIDs are correct
+    do_check_eq(blocklist.getAddonBlocklistURL(addons[0]), create_blocklistURL(addons[0].id));
+    do_check_eq(blocklist.getAddonBlocklistURL(addons[1]), create_blocklistURL(addons[1].id));
+    do_check_eq(blocklist.getAddonBlocklistURL(addons[2]), create_blocklistURL(addons[2].id));
+    do_check_eq(blocklist.getAddonBlocklistURL(addons[3]), create_blocklistURL(addons[3].id));
+    do_check_eq(blocklist.getAddonBlocklistURL(addons[4]), create_blocklistURL(addons[4].id));
+
+    // All plugins have the same blockID on the test
+    do_check_eq(blocklist.getPluginBlocklistURL(PLUGINS[0]), create_blocklistURL('test_bug455906_plugin'));
+    do_check_eq(blocklist.getPluginBlocklistURL(PLUGINS[1]), create_blocklistURL('test_bug455906_plugin'));
+    do_check_eq(blocklist.getPluginBlocklistURL(PLUGINS[2]), create_blocklistURL('test_bug455906_plugin'));
+    do_check_eq(blocklist.getPluginBlocklistURL(PLUGINS[3]), create_blocklistURL('test_bug455906_plugin'));
+    do_check_eq(blocklist.getPluginBlocklistURL(PLUGINS[4]), create_blocklistURL('test_bug455906_plugin'));
+
+    // Shouldn't be changed
+    do_check_eq(check_addon_state(addons[5]), "false,false,true");
+    do_check_eq(check_addon_state(addons[6]), "false,false,true");
+    do_check_eq(check_plugin_state(PLUGINS[5]), "false,true");
+
+    // Back to starting state
+    gNotificationCheck = null;
+    gTestCheck = run_test_pt4;
+    load_blocklist("bug455906_start.xml");
+  });
+}
+
+function run_test_pt4() {
+  AddonManager.getAddonByID(ADDONS[4].id, callback_soon(function(addon) {
+    addon.userDisabled = false;
+    PLUGINS[4].enabledState = Ci.nsIPluginTag.STATE_ENABLED;
+    restartManager();
+    check_initial_state(function() {
+      gNotificationCheck = check_notification_pt4;
+      gTestCheck = check_test_pt4;
+      load_blocklist("bug455906_empty.xml");
+    });
+  }));
+}
+
+function check_notification_pt4(args) {
+  dump("Checking notification pt 4\n");
+
+  // Should be just the dummy add-on to force this notification
+  do_check_eq(args.list.length, 1);
+  do_check_false(args.list[0].item instanceof Ci.nsIPluginTag);
+  do_check_eq(args.list[0].item.id, "dummy_bug455906_2@tests.mozilla.org");
+}
+
+function check_test_pt4() {
+  restartManager();
+  dump("Checking results pt 4\n");
+
+  AddonManager.getAddonsByIDs(ADDONS.map(a => a.id), function(addons) {
+    // This should have become unblocked
+    do_check_eq(check_addon_state(addons[5]), "false,false,false");
+    do_check_eq(check_plugin_state(PLUGINS[5]), "false,false");
+
+    // Should get re-enabled
+    do_check_eq(check_addon_state(addons[3]), "false,false,false");
+
+    // No change for anything else
+    do_check_eq(check_addon_state(addons[0]), "true,false,false");
+    do_check_eq(check_addon_state(addons[1]), "false,false,false");
+    do_check_eq(check_addon_state(addons[2]), "false,false,false");
+    do_check_eq(check_addon_state(addons[4]), "false,false,false");
+    do_check_eq(check_addon_state(addons[6]), "false,false,true");
+    do_check_eq(check_plugin_state(PLUGINS[0]), "true,false");
+    do_check_eq(check_plugin_state(PLUGINS[1]), "false,false");
+    do_check_eq(check_plugin_state(PLUGINS[2]), "false,false");
+    do_check_eq(check_plugin_state(PLUGINS[3]), "true,false");
+    do_check_eq(check_plugin_state(PLUGINS[4]), "false,false");
+
+    finish();
+  });
+}
+
+function finish() {
+  gTestserver.stop(do_test_finished);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug465190.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug465190.js
new file mode 100644
index 000000000..e8e2353e2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug465190.js
@@ -0,0 +1,39 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+var installLocation = gProfD.clone();
+installLocation.append("baddir");
+installLocation.create(Components.interfaces.nsIFile.NORMAL_FILE_TYPE, 0o664);
+
+var dirProvider2 = {
+  getFile: function(prop, persistent) {
+    persistent.value = true;
+    if (prop == "XREUSysExt")
+      return installLocation.clone();
+    return null;
+  },
+  QueryInterface: function(iid) {
+    if (iid.equals(Components.interfaces.nsIDirectoryServiceProvider) ||
+        iid.equals(Components.interfaces.nsISupports)) {
+      return this;
+    }
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+};
+Services.dirsvc.QueryInterface(Components.interfaces.nsIDirectoryService)
+               .registerProvider(dirProvider2);
+
+function run_test()
+{
+  var log = gProfD.clone();
+  log.append("extensions.log");
+  do_check_false(log.exists());
+
+  // Setup for test
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1");
+
+  startupManager();
+  do_check_false(log.exists());
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug468528.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug468528.js
new file mode 100644
index 000000000..01c976a17
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug468528.js
@@ -0,0 +1,58 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const nsIBLS = Components.interfaces.nsIBlocklistService;
+
+var PLUGINS = [{
+  // Normal blacklisted plugin, before an invalid regexp
+  name: "test_bug468528_1",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // Normal blacklisted plugin, with an invalid regexp
+  name: "test_bug468528_2",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // Normal blacklisted plugin, after an invalid regexp
+  name: "test_bug468528_3",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // Non-blocklisted plugin
+  name: "test_bug468528_4",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+}];
+
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  // We cannot force the blocklist to update so just copy our test list to the profile
+  copyBlocklistToProfile(do_get_file("data/test_bug468528.xml"));
+
+  var blocklist = Components.classes["@mozilla.org/extensions/blocklist;1"]
+                            .getService(nsIBLS);
+
+  // blocked (sanity check)
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[0], "1", "1.9") == nsIBLS.STATE_BLOCKED);
+
+  // not blocked - won't match due to invalid regexp
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[1], "1", "1.9") == nsIBLS.STATE_NOT_BLOCKED);
+
+  // blocked - the invalid regexp for the previous item shouldn't affect this one
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[2], "1", "1.9") == nsIBLS.STATE_BLOCKED);
+
+  // not blocked - the previous invalid regexp shouldn't act as a wildcard
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[3], "1", "1.9") == nsIBLS.STATE_NOT_BLOCKED);
+
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_1.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_1.js
new file mode 100644
index 000000000..920c3731a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_1.js
@@ -0,0 +1,49 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+
+var ADDONS = [
+  "test_bug470377_1",
+  "test_bug470377_2",
+  "test_bug470377_3",
+  "test_bug470377_4",
+  "test_bug470377_5",
+];
+
+Components.utils.import("resource://testing-common/httpd.js");
+var server;
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  server = new HttpServer();
+  server.registerDirectory("/", do_get_file("data/test_bug470377"));
+  server.start(-1);
+
+  startupManager();
+
+  installAllFiles(ADDONS.map(a => do_get_addon(a)), function() {
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["bug470377_1@tests.mozilla.org",
+                                 "bug470377_2@tests.mozilla.org",
+                                 "bug470377_3@tests.mozilla.org",
+                                 "bug470377_4@tests.mozilla.org",
+                                 "bug470377_5@tests.mozilla.org"],
+                                 function([a1, a2, a3, a4, a5]) {
+      do_check_eq(a1, null);
+      do_check_neq(a2, null);
+      do_check_neq(a3, null);
+      do_check_neq(a4, null);
+      do_check_neq(a5, null);
+
+      server.stop(do_test_finished);
+    });
+  }, true);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_1_strictcompat.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_1_strictcompat.js
new file mode 100644
index 000000000..6fa11eb39
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_1_strictcompat.js
@@ -0,0 +1,49 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, true);
+
+var ADDONS = [
+  "test_bug470377_1",
+  "test_bug470377_2",
+  "test_bug470377_3",
+  "test_bug470377_4",
+  "test_bug470377_5",
+];
+
+Components.utils.import("resource://testing-common/httpd.js");
+var server;
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  server = new HttpServer();
+  server.registerDirectory("/", do_get_file("data/test_bug470377"));
+  server.start(-1);
+
+  startupManager();
+
+  installAllFiles(ADDONS.map(a => do_get_addon(a)), function() {
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["bug470377_1@tests.mozilla.org",
+                                 "bug470377_2@tests.mozilla.org",
+                                 "bug470377_3@tests.mozilla.org",
+                                 "bug470377_4@tests.mozilla.org",
+                                 "bug470377_5@tests.mozilla.org"],
+                                 function([a1, a2, a3, a4, a5]) {
+      do_check_eq(a1, null);
+      do_check_eq(a2, null);
+      do_check_eq(a3, null);
+      do_check_neq(a4, null);
+      do_check_neq(a5, null);
+
+      server.stop(do_test_finished);
+    });
+  }, true);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_2.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_2.js
new file mode 100644
index 000000000..0c912ceff
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_2.js
@@ -0,0 +1,49 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+var ADDONS = [
+  "test_bug470377_1",
+  "test_bug470377_2",
+  "test_bug470377_3",
+  "test_bug470377_4",
+  "test_bug470377_5",
+];
+
+Components.utils.import("resource://testing-common/httpd.js");
+var server;
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  server = new HttpServer();
+  server.registerDirectory("/", do_get_file("data/test_bug470377"));
+  server.start(-1);
+
+  startupManager();
+  AddonManager.checkCompatibility = false;
+
+  installAllFiles(ADDONS.map(a => do_get_addon(a)), function() {
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["bug470377_1@tests.mozilla.org",
+                                 "bug470377_2@tests.mozilla.org",
+                                 "bug470377_3@tests.mozilla.org",
+                                 "bug470377_4@tests.mozilla.org",
+                                 "bug470377_5@tests.mozilla.org"],
+                                 function([a1, a2, a3, a4, a5]) {
+      do_check_eq(a1, null);
+      do_check_neq(a2, null);
+      do_check_neq(a3, null);
+      do_check_neq(a4, null);
+      do_check_neq(a5, null);
+
+      server.stop(do_test_finished);
+    });
+  }, true);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_3.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_3.js
new file mode 100644
index 000000000..0d1d30f3b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_3.js
@@ -0,0 +1,95 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2.2.3", "2");
+
+  // inject the add-ons into the profile
+  var dest = gProfD.clone();
+  dest.append("extensions");
+  dest.append("bug470377_1@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  var source = do_get_file("data/test_bug470377/install_1.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = gProfD.clone();
+  dest.append("extensions");
+  dest.append("bug470377_2@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_2.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = gProfD.clone();
+  dest.append("extensions");
+  dest.append("bug470377_3@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_3.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = gProfD.clone();
+  dest.append("extensions");
+  dest.append("bug470377_4@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_4.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = gProfD.clone();
+  dest.append("extensions");
+  dest.append("bug470377_5@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_5.rdf");
+  source.copyTo(dest, "install.rdf");
+
+  startupManager();
+
+  run_test_1();
+}
+
+function run_test_1() {
+  AddonManager.getAddonsByIDs(["bug470377_1@tests.mozilla.org",
+                               "bug470377_2@tests.mozilla.org",
+                               "bug470377_3@tests.mozilla.org",
+                               "bug470377_4@tests.mozilla.org",
+                               "bug470377_5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+    do_check_neq(a1, null);
+    do_check_false(a1.isActive);
+    do_check_neq(a2, null);
+    do_check_true(a2.isActive);
+    do_check_neq(a3, null);
+    do_check_true(a3.isActive);
+    do_check_neq(a4, null);
+    do_check_true(a4.isActive);
+    do_check_neq(a5, null);
+    do_check_true(a5.isActive);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+function run_test_2() {
+  AddonManager.checkCompatibility = false;
+
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["bug470377_1@tests.mozilla.org",
+                               "bug470377_2@tests.mozilla.org",
+                               "bug470377_3@tests.mozilla.org",
+                               "bug470377_4@tests.mozilla.org",
+                               "bug470377_5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+    do_check_neq(a1, null);
+    do_check_false(a1.isActive);
+    do_check_neq(a2, null);
+    do_check_true(a2.isActive);
+    do_check_neq(a3, null);
+    do_check_true(a3.isActive);
+    do_check_neq(a4, null);
+    do_check_true(a4.isActive);
+    do_check_neq(a5, null);
+    do_check_true(a5.isActive);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_3_strictcompat.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_3_strictcompat.js
new file mode 100644
index 000000000..100ea99d7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_3_strictcompat.js
@@ -0,0 +1,94 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2.2.3", "2");
+  Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, true);
+
+  // inject the add-ons into the profile
+  var dest = gProfD.clone();
+  dest.append("extensions");
+  dest.append("bug470377_1@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  var source = do_get_file("data/test_bug470377/install_1.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = gProfD.clone();
+  dest.append("extensions");
+  dest.append("bug470377_2@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_2.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = gProfD.clone();
+  dest.append("extensions");
+  dest.append("bug470377_3@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_3.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = gProfD.clone();
+  dest.append("extensions");
+  dest.append("bug470377_4@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_4.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = gProfD.clone();
+  dest.append("extensions");
+  dest.append("bug470377_5@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_5.rdf");
+  source.copyTo(dest, "install.rdf");
+
+  startupManager();
+
+  run_test_1();
+}
+
+function run_test_1() {
+  AddonManager.getAddonsByIDs(["bug470377_1@tests.mozilla.org",
+                               "bug470377_2@tests.mozilla.org",
+                               "bug470377_3@tests.mozilla.org",
+                               "bug470377_4@tests.mozilla.org",
+                               "bug470377_5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+    do_check_neq(a1, null);
+    do_check_false(a1.isActive);
+    do_check_neq(a2, null);
+    do_check_false(a2.isActive);
+    do_check_neq(a3, null);
+    do_check_false(a3.isActive);
+    do_check_neq(a4, null);
+    do_check_true(a4.isActive);
+    do_check_neq(a5, null);
+    do_check_true(a5.isActive);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+function run_test_2() {
+  AddonManager.checkCompatibility = false;
+
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["bug470377_1@tests.mozilla.org",
+                               "bug470377_2@tests.mozilla.org",
+                               "bug470377_3@tests.mozilla.org",
+                               "bug470377_4@tests.mozilla.org",
+                               "bug470377_5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+    do_check_neq(a1, null);
+    do_check_false(a1.isActive);
+    do_check_neq(a2, null);
+    do_check_true(a2.isActive);
+    do_check_neq(a3, null);
+    do_check_true(a3.isActive);
+    do_check_neq(a4, null);
+    do_check_true(a4.isActive);
+    do_check_neq(a5, null);
+    do_check_true(a5.isActive);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_4.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_4.js
new file mode 100644
index 000000000..c51c38b0c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug470377_4.js
@@ -0,0 +1,92 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2.1a4", "2");
+
+  // inject the add-ons into the profile
+  var profileDir = gProfD.clone();
+  profileDir.append("extensions");
+  var dest = profileDir.clone();
+  dest.append("bug470377_1@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  var source = do_get_file("data/test_bug470377/install_1.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = profileDir.clone();
+  dest.append("bug470377_2@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_2.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = profileDir.clone();
+  dest.append("bug470377_3@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_3.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = profileDir.clone();
+  dest.append("bug470377_4@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_4.rdf");
+  source.copyTo(dest, "install.rdf");
+  dest = profileDir.clone();
+  dest.append("bug470377_5@tests.mozilla.org");
+  dest.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0o755);
+  source = do_get_file("data/test_bug470377/install_5.rdf");
+  source.copyTo(dest, "install.rdf");
+
+  run_test_1();
+}
+
+function run_test_1() {
+  startupManager();
+  AddonManager.checkCompatibility = false;
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["bug470377_1@tests.mozilla.org",
+                               "bug470377_2@tests.mozilla.org",
+                               "bug470377_3@tests.mozilla.org",
+                               "bug470377_4@tests.mozilla.org",
+                               "bug470377_5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+    do_check_neq(a1, null);
+    do_check_false(a1.isActive);
+    do_check_neq(a2, null);
+    do_check_true(a2.isActive);
+    do_check_neq(a3, null);
+    do_check_true(a3.isActive);
+    do_check_neq(a4, null);
+    do_check_true(a4.isActive);
+    do_check_neq(a5, null);
+    do_check_true(a5.isActive);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+function run_test_2() {
+  AddonManager.checkCompatibility = true;
+
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["bug470377_1@tests.mozilla.org",
+                               "bug470377_2@tests.mozilla.org",
+                               "bug470377_3@tests.mozilla.org",
+                               "bug470377_4@tests.mozilla.org",
+                               "bug470377_5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+    do_check_neq(a1, null);
+    do_check_false(a1.isActive);
+    do_check_neq(a2, null);
+    do_check_false(a2.isActive);
+    do_check_neq(a3, null);
+    do_check_false(a3.isActive);
+    do_check_neq(a4, null);
+    do_check_true(a4.isActive);
+    do_check_neq(a5, null);
+    do_check_true(a5.isActive);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug514327_1.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug514327_1.js
new file mode 100644
index 000000000..46b65ffff
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug514327_1.js
@@ -0,0 +1,59 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+
+const nsIBLS = Ci.nsIBlocklistService;
+
+var PLUGINS = [{
+  // blocklisted - default severity
+  name: "test_bug514327_1",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // outdated - severity of "0"
+  name: "test_bug514327_2",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // outdated - severity of "0"
+  name: "test_bug514327_3",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // not blocklisted, not outdated
+  name: "test_bug514327_4",
+  version: "5",
+  disabled: false,
+  blocklisted: false,
+  outdated: false
+}];
+
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  copyBlocklistToProfile(do_get_file("data/test_bug514327_1.xml"));
+
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].getService(nsIBLS);
+
+  // blocked (sanity check)
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[0], "1", "1.9") == nsIBLS.STATE_BLOCKED);
+
+  // outdated
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[1], "1", "1.9") == nsIBLS.STATE_OUTDATED);
+
+  // outdated
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[2], "1", "1.9") == nsIBLS.STATE_OUTDATED);
+
+  // not blocked
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[3], "1", "1.9") == nsIBLS.STATE_NOT_BLOCKED);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug514327_2.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug514327_2.js
new file mode 100644
index 000000000..261739da4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug514327_2.js
@@ -0,0 +1,41 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+
+const nsIBLS = Ci.nsIBlocklistService;
+
+// Finds the test nsIPluginTag
+function get_test_plugintag() {
+  var host = Cc["@mozilla.org/plugin/host;1"].getService(Ci.nsIPluginHost);
+  var tags = host.getPluginTags();
+  for (let tag of tags) {
+    if (tag.name == "Test Plug-in")
+      return tag;
+  }
+  return null;
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  copyBlocklistToProfile(do_get_file("data/test_bug514327_2.xml"));
+
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].getService(nsIBLS);
+  var prefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch);
+
+  prefs.setBoolPref("plugin.load_flash_only", false);
+
+  var plugin = get_test_plugintag();
+  if (!plugin)
+    do_throw("Plugin tag not found");
+
+  // run the code after the blocklist is closed
+  Services.obs.notifyObservers(null, "addon-blocklist-closed", null);
+  do_execute_soon(function() {
+    // should be marked as outdated by the blocklist
+    do_check_true(blocklist.getPluginBlocklistState(plugin, "1", "1.9") == nsIBLS.STATE_OUTDATED);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug514327_3.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug514327_3.js
new file mode 100644
index 000000000..634361991
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug514327_3.js
@@ -0,0 +1,139 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+var Cr = Components.results;
+
+Cu.import("resource://testing-common/httpd.js");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+
+const nsIBLS = Ci.nsIBlocklistService;
+const URI_EXTENSION_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+var gBlocklist = null;
+var gPrefs = null;
+var gTestserver = null;
+
+var gNextTestPart = null;
+
+
+var PLUGINS = [{
+  // Tests a plugin whose state goes from not-blocked, to outdated
+  name: "test_bug514327_outdated",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+}, {
+  // Used to trigger the blocklist dialog, which indicates the blocklist has updated
+  name: "test_bug514327_1",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+}, {
+  // Used to trigger the blocklist dialog, which indicates the blocklist has updated
+  name: "test_bug514327_2",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+} ];
+
+
+// A fake plugin host for the blocklist service to use
+var PluginHost = {
+  getPluginTags: function(countRef) {
+    countRef.value = PLUGINS.length;
+    return PLUGINS;
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIPluginHost)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+// Don't need the full interface, attempts to call other methods will just
+// throw which is just fine
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, args) {
+    // Should be called to list the newly blocklisted items
+    do_check_eq(url, URI_EXTENSION_BLOCKLIST_DIALOG);
+    // Should only include one item
+    do_check_eq(args.wrappedJSObject.list.length, 1);
+    // And that item should be the blocked plugin, not the outdated one
+    var item = args.wrappedJSObject.list[0];
+    do_check_true(item.item instanceof Ci.nsIPluginTag);
+    do_check_neq(item.name, "test_bug514327_outdated");
+
+    // Call the next test after the blocklist has finished up
+    do_timeout(0, gNextTestPart);
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+MockRegistrar.register("@mozilla.org/plugin/host;1", PluginHost);
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+
+function do_update_blocklist(aDatafile, aNextPart) {
+  gNextTestPart = aNextPart;
+
+  gPrefs.setCharPref("extensions.blocklist.url", "http://localhost:" + gPort + "/data/" + aDatafile);
+  gBlocklist.QueryInterface(Ci.nsITimerCallback).notify(null);
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  gTestserver = new HttpServer();
+  gTestserver.registerDirectory("/data/", do_get_file("data"));
+  gTestserver.start(-1);
+  gPort = gTestserver.identity.primaryPort;
+
+  startupManager();
+
+  // initialize the blocklist with no entries
+  copyBlocklistToProfile(do_get_file("data/test_bug514327_3_empty.xml"));
+
+  gPrefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch);
+  gBlocklist = Cc["@mozilla.org/extensions/blocklist;1"].getService(nsIBLS);
+
+  // should NOT be marked as outdated by the blocklist
+  do_check_true(gBlocklist.getPluginBlocklistState(PLUGINS[0], "1", "1.9") == nsIBLS.STATE_NOT_BLOCKED);
+
+  do_test_pending();
+
+  // update blocklist with data that marks the plugin as outdated
+  do_update_blocklist("test_bug514327_3_outdated_1.xml", test_part_1);
+}
+
+function test_part_1() {
+  // plugin should now be marked as outdated
+  do_check_true(gBlocklist.getPluginBlocklistState(PLUGINS[0], "1", "1.9") == nsIBLS.STATE_OUTDATED);
+
+  // update blocklist with data that marks the plugin as outdated
+  do_update_blocklist("test_bug514327_3_outdated_2.xml", test_part_2);
+}
+
+function test_part_2() {
+  // plugin should still be marked as outdated
+  do_check_true(gBlocklist.getPluginBlocklistState(PLUGINS[0], "1", "1.9") == nsIBLS.STATE_OUTDATED);
+
+  finish();
+}
+
+function finish() {
+  gTestserver.stop(do_test_finished);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug521905.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug521905.js
new file mode 100644
index 000000000..b507fc100
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug521905.js
@@ -0,0 +1,59 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+const ADDON = "test_bug521905";
+const ID = "bug521905@tests.mozilla.org";
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+function run_test() {
+  // This test is only relevant on builds where the version is included in the
+  // checkCompatibility preference name
+  if (isNightlyChannel()) {
+    return;
+  }
+
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2.0pre", "2");
+
+  startupManager();
+  AddonManager.checkCompatibility = false;
+
+  installAllFiles([do_get_addon(ADDON)], function() {
+    restartManager();
+
+    AddonManager.getAddonByID(ID, function(addon) {
+      do_check_neq(addon, null);
+      do_check_true(addon.isActive);
+
+      do_execute_soon(run_test_1);
+    });
+  });
+}
+
+function run_test_1() {
+  Services.prefs.setBoolPref("extensions.checkCompatibility.2.0pre", true);
+
+  restartManager();
+  AddonManager.getAddonByID(ID, function(addon) {
+    do_check_neq(addon, null);
+    do_check_false(addon.isActive);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+function run_test_2() {
+  Services.prefs.setBoolPref("extensions.checkCompatibility.2.0p", false);
+
+  restartManager();
+  AddonManager.getAddonByID(ID, function(addon) {
+    do_check_neq(addon, null);
+    do_check_false(addon.isActive);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug526598.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug526598.js
new file mode 100644
index 000000000..debf59172
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug526598.js
@@ -0,0 +1,54 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  startupManager();
+
+  installAllFiles([do_get_file("data/test_bug526598_1.xpi"),
+                   do_get_file("data/test_bug526598_2.xpi")], function() {
+
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["bug526598_1@tests.mozilla.org",
+                                 "bug526598_2@tests.mozilla.org"],
+                                 callback_soon(function([a1, a2]) {
+
+      do_check_neq(a1, null);
+      do_check_true(a1.hasResource("install.rdf"));
+      let uri = a1.getResourceURI("install.rdf");
+      do_check_true(uri instanceof AM_Ci.nsIFileURL);
+      let file = uri.file;
+      do_check_true(file.exists());
+      do_check_true(file.isReadable());
+      do_check_true(file.isWritable());
+
+      do_check_neq(a2, null);
+      do_check_true(a2.hasResource("install.rdf"));
+      uri = a2.getResourceURI("install.rdf");
+      do_check_true(uri instanceof AM_Ci.nsIFileURL);
+      file = uri.file;
+      do_check_true(file.exists());
+      do_check_true(file.isReadable());
+      do_check_true(file.isWritable());
+
+      a1.uninstall();
+      a2.uninstall();
+
+      restartManager();
+
+      AddonManager.getAddonsByIDs(["bug526598_1@tests.mozilla.org",
+                                   "bug526598_2@tests.mozilla.org"],
+                                   function([newa1, newa2]) {
+        do_check_eq(newa1, null);
+        do_check_eq(newa2, null);
+
+        do_execute_soon(do_test_finished);
+      });
+    }));
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug541420.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug541420.js
new file mode 100644
index 000000000..b7af5453f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug541420.js
@@ -0,0 +1,37 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  startupManager();
+
+  installAllFiles([do_get_file("data/test_bug541420.xpi")], function() {
+
+    restartManager();
+
+    AddonManager.getAddonByID("bug541420@tests.mozilla.org", function(addon) {
+
+      do_check_neq(addon, null);
+      do_check_true(addon.hasResource("binary"));
+      let uri = addon.getResourceURI("binary");
+      do_check_true(uri instanceof AM_Ci.nsIFileURL);
+      let file = uri.file;
+      do_check_true(file.exists());
+      do_check_true(file.isReadable());
+      do_check_true(file.isWritable());
+
+      // We don't understand executable permissions on Windows since we don't
+      // support NTFS permissions so we don't need to test there. OSX's isExecutable
+      // only tests if the file is an application so it is better to just check the
+      // raw permission bits
+      if (!("nsIWindowsRegKey" in Components.interfaces))
+        do_check_true((file.permissions & 0o100) == 0o100);
+
+      do_execute_soon(do_test_finished);
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug542391.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug542391.js
new file mode 100644
index 000000000..aa1bbd53f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug542391.js
@@ -0,0 +1,464 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+const URI_EXTENSION_UPDATE_DIALOG     = "chrome://mozapps/content/extensions/update.xul";
+const PREF_EM_SHOW_MISMATCH_UI        = "extensions.showMismatchUI";
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+var Cr = Components.results;
+
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+var testserver;
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+var gInstallUpdate = false;
+var gCheckUpdates = false;
+
+// This will be called to show the compatibility update dialog.
+var WindowWatcher = {
+  expected: false,
+  args: null,
+
+  openWindow: function(parent, url, name, features, args) {
+    do_check_true(Services.startup.interrupted);
+    do_check_eq(url, URI_EXTENSION_UPDATE_DIALOG);
+    do_check_true(this.expected);
+    this.expected = false;
+    this.args = args.QueryInterface(AM_Ci.nsIVariant);
+
+    var updated = !gCheckUpdates;
+    if (gCheckUpdates) {
+      AddonManager.getAddonByID("override1x2-1x3@tests.mozilla.org", function(a6) {
+        a6.findUpdates({
+          onUpdateFinished: function() {
+            AddonManagerPrivate.removeStartupChange("disabled", "override1x2-1x3@tests.mozilla.org");
+            updated = true;
+          }
+        }, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
+      });
+    }
+
+    var installed = !gInstallUpdate;
+    if (gInstallUpdate) {
+      // Simulate installing an update while in the dialog
+      installAllFiles([do_get_addon("upgradeable1x2-3_2")], function() {
+        AddonManagerPrivate.removeStartupChange("disabled", "upgradeable1x2-3@tests.mozilla.org");
+        AddonManagerPrivate.addStartupChange("updated", "upgradeable1x2-3@tests.mozilla.org");
+        installed = true;
+      });
+    }
+
+    // The dialog is meant to be opened modally and the install operation can be
+    // asynchronous, so we must spin an event loop (like the modal window does)
+    // until the install is complete
+    let thr = AM_Cc["@mozilla.org/thread-manager;1"].
+              getService(AM_Ci.nsIThreadManager).
+              mainThread;
+
+    while (!installed || !updated)
+      thr.processNextEvent(false);
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+function check_state_v1([a1, a2, a3, a4, a5, a6]) {
+  do_check_neq(a1, null);
+  do_check_false(a1.appDisabled);
+  do_check_false(a1.userDisabled);
+  do_check_true(a1.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_false(a2.appDisabled);
+  do_check_true(a2.userDisabled);
+  do_check_false(a2.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_false(a3.appDisabled);
+  do_check_false(a3.userDisabled);
+  do_check_true(a3.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+  do_check_eq(a3.version, "1.0");
+
+  do_check_neq(a4, null);
+  do_check_false(a4.appDisabled);
+  do_check_true(a4.userDisabled);
+  do_check_false(a4.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+  do_check_neq(a5, null);
+  do_check_false(a5.appDisabled);
+  do_check_false(a5.userDisabled);
+  do_check_true(a5.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_false(a6.appDisabled);
+  do_check_false(a6.userDisabled);
+  do_check_true(a6.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a6.id));
+}
+
+function check_state_v1_2([a1, a2, a3, a4, a5, a6]) {
+  do_check_neq(a1, null);
+  do_check_false(a1.appDisabled);
+  do_check_false(a1.userDisabled);
+  do_check_true(a1.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_false(a2.appDisabled);
+  do_check_true(a2.userDisabled);
+  do_check_false(a2.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_true(a3.appDisabled);
+  do_check_false(a3.userDisabled);
+  do_check_false(a3.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+  do_check_eq(a3.version, "2.0");
+
+  do_check_neq(a4, null);
+  do_check_false(a4.appDisabled);
+  do_check_true(a4.userDisabled);
+  do_check_false(a4.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+  do_check_neq(a5, null);
+  do_check_false(a5.appDisabled);
+  do_check_false(a5.userDisabled);
+  do_check_true(a5.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_false(a6.appDisabled);
+  do_check_false(a6.userDisabled);
+  do_check_true(a6.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a6.id));
+}
+
+function check_state_v2([a1, a2, a3, a4, a5, a6]) {
+  do_check_neq(a1, null);
+  do_check_true(a1.appDisabled);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_false(a2.appDisabled);
+  do_check_true(a2.userDisabled);
+  do_check_false(a2.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_false(a3.appDisabled);
+  do_check_false(a3.userDisabled);
+  do_check_true(a3.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+  do_check_eq(a3.version, "1.0");
+
+  do_check_neq(a4, null);
+  do_check_false(a4.appDisabled);
+  do_check_true(a4.userDisabled);
+  do_check_false(a4.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+  do_check_neq(a5, null);
+  do_check_false(a5.appDisabled);
+  do_check_false(a5.userDisabled);
+  do_check_true(a5.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_false(a6.appDisabled);
+  do_check_false(a6.userDisabled);
+  do_check_true(a6.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a6.id));
+}
+
+function check_state_v3([a1, a2, a3, a4, a5, a6]) {
+  do_check_neq(a1, null);
+  do_check_true(a1.appDisabled);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_true(a2.appDisabled);
+  do_check_true(a2.userDisabled);
+  do_check_false(a2.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_true(a3.appDisabled);
+  do_check_false(a3.userDisabled);
+  do_check_false(a3.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+  do_check_eq(a3.version, "1.0");
+
+  do_check_neq(a4, null);
+  do_check_false(a4.appDisabled);
+  do_check_true(a4.userDisabled);
+  do_check_false(a4.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+  do_check_neq(a5, null);
+  do_check_false(a5.appDisabled);
+  do_check_false(a5.userDisabled);
+  do_check_true(a5.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_false(a6.appDisabled);
+  do_check_false(a6.userDisabled);
+  do_check_true(a6.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a6.id));
+}
+
+function check_state_v3_2([a1, a2, a3, a4, a5, a6]) {
+  do_check_neq(a1, null);
+  do_check_true(a1.appDisabled);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_true(a2.appDisabled);
+  do_check_true(a2.userDisabled);
+  do_check_false(a2.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_false(a3.appDisabled);
+  do_check_false(a3.userDisabled);
+  do_check_true(a3.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+  do_check_eq(a3.version, "2.0");
+
+  do_check_neq(a4, null);
+  do_check_false(a4.appDisabled);
+  do_check_true(a4.userDisabled);
+  do_check_false(a4.isActive);
+  do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+  do_check_neq(a5, null);
+  do_check_false(a5.appDisabled);
+  do_check_false(a5.userDisabled);
+  do_check_true(a5.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_false(a6.appDisabled);
+  do_check_false(a6.userDisabled);
+  do_check_true(a6.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, a6.id));
+}
+
+// Install all the test add-ons, disable two of them and "upgrade" the app to
+// version 2 which will appDisable one.
+add_task(function* init() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  Services.prefs.setBoolPref(PREF_EM_SHOW_MISMATCH_UI, true);
+
+  // Add an extension to the profile to make sure the dialog doesn't show up
+  // on new profiles
+  var dest = writeInstallRDFForExtension({
+    id: "addon1@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 1",
+  }, profileDir);
+
+  // Create and configure the HTTP server.
+  testserver = createHttpServer(4444);
+  testserver.registerDirectory("/data/", do_get_file("data"));
+  testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+  startupManager();
+
+  // Remove the add-on we installed directly in the profile directory;
+  // this should show as uninstalled on next restart
+  dest.remove(true);
+
+  // Load up an initial set of add-ons
+  yield promiseInstallAllFiles([do_get_addon("min1max1"),
+                                do_get_addon("min1max2"),
+                                do_get_addon("upgradeable1x2-3_1"),
+                                do_get_addon("min1max3"),
+                                do_get_addon("min1max3b"),
+                                do_get_addon("override1x2-1x3")]);
+  yield promiseRestartManager();
+
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", ["addon1@tests.mozilla.org"]);
+  check_startup_changes("disabled", []);
+  check_startup_changes("enabled", []);
+
+  // user-disable two add-ons
+  let [a2, a4] = yield promiseAddonsByIDs(["min1max2@tests.mozilla.org",
+                                           "min1max3@tests.mozilla.org"]);
+  do_check_true(a2 != null && a4 != null);
+  a2.userDisabled = true;
+  a4.userDisabled = true;
+  yield promiseRestartManager();
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", []);
+  check_startup_changes("enabled", []);
+
+  let addons = yield promiseAddonsByIDs(["min1max1@tests.mozilla.org",
+                                         "min1max2@tests.mozilla.org",
+                                         "upgradeable1x2-3@tests.mozilla.org",
+                                         "min1max3@tests.mozilla.org",
+                                         "min1max3b@tests.mozilla.org",
+                                         "override1x2-1x3@tests.mozilla.org"]);
+  check_state_v1(addons);
+
+  // Restart as version 2, add-on _1 should become app-disabled
+  WindowWatcher.expected = true;
+  yield promiseRestartManager("2");
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", ["min1max1@tests.mozilla.org"]);
+  check_startup_changes("enabled", []);
+  do_check_false(WindowWatcher.expected);
+
+  addons = yield promiseAddonsByIDs(["min1max1@tests.mozilla.org",
+                                     "min1max2@tests.mozilla.org",
+                                     "upgradeable1x2-3@tests.mozilla.org",
+                                     "min1max3@tests.mozilla.org",
+                                     "min1max3b@tests.mozilla.org",
+                                     "override1x2-1x3@tests.mozilla.org"]);
+  check_state_v2(addons);
+});
+
+// Upgrade to version 3 which will appDisable addons
+// upgradeable1x2-3 and override1x2-1x3
+// Only the newly disabled add-ons should be passed to the
+// upgrade window
+add_task(function* run_test_1() {
+  gCheckUpdates = true;
+  WindowWatcher.expected = true;
+
+  yield promiseRestartManager("3");
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", ["upgradeable1x2-3@tests.mozilla.org"]);
+  check_startup_changes("enabled", []);
+  do_check_false(WindowWatcher.expected);
+  gCheckUpdates = false;
+
+  let addons = yield promiseAddonsByIDs(["min1max1@tests.mozilla.org",
+                                         "min1max2@tests.mozilla.org",
+                                         "upgradeable1x2-3@tests.mozilla.org",
+                                         "min1max3@tests.mozilla.org",
+                                         "min1max3b@tests.mozilla.org",
+                                         "override1x2-1x3@tests.mozilla.org"]);
+  check_state_v3(addons);
+
+  do_check_eq(WindowWatcher.args.length, 2);
+  do_check_true(WindowWatcher.args.indexOf("upgradeable1x2-3@tests.mozilla.org") >= 0);
+  do_check_true(WindowWatcher.args.indexOf("override1x2-1x3@tests.mozilla.org") >= 0);
+});
+
+// Downgrade to version 2 which will remove appDisable from two add-ons
+// Still displays the compat window, because metadata is not recently updated
+add_task(function* run_test_2() {
+  WindowWatcher.expected = true;
+  yield promiseRestartManager("2");
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", []);
+  check_startup_changes("enabled", ["upgradeable1x2-3@tests.mozilla.org"]);
+  do_check_false(WindowWatcher.expected);
+
+  let addons = yield promiseAddonsByIDs(["min1max1@tests.mozilla.org",
+                                         "min1max2@tests.mozilla.org",
+                                         "upgradeable1x2-3@tests.mozilla.org",
+                                         "min1max3@tests.mozilla.org",
+                                         "min1max3b@tests.mozilla.org",
+                                         "override1x2-1x3@tests.mozilla.org"]);
+  check_state_v2(addons);
+});
+
+// Upgrade back to version 3 which should only appDisable
+// upgradeable1x2-3, because we already have the override
+// stored in our DB for override1x2-1x3. Ensure that when
+// the upgrade dialog updates an add-on no restart is necessary
+add_task(function* run_test_5() {
+  Services.prefs.setBoolPref(PREF_EM_SHOW_MISMATCH_UI, true);
+  // tell the mock compatibility window to install the available upgrade
+  gInstallUpdate = true;
+
+  WindowWatcher.expected = true;
+  yield promiseRestartManager("3");
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", ["upgradeable1x2-3@tests.mozilla.org"]);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", []);
+  check_startup_changes("enabled", []);
+  do_check_false(WindowWatcher.expected);
+  gInstallUpdate = false;
+
+  let addons = yield promiseAddonsByIDs(["min1max1@tests.mozilla.org",
+                                         "min1max2@tests.mozilla.org",
+                                         "upgradeable1x2-3@tests.mozilla.org",
+                                         "min1max3@tests.mozilla.org",
+                                         "min1max3b@tests.mozilla.org",
+                                         "override1x2-1x3@tests.mozilla.org"]);
+  check_state_v3_2(addons);
+
+  do_check_eq(WindowWatcher.args.length, 1);
+  do_check_true(WindowWatcher.args.indexOf("upgradeable1x2-3@tests.mozilla.org") >= 0);
+});
+
+// Downgrade to version 1 which will appEnable all the add-ons
+// except upgradeable1x2-3; the update we installed isn't compatible with 1
+add_task(function* run_test_6() {
+  WindowWatcher.expected = true;
+  yield promiseRestartManager("1");
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", ["upgradeable1x2-3@tests.mozilla.org"]);
+  check_startup_changes("enabled", ["min1max1@tests.mozilla.org"]);
+  do_check_false(WindowWatcher.expected);
+
+  let addons = yield promiseAddonsByIDs(["min1max1@tests.mozilla.org",
+                                         "min1max2@tests.mozilla.org",
+                                         "upgradeable1x2-3@tests.mozilla.org",
+                                         "min1max3@tests.mozilla.org",
+                                         "min1max3b@tests.mozilla.org",
+                                         "override1x2-1x3@tests.mozilla.org"]);
+  check_state_v1_2(addons);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug554133.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug554133.js
new file mode 100644
index 000000000..c252e1ced
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug554133.js
@@ -0,0 +1,86 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that if the AMO response provides total_results,
+// searchSucceeded is called with the correct number of total results
+
+Components.utils.import("resource://gre/modules/addons/AddonRepository.jsm");
+
+const PREF_GETADDONS_GETSEARCHRESULTS = "extensions.getAddons.search.url";
+
+Components.utils.import("resource://testing-common/httpd.js");
+var server;
+
+var TESTS = [
+{
+  query:      "bug554133",
+  maxResults: 2,
+  length:     2,
+  total:      100
+},
+{
+  query:      "bug554133",
+  maxResults: 10,
+  length:     10,
+  total:      100
+},
+{
+  query:      "bug554133",
+  maxResults: 100,
+  length:     10,
+  total:      100
+}
+];
+
+var gCurrentTest = 0;
+var SearchCallback = {
+  searchSucceeded: function(addons, length, total) {
+    do_check_false(AddonRepository.isSearching);
+    do_check_eq(addons.length, length);
+    do_check_eq(length, TESTS[gCurrentTest].length);
+    do_check_eq(total, TESTS[gCurrentTest].total);
+
+    gCurrentTest++;
+    run_current_test();
+  },
+
+  searchFailed: function() {
+    server.stop(do_test_finished);
+    do_throw("Search results failed");
+  }
+};
+
+function run_current_test() {
+  if (gCurrentTest < TESTS.length) {
+    var query = TESTS[gCurrentTest].query;
+    var maxResults = TESTS[gCurrentTest].maxResults;
+    AddonRepository.searchAddons(query, maxResults, SearchCallback);
+  }
+  else
+    server.stop(do_test_finished);
+}
+
+function run_test()
+{
+  // Setup for test
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  startupManager();
+
+  server = new HttpServer();
+  server.registerDirectory("/", do_get_file("data"));
+  mapFile("/data/test_bug554133.xml", server);
+  server.start(-1);
+  gPort = server.identity.primaryPort;
+
+  // Point search to the test server
+  Services.prefs.setCharPref(PREF_GETADDONS_GETSEARCHRESULTS,
+                             "http://localhost:" + gPort + "/data/test_%TERMS%.xml");
+
+  do_check_neq(AddonRepository, null);
+  gCurrentTest = 0;
+  run_current_test();
+}
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug559800.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug559800.js
new file mode 100644
index 000000000..866ad3ad7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug559800.js
@@ -0,0 +1,71 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that deleting the database from the profile doesn't break
+// anything
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// getting an unused port
+Components.utils.import("resource://testing-common/httpd.js");
+var gServer = new HttpServer();
+gServer.start(-1);
+gPort = gServer.identity.primaryPort;
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  writeInstallRDFForExtension({
+    id: "addon1@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "http://localhost:" + gPort + "/data/test_update.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 1",
+  }, profileDir);
+
+  startupManager();
+
+  do_test_pending();
+
+  run_test_1();
+}
+
+function end_test() {
+  gServer.stop(do_test_finished);
+}
+
+function run_test_1() {
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+
+    shutdownManager();
+
+    gExtensionsJSON.remove(true);
+
+    do_execute_soon(check_test_1);
+  }));
+}
+
+function check_test_1() {
+  startupManager(false);
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+
+    // due to delayed write, the file may not exist until
+    // after shutdown
+    shutdownManager();
+    do_check_true(gExtensionsJSON.exists());
+    do_check_true(gExtensionsJSON.fileSize > 0);
+
+    end_test();
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug563256.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug563256.js
new file mode 100644
index 000000000..497e66526
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug563256.js
@@ -0,0 +1,259 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that the themes switch as expected
+
+const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  writeInstallRDFForExtension({
+    id: "default@tests.mozilla.org",
+    version: "1.0",
+    name: "Default",
+    internalName: "classic/1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "alternate@tests.mozilla.org",
+    version: "1.0",
+    name: "Test 1",
+    type: 4,
+    internalName: "alternate/1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  }, profileDir);
+
+  startupManager();
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                               "alternate@tests.mozilla.org"], function([d, a]) {
+    do_check_neq(d, null);
+    do_check_false(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_true(d.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, d.id));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_neq(a, null);
+    do_check_true(a.userDisabled);
+    do_check_false(a.appDisabled);
+    do_check_false(a.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, a.id));
+    do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(a.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    run_test_1(d, a);
+  });
+}
+
+function end_test() {
+  do_execute_soon(do_test_finished);
+}
+
+// Checks switching to a different theme and back again leaves everything the
+// same
+function run_test_1(d, a) {
+  a.userDisabled = false;
+
+  do_check_true(d.userDisabled);
+  do_check_false(d.appDisabled);
+  do_check_true(d.isActive);
+  do_check_true(isThemeInAddonsList(profileDir, d.id));
+  do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_DISABLE));
+  do_check_true(hasFlag(d.permissions, AddonManager.PERM_CAN_ENABLE));
+
+  do_check_false(a.userDisabled);
+  do_check_false(a.appDisabled);
+  do_check_false(a.isActive);
+  do_check_false(isThemeInAddonsList(profileDir, a.id));
+  do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_DISABLE));
+  do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_ENABLE));
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  d.userDisabled = false;
+
+  do_check_false(d.userDisabled);
+  do_check_false(d.appDisabled);
+  do_check_true(d.isActive);
+  do_check_true(isThemeInAddonsList(profileDir, d.id));
+  do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_DISABLE));
+  do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_ENABLE));
+
+  do_check_true(a.userDisabled);
+  do_check_false(a.appDisabled);
+  do_check_false(a.isActive);
+  do_check_false(isThemeInAddonsList(profileDir, a.id));
+  do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_DISABLE));
+  do_check_true(hasFlag(a.permissions, AddonManager.PERM_CAN_ENABLE));
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  do_execute_soon(run_test_2);
+}
+
+// Tests that after the restart themes can be changed as expected
+function run_test_2() {
+  restartManager();
+  AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                               "alternate@tests.mozilla.org"], function([d, a]) {
+    do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+    do_check_neq(d, null);
+    do_check_false(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_true(d.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, d.id));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_neq(a, null);
+    do_check_true(a.userDisabled);
+    do_check_false(a.appDisabled);
+    do_check_false(a.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, a.id));
+    do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(a.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+    a.userDisabled = false;
+
+    do_check_true(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_true(d.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, d.id));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(d.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_false(a.userDisabled);
+    do_check_false(a.appDisabled);
+    do_check_false(a.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, a.id));
+    do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+    d.userDisabled = false;
+
+    do_check_false(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_true(d.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, d.id));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_true(a.userDisabled);
+    do_check_false(a.appDisabled);
+    do_check_false(a.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, a.id));
+    do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(a.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+    a.userDisabled = false;
+
+    do_check_true(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_true(d.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, d.id));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(d.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_false(a.userDisabled);
+    do_check_false(a.appDisabled);
+    do_check_false(a.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, a.id));
+    do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+    do_execute_soon(check_test_2);
+  });
+}
+
+function check_test_2() {
+  restartManager();
+  AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                               "alternate@tests.mozilla.org"], callback_soon(function([d, a]) {
+    do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "alternate/1.0");
+
+    do_check_true(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_false(d.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, d.id));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(d.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_false(a.userDisabled);
+    do_check_false(a.appDisabled);
+    do_check_true(a.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, a.id));
+    do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    d.userDisabled = false;
+
+    do_check_false(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_false(d.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, d.id));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(d.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_true(a.userDisabled);
+    do_check_false(a.appDisabled);
+    do_check_true(a.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, a.id));
+    do_check_false(hasFlag(a.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(a.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "alternate/1.0");
+
+    restartManager();
+
+    do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+    AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                                 "alternate@tests.mozilla.org"], function([d2, a2]) {
+      do_check_neq(d2, null);
+      do_check_false(d2.userDisabled);
+      do_check_false(d2.appDisabled);
+      do_check_true(d2.isActive);
+      do_check_true(isThemeInAddonsList(profileDir, d2.id));
+      do_check_false(hasFlag(d2.permissions, AddonManager.PERM_CAN_DISABLE));
+      do_check_false(hasFlag(d2.permissions, AddonManager.PERM_CAN_ENABLE));
+
+      do_check_neq(a2, null);
+      do_check_true(a2.userDisabled);
+      do_check_false(a2.appDisabled);
+      do_check_false(a2.isActive);
+      do_check_false(isThemeInAddonsList(profileDir, a2.id));
+      do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_DISABLE));
+      do_check_true(hasFlag(a2.permissions, AddonManager.PERM_CAN_ENABLE));
+
+      end_test();
+    });
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug564030.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug564030.js
new file mode 100644
index 000000000..92ba3d68f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug564030.js
@@ -0,0 +1,63 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that upgrading an incompatible add-on to a compatible one forces an
+// EM restart
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "1.9.2");
+
+  var dest = writeInstallRDFForExtension({
+    id: "addon1@tests.mozilla.org",
+    version: "1.0",
+    name: "Test",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }]
+  }, profileDir);
+  // Attempt to make this look like it was added some time in the past so
+  // the update makes the last modified time change.
+  setExtensionModifiedTime(dest, dest.lastModifiedTime - 5000);
+
+  startupManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a) {
+    do_check_neq(a, null);
+    do_check_eq(a.version, "1.0");
+    do_check_false(a.userDisabled);
+    do_check_true(a.appDisabled);
+    do_check_false(a.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a.id));
+
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "2.0",
+      name: "Test",
+      targetApplications: [{
+        id: "xpcshell@tests.mozilla.org",
+        minVersion: "1",
+        maxVersion: "2"
+      }]
+    }, profileDir);
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a2) {
+      do_check_neq(a2, null);
+      do_check_eq(a2.version, "2.0");
+      do_check_false(a2.userDisabled);
+      do_check_false(a2.appDisabled);
+      do_check_true(a2.isActive);
+      do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+
+      do_execute_soon(do_test_finished);
+    });
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug566626.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug566626.js
new file mode 100644
index 000000000..641ff87c9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug566626.js
@@ -0,0 +1,112 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that multiple calls to the async API return fully formed
+// add-ons
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+var gAddon;
+
+// Sets up the profile by installing an add-on.
+function run_test() {
+  do_test_pending();
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+
+  startupManager();
+
+  run_test_1();
+}
+
+// Verifies that multiple calls to get an add-on at various stages of execution
+// return an add-on with a valid name.
+function run_test_1() {
+  var count = 0;
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.name, "Test 1");
+
+    if (count == 0)
+      gAddon = a1;
+    else
+      do_check_eq(a1, gAddon);
+    count++;
+    if (count == 4)
+      run_test_2();
+  });
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.name, "Test 1");
+
+    if (count == 0)
+      gAddon = a1;
+    else
+      do_check_eq(a1, gAddon);
+    count++;
+    if (count == 4)
+      run_test_2();
+  });
+
+  do_execute_soon(function() {
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.name, "Test 1");
+
+      if (count == 0)
+        gAddon = a1;
+      else
+        do_check_eq(a1, gAddon);
+      count++;
+      if (count == 4)
+        run_test_2();
+    });
+  });
+
+  do_execute_soon(function() {
+    do_execute_soon(function() {
+      AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+        do_check_neq(a1, null);
+        do_check_eq(a1.name, "Test 1");
+
+        if (count == 0)
+          gAddon = a1;
+        else
+          do_check_eq(a1, gAddon);
+        count++;
+        if (count == 4)
+          run_test_2();
+      });
+    });
+  });
+}
+
+// Verifies that a subsequent call gets the same add-on from the cache
+function run_test_2() {
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.name, "Test 1");
+
+    do_check_eq(a1, gAddon);
+
+    do_execute_soon(do_test_finished);
+  });
+
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug567184.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug567184.js
new file mode 100644
index 000000000..0e7863068
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug567184.js
@@ -0,0 +1,53 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+
+  run_test_1();
+}
+
+// Tests that installing doesn't require a restart
+function run_test_1() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_bug567184"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+
+    prepare_test({
+      "bug567184@tests.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], check_test_1);
+    install.install();
+  });
+}
+
+function check_test_1() {
+  AddonManager.getAllInstalls(function(installs) {
+    // There should be no active installs now since the install completed and
+    // doesn't require a restart.
+    do_check_eq(installs.length, 0);
+
+    AddonManager.getAddonByID("bug567184@tests.mozilla.org", function(b1) {
+      do_check_neq(b1, null);
+      do_check_true(b1.appDisabled);
+      do_check_false(b1.userDisabled);
+      do_check_false(b1.isActive);
+
+      do_execute_soon(do_test_finished);
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug569138.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug569138.js
new file mode 100644
index 000000000..4869fc117
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug569138.js
@@ -0,0 +1,147 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-ons with invalid target application entries show
+// up in the API but are correctly appDisabled
+
+// A working add-on
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Missing id
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+// Missing minVersion
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    maxVersion: "1"
+  }]
+};
+
+// Missing maxVersion
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 4",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1"
+  }]
+};
+
+// Blank id
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+// Blank minVersion
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 6",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "",
+    maxVersion: "1"
+  }]
+};
+
+// Blank maxVersion
+var addon7 = {
+  id: "addon7@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 7",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: ""
+  }]
+};
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// Set up the profile
+function run_test() {
+  do_test_pending();
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(addon7, profileDir);
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5, a6, a7]) {
+    do_check_neq(a1, null);
+    do_check_false(a1.appDisabled);
+    do_check_true(a1.isActive);
+
+    do_check_neq(a2, null);
+    do_check_true(a2.appDisabled);
+    do_check_false(a2.isActive);
+
+    do_check_neq(a3, null);
+    do_check_true(a3.appDisabled);
+    do_check_false(a3.isActive);
+
+    do_check_neq(a4, null);
+    do_check_true(a4.appDisabled);
+    do_check_false(a4.isActive);
+
+    do_check_neq(a5, null);
+    do_check_true(a5.appDisabled);
+    do_check_false(a5.isActive);
+
+    do_check_neq(a6, null);
+    do_check_true(a6.appDisabled);
+    do_check_false(a6.isActive);
+
+    do_check_neq(a6, null);
+    do_check_true(a6.appDisabled);
+    do_check_false(a6.isActive);
+
+    do_execute_soon(do_test_finished);
+
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug570173.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug570173.js
new file mode 100644
index 000000000..2c87d8c79
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug570173.js
@@ -0,0 +1,61 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-on update check failures are propogated correctly
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+var testserver;
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  // Create and configure the HTTP server.
+  testserver = createHttpServer();
+  testserver.registerDirectory("/data/", do_get_file("data"));
+  testserver.registerDirectory("/addons/", do_get_file("addons"));
+  gPort = testserver.identity.primaryPort;
+
+  run_next_test();
+}
+
+// Verify that an update check returns the correct errors.
+add_task(function* () {
+  for (let manifestType of ["rdf", "json"]) {
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "1.0",
+      updateURL: `http://localhost:${gPort}/data/test_missing.${manifestType}`,
+      targetApplications: [{
+        id: "xpcshell@tests.mozilla.org",
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+      bootstrap: "true",
+    }, profileDir);
+
+    yield promiseRestartManager();
+
+    let addon = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+    ok(addon);
+    ok(addon.updateURL.endsWith(manifestType));
+    equal(addon.version, "1.0");
+
+    // We're expecting an error, so resolve when the promise is rejected.
+    let update = yield promiseFindAddonUpdates(addon, AddonManager.UPDATE_WHEN_USER_REQUESTED)
+      .catch(Promise.resolve);
+
+    ok(!update.compatibilityUpdate, "not expecting a compatibility update");
+    ok(!update.updateAvailable, "not expecting a compatibility update");
+
+    equal(update.error, AddonManager.UPDATE_STATUS_DOWNLOAD_ERROR);
+
+    addon.uninstall();
+  }
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug576735.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug576735.js
new file mode 100644
index 000000000..df64e159d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug576735.js
@@ -0,0 +1,66 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that we recover gracefully from an extension directory disappearing
+// when we were expecting to uninstall it.
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+
+  startupManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+    a1.uninstall();
+
+    shutdownManager();
+
+    var dest = profileDir.clone();
+    dest.append(do_get_expected_addon_name("addon1@tests.mozilla.org"));
+    dest.remove(true);
+
+    writeInstallRDFForExtension(addon2, profileDir);
+
+    startupManager();
+
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon2@tests.mozilla.org"],
+                                function([a1_2, a2_2]) {
+      // Addon1 should no longer be installed
+      do_check_eq(a1_2, null);
+
+      // Addon2 should have been detected
+      do_check_neq(a2_2, null);
+
+      do_execute_soon(do_test_finished);
+    });
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug587088.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug587088.js
new file mode 100644
index 000000000..8d9857e7f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug587088.js
@@ -0,0 +1,174 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that trying to upgrade or uninstall an extension that has a file locked
+// will roll back the upgrade or uninstall and retry at the next restart
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  // This is only an issue on windows.
+  if (!("nsIWindowsRegKey" in AM_Ci))
+    return;
+
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+  run_test_1();
+}
+
+function check_addon(aAddon, aVersion) {
+  do_check_neq(aAddon, null);
+  do_check_eq(aAddon.version, aVersion);
+  do_check_true(aAddon.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, aAddon.id));
+
+  do_check_true(aAddon.hasResource("testfile"));
+  if (aVersion == "1.0") {
+    do_check_true(aAddon.hasResource("testfile1"));
+    do_check_false(aAddon.hasResource("testfile2"));
+  }
+  else {
+    do_check_false(aAddon.hasResource("testfile1"));
+    do_check_true(aAddon.hasResource("testfile2"));
+  }
+
+  do_check_eq(aAddon.pendingOperations, AddonManager.PENDING_NONE);
+}
+
+function check_addon_upgrading(aAddon) {
+  do_check_neq(aAddon, null);
+  do_check_eq(aAddon.version, "1.0");
+  do_check_true(aAddon.isActive);
+  do_check_true(isExtensionInAddonsList(profileDir, aAddon.id));
+
+  do_check_true(aAddon.hasResource("testfile"));
+  do_check_true(aAddon.hasResource("testfile1"));
+  do_check_false(aAddon.hasResource("testfile2"));
+
+  do_check_eq(aAddon.pendingOperations, AddonManager.PENDING_UPGRADE);
+
+  do_check_eq(aAddon.pendingUpgrade.version, "2.0");
+}
+
+function check_addon_uninstalling(aAddon, aAfterRestart) {
+  do_check_neq(aAddon, null);
+  do_check_eq(aAddon.version, "1.0");
+
+  if (aAfterRestart) {
+    do_check_false(aAddon.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, aAddon.id));
+  }
+  else {
+    do_check_true(aAddon.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, aAddon.id));
+  }
+
+  do_check_true(aAddon.hasResource("testfile"));
+  do_check_true(aAddon.hasResource("testfile1"));
+  do_check_false(aAddon.hasResource("testfile2"));
+
+  do_check_eq(aAddon.pendingOperations, AddonManager.PENDING_UNINSTALL);
+}
+
+function run_test_1() {
+  installAllFiles([do_get_addon("test_bug587088_1")], function() {
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+      check_addon(a1, "1.0");
+
+      // Lock either install.rdf for unpacked add-ons or the xpi for packed add-ons.
+      let uri = a1.getResourceURI("install.rdf");
+      if (uri.schemeIs("jar"))
+        uri = a1.getResourceURI();
+
+      let fstream = AM_Cc["@mozilla.org/network/file-input-stream;1"].
+                    createInstance(AM_Ci.nsIFileInputStream);
+      fstream.init(uri.QueryInterface(AM_Ci.nsIFileURL).file, -1, 0, 0);
+
+      installAllFiles([do_get_addon("test_bug587088_2")], function() {
+
+        check_addon_upgrading(a1);
+
+        restartManager();
+
+        AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1_2) {
+          check_addon_upgrading(a1_2);
+
+          restartManager();
+
+          AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1_3) {
+            check_addon_upgrading(a1_3);
+
+            fstream.close();
+
+            restartManager();
+
+            AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1_4) {
+              check_addon(a1_4, "2.0");
+
+              a1_4.uninstall();
+              do_execute_soon(run_test_2);
+            });
+          }));
+        }));
+      });
+    });
+  });
+}
+
+// Test that a failed uninstall gets rolled back
+function run_test_2() {
+  restartManager();
+
+  installAllFiles([do_get_addon("test_bug587088_1")], function() {
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+      check_addon(a1, "1.0");
+
+      // Lock either install.rdf for unpacked add-ons or the xpi for packed add-ons.
+      let uri = a1.getResourceURI("install.rdf");
+      if (uri.schemeIs("jar"))
+        uri = a1.getResourceURI();
+
+      let fstream = AM_Cc["@mozilla.org/network/file-input-stream;1"].
+                    createInstance(AM_Ci.nsIFileInputStream);
+      fstream.init(uri.QueryInterface(AM_Ci.nsIFileURL).file, -1, 0, 0);
+
+      a1.uninstall();
+
+      check_addon_uninstalling(a1);
+
+      restartManager();
+
+      AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1_2) {
+        check_addon_uninstalling(a1_2, true);
+
+        restartManager();
+
+        AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1_3) {
+          check_addon_uninstalling(a1_3, true);
+
+          fstream.close();
+
+          restartManager();
+
+          AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1_4) {
+            do_check_eq(a1_4, null);
+            var dir = profileDir.clone();
+            dir.append(do_get_expected_addon_name("addon1@tests.mozilla.org"));
+            do_check_false(dir.exists());
+            do_check_false(isExtensionInAddonsList(profileDir, "addon1@tests.mozilla.org"));
+
+            do_execute_soon(do_test_finished);
+          });
+        }));
+      }));
+    }));
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug594058.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug594058.js
new file mode 100644
index 000000000..858579815
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug594058.js
@@ -0,0 +1,88 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This tests is modifying a file in an unpacked extension
+// causes cache invalidation.
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+// Allow the mismatch UI to show
+Services.prefs.setBoolPref("extensions.showMismatchUI", true);
+
+Components.utils.import("resource://testing-common/MockRegistrar.jsm");
+
+var Ci = Components.interfaces;
+const extDir = gProfD.clone();
+extDir.append("extensions");
+
+var gCachePurged = false;
+
+// Override the window watcher
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, args) {
+    do_check_false(gCachePurged);
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+/**
+ * Start the test by installing extensions.
+ */
+function run_test() {
+  do_test_pending();
+  gCachePurged = false;
+
+  let obs = AM_Cc["@mozilla.org/observer-service;1"].
+    getService(AM_Ci.nsIObserverService);
+  obs.addObserver({
+    observe: function(aSubject, aTopic, aData) {
+      gCachePurged = true;
+    }
+  }, "startupcache-invalidate", false);
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  startupManager();
+  // nsAppRunner takes care of clearing this when a new app is installed
+  do_check_false(gCachePurged);
+
+  installAllFiles([do_get_addon("test_bug594058")], function() {
+    restartManager();
+    do_check_true(gCachePurged);
+    gCachePurged = false;
+
+    // Now, make it look like we've updated the file. First, start the EM
+    // so it records the bogus old time, then update the file and restart.
+    let extFile = extDir.clone();
+    let pastTime = extFile.lastModifiedTime - 5000;
+    extFile.append("bug594058@tests.mozilla.org");
+    setExtensionModifiedTime(extFile, pastTime);
+    let otherFile = extFile.clone();
+    otherFile.append("directory");
+    otherFile.lastModifiedTime = pastTime;
+    otherFile.append("file1");
+    otherFile.lastModifiedTime = pastTime;
+
+    restartManager();
+    gCachePurged = false;
+
+    otherFile.lastModifiedTime = pastTime + 5000;
+    restartManager();
+    do_check_true(gCachePurged);
+    gCachePurged = false;
+
+    restartManager();
+    do_check_false(gCachePurged);
+
+    do_test_finished();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug595081.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug595081.js
new file mode 100644
index 000000000..db53dc747
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug595081.js
@@ -0,0 +1,27 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that the AddonManager objects cannot be tampered with
+
+function run_test() {
+  // Setup for test
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+
+  // Verify that properties cannot be changed
+  let old = AddonManager.STATE_AVAILABLE;
+  AddonManager.STATE_AVAILABLE = 28;
+  do_check_eq(AddonManager.STATE_AVAILABLE, old);
+
+  // Verify that functions cannot be replaced
+  AddonManager.isInstallEnabled = function() {
+    do_throw("Should not be able to replace a function");
+  }
+  AddonManager.isInstallEnabled("application/x-xpinstall");
+
+  // Verify that properties cannot be added
+  AddonManager.foo = "bar";
+  do_check_false("foo" in AddonManager);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug595573.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug595573.js
new file mode 100644
index 000000000..7e2bf7d77
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug595573.js
@@ -0,0 +1,40 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This tests if addons with UUID based ids install and stay installed
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+  run_test_1();
+}
+
+function run_test_1() {
+  installAllFiles([do_get_addon("test_bug595573")], function() {
+    restartManager();
+
+    AddonManager.getAddonByID("{2f69dacd-03df-4150-a9f1-e8a7b2748829}", function(a1) {
+      do_check_neq(a1, null);
+      do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+      do_execute_soon(run_test_2);
+    });
+  });
+}
+
+function run_test_2() {
+  restartManager();
+
+  AddonManager.getAddonByID("{2f69dacd-03df-4150-a9f1-e8a7b2748829}", function(a1) {
+    do_check_neq(a1, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug596607.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug596607.js
new file mode 100644
index 000000000..bdcf93a1f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug596607.js
@@ -0,0 +1,147 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that a reference to a non-existent extension in the registry doesn't
+// break things
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+// Enable loading extensions from the user and system scopes
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_USER +
+                          AddonManager.SCOPE_SYSTEM);
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+const addon1Dir = writeInstallRDFForExtension(addon1, gProfD, "addon1");
+const addon2Dir = writeInstallRDFForExtension(addon2, gProfD, "addon2");
+const addon3Dir = gProfD.clone();
+addon3Dir.append("addon3@tests.mozilla.org");
+
+let registry;
+
+function run_test() {
+  // This test only works where there is a registry.
+  if (!("nsIWindowsRegKey" in AM_Ci))
+    return;
+
+  registry = new MockRegistry();
+  do_register_cleanup(() => {
+    registry.shutdown();
+  });
+
+  do_test_pending();
+
+  run_test_1();
+}
+
+// Tests whether starting a fresh profile with a bad entry works
+function run_test_1() {
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_LOCAL_MACHINE,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon1@tests.mozilla.org", addon1Dir.path);
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon2@tests.mozilla.org", addon2Dir.path);
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon3@tests.mozilla.org", addon3Dir.path);
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org"], function([a1, a2, a3]) {
+    do_check_neq(a1, null);
+    do_check_true(a1.isActive);
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_eq(a1.scope, AddonManager.SCOPE_SYSTEM);
+
+    do_check_neq(a2, null);
+    do_check_true(a2.isActive);
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_eq(a2.scope, AddonManager.SCOPE_USER);
+
+    do_check_eq(a3, null);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+// Tests whether removing the bad entry has any effect
+function run_test_2() {
+  shutdownManager();
+
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon3@tests.mozilla.org", addon3Dir.path);
+
+  startupManager(false);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org"], function([a1, a2, a3]) {
+    do_check_neq(a1, null);
+    do_check_true(a1.isActive);
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_eq(a1.scope, AddonManager.SCOPE_SYSTEM);
+
+    do_check_neq(a2, null);
+    do_check_true(a2.isActive);
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_eq(a2.scope, AddonManager.SCOPE_USER);
+
+    do_check_eq(a3, null);
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Tests adding the bad entry to an existing profile has any effect
+function run_test_3() {
+  shutdownManager();
+
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon3@tests.mozilla.org", null);
+
+  startupManager(false);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org"], function([a1, a2, a3]) {
+    do_check_neq(a1, null);
+    do_check_true(a1.isActive);
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_eq(a1.scope, AddonManager.SCOPE_SYSTEM);
+
+    do_check_neq(a2, null);
+    do_check_true(a2.isActive);
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_eq(a2.scope, AddonManager.SCOPE_USER);
+
+    do_check_eq(a3, null);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug616841.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug616841.js
new file mode 100644
index 000000000..d0c973960
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug616841.js
@@ -0,0 +1,26 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that string comparisons work correctly in callbacks
+
+function test_string_compare() {
+  do_check_true("C".localeCompare("D") < 0);
+  do_check_true("D".localeCompare("C") > 0);
+  do_check_true("\u010C".localeCompare("D") < 0);
+  do_check_true("D".localeCompare("\u010C") > 0);
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+
+  do_test_pending();
+
+  test_string_compare();
+
+  AddonManager.getAddonByID("foo", function(aAddon) {
+    test_string_compare();
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug619730.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug619730.js
new file mode 100644
index 000000000..1c21385e0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug619730.js
@@ -0,0 +1,64 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests whether
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_bug619730.xml", gTestserver);
+
+function load_blocklist(file, aCallback) {
+  Services.obs.addObserver(function() {
+    Services.obs.removeObserver(arguments.callee, "blocklist-updated");
+
+    do_execute_soon(aCallback);
+  }, "blocklist-updated", false);
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+var gSawGFX = false;
+var gSawTest = false;
+
+// Performs the initial setup
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    do_check_true(aSubject instanceof AM_Ci.nsIDOMElement);
+    do_check_eq(aSubject.getAttribute("testattr"), "GFX");
+    do_check_eq(aSubject.childNodes.length, 2);
+    gSawGFX = true;
+  }, "blocklist-data-gfxItems", false);
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    do_check_true(aSubject instanceof AM_Ci.nsIDOMElement);
+    do_check_eq(aSubject.getAttribute("testattr"), "FOO");
+    do_check_eq(aSubject.childNodes.length, 3);
+    gSawTest = true;
+  }, "blocklist-data-testItems", false);
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    do_check_true(gSawGFX);
+    do_check_true(gSawTest);
+  }, "blocklist-data-fooItems", false);
+
+  // Need to wait for the blocklist to load; Bad Things happen if the test harness
+  // shuts down AddonManager before the blocklist service is done telling it about
+  // changes
+  load_blocklist("test_bug619730.xml", () => gTestserver.stop(do_test_finished));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug620837.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug620837.js
new file mode 100644
index 000000000..6bfbfcaf2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug620837.js
@@ -0,0 +1,145 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://testing-common/httpd.js");
+
+const PREF_BLOCKLIST_LASTUPDATETIME   = "app.update.lastUpdateTime.blocklist-background-update-timer";
+const PREF_BLOCKLIST_PINGCOUNTTOTAL   = "extensions.blocklist.pingCountTotal";
+const PREF_BLOCKLIST_PINGCOUNTVERSION = "extensions.blocklist.pingCountVersion";
+
+const SECONDS_IN_DAY = 60 * 60 * 24;
+
+var gExpectedQueryString = null;
+var gNextTest = null;
+var gTestserver = null;
+
+function notify_blocklist() {
+  var blocklist = AM_Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(AM_Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+function pathHandler(metadata, response) {
+  do_check_eq(metadata.queryString, gExpectedQueryString);
+  gNextTest();
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  gTestserver = new HttpServer();
+  gTestserver.registerPathHandler("/", pathHandler);
+  gTestserver.start(-1);
+  gPort = gTestserver.identity.primaryPort;
+
+  Services.prefs.setCharPref("extensions.blocklist.url",
+                             "http://localhost:" + gPort +
+                             "/?%PING_COUNT%&%TOTAL_PING_COUNT%&%DAYS_SINCE_LAST_PING%");
+
+  do_test_pending();
+  test1();
+}
+
+function getNowInSeconds() {
+  return Math.round(Date.now() / 1000);
+}
+
+function test1() {
+  gNextTest = test2;
+  gExpectedQueryString = "1&1&new";
+  notify_blocklist();
+}
+
+function test2() {
+  gNextTest = test3;
+  gExpectedQueryString = "invalid&invalid&invalid";
+  notify_blocklist();
+}
+
+function test3() {
+  Services.prefs.setIntPref(PREF_BLOCKLIST_LASTUPDATETIME,
+                            (getNowInSeconds() - SECONDS_IN_DAY));
+  gNextTest = test4;
+  gExpectedQueryString = "2&2&1";
+  notify_blocklist();
+}
+
+function test4() {
+  Services.prefs.setIntPref(PREF_BLOCKLIST_PINGCOUNTVERSION, -1);
+  Services.prefs.setIntPref(PREF_BLOCKLIST_LASTUPDATETIME,
+                            (getNowInSeconds() - (SECONDS_IN_DAY * 2)));
+  gNextTest = test5;
+  gExpectedQueryString = "1&3&2";
+  notify_blocklist();
+}
+
+function test5() {
+  Services.prefs.setIntPref(PREF_BLOCKLIST_LASTUPDATETIME, getNowInSeconds());
+  gNextTest = test6;
+  gExpectedQueryString = "invalid&invalid&0";
+  notify_blocklist();
+}
+
+function test6() {
+  Services.prefs.setIntPref(PREF_BLOCKLIST_LASTUPDATETIME,
+                            (getNowInSeconds() - (SECONDS_IN_DAY * 3)));
+  gNextTest = test7;
+  gExpectedQueryString = "2&4&3";
+  notify_blocklist();
+}
+
+function test7() {
+  Services.prefs.setIntPref(PREF_BLOCKLIST_PINGCOUNTVERSION, 2147483647);
+  Services.prefs.setIntPref(PREF_BLOCKLIST_LASTUPDATETIME,
+                            (getNowInSeconds() - (SECONDS_IN_DAY * 4)));
+  gNextTest = test8;
+  gExpectedQueryString = "2147483647&5&4";
+  notify_blocklist();
+}
+
+function test8() {
+  Services.prefs.setIntPref(PREF_BLOCKLIST_LASTUPDATETIME,
+                            (getNowInSeconds() - (SECONDS_IN_DAY * 5)));
+  gNextTest = test9;
+  gExpectedQueryString = "1&6&5";
+  notify_blocklist();
+}
+
+function test9() {
+  Services.prefs.setIntPref(PREF_BLOCKLIST_PINGCOUNTTOTAL, 2147483647);
+  Services.prefs.setIntPref(PREF_BLOCKLIST_LASTUPDATETIME,
+                            (getNowInSeconds() - (SECONDS_IN_DAY * 6)));
+  gNextTest = test10;
+  gExpectedQueryString = "2&2147483647&6";
+  notify_blocklist();
+}
+
+function test10() {
+  Services.prefs.setIntPref(PREF_BLOCKLIST_LASTUPDATETIME,
+                            (getNowInSeconds() - (SECONDS_IN_DAY * 7)));
+  gNextTest = test11;
+  gExpectedQueryString = "3&1&7";
+  notify_blocklist();
+}
+
+function test11() {
+  Services.prefs.setIntPref(PREF_BLOCKLIST_PINGCOUNTVERSION, -1);
+  Services.prefs.setIntPref(PREF_BLOCKLIST_LASTUPDATETIME,
+                            (getNowInSeconds() - (SECONDS_IN_DAY * 8)));
+  gNextTest = test12;
+  gExpectedQueryString = "1&2&8";
+  notify_blocklist();
+}
+
+function test12() {
+  Services.prefs.setIntPref(PREF_BLOCKLIST_LASTUPDATETIME,
+                            (getNowInSeconds() - (SECONDS_IN_DAY * 9)));
+  gNextTest = finish;
+  gExpectedQueryString = "2&3&9";
+  notify_blocklist();
+}
+
+function finish() {
+  gTestserver.stop(do_test_finished);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug655254.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug655254.js
new file mode 100644
index 000000000..449c59065
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug655254.js
@@ -0,0 +1,164 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that moving an extension in the filesystem without any other
+// change still keeps updated compatibility information
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+// Enable loading extensions from the user and system scopes
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_USER);
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "1.9.2");
+
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+mapFile("/data/test_bug655254.rdf", testserver);
+
+var userDir = gProfD.clone();
+userDir.append("extensions2");
+userDir.append(gAppInfo.ID);
+
+var dirProvider = {
+  getFile: function(aProp, aPersistent) {
+    aPersistent.value = false;
+    if (aProp == "XREUSysExt")
+      return userDir.parent;
+    return null;
+  },
+
+  QueryInterface: XPCOMUtils.generateQI([AM_Ci.nsIDirectoryServiceProvider,
+                                         AM_Ci.nsISupports])
+};
+Services.dirsvc.registerProvider(dirProvider);
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  updateURL: "http://localhost:" + gPort + "/data/test_bug655254.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Set up the profile
+function run_test() {
+  do_test_pending();
+  run_test_1();
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+function run_test_1() {
+  var time = Date.now();
+  var dir = writeInstallRDFForExtension(addon1, userDir);
+  setExtensionModifiedTime(dir, time);
+
+  manuallyInstall(do_get_addon("test_bug655254_2"), userDir, "addon2@tests.mozilla.org");
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org"], function([a1, a2]) {
+    do_check_neq(a1, null);
+    do_check_true(a1.appDisabled);
+    do_check_false(a1.isActive);
+    do_check_false(isExtensionInAddonsList(userDir, a1.id));
+
+    do_check_neq(a2, null);
+    do_check_false(a2.appDisabled);
+    do_check_true(a2.isActive);
+    do_check_false(isExtensionInAddonsList(userDir, a2.id));
+    do_check_eq(Services.prefs.getIntPref("bootstraptest.active_version"), 1);
+
+    a1.findUpdates({
+      onUpdateFinished: function() {
+        restartManager();
+
+        AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1_2) {
+          do_check_neq(a1_2, null);
+          do_check_false(a1_2.appDisabled);
+          do_check_true(a1_2.isActive);
+          do_check_true(isExtensionInAddonsList(userDir, a1_2.id));
+
+          shutdownManager();
+
+          do_check_eq(Services.prefs.getIntPref("bootstraptest.active_version"), 0);
+
+          userDir.parent.moveTo(gProfD, "extensions3");
+          userDir = gProfD.clone();
+          userDir.append("extensions3");
+          userDir.append(gAppInfo.ID);
+          do_check_true(userDir.exists());
+
+          startupManager(false);
+
+          AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                       "addon2@tests.mozilla.org"], function([a1_3, a2_3]) {
+            do_check_neq(a1_3, null);
+            do_check_false(a1_3.appDisabled);
+            do_check_true(a1_3.isActive);
+            do_check_true(isExtensionInAddonsList(userDir, a1_3.id));
+
+            do_check_neq(a2_3, null);
+            do_check_false(a2_3.appDisabled);
+            do_check_true(a2_3.isActive);
+            do_check_false(isExtensionInAddonsList(userDir, a2_3.id));
+            do_check_eq(Services.prefs.getIntPref("bootstraptest.active_version"), 1);
+
+            do_execute_soon(run_test_2);
+          });
+        }));
+      }
+    }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  });
+}
+
+// Set up the profile
+function run_test_2() {
+  AddonManager.getAddonByID("addon2@tests.mozilla.org", callback_soon(function(a2) {
+   do_check_neq(a2, null);
+   do_check_false(a2.appDisabled);
+   do_check_true(a2.isActive);
+   do_check_false(isExtensionInAddonsList(userDir, a2.id));
+   do_check_eq(Services.prefs.getIntPref("bootstraptest.active_version"), 1);
+
+   a2.userDisabled = true;
+   do_check_eq(Services.prefs.getIntPref("bootstraptest.active_version"), 0);
+
+   shutdownManager();
+
+   userDir.parent.moveTo(gProfD, "extensions4");
+   userDir = gProfD.clone();
+   userDir.append("extensions4");
+   userDir.append(gAppInfo.ID);
+   do_check_true(userDir.exists());
+
+   startupManager(false);
+
+   AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                "addon2@tests.mozilla.org"], function([a1_2, a2_2]) {
+     do_check_neq(a1_2, null);
+     do_check_false(a1_2.appDisabled);
+     do_check_true(a1_2.isActive);
+     do_check_true(isExtensionInAddonsList(userDir, a1_2.id));
+
+     do_check_neq(a2_2, null);
+     do_check_true(a2_2.userDisabled);
+     do_check_false(a2_2.isActive);
+     do_check_false(isExtensionInAddonsList(userDir, a2_2.id));
+     do_check_eq(Services.prefs.getIntPref("bootstraptest.active_version"), 0);
+
+     end_test();
+   });
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug659772.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug659772.js
new file mode 100644
index 000000000..6e98a69a4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug659772.js
@@ -0,0 +1,340 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that a pending upgrade during a schema update doesn't break things
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 4",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  run_test_1();
+}
+
+// Tests whether a schema migration without app version change works
+function run_test_1() {
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org"],
+                              function([a1, a2, a3, a4]) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "2.0");
+    do_check_false(a1.appDisabled);
+    do_check_false(a1.userDisabled);
+    do_check_true(a1.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, addon1.id));
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.version, "2.0");
+    do_check_false(a2.appDisabled);
+    do_check_false(a2.userDisabled);
+    do_check_true(a2.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, addon2.id));
+
+    do_check_neq(a3, null);
+    do_check_eq(a3.version, "2.0");
+    do_check_false(a3.appDisabled);
+    do_check_false(a3.userDisabled);
+    do_check_true(a3.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, addon3.id));
+
+    do_check_neq(a4, null);
+    do_check_eq(a4.version, "2.0");
+    do_check_true(a4.appDisabled);
+    do_check_false(a4.userDisabled);
+    do_check_false(a4.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, addon4.id));
+
+    // Prepare the add-on update, and a bootstrapped addon (bug 693714)
+    installAllFiles([
+      do_get_addon("test_bug659772"),
+      do_get_addon("test_bootstrap1_1")
+    ], function() {
+      shutdownManager();
+
+      // Make it look like the next time the app is started it has a new DB schema
+      changeXPIDBVersion(1);
+      Services.prefs.setIntPref("extensions.databaseSchema", 1);
+
+      let jsonfile = gProfD.clone();
+      jsonfile.append("extensions");
+      jsonfile.append("staged");
+      jsonfile.append("addon3@tests.mozilla.org.json");
+      do_check_true(jsonfile.exists());
+
+      // Remove an unnecessary property from the cached manifest
+      let fis = AM_Cc["@mozilla.org/network/file-input-stream;1"].
+                   createInstance(AM_Ci.nsIFileInputStream);
+      let json = AM_Cc["@mozilla.org/dom/json;1"].
+                 createInstance(AM_Ci.nsIJSON);
+      fis.init(jsonfile, -1, 0, 0);
+      let addonObj = json.decodeFromStream(fis, jsonfile.fileSize);
+      fis.close();
+      delete addonObj.optionsType;
+
+      let stream = AM_Cc["@mozilla.org/network/file-output-stream;1"].
+                   createInstance(AM_Ci.nsIFileOutputStream);
+      let converter = AM_Cc["@mozilla.org/intl/converter-output-stream;1"].
+                      createInstance(AM_Ci.nsIConverterOutputStream);
+      stream.init(jsonfile, FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE |
+                            FileUtils.MODE_TRUNCATE, FileUtils.PERMS_FILE,
+                            0);
+      converter.init(stream, "UTF-8", 0, 0x0000);
+      converter.writeString(JSON.stringify(addonObj));
+      converter.close();
+      stream.close();
+
+      Services.prefs.clearUserPref("bootstraptest.install_reason");
+      Services.prefs.clearUserPref("bootstraptest.uninstall_reason");
+
+      startupManager(false);
+
+      AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                   "addon2@tests.mozilla.org",
+                                   "addon3@tests.mozilla.org",
+                                   "addon4@tests.mozilla.org"],
+                                  function([a1_2, a2_2, a3_2, a4_2]) {
+        do_check_neq(a1_2, null);
+        do_check_eq(a1_2.version, "2.0");
+        do_check_false(a1_2.appDisabled);
+        do_check_false(a1_2.userDisabled);
+        do_check_true(a1_2.isActive);
+        do_check_true(isExtensionInAddonsList(profileDir, addon1.id));
+
+        do_check_neq(a2_2, null);
+        do_check_eq(a2_2.version, "2.0");
+        do_check_false(a2_2.appDisabled);
+        do_check_false(a2_2.userDisabled);
+        do_check_true(a2_2.isActive);
+        do_check_true(isExtensionInAddonsList(profileDir, addon2.id));
+
+        // Should stay enabled because we migrate the compat info from
+        // the previous version of the DB
+        do_check_neq(a3_2, null);
+        do_check_eq(a3_2.version, "2.0");
+        todo_check_false(a3_2.appDisabled); // XXX unresolved issue
+        do_check_false(a3_2.userDisabled);
+        todo_check_true(a3_2.isActive); // XXX same
+        todo_check_true(isExtensionInAddonsList(profileDir, addon3.id)); // XXX same
+
+        do_check_neq(a4_2, null);
+        do_check_eq(a4_2.version, "2.0");
+        do_check_true(a4_2.appDisabled);
+        do_check_false(a4_2.userDisabled);
+        do_check_false(a4_2.isActive);
+        do_check_false(isExtensionInAddonsList(profileDir, addon4.id));
+
+        // Check that install and uninstall haven't been called on the bootstrapped addon
+        do_check_false(Services.prefs.prefHasUserValue("bootstraptest.install_reason"));
+        do_check_false(Services.prefs.prefHasUserValue("bootstraptest.uninstall_reason"));
+
+        a1_2.uninstall();
+        a2_2.uninstall();
+        a3_2.uninstall();
+        a4_2.uninstall();
+        do_execute_soon(run_test_2);
+      });
+    });
+  });
+}
+
+// Tests whether a schema migration with app version change works
+function run_test_2() {
+  restartManager();
+
+  shutdownManager();
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org"],
+                              function([a1, a2, a3, a4]) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "2.0");
+    do_check_false(a1.appDisabled);
+    do_check_false(a1.userDisabled);
+    do_check_true(a1.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, addon1.id));
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.version, "2.0");
+    do_check_false(a2.appDisabled);
+    do_check_false(a2.userDisabled);
+    do_check_true(a2.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, addon2.id));
+
+    do_check_neq(a3, null);
+    do_check_eq(a3.version, "2.0");
+    do_check_false(a3.appDisabled);
+    do_check_false(a3.userDisabled);
+    do_check_true(a3.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, addon3.id));
+
+    do_check_neq(a4, null);
+    do_check_eq(a4.version, "2.0");
+    do_check_true(a4.appDisabled);
+    do_check_false(a4.userDisabled);
+    do_check_false(a4.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, addon4.id));
+
+    // Prepare the add-on update, and a bootstrapped addon (bug 693714)
+    installAllFiles([
+      do_get_addon("test_bug659772"),
+      do_get_addon("test_bootstrap1_1")
+    ], function() { do_execute_soon(prepare_schema_migrate); });
+
+    function prepare_schema_migrate() {
+      shutdownManager();
+
+      // Make it look like the next time the app is started it has a new DB schema
+      changeXPIDBVersion(1);
+      Services.prefs.setIntPref("extensions.databaseSchema", 1);
+
+      let jsonfile = gProfD.clone();
+      jsonfile.append("extensions");
+      jsonfile.append("staged");
+      jsonfile.append("addon3@tests.mozilla.org.json");
+      do_check_true(jsonfile.exists());
+
+      // Remove an unnecessary property from the cached manifest
+      let fis = AM_Cc["@mozilla.org/network/file-input-stream;1"].
+                   createInstance(AM_Ci.nsIFileInputStream);
+      let json = AM_Cc["@mozilla.org/dom/json;1"].
+                 createInstance(AM_Ci.nsIJSON);
+      fis.init(jsonfile, -1, 0, 0);
+      let addonObj = json.decodeFromStream(fis, jsonfile.fileSize);
+      fis.close();
+      delete addonObj.optionsType;
+
+      let stream = AM_Cc["@mozilla.org/network/file-output-stream;1"].
+                   createInstance(AM_Ci.nsIFileOutputStream);
+      let converter = AM_Cc["@mozilla.org/intl/converter-output-stream;1"].
+                      createInstance(AM_Ci.nsIConverterOutputStream);
+      stream.init(jsonfile, FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE |
+                            FileUtils.MODE_TRUNCATE, FileUtils.PERMS_FILE,
+                            0);
+      converter.init(stream, "UTF-8", 0, 0x0000);
+      converter.writeString(JSON.stringify(addonObj));
+      converter.close();
+      stream.close();
+
+      Services.prefs.clearUserPref("bootstraptest.install_reason");
+      Services.prefs.clearUserPref("bootstraptest.uninstall_reason");
+
+      gAppInfo.version = "2";
+      startupManager(true);
+
+      AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                   "addon2@tests.mozilla.org",
+                                   "addon3@tests.mozilla.org",
+                                   "addon4@tests.mozilla.org"],
+                                  callback_soon(function([a1_2, a2_2, a3_2, a4_2]) {
+        do_check_neq(a1_2, null);
+        do_check_eq(a1_2.version, "2.0");
+        do_check_true(a1_2.appDisabled);
+        do_check_false(a1_2.userDisabled);
+        do_check_false(a1_2.isActive);
+        do_check_false(isExtensionInAddonsList(profileDir, addon1.id));
+
+        do_check_neq(a2_2, null);
+        do_check_eq(a2_2.version, "2.0");
+        do_check_false(a2_2.appDisabled);
+        do_check_false(a2_2.userDisabled);
+        do_check_true(a2_2.isActive);
+        do_check_true(isExtensionInAddonsList(profileDir, addon2.id));
+
+        // Should become appDisabled because we migrate the compat info from
+        // the previous version of the DB
+        do_check_neq(a3_2, null);
+        do_check_eq(a3_2.version, "2.0");
+        todo_check_true(a3_2.appDisabled);
+        do_check_false(a3_2.userDisabled);
+        todo_check_false(a3_2.isActive);
+        todo_check_false(isExtensionInAddonsList(profileDir, addon3.id));
+
+        do_check_neq(a4_2, null);
+        do_check_eq(a4_2.version, "2.0");
+        do_check_false(a4_2.appDisabled);
+        do_check_false(a4_2.userDisabled);
+        do_check_true(a4_2.isActive);
+        do_check_true(isExtensionInAddonsList(profileDir, addon4.id));
+
+        // Check that install and uninstall haven't been called on the bootstrapped addon
+        do_check_false(Services.prefs.prefHasUserValue("bootstraptest.install_reason"));
+        do_check_false(Services.prefs.prefHasUserValue("bootstraptest.uninstall_reason"));
+
+        a1_2.uninstall();
+        a2_2.uninstall();
+        a3_2.uninstall();
+        a4_2.uninstall();
+        restartManager();
+
+        shutdownManager();
+
+        do_test_finished();
+      }));
+    }
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug675371.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug675371.js
new file mode 100644
index 000000000..6f2a5e7cd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug675371.js
@@ -0,0 +1,91 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_bug675371"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+
+    prepare_test({
+      "bug675371@tests.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], callback_soon(check_test));
+    install.install();
+  });
+}
+
+function check_test() {
+  AddonManager.getAddonByID("bug675371@tests.mozilla.org", do_exception_wrap(function(addon) {
+    do_check_neq(addon, null);
+    do_check_true(addon.isActive);
+
+    // Tests that chrome.manifest is registered when the addon is installed.
+    var target = { };
+    Services.scriptloader.loadSubScript("chrome://bug675371/content/test.js", target);
+    do_check_true(target.active);
+
+    prepare_test({
+      "bug675371@tests.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ]
+    });
+
+    // Tests that chrome.manifest is unregistered when the addon is disabled.
+    addon.userDisabled = true;
+    target.active = false;
+    try {
+      Services.scriptloader.loadSubScript("chrome://bug675371/content/test.js", target);
+      do_throw("Chrome file should not have been found");
+    } catch (e) {
+      do_check_false(target.active);
+    }
+
+    prepare_test({
+      "bug675371@tests.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ]
+    });
+
+    // Tests that chrome.manifest is registered when the addon is enabled.
+    addon.userDisabled = false;
+    target.active = false;
+    Services.scriptloader.loadSubScript("chrome://bug675371/content/test.js", target);
+    do_check_true(target.active);
+
+    prepare_test({
+      "bug675371@tests.mozilla.org": [
+        ["onUninstalling", false],
+        "onUninstalled"
+      ]
+    });
+
+    // Tests that chrome.manifest is unregistered when the addon is uninstalled.
+    addon.uninstall();
+    target.active = false;
+    try {
+      Services.scriptloader.loadSubScript("chrome://bug675371/content/test.js", target);
+      do_throw("Chrome file should not have been found");
+    } catch (e) {
+      do_check_false(target.active);
+    }
+
+    do_execute_soon(do_test_finished);
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug740612.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug740612.js
new file mode 100644
index 000000000..d17e7acde
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug740612.js
@@ -0,0 +1,40 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that attempts to override the global values fails but doesn't
+// destroy the world with it
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function getActiveVersion() {
+  return Services.prefs.getIntPref("bootstraptest.active_version");
+}
+
+function getInstalledVersion() {
+  return Services.prefs.getIntPref("bootstraptest.installed_version");
+}
+
+function run_test() {
+  do_test_pending();
+
+  manuallyInstall(do_get_addon("test_bug740612_1"), profileDir,
+                  "bug740612_1@tests.mozilla.org");
+  manuallyInstall(do_get_addon("test_bug740612_2"), profileDir,
+                  "bug740612_2@tests.mozilla.org");
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["bug740612_1@tests.mozilla.org",
+                               "bug740612_2@tests.mozilla.org"],
+                               function([a1, a2]) {
+    do_check_neq(a1, null);
+    do_check_neq(a2, null);
+    do_check_eq(getInstalledVersion(), "1.0");
+    do_check_eq(getActiveVersion(), "1.0");
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug753900.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug753900.js
new file mode 100644
index 000000000..206862339
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug753900.js
@@ -0,0 +1,86 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that strange characters in an add-on version don't break the
+// crash annotation.
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1,0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1:0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1,0",
+  name: "Test 3",
+  bootstrap: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1:0",
+  name: "Test 4",
+  bootstrap: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org"],
+                               function([a1, a2, a3, a4]) {
+
+    do_check_neq(a1, null);
+    do_check_in_crash_annotation(addon1.id, addon1.version);
+    do_check_neq(a2, null);
+    do_check_in_crash_annotation(addon2.id, addon2.version);
+    do_check_neq(a3, null);
+    do_check_in_crash_annotation(addon3.id, addon3.version);
+    do_check_neq(a4, null);
+    do_check_in_crash_annotation(addon4.id, addon4.version);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug757663.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug757663.js
new file mode 100644
index 000000000..54cee0839
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug757663.js
@@ -0,0 +1,112 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This test verifies that removing a listener during a callback for that type
+// of listener still results in all listeners being called.
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 1",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var listener1 = {
+  sawEvent: false,
+  onDisabling: function() {
+    this.sawEvent = true;
+    AddonManager.removeAddonListener(this);
+  },
+  onNewInstall: function() {
+    this.sawEvent = true;
+    AddonManager.removeInstallListener(this);
+  }
+};
+var listener2 = {
+  sawEvent: false,
+  onDisabling: function() {
+    this.sawEvent = true;
+  },
+  onNewInstall: function() {
+    this.sawEvent = true;
+  }
+};
+var listener3 = {
+  sawEvent: false,
+  onDisabling: function() {
+    this.sawEvent = true;
+  },
+  onNewInstall: function() {
+    this.sawEvent = true;
+  }
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  startupManager();
+
+  run_test_1();
+}
+
+function run_test_1() {
+  AddonManager.addAddonListener(listener1);
+  AddonManager.addAddonListener(listener2);
+  AddonManager.addAddonListener(listener3);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org"], function([a1]) {
+    do_check_neq(a1, null);
+    do_check_false(a1.userDisabled);
+    do_check_true(a1.isActive);
+
+    a1.userDisabled = true;
+
+    do_check_true(listener1.sawEvent);
+    listener1.sawEvent = false;
+    do_check_true(listener2.sawEvent);
+    listener2.sawEvent = false;
+    do_check_true(listener3.sawEvent);
+    listener3.sawEvent = false;
+
+    AddonManager.removeAddonListener(listener1);
+    AddonManager.removeAddonListener(listener2);
+    AddonManager.removeAddonListener(listener3);
+
+    a1.uninstall();
+    run_test_2();
+  });
+}
+
+function run_test_2() {
+  AddonManager.addInstallListener(listener1);
+  AddonManager.addInstallListener(listener2);
+  AddonManager.addInstallListener(listener3);
+
+  AddonManager.getInstallForFile(do_get_addon("test_bug757663"), function(aInstall) {
+
+    do_check_true(listener1.sawEvent);
+    listener1.sawEvent = false;
+    do_check_true(listener2.sawEvent);
+    listener2.sawEvent = false;
+    do_check_true(listener3.sawEvent);
+    listener3.sawEvent = false;
+
+    AddonManager.removeInstallListener(listener1);
+    AddonManager.removeInstallListener(listener2);
+    AddonManager.removeInstallListener(listener3);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_bug953156.js b/toolkit/mozapps/webextensions/test/xpcshell/test_bug953156.js
new file mode 100644
index 000000000..a7acb9ad2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_bug953156.js
@@ -0,0 +1,51 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_bug675371"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+
+    prepare_test({
+      "bug675371@tests.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded"
+    ], callback_soon(check_test));
+    install.install();
+  });
+}
+
+function check_test() {
+  AddonManager.getAddonByID("bug675371@tests.mozilla.org", do_exception_wrap(function(addon) {
+    do_check_neq(addon, null);
+    do_check_true(addon.isActive);
+
+    // Tests that chrome.manifest is registered when the addon is installed.
+    var target = { active: false };
+    Services.scriptloader.loadSubScript("chrome://bug675371/content/test.js", target);
+    do_check_true(target.active);
+
+    shutdownManager();
+
+    // Tests that chrome.manifest remains registered at app shutdown.
+    target.active = false;
+    Services.scriptloader.loadSubScript("chrome://bug675371/content/test.js", target);
+    do_check_true(target.active);
+
+    do_execute_soon(do_test_finished);
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_cache_certdb.js b/toolkit/mozapps/webextensions/test/xpcshell/test_cache_certdb.js
new file mode 100644
index 000000000..edb442aad
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_cache_certdb.js
@@ -0,0 +1,82 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// We require signature checks for this test
+Services.prefs.setBoolPref(PREF_XPI_SIGNATURES_REQUIRED, true);
+gUseRealCertChecks = true;
+
+const CERT = `MIIDITCCAgmgAwIBAgIJALAv8fydd6nBMA0GCSqGSIb3DQEBBQUAMCcxJTAjBgNV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`;
+
+function overrideCertDB() {
+  // Unregister the real database.
+  let registrar = Components.manager.QueryInterface(AM_Ci.nsIComponentRegistrar);
+  let factory = registrar.getClassObject(CERTDB_CID, AM_Ci.nsIFactory);
+  registrar.unregisterFactory(CERTDB_CID, factory);
+
+  // Get the real DB
+  let realCertDB = factory.createInstance(null, AM_Ci.nsIX509CertDB);
+
+  let fakeCert = realCertDB.constructX509FromBase64(CERT.replace(/\n/g, ""));
+
+  let fakeCertDB = {
+    openSignedAppFileAsync(root, file, callback) {
+      callback.openSignedAppFileFinished(Components.results.NS_OK, null, fakeCert);
+    },
+
+    verifySignedDirectoryAsync(root, dir, callback) {
+      callback.verifySignedDirectoryFinished(Components.results.NS_OK, fakeCert);
+    },
+
+    QueryInterface: XPCOMUtils.generateQI([AM_Ci.nsIX509CertDB])
+  };
+
+  for (let property of Object.keys(realCertDB)) {
+    if (property in fakeCertDB) {
+      continue;
+    }
+
+    if (typeof realCertDB[property] == "function") {
+      fakeCertDB[property] = realCertDB[property].bind(realCertDB);
+    }
+  }
+
+  let certDBFactory = {
+    createInstance: function(outer, iid) {
+      if (outer != null) {
+        throw Components.results.NS_ERROR_NO_AGGREGATION;
+      }
+      return fakeCertDB.QueryInterface(iid);
+    }
+  };
+  registrar.registerFactory(CERTDB_CID, "CertDB",
+                            CERTDB_CONTRACTID, certDBFactory);
+}
+
+add_task(function*() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+
+  // Once the application is started we shouldn't be able to replace the
+  // certificate database
+  overrideCertDB();
+
+  let install = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), resolve));
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_cacheflush.js b/toolkit/mozapps/webextensions/test/xpcshell/test_cacheflush.js
new file mode 100644
index 000000000..f3448abd2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_cacheflush.js
@@ -0,0 +1,127 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that flushing the zipreader cache happens when appropriate
+
+var gExpectedFile = null;
+var gCacheFlushCount = 0;
+
+var CacheFlushObserver = {
+  observe: function(aSubject, aTopic, aData) {
+    if (aTopic != "flush-cache-entry")
+      return;
+    // Ignore flushes triggered by the fake cert DB
+    if (aData == "cert-override")
+      return;
+
+    do_check_true(gExpectedFile != null);
+    do_check_true(aSubject instanceof AM_Ci.nsIFile);
+    do_check_eq(aSubject.path, gExpectedFile.path);
+    gCacheFlushCount++;
+  }
+};
+
+function run_test() {
+  do_test_pending();
+  Services.obs.addObserver(CacheFlushObserver, "flush-cache-entry", false);
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "2");
+
+  startupManager();
+
+  run_test_1();
+}
+
+// Tests that the cache is flushed when cancelling a pending install
+function run_test_1() {
+  AddonManager.getInstallForFile(do_get_addon("test_cacheflush1"), function(aInstall) {
+    completeAllInstalls([aInstall], function() {
+      // We should flush the staged XPI when cancelling the install
+      gExpectedFile = gProfD.clone();
+      gExpectedFile.append("extensions");
+      gExpectedFile.append("staged");
+      gExpectedFile.append("addon1@tests.mozilla.org.xpi");
+      aInstall.cancel();
+
+      do_check_eq(gCacheFlushCount, 1);
+      gExpectedFile = null;
+      gCacheFlushCount = 0;
+
+      run_test_2();
+    });
+  });
+}
+
+// Tests that the cache is flushed when uninstalling an add-on
+function run_test_2() {
+  installAllFiles([do_get_addon("test_cacheflush1")], function() {
+    // Installing will flush the staged XPI during startup
+    gExpectedFile = gProfD.clone();
+    gExpectedFile.append("extensions");
+    gExpectedFile.append("staged");
+    gExpectedFile.append("addon1@tests.mozilla.org.xpi");
+    restartManager();
+    do_check_eq(gCacheFlushCount, 1);
+    gExpectedFile = null;
+    gCacheFlushCount = 0;
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+      // We should flush the installed XPI when uninstalling
+      do_check_true(a1 != null);
+      a1.uninstall();
+      do_check_eq(gCacheFlushCount, 0);
+
+      gExpectedFile = gProfD.clone();
+      gExpectedFile.append("extensions");
+      gExpectedFile.append("addon1@tests.mozilla.org.xpi");
+      restartManager();
+      do_check_eq(gCacheFlushCount, 1);
+      gExpectedFile = null;
+      gCacheFlushCount = 0;
+
+      do_execute_soon(run_test_3);
+    });
+  });
+}
+
+// Tests that the cache is flushed when installing a restartless add-on
+function run_test_3() {
+  AddonManager.getInstallForFile(do_get_addon("test_cacheflush2"), function(aInstall) {
+    aInstall.addListener({
+      onInstallStarted: function() {
+        // We should flush the staged XPI when completing the install
+        gExpectedFile = gProfD.clone();
+        gExpectedFile.append("extensions");
+        gExpectedFile.append("staged");
+        gExpectedFile.append("addon2@tests.mozilla.org.xpi");
+      },
+
+      onInstallEnded: function() {
+        do_check_eq(gCacheFlushCount, 1);
+        gExpectedFile = null;
+        gCacheFlushCount = 0;
+
+        do_execute_soon(run_test_4);
+      }
+    });
+
+    aInstall.install();
+  });
+}
+
+// Tests that the cache is flushed when uninstalling a restartless add-on
+function run_test_4() {
+  AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+    // We should flush the installed XPI when uninstalling
+    gExpectedFile = gProfD.clone();
+    gExpectedFile.append("extensions");
+    gExpectedFile.append("addon2@tests.mozilla.org.xpi");
+
+    a2.uninstall();
+    do_check_eq(gCacheFlushCount, 2);
+    gExpectedFile = null;
+    gCacheFlushCount = 0;
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_checkCompatibility_themeOverride.js b/toolkit/mozapps/webextensions/test/xpcshell/test_checkCompatibility_themeOverride.js
new file mode 100644
index 000000000..b6cb13e08
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_checkCompatibility_themeOverride.js
@@ -0,0 +1,93 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that the (temporary)
+// extensions.checkCompatibility.temporaryThemeOverride_minAppVersion
+// preference works.
+
+var ADDONS = [{
+  id: "addon1@tests.mozilla.org",
+  type: 4,
+  internalName: "theme1/1.0",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1.0",
+    maxVersion: "1.0"
+  }]
+}, {
+  id: "addon2@tests.mozilla.org",
+  type: 4,
+  internalName: "theme2/1.0",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2.0",
+    maxVersion: "2.0"
+  }]
+}];
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3.0", "1");
+
+  for (let a of ADDONS) {
+    writeInstallRDFForExtension(a, profileDir);
+  }
+
+  startupManager();
+
+  run_test_1();
+}
+
+function run_test_1() {
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org"],
+                               function([a1, a2]) {
+
+    do_check_neq(a1, null);
+    do_check_false(a1.isActive);
+    do_check_false(a1.isCompatible);
+    do_check_true(a1.appDisabled);
+
+    do_check_neq(a2, null);
+    do_check_false(a2.isActive);
+    do_check_false(a2.isCompatible);
+    do_check_true(a1.appDisabled);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+function run_test_2() {
+  Services.prefs.setCharPref("extensions.checkCompatibility.temporaryThemeOverride_minAppVersion", "2.0");
+  if (isNightlyChannel())
+    Services.prefs.setBoolPref("extensions.checkCompatibility.nightly", false);
+  else
+    Services.prefs.setBoolPref("extensions.checkCompatibility.3.0", false);
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org"],
+                               function([a1, a2]) {
+
+    do_check_neq(a1, null);
+    do_check_false(a1.isActive);
+    do_check_false(a1.isCompatible);
+    do_check_true(a1.appDisabled);
+
+    do_check_neq(a2, null);
+    do_check_false(a2.isActive);
+    do_check_false(a2.isCompatible);
+    do_check_false(a2.appDisabled);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_checkcompatibility.js b/toolkit/mozapps/webextensions/test/xpcshell/test_checkcompatibility.js
new file mode 100644
index 000000000..b9fc0b3ab
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_checkcompatibility.js
@@ -0,0 +1,196 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that the extensions.checkCompatibility.* preferences work.
+
+var ADDONS = [{
+  // Cannot be enabled as it has no target app info for the applciation
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "unknown@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+}, {
+  // Always appears incompatible but can be enabled if compatibility checking is
+  // disabled
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+}, {
+  // Always appears incompatible but can be enabled if compatibility checking is
+  // disabled
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+}, { // Always compatible and enabled
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 4",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+}, { // Always compatible and enabled
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "3"
+  }]
+}];
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+var gIsNightly = false;
+
+function run_test() {
+  do_test_pending("checkcompatibility.js");
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2.2.3", "2");
+
+  ADDONS.forEach(function(a) {
+    writeInstallRDFForExtension(a, profileDir);
+  });
+
+  gIsNightly = isNightlyChannel();
+
+  startupManager();
+
+  run_test_1();
+}
+
+/**
+ * Checks that the add-ons are enabled as expected.
+ * @param   overridden
+ *          A boolean indicating that compatibility checking is overridden
+ * @param   a1
+ *          The Addon for addon1@tests.mozilla.org
+ * @param   a2
+ *          The Addon for addon2@tests.mozilla.org
+ * @param   a3
+ *          The Addon for addon3@tests.mozilla.org
+ * @param   a4
+ *          The Addon for addon4@tests.mozilla.org
+ * @param   a5
+ *          The Addon for addon5@tests.mozilla.org
+ */
+function check_state(overridden, a1, a2, a3, a4, a5) {
+  do_check_neq(a1, null);
+  do_check_false(a1.isActive);
+  do_check_false(a1.isCompatible);
+
+  do_check_neq(a2, null);
+  if (overridden)
+    do_check_true(a2.isActive);
+  else
+    do_check_false(a2.isActive);
+  do_check_false(a2.isCompatible);
+
+  do_check_neq(a3, null);
+  if (overridden)
+    do_check_true(a3.isActive);
+  else
+    do_check_false(a3.isActive);
+  do_check_false(a3.isCompatible);
+
+  do_check_neq(a4, null);
+  do_check_true(a4.isActive);
+  do_check_true(a4.isCompatible);
+
+  do_check_neq(a5, null);
+  do_check_true(a5.isActive);
+  do_check_true(a5.isCompatible);
+}
+
+// Tests that with compatibility checking enabled we see the incompatible
+// add-ons disabled
+function run_test_1() {
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+    check_state(false, a1, a2, a3, a4, a5);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+// Tests that with compatibility checking disabled we see the incompatible
+// add-ons enabled
+function run_test_2() {
+  if (gIsNightly)
+    Services.prefs.setBoolPref("extensions.checkCompatibility.nightly", false);
+  else
+    Services.prefs.setBoolPref("extensions.checkCompatibility.2.2", false);
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+    check_state(true, a1, a2, a3, a4, a5);
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Tests that with compatibility checking disabled we see the incompatible
+// add-ons enabled.
+function run_test_3() {
+  if (!gIsNightly)
+    Services.prefs.setBoolPref("extensions.checkCompatibility.2.1a", false);
+  restartManager("2.1a4");
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+    check_state(true, a1, a2, a3, a4, a5);
+
+    do_execute_soon(run_test_4);
+  });
+}
+
+// Tests that with compatibility checking enabled we see the incompatible
+// add-ons disabled.
+function run_test_4() {
+  if (gIsNightly)
+    Services.prefs.setBoolPref("extensions.checkCompatibility.nightly", true);
+  else
+    Services.prefs.setBoolPref("extensions.checkCompatibility.2.1a", true);
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+    check_state(false, a1, a2, a3, a4, a5);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_childprocess.js b/toolkit/mozapps/webextensions/test/xpcshell/test_childprocess.js
new file mode 100644
index 000000000..a6c635eac
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_childprocess.js
@@ -0,0 +1,21 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that the AddonManager refuses to load in child processes.
+
+function run_test() {
+  // Already loaded the module by head_addons.js. Need to unload this again, so
+  // that overriding the app-info and re-importing the module works.
+  Components.utils.unload("resource://gre/modules/AddonManager.jsm");
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  gAppInfo.processType = AM_Ci.nsIXULRuntime.PROCESS_TYPE_CONTENT;
+  try {
+    Components.utils.import("resource://gre/modules/AddonManager.jsm");
+    do_throw("AddonManager should have refused to load");
+  }
+  catch (ex) {
+    do_print(ex.message);
+    do_check_true(!!ex.message);
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_compatoverrides.js b/toolkit/mozapps/webextensions/test/xpcshell/test_compatoverrides.js
new file mode 100644
index 000000000..c079534c3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_compatoverrides.js
@@ -0,0 +1,259 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests compatibility overrides, for when strict compatibility checking is
+// disabled. See bug 693906.
+
+
+const PREF_GETADDONS_CACHE_ENABLED = "extensions.getAddons.cache.enabled";
+
+Components.utils.import("resource://testing-common/httpd.js");
+var gServer = new HttpServer();
+gServer.start(-1);
+gPort = gServer.identity.primaryPort;
+
+const PORT            = gPort;
+const BASE_URL        = "http://localhost:" + PORT;
+const DEFAULT_URL     = "about:blank";
+const REQ_URL         = "/data.xml";
+
+// register static file and mark it for interpolation
+mapUrlToFile(REQ_URL, do_get_file("data/test_compatoverrides.xml"), gServer);
+
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+Services.prefs.setCharPref(PREF_GETADDONS_BYIDS_PERFORMANCE,
+                           BASE_URL + REQ_URL);
+
+
+// Not hosted, no overrides
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test addon 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Hosted, no overrides
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test addon 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Hosted, matching override
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test addon 3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Hosted, matching override, wouldn't be compatible if strict checking is enabled
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test addon 4",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0.1",
+    maxVersion: "0.2"
+  }]
+};
+
+// Hosted, app ID doesn't match in override
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test addon 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Hosted, addon version range doesn't match in override
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "1.0",
+  name: "Test addon 6",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Hosted, app version range doesn't match in override
+var addon7 = {
+  id: "addon7@tests.mozilla.org",
+  version: "1.0",
+  name: "Test addon 7",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Hosted, multiple overrides
+var addon8 = {
+  id: "addon8@tests.mozilla.org",
+  version: "1.0",
+  name: "Test addon 8",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Not hosted, matching override
+var addon9 = {
+  id: "addon9@tests.mozilla.org",
+  version: "1.0",
+  name: "Test addon 9",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Not hosted, override is of unsupported type (compatible)
+var addon10 = {
+  id: "addon10@tests.mozilla.org",
+  version: "1.0",
+  name: "Test addon 10",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(addon7, profileDir);
+  writeInstallRDFForExtension(addon8, profileDir);
+  writeInstallRDFForExtension(addon9, profileDir);
+  writeInstallRDFForExtension(addon10, profileDir);
+
+  startupManager();
+
+  AddonManagerInternal.backgroundUpdateCheck().then(run_test_1);
+}
+
+function end_test() {
+  gServer.stop(do_test_finished);
+}
+
+function check_compat_status(aCallback) {
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "addon8@tests.mozilla.org",
+                               "addon9@tests.mozilla.org",
+                               "addon10@tests.mozilla.org"],
+                              function([a1, a2, a3, a4, a5, a6, a7, a8, a9, a10]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.compatibilityOverrides, null);
+    do_check_true(a1.isCompatible);
+    do_check_false(a1.appDisabled);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.compatibilityOverrides, null);
+    do_check_true(a2.isCompatible);
+    do_check_false(a2.appDisabled);
+
+    do_check_neq(a3, null);
+    do_check_neq(a3.compatibilityOverrides, null);
+    do_check_eq(a3.compatibilityOverrides.length, 1);
+    do_check_false(a3.isCompatible);
+    do_check_true(a3.appDisabled);
+
+    do_check_neq(a4, null);
+    do_check_neq(a4.compatibilityOverrides, null);
+    do_check_eq(a4.compatibilityOverrides.length, 1);
+    do_check_false(a4.isCompatible);
+    do_check_true(a4.appDisabled);
+
+    do_check_neq(a5, null);
+    do_check_eq(a5.compatibilityOverrides, null);
+    do_check_true(a5.isCompatible);
+    do_check_false(a5.appDisabled);
+
+    do_check_neq(a6, null);
+    do_check_neq(a6.compatibilityOverrides, null);
+    do_check_eq(a6.compatibilityOverrides.length, 1);
+    do_check_true(a6.isCompatible);
+    do_check_false(a6.appDisabled);
+
+    do_check_neq(a7, null);
+    do_check_neq(a7.compatibilityOverrides, null);
+    do_check_eq(a7.compatibilityOverrides.length, 1);
+    do_check_true(a7.isCompatible);
+    do_check_false(a7.appDisabled);
+
+    do_check_neq(a8, null);
+    do_check_neq(a8.compatibilityOverrides, null);
+    do_check_eq(a8.compatibilityOverrides.length, 3);
+    do_check_false(a8.isCompatible);
+    do_check_true(a8.appDisabled);
+
+    do_check_neq(a9, null);
+    do_check_neq(a9.compatibilityOverrides, null);
+    do_check_eq(a9.compatibilityOverrides.length, 1);
+    do_check_false(a9.isCompatible);
+    do_check_true(a9.appDisabled);
+
+    do_check_neq(a10, null);
+    do_check_eq(a10.compatibilityOverrides, null);
+    do_check_true(a10.isCompatible);
+    do_check_false(a10.appDisabled);
+
+    do_execute_soon(aCallback);
+  });
+}
+
+function run_test_1() {
+  do_print("Run test 1");
+  check_compat_status(run_test_2);
+}
+
+function run_test_2() {
+  do_print("Run test 2");
+  restartManager();
+  check_compat_status(end_test);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_corrupt.js b/toolkit/mozapps/webextensions/test/xpcshell/test_corrupt.js
new file mode 100644
index 000000000..210c6a936
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_corrupt.js
@@ -0,0 +1,406 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we rebuild something sensible from a corrupt database
+
+
+Components.utils.import("resource://testing-common/httpd.js");
+// Create and configure the HTTP server.
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+// register files with server
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+mapFile("/data/test_corrupt.rdf", testserver);
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+
+// Will be enabled
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will be disabled
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will get a compatibility update and stay enabled
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 3",
+  updateURL: "http://localhost:" + gPort + "/data/test_corrupt.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Will get a compatibility update and be enabled
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 4",
+  updateURL: "http://localhost:" + gPort + "/data/test_corrupt.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Would stay incompatible with strict compat
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Enabled bootstrapped
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 6",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Disabled bootstrapped
+var addon7 = {
+  id: "addon7@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 7",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// The default theme
+var theme1 = {
+  id: "theme1@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 1",
+  internalName: "classic/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// The selected theme
+var theme2 = {
+  id: "theme2@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 2",
+  internalName: "test/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(addon7, profileDir);
+  writeInstallRDFForExtension(theme1, profileDir);
+  writeInstallRDFForExtension(theme2, profileDir);
+
+  // Startup the profile and setup the initial state
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([a2, a3, a4,
+                                                                      a7, t2]) {
+    // Set up the initial state
+    a2.userDisabled = true;
+    a4.userDisabled = true;
+    a7.userDisabled = true;
+    t2.userDisabled = false;
+    a3.findUpdates({
+      onUpdateFinished: function() {
+        a4.findUpdates({
+          onUpdateFinished: function() {
+            do_execute_soon(run_test_1);
+          }
+        }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+      }
+    }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+  });
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+function run_test_1() {
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"],
+                               callback_soon(function([a1, a2, a3, a4, a5, a6, a7, t1, t2]) {
+    do_check_neq(a1, null);
+    do_check_true(a1.isActive);
+    do_check_false(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a2, null);
+    do_check_false(a2.isActive);
+    do_check_true(a2.userDisabled);
+    do_check_false(a2.appDisabled);
+    do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a3, null);
+    do_check_true(a3.isActive);
+    do_check_false(a3.userDisabled);
+    do_check_false(a3.appDisabled);
+    do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a4, null);
+    do_check_false(a4.isActive);
+    do_check_true(a4.userDisabled);
+    do_check_false(a4.appDisabled);
+    do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a5, null);
+    do_check_true(a5.isActive);
+    do_check_false(a5.userDisabled);
+    do_check_false(a5.appDisabled);
+    do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a6, null);
+    do_check_true(a6.isActive);
+    do_check_false(a6.userDisabled);
+    do_check_false(a6.appDisabled);
+    do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a7, null);
+    do_check_false(a7.isActive);
+    do_check_true(a7.userDisabled);
+    do_check_false(a7.appDisabled);
+    do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(t1, null);
+    do_check_false(t1.isActive);
+    do_check_true(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(t2, null);
+    do_check_true(t2.isActive);
+    do_check_false(t2.userDisabled);
+    do_check_false(t2.appDisabled);
+    do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+
+    // Shutdown and replace the database with a corrupt file (a directory
+    // serves this purpose). On startup the add-ons manager won't rebuild
+    // because there is a file there still.
+    shutdownManager();
+    gExtensionsJSON.remove(true);
+    gExtensionsJSON.create(AM_Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+    startupManager(false);
+
+    // Accessing the add-ons should open and recover the database
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon2@tests.mozilla.org",
+                                 "addon3@tests.mozilla.org",
+                                 "addon4@tests.mozilla.org",
+                                 "addon5@tests.mozilla.org",
+                                 "addon6@tests.mozilla.org",
+                                 "addon7@tests.mozilla.org",
+                                 "theme1@tests.mozilla.org",
+                                 "theme2@tests.mozilla.org"],
+                                 callback_soon(function([a1_2, a2_2, a3_2, a4_2, a5_2, a6_2, a7_2, t1_2, t2_2]) {
+      // Should be correctly recovered
+      do_check_neq(a1_2, null);
+      do_check_true(a1_2.isActive);
+      do_check_false(a1_2.userDisabled);
+      do_check_false(a1_2.appDisabled);
+      do_check_eq(a1_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      // Should be correctly recovered
+      do_check_neq(a2_2, null);
+      do_check_false(a2_2.isActive);
+      do_check_true(a2_2.userDisabled);
+      do_check_false(a2_2.appDisabled);
+      do_check_eq(a2_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      // The compatibility update won't be recovered but it should still be
+      // active for this session
+      do_check_neq(a3_2, null);
+      do_check_true(a3_2.isActive);
+      do_check_false(a3_2.userDisabled);
+      do_check_false(a3_2.appDisabled);
+      do_check_eq(a3_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      // The compatibility update won't be recovered and with strict
+      // compatibility it would not have been able to tell that it was
+      // previously userDisabled. However, without strict compat, it wasn't
+      // appDisabled, so it knows it must have been userDisabled.
+      do_check_neq(a4_2, null);
+      do_check_false(a4_2.isActive);
+      do_check_true(a4_2.userDisabled);
+      do_check_false(a4_2.appDisabled);
+      do_check_eq(a4_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a5_2, null);
+      do_check_true(a5_2.isActive);
+      do_check_false(a5_2.userDisabled);
+      do_check_false(a5_2.appDisabled);
+      do_check_eq(a5_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a6_2, null);
+      do_check_true(a6_2.isActive);
+      do_check_false(a6_2.userDisabled);
+      do_check_false(a6_2.appDisabled);
+      do_check_eq(a6_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a7_2, null);
+      do_check_false(a7_2.isActive);
+      do_check_true(a7_2.userDisabled);
+      do_check_false(a7_2.appDisabled);
+      do_check_eq(a7_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      // Should be correctly recovered
+      do_check_neq(t1_2, null);
+      do_check_false(t1_2.isActive);
+      do_check_true(t1_2.userDisabled);
+      do_check_false(t1_2.appDisabled);
+      do_check_eq(t1_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      // Should be correctly recovered
+      do_check_neq(t2_2, null);
+      do_check_true(t2_2.isActive);
+      do_check_false(t2_2.userDisabled);
+      do_check_false(t2_2.appDisabled);
+      do_check_eq(t2_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      Assert.throws(shutdownManager);
+      startupManager(false);
+
+      AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                   "addon2@tests.mozilla.org",
+                                   "addon3@tests.mozilla.org",
+                                   "addon4@tests.mozilla.org",
+                                   "addon5@tests.mozilla.org",
+                                   "addon6@tests.mozilla.org",
+                                   "addon7@tests.mozilla.org",
+                                   "theme1@tests.mozilla.org",
+                                   "theme2@tests.mozilla.org"],
+                                   callback_soon(function([a1_3, a2_3, a3_3, a4_3, a5_3, a6_3, a7_3, t1_3, t2_3]) {
+        do_check_neq(a1_3, null);
+        do_check_true(a1_3.isActive);
+        do_check_false(a1_3.userDisabled);
+        do_check_false(a1_3.appDisabled);
+        do_check_eq(a1_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a2_3, null);
+        do_check_false(a2_3.isActive);
+        do_check_true(a2_3.userDisabled);
+        do_check_false(a2_3.appDisabled);
+        do_check_eq(a2_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a3_3, null);
+        do_check_true(a3_3.isActive);
+        do_check_false(a3_3.userDisabled);
+        do_check_false(a3_3.appDisabled);
+        do_check_eq(a3_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a4_3, null);
+        do_check_false(a4_3.isActive);
+        do_check_true(a4_3.userDisabled);
+        do_check_false(a4_3.appDisabled);
+        do_check_eq(a4_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a5_3, null);
+        do_check_true(a5_3.isActive);
+        do_check_false(a5_3.userDisabled);
+        do_check_false(a5_3.appDisabled);
+        do_check_eq(a5_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a6_3, null);
+        do_check_true(a6_3.isActive);
+        do_check_false(a6_3.userDisabled);
+        do_check_false(a6_3.appDisabled);
+        do_check_eq(a6_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a7_3, null);
+        do_check_false(a7_3.isActive);
+        do_check_true(a7_3.userDisabled);
+        do_check_false(a7_3.appDisabled);
+        do_check_eq(a7_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(t1_3, null);
+        do_check_false(t1_3.isActive);
+        do_check_true(t1_3.userDisabled);
+        do_check_false(t1_3.appDisabled);
+        do_check_eq(t1_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(t2_3, null);
+        do_check_true(t2_3.isActive);
+        do_check_false(t2_3.userDisabled);
+        do_check_false(t2_3.appDisabled);
+        do_check_eq(t2_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        Assert.throws(shutdownManager);
+
+        end_test();
+      }));
+    }));
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_corrupt_strictcompat.js b/toolkit/mozapps/webextensions/test/xpcshell/test_corrupt_strictcompat.js
new file mode 100644
index 000000000..622973472
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_corrupt_strictcompat.js
@@ -0,0 +1,405 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we rebuild something sensible from a corrupt database
+
+
+Components.utils.import("resource://testing-common/httpd.js");
+// Create and configure the HTTP server.
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+// register files with server
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+mapFile("/data/test_corrupt.rdf", testserver);
+
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, true);
+
+// Will be enabled
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will be disabled
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will get a compatibility update and be enabled
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 3",
+  updateURL: "http://localhost:" + gPort + "/data/test_corrupt.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Will get a compatibility update and be disabled
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 4",
+  updateURL: "http://localhost:" + gPort + "/data/test_corrupt.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Stays incompatible
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Enabled bootstrapped
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 6",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Disabled bootstrapped
+var addon7 = {
+  id: "addon7@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 7",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// The default theme
+var theme1 = {
+  id: "theme1@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 1",
+  internalName: "classic/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// The selected theme
+var theme2 = {
+  id: "theme2@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 2",
+  internalName: "test/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(addon7, profileDir);
+  writeInstallRDFForExtension(theme1, profileDir);
+  writeInstallRDFForExtension(theme2, profileDir);
+
+  // Startup the profile and setup the initial state
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([a2, a3, a4,
+                                                                      a7, t2]) {
+    // Set up the initial state
+    a2.userDisabled = true;
+    a4.userDisabled = true;
+    a7.userDisabled = true;
+    t2.userDisabled = false;
+    a3.findUpdates({
+      onUpdateFinished: function() {
+        a4.findUpdates({
+          onUpdateFinished: function() {
+            do_execute_soon(run_test_1);
+          }
+        }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+      }
+    }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+  });
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+function run_test_1() {
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"],
+                               callback_soon(function([a1, a2, a3, a4, a5, a6, a7, t1, t2]) {
+    do_check_neq(a1, null);
+    do_check_true(a1.isActive);
+    do_check_false(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a2, null);
+    do_check_false(a2.isActive);
+    do_check_true(a2.userDisabled);
+    do_check_false(a2.appDisabled);
+    do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a3, null);
+    do_check_true(a3.isActive);
+    do_check_false(a3.userDisabled);
+    do_check_false(a3.appDisabled);
+    do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a4, null);
+    do_check_false(a4.isActive);
+    do_check_true(a4.userDisabled);
+    do_check_false(a4.appDisabled);
+    do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a5, null);
+    do_check_false(a5.isActive);
+    do_check_false(a5.userDisabled);
+    do_check_true(a5.appDisabled);
+    do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a6, null);
+    do_check_true(a6.isActive);
+    do_check_false(a6.userDisabled);
+    do_check_false(a6.appDisabled);
+    do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(a7, null);
+    do_check_false(a7.isActive);
+    do_check_true(a7.userDisabled);
+    do_check_false(a7.appDisabled);
+    do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(t1, null);
+    do_check_false(t1.isActive);
+    do_check_true(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+    do_check_neq(t2, null);
+    do_check_true(t2.isActive);
+    do_check_false(t2.userDisabled);
+    do_check_false(t2.appDisabled);
+    do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+
+    // Shutdown and replace the database with a corrupt file (a directory
+    // serves this purpose). On startup the add-ons manager won't rebuild
+    // because there is a file there still.
+    shutdownManager();
+    gExtensionsJSON.remove(true);
+    gExtensionsJSON.create(AM_Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+    startupManager(false);
+
+    // Accessing the add-ons should open and recover the database
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon2@tests.mozilla.org",
+                                 "addon3@tests.mozilla.org",
+                                 "addon4@tests.mozilla.org",
+                                 "addon5@tests.mozilla.org",
+                                 "addon6@tests.mozilla.org",
+                                 "addon7@tests.mozilla.org",
+                                 "theme1@tests.mozilla.org",
+                                 "theme2@tests.mozilla.org"],
+                                 callback_soon(function([a1_2, a2_2, a3_2, a4_2, a5_2, a6_2, a7_2, t1_2, t2_2]) {
+      // Should be correctly recovered
+      do_check_neq(a1_2, null);
+      do_check_true(a1_2.isActive);
+      do_check_false(a1_2.userDisabled);
+      do_check_false(a1_2.appDisabled);
+      do_check_eq(a1_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      // Should be correctly recovered
+      do_check_neq(a2_2, null);
+      do_check_false(a2_2.isActive);
+      do_check_true(a2_2.userDisabled);
+      do_check_false(a2_2.appDisabled);
+      do_check_eq(a2_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      // The compatibility update won't be recovered but it should still be
+      // active for this session
+      do_check_neq(a3_2, null);
+      do_check_true(a3_2.isActive);
+      do_check_false(a3_2.userDisabled);
+      do_check_true(a3_2.appDisabled);
+      do_check_eq(a3_2.pendingOperations, AddonManager.PENDING_DISABLE);
+
+      // The compatibility update won't be recovered and it will not have been
+      // able to tell that it was previously userDisabled
+      do_check_neq(a4_2, null);
+      do_check_false(a4_2.isActive);
+      do_check_false(a4_2.userDisabled);
+      do_check_true(a4_2.appDisabled);
+      do_check_eq(a4_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a5_2, null);
+      do_check_false(a5_2.isActive);
+      do_check_false(a5_2.userDisabled);
+      do_check_true(a5_2.appDisabled);
+      do_check_eq(a5_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a6_2, null);
+      do_check_true(a6_2.isActive);
+      do_check_false(a6_2.userDisabled);
+      do_check_false(a6_2.appDisabled);
+      do_check_eq(a6_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      do_check_neq(a7_2, null);
+      do_check_false(a7_2.isActive);
+      do_check_true(a7_2.userDisabled);
+      do_check_false(a7_2.appDisabled);
+      do_check_eq(a7_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      // Should be correctly recovered
+      do_check_neq(t1_2, null);
+      do_check_false(t1_2.isActive);
+      do_check_true(t1_2.userDisabled);
+      do_check_false(t1_2.appDisabled);
+      do_check_eq(t1_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      // Should be correctly recovered
+      do_check_neq(t2_2, null);
+      do_check_true(t2_2.isActive);
+      do_check_false(t2_2.userDisabled);
+      do_check_false(t2_2.appDisabled);
+      do_check_eq(t2_2.pendingOperations, AddonManager.PENDING_NONE);
+
+      Assert.throws(shutdownManager);
+      startupManager(false);
+
+      AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                   "addon2@tests.mozilla.org",
+                                   "addon3@tests.mozilla.org",
+                                   "addon4@tests.mozilla.org",
+                                   "addon5@tests.mozilla.org",
+                                   "addon6@tests.mozilla.org",
+                                   "addon7@tests.mozilla.org",
+                                   "theme1@tests.mozilla.org",
+                                   "theme2@tests.mozilla.org"],
+                                   callback_soon(function([a1_3, a2_3, a3_3, a4_3, a5_3, a6_3, a7_3, t1_3, t2_3]) {
+        do_check_neq(a1_3, null);
+        do_check_true(a1_3.isActive);
+        do_check_false(a1_3.userDisabled);
+        do_check_false(a1_3.appDisabled);
+        do_check_eq(a1_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a2_3, null);
+        do_check_false(a2_3.isActive);
+        do_check_true(a2_3.userDisabled);
+        do_check_false(a2_3.appDisabled);
+        do_check_eq(a2_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a3_3, null);
+        do_check_false(a3_3.isActive);
+        do_check_false(a3_3.userDisabled);
+        do_check_true(a3_3.appDisabled);
+        do_check_eq(a3_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a4_3, null);
+        do_check_false(a4_3.isActive);
+        do_check_false(a4_3.userDisabled);
+        do_check_true(a4_3.appDisabled);
+        do_check_eq(a4_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a5_3, null);
+        do_check_false(a5_3.isActive);
+        do_check_false(a5_3.userDisabled);
+        do_check_true(a5_3.appDisabled);
+        do_check_eq(a5_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a6_3, null);
+        do_check_true(a6_3.isActive);
+        do_check_false(a6_3.userDisabled);
+        do_check_false(a6_3.appDisabled);
+        do_check_eq(a6_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(a7_3, null);
+        do_check_false(a7_3.isActive);
+        do_check_true(a7_3.userDisabled);
+        do_check_false(a7_3.appDisabled);
+        do_check_eq(a7_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(t1_3, null);
+        do_check_false(t1_3.isActive);
+        do_check_true(t1_3.userDisabled);
+        do_check_false(t1_3.appDisabled);
+        do_check_eq(t1_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        do_check_neq(t2_3, null);
+        do_check_true(t2_3.isActive);
+        do_check_false(t2_3.userDisabled);
+        do_check_false(t2_3.appDisabled);
+        do_check_eq(t2_3.pendingOperations, AddonManager.PENDING_NONE);
+
+        Assert.throws(shutdownManager);
+
+        end_test();
+      }));
+    }));
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_corruptfile.js b/toolkit/mozapps/webextensions/test/xpcshell/test_corruptfile.js
new file mode 100644
index 000000000..92b375850
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_corruptfile.js
@@ -0,0 +1,83 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that attempting to install a corrupt XPI file doesn't break the universe
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  startupManager();
+
+  if (TEST_UNPACKED)
+    run_test_unpacked();
+  else
+    run_test_packed();
+}
+
+// When installing packed we won't detect corruption in the XPI until we attempt
+// to load bootstrap.js so everything will look normal from the outside.
+function run_test_packed() {
+  do_test_pending();
+
+  prepare_test({
+    "corrupt@tests.mozilla.org": [
+      ["onInstalling", false],
+      ["onInstalled", false]
+    ]
+  }, [
+    "onNewInstall",
+    "onInstallStarted",
+    "onInstallEnded"
+  ]);
+
+  installAllFiles([do_get_file("data/corruptfile.xpi")], function() {
+    ensure_test_completed();
+
+    AddonManager.getAddonByID("corrupt@tests.mozilla.org", function(addon) {
+      do_check_neq(addon, null);
+
+      do_test_finished();
+    });
+  });
+}
+
+// When extracting the corruption will be detected and the add-on fails to
+// install
+function run_test_unpacked() {
+  do_test_pending();
+
+  prepare_test({
+    "corrupt@tests.mozilla.org": [
+      ["onInstalling", false],
+      "onOperationCancelled"
+    ]
+  }, [
+    "onNewInstall",
+    "onInstallStarted",
+    "onInstallFailed"
+  ]);
+
+  installAllFiles([do_get_file("data/corruptfile.xpi")], function() {
+    ensure_test_completed();
+
+    // Check the add-on directory isn't left over
+    var addonDir = profileDir.clone();
+    addonDir.append("corrupt@tests.mozilla.org");
+    pathShouldntExist(addonDir);
+
+    // Check the staging directory isn't left over
+    var stageDir = profileDir.clone();
+    stageDir.append("staged");
+    pathShouldntExist(stageDir);
+
+    AddonManager.getAddonByID("corrupt@tests.mozilla.org", function(addon) {
+      do_check_eq(addon, null);
+
+      do_test_finished();
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_dataDirectory.js b/toolkit/mozapps/webextensions/test/xpcshell/test_dataDirectory.js
new file mode 100644
index 000000000..bf75818e9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_dataDirectory.js
@@ -0,0 +1,50 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// Disables security checking our updates which haven't been signed
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+var ADDON = {
+  id: "datadirectory1@tests.mozilla.org",
+  addon: "test_data_directory"
+};
+
+function run_test() {
+    var expectedDir = gProfD.clone();
+    expectedDir.append("extension-data");
+    expectedDir.append(ADDON.id);
+
+    do_test_pending();
+    do_check_false(expectedDir.exists());
+
+    createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "1.9");
+    startupManager();
+
+    installAllFiles([do_get_addon(ADDON.addon)], function() {
+        restartManager();
+
+        AddonManager.getAddonByID(ADDON.id, function(item) {
+            item.getDataDirectory(promise_callback);
+        });
+    });
+}
+
+function promise_callback() {
+    do_check_eq(arguments.length, 2);
+    var expectedDir = gProfD.clone();
+    expectedDir.append("extension-data");
+    expectedDir.append(ADDON.id);
+
+    do_check_eq(arguments[0], expectedDir.path);
+    do_check_true(expectedDir.exists());
+    do_check_true(expectedDir.isDirectory());
+
+    do_check_eq(arguments[1], null);
+
+    // Cleanup.
+    expectedDir.parent.remove(true);
+
+    do_test_finished();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_default_providers_pref.js b/toolkit/mozapps/webextensions/test/xpcshell/test_default_providers_pref.js
new file mode 100644
index 000000000..1b61e033a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_default_providers_pref.js
@@ -0,0 +1,13 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests the extensions.defaultProviders.enabled pref which turns
+// off the default XPIProvider and LightweightThemeManager.
+
+function run_test() {
+  Services.prefs.setBoolPref("extensions.defaultProviders.enabled", false);
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+  do_check_false(AddonManager.isInstallEnabled("application/x-xpinstall"));
+  Services.prefs.clearUserPref("extensions.defaultProviders.enabled");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_delay_update.js b/toolkit/mozapps/webextensions/test/xpcshell/test_delay_update.js
new file mode 100644
index 000000000..3d7eef051
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_delay_update.js
@@ -0,0 +1,260 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that delaying an update works
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+Components.utils.import("resource://testing-common/httpd.js");
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+const tempdir = gTmpD.clone();
+
+const IGNORE_ID = "test_delay_update_ignore@tests.mozilla.org";
+const COMPLETE_ID = "test_delay_update_complete@tests.mozilla.org";
+const DEFER_ID = "test_delay_update_defer@tests.mozilla.org";
+
+const TEST_IGNORE_PREF = "delaytest.ignore";
+
+// Note that we would normally use BootstrapMonitor but it currently requires
+// the objects in `data` to be serializable, and we need a real reference to the
+// `instanceID` symbol to test.
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+
+// Create and configure the HTTP server.
+let testserver = createHttpServer();
+gPort = testserver.identity.primaryPort;
+mapFile("/data/test_delay_updates_complete.rdf", testserver);
+mapFile("/data/test_delay_updates_ignore.rdf", testserver);
+mapFile("/data/test_delay_updates_defer.rdf", testserver);
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+function* createIgnoreAddon() {
+  writeInstallRDFToDir({
+    id: IGNORE_ID,
+    version: "1.0",
+    bootstrap: true,
+    unpack: true,
+    updateURL: `http://localhost:${gPort}/data/test_delay_updates_ignore.rdf`,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Delay Update Ignore",
+  }, profileDir, IGNORE_ID, "bootstrap.js");
+
+  let unpacked_addon = profileDir.clone();
+  unpacked_addon.append(IGNORE_ID);
+  do_get_file("data/test_delay_update_ignore/bootstrap.js")
+    .copyTo(unpacked_addon, "bootstrap.js");
+}
+
+function* createCompleteAddon() {
+  writeInstallRDFToDir({
+    id: COMPLETE_ID,
+    version: "1.0",
+    bootstrap: true,
+    unpack: true,
+    updateURL: `http://localhost:${gPort}/data/test_delay_updates_complete.rdf`,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Delay Update Complete",
+  }, profileDir, COMPLETE_ID, "bootstrap.js");
+
+  let unpacked_addon = profileDir.clone();
+  unpacked_addon.append(COMPLETE_ID);
+  do_get_file("data/test_delay_update_complete/bootstrap.js")
+    .copyTo(unpacked_addon, "bootstrap.js");
+}
+
+function* createDeferAddon() {
+  writeInstallRDFToDir({
+    id: DEFER_ID,
+    version: "1.0",
+    bootstrap: true,
+    unpack: true,
+    updateURL: `http://localhost:${gPort}/data/test_delay_updates_defer.rdf`,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Delay Update Defer",
+  }, profileDir, DEFER_ID, "bootstrap.js");
+
+  let unpacked_addon = profileDir.clone();
+  unpacked_addon.append(DEFER_ID);
+  do_get_file("data/test_delay_update_defer/bootstrap.js")
+    .copyTo(unpacked_addon, "bootstrap.js");
+}
+
+// add-on registers upgrade listener, and ignores update.
+add_task(function*() {
+
+  yield createIgnoreAddon();
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(IGNORE_ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Delay Update Ignore");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  let update = yield promiseFindAddonUpdates(addon);
+  let install = update.updateAvailable;
+
+  yield promiseCompleteAllInstalls([install]);
+
+  do_check_eq(install.state, AddonManager.STATE_POSTPONED);
+
+  // addon upgrade has been delayed
+  let addon_postponed = yield promiseAddonByID(IGNORE_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "Test Delay Update Ignore");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+  do_check_true(Services.prefs.getBoolPref(TEST_IGNORE_PREF));
+
+  // restarting allows upgrade to proceed
+  yield promiseRestartManager();
+
+  let addon_upgraded = yield promiseAddonByID(IGNORE_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "Test Delay Update Ignore");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  yield shutdownManager();
+});
+
+// add-on registers upgrade listener, and allows update.
+add_task(function*() {
+
+  yield createCompleteAddon();
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(COMPLETE_ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Delay Update Complete");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  let update = yield promiseFindAddonUpdates(addon);
+  let install = update.updateAvailable;
+
+  yield promiseCompleteAllInstalls([install]);
+
+  // upgrade is initially postponed
+  let addon_postponed = yield promiseAddonByID(COMPLETE_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "Test Delay Update Complete");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  // addon upgrade has been allowed
+  let [addon_allowed] = yield promiseAddonEvent("onInstalled");
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "Test Delay Update Complete");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  // restarting changes nothing
+  yield promiseRestartManager();
+
+  let addon_upgraded = yield promiseAddonByID(COMPLETE_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "Test Delay Update Complete");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  yield shutdownManager();
+});
+
+// add-on registers upgrade listener, initially defers update then allows upgrade
+add_task(function*() {
+
+  yield createDeferAddon();
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Delay Update Defer");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  let update = yield promiseFindAddonUpdates(addon);
+  let install = update.updateAvailable;
+
+  yield promiseCompleteAllInstalls([install]);
+
+  // upgrade is initially postponed
+  let addon_postponed = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "Test Delay Update Defer");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  // add-on will not allow upgrade until fake event fires
+  AddonManagerPrivate.callAddonListeners("onFakeEvent");
+
+  // addon upgrade has been allowed
+  let [addon_allowed] = yield promiseAddonEvent("onInstalled");
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "Test Delay Update Defer");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  // restarting changes nothing
+  yield promiseRestartManager();
+
+  let addon_upgraded = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "Test Delay Update Defer");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  yield shutdownManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_delay_update_webextension.js b/toolkit/mozapps/webextensions/test/xpcshell/test_delay_update_webextension.js
new file mode 100644
index 000000000..cdfac8f8c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_delay_update_webextension.js
@@ -0,0 +1,344 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that delaying an update works for WebExtensions.
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+/* globals browser*/
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+const tempdir = gTmpD.clone();
+const stageDir = profileDir.clone();
+stageDir.append("staged");
+
+const IGNORE_ID = "test_delay_update_ignore_webext@tests.mozilla.org";
+const COMPLETE_ID = "test_delay_update_complete_webext@tests.mozilla.org";
+const DEFER_ID = "test_delay_update_defer_webext@tests.mozilla.org";
+const NOUPDATE_ID = "test_no_update_webext@tests.mozilla.org";
+
+// Create and configure the HTTP server.
+let testserver = createHttpServer();
+gPort = testserver.identity.primaryPort;
+mapFile("/data/test_delay_updates_complete.json", testserver);
+mapFile("/data/test_delay_updates_ignore.json", testserver);
+mapFile("/data/test_delay_updates_defer.json", testserver);
+mapFile("/data/test_no_update.json", testserver);
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+
+const { Management } = Components.utils.import("resource://gre/modules/Extension.jsm", {});
+
+function promiseWebExtensionStartup() {
+  return new Promise(resolve => {
+    let listener = (event, extension) => {
+      Management.off("startup", listener);
+      resolve(extension);
+    };
+
+    Management.on("startup", listener);
+  });
+}
+
+// add-on registers upgrade listener, and ignores update.
+add_task(function* delay_updates_ignore() {
+  startupManager();
+
+  let extension = ExtensionTestUtils.loadExtension({
+    useAddonManager: "permanent",
+    manifest: {
+      "version": "1.0",
+      "applications": {
+        "gecko": {
+          "id": IGNORE_ID,
+          "update_url": `http://localhost:${gPort}/data/test_delay_updates_ignore.json`,
+        },
+      },
+    },
+    background() {
+      browser.runtime.onUpdateAvailable.addListener(details => {
+        if (details) {
+          if (details.version) {
+            // This should be the version of the pending update.
+            browser.test.assertEq("2.0", details.version, "correct version");
+            browser.test.notifyPass("delay");
+          }
+        } else {
+          browser.test.fail("no details object passed");
+        }
+      });
+      browser.test.sendMessage("ready");
+    },
+  }, IGNORE_ID);
+
+  yield Promise.all([extension.startup(), extension.awaitMessage("ready")]);
+
+  let addon = yield promiseAddonByID(IGNORE_ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Generated extension");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  let update = yield promiseFindAddonUpdates(addon);
+  let install = update.updateAvailable;
+
+  yield promiseCompleteAllInstalls([install]);
+
+  do_check_eq(install.state, AddonManager.STATE_POSTPONED);
+
+  // addon upgrade has been delayed
+  let addon_postponed = yield promiseAddonByID(IGNORE_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "Generated extension");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  yield extension.awaitFinish("delay");
+
+  // restarting allows upgrade to proceed
+  yield extension.markUnloaded();
+  yield promiseRestartManager();
+
+  let addon_upgraded = yield promiseAddonByID(IGNORE_ID);
+  yield promiseWebExtensionStartup();
+
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "Delay Upgrade");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  yield addon_upgraded.uninstall();
+  yield promiseShutdownManager();
+});
+
+// add-on registers upgrade listener, and allows update.
+add_task(function* delay_updates_complete() {
+  startupManager();
+
+  let extension = ExtensionTestUtils.loadExtension({
+    useAddonManager: "permanent",
+    manifest: {
+      "version": "1.0",
+      "applications": {
+        "gecko": {
+          "id": COMPLETE_ID,
+          "update_url": `http://localhost:${gPort}/data/test_delay_updates_complete.json`,
+        },
+      },
+    },
+    background() {
+      browser.runtime.onUpdateAvailable.addListener(details => {
+        browser.test.notifyPass("reload");
+        browser.runtime.reload();
+      });
+      browser.test.sendMessage("ready");
+    },
+  }, COMPLETE_ID);
+
+  yield Promise.all([extension.startup(), extension.awaitMessage("ready")]);
+
+  let addon = yield promiseAddonByID(COMPLETE_ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Generated extension");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  let update = yield promiseFindAddonUpdates(addon);
+  let install = update.updateAvailable;
+
+  let promiseInstalled = promiseAddonEvent("onInstalled");
+  yield promiseCompleteAllInstalls([install]);
+
+  yield extension.awaitFinish("reload");
+
+  // addon upgrade has been allowed
+  let [addon_allowed] = yield promiseInstalled;
+  yield promiseWebExtensionStartup();
+
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "Delay Upgrade");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  if (stageDir.exists()) {
+    do_throw("Staging directory should not exist for formerly-postponed extension");
+  }
+
+  yield extension.markUnloaded();
+  yield addon_allowed.uninstall();
+  yield promiseShutdownManager();
+});
+
+// add-on registers upgrade listener, initially defers update then allows upgrade
+add_task(function* delay_updates_defer() {
+  startupManager();
+
+  let extension = ExtensionTestUtils.loadExtension({
+    useAddonManager: "permanent",
+    manifest: {
+      "version": "1.0",
+      "applications": {
+        "gecko": {
+          "id": DEFER_ID,
+          "update_url": `http://localhost:${gPort}/data/test_delay_updates_defer.json`,
+        },
+      },
+    },
+    background() {
+      browser.runtime.onUpdateAvailable.addListener(details => {
+        // Upgrade will only proceed when "allow" message received.
+        browser.test.onMessage.addListener(msg => {
+          if (msg == "allow") {
+            browser.test.notifyPass("allowed");
+            browser.runtime.reload();
+          } else {
+            browser.test.fail(`wrong message: ${msg}`);
+          }
+        });
+        browser.test.sendMessage("truly ready");
+      });
+      browser.test.sendMessage("ready");
+    },
+  }, DEFER_ID);
+
+  yield Promise.all([extension.startup(), extension.awaitMessage("ready")]);
+
+  let addon = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Generated extension");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  let update = yield promiseFindAddonUpdates(addon);
+  let install = update.updateAvailable;
+
+  let promiseInstalled = promiseAddonEvent("onInstalled");
+  yield promiseCompleteAllInstalls([install]);
+
+  do_check_eq(install.state, AddonManager.STATE_POSTPONED);
+
+  // upgrade is initially postponed
+  let addon_postponed = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "Generated extension");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  // add-on will not allow upgrade until message is received
+  yield extension.awaitMessage("truly ready");
+  extension.sendMessage("allow");
+  yield extension.awaitFinish("allowed");
+
+  // addon upgrade has been allowed
+  let [addon_allowed] = yield promiseInstalled;
+  yield promiseWebExtensionStartup();
+
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "Delay Upgrade");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  yield extension.markUnloaded();
+  yield promiseRestartManager();
+
+  // restart changes nothing
+  addon_allowed = yield promiseAddonByID(DEFER_ID);
+  yield promiseWebExtensionStartup();
+
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "Delay Upgrade");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  yield addon_allowed.uninstall();
+  yield promiseShutdownManager();
+});
+
+// browser.runtime.reload() without a pending upgrade should just reload.
+add_task(function* runtime_reload() {
+  startupManager();
+
+  let extension = ExtensionTestUtils.loadExtension({
+    useAddonManager: "permanent",
+    manifest: {
+      "version": "1.0",
+      "applications": {
+        "gecko": {
+          "id": NOUPDATE_ID,
+          "update_url": `http://localhost:${gPort}/data/test_no_update.json`,
+        },
+      },
+    },
+    background() {
+      browser.test.onMessage.addListener(msg => {
+        if (msg == "reload") {
+          browser.runtime.reload();
+        } else {
+          browser.test.fail(`wrong message: ${msg}`);
+        }
+      });
+      browser.test.sendMessage("ready");
+    },
+  }, NOUPDATE_ID);
+
+  yield Promise.all([extension.startup(), extension.awaitMessage("ready")]);
+
+  let addon = yield promiseAddonByID(NOUPDATE_ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Generated extension");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  yield promiseFindAddonUpdates(addon);
+
+  extension.sendMessage("reload");
+  // Wait for extension to restart, to make sure reload works.
+  yield promiseWebExtensionStartup();
+
+  addon = yield promiseAddonByID(NOUPDATE_ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Generated extension");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  yield extension.markUnloaded();
+  yield addon.uninstall();
+  yield promiseShutdownManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_dependencies.js b/toolkit/mozapps/webextensions/test/xpcshell/test_dependencies.js
new file mode 100644
index 000000000..3afc03f84
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_dependencies.js
@@ -0,0 +1,144 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+startupManager();
+
+const BOOTSTRAP = String.raw`
+  Components.utils.import("resource://gre/modules/Services.jsm");
+
+  function startup(data) {
+    Services.obs.notifyObservers(null, "test-addon-bootstrap-startup", data.id);
+  }
+  function shutdown(data) {
+    Services.obs.notifyObservers(null, "test-addon-bootstrap-shutdown", data.id);
+  }
+  function install() {}
+  function uninstall() {}
+`;
+
+const ADDONS = [
+  {
+    id: "addon1@dependency-test.mozilla.org",
+    dependencies: ["addon2@dependency-test.mozilla.org"],
+  },
+  {
+    id: "addon2@dependency-test.mozilla.org",
+    dependencies: ["addon3@dependency-test.mozilla.org"],
+  },
+  {
+    id: "addon3@dependency-test.mozilla.org",
+  },
+  {
+    id: "addon4@dependency-test.mozilla.org",
+  },
+  {
+    id: "addon5@dependency-test.mozilla.org",
+    dependencies: ["addon2@dependency-test.mozilla.org"],
+  },
+];
+
+let addonFiles = [];
+
+let events = [];
+add_task(function* setup() {
+  let startupObserver = (subject, topic, data) => {
+    events.push(["startup", data]);
+  };
+  let shutdownObserver = (subject, topic, data) => {
+    events.push(["shutdown", data]);
+  };
+
+  Services.obs.addObserver(startupObserver, "test-addon-bootstrap-startup", false);
+  Services.obs.addObserver(shutdownObserver, "test-addon-bootstrap-shutdown", false);
+  do_register_cleanup(() => {
+    Services.obs.removeObserver(startupObserver, "test-addon-bootstrap-startup");
+    Services.obs.removeObserver(shutdownObserver, "test-addon-bootstrap-shutdown");
+  });
+
+  for (let addon of ADDONS) {
+    Object.assign(addon, {
+      targetApplications: [{
+        id: "xpcshell@tests.mozilla.org",
+        minVersion: "1",
+        maxVersion: "1",
+      }],
+      version: "1.0",
+      name: addon.id,
+      bootstrap: true,
+    });
+
+    addonFiles.push(createTempXPIFile(addon, {"bootstrap.js": BOOTSTRAP}));
+  }
+});
+
+add_task(function*() {
+  deepEqual(events, [], "Should have no events");
+
+  yield promiseInstallAllFiles([addonFiles[3]]);
+
+  deepEqual(events, [
+    ["startup", ADDONS[3].id],
+  ]);
+
+  events.length = 0;
+
+  yield promiseInstallAllFiles([addonFiles[0]]);
+  deepEqual(events, [], "Should have no events");
+
+  yield promiseInstallAllFiles([addonFiles[1]]);
+  deepEqual(events, [], "Should have no events");
+
+  yield promiseInstallAllFiles([addonFiles[2]]);
+
+  deepEqual(events, [
+    ["startup", ADDONS[2].id],
+    ["startup", ADDONS[1].id],
+    ["startup", ADDONS[0].id],
+  ]);
+
+  events.length = 0;
+
+  yield promiseInstallAllFiles([addonFiles[2]]);
+
+  deepEqual(events, [
+    ["shutdown", ADDONS[0].id],
+    ["shutdown", ADDONS[1].id],
+    ["shutdown", ADDONS[2].id],
+
+    ["startup", ADDONS[2].id],
+    ["startup", ADDONS[1].id],
+    ["startup", ADDONS[0].id],
+  ]);
+
+  events.length = 0;
+
+  yield promiseInstallAllFiles([addonFiles[4]]);
+
+  deepEqual(events, [
+    ["startup", ADDONS[4].id],
+  ]);
+
+  events.length = 0;
+
+  yield promiseRestartManager();
+
+  deepEqual(events, [
+    ["shutdown", ADDONS[4].id],
+    ["shutdown", ADDONS[3].id],
+    ["shutdown", ADDONS[0].id],
+    ["shutdown", ADDONS[1].id],
+    ["shutdown", ADDONS[2].id],
+
+    ["startup", ADDONS[2].id],
+    ["startup", ADDONS[1].id],
+    ["startup", ADDONS[0].id],
+    ["startup", ADDONS[3].id],
+    ["startup", ADDONS[4].id],
+  ]);
+});
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_dictionary.js b/toolkit/mozapps/webextensions/test/xpcshell/test_dictionary.js
new file mode 100644
index 000000000..f4b6a0535
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_dictionary.js
@@ -0,0 +1,811 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that bootstrappable add-ons can be used without restarts.
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+// Enable loading extensions from the user scopes
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_USER);
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+const userExtDir = gProfD.clone();
+userExtDir.append("extensions2");
+userExtDir.append(gAppInfo.ID);
+registerDirectory("XREUSysExt", userExtDir.parent);
+
+Components.utils.import("resource://testing-common/httpd.js");
+// Create and configure the HTTP server.
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+// register files with server
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+mapFile("/data/test_dictionary.rdf", testserver);
+
+/**
+ * This object is both a factory and an mozISpellCheckingEngine implementation (so, it
+ * is de-facto a service). It's also an interface requestor that gives out
+ * itself when asked for mozISpellCheckingEngine.
+ */
+var HunspellEngine = {
+  dictionaryDirs: [],
+  listener: null,
+
+  QueryInterface: function hunspell_qi(iid) {
+    if (iid.equals(Components.interfaces.nsISupports) ||
+        iid.equals(Components.interfaces.nsIFactory) ||
+        iid.equals(Components.interfaces.mozISpellCheckingEngine))
+      return this;
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  },
+  createInstance: function hunspell_ci(outer, iid) {
+    if (outer)
+      throw Components.results.NS_ERROR_NO_AGGREGATION;
+    return this.QueryInterface(iid);
+  },
+  lockFactory: function hunspell_lockf(lock) {
+    throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
+  },
+
+  addDirectory: function hunspell_addDirectory(dir) {
+    this.dictionaryDirs.push(dir);
+    if (this.listener)
+      this.listener("addDirectory");
+  },
+
+  removeDirectory: function hunspell_addDirectory(dir) {
+    this.dictionaryDirs.splice(this.dictionaryDirs.indexOf(dir), 1);
+    if (this.listener)
+      this.listener("removeDirectory");
+  },
+
+  getInterface: function hunspell_gi(iid) {
+    if (iid.equals(Components.interfaces.mozISpellCheckingEngine))
+      return this;
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  },
+
+  contractID: "@mozilla.org/spellchecker/engine;1",
+  classID: Components.ID("{6f3c63bc-a4fd-449b-9a58-a2d9bd972cce}"),
+
+  activate: function hunspell_activate() {
+    this.origClassID = Components.manager.nsIComponentRegistrar
+      .contractIDToCID(this.contractID);
+    this.origFactory = Components.manager
+      .getClassObject(Components.classes[this.contractID],
+                      Components.interfaces.nsIFactory);
+
+    Components.manager.nsIComponentRegistrar
+      .unregisterFactory(this.origClassID, this.origFactory);
+    Components.manager.nsIComponentRegistrar.registerFactory(this.classID,
+      "Test hunspell", this.contractID, this);
+  },
+
+  deactivate: function hunspell_deactivate() {
+    Components.manager.nsIComponentRegistrar.unregisterFactory(this.classID, this);
+    Components.manager.nsIComponentRegistrar.registerFactory(this.origClassID,
+      "Hunspell", this.contractID, this.origFactory);
+  },
+
+  isDictionaryEnabled: function hunspell_isDictionaryEnabled(name) {
+    return this.dictionaryDirs.some(function(dir) {
+      var dic = dir.clone();
+      dic.append(name);
+      return dic.exists();
+    });
+  }
+};
+
+function run_test() {
+  do_test_pending();
+
+  startupManager();
+
+  run_test_1();
+}
+
+// Tests that installing doesn't require a restart
+function run_test_1() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  HunspellEngine.activate();
+
+  AddonManager.getInstallForFile(do_get_addon("test_dictionary"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.type, "dictionary");
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Test Dictionary");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(install.addon.hasResource("install.rdf"));
+    do_check_false(install.addon.hasResource("bootstrap.js"));
+    do_check_eq(install.addon.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_INSTALL, 0);
+    do_check_not_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+    let addon = install.addon;
+    prepare_test({
+      "ab-CD@dictionaries.addons.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], function() {
+      do_check_true(addon.hasResource("install.rdf"));
+      HunspellEngine.listener = function(aEvent) {
+        HunspellEngine.listener = null;
+        do_check_eq(aEvent, "addDirectory");
+        do_execute_soon(check_test_1);
+      };
+    });
+    install.install();
+  });
+}
+
+function check_test_1() {
+  AddonManager.getAllInstalls(function(installs) {
+    // There should be no active installs now since the install completed and
+    // doesn't require a restart.
+    do_check_eq(installs.length, 0);
+
+    AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "1.0");
+      do_check_false(b1.appDisabled);
+      do_check_false(b1.userDisabled);
+      do_check_true(b1.isActive);
+      do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+      do_check_true(b1.hasResource("install.rdf"));
+      do_check_false(b1.hasResource("bootstrap.js"));
+      do_check_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+      let dir = do_get_addon_root_uri(profileDir, "ab-CD@dictionaries.addons.mozilla.org");
+
+      let chromeReg = AM_Cc["@mozilla.org/chrome/chrome-registry;1"].
+                      getService(AM_Ci.nsIChromeRegistry);
+      try {
+        chromeReg.convertChromeURL(NetUtil.newURI("chrome://dict/content/dict.xul"));
+        do_throw("Chrome manifest should not have been registered");
+      }
+      catch (e) {
+        // Expected the chrome url to not be registered
+      }
+
+      AddonManager.getAddonsWithOperationsByTypes(null, function(list) {
+        do_check_eq(list.length, 0);
+
+        run_test_2();
+      });
+    });
+  });
+}
+
+// Tests that disabling doesn't require a restart
+function run_test_2() {
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+    prepare_test({
+      "ab-CD@dictionaries.addons.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ]
+    });
+
+    do_check_eq(b1.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_DISABLE, 0);
+    b1.userDisabled = true;
+    ensure_test_completed();
+
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_true(b1.userDisabled);
+    do_check_false(b1.isActive);
+    do_check_false(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+    do_check_not_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+    AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(newb1) {
+      do_check_neq(newb1, null);
+      do_check_eq(newb1.version, "1.0");
+      do_check_false(newb1.appDisabled);
+      do_check_true(newb1.userDisabled);
+      do_check_false(newb1.isActive);
+
+      do_execute_soon(run_test_3);
+    });
+  });
+}
+
+// Test that restarting doesn't accidentally re-enable
+function run_test_3() {
+  shutdownManager();
+  do_check_false(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+  startupManager(false);
+  do_check_false(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+  do_check_not_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_true(b1.userDisabled);
+    do_check_false(b1.isActive);
+
+    run_test_4();
+  });
+}
+
+// Tests that enabling doesn't require a restart
+function run_test_4() {
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+    prepare_test({
+      "ab-CD@dictionaries.addons.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ]
+    });
+
+    do_check_eq(b1.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_ENABLE, 0);
+    b1.userDisabled = false;
+    ensure_test_completed();
+
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+    do_check_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+    AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(newb1) {
+      do_check_neq(newb1, null);
+      do_check_eq(newb1.version, "1.0");
+      do_check_false(newb1.appDisabled);
+      do_check_false(newb1.userDisabled);
+      do_check_true(newb1.isActive);
+
+      do_execute_soon(run_test_5);
+    });
+  });
+}
+
+// Tests that a restart shuts down and restarts the add-on
+function run_test_5() {
+  shutdownManager();
+  do_check_false(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+  do_check_not_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+  startupManager(false);
+  do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+  do_check_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, b1.id));
+
+    run_test_7();
+  });
+}
+
+// Tests that uninstalling doesn't require a restart
+function run_test_7() {
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+    prepare_test({
+      "ab-CD@dictionaries.addons.mozilla.org": [
+        ["onUninstalling", false],
+        "onUninstalled"
+      ]
+    });
+
+    do_check_eq(b1.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_UNINSTALL, 0);
+    b1.uninstall();
+
+    check_test_7();
+  });
+}
+
+function check_test_7() {
+  ensure_test_completed();
+  do_check_false(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+  do_check_not_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org",
+   callback_soon(function(b1) {
+    do_check_eq(b1, null);
+
+    restartManager();
+
+    AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(newb1) {
+      do_check_eq(newb1, null);
+
+      do_execute_soon(run_test_8);
+    });
+  }));
+}
+
+// Test that a bootstrapped extension dropped into the profile loads properly
+// on startup and doesn't cause an EM restart
+function run_test_8() {
+  shutdownManager();
+
+  let dir = profileDir.clone();
+  dir.append("ab-CD@dictionaries.addons.mozilla.org");
+  dir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+  let zip = AM_Cc["@mozilla.org/libjar/zip-reader;1"].
+            createInstance(AM_Ci.nsIZipReader);
+  zip.open(do_get_addon("test_dictionary"));
+  dir.append("install.rdf");
+  zip.extract("install.rdf", dir);
+  dir = dir.parent;
+  dir.append("dictionaries");
+  dir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+  dir.append("ab-CD.dic");
+  zip.extract("dictionaries/ab-CD.dic", dir);
+  zip.close();
+
+  startupManager(false);
+
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+    do_check_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+    do_execute_soon(run_test_9);
+  });
+}
+
+// Test that items detected as removed during startup get removed properly
+function run_test_9() {
+  shutdownManager();
+
+  let dir = profileDir.clone();
+  dir.append("ab-CD@dictionaries.addons.mozilla.org");
+  dir.remove(true);
+  startupManager(false);
+
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+    do_check_eq(b1, null);
+    do_check_not_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+    do_execute_soon(run_test_12);
+  });
+}
+
+
+// Tests that bootstrapped extensions are correctly loaded even if the app is
+// upgraded at the same time
+function run_test_12() {
+  shutdownManager();
+
+  let dir = profileDir.clone();
+  dir.append("ab-CD@dictionaries.addons.mozilla.org");
+  dir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+  let zip = AM_Cc["@mozilla.org/libjar/zip-reader;1"].
+            createInstance(AM_Ci.nsIZipReader);
+  zip.open(do_get_addon("test_dictionary"));
+  dir.append("install.rdf");
+  zip.extract("install.rdf", dir);
+  dir = dir.parent;
+  dir.append("dictionaries");
+  dir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+  dir.append("ab-CD.dic");
+  zip.extract("dictionaries/ab-CD.dic", dir);
+  zip.close();
+
+  startupManager(true);
+
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+    do_check_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+    b1.uninstall();
+    do_execute_soon(run_test_16);
+  });
+}
+
+
+// Tests that bootstrapped extensions don't get loaded when in safe mode
+function run_test_16() {
+  restartManager();
+
+  installAllFiles([do_get_addon("test_dictionary")], function() {
+    // spin the event loop to let the addon finish starting
+   do_execute_soon(function check_installed_dictionary() {
+    AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org",
+     callback_soon(function(b1) {
+      // Should have installed and started
+      do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+
+      shutdownManager();
+
+      // Should have stopped
+      do_check_false(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+
+      gAppInfo.inSafeMode = true;
+      startupManager(false);
+
+      AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org",
+       callback_soon(function(b1_2) {
+        // Should still be stopped
+        do_check_false(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+        do_check_false(b1_2.isActive);
+
+        shutdownManager();
+        gAppInfo.inSafeMode = false;
+        startupManager(false);
+
+        // Should have started
+        do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+
+        AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1_3) {
+          b1_3.uninstall();
+
+          do_execute_soon(run_test_17);
+        });
+      }));
+    }));
+   });
+  });
+}
+
+// Check that a bootstrapped extension in a non-profile location is loaded
+function run_test_17() {
+  shutdownManager();
+
+  let dir = userExtDir.clone();
+  dir.append("ab-CD@dictionaries.addons.mozilla.org");
+  dir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+  let zip = AM_Cc["@mozilla.org/libjar/zip-reader;1"].
+            createInstance(AM_Ci.nsIZipReader);
+  zip.open(do_get_addon("test_dictionary"));
+  dir.append("install.rdf");
+  zip.extract("install.rdf", dir);
+  dir = dir.parent;
+  dir.append("dictionaries");
+  dir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+  dir.append("ab-CD.dic");
+  zip.extract("dictionaries/ab-CD.dic", dir);
+  zip.close();
+
+  startupManager();
+
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org",
+   callback_soon(function(b1) {
+    // Should have installed and started
+    do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_true(b1.isActive);
+
+    // From run_test_21
+    dir = userExtDir.clone();
+    dir.append("ab-CD@dictionaries.addons.mozilla.org");
+    dir.remove(true);
+
+    restartManager();
+
+    run_test_23();
+  }));
+}
+
+// Tests that installing from a URL doesn't require a restart
+function run_test_23() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_dictionary.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+
+    prepare_test({ }, [
+      "onDownloadStarted",
+      "onDownloadEnded"
+    ], function() {
+      do_check_eq(install.type, "dictionary");
+      do_check_eq(install.version, "1.0");
+      do_check_eq(install.name, "Test Dictionary");
+      do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+      do_check_true(install.addon.hasResource("install.rdf"));
+      do_check_false(install.addon.hasResource("bootstrap.js"));
+      do_check_eq(install.addon.operationsRequiringRestart &
+                  AddonManager.OP_NEEDS_RESTART_INSTALL, 0);
+      do_check_not_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+      let addon = install.addon;
+      prepare_test({
+        "ab-CD@dictionaries.addons.mozilla.org": [
+          ["onInstalling", false],
+          "onInstalled"
+        ]
+      }, [
+        "onInstallStarted",
+        "onInstallEnded",
+      ], function() {
+        do_check_true(addon.hasResource("install.rdf"));
+        // spin to let the addon startup finish
+        do_execute_soon(check_test_23);
+      });
+    });
+    install.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_23() {
+  AddonManager.getAllInstalls(function(installs) {
+    // There should be no active installs now since the install completed and
+    // doesn't require a restart.
+    do_check_eq(installs.length, 0);
+
+    AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "1.0");
+      do_check_false(b1.appDisabled);
+      do_check_false(b1.userDisabled);
+      do_check_true(b1.isActive);
+      do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+      do_check_true(b1.hasResource("install.rdf"));
+      do_check_false(b1.hasResource("bootstrap.js"));
+      do_check_in_crash_annotation("ab-CD@dictionaries.addons.mozilla.org", "1.0");
+
+      let dir = do_get_addon_root_uri(profileDir, "ab-CD@dictionaries.addons.mozilla.org");
+
+      AddonManager.getAddonsWithOperationsByTypes(null, callback_soon(function(list) {
+        do_check_eq(list.length, 0);
+
+        restartManager();
+        AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1_2) {
+          b1_2.uninstall();
+          do_execute_soon(run_test_25);
+        });
+      }));
+    });
+  });
+}
+
+// Tests that updating from a bootstrappable add-on to a normal add-on calls
+// the uninstall method
+function run_test_25() {
+  restartManager();
+
+  HunspellEngine.listener = function(aEvent) {
+    HunspellEngine.listener = null;
+    do_check_eq(aEvent, "addDirectory");
+    do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+
+    installAllFiles([do_get_addon("test_dictionary_2")], function test_25_installed2() {
+      // Needs a restart to complete this so the old version stays running
+      do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+
+      AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org",
+       callback_soon(function(b1) {
+        do_check_neq(b1, null);
+        do_check_eq(b1.version, "1.0");
+        do_check_true(b1.isActive);
+        do_check_true(hasFlag(b1.pendingOperations, AddonManager.PENDING_UPGRADE));
+
+        restartManager();
+
+        do_check_false(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+
+        AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1_2) {
+          do_check_neq(b1_2, null);
+          do_check_eq(b1_2.version, "2.0");
+          do_check_true(b1_2.isActive);
+          do_check_eq(b1_2.pendingOperations, AddonManager.PENDING_NONE);
+
+          do_execute_soon(run_test_26);
+        });
+      }));
+    });
+  };
+
+  installAllFiles([do_get_addon("test_dictionary")], function test_25_installed() { });
+}
+
+// Tests that updating from a normal add-on to a bootstrappable add-on calls
+// the install method
+function run_test_26() {
+  installAllFiles([do_get_addon("test_dictionary")], function test_26_install() {
+    // Needs a restart to complete this
+    do_check_false(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+
+    AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org",
+     callback_soon(function(b1) {
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "2.0");
+      do_check_true(b1.isActive);
+      do_check_true(hasFlag(b1.pendingOperations, AddonManager.PENDING_UPGRADE));
+
+      restartManager();
+
+      do_check_true(HunspellEngine.isDictionaryEnabled("ab-CD.dic"));
+
+      AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1_2) {
+        do_check_neq(b1_2, null);
+        do_check_eq(b1_2.version, "1.0");
+        do_check_true(b1_2.isActive);
+        do_check_eq(b1_2.pendingOperations, AddonManager.PENDING_NONE);
+
+        HunspellEngine.deactivate();
+        b1_2.uninstall();
+        do_execute_soon(run_test_27);
+      });
+    }));
+  });
+}
+
+// Tests that an update check from a normal add-on to a bootstrappable add-on works
+function run_test_27() {
+  restartManager();
+  writeInstallRDFForExtension({
+    id: "ab-CD@dictionaries.addons.mozilla.org",
+    version: "1.0",
+    updateURL: "http://localhost:" + gPort + "/data/test_dictionary.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Dictionary",
+  }, profileDir);
+  restartManager();
+
+  prepare_test({
+    "ab-CD@dictionaries.addons.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded"
+  ], callback_soon(check_test_27));
+
+  AddonManagerPrivate.backgroundUpdateCheck();
+}
+
+function check_test_27(install) {
+  do_check_eq(install.existingAddon.pendingUpgrade.install, install);
+
+  restartManager();
+  AddonManager.getAddonByID("ab-CD@dictionaries.addons.mozilla.org", function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "2.0");
+    do_check_eq(b1.type, "dictionary");
+    b1.uninstall();
+    do_execute_soon(run_test_28);
+  });
+}
+
+// Tests that an update check from a bootstrappable add-on to a normal add-on works
+function run_test_28() {
+  restartManager();
+
+  writeInstallRDFForExtension({
+    id: "ef@dictionaries.addons.mozilla.org",
+    version: "1.0",
+    type: "64",
+    updateURL: "http://localhost:" + gPort + "/data/test_dictionary.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Dictionary ef",
+  }, profileDir);
+  restartManager();
+
+  prepare_test({
+    "ef@dictionaries.addons.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded"
+  ], callback_soon(check_test_28));
+
+  AddonManagerPrivate.backgroundUpdateCheck();
+}
+
+function check_test_28(install) {
+  do_check_eq(install.existingAddon.pendingUpgrade.install, install);
+
+  restartManager();
+  AddonManager.getAddonByID("ef@dictionaries.addons.mozilla.org", function(b2) {
+    do_check_neq(b2, null);
+    do_check_eq(b2.version, "2.0");
+    do_check_eq(b2.type, "extension");
+    b2.uninstall();
+    do_execute_soon(run_test_29);
+  });
+}
+
+// Tests that an update check from a bootstrappable add-on to a bootstrappable add-on works
+function run_test_29() {
+  restartManager();
+
+  writeInstallRDFForExtension({
+    id: "gh@dictionaries.addons.mozilla.org",
+    version: "1.0",
+    type: "64",
+    updateURL: "http://localhost:" + gPort + "/data/test_dictionary.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Dictionary gh",
+  }, profileDir);
+  restartManager();
+
+  prepare_test({
+    "gh@dictionaries.addons.mozilla.org": [
+      ["onInstalling", false /* = no restart */],
+      ["onInstalled", false]
+    ]
+  }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded"
+  ], check_test_29);
+
+  AddonManagerPrivate.backgroundUpdateCheck();
+}
+
+function check_test_29(install) {
+  AddonManager.getAddonByID("gh@dictionaries.addons.mozilla.org", function(b2) {
+    do_check_neq(b2, null);
+    do_check_eq(b2.version, "2.0");
+    do_check_eq(b2.type, "dictionary");
+
+    prepare_test({
+      "gh@dictionaries.addons.mozilla.org": [
+        ["onUninstalling", false],
+        ["onUninstalled", false],
+      ]
+    }, [
+    ], callback_soon(finish_test_29));
+
+    b2.uninstall();
+  });
+}
+
+function finish_test_29() {
+  testserver.stop(do_test_finished);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_disable.js b/toolkit/mozapps/webextensions/test/xpcshell/test_disable.js
new file mode 100644
index 000000000..867715863
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_disable.js
@@ -0,0 +1,194 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/NetUtil.jsm");
+
+// This verifies that add-ons can be disabled and enabled.
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  optionsURL: "chrome://foo/content/options.xul",
+  aboutURL: "chrome://foo/content/about.xul",
+  iconURL: "chrome://foo/content/icon.png",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+var gIconURL = null;
+
+// Sets up the profile by installing an add-on.
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+    do_check_eq(a1, null);
+    do_check_not_in_crash_annotation(addon1.id, addon1.version);
+
+    writeInstallRDFForExtension(addon1, profileDir, addon1.id, "icon.png");
+    gIconURL = do_get_addon_root_uri(profileDir.clone(), addon1.id) + "icon.png";
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(newa1) {
+      do_check_neq(newa1, null);
+      do_check_true(newa1.isActive);
+      do_check_false(newa1.userDisabled);
+      do_check_eq(newa1.aboutURL, "chrome://foo/content/about.xul");
+      do_check_eq(newa1.optionsURL, "chrome://foo/content/options.xul");
+      do_check_eq(newa1.iconURL, "chrome://foo/content/icon.png");
+      do_check_true(isExtensionInAddonsList(profileDir, newa1.id));
+      do_check_true(hasFlag(newa1.permissions, AddonManager.PERM_CAN_DISABLE));
+      do_check_false(hasFlag(newa1.permissions, AddonManager.PERM_CAN_ENABLE));
+      do_check_eq(newa1.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_DISABLE |
+                                                    AddonManager.OP_NEEDS_RESTART_UNINSTALL);
+      do_check_in_crash_annotation(addon1.id, addon1.version);
+
+      run_test_1();
+    });
+  }));
+}
+
+// Disabling an add-on should work
+function run_test_1() {
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onDisabling"
+    ]
+  });
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1.operationsRequiringRestart &
+                 AddonManager.OP_NEEDS_RESTART_DISABLE, 0);
+    a1.userDisabled = true;
+    do_check_eq(a1.aboutURL, "chrome://foo/content/about.xul");
+    do_check_eq(a1.optionsURL, "chrome://foo/content/options.xul");
+    do_check_eq(a1.iconURL, "chrome://foo/content/icon.png");
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_eq(a1.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_DISABLE |
+                                               AddonManager.OP_NEEDS_RESTART_UNINSTALL);
+    do_check_in_crash_annotation(addon1.id, addon1.version);
+
+    ensure_test_completed();
+
+    AddonManager.getAddonsWithOperationsByTypes(null, callback_soon(function(list) {
+      do_check_eq(list.length, 1);
+      do_check_eq(list[0].id, "addon1@tests.mozilla.org");
+
+      restartManager();
+
+      AddonManager.getAddonByID("addon1@tests.mozilla.org", function(newa1) {
+        do_check_neq(newa1, null);
+        do_check_false(newa1.isActive);
+        do_check_true(newa1.userDisabled);
+        do_check_eq(newa1.aboutURL, null);
+        do_check_eq(newa1.optionsURL, null);
+        do_check_eq(newa1.iconURL, gIconURL);
+        do_check_false(isExtensionInAddonsList(profileDir, newa1.id));
+        do_check_false(hasFlag(newa1.permissions, AddonManager.PERM_CAN_DISABLE));
+        do_check_true(hasFlag(newa1.permissions, AddonManager.PERM_CAN_ENABLE));
+        do_check_eq(newa1.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_ENABLE);
+        do_check_not_in_crash_annotation(addon1.id, addon1.version);
+
+        run_test_2();
+      });
+    }));
+  });
+}
+
+// Enabling an add-on should work.
+function run_test_2() {
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onEnabling"
+    ]
+  });
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    a1.userDisabled = false;
+    do_check_eq(a1.aboutURL, null);
+    do_check_eq(a1.optionsURL, null);
+    do_check_eq(a1.iconURL, gIconURL);
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_eq(a1.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_ENABLE);
+
+    ensure_test_completed();
+
+    AddonManager.getAddonsWithOperationsByTypes(null, callback_soon(function(list) {
+      do_check_eq(list.length, 1);
+      do_check_eq(list[0].id, "addon1@tests.mozilla.org");
+
+      restartManager();
+
+      AddonManager.getAddonByID("addon1@tests.mozilla.org", function(newa1) {
+        do_check_neq(newa1, null);
+        do_check_true(newa1.isActive);
+        do_check_false(newa1.userDisabled);
+        do_check_eq(newa1.aboutURL, "chrome://foo/content/about.xul");
+        do_check_eq(newa1.optionsURL, "chrome://foo/content/options.xul");
+        do_check_eq(newa1.iconURL, "chrome://foo/content/icon.png");
+        do_check_true(isExtensionInAddonsList(profileDir, newa1.id));
+        do_check_true(hasFlag(newa1.permissions, AddonManager.PERM_CAN_DISABLE));
+        do_check_false(hasFlag(newa1.permissions, AddonManager.PERM_CAN_ENABLE));
+        do_check_eq(newa1.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_DISABLE |
+                                                      AddonManager.OP_NEEDS_RESTART_UNINSTALL);
+        do_check_in_crash_annotation(addon1.id, addon1.version);
+
+        run_test_3();
+      });
+    }));
+  });
+}
+
+// Disabling then enabling without restart should fire onOperationCancelled.
+function run_test_3() {
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onDisabling"
+    ]
+  });
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+    a1.userDisabled = true;
+    ensure_test_completed();
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        "onOperationCancelled"
+      ]
+    });
+    a1.userDisabled = false;
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    ensure_test_completed();
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(newa1) {
+      do_check_neq(newa1, null);
+      do_check_true(newa1.isActive);
+      do_check_false(newa1.userDisabled);
+      do_check_eq(newa1.aboutURL, "chrome://foo/content/about.xul");
+      do_check_eq(newa1.optionsURL, "chrome://foo/content/options.xul");
+      do_check_eq(newa1.iconURL, "chrome://foo/content/icon.png");
+      do_check_true(isExtensionInAddonsList(profileDir, newa1.id));
+      do_check_true(hasFlag(newa1.permissions, AddonManager.PERM_CAN_DISABLE));
+      do_check_false(hasFlag(newa1.permissions, AddonManager.PERM_CAN_ENABLE));
+
+      do_execute_soon(do_test_finished);
+    });
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_distribution.js b/toolkit/mozapps/webextensions/test/xpcshell/test_distribution.js
new file mode 100644
index 000000000..720b454cc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_distribution.js
@@ -0,0 +1,273 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-ons distributed with the application get installed
+// correctly
+
+// Allow distributed add-ons to install
+Services.prefs.setBoolPref("extensions.installDistroAddons", true);
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+const distroDir = gProfD.clone();
+distroDir.append("distribution");
+distroDir.append("extensions");
+registerDirectory("XREAppDist", distroDir.parent);
+
+var addon1_1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test version 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "5"
+  }]
+};
+
+var addon1_2 = {
+  id: "addon1@tests.mozilla.org",
+  version: "2.0",
+  name: "Test version 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "5"
+  }]
+};
+
+var addon1_3 = {
+  id: "addon1@tests.mozilla.org",
+  version: "3.0",
+  name: "Test version 3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "5"
+  }]
+};
+
+function getActiveVersion() {
+  return Services.prefs.getIntPref("bootstraptest.active_version");
+}
+
+function getInstalledVersion() {
+  return Services.prefs.getIntPref("bootstraptest.installed_version");
+}
+
+function setOldModificationTime() {
+  // Make sure the installed extension has an old modification time so any
+  // changes will be detected
+  shutdownManager()
+  let extension = gProfD.clone();
+  extension.append("extensions");
+  if (Services.prefs.getBoolPref("extensions.alwaysUnpack"))
+    extension.append("addon1@tests.mozilla.org");
+  else
+    extension.append("addon1@tests.mozilla.org.xpi");
+  setExtensionModifiedTime(extension, Date.now() - MAKE_FILE_OLD_DIFFERENCE);
+  startupManager(false);
+}
+
+function run_test() {
+  do_test_pending();
+
+  run_test_1();
+}
+
+// Tests that on the first startup the add-on gets installed, with now as the
+// profile modifiedTime.
+function run_test_1() {
+  let extension = writeInstallRDFForExtension(addon1_1, distroDir);
+  setExtensionModifiedTime(extension, Date.now() - MAKE_FILE_OLD_DIFFERENCE);
+
+  startupManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+    do_check_true(a1.isActive);
+    do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+    do_check_false(a1.foreignInstall);
+
+    // Modification time should be updated when the addon is copied to the
+    // profile.
+    let testURI = a1.getResourceURI(TEST_UNPACKED ? "install.rdf" : "");
+    let testFile = testURI.QueryInterface(Components.interfaces.nsIFileURL).file;
+
+    do_check_true(testFile.exists());
+    let difference = testFile.lastModifiedTime - Date.now();
+    do_check_true(Math.abs(difference) < MAX_TIME_DIFFERENCE);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+// Tests that starting with a newer version in the distribution dir doesn't
+// install it yet
+function run_test_2() {
+  setOldModificationTime();
+
+  writeInstallRDFForExtension(addon1_2, distroDir);
+
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+    do_check_true(a1.isActive);
+    do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Test that an app upgrade installs the newer version
+function run_test_3() {
+  restartManager("2");
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "2.0");
+    do_check_true(a1.isActive);
+    do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+    do_check_false(a1.foreignInstall);
+
+    do_execute_soon(run_test_4);
+  });
+}
+
+// Test that an app upgrade doesn't downgrade the extension
+function run_test_4() {
+  setOldModificationTime();
+
+  writeInstallRDFForExtension(addon1_1, distroDir);
+
+  restartManager("3");
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "2.0");
+    do_check_true(a1.isActive);
+    do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+
+    do_execute_soon(run_test_5);
+  });
+}
+
+// Tests that after uninstalling a restart doesn't re-install the extension
+function run_test_5() {
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+    a1.uninstall();
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1_2) {
+      do_check_eq(a1_2, null);
+
+      do_execute_soon(run_test_6);
+    });
+  }));
+}
+
+// Tests that upgrading the application still doesn't re-install the uninstalled
+// extension
+function run_test_6() {
+  restartManager("4");
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_eq(a1, null);
+
+    do_execute_soon(run_test_7);
+  });
+}
+
+// Tests that a pending install of a newer version of a distributed add-on
+// at app change still gets applied
+function run_test_7() {
+  Services.prefs.clearUserPref("extensions.installedDistroAddon.addon1@tests.mozilla.org");
+
+  installAllFiles([do_get_addon("test_distribution1_2")], function() {
+    restartManager(2);
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.version, "2.0");
+      do_check_true(a1.isActive);
+      do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+
+      a1.uninstall();
+      do_execute_soon(run_test_8);
+    });
+  });
+}
+
+// Tests that a pending install of a older version of a distributed add-on
+// at app change gets replaced by the distributed version
+function run_test_8() {
+  restartManager();
+
+  writeInstallRDFForExtension(addon1_3, distroDir);
+
+  installAllFiles([do_get_addon("test_distribution1_2")], function() {
+    restartManager(3);
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.version, "3.0");
+      do_check_true(a1.isActive);
+      do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+
+      a1.uninstall();
+      do_execute_soon(run_test_9);
+    });
+  });
+}
+
+// Tests that bootstrapped add-ons distributed start up correctly, also that
+// add-ons with multiple directories get copied fully
+function run_test_9() {
+  restartManager();
+
+  // Copy the test add-on to the distro dir
+  let addon = do_get_file("data/test_distribution2_2");
+  addon.copyTo(distroDir, "addon2@tests.mozilla.org");
+
+  restartManager("5");
+
+  AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+    do_check_neq(a2, null);
+    do_check_true(a2.isActive);
+
+    do_check_eq(getInstalledVersion(), 2);
+    do_check_eq(getActiveVersion(), 2);
+
+    do_check_true(a2.hasResource("bootstrap.js"));
+    do_check_true(a2.hasResource("subdir/dummy.txt"));
+    do_check_true(a2.hasResource("subdir/subdir2/dummy2.txt"));
+
+    // Currently installs are unpacked if the source is a directory regardless
+    // of the install.rdf property or the global preference
+
+    let addonDir = profileDir.clone();
+    addonDir.append("addon2@tests.mozilla.org");
+    do_check_true(addonDir.exists());
+    do_check_true(addonDir.isDirectory());
+    addonDir.append("subdir");
+    do_check_true(addonDir.exists());
+    do_check_true(addonDir.isDirectory());
+    addonDir.append("subdir2");
+    do_check_true(addonDir.exists());
+    do_check_true(addonDir.isDirectory());
+    addonDir.append("dummy2.txt");
+    do_check_true(addonDir.exists());
+    do_check_true(addonDir.isFile());
+
+    a2.uninstall();
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_dss.js b/toolkit/mozapps/webextensions/test/xpcshell/test_dss.js
new file mode 100644
index 000000000..b408cc9c7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_dss.js
@@ -0,0 +1,824 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/NetUtil.jsm");
+
+// using a dynamic port in the addon metadata
+Components.utils.import("resource://testing-common/httpd.js");
+var gServer = new HttpServer();
+gServer.start(-1);
+gPort = gServer.identity.primaryPort;
+
+// This verifies that themes behave as expected
+
+const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
+const PREF_EXTENSIONS_DSS_ENABLED = "extensions.dss.enabled";
+
+Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// Observer to ensure a "lightweight-theme-styling-update" notification is sent
+// when expected
+var gLWThemeChanged = false;
+var LightweightThemeObserver = {
+  observe: function(aSubject, aTopic, aData) {
+    if (aTopic != "lightweight-theme-styling-update")
+      return;
+
+    gLWThemeChanged = true;
+  }
+};
+
+AM_Cc["@mozilla.org/observer-service;1"]
+     .getService(Components.interfaces.nsIObserverService)
+     .addObserver(LightweightThemeObserver, "lightweight-theme-styling-update", false);
+
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  Services.prefs.setCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN, "theme1/1.0");
+  Services.prefs.setBoolPref(PREF_EXTENSIONS_DSS_ENABLED, true);
+  writeInstallRDFForExtension({
+    id: "theme1@tests.mozilla.org",
+    version: "1.0",
+    name: "Test 1",
+    type: 4,
+    internalName: "theme1/1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "theme2@tests.mozilla.org",
+    version: "1.0",
+    name: "Test 1",
+    internalName: "theme2/1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  }, profileDir);
+
+  // We need a default theme for some of these things to work but we have hidden
+  // the one in the application directory.
+  writeInstallRDFForExtension({
+    id: "default@tests.mozilla.org",
+    version: "1.0",
+    name: "Default",
+    internalName: "classic/1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  }, profileDir);
+
+  startupManager();
+  // Make sure we only register once despite multiple calls
+  AddonManager.addInstallListener(InstallListener);
+  AddonManager.addAddonListener(AddonListener);
+  AddonManager.addInstallListener(InstallListener);
+  AddonManager.addAddonListener(AddonListener);
+  AddonManager.addInstallListener(InstallListener);
+
+  AddonManager.getAddonsByIDs(["theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([t1, t2]) {
+    do_check_neq(t1, null);
+    do_check_false(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_true(t1.isActive);
+    do_check_eq(t1.screenshots, null);
+    do_check_true(isThemeInAddonsList(profileDir, t1.id));
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_neq(t2, null);
+    do_check_true(t2.userDisabled);
+    do_check_false(t2.appDisabled);
+    do_check_false(t2.isActive);
+    do_check_eq(t2.screenshots, null);
+    do_check_true(isThemeInAddonsList(profileDir, t2.id));
+    do_check_false(hasFlag(t2.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(t2.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_execute_soon(run_test_1);
+  });
+}
+
+function end_test() {
+  do_execute_soon(do_test_finished);
+}
+
+// Checks enabling one theme disables the others
+function run_test_1() {
+  prepare_test({
+    "theme1@tests.mozilla.org": [
+      ["onDisabling", false],
+      "onDisabled"
+    ],
+    "theme2@tests.mozilla.org": [
+      ["onEnabling", false],
+      "onEnabled"
+    ]
+  });
+  AddonManager.getAddonsByIDs(["theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([t1, t2]) {
+    t2.userDisabled = false;
+
+    ensure_test_completed();
+    do_check_false(hasFlag(t2.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(t2.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_true(t1.userDisabled);
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(t1.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_execute_soon(check_test_1);
+  });
+}
+
+function check_test_1() {
+  restartManager();
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "theme2/1.0");
+
+  AddonManager.getAddonsByIDs(["theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([t1, t2]) {
+    do_check_neq(t1, null);
+    do_check_true(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_false(t1.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, t1.id));
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(t1.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_neq(t2, null);
+    do_check_false(t2.userDisabled);
+    do_check_false(t2.appDisabled);
+    do_check_true(t2.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, t2.id));
+    do_check_false(hasFlag(t2.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(t2.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+// Removing the active theme should fall back to the default (not ideal in this
+// case since we don't have the default theme installed)
+function run_test_2() {
+  var dest = profileDir.clone();
+  dest.append(do_get_expected_addon_name("theme2@tests.mozilla.org"));
+  dest.remove(true);
+
+  restartManager();
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  AddonManager.getAddonsByIDs(["theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([t1, t2]) {
+    do_check_neq(t1, null);
+    do_check_true(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_false(t1.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, t1.id));
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(t1.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_eq(t2, null);
+    do_check_false(isThemeInAddonsList(profileDir, "theme2@tests.mozilla.org"));
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Installing a lightweight theme should happen instantly and disable the default theme
+function run_test_3() {
+  writeInstallRDFForExtension({
+    id: "theme2@tests.mozilla.org",
+    version: "1.0",
+    name: "Test 1",
+    internalName: "theme2/1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  }, profileDir);
+  restartManager();
+
+  prepare_test({
+    "1@personas.mozilla.org": [
+      ["onInstalling", false],
+      "onInstalled",
+      ["onEnabling", false],
+      "onEnabled"
+    ],
+    "default@tests.mozilla.org": [
+      ["onDisabling", false],
+      "onDisabled",
+    ]
+  }, [
+    "onExternalInstall"
+  ]);
+
+  LightweightThemeManager.currentTheme = {
+    id: "1",
+    version: "1",
+    name: "Test LW Theme",
+    description: "A test theme",
+    author: "Mozilla",
+    homepageURL: "http://localhost:" + gPort + "/data/index.html",
+    headerURL: "http://localhost:" + gPort + "/data/header.png",
+    footerURL: "http://localhost:" + gPort + "/data/footer.png",
+    previewURL: "http://localhost:" + gPort + "/data/preview.png",
+    iconURL: "http://localhost:" + gPort + "/data/icon.png"
+  };
+
+  ensure_test_completed();
+
+  AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+    do_check_neq(null, p1);
+    do_check_eq(p1.name, "Test LW Theme");
+    do_check_eq(p1.version, "1");
+    do_check_eq(p1.type, "theme");
+    do_check_eq(p1.description, "A test theme");
+    do_check_eq(p1.creator, "Mozilla");
+    do_check_eq(p1.homepageURL, "http://localhost:" + gPort + "/data/index.html");
+    do_check_eq(p1.iconURL, "http://localhost:" + gPort + "/data/icon.png");
+    do_check_eq(p1.screenshots.length, 1);
+    do_check_eq(p1.screenshots[0], "http://localhost:" + gPort + "/data/preview.png");
+    do_check_false(p1.appDisabled);
+    do_check_false(p1.userDisabled);
+    do_check_true(p1.isCompatible);
+    do_check_true(p1.providesUpdatesSecurely);
+    do_check_eq(p1.blocklistState, 0);
+    do_check_true(p1.isActive);
+    do_check_eq(p1.pendingOperations, 0);
+    do_check_eq(p1.permissions, AddonManager.PERM_CAN_UNINSTALL | AddonManager.PERM_CAN_DISABLE);
+    do_check_eq(p1.scope, AddonManager.SCOPE_PROFILE);
+    do_check_true("isCompatibleWith" in p1);
+    do_check_true("findUpdates" in p1);
+
+    AddonManager.getAddonsByTypes(["theme"], function(addons) {
+      let seen = false;
+      addons.forEach(function(a) {
+        if (a.id == "1@personas.mozilla.org") {
+          seen = true;
+        }
+        else {
+          dump("Checking theme " + a.id + "\n");
+          do_check_false(a.isActive);
+          do_check_true(a.userDisabled);
+        }
+      });
+      do_check_true(seen);
+
+      do_check_true(gLWThemeChanged);
+      gLWThemeChanged = false;
+
+      do_execute_soon(run_test_4);
+    });
+  });
+}
+
+// Installing a second lightweight theme should disable the first with no restart
+function run_test_4() {
+  prepare_test({
+    "1@personas.mozilla.org": [
+      ["onDisabling", false],
+      "onDisabled",
+    ],
+    "2@personas.mozilla.org": [
+      ["onInstalling", false],
+      "onInstalled",
+      ["onEnabling", false],
+      "onEnabled"
+    ]
+  }, [
+    "onExternalInstall"
+  ]);
+
+  LightweightThemeManager.currentTheme = {
+    id: "2",
+    version: "1",
+    name: "Test LW Theme",
+    description: "A second test theme",
+    author: "Mozilla",
+    homepageURL: "http://localhost:" + gPort + "/data/index.html",
+    headerURL: "http://localhost:" + gPort + "/data/header.png",
+    footerURL: "http://localhost:" + gPort + "/data/footer.png",
+    previewURL: "http://localhost:" + gPort + "/data/preview.png",
+    iconURL: "http://localhost:" + gPort + "/data/icon.png"
+  };
+
+  ensure_test_completed();
+
+  AddonManager.getAddonsByIDs(["1@personas.mozilla.org",
+                               "2@personas.mozilla.org"], function([p1, p2]) {
+    do_check_neq(null, p2);
+    do_check_false(p2.appDisabled);
+    do_check_false(p2.userDisabled);
+    do_check_true(p2.isActive);
+    do_check_eq(p2.pendingOperations, 0);
+    do_check_eq(p2.permissions, AddonManager.PERM_CAN_UNINSTALL | AddonManager.PERM_CAN_DISABLE);
+
+    do_check_neq(null, p1);
+    do_check_false(p1.appDisabled);
+    do_check_true(p1.userDisabled);
+    do_check_false(p1.isActive);
+    do_check_eq(p1.pendingOperations, 0);
+    do_check_eq(p1.permissions, AddonManager.PERM_CAN_UNINSTALL | AddonManager.PERM_CAN_ENABLE);
+
+    AddonManager.getAddonsByTypes(["theme"], function(addons) {
+      let seen = false;
+      addons.forEach(function(a) {
+        if (a.id == "2@personas.mozilla.org") {
+          seen = true;
+        }
+        else {
+          dump("Checking theme " + a.id + "\n");
+          do_check_false(a.isActive);
+          do_check_true(a.userDisabled);
+        }
+      });
+      do_check_true(seen);
+
+      do_check_true(gLWThemeChanged);
+      gLWThemeChanged = false;
+
+      do_execute_soon(run_test_5);
+    });
+  });
+}
+
+// Switching to a custom theme should disable the lightweight theme and require
+// a restart. Cancelling that should also be possible.
+function run_test_5() {
+  prepare_test({
+    "2@personas.mozilla.org": [
+      ["onDisabling", false],
+      "onDisabled"
+    ],
+    "theme2@tests.mozilla.org": [
+      ["onEnabling", false],
+      "onEnabled"
+    ]
+  });
+
+  AddonManager.getAddonsByIDs(["2@personas.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([p2, t2]) {
+    t2.userDisabled = false;
+
+    ensure_test_completed();
+
+    prepare_test({
+      "2@personas.mozilla.org": [
+        "onEnabling"
+      ],
+      "theme2@tests.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ]
+    });
+
+    p2.userDisabled = false;
+
+    ensure_test_completed();
+
+    prepare_test({
+      "2@personas.mozilla.org": [
+        ["onOperationCancelled", true]
+      ],
+      "theme2@tests.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ]
+    });
+
+    t2.userDisabled = false;
+
+    ensure_test_completed();
+
+    do_check_true(t2.isActive);
+    do_check_false(t2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_ENABLE, t2.pendingOperations));
+    do_check_false(p2.isActive);
+    do_check_true(p2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_DISABLE, p2.pendingOperations));
+    do_check_true(hasFlag(AddonManager.PERM_CAN_ENABLE, p2.permissions));
+    do_check_true(gLWThemeChanged);
+
+    do_execute_soon(check_test_5);
+  });
+}
+
+function check_test_5() {
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["2@personas.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([p2, t2]) {
+    do_check_true(t2.isActive);
+    do_check_false(t2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_ENABLE, t2.pendingOperations));
+    do_check_false(p2.isActive);
+    do_check_true(p2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_DISABLE, p2.pendingOperations));
+
+    do_check_true(gLWThemeChanged);
+    gLWThemeChanged = false;
+
+    do_execute_soon(run_test_6);
+  });
+}
+
+// Switching from a custom theme to a lightweight theme should require a restart
+function run_test_6() {
+  prepare_test({
+    "2@personas.mozilla.org": [
+      "onEnabling",
+    ],
+    "theme2@tests.mozilla.org": [
+      ["onDisabling", false],
+      "onDisabled"
+    ]
+  });
+
+  AddonManager.getAddonsByIDs(["2@personas.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([p2, t2]) {
+    p2.userDisabled = false;
+
+    ensure_test_completed();
+
+    prepare_test({
+      "2@personas.mozilla.org": [
+        "onOperationCancelled",
+      ],
+      "theme2@tests.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ]
+    });
+
+    t2.userDisabled = false;
+
+    ensure_test_completed();
+
+    prepare_test({
+      "2@personas.mozilla.org": [
+        "onEnabling",
+      ],
+      "theme2@tests.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ]
+    });
+
+    p2.userDisabled = false;
+
+    ensure_test_completed();
+
+    do_check_false(p2.isActive);
+    do_check_false(p2.userDisabled);
+    do_check_true(hasFlag(AddonManager.PENDING_ENABLE, p2.pendingOperations));
+    do_check_false(t2.isActive);
+    do_check_true(t2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_DISABLE, t2.pendingOperations));
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(check_test_6);
+  });
+}
+
+function check_test_6() {
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["2@personas.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([p2, t2]) {
+    do_check_true(p2.isActive);
+    do_check_false(p2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_ENABLE, p2.pendingOperations));
+    do_check_false(t2.isActive);
+    do_check_true(t2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_DISABLE, t2.pendingOperations));
+
+    do_check_true(gLWThemeChanged);
+    gLWThemeChanged = false;
+
+    do_execute_soon(run_test_7);
+  });
+}
+
+// Uninstalling a lightweight theme should not require a restart
+function run_test_7() {
+  prepare_test({
+    "1@personas.mozilla.org": [
+      ["onUninstalling", false],
+      "onUninstalled"
+    ]
+  });
+
+  AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+    p1.uninstall();
+
+    ensure_test_completed();
+    do_check_eq(LightweightThemeManager.usedThemes.length, 1);
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(run_test_8);
+  });
+}
+
+// Uninstalling a lightweight theme in use should not require a restart and it
+// should reactivate the default theme
+// Also, uninstalling a lightweight theme in use should send a
+// "lightweight-theme-styling-update" notification through the observer service
+function run_test_8() {
+  prepare_test({
+    "2@personas.mozilla.org": [
+      ["onUninstalling", false],
+      "onUninstalled"
+    ],
+    "default@tests.mozilla.org": [
+      ["onEnabling", false],
+      "onEnabled"
+    ]
+  });
+
+  AddonManager.getAddonByID("2@personas.mozilla.org", function(p2) {
+    p2.uninstall();
+
+    ensure_test_completed();
+    do_check_eq(LightweightThemeManager.usedThemes.length, 0);
+
+    do_check_true(gLWThemeChanged);
+    gLWThemeChanged = false;
+
+    do_execute_soon(run_test_9);
+  });
+}
+
+// Uninstalling a theme not in use should not require a restart
+function run_test_9() {
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", function(t1) {
+    prepare_test({
+      "theme1@tests.mozilla.org": [
+        ["onUninstalling", false],
+        "onUninstalled"
+      ]
+    });
+
+    t1.uninstall();
+
+    ensure_test_completed();
+
+    AddonManager.getAddonByID("theme1@tests.mozilla.org", function(newt1) {
+      do_check_eq(newt1, null);
+      do_check_false(gLWThemeChanged);
+
+      do_execute_soon(run_test_10);
+    });
+  });
+}
+
+// Uninstalling a custom theme in use should require a restart
+function run_test_10() {
+  AddonManager.getAddonByID("theme2@tests.mozilla.org", callback_soon(function(oldt2) {
+    prepare_test({
+      "theme2@tests.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ],
+      "default@tests.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ]
+    });
+
+    oldt2.userDisabled = false;
+
+    ensure_test_completed();
+
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                                 "theme2@tests.mozilla.org"],
+                                 callback_soon(function([d, t2]) {
+      do_check_true(t2.isActive);
+      do_check_false(t2.userDisabled);
+      do_check_false(t2.appDisabled);
+      do_check_false(d.isActive);
+      do_check_true(d.userDisabled);
+      do_check_false(d.appDisabled);
+
+      prepare_test({
+        "theme2@tests.mozilla.org": [
+          ["onUninstalling", false],
+          "onUninstalled"
+        ],
+        "default@tests.mozilla.org": [
+          ["onEnabling", false],
+          "onEnabled"
+        ]
+      });
+
+      t2.uninstall();
+
+      ensure_test_completed();
+      do_check_false(gLWThemeChanged);
+
+      restartManager();
+
+      do_execute_soon(run_test_11);
+    }));
+  }));
+}
+
+// Installing a custom theme not in use should not require a restart
+function run_test_11() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_theme"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.type, "theme");
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Test Theme 1");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+
+    prepare_test({
+      "theme1@tests.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], callback_soon(check_test_11));
+    install.install();
+  });
+}
+
+function check_test_11() {
+  restartManager();
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", function(t1) {
+    do_check_neq(t1, null);
+    var previewSpec = do_get_addon_root_uri(profileDir, "theme1@tests.mozilla.org") + "preview.png";
+    do_check_eq(t1.screenshots.length, 1);
+    do_check_eq(t1.screenshots[0], previewSpec);
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(run_test_12);
+  });
+}
+
+// Updating a custom theme not in use should not require a restart
+function run_test_12() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_theme"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.type, "theme");
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Test Theme 1");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+
+    prepare_test({
+      "theme1@tests.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], check_test_12);
+    install.install();
+  });
+}
+
+function check_test_12() {
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", function(t1) {
+    do_check_neq(t1, null);
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(run_test_13);
+  });
+}
+
+// Updating a custom theme in use should require a restart
+function run_test_13() {
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", callback_soon(function(t1) {
+    prepare_test({
+      "theme1@tests.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ],
+      "default@tests.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ]
+    });
+
+    t1.userDisabled = false;
+    ensure_test_completed();
+    restartManager();
+
+    prepare_test({ }, [
+      "onNewInstall"
+    ]);
+
+    AddonManager.getInstallForFile(do_get_addon("test_theme"), function(install) {
+      ensure_test_completed();
+
+      do_check_neq(install, null);
+      do_check_eq(install.type, "theme");
+      do_check_eq(install.version, "1.0");
+      do_check_eq(install.name, "Test Theme 1");
+      do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+
+      prepare_test({
+        "theme1@tests.mozilla.org": [
+          "onInstalling",
+        ]
+      }, [
+        "onInstallStarted",
+        "onInstallEnded",
+      ], callback_soon(check_test_13));
+      install.install();
+    });
+  }));
+}
+
+function check_test_13() {
+  restartManager();
+
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", function(t1) {
+    do_check_neq(t1, null);
+    do_check_true(t1.isActive);
+    do_check_false(gLWThemeChanged);
+    t1.uninstall();
+
+    do_execute_soon(run_test_14);
+  });
+}
+
+// Switching from a lightweight theme to the default theme should not require
+// a restart
+function run_test_14() {
+  restartManager();
+  LightweightThemeManager.currentTheme = {
+    id: "1",
+    version: "1",
+    name: "Test LW Theme",
+    description: "A test theme",
+    author: "Mozilla",
+    homepageURL: "http://localhost:" + gPort + "/data/index.html",
+    headerURL: "http://localhost:" + gPort + "/data/header.png",
+    footerURL: "http://localhost:" + gPort + "/data/footer.png",
+    previewURL: "http://localhost:" + gPort + "/data/preview.png",
+    iconURL: "http://localhost:" + gPort + "/data/icon.png"
+  };
+
+  AddonManager.getAddonByID("default@tests.mozilla.org", function(d) {
+    do_check_true(d.userDisabled);
+    do_check_false(d.isActive);
+
+    prepare_test({
+      "1@personas.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ],
+      "default@tests.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ]
+    });
+
+    d.userDisabled = false;
+    ensure_test_completed();
+
+    do_check_false(d.userDisabled);
+    do_check_true(d.isActive);
+
+    do_check_true(gLWThemeChanged);
+    gLWThemeChanged = false;
+
+    end_test();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_duplicateplugins.js b/toolkit/mozapps/webextensions/test/xpcshell/test_duplicateplugins.js
new file mode 100644
index 000000000..4d1848ea4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_duplicateplugins.js
@@ -0,0 +1,187 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://testing-common/MockRegistrar.jsm");
+
+var Ci = Components.interfaces;
+
+// This verifies that duplicate plugins are coalesced and maintain their ID
+// across restarts.
+
+var PLUGINS = [{
+  name: "Duplicate Plugin 1",
+  description: "A duplicate plugin",
+  version: "1",
+  blocklisted: false,
+  enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+  get disabled() {
+    return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+  },
+  filename: "/home/mozilla/.plugins/dupplugin1.so"
+}, {
+  name: "Duplicate Plugin 1",
+  description: "A duplicate plugin",
+  version: "1",
+  blocklisted: false,
+  enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+  get disabled() {
+    return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+  },
+  filename: "/usr/lib/plugins/dupplugin1.so"
+}, {
+  name: "Duplicate Plugin 2",
+  description: "Another duplicate plugin",
+  version: "1",
+  blocklisted: false,
+  enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+  get disabled() {
+    return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+  },
+  filename: "/home/mozilla/.plugins/dupplugin2.so"
+}, {
+  name: "Duplicate Plugin 2",
+  description: "Another duplicate plugin",
+  version: "1",
+  blocklisted: false,
+  enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+  get disabled() {
+    return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+  },
+  filename: "/usr/lib/plugins/dupplugin2.so"
+}, {
+  name: "Non-duplicate Plugin", // 3
+  description: "Not a duplicate plugin",
+  version: "1",
+  blocklisted: false,
+  enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+  get disabled() {
+    return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+  },
+  filename: "/home/mozilla/.plugins/dupplugin3.so"
+}, {
+  name: "Non-duplicate Plugin", // 4
+  description: "Not a duplicate because the descriptions are different",
+  version: "1",
+  blocklisted: false,
+  enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+  get disabled() {
+    return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+  },
+  filename: "/usr/lib/plugins/dupplugin4.so"
+}, {
+  name: "Another Non-duplicate Plugin", // 5
+  description: "Not a duplicate plugin",
+  version: "1",
+  blocklisted: false,
+  enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+  get disabled() {
+    return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+  },
+  filename: "/home/mozilla/.plugins/dupplugin5.so"
+}];
+
+// A fake plugin host to return the plugins defined above
+var PluginHost = {
+  getPluginTags: function(countRef) {
+    countRef.value = PLUGINS.length;
+    return PLUGINS;
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Components.interfaces.nsIPluginHost)
+     || iid.equals(Components.interfaces.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+MockRegistrar.register("@mozilla.org/plugin/host;1", PluginHost);
+
+var gPluginIDs = [null, null, null, null, null];
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  Services.prefs.setBoolPref("media.gmp-provider.enabled", false);
+
+  startupManager();
+
+  run_test_1();
+}
+
+function found_plugin(aNum, aId) {
+  if (gPluginIDs[aNum])
+    do_throw("Found duplicate of plugin " + aNum);
+  gPluginIDs[aNum] = aId;
+}
+
+// Test that the plugins were coalesced and all appear in the returned list
+function run_test_1() {
+  AddonManager.getAddonsByTypes(["plugin"], function(aAddons) {
+    do_check_eq(aAddons.length, 5);
+    aAddons.forEach(function(aAddon) {
+      if (aAddon.name == "Duplicate Plugin 1") {
+        found_plugin(0, aAddon.id);
+        do_check_eq(aAddon.description, "A duplicate plugin");
+      }
+      else if (aAddon.name == "Duplicate Plugin 2") {
+        found_plugin(1, aAddon.id);
+        do_check_eq(aAddon.description, "Another duplicate plugin");
+      }
+      else if (aAddon.name == "Another Non-duplicate Plugin") {
+        found_plugin(5, aAddon.id);
+        do_check_eq(aAddon.description, "Not a duplicate plugin");
+      }
+      else if (aAddon.name == "Non-duplicate Plugin") {
+        if (aAddon.description == "Not a duplicate plugin")
+          found_plugin(3, aAddon.id);
+        else if (aAddon.description == "Not a duplicate because the descriptions are different")
+          found_plugin(4, aAddon.id);
+        else
+          do_throw("Found unexpected plugin with description " + aAddon.description);
+      }
+      else {
+        do_throw("Found unexpected plugin " + aAddon.name);
+      }
+    });
+
+    run_test_2();
+  });
+}
+
+// Test that disabling a coalesced plugin disables all its tags
+function run_test_2() {
+  AddonManager.getAddonByID(gPluginIDs[0], function(p) {
+    do_check_false(p.userDisabled);
+    p.userDisabled = true;
+    do_check_true(PLUGINS[0].disabled);
+    do_check_true(PLUGINS[1].disabled);
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Test that IDs persist across restart
+function run_test_3() {
+  restartManager();
+
+  AddonManager.getAddonByID(gPluginIDs[0], callback_soon(function(p) {
+    do_check_neq(p, null);
+    do_check_eq(p.name, "Duplicate Plugin 1");
+    do_check_eq(p.description, "A duplicate plugin");
+
+    // Reorder the plugins and restart again
+    [PLUGINS[0], PLUGINS[1]] = [PLUGINS[1], PLUGINS[0]];
+    restartManager();
+
+    AddonManager.getAddonByID(gPluginIDs[0], function(p_2) {
+      do_check_neq(p_2, null);
+      do_check_eq(p_2.name, "Duplicate Plugin 1");
+      do_check_eq(p_2.description, "A duplicate plugin");
+
+      do_execute_soon(do_test_finished);
+    });
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_e10s_restartless.js b/toolkit/mozapps/webextensions/test/xpcshell/test_e10s_restartless.js
new file mode 100644
index 000000000..1a3a0e747
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_e10s_restartless.js
@@ -0,0 +1,429 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const ID = "bootstrap1@tests.mozilla.org";
+const ID2 = "bootstrap2@tests.mozilla.org";
+
+const APP_STARTUP   = 1;
+const ADDON_INSTALL = 5;
+
+function getStartupReason(id) {
+  let info = BootstrapMonitor.started.get(id);
+  return info ? info.reason : undefined;
+}
+
+BootstrapMonitor.init();
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+startupManager();
+
+function* check_normal() {
+  let install = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), resolve));
+  yield promiseCompleteAllInstalls([install]);
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_false(hasFlag(install.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonStarted(ID);
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon, install.addon);
+
+  do_check_false(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_DISABLE));
+  addon.userDisabled = true;
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_false(addon.isActive);
+  do_check_false(hasFlag(addon.pendingOperations, AddonManager.PENDING_DISABLE));
+
+  do_check_false(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_ENABLE));
+  addon.userDisabled = false;
+  BootstrapMonitor.checkAddonStarted(ID);
+  do_check_true(addon.isActive);
+  do_check_false(hasFlag(addon.pendingOperations, AddonManager.PENDING_ENABLE));
+
+  do_check_false(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_UNINSTALL));
+  addon.uninstall();
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+
+  yield promiseRestartManager();
+}
+
+// Installing the add-on normally doesn't require a restart
+add_task(function*() {
+  gAppInfo.browserTabsRemoteAutostart = false;
+  Services.prefs.setBoolPref("extensions.e10sBlocksEnabling", false);
+
+  yield check_normal();
+});
+
+// Enabling the pref doesn't change anything
+add_task(function*() {
+  gAppInfo.browserTabsRemoteAutostart = false;
+  Services.prefs.setBoolPref("extensions.e10sBlocksEnabling", true);
+
+  yield check_normal();
+});
+
+// Default e10s doesn't change anything
+add_task(function*() {
+  gAppInfo.browserTabsRemoteAutostart = true;
+  Services.prefs.setBoolPref("extensions.e10sBlocksEnabling", false);
+
+  yield check_normal();
+});
+
+// Pref and e10s blocks install
+add_task(function*() {
+  gAppInfo.browserTabsRemoteAutostart = true;
+  Services.prefs.setBoolPref("extensions.e10sBlocksEnabling", true);
+
+  let install = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), resolve));
+  yield promiseCompleteAllInstalls([install]);
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_true(hasFlag(install.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon, null);
+
+  yield promiseRestartManager();
+
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonStarted(ID);
+  do_check_eq(getStartupReason(ID), ADDON_INSTALL);
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  do_check_false(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_DISABLE));
+  addon.userDisabled = true;
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_false(addon.isActive);
+  do_check_false(hasFlag(addon.pendingOperations, AddonManager.PENDING_DISABLE));
+
+  do_check_true(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_ENABLE));
+  addon.userDisabled = false;
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_false(addon.isActive);
+  do_check_true(hasFlag(addon.pendingOperations, AddonManager.PENDING_ENABLE));
+
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  do_check_true(addon.isActive);
+  BootstrapMonitor.checkAddonStarted(ID);
+
+  do_check_false(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_UNINSTALL));
+  addon.uninstall();
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+
+  yield promiseRestartManager();
+});
+
+add_task(function*() {
+  gAppInfo.browserTabsRemoteAutostart = true;
+  Services.prefs.setBoolPref("extensions.e10sBlocksEnabling", true);
+
+  let install = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), resolve));
+  yield promiseCompleteAllInstalls([install]);
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_true(hasFlag(install.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon, null);
+
+  yield promiseRestartManager();
+
+  // After install and restart we should block.
+  let blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_true(blocked);
+
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonStarted(ID);
+  do_check_eq(getStartupReason(ID), ADDON_INSTALL);
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  do_check_false(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_DISABLE));
+  addon.userDisabled = true;
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_false(addon.isActive);
+  do_check_false(hasFlag(addon.pendingOperations, AddonManager.PENDING_DISABLE));
+  do_check_true(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_ENABLE));
+
+  yield promiseRestartManager();
+
+  // After disable and restart we should not block.
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_false(blocked);
+
+  addon = yield promiseAddonByID(ID);
+  addon.userDisabled = false;
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_false(addon.isActive);
+  do_check_true(hasFlag(addon.pendingOperations, AddonManager.PENDING_ENABLE));
+
+  yield promiseRestartManager();
+
+  // After re-enable and restart we should block.
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_true(blocked);
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  do_check_true(addon.isActive);
+  BootstrapMonitor.checkAddonStarted(ID);
+  // This should probably be ADDON_ENABLE, but its not easy to make
+  // that happen.  See bug 1304392 for discussion.
+  do_check_eq(getStartupReason(ID), APP_STARTUP);
+
+  do_check_false(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_UNINSTALL));
+  addon.uninstall();
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+
+  yield promiseRestartManager();
+
+  // After uninstall and restart we should not block.
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_false(blocked);
+
+  restartManager();
+});
+
+add_task(function*() {
+  gAppInfo.browserTabsRemoteAutostart = true;
+  Services.prefs.setBoolPref("extensions.e10sBlocksEnabling", true);
+
+  let install1 = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), resolve));
+  let install2 = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap2_1"), resolve));
+  yield promiseCompleteAllInstalls([install1, install2]);
+  do_check_eq(install1.state, AddonManager.STATE_INSTALLED);
+  do_check_eq(install2.state, AddonManager.STATE_INSTALLED);
+  do_check_true(hasFlag(install1.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+  do_check_true(hasFlag(install2.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+  let addon = yield promiseAddonByID(ID);
+  let addon2 = yield promiseAddonByID(ID2);
+
+  do_check_eq(addon, null);
+  do_check_eq(addon2, null);
+
+  yield promiseRestartManager();
+
+  // After install and restart we should block.
+  let blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_true(blocked);
+
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonStarted(ID);
+  do_check_eq(getStartupReason(ID), ADDON_INSTALL);
+
+  BootstrapMonitor.checkAddonInstalled(ID2);
+  BootstrapMonitor.checkAddonStarted(ID2);
+  do_check_eq(getStartupReason(ID2), ADDON_INSTALL);
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  addon2 = yield promiseAddonByID(ID2);
+  do_check_neq(addon2, null);
+
+  do_check_false(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_DISABLE));
+  addon.userDisabled = true;
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_false(addon.isActive);
+  do_check_false(hasFlag(addon.pendingOperations, AddonManager.PENDING_DISABLE));
+  do_check_true(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_ENABLE));
+
+  yield promiseRestartManager();
+
+  // After disable one addon and restart we should block.
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_true(blocked);
+
+  addon2 = yield promiseAddonByID(ID2);
+
+  do_check_false(hasFlag(addon2.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_DISABLE));
+  addon2.userDisabled = true;
+  BootstrapMonitor.checkAddonNotStarted(ID2);
+  do_check_false(addon2.isActive);
+  do_check_false(hasFlag(addon2.pendingOperations, AddonManager.PENDING_DISABLE));
+  do_check_true(hasFlag(addon2.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_ENABLE));
+
+  yield promiseRestartManager();
+
+  // After disable both addons and restart we should not block.
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_false(blocked);
+
+  addon = yield promiseAddonByID(ID);
+  addon.userDisabled = false;
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_false(addon.isActive);
+  do_check_true(hasFlag(addon.pendingOperations, AddonManager.PENDING_ENABLE));
+
+  yield promiseRestartManager();
+
+  // After re-enable one addon and restart we should block.
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_true(blocked);
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  do_check_true(addon.isActive);
+  BootstrapMonitor.checkAddonStarted(ID);
+  // Bug 1304392 again (see comment above)
+  do_check_eq(getStartupReason(ID), APP_STARTUP);
+
+  do_check_false(hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_UNINSTALL));
+  addon.uninstall();
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+
+  yield promiseRestartManager();
+
+  // After uninstall the only enabled addon and restart we should not block.
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_false(blocked);
+
+  addon2 = yield promiseAddonByID(ID2);
+  addon2.uninstall();
+
+  restartManager();
+});
+
+// Check that the rollout policy sets work as expected
+add_task(function*() {
+  gAppInfo.browserTabsRemoteAutostart = true;
+  Services.prefs.setBoolPref("extensions.e10sBlocksEnabling", true);
+  Services.prefs.setCharPref("extensions.e10s.rollout.policy", "xpcshell-test");
+
+  // Both 'bootstrap1' and 'bootstrap2' addons are listed in the allowed policy
+  // set, so they should install and start normally.
+  yield check_normal();
+
+  // Check that the two add-ons can be installed together correctly as
+  // check_normal() only perform checks on bootstrap1.
+  let install1 = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), resolve));
+  let install2 = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap2_1"), resolve));
+  yield promiseCompleteAllInstalls([install1, install2]);
+
+  do_check_eq(install1.state, AddonManager.STATE_INSTALLED);
+  do_check_eq(install2.state, AddonManager.STATE_INSTALLED);
+  do_check_false(hasFlag(install1.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+  do_check_false(hasFlag(install2.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+  let addon = yield promiseAddonByID(ID);
+  let addon2 = yield promiseAddonByID(ID2);
+
+  do_check_neq(addon, null);
+  do_check_neq(addon2, null);
+
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonStarted(ID);
+
+  BootstrapMonitor.checkAddonInstalled(ID2);
+  BootstrapMonitor.checkAddonStarted(ID2);
+
+  yield promiseRestartManager();
+
+  // After install and restart e10s should not be blocked.
+  let blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_false(blocked);
+
+  // Check that adding bootstrap2 to the blocklist will trigger a disable of e10s.
+  Services.prefs.setCharPref("extensions.e10s.rollout.blocklist", ID2);
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_true(blocked);
+
+  yield promiseRestartManager();
+
+  // Check that after restarting, e10s continues to be blocked.
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_true(blocked);
+
+  // Check that uninstalling bootstrap2 (which is in the blocklist) will
+  // cause e10s to be re-enabled.
+  addon2 = yield promiseAddonByID(ID2);
+  do_check_false(hasFlag(addon2.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_UNINSTALL));
+  addon2.uninstall();
+  BootstrapMonitor.checkAddonNotStarted(ID2);
+  BootstrapMonitor.checkAddonNotInstalled(ID2);
+
+  yield promiseRestartManager();
+
+  // After uninstall the blocklisted addon and restart we should not block.
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_false(blocked);
+
+
+  // Let's perform similar checks again, now that bootstrap2 is in the blocklist.
+  // The bootstrap1 add-on should install and start correctly, but bootstrap2 should not.
+  addon = yield promiseAddonByID(ID);
+  addon.uninstall();
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+
+  yield promiseRestartManager();
+
+  install1 = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), resolve));
+  install2 = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap2_1"), resolve));
+  yield promiseCompleteAllInstalls([install1, install2]);
+
+  do_check_eq(install1.state, AddonManager.STATE_INSTALLED);
+  do_check_eq(install2.state, AddonManager.STATE_INSTALLED);
+  do_check_false(hasFlag(install1.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+  do_check_true(hasFlag(install2.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+  addon = yield promiseAddonByID(ID);
+  addon2 = yield promiseAddonByID(ID2);
+
+  do_check_neq(addon, null);
+  do_check_eq(addon2, null);
+
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonStarted(ID);
+
+  BootstrapMonitor.checkAddonNotInstalled(ID2);
+  BootstrapMonitor.checkAddonNotStarted(ID2);
+
+  yield promiseRestartManager();
+
+  blocked = Services.prefs.getBoolPref("extensions.e10sBlockedByAddons");
+  do_check_true(blocked);
+
+  // Clean-up
+  addon = yield promiseAddonByID(ID);
+  addon2 = yield promiseAddonByID(ID2);
+
+  addon.uninstall();
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+
+  addon2.uninstall();
+  BootstrapMonitor.checkAddonNotStarted(ID2);
+  BootstrapMonitor.checkAddonNotInstalled(ID2);
+
+  Services.prefs.clearUserPref("extensions.e10s.rollout.policy");
+  Services.prefs.clearUserPref("extensions.e10s.rollout.blocklist");
+
+  yield promiseRestartManager();
+});
+
+// The hotfix is unaffected
+add_task(function*() {
+  gAppInfo.browserTabsRemoteAutostart = true;
+  Services.prefs.setBoolPref("extensions.e10sBlocksEnabling", true);
+  Services.prefs.setCharPref("extensions.hotfix.id", ID);
+  Services.prefs.setBoolPref("extensions.hotfix.cert.checkAttributes", false);
+
+  yield check_normal();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_error.js b/toolkit/mozapps/webextensions/test/xpcshell/test_error.js
new file mode 100644
index 000000000..11a465b55
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_error.js
@@ -0,0 +1,90 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that various error conditions are handled correctly
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+
+  do_test_pending();
+  run_test_1();
+}
+
+// Checks that a local file validates ok
+function run_test_1() {
+  AddonManager.getInstallForFile(do_get_file("data/unsigned.xpi"), function(install) {
+    do_check_neq(install, null);
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_eq(install.error, 0);
+
+    install.cancel();
+
+    run_test_2();
+  });
+}
+
+// Checks that a corrupt file shows an error
+function run_test_2() {
+  AddonManager.getInstallForFile(do_get_file("data/corrupt.xpi"), function(install) {
+    do_check_neq(install, null);
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(install.error, AddonManager.ERROR_CORRUPT_FILE);
+
+    run_test_3();
+  });
+}
+
+// Checks that an empty file shows an error
+function run_test_3() {
+  AddonManager.getInstallForFile(do_get_file("data/empty.xpi"), function(install) {
+    do_check_neq(install, null);
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(install.error, AddonManager.ERROR_CORRUPT_FILE);
+
+    run_test_4();
+  });
+}
+
+// Checks that a file that doesn't match its hash shows an error
+function run_test_4() {
+  let url = Services.io.newFileURI(do_get_file("data/unsigned.xpi")).spec;
+  AddonManager.getInstallForURL(url, function(install) {
+    do_check_neq(install, null);
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(install.error, AddonManager.ERROR_INCORRECT_HASH);
+
+    run_test_5();
+  }, "application/x-xpinstall", "sha1:foo");
+}
+
+// Checks that a file that doesn't exist shows an error
+function run_test_5() {
+  let file = do_get_file("data");
+  file.append("missing.xpi");
+  AddonManager.getInstallForFile(file, function(install) {
+    do_check_neq(install, null);
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(install.error, AddonManager.ERROR_NETWORK_FAILURE);
+
+    run_test_6();
+  });
+}
+
+// Checks that an add-on with an illegal ID shows an error
+function run_test_6() {
+  AddonManager.getInstallForFile(do_get_addon("test_bug567173"), function(install) {
+    do_check_neq(install, null);
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(install.error, AddonManager.ERROR_CORRUPT_FILE);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_experiment.js b/toolkit/mozapps/webextensions/test/xpcshell/test_experiment.js
new file mode 100644
index 000000000..3dcd83da8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_experiment.js
@@ -0,0 +1,131 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var scope = Components.utils.import("resource://gre/modules/addons/XPIProvider.jsm");
+const XPIProvider = scope.XPIProvider;
+const ID = "experiment1@tests.mozilla.org";
+
+var gIsNightly = false;
+
+function run_test() {
+  BootstrapMonitor.init();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+
+  gIsNightly = isNightlyChannel();
+
+  run_next_test();
+}
+
+add_task(function* test_experiment() {
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  yield promiseInstallAllFiles([do_get_addon("test_experiment1")]);
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  let addon = yield promiseAddonByID(ID);
+  Assert.ok(addon, "Addon is found.");
+
+  Assert.ok(addon.userDisabled, "Experiments are userDisabled by default.");
+  Assert.ok(!addon.appDisabled, "Experiments are not appDisabled by compatibility.");
+  Assert.equal(addon.isActive, false, "Add-on is not active.");
+  Assert.equal(addon.updateURL, null, "No updateURL for experiments.");
+  Assert.equal(addon.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DISABLE,
+               "Background updates are disabled.");
+  Assert.equal(addon.permissions, AddonManager.PERM_CAN_UNINSTALL + AddonManager.PERM_CAN_ENABLE,
+               "Permissions are minimal.");
+  Assert.ok(!(addon.pendingOperations & AddonManager.PENDING_ENABLE),
+            "Should not be pending enable");
+  Assert.ok(!(addon.pendingOperations & AddonManager.PENDING_DISABLE),
+            "Should not be pending disable");
+
+  // Setting applyBackgroundUpdates should not work.
+  addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_ENABLE;
+  Assert.equal(addon.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DISABLE,
+               "Setting applyBackgroundUpdates shouldn't do anything.");
+
+  let noCompatibleCalled = false;
+  let noUpdateCalled = false;
+  let finishedCalled = false;
+
+  let listener = {
+    onNoCompatibilityUpdateAvailable: () => { noCompatibleCalled = true; },
+    onNoUpdateAvailable: () => { noUpdateCalled = true; },
+    onUpdateFinished: () => { finishedCalled = true; },
+  };
+
+  addon.findUpdates(listener, "testing", null, null);
+  Assert.ok(noCompatibleCalled, "Listener called.");
+  Assert.ok(noUpdateCalled, "Listener called.");
+  Assert.ok(finishedCalled, "Listener called.");
+});
+
+// Changes to userDisabled should not be persisted to the database.
+add_task(function* test_userDisabledNotPersisted() {
+  let addon = yield promiseAddonByID(ID);
+  Assert.ok(addon, "Add-on is found.");
+  Assert.ok(addon.userDisabled, "Add-on is user disabled.");
+
+  let promise = promiseAddonEvent("onEnabled");
+  addon.userDisabled = false;
+  let [addon2] = yield promise;
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  Assert.equal(addon2.id, addon.id, "Changed add-on matches expected.");
+  Assert.equal(addon2.userDisabled, false, "Add-on is no longer user disabled.");
+  Assert.ok(addon2.isActive, "Add-on is active.");
+
+  Assert.ok(ID in XPIProvider.bootstrappedAddons,
+            "Experiment add-on listed in XPIProvider bootstrapped list.");
+
+  addon = yield promiseAddonByID(ID);
+  Assert.ok(addon, "Add-on retrieved.");
+  Assert.equal(addon.userDisabled, false, "Add-on is still enabled after API retrieve.");
+  Assert.ok(addon.isActive, "Add-on is still active.");
+  Assert.ok(!(addon.pendingOperations & AddonManager.PENDING_ENABLE),
+            "Should not be pending enable");
+  Assert.ok(!(addon.pendingOperations & AddonManager.PENDING_DISABLE),
+            "Should not be pending disable");
+
+  // Now when we restart the manager the add-on should revert state.
+  yield promiseRestartManager();
+  let persisted = JSON.parse(Services.prefs.getCharPref("extensions.bootstrappedAddons"));
+  Assert.ok(!(ID in persisted),
+            "Experiment add-on not persisted to bootstrappedAddons.");
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  addon = yield promiseAddonByID(ID);
+  Assert.ok(addon, "Add-on retrieved.");
+  Assert.ok(addon.userDisabled, "Add-on is disabled after restart.");
+  Assert.equal(addon.isActive, false, "Add-on is not active after restart.");
+  addon.uninstall();
+
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+});
+
+add_task(function* test_checkCompatibility() {
+  if (gIsNightly)
+    Services.prefs.setBoolPref("extensions.checkCompatibility.nightly", false);
+  else
+    Services.prefs.setBoolPref("extensions.checkCompatibility.1", false);
+
+  yield promiseRestartManager();
+
+  yield promiseInstallAllFiles([do_get_addon("test_experiment1")]);
+  let addon = yield promiseAddonByID(ID);
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  Assert.ok(addon, "Add-on is found.");
+  Assert.ok(addon.userDisabled, "Add-on is user disabled.");
+  Assert.ok(!addon.appDisabled, "Add-on is not app disabled.");
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_ext_management.js b/toolkit/mozapps/webextensions/test/xpcshell/test_ext_management.js
new file mode 100644
index 000000000..a3b3f477c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_ext_management.js
@@ -0,0 +1,137 @@
+"use strict";
+
+add_task(function* setup() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "48", "48");
+  startupManager();
+});
+
+/* eslint-disable no-undef */
+// Shared background function for getSelf tests
+function backgroundGetSelf() {
+  browser.management.getSelf().then(extInfo => {
+    browser.test.sendMessage("management-getSelf", extInfo);
+  }, error => {
+    browser.test.notifyFail(`getSelf rejected with error: ${error}`);
+  });
+}
+/* eslint-enable no-undef */
+
+add_task(function* test_management_get_self_complete() {
+  const id = "get_self_test_complete@tests.mozilla.com";
+  const permissions = ["management", "cookies"];
+  const hostPermissions = ["*://example.org/", "https://foo.example.org/"];
+
+  let manifest = {
+    applications: {
+      gecko: {
+        id,
+        update_url: "https://updates.mozilla.com/",
+      },
+    },
+    name: "test extension name",
+    short_name: "test extension short name",
+    description: "test extension description",
+    version: "1.0",
+    homepage_url: "http://www.example.com/",
+    options_ui: {
+      "page": "get_self_options.html",
+    },
+    icons: {
+      "16": "icons/icon-16.png",
+      "48": "icons/icon-48.png",
+    },
+    permissions: [...permissions, ...hostPermissions],
+  };
+
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest,
+    background: backgroundGetSelf,
+    useAddonManager: "temporary",
+  });
+  yield extension.startup();
+  let extInfo = yield extension.awaitMessage("management-getSelf");
+
+  equal(extInfo.id, id, "getSelf returned the expected id");
+  equal(extInfo.installType, "development", "getSelf returned the expected installType");
+  for (let prop of ["name", "description", "version"]) {
+    equal(extInfo[prop], manifest[prop], `getSelf returned the expected ${prop}`);
+  }
+  equal(extInfo.shortName, manifest.short_name, "getSelf returned the expected shortName");
+  equal(extInfo.mayDisable, true, "getSelf returned the expected value for mayDisable");
+  equal(extInfo.enabled, true, "getSelf returned the expected value for enabled");
+  equal(extInfo.homepageUrl, manifest.homepage_url, "getSelf returned the expected homepageUrl");
+  equal(extInfo.updateUrl, manifest.applications.gecko.update_url, "getSelf returned the expected updateUrl");
+  ok(extInfo.optionsUrl.endsWith(manifest.options_ui.page), "getSelf returned the expected optionsUrl");
+  for (let [index, size] of Object.keys(manifest.icons).sort().entries()) {
+    equal(extInfo.icons[index].size, +size, "getSelf returned the expected icon size");
+    equal(extInfo.icons[index].url, manifest.icons[size], "getSelf returned the expected icon url");
+  }
+  deepEqual(extInfo.permissions.sort(), permissions.sort(), "getSelf returned the expected permissions");
+  deepEqual(extInfo.hostPermissions.sort(), hostPermissions.sort(), "getSelf returned the expected hostPermissions");
+  equal(extInfo.installType, "development", "getSelf returned the expected installType");
+  yield extension.unload();
+});
+
+add_task(function* test_management_get_self_minimal() {
+  const id = "get_self_test_minimal@tests.mozilla.com";
+
+  let manifest = {
+    applications: {
+      gecko: {
+        id,
+      },
+    },
+    name: "test extension name",
+    version: "1.0",
+  };
+
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest,
+    background: backgroundGetSelf,
+    useAddonManager: "temporary",
+  });
+  yield extension.startup();
+  let extInfo = yield extension.awaitMessage("management-getSelf");
+
+  equal(extInfo.id, id, "getSelf returned the expected id");
+  equal(extInfo.installType, "development", "getSelf returned the expected installType");
+  for (let prop of ["name", "version"]) {
+    equal(extInfo[prop], manifest[prop], `getSelf returned the expected ${prop}`);
+  }
+  for (let prop of ["shortName", "description", "optionsUrl"]) {
+    equal(extInfo[prop], "", `getSelf returned the expected ${prop}`);
+  }
+  for (let prop of ["homepageUrl", " updateUrl", "icons"]) {
+    equal(Reflect.getOwnPropertyDescriptor(extInfo, prop), undefined, `getSelf did not return a ${prop} property`);
+  }
+  for (let prop of ["permissions", "hostPermissions"]) {
+    deepEqual(extInfo[prop], [], `getSelf returned the expected ${prop}`);
+  }
+  yield extension.unload();
+});
+
+add_task(function* test_management_get_self_permanent() {
+  const id = "get_self_test_permanent@tests.mozilla.com";
+
+  let manifest = {
+    applications: {
+      gecko: {
+        id,
+      },
+    },
+    name: "test extension name",
+    version: "1.0",
+  };
+
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest,
+    background: backgroundGetSelf,
+    useAddonManager: "permanent",
+  });
+  yield extension.startup();
+  let extInfo = yield extension.awaitMessage("management-getSelf");
+
+  equal(extInfo.id, id, "getSelf returned the expected id");
+  equal(extInfo.installType, "normal", "getSelf returned the expected installType");
+  yield extension.unload();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_filepointer.js b/toolkit/mozapps/webextensions/test/xpcshell/test_filepointer.js
new file mode 100644
index 000000000..406489e40
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_filepointer.js
@@ -0,0 +1,403 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that various operations with file pointers work and do not affect the
+// source files
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon1_2 = {
+  id: "addon1@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+profileDir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+
+const sourceDir = gProfD.clone();
+sourceDir.append("source");
+
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver;
+
+function writePointer(aId, aName) {
+  let file = profileDir.clone();
+  file.append(aName ? aName : aId);
+
+  let target = sourceDir.clone();
+  target.append(do_get_expected_addon_name(aId));
+
+  var fos = AM_Cc["@mozilla.org/network/file-output-stream;1"].
+            createInstance(AM_Ci.nsIFileOutputStream);
+  fos.init(file,
+           FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE | FileUtils.MODE_TRUNCATE,
+           FileUtils.PERMS_FILE, 0);
+  fos.write(target.path, target.path.length);
+  fos.close();
+}
+
+function writeRelativePointer(aId, aName) {
+  let file = profileDir.clone();
+  file.append(aName ? aName : aId);
+
+  let absTarget = sourceDir.clone();
+  absTarget.append(do_get_expected_addon_name(aId));
+
+  var relTarget = absTarget.getRelativeDescriptor(profileDir);
+
+  var fos = AM_Cc["@mozilla.org/network/file-output-stream;1"].
+            createInstance(AM_Ci.nsIFileOutputStream);
+  fos.init(file,
+           FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE | FileUtils.MODE_TRUNCATE,
+           FileUtils.PERMS_FILE, 0);
+  fos.write(relTarget, relTarget.length);
+  fos.close();
+}
+
+function run_test() {
+  // pointer files only work with unpacked directories
+  if (Services.prefs.getBoolPref("extensions.alwaysUnpack") == false)
+    return;
+
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  // Create and configure the HTTP server.
+  testserver = new HttpServer();
+  testserver.registerDirectory("/data/", do_get_file("data"));
+  testserver.registerDirectory("/addons/", do_get_file("addons"));
+  testserver.start(-1);
+  gPort = testserver.identity.primaryPort;
+
+  run_test_1();
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+// Tests that installing a new add-on by pointer works
+function run_test_1() {
+  writeInstallRDFForExtension(addon1, sourceDir);
+  writePointer(addon1.id);
+
+  startupManager();
+
+  AddonManager.getAddonByID(addon1.id, function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+
+    let file = a1.getResourceURI().QueryInterface(AM_Ci.nsIFileURL).file;
+    do_check_eq(file.parent.path, sourceDir.path);
+
+    let rootUri = do_get_addon_root_uri(sourceDir, addon1.id);
+    let uri = a1.getResourceURI("/");
+    do_check_eq(uri.spec, rootUri);
+    uri = a1.getResourceURI("install.rdf");
+    do_check_eq(uri.spec, rootUri + "install.rdf");
+
+    // Check that upgrade is disabled for addons installed by file-pointers.
+    do_check_eq(a1.permissions & AddonManager.PERM_CAN_UPGRADE, 0);
+    run_test_2();
+  });
+}
+
+// Tests that installing the addon from some other source doesn't clobber
+// the original sources
+function run_test_2() {
+  prepare_test({}, [
+    "onNewInstall",
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_filepointer.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        "onInstalling"
+      ]
+    }, [
+      "onDownloadStarted",
+      "onDownloadEnded",
+      "onInstallStarted",
+      "onInstallEnded"
+    ], callback_soon(check_test_2));
+
+    install.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_2() {
+  restartManager();
+
+  AddonManager.getAddonByID(addon1.id, function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "2.0");
+
+    let file = a1.getResourceURI().QueryInterface(AM_Ci.nsIFileURL).file;
+    do_check_eq(file.parent.path, profileDir.path);
+
+    let rootUri = do_get_addon_root_uri(profileDir, addon1.id);
+    let uri = a1.getResourceURI("/");
+    do_check_eq(uri.spec, rootUri);
+    uri = a1.getResourceURI("install.rdf");
+    do_check_eq(uri.spec, rootUri + "install.rdf");
+
+    let source = sourceDir.clone();
+    source.append(addon1.id);
+    do_check_true(source.exists());
+
+    a1.uninstall();
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Tests that uninstalling doesn't clobber the original sources
+function run_test_3() {
+  restartManager();
+
+  writePointer(addon1.id);
+
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+
+    a1.uninstall();
+
+    restartManager();
+
+    let source = sourceDir.clone();
+    source.append(addon1.id);
+    do_check_true(source.exists());
+
+    do_execute_soon(run_test_4);
+  }));
+}
+
+// Tests that misnaming a pointer doesn't clobber the sources
+function run_test_4() {
+  writePointer("addon2@tests.mozilla.org", addon1.id);
+
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org"], function([a1, a2]) {
+    do_check_eq(a1, null);
+    do_check_eq(a2, null);
+
+    let source = sourceDir.clone();
+    source.append(addon1.id);
+    do_check_true(source.exists());
+
+    let pointer = profileDir.clone();
+    pointer.append("addon2@tests.mozilla.org");
+    do_check_false(pointer.exists());
+
+    do_execute_soon(run_test_5);
+  });
+}
+
+// Tests that changing the ID of an existing add-on doesn't clobber the sources
+function run_test_5() {
+  var dest = writeInstallRDFForExtension(addon1, sourceDir);
+  // Make sure the modification time changes enough to be detected.
+  setExtensionModifiedTime(dest, dest.lastModifiedTime - 5000);
+  writePointer(addon1.id);
+
+  restartManager();
+
+  AddonManager.getAddonByID(addon1.id, callback_soon(function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+
+    writeInstallRDFForExtension(addon2, sourceDir, addon1.id);
+
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon2@tests.mozilla.org"], function([a1_2, a2_2]) {
+      do_check_eq(a1_2, null);
+      do_check_eq(a2_2, null);
+
+      let source = sourceDir.clone();
+      source.append(addon1.id);
+      do_check_true(source.exists());
+
+      let pointer = profileDir.clone();
+      pointer.append(addon1.id);
+      do_check_false(pointer.exists());
+
+      do_execute_soon(run_test_6);
+    });
+  }));
+}
+
+// Removing the pointer file should uninstall the add-on
+function run_test_6() {
+  var dest = writeInstallRDFForExtension(addon1, sourceDir);
+  // Make sure the modification time changes enough to be detected in run_test_8.
+  setExtensionModifiedTime(dest, dest.lastModifiedTime - 5000);
+  writePointer(addon1.id);
+
+  restartManager();
+
+  AddonManager.getAddonByID(addon1.id, callback_soon(function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+
+    let pointer = profileDir.clone();
+    pointer.append(addon1.id);
+    pointer.remove(false);
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1_2) {
+      do_check_eq(a1_2, null);
+
+      do_execute_soon(run_test_7);
+    });
+  }));
+}
+
+// Removing the pointer file and replacing it with a directory should work
+function run_test_7() {
+  writePointer(addon1.id);
+
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+
+    let pointer = profileDir.clone();
+    pointer.append(addon1.id);
+    pointer.remove(false);
+
+    writeInstallRDFForExtension(addon1_2, profileDir);
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1_2) {
+      do_check_neq(a1_2, null);
+      do_check_eq(a1_2.version, "2.0");
+
+      a1_2.uninstall();
+
+      do_execute_soon(run_test_8);
+    });
+  }));
+}
+
+// Changes to the source files should be detected
+function run_test_8() {
+  restartManager();
+
+  writePointer(addon1.id);
+
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+
+    writeInstallRDFForExtension(addon1_2, sourceDir);
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1_2) {
+      do_check_neq(a1_2, null);
+      do_check_eq(a1_2.version, "2.0");
+
+      a1_2.uninstall();
+
+      do_execute_soon(run_test_9);
+    });
+  }));
+}
+
+// Removing the add-on the pointer file points at should uninstall the add-on
+function run_test_9() {
+  restartManager();
+
+  var dest = writeInstallRDFForExtension(addon1, sourceDir);
+  writePointer(addon1.id);
+
+  restartManager();
+
+  AddonManager.getAddonByID(addon1.id, callback_soon(function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+
+    dest.remove(true);
+
+    restartManager();
+
+    AddonManager.getAddonByID(addon1.id, function(a1_2) {
+      do_check_eq(a1_2, null);
+
+      let pointer = profileDir.clone();
+      pointer.append(addon1.id);
+      do_check_false(pointer.exists());
+
+      do_execute_soon(run_test_10);
+    });
+  }));
+}
+
+// Tests that installing a new add-on by pointer with a relative path works
+function run_test_10() {
+  writeInstallRDFForExtension(addon1, sourceDir);
+  writeRelativePointer(addon1.id);
+
+  restartManager();
+
+  AddonManager.getAddonByID(addon1.id, function(a1) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.version, "1.0");
+
+    let file = a1.getResourceURI().QueryInterface(AM_Ci.nsIFileURL).file;
+    do_check_eq(file.parent.path, sourceDir.path);
+
+    let rootUri = do_get_addon_root_uri(sourceDir, addon1.id);
+    let uri = a1.getResourceURI("/");
+    do_check_eq(uri.spec, rootUri);
+    uri = a1.getResourceURI("install.rdf");
+    do_check_eq(uri.spec, rootUri + "install.rdf");
+
+    // Check that upgrade is disabled for addons installed by file-pointers.
+    do_check_eq(a1.permissions & AddonManager.PERM_CAN_UPGRADE, 0);
+    end_test();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_fuel.js b/toolkit/mozapps/webextensions/test/xpcshell/test_fuel.js
new file mode 100644
index 000000000..0c3035f76
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_fuel.js
@@ -0,0 +1,165 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+// This just verifies that FUEL integrates to the add-ons manager
+
+var testdata = {
+  dummyid: "fuel-dummy-extension@mozilla.org",
+  dummyname: "Dummy Extension",
+  inspectorid: "addon1@tests.mozilla.org",
+  inspectorname: "Test Addon",
+  missing: "fuel.fuel-test-missing",
+  dummy: "fuel.fuel-test"
+};
+
+var Application = null
+
+function run_test() {
+  var cm = AM_Cc["@mozilla.org/categorymanager;1"].
+           getService(AM_Ci.nsICategoryManager);
+
+  try {
+    var contract = cm.getCategoryEntry("JavaScript-global-privileged-property",
+                                       "Application");
+    Application = AM_Cc[contract].getService(AM_Ci.extIApplication);
+  }
+  catch (e) {
+    // This application does not include a FUEL variant.
+    return;
+  }
+
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  const profileDir = gProfD.clone();
+  profileDir.append("extensions");
+
+  writeInstallRDFForExtension({
+    id: "addon1@tests.mozilla.org",
+    version: "1.0",
+    name: "Test Addon",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+  }, profileDir);
+
+  startupManager();
+
+  Application.getExtensions(function(extensions) {
+    // test to see if the extensions object is available
+    do_check_neq(extensions, null);
+
+    // test to see if a non-existant extension exists
+    do_check_true(!extensions.has(testdata.dummyid));
+
+    // test to see if an extension exists
+    do_check_true(extensions.has(testdata.inspectorid));
+
+    var inspector = extensions.get(testdata.inspectorid);
+    do_check_eq(inspector.id, testdata.inspectorid);
+    do_check_eq(inspector.name, testdata.inspectorname);
+    do_check_eq(inspector.version, "1.0");
+    do_check_true(inspector.firstRun, true);
+    do_check_true(inspector.enabled);
+
+    // test to see if extension find works
+    do_check_eq(extensions.all.length, 1);
+    // STORAGE TESTING
+    // Make sure the we are given the same extension (cached) so things like .storage work right
+    inspector.storage.set("test", "simple check");
+    do_check_true(inspector.storage.has("test"));
+
+    var inspector2 = extensions.get(testdata.inspectorid);
+    do_check_eq(inspector2.id, testdata.inspectorid);
+    do_check_true(inspector.storage.has("test"));
+    do_check_eq(inspector2.storage.get("test", "cache"), inspector.storage.get("test", "original"));
+
+    inspector.events.addListener("disable", onGenericEvent);
+    inspector.events.addListener("enable", onGenericEvent);
+    inspector.events.addListener("uninstall", onGenericEvent);
+    inspector.events.addListener("cancel", onGenericEvent);
+
+    AddonManager.getAddonByID(testdata.inspectorid, function(a) {
+      a.userDisabled = true;
+
+      do_check_eq(gLastEvent, "disable");
+
+      // enabling after a disable will only fire a 'cancel' event
+      // see - http://mxr.mozilla.org/seamonkey/source/toolkit/mozapps/extensions/src/nsExtensionManager.js.in#5216
+      a.userDisabled = false;
+      do_check_eq(gLastEvent, "cancel");
+
+      a.uninstall();
+      do_check_eq(gLastEvent, "uninstall");
+
+      a.cancelUninstall();
+      do_check_eq(gLastEvent, "cancel");
+
+      // PREF TESTING
+      // Reset the install event preference, so that we can test it again later
+      // inspector.prefs.get("install-event-fired").reset();
+
+      // test the value of the preference root
+      do_check_eq(extensions.all[0].prefs.root, "extensions.addon1@tests.mozilla.org.");
+
+      // test getting nonexistent values
+      var itemValue = inspector.prefs.getValue(testdata.missing, "default");
+      do_check_eq(itemValue, "default");
+
+      do_check_eq(inspector.prefs.get(testdata.missing), null);
+
+      // test setting and getting a value
+      inspector.prefs.setValue(testdata.dummy, "dummy");
+      itemValue = inspector.prefs.getValue(testdata.dummy, "default");
+      do_check_eq(itemValue, "dummy");
+
+      // test for overwriting an existing value
+      inspector.prefs.setValue(testdata.dummy, "smarty");
+      itemValue = inspector.prefs.getValue(testdata.dummy, "default");
+      do_check_eq(itemValue, "smarty");
+
+      // test setting and getting a value
+      inspector.prefs.get(testdata.dummy).value = "dummy2";
+      itemValue = inspector.prefs.get(testdata.dummy).value;
+      do_check_eq(itemValue, "dummy2");
+
+      // test resetting a pref [since there is no default value, the pref should disappear]
+      inspector.prefs.get(testdata.dummy).reset();
+      itemValue = inspector.prefs.getValue(testdata.dummy, "default");
+      do_check_eq(itemValue, "default");
+
+      // test to see if a non-existant property exists
+      do_check_true(!inspector.prefs.has(testdata.dummy));
+
+      inspector.prefs.events.addListener("change", onPrefChange);
+      inspector.prefs.setValue("fuel.fuel-test", "change event");
+    });
+  });
+}
+
+var gLastEvent;
+function onGenericEvent(event) {
+  gLastEvent = event.type;
+}
+
+function onPrefChange(evt) {
+  Application.getExtensions(function(extensions) {
+    var inspector3 = extensions.get(testdata.inspectorid);
+
+    do_check_eq(evt.data, testdata.dummy);
+    inspector3.prefs.events.removeListener("change", onPrefChange);
+
+    inspector3.prefs.get("fuel.fuel-test").events.addListener("change", onPrefChange2);
+    inspector3.prefs.setValue("fuel.fuel-test", "change event2");
+  });
+}
+
+function onPrefChange2(evt) {
+  do_check_eq(evt.data, testdata.dummy);
+
+  do_execute_soon(do_test_finished);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_general.js b/toolkit/mozapps/webextensions/test/xpcshell/test_general.js
new file mode 100644
index 000000000..e69b13314
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_general.js
@@ -0,0 +1,58 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This just verifies that the EM can actually startup and shutdown a few times
+// without any errors
+
+// We have to look up how many add-ons are present since there will be plugins
+// etc. detected
+var gCount;
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  var count = 0;
+  startupManager();
+  AddonManager.getAddonsByTypes(null, function(list) {
+    gCount = list.length;
+
+    do_execute_soon(run_test_1);
+  });
+}
+
+function run_test_1() {
+  restartManager();
+
+  AddonManager.getAddonsByTypes(null, function(addons) {
+    do_check_eq(gCount, addons.length);
+
+    AddonManager.getAddonsWithOperationsByTypes(null, function(pendingAddons) {
+      do_check_eq(0, pendingAddons.length);
+
+      do_execute_soon(run_test_2);
+    });
+  });
+}
+
+function run_test_2() {
+  shutdownManager();
+
+  startupManager(false);
+
+  AddonManager.getAddonsByTypes(null, function(addons) {
+    do_check_eq(gCount, addons.length);
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+function run_test_3() {
+  restartManager();
+
+  AddonManager.getAddonsByTypes(null, callback_soon(function(addons) {
+    do_check_eq(gCount, addons.length);
+    do_test_finished();
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_getresource.js b/toolkit/mozapps/webextensions/test/xpcshell/test_getresource.js
new file mode 100644
index 000000000..c83638d54
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_getresource.js
@@ -0,0 +1,94 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// install.rdf size, icon.png size, subfile.txt size
+const ADDON_SIZE = 672 + 15 + 26;
+
+// This verifies the functionality of getResourceURI
+// There are two cases - with a filename it returns an nsIFileURL to the filename
+// and with no parameters, it returns an nsIFileURL to the root of the addon
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  startupManager();
+
+  AddonManager.getInstallForFile(do_get_addon("test_getresource"), function(aInstall) {
+    do_check_true(aInstall.addon.hasResource("install.rdf"));
+    do_check_eq(aInstall.addon.getResourceURI().spec, aInstall.sourceURI.spec);
+
+    do_check_true(aInstall.addon.hasResource("icon.png"));
+    do_check_eq(aInstall.addon.getResourceURI("icon.png").spec,
+                "jar:" + aInstall.sourceURI.spec + "!/icon.png");
+
+    do_check_false(aInstall.addon.hasResource("missing.txt"));
+
+    do_check_true(aInstall.addon.hasResource("subdir/subfile.txt"));
+    do_check_eq(aInstall.addon.getResourceURI("subdir/subfile.txt").spec,
+                "jar:" + aInstall.sourceURI.spec + "!/subdir/subfile.txt");
+
+    do_check_false(aInstall.addon.hasResource("subdir/missing.txt"));
+
+    do_check_eq(aInstall.addon.size, ADDON_SIZE);
+
+    completeAllInstalls([aInstall], function() {
+      restartManager();
+      AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+        do_check_neq(a1, null);
+
+        let addonDir = gProfD.clone();
+        addonDir.append("extensions");
+        let rootUri = do_get_addon_root_uri(addonDir, "addon1@tests.mozilla.org");
+
+        let uri = a1.getResourceURI("/");
+        do_check_eq(uri.spec, rootUri);
+
+        let file = rootUri + "install.rdf";
+        do_check_true(a1.hasResource("install.rdf"));
+        uri = a1.getResourceURI("install.rdf")
+        do_check_eq(uri.spec, file);
+
+        file = rootUri + "icon.png";
+        do_check_true(a1.hasResource("icon.png"));
+        uri = a1.getResourceURI("icon.png")
+        do_check_eq(uri.spec, file);
+
+        do_check_false(a1.hasResource("missing.txt"));
+
+        file = rootUri + "subdir/subfile.txt";
+        do_check_true(a1.hasResource("subdir/subfile.txt"));
+        uri = a1.getResourceURI("subdir/subfile.txt")
+        do_check_eq(uri.spec, file);
+
+        do_check_false(a1.hasResource("subdir/missing.txt"));
+
+        do_check_eq(a1.size, ADDON_SIZE);
+
+        a1.uninstall();
+
+        try {
+          // hasResource should never throw an exception.
+          do_check_false(a1.hasResource("icon.png"));
+        } catch (e) {
+          do_check_true(false);
+        }
+
+        AddonManager.getInstallForFile(do_get_addon("test_getresource"),
+            callback_soon(function(aInstall_2) {
+          do_check_false(a1.hasResource("icon.png"));
+          do_check_true(aInstall_2.addon.hasResource("icon.png"));
+
+          restartManager();
+
+          AddonManager.getAddonByID("addon1@tests.mozilla.org", function(newa1) {
+            do_check_eq(newa1, null);
+
+            do_execute_soon(do_test_finished);
+          });
+        }));
+      });
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Device.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Device.js
new file mode 100644
index 000000000..9b0eb54a7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Device.js
@@ -0,0 +1,96 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which differs only on device ID, but otherwise
+// exactly matches the blacklist entry, is not blocked.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x9876");
+      gfxInfo.spoofDriverVersion("8.52.322.2201");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x9876");
+      break;
+    case "Darwin":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x9876");
+      gfxInfo.spoofOSVersion(0x1090);
+      break;
+    case "Android":
+      gfxInfo.spoofVendorID("abcd");
+      gfxInfo.spoofDeviceID("aabb");
+      gfxInfo.spoofDriverVersion("5");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_CANVAS2D_ACCELERATION);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_DriverNew.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_DriverNew.js
new file mode 100644
index 000000000..f8b783ff2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_DriverNew.js
@@ -0,0 +1,92 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a new-enough driver bypasses the blacklist, even if the rest of
+// the attributes match the blacklist entry.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.2202");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      // We don't support driver versions on Linux.
+      do_test_finished();
+      return;
+    case "Darwin":
+      // We don't support driver versions on Darwin.
+      do_test_finished();
+      return;
+    case "Android":
+      gfxInfo.spoofVendorID("abcd");
+      gfxInfo.spoofDeviceID("wxyz");
+      gfxInfo.spoofDriverVersion("6");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Equal_DriverNew.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Equal_DriverNew.js
new file mode 100644
index 000000000..1b3410e87
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Equal_DriverNew.js
@@ -0,0 +1,123 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which is newer than the equal
+// blacklist entry is allowed.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xdcdc");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.1112");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      // We don't support driver versions on Linux.
+      do_test_finished();
+      return;
+    case "Darwin":
+      // We don't support driver versions on OS X.
+      do_test_finished();
+      return;
+    case "Android":
+      gfxInfo.spoofVendorID("dcdc");
+      gfxInfo.spoofDeviceID("uiop");
+      gfxInfo.spoofDriverVersion("6");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "15.0", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    // Make sure unrelated features aren't affected
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_11_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_OPENGL_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_11_ANGLE);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_HARDWARE_VIDEO_DECODING);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBRTC_HW_ACCELERATION);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBRTC_HW_ACCELERATION_DECODE);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBRTC_HW_ACCELERATION_ENCODE);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBGL_MSAA);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBGL_ANGLE);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_CANVAS2D_ACCELERATION);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Equal_DriverOld.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Equal_DriverOld.js
new file mode 100644
index 000000000..248c9e7f6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Equal_DriverOld.js
@@ -0,0 +1,93 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which is older than the equal
+// blacklist entry is correctly allowed.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xdcdc");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.1110");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      // We don't support driver versions on Linux.
+      do_test_finished();
+      return;
+    case "Darwin":
+      // We don't support driver versions on Darwin.
+      do_test_finished();
+      return;
+    case "Android":
+      gfxInfo.spoofVendorID("dcdc");
+      gfxInfo.spoofDeviceID("uiop");
+      gfxInfo.spoofDriverVersion("4");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    // Make sure unrelated features aren't affected
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Equal_OK.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Equal_OK.js
new file mode 100644
index 000000000..8b8928bb8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Equal_OK.js
@@ -0,0 +1,93 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which exactly matches the equal
+// blacklist entry is successfully blocked.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xdcdc");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.1111");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      // We don't support driver versions on Linux.
+      do_test_finished();
+      return;
+    case "Darwin":
+      // We don't support driver versions on Darwin.
+      do_test_finished();
+      return;
+    case "Android":
+      gfxInfo.spoofVendorID("dcdc");
+      gfxInfo.spoofDeviceID("uiop");
+      gfxInfo.spoofDriverVersion("5");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    // Make sure unrelated features aren't affected
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_GTE_DriverOld.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_GTE_DriverOld.js
new file mode 100644
index 000000000..bd5858023
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_GTE_DriverOld.js
@@ -0,0 +1,93 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which is lower than the greater-than-or-equal
+// blacklist entry is allowed.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xabab");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.2201");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      // We don't support driver versions on Linux.
+      do_test_finished();
+      return;
+    case "Darwin":
+      // We don't support driver versions on Darwin.
+      do_test_finished();
+      return;
+    case "Android":
+      gfxInfo.spoofVendorID("abab");
+      gfxInfo.spoofDeviceID("ghjk");
+      gfxInfo.spoofDriverVersion("6");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    // Make sure unrelated features aren't affected
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_GTE_OK.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_GTE_OK.js
new file mode 100644
index 000000000..b5c5ed2a6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_GTE_OK.js
@@ -0,0 +1,93 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which exactly matches the greater-than-or-equal
+// blacklist entry is successfully blocked.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xabab");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.2202");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      // We don't support driver versions on Linux.
+      do_test_finished();
+      return;
+    case "Darwin":
+      // We don't support driver versions on Darwin.
+      do_test_finished();
+      return;
+    case "Android":
+      gfxInfo.spoofVendorID("abab");
+      gfxInfo.spoofDeviceID("ghjk");
+      gfxInfo.spoofDriverVersion("7");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    // Make sure unrelated features aren't affected
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_No_Comparison.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_No_Comparison.js
new file mode 100644
index 000000000..ff37e6676
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_No_Comparison.js
@@ -0,0 +1,89 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which exactly matches the blacklist entry is
+// successfully blocked.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  gfxInfo.spoofVendorID("0xabcd");
+  gfxInfo.spoofDeviceID("0x6666");
+
+  // Spoof the OS version so it matches the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      break;
+    case "Darwin":
+      gfxInfo.spoofOSVersion(0x1090);
+      break;
+    case "Android":
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var driverVersion = gfxInfo.adapterDriverVersion;
+    if (driverVersion) {
+      var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+      do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DEVICE);
+
+      // Make sure unrelated features aren't affected
+      status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+      do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+    }
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OK.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OK.js
new file mode 100644
index 000000000..72b2a2bdc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OK.js
@@ -0,0 +1,94 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which exactly matches the blacklist entry is
+// successfully blocked.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.2201");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      break;
+    case "Darwin":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofOSVersion(0x1090);
+      break;
+    case "Android":
+      gfxInfo.spoofVendorID("abcd");
+      gfxInfo.spoofDeviceID("asdf");
+      gfxInfo.spoofDriverVersion("5");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    // Make sure unrelated features aren't affected
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OS.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OS.js
new file mode 100644
index 000000000..fa0deb19a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OS.js
@@ -0,0 +1,93 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which differs only on OS version, but otherwise
+// exactly matches the blacklist entry, is not blocked.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.2201");
+      // Windows Vista
+      gfxInfo.spoofOSVersion(0x60000);
+      break;
+    case "Linux":
+      // We don't have any OS versions on Linux, just "Linux".
+      do_test_finished();
+      return;
+    case "Darwin":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofOSVersion(0x1080);
+      break;
+    case "Android":
+      // On Android, the driver version is used as the OS version (because
+      // there's so many of them).
+      do_test_finished();
+      return;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OSVersion_match.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OSVersion_match.js
new file mode 100644
index 000000000..f01329b45
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OSVersion_match.js
@@ -0,0 +1,95 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether new OS versions are matched properly.
+// Uses test_gfxBlacklist_OS.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist_OSVersion.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  gfxInfo.spoofDriverVersion("8.52.322.2201");
+  gfxInfo.spoofVendorID("0xabcd");
+  gfxInfo.spoofDeviceID("0x1234");
+
+  // Spoof the version of the OS appropriately to test the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      // Windows 8
+      gfxInfo.spoofOSVersion(0x60002);
+      break;
+    case "Linux":
+      // We don't have any OS versions on Linux, just "Linux".
+      do_test_finished();
+      return;
+    case "Darwin":
+      // Mountain Lion
+      gfxInfo.spoofOSVersion(0x1090);
+      break;
+    case "Android":
+      // On Android, the driver version is used as the OS version (because
+      // there's so many of them).
+      do_test_finished();
+      return;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    if (get_platform() == "WINNT") {
+      var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+      do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+    } else if (get_platform() == "Darwin") {
+      status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_OPENGL_LAYERS);
+      do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+    }
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist_OSVersion.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OSVersion_mismatch_DriverVersion.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OSVersion_mismatch_DriverVersion.js
new file mode 100644
index 000000000..4b1069dc6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OSVersion_mismatch_DriverVersion.js
@@ -0,0 +1,95 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether blocklists specifying new OSeswcorrectly don't block if driver
+// versions are appropriately up-to-date.
+// Uses test_gfxBlacklist_OS.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist_OSVersion.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  gfxInfo.spoofDriverVersion("8.52.322.2202");
+  gfxInfo.spoofVendorID("0xabcd");
+  gfxInfo.spoofDeviceID("0x1234");
+
+  // Spoof the version of the OS appropriately to test the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      // Windows 8
+      gfxInfo.spoofOSVersion(0x60002);
+      break;
+    case "Linux":
+      // We don't have any OS versions on Linux, just "Linux".
+      do_test_finished();
+      return;
+    case "Darwin":
+      gfxInfo.spoofOSVersion(0x1080);
+      break;
+    case "Android":
+      // On Android, the driver version is used as the OS version (because
+      // there's so many of them).
+      do_test_finished();
+      return;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    if (get_platform() == "WINNT") {
+      var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+      do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+    } else if (get_platform() == "Darwin") {
+      status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_OPENGL_LAYERS);
+      do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+    }
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist_OSVersion.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OSVersion_mismatch_OSVersion.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OSVersion_mismatch_OSVersion.js
new file mode 100644
index 000000000..0c5a0dcb7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_OSVersion_mismatch_OSVersion.js
@@ -0,0 +1,96 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether old OS versions are not matched when the blacklist contains
+// only new OS versions.
+// Uses test_gfxBlacklist_OS.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist_OSVersion.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  gfxInfo.spoofDriverVersion("8.52.322.2201");
+  gfxInfo.spoofVendorID("0xabcd");
+  gfxInfo.spoofDeviceID("0x1234");
+
+  // Spoof the version of the OS appropriately to test the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      // We don't have any OS versions on Linux, just "Linux".
+      do_test_finished();
+      return;
+    case "Darwin":
+      // Lion
+      gfxInfo.spoofOSVersion(0x1080);
+      break;
+    case "Android":
+      // On Android, the driver version is used as the OS version (because
+      // there's so many of them).
+      do_test_finished();
+      return;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    if (get_platform() == "WINNT") {
+      var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+      do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+    } else if (get_platform() == "Darwin") {
+      status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_OPENGL_LAYERS);
+      do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+    }
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist_OSVersion.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Vendor.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Vendor.js
new file mode 100644
index 000000000..868c48149
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Vendor.js
@@ -0,0 +1,93 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This should eventually be moved to head_addons.js
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which differs only on vendor, but otherwise
+// exactly matches the blacklist entry, is not blocked.
+// Uses test_gfxBlacklist.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xdcba");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.2201");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      gfxInfo.spoofVendorID("0xdcba");
+      gfxInfo.spoofDeviceID("0x1234");
+      break;
+    case "Darwin":
+      gfxInfo.spoofVendorID("0xdcba");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofOSVersion(0x1090);
+      break;
+    case "Android":
+      gfxInfo.spoofVendorID("dcba");
+      gfxInfo.spoofDeviceID("asdf");
+      gfxInfo.spoofDriverVersion("5");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Version.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Version.js
new file mode 100644
index 000000000..48174b772
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_Version.js
@@ -0,0 +1,145 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
+
+// Test whether a machine which exactly matches the blacklist entry is
+// successfully blocked.
+// Uses test_gfxBlacklist_AllOS.xml
+
+Cu.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist_AllOS.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Cc["@mozilla.org/xre/app-info;1"]
+                             .getService(Ci.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.2201");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      break;
+    case "Darwin":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofOSVersion(0x1090);
+      break;
+    case "Android":
+      gfxInfo.spoofVendorID("abcd");
+      gfxInfo.spoofDeviceID("asdf");
+      gfxInfo.spoofDriverVersion("5");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "15.0", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function checkBlacklist()
+  {
+    var failureId = {};
+    var status;
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+    do_check_eq(failureId.value, "FEATURE_FAILURE_DL_BLACKLIST_g1");
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+    do_check_eq(failureId.value, "FEATURE_FAILURE_DL_BLACKLIST_g2");
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_10_LAYERS, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+    do_check_eq(failureId.value, "");
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_10_1_LAYERS, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+    do_check_eq(failureId.value, "");
+
+    // These four pass on Linux independent of the blocklist XML file as the
+    // try machines don't have support.
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_OPENGL_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBGL_OPENGL, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+    do_check_eq(failureId.value, "FEATURE_FAILURE_DL_BLACKLIST_g11");
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBGL_ANGLE, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+    do_check_eq(failureId.value, "FEATURE_FAILURE_DL_BLACKLIST_NO_ID");
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBGL_MSAA, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_STAGEFRIGHT, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBRTC_HW_ACCELERATION, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBRTC_HW_ACCELERATION_ENCODE, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_WEBRTC_HW_ACCELERATION_DECODE, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_11_LAYERS, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_HARDWARE_VIDEO_DECODING, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_11_ANGLE, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DX_INTEROP2, failureId);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(function(aSubject, aTopic, aData) {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(checkBlacklist);
+  }, "blocklist-data-gfxItems", false);
+
+  load_blocklist("test_gfxBlacklist_AllOS.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_prefs.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_prefs.js
new file mode 100644
index 000000000..fbb992879
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gfxBlacklist_prefs.js
@@ -0,0 +1,135 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var { classes: Cc, interfaces: Ci } = Components;
+
+// Test whether the blacklist succesfully adds and removes the prefs that store
+// its decisions when the remote blacklist is changed.
+// Uses test_gfxBlacklist.xml and test_gfxBlacklist2.xml
+
+Components.utils.import("resource://testing-common/httpd.js");
+
+var gTestserver = new HttpServer();
+gTestserver.start(-1);
+gPort = gTestserver.identity.primaryPort;
+mapFile("/data/test_gfxBlacklist.xml", gTestserver);
+mapFile("/data/test_gfxBlacklist2.xml", gTestserver);
+
+function get_platform() {
+  var xulRuntime = Components.classes["@mozilla.org/xre/app-info;1"]
+                             .getService(Components.interfaces.nsIXULRuntime);
+  return xulRuntime.OS;
+}
+
+function load_blocklist(file) {
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" +
+                             gPort + "/data/" + file);
+  var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(Ci.nsITimerCallback);
+  blocklist.notify(null);
+}
+
+// Performs the initial setup
+function run_test() {
+  try {
+    var gfxInfo = Cc["@mozilla.org/gfx/info;1"].getService(Ci.nsIGfxInfo);
+  } catch (e) {
+    do_test_finished();
+    return;
+  }
+
+  // We can't do anything if we can't spoof the stuff we need.
+  if (!(gfxInfo instanceof Ci.nsIGfxInfoDebug)) {
+    do_test_finished();
+    return;
+  }
+
+  gfxInfo.QueryInterface(Ci.nsIGfxInfoDebug);
+
+  // Set the vendor/device ID, etc, to match the test file.
+  switch (get_platform()) {
+    case "WINNT":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofDriverVersion("8.52.322.2201");
+      // Windows 7
+      gfxInfo.spoofOSVersion(0x60001);
+      break;
+    case "Linux":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      break;
+    case "Darwin":
+      gfxInfo.spoofVendorID("0xabcd");
+      gfxInfo.spoofDeviceID("0x1234");
+      gfxInfo.spoofOSVersion(0x1090);
+      break;
+    case "Android":
+      gfxInfo.spoofVendorID("abcd");
+      gfxInfo.spoofDeviceID("asdf");
+      gfxInfo.spoofDriverVersion("5");
+      break;
+  }
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "3", "8");
+  startupManager();
+
+  do_test_pending();
+
+  function blacklistAdded(aSubject, aTopic, aData)
+  {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(ensureBlacklistSet);
+  }
+  function ensureBlacklistSet()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    // Make sure unrelated features aren't affected
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    var prefs = Cc["@mozilla.org/preferences-service;1"].
+          getService(Ci.nsIPrefBranch);
+    do_check_eq(prefs.getIntPref("gfx.blacklist.direct2d"),
+                Ci.nsIGfxInfo.FEATURE_BLOCKED_DRIVER_VERSION);
+
+    Services.obs.removeObserver(blacklistAdded, "blocklist-data-gfxItems");
+    Services.obs.addObserver(blacklistRemoved, "blocklist-data-gfxItems", false);
+    load_blocklist("test_gfxBlacklist2.xml");
+  }
+
+  function blacklistRemoved(aSubject, aTopic, aData)
+  {
+    // If we wait until after we go through the event loop, gfxInfo is sure to
+    // have processed the gfxItems event.
+    do_execute_soon(ensureBlacklistUnset);
+  }
+  function ensureBlacklistUnset()
+  {
+    var status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT2D);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    // Make sure unrelated features aren't affected
+    status = gfxInfo.getFeatureStatus(Ci.nsIGfxInfo.FEATURE_DIRECT3D_9_LAYERS);
+    do_check_eq(status, Ci.nsIGfxInfo.FEATURE_STATUS_OK);
+
+    var prefs = Cc["@mozilla.org/preferences-service;1"].
+          getService(Ci.nsIPrefBranch);
+    var exists = false;
+    try {
+      prefs.getIntPref("gfx.blacklist.direct2d");
+      exists = true;
+    } catch (e) {}
+
+    do_check_false(exists);
+
+    gTestserver.stop(do_test_finished);
+  }
+
+  Services.obs.addObserver(blacklistAdded, "blocklist-data-gfxItems", false);
+  load_blocklist("test_gfxBlacklist.xml");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_gmpProvider.js b/toolkit/mozapps/webextensions/test/xpcshell/test_gmpProvider.js
new file mode 100644
index 000000000..545d7d666
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_gmpProvider.js
@@ -0,0 +1,416 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+var {classes: Cc, interfaces: Ci, utils: Cu} = Components;
+var GMPScope = Cu.import("resource://gre/modules/addons/GMPProvider.jsm");
+Cu.import("resource://gre/modules/AppConstants.jsm");
+Cu.import("resource://gre/modules/UpdateUtils.jsm");
+
+XPCOMUtils.defineLazyGetter(this, "pluginsBundle",
+  () => Services.strings.createBundle("chrome://global/locale/plugins.properties"));
+
+XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
+                                  "resource://gre/modules/FileUtils.jsm");
+
+var gMockAddons = new Map();
+var gMockEmeAddons = new Map();
+
+for (let plugin of GMPScope.GMP_PLUGINS) {
+  let mockAddon = Object.freeze({
+      id: plugin.id,
+      isValid: true,
+      isInstalled: false,
+      nameId: plugin.name,
+      descriptionId: plugin.description,
+      missingKey: plugin.missingKey,
+      missingFilesKey: plugin.missingFilesKey,
+  });
+  gMockAddons.set(mockAddon.id, mockAddon);
+  if (mockAddon.id == "gmp-widevinecdm" ||
+      mockAddon.id.indexOf("gmp-eme-") == 0) {
+    gMockEmeAddons.set(mockAddon.id, mockAddon);
+  }
+}
+
+var gInstalledAddonId = "";
+var gPrefs = Services.prefs;
+var gGetKey = GMPScope.GMPPrefs.getPrefKey;
+
+function MockGMPInstallManager() {
+}
+
+MockGMPInstallManager.prototype = {
+  checkForAddons: () => Promise.resolve({
+    usedFallback: true,
+    gmpAddons: [...gMockAddons.values()]
+  }),
+
+  installAddon: addon => {
+    gInstalledAddonId = addon.id;
+    return Promise.resolve();
+  },
+};
+
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+
+  gPrefs.setBoolPref(GMPScope.GMPPrefs.KEY_LOGGING_DUMP, true);
+  gPrefs.setIntPref(GMPScope.GMPPrefs.KEY_LOGGING_LEVEL, 0);
+  gPrefs.setBoolPref(GMPScope.GMPPrefs.KEY_EME_ENABLED, true);
+  for (let addon of gMockAddons.values()) {
+    gPrefs.setBoolPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_VISIBLE, addon.id),
+                       true);
+    gPrefs.setBoolPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_FORCE_SUPPORTED, addon.id),
+                       true);
+  }
+  GMPScope.GMPProvider.shutdown();
+  GMPScope.GMPProvider.startup();
+
+  run_next_test();
+}
+
+add_task(function* test_notInstalled() {
+  for (let addon of gMockAddons.values()) {
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id), "");
+    gPrefs.setBoolPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_ENABLED, addon.id), false);
+  }
+
+  let addons = yield promiseAddonsByIDs([...gMockAddons.keys()]);
+  Assert.equal(addons.length, gMockAddons.size);
+
+  for (let addon of addons) {
+    Assert.ok(!addon.isInstalled);
+    Assert.equal(addon.type, "plugin");
+    Assert.equal(addon.version, "");
+
+    let mockAddon = gMockAddons.get(addon.id);
+
+    Assert.notEqual(mockAddon, null);
+    let name = pluginsBundle.GetStringFromName(mockAddon.nameId);
+    Assert.equal(addon.name, name);
+    let description = pluginsBundle.GetStringFromName(mockAddon.descriptionId);
+    Assert.equal(addon.description, description);
+
+    Assert.ok(!addon.isActive);
+    Assert.ok(!addon.appDisabled);
+    Assert.ok(addon.userDisabled);
+
+    Assert.equal(addon.blocklistState, Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+    Assert.equal(addon.size, 0);
+    Assert.equal(addon.scope, AddonManager.SCOPE_APPLICATION);
+    Assert.equal(addon.pendingOperations, AddonManager.PENDING_NONE);
+    Assert.equal(addon.operationsRequiringRestart, AddonManager.PENDING_NONE);
+
+    Assert.equal(addon.permissions, AddonManager.PERM_CAN_UPGRADE |
+                                    AddonManager.PERM_CAN_ENABLE);
+
+    Assert.equal(addon.updateDate, null);
+
+    Assert.ok(addon.isCompatible);
+    Assert.ok(addon.isPlatformCompatible);
+    Assert.ok(addon.providesUpdatesSecurely);
+    Assert.ok(!addon.foreignInstall);
+
+    let mimetypes = addon.pluginMimeTypes;
+    Assert.ok(mimetypes);
+    Assert.equal(mimetypes.length, 0);
+    let libraries = addon.pluginLibraries;
+    Assert.ok(libraries);
+    Assert.equal(libraries.length, 0);
+    Assert.equal(addon.pluginFullpath, "");
+  }
+});
+
+add_task(function* test_installed() {
+  const TEST_DATE = new Date(2013, 0, 1, 12);
+  const TEST_VERSION = "1.2.3.4";
+  const TEST_TIME_SEC = Math.round(TEST_DATE.getTime() / 1000);
+
+  let addons = yield promiseAddonsByIDs([...gMockAddons.keys()]);
+  Assert.equal(addons.length, gMockAddons.size);
+
+  for (let addon of addons) {
+    let mockAddon = gMockAddons.get(addon.id);
+    Assert.notEqual(mockAddon, null);
+
+    let file = Services.dirsvc.get("ProfD", Ci.nsIFile);
+    file.append(addon.id);
+    file.append(TEST_VERSION);
+    gPrefs.setBoolPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_ENABLED, mockAddon.id), false);
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_LAST_UPDATE, mockAddon.id),
+                      "" + TEST_TIME_SEC);
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, mockAddon.id),
+                      TEST_VERSION);
+
+    Assert.ok(addon.isInstalled);
+    Assert.equal(addon.type, "plugin");
+    Assert.ok(!addon.isActive);
+    Assert.ok(!addon.appDisabled);
+    Assert.ok(addon.userDisabled);
+
+    let name = pluginsBundle.GetStringFromName(mockAddon.nameId);
+    Assert.equal(addon.name, name);
+    Assert.equal(addon.version, TEST_VERSION);
+
+    Assert.equal(addon.permissions, AddonManager.PERM_CAN_UPGRADE |
+                                    AddonManager.PERM_CAN_ENABLE);
+
+    Assert.equal(addon.updateDate.getTime(), TEST_TIME_SEC * 1000);
+
+    let mimetypes = addon.pluginMimeTypes;
+    Assert.ok(mimetypes);
+    Assert.equal(mimetypes.length, 0);
+    let libraries = addon.pluginLibraries;
+    Assert.ok(libraries);
+    Assert.equal(libraries.length, 1);
+    Assert.equal(libraries[0], TEST_VERSION);
+    let fullpath = addon.pluginFullpath;
+    Assert.equal(fullpath.length, 1);
+    Assert.equal(fullpath[0], file.path);
+  }
+});
+
+add_task(function* test_enable() {
+  let addons = yield promiseAddonsByIDs([...gMockAddons.keys()]);
+  Assert.equal(addons.length, gMockAddons.size);
+
+  for (let addon of addons) {
+    gPrefs.setBoolPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_ENABLED, addon.id), true);
+
+    Assert.ok(addon.isActive);
+    Assert.ok(!addon.appDisabled);
+    Assert.ok(!addon.userDisabled);
+
+    Assert.equal(addon.permissions, AddonManager.PERM_CAN_UPGRADE |
+                                    AddonManager.PERM_CAN_DISABLE);
+  }
+});
+
+add_task(function* test_globalEmeDisabled() {
+  let addons = yield promiseAddonsByIDs([...gMockEmeAddons.keys()]);
+  Assert.equal(addons.length, gMockEmeAddons.size);
+
+  gPrefs.setBoolPref(GMPScope.GMPPrefs.KEY_EME_ENABLED, false);
+  GMPScope.GMPProvider.shutdown();
+  GMPScope.GMPProvider.startup();
+  for (let addon of addons) {
+    Assert.ok(!addon.isActive);
+    Assert.ok(addon.appDisabled);
+    Assert.ok(!addon.userDisabled);
+
+    Assert.equal(addon.permissions, 0);
+  }
+  gPrefs.setBoolPref(GMPScope.GMPPrefs.KEY_EME_ENABLED, true);
+  GMPScope.GMPProvider.shutdown();
+  GMPScope.GMPProvider.startup();
+});
+
+add_task(function* test_autoUpdatePrefPersistance() {
+  let addons = yield promiseAddonsByIDs([...gMockAddons.keys()]);
+  Assert.equal(addons.length, gMockAddons.size);
+
+  for (let addon of addons) {
+    let autoupdateKey = gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_AUTOUPDATE, addon.id);
+    gPrefs.clearUserPref(autoupdateKey);
+
+    addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+    Assert.ok(!gPrefs.getBoolPref(autoupdateKey));
+
+    addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_ENABLE;
+    Assert.equal(addon.applyBackgroundUpdates, AddonManager.AUTOUPDATE_ENABLE);
+    Assert.ok(gPrefs.getBoolPref(autoupdateKey));
+
+    addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DEFAULT;
+    Assert.ok(!gPrefs.prefHasUserValue(autoupdateKey));
+  }
+});
+
+function createMockPluginFilesIfNeeded(aFile, aPluginId) {
+  function createFile(aFileName) {
+    let f = aFile.clone();
+    f.append(aFileName);
+    if (!f.exists()) {
+      f.create(Ci.nsIFile.NORMAL_FILE_TYPE, FileUtils.PERMS_FILE);
+    }
+  }
+
+  let id = aPluginId.substring(4);
+  let libName = AppConstants.DLL_PREFIX + id + AppConstants.DLL_SUFFIX;
+
+  createFile(libName);
+  if (aPluginId == "gmp-widevinecdm") {
+    createFile("manifest.json");
+  } else {
+    createFile(id + ".info");
+  }
+  if (aPluginId == "gmp-eme-adobe")
+    createFile(id + ".voucher");
+}
+
+// Array.includes() is only in Nightly channel, so polyfill so we don't fail
+// on other branches.
+if (![].includes) {
+  Array.prototype.includes = function(element) {
+    return Object(this).indexOf(element) != -1;
+  }
+}
+
+add_task(function* test_pluginRegistration() {
+  const TEST_VERSION = "1.2.3.4";
+
+  let profD = do_get_profile();
+  for (let addon of gMockAddons.values()) {
+    let file = profD.clone();
+    file.append(addon.id);
+    file.append(TEST_VERSION);
+
+    let addedPaths = [];
+    let removedPaths = [];
+    let clearPaths = () => { addedPaths = []; removedPaths = []; }
+
+    let MockGMPService = {
+      addPluginDirectory: path => {
+        if (!addedPaths.includes(path)) {
+          addedPaths.push(path);
+        }
+      },
+      removePluginDirectory: path => {
+        if (!removedPaths.includes(path)) {
+          removedPaths.push(path);
+        }
+      },
+      removeAndDeletePluginDirectory: path => {
+        if (!removedPaths.includes(path)) {
+          removedPaths.push(path);
+        }
+      },
+    };
+    GMPScope.gmpService = MockGMPService;
+
+    gPrefs.setBoolPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_ENABLED, addon.id), true);
+
+    // Test that plugin registration fails if the plugin dynamic library and
+    // info files are not present.
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id),
+                       TEST_VERSION);
+    clearPaths();
+    yield promiseRestartManager();
+    Assert.equal(addedPaths.indexOf(file.path), -1);
+    Assert.deepEqual(removedPaths, [file.path]);
+
+    // Create dummy GMP library/info files, and test that plugin registration
+    // succeeds during startup, now that we've added GMP info/lib files.
+    createMockPluginFilesIfNeeded(file, addon.id);
+
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id),
+                       TEST_VERSION);
+    clearPaths();
+    yield promiseRestartManager();
+    Assert.notEqual(addedPaths.indexOf(file.path), -1);
+    Assert.deepEqual(removedPaths, []);
+
+    // Setting the ABI to something invalid should cause plugin to be removed at startup.
+    clearPaths();
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_ABI, addon.id), "invalid-ABI");
+    yield promiseRestartManager();
+    Assert.equal(addedPaths.indexOf(file.path), -1);
+    Assert.deepEqual(removedPaths, [file.path]);
+
+    // Setting the ABI to expected ABI should cause registration at startup.
+    clearPaths();
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id),
+                       TEST_VERSION);
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_ABI, addon.id), UpdateUtils.ABI);
+    yield promiseRestartManager();
+    Assert.notEqual(addedPaths.indexOf(file.path), -1);
+    Assert.deepEqual(removedPaths, []);
+
+    // Check that clearing the version doesn't trigger registration.
+    clearPaths();
+    gPrefs.clearUserPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id));
+    Assert.deepEqual(addedPaths, []);
+    Assert.deepEqual(removedPaths, [file.path]);
+
+    // Restarting with no version set should not trigger registration.
+    clearPaths();
+    yield promiseRestartManager();
+    Assert.equal(addedPaths.indexOf(file.path), -1);
+    Assert.equal(removedPaths.indexOf(file.path), -1);
+
+    // Changing the pref mid-session should cause unregistration and registration.
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id),
+                       TEST_VERSION);
+    clearPaths();
+    const TEST_VERSION_2 = "5.6.7.8";
+    let file2 = Services.dirsvc.get("ProfD", Ci.nsIFile);
+    file2.append(addon.id);
+    file2.append(TEST_VERSION_2);
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id),
+                      TEST_VERSION_2);
+    Assert.deepEqual(addedPaths, [file2.path]);
+    Assert.deepEqual(removedPaths, [file.path]);
+
+    // Disabling the plugin should cause unregistration.
+    gPrefs.setCharPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_VERSION, addon.id),
+                       TEST_VERSION);
+    clearPaths();
+    gPrefs.setBoolPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_ENABLED, addon.id), false);
+    Assert.deepEqual(addedPaths, []);
+    Assert.deepEqual(removedPaths, [file.path]);
+
+    // Restarting with the plugin disabled should not cause registration.
+    clearPaths();
+    yield promiseRestartManager();
+    Assert.equal(addedPaths.indexOf(file.path), -1);
+    Assert.equal(removedPaths.indexOf(file.path), -1);
+
+    // Re-enabling the plugin should cause registration.
+    clearPaths();
+    gPrefs.setBoolPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_ENABLED, addon.id), true);
+    Assert.deepEqual(addedPaths, [file.path]);
+    Assert.deepEqual(removedPaths, []);
+    GMPScope = Cu.import("resource://gre/modules/addons/GMPProvider.jsm");
+  }
+});
+
+add_task(function* test_periodicUpdate() {
+  Object.defineProperty(GMPScope, "GMPInstallManager", {
+    value: MockGMPInstallManager,
+    writable: true,
+    enumerable: true,
+    configurable: true
+  });
+
+  let addons = yield promiseAddonsByIDs([...gMockAddons.keys()]);
+  Assert.equal(addons.length, gMockAddons.size);
+
+  for (let addon of addons) {
+    gPrefs.clearUserPref(gGetKey(GMPScope.GMPPrefs.KEY_PLUGIN_AUTOUPDATE, addon.id));
+
+    addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+    gPrefs.setIntPref(GMPScope.GMPPrefs.KEY_UPDATE_LAST_CHECK, 0);
+    let result =
+      yield addon.findUpdates({}, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+    Assert.strictEqual(result, false);
+
+    addon.applyBackgroundUpdates = AddonManager.AUTOUPDATE_ENABLE;
+    gPrefs.setIntPref(GMPScope.GMPPrefs.KEY_UPDATE_LAST_CHECK, Date.now() / 1000 - 60);
+    result =
+      yield addon.findUpdates({}, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+    Assert.strictEqual(result, false);
+
+    gPrefs.setIntPref(GMPScope.GMPPrefs.KEY_UPDATE_LAST_CHECK,
+                     Date.now() / 1000 - 2 * GMPScope.SEC_IN_A_DAY);
+    gInstalledAddonId = "";
+    result =
+      yield addon.findUpdates({}, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+    Assert.strictEqual(result, true);
+    Assert.equal(gInstalledAddonId, addon.id);
+  }
+
+  GMPScope = Cu.import("resource://gre/modules/addons/GMPProvider.jsm");
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_hasbinarycomponents.js b/toolkit/mozapps/webextensions/test/xpcshell/test_hasbinarycomponents.js
new file mode 100644
index 000000000..925e63626
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_hasbinarycomponents.js
@@ -0,0 +1,82 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests detection of binary components via parsing of chrome manifests.
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  startupManager();
+
+  installAllFiles([do_get_addon("test_chromemanifest_1"),
+                   do_get_addon("test_chromemanifest_2"),
+                   do_get_addon("test_chromemanifest_3"),
+                   do_get_addon("test_chromemanifest_4"),
+                   do_get_addon("test_chromemanifest_5")],
+                  function() {
+
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon2@tests.mozilla.org",
+                                 "addon3@tests.mozilla.org",
+                                 "addon4@tests.mozilla.org",
+                                 "addon5@tests.mozilla.org"],
+                                function([a1, a2, a3, a4, a5]) {
+      // addon1 has no binary components
+      do_check_neq(a1, null);
+      do_check_false(a1.userDisabled);
+      do_check_false(a1.hasBinaryComponents);
+      do_check_true(a1.isCompatible);
+      do_check_false(a1.appDisabled);
+      do_check_true(a1.isActive);
+      do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+      // addon2 has a binary component, is compatible
+      do_check_neq(a2, null);
+      do_check_false(a2.userDisabled);
+      do_check_true(a2.hasBinaryComponents);
+      do_check_true(a2.isCompatible);
+      do_check_false(a2.appDisabled);
+      do_check_true(a2.isActive);
+      do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+
+      // addon3 has a binary component, is incompatible
+      do_check_neq(a3, null);
+      do_check_false(a3.userDisabled);
+      do_check_true(a2.hasBinaryComponents);
+      do_check_false(a3.isCompatible);
+      do_check_true(a3.appDisabled);
+      do_check_false(a3.isActive);
+      do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+
+      // addon4 has a binary component listed in a sub-manifest, is incompatible
+      do_check_neq(a4, null);
+      do_check_false(a4.userDisabled);
+      do_check_true(a2.hasBinaryComponents);
+      do_check_false(a4.isCompatible);
+      do_check_true(a4.appDisabled);
+      do_check_false(a4.isActive);
+      do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+      // addon5 has a binary component, but is set to not unpack
+      do_check_neq(a5, null);
+      do_check_false(a5.userDisabled);
+      if (TEST_UNPACKED)
+        do_check_true(a5.hasBinaryComponents);
+      else
+        do_check_false(a5.hasBinaryComponents);
+      do_check_true(a5.isCompatible);
+      do_check_false(a5.appDisabled);
+      do_check_true(a5.isActive);
+      do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+      do_execute_soon(do_test_finished);
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_hotfix.js b/toolkit/mozapps/webextensions/test/xpcshell/test_hotfix.js
new file mode 100644
index 000000000..c9303897f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_hotfix.js
@@ -0,0 +1,309 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that hotfix installation works
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+// Ignore any certificate requirements the app has set
+Services.prefs.setBoolPref("extensions.hotfix.cert.checkAttributes", false);
+
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+mapFile("/data/test_hotfix_1.rdf", testserver);
+mapFile("/data/test_hotfix_2.rdf", testserver);
+mapFile("/data/test_hotfix_3.rdf", testserver);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+
+  do_test_pending();
+  run_test_1();
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+// Test that background updates find and install any available hotfix
+function run_test_1() {
+  Services.prefs.setCharPref("extensions.hotfix.id", "hotfix@tests.mozilla.org");
+  Services.prefs.setCharPref("extensions.update.background.url", "http://localhost:" +
+                             gPort + "/data/test_hotfix_1.rdf");
+
+  prepare_test({
+    "hotfix@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded",
+  ], callback_soon(check_test_1));
+
+  // We don't need to wait on the promise, just waiting for the install to finish is enough.
+  AddonManagerInternal.backgroundUpdateCheck();
+}
+
+function check_test_1() {
+  restartManager();
+
+  AddonManager.getAddonByID("hotfix@tests.mozilla.org", function(aAddon) {
+    do_check_neq(aAddon, null);
+    do_check_eq(aAddon.version, "1.0");
+
+    aAddon.uninstall();
+    do_execute_soon(run_test_2);
+  });
+}
+
+// Don't install an already used hotfix
+function run_test_2() {
+  restartManager();
+
+  AddonManager.addInstallListener({
+    onNewInstall: function() {
+      do_throw("Should not have seen a new install created");
+    }
+  });
+
+  // Run the background update
+  AddonManagerInternal.backgroundUpdateCheck().then(run_test_3);
+}
+
+// Install a newer hotfix
+function run_test_3() {
+  restartManager();
+  Services.prefs.setCharPref("extensions.hotfix.url", "http://localhost:" +
+                             gPort + "/data/test_hotfix_2.rdf");
+
+  prepare_test({
+    "hotfix@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded",
+  ], callback_soon(check_test_3));
+
+  AddonManagerInternal.backgroundUpdateCheck();
+}
+
+function check_test_3() {
+  restartManager();
+
+  AddonManager.getAddonByID("hotfix@tests.mozilla.org", function(aAddon) {
+    do_check_neq(aAddon, null);
+    do_check_eq(aAddon.version, "2.0");
+
+    aAddon.uninstall();
+    do_execute_soon(run_test_4);
+  });
+}
+
+// Don't install an incompatible hotfix
+function run_test_4() {
+  restartManager();
+
+  Services.prefs.setCharPref("extensions.hotfix.url", "http://localhost:" +
+                             gPort + "/data/test_hotfix_3.rdf");
+
+  AddonManager.addInstallListener({
+    onNewInstall: function() {
+      do_throw("Should not have seen a new install created");
+    }
+  });
+
+  AddonManagerInternal.backgroundUpdateCheck().then(run_test_5);
+}
+
+// Don't install an older hotfix
+function run_test_5() {
+  restartManager();
+
+  Services.prefs.setCharPref("extensions.hotfix.url", "http://localhost:" +
+                             gPort + "/data/test_hotfix_1.rdf");
+
+  AddonManager.addInstallListener({
+    onNewInstall: function() {
+      do_throw("Should not have seen a new install created");
+    }
+  });
+
+  AddonManagerInternal.backgroundUpdateCheck().then(run_test_6);
+}
+
+// Don't re-download an already pending install
+function run_test_6() {
+  restartManager();
+
+  Services.prefs.setCharPref("extensions.hotfix.lastVersion", "0");
+  Services.prefs.setCharPref("extensions.hotfix.url", "http://localhost:" +
+                             gPort + "/data/test_hotfix_1.rdf");
+
+  prepare_test({
+    "hotfix@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded",
+  ], callback_soon(check_test_6));
+
+  AddonManagerInternal.backgroundUpdateCheck();
+}
+
+function check_test_6() {
+  AddonManager.addInstallListener({
+    onNewInstall: function() {
+      do_throw("Should not have seen a new install created");
+    }
+  });
+
+  AddonManagerInternal.backgroundUpdateCheck()
+    .then(promiseRestartManager)
+    .then(() => promiseAddonByID("hotfix@tests.mozilla.org"))
+    .then(aAddon => {
+      aAddon.uninstall();
+      run_test_7();
+    });
+}
+
+// Start downloading again if something cancels the install
+function run_test_7() {
+  restartManager();
+
+  Services.prefs.setCharPref("extensions.hotfix.lastVersion", "0");
+
+  prepare_test({
+    "hotfix@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded",
+  ], check_test_7);
+
+  AddonManagerInternal.backgroundUpdateCheck();
+}
+
+function check_test_7(aInstall) {
+  prepare_test({
+    "hotfix@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  }, [
+    "onInstallCancelled",
+  ]);
+
+  aInstall.cancel();
+
+  prepare_test({
+    "hotfix@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded",
+  ], callback_soon(finish_test_7));
+
+  AddonManagerInternal.backgroundUpdateCheck();
+}
+
+function finish_test_7() {
+  restartManager();
+
+  AddonManager.getAddonByID("hotfix@tests.mozilla.org", function(aAddon) {
+    do_check_neq(aAddon, null);
+    do_check_eq(aAddon.version, "1.0");
+
+    aAddon.uninstall();
+    do_execute_soon(run_test_8);
+  });
+}
+
+// Cancel a pending install when a newer version is already available
+function run_test_8() {
+  restartManager();
+
+  Services.prefs.setCharPref("extensions.hotfix.lastVersion", "0");
+  Services.prefs.setCharPref("extensions.hotfix.url", "http://localhost:" +
+                             gPort + "/data/test_hotfix_1.rdf");
+
+  prepare_test({
+    "hotfix@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded",
+  ], check_test_8);
+
+  AddonManagerInternal.backgroundUpdateCheck();
+}
+
+function check_test_8() {
+  Services.prefs.setCharPref("extensions.hotfix.url", "http://localhost:" +
+                             gPort + "/data/test_hotfix_2.rdf");
+
+  prepare_test({
+    "hotfix@tests.mozilla.org": [
+      "onOperationCancelled",
+      "onInstalling"
+    ]
+  }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallCancelled",
+    "onInstallEnded",
+  ], finish_test_8);
+
+  AddonManagerInternal.backgroundUpdateCheck();
+}
+
+function finish_test_8() {
+  AddonManager.getAllInstalls(callback_soon(function(aInstalls) {
+    do_check_eq(aInstalls.length, 1);
+    do_check_eq(aInstalls[0].version, "2.0");
+
+    restartManager();
+
+    AddonManager.getAddonByID("hotfix@tests.mozilla.org", callback_soon(function(aAddon) {
+      do_check_neq(aAddon, null);
+      do_check_eq(aAddon.version, "2.0");
+
+      aAddon.uninstall();
+      restartManager();
+
+      end_test();
+    }));
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_hotfix_cert.js b/toolkit/mozapps/webextensions/test/xpcshell/test_hotfix_cert.js
new file mode 100644
index 000000000..42ee59740
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_hotfix_cert.js
@@ -0,0 +1,167 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that hotfix installation works
+const PREF_EM_HOTFIX_ID               = "extensions.hotfix.id";
+const PREF_EM_HOTFIX_LASTVERSION      = "extensions.hotfix.lastVersion";
+const PREF_EM_HOTFIX_URL              = "extensions.hotfix.url";
+const PREF_EM_CERT_CHECKATTRIBUTES    = "extensions.hotfix.cert.checkAttributes";
+const PREF_EM_HOTFIX_CERTS            = "extensions.hotfix.certs.";
+
+// Derived from "openssl x509 -in firefox-hotfix.crt -fingerprint -sha1"
+const GOOD_FINGERPRINT = "39:E7:2B:7A:5B:CF:37:78:F9:5D:4A:E0:53:2D:2F:3D:68:53:C5:60";
+const BAD_FINGERPRINT  = "40:E7:2B:7A:5B:CF:37:78:F9:5D:4A:E0:53:2D:2F:3D:68:53:C5:60";
+
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+testserver.registerDirectory("/data/", do_get_file("data"));
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+// Ignore any certificate requirements the app has set
+Services.prefs.setBoolPref(PREF_EM_CERT_CHECKATTRIBUTES, true);
+Services.prefs.setCharPref(PREF_EM_HOTFIX_URL, "http://localhost:" + gPort + "/hotfix.rdf");
+// Clear out all hotfix cert prefs to make sure only the test prefs apply.
+var defaults = Services.prefs.getDefaultBranch("");
+defaults.deleteBranch(PREF_EM_HOTFIX_CERTS);
+
+/*
+ * Register an addon install listener and return a promise that:
+ *  resolves with the AddonInstall object if the install succeeds
+ *  rejects with the AddonInstall if the install fails
+ */
+function promiseInstallListener() {
+  return new Promise((resolve, reject) => {
+    let listener = {
+      onDownloadFailed: ai => {
+        AddonManager.removeInstallListener(listener);
+        reject(ai);
+      },
+      onInstallEnded: ai => {
+        AddonManager.removeInstallListener(listener);
+        resolve(ai);
+      },
+      onDownloadCancelled: ai => {
+        AddonManager.removeInstallListener(listener);
+        reject(ai);
+      }
+    };
+    AddonManager.addInstallListener(listener);
+  });
+}
+
+function promiseSuccessfulInstall() {
+  return promiseInstallListener().then(
+    aInstall => {
+      do_check_true(true);
+      do_check_eq(aInstall.addon.id, Services.prefs.getCharPref(PREF_EM_HOTFIX_ID));
+      aInstall.addon.uninstall();
+      Services.prefs.clearUserPref(PREF_EM_HOTFIX_LASTVERSION);
+    },
+    aInstall => {
+      do_throw("Install should not have failed");
+    });
+}
+
+function promiseFailedInstall() {
+  return promiseInstallListener().then(
+    aInstall => {
+      do_throw("Install should not have succeeded");
+      aInstall.addon.uninstall();
+      Services.prefs.clearUserPref(PREF_EM_HOTFIX_LASTVERSION);
+    },
+    aInstall => {
+      do_check_true(true);
+    });
+}
+
+var tryInstallHotfix = Task.async(function*(id, file, installListener) {
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_ID, id);
+
+  testserver.registerPathHandler("/hotfix.rdf", function(request, response) {
+    response.write(createUpdateRDF({
+      [id]: [{
+        version: "1.0",
+        targetApplications: [{
+          id: "xpcshell@tests.mozilla.org",
+          minVersion: "0",
+          maxVersion: "*",
+          updateLink: "http://localhost:" + gPort + "/data/signing_checks/" + file,
+        }]
+      }]
+    }));
+  });
+
+  yield Promise.all([
+    installListener,
+    AddonManagerPrivate.backgroundUpdateCheck()
+  ]);
+
+  testserver.registerPathHandler("/hotfix.rdf", null);
+  Services.prefs.clearUserPref(PREF_EM_HOTFIX_ID);
+});
+
+// Test valid AMO hotfix signed add-ons doesn't work if the fingerprint pref is wrong
+add_task(function* amo_signed_hotfix() {
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint", BAD_FINGERPRINT);
+
+  yield tryInstallHotfix("firefox-hotfix@mozilla.org",
+                         "hotfix_good.xpi",
+                         promiseFailedInstall());
+});
+
+// Test valid AMO hotfix signed add-ons works
+add_task(function* amo_signed_hotfix() {
+  Services.prefs.setCharPref(PREF_EM_HOTFIX_CERTS + "1.sha1Fingerprint", GOOD_FINGERPRINT);
+
+  yield tryInstallHotfix("firefox-hotfix@mozilla.org",
+                         "hotfix_good.xpi",
+                         promiseSuccessfulInstall());
+});
+
+// A hotfix altered after signing should fail
+add_task(function* amo_broken_hotfix() {
+  yield tryInstallHotfix("firefox-hotfix@mozilla.org",
+                         "hotfix_broken.xpi",
+                         promiseFailedInstall());
+});
+
+// Test an add-on with the wrong ID but signed by the right cert fails
+add_task(function* amo_wrongID_rightcert() {
+  yield tryInstallHotfix("test@tests.mozilla.org",
+                         "hotfix_badid.xpi",
+                         promiseFailedInstall());
+});
+
+// It shouldn't matter that it requested the ID matching the cert to begin with
+// if the embedded cert's ID doesn't match the add-on's ID
+add_task(function* amo_wrongID_rightcert2() {
+  yield tryInstallHotfix("firefox-hotfix@mozilla.org",
+                         "hotfix_badid.xpi",
+                         promiseFailedInstall());
+});
+
+// Test something signed by a regular AMO cert doesn't work
+add_task(function* amo_signed_addon() {
+  yield tryInstallHotfix("test@tests.mozilla.org",
+                         "signed_bootstrap_1.xpi",
+                         promiseFailedInstall());
+});
+
+// Test totally unsigned add-on fails
+add_task(function* unsigned() {
+  yield tryInstallHotfix("test@tests.mozilla.org",
+                         "unsigned_bootstrap_2.xpi",
+                         promiseFailedInstall());
+});
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  startupManager();
+
+  run_next_test();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_install.js b/toolkit/mozapps/webextensions/test/xpcshell/test_install.js
new file mode 100644
index 000000000..60af3a9fd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_install.js
@@ -0,0 +1,1843 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-ons can be installed from XPI files
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+
+// install.rdf size, icon.png, icon64.png size
+const ADDON1_SIZE = 705 + 16 + 16;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/NetUtil.jsm");
+Cu.import("resource://testing-common/httpd.js");
+
+var testserver;
+var gInstallDate;
+var gInstall = null;
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+  // Make sure we only register once despite multiple calls
+  AddonManager.addInstallListener(InstallListener);
+  AddonManager.addAddonListener(AddonListener);
+  AddonManager.addInstallListener(InstallListener);
+  AddonManager.addAddonListener(AddonListener);
+
+  // Create and configure the HTTP server.
+  testserver = new HttpServer();
+  testserver.registerDirectory("/addons/", do_get_file("addons"));
+  testserver.registerDirectory("/data/", do_get_file("data"));
+  testserver.registerPathHandler("/redirect", function(aRequest, aResponse) {
+    aResponse.setStatusLine(null, 301, "Moved Permanently");
+    let url = aRequest.host + ":" + aRequest.port + aRequest.queryString;
+    aResponse.setHeader("Location", "http://" + url);
+  });
+  testserver.start(-1);
+  gPort = testserver.identity.primaryPort;
+
+  do_test_pending();
+  run_test_1();
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+// Checks that an install from a local file proceeds as expected
+function run_test_1() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install1"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.linkedInstalls, null);
+    do_check_eq(install.type, "extension");
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Test 1");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(install.addon.hasResource("install.rdf"));
+    do_check_neq(install.addon.syncGUID, null);
+    do_check_eq(install.addon.install, install);
+    do_check_eq(install.addon.size, ADDON1_SIZE);
+    do_check_true(hasFlag(install.addon.operationsRequiringRestart,
+                          AddonManager.OP_NEEDS_RESTART_INSTALL));
+    let file = do_get_addon("test_install1");
+    let uri = Services.io.newFileURI(file).spec;
+    do_check_eq(install.addon.getResourceURI("install.rdf").spec, "jar:" + uri + "!/install.rdf");
+    do_check_eq(install.addon.iconURL, "jar:" + uri + "!/icon.png");
+    do_check_eq(install.addon.icon64URL, "jar:" + uri + "!/icon64.png");
+    do_check_eq(install.iconURL, null);
+
+    do_check_eq(install.sourceURI.spec, uri);
+    do_check_eq(install.addon.sourceURI.spec, uri);
+
+    AddonManager.getAllInstalls(function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      AddonManager.getInstallsByTypes(["foo"], function(fooInstalls) {
+        do_check_eq(fooInstalls.length, 0);
+
+        AddonManager.getInstallsByTypes(["extension"], function(extensionInstalls) {
+          do_check_eq(extensionInstalls.length, 1);
+          do_check_eq(extensionInstalls[0], install);
+
+          prepare_test({
+            "addon1@tests.mozilla.org": [
+              "onInstalling"
+            ]
+          }, [
+            "onInstallStarted",
+            "onInstallEnded",
+          ], function() {
+            check_test_1(install.addon.syncGUID);
+          });
+          install.install();
+        });
+      });
+    });
+  });
+}
+
+function check_test_1(installSyncGUID) {
+  ensure_test_completed();
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(olda1) {
+    do_check_eq(olda1, null);
+
+    AddonManager.getAddonsWithOperationsByTypes(null, callback_soon(function(pendingAddons) {
+      do_check_eq(pendingAddons.length, 1);
+      do_check_eq(pendingAddons[0].id, "addon1@tests.mozilla.org");
+      let uri = NetUtil.newURI(pendingAddons[0].iconURL);
+      if (uri instanceof AM_Ci.nsIJARURI) {
+        let jarURI = uri.QueryInterface(AM_Ci.nsIJARURI);
+        let archiveURI = jarURI.JARFile;
+        let archiveFile = archiveURI.QueryInterface(AM_Ci.nsIFileURL).file;
+        let zipReader = Cc["@mozilla.org/libjar/zip-reader;1"].
+                        createInstance(Ci.nsIZipReader);
+        try {
+          zipReader.open(archiveFile);
+          do_check_true(zipReader.hasEntry(jarURI.JAREntry));
+        }
+        finally {
+          zipReader.close();
+        }
+      }
+      else {
+        let iconFile = uri.QueryInterface(AM_Ci.nsIFileURL).file;
+        do_check_true(iconFile.exists());
+        // Make the iconFile predictably old.
+        iconFile.lastModifiedTime = Date.now() - MAKE_FILE_OLD_DIFFERENCE;
+      }
+
+      // Make the pending install have a sensible date
+      let updateDate = Date.now();
+      let extURI = pendingAddons[0].getResourceURI("");
+      let ext = extURI.QueryInterface(AM_Ci.nsIFileURL).file;
+      setExtensionModifiedTime(ext, updateDate);
+
+      // The pending add-on cannot be disabled or enabled.
+      do_check_false(hasFlag(pendingAddons[0].permissions, AddonManager.PERM_CAN_ENABLE));
+      do_check_false(hasFlag(pendingAddons[0].permissions, AddonManager.PERM_CAN_DISABLE));
+
+      restartManager();
+
+      AddonManager.getAllInstalls(function(activeInstalls) {
+        do_check_eq(activeInstalls, 0);
+
+        AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+          do_check_neq(a1, null);
+          do_check_neq(a1.syncGUID, null);
+          do_check_true(a1.syncGUID.length >= 9);
+          do_check_eq(a1.syncGUID, installSyncGUID);
+          do_check_eq(a1.type, "extension");
+          do_check_eq(a1.version, "1.0");
+          do_check_eq(a1.name, "Test 1");
+          do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+          do_check_true(do_get_addon("test_install1").exists());
+          do_check_in_crash_annotation(a1.id, a1.version);
+          do_check_eq(a1.size, ADDON1_SIZE);
+          do_check_false(a1.foreignInstall);
+
+          do_check_eq(a1.sourceURI.spec,
+                      Services.io.newFileURI(do_get_addon("test_install1")).spec);
+          let difference = a1.installDate.getTime() - updateDate;
+          if (Math.abs(difference) > MAX_TIME_DIFFERENCE)
+            do_throw("Add-on install time was out by " + difference + "ms");
+
+          difference = a1.updateDate.getTime() - updateDate;
+          if (Math.abs(difference) > MAX_TIME_DIFFERENCE)
+            do_throw("Add-on update time was out by " + difference + "ms");
+
+          do_check_true(a1.hasResource("install.rdf"));
+          do_check_false(a1.hasResource("foo.bar"));
+
+          let uri2 = do_get_addon_root_uri(profileDir, "addon1@tests.mozilla.org");
+          do_check_eq(a1.getResourceURI("install.rdf").spec, uri2 + "install.rdf");
+          do_check_eq(a1.iconURL, uri2 + "icon.png");
+          do_check_eq(a1.icon64URL, uri2 + "icon64.png");
+
+          // Ensure that extension bundle (or icon if unpacked) has updated
+          // lastModifiedDate.
+          let testURI = a1.getResourceURI(TEST_UNPACKED ? "icon.png" : "");
+          let testFile = testURI.QueryInterface(Components.interfaces.nsIFileURL).file;
+          do_check_true(testFile.exists());
+          difference = testFile.lastModifiedTime - Date.now();
+          do_check_true(Math.abs(difference) < MAX_TIME_DIFFERENCE);
+
+          a1.uninstall();
+          let { id, version } = a1;
+          restartManager();
+          do_check_not_in_crash_annotation(id, version);
+
+          do_execute_soon(run_test_2);
+        }));
+      });
+    }));
+  });
+}
+
+// Tests that an install from a url downloads.
+function run_test_2() {
+  let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    do_check_neq(install, null);
+    do_check_eq(install.linkedInstalls, null);
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Test 2");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+    do_check_eq(install.iconURL, null);
+    do_check_eq(install.sourceURI.spec, url);
+
+    AddonManager.getAllInstalls(function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      prepare_test({}, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+      ], check_test_2);
+
+      install.addListener({
+        onDownloadProgress: function() {
+          do_execute_soon(function() {
+            Components.utils.forceGC();
+          });
+        }
+      });
+
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Test 2", null, "1.0");
+}
+
+function check_test_2(install) {
+  ensure_test_completed();
+  do_check_eq(install.version, "2.0");
+  do_check_eq(install.name, "Real Test 2");
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+  do_check_eq(install.addon.install, install);
+  do_check_true(hasFlag(install.addon.operationsRequiringRestart,
+                        AddonManager.OP_NEEDS_RESTART_INSTALL));
+  do_check_eq(install.iconURL, null);
+
+  // Pause the install here and start it again in run_test_3
+  do_execute_soon(function() { run_test_3(install); });
+  return false;
+}
+
+// Tests that the downloaded XPI installs ok
+function run_test_3(install) {
+  prepare_test({
+    "addon2@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onInstallStarted",
+    "onInstallEnded",
+  ], check_test_3);
+  install.install();
+}
+
+function check_test_3(aInstall) {
+  // Make the pending install have a sensible date
+  let updateDate = Date.now();
+  let extURI = aInstall.addon.getResourceURI("");
+  let ext = extURI.QueryInterface(AM_Ci.nsIFileURL).file;
+  setExtensionModifiedTime(ext, updateDate);
+
+  ensure_test_completed();
+  AddonManager.getAddonByID("addon2@tests.mozilla.org", callback_soon(function(olda2) {
+    do_check_eq(olda2, null);
+    restartManager();
+
+    AddonManager.getAllInstalls(function(installs) {
+      do_check_eq(installs, 0);
+
+      AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+        do_check_neq(a2, null);
+        do_check_neq(a2.syncGUID, null);
+        do_check_eq(a2.type, "extension");
+        do_check_eq(a2.version, "2.0");
+        do_check_eq(a2.name, "Real Test 2");
+        do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+        do_check_true(do_get_addon("test_install2_1").exists());
+        do_check_in_crash_annotation(a2.id, a2.version);
+        do_check_eq(a2.sourceURI.spec,
+                    "http://localhost:" + gPort + "/addons/test_install2_1.xpi");
+
+        let difference = a2.installDate.getTime() - updateDate;
+        if (Math.abs(difference) > MAX_TIME_DIFFERENCE)
+          do_throw("Add-on install time was out by " + difference + "ms");
+
+        difference = a2.updateDate.getTime() - updateDate;
+        if (Math.abs(difference) > MAX_TIME_DIFFERENCE)
+          do_throw("Add-on update time was out by " + difference + "ms");
+
+        gInstallDate = a2.installDate.getTime();
+
+        run_test_4();
+      });
+    });
+  }));
+}
+
+// Tests that installing a new version of an existing add-on works
+function run_test_4() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install2_2.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.version, "3.0");
+    do_check_eq(install.name, "Test 3");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    AddonManager.getAllInstalls(function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+      do_check_eq(install.existingAddon, null);
+
+      prepare_test({}, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+      ], check_test_4);
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Test 3", null, "3.0");
+}
+
+function check_test_4(install) {
+  ensure_test_completed();
+
+  do_check_eq(install.version, "3.0");
+  do_check_eq(install.name, "Real Test 3");
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+  do_check_neq(install.existingAddon);
+  do_check_eq(install.existingAddon.id, "addon2@tests.mozilla.org");
+  do_check_eq(install.addon.install, install);
+  do_check_true(hasFlag(install.addon.operationsRequiringRestart,
+                        AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+  run_test_5();
+  // Installation will continue when there is nothing returned.
+}
+
+// Continue installing the new version
+function run_test_5() {
+  prepare_test({
+    "addon2@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onInstallStarted",
+    "onInstallEnded",
+  ], check_test_5);
+}
+
+function check_test_5(install) {
+  ensure_test_completed();
+
+  do_check_eq(install.existingAddon.pendingUpgrade.install, install);
+
+  AddonManager.getAddonByID("addon2@tests.mozilla.org", function(olda2) {
+    do_check_neq(olda2, null);
+    do_check_true(hasFlag(olda2.pendingOperations, AddonManager.PENDING_UPGRADE));
+
+    AddonManager.getInstallsByTypes(null, callback_soon(function(installs) {
+      do_check_eq(installs.length, 1);
+      do_check_eq(installs[0].addon, olda2.pendingUpgrade);
+      restartManager();
+
+      AddonManager.getInstallsByTypes(null, function(installs2) {
+        do_check_eq(installs2.length, 0);
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_neq(a2, null);
+          do_check_eq(a2.type, "extension");
+          do_check_eq(a2.version, "3.0");
+          do_check_eq(a2.name, "Real Test 3");
+          do_check_true(a2.isActive);
+          do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+          do_check_true(do_get_addon("test_install2_2").exists());
+          do_check_in_crash_annotation(a2.id, a2.version);
+          do_check_eq(a2.sourceURI.spec,
+                      "http://localhost:" + gPort + "/addons/test_install2_2.xpi");
+          do_check_false(a2.foreignInstall);
+
+          do_check_eq(a2.installDate.getTime(), gInstallDate);
+          // Update date should be later (or the same if this test is too fast)
+          do_check_true(a2.installDate <= a2.updateDate);
+
+          a2.uninstall();
+          do_execute_soon(run_test_6);
+        });
+      });
+    }));
+  });
+}
+
+// Tests that an install that requires a compatibility update works
+function run_test_6() {
+  restartManager();
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Real Test 4");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    AddonManager.getInstallsByTypes(null, function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      prepare_test({}, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+      ], check_test_6);
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Real Test 4", null, "1.0");
+}
+
+function check_test_6(install) {
+  ensure_test_completed();
+  do_check_eq(install.version, "1.0");
+  do_check_eq(install.name, "Real Test 4");
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+  do_check_eq(install.existingAddon, null);
+  do_check_false(install.addon.appDisabled);
+  run_test_7();
+  return true;
+}
+
+// Continue the install
+function run_test_7() {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onInstallStarted",
+    "onInstallEnded",
+  ], check_test_7);
+}
+
+function check_test_7() {
+  ensure_test_completed();
+  AddonManager.getAddonByID("addon3@tests.mozilla.org", callback_soon(function(olda3) {
+    do_check_eq(olda3, null);
+    restartManager();
+
+    AddonManager.getAllInstalls(function(installs) {
+      do_check_eq(installs, 0);
+
+      AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+        do_check_neq(a3, null);
+        do_check_neq(a3.syncGUID, null);
+        do_check_eq(a3.type, "extension");
+        do_check_eq(a3.version, "1.0");
+        do_check_eq(a3.name, "Real Test 4");
+        do_check_true(a3.isActive);
+        do_check_false(a3.appDisabled);
+        do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+        do_check_true(do_get_addon("test_install3").exists());
+        a3.uninstall();
+        do_execute_soon(run_test_8);
+      });
+    });
+  }));
+}
+
+function run_test_8() {
+  restartManager();
+
+  AddonManager.addInstallListener(InstallListener);
+  AddonManager.addAddonListener(AddonListener);
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install3"), function(install) {
+    do_check_true(install.addon.isCompatible);
+
+    prepare_test({
+      "addon3@tests.mozilla.org": [
+        "onInstalling"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], callback_soon(check_test_8));
+    install.install();
+  });
+}
+
+function check_test_8() {
+  restartManager();
+
+  AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+    do_check_neq(a3, null);
+    do_check_neq(a3.syncGUID, null);
+    do_check_eq(a3.type, "extension");
+    do_check_eq(a3.version, "1.0");
+    do_check_eq(a3.name, "Real Test 4");
+    do_check_true(a3.isActive);
+    do_check_false(a3.appDisabled);
+    do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+    do_check_true(do_get_addon("test_install3").exists());
+    a3.uninstall();
+    do_execute_soon(run_test_9);
+  });
+}
+
+// Test that after cancelling a download it is removed from the active installs
+function run_test_9() {
+  restartManager();
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Real Test 4");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    AddonManager.getInstallsByTypes(null, function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      prepare_test({}, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+      ], check_test_9);
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Real Test 4", null, "1.0");
+}
+
+function check_test_9(install) {
+  prepare_test({}, [
+    "onDownloadCancelled"
+  ], function() {
+    let file = install.file;
+
+    // Allow the file removal to complete
+    do_execute_soon(function() {
+      AddonManager.getAllInstalls(function(activeInstalls) {
+        do_check_eq(activeInstalls.length, 0);
+        do_check_false(file.exists());
+
+        run_test_10();
+      });
+    });
+  });
+
+  install.cancel();
+}
+
+// Tests that after cancelling a pending install it is removed from the active
+// installs
+function run_test_10() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Real Test 4");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    AddonManager.getInstallsByTypes(null, function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      prepare_test({
+        "addon3@tests.mozilla.org": [
+          "onInstalling"
+        ]
+      }, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+        "onInstallStarted",
+        "onInstallEnded"
+      ], check_test_10);
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Real Test 4", null, "1.0");
+}
+
+function check_test_10(install) {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  }, [
+    "onInstallCancelled"
+  ]);
+
+  install.cancel();
+
+  ensure_test_completed();
+
+  AddonManager.getAllInstalls(callback_soon(function(activeInstalls) {
+    do_check_eq(activeInstalls.length, 0);
+
+    restartManager();
+
+    // Check that the install did not complete
+    AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+      do_check_eq(a3, null);
+
+      do_execute_soon(run_test_11);
+    });
+  }));
+}
+
+// Tests that a multi-package install shows up as multiple installs with the
+// correct sourceURI.
+function run_test_11() {
+  prepare_test({ }, [
+    "onNewInstall",
+    "onNewInstall",
+    "onNewInstall",
+    "onNewInstall",
+    "onNewInstall",
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install4"), function(install) {
+    ensure_test_completed();
+    do_check_neq(install, null);
+    do_check_neq(install.linkedInstalls, null);
+    do_check_eq(install.linkedInstalls.length, 5);
+
+    // Might be in any order so sort them based on ID
+    let installs = [install].concat(install.linkedInstalls);
+    installs.sort(function(a, b) {
+      if (a.state != b.state) {
+        if (a.state == AddonManager.STATE_DOWNLOAD_FAILED)
+          return 1;
+        else if (b.state == AddonManager.STATE_DOWNLOAD_FAILED)
+          return -1;
+      }
+
+      // Don't care what order the failed installs show up in
+      if (a.state == AddonManager.STATE_DOWNLOAD_FAILED)
+        return 0;
+
+      if (a.addon.id < b.addon.id)
+        return -1;
+      if (a.addon.id > b.addon.id)
+        return 1;
+      return 0;
+    });
+
+    // Comes from addon4.xpi and is made compatible by an update check
+    do_check_eq(installs[0].sourceURI, install.sourceURI);
+    do_check_eq(installs[0].addon.id, "addon4@tests.mozilla.org");
+    do_check_false(installs[0].addon.appDisabled);
+    do_check_eq(installs[0].version, "1.0");
+    do_check_eq(installs[0].name, "Multi Test 1");
+    do_check_eq(installs[0].state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(hasFlag(installs[0].addon.operationsRequiringRestart,
+                          AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+    // Comes from addon5.jar and is compatible by default
+    do_check_eq(installs[1].sourceURI, install.sourceURI);
+    do_check_eq(installs[1].addon.id, "addon5@tests.mozilla.org");
+    do_check_false(installs[1].addon.appDisabled);
+    do_check_eq(installs[1].version, "3.0");
+    do_check_eq(installs[1].name, "Multi Test 2");
+    do_check_eq(installs[1].state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(hasFlag(installs[1].addon.operationsRequiringRestart,
+                          AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+    // Comes from addon6.xpi and would be incompatible with strict compat enabled
+    do_check_eq(installs[2].sourceURI, install.sourceURI);
+    do_check_eq(installs[2].addon.id, "addon6@tests.mozilla.org");
+    do_check_false(installs[2].addon.appDisabled);
+    do_check_eq(installs[2].version, "2.0");
+    do_check_eq(installs[2].name, "Multi Test 3");
+    do_check_eq(installs[2].state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(hasFlag(installs[2].addon.operationsRequiringRestart,
+                           AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+    // Comes from addon7.jar and is made compatible by an update check
+    do_check_eq(installs[3].sourceURI, install.sourceURI);
+    do_check_eq(installs[3].addon.id, "addon7@tests.mozilla.org");
+    do_check_false(installs[3].addon.appDisabled);
+    do_check_eq(installs[3].version, "5.0");
+    do_check_eq(installs[3].name, "Multi Test 4");
+    do_check_eq(installs[3].state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(hasFlag(installs[3].addon.operationsRequiringRestart,
+                          AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+    do_check_eq(installs[4].state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(installs[4].error, AddonManager.ERROR_CORRUPT_FILE);
+
+    do_check_eq(installs[5].state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(installs[5].error, AddonManager.ERROR_CORRUPT_FILE);
+
+    AddonManager.getAllInstalls(function(aInstalls) {
+      do_check_eq(aInstalls.length, 4);
+
+      prepare_test({
+        "addon4@tests.mozilla.org": [
+          "onInstalling"
+        ],
+        "addon5@tests.mozilla.org": [
+          "onInstalling"
+        ],
+        "addon6@tests.mozilla.org": [
+          "onInstalling"
+        ],
+        "addon7@tests.mozilla.org": [
+          "onInstalling"
+        ]
+      }, {
+        "addon4@tests.mozilla.org": [
+          "onInstallStarted",
+          "onInstallEnded"
+        ],
+        "addon5@tests.mozilla.org": [
+          "onInstallStarted",
+          "onInstallEnded"
+        ],
+        "addon6@tests.mozilla.org": [
+          "onInstallStarted",
+          "onInstallEnded"
+        ],
+        "addon7@tests.mozilla.org": [
+          "onInstallStarted",
+          "onInstallEnded"
+        ]
+      }, callback_soon(check_test_11));
+
+      installs[0].install();
+      installs[1].install();
+      installs[3].install();
+
+      // Note that we install addon6 last. Since it doesn't need a restart to
+      // install it completes asynchronously which would otherwise make the
+      // onInstallStarted/onInstallEnded events go out of sequence unless this
+      // is the last install operation
+      installs[2].install();
+    });
+  });
+}
+
+function check_test_11() {
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org"],
+                               function([a4, a5, a6, a7]) {
+    do_check_neq(a4, null);
+    do_check_neq(a5, null);
+    do_check_neq(a6, null);
+    do_check_neq(a7, null);
+
+    a4.uninstall();
+    a5.uninstall();
+    a6.uninstall();
+    a7.uninstall();
+
+    do_execute_soon(run_test_12);
+  });
+}
+
+// Same as test 11 but for a remote XPI
+function run_test_12() {
+  restartManager();
+
+  prepare_test({ }, [
+    "onNewInstall",
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install4.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    gInstall = install;
+
+    ensure_test_completed();
+    do_check_neq(install, null);
+    do_check_eq(install.linkedInstalls, null);
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    prepare_test({
+      "addon4@tests.mozilla.org": [
+        "onInstalling"
+      ],
+      "addon5@tests.mozilla.org": [
+        "onInstalling"
+      ],
+      "addon6@tests.mozilla.org": [
+        "onInstalling"
+      ],
+      "addon7@tests.mozilla.org": [
+        "onInstalling"
+      ]
+    }, {
+      "NO_ID": [
+        "onDownloadStarted",
+        "onNewInstall",
+        "onNewInstall",
+        "onNewInstall",
+        "onNewInstall",
+        "onNewInstall",
+        "onDownloadEnded"
+      ],
+      "addon4@tests.mozilla.org": [
+        "onInstallStarted",
+        "onInstallEnded"
+      ],
+      "addon5@tests.mozilla.org": [
+        "onInstallStarted",
+        "onInstallEnded"
+      ],
+      "addon6@tests.mozilla.org": [
+        "onInstallStarted",
+        "onInstallEnded"
+      ],
+      "addon7@tests.mozilla.org": [
+        "onInstallStarted",
+        "onInstallEnded"
+      ]
+    }, callback_soon(check_test_12));
+    install.install();
+  }, "application/x-xpinstall", null, "Multi Test 4");
+}
+
+function check_test_12() {
+  do_check_eq(gInstall.linkedInstalls.length, 5);
+
+  // Might be in any order so sort them based on ID
+  let installs = [gInstall].concat(gInstall.linkedInstalls);
+  installs.sort(function(a, b) {
+    if (a.state != b.state) {
+      if (a.state == AddonManager.STATE_DOWNLOAD_FAILED)
+        return 1;
+      else if (b.state == AddonManager.STATE_DOWNLOAD_FAILED)
+        return -1;
+    }
+
+    // Don't care what order the failed installs show up in
+    if (a.state == AddonManager.STATE_DOWNLOAD_FAILED)
+      return 0;
+
+    if (a.addon.id < b.addon.id)
+      return -1;
+    if (a.addon.id > b.addon.id)
+      return 1;
+    return 0;
+  });
+
+  // Comes from addon4.xpi and is made compatible by an update check
+  do_check_eq(installs[0].sourceURI, gInstall.sourceURI);
+  do_check_eq(installs[0].addon.id, "addon4@tests.mozilla.org");
+  do_check_false(installs[0].addon.appDisabled);
+  do_check_eq(installs[0].version, "1.0");
+  do_check_eq(installs[0].name, "Multi Test 1");
+  do_check_eq(installs[0].state, AddonManager.STATE_INSTALLED);
+
+  // Comes from addon5.jar and is compatible by default
+  do_check_eq(installs[1].sourceURI, gInstall.sourceURI);
+  do_check_eq(installs[1].addon.id, "addon5@tests.mozilla.org");
+  do_check_false(installs[1].addon.appDisabled);
+  do_check_eq(installs[1].version, "3.0");
+  do_check_eq(installs[1].name, "Multi Test 2");
+  do_check_eq(installs[1].state, AddonManager.STATE_INSTALLED);
+
+  // Comes from addon6.xpi and would be incompatible with strict compat enabled
+  do_check_eq(installs[2].sourceURI, gInstall.sourceURI);
+  do_check_eq(installs[2].addon.id, "addon6@tests.mozilla.org");
+  do_check_false(installs[2].addon.appDisabled);
+  do_check_eq(installs[2].version, "2.0");
+  do_check_eq(installs[2].name, "Multi Test 3");
+  do_check_eq(installs[2].state, AddonManager.STATE_INSTALLED);
+
+  // Comes from addon7.jar and is made compatible by an update check
+  do_check_eq(installs[3].sourceURI, gInstall.sourceURI);
+  do_check_eq(installs[3].addon.id, "addon7@tests.mozilla.org");
+  do_check_false(installs[3].addon.appDisabled);
+  do_check_eq(installs[3].version, "5.0");
+  do_check_eq(installs[3].name, "Multi Test 4");
+  do_check_eq(installs[3].state, AddonManager.STATE_INSTALLED);
+
+  do_check_eq(installs[4].state, AddonManager.STATE_DOWNLOAD_FAILED);
+  do_check_eq(installs[4].error, AddonManager.ERROR_CORRUPT_FILE);
+
+  do_check_eq(installs[5].state, AddonManager.STATE_DOWNLOAD_FAILED);
+  do_check_eq(installs[5].error, AddonManager.ERROR_CORRUPT_FILE);
+
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org"],
+                               function([a4, a5, a6, a7]) {
+    do_check_neq(a4, null);
+    do_check_neq(a5, null);
+    do_check_neq(a6, null);
+    do_check_neq(a7, null);
+
+    a4.uninstall();
+    a5.uninstall();
+    a6.uninstall();
+    a7.uninstall();
+
+    do_execute_soon(run_test_13);
+  });
+}
+
+
+// Tests that cancelling an upgrade leaves the original add-on's pendingOperations
+// correct
+function run_test_13() {
+  restartManager();
+
+  installAllFiles([do_get_addon("test_install2_1")], function() {
+    restartManager();
+
+    prepare_test({ }, [
+      "onNewInstall"
+    ]);
+
+    let url = "http://localhost:" + gPort + "/addons/test_install2_2.xpi";
+    AddonManager.getInstallForURL(url, function(install) {
+      ensure_test_completed();
+
+      do_check_neq(install, null);
+      do_check_eq(install.version, "3.0");
+      do_check_eq(install.name, "Test 3");
+      do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+      AddonManager.getAllInstalls(function(activeInstalls) {
+        do_check_eq(activeInstalls.length, 1);
+        do_check_eq(activeInstalls[0], install);
+        do_check_eq(install.existingAddon, null);
+
+        prepare_test({
+          "addon2@tests.mozilla.org": [
+            "onInstalling"
+          ]
+        }, [
+          "onDownloadStarted",
+          "onDownloadEnded",
+          "onInstallStarted",
+          "onInstallEnded",
+        ], check_test_13);
+        install.install();
+      });
+    }, "application/x-xpinstall", null, "Test 3", null, "3.0");
+  });
+}
+
+function check_test_13(install) {
+  ensure_test_completed();
+
+  do_check_eq(install.version, "3.0");
+  do_check_eq(install.name, "Real Test 3");
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_neq(install.existingAddon, null);
+  do_check_eq(install.existingAddon.id, "addon2@tests.mozilla.org");
+  do_check_eq(install.addon.install, install);
+
+  AddonManager.getAddonByID("addon2@tests.mozilla.org", callback_soon(function(olda2) {
+    do_check_neq(olda2, null);
+    do_check_true(hasFlag(olda2.pendingOperations, AddonManager.PENDING_UPGRADE));
+    do_check_eq(olda2.pendingUpgrade, install.addon);
+
+    do_check_true(hasFlag(install.addon.pendingOperations,
+                          AddonManager.PENDING_INSTALL));
+
+    prepare_test({
+      "addon2@tests.mozilla.org": [
+        "onOperationCancelled"
+      ]
+    }, [
+      "onInstallCancelled",
+    ]);
+
+    install.cancel();
+
+    do_check_false(hasFlag(install.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+    do_check_false(hasFlag(olda2.pendingOperations, AddonManager.PENDING_UPGRADE));
+    do_check_eq(olda2.pendingUpgrade, null);
+
+    restartManager();
+
+    // Check that the upgrade did not complete
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+      do_check_eq(a2.version, "2.0");
+
+      a2.uninstall();
+
+      do_execute_soon(run_test_14);
+    });
+  }));
+}
+
+// Check that cancelling the install from onDownloadStarted actually cancels it
+function run_test_14() {
+  restartManager();
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_eq(install.file, null);
+
+    prepare_test({ }, [
+      "onDownloadStarted"
+    ], check_test_14);
+    install.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_14(install) {
+  prepare_test({ }, [
+    "onDownloadCancelled"
+  ], function() {
+    let file = install.file;
+
+    install.addListener({
+      onDownloadProgress: function() {
+        do_throw("Download should not have continued");
+      },
+      onDownloadEnded: function() {
+        do_throw("Download should not have continued");
+      }
+    });
+
+    // Allow the listener to return to see if it continues downloading. The
+    // The listener only really tests if we give it time to see progress, the
+    // file check isn't ideal either
+    do_execute_soon(function() {
+      do_check_false(file.exists());
+
+      run_test_15();
+    });
+  });
+
+  // Wait for the channel to be ready to cancel
+  do_execute_soon(function() {
+    install.cancel();
+  });
+}
+
+// Checks that cancelling the install from onDownloadEnded actually cancels it
+function run_test_15() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_eq(install.file, null);
+
+    prepare_test({ }, [
+      "onDownloadStarted",
+      "onDownloadEnded"
+    ], check_test_15);
+    install.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_15(install) {
+  prepare_test({ }, [
+    "onDownloadCancelled"
+  ]);
+
+  install.cancel();
+
+  ensure_test_completed();
+
+  install.addListener({
+    onInstallStarted: function() {
+      do_throw("Install should not have continued");
+    }
+  });
+
+  // Allow the listener to return to see if it starts installing
+  do_execute_soon(run_test_16);
+}
+
+// Verify that the userDisabled value carries over to the upgrade by default
+function run_test_16() {
+  restartManager();
+
+  let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallStarted: function() {
+        do_check_false(aInstall.addon.userDisabled);
+        aInstall.addon.userDisabled = true;
+      },
+
+      onInstallEnded: function() {
+       do_execute_soon(function install2_1_ended() {
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_true(a2.userDisabled);
+          do_check_false(a2.isActive);
+
+          let url_2 = "http://localhost:" + gPort + "/addons/test_install2_2.xpi";
+          AddonManager.getInstallForURL(url_2, function(aInstall_2) {
+            aInstall_2.addListener({
+              onInstallEnded: function() {
+               do_execute_soon(function install2_2_ended() {
+                do_check_true(aInstall_2.addon.userDisabled);
+
+                restartManager();
+
+                AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2_2) {
+                  do_check_true(a2_2.userDisabled);
+                  do_check_false(a2_2.isActive);
+
+                  a2_2.uninstall();
+                  do_execute_soon(run_test_17);
+                });
+               });
+              }
+            });
+            aInstall_2.install();
+          }, "application/x-xpinstall");
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+// Verify that changing the userDisabled value before onInstallEnded works
+function run_test_17() {
+  restartManager();
+
+  let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function() {
+       do_execute_soon(function install2_1_ended2() {
+        do_check_false(aInstall.addon.userDisabled);
+
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_false(a2.userDisabled);
+          do_check_true(a2.isActive);
+
+          let url_2 = "http://localhost:" + gPort + "/addons/test_install2_2.xpi";
+          AddonManager.getInstallForURL(url_2, function(aInstall_2) {
+            aInstall_2.addListener({
+              onInstallStarted: function() {
+                do_check_false(aInstall_2.addon.userDisabled);
+                aInstall_2.addon.userDisabled = true;
+              },
+
+              onInstallEnded: function() {
+               do_execute_soon(function install2_2_ended2() {
+                restartManager();
+
+                AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2_2) {
+                  do_check_true(a2_2.userDisabled);
+                  do_check_false(a2_2.isActive);
+
+                  a2_2.uninstall();
+                  do_execute_soon(run_test_18);
+                });
+               });
+              }
+            });
+            aInstall_2.install();
+          }, "application/x-xpinstall");
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+// Verify that changing the userDisabled value before onInstallEnded works
+function run_test_18() {
+  restartManager();
+
+  let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallStarted: function() {
+        do_check_false(aInstall.addon.userDisabled);
+        aInstall.addon.userDisabled = true;
+      },
+
+      onInstallEnded: function() {
+       do_execute_soon(function install_2_1_ended3() {
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_true(a2.userDisabled);
+          do_check_false(a2.isActive);
+
+          let url_2 = "http://localhost:" + gPort + "/addons/test_install2_2.xpi";
+          AddonManager.getInstallForURL(url_2, function(aInstall_2) {
+            aInstall_2.addListener({
+              onInstallStarted: function() {
+                do_check_true(aInstall_2.addon.userDisabled);
+                aInstall_2.addon.userDisabled = false;
+              },
+
+              onInstallEnded: function() {
+               do_execute_soon(function install_2_2_ended3() {
+                restartManager();
+
+                AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2_2) {
+                  do_check_false(a2_2.userDisabled);
+                  do_check_true(a2_2.isActive);
+
+                  a2_2.uninstall();
+                  do_execute_soon(run_test_18_1);
+                });
+               });
+              }
+            });
+            aInstall_2.install();
+          }, "application/x-xpinstall");
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+
+// Checks that metadata is not stored if the pref is set to false
+function run_test_18_1() {
+  restartManager();
+
+  Services.prefs.setBoolPref("extensions.getAddons.cache.enabled", true);
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS,
+                             "http://localhost:" + gPort + "/data/test_install.xml");
+
+  Services.prefs.setBoolPref("extensions.addon2@tests.mozilla.org.getAddons.cache.enabled", false);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function(unused, aAddon) {
+       do_execute_soon(function test18_1_install_ended() {
+        do_check_neq(aAddon.fullDescription, "Repository description");
+
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_neq(a2.fullDescription, "Repository description");
+
+          a2.uninstall();
+          do_execute_soon(run_test_19);
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+// Checks that metadata is downloaded for new installs and is visible before and
+// after restart
+function run_test_19() {
+  restartManager();
+  Services.prefs.setBoolPref("extensions.addon2@tests.mozilla.org.getAddons.cache.enabled", true);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function(unused, aAddon) {
+       do_execute_soon(function test19_install_ended() {
+        do_check_eq(aAddon.fullDescription, "Repository description");
+
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_eq(a2.fullDescription, "Repository description");
+
+          a2.uninstall();
+          do_execute_soon(run_test_20);
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+// Do the same again to make sure it works when the data is already in the cache
+function run_test_20() {
+  restartManager();
+
+  let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function(unused, aAddon) {
+       do_execute_soon(function test20_install_ended() {
+        do_check_eq(aAddon.fullDescription, "Repository description");
+
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_eq(a2.fullDescription, "Repository description");
+
+          a2.uninstall();
+          do_execute_soon(run_test_21);
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+// Verify that installing an add-on that is already pending install cancels the
+// first install
+function run_test_21() {
+  restartManager();
+  Services.prefs.setBoolPref("extensions.getAddons.cache.enabled", false);
+
+  installAllFiles([do_get_addon("test_install2_1")], function() {
+    AddonManager.getAllInstalls(function(aInstalls) {
+      do_check_eq(aInstalls.length, 1);
+
+      prepare_test({
+        "addon2@tests.mozilla.org": [
+          "onOperationCancelled",
+          "onInstalling"
+        ]
+      }, [
+        "onNewInstall",
+        "onDownloadStarted",
+        "onDownloadEnded",
+        "onInstallStarted",
+        "onInstallCancelled",
+        "onInstallEnded",
+      ], check_test_21);
+
+      let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+      AddonManager.getInstallForURL(url, function(aInstall) {
+        aInstall.install();
+      }, "application/x-xpinstall");
+    });
+  });
+}
+
+function check_test_21(aInstall) {
+  AddonManager.getAllInstalls(callback_soon(function(aInstalls) {
+    do_check_eq(aInstalls.length, 1);
+    do_check_eq(aInstalls[0], aInstall);
+
+    prepare_test({
+      "addon2@tests.mozilla.org": [
+        "onOperationCancelled"
+      ]
+    }, [
+      "onInstallCancelled",
+    ]);
+
+    aInstall.cancel();
+
+    ensure_test_completed();
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+      do_check_eq(a2, null);
+
+      run_test_22();
+    });
+  }));
+}
+
+// Tests that an install can be restarted after being cancelled
+function run_test_22() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    ensure_test_completed();
+
+    do_check_neq(aInstall, null);
+    do_check_eq(aInstall.state, AddonManager.STATE_AVAILABLE);
+
+    prepare_test({}, [
+      "onDownloadStarted",
+      "onDownloadEnded",
+    ], check_test_22);
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_22(aInstall) {
+  prepare_test({}, [
+    "onDownloadCancelled"
+  ]);
+
+  aInstall.cancel();
+
+  ensure_test_completed();
+
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded"
+  ], finish_test_22);
+
+  aInstall.install();
+}
+
+function finish_test_22(aInstall) {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  }, [
+    "onInstallCancelled"
+  ]);
+
+  aInstall.cancel();
+
+  ensure_test_completed();
+
+  run_test_23();
+}
+
+// Tests that an install can be restarted after being cancelled when a hash
+// was provided
+function run_test_23() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    ensure_test_completed();
+
+    do_check_neq(aInstall, null);
+    do_check_eq(aInstall.state, AddonManager.STATE_AVAILABLE);
+
+    prepare_test({}, [
+      "onDownloadStarted",
+      "onDownloadEnded",
+    ], check_test_23);
+    aInstall.install();
+  }, "application/x-xpinstall", do_get_addon_hash("test_install3"));
+}
+
+function check_test_23(aInstall) {
+  prepare_test({}, [
+    "onDownloadCancelled"
+  ]);
+
+  aInstall.cancel();
+
+  ensure_test_completed();
+
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded"
+  ], finish_test_23);
+
+  aInstall.install();
+}
+
+function finish_test_23(aInstall) {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  }, [
+    "onInstallCancelled"
+  ]);
+
+  aInstall.cancel();
+
+  ensure_test_completed();
+
+  run_test_24();
+}
+
+// Tests that an install with a bad hash can be restarted after it fails, though
+// it will only fail again
+function run_test_24() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    ensure_test_completed();
+
+    do_check_neq(aInstall, null);
+    do_check_eq(aInstall.state, AddonManager.STATE_AVAILABLE);
+
+    prepare_test({}, [
+      "onDownloadStarted",
+      "onDownloadFailed",
+    ], check_test_24);
+    aInstall.install();
+  }, "application/x-xpinstall", "sha1:foo");
+}
+
+function check_test_24(aInstall) {
+  prepare_test({ }, [
+    "onDownloadStarted",
+    "onDownloadFailed"
+  ], run_test_25);
+
+  aInstall.install();
+}
+
+// Tests that installs with a hash for a local file work
+function run_test_25() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = Services.io.newFileURI(do_get_addon("test_install3")).spec;
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    ensure_test_completed();
+
+    do_check_neq(aInstall, null);
+    do_check_eq(aInstall.state, AddonManager.STATE_DOWNLOADED);
+    do_check_eq(aInstall.error, 0);
+
+    prepare_test({ }, [
+      "onDownloadCancelled"
+    ]);
+
+    aInstall.cancel();
+
+    ensure_test_completed();
+
+    run_test_26();
+  }, "application/x-xpinstall", do_get_addon_hash("test_install3"));
+}
+
+function run_test_26() {
+  prepare_test({ }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadCancelled"
+  ]);
+
+  let observerService = AM_Cc["@mozilla.org/network/http-activity-distributor;1"].
+                        getService(AM_Ci.nsIHttpActivityDistributor);
+  observerService.addObserver({
+    observeActivity: function(aChannel, aType, aSubtype, aTimestamp, aSizeData,
+                              aStringData) {
+      aChannel.QueryInterface(AM_Ci.nsIChannel);
+      // Wait for the final event for the redirected URL
+      if (aChannel.URI.spec != "http://localhost:" + gPort + "/addons/test_install1.xpi" ||
+          aType != AM_Ci.nsIHttpActivityObserver.ACTIVITY_TYPE_HTTP_TRANSACTION ||
+          aSubtype != AM_Ci.nsIHttpActivityObserver.ACTIVITY_SUBTYPE_TRANSACTION_CLOSE)
+        return;
+
+      // Request should have been cancelled
+      do_check_eq(aChannel.status, Components.results.NS_BINDING_ABORTED);
+
+      observerService.removeObserver(this);
+
+      run_test_27();
+    }
+  });
+
+  let url = "http://localhost:" + gPort + "/redirect?/addons/test_install1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onDownloadProgress: function(aDownloadProgressInstall) {
+        aDownloadProgressInstall.cancel();
+      }
+    });
+
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+
+// Tests that an install can be restarted during onDownloadCancelled after being
+// cancelled in mid-download
+function run_test_27() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    ensure_test_completed();
+
+    do_check_neq(aInstall, null);
+    do_check_eq(aInstall.state, AddonManager.STATE_AVAILABLE);
+
+    aInstall.addListener({
+      onDownloadProgress: function() {
+        aInstall.removeListener(this);
+        aInstall.cancel();
+      }
+    });
+
+    prepare_test({}, [
+      "onDownloadStarted",
+      "onDownloadCancelled",
+    ], check_test_27);
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_27(aInstall) {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded"
+  ], finish_test_27);
+
+  let file = aInstall.file;
+  aInstall.install();
+  do_check_neq(file.path, aInstall.file.path);
+  do_check_false(file.exists());
+}
+
+function finish_test_27(aInstall) {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  }, [
+    "onInstallCancelled"
+  ]);
+
+  aInstall.cancel();
+
+  ensure_test_completed();
+
+  run_test_28();
+}
+
+// Tests that an install that isn't strictly compatible and has
+// binary components correctly has appDisabled set (see bug 702868).
+function run_test_28() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install5.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Real Test 5");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    AddonManager.getInstallsByTypes(null, function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      prepare_test({}, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+        "onInstallStarted"
+      ], check_test_28);
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Real Test 5", null, "1.0");
+}
+
+function check_test_28(install) {
+  ensure_test_completed();
+  do_check_eq(install.version, "1.0");
+  do_check_eq(install.name, "Real Test 5");
+  do_check_eq(install.state, AddonManager.STATE_INSTALLING);
+  do_check_eq(install.existingAddon, null);
+  do_check_false(install.addon.isCompatible);
+  do_check_true(install.addon.appDisabled);
+
+  prepare_test({}, [
+    "onInstallCancelled"
+  ], finish_test_28);
+  return false;
+}
+
+function finish_test_28(install) {
+  prepare_test({}, [
+    "onDownloadCancelled"
+  ], run_test_29);
+
+  install.cancel();
+}
+
+// Tests that an install with a matching compatibility override has appDisabled
+// set correctly.
+function run_test_29() {
+  Services.prefs.setBoolPref("extensions.getAddons.cache.enabled", true);
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:" + gPort + "/addons/test_install6.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Addon Test 6");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    AddonManager.getInstallsByTypes(null, function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      prepare_test({}, [
+        "onDownloadStarted",
+        "onDownloadEnded"
+      ], check_test_29);
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Addon Test 6", null, "1.0");
+}
+
+function check_test_29(install) {
+  // ensure_test_completed();
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+  do_check_neq(install.addon, null);
+  do_check_false(install.addon.isCompatible);
+  do_check_true(install.addon.appDisabled);
+
+  prepare_test({}, [
+    "onDownloadCancelled"
+  ], run_test_30);
+  install.cancel();
+  return false;
+}
+
+// Tests that a multi-package XPI with no add-ons inside shows up as a
+// corrupt file
+function run_test_30() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install7"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(install.error, AddonManager.ERROR_CORRUPT_FILE);
+    do_check_eq(install.linkedInstalls, null);
+
+    run_test_31();
+  });
+}
+
+// Tests that a multi-package XPI with no valid add-ons inside shows up as a
+// corrupt file
+function run_test_31() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install8"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(install.error, AddonManager.ERROR_CORRUPT_FILE);
+    do_check_eq(install.linkedInstalls, null);
+
+    end_test();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_install_from_sources.js b/toolkit/mozapps/webextensions/test/xpcshell/test_install_from_sources.js
new file mode 100644
index 000000000..18bb7d74e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_install_from_sources.js
@@ -0,0 +1,80 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const ID = "bootstrap1@tests.mozilla.org";
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+startupManager();
+
+BootstrapMonitor.init();
+
+// Partial list of bootstrap reasons from XPIProvider.jsm
+const BOOTSTRAP_REASONS = {
+  ADDON_INSTALL: 5,
+  ADDON_UPGRADE: 7,
+  ADDON_DOWNGRADE: 8,
+};
+
+// Install an unsigned add-on with no existing add-on present.
+// Restart and make sure it is still around.
+add_task(function*() {
+  let extInstallCalled = false;
+  AddonManager.addInstallListener({
+    onExternalInstall: (aInstall) => {
+      do_check_eq(aInstall.id, ID);
+      do_check_eq(aInstall.version, "1.0");
+      extInstallCalled = true;
+    },
+  });
+
+  let installingCalled = false;
+  let installedCalled = false;
+  AddonManager.addAddonListener({
+    onInstalling: (aInstall) => {
+      do_check_eq(aInstall.id, ID);
+      do_check_eq(aInstall.version, "1.0");
+      installingCalled = true;
+    },
+    onInstalled: (aInstall) => {
+      do_check_eq(aInstall.id, ID);
+      do_check_eq(aInstall.version, "1.0");
+      installedCalled = true;
+    },
+    onInstallStarted: (aInstall) => {
+      do_throw("onInstallStarted called unexpectedly");
+    }
+  });
+
+  yield AddonManager.installAddonFromSources(do_get_file("data/from_sources/"));
+
+  do_check_true(extInstallCalled);
+  do_check_true(installingCalled);
+  do_check_true(installedCalled);
+
+  let install = BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  equal(install.reason, BOOTSTRAP_REASONS.ADDON_INSTALL);
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  let addon = yield promiseAddonByID(ID);
+
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Bootstrap 1");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  yield promiseRestartManager();
+
+  install = BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  equal(install.reason, BOOTSTRAP_REASONS.ADDON_INSTALL);
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  yield promiseRestartManager();
+});
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_install_icons.js b/toolkit/mozapps/webextensions/test/xpcshell/test_install_icons.js
new file mode 100644
index 000000000..70f91c560
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_install_icons.js
@@ -0,0 +1,61 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// use httpserver to find an available port
+Components.utils.import("resource://testing-common/httpd.js");
+var gServer = new HttpServer();
+gServer.start(-1);
+gPort = gServer.identity.primaryPort;
+
+var addon_url = "http://localhost:" + gPort + "/test.xpi";
+var icon32_url = "http://localhost:" + gPort + "/icon.png";
+var icon64_url = "http://localhost:" + gPort + "/icon64.png";
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+
+  test_1();
+}
+
+function test_1() {
+  AddonManager.getInstallForURL(addon_url, function(aInstall) {
+    do_check_eq(aInstall.iconURL, null);
+    do_check_neq(aInstall.icons, null);
+    do_check_eq(aInstall.icons[32], undefined);
+    do_check_eq(aInstall.icons[64], undefined);
+    test_2();
+  }, "application/x-xpinstall", null, null, null, null, null);
+}
+
+function test_2() {
+  AddonManager.getInstallForURL(addon_url, function(aInstall) {
+    do_check_eq(aInstall.iconURL, icon32_url);
+    do_check_neq(aInstall.icons, null);
+    do_check_eq(aInstall.icons[32], icon32_url);
+    do_check_eq(aInstall.icons[64], undefined);
+    test_3();
+  }, "application/x-xpinstall", null, null, icon32_url, null, null);
+}
+
+function test_3() {
+  AddonManager.getInstallForURL(addon_url, function(aInstall) {
+    do_check_eq(aInstall.iconURL, icon32_url);
+    do_check_neq(aInstall.icons, null);
+    do_check_eq(aInstall.icons[32], icon32_url);
+    do_check_eq(aInstall.icons[64], undefined);
+    test_4();
+  }, "application/x-xpinstall", null, null, { "32": icon32_url }, null, null);
+}
+
+function test_4() {
+  AddonManager.getInstallForURL(addon_url, function(aInstall) {
+    do_check_eq(aInstall.iconURL, icon32_url);
+    do_check_neq(aInstall.icons, null);
+    do_check_eq(aInstall.icons[32], icon32_url);
+    do_check_eq(aInstall.icons[64], icon64_url);
+    do_execute_soon(do_test_finished);
+  }, "application/x-xpinstall", null, null, { "32": icon32_url, "64": icon64_url }, null, null);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_install_strictcompat.js b/toolkit/mozapps/webextensions/test/xpcshell/test_install_strictcompat.js
new file mode 100644
index 000000000..77f806ba2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_install_strictcompat.js
@@ -0,0 +1,1726 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-ons can be installed from XPI files
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+
+// install.rdf size, icon.png, icon64.png size
+const ADDON1_SIZE = 705 + 16 + 16;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/NetUtil.jsm");
+Cu.import("resource://testing-common/httpd.js");
+
+var testserver;
+var gInstallDate;
+var gInstall = null;
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, true);
+
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+  // Make sure we only register once despite multiple calls
+  AddonManager.addInstallListener(InstallListener);
+  AddonManager.addAddonListener(AddonListener);
+  AddonManager.addInstallListener(InstallListener);
+  AddonManager.addAddonListener(AddonListener);
+
+  // Create and configure the HTTP server.
+  testserver = new HttpServer();
+  testserver.registerDirectory("/addons/", do_get_file("addons"));
+  testserver.registerDirectory("/data/", do_get_file("data"));
+  testserver.registerPathHandler("/redirect", function(aRequest, aResponse) {
+    aResponse.setStatusLine(null, 301, "Moved Permanently");
+    let url = aRequest.host + ":" + aRequest.port + aRequest.queryString;
+    aResponse.setHeader("Location", "http://" + url);
+  });
+  testserver.start(4444);
+
+  do_test_pending();
+  run_test_1();
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+// Checks that an install from a local file proceeds as expected
+function run_test_1() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install1"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.linkedInstalls, null);
+    do_check_eq(install.type, "extension");
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Test 1");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(install.addon.hasResource("install.rdf"));
+    do_check_eq(install.addon.install, install);
+    do_check_eq(install.addon.size, ADDON1_SIZE);
+    do_check_true(hasFlag(install.addon.operationsRequiringRestart,
+                          AddonManager.OP_NEEDS_RESTART_INSTALL));
+    let file = do_get_addon("test_install1");
+    let uri = Services.io.newFileURI(file).spec;
+    do_check_eq(install.addon.getResourceURI("install.rdf").spec, "jar:" + uri + "!/install.rdf");
+    do_check_eq(install.addon.iconURL, "jar:" + uri + "!/icon.png");
+    do_check_eq(install.addon.icon64URL, "jar:" + uri + "!/icon64.png");
+    do_check_eq(install.iconURL, null);
+
+    do_check_eq(install.sourceURI.spec, uri);
+    do_check_eq(install.addon.sourceURI.spec, uri);
+
+    AddonManager.getAllInstalls(function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      AddonManager.getInstallsByTypes(["foo"], function(fooInstalls) {
+        do_check_eq(fooInstalls.length, 0);
+
+        AddonManager.getInstallsByTypes(["extension"], function(extensionInstalls) {
+          do_check_eq(extensionInstalls.length, 1);
+          do_check_eq(extensionInstalls[0], install);
+
+          prepare_test({
+            "addon1@tests.mozilla.org": [
+              "onInstalling"
+            ]
+          }, [
+            "onInstallStarted",
+            "onInstallEnded",
+          ], check_test_1);
+          install.install();
+        });
+      });
+    });
+  });
+}
+
+function check_test_1() {
+  ensure_test_completed();
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(olda1) {
+    do_check_eq(olda1, null);
+
+    AddonManager.getAddonsWithOperationsByTypes(null, callback_soon(function(pendingAddons) {
+      do_check_eq(pendingAddons.length, 1);
+      do_check_eq(pendingAddons[0].id, "addon1@tests.mozilla.org");
+      let uri = NetUtil.newURI(pendingAddons[0].iconURL);
+      if (uri instanceof AM_Ci.nsIJARURI) {
+        let jarURI = uri.QueryInterface(AM_Ci.nsIJARURI);
+        let archiveURI = jarURI.JARFile;
+        let archiveFile = archiveURI.QueryInterface(AM_Ci.nsIFileURL).file;
+        let zipReader = Cc["@mozilla.org/libjar/zip-reader;1"].
+                        createInstance(Ci.nsIZipReader);
+        try {
+          zipReader.open(archiveFile);
+          do_check_true(zipReader.hasEntry(jarURI.JAREntry));
+        }
+        finally {
+          zipReader.close();
+        }
+      }
+      else {
+        let iconFile = uri.QueryInterface(AM_Ci.nsIFileURL).file;
+        do_check_true(iconFile.exists());
+      }
+
+      // Make the pending install have a sensible date
+      let updateDate = Date.now();
+      let extURI = pendingAddons[0].getResourceURI("");
+      let ext = extURI.QueryInterface(AM_Ci.nsIFileURL).file;
+      setExtensionModifiedTime(ext, updateDate);
+
+      // The pending add-on cannot be disabled or enabled.
+      do_check_false(hasFlag(pendingAddons[0].permissions, AddonManager.PERM_CAN_ENABLE));
+      do_check_false(hasFlag(pendingAddons[0].permissions, AddonManager.PERM_CAN_DISABLE));
+
+      restartManager();
+
+      AddonManager.getAllInstalls(function(activeInstalls) {
+        do_check_eq(activeInstalls, 0);
+
+        AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+          do_check_neq(a1, null);
+          do_check_eq(a1.type, "extension");
+          do_check_eq(a1.version, "1.0");
+          do_check_eq(a1.name, "Test 1");
+          do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+          do_check_true(do_get_addon("test_install1").exists());
+          do_check_in_crash_annotation(a1.id, a1.version);
+          do_check_eq(a1.size, ADDON1_SIZE);
+
+          do_check_eq(a1.sourceURI.spec,
+                      Services.io.newFileURI(do_get_addon("test_install1")).spec);
+          let difference = a1.installDate.getTime() - updateDate;
+          if (Math.abs(difference) > MAX_TIME_DIFFERENCE)
+            do_throw("Add-on install time was out by " + difference + "ms");
+
+          difference = a1.updateDate.getTime() - updateDate;
+          if (Math.abs(difference) > MAX_TIME_DIFFERENCE)
+            do_throw("Add-on update time was out by " + difference + "ms");
+
+          do_check_true(a1.hasResource("install.rdf"));
+          do_check_false(a1.hasResource("foo.bar"));
+
+          let root_uri = do_get_addon_root_uri(profileDir, "addon1@tests.mozilla.org");
+          do_check_eq(a1.getResourceURI("install.rdf").spec, root_uri + "install.rdf");
+          do_check_eq(a1.iconURL, root_uri + "icon.png");
+          do_check_eq(a1.icon64URL, root_uri + "icon64.png");
+
+          a1.uninstall();
+          do_execute_soon(function() { run_test_2(a1) });
+        });
+      });
+    }));
+  });
+}
+
+// Tests that an install from a url downloads.
+function run_test_2(aAddon) {
+  let { id, version } = aAddon;
+  restartManager();
+  do_check_not_in_crash_annotation(id, version);
+
+  let url = "http://localhost:4444/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    do_check_neq(install, null);
+    do_check_eq(install.linkedInstalls, null);
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Test 2");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+    do_check_eq(install.iconURL, null);
+    do_check_eq(install.sourceURI.spec, url);
+
+    AddonManager.getAllInstalls(function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      prepare_test({}, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+      ], check_test_2);
+
+      install.addListener({
+        onDownloadProgress: function() {
+          do_execute_soon(function() {
+            Components.utils.forceGC();
+          });
+        }
+      });
+
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Test 2", null, "1.0");
+}
+
+function check_test_2(install) {
+  ensure_test_completed();
+  do_check_eq(install.version, "2.0");
+  do_check_eq(install.name, "Real Test 2");
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+  do_check_eq(install.addon.install, install);
+  do_check_true(hasFlag(install.addon.operationsRequiringRestart,
+                        AddonManager.OP_NEEDS_RESTART_INSTALL));
+  do_check_eq(install.iconURL, null);
+
+  // Pause the install here and start it again in run_test_3
+  do_execute_soon(function() { run_test_3(install); });
+  return false;
+}
+
+// Tests that the downloaded XPI installs ok
+function run_test_3(install) {
+  prepare_test({
+    "addon2@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onInstallStarted",
+    "onInstallEnded",
+  ], check_test_3);
+  install.install();
+}
+
+function check_test_3(aInstall) {
+  // Make the pending install have a sensible date
+  let updateDate = Date.now();
+  let extURI = aInstall.addon.getResourceURI("");
+  let ext = extURI.QueryInterface(AM_Ci.nsIFileURL).file;
+  setExtensionModifiedTime(ext, updateDate);
+
+  ensure_test_completed();
+  AddonManager.getAddonByID("addon2@tests.mozilla.org", callback_soon(function(olda2) {
+    do_check_eq(olda2, null);
+    restartManager();
+
+    AddonManager.getAllInstalls(function(installs) {
+      do_check_eq(installs, 0);
+
+      AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+        do_check_neq(a2, null);
+        do_check_eq(a2.type, "extension");
+        do_check_eq(a2.version, "2.0");
+        do_check_eq(a2.name, "Real Test 2");
+        do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+        do_check_true(do_get_addon("test_install2_1").exists());
+        do_check_in_crash_annotation(a2.id, a2.version);
+        do_check_eq(a2.sourceURI.spec,
+                    "http://localhost:4444/addons/test_install2_1.xpi");
+
+        let difference = a2.installDate.getTime() - updateDate;
+        if (Math.abs(difference) > MAX_TIME_DIFFERENCE)
+          do_throw("Add-on install time was out by " + difference + "ms");
+
+        difference = a2.updateDate.getTime() - updateDate;
+        if (Math.abs(difference) > MAX_TIME_DIFFERENCE)
+          do_throw("Add-on update time was out by " + difference + "ms");
+
+        gInstallDate = a2.installDate.getTime();
+
+        run_test_4();
+      });
+    });
+  }));
+}
+
+// Tests that installing a new version of an existing add-on works
+function run_test_4() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install2_2.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.version, "3.0");
+    do_check_eq(install.name, "Test 3");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    AddonManager.getAllInstalls(function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+      do_check_eq(install.existingAddon, null);
+
+      prepare_test({}, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+      ], check_test_4);
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Test 3", null, "3.0");
+}
+
+function check_test_4(install) {
+  ensure_test_completed();
+
+  do_check_eq(install.version, "3.0");
+  do_check_eq(install.name, "Real Test 3");
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+  do_check_neq(install.existingAddon);
+  do_check_eq(install.existingAddon.id, "addon2@tests.mozilla.org");
+  do_check_eq(install.addon.install, install);
+  do_check_true(hasFlag(install.addon.operationsRequiringRestart,
+                        AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+  run_test_5();
+  // Installation will continue when there is nothing returned.
+}
+
+// Continue installing the new version
+function run_test_5() {
+  prepare_test({
+    "addon2@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onInstallStarted",
+    "onInstallEnded",
+  ], check_test_5);
+}
+
+function check_test_5(install) {
+  ensure_test_completed();
+
+  do_check_eq(install.existingAddon.pendingUpgrade.install, install);
+
+  AddonManager.getAddonByID("addon2@tests.mozilla.org", function(olda2) {
+    do_check_neq(olda2, null);
+    do_check_true(hasFlag(olda2.pendingOperations, AddonManager.PENDING_UPGRADE));
+
+    AddonManager.getInstallsByTypes(null, callback_soon(function(installs) {
+      do_check_eq(installs.length, 1);
+      do_check_eq(installs[0].addon, olda2.pendingUpgrade);
+      restartManager();
+
+      AddonManager.getInstallsByTypes(null, function(installs2) {
+        do_check_eq(installs2.length, 0);
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_neq(a2, null);
+          do_check_eq(a2.type, "extension");
+          do_check_eq(a2.version, "3.0");
+          do_check_eq(a2.name, "Real Test 3");
+          do_check_true(a2.isActive);
+          do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+          do_check_true(do_get_addon("test_install2_2").exists());
+          do_check_in_crash_annotation(a2.id, a2.version);
+          do_check_eq(a2.sourceURI.spec,
+                      "http://localhost:4444/addons/test_install2_2.xpi");
+
+          do_check_eq(a2.installDate.getTime(), gInstallDate);
+          // Update date should be later (or the same if this test is too fast)
+          do_check_true(a2.installDate <= a2.updateDate);
+
+          a2.uninstall();
+          do_execute_soon(run_test_6);
+        });
+      });
+    }));
+  });
+}
+
+// Tests that an install that requires a compatibility update works
+function run_test_6() {
+  restartManager();
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Real Test 4");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    AddonManager.getInstallsByTypes(null, function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      prepare_test({}, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+      ], check_test_6);
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Real Test 4", null, "1.0");
+}
+
+function check_test_6(install) {
+  ensure_test_completed();
+  do_check_eq(install.version, "1.0");
+  do_check_eq(install.name, "Real Test 4");
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+  do_check_eq(install.existingAddon, null);
+  do_check_false(install.addon.appDisabled);
+  run_test_7();
+  return true;
+}
+
+// Continue the install
+function run_test_7() {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onInstallStarted",
+    "onInstallEnded",
+  ], check_test_7);
+}
+
+function check_test_7() {
+  ensure_test_completed();
+  AddonManager.getAddonByID("addon3@tests.mozilla.org", callback_soon(function(olda3) {
+    do_check_eq(olda3, null);
+    restartManager();
+
+    AddonManager.getAllInstalls(function(installs) {
+      do_check_eq(installs, 0);
+
+      AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+        do_check_neq(a3, null);
+        do_check_eq(a3.type, "extension");
+        do_check_eq(a3.version, "1.0");
+        do_check_eq(a3.name, "Real Test 4");
+        do_check_true(a3.isActive);
+        do_check_false(a3.appDisabled);
+        do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+        do_check_true(do_get_addon("test_install3").exists());
+        a3.uninstall();
+        do_execute_soon(run_test_8);
+      });
+    });
+  }));
+}
+
+function run_test_8() {
+  restartManager();
+
+  AddonManager.addInstallListener(InstallListener);
+  AddonManager.addAddonListener(AddonListener);
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install3"), function(install) {
+    do_check_true(install.addon.isCompatible);
+
+    prepare_test({
+      "addon3@tests.mozilla.org": [
+        "onInstalling"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], callback_soon(check_test_8));
+    install.install();
+  });
+}
+
+function check_test_8() {
+  restartManager();
+
+  AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+    do_check_neq(a3, null);
+    do_check_eq(a3.type, "extension");
+    do_check_eq(a3.version, "1.0");
+    do_check_eq(a3.name, "Real Test 4");
+    do_check_true(a3.isActive);
+    do_check_false(a3.appDisabled);
+    do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+    do_check_true(do_get_addon("test_install3").exists());
+    a3.uninstall();
+    do_execute_soon(run_test_9);
+  });
+}
+
+// Test that after cancelling a download it is removed from the active installs
+function run_test_9() {
+  restartManager();
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Real Test 4");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    AddonManager.getInstallsByTypes(null, function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      prepare_test({}, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+      ], check_test_9);
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Real Test 4", null, "1.0");
+}
+
+function check_test_9(install) {
+  prepare_test({}, [
+    "onDownloadCancelled"
+  ], function() {
+    let file = install.file;
+
+    // Allow the file removal to complete
+    do_execute_soon(function() {
+      AddonManager.getAllInstalls(function(activeInstalls) {
+        do_check_eq(activeInstalls.length, 0);
+        do_check_false(file.exists());
+
+        run_test_10();
+      });
+    });
+  });
+
+  install.cancel();
+}
+
+// Tests that after cancelling a pending install it is removed from the active
+// installs
+function run_test_10() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Real Test 4");
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    AddonManager.getInstallsByTypes(null, function(activeInstalls) {
+      do_check_eq(activeInstalls.length, 1);
+      do_check_eq(activeInstalls[0], install);
+
+      prepare_test({
+        "addon3@tests.mozilla.org": [
+          "onInstalling"
+        ]
+      }, [
+        "onDownloadStarted",
+        "onDownloadEnded",
+        "onInstallStarted",
+        "onInstallEnded"
+      ], check_test_10);
+      install.install();
+    });
+  }, "application/x-xpinstall", null, "Real Test 4", null, "1.0");
+}
+
+function check_test_10(install) {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  }, [
+    "onInstallCancelled"
+  ]);
+
+  install.cancel();
+
+  ensure_test_completed();
+
+  AddonManager.getAllInstalls(callback_soon(function(activeInstalls) {
+    do_check_eq(activeInstalls.length, 0);
+
+    restartManager();
+
+    // Check that the install did not complete
+    AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+      do_check_eq(a3, null);
+
+      run_test_11();
+    });
+  }));
+}
+
+// Tests that a multi-package install shows up as multiple installs with the
+// correct sourceURI.
+function run_test_11() {
+  prepare_test({ }, [
+    "onNewInstall",
+    "onNewInstall",
+    "onNewInstall",
+    "onNewInstall",
+    "onNewInstall",
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install4"), function(install) {
+    ensure_test_completed();
+    do_check_neq(install, null);
+    do_check_neq(install.linkedInstalls, null);
+    do_check_eq(install.linkedInstalls.length, 5);
+
+    // Might be in any order so sort them based on ID
+    let installs = [install].concat(install.linkedInstalls);
+    installs.sort(function(a, b) {
+      if (a.state != b.state) {
+        if (a.state == AddonManager.STATE_DOWNLOAD_FAILED)
+          return 1;
+        else if (b.state == AddonManager.STATE_DOWNLOAD_FAILED)
+          return -1;
+      }
+
+      // Don't care what order the failed installs show up in
+      if (a.state == AddonManager.STATE_DOWNLOAD_FAILED)
+        return 0;
+
+      if (a.addon.id < b.addon.id)
+        return -1;
+      if (a.addon.id > b.addon.id)
+        return 1;
+      return 0;
+    });
+
+    // Comes from addon4.xpi and is made compatible by an update check
+    do_check_eq(installs[0].sourceURI, install.sourceURI);
+    do_check_eq(installs[0].addon.id, "addon4@tests.mozilla.org");
+    do_check_false(installs[0].addon.appDisabled);
+    do_check_eq(installs[0].version, "1.0");
+    do_check_eq(installs[0].name, "Multi Test 1");
+    do_check_eq(installs[0].state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(hasFlag(installs[0].addon.operationsRequiringRestart,
+                          AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+    // Comes from addon5.jar and is compatible by default
+    do_check_eq(installs[1].sourceURI, install.sourceURI);
+    do_check_eq(installs[1].addon.id, "addon5@tests.mozilla.org");
+    do_check_false(installs[1].addon.appDisabled);
+    do_check_eq(installs[1].version, "3.0");
+    do_check_eq(installs[1].name, "Multi Test 2");
+    do_check_eq(installs[1].state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(hasFlag(installs[1].addon.operationsRequiringRestart,
+                          AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+    // Comes from addon6.xpi and is incompatible
+    do_check_eq(installs[2].sourceURI, install.sourceURI);
+    do_check_eq(installs[2].addon.id, "addon6@tests.mozilla.org");
+    do_check_true(installs[2].addon.appDisabled);
+    do_check_eq(installs[2].version, "2.0");
+    do_check_eq(installs[2].name, "Multi Test 3");
+    do_check_eq(installs[2].state, AddonManager.STATE_DOWNLOADED);
+    do_check_false(hasFlag(installs[2].addon.operationsRequiringRestart,
+                           AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+    // Comes from addon7.jar and is made compatible by an update check
+    do_check_eq(installs[3].sourceURI, install.sourceURI);
+    do_check_eq(installs[3].addon.id, "addon7@tests.mozilla.org");
+    do_check_false(installs[3].addon.appDisabled);
+    do_check_eq(installs[3].version, "5.0");
+    do_check_eq(installs[3].name, "Multi Test 4");
+    do_check_eq(installs[3].state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(hasFlag(installs[3].addon.operationsRequiringRestart,
+                          AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+    do_check_eq(installs[4].state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(installs[4].error, AddonManager.ERROR_CORRUPT_FILE);
+
+    do_check_eq(installs[5].state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(installs[5].error, AddonManager.ERROR_CORRUPT_FILE);
+
+    AddonManager.getAllInstalls(function(aInstalls) {
+      do_check_eq(aInstalls.length, 4);
+
+      prepare_test({
+        "addon4@tests.mozilla.org": [
+          "onInstalling"
+        ],
+        "addon5@tests.mozilla.org": [
+          "onInstalling"
+        ],
+        "addon6@tests.mozilla.org": [
+          ["onInstalling", false],
+          "onInstalled"
+        ],
+        "addon7@tests.mozilla.org": [
+          "onInstalling"
+        ]
+      }, {
+        "addon4@tests.mozilla.org": [
+          "onInstallStarted",
+          "onInstallEnded"
+        ],
+        "addon5@tests.mozilla.org": [
+          "onInstallStarted",
+          "onInstallEnded"
+        ],
+        "addon6@tests.mozilla.org": [
+          "onInstallStarted",
+          "onInstallEnded"
+        ],
+        "addon7@tests.mozilla.org": [
+          "onInstallStarted",
+          "onInstallEnded"
+        ]
+      }, callback_soon(check_test_11));
+
+      installs[0].install();
+      installs[1].install();
+      installs[3].install();
+
+      // Note that we install addon6 last. Since it doesn't need a restart to
+      // install it completes asynchronously which would otherwise make the
+      // onInstallStarted/onInstallEnded events go out of sequence unless this
+      // is the last install operation
+      installs[2].install();
+    });
+  });
+}
+
+function check_test_11() {
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org"],
+                               function([a4, a5, a6, a7]) {
+    do_check_neq(a4, null);
+    do_check_neq(a5, null);
+    do_check_neq(a6, null);
+    do_check_neq(a7, null);
+
+    a4.uninstall();
+    a5.uninstall();
+    a6.uninstall();
+    a7.uninstall();
+
+    do_execute_soon(run_test_12);
+  });
+}
+
+// Same as test 11 but for a remote XPI
+function run_test_12() {
+  restartManager();
+
+  prepare_test({ }, [
+    "onNewInstall",
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install4.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    gInstall = install;
+
+    ensure_test_completed();
+    do_check_neq(install, null);
+    do_check_eq(install.linkedInstalls, null);
+    do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+    prepare_test({
+      "addon4@tests.mozilla.org": [
+        "onInstalling"
+      ],
+      "addon5@tests.mozilla.org": [
+        "onInstalling"
+      ],
+      "addon6@tests.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ],
+      "addon7@tests.mozilla.org": [
+        "onInstalling"
+      ]
+    }, {
+      "NO_ID": [
+        "onDownloadStarted",
+        "onNewInstall",
+        "onNewInstall",
+        "onNewInstall",
+        "onNewInstall",
+        "onNewInstall",
+        "onDownloadEnded"
+      ],
+      "addon4@tests.mozilla.org": [
+        "onInstallStarted",
+        "onInstallEnded"
+      ],
+      "addon5@tests.mozilla.org": [
+        "onInstallStarted",
+        "onInstallEnded"
+      ],
+      "addon6@tests.mozilla.org": [
+        "onInstallStarted",
+        "onInstallEnded"
+      ],
+      "addon7@tests.mozilla.org": [
+        "onInstallStarted",
+        "onInstallEnded"
+      ]
+    }, callback_soon(check_test_12));
+    install.install();
+  }, "application/x-xpinstall", null, "Multi Test 4");
+}
+
+function check_test_12() {
+  do_check_eq(gInstall.linkedInstalls.length, 5);
+
+  // Might be in any order so sort them based on ID
+  let installs = [gInstall].concat(gInstall.linkedInstalls);
+  installs.sort(function(a, b) {
+    if (a.state != b.state) {
+      if (a.state == AddonManager.STATE_DOWNLOAD_FAILED)
+        return 1;
+      else if (b.state == AddonManager.STATE_DOWNLOAD_FAILED)
+        return -1;
+    }
+
+    // Don't care what order the failed installs show up in
+    if (a.state == AddonManager.STATE_DOWNLOAD_FAILED)
+      return 0;
+
+    if (a.addon.id < b.addon.id)
+      return -1;
+    if (a.addon.id > b.addon.id)
+      return 1;
+    return 0;
+  });
+
+  // Comes from addon4.xpi and is made compatible by an update check
+  do_check_eq(installs[0].sourceURI, gInstall.sourceURI);
+  do_check_eq(installs[0].addon.id, "addon4@tests.mozilla.org");
+  do_check_false(installs[0].addon.appDisabled);
+  do_check_eq(installs[0].version, "1.0");
+  do_check_eq(installs[0].name, "Multi Test 1");
+  do_check_eq(installs[0].state, AddonManager.STATE_INSTALLED);
+
+  // Comes from addon5.jar and is compatible by default
+  do_check_eq(installs[1].sourceURI, gInstall.sourceURI);
+  do_check_eq(installs[1].addon.id, "addon5@tests.mozilla.org");
+  do_check_false(installs[1].addon.appDisabled);
+  do_check_eq(installs[1].version, "3.0");
+  do_check_eq(installs[1].name, "Multi Test 2");
+  do_check_eq(installs[1].state, AddonManager.STATE_INSTALLED);
+
+  // Comes from addon6.xpi and is incompatible
+  do_check_eq(installs[2].sourceURI, gInstall.sourceURI);
+  do_check_eq(installs[2].addon.id, "addon6@tests.mozilla.org");
+  do_check_true(installs[2].addon.appDisabled);
+  do_check_eq(installs[2].version, "2.0");
+  do_check_eq(installs[2].name, "Multi Test 3");
+  do_check_eq(installs[2].state, AddonManager.STATE_INSTALLED);
+
+  // Comes from addon7.jar and is made compatible by an update check
+  do_check_eq(installs[3].sourceURI, gInstall.sourceURI);
+  do_check_eq(installs[3].addon.id, "addon7@tests.mozilla.org");
+  do_check_false(installs[3].addon.appDisabled);
+  do_check_eq(installs[3].version, "5.0");
+  do_check_eq(installs[3].name, "Multi Test 4");
+  do_check_eq(installs[3].state, AddonManager.STATE_INSTALLED);
+
+  do_check_eq(installs[4].state, AddonManager.STATE_DOWNLOAD_FAILED);
+  do_check_eq(installs[4].error, AddonManager.ERROR_CORRUPT_FILE);
+
+  do_check_eq(installs[5].state, AddonManager.STATE_DOWNLOAD_FAILED);
+  do_check_eq(installs[5].error, AddonManager.ERROR_CORRUPT_FILE);
+
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org"],
+                               function([a4, a5, a6, a7]) {
+    do_check_neq(a4, null);
+    do_check_neq(a5, null);
+    do_check_neq(a6, null);
+    do_check_neq(a7, null);
+
+    a4.uninstall();
+    a5.uninstall();
+    a6.uninstall();
+    a7.uninstall();
+
+    do_execute_soon(run_test_13);
+  });
+}
+
+
+// Tests that cancelling an upgrade leaves the original add-on's pendingOperations
+// correct
+function run_test_13() {
+  restartManager();
+
+  installAllFiles([do_get_addon("test_install2_1")], function() {
+    restartManager();
+
+    prepare_test({ }, [
+      "onNewInstall"
+    ]);
+
+    let url = "http://localhost:4444/addons/test_install2_2.xpi";
+    AddonManager.getInstallForURL(url, function(install) {
+      ensure_test_completed();
+
+      do_check_neq(install, null);
+      do_check_eq(install.version, "3.0");
+      do_check_eq(install.name, "Test 3");
+      do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+
+      AddonManager.getAllInstalls(function(activeInstalls) {
+        do_check_eq(activeInstalls.length, 1);
+        do_check_eq(activeInstalls[0], install);
+        do_check_eq(install.existingAddon, null);
+
+        prepare_test({
+          "addon2@tests.mozilla.org": [
+            "onInstalling"
+          ]
+        }, [
+          "onDownloadStarted",
+          "onDownloadEnded",
+          "onInstallStarted",
+          "onInstallEnded",
+        ], check_test_13);
+        install.install();
+      });
+    }, "application/x-xpinstall", null, "Test 3", null, "3.0");
+  });
+}
+
+function check_test_13(install) {
+  ensure_test_completed();
+
+  do_check_eq(install.version, "3.0");
+  do_check_eq(install.name, "Real Test 3");
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_neq(install.existingAddon, null);
+  do_check_eq(install.existingAddon.id, "addon2@tests.mozilla.org");
+  do_check_eq(install.addon.install, install);
+
+  AddonManager.getAddonByID("addon2@tests.mozilla.org", callback_soon(function(olda2) {
+    do_check_neq(olda2, null);
+    do_check_true(hasFlag(olda2.pendingOperations, AddonManager.PENDING_UPGRADE));
+    do_check_eq(olda2.pendingUpgrade, install.addon);
+
+    do_check_true(hasFlag(install.addon.pendingOperations,
+                          AddonManager.PENDING_INSTALL));
+
+    prepare_test({
+      "addon2@tests.mozilla.org": [
+        "onOperationCancelled"
+      ]
+    }, [
+      "onInstallCancelled",
+    ]);
+
+    install.cancel();
+
+    do_check_false(hasFlag(install.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+    do_check_false(hasFlag(olda2.pendingOperations, AddonManager.PENDING_UPGRADE));
+    do_check_eq(olda2.pendingUpgrade, null);
+
+    restartManager();
+
+    // Check that the upgrade did not complete
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+      do_check_eq(a2.version, "2.0");
+
+      a2.uninstall();
+
+      do_execute_soon(run_test_14);
+    });
+  }));
+}
+
+// Check that cancelling the install from onDownloadStarted actually cancels it
+function run_test_14() {
+  restartManager();
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_eq(install.file, null);
+
+    prepare_test({ }, [
+      "onDownloadStarted"
+    ], check_test_14);
+    install.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_14(install) {
+  prepare_test({ }, [
+    "onDownloadCancelled"
+  ], function() {
+    let file = install.file;
+
+    install.addListener({
+      onDownloadProgress: function() {
+        do_throw("Download should not have continued");
+      },
+      onDownloadEnded: function() {
+        do_throw("Download should not have continued");
+      }
+    });
+
+    // Allow the listener to return to see if it continues downloading. The
+    // The listener only really tests if we give it time to see progress, the
+    // file check isn't ideal either
+    do_execute_soon(function() {
+      do_check_false(file.exists());
+
+      run_test_15();
+    });
+  });
+
+  // Wait for the channel to be ready to cancel
+  do_execute_soon(function() {
+    install.cancel();
+  });
+}
+
+// Checks that cancelling the install from onDownloadEnded actually cancels it
+function run_test_15() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(install) {
+    ensure_test_completed();
+
+    do_check_eq(install.file, null);
+
+    prepare_test({ }, [
+      "onDownloadStarted",
+      "onDownloadEnded"
+    ], check_test_15);
+    install.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_15(install) {
+  prepare_test({ }, [
+    "onDownloadCancelled"
+  ]);
+
+  install.cancel();
+
+  ensure_test_completed();
+
+  install.addListener({
+    onInstallStarted: function() {
+      do_throw("Install should not have continued");
+    }
+  });
+
+  // Allow the listener to return to see if it starts installing
+  do_execute_soon(run_test_16);
+}
+
+// Verify that the userDisabled value carries over to the upgrade by default
+function run_test_16() {
+  restartManager();
+
+  let url = "http://localhost:4444/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallStarted: function() {
+        do_check_false(aInstall.addon.userDisabled);
+        aInstall.addon.userDisabled = true;
+      },
+
+      onInstallEnded: function() {
+       do_execute_soon(function test16_install1() {
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_true(a2.userDisabled);
+          do_check_false(a2.isActive);
+
+          let url_2 = "http://localhost:4444/addons/test_install2_2.xpi";
+          AddonManager.getInstallForURL(url_2, function(aInstall_2) {
+            aInstall_2.addListener({
+              onInstallEnded: function() {
+               do_execute_soon(function test16_install2() {
+                do_check_true(aInstall_2.addon.userDisabled);
+
+                restartManager();
+
+                AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2_2) {
+                  do_check_true(a2_2.userDisabled);
+                  do_check_false(a2_2.isActive);
+
+                  a2_2.uninstall();
+                  do_execute_soon(run_test_17);
+                });
+               });
+              }
+            });
+            aInstall_2.install();
+          }, "application/x-xpinstall");
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+// Verify that changing the userDisabled value before onInstallEnded works
+function run_test_17() {
+  restartManager();
+
+  let url = "http://localhost:4444/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function() {
+       do_execute_soon(function() {
+        do_check_false(aInstall.addon.userDisabled);
+
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_false(a2.userDisabled);
+          do_check_true(a2.isActive);
+
+          let url_2 = "http://localhost:4444/addons/test_install2_2.xpi";
+          AddonManager.getInstallForURL(url_2, function(aInstall_2) {
+            aInstall_2.addListener({
+              onInstallStarted: function() {
+                do_check_false(aInstall_2.addon.userDisabled);
+                aInstall_2.addon.userDisabled = true;
+              },
+
+              onInstallEnded: function() {
+               do_execute_soon(function() {
+                restartManager();
+
+                AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2_2) {
+                  do_check_true(a2_2.userDisabled);
+                  do_check_false(a2_2.isActive);
+
+                  a2_2.uninstall();
+                  do_execute_soon(run_test_18);
+                });
+               });
+              }
+            });
+            aInstall_2.install();
+          }, "application/x-xpinstall");
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+// Verify that changing the userDisabled value before onInstallEnded works
+function run_test_18() {
+  restartManager();
+
+  let url = "http://localhost:4444/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallStarted: function() {
+        do_check_false(aInstall.addon.userDisabled);
+        aInstall.addon.userDisabled = true;
+      },
+
+      onInstallEnded: function() {
+       do_execute_soon(function test18_install1() {
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_true(a2.userDisabled);
+          do_check_false(a2.isActive);
+
+          let url_2 = "http://localhost:4444/addons/test_install2_2.xpi";
+          AddonManager.getInstallForURL(url_2, function(aInstall_2) {
+            aInstall_2.addListener({
+              onInstallStarted: function() {
+                do_check_true(aInstall_2.addon.userDisabled);
+                aInstall_2.addon.userDisabled = false;
+              },
+
+              onInstallEnded: function() {
+               do_execute_soon(function test18_install2() {
+                restartManager();
+
+                AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2_2) {
+                  do_check_false(a2_2.userDisabled);
+                  do_check_true(a2_2.isActive);
+
+                  a2_2.uninstall();
+                  do_execute_soon(run_test_18_1);
+                });
+               });
+              }
+            });
+            aInstall_2.install();
+          }, "application/x-xpinstall");
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+
+// Checks that metadata is not stored if the pref is set to false
+function run_test_18_1() {
+  restartManager();
+
+  Services.prefs.setBoolPref("extensions.getAddons.cache.enabled", true);
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS,
+                             "http://localhost:4444/data/test_install.xml");
+
+  Services.prefs.setBoolPref("extensions.addon2@tests.mozilla.org.getAddons.cache.enabled", false);
+
+  let url = "http://localhost:4444/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function(unused, aAddon) {
+       do_execute_soon(function test18_install() {
+        do_check_neq(aAddon.fullDescription, "Repository description");
+
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_neq(a2.fullDescription, "Repository description");
+
+          a2.uninstall();
+          do_execute_soon(run_test_19);
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+// Checks that metadata is downloaded for new installs and is visible before and
+// after restart
+function run_test_19() {
+  restartManager();
+  Services.prefs.setBoolPref("extensions.addon2@tests.mozilla.org.getAddons.cache.enabled", true);
+
+  let url = "http://localhost:4444/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function(unused, aAddon) {
+       do_execute_soon(function test19_install() {
+        do_check_eq(aAddon.fullDescription, "Repository description");
+
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_eq(a2.fullDescription, "Repository description");
+
+          a2.uninstall();
+          do_execute_soon(run_test_20);
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+// Do the same again to make sure it works when the data is already in the cache
+function run_test_20() {
+  restartManager();
+
+  let url = "http://localhost:4444/addons/test_install2_1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onInstallEnded: function(unused, aAddon) {
+       do_execute_soon(function test20_install() {
+        do_check_eq(aAddon.fullDescription, "Repository description");
+
+        restartManager();
+
+        AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+          do_check_eq(a2.fullDescription, "Repository description");
+
+          a2.uninstall();
+          do_execute_soon(run_test_21);
+        });
+       });
+      }
+    });
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+// Verify that installing an add-on that is already pending install cancels the
+// first install
+function run_test_21() {
+  restartManager();
+  Services.prefs.setBoolPref("extensions.getAddons.cache.enabled", false);
+
+  installAllFiles([do_get_addon("test_install2_1")], function() {
+    AddonManager.getAllInstalls(function(aInstalls) {
+      do_check_eq(aInstalls.length, 1);
+
+      prepare_test({
+        "addon2@tests.mozilla.org": [
+          "onOperationCancelled",
+          "onInstalling"
+        ]
+      }, [
+        "onNewInstall",
+        "onDownloadStarted",
+        "onDownloadEnded",
+        "onInstallStarted",
+        "onInstallCancelled",
+        "onInstallEnded",
+      ], check_test_21);
+
+      let url = "http://localhost:4444/addons/test_install2_1.xpi";
+      AddonManager.getInstallForURL(url, function(aInstall) {
+        aInstall.install();
+      }, "application/x-xpinstall");
+    });
+  });
+}
+
+function check_test_21(aInstall) {
+  AddonManager.getAllInstalls(callback_soon(function(aInstalls) {
+    do_check_eq(aInstalls.length, 1);
+    do_check_eq(aInstalls[0], aInstall);
+
+    prepare_test({
+      "addon2@tests.mozilla.org": [
+        "onOperationCancelled"
+      ]
+    }, [
+      "onInstallCancelled",
+    ]);
+
+    aInstall.cancel();
+
+    ensure_test_completed();
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+      do_check_eq(a2, null);
+
+      run_test_22();
+    });
+  }));
+}
+
+// Tests that an install can be restarted after being cancelled
+function run_test_22() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    ensure_test_completed();
+
+    do_check_neq(aInstall, null);
+    do_check_eq(aInstall.state, AddonManager.STATE_AVAILABLE);
+
+    prepare_test({}, [
+      "onDownloadStarted",
+      "onDownloadEnded",
+    ], check_test_22);
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_22(aInstall) {
+  prepare_test({}, [
+    "onDownloadCancelled"
+  ]);
+
+  aInstall.cancel();
+
+  ensure_test_completed();
+
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded"
+  ], finish_test_22);
+
+  aInstall.install();
+}
+
+function finish_test_22(aInstall) {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  }, [
+    "onInstallCancelled"
+  ]);
+
+  aInstall.cancel();
+
+  ensure_test_completed();
+
+  run_test_23();
+}
+
+// Tests that an install can be restarted after being cancelled when a hash
+// was provided
+function run_test_23() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    ensure_test_completed();
+
+    do_check_neq(aInstall, null);
+    do_check_eq(aInstall.state, AddonManager.STATE_AVAILABLE);
+
+    prepare_test({}, [
+      "onDownloadStarted",
+      "onDownloadEnded",
+    ], check_test_23);
+    aInstall.install();
+  }, "application/x-xpinstall", do_get_addon_hash("test_install3"));
+}
+
+function check_test_23(aInstall) {
+  prepare_test({}, [
+    "onDownloadCancelled"
+  ]);
+
+  aInstall.cancel();
+
+  ensure_test_completed();
+
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded"
+  ], finish_test_23);
+
+  aInstall.install();
+}
+
+function finish_test_23(aInstall) {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  }, [
+    "onInstallCancelled"
+  ]);
+
+  aInstall.cancel();
+
+  ensure_test_completed();
+
+  run_test_24();
+}
+
+// Tests that an install with a bad hash can be restarted after it fails, though
+// it will only fail again
+function run_test_24() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    ensure_test_completed();
+
+    do_check_neq(aInstall, null);
+    do_check_eq(aInstall.state, AddonManager.STATE_AVAILABLE);
+
+    prepare_test({}, [
+      "onDownloadStarted",
+      "onDownloadFailed",
+    ], check_test_24);
+    aInstall.install();
+  }, "application/x-xpinstall", "sha1:foo");
+}
+
+function check_test_24(aInstall) {
+  prepare_test({ }, [
+    "onDownloadStarted",
+    "onDownloadFailed"
+  ], run_test_25);
+
+  aInstall.install();
+}
+
+// Tests that installs with a hash for a local file work
+function run_test_25() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = Services.io.newFileURI(do_get_addon("test_install3")).spec;
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    ensure_test_completed();
+
+    do_check_neq(aInstall, null);
+    do_check_eq(aInstall.state, AddonManager.STATE_DOWNLOADED);
+    do_check_eq(aInstall.error, 0);
+
+    prepare_test({ }, [
+      "onDownloadCancelled"
+    ]);
+
+    aInstall.cancel();
+
+    ensure_test_completed();
+
+    run_test_26();
+  }, "application/x-xpinstall", do_get_addon_hash("test_install3"));
+}
+
+function run_test_26() {
+  prepare_test({ }, [
+    "onNewInstall",
+    "onDownloadStarted",
+    "onDownloadCancelled"
+  ]);
+
+  let observerService = AM_Cc["@mozilla.org/network/http-activity-distributor;1"].
+                        getService(AM_Ci.nsIHttpActivityDistributor);
+  observerService.addObserver({
+    observeActivity: function(aChannel, aType, aSubtype, aTimestamp, aSizeData,
+                              aStringData) {
+      aChannel.QueryInterface(AM_Ci.nsIChannel);
+      // Wait for the final event for the redirected URL
+      if (aChannel.URI.spec != "http://localhost:4444/addons/test_install1.xpi" ||
+          aType != AM_Ci.nsIHttpActivityObserver.ACTIVITY_TYPE_HTTP_TRANSACTION ||
+          aSubtype != AM_Ci.nsIHttpActivityObserver.ACTIVITY_SUBTYPE_TRANSACTION_CLOSE)
+        return;
+
+      // Request should have been cancelled
+      do_check_eq(aChannel.status, Components.results.NS_BINDING_ABORTED);
+
+      observerService.removeObserver(this);
+
+      run_test_27();
+    }
+  });
+
+  let url = "http://localhost:4444/redirect?/addons/test_install1.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    aInstall.addListener({
+      onDownloadProgress: function(aDownloadProgressInstall) {
+        aDownloadProgressInstall.cancel();
+      }
+    });
+
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+
+// Tests that an install can be restarted during onDownloadCancelled after being
+// cancelled in mid-download
+function run_test_27() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  let url = "http://localhost:4444/addons/test_install3.xpi";
+  AddonManager.getInstallForURL(url, function(aInstall) {
+    ensure_test_completed();
+
+    do_check_neq(aInstall, null);
+    do_check_eq(aInstall.state, AddonManager.STATE_AVAILABLE);
+
+    aInstall.addListener({
+      onDownloadProgress: function() {
+        aInstall.removeListener(this);
+        aInstall.cancel();
+      }
+    });
+
+    prepare_test({}, [
+      "onDownloadStarted",
+      "onDownloadCancelled",
+    ], check_test_27);
+    aInstall.install();
+  }, "application/x-xpinstall");
+}
+
+function check_test_27(aInstall) {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onInstalling"
+    ]
+  }, [
+    "onDownloadStarted",
+    "onDownloadEnded",
+    "onInstallStarted",
+    "onInstallEnded"
+  ], finish_test_27);
+
+  let file = aInstall.file;
+  aInstall.install();
+  do_check_neq(file.path, aInstall.file.path);
+  do_check_false(file.exists());
+}
+
+function finish_test_27(aInstall) {
+  prepare_test({
+    "addon3@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  }, [
+    "onInstallCancelled"
+  ]);
+
+  aInstall.cancel();
+
+  ensure_test_completed();
+
+  run_test_30();
+}
+
+// Tests that a multi-package XPI with no add-ons inside shows up as a
+// corrupt file
+function run_test_30() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install7"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(install.error, AddonManager.ERROR_CORRUPT_FILE);
+    do_check_eq(install.linkedInstalls, null);
+
+    run_test_31();
+  });
+}
+
+// Tests that a multi-package XPI with no valid add-ons inside shows up as a
+// corrupt file
+function run_test_31() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install8"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(install.error, AddonManager.ERROR_CORRUPT_FILE);
+    do_check_eq(install.linkedInstalls, null);
+
+    end_test();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_isDebuggable.js b/toolkit/mozapps/webextensions/test/xpcshell/test_isDebuggable.js
new file mode 100644
index 000000000..87f2856b0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_isDebuggable.js
@@ -0,0 +1,36 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+var ADDONS = [
+  "test_bootstrap2_1", // restartless addon
+  "test_bootstrap1_4", // old-school addon
+  "test_jetpack"       // sdk addon
+];
+
+var IDS = [
+  "bootstrap1@tests.mozilla.org",
+  "bootstrap2@tests.mozilla.org",
+  "jetpack@tests.mozilla.org"
+];
+
+function run_test() {
+  do_test_pending();
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  startupManager();
+  AddonManager.checkCompatibility = false;
+
+  installAllFiles(ADDONS.map(do_get_addon), function () {
+    restartManager();
+
+    AddonManager.getAddonsByIDs(IDS, function([a1, a2, a3]) {
+      do_check_eq(a1.isDebuggable, false);
+      do_check_eq(a2.isDebuggable, true);
+      do_check_eq(a3.isDebuggable, true);
+      do_test_finished();
+    });
+  }, true);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_isReady.js b/toolkit/mozapps/webextensions/test/xpcshell/test_isReady.js
new file mode 100644
index 000000000..6222398a7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_isReady.js
@@ -0,0 +1,49 @@
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* () {
+  equal(AddonManager.isReady, false, "isReady should be false before startup");
+
+  let gotStartupEvent = false;
+  let gotShutdownEvent = false;
+  let listener = {
+    onStartup() {
+      gotStartupEvent = true;
+    },
+    onShutdown() {
+      gotShutdownEvent = true;
+    },
+  };
+  AddonManager.addManagerListener(listener);
+
+  do_print("Starting manager...");
+  startupManager();
+  equal(AddonManager.isReady, true, "isReady should be true after startup");
+  equal(gotStartupEvent, true, "Should have seen onStartup event after startup");
+  equal(gotShutdownEvent, false, "Should not have seen onShutdown event before shutdown");
+
+  gotStartupEvent = false;
+  gotShutdownEvent = false;
+
+  do_print("Shutting down manager...");
+  let shutdownPromise = promiseShutdownManager();
+  equal(AddonManager.isReady, false, "isReady should be false when shutdown commences");
+  yield shutdownPromise;
+
+  equal(AddonManager.isReady, false, "isReady should be false after shutdown");
+  equal(gotStartupEvent, false, "Should not have seen onStartup event after shutdown");
+  equal(gotShutdownEvent, true, "Should have seen onShutdown event after shutdown");
+
+  AddonManager.addManagerListener(listener);
+  gotStartupEvent = false;
+  gotShutdownEvent = false;
+
+  do_print("Starting manager again...");
+  startupManager();
+  equal(AddonManager.isReady, true, "isReady should be true after repeat startup");
+  equal(gotStartupEvent, true, "Should have seen onStartup event after repeat startup");
+  equal(gotShutdownEvent, false, "Should not have seen onShutdown event before shutdown, following repeat startup");
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_json_updatecheck.js b/toolkit/mozapps/webextensions/test/xpcshell/test_json_updatecheck.js
new file mode 100644
index 000000000..adf789afb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_json_updatecheck.js
@@ -0,0 +1,372 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+"use strict";
+
+// This verifies that AddonUpdateChecker works correctly for JSON
+// update manifests, particularly for behavior which does not
+// cleanly overlap with RDF manifests.
+
+const TOOLKIT_ID = "toolkit@mozilla.org";
+const TOOLKIT_MINVERSION = "42.0a1";
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "42.0a2", "42.0a2");
+
+Components.utils.import("resource://gre/modules/addons/AddonUpdateChecker.jsm");
+
+let testserver = createHttpServer();
+gPort = testserver.identity.primaryPort;
+
+let gUpdateManifests = {};
+
+function mapManifest(aPath, aManifestData) {
+  gUpdateManifests[aPath] = aManifestData;
+  testserver.registerPathHandler(aPath, serveManifest);
+}
+
+function serveManifest(request, response) {
+  let manifest = gUpdateManifests[request.path];
+
+  response.setHeader("Content-Type", manifest.contentType, false);
+  response.write(manifest.data);
+}
+
+const extensionsDir = gProfD.clone();
+extensionsDir.append("extensions");
+
+
+function checkUpdates(aData) {
+  // Registers JSON update manifest for it with the testing server,
+  // checks for updates, and yields the list of updates on
+  // success.
+
+  let extension = aData.manifestExtension || "json";
+
+  let path = `/updates/${aData.id}.${extension}`;
+  let updateUrl = `http://localhost:${gPort}${path}`
+
+  let addonData = {};
+  if ("updates" in aData)
+    addonData.updates = aData.updates;
+
+  let manifestJSON = {
+    "addons": {
+      [aData.id]: addonData
+    }
+  };
+
+  mapManifest(path.replace(/\?.*/, ""),
+              { data: JSON.stringify(manifestJSON),
+                contentType: aData.contentType || "application/json" });
+
+
+  return new Promise((resolve, reject) => {
+    AddonUpdateChecker.checkForUpdates(aData.id, aData.updateKey, updateUrl, {
+      onUpdateCheckComplete: resolve,
+
+      onUpdateCheckError: function(status) {
+        reject(new Error("Update check failed with status " + status));
+      }
+    });
+  });
+}
+
+
+add_task(function* test_default_values() {
+  // Checks that the appropriate defaults are used for omitted values.
+
+  startupManager();
+
+  let updates = yield checkUpdates({
+    id: "updatecheck-defaults@tests.mozilla.org",
+    version: "0.1",
+    updates: [{
+      version: "0.2"
+    }]
+  });
+
+  equal(updates.length, 1);
+  let update = updates[0];
+
+  equal(update.targetApplications.length, 1);
+  let targetApp = update.targetApplications[0];
+
+  equal(targetApp.id, TOOLKIT_ID);
+  equal(targetApp.minVersion, TOOLKIT_MINVERSION);
+  equal(targetApp.maxVersion, "*");
+
+  equal(update.version, "0.2");
+  equal(update.multiprocessCompatible, true, "multiprocess_compatible flag");
+  equal(update.strictCompatibility, false, "inferred strictConpatibility flag");
+  equal(update.updateURL, null, "updateURL");
+  equal(update.updateHash, null, "updateHash");
+  equal(update.updateInfoURL, null, "updateInfoURL");
+
+  // If there's no applications property, we default to using one
+  // containing "gecko". If there is an applications property, but
+  // it doesn't contain "gecko", the update is skipped.
+  updates = yield checkUpdates({
+    id: "updatecheck-defaults@tests.mozilla.org",
+    version: "0.1",
+    updates: [{
+      version: "0.2",
+      applications: { "foo": {} }
+    }]
+  });
+
+  equal(updates.length, 0);
+
+  // Updates property is also optional. No updates, but also no error.
+  updates = yield checkUpdates({
+    id: "updatecheck-defaults@tests.mozilla.org",
+    version: "0.1",
+  });
+
+  equal(updates.length, 0);
+});
+
+
+add_task(function* test_explicit_values() {
+  // Checks that the appropriate explicit values are used when
+  // provided.
+
+  let updates = yield checkUpdates({
+    id: "updatecheck-explicit@tests.mozilla.org",
+    version: "0.1",
+    updates: [{
+      version: "0.2",
+      update_link: "https://example.com/foo.xpi",
+      update_hash: "sha256:0",
+      update_info_url: "https://example.com/update_info.html",
+      multiprocess_compatible: false,
+      applications: {
+        gecko: {
+          strict_min_version: "42.0a2.xpcshell",
+          strict_max_version: "43.xpcshell"
+        }
+      }
+    }]
+  });
+
+  equal(updates.length, 1);
+  let update = updates[0];
+
+  equal(update.targetApplications.length, 1);
+  let targetApp = update.targetApplications[0];
+
+  equal(targetApp.id, TOOLKIT_ID);
+  equal(targetApp.minVersion, "42.0a2.xpcshell");
+  equal(targetApp.maxVersion, "43.xpcshell");
+
+  equal(update.version, "0.2");
+  equal(update.multiprocessCompatible, false, "multiprocess_compatible flag");
+  equal(update.strictCompatibility, true, "inferred strictCompatibility flag");
+  equal(update.updateURL, "https://example.com/foo.xpi", "updateURL");
+  equal(update.updateHash, "sha256:0", "updateHash");
+  equal(update.updateInfoURL, "https://example.com/update_info.html", "updateInfoURL");
+});
+
+
+add_task(function* test_secure_hashes() {
+  // Checks that only secure hash functions are accepted for
+  // non-secure update URLs.
+
+  let hashFunctions = ["sha512",
+                       "sha256",
+                       "sha1",
+                       "md5",
+                       "md4",
+                       "xxx"];
+
+  let updateItems = hashFunctions.map((hash, idx) => ({
+    version: `0.${idx}`,
+    update_link: `http://localhost:${gPort}/updates/${idx}-${hash}.xpi`,
+    update_hash: `${hash}:08ac852190ecd81f40a514ea9299fe9143d9ab5e296b97e73fb2a314de49648a`,
+  }));
+
+  let { messages, result: updates } = yield promiseConsoleOutput(() => {
+    return checkUpdates({
+      id: "updatecheck-hashes@tests.mozilla.org",
+      version: "0.1",
+      updates: updateItems
+    });
+  });
+
+  equal(updates.length, hashFunctions.length);
+
+  updates = updates.filter(update => update.updateHash || update.updateURL);
+  equal(updates.length, 2, "expected number of update hashes were accepted");
+
+  ok(updates[0].updateHash.startsWith("sha512:"), "sha512 hash is present");
+  ok(updates[0].updateURL);
+
+  ok(updates[1].updateHash.startsWith("sha256:"), "sha256 hash is present");
+  ok(updates[1].updateURL);
+
+  messages = messages.filter(msg => /Update link.*not secure.*strong enough hash \(needs to be sha256 or sha512\)/.test(msg.message));
+  equal(messages.length, hashFunctions.length - 2, "insecure hashes generated the expected warning");
+});
+
+
+add_task(function* test_strict_compat() {
+  // Checks that strict compatibility is enabled for strict max
+  // versions other than "*", but not for advisory max versions.
+  // Also, ensure that strict max versions take precedence over
+  // advisory versions.
+
+  let { messages, result: updates } = yield promiseConsoleOutput(() => {
+    return checkUpdates({
+      id: "updatecheck-strict@tests.mozilla.org",
+      version: "0.1",
+      updates: [
+        { version: "0.2",
+          applications: { gecko: { strict_max_version: "*" } } },
+        { version: "0.3",
+          applications: { gecko: { strict_max_version: "43" } } },
+        { version: "0.4",
+          applications: { gecko: { advisory_max_version: "43" } } },
+        { version: "0.5",
+          applications: { gecko: { advisory_max_version: "43",
+                                   strict_max_version: "44" } } },
+      ]
+    });
+  });
+
+  equal(updates.length, 4, "all update items accepted");
+
+  equal(updates[0].targetApplications[0].maxVersion, "*");
+  equal(updates[0].strictCompatibility, false);
+
+  equal(updates[1].targetApplications[0].maxVersion, "43");
+  equal(updates[1].strictCompatibility, true);
+
+  equal(updates[2].targetApplications[0].maxVersion, "43");
+  equal(updates[2].strictCompatibility, false);
+
+  equal(updates[3].targetApplications[0].maxVersion, "44");
+  equal(updates[3].strictCompatibility, true);
+
+  messages = messages.filter(msg => /Ignoring 'advisory_max_version'.*'strict_max_version' also present/.test(msg.message));
+  equal(messages.length, 1, "mix of advisory_max_version and strict_max_version generated the expected warning");
+});
+
+
+add_task(function* test_update_url_security() {
+  // Checks that update links to privileged URLs are not accepted.
+
+  let { messages, result: updates } = yield promiseConsoleOutput(() => {
+    return checkUpdates({
+      id: "updatecheck-security@tests.mozilla.org",
+      version: "0.1",
+      updates: [
+        { version: "0.2",
+          update_link: "chrome://browser/content/browser.xul",
+          update_hash: "sha256:08ac852190ecd81f40a514ea9299fe9143d9ab5e296b97e73fb2a314de49648a" },
+        { version: "0.3",
+          update_link: "http://example.com/update.xpi",
+          update_hash: "sha256:18ac852190ecd81f40a514ea9299fe9143d9ab5e296b97e73fb2a314de49648a" },
+      ]
+    });
+  });
+
+  equal(updates.length, 2, "both updates were processed");
+  equal(updates[0].updateURL, null, "privileged update URL was removed");
+  equal(updates[1].updateURL, "http://example.com/update.xpi", "safe update URL was accepted");
+
+  messages = messages.filter(msg => /http:\/\/localhost.*\/updates\/.*may not load or link to chrome:/.test(msg.message));
+  equal(messages.length, 1, "privileged upate URL generated the expected console message");
+});
+
+
+add_task(function* test_no_update_key() {
+  // Checks that updates fail when an update key has been specified.
+
+  let { messages } = yield promiseConsoleOutput(function* () {
+    yield Assert.rejects(
+      checkUpdates({
+        id: "updatecheck-updatekey@tests.mozilla.org",
+        version: "0.1",
+        updateKey: "ayzzx=",
+        updates: [
+          { version: "0.2" },
+          { version: "0.3" },
+        ]
+      }),
+      null, "updated expected to fail");
+  });
+
+  messages = messages.filter(msg => /Update keys are not supported for JSON update manifests/.test(msg.message));
+  equal(messages.length, 1, "got expected update-key-unsupported error");
+});
+
+
+add_task(function* test_type_detection() {
+  // Checks that JSON update manifests are detected correctly
+  // regardless of extension or MIME type.
+
+  let tests = [
+    { contentType: "application/json",
+      extension: "json",
+      valid: true },
+    { contentType: "application/json",
+      extension: "php",
+      valid: true },
+    { contentType: "text/plain",
+      extension: "json",
+      valid: true },
+    { contentType: "application/octet-stream",
+      extension: "json",
+      valid: true },
+    { contentType: "text/plain",
+      extension: "json?foo=bar",
+      valid: true },
+    { contentType: "text/plain",
+      extension: "php",
+      valid: true },
+    { contentType: "text/plain",
+      extension: "rdf",
+      valid: true },
+    { contentType: "application/json",
+      extension: "rdf",
+      valid: true },
+    { contentType: "text/xml",
+      extension: "json",
+      valid: true },
+    { contentType: "application/rdf+xml",
+      extension: "json",
+      valid: true },
+  ];
+
+  for (let [i, test] of tests.entries()) {
+    let { messages } = yield promiseConsoleOutput(function *() {
+      let id = `updatecheck-typedetection-${i}@tests.mozilla.org`;
+      let updates;
+      try {
+        updates = yield checkUpdates({
+          id: id,
+          version: "0.1",
+          contentType: test.contentType,
+          manifestExtension: test.extension,
+          updates: [{ version: "0.2" }]
+        });
+      } catch (e) {
+        ok(!test.valid, "update manifest correctly detected as RDF");
+        return;
+      }
+
+      ok(test.valid, "update manifest correctly detected as JSON");
+      equal(updates.length, 1, "correct number of updates");
+      equal(updates[0].id, id, "update is for correct extension");
+    });
+
+    if (test.valid) {
+      // Make sure we don't get any XML parsing errors from the
+      // XMLHttpRequest machinery.
+      ok(!messages.some(msg => /not well-formed/.test(msg.message)),
+         "expect XMLHttpRequest not to attempt XML parsing");
+    }
+
+    messages = messages.filter(msg => /Update manifest was not valid XML/.test(msg.message));
+    equal(messages.length, !test.valid, "expected number of XML parsing errors");
+  }
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_langpack.js b/toolkit/mozapps/webextensions/test/xpcshell/test_langpack.js
new file mode 100644
index 000000000..a97a14d4d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_langpack.js
@@ -0,0 +1,339 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that language packs can be used without restarts.
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+// Enable loading extensions from the user scopes
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_USER);
+// Enable installing distribution add-ons
+Services.prefs.setBoolPref("extensions.installDistroAddons", true);
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+const userExtDir = gProfD.clone();
+userExtDir.append("extensions2");
+userExtDir.append(gAppInfo.ID);
+registerDirectory("XREUSysExt", userExtDir.parent);
+const distroDir = gProfD.clone();
+distroDir.append("distribution");
+distroDir.append("extensions");
+registerDirectory("XREAppDist", distroDir.parent);
+
+var chrome = Components.classes["@mozilla.org/chrome/chrome-registry;1"]
+  .getService(Components.interfaces.nsIXULChromeRegistry);
+
+function do_unregister_manifest() {
+  let path = getFileForAddon(profileDir, "langpack-x-testing@tests.mozilla.org");
+  Components.manager.removeBootstrappedManifestLocation(path);
+}
+
+function do_check_locale_not_registered(provider) {
+  let didThrow = false;
+  try {
+    chrome.getSelectedLocale(provider);
+  } catch (e) {
+    didThrow = true;
+  }
+  do_check_true(didThrow);
+}
+
+function run_test() {
+  do_test_pending();
+
+  startupManager();
+
+  run_test_1();
+}
+
+// Tests that installing doesn't require a restart
+function run_test_1() {
+  do_check_locale_not_registered("test-langpack");
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_langpack"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.type, "locale");
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Language Pack x-testing");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(install.addon.hasResource("install.rdf"));
+    do_check_false(install.addon.hasResource("bootstrap.js"));
+    do_check_eq(install.addon.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_INSTALL, 0);
+
+    let addon = install.addon;
+    prepare_test({
+      "langpack-x-testing@tests.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], function() {
+      do_check_true(addon.hasResource("install.rdf"));
+      // spin to let the startup complete
+      do_execute_soon(check_test_1);
+    });
+    install.install();
+  });
+}
+
+function check_test_1() {
+  AddonManager.getAllInstalls(function(installs) {
+    // There should be no active installs now since the install completed and
+    // doesn't require a restart.
+    do_check_eq(installs.length, 0);
+
+    AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", function(b1) {
+      do_check_neq(b1, null);
+      do_check_eq(b1.version, "1.0");
+      do_check_false(b1.appDisabled);
+      do_check_false(b1.userDisabled);
+      do_check_true(b1.isActive);
+      // check chrome reg that language pack is registered
+      do_check_eq(chrome.getSelectedLocale("test-langpack"), "x-testing");
+      do_check_true(b1.hasResource("install.rdf"));
+      do_check_false(b1.hasResource("bootstrap.js"));
+
+      let dir = do_get_addon_root_uri(profileDir, "langpack-x-testing@tests.mozilla.org");
+
+      AddonManager.getAddonsWithOperationsByTypes(null, function(list) {
+        do_check_eq(list.length, 0);
+
+        run_test_2();
+      });
+    });
+  });
+}
+
+// Tests that disabling doesn't require a restart
+function run_test_2() {
+  AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", function(b1) {
+    prepare_test({
+      "langpack-x-testing@tests.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ]
+    });
+
+    do_check_eq(b1.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_DISABLE, 0);
+    b1.userDisabled = true;
+    ensure_test_completed();
+
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_true(b1.userDisabled);
+    do_check_false(b1.isActive);
+    // check chrome reg that language pack is not registered
+    do_check_locale_not_registered("test-langpack");
+
+    AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", function(newb1) {
+      do_check_neq(newb1, null);
+      do_check_eq(newb1.version, "1.0");
+      do_check_false(newb1.appDisabled);
+      do_check_true(newb1.userDisabled);
+      do_check_false(newb1.isActive);
+
+      do_execute_soon(run_test_3);
+    });
+  });
+}
+
+// Test that restarting doesn't accidentally re-enable
+function run_test_3() {
+  shutdownManager();
+  startupManager(false);
+  // check chrome reg that language pack is not registered
+  do_check_locale_not_registered("test-langpack");
+
+  AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_true(b1.userDisabled);
+    do_check_false(b1.isActive);
+
+    run_test_4();
+  });
+}
+
+// Tests that enabling doesn't require a restart
+function run_test_4() {
+  AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", function(b1) {
+    prepare_test({
+      "langpack-x-testing@tests.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ]
+    });
+
+    do_check_eq(b1.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_ENABLE, 0);
+    b1.userDisabled = false;
+    ensure_test_completed();
+
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    // check chrome reg that language pack is registered
+    do_check_eq(chrome.getSelectedLocale("test-langpack"), "x-testing");
+
+    AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", function(newb1) {
+      do_check_neq(newb1, null);
+      do_check_eq(newb1.version, "1.0");
+      do_check_false(newb1.appDisabled);
+      do_check_false(newb1.userDisabled);
+      do_check_true(newb1.isActive);
+
+      do_execute_soon(run_test_5);
+    });
+  });
+}
+
+// Tests that a restart shuts down and restarts the add-on
+function run_test_5() {
+  shutdownManager();
+  do_unregister_manifest();
+  // check chrome reg that language pack is not registered
+  do_check_locale_not_registered("test-langpack");
+  startupManager(false);
+  // check chrome reg that language pack is registered
+  do_check_eq(chrome.getSelectedLocale("test-langpack"), "x-testing");
+
+  AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, b1.id));
+
+    run_test_7();
+  });
+}
+
+// Tests that uninstalling doesn't require a restart
+function run_test_7() {
+  AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", function(b1) {
+    prepare_test({
+      "langpack-x-testing@tests.mozilla.org": [
+        ["onUninstalling", false],
+        "onUninstalled"
+      ]
+    });
+
+    do_check_eq(b1.operationsRequiringRestart &
+                AddonManager.OP_NEEDS_RESTART_UNINSTALL, 0);
+    b1.uninstall();
+
+    check_test_7();
+  });
+}
+
+function check_test_7() {
+  ensure_test_completed();
+  // check chrome reg that language pack is not registered
+  do_check_locale_not_registered("test-langpack");
+
+  AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org",
+   callback_soon(function(b1) {
+    do_check_eq(b1, null);
+
+    restartManager();
+
+    AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", function(newb1) {
+      do_check_eq(newb1, null);
+
+      do_execute_soon(run_test_8);
+    });
+  }));
+}
+
+// Tests that a locale detected in the profile starts working immediately
+function run_test_8() {
+  shutdownManager();
+
+  manuallyInstall(do_get_addon("test_langpack"), profileDir, "langpack-x-testing@tests.mozilla.org");
+
+  startupManager(false);
+
+  AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org",
+   callback_soon(function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    // check chrome reg that language pack is registered
+    do_check_eq(chrome.getSelectedLocale("test-langpack"), "x-testing");
+    do_check_true(b1.hasResource("install.rdf"));
+    do_check_false(b1.hasResource("bootstrap.js"));
+
+    shutdownManager();
+    do_unregister_manifest();
+    // check chrome reg that language pack is not registered
+    do_check_locale_not_registered("test-langpack");
+    startupManager(false);
+    // check chrome reg that language pack is registered
+    do_check_eq(chrome.getSelectedLocale("test-langpack"), "x-testing");
+
+    AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", function(b2) {
+      prepare_test({
+        "langpack-x-testing@tests.mozilla.org": [
+          ["onUninstalling", false],
+          "onUninstalled"
+        ]
+      });
+
+      b2.uninstall();
+      ensure_test_completed();
+      do_execute_soon(run_test_9);
+    });
+  }));
+}
+
+// Tests that a locale from distribution/extensions gets installed and starts
+// working immediately
+function run_test_9() {
+  shutdownManager();
+  manuallyInstall(do_get_addon("test_langpack"), distroDir, "langpack-x-testing@tests.mozilla.org");
+  gAppInfo.version = "2.0";
+  startupManager(true);
+
+  AddonManager.getAddonByID("langpack-x-testing@tests.mozilla.org", callback_soon(function(b1) {
+    do_check_neq(b1, null);
+    do_check_eq(b1.version, "1.0");
+    do_check_false(b1.appDisabled);
+    do_check_false(b1.userDisabled);
+    do_check_true(b1.isActive);
+    // check chrome reg that language pack is registered
+    do_check_eq(chrome.getSelectedLocale("test-langpack"), "x-testing");
+    do_check_true(b1.hasResource("install.rdf"));
+    do_check_false(b1.hasResource("bootstrap.js"));
+
+    shutdownManager();
+    do_unregister_manifest();
+    // check chrome reg that language pack is not registered
+    do_check_locale_not_registered("test-langpack");
+    startupManager(false);
+    // check chrome reg that language pack is registered
+    do_check_eq(chrome.getSelectedLocale("test-langpack"), "x-testing");
+
+    do_test_finished();
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_locale.js b/toolkit/mozapps/webextensions/test/xpcshell/test_locale.js
new file mode 100644
index 000000000..b4c7311e5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_locale.js
@@ -0,0 +1,149 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that localized properties work as expected
+
+const PREF_MATCH_OS_LOCALE = "intl.locale.matchOS";
+const PREF_SELECTED_LOCALE = "general.useragent.locale";
+
+
+function run_test() {
+  do_test_pending();
+
+  // Setup for test
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  Services.prefs.setBoolPref(PREF_MATCH_OS_LOCALE, false);
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "fr-FR");
+
+  startupManager();
+
+  run_test_1();
+}
+
+// Tests that the localized properties are visible before installation
+function run_test_1() {
+  AddonManager.getInstallForFile(do_get_addon("test_locale"), function(install) {
+    do_check_eq(install.addon.name, "fr-FR Name");
+    do_check_eq(install.addon.description, "fr-FR Description");
+
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        "onInstalling"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], callback_soon(run_test_2));
+    install.install();
+  });
+}
+
+// Tests that the localized properties are visible after installation
+function run_test_2() {
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(addon) {
+    do_check_neq(addon, null);
+
+    do_check_eq(addon.name, "fr-FR Name");
+    do_check_eq(addon.description, "fr-FR Description");
+
+    addon.userDisabled = true;
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Test that the localized properties are still there when disabled.
+function run_test_3() {
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(addon) {
+    do_check_neq(addon, null);
+    do_check_eq(addon.name, "fr-FR Name");
+
+    do_execute_soon(run_test_4);
+  });
+}
+
+// Localised preference values should be ignored when the add-on is disabled
+function run_test_4() {
+  Services.prefs.setCharPref("extensions.addon1@tests.mozilla.org.name", "Name from prefs");
+  Services.prefs.setCharPref("extensions.addon1@tests.mozilla.org.contributor.1", "Contributor 1");
+  Services.prefs.setCharPref("extensions.addon1@tests.mozilla.org.contributor.2", "Contributor 2");
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(addon) {
+    do_check_neq(addon, null);
+    do_check_eq(addon.name, "fr-FR Name");
+    let contributors = addon.contributors;
+    do_check_eq(contributors.length, 3);
+    do_check_eq(contributors[0], "Fr Contributor 1");
+    do_check_eq(contributors[1], "Fr Contributor 2");
+    do_check_eq(contributors[2], "Fr Contributor 3");
+
+    do_execute_soon(run_test_5);
+  });
+}
+
+// Test that changing locale works
+function run_test_5() {
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "de-DE");
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(addon) {
+    do_check_neq(addon, null);
+
+    do_check_eq(addon.name, "de-DE Name");
+    do_check_eq(addon.description, null);
+
+    do_execute_soon(run_test_6);
+  });
+}
+
+// Test that missing locales use the fallbacks
+function run_test_6() {
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "nl-NL");
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(addon) {
+    do_check_neq(addon, null);
+
+    do_check_eq(addon.name, "Fallback Name");
+    do_check_eq(addon.description, "Fallback Description");
+
+    addon.userDisabled = false;
+    do_execute_soon(run_test_7);
+  }));
+}
+
+// Test that the prefs will override the fallbacks
+function run_test_7() {
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(addon) {
+    do_check_neq(addon, null);
+
+    do_check_eq(addon.name, "Name from prefs");
+
+    do_execute_soon(run_test_8);
+  });
+}
+
+// Test that the prefs will override localized values from the manifest
+function run_test_8() {
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "fr-FR");
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(addon) {
+    do_check_neq(addon, null);
+
+    do_check_eq(addon.name, "Name from prefs");
+    let contributors = addon.contributors;
+    do_check_eq(contributors.length, 2);
+    do_check_eq(contributors[0], "Contributor 1");
+    do_check_eq(contributors[1], "Contributor 2");
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_locked.js b/toolkit/mozapps/webextensions/test/xpcshell/test_locked.js
new file mode 100644
index 000000000..86457eab1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_locked.js
@@ -0,0 +1,544 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we rebuild something sensible from a corrupt database
+
+Components.utils.import("resource://testing-common/httpd.js");
+Components.utils.import("resource://gre/modules/osfile.jsm");
+
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+mapFile("/data/test_corrupt.rdf", testserver);
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+
+// Will be enabled
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will be disabled
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will get a compatibility update and stay enabled
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 3",
+  updateURL: "http://localhost:" + gPort + "/data/test_corrupt.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Will get a compatibility update and be enabled
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 4",
+  updateURL: "http://localhost:" + gPort + "/data/test_corrupt.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Would stay incompatible with strict compat
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Enabled bootstrapped
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 6",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Disabled bootstrapped
+var addon7 = {
+  id: "addon7@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 7",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// The default theme
+var theme1 = {
+  id: "theme1@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 1",
+  internalName: "classic/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// The selected theme
+var theme2 = {
+  id: "theme2@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 2",
+  internalName: "test/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+add_task(function* init() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(addon7, profileDir);
+  writeInstallRDFForExtension(theme1, profileDir);
+  writeInstallRDFForExtension(theme2, profileDir);
+
+  // Startup the profile and setup the initial state
+  startupManager();
+
+  // New profile so new add-ons are ignored
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+
+  let [a2, a3, a4, a7, t2] =
+    yield promiseAddonsByIDs(["addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"]);
+  let deferredUpdateFinished = Promise.defer();
+  // Set up the initial state
+  a2.userDisabled = true;
+  a4.userDisabled = true;
+  a7.userDisabled = true;
+  t2.userDisabled = false;
+  a3.findUpdates({
+    onUpdateFinished: function() {
+      a4.findUpdates({
+        onUpdateFinished: function() {
+          // Let the updates finish before restarting the manager
+          deferredUpdateFinished.resolve();
+        }
+      }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+    }
+  }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+
+  yield deferredUpdateFinished.promise;
+});
+
+
+add_task(function* run_test_1() {
+  restartManager();
+  let [a1, a2, a3, a4, a5, a6, a7, t1, t2] =
+    yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                              "addon2@tests.mozilla.org",
+                              "addon3@tests.mozilla.org",
+                              "addon4@tests.mozilla.org",
+                              "addon5@tests.mozilla.org",
+                              "addon6@tests.mozilla.org",
+                              "addon7@tests.mozilla.org",
+                              "theme1@tests.mozilla.org",
+                              "theme2@tests.mozilla.org"]);
+
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.appDisabled);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_false(a2.isActive);
+  do_check_true(a2.userDisabled);
+  do_check_false(a2.appDisabled);
+  do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_true(a3.isActive);
+  do_check_false(a3.userDisabled);
+  do_check_false(a3.appDisabled);
+  do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+  do_check_neq(a4, null);
+  do_check_false(a4.isActive);
+  do_check_true(a4.userDisabled);
+  do_check_false(a4.appDisabled);
+  do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+  do_check_neq(a5, null);
+  do_check_true(a5.isActive);
+  do_check_false(a5.userDisabled);
+  do_check_false(a5.appDisabled);
+  do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_true(a6.isActive);
+  do_check_false(a6.userDisabled);
+  do_check_false(a6.appDisabled);
+  do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(a7, null);
+  do_check_false(a7.isActive);
+  do_check_true(a7.userDisabled);
+  do_check_false(a7.appDisabled);
+  do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_false(t1.appDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isThemeInAddonsList(profileDir, t1.id));
+
+  do_check_neq(t2, null);
+  do_check_true(t2.isActive);
+  do_check_false(t2.userDisabled);
+  do_check_false(t2.appDisabled);
+  do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isThemeInAddonsList(profileDir, t2.id));
+
+  // Open another handle on the JSON DB with as much Unix and Windows locking
+  // as we can to simulate some other process interfering with it
+  shutdownManager();
+  do_print("Locking " + gExtensionsJSON.path);
+  let options = {
+    winShare: 0
+  };
+  if (OS.Constants.libc.O_EXLOCK)
+    options.unixFlags = OS.Constants.libc.O_EXLOCK;
+
+  let file = yield OS.File.open(gExtensionsJSON.path, {read:true, write:true, existing:true}, options);
+
+  let filePermissions = gExtensionsJSON.permissions;
+  if (!OS.Constants.Win) {
+    gExtensionsJSON.permissions = 0;
+  }
+  startupManager(false);
+
+  // Shouldn't have seen any startup changes
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+
+  // Accessing the add-ons should open and recover the database
+  [a1, a2, a3, a4, a5, a6, a7, t1, t2] =
+    yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                              "addon2@tests.mozilla.org",
+                              "addon3@tests.mozilla.org",
+                              "addon4@tests.mozilla.org",
+                              "addon5@tests.mozilla.org",
+                              "addon6@tests.mozilla.org",
+                              "addon7@tests.mozilla.org",
+                              "theme1@tests.mozilla.org",
+                              "theme2@tests.mozilla.org"]);
+
+   // Should be correctly recovered
+   do_check_neq(a1, null);
+   do_check_true(a1.isActive);
+   do_check_false(a1.userDisabled);
+   do_check_false(a1.appDisabled);
+   do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+   // Should be correctly recovered
+   do_check_neq(a2, null);
+   do_check_false(a2.isActive);
+   do_check_true(a2.userDisabled);
+   do_check_false(a2.appDisabled);
+   do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+   // The compatibility update won't be recovered but it should still be
+   // active for this session
+   do_check_neq(a3, null);
+   do_check_true(a3.isActive);
+   do_check_false(a3.userDisabled);
+   do_check_false(a3.appDisabled);
+   do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+   // The compatibility update won't be recovered and with strict
+   // compatibility it would not have been able to tell that it was
+   // previously userDisabled. However, without strict compat, it wasn't
+   // appDisabled, so it knows it must have been userDisabled.
+   do_check_neq(a4, null);
+   do_check_false(a4.isActive);
+   do_check_true(a4.userDisabled);
+   do_check_false(a4.appDisabled);
+   do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+   do_check_neq(a5, null);
+   do_check_true(a5.isActive);
+   do_check_false(a5.userDisabled);
+   do_check_false(a5.appDisabled);
+   do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+   do_check_neq(a6, null);
+   do_check_true(a6.isActive);
+   do_check_false(a6.userDisabled);
+   do_check_false(a6.appDisabled);
+   do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+   do_check_neq(a7, null);
+   do_check_false(a7.isActive);
+   do_check_true(a7.userDisabled);
+   do_check_false(a7.appDisabled);
+   do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+   // Should be correctly recovered
+   do_check_neq(t1, null);
+   do_check_false(t1.isActive);
+   do_check_true(t1.userDisabled);
+   do_check_false(t1.appDisabled);
+   do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_false(isThemeInAddonsList(profileDir, t1.id));
+
+   // Should be correctly recovered
+   do_check_neq(t2, null);
+   do_check_true(t2.isActive);
+   do_check_false(t2.userDisabled);
+   do_check_false(t2.appDisabled);
+   do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isThemeInAddonsList(profileDir, t2.id));
+
+   // Restarting will actually apply changes to extensions.ini which will
+   // then be put into the in-memory database when we next fail to load the
+   // real thing
+   try {
+     shutdownManager();
+   } catch (e) {
+     // We're expecting an error here.
+   }
+   startupManager(false);
+
+   // Shouldn't have seen any startup changes
+   check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+
+   [a1, a2, a3, a4, a5, a6, a7, t1, t2] =
+     yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"]);
+
+   do_check_neq(a1, null);
+   do_check_true(a1.isActive);
+   do_check_false(a1.userDisabled);
+   do_check_false(a1.appDisabled);
+   do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+   do_check_neq(a2, null);
+   do_check_false(a2.isActive);
+   do_check_true(a2.userDisabled);
+   do_check_false(a2.appDisabled);
+   do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+   do_check_neq(a3, null);
+   do_check_true(a3.isActive);
+   do_check_false(a3.userDisabled);
+   do_check_false(a3.appDisabled);
+   do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+   do_check_neq(a4, null);
+   do_check_false(a4.isActive);
+   do_check_true(a4.userDisabled);
+   do_check_false(a4.appDisabled);
+   do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+   do_check_neq(a5, null);
+   do_check_true(a5.isActive);
+   do_check_false(a5.userDisabled);
+   do_check_false(a5.appDisabled);
+   do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+   do_check_neq(a6, null);
+   do_check_true(a6.isActive);
+   do_check_false(a6.userDisabled);
+   do_check_false(a6.appDisabled);
+   do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+   do_check_neq(a7, null);
+   do_check_false(a7.isActive);
+   do_check_true(a7.userDisabled);
+   do_check_false(a7.appDisabled);
+   do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+   do_check_neq(t1, null);
+   do_check_false(t1.isActive);
+   do_check_true(t1.userDisabled);
+   do_check_false(t1.appDisabled);
+   do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_false(isThemeInAddonsList(profileDir, t1.id));
+
+   do_check_neq(t2, null);
+   do_check_true(t2.isActive);
+   do_check_false(t2.userDisabled);
+   do_check_false(t2.appDisabled);
+   do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isThemeInAddonsList(profileDir, t2.id));
+
+   // After allowing access to the original DB things should go back to as
+   // they were previously
+   try {
+     shutdownManager();
+   } catch (e) {
+     // We're expecting an error here.
+   }
+   do_print("Unlocking " + gExtensionsJSON.path);
+   yield file.close();
+   gExtensionsJSON.permissions = filePermissions;
+   startupManager();
+
+
+   // Shouldn't have seen any startup changes
+   check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+
+   [a1, a2, a3, a4, a5, a6, a7, t1, t2] =
+     yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"]);
+
+   do_check_neq(a1, null);
+   do_check_true(a1.isActive);
+   do_check_false(a1.userDisabled);
+   do_check_false(a1.appDisabled);
+   do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+   do_check_neq(a2, null);
+   do_check_false(a2.isActive);
+   do_check_true(a2.userDisabled);
+   do_check_false(a2.appDisabled);
+   do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+   do_check_neq(a3, null);
+   do_check_true(a3.isActive);
+   do_check_false(a3.userDisabled);
+   do_check_false(a3.appDisabled);
+   do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+   do_check_neq(a4, null);
+   do_check_false(a4.isActive);
+   do_check_true(a4.userDisabled);
+   do_check_false(a4.appDisabled);
+   do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+   do_check_neq(a5, null);
+   do_check_true(a5.isActive);
+   do_check_false(a5.userDisabled);
+   do_check_false(a5.appDisabled);
+   do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+   do_check_neq(a6, null);
+   do_check_true(a6.isActive);
+   do_check_false(a6.userDisabled);
+   do_check_false(a6.appDisabled);
+   do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+   do_check_neq(a7, null);
+   do_check_false(a7.isActive);
+   do_check_true(a7.userDisabled);
+   do_check_false(a7.appDisabled);
+   do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+   do_check_neq(t1, null);
+   do_check_false(t1.isActive);
+   do_check_true(t1.userDisabled);
+   do_check_false(t1.appDisabled);
+   do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_false(isThemeInAddonsList(profileDir, t1.id));
+
+   do_check_neq(t2, null);
+   do_check_true(t2.isActive);
+   do_check_false(t2.userDisabled);
+   do_check_false(t2.appDisabled);
+   do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+   do_check_true(isThemeInAddonsList(profileDir, t2.id));
+
+   try {
+     shutdownManager();
+   } catch (e) {
+     // We're expecting an error here.
+   }
+});
+
+
+function run_test() {
+ run_next_test();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_locked2.js b/toolkit/mozapps/webextensions/test/xpcshell/test_locked2.js
new file mode 100644
index 000000000..4a62c585f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_locked2.js
@@ -0,0 +1,297 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we handle a locked database when there are extension changes
+// in progress
+
+Components.utils.import("resource://gre/modules/osfile.jsm");
+
+// Will be left alone
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will be enabled
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will be disabled
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will be uninstalled
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 4",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+
+// Will be updated
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+add_task(function*() {
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+
+  // Make it look like add-on 5 was installed some time in the past so the update is
+  // detected
+  let path = getFileForAddon(profileDir, addon5.id).path;
+  yield promiseSetExtensionModifiedTime(path, Date.now() - (60000));
+
+  // Startup the profile and setup the initial state
+  startupManager();
+
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+
+  let a1, a2, a3, a4, a5, a6;
+
+  [a2] = yield promiseAddonsByIDs(["addon2@tests.mozilla.org"]);
+  a2.userDisabled = true;
+
+  restartManager();
+
+  [a1, a2, a3, a4, a5] =
+    yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                              "addon2@tests.mozilla.org",
+                              "addon3@tests.mozilla.org",
+                              "addon4@tests.mozilla.org",
+                              "addon5@tests.mozilla.org"]);
+
+  a2.userDisabled = false;
+  a3.userDisabled = true;
+  a4.uninstall();
+
+  yield promiseInstallAllFiles([do_get_addon("test_locked2_5"),
+                                do_get_addon("test_locked2_6")]);
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.appDisabled);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_false(a2.isActive);
+  do_check_false(a2.userDisabled);
+  do_check_false(a2.appDisabled);
+  do_check_eq(a2.pendingOperations, AddonManager.PENDING_ENABLE);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_true(a3.isActive);
+  do_check_true(a3.userDisabled);
+  do_check_false(a3.appDisabled);
+  do_check_eq(a3.pendingOperations, AddonManager.PENDING_DISABLE);
+  do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+  do_check_neq(a4, null);
+  do_check_true(a4.isActive);
+  do_check_false(a4.userDisabled);
+  do_check_false(a4.appDisabled);
+  do_check_eq(a4.pendingOperations, AddonManager.PENDING_UNINSTALL);
+  do_check_true(isExtensionInAddonsList(profileDir, a4.id));
+
+  do_check_neq(a5, null);
+  do_check_eq(a5.version, "1.0");
+  do_check_true(a5.isActive);
+  do_check_false(a5.userDisabled);
+  do_check_false(a5.appDisabled);
+  do_check_eq(a5.pendingOperations, AddonManager.PENDING_UPGRADE);
+  do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+  // Open another handle on the JSON DB with as much Unix and Windows locking
+  // as we can to simulate some other process interfering with it
+  shutdownManager();
+  do_print("Locking " + gExtensionsJSON.path);
+  let options = {
+    winShare: 0
+  };
+  if (OS.Constants.libc.O_EXLOCK)
+    options.unixFlags = OS.Constants.libc.O_EXLOCK;
+
+  let file = yield OS.File.open(gExtensionsJSON.path, {read:true, write:true, existing:true}, options);
+
+  let filePermissions = gExtensionsJSON.permissions;
+  if (!OS.Constants.Win) {
+    gExtensionsJSON.permissions = 0;
+  }
+  startupManager(false);
+
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+
+  [a1, a2, a3, a4, a5, a6] =
+    yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                              "addon2@tests.mozilla.org",
+                              "addon3@tests.mozilla.org",
+                              "addon4@tests.mozilla.org",
+                              "addon5@tests.mozilla.org",
+                              "addon6@tests.mozilla.org"]);
+
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.appDisabled);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_true(a2.isActive);
+  do_check_false(a2.userDisabled);
+  do_check_false(a2.appDisabled);
+  do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_false(a3.isActive);
+  do_check_true(a3.userDisabled);
+  do_check_false(a3.appDisabled);
+  do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+
+  do_check_eq(a4, null);
+
+  do_check_neq(a5, null);
+  do_check_eq(a5.version, "2.0");
+  do_check_true(a5.isActive);
+  do_check_false(a5.userDisabled);
+  do_check_false(a5.appDisabled);
+  do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_true(a6.isActive);
+  do_check_false(a6.userDisabled);
+  do_check_false(a6.appDisabled);
+  do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a6.id));
+
+  // After allowing access to the original DB things should still be
+  // back how they were before the lock
+  let shutdownError;
+  try {
+    shutdownManager();
+  } catch (e) {
+    shutdownError = e;
+  }
+  yield file.close();
+  gExtensionsJSON.permissions = filePermissions;
+  startupManager();
+
+  // On Unix, we can save the DB even when the original file wasn't
+  // readable, so our changes were saved. On Windows,
+  // these things happened when we had no access to the database so
+  // they are seen as external changes when we get the database back
+  if (shutdownError) {
+    do_print("Previous XPI save failed");
+    check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED,
+        ["addon6@tests.mozilla.org"]);
+    check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED,
+        ["addon4@tests.mozilla.org"]);
+  }
+  else {
+    do_print("Previous XPI save succeeded");
+    check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+    check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+  }
+
+  [a1, a2, a3, a4, a5, a6] =
+    yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                              "addon2@tests.mozilla.org",
+                              "addon3@tests.mozilla.org",
+                              "addon4@tests.mozilla.org",
+                              "addon5@tests.mozilla.org",
+                              "addon6@tests.mozilla.org"]);
+
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.appDisabled);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_true(a2.isActive);
+  do_check_false(a2.userDisabled);
+  do_check_false(a2.appDisabled);
+  do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_false(a3.isActive);
+  do_check_true(a3.userDisabled);
+  do_check_false(a3.appDisabled);
+  do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+
+  do_check_eq(a4, null);
+
+  do_check_neq(a5, null);
+  do_check_eq(a5.version, "2.0");
+  do_check_true(a5.isActive);
+  do_check_false(a5.userDisabled);
+  do_check_false(a5.appDisabled);
+  do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_true(a6.isActive);
+  do_check_false(a6.userDisabled);
+  do_check_false(a6.appDisabled);
+  do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a6.id));
+});
+
+function run_test() {
+  run_next_test();
+}
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_locked_strictcompat.js b/toolkit/mozapps/webextensions/test/xpcshell/test_locked_strictcompat.js
new file mode 100644
index 000000000..9e17b4c8b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_locked_strictcompat.js
@@ -0,0 +1,567 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we rebuild something sensible from a corrupt database
+
+Components.utils.import("resource://testing-common/httpd.js");
+Components.utils.import("resource://gre/modules/osfile.jsm");
+
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+mapFile("/data/test_corrupt.rdf", testserver);
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, true);
+
+// Will be enabled
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will be disabled
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Will get a compatibility update and be enabled
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 3",
+  updateURL: "http://localhost:" + gPort + "/data/test_corrupt.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Will get a compatibility update and be disabled
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 4",
+  updateURL: "http://localhost:" + gPort + "/data/test_corrupt.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Stays incompatible
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Enabled bootstrapped
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 6",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// Disabled bootstrapped
+var addon7 = {
+  id: "addon7@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 7",
+  bootstrap: "true",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// The default theme
+var theme1 = {
+  id: "theme1@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 1",
+  internalName: "classic/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+// The selected theme
+var theme2 = {
+  id: "theme2@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 2",
+  internalName: "test/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+add_task(function* init() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(addon7, profileDir);
+  writeInstallRDFForExtension(theme1, profileDir);
+  writeInstallRDFForExtension(theme2, profileDir);
+
+  // Startup the profile and setup the initial state
+  startupManager();
+
+  // New profile so new add-ons are ignored
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+
+  let a1, a2, a3, a4, a5, a6, a7, t1, t2;
+
+  [a2, a3, a4, a7, t2] =
+    yield promiseAddonsByIDs(["addon2@tests.mozilla.org",
+                              "addon3@tests.mozilla.org",
+                              "addon4@tests.mozilla.org",
+                              "addon7@tests.mozilla.org",
+                              "theme2@tests.mozilla.org"]);
+
+  // Set up the initial state
+  let deferredUpdateFinished = Promise.defer();
+
+  a2.userDisabled = true;
+  a4.userDisabled = true;
+  a7.userDisabled = true;
+  t2.userDisabled = false;
+  a3.findUpdates({
+    onUpdateFinished: function() {
+      a4.findUpdates({
+        onUpdateFinished: function() {
+          deferredUpdateFinished.resolve();
+        }
+      }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+    }
+  }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+  yield deferredUpdateFinished.promise;
+});
+
+add_task(function* run_test_1() {
+  let a1, a2, a3, a4, a5, a6, a7, t1, t2;
+
+  restartManager();
+  [a1, a2, a3, a4, a5, a6, a7, t1, t2] =
+    yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                             "addon2@tests.mozilla.org",
+                             "addon3@tests.mozilla.org",
+                             "addon4@tests.mozilla.org",
+                             "addon5@tests.mozilla.org",
+                             "addon6@tests.mozilla.org",
+                             "addon7@tests.mozilla.org",
+                             "theme1@tests.mozilla.org",
+                             "theme2@tests.mozilla.org"]);
+
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.appDisabled);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_false(a2.isActive);
+  do_check_true(a2.userDisabled);
+  do_check_false(a2.appDisabled);
+  do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_true(a3.isActive);
+  do_check_false(a3.userDisabled);
+  do_check_false(a3.appDisabled);
+  do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+  do_check_neq(a4, null);
+  do_check_false(a4.isActive);
+  do_check_true(a4.userDisabled);
+  do_check_false(a4.appDisabled);
+  do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+  do_check_neq(a5, null);
+  do_check_false(a5.isActive);
+  do_check_false(a5.userDisabled);
+  do_check_true(a5.appDisabled);
+  do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_true(a6.isActive);
+  do_check_false(a6.userDisabled);
+  do_check_false(a6.appDisabled);
+  do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(a7, null);
+  do_check_false(a7.isActive);
+  do_check_true(a7.userDisabled);
+  do_check_false(a7.appDisabled);
+  do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_false(t1.appDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isThemeInAddonsList(profileDir, t1.id));
+
+  do_check_neq(t2, null);
+  do_check_true(t2.isActive);
+  do_check_false(t2.userDisabled);
+  do_check_false(t2.appDisabled);
+  do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isThemeInAddonsList(profileDir, t2.id));
+
+  // Open another handle on the JSON DB with as much Unix and Windows locking
+  // as we can to simulate some other process interfering with it
+  shutdownManager();
+  do_print("Locking " + gExtensionsJSON.path);
+  let options = {
+    winShare: 0
+  };
+  if (OS.Constants.libc.O_EXLOCK)
+    options.unixFlags = OS.Constants.libc.O_EXLOCK;
+
+  let file = yield OS.File.open(gExtensionsJSON.path, {read:true, write:true, existing:true}, options);
+
+  let filePermissions = gExtensionsJSON.permissions;
+  if (!OS.Constants.Win) {
+    gExtensionsJSON.permissions = 0;
+  }
+  startupManager(false);
+
+  // Shouldn't have seen any startup changes
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+
+  // Accessing the add-ons should open and recover the database
+  [a1, a2, a3, a4, a5, a6, a7, t1, t2] =
+    yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                              "addon2@tests.mozilla.org",
+                              "addon3@tests.mozilla.org",
+                              "addon4@tests.mozilla.org",
+                              "addon5@tests.mozilla.org",
+                              "addon6@tests.mozilla.org",
+                              "addon7@tests.mozilla.org",
+                              "theme1@tests.mozilla.org",
+                              "theme2@tests.mozilla.org"]);
+
+  // Should be correctly recovered
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.appDisabled);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+  // Should be correctly recovered
+  do_check_neq(a2, null);
+  do_check_false(a2.isActive);
+  do_check_true(a2.userDisabled);
+  do_check_false(a2.appDisabled);
+  do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  // The compatibility update won't be recovered but it should still be
+  // active for this session
+  do_check_neq(a3, null);
+  do_check_true(a3.isActive);
+  do_check_false(a3.userDisabled);
+  do_check_true(a3.appDisabled);
+  do_check_eq(a3.pendingOperations, AddonManager.PENDING_DISABLE);
+  do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+  // The compatibility update won't be recovered and it will not have been
+  // able to tell that it was previously userDisabled
+  do_check_neq(a4, null);
+  do_check_false(a4.isActive);
+  do_check_false(a4.userDisabled);
+  do_check_true(a4.appDisabled);
+  do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+  do_check_neq(a5, null);
+  do_check_false(a5.isActive);
+  do_check_false(a5.userDisabled);
+  do_check_true(a5.appDisabled);
+  do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_true(a6.isActive);
+  do_check_false(a6.userDisabled);
+  do_check_false(a6.appDisabled);
+  do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(a7, null);
+  do_check_false(a7.isActive);
+  do_check_true(a7.userDisabled);
+  do_check_false(a7.appDisabled);
+  do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+  // Should be correctly recovered
+  do_check_neq(t1, null);
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_false(t1.appDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isThemeInAddonsList(profileDir, t1.id));
+
+  // Should be correctly recovered
+  do_check_neq(t2, null);
+  do_check_true(t2.isActive);
+  do_check_false(t2.userDisabled);
+  do_check_false(t2.appDisabled);
+  do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isThemeInAddonsList(profileDir, t2.id));
+
+  // Restarting will actually apply changes to extensions.ini which will
+  // then be put into the in-memory database when we next fail to load the
+  // real thing
+  try {
+    shutdownManager();
+  } catch (e) {
+    // We're expecting an error here.
+  }
+  startupManager(false);
+
+  // Shouldn't have seen any startup changes
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+
+  [a1, a2, a3, a4, a5, a6, a7, t1, t2] =
+    yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"]);
+
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.appDisabled);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_false(a2.isActive);
+  do_check_true(a2.userDisabled);
+  do_check_false(a2.appDisabled);
+  do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_false(a3.isActive);
+  do_check_false(a3.userDisabled);
+  do_check_true(a3.appDisabled);
+  do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+
+  do_check_neq(a4, null);
+  do_check_false(a4.isActive);
+  do_check_false(a4.userDisabled);
+  do_check_true(a4.appDisabled);
+  do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+
+  do_check_neq(a5, null);
+  do_check_false(a5.isActive);
+  do_check_false(a5.userDisabled);
+  do_check_true(a5.appDisabled);
+  do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_true(a6.isActive);
+  do_check_false(a6.userDisabled);
+  do_check_false(a6.appDisabled);
+  do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(a7, null);
+  do_check_false(a7.isActive);
+  do_check_true(a7.userDisabled);
+  do_check_false(a7.appDisabled);
+  do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_false(t1.appDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isThemeInAddonsList(profileDir, t1.id));
+
+  do_check_neq(t2, null);
+  do_check_true(t2.isActive);
+  do_check_false(t2.userDisabled);
+  do_check_false(t2.appDisabled);
+  do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isThemeInAddonsList(profileDir, t2.id));
+
+  // After allowing access to the original DB things should go back to as
+  // back how they were before the lock
+  let shutdownError;
+  try {
+    shutdownManager();
+  } catch (e) {
+    shutdownError = e;
+  }
+  do_print("Unlocking " + gExtensionsJSON.path);
+  yield file.close();
+  gExtensionsJSON.permissions = filePermissions;
+  startupManager(false);
+
+  // Shouldn't have seen any startup changes
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+
+  [a1, a2, a3, a4, a5, a6, a7, t1, t2] =
+    yield promiseAddonsByIDs(["addon1@tests.mozilla.org",
+                              "addon2@tests.mozilla.org",
+                              "addon3@tests.mozilla.org",
+                              "addon4@tests.mozilla.org",
+                              "addon5@tests.mozilla.org",
+                              "addon6@tests.mozilla.org",
+                              "addon7@tests.mozilla.org",
+                              "theme1@tests.mozilla.org",
+                              "theme2@tests.mozilla.org"]);
+
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_false(a1.appDisabled);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+  do_check_neq(a2, null);
+  do_check_false(a2.isActive);
+  do_check_true(a2.userDisabled);
+  do_check_false(a2.appDisabled);
+  do_check_eq(a2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+
+  do_check_neq(a3, null);
+  do_check_false(a3.userDisabled);
+  // On Unix, we may be able to save our changes over the locked DB so we
+  // remember that this extension was changed to disabled. On Windows we
+  // couldn't replace the old DB so we read the older version of the DB
+  // where the extension is enabled
+  if (shutdownError) {
+    do_print("XPI save failed");
+    do_check_true(a3.isActive);
+    do_check_false(a3.appDisabled);
+    do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+  }
+  else {
+    do_print("XPI save succeeded");
+    do_check_false(a3.isActive);
+    do_check_true(a3.appDisabled);
+    do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+  }
+  do_check_eq(a3.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(a4, null);
+  do_check_false(a4.isActive);
+  // The reverse of the platform difference for a3 - Unix should
+  // stay the same as the last iteration because the save succeeded,
+  // Windows should still say userDisabled
+  if (OS.Constants.Win) {
+    do_check_true(a4.userDisabled);
+    do_check_false(a4.appDisabled);
+  }
+  else {
+    do_check_false(a4.userDisabled);
+    do_check_true(a4.appDisabled);
+  }
+  do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+  do_check_eq(a4.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(a5, null);
+  do_check_false(a5.isActive);
+  do_check_false(a5.userDisabled);
+  do_check_true(a5.appDisabled);
+  do_check_eq(a5.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isExtensionInAddonsList(profileDir, a5.id));
+
+  do_check_neq(a6, null);
+  do_check_true(a6.isActive);
+  do_check_false(a6.userDisabled);
+  do_check_false(a6.appDisabled);
+  do_check_eq(a6.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(a7, null);
+  do_check_false(a7.isActive);
+  do_check_true(a7.userDisabled);
+  do_check_false(a7.appDisabled);
+  do_check_eq(a7.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_false(t1.appDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(isThemeInAddonsList(profileDir, t1.id));
+
+  do_check_neq(t2, null);
+  do_check_true(t2.isActive);
+  do_check_false(t2.userDisabled);
+  do_check_false(t2.appDisabled);
+  do_check_eq(t2.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(isThemeInAddonsList(profileDir, t2.id));
+
+  try {
+    shutdownManager();
+  } catch (e) {
+    // An error is expected here.
+  }
+});
+
+function run_test() {
+  run_next_test();
+}
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_manifest.js b/toolkit/mozapps/webextensions/test/xpcshell/test_manifest.js
new file mode 100644
index 000000000..85279ba5d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_manifest.js
@@ -0,0 +1,562 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This tests that all properties are read from the install manifests and that
+// items are correctly enabled/disabled based on them (blocklist tests are
+// elsewhere)
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  const profileDir = gProfD.clone();
+  profileDir.append("extensions");
+
+  writeInstallRDFForExtension({
+    id: "addon1@tests.mozilla.org",
+    version: "1.0",
+    optionsURL: "chrome://test/content/options.xul",
+    aboutURL: "chrome://test/content/about.xul",
+    iconURL: "chrome://test/skin/icon.png",
+    icon64URL: "chrome://test/skin/icon64.png",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 1",
+    description: "Test Description",
+    creator: "Test Creator",
+    homepageURL: "http://www.example.com",
+    developer: [
+      "Test Developer 1",
+      "Test Developer 2"
+    ],
+    translator: [
+      "Test Translator 1",
+      "Test Translator 2"
+    ],
+    contributor: [
+      "Test Contributor 1",
+      "Test Contributor 2"
+    ]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon2@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "https://www.foo.com",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 2"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon3@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "http://www.foo.com",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 3"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon4@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "http://www.foo.com",
+    updateKey: "foo",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 4"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon5@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "*"
+    }],
+    name: "Test Addon 5"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon6@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "0",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 6"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon7@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "0",
+      maxVersion: "0"
+    }],
+    name: "Test Addon 7"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon8@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1.1",
+      maxVersion: "*"
+    }],
+    name: "Test Addon 8"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon9@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "toolkit@mozilla.org",
+      minVersion: "1.9.2",
+      maxVersion: "1.9.*"
+    }],
+    name: "Test Addon 9"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon10@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "toolkit@mozilla.org",
+      minVersion: "1.9.2.1",
+      maxVersion: "1.9.*"
+    }],
+    name: "Test Addon 10"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon11@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "toolkit@mozilla.org",
+      minVersion: "1.9",
+      maxVersion: "1.9.2"
+    }],
+    name: "Test Addon 11"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon12@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "toolkit@mozilla.org",
+      minVersion: "1.9",
+      maxVersion: "1.9.1.*"
+    }],
+    name: "Test Addon 12"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon13@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "toolkit@mozilla.org",
+      minVersion: "1.9",
+      maxVersion: "1.9.*"
+    }, {
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "0",
+      maxVersion: "0.5"
+    }],
+    name: "Test Addon 13"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon14@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "toolkit@mozilla.org",
+      minVersion: "1.9",
+      maxVersion: "1.9.1"
+    }, {
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 14"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon15@tests.mozilla.org",
+    version: "1.0",
+    updateKey: "foo",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 15"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon16@tests.mozilla.org",
+    version: "1.0",
+    updateKey: "foo",
+    updateURL: "https://www.foo.com",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 16"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon17@tests.mozilla.org",
+    version: "1.0",
+    optionsURL: "chrome://test/content/options.xul",
+    optionsType: "2",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 17"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon18@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 18"
+  }, profileDir, undefined, "options.xul");
+
+  writeInstallRDFForExtension({
+    id: "addon19@tests.mozilla.org",
+    version: "1.0",
+    optionsType: "99",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 19"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon20@tests.mozilla.org",
+    version: "1.0",
+    optionsType: "1",
+    optionsURL: "chrome://test/content/options.xul",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 20"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon21@tests.mozilla.org",
+    version: "1.0",
+    optionsType: "3",
+    optionsURL: "chrome://test/content/options.xul",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 21"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon22@tests.mozilla.org",
+    version: "1.0",
+    optionsType: "2",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 22"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon23@tests.mozilla.org",
+    version: "1.0",
+    optionsType: "2",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 23"
+  }, profileDir, undefined, "options.xul");
+
+  writeInstallRDFForExtension({
+    id: "addon24@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 24"
+  }, profileDir, undefined, "options.xul");
+
+  writeInstallRDFForExtension({
+    id: "addon25@tests.mozilla.org",
+    version: "1.0",
+    optionsType: "3",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 25"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "addon26@tests.mozilla.org",
+    version: "1.0",
+    optionsType: "4",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 26"
+  }, profileDir, undefined, "options.xul");
+
+  do_test_pending();
+  startupManager();
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "addon8@tests.mozilla.org",
+                               "addon9@tests.mozilla.org",
+                               "addon10@tests.mozilla.org",
+                               "addon11@tests.mozilla.org",
+                               "addon12@tests.mozilla.org",
+                               "addon13@tests.mozilla.org",
+                               "addon14@tests.mozilla.org",
+                               "addon15@tests.mozilla.org",
+                               "addon16@tests.mozilla.org",
+                               "addon17@tests.mozilla.org",
+                               "addon18@tests.mozilla.org",
+                               "addon19@tests.mozilla.org",
+                               "addon20@tests.mozilla.org",
+                               "addon21@tests.mozilla.org",
+                               "addon22@tests.mozilla.org",
+                               "addon23@tests.mozilla.org",
+                               "addon24@tests.mozilla.org",
+                               "addon25@tests.mozilla.org",
+                               "addon26@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
+                                         a11, a12, a13, a14, a15, a16, a17, a18, a19, a20,
+                                         a21, a22, a23, a24, a25, a26]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.id, "addon1@tests.mozilla.org");
+    do_check_eq(a1.type, "extension");
+    do_check_eq(a1.version, "1.0");
+    do_check_eq(a1.optionsURL, "chrome://test/content/options.xul");
+    do_check_eq(a1.optionsType, AddonManager.OPTIONS_TYPE_DIALOG);
+    do_check_eq(a1.aboutURL, "chrome://test/content/about.xul");
+    do_check_eq(a1.iconURL, "chrome://test/skin/icon.png");
+    do_check_eq(a1.icon64URL, "chrome://test/skin/icon64.png");
+    do_check_eq(a1.icons[32], "chrome://test/skin/icon.png");
+    do_check_eq(a1.icons[64], "chrome://test/skin/icon64.png");
+    do_check_eq(a1.name, "Test Addon 1");
+    do_check_eq(a1.description, "Test Description");
+    do_check_eq(a1.creator, "Test Creator");
+    do_check_eq(a1.homepageURL, "http://www.example.com");
+    do_check_eq(a1.developers[0], "Test Developer 1");
+    do_check_eq(a1.developers[1], "Test Developer 2");
+    do_check_eq(a1.translators[0], "Test Translator 1");
+    do_check_eq(a1.translators[1], "Test Translator 2");
+    do_check_eq(a1.contributors[0], "Test Contributor 1");
+    do_check_eq(a1.contributors[1], "Test Contributor 2");
+    do_check_true(a1.isActive);
+    do_check_false(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_true(a1.isCompatible);
+    do_check_true(a1.providesUpdatesSecurely);
+    do_check_eq(a1.blocklistState, AM_Ci.nsIBlocklistService.STATE_NOT_BLOCKED);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.id, "addon2@tests.mozilla.org");
+    do_check_true(a2.isActive);
+    do_check_false(a2.userDisabled);
+    do_check_false(a2.appDisabled);
+    do_check_true(a2.providesUpdatesSecurely);
+
+    do_check_neq(a3, null);
+    do_check_eq(a3.id, "addon3@tests.mozilla.org");
+    do_check_false(a3.isActive);
+    do_check_false(a3.userDisabled);
+    do_check_true(a3.appDisabled);
+    do_check_false(a3.providesUpdatesSecurely);
+
+    do_check_neq(a4, null);
+    do_check_eq(a4.id, "addon4@tests.mozilla.org");
+    do_check_true(a4.isActive);
+    do_check_false(a4.userDisabled);
+    do_check_false(a4.appDisabled);
+    do_check_true(a4.providesUpdatesSecurely);
+
+    do_check_neq(a5, null);
+    do_check_true(a5.isActive);
+    do_check_false(a5.userDisabled);
+    do_check_false(a5.appDisabled);
+    do_check_true(a5.isCompatible);
+
+    do_check_neq(a6, null);
+    do_check_true(a6.isActive);
+    do_check_false(a6.userDisabled);
+    do_check_false(a6.appDisabled);
+    do_check_true(a6.isCompatible);
+
+    do_check_neq(a7, null);
+    do_check_false(a7.isActive);
+    do_check_false(a7.userDisabled);
+    do_check_true(a7.appDisabled);
+    do_check_false(a7.isCompatible);
+
+    do_check_neq(a8, null);
+    do_check_false(a8.isActive);
+    do_check_false(a8.userDisabled);
+    do_check_true(a8.appDisabled);
+    do_check_false(a8.isCompatible);
+
+    do_check_neq(a9, null);
+    do_check_true(a9.isActive);
+    do_check_false(a9.userDisabled);
+    do_check_false(a9.appDisabled);
+    do_check_true(a9.isCompatible);
+
+    do_check_neq(a10, null);
+    do_check_false(a10.isActive);
+    do_check_false(a10.userDisabled);
+    do_check_true(a10.appDisabled);
+    do_check_false(a10.isCompatible);
+
+    do_check_neq(a11, null);
+    do_check_true(a11.isActive);
+    do_check_false(a11.userDisabled);
+    do_check_false(a11.appDisabled);
+    do_check_true(a11.isCompatible);
+
+    do_check_neq(a12, null);
+    do_check_false(a12.isActive);
+    do_check_false(a12.userDisabled);
+    do_check_true(a12.appDisabled);
+    do_check_false(a12.isCompatible);
+
+    do_check_neq(a13, null);
+    do_check_false(a13.isActive);
+    do_check_false(a13.userDisabled);
+    do_check_true(a13.appDisabled);
+    do_check_false(a13.isCompatible);
+
+    do_check_neq(a14, null);
+    do_check_true(a14.isActive);
+    do_check_false(a14.userDisabled);
+    do_check_false(a14.appDisabled);
+    do_check_true(a14.isCompatible);
+
+    do_check_neq(a15, null);
+    do_check_true(a15.isActive);
+    do_check_false(a15.userDisabled);
+    do_check_false(a15.appDisabled);
+    do_check_true(a15.isCompatible);
+    do_check_true(a15.providesUpdatesSecurely);
+
+    do_check_neq(a16, null);
+    do_check_true(a16.isActive);
+    do_check_false(a16.userDisabled);
+    do_check_false(a16.appDisabled);
+    do_check_true(a16.isCompatible);
+    do_check_true(a16.providesUpdatesSecurely);
+
+    do_check_neq(a17, null);
+    do_check_true(a17.isActive);
+    do_check_false(a17.userDisabled);
+    do_check_false(a17.appDisabled);
+    do_check_true(a17.isCompatible);
+    do_check_eq(a17.optionsURL, "chrome://test/content/options.xul");
+    do_check_eq(a17.optionsType, AddonManager.OPTIONS_TYPE_INLINE);
+
+    do_check_neq(a18, null);
+    do_check_true(a18.isActive);
+    do_check_false(a18.userDisabled);
+    do_check_false(a18.appDisabled);
+    do_check_true(a18.isCompatible);
+    if (Services.prefs.getBoolPref("extensions.alwaysUnpack")) {
+      do_check_eq(a18.optionsURL, Services.io.newFileURI(profileDir).spec +
+                                  "addon18@tests.mozilla.org/options.xul");
+    } else {
+      do_check_eq(a18.optionsURL, "jar:" + Services.io.newFileURI(profileDir).spec +
+                                  "addon18@tests.mozilla.org.xpi!/options.xul");
+    }
+    do_check_eq(a18.optionsType, AddonManager.OPTIONS_TYPE_INLINE);
+
+    do_check_eq(a19, null);
+
+    do_check_neq(a20, null);
+    do_check_true(a20.isActive);
+    do_check_false(a20.userDisabled);
+    do_check_false(a20.appDisabled);
+    do_check_true(a20.isCompatible);
+    do_check_eq(a20.optionsURL, "chrome://test/content/options.xul");
+    do_check_eq(a20.optionsType, AddonManager.OPTIONS_TYPE_DIALOG);
+
+    do_check_neq(a21, null);
+    do_check_true(a21.isActive);
+    do_check_false(a21.userDisabled);
+    do_check_false(a21.appDisabled);
+    do_check_true(a21.isCompatible);
+    do_check_eq(a21.optionsURL, "chrome://test/content/options.xul");
+    do_check_eq(a21.optionsType, AddonManager.OPTIONS_TYPE_TAB);
+
+    do_check_neq(a22, null);
+    do_check_eq(a22.optionsType, null);
+    do_check_eq(a22.optionsURL, null);
+
+    do_check_neq(a23, null);
+    do_check_eq(a23.optionsType, AddonManager.OPTIONS_TYPE_INLINE);
+    do_check_neq(a23.optionsURL, null);
+
+    do_check_neq(a24, null);
+    do_check_eq(a24.optionsType, AddonManager.OPTIONS_TYPE_INLINE);
+    do_check_neq(a24.optionsURL, null);
+
+    do_check_neq(a25, null);
+    do_check_eq(a25.optionsType, null);
+    do_check_eq(a25.optionsURL, null);
+
+    do_check_neq(a26, null);
+    do_check_eq(a26.optionsType, AddonManager.OPTIONS_TYPE_INLINE_INFO);
+    do_check_neq(a26.optionsURL, null);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_mapURIToAddonID.js b/toolkit/mozapps/webextensions/test/xpcshell/test_mapURIToAddonID.js
new file mode 100644
index 000000000..1dd05064e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_mapURIToAddonID.js
@@ -0,0 +1,347 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-ons URIs can be mapped to add-on IDs
+//
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+// Enable loading extensions from the user scopes
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_USER);
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+const userExtDir = gProfD.clone();
+userExtDir.append("extensions2");
+userExtDir.append(gAppInfo.ID);
+registerDirectory("XREUSysExt", userExtDir.parent);
+
+BootstrapMonitor.init();
+
+function TestProvider(result) {
+  this.result = result;
+}
+TestProvider.prototype = {
+  uri: Services.io.newURI("hellow://world", null, null),
+  id: "valid@id",
+  startup: function() {},
+  shutdown: function() {},
+  mapURIToAddonID: function(aURI) {
+    if (aURI.spec === this.uri.spec) {
+      return this.id;
+    }
+    throw Components.Exception("Not mapped", this.result);
+  }
+};
+
+function TestProviderNoMap() {}
+TestProviderNoMap.prototype = {
+  startup: function() {},
+  shutdown: function() {}
+};
+
+function check_mapping(uri, id) {
+  do_check_eq(AddonManager.mapURIToAddonID(uri), id);
+  let svc = Components.classes["@mozilla.org/addons/integration;1"].
+            getService(Components.interfaces.amIAddonManager);
+  let val = {};
+  do_check_true(svc.mapURIToAddonID(uri, val));
+  do_check_eq(val.value, id);
+}
+
+function getActiveVersion() {
+  return Services.prefs.getIntPref("bootstraptest.active_version");
+}
+
+function run_test() {
+  do_test_pending();
+
+  run_test_early();
+}
+
+function run_test_early() {
+  startupManager();
+
+  installAllFiles([do_get_addon("test_chromemanifest_1")], function() {
+    restartManager();
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(addon) {
+      let uri = addon.getResourceURI(".");
+      let id = addon.id;
+      check_mapping(uri, id);
+
+      shutdownManager();
+
+      // Force an early call, to check that mappings will get correctly
+      // initialized when the manager actually starts up.
+      // See bug 957089
+
+      // First force-initialize the XPIProvider.
+      let s = Components.utils.import(
+        "resource://gre/modules/addons/XPIProvider.jsm", {});
+
+      // Make the early API call.
+      // AddonManager still misses its provider and so doesn't work yet.
+      do_check_null(AddonManager.mapURIToAddonID(uri));
+      // But calling XPIProvider directly works immediately
+      do_check_eq(s.XPIProvider.mapURIToAddonID(uri), id);
+
+      // Actually start up the manager.
+      startupManager(false);
+
+      // Check that the mapping is there now.
+      check_mapping(uri, id);
+      do_check_eq(s.XPIProvider.mapURIToAddonID(uri), id);
+
+      run_test_nomapping();
+    });
+  });
+}
+
+function run_test_nomapping() {
+  do_check_eq(AddonManager.mapURIToAddonID(TestProvider.prototype.uri), null);
+  try {
+    let svc = Components.classes["@mozilla.org/addons/integration;1"].
+              getService(Components.interfaces.amIAddonManager);
+    let val = {};
+    do_check_false(svc.mapURIToAddonID(TestProvider.prototype.uri, val));
+  }
+  catch (ex) {
+    do_throw(ex);
+  }
+
+  run_test_1();
+}
+
+
+// Tests that add-on URIs are mappable after an install
+function run_test_1() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), function(install) {
+    ensure_test_completed();
+
+    let addon = install.addon;
+    prepare_test({
+      "bootstrap1@tests.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], function() {
+      let uri = addon.getResourceURI(".");
+      check_mapping(uri, addon.id);
+
+      BootstrapMonitor.promiseAddonStartup("bootstrap1@tests.mozilla.org").then(function() {
+        run_test_2(uri);
+      });
+    });
+    install.install();
+  });
+}
+
+// Tests that add-on URIs are still mappable, even after the add-on gets
+// disabled in-session.
+function run_test_2(uri) {
+  AddonManager.getAddonByID("bootstrap1@tests.mozilla.org", function(b1) {
+    prepare_test({
+      "bootstrap1@tests.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ]
+    });
+
+    b1.userDisabled = true;
+    ensure_test_completed();
+
+    AddonManager.getAddonByID("bootstrap1@tests.mozilla.org", function(newb1) {
+      do_check_true(newb1.userDisabled);
+      check_mapping(uri, newb1.id);
+
+      do_execute_soon(() => run_test_3(uri));
+    });
+  });
+}
+
+// Tests that add-on URIs are mappable if the add-on was never started in a
+// session
+function run_test_3(uri) {
+  restartManager();
+
+  check_mapping(uri, "bootstrap1@tests.mozilla.org");
+
+  run_test_4();
+}
+
+// Tests that add-on URIs are mappable after a restart + reenable
+function run_test_4() {
+  restartManager();
+
+  AddonManager.getAddonByID("bootstrap1@tests.mozilla.org", function(b1) {
+    prepare_test({
+      "bootstrap1@tests.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ]
+    });
+
+    b1.userDisabled = false;
+    ensure_test_completed();
+
+    AddonManager.getAddonByID("bootstrap1@tests.mozilla.org", function(newb1) {
+      let uri = newb1.getResourceURI(".");
+      check_mapping(uri, newb1.id);
+
+      do_execute_soon(run_test_5);
+    });
+  });
+}
+
+// Tests that add-on URIs are mappable after a restart
+function run_test_5() {
+  restartManager();
+
+  AddonManager.getAddonByID("bootstrap1@tests.mozilla.org", function(b1) {
+    let uri = b1.getResourceURI(".");
+    check_mapping(uri, b1.id);
+
+    do_execute_soon(run_test_6);
+  });
+}
+
+// Tests that add-on URIs are mappable after being uninstalled
+function run_test_6() {
+  AddonManager.getAddonByID("bootstrap1@tests.mozilla.org", function(b1) {
+    prepare_test({
+      "bootstrap1@tests.mozilla.org": [
+        ["onUninstalling", false],
+        "onUninstalled"
+      ]
+    });
+
+    let uri = b1.getResourceURI(".");
+    b1.uninstall();
+    ensure_test_completed();
+
+    check_mapping(uri, b1.id);
+
+    restartManager();
+    do_execute_soon(run_test_7);
+  });
+}
+
+// Tests that add-on URIs are mappable for add-ons detected at startup
+function run_test_7() {
+  shutdownManager();
+
+  manuallyInstall(do_get_addon("test_bootstrap1_1"), profileDir, "bootstrap1@tests.mozilla.org");
+
+  startupManager();
+
+  AddonManager.getAddonByID("bootstrap1@tests.mozilla.org", function(b1) {
+    let uri = b1.getResourceURI(".");
+    check_mapping(uri, b1.id);
+
+    do_execute_soon(run_test_8);
+  });
+}
+
+// Tests that temporary addon-on URIs are mappable after install and uninstall
+function run_test_8() {
+  prepare_test({
+    "bootstrap2@tests.mozilla.org": [
+      ["onInstalling", false],
+      "onInstalled"
+    ]
+  }, [
+    "onExternalInstall",
+  ], function(b2) {
+    let uri = b2.getResourceURI(".");
+    check_mapping(uri, b2.id);
+
+    prepare_test({
+      "bootstrap2@tests.mozilla.org": [
+        ["onUninstalling", false],
+        "onUninstalled"
+      ]
+    });
+
+    b2.uninstall();
+    ensure_test_completed();
+
+    check_mapping(uri, b2.id);
+
+    do_execute_soon(run_test_invalidarg);
+  });
+  AddonManager.installTemporaryAddon(do_get_addon("test_bootstrap2_1"));
+}
+
+// Tests that the AddonManager will bail when mapURIToAddonID is called with an
+// invalid argument
+function run_test_invalidarg() {
+  restartManager();
+
+  let tests = [undefined,
+               null,
+               1,
+               "string",
+               "chrome://global/content/",
+               function() {}
+               ];
+  for (var test of tests) {
+    try {
+      AddonManager.mapURIToAddonID(test);
+      throw new Error("Shouldn't be able to map the URI in question");
+    }
+    catch (ex) {
+      if (ex.result) {
+        do_check_eq(ex.result, Components.results.NS_ERROR_INVALID_ARG);
+      } else {
+        do_throw(ex);
+      }
+    }
+  }
+
+  run_test_provider();
+}
+
+// Tests that custom providers are correctly handled
+function run_test_provider() {
+  restartManager();
+
+  const provider = new TestProvider(Components.results.NS_ERROR_NOT_AVAILABLE);
+  AddonManagerPrivate.registerProvider(provider);
+
+  check_mapping(provider.uri, provider.id);
+
+  let u2 = provider.uri.clone();
+  u2.path = "notmapped";
+  do_check_eq(AddonManager.mapURIToAddonID(u2), null);
+
+  AddonManagerPrivate.unregisterProvider(provider);
+
+  run_test_provider_nomap();
+}
+
+// Tests that custom providers are correctly handled, even not implementing
+// mapURIToAddonID
+function run_test_provider_nomap() {
+  restartManager();
+
+  const provider = new TestProviderNoMap();
+  AddonManagerPrivate.registerProvider(provider);
+
+  do_check_eq(AddonManager.mapURIToAddonID(TestProvider.prototype.uri), null);
+
+  AddonManagerPrivate.unregisterProvider(provider);
+
+  do_test_finished();
+}
+
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_metadata_update.js b/toolkit/mozapps/webextensions/test/xpcshell/test_metadata_update.js
new file mode 100644
index 000000000..dbf5db485
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_metadata_update.js
@@ -0,0 +1,159 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+/*
+ * Test whether we need to block start-up to check add-on compatibility,
+ * based on how long since the last succesful metadata ping.
+ * All tests depend on having one add-on installed in the profile
+ */
+
+
+const URI_EXTENSION_UPDATE_DIALOG     = "chrome://mozapps/content/extensions/update.xul";
+const PREF_EM_SHOW_MISMATCH_UI        = "extensions.showMismatchUI";
+
+// Constants copied from AddonRepository.jsm
+const PREF_METADATA_LASTUPDATE           = "extensions.getAddons.cache.lastUpdate";
+const PREF_METADATA_UPDATETHRESHOLD_SEC  = "extensions.getAddons.cache.updateThreshold";
+const DEFAULT_METADATA_UPDATETHRESHOLD_SEC = 172800;  // two days
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+// None of this works without the add-on repository cache
+Services.prefs.setBoolPref("extensions.getAddons.cache.enabled", true);
+
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+var Cr = Components.results;
+
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+var testserver;
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// This will be called to show the compatibility update dialog.
+var WindowWatcher = {
+  expected: false,
+
+  openWindow: function(parent, url, name, features, args) {
+    do_check_true(Services.startup.interrupted);
+    do_check_eq(url, URI_EXTENSION_UPDATE_DIALOG);
+    do_check_true(this.expected);
+    this.expected = false;
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+// Return Date.now() in seconds, rounded
+function now() {
+  return Math.round(Date.now() / 1000);
+}
+
+// First time with a new profile, so we don't have a cache.lastUpdate pref
+add_task(function* checkFirstMetadata() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  Services.prefs.setBoolPref(PREF_EM_SHOW_MISMATCH_UI, true);
+
+  // Create and configure the HTTP server.
+  testserver = createHttpServer();
+  testserver.registerDirectory("/data/", do_get_file("data"));
+  testserver.registerDirectory("/addons/", do_get_file("addons"));
+  gPort = testserver.identity.primaryPort;
+  const BASE_URL  = "http://localhost:" + gPort;
+  const GETADDONS_RESULTS = BASE_URL + "/data/test_AddonRepository_cache.xml";
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, GETADDONS_RESULTS);
+
+  // Put an add-on in our profile so the metadata check will have something to do
+  var min1max2 = {
+    id: "min1max2@tests.mozilla.org",
+    version: "1.0",
+    name: "Test addon compatible with v1->v2",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  };
+  writeInstallRDFForExtension(min1max2, profileDir);
+
+  startupManager();
+
+  // Make sure that updating metadata for the first time sets the lastUpdate preference
+  yield AddonRepository.repopulateCache();
+  do_print("Update done, getting last update");
+  let lastUpdate = Services.prefs.getIntPref(PREF_METADATA_LASTUPDATE);
+  do_check_true(lastUpdate > 0);
+
+  // Make sure updating metadata again updates the preference
+  let oldUpdate = lastUpdate - 2 * DEFAULT_METADATA_UPDATETHRESHOLD_SEC;
+  Services.prefs.setIntPref(PREF_METADATA_LASTUPDATE, oldUpdate);
+  yield AddonRepository.repopulateCache();
+  do_check_neq(oldUpdate, Services.prefs.getIntPref(PREF_METADATA_LASTUPDATE));
+});
+
+// First upgrade with no lastUpdate pref and no add-ons changing shows UI
+add_task(function* upgrade_no_lastupdate() {
+  Services.prefs.clearUserPref(PREF_METADATA_LASTUPDATE);
+
+  WindowWatcher.expected = true;
+  yield promiseRestartManager("2");
+  do_check_false(WindowWatcher.expected);
+});
+
+// Upgrade with lastUpdate more than default threshold and no add-ons changing shows UI
+add_task(function* upgrade_old_lastupdate() {
+  let oldEnough = now() - DEFAULT_METADATA_UPDATETHRESHOLD_SEC - 1000;
+  Services.prefs.setIntPref(PREF_METADATA_LASTUPDATE, oldEnough);
+
+  WindowWatcher.expected = true;
+  // upgrade, downgrade, it has the same effect on the code path under test
+  yield promiseRestartManager("1");
+  do_check_false(WindowWatcher.expected);
+});
+
+// Upgrade with lastUpdate less than default threshold and no add-ons changing doesn't show
+add_task(function* upgrade_young_lastupdate() {
+  let notOldEnough = now() - DEFAULT_METADATA_UPDATETHRESHOLD_SEC + 1000;
+  Services.prefs.setIntPref(PREF_METADATA_LASTUPDATE, notOldEnough);
+
+  WindowWatcher.expected = false;
+  yield promiseRestartManager("2");
+  do_check_false(WindowWatcher.expected);
+});
+
+// Repeat more-than and less-than but with updateThreshold preference set
+// Upgrade with lastUpdate more than pref threshold and no add-ons changing shows UI
+const TEST_UPDATETHRESHOLD_SEC = 50000;
+add_task(function* upgrade_old_pref_lastupdate() {
+  Services.prefs.setIntPref(PREF_METADATA_UPDATETHRESHOLD_SEC, TEST_UPDATETHRESHOLD_SEC);
+
+  let oldEnough = now() - TEST_UPDATETHRESHOLD_SEC - 1000;
+  Services.prefs.setIntPref(PREF_METADATA_LASTUPDATE, oldEnough);
+
+  WindowWatcher.expected = true;
+  yield promiseRestartManager("1");
+  do_check_false(WindowWatcher.expected);
+});
+
+// Upgrade with lastUpdate less than pref threshold and no add-ons changing doesn't show
+add_task(function* upgrade_young_pref_lastupdate() {
+  let notOldEnough = now() - TEST_UPDATETHRESHOLD_SEC + 1000;
+  Services.prefs.setIntPref(PREF_METADATA_LASTUPDATE, notOldEnough);
+
+  WindowWatcher.expected = false;
+  yield promiseRestartManager("2");
+  do_check_false(WindowWatcher.expected);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_migrate1.js b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate1.js
new file mode 100644
index 000000000..8c13593b9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate1.js
@@ -0,0 +1,231 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we migrate data from the old rdf style database
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 4",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var theme1 = {
+  id: "theme1@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 1",
+  type: 4,
+  internalName: "theme1/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+var theme2 = {
+  id: "theme2@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 2",
+  type: 4,
+  internalName: "theme2/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(theme1, profileDir);
+  writeInstallRDFForExtension(theme2, profileDir);
+
+  let stagedXPIs = profileDir.clone();
+  stagedXPIs.append("staged-xpis");
+  stagedXPIs.append("addon6@tests.mozilla.org");
+  stagedXPIs.create(AM_Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+
+  let addon6 = do_get_addon("test_migrate6");
+  addon6.copyTo(stagedXPIs, "tmp.xpi");
+  stagedXPIs = stagedXPIs.parent;
+
+  stagedXPIs.append("addon7@tests.mozilla.org");
+  stagedXPIs.create(AM_Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+
+  let addon7 = do_get_addon("test_migrate7");
+  addon7.copyTo(stagedXPIs, "tmp.xpi");
+  stagedXPIs = stagedXPIs.parent;
+
+  stagedXPIs.append("addon8@tests.mozilla.org");
+  stagedXPIs.create(AM_Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+  let addon8 = do_get_addon("test_migrate8");
+  addon8.copyTo(stagedXPIs, "tmp.xpi");
+  stagedXPIs = stagedXPIs.parent;
+
+  let old = do_get_file("data/test_migrate.rdf");
+  old.copyTo(gProfD, "extensions.rdf");
+
+  let oldCache = gProfD.clone();
+  oldCache.append("extensions.cache");
+  oldCache.create(AM_Ci.nsIFile.NORMAL_FILE_TYPE, FileUtils.PERMS_FILE);
+
+  // Theme state is determined by the selected theme pref
+  Services.prefs.setCharPref("general.skins.selectedSkin", "theme1/1.0");
+
+  Services.prefs.setCharPref("extensions.lastAppVersion", "1");
+
+  startupManager();
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", []);
+  check_startup_changes("enabled", []);
+
+  do_check_false(oldCache.exists());
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "addon8@tests.mozilla.org",
+                               "theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([a1, a2, a3,
+                                                                      a4, a5, a6,
+                                                                      a7, a8, t1,
+                                                                      t2]) {
+    // addon1 was user and app enabled in the old extensions.rdf
+    do_check_neq(a1, null);
+    do_check_false(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_true(a1.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_false(a1.hasBinaryComponents);
+    do_check_true(a1.seen);
+
+    // addon2 was user disabled and app enabled in the old extensions.rdf
+    do_check_neq(a2, null);
+    do_check_true(a2.userDisabled);
+    do_check_false(a2.appDisabled);
+    do_check_false(a2.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_false(a2.hasBinaryComponents);
+    do_check_true(a2.seen);
+
+    // addon3 was pending user disable and app disabled in the old extensions.rdf
+    do_check_neq(a3, null);
+    do_check_true(a3.userDisabled);
+    do_check_true(a3.appDisabled);
+    do_check_false(a3.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+    do_check_false(a3.hasBinaryComponents);
+    do_check_true(a3.seen);
+
+    // addon4 was pending user enable and app disabled in the old extensions.rdf
+    do_check_neq(a4, null);
+    do_check_false(a4.userDisabled);
+    do_check_true(a4.appDisabled);
+    do_check_false(a4.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+    do_check_false(a4.hasBinaryComponents);
+    do_check_true(a4.seen);
+
+    // addon5 was disabled and compatible but a new version has been installed
+    // since, it should still be disabled but should be incompatible
+    do_check_neq(a5, null);
+    do_check_true(a5.userDisabled);
+    do_check_true(a5.appDisabled);
+    do_check_false(a5.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a5.id));
+    do_check_false(a5.hasBinaryComponents);
+    do_check_true(a5.seen);
+
+    // addon6, addon7 and addon8 will have been lost as they were staged in the
+    // pre-Firefox 4.0 directory
+    do_check_eq(a6, null);
+    do_check_eq(a7, null);
+    do_check_eq(a8, null);
+
+    // Theme 1 was previously enabled
+    do_check_neq(t1, null);
+    do_check_false(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_true(t1.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, t1.id));
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_true(t1.seen);
+
+    // Theme 2 was previously disabled
+    do_check_neq(t2, null);
+    do_check_true(t2.userDisabled);
+    do_check_false(t2.appDisabled);
+    do_check_false(t2.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, t2.id));
+    do_check_true(hasFlag(t2.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_true(t2.seen);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_migrate2.js b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate2.js
new file mode 100644
index 000000000..cc7336713
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate2.js
@@ -0,0 +1,267 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we migrate data from SQLITE databases
+// Note that since the database doesn't contain the foreignInstall field we
+// should just assume that no add-ons  in the user profile were foreignInstalls
+
+// Enable loading extensions from the user and system scopes
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_USER +
+                          AddonManager.SCOPE_SYSTEM);
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 4",
+  strictCompatibility: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0",
+    maxVersion: "0"
+  }]
+};
+
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 6",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0",
+    maxVersion: "0"
+  }]
+};
+
+var addon7 = {
+  id: "addon7@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 7",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon8 = {
+  id: "addon8@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 8",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+const globalDir = gProfD.clone();
+globalDir.append("extensions2");
+globalDir.append(gAppInfo.ID);
+registerDirectory("XRESysSExtPD", globalDir.parent);
+const userDir = gProfD.clone();
+userDir.append("extensions3");
+userDir.append(gAppInfo.ID);
+registerDirectory("XREUSysExt", userDir.parent);
+
+function run_test() {
+  do_test_pending();
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(addon7, globalDir);
+  writeInstallRDFForExtension(addon8, userDir);
+
+  // Write out a minimal database
+  let dbfile = gProfD.clone();
+  dbfile.append("extensions.sqlite");
+  let db = AM_Cc["@mozilla.org/storage/service;1"].
+           getService(AM_Ci.mozIStorageService).
+           openDatabase(dbfile);
+  db.createTable("addon", "internal_id INTEGER PRIMARY KEY AUTOINCREMENT, " +
+                          "id TEXT, location TEXT, version TEXT, active INTEGER, " +
+                          "userDisabled INTEGER, installDate INTEGER");
+  db.createTable("targetApplication", "addon_internal_id INTEGER, " +
+                                      "id TEXT, minVersion TEXT, maxVersion TEXT");
+  let stmt = db.createStatement("INSERT INTO addon VALUES (NULL, :id, :location, " +
+                                ":version, :active, :userDisabled, :installDate)");
+
+  let internal_ids = {};
+
+  [["addon1@tests.mozilla.org", "app-profile", "1.0", "1", "0", "0"],
+   ["addon2@tests.mozilla.org", "app-profile", "2.0", "0", "1", "0"],
+   ["addon3@tests.mozilla.org", "app-profile", "2.0", "1", "1", "0"],
+   ["addon4@tests.mozilla.org", "app-profile", "2.0", "0", "0", "0"],
+   ["addon5@tests.mozilla.org", "app-profile", "2.0", "1", "0", "0"],
+   ["addon6@tests.mozilla.org", "app-profile", "1.0", "0", "1", "0"],
+   ["addon7@tests.mozilla.org", "app-system-share", "1.0", "1", "0", "0"],
+   ["addon8@tests.mozilla.org", "app-system-user", "1.0", "1", "0", "0"]].forEach(function(a) {
+    stmt.params.id = a[0];
+    stmt.params.location = a[1];
+    stmt.params.version = a[2];
+    stmt.params.active = a[3];
+    stmt.params.userDisabled = a[4];
+    stmt.params.installDate = a[5];
+    stmt.execute();
+    internal_ids[a[0]] = db.lastInsertRowID;
+  });
+  stmt.finalize();
+
+  // Add updated target application into for addon5
+  stmt = db.createStatement("INSERT INTO targetApplication VALUES " +
+                            "(:internal_id, :id, :minVersion, :maxVersion)");
+  stmt.params.internal_id = internal_ids["addon5@tests.mozilla.org"];
+  stmt.params.id = "xpcshell@tests.mozilla.org";
+  stmt.params.minVersion = "0";
+  stmt.params.maxVersion = "1";
+  stmt.execute();
+
+  // Add updated target application into for addon6
+  stmt.params.internal_id = internal_ids["addon6@tests.mozilla.org"];
+  stmt.params.id = "xpcshell@tests.mozilla.org";
+  stmt.params.minVersion = "0";
+  stmt.params.maxVersion = "1";
+  stmt.execute();
+  stmt.finalize();
+
+  db.schemaVersion = 10000;
+  Services.prefs.setIntPref("extensions.databaseSchema", 14);
+  db.close();
+
+  startupManager();
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", []);
+  check_startup_changes("enabled", []);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "addon8@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5, a6, a7, a8]) {
+    // addon1 was enabled in the database
+    do_check_neq(a1, null);
+    do_check_false(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_true(a1.isActive);
+    do_check_false(a1.strictCompatibility);
+    do_check_false(a1.foreignInstall);
+    do_check_true(a1.seen);
+    // addon2 was disabled in the database
+    do_check_neq(a2, null);
+    do_check_true(a2.userDisabled);
+    do_check_false(a2.appDisabled);
+    do_check_false(a2.isActive);
+    do_check_false(a2.strictCompatibility);
+    do_check_false(a2.foreignInstall);
+    do_check_true(a2.seen);
+    // addon3 was pending-disable in the database
+    do_check_neq(a3, null);
+    do_check_true(a3.userDisabled);
+    do_check_false(a3.appDisabled);
+    do_check_false(a3.isActive);
+    do_check_false(a3.strictCompatibility);
+    do_check_false(a3.foreignInstall);
+    do_check_true(a3.seen);
+    // addon4 was pending-enable in the database
+    do_check_neq(a4, null);
+    do_check_false(a4.userDisabled);
+    do_check_false(a4.appDisabled);
+    do_check_true(a4.isActive);
+    do_check_true(a4.strictCompatibility);
+    do_check_false(a4.foreignInstall);
+    do_check_true(a4.seen);
+    // addon5 was enabled in the database but needed a compatibility update
+    do_check_neq(a5, null);
+    do_check_false(a5.userDisabled);
+    do_check_false(a5.appDisabled);
+    do_check_true(a5.isActive);
+    do_check_false(a5.strictCompatibility);
+    do_check_false(a5.foreignInstall);
+    do_check_true(a5.seen);
+    // addon6 was disabled and compatible but a new version has been installed
+    // since, it should still be disabled but should be incompatible
+    do_check_neq(a6, null);
+    do_check_true(a6.userDisabled);
+    do_check_true(a6.appDisabled);
+    do_check_false(a6.isActive);
+    do_check_false(a6.strictCompatibility);
+    do_check_false(a6.foreignInstall);
+    do_check_true(a6.seen);
+    // addon7 is in the global install location so should be a foreignInstall
+    do_check_neq(a7, null);
+    do_check_false(a7.userDisabled);
+    do_check_false(a7.appDisabled);
+    do_check_true(a7.isActive);
+    do_check_false(a7.strictCompatibility);
+    do_check_true(a7.foreignInstall);
+    do_check_true(a7.seen);
+    // addon8 is in the user install location so should be a foreignInstall
+    do_check_neq(a8, null);
+    do_check_false(a8.userDisabled);
+    do_check_false(a8.appDisabled);
+    do_check_true(a8.isActive);
+    do_check_false(a8.strictCompatibility);
+    do_check_true(a8.foreignInstall);
+    do_check_true(a8.seen);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_migrate3.js b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate3.js
new file mode 100644
index 000000000..71bd66603
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate3.js
@@ -0,0 +1,229 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we migrate data from the old extensions.rdf database. This
+// matches test_migrate1.js however it runs with a lightweight theme selected
+// so the themes should appear disabled.
+
+Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm");
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 4",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var theme1 = {
+  id: "theme1@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 1",
+  type: 4,
+  internalName: "theme1/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+var theme2 = {
+  id: "theme2@tests.mozilla.org",
+  version: "1.0",
+  name: "Theme 2",
+  type: 4,
+  internalName: "theme2/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(theme1, profileDir);
+  writeInstallRDFForExtension(theme2, profileDir);
+
+  // Cannot use the LightweightThemeManager before AddonManager has been started
+  // so inject the correct prefs
+  Services.prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify([{
+    id: "1",
+    version: "1",
+    name: "Test LW Theme",
+    description: "A test theme",
+    author: "Mozilla",
+    homepageURL: "http://localhost/data/index.html",
+    headerURL: "http://localhost/data/header.png",
+    footerURL: "http://localhost/data/footer.png",
+    previewURL: "http://localhost/data/preview.png",
+    iconURL: "http://localhost/data/icon.png"
+  }]));
+  Services.prefs.setCharPref("lightweightThemes.selectedThemeID", "1");
+
+  let stagedXPIs = profileDir.clone();
+  stagedXPIs.append("staged-xpis");
+  stagedXPIs.append("addon6@tests.mozilla.org");
+  stagedXPIs.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+
+  let addon6 = do_get_addon("test_migrate6");
+  addon6.copyTo(stagedXPIs, "tmp.xpi");
+  stagedXPIs = stagedXPIs.parent;
+
+  stagedXPIs.append("addon7@tests.mozilla.org");
+  stagedXPIs.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+
+  let addon7 = do_get_addon("test_migrate7");
+  addon7.copyTo(stagedXPIs, "tmp.xpi");
+  stagedXPIs = stagedXPIs.parent;
+
+  let old = do_get_file("data/test_migrate.rdf");
+  old.copyTo(gProfD, "extensions.rdf");
+
+  // Theme state is determined by the selected theme pref
+  Services.prefs.setCharPref("general.skins.selectedSkin", "theme1/1.0");
+
+  startupManager();
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", []);
+  check_startup_changes("enabled", []);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([a1, a2, a3,
+                                                                      a4, a5, a6,
+                                                                      a7, t1, t2]) {
+    // addon1 was user and app enabled in the old extensions.rdf
+    do_check_neq(a1, null);
+    do_check_false(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_true(a1.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_true(a1.seen);
+
+    // addon2 was user disabled and app enabled in the old extensions.rdf
+    do_check_neq(a2, null);
+    do_check_true(a2.userDisabled);
+    do_check_false(a2.appDisabled);
+    do_check_false(a2.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_true(a2.seen);
+
+    // addon3 was pending user disable and app disabled in the old extensions.rdf
+    do_check_neq(a3, null);
+    do_check_true(a3.userDisabled);
+    do_check_true(a3.appDisabled);
+    do_check_false(a3.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+    do_check_true(a3.seen);
+
+    // addon4 was pending user enable and app disabled in the old extensions.rdf
+    do_check_neq(a4, null);
+    do_check_false(a4.userDisabled);
+    do_check_true(a4.appDisabled);
+    do_check_false(a4.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+    do_check_true(a4.seen);
+
+    // addon5 was disabled and compatible but a new version has been installed
+    // since, it should still be disabled but should be incompatible
+    do_check_neq(a5, null);
+    do_check_true(a5.userDisabled);
+    do_check_true(a5.appDisabled);
+    do_check_false(a5.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a5.id));
+    do_check_true(a5.seen);
+
+    // addon6 and addon7 will have been lost as they were staged in the
+    // pre-Firefox 4.0 directory
+    do_check_eq(a6, null);
+    do_check_eq(a7, null);
+
+    // Theme 1 was previously disabled
+    do_check_neq(t1, null);
+    do_check_true(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_false(t1.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, t1.id));
+    do_check_true(hasFlag(t1.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_true(t1.seen);
+
+    // Theme 2 was previously disabled
+    do_check_neq(t2, null);
+    do_check_true(t2.userDisabled);
+    do_check_false(t2.appDisabled);
+    do_check_false(t2.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, t2.id));
+    do_check_true(hasFlag(t2.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_true(t2.seen);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_migrate4.js b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate4.js
new file mode 100644
index 000000000..fad015886
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate4.js
@@ -0,0 +1,321 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we migrate data from a previous version of the JSON database
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+mapFile("/data/test_migrate4.rdf", testserver);
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 4",
+  strictCompatibility: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 5",
+  updateURL: "http://localhost:" + gPort + "/data/test_migrate4.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0",
+    maxVersion: "1"
+  }]
+};
+
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 6",
+  updateURL: "http://localhost:" + gPort + "/data/test_migrate4.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0",
+    maxVersion: "1"
+  }]
+};
+
+var defaultTheme = {
+  id: "default@tests.mozilla.org",
+  version: "1.0",
+  name: "Default",
+  internalName: "classic/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+var oldSyncGUIDs = {};
+
+function prepare_profile() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(defaultTheme, profileDir);
+
+  startupManager();
+  installAllFiles([do_get_addon("test_migrate8"), do_get_addon("test_migrate9")],
+                  function() {
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon2@tests.mozilla.org",
+                                 "addon3@tests.mozilla.org",
+                                 "addon4@tests.mozilla.org",
+                                 "addon5@tests.mozilla.org",
+                                 "addon6@tests.mozilla.org",
+                                 "addon9@tests.mozilla.org"],
+                                 function([a1, a2, a3, a4, a5, a6, a9]) {
+      a1.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DEFAULT;
+      a2.userDisabled = true;
+      a2.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+      a3.applyBackgroundUpdates = AddonManager.AUTOUPDATE_ENABLE;
+      a4.userDisabled = true;
+      a6.userDisabled = true;
+      a9.userDisabled = false;
+
+      for (let addon of [a1, a2, a3, a4, a5, a6]) {
+        oldSyncGUIDs[addon.id] = addon.syncGUID;
+      }
+
+      a6.findUpdates({
+        onUpdateAvailable: function(aAddon, aInstall6) {
+          AddonManager.getInstallForURL("http://localhost:" + gPort + "/addons/test_migrate4_7.xpi", function(aInstall7) {
+            completeAllInstalls([aInstall6, aInstall7], function() {
+              restartManager();
+
+              AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                           "addon2@tests.mozilla.org",
+                                           "addon3@tests.mozilla.org",
+                                           "addon4@tests.mozilla.org",
+                                           "addon5@tests.mozilla.org",
+                                           "addon6@tests.mozilla.org"],
+                                           function([a1_2, a2_2, a3_2, a4_2, a5_2, a6_2]) {
+                a3_2.userDisabled = true;
+                a4_2.userDisabled = false;
+
+                a5_2.findUpdates({
+                  onUpdateFinished: function() {
+                    do_execute_soon(perform_migration);
+                  }
+                }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+              });
+            });
+          }, "application/x-xpinstall");
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+}
+
+function perform_migration() {
+  shutdownManager();
+
+  // Turn on disabling for all scopes
+  Services.prefs.setIntPref("extensions.autoDisableScopes", 15);
+
+  changeXPIDBVersion(1, data => {
+    // Delete the seen property from all add-ons to make sure it defaults to true
+    for (let addon of data.addons) {
+      delete addon.seen;
+    }
+  });
+  Services.prefs.setIntPref("extensions.databaseSchema", 1);
+
+  gAppInfo.version = "2"
+  startupManager(true);
+  test_results();
+}
+
+function test_results() {
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", []);
+  check_startup_changes("enabled", []);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org",
+                               "addon8@tests.mozilla.org",
+                               "addon9@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5, a6, a7, a8, a9]) {
+    // addon1 was enabled
+    do_check_neq(a1, null);
+    do_check_eq(a1.syncGUID, oldSyncGUIDs[a1.id]);
+    do_check_false(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_true(a1.isActive);
+    do_check_eq(a1.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DEFAULT);
+    do_check_true(a1.foreignInstall);
+    do_check_true(a1.seen);
+    do_check_false(a1.hasBinaryComponents);
+    do_check_false(a1.strictCompatibility);
+
+    // addon2 was disabled
+    do_check_neq(a2, null);
+    do_check_eq(a2.syncGUID, oldSyncGUIDs[a2.id]);
+    do_check_true(a2.userDisabled);
+    do_check_false(a2.appDisabled);
+    do_check_false(a2.isActive);
+    do_check_eq(a2.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DISABLE);
+    do_check_true(a2.foreignInstall);
+    do_check_true(a2.seen);
+    do_check_false(a2.hasBinaryComponents);
+    do_check_false(a2.strictCompatibility);
+
+    // addon3 was pending-disable in the database
+    do_check_neq(a3, null);
+    do_check_eq(a3.syncGUID, oldSyncGUIDs[a3.id]);
+    do_check_true(a3.userDisabled);
+    do_check_false(a3.appDisabled);
+    do_check_false(a3.isActive);
+    do_check_eq(a3.applyBackgroundUpdates, AddonManager.AUTOUPDATE_ENABLE);
+    do_check_true(a3.foreignInstall);
+    do_check_true(a3.seen);
+    do_check_false(a3.hasBinaryComponents);
+    do_check_false(a3.strictCompatibility);
+
+    // addon4 was pending-enable in the database
+    do_check_neq(a4, null);
+    do_check_eq(a4.syncGUID, oldSyncGUIDs[a4.id]);
+    do_check_false(a4.userDisabled);
+    do_check_false(a4.appDisabled);
+    do_check_true(a4.isActive);
+    do_check_eq(a4.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DEFAULT);
+    do_check_true(a4.foreignInstall);
+    do_check_true(a4.seen);
+    do_check_false(a4.hasBinaryComponents);
+    do_check_true(a4.strictCompatibility);
+
+    // addon5 was enabled in the database but needed a compatibility update
+    do_check_neq(a5, null);
+    do_check_false(a5.userDisabled);
+    do_check_false(a5.appDisabled);
+    do_check_true(a5.isActive);
+    do_check_eq(a4.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DEFAULT);
+    do_check_true(a5.foreignInstall);
+    do_check_true(a5.seen);
+    do_check_false(a5.hasBinaryComponents);
+    do_check_false(a5.strictCompatibility);
+
+    // addon6 was disabled and compatible but a new version has been installed
+    do_check_neq(a6, null);
+    do_check_eq(a6.syncGUID, oldSyncGUIDs[a6.id]);
+    do_check_eq(a6.version, "2.0");
+    do_check_true(a6.userDisabled);
+    do_check_false(a6.appDisabled);
+    do_check_false(a6.isActive);
+    do_check_eq(a6.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DEFAULT);
+    do_check_true(a6.foreignInstall);
+    do_check_true(a6.seen);
+    do_check_eq(a6.sourceURI.spec, "http://localhost:" + gPort + "/addons/test_migrate4_6.xpi");
+    do_check_eq(a6.releaseNotesURI.spec, "http://example.com/updateInfo.xhtml");
+    do_check_false(a6.hasBinaryComponents);
+    do_check_false(a6.strictCompatibility);
+
+    // addon7 was installed manually
+    do_check_neq(a7, null);
+    do_check_eq(a7.version, "1.0");
+    do_check_false(a7.userDisabled);
+    do_check_false(a7.appDisabled);
+    do_check_true(a7.isActive);
+    do_check_eq(a7.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DEFAULT);
+    do_check_false(a7.foreignInstall);
+    do_check_true(a7.seen);
+    do_check_eq(a7.sourceURI.spec, "http://localhost:" + gPort + "/addons/test_migrate4_7.xpi");
+    do_check_eq(a7.releaseNotesURI, null);
+    do_check_false(a7.hasBinaryComponents);
+    do_check_false(a7.strictCompatibility);
+
+    // addon8 was enabled and has binary components
+    do_check_neq(a8, null);
+    do_check_false(a8.userDisabled);
+    do_check_false(a8.appDisabled);
+    do_check_true(a8.isActive);
+    do_check_false(a8.foreignInstall);
+    do_check_true(a8.seen);
+    do_check_true(a8.hasBinaryComponents);
+    do_check_false(a8.strictCompatibility);
+
+    // addon9 is the active theme
+    do_check_neq(a9, null);
+    do_check_false(a9.userDisabled);
+    do_check_false(a9.appDisabled);
+    do_check_true(a9.isActive);
+    do_check_false(a9.foreignInstall);
+    do_check_true(a9.seen);
+    do_check_false(a9.hasBinaryComponents);
+    do_check_true(a9.strictCompatibility);
+
+    testserver.stop(do_test_finished);
+  });
+}
+
+function run_test() {
+  do_test_pending();
+
+  prepare_profile();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_migrate5.js b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate5.js
new file mode 100644
index 000000000..885cd5a7c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate5.js
@@ -0,0 +1,139 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we fail to migrate but still start up ok when there is a SQLITE database
+// with no useful data in it.
+
+const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0",
+    maxVersion: "0"
+  }]
+};
+
+var defaultTheme = {
+  id: "default@tests.mozilla.org",
+  version: "2.0",
+  name: "Default theme",
+  internalName: "classic/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var theme1 = {
+  id: "theme1@tests.mozilla.org",
+  version: "2.0",
+  name: "Test theme",
+  internalName: "theme1/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(defaultTheme, profileDir);
+  writeInstallRDFForExtension(theme1, profileDir);
+
+  Services.prefs.setCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN, "theme1/1.0");
+
+  // Write out a broken database (no userDisabled field)
+  let dbfile = gProfD.clone();
+  dbfile.append("extensions.sqlite");
+  let db = AM_Cc["@mozilla.org/storage/service;1"].
+           getService(AM_Ci.mozIStorageService).
+           openDatabase(dbfile);
+  db.createTable("addon", "internal_id INTEGER PRIMARY KEY AUTOINCREMENT, " +
+                          "id TEXT, location TEXT, version TEXT, active INTEGER, " +
+                          "installDate INTEGER");
+  db.createTable("targetApplication", "addon_internal_id INTEGER, " +
+                                      "id TEXT, minVersion TEXT, maxVersion TEXT");
+  let stmt = db.createStatement("INSERT INTO addon VALUES (NULL, :id, :location, " +
+                                ":version, :active, :installDate)");
+
+  let internal_ids = {};
+
+  [["addon1@tests.mozilla.org", "app-profile", "1.0", "1", "0"],
+   ["addon2@tests.mozilla.org", "app-profile", "2.0", "0", "0"],
+   ["default@tests.mozilla.org", "app-profile", "2.0", "1", "0"],
+   ["theme1@tests.mozilla.org", "app-profile", "2.0", "0", "0"]].forEach(function(a) {
+    stmt.params.id = a[0];
+    stmt.params.location = a[1];
+    stmt.params.version = a[2];
+    stmt.params.active = a[3];
+    stmt.params.installDate = a[4];
+    stmt.execute();
+    internal_ids[a[0]] = db.lastInsertRowID;
+  });
+  stmt.finalize();
+
+  db.schemaVersion = 100;
+  Services.prefs.setIntPref("extensions.databaseSchema", 100);
+  db.close();
+
+  startupManager();
+  check_startup_changes("installed", []);
+  check_startup_changes("updated", []);
+  check_startup_changes("uninstalled", []);
+  check_startup_changes("disabled", []);
+  check_startup_changes("enabled", []);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "default@tests.mozilla.org",
+                               "theme1@tests.mozilla.org"],
+                               function([a1, a2, d, t1]) {
+    do_check_neq(a1, null);
+    do_check_false(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_true(a1.isActive);
+
+    do_check_neq(a2, null);
+    do_check_false(a2.userDisabled);
+    do_check_true(a2.appDisabled);
+    do_check_false(a2.isActive);
+
+    // Should have enabled the selected theme
+    do_check_neq(t1, null);
+    do_check_false(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_true(t1.isActive);
+
+    do_check_neq(d, null);
+    do_check_true(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_false(d.isActive);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_migrateAddonRepository.js b/toolkit/mozapps/webextensions/test/xpcshell/test_migrateAddonRepository.js
new file mode 100644
index 000000000..d9cfc8790
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_migrateAddonRepository.js
@@ -0,0 +1,127 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const EXPECTED_SCHEMA_VERSION = 4;
+var dbfile;
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  // Write out a minimal database.
+  dbfile = gProfD.clone();
+  dbfile.append("addons.sqlite");
+  let db = AM_Cc["@mozilla.org/storage/service;1"].
+           getService(AM_Ci.mozIStorageService).
+           openDatabase(dbfile);
+
+  db.createTable("addon",
+                 "internal_id INTEGER PRIMARY KEY AUTOINCREMENT, " +
+                 "id TEXT UNIQUE, " +
+                 "type TEXT, " +
+                 "name TEXT, " +
+                 "version TEXT, " +
+                 "creator TEXT, " +
+                 "creatorURL TEXT, " +
+                 "description TEXT, " +
+                 "fullDescription TEXT, " +
+                 "developerComments TEXT, " +
+                 "eula TEXT, " +
+                 "iconURL TEXT, " +
+                 "homepageURL TEXT, " +
+                 "supportURL TEXT, " +
+                 "contributionURL TEXT, " +
+                 "contributionAmount TEXT, " +
+                 "averageRating INTEGER, " +
+                 "reviewCount INTEGER, " +
+                 "reviewURL TEXT, " +
+                 "totalDownloads INTEGER, " +
+                 "weeklyDownloads INTEGER, " +
+                 "dailyUsers INTEGER, " +
+                 "sourceURI TEXT, " +
+                 "repositoryStatus INTEGER, " +
+                 "size INTEGER, " +
+                 "updateDate INTEGER");
+
+  db.createTable("developer",
+                 "addon_internal_id INTEGER, " +
+                 "num INTEGER, " +
+                 "name TEXT, " +
+                 "url TEXT, " +
+                 "PRIMARY KEY (addon_internal_id, num)");
+
+  db.createTable("screenshot",
+                 "addon_internal_id INTEGER, " +
+                 "num INTEGER, " +
+                 "url TEXT, " +
+                 "thumbnailURL TEXT, " +
+                 "caption TEXT, " +
+                 "PRIMARY KEY (addon_internal_id, num)");
+
+  let insertStmt = db.createStatement("INSERT INTO addon (id) VALUES (:id)");
+  insertStmt.params.id = "test1@tests.mozilla.org";
+  insertStmt.execute();
+  insertStmt.finalize();
+
+  insertStmt = db.createStatement("INSERT INTO screenshot VALUES " +
+                            "(:addon_internal_id, :num, :url, :thumbnailURL, :caption)");
+
+  insertStmt.params.addon_internal_id = 1;
+  insertStmt.params.num = 0;
+  insertStmt.params.url = "http://localhost/full1-1.png";
+  insertStmt.params.thumbnailURL = "http://localhost/thumbnail1-1.png";
+  insertStmt.params.caption = "Caption 1 - 1";
+  insertStmt.execute();
+  insertStmt.finalize();
+
+  db.schemaVersion = 1;
+  db.close();
+
+
+  Services.prefs.setBoolPref("extensions.getAddons.cache.enabled", true);
+  AddonRepository.getCachedAddonByID("test1@tests.mozilla.org", function (aAddon) {
+    do_check_neq(aAddon, null);
+    do_check_eq(aAddon.screenshots.length, 1);
+    do_check_true(aAddon.screenshots[0].width === null);
+    do_check_true(aAddon.screenshots[0].height === null);
+    do_check_true(aAddon.screenshots[0].thumbnailWidth === null);
+    do_check_true(aAddon.screenshots[0].thumbnailHeight === null);
+    do_check_eq(aAddon.iconURL, undefined);
+    do_check_eq(JSON.stringify(aAddon.icons), "{}");
+    AddonRepository.shutdown().then(
+      function checkAfterRepoShutdown() {
+        // Check the DB schema has changed once AddonRepository has freed it.
+        db = AM_Cc["@mozilla.org/storage/service;1"].
+             getService(AM_Ci.mozIStorageService).
+             openDatabase(dbfile);
+        do_check_eq(db.schemaVersion, EXPECTED_SCHEMA_VERSION);
+        do_check_true(db.indexExists("developer_idx"));
+        do_check_true(db.indexExists("screenshot_idx"));
+        do_check_true(db.indexExists("compatibility_override_idx"));
+        do_check_true(db.tableExists("compatibility_override"));
+        do_check_true(db.indexExists("icon_idx"));
+        do_check_true(db.tableExists("icon"));
+
+        // Check the trigger is working
+        db.executeSimpleSQL("INSERT INTO addon (id, type, name) VALUES('test_addon', 'extension', 'Test Addon')");
+        let internalID = db.lastInsertRowID;
+        db.executeSimpleSQL("INSERT INTO compatibility_override (addon_internal_id, num, type) VALUES('" + internalID + "', '1', 'incompatible')");
+
+        let selectStmt = db.createStatement("SELECT COUNT(*) AS count FROM compatibility_override");
+        selectStmt.executeStep();
+        do_check_eq(selectStmt.row.count, 1);
+        selectStmt.reset();
+
+        db.executeSimpleSQL("DELETE FROM addon");
+        selectStmt.executeStep();
+        do_check_eq(selectStmt.row.count, 0);
+        selectStmt.finalize();
+
+        db.close();
+        do_test_finished();
+      },
+      do_report_unexpected_exception
+    );
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_migrate_max_version.js b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate_max_version.js
new file mode 100644
index 000000000..171ac411e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_migrate_max_version.js
@@ -0,0 +1,103 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Checks that we don't migrate data from SQLITE if
+// the "extensions.databaseSchema" preference shows we've
+// already upgraded to JSON
+
+// Enable loading extensions from the user and system scopes
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_USER +
+                          AddonManager.SCOPE_SYSTEM);
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  writeInstallRDFForExtension(addon1, profileDir);
+
+  // Write out a minimal database
+  let dbfile = gProfD.clone();
+  dbfile.append("extensions.sqlite");
+  let db = AM_Cc["@mozilla.org/storage/service;1"].
+           getService(AM_Ci.mozIStorageService).
+           openDatabase(dbfile);
+  db.createTable("addon", "internal_id INTEGER PRIMARY KEY AUTOINCREMENT, " +
+                          "id TEXT, location TEXT, version TEXT, active INTEGER, " +
+                          "userDisabled INTEGER, installDate INTEGER");
+  db.createTable("targetApplication", "addon_internal_id INTEGER, " +
+                                      "id TEXT, minVersion TEXT, maxVersion TEXT");
+  let stmt = db.createStatement("INSERT INTO addon VALUES (NULL, :id, :location, " +
+                                ":version, :active, :userDisabled, :installDate)");
+
+  let internal_ids = {};
+
+  let a = ["addon1@tests.mozilla.org", "app-profile", "1.0", "0", "1", "0"];
+  stmt.params.id = a[0];
+  stmt.params.location = a[1];
+  stmt.params.version = a[2];
+  stmt.params.active = a[3];
+  stmt.params.userDisabled = a[4];
+  stmt.params.installDate = a[5];
+  stmt.execute();
+  internal_ids[a[0]] = db.lastInsertRowID;
+  stmt.finalize();
+
+  db.schemaVersion = 14;
+  Services.prefs.setIntPref("extensions.databaseSchema", 14);
+  db.close();
+
+  startupManager();
+  run_next_test();
+}
+
+add_test(function before_rebuild() {
+  AddonManager.getAddonByID("addon1@tests.mozilla.org",
+                            function check_before_rebuild (a1) {
+    // First check that it migrated OK once
+    // addon1 was disabled in the database
+    do_check_neq(a1, null);
+    do_check_true(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_false(a1.isActive);
+    do_check_false(a1.strictCompatibility);
+    do_check_false(a1.foreignInstall);
+
+    run_next_test();
+  });
+});
+
+// now shut down, remove the JSON database,
+// start up again, and make sure the data didn't migrate this time
+add_test(function rebuild_again() {
+  shutdownManager();
+  gExtensionsJSON.remove(true);
+  startupManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org",
+                            function check_after_rebuild(a1) {
+    // addon1 was rebuilt from extensions directory,
+    // so it appears enabled as a foreign install
+    do_check_neq(a1, null);
+    do_check_false(a1.userDisabled);
+    do_check_false(a1.appDisabled);
+    do_check_true(a1.isActive);
+    do_check_false(a1.strictCompatibility);
+    do_check_true(a1.foreignInstall);
+
+    run_next_test();
+  });
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_multiprocessCompatible.js b/toolkit/mozapps/webextensions/test/xpcshell/test_multiprocessCompatible.js
new file mode 100644
index 000000000..4cd103fa6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_multiprocessCompatible.js
@@ -0,0 +1,120 @@
+Components.utils.import("resource://testing-common/httpd.js");
+var gServer;
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+function build_test(multiprocessCompatible, bootstrap, updateMultiprocessCompatible) {
+  return function* () {
+    dump("Running test" +
+      " multiprocessCompatible: " + multiprocessCompatible +
+      " bootstrap: " + bootstrap +
+      " updateMultiprocessCompatible: " + updateMultiprocessCompatible +
+      "\n");
+
+    let addonData = {
+      id: "addon@tests.mozilla.org",
+      name: "Test Add-on",
+      version: "1.0",
+      multiprocessCompatible,
+      bootstrap,
+      updateURL: "http://localhost:" + gPort + "/updaterdf",
+      targetApplications: [{
+        id: "xpcshell@tests.mozilla.org",
+        minVersion: "1",
+        maxVersion: "1"
+      }]
+    }
+
+    gServer.registerPathHandler("/updaterdf", function(request, response) {
+      let updateData = {};
+      updateData[addonData.id] = [{
+        version: "1.0",
+        targetApplications: [{
+          id: "xpcshell@tests.mozilla.org",
+          minVersion: "1",
+          maxVersion: "1"
+        }]
+      }];
+
+      if (updateMultiprocessCompatible !== undefined) {
+        updateData[addonData.id][0].multiprocessCompatible = updateMultiprocessCompatible;
+      }
+
+      response.setStatusLine(request.httpVersion, 200, "OK");
+      response.write(createUpdateRDF(updateData));
+    });
+
+    let expectedMPC = updateMultiprocessCompatible === undefined ?
+                      multiprocessCompatible :
+                      updateMultiprocessCompatible;
+
+    let xpifile = createTempXPIFile(addonData);
+    let install = yield new Promise(resolve => AddonManager.getInstallForFile(xpifile, resolve));
+    do_check_eq(install.addon.multiprocessCompatible, !!multiprocessCompatible);
+    do_check_eq(install.addon.mpcOptedOut, multiprocessCompatible === false)
+    yield promiseCompleteAllInstalls([install]);
+
+    if (!bootstrap) {
+      yield promiseRestartManager();
+      do_check_true(isExtensionInAddonsList(profileDir, addonData.id));
+      do_check_eq(isItemMarkedMPIncompatible(addonData.id), !multiprocessCompatible);
+    }
+
+    let addon = yield promiseAddonByID(addonData.id);
+    do_check_neq(addon, null);
+    do_check_eq(addon.multiprocessCompatible, !!multiprocessCompatible);
+    do_check_eq(addon.mpcOptedOut, multiprocessCompatible === false);
+
+    yield promiseFindAddonUpdates(addon);
+
+    // Should have applied the compatibility change
+    do_check_eq(addon.multiprocessCompatible, !!expectedMPC);
+    yield promiseRestartManager();
+
+    addon = yield promiseAddonByID(addonData.id);
+    // Should have persisted the compatibility change
+    do_check_eq(addon.multiprocessCompatible, !!expectedMPC);
+    if (!bootstrap) {
+      do_check_true(isExtensionInAddonsList(profileDir, addonData.id));
+      do_check_eq(isItemMarkedMPIncompatible(addonData.id), !multiprocessCompatible);
+    }
+
+    addon.uninstall();
+    yield promiseRestartManager();
+
+    gServer.registerPathHandler("/updaterdf", null);
+  }
+}
+
+/* Builds a set of tests to run the same steps for every combination of:
+ *   The add-on being restartless
+ *   The initial add-on supporting multiprocess
+ *   The update saying the add-on should or should not support multiprocess (or not say anything at all)
+ */
+for (let bootstrap of [false, true]) {
+  for (let multiprocessCompatible of [undefined, false, true]) {
+    for (let updateMultiprocessCompatible of [undefined, false, true]) {
+      add_task(build_test(multiprocessCompatible, bootstrap, updateMultiprocessCompatible));
+    }
+  }
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+  startupManager();
+
+  // Create and configure the HTTP server.
+  gServer = new HttpServer();
+  gServer.registerDirectory("/data/", gTmpD);
+  gServer.start(-1);
+  gPort = gServer.identity.primaryPort;
+
+  run_next_test();
+}
+
+function end_test() {
+  gServer.stop(do_test_finished);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_no_addons.js b/toolkit/mozapps/webextensions/test/xpcshell/test_no_addons.js
new file mode 100644
index 000000000..a2ea5301e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_no_addons.js
@@ -0,0 +1,98 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test startup and restart when no add-ons are installed
+// bug 944006
+
+Components.utils.import("resource://gre/modules/Promise.jsm");
+
+// Load XPI Provider to get schema version ID
+var XPIScope = Components.utils.import("resource://gre/modules/addons/XPIProvider.jsm");
+const DB_SCHEMA = XPIScope.DB_SCHEMA;
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+function run_test() {
+  // Kick off the task-based tests...
+  run_next_test();
+}
+
+// Test for a preference to either exist with a specified value, or not exist at all
+function checkPending() {
+  try {
+    do_check_false(Services.prefs.getBoolPref("extensions.pendingOperations"));
+  }
+  catch (e) {
+    // OK
+  }
+}
+
+function checkString(aPref, aValue) {
+  try {
+    do_check_eq(Services.prefs.getCharPref(aPref), aValue)
+  }
+  catch (e) {
+    // OK
+  }
+}
+
+// Make sure all our extension state is empty/nonexistent
+function check_empty_state() {
+  do_check_false(gExtensionsJSON.exists());
+  do_check_false(gExtensionsINI.exists());
+
+  do_check_eq(Services.prefs.getIntPref("extensions.databaseSchema"), DB_SCHEMA);
+
+  checkString("extensions.bootstrappedAddons", "{}");
+  checkString("extensions.installCache", "[]");
+  checkPending();
+}
+
+// After first run with no add-ons, we expect:
+// no extensions.json is created
+// no extensions.ini
+// database schema version preference is set
+// bootstrap add-ons preference is not found
+// add-on directory state preference is an empty array
+// no pending operations
+add_task(function* first_run() {
+  startupManager();
+  check_empty_state();
+  yield true;
+});
+
+// Now do something that causes a DB load, and re-check
+function* trigger_db_load() {
+  let addonDefer = Promise.defer();
+  AddonManager.getAddonsByTypes(['extension'], addonDefer.resolve);
+  let addonList = yield addonDefer.promise;
+
+  do_check_eq(addonList.length, 0);
+  check_empty_state();
+
+  yield true;
+}
+add_task(trigger_db_load);
+
+// Now restart the manager and check again
+add_task(function* restart_and_recheck() {
+  restartManager();
+  check_empty_state();
+  yield true;
+});
+
+// and reload the DB again
+add_task(trigger_db_load);
+
+// When we start up with no DB and an old database schema, we should update the
+// schema number but not create a database
+add_task(function upgrade_schema_version() {
+  shutdownManager();
+  Services.prefs.setIntPref("extensions.databaseSchema", 1);
+
+  startupManager();
+  do_check_eq(Services.prefs.getIntPref("extensions.databaseSchema"), DB_SCHEMA);
+  check_empty_state();
+});
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_nodisable_hidden.js b/toolkit/mozapps/webextensions/test/xpcshell/test_nodisable_hidden.js
new file mode 100644
index 000000000..2d11e9c5b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_nodisable_hidden.js
@@ -0,0 +1,107 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This test verifies that hidden add-ons cannot be user disabled.
+
+// for normal add-ons
+const profileDir = FileUtils.getDir("ProfD", ["extensions"]);
+// for system add-ons
+const distroDir = FileUtils.getDir("ProfD", ["sysfeatures"], true);
+registerDirectory("XREAppFeat", distroDir);
+
+const NORMAL_ID = "normal@tests.mozilla.org";
+const SYSTEM_ID = "system@tests.mozilla.org";
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+
+// normal add-ons can be user disabled.
+add_task(function*() {
+
+  writeInstallRDFToDir({
+    id: NORMAL_ID,
+    version: "1.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test disabling hidden add-ons, non-hidden add-on case.",
+  }, profileDir, NORMAL_ID);
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(NORMAL_ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test disabling hidden add-ons, non-hidden add-on case.");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_false(addon.userDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  // normal add-ons can be disabled by the user.
+  addon.userDisabled = true;
+
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test disabling hidden add-ons, non-hidden add-on case.");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.userDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  addon.uninstall();
+
+  shutdownManager();
+});
+
+// system add-ons can never be user disabled.
+add_task(function*() {
+
+  writeInstallRDFToDir({
+    id: SYSTEM_ID,
+    version: "1.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test disabling hidden add-ons, hidden system add-on case.",
+  }, distroDir, SYSTEM_ID);
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(SYSTEM_ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test disabling hidden add-ons, hidden system add-on case.");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_false(addon.userDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  // system add-ons cannot be disabled by the user.
+  try {
+    addon.userDisabled = true;
+    do_throw("Expected addon.userDisabled on a hidden add-on to throw!");
+  } catch (e) {
+    do_check_eq(e.message, `Cannot disable hidden add-on ${SYSTEM_ID}`);
+  }
+
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test disabling hidden add-ons, hidden system add-on case.");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_false(addon.userDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  shutdownManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_onPropertyChanged_appDisabled.js b/toolkit/mozapps/webextensions/test/xpcshell/test_onPropertyChanged_appDisabled.js
new file mode 100644
index 000000000..f9b7da073
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_onPropertyChanged_appDisabled.js
@@ -0,0 +1,66 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  writeInstallRDFForExtension({
+    id: "addon1@tests.mozilla.org",
+    version: "1.0",
+    name: "Test 1",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "0.1",
+      maxVersion: "0.2"
+    }]
+  }, profileDir);
+
+  startupManager();
+
+  AddonManager.strictCompatibility = false;
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(aAddon) {
+    do_check_neq(aAddon, null);
+    aAddon.userDisabled = true;
+    do_execute_soon(run_test_1);
+  });
+}
+
+function run_test_1() {
+  restartManager();
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(aAddon) {
+    do_check_neq(aAddon, null);
+    do_check_true(aAddon.userDisabled);
+    do_check_false(aAddon.isActive);
+    do_check_false(aAddon.appDisabled);
+
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        ["onPropertyChanged", ["appDisabled"]]
+      ]
+    }, [], run_test_2);
+
+    AddonManager.strictCompatibility = true;
+  });
+}
+
+function run_test_2() {
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(aAddon) {
+    do_check_neq(aAddon, null);
+    do_check_true(aAddon.userDisabled);
+    do_check_false(aAddon.isActive);
+    do_check_true(aAddon.appDisabled);
+
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        ["onPropertyChanged", ["appDisabled"]]
+      ]
+    }, [], callback_soon(do_test_finished));
+
+    AddonManager.strictCompatibility = false;
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_overrideblocklist.js b/toolkit/mozapps/webextensions/test/xpcshell/test_overrideblocklist.js
new file mode 100644
index 000000000..c39e432bd
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_overrideblocklist.js
@@ -0,0 +1,200 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const KEY_PROFILEDIR                  = "ProfD";
+const KEY_APPDIR                      = "XCurProcD";
+const FILE_BLOCKLIST                  = "blocklist.xml";
+
+const PREF_BLOCKLIST_ENABLED          = "extensions.blocklist.enabled";
+
+const OLD = do_get_file("data/test_overrideblocklist/old.xml");
+const NEW = do_get_file("data/test_overrideblocklist/new.xml");
+const ANCIENT = do_get_file("data/test_overrideblocklist/ancient.xml");
+const OLD_TSTAMP = 1296046918000;
+const NEW_TSTAMP = 1396046918000;
+
+const gAppDir = FileUtils.getFile(KEY_APPDIR, []);
+
+var oldAddon = {
+  id: "old@tests.mozilla.org",
+  version: 1
+}
+var newAddon = {
+  id: "new@tests.mozilla.org",
+  version: 1
+}
+var ancientAddon = {
+  id: "ancient@tests.mozilla.org",
+  version: 1
+}
+var invalidAddon = {
+  id: "invalid@tests.mozilla.org",
+  version: 1
+}
+
+function incrementAppVersion() {
+  gAppInfo.version = "" + (parseInt(gAppInfo.version) + 1);
+}
+
+function clearBlocklists() {
+  let blocklist = FileUtils.getFile(KEY_APPDIR, [FILE_BLOCKLIST]);
+  if (blocklist.exists())
+    blocklist.remove(true);
+
+  blocklist = FileUtils.getFile(KEY_PROFILEDIR, [FILE_BLOCKLIST]);
+  if (blocklist.exists())
+    blocklist.remove(true);
+}
+
+function reloadBlocklist() {
+  Services.prefs.setBoolPref(PREF_BLOCKLIST_ENABLED, false);
+  Services.prefs.setBoolPref(PREF_BLOCKLIST_ENABLED, true);
+}
+
+function copyToApp(file) {
+  file.clone().copyTo(gAppDir, FILE_BLOCKLIST);
+}
+
+function copyToProfile(file, tstamp) {
+  file = file.clone();
+  file.copyTo(gProfD, FILE_BLOCKLIST);
+  file = gProfD.clone();
+  file.append(FILE_BLOCKLIST);
+  file.lastModifiedTime = tstamp;
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  let appBlocklist = FileUtils.getFile(KEY_APPDIR, [FILE_BLOCKLIST]);
+  if (appBlocklist.exists()) {
+    try {
+      appBlocklist.moveTo(gAppDir, "blocklist.old");
+    }
+    catch (e) {
+      todo(false, "Aborting test due to unmovable blocklist file: " + e);
+      return;
+    }
+    do_register_cleanup(function() {
+      clearBlocklists();
+      appBlocklist.moveTo(gAppDir, FILE_BLOCKLIST);
+    });
+  }
+
+  run_next_test();
+}
+
+// On first run whataver is in the app dir should get copied to the profile
+add_test(function test_copy() {
+  clearBlocklists();
+  copyToApp(OLD);
+
+  incrementAppVersion();
+  startupManager();
+
+  reloadBlocklist();
+  let blocklist = AM_Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(AM_Ci.nsIBlocklistService);
+  do_check_false(blocklist.isAddonBlocklisted(invalidAddon));
+  do_check_false(blocklist.isAddonBlocklisted(ancientAddon));
+  do_check_true(blocklist.isAddonBlocklisted(oldAddon));
+  do_check_false(blocklist.isAddonBlocklisted(newAddon));
+
+  shutdownManager();
+
+  run_next_test();
+});
+
+// An ancient blocklist should be ignored
+add_test(function test_ancient() {
+  clearBlocklists();
+  copyToApp(ANCIENT);
+  copyToProfile(OLD, OLD_TSTAMP);
+
+  incrementAppVersion();
+  startupManager();
+
+  reloadBlocklist();
+  let blocklist = AM_Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(AM_Ci.nsIBlocklistService);
+  do_check_false(blocklist.isAddonBlocklisted(invalidAddon));
+  do_check_false(blocklist.isAddonBlocklisted(ancientAddon));
+  do_check_true(blocklist.isAddonBlocklisted(oldAddon));
+  do_check_false(blocklist.isAddonBlocklisted(newAddon));
+
+  shutdownManager();
+
+  run_next_test();
+});
+
+// A new blocklist should override an old blocklist
+add_test(function test_override() {
+  clearBlocklists();
+  copyToApp(NEW);
+  copyToProfile(OLD, OLD_TSTAMP);
+
+  incrementAppVersion();
+  startupManager();
+
+  reloadBlocklist();
+  let blocklist = AM_Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(AM_Ci.nsIBlocklistService);
+  do_check_false(blocklist.isAddonBlocklisted(invalidAddon));
+  do_check_false(blocklist.isAddonBlocklisted(ancientAddon));
+  do_check_false(blocklist.isAddonBlocklisted(oldAddon));
+  do_check_true(blocklist.isAddonBlocklisted(newAddon));
+
+  shutdownManager();
+
+  run_next_test();
+});
+
+// An old blocklist shouldn't override a new blocklist
+add_test(function test_retain() {
+  clearBlocklists();
+  copyToApp(OLD);
+  copyToProfile(NEW, NEW_TSTAMP);
+
+  incrementAppVersion();
+  startupManager();
+
+  reloadBlocklist();
+  let blocklist = AM_Cc["@mozilla.org/extensions/blocklist;1"].
+                  getService(AM_Ci.nsIBlocklistService);
+  do_check_false(blocklist.isAddonBlocklisted(invalidAddon));
+  do_check_false(blocklist.isAddonBlocklisted(ancientAddon));
+  do_check_false(blocklist.isAddonBlocklisted(oldAddon));
+  do_check_true(blocklist.isAddonBlocklisted(newAddon));
+
+  shutdownManager();
+
+  run_next_test();
+});
+
+// A missing blocklist in the profile should still load an app-shipped blocklist
+add_test(function test_missing() {
+  clearBlocklists();
+  copyToApp(OLD);
+  copyToProfile(NEW, NEW_TSTAMP);
+
+  incrementAppVersion();
+  startupManager();
+  shutdownManager();
+
+  let blocklist = FileUtils.getFile(KEY_PROFILEDIR, [FILE_BLOCKLIST]);
+  blocklist.remove(true);
+  startupManager(false);
+
+  reloadBlocklist();
+  blocklist = AM_Cc["@mozilla.org/extensions/blocklist;1"].
+              getService(AM_Ci.nsIBlocklistService);
+  do_check_false(blocklist.isAddonBlocklisted(invalidAddon));
+  do_check_false(blocklist.isAddonBlocklisted(ancientAddon));
+  do_check_true(blocklist.isAddonBlocklisted(oldAddon));
+  do_check_false(blocklist.isAddonBlocklisted(newAddon));
+
+  shutdownManager();
+
+  run_next_test();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_pass_symbol.js b/toolkit/mozapps/webextensions/test/xpcshell/test_pass_symbol.js
new file mode 100644
index 000000000..657601e45
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_pass_symbol.js
@@ -0,0 +1,43 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const PASS_PREF = "symboltest.instanceid.pass";
+const FAIL_BOGUS_PREF = "symboltest.instanceid.fail_bogus";
+const FAIL_ID_PREF = "symboltest.instanceid.fail_bogus";
+const ADDON_ID = "test_symbol@tests.mozilla.org";
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+startupManager();
+
+BootstrapMonitor.init();
+
+// symbol is passed when add-on is installed
+add_task(function*() {
+  for (let pref of [PASS_PREF, FAIL_BOGUS_PREF, FAIL_ID_PREF])
+    Services.prefs.clearUserPref(pref);
+
+  yield promiseInstallAllFiles([do_get_addon("test_symbol")], true);
+
+  let addon = yield promiseAddonByID(ADDON_ID);
+
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Symbol");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+
+  // most of the test is in bootstrap.js in the addon because BootstrapMonitor
+  // currently requires the objects in `data` to be serializable, and we
+  // need a real reference to the symbol to test this.
+  do_execute_soon(function() {
+    // give the startup time to run
+    do_check_true(Services.prefs.getBoolPref(PASS_PREF));
+    do_check_true(Services.prefs.getBoolPref(FAIL_BOGUS_PREF));
+    do_check_true(Services.prefs.getBoolPref(FAIL_ID_PREF));
+  });
+
+  yield promiseRestartManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_permissions.js b/toolkit/mozapps/webextensions/test/xpcshell/test_permissions.js
new file mode 100644
index 000000000..48fef406f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_permissions.js
@@ -0,0 +1,86 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/NetUtil.jsm");
+
+// Checks that permissions set in preferences are correctly imported but can
+// be removed by the user.
+
+const XPI_MIMETYPE = "application/x-xpinstall";
+
+function newPrincipal(uri) {
+  return Services.scriptSecurityManager.createCodebasePrincipal(NetUtil.newURI(uri), {});
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  Services.prefs.setCharPref("xpinstall.whitelist.add", "https://test1.com,https://test2.com");
+  Services.prefs.setCharPref("xpinstall.whitelist.add.36", "https://test3.com,https://www.test4.com");
+  Services.prefs.setCharPref("xpinstall.whitelist.add.test5", "https://test5.com");
+
+  Services.perms.add(NetUtil.newURI("https://www.test9.com"), "install",
+                     AM_Ci.nsIPermissionManager.ALLOW_ACTION);
+
+  startupManager();
+
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("http://test1.com")));
+  do_check_true(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                              newPrincipal("https://test1.com")));
+  do_check_true(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                              newPrincipal("https://www.test2.com")));
+  do_check_true(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                              newPrincipal("https://test3.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://test4.com")));
+  do_check_true(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                              newPrincipal("https://www.test4.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("http://www.test5.com")));
+  do_check_true(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                              newPrincipal("https://www.test5.com")));
+
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("http://www.test6.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://www.test6.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://test7.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://www.test8.com")));
+
+  // This should remain unaffected
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("http://www.test9.com")));
+  do_check_true(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                              newPrincipal("https://www.test9.com")));
+
+  Services.perms.removeAll();
+
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://test1.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://www.test2.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://test3.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://www.test4.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://www.test5.com")));
+
+  // Upgrade the application and verify that the permissions are still not there
+  restartManager("2");
+
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://test1.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://www.test2.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://test3.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://www.test4.com")));
+  do_check_false(AddonManager.isInstallAllowed(XPI_MIMETYPE,
+                                               newPrincipal("https://www.test5.com")));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_permissions_prefs.js b/toolkit/mozapps/webextensions/test/xpcshell/test_permissions_prefs.js
new file mode 100644
index 000000000..576f04a65
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_permissions_prefs.js
@@ -0,0 +1,74 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that xpinstall.[whitelist|blacklist].add preferences are emptied when
+// converted into permissions.
+
+const PREF_XPI_WHITELIST_PERMISSIONS  = "xpinstall.whitelist.add";
+const PREF_XPI_BLACKLIST_PERMISSIONS  = "xpinstall.blacklist.add";
+
+function newPrincipal(uri) {
+  return Services.scriptSecurityManager.createCodebasePrincipal(NetUtil.newURI(uri), {});
+}
+
+function do_check_permission_prefs(preferences) {
+  // Check preferences were emptied
+  for (let pref of preferences) {
+    try {
+      do_check_eq(Services.prefs.getCharPref(pref), "");
+    }
+    catch (e) {
+      // Successfully emptied
+    }
+  }
+}
+
+function clear_imported_preferences_cache() {
+  let scope = Components.utils.import("resource://gre/modules/PermissionsUtils.jsm", {});
+  scope.gImportedPrefBranches.clear();
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  // Create own preferences to test
+  Services.prefs.setCharPref("xpinstall.whitelist.add.EMPTY", "");
+  Services.prefs.setCharPref("xpinstall.whitelist.add.TEST", "http://whitelist.example.com");
+  Services.prefs.setCharPref("xpinstall.blacklist.add.EMPTY", "");
+  Services.prefs.setCharPref("xpinstall.blacklist.add.TEST", "http://blacklist.example.com");
+
+  // Get list of preferences to check
+  var whitelistPreferences = Services.prefs.getChildList(PREF_XPI_WHITELIST_PERMISSIONS, {});
+  var blacklistPreferences = Services.prefs.getChildList(PREF_XPI_BLACKLIST_PERMISSIONS, {});
+  var preferences = whitelistPreferences.concat(blacklistPreferences);
+
+  startupManager();
+
+  // Permissions are imported lazily - act as thought we're checking an install,
+  // to trigger on-deman importing of the permissions.
+  AddonManager.isInstallAllowed("application/x-xpinstall", newPrincipal("http://example.com/file.xpi"));
+  do_check_permission_prefs(preferences);
+
+
+  // Import can also be triggerred by an observer notification by any other area
+  // of code, such as a permissions management UI.
+
+  // First, request to flush all permissions
+  clear_imported_preferences_cache();
+  Services.prefs.setCharPref("xpinstall.whitelist.add.TEST2", "https://whitelist2.example.com");
+  Services.obs.notifyObservers(null, "flush-pending-permissions", "install");
+  do_check_permission_prefs(preferences);
+
+  // Then, request to flush just install permissions
+  clear_imported_preferences_cache();
+  Services.prefs.setCharPref("xpinstall.whitelist.add.TEST3", "https://whitelist3.example.com");
+  Services.obs.notifyObservers(null, "flush-pending-permissions", "");
+  do_check_permission_prefs(preferences);
+
+  // And a request to flush some other permissions sholdn't flush install permissions
+  clear_imported_preferences_cache();
+  Services.prefs.setCharPref("xpinstall.whitelist.add.TEST4", "https://whitelist4.example.com");
+  Services.obs.notifyObservers(null, "flush-pending-permissions", "lolcats");
+  do_check_eq(Services.prefs.getCharPref("xpinstall.whitelist.add.TEST4"), "https://whitelist4.example.com");
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_pluginBlocklistCtp.js b/toolkit/mozapps/webextensions/test/xpcshell/test_pluginBlocklistCtp.js
new file mode 100644
index 000000000..563b7434c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_pluginBlocklistCtp.js
@@ -0,0 +1,182 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const nsIBLS = Components.interfaces.nsIBlocklistService;
+Components.utils.import("resource://testing-common/httpd.js");
+
+var gBlocklistService = null;
+var gNotifier = null;
+var gNextTest = null;
+var gPluginHost = null;
+
+var gServer = new HttpServer();
+gServer.start(-1);
+gPort = gServer.identity.primaryPort;
+mapFile("/data/test_pluginBlocklistCtp.xml", gServer);
+mapFile("/data/test_pluginBlocklistCtpUndo.xml", gServer);
+
+var PLUGINS = [{
+  // severity=0, vulnerabilitystatus=0 -> outdated
+  name: "test_plugin_0",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // severity=0, vulnerabilitystatus=1 -> update available
+  name: "test_plugin_1",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // severity=0, vulnerabilitystatus=2 -> no update
+  name: "test_plugin_2",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // no severity field -> severity=3 by default -> hardblock
+  name: "test_plugin_3",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // severity=1, vulnerabilitystatus=2 -> softblock
+  name: "test_plugin_4",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+},
+{
+  // not in the blocklist -> not blocked
+  name: "test_plugin_5",
+  version: "5",
+  disabled: false,
+  blocklisted: false
+}];
+
+function test_basic() {
+  var blocklist = Components.classes["@mozilla.org/extensions/blocklist;1"].getService(nsIBLS);
+
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[0], "1", "1.9") == nsIBLS.STATE_OUTDATED);
+
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[1], "1", "1.9") == nsIBLS.STATE_VULNERABLE_UPDATE_AVAILABLE);
+
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[2], "1", "1.9") == nsIBLS.STATE_VULNERABLE_NO_UPDATE);
+
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[3], "1", "1.9") == nsIBLS.STATE_BLOCKED);
+
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[4], "1", "1.9") == nsIBLS.STATE_SOFTBLOCKED);
+
+  do_check_true(blocklist.getPluginBlocklistState(PLUGINS[5], "1", "1.9") == nsIBLS.STATE_NOT_BLOCKED);
+
+  gNextTest = test_is_not_clicktoplay;
+  do_execute_soon(gNextTest);
+}
+
+function get_test_plugin() {
+  var pluginHost = Components.classes["@mozilla.org/plugin/host;1"].getService(Components.interfaces.nsIPluginHost);
+  for (var plugin of pluginHost.getPluginTags()) {
+    if (plugin.name == "Test Plug-in")
+      return plugin;
+  }
+  do_check_true(false);
+  return null;
+}
+
+// At this time, the blocklist does not have an entry for the test plugin,
+// so it shouldn't be click-to-play.
+function test_is_not_clicktoplay() {
+  var plugin = get_test_plugin();
+  var blocklistState = gBlocklistService.getPluginBlocklistState(plugin, "1", "1.9");
+  do_check_neq(blocklistState, Components.interfaces.nsIBlocklistService.STATE_VULNERABLE_UPDATE_AVAILABLE);
+  do_check_neq(blocklistState, Components.interfaces.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE);
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" + gPort + "/data/test_pluginBlocklistCtpUndo.xml");
+  gNextTest = test_is_clicktoplay;
+  gNotifier.notify(null);
+}
+
+// Here, we've updated the blocklist to have a block for the test plugin,
+// so it should be click-to-play.
+function test_is_clicktoplay() {
+  var plugin = get_test_plugin();
+  var blocklistState = gBlocklistService.getPluginBlocklistState(plugin, "1", "1.9");
+  do_check_eq(blocklistState, Components.interfaces.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE);
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" + gPort + "/data/test_pluginBlocklistCtp.xml");
+  gNextTest = test_is_not_clicktoplay2;
+  gNotifier.notify(null);
+}
+
+// But now we've removed that entry from the blocklist (really we've gone back
+// to the old one), so the plugin shouldn't be click-to-play any more.
+function test_is_not_clicktoplay2() {
+  var plugin = get_test_plugin();
+  var blocklistState = gBlocklistService.getPluginBlocklistState(plugin, "1", "1.9");
+  do_check_neq(blocklistState, Components.interfaces.nsIBlocklistService.STATE_VULNERABLE_UPDATE_AVAILABLE);
+  do_check_neq(blocklistState, Components.interfaces.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE);
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" + gPort + "/data/test_pluginBlocklistCtpUndo.xml");
+  gNextTest = test_disable_blocklist;
+  gNotifier.notify(null);
+}
+
+// Test that disabling the blocklist when a plugin is ctp-blocklisted will
+// result in the plugin not being click-to-play.
+function test_disable_blocklist() {
+  var plugin = get_test_plugin();
+  var blocklistState = gBlocklistService.getPluginBlocklistState(plugin, "1", "1.9");
+  do_check_eq(blocklistState, Components.interfaces.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE);
+
+  gNextTest = null;
+  Services.prefs.setBoolPref("extensions.blocklist.enabled", false);
+  blocklistState = gBlocklistService.getPluginBlocklistState(plugin, "1", "1.9");
+  do_check_neq(blocklistState, Components.interfaces.nsIBlocklistService.STATE_VULNERABLE_NO_UPDATE);
+  do_check_neq(blocklistState, Components.interfaces.nsIBlocklistService.STATE_VULNERABLE_UPDATE_AVAILABLE);
+
+  // it should still be possible to make a plugin click-to-play via the pref
+  // and setting that plugin's enabled state to click-to-play
+  Services.prefs.setBoolPref("plugins.click_to_play", true);
+  let previousEnabledState = plugin.enabledState;
+  plugin.enabledState = Components.interfaces.nsIPluginTag.STATE_CLICKTOPLAY;
+  do_check_eq(gPluginHost.getStateForType("application/x-test"), Components.interfaces.nsIPluginTag.STATE_CLICKTOPLAY);
+  // clean up plugin state
+  plugin.enabledState = previousEnabledState;
+
+  gServer.stop(do_test_finished);
+}
+
+// Observe "blocklist-updated" so we know when to advance to the next test
+function observer() {
+  if (gNextTest)
+    do_execute_soon(gNextTest);
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+
+  Services.prefs.setCharPref("extensions.blocklist.url", "http://localhost:" + gPort + "/data/test_pluginBlocklistCtp.xml");
+  Services.prefs.setBoolPref("plugin.load_flash_only", false);
+  startupManager();
+
+  gPluginHost = Components.classes["@mozilla.org/plugin/host;1"].getService(Components.interfaces.nsIPluginHost);
+  gBlocklistService = Components.classes["@mozilla.org/extensions/blocklist;1"].getService(Components.interfaces.nsIBlocklistService);
+  gNotifier = Components.classes["@mozilla.org/extensions/blocklist;1"].getService(Components.interfaces.nsITimerCallback);
+  Services.obs.addObserver(observer, "blocklist-updated", false);
+
+  do_register_cleanup(function() {
+    Services.prefs.clearUserPref("extensions.blocklist.url");
+    Services.prefs.clearUserPref("extensions.blocklist.enabled");
+    Services.prefs.clearUserPref("plugins.click_to_play");
+    Services.obs.removeObserver(observer, "blocklist-updated");
+  });
+
+  gNextTest = test_basic;
+  do_test_pending();
+  gNotifier.notify(null);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_pluginInfoURL.js b/toolkit/mozapps/webextensions/test/xpcshell/test_pluginInfoURL.js
new file mode 100644
index 000000000..e5acb28a4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_pluginInfoURL.js
@@ -0,0 +1,90 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+var Ci = Components.interfaces;
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+/**
+ * MockPlugin mimics the behaviour of a plugin.
+ */
+function MockPlugin(name, version, enabledState) {
+  this.name = name;
+  this.version = version;
+  this.enabledState = enabledState;
+}
+
+MockPlugin.prototype = {
+  get blocklisted() {
+    let bls = Services.blocklist;
+    return bls.getPluginBlocklistState(this) == bls.STATE_BLOCKED;
+  },
+
+  get disabled() {
+    return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+  }
+};
+
+// The mocked blocked plugin used to test the blocklist.
+const PLUGINS = [
+  new MockPlugin('test_with_infoURL', '5', Ci.nsIPluginTag.STATE_ENABLED),
+  new MockPlugin('test_with_altInfoURL', '5', Ci.nsIPluginTag.STATE_ENABLED),
+  new MockPlugin('test_no_infoURL', '5', Ci.nsIPluginTag.STATE_ENABLED),
+  new MockPlugin('test_newVersion', '1', Ci.nsIPluginTag.STATE_ENABLED),
+  new MockPlugin('test_newVersion', '3', Ci.nsIPluginTag.STATE_ENABLED)
+];
+
+/**
+ * The entry point of the unit tests, which is also responsible of
+ * copying the blocklist file to the profile folder.
+ */
+function run_test() {
+  copyBlocklistToProfile(do_get_file('data/pluginInfoURL_block.xml'));
+
+  createAppInfo('xpcshell@tests.mozilla.org', 'XPCShell', '3', '8');
+  startupManager();
+
+  run_next_test();
+}
+
+/**
+ * Test that the blocklist service correctly loads and returns the infoURL for
+ * a plugin that matches the first entry in the blocklist.
+ */
+add_task(function* test_infoURL() {
+  // The testInfoURL must match the value within the
+  // <infoURL> tag in pluginInfoURL_block.xml.
+  let testInfoURL = 'http://test.url.com/';
+
+  Assert.strictEqual(Services.blocklist.getPluginInfoURL(PLUGINS[0]),
+    testInfoURL, 'Should be the provided url when an infoURL tag is available');
+});
+
+/**
+ * Test that the blocklist service correctly loads and returns the infoURL for
+ * a plugin that partially matches an earlier entry in the blocklist.
+ */
+add_task(function* test_altInfoURL() {
+  let altTestInfoURL = 'http://alt.test.url.com/';
+
+  Assert.strictEqual(Services.blocklist.getPluginInfoURL(PLUGINS[1]),
+    altTestInfoURL, 'Should be the alternative infoURL');
+});
+
+/**
+ * Test that the blocklist service correctly returns null
+ * if the infoURL tag is missing in the blocklist.xml file.
+ */
+add_task(function* test_infoURL_missing() {
+  Assert.strictEqual(Services.blocklist.getPluginInfoURL(PLUGINS[2]), null,
+    'Should be null when no infoURL tag is available.');
+});
+
+add_task(function* test_intoURL_newVersion() {
+  let testInfoURL = 'http://test.url2.com/';
+  Assert.strictEqual(Services.blocklist.getPluginInfoURL(PLUGINS[3]),
+    testInfoURL, 'Old plugin should match');
+  Assert.strictEqual(Services.blocklist.getPluginInfoURL(PLUGINS[4]),
+    null, 'New plugin should not match');
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_pluginchange.js b/toolkit/mozapps/webextensions/test/xpcshell/test_pluginchange.js
new file mode 100644
index 000000000..05e17b35e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_pluginchange.js
@@ -0,0 +1,283 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const LIST_UPDATED_TOPIC     = "plugins-list-updated";
+
+// We need to use the same algorithm for generating IDs for plugins
+var { getIDHashForString } = Components.utils.import("resource://gre/modules/addons/PluginProvider.jsm");
+var { MockRegistrar } = Components.utils.import("resource://testing-common/MockRegistrar.jsm");
+
+function PluginTag(name, description) {
+  this.name = name;
+  this.description = description;
+}
+
+PluginTag.prototype = {
+  name: null,
+  description: null,
+  version: "1.0",
+  filename: null,
+  fullpath: null,
+  disabled: false,
+  blocklisted: false,
+  clicktoplay: false,
+
+  mimeTypes: [],
+
+  getMimeTypes: function(count) {
+    count.value = this.mimeTypes.length;
+    return this.mimeTypes;
+  }
+};
+
+const PLUGINS = [
+  // A standalone plugin
+  new PluginTag("Java", "A mock Java plugin"),
+
+  // A plugin made up of two plugin files
+  new PluginTag("Flash", "A mock Flash plugin"),
+  new PluginTag("Flash", "A mock Flash plugin")
+];
+
+const gPluginHost = {
+  // nsIPluginHost
+  getPluginTags: function(count) {
+    count.value = PLUGINS.length;
+    return PLUGINS;
+  },
+
+  QueryInterface: XPCOMUtils.generateQI([AM_Ci.nsIPluginHost])
+};
+
+MockRegistrar.register("@mozilla.org/plugin/host;1", gPluginHost);
+
+// This verifies that when the list of plugins changes the add-ons manager
+// correctly updates
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  Services.prefs.setBoolPref("media.gmp-provider.enabled", false);
+
+  startupManager();
+  AddonManager.addAddonListener(AddonListener);
+  AddonManager.addInstallListener(InstallListener);
+
+  run_test_1();
+}
+
+function end_test() {
+  do_execute_soon(do_test_finished);
+}
+
+function sortAddons(addons) {
+  addons.sort(function(a, b) {
+    return a.name.localeCompare(b.name);
+  });
+}
+
+// Basic check that the mock object works
+function run_test_1() {
+  AddonManager.getAddonsByTypes(["plugin"], function(addons) {
+    sortAddons(addons);
+
+    do_check_eq(addons.length, 2);
+
+    do_check_eq(addons[0].name, "Flash");
+    do_check_false(addons[0].userDisabled);
+    do_check_eq(addons[1].name, "Java");
+    do_check_false(addons[1].userDisabled);
+
+    run_test_2();
+  });
+}
+
+// No change to the list should not trigger any events or changes in the API
+function run_test_2() {
+  // Reorder the list a bit
+  let tag = PLUGINS[0];
+  PLUGINS[0] = PLUGINS[2];
+  PLUGINS[2] = PLUGINS[1];
+  PLUGINS[1] = tag;
+
+  Services.obs.notifyObservers(null, LIST_UPDATED_TOPIC, null);
+
+  AddonManager.getAddonsByTypes(["plugin"], function(addons) {
+    sortAddons(addons);
+
+    do_check_eq(addons.length, 2);
+
+    do_check_eq(addons[0].name, "Flash");
+    do_check_false(addons[0].userDisabled);
+    do_check_eq(addons[1].name, "Java");
+    do_check_false(addons[1].userDisabled);
+
+    run_test_3();
+  });
+}
+
+// Tests that a newly detected plugin shows up in the API and sends out events
+function run_test_3() {
+  let tag = new PluginTag("Quicktime", "A mock Quicktime plugin");
+  PLUGINS.push(tag);
+  let id = getIDHashForString(tag.name + tag.description);
+
+  let test_params = {};
+  test_params[id] = [
+    ["onInstalling", false],
+    "onInstalled"
+  ];
+
+  prepare_test(test_params, [
+    "onExternalInstall"
+  ]);
+
+  Services.obs.notifyObservers(null, LIST_UPDATED_TOPIC, null);
+
+  ensure_test_completed();
+
+  AddonManager.getAddonsByTypes(["plugin"], function(addons) {
+    sortAddons(addons);
+
+    do_check_eq(addons.length, 3);
+
+    do_check_eq(addons[0].name, "Flash");
+    do_check_false(addons[0].userDisabled);
+    do_check_eq(addons[1].name, "Java");
+    do_check_false(addons[1].userDisabled);
+    do_check_eq(addons[2].name, "Quicktime");
+    do_check_false(addons[2].userDisabled);
+
+    run_test_4();
+  });
+}
+
+// Tests that a removed plugin disappears from in the API and sends out events
+function run_test_4() {
+  let tag = PLUGINS.splice(1, 1)[0];
+  let id = getIDHashForString(tag.name + tag.description);
+
+  let test_params = {};
+  test_params[id] = [
+    ["onUninstalling", false],
+    "onUninstalled"
+  ];
+
+  prepare_test(test_params);
+
+  Services.obs.notifyObservers(null, LIST_UPDATED_TOPIC, null);
+
+  ensure_test_completed();
+
+  AddonManager.getAddonsByTypes(["plugin"], function(addons) {
+    sortAddons(addons);
+
+    do_check_eq(addons.length, 2);
+
+    do_check_eq(addons[0].name, "Flash");
+    do_check_false(addons[0].userDisabled);
+    do_check_eq(addons[1].name, "Quicktime");
+    do_check_false(addons[1].userDisabled);
+
+    run_test_5();
+  });
+}
+
+// Removing part of the flash plugin should have no effect
+function run_test_5() {
+  PLUGINS.splice(0, 1);
+
+  Services.obs.notifyObservers(null, LIST_UPDATED_TOPIC, null);
+
+  ensure_test_completed();
+
+  AddonManager.getAddonsByTypes(["plugin"], function(addons) {
+    sortAddons(addons);
+
+    do_check_eq(addons.length, 2);
+
+    do_check_eq(addons[0].name, "Flash");
+    do_check_false(addons[0].userDisabled);
+    do_check_eq(addons[1].name, "Quicktime");
+    do_check_false(addons[1].userDisabled);
+
+    run_test_6();
+  });
+}
+
+// Replacing flash should be detected
+function run_test_6() {
+  let oldTag = PLUGINS.splice(0, 1)[0];
+  let newTag = new PluginTag("Flash 2", "A new crash-free Flash!");
+  newTag.disabled = true;
+  PLUGINS.push(newTag);
+
+  let test_params = {};
+  test_params[getIDHashForString(oldTag.name + oldTag.description)] = [
+    ["onUninstalling", false],
+    "onUninstalled"
+  ];
+  test_params[getIDHashForString(newTag.name + newTag.description)] = [
+    ["onInstalling", false],
+    "onInstalled"
+  ];
+
+  prepare_test(test_params, [
+    "onExternalInstall"
+  ]);
+
+  Services.obs.notifyObservers(null, LIST_UPDATED_TOPIC, null);
+
+  ensure_test_completed();
+
+  AddonManager.getAddonsByTypes(["plugin"], function(addons) {
+    sortAddons(addons);
+
+    do_check_eq(addons.length, 2);
+
+    do_check_eq(addons[0].name, "Flash 2");
+    do_check_true(addons[0].userDisabled);
+    do_check_eq(addons[1].name, "Quicktime");
+    do_check_false(addons[1].userDisabled);
+
+    run_test_7();
+  });
+}
+
+// If new tags are detected and the disabled state changes then we should send
+// out appropriate notifications
+function run_test_7() {
+  PLUGINS[0] = new PluginTag("Quicktime", "A mock Quicktime plugin");
+  PLUGINS[0].disabled = true;
+  PLUGINS[1] = new PluginTag("Flash 2", "A new crash-free Flash!");
+
+  let test_params = {};
+  test_params[getIDHashForString(PLUGINS[0].name + PLUGINS[0].description)] = [
+    ["onDisabling", false],
+    "onDisabled"
+  ];
+  test_params[getIDHashForString(PLUGINS[1].name + PLUGINS[1].description)] = [
+    ["onEnabling", false],
+    "onEnabled"
+  ];
+
+  prepare_test(test_params);
+
+  Services.obs.notifyObservers(null, LIST_UPDATED_TOPIC, null);
+
+  ensure_test_completed();
+
+  AddonManager.getAddonsByTypes(["plugin"], function(addons) {
+    sortAddons(addons);
+
+    do_check_eq(addons.length, 2);
+
+    do_check_eq(addons[0].name, "Flash 2");
+    do_check_false(addons[0].userDisabled);
+    do_check_eq(addons[1].name, "Quicktime");
+    do_check_true(addons[1].userDisabled);
+
+    end_test();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_plugins.js b/toolkit/mozapps/webextensions/test/xpcshell/test_plugins.js
new file mode 100644
index 000000000..3f0ac7ebe
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_plugins.js
@@ -0,0 +1,210 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var TEST_PLUGIN_DESCRIPTION = "Flash plug-in for testing purposes.";
+
+// This verifies that plugins exist and can be enabled and disabled.
+var gID = null;
+
+function setTestPluginState(state) {
+  let tags = AM_Cc["@mozilla.org/plugin/host;1"].getService(AM_Ci.nsIPluginHost)
+    .getPluginTags();
+  for (let tag of tags) {
+    do_print("Checking tag: " + tag.description);
+    if (tag.description == TEST_PLUGIN_DESCRIPTION) {
+      tag.enabledState = state;
+      return;
+    }
+  }
+  throw Error("No plugin tag found for the test plugin");
+}
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  Services.prefs.setBoolPref("plugins.click_to_play", true);
+  Services.prefs.setBoolPref("plugin.load_flash_only", false);
+
+  setTestPluginState(AM_Ci.nsIPluginTag.STATE_CLICKTOPLAY);
+
+  startupManager();
+  AddonManager.addAddonListener(AddonListener);
+  AddonManager.addInstallListener(InstallListener);
+
+  run_test_1();
+}
+
+// Finds the test plugin library
+function get_test_plugin() {
+  var pluginEnum = Services.dirsvc.get("APluginsDL", AM_Ci.nsISimpleEnumerator);
+  while (pluginEnum.hasMoreElements()) {
+    let dir = pluginEnum.getNext().QueryInterface(AM_Ci.nsILocalFile);
+    let plugin = dir.clone();
+    // OSX plugin
+    plugin.append("npswftest.plugin");
+    if (plugin.exists()) {
+      plugin.normalize();
+      return plugin;
+    }
+    plugin = dir.clone();
+    // *nix plugin
+    plugin.append("libnpswftest.so");
+    if (plugin.exists()) {
+      plugin.normalize();
+      return plugin;
+    }
+    // Windows plugin
+    plugin = dir.clone();
+    plugin.append("npswftest.dll");
+    if (plugin.exists()) {
+      plugin.normalize();
+      return plugin;
+    }
+  }
+  return null;
+}
+
+function getFileSize(aFile) {
+  if (!aFile.isDirectory())
+    return aFile.fileSize;
+
+  let size = 0;
+  let entries = aFile.directoryEntries.QueryInterface(AM_Ci.nsIDirectoryEnumerator);
+  let entry;
+  while (entry = entries.nextFile)
+    size += getFileSize(entry);
+  entries.close();
+  return size;
+}
+
+function getPluginLastModifiedTime(aPluginFile) {
+  // On OS X we use the bundle contents last modified time as using
+  // the package directories modified date may be outdated.
+  // See bug 313700.
+  try {
+    let localFileMac = aPluginFile.QueryInterface(AM_Ci.nsILocalFileMac);
+    if (localFileMac) {
+      return localFileMac.bundleContentsLastModifiedTime;
+    }
+  } catch (e) {
+  }
+
+  return aPluginFile.lastModifiedTime;
+}
+
+// Tests that the test plugin exists
+function run_test_1() {
+  var testPlugin = get_test_plugin();
+  do_check_neq(testPlugin, null);
+
+  AddonManager.getAddonsByTypes(["plugin"], function(addons) {
+    do_check_true(addons.length > 0);
+
+    addons.forEach(function(p) {
+      if (p.description == TEST_PLUGIN_DESCRIPTION)
+        gID = p.id;
+    });
+
+    do_check_neq(gID, null);
+
+    AddonManager.getAddonByID(gID, function(p) {
+      do_check_neq(p, null);
+      do_check_eq(p.name, "Shockwave Flash");
+      do_check_eq(p.description, TEST_PLUGIN_DESCRIPTION);
+      do_check_eq(p.creator, null);
+      do_check_eq(p.version, "1.0.0.0");
+      do_check_eq(p.type, "plugin");
+      do_check_eq(p.userDisabled, "askToActivate");
+      do_check_false(p.appDisabled);
+      do_check_true(p.isActive);
+      do_check_true(p.isCompatible);
+      do_check_true(p.providesUpdatesSecurely);
+      do_check_eq(p.blocklistState, 0);
+      do_check_eq(p.permissions, AddonManager.PERM_CAN_DISABLE | AddonManager.PERM_CAN_ENABLE);
+      do_check_eq(p.pendingOperations, 0);
+      do_check_true(p.size > 0);
+      do_check_eq(p.size, getFileSize(testPlugin));
+      do_check_true(p.updateDate > 0);
+      do_check_true("isCompatibleWith" in p);
+      do_check_true("findUpdates" in p);
+
+      let lastModifiedTime = getPluginLastModifiedTime(testPlugin);
+      do_check_eq(p.updateDate.getTime(), lastModifiedTime);
+      do_check_eq(p.installDate.getTime(), lastModifiedTime);
+
+      run_test_2(p);
+    });
+  });
+}
+
+// Tests that disabling a plugin works
+function run_test_2(p) {
+  let test = {};
+  test[gID] = [
+    ["onDisabling", false],
+    "onDisabled",
+    ["onPropertyChanged", ["userDisabled"]]
+  ];
+  prepare_test(test);
+
+  p.userDisabled = true;
+
+  ensure_test_completed();
+
+  do_check_true(p.userDisabled);
+  do_check_false(p.appDisabled);
+  do_check_false(p.isActive);
+
+  AddonManager.getAddonByID(gID, function(p2) {
+    do_check_neq(p2, null);
+    do_check_true(p2.userDisabled);
+    do_check_false(p2.appDisabled);
+    do_check_false(p2.isActive);
+    do_check_eq(p2.name, "Shockwave Flash");
+
+    run_test_3(p2);
+  });
+}
+
+// Tests that enabling a plugin works
+function run_test_3(p) {
+  let test = {};
+  test[gID] = [
+    ["onEnabling", false],
+    "onEnabled"
+  ];
+  prepare_test(test);
+
+  p.userDisabled = false;
+
+  ensure_test_completed();
+
+  do_check_false(p.userDisabled);
+  do_check_false(p.appDisabled);
+  do_check_true(p.isActive);
+
+  AddonManager.getAddonByID(gID, function(p2) {
+    do_check_neq(p2, null);
+    do_check_false(p2.userDisabled);
+    do_check_false(p2.appDisabled);
+    do_check_true(p2.isActive);
+    do_check_eq(p2.name, "Shockwave Flash");
+
+    do_execute_soon(run_test_4);
+  });
+}
+
+// Verify that after a restart the test plugin has the same ID
+function run_test_4() {
+  restartManager();
+
+  AddonManager.getAddonByID(gID, function(p) {
+    do_check_neq(p, null);
+    do_check_eq(p.name, "Shockwave Flash");
+
+    Services.prefs.clearUserPref("plugins.click_to_play");
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_pref_properties.js b/toolkit/mozapps/webextensions/test/xpcshell/test_pref_properties.js
new file mode 100644
index 000000000..c6a10e7c1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_pref_properties.js
@@ -0,0 +1,221 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests the preference-related properties of AddonManager
+// eg: AddonManager.checkCompatibility, AddonManager.updateEnabled, etc
+
+var gManagerEventsListener = {
+  seenEvents: [],
+  init: function() {
+    let events = ["onCompatibilityModeChanged", "onCheckUpdateSecurityChanged",
+                  "onUpdateModeChanged"];
+    events.forEach(function(aEvent) {
+      this[aEvent] = function() {
+        do_print("Saw event " + aEvent);
+        this.seenEvents.push(aEvent);
+      }
+    }, this);
+    AddonManager.addManagerListener(this);
+    // Try to add twice, to test that the second time silently fails.
+    AddonManager.addManagerListener(this);
+  },
+  shutdown: function() {
+    AddonManager.removeManagerListener(this);
+  },
+  expect: function(aEvents) {
+    this.expectedEvents = aEvents;
+  },
+  checkExpected: function() {
+    do_print("Checking expected events...");
+    while (this.expectedEvents.length > 0) {
+      let event = this.expectedEvents.pop();
+      do_print("Looking for expected event " + event);
+      let matchingEvents = this.seenEvents.filter(function(aSeenEvent) {
+        return aSeenEvent == event;
+      });
+      do_check_eq(matchingEvents.length, 1);
+    }
+    this.seenEvents = [];
+  }
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  Services.prefs.setBoolPref("extensions.update.enabled", true);
+  Services.prefs.setBoolPref("extensions.update.autoUpdateDefault", true);
+  Services.prefs.setBoolPref("extensions.strictCompatibility", true);
+  Services.prefs.setBoolPref("extensions.checkUpdatesecurity", true);
+
+  startupManager();
+  gManagerEventsListener.init();
+
+
+  // AddonManager.updateEnabled
+  gManagerEventsListener.expect(["onUpdateModeChanged"]);
+  AddonManager.updateEnabled = false;
+  gManagerEventsListener.checkExpected();
+  do_check_false(AddonManager.updateEnabled);
+  do_check_false(Services.prefs.getBoolPref("extensions.update.enabled"));
+
+  gManagerEventsListener.expect([]);
+  AddonManager.updateEnabled = false;
+  gManagerEventsListener.checkExpected();
+  do_check_false(AddonManager.updateEnabled);
+  do_check_false(Services.prefs.getBoolPref("extensions.update.enabled"));
+
+  gManagerEventsListener.expect(["onUpdateModeChanged"]);
+  AddonManager.updateEnabled = true;
+  gManagerEventsListener.checkExpected();
+  do_check_true(AddonManager.updateEnabled);
+  do_check_true(Services.prefs.getBoolPref("extensions.update.enabled"));
+
+  gManagerEventsListener.expect([]);
+  AddonManager.updateEnabled = true;
+  gManagerEventsListener.checkExpected();
+  do_check_true(AddonManager.updateEnabled);
+  do_check_true(Services.prefs.getBoolPref("extensions.update.enabled"));
+
+  // AddonManager.autoUpdateDefault
+  gManagerEventsListener.expect(["onUpdateModeChanged"]);
+  AddonManager.autoUpdateDefault = false;
+  gManagerEventsListener.checkExpected();
+  do_check_false(AddonManager.autoUpdateDefault);
+  do_check_false(Services.prefs.getBoolPref("extensions.update.autoUpdateDefault"));
+
+  gManagerEventsListener.expect([]);
+  AddonManager.autoUpdateDefault = false;
+  gManagerEventsListener.checkExpected();
+  do_check_false(AddonManager.autoUpdateDefault);
+  do_check_false(Services.prefs.getBoolPref("extensions.update.autoUpdateDefault"));
+
+  gManagerEventsListener.expect(["onUpdateModeChanged"]);
+  AddonManager.autoUpdateDefault = true;
+  gManagerEventsListener.checkExpected();
+  do_check_true(AddonManager.autoUpdateDefault);
+  do_check_true(Services.prefs.getBoolPref("extensions.update.autoUpdateDefault"));
+
+  gManagerEventsListener.expect([]);
+  AddonManager.autoUpdateDefault = true;
+  gManagerEventsListener.checkExpected();
+  do_check_true(AddonManager.autoUpdateDefault);
+  do_check_true(Services.prefs.getBoolPref("extensions.update.autoUpdateDefault"));
+
+  // AddonManager.strictCompatibility
+  gManagerEventsListener.expect(["onCompatibilityModeChanged"]);
+  AddonManager.strictCompatibility = false;
+  gManagerEventsListener.checkExpected();
+  do_check_false(AddonManager.strictCompatibility);
+  do_check_false(Services.prefs.getBoolPref("extensions.strictCompatibility"));
+
+  gManagerEventsListener.expect([]);
+  AddonManager.strictCompatibility = false;
+  gManagerEventsListener.checkExpected();
+  do_check_false(AddonManager.strictCompatibility);
+  do_check_false(Services.prefs.getBoolPref("extensions.strictCompatibility"));
+
+  gManagerEventsListener.expect(["onCompatibilityModeChanged"]);
+  AddonManager.strictCompatibility = true;
+  gManagerEventsListener.checkExpected();
+  do_check_true(AddonManager.strictCompatibility);
+  do_check_true(Services.prefs.getBoolPref("extensions.strictCompatibility"));
+
+  gManagerEventsListener.expect([]);
+  AddonManager.strictCompatibility = true;
+  gManagerEventsListener.checkExpected();
+  do_check_true(AddonManager.strictCompatibility);
+  do_check_true(Services.prefs.getBoolPref("extensions.strictCompatibility"));
+
+
+  // AddonManager.checkCompatibility
+  if (isNightlyChannel()) {
+    var version = "nightly";
+  } else {
+    version = Services.appinfo.version.replace(/^([^\.]+\.[0-9]+[a-z]*).*/gi, "$1");
+  }
+  const COMPATIBILITY_PREF = "extensions.checkCompatibility." + version;
+
+  gManagerEventsListener.expect(["onCompatibilityModeChanged"]);
+  AddonManager.checkCompatibility = false;
+  gManagerEventsListener.checkExpected();
+  do_check_false(AddonManager.checkCompatibility);
+  do_check_false(Services.prefs.getBoolPref(COMPATIBILITY_PREF));
+
+  gManagerEventsListener.expect([]);
+  AddonManager.checkCompatibility = false;
+  gManagerEventsListener.checkExpected();
+  do_check_false(AddonManager.checkCompatibility);
+  do_check_false(Services.prefs.getBoolPref(COMPATIBILITY_PREF));
+
+  gManagerEventsListener.expect(["onCompatibilityModeChanged"]);
+  AddonManager.checkCompatibility = true;
+  gManagerEventsListener.checkExpected();
+  do_check_true(AddonManager.checkCompatibility);
+  do_check_false(Services.prefs.prefHasUserValue(COMPATIBILITY_PREF));
+
+  gManagerEventsListener.expect([]);
+  AddonManager.checkCompatibility = true;
+  gManagerEventsListener.checkExpected();
+  do_check_true(AddonManager.checkCompatibility);
+  do_check_false(Services.prefs.prefHasUserValue(COMPATIBILITY_PREF));
+
+
+  // AddonManager.checkUpdateSecurity
+  gManagerEventsListener.expect(["onCheckUpdateSecurityChanged"]);
+  AddonManager.checkUpdateSecurity = false;
+  gManagerEventsListener.checkExpected();
+  do_check_false(AddonManager.checkUpdateSecurity);
+  if (AddonManager.checkUpdateSecurityDefault)
+    do_check_false(Services.prefs.getBoolPref("extensions.checkUpdateSecurity"));
+  else
+    do_check_false(Services.prefs.prefHasUserValue("extensions.checkUpdateSecurity"));
+
+  gManagerEventsListener.expect([]);
+  AddonManager.checkUpdateSecurity = false;
+  gManagerEventsListener.checkExpected();
+  do_check_false(AddonManager.checkUpdateSecurity);
+  if (AddonManager.checkUpdateSecurityDefault)
+    do_check_false(Services.prefs.getBoolPref("extensions.checkUpdateSecurity"));
+  else
+    do_check_false(Services.prefs.prefHasUserValue("extensions.checkUpdateSecurity"));
+
+  gManagerEventsListener.expect(["onCheckUpdateSecurityChanged"]);
+  AddonManager.checkUpdateSecurity = true;
+  gManagerEventsListener.checkExpected();
+  do_check_true(AddonManager.checkUpdateSecurity);
+  if (!AddonManager.checkUpdateSecurityDefault)
+    do_check_true(Services.prefs.getBoolPref("extensions.checkUpdateSecurity"));
+  else
+    do_check_false(Services.prefs.prefHasUserValue("extensions.checkUpdateSecurity"));
+
+  gManagerEventsListener.expect([]);
+  AddonManager.checkUpdateSecurity = true;
+  gManagerEventsListener.checkExpected();
+  do_check_true(AddonManager.checkUpdateSecurity);
+  if (!AddonManager.checkUpdateSecurityDefault)
+    do_check_true(Services.prefs.getBoolPref("extensions.checkUpdateSecurity"));
+  else
+    do_check_false(Services.prefs.prefHasUserValue("extensions.checkUpdateSecurity"));
+
+  gManagerEventsListener.shutdown();
+
+  // AddonManager.hotfixID
+  let hotfixID = "hotfix@tests.mozilla.org";
+  Services.prefs.setCharPref("extensions.hotfix.id", hotfixID);
+  do_check_eq(AddonManager.hotfixID, hotfixID);
+  // Change the pref and make sure the property is updated
+  hotfixID = "hotfix2@tests.mozilla.org";
+  Services.prefs.setCharPref("extensions.hotfix.id", hotfixID);
+  do_check_eq(AddonManager.hotfixID, hotfixID);
+  // Test an invalid pref value
+  hotfixID = 99;
+  Services.prefs.deleteBranch("extensions.hotfix.id");
+  Services.prefs.setIntPref("extensions.hotfix.id", hotfixID);
+  do_check_eq(AddonManager.hotfixID, null);
+  Services.prefs.clearUserPref("extensions.hotfix.id");
+
+  // After removing the listener, ensure we get no further events.
+  gManagerEventsListener.expect([]);
+  AddonManager.updateEnabled = false;
+  gManagerEventsListener.checkExpected();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_provider_markSafe.js b/toolkit/mozapps/webextensions/test/xpcshell/test_provider_markSafe.js
new file mode 100644
index 000000000..228eb7d34
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_provider_markSafe.js
@@ -0,0 +1,49 @@
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+var startupOrder = [];
+
+function mockAddonProvider(name) {
+  let mockProvider = {
+    markSafe: false,
+    apiAccessed: false,
+
+    startup() {
+      if (this.markSafe)
+        AddonManagerPrivate.markProviderSafe(this);
+
+      let uri = Services.io.newURI("beard://long", null, null);
+      AddonManager.isInstallEnabled("made-up-mimetype");
+    },
+    supportsMimetype(mimetype) {
+      this.apiAccessed = true;
+      return false;
+    },
+
+    get name() {
+      return name;
+    },
+  };
+
+  return mockProvider;
+}
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* testMarkSafe() {
+  do_print("Starting with provider normally");
+  let provider = mockAddonProvider("Mock1");
+  AddonManagerPrivate.registerProvider(provider);
+  startupManager();
+  ok(!provider.apiAccessed, "Provider API should not have been accessed");
+  AddonManagerPrivate.unregisterProvider(provider);
+  yield promiseShutdownManager();
+
+  do_print("Starting with provider that marks itself safe");
+  provider.apiAccessed = false;
+  provider.markSafe = true;
+  AddonManagerPrivate.registerProvider(provider);
+  startupManager();
+  ok(provider.apiAccessed, "Provider API should have been accessed");
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_provider_shutdown.js b/toolkit/mozapps/webextensions/test/xpcshell/test_provider_shutdown.js
new file mode 100644
index 000000000..d210eb81d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_provider_shutdown.js
@@ -0,0 +1,99 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Verify that we report shutdown status for Addon Manager providers
+// and AddonRepository correctly.
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+// Make a mock AddonRepository that just lets us hang shutdown.
+// Needs two promises - one to let us know that AM has called shutdown,
+// and one for us to let AM know that shutdown is done.
+function mockAddonProvider(aName) {
+  let mockProvider = {
+    donePromise: null,
+    doneResolve: null,
+    doneReject: null,
+    shutdownPromise: null,
+    shutdownResolve: null,
+
+    get name() {
+      return aName;
+    },
+
+    shutdown() {
+      this.shutdownResolve();
+      return this.donePromise;
+    },
+  };
+  mockProvider.donePromise = new Promise((resolve, reject) => {
+    mockProvider.doneResolve = resolve;
+    mockProvider.doneReject = reject;
+  });
+  mockProvider.shutdownPromise = new Promise((resolve, reject) => {
+    mockProvider.shutdownResolve = resolve;
+  });
+  return mockProvider;
+}
+
+function run_test() {
+  run_next_test();
+}
+
+// Helper to find a particular shutdown blocker's status in the JSON blob
+function findInStatus(aStatus, aName) {
+  for (let {name, state} of aStatus.state) {
+    if (name == aName) {
+      return state;
+    }
+  }
+  return null;
+}
+
+/*
+ * Make sure we report correctly when an add-on provider or AddonRepository block shutdown
+ */
+add_task(function* blockRepoShutdown() {
+  // Reach into the AddonManager scope and inject our mock AddonRepository
+  let realAddonRepo = AMscope.AddonRepository;
+  // the mock provider behaves enough like AddonRepository for the purpose of this test
+  let mockRepo = mockAddonProvider("Mock repo");
+  AMscope.AddonRepository = mockRepo;
+
+  let mockProvider = mockAddonProvider("Mock provider");
+
+  startupManager();
+  AddonManagerPrivate.registerProvider(mockProvider);
+
+  // Start shutting the manager down
+  let managerDown = promiseShutdownManager();
+
+  // Wait for manager to call provider shutdown.
+  yield mockProvider.shutdownPromise;
+  // check AsyncShutdown state
+  let status = MockAsyncShutdown.status();
+  equal(findInStatus(status[0], "Mock provider"), "(none)");
+  equal(status[1].name, "AddonRepository: async shutdown");
+  equal(status[1].state, "pending");
+  // let the provider finish
+  mockProvider.doneResolve();
+
+  // Wait for manager to call repo shutdown and start waiting for it
+  yield mockRepo.shutdownPromise;
+  // Check the shutdown state
+  status = MockAsyncShutdown.status();
+  equal(status[0].name, "AddonManager: Waiting for providers to shut down.");
+  equal(status[0].state, "Complete");
+  equal(status[1].name, "AddonRepository: async shutdown");
+  equal(status[1].state, "in progress");
+
+  // Now finish our shutdown, and wait for the manager to wrap up
+  mockRepo.doneResolve();
+  yield managerDown;
+
+  // Check the shutdown state again
+  status = MockAsyncShutdown.status();
+  equal(status[0].name, "AddonRepository: async shutdown");
+  equal(status[0].state, "done");
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_provider_unsafe_access_shutdown.js b/toolkit/mozapps/webextensions/test/xpcshell/test_provider_unsafe_access_shutdown.js
new file mode 100644
index 000000000..f90e38292
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_provider_unsafe_access_shutdown.js
@@ -0,0 +1,64 @@
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+var shutdownOrder = [];
+
+function mockAddonProvider(name) {
+  let mockProvider = {
+    hasShutdown: false,
+    unsafeAccess: false,
+
+    shutdownCallback: null,
+
+    startup() { },
+    shutdown() {
+      this.hasShutdown = true;
+      shutdownOrder.push(this.name);
+      if (this.shutdownCallback)
+        return this.shutdownCallback();
+      return undefined;
+    },
+    getAddonByID(id, callback) {
+      if (this.hasShutdown) {
+        this.unsafeAccess = true;
+      }
+      callback(null);
+    },
+
+    get name() {
+      return name;
+    },
+  };
+
+  return mockProvider;
+}
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* unsafeProviderShutdown() {
+  let firstProvider = mockAddonProvider("Mock1");
+  AddonManagerPrivate.registerProvider(firstProvider);
+  let secondProvider = mockAddonProvider("Mock2");
+  AddonManagerPrivate.registerProvider(secondProvider);
+
+  startupManager();
+
+  let shutdownPromise = null;
+  yield new Promise(resolve => {
+    secondProvider.shutdownCallback = function() {
+      return new Promise(shutdownResolve => {
+        AddonManager.getAddonByID("does-not-exist", () => {
+          shutdownResolve();
+          resolve();
+        });
+      });
+    };
+
+    shutdownPromise = promiseShutdownManager();
+  });
+  yield shutdownPromise;
+
+  equal(shutdownOrder.join(","), ["Mock1", "Mock2"].join(","), "Mock providers should have shutdown in expected order");
+  ok(!firstProvider.unsafeAccess, "First registered mock provider should not have been accessed unsafely");
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_provider_unsafe_access_startup.js b/toolkit/mozapps/webextensions/test/xpcshell/test_provider_unsafe_access_startup.js
new file mode 100644
index 000000000..1193ddfe4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_provider_unsafe_access_startup.js
@@ -0,0 +1,55 @@
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+var startupOrder = [];
+
+function mockAddonProvider(name) {
+  let mockProvider = {
+    hasStarted: false,
+    unsafeAccess: false,
+
+    startupCallback: null,
+
+    startup() {
+      this.hasStarted = true;
+      startupOrder.push(this.name);
+      if (this.startupCallback)
+        this.startupCallback();
+    },
+    getAddonByID(id, callback) {
+      if (!this.hasStarted) {
+        this.unsafeAccess = true;
+      }
+      callback(null);
+    },
+
+    get name() {
+      return name;
+    },
+  };
+
+  return mockProvider;
+}
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* unsafeProviderStartup() {
+  let secondProvider = null;
+
+  yield new Promise(resolve => {
+    let firstProvider = mockAddonProvider("Mock1");
+    firstProvider.startupCallback = function() {
+      AddonManager.getAddonByID("does-not-exist", resolve);
+    };
+    AddonManagerPrivate.registerProvider(firstProvider);
+
+    secondProvider = mockAddonProvider("Mock2");
+    AddonManagerPrivate.registerProvider(secondProvider);
+
+    startupManager();
+  });
+
+  equal(startupOrder.join(","), ["Mock1", "Mock2"].join(","), "Mock providers should have hasStarted in expected order");
+  ok(!secondProvider.unsafeAccess, "Second registered mock provider should not have been accessed unsafely");
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_proxies.js b/toolkit/mozapps/webextensions/test/xpcshell/test_proxies.js
new file mode 100644
index 000000000..7b28c78f2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_proxies.js
@@ -0,0 +1,240 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests the semantics of extension proxy files and symlinks
+
+Components.utils.import("resource://gre/modules/AppConstants.jsm");
+Components.utils.import("resource://gre/modules/osfile.jsm");
+
+var ADDONS = [
+  {
+    id: "proxy1@tests.mozilla.org",
+    dirId: "proxy1@tests.mozilla.com",
+    type: "proxy"
+  },
+  {
+    id: "proxy2@tests.mozilla.org",
+    type: "proxy"
+  },
+  {
+    id: "symlink1@tests.mozilla.org",
+    dirId: "symlink1@tests.mozilla.com",
+    type: "symlink"
+  },
+  {
+    id: "symlink2@tests.mozilla.org",
+    type: "symlink"
+  }
+];
+
+var METADATA = {
+  version: "2.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+}
+
+const ios = AM_Cc["@mozilla.org/network/io-service;1"].getService(AM_Ci.nsIIOService);
+
+const LocalFile = Components.Constructor("@mozilla.org/file/local;1",
+                                         "nsILocalFile", "initWithPath");
+const Process = Components.Constructor("@mozilla.org/process/util;1",
+                                       "nsIProcess", "init");
+
+const gHaveSymlinks = AppConstants.platform != "win";
+
+
+function createSymlink(aSource, aDest) {
+  if (aSource instanceof AM_Ci.nsIFile)
+    aSource = aSource.path;
+  if (aDest instanceof AM_Ci.nsIFile)
+    aDest = aDest.path;
+
+  return OS.File.unixSymLink(aSource, aDest);
+}
+
+function writeFile(aData, aFile) {
+  if (!aFile.parent.exists())
+    aFile.parent.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+
+  var fos = AM_Cc["@mozilla.org/network/file-output-stream;1"].
+            createInstance(AM_Ci.nsIFileOutputStream);
+  fos.init(aFile,
+           FileUtils.MODE_WRONLY | FileUtils.MODE_CREATE | FileUtils.MODE_TRUNCATE,
+           FileUtils.PERMS_FILE, 0);
+  fos.write(aData, aData.length);
+  fos.close();
+}
+
+function checkAddonsExist() {
+  for (let addon of ADDONS) {
+    let file = addon.directory.clone();
+    file.append("install.rdf");
+    do_check_true(file.exists(), Components.stack.caller);
+  }
+}
+
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2", "2");
+
+  add_task(run_proxy_tests);
+
+  if (gHaveSymlinks)
+    add_task(run_symlink_tests);
+
+  run_next_test();
+}
+
+function* run_proxy_tests() {
+  if (!gHaveSymlinks) {
+    ADDONS = ADDONS.filter(a => a.type != "symlink");
+  }
+
+  for (let addon of ADDONS) {
+    addon.directory = gTmpD.clone();
+    addon.directory.append(addon.id);
+
+    addon.proxyFile = profileDir.clone();
+    addon.proxyFile.append(addon.dirId || addon.id);
+
+    METADATA.id = addon.id;
+    METADATA.name = addon.id;
+    writeInstallRDFToDir(METADATA, gTmpD);
+
+    if (addon.type == "proxy") {
+      writeFile(addon.directory.path, addon.proxyFile)
+    }
+    else if (addon.type == "symlink") {
+      yield createSymlink(addon.directory, addon.proxyFile)
+    }
+  }
+
+  startupManager();
+
+  // Check that all add-ons original sources still exist after invalid
+  // add-ons have been removed at startup.
+  checkAddonsExist();
+
+  return new Promise(resolve => {
+    AddonManager.getAddonsByIDs(ADDONS.map(addon => addon.id), resolve);
+  }).then(addons => {
+    try {
+      for (let [i, addon] of addons.entries()) {
+        // Ensure that valid proxied add-ons were installed properly on
+        // platforms that support the installation method.
+        print(ADDONS[i].id,
+              ADDONS[i].dirId,
+              ADDONS[i].dirId != null,
+              ADDONS[i].type == "symlink");
+        do_check_eq(addon == null,
+                    ADDONS[i].dirId != null);
+
+        if (addon != null) {
+          let fixURL = url => {
+            if (AppConstants.platform == "macosx")
+              return url.replace(RegExp(`^file:///private/`), "file:///");
+            return url;
+          };
+
+          // Check that proxied add-ons do not have upgrade permissions.
+          do_check_eq(addon.permissions & AddonManager.PERM_CAN_UPGRADE, 0);
+
+          // Check that getResourceURI points to the right place.
+          do_check_eq(ios.newFileURI(ADDONS[i].directory).spec,
+                      fixURL(addon.getResourceURI().spec),
+                      `Base resource URL resolves as expected`);
+
+          let file = ADDONS[i].directory.clone();
+          file.append("install.rdf");
+
+          do_check_eq(ios.newFileURI(file).spec,
+                      fixURL(addon.getResourceURI("install.rdf").spec),
+                      `Resource URLs resolve as expected`);
+
+          addon.uninstall();
+        }
+      }
+
+      // Check that original sources still exist after explicit uninstall.
+      restartManager();
+      checkAddonsExist();
+
+      shutdownManager();
+
+      // Check that all of the proxy files have been removed and remove
+      // the original targets.
+      for (let addon of ADDONS) {
+        equal(addon.proxyFile.exists(), addon.dirId != null,
+              `Proxy file ${addon.proxyFile.path} should exist?`);
+        addon.directory.remove(true);
+        try {
+          addon.proxyFile.remove(false);
+        } catch (e) {}
+      }
+    }
+    catch (e) {
+      do_throw(e);
+    }
+  });
+}
+
+function* run_symlink_tests() {
+  // Check that symlinks are not followed out of a directory tree
+  // when deleting an add-on.
+
+  METADATA.id = "unpacked@test.mozilla.org";
+  METADATA.name = METADATA.id;
+  METADATA.unpack = "true";
+
+  let tempDirectory = gTmpD.clone();
+  tempDirectory.append(METADATA.id);
+
+  let tempFile = tempDirectory.clone();
+  tempFile.append("test.txt");
+  tempFile.create(AM_Ci.nsIFile.NORMAL_FILE_TYPE, 0o644);
+
+  let addonDirectory = profileDir.clone();
+  addonDirectory.append(METADATA.id);
+
+  writeInstallRDFToDir(METADATA, profileDir);
+
+  let symlink = addonDirectory.clone();
+  symlink.append(tempDirectory.leafName);
+  yield createSymlink(tempDirectory, symlink);
+
+  // Make sure that the symlink was created properly.
+  let file = symlink.clone();
+  file.append(tempFile.leafName);
+  file.normalize();
+  do_check_eq(file.path.replace(/^\/private\//, "/"), tempFile.path);
+
+  startupManager();
+
+  return new Promise(resolve => {
+    AddonManager.getAddonByID(METADATA.id, resolve);
+  }).then(addon => {
+    do_check_neq(addon, null);
+
+    addon.uninstall();
+
+    restartManager();
+    shutdownManager();
+
+    // Check that the install directory is gone.
+    do_check_false(addonDirectory.exists());
+
+    // Check that the temp file is not gone.
+    do_check_true(tempFile.exists());
+
+    tempDirectory.remove(true);
+  });
+}
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_proxy.js b/toolkit/mozapps/webextensions/test/xpcshell/test_proxy.js
new file mode 100644
index 000000000..c35870c9b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_proxy.js
@@ -0,0 +1,106 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const ID = "proxy1@tests.mozilla.org";
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+startupManager();
+
+BootstrapMonitor.init();
+
+// Ensure that a proxy file to an add-on with a valid manifest works.
+add_task(function*() {
+  let tempdir = gTmpD.clone();
+  writeInstallRDFToDir({
+    id: ID,
+    version: "1.0",
+    bootstrap: true,
+    unpack: true,
+    targetApplications: [{
+          id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+        }],
+    name: "Test Bootstrap 1 (proxy)",
+  }, tempdir, ID, "bootstrap.js");
+
+  let unpackedAddon = tempdir.clone();
+  unpackedAddon.append(ID);
+  do_get_file("data/test_proxy/bootstrap.js")
+    .copyTo(unpackedAddon, "bootstrap.js");
+
+  // create proxy file in profile/extensions dir
+  let extensionsDir = gProfD.clone();
+  extensionsDir.append("extensions");
+  let proxyFile = writeProxyFileToDir(extensionsDir, unpackedAddon, ID);
+
+  yield promiseRestartManager();
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  let addon = yield promiseAddonByID(ID);
+
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Bootstrap 1 (proxy)");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  do_check_true(proxyFile.exists());
+
+  addon.uninstall();
+  unpackedAddon.remove(true);
+
+  yield promiseRestartManager();
+});
+
+
+// Ensure that a proxy file to an add-on is not removed even
+// if the manifest file is invalid. See bug 1195353.
+add_task(function*() {
+  let tempdir = gTmpD.clone();
+
+  // use a mismatched ID to make this install.rdf invalid
+  writeInstallRDFToDir({
+    id: "bad-proxy1@tests.mozilla.org",
+    version: "1.0",
+    bootstrap: true,
+    unpack: true,
+    targetApplications: [{
+          id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+        }],
+    name: "Test Bootstrap 1 (proxy)",
+  }, tempdir, ID, "bootstrap.js");
+
+  let unpackedAddon = tempdir.clone();
+  unpackedAddon.append(ID);
+  do_get_file("data/test_proxy/bootstrap.js")
+    .copyTo(unpackedAddon, "bootstrap.js");
+
+  // create proxy file in profile/extensions dir
+  let extensionsDir = gProfD.clone();
+  extensionsDir.append("extensions");
+  let proxyFile = writeProxyFileToDir(extensionsDir, unpackedAddon, ID);
+
+  yield promiseRestartManager();
+
+  BootstrapMonitor.checkAddonNotInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonNotStarted(ID, "1.0");
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon, null);
+
+  do_check_true(proxyFile.exists());
+
+  unpackedAddon.remove(true);
+  proxyFile.remove(true);
+
+  yield promiseRestartManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_registry.js b/toolkit/mozapps/webextensions/test/xpcshell/test_registry.js
new file mode 100644
index 000000000..eab7af6b6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_registry.js
@@ -0,0 +1,158 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests that extensions installed through the registry work as expected
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+// Enable loading extensions from the user and system scopes
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_USER +
+                          AddonManager.SCOPE_SYSTEM);
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+const addon1Dir = writeInstallRDFForExtension(addon1, gProfD, "addon1");
+const addon2Dir = writeInstallRDFForExtension(addon2, gProfD, "addon2");
+
+let registry;
+
+function run_test() {
+  // This test only works where there is a registry.
+  if (!("nsIWindowsRegKey" in AM_Ci))
+    return;
+
+  registry = new MockRegistry();
+  do_register_cleanup(() => {
+    registry.shutdown();
+  });
+
+  do_test_pending();
+
+  run_test_1();
+}
+
+// Tests whether basic registry install works
+function run_test_1() {
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_LOCAL_MACHINE,
+                   "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon1@tests.mozilla.org", addon1Dir.path);
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon2@tests.mozilla.org", addon2Dir.path);
+
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org"], function([a1, a2]) {
+    do_check_neq(a1, null);
+    do_check_true(a1.isActive);
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_eq(a1.scope, AddonManager.SCOPE_SYSTEM);
+
+    do_check_neq(a2, null);
+    do_check_true(a2.isActive);
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_eq(a2.scope, AddonManager.SCOPE_USER);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+// Tests whether uninstalling from the registry works
+function run_test_2() {
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_LOCAL_MACHINE,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon1@tests.mozilla.org", null);
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon2@tests.mozilla.org", null);
+
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org"], function([a1, a2]) {
+    do_check_eq(a1, null);
+    do_check_eq(a2, null);
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Checks that the ID in the registry must match that in the install manifest
+function run_test_3() {
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_LOCAL_MACHINE,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon1@tests.mozilla.org", addon2Dir.path);
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon2@tests.mozilla.org", addon1Dir.path);
+
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org"], function([a1, a2]) {
+    do_check_eq(a1, null);
+    do_check_eq(a2, null);
+
+    do_execute_soon(run_test_4);
+  });
+}
+
+// Tests whether an extension's ID can change without its directory changing
+function run_test_4() {
+  // Restarting with bad items in the registry should not force an EM restart
+  restartManager();
+
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_LOCAL_MACHINE,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon1@tests.mozilla.org", null);
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon2@tests.mozilla.org", null);
+
+  restartManager();
+
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_LOCAL_MACHINE,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon1@tests.mozilla.org", addon1Dir.path);
+  restartManager();
+
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_LOCAL_MACHINE,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon1@tests.mozilla.org", null);
+  registry.setValue(AM_Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
+                    "SOFTWARE\\Mozilla\\XPCShell\\Extensions",
+                    "addon2@tests.mozilla.org", addon1Dir.path);
+  writeInstallRDFForExtension(addon2, gProfD, "addon1");
+
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org"], function([a1, a2]) {
+    do_check_eq(a1, null);
+    do_check_neq(a2, null);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_reload.js b/toolkit/mozapps/webextensions/test/xpcshell/test_reload.js
new file mode 100644
index 000000000..5873d1980
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_reload.js
@@ -0,0 +1,235 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+
+const sampleAddon = {
+  id: "webextension1@tests.mozilla.org",
+  name: "webextension_1",
+}
+
+const manifestSample = {
+  id: "bootstrap1@tests.mozilla.org",
+  version: "1.0",
+  bootstrap: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }],
+};
+
+const { Management } = Components.utils.import("resource://gre/modules/Extension.jsm", {});
+
+function promiseAddonStartup() {
+  return new Promise(resolve => {
+    let listener = (extension) => {
+      Management.off("startup", listener);
+      resolve(extension);
+    };
+
+    Management.on("startup", listener);
+  });
+}
+
+function* installAddon(fixtureName, addonID) {
+  yield promiseInstallAllFiles([do_get_addon(fixtureName)]);
+  return promiseAddonByID(addonID);
+}
+
+function* tearDownAddon(addon) {
+  addon.uninstall();
+  yield promiseShutdownManager();
+}
+
+add_task(function* test_reloading_a_temp_addon() {
+  yield promiseRestartManager();
+  yield AddonManager.installTemporaryAddon(do_get_addon(sampleAddon.name));
+  const addon = yield promiseAddonByID(sampleAddon.id)
+
+  var receivedOnUninstalled = false;
+  var receivedOnUninstalling = false;
+  var receivedOnInstalled = false;
+  var receivedOnInstalling = false;
+
+  const onReload = new Promise(resolve => {
+    const listener = {
+      onUninstalling: (addonObj) => {
+        if (addonObj.id === sampleAddon.id) {
+          receivedOnUninstalling = true;
+        }
+      },
+      onUninstalled: (addonObj) => {
+        if (addonObj.id === sampleAddon.id) {
+          receivedOnUninstalled = true;
+        }
+      },
+      onInstalling: (addonObj) => {
+        receivedOnInstalling = true;
+        equal(addonObj.id, sampleAddon.id);
+      },
+      onInstalled: (addonObj) => {
+        receivedOnInstalled = true;
+        equal(addonObj.id, sampleAddon.id);
+        // This should be the last event called.
+        AddonManager.removeAddonListener(listener);
+        resolve();
+      },
+    }
+    AddonManager.addAddonListener(listener);
+  });
+
+  yield addon.reload();
+  yield onReload;
+
+  // Make sure reload() doesn't trigger uninstall events.
+  equal(receivedOnUninstalled, false, "reload should not trigger onUninstalled");
+  equal(receivedOnUninstalling, false, "reload should not trigger onUninstalling");
+
+  // Make sure reload() triggers install events, like an upgrade.
+  equal(receivedOnInstalling, true, "reload should trigger onInstalling");
+  equal(receivedOnInstalled, true, "reload should trigger onInstalled");
+
+  yield tearDownAddon(addon);
+});
+
+add_task(function* test_can_reload_permanent_addon() {
+  yield promiseRestartManager();
+  const addon = yield installAddon(sampleAddon.name, sampleAddon.id);
+
+  let disabledCalled = false;
+  let enabledCalled = false;
+  AddonManager.addAddonListener({
+    onDisabled: (aAddon) => {
+      do_check_false(enabledCalled);
+      disabledCalled = true
+    },
+    onEnabled: (aAddon) => {
+      do_check_true(disabledCalled);
+      enabledCalled = true
+    }
+  })
+
+  yield addon.reload();
+
+  do_check_true(disabledCalled);
+  do_check_true(enabledCalled);
+
+  notEqual(addon, null);
+  equal(addon.appDisabled, false);
+  equal(addon.userDisabled, false);
+
+  yield tearDownAddon(addon);
+});
+
+add_task(function* test_reload_to_invalid_version_fails() {
+  yield promiseRestartManager();
+  let tempdir = gTmpD.clone();
+
+  // The initial version of the add-on will be compatible, and will therefore load
+  const addonId = "invalid_version_cannot_be_reloaded@tests.mozilla.org";
+  let manifest = {
+    name: "invalid_version_cannot_be_reloaded",
+    description: "test invalid_version_cannot_be_reloaded",
+    manifest_version: 2,
+    version: "1.0",
+    applications: {
+      gecko: {
+        id: addonId,
+      }
+    },
+  };
+
+  let addonDir = yield promiseWriteWebManifestForExtension(manifest, tempdir, "invalid_version");
+  yield AddonManager.installTemporaryAddon(addonDir);
+  yield promiseAddonStartup();
+
+  let addon = yield promiseAddonByID(addonId);
+  notEqual(addon, null);
+  equal(addon.id, addonId);
+  equal(addon.version, "1.0");
+  equal(addon.appDisabled, false);
+  equal(addon.userDisabled, false);
+  addonDir.remove(true);
+
+  // update the manifest to make the add-on version incompatible, so the reload will reject
+  manifest.applications.gecko.strict_min_version = "1";
+  manifest.applications.gecko.strict_max_version = "1";
+  manifest.version = "2.0";
+
+  addonDir = yield promiseWriteWebManifestForExtension(manifest, tempdir, "invalid_version", false);
+  let expectedMsg = new RegExp("Add-on invalid_version_cannot_be_reloaded@tests.mozilla.org is not compatible with application version. " +
+                               "add-on minVersion: 1. add-on maxVersion: 1.");
+
+  yield Assert.rejects(addon.reload(),
+                       expectedMsg,
+                       "Reload rejects when application version does not fall between minVersion and maxVersion");
+
+  let reloadedAddon = yield promiseAddonByID(addonId);
+  notEqual(reloadedAddon, null);
+  equal(reloadedAddon.id, addonId);
+  equal(reloadedAddon.version, "1.0");
+  equal(reloadedAddon.appDisabled, false);
+  equal(reloadedAddon.userDisabled, false);
+
+  yield tearDownAddon(reloadedAddon);
+  addonDir.remove(true);
+});
+
+add_task(function* test_manifest_changes_are_refreshed() {
+  yield promiseRestartManager();
+  let tempdir = gTmpD.clone();
+
+  const unpackedAddon = writeInstallRDFToDir(
+    Object.assign({}, manifestSample, {
+      name: "Test Bootstrap 1",
+    }), tempdir, manifestSample.id, "bootstrap.js");
+
+  yield AddonManager.installTemporaryAddon(unpackedAddon);
+  const addon = yield promiseAddonByID(manifestSample.id);
+  notEqual(addon, null);
+  equal(addon.name, "Test Bootstrap 1");
+
+  writeInstallRDFToDir(Object.assign({}, manifestSample, {
+    name: "Test Bootstrap 1 (reloaded)",
+  }), tempdir, manifestSample.id);
+
+  yield addon.reload();
+
+  const reloadedAddon = yield promiseAddonByID(manifestSample.id);
+  notEqual(reloadedAddon, null);
+  equal(reloadedAddon.name, "Test Bootstrap 1 (reloaded)");
+
+  yield tearDownAddon(reloadedAddon);
+  unpackedAddon.remove(true);
+});
+
+add_task(function* test_reload_fails_on_installation_errors() {
+  yield promiseRestartManager();
+  let tempdir = gTmpD.clone();
+
+  const unpackedAddon = writeInstallRDFToDir(
+    Object.assign({}, manifestSample, {
+      name: "Test Bootstrap 1",
+    }), tempdir, manifestSample.id, "bootstrap.js");
+
+  yield AddonManager.installTemporaryAddon(unpackedAddon);
+  const addon = yield promiseAddonByID(manifestSample.id);
+  notEqual(addon, null);
+
+  // Trigger an installation error with an empty manifest.
+  writeInstallRDFToDir({}, tempdir, manifestSample.id);
+
+  yield Assert.rejects(addon.reload(), /No ID in install manifest/);
+
+  // The old add-on should be active. I.E. the broken reload will not
+  // disturb it.
+  const oldAddon = yield promiseAddonByID(manifestSample.id);
+  notEqual(oldAddon, null);
+  equal(oldAddon.isActive, true);
+  equal(oldAddon.name, "Test Bootstrap 1");
+
+  yield tearDownAddon(addon);
+  unpackedAddon.remove(true);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_safemode.js b/toolkit/mozapps/webextensions/test/xpcshell/test_safemode.js
new file mode 100644
index 000000000..05647f807
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_safemode.js
@@ -0,0 +1,115 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/NetUtil.jsm");
+
+// Tests that extensions behave correctly in safe mode
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  optionsURL: "chrome://foo/content/options.xul",
+  aboutURL: "chrome://foo/content/about.xul",
+  iconURL: "chrome://foo/content/icon.png",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+var gIconURL = null;
+
+// Sets up the profile by installing an add-on.
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  gAppInfo.inSafeMode = true;
+
+  startupManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(a1) {
+    do_check_eq(a1, null);
+    do_check_not_in_crash_annotation(addon1.id, addon1.version);
+
+    writeInstallRDFForExtension(addon1, profileDir, addon1.id, "icon.png");
+    gIconURL = do_get_addon_root_uri(profileDir.clone(), addon1.id) + "icon.png";
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(newa1) {
+      do_check_neq(newa1, null);
+      do_check_false(newa1.isActive);
+      do_check_false(newa1.userDisabled);
+      do_check_eq(newa1.aboutURL, null);
+      do_check_eq(newa1.optionsURL, null);
+      do_check_eq(newa1.iconURL, gIconURL);
+      do_check_true(isExtensionInAddonsList(profileDir, newa1.id));
+      do_check_true(hasFlag(newa1.permissions, AddonManager.PERM_CAN_DISABLE));
+      do_check_false(hasFlag(newa1.permissions, AddonManager.PERM_CAN_ENABLE));
+      do_check_eq(newa1.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_NONE);
+      do_check_not_in_crash_annotation(addon1.id, addon1.version);
+
+      run_test_1();
+    });
+  }));
+}
+
+// Disabling an add-on should work
+function run_test_1() {
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      ["onDisabling", false],
+      "onDisabled"
+    ]
+  });
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_false(hasFlag(a1.operationsRequiringRestart,
+                           AddonManager.OP_NEEDS_RESTART_DISABLE));
+    a1.userDisabled = true;
+    do_check_false(a1.isActive);
+    do_check_eq(a1.aboutURL, null);
+    do_check_eq(a1.optionsURL, null);
+    do_check_eq(a1.iconURL, gIconURL);
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_eq(a1.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_NONE);
+    do_check_not_in_crash_annotation(addon1.id, addon1.version);
+
+    ensure_test_completed();
+
+    run_test_2();
+  });
+}
+
+// Enabling an add-on should happen without restart but not become active.
+function run_test_2() {
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      ["onEnabling", false],
+      "onEnabled"
+    ]
+  });
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    a1.userDisabled = false;
+    do_check_false(a1.isActive);
+    do_check_eq(a1.aboutURL, null);
+    do_check_eq(a1.optionsURL, null);
+    do_check_eq(a1.iconURL, gIconURL);
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_eq(a1.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_NONE);
+    do_check_not_in_crash_annotation(addon1.id, addon1.version);
+
+    ensure_test_completed();
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_schema_change.js b/toolkit/mozapps/webextensions/test/xpcshell/test_schema_change.js
new file mode 100644
index 000000000..3d386f663
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_schema_change.js
@@ -0,0 +1,317 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+BootstrapMonitor.init();
+
+const PREF_DB_SCHEMA = "extensions.databaseSchema";
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "49");
+startupManager();
+
+/**
+ *  Schema change with no application update reloads metadata.
+ */
+add_task(function* schema_change() {
+  const ID = "schema-change@tests.mozilla.org";
+
+  let xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on",
+    version: "1.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1.9.2"
+    }]
+  });
+
+  yield promiseInstallAllFiles([xpiFile]);
+
+  let addon = yield promiseAddonByID(ID);
+
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "1.0", "Got the expected version");
+
+  yield shutdownManager();
+
+  xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on 2",
+    version: "2.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1.9.2"
+    }]
+  });
+
+  Services.prefs.setIntPref(PREF_DB_SCHEMA, 0);
+
+  let file = profileDir.clone();
+  file.append(`${ID}.xpi`);
+
+  // Make sure the timestamp is unchanged, so it is not re-scanned for that reason.
+  let timestamp = file.lastModifiedTime;
+  xpiFile.moveTo(profileDir, `${ID}.xpi`);
+
+  file.lastModifiedTime = timestamp;
+
+  yield startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "2.0", "Got the expected version");
+
+  let waitUninstall = promiseAddonEvent("onUninstalled");
+  addon.uninstall();
+  yield waitUninstall;
+});
+
+/**
+ *  Application update with no schema change does not reload metadata.
+ */
+add_task(function* schema_change() {
+  const ID = "schema-change@tests.mozilla.org";
+
+  let xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on",
+    version: "1.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  });
+
+  yield promiseInstallAllFiles([xpiFile]);
+
+  let addon = yield promiseAddonByID(ID);
+
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "1.0", "Got the expected version");
+
+  yield shutdownManager();
+
+  xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on 2",
+    version: "2.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  });
+
+  gAppInfo.version = "2";
+  let file = profileDir.clone();
+  file.append(`${ID}.xpi`);
+
+  // Make sure the timestamp is unchanged, so it is not re-scanned for that reason.
+  let timestamp = file.lastModifiedTime;
+  xpiFile.moveTo(profileDir, `${ID}.xpi`);
+
+  file.lastModifiedTime = timestamp;
+
+  yield startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "1.0", "Got the expected version");
+
+  let waitUninstall = promiseAddonEvent("onUninstalled");
+  addon.uninstall();
+  yield waitUninstall;
+});
+
+/**
+ *  App update and a schema change causes a reload of the manifest.
+ */
+add_task(function* schema_change_app_update() {
+  const ID = "schema-change@tests.mozilla.org";
+
+  let xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on",
+    version: "1.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  });
+
+  yield promiseInstallAllFiles([xpiFile]);
+
+  let addon = yield promiseAddonByID(ID);
+
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "1.0", "Got the expected version");
+
+  yield shutdownManager();
+
+  xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on 2",
+    version: "2.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "3"
+    }]
+  });
+
+  gAppInfo.version = "3";
+  Services.prefs.setIntPref(PREF_DB_SCHEMA, 0);
+
+  let file = profileDir.clone();
+  file.append(`${ID}.xpi`);
+
+  // Make sure the timestamp is unchanged, so it is not re-scanned for that reason.
+  let timestamp = file.lastModifiedTime;
+  xpiFile.moveTo(profileDir, `${ID}.xpi`);
+
+  file.lastModifiedTime = timestamp;
+
+  yield startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.appDisabled, false);
+  equal(addon.version, "2.0", "Got the expected version");
+
+  let waitUninstall = promiseAddonEvent("onUninstalled");
+  addon.uninstall();
+  yield waitUninstall;
+});
+
+/**
+ *  No schema change, no manifest reload.
+ */
+add_task(function* schema_change() {
+  const ID = "schema-change@tests.mozilla.org";
+
+  let xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on",
+    version: "1.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1.9.2"
+    }]
+  });
+
+  yield promiseInstallAllFiles([xpiFile]);
+
+  let addon = yield promiseAddonByID(ID);
+
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "1.0", "Got the expected version");
+
+  yield shutdownManager();
+
+  xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on 2",
+    version: "2.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1.9.2"
+    }]
+  });
+
+  let file = profileDir.clone();
+  file.append(`${ID}.xpi`);
+
+  // Make sure the timestamp is unchanged, so it is not re-scanned for that reason.
+  let timestamp = file.lastModifiedTime;
+  xpiFile.moveTo(profileDir, `${ID}.xpi`);
+
+  file.lastModifiedTime = timestamp;
+
+  yield startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "1.0", "Got the expected version");
+
+  let waitUninstall = promiseAddonEvent("onUninstalled");
+  addon.uninstall();
+  yield waitUninstall;
+});
+
+/**
+ *  Modified timestamp on the XPI causes a reload of the manifest.
+ */
+add_task(function* schema_change() {
+  const ID = "schema-change@tests.mozilla.org";
+
+  let xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on",
+    version: "1.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1.9.2"
+    }]
+  });
+
+  yield promiseInstallAllFiles([xpiFile]);
+
+  let addon = yield promiseAddonByID(ID);
+
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "1.0", "Got the expected version");
+
+  yield shutdownManager();
+
+  xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on 2",
+    version: "2.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1.9.2"
+    }]
+  });
+
+  xpiFile.moveTo(profileDir, `${ID}.xpi`);
+
+  let file = profileDir.clone();
+  file.append(`${ID}.xpi`);
+
+  // Set timestamp in the future so manifest is re-scanned.
+  let timestamp = new Date(Date.now() + 60000);
+  xpiFile.moveTo(profileDir, `${ID}.xpi`);
+
+  file.lastModifiedTime = timestamp;
+
+  yield startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "2.0", "Got the expected version");
+
+  let waitUninstall = promiseAddonEvent("onUninstalled");
+  addon.uninstall();
+  yield waitUninstall;
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_seen.js b/toolkit/mozapps/webextensions/test/xpcshell/test_seen.js
new file mode 100644
index 000000000..e499e7339
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_seen.js
@@ -0,0 +1,211 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const ID = "bootstrap1@tests.mozilla.org";
+
+let profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+startupManager();
+
+// By default disable add-ons from the profile
+Services.prefs.setIntPref("extensions.autoDisableScopes", AddonManager.SCOPE_PROFILE);
+
+// Installing an add-on through the API should mark it as seen
+add_task(function*() {
+  let install = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), resolve));
+  yield promiseCompleteAllInstalls([install]);
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_false(hasFlag(install.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+  let addon = install.addon;
+  do_check_eq(addon.version, "1.0");
+  do_check_false(addon.foreignInstall);
+  do_check_true(addon.seen);
+
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_false(addon.foreignInstall);
+  do_check_true(addon.seen);
+
+  // Installing an update should retain that
+  install = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_2"), resolve));
+  yield promiseCompleteAllInstalls([install]);
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_false(hasFlag(install.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+  addon = install.addon;
+  do_check_eq(addon.version, "2.0");
+  do_check_false(addon.foreignInstall);
+  do_check_true(addon.seen);
+
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_false(addon.foreignInstall);
+  do_check_true(addon.seen);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+});
+
+// Sideloading an add-on should mark it as unseen
+add_task(function*() {
+  let path = manuallyInstall(do_get_addon("test_bootstrap1_1"), profileDir, ID);
+  // Make sure the startup code will detect sideloaded updates
+  setExtensionModifiedTime(path, Date.now() - 10000);
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon.version, "1.0");
+  do_check_true(addon.foreignInstall);
+  do_check_false(addon.seen);
+
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_true(addon.foreignInstall);
+  do_check_false(addon.seen);
+
+  yield promiseShutdownManager();
+
+  // Sideloading an update shouldn't change the state
+  manuallyUninstall(profileDir, ID);
+  manuallyInstall(do_get_addon("test_bootstrap1_2"), profileDir, ID);
+  setExtensionModifiedTime(path, Date.now());
+
+  startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_eq(addon.version, "2.0");
+  do_check_true(addon.foreignInstall);
+  do_check_false(addon.seen);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+});
+
+// Sideloading an add-on should mark it as unseen
+add_task(function*() {
+  let path = manuallyInstall(do_get_addon("test_bootstrap1_1"), profileDir, ID);
+  // Make sure the startup code will detect sideloaded updates
+  setExtensionModifiedTime(path, Date.now() - 10000);
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon.version, "1.0");
+  do_check_true(addon.foreignInstall);
+  do_check_false(addon.seen);
+
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_true(addon.foreignInstall);
+  do_check_false(addon.seen);
+
+  // Updating through the API shouldn't change the state
+  let install = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_2"), resolve));
+  yield promiseCompleteAllInstalls([install]);
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_false(hasFlag(install.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+  addon = install.addon;
+  do_check_true(addon.foreignInstall);
+  do_check_false(addon.seen);
+
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_eq(addon.version, "2.0");
+  do_check_true(addon.foreignInstall);
+  do_check_false(addon.seen);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+});
+
+// Sideloading an add-on should mark it as unseen
+add_task(function*() {
+  let path = manuallyInstall(do_get_addon("test_bootstrap1_1"), profileDir, ID);
+  // Make sure the startup code will detect sideloaded updates
+  setExtensionModifiedTime(path, Date.now() - 10000);
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon.version, "1.0");
+  do_check_true(addon.foreignInstall);
+  do_check_false(addon.seen);
+  addon.markAsSeen();
+  do_check_true(addon.seen);
+
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_true(addon.foreignInstall);
+  do_check_true(addon.seen);
+
+  yield promiseShutdownManager();
+
+  // Sideloading an update shouldn't change the state
+  manuallyUninstall(profileDir, ID);
+  manuallyInstall(do_get_addon("test_bootstrap1_2"), profileDir, ID);
+  setExtensionModifiedTime(path, Date.now());
+
+  startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_eq(addon.version, "2.0");
+  do_check_true(addon.foreignInstall);
+  do_check_true(addon.seen);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+});
+
+// Sideloading an add-on should mark it as unseen
+add_task(function*() {
+  let path = manuallyInstall(do_get_addon("test_bootstrap1_1"), profileDir, ID);
+  // Make sure the startup code will detect sideloaded updates
+  setExtensionModifiedTime(path, Date.now() - 10000);
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon.version, "1.0");
+  do_check_true(addon.foreignInstall);
+  do_check_false(addon.seen);
+  addon.markAsSeen();
+  do_check_true(addon.seen);
+
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_true(addon.foreignInstall);
+  do_check_true(addon.seen);
+
+  // Updating through the API shouldn't change the state
+  let install = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_2"), resolve));
+  yield promiseCompleteAllInstalls([install]);
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_false(hasFlag(install.addon.pendingOperations, AddonManager.PENDING_INSTALL));
+
+  addon = install.addon;
+  do_check_true(addon.foreignInstall);
+  do_check_true(addon.seen);
+
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_eq(addon.version, "2.0");
+  do_check_true(addon.foreignInstall);
+  do_check_true(addon.seen);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_seen_newprofile.js b/toolkit/mozapps/webextensions/test/xpcshell/test_seen_newprofile.js
new file mode 100644
index 000000000..43ee18594
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_seen_newprofile.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const ID = "bootstrap1@tests.mozilla.org";
+
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_SYSTEM);
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+BootstrapMonitor.init();
+
+const globalDir = gProfD.clone();
+globalDir.append("extensions2");
+globalDir.append(gAppInfo.ID);
+registerDirectory("XRESysSExtPD", globalDir.parent);
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// By default disable add-ons from the system
+Services.prefs.setIntPref("extensions.autoDisableScopes", AddonManager.SCOPE_SYSTEM);
+
+// When new add-ons already exist in a system location when starting with a new
+// profile they should be marked as already seen.
+add_task(function*() {
+  manuallyInstall(do_get_addon("test_bootstrap1_1"), globalDir, ID);
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_true(addon.foreignInstall);
+  do_check_true(addon.seen);
+  do_check_true(addon.userDisabled);
+  do_check_false(addon.isActive);
+
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  yield promiseShutdownManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_shutdown.js b/toolkit/mozapps/webextensions/test/xpcshell/test_shutdown.js
new file mode 100644
index 000000000..725887bc1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_shutdown.js
@@ -0,0 +1,85 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Verify that API functions fail if the Add-ons Manager isn't initialised.
+
+const IGNORE = ["getPreferredIconURL", "escapeAddonURI",
+                "shouldAutoUpdate", "getStartupChanges",
+                "addTypeListener", "removeTypeListener",
+                "addAddonListener", "removeAddonListener",
+                "addInstallListener", "removeInstallListener",
+                "addManagerListener", "removeManagerListener",
+                "mapURIToAddonID", "shutdown", "init",
+                "stateToString", "errorToString", "getUpgradeListener",
+                "addUpgradeListener", "removeUpgradeListener"];
+
+const IGNORE_PRIVATE = ["AddonAuthor", "AddonCompatibilityOverride",
+                        "AddonScreenshot", "AddonType", "startup", "shutdown",
+                        "registerProvider", "unregisterProvider",
+                        "addStartupChange", "removeStartupChange",
+                        "recordTimestamp", "recordSimpleMeasure",
+                        "recordException", "getSimpleMeasures", "simpleTimer",
+                        "setTelemetryDetails", "getTelemetryDetails",
+                        "callNoUpdateListeners", "backgroundUpdateTimerHandler",
+                        "hasUpgradeListener", "getUpgradeListener"];
+
+function test_functions() {
+  for (let prop in AddonManager) {
+    if (IGNORE.indexOf(prop) != -1)
+      continue;
+    if (typeof AddonManager[prop] != "function")
+      continue;
+
+    let args = [];
+
+    // Getter functions need a callback and in some cases not having one will
+    // throw before checking if the add-ons manager is initialized so pass in
+    // an empty one.
+    if (prop.startsWith("get")) {
+      // For now all getter functions with more than one argument take the
+      // callback in the second argument.
+      if (AddonManager[prop].length > 1) {
+        args.push(undefined, () => {});
+      }
+      else {
+        args.push(() => {});
+      }
+    }
+
+    try {
+      do_print("AddonManager." + prop);
+      AddonManager[prop](...args);
+      do_throw(prop + " did not throw an exception");
+    }
+    catch (e) {
+      if (e.result != Components.results.NS_ERROR_NOT_INITIALIZED)
+        do_throw(prop + " threw an unexpected exception: " + e);
+    }
+  }
+
+  for (let prop in AddonManagerPrivate) {
+    if (typeof AddonManagerPrivate[prop] != "function")
+      continue;
+    if (IGNORE_PRIVATE.indexOf(prop) != -1)
+      continue;
+
+    try {
+      do_print("AddonManagerPrivate." + prop);
+      AddonManagerPrivate[prop]();
+      do_throw(prop + " did not throw an exception");
+    }
+    catch (e) {
+      if (e.result != Components.results.NS_ERROR_NOT_INITIALIZED)
+        do_throw(prop + " threw an unexpected exception: " + e);
+    }
+  }
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  test_functions();
+  startupManager();
+  shutdownManager();
+  test_functions();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_signed_inject.js b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_inject.js
new file mode 100644
index 000000000..3b96f40ba
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_inject.js
@@ -0,0 +1,382 @@
+// Enable signature checks for these tests
+gUseRealCertChecks = true;
+// Disable update security
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+const DATA = "data/signing_checks/";
+const ADDONS = {
+  bootstrap: {
+    unsigned: "unsigned_bootstrap_2.xpi",
+    badid: "signed_bootstrap_badid_2.xpi",
+    signed: "signed_bootstrap_2.xpi",
+    preliminary: "preliminary_bootstrap_2.xpi",
+  },
+  nonbootstrap: {
+    unsigned: "unsigned_nonbootstrap_2.xpi",
+    badid: "signed_nonbootstrap_badid_2.xpi",
+    signed: "signed_nonbootstrap_2.xpi",
+  }
+};
+const ID = "test@tests.mozilla.org";
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// Deletes a file from the test add-on in the profile
+function breakAddon(file) {
+  if (TEST_UNPACKED) {
+    file.append("test.txt");
+    file.remove(true);
+  }
+  else {
+    var zipW = AM_Cc["@mozilla.org/zipwriter;1"].
+               createInstance(AM_Ci.nsIZipWriter);
+    zipW.open(file, FileUtils.MODE_RDWR | FileUtils.MODE_APPEND);
+    zipW.removeEntry("test.txt", false);
+    zipW.close();
+  }
+}
+
+function resetPrefs() {
+  Services.prefs.setIntPref("bootstraptest.active_version", -1);
+  Services.prefs.setIntPref("bootstraptest.installed_version", -1);
+  Services.prefs.setIntPref("bootstraptest.startup_reason", -1);
+  Services.prefs.setIntPref("bootstraptest.shutdown_reason", -1);
+  Services.prefs.setIntPref("bootstraptest.install_reason", -1);
+  Services.prefs.setIntPref("bootstraptest.uninstall_reason", -1);
+  Services.prefs.setIntPref("bootstraptest.startup_oldversion", -1);
+  Services.prefs.setIntPref("bootstraptest.shutdown_newversion", -1);
+  Services.prefs.setIntPref("bootstraptest.install_oldversion", -1);
+  Services.prefs.setIntPref("bootstraptest.uninstall_newversion", -1);
+}
+
+function clearCache(file) {
+  if (TEST_UNPACKED)
+    return;
+
+  Services.obs.notifyObservers(file, "flush-cache-entry", null);
+}
+
+function getActiveVersion() {
+  return Services.prefs.getIntPref("bootstraptest.active_version");
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "4", "4");
+
+  // Start and stop the manager to initialise everything in the profile before
+  // actual testing
+  startupManager();
+  shutdownManager();
+  resetPrefs();
+
+  run_next_test();
+}
+
+// Injecting into profile (bootstrap)
+add_task(function*() {
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.bootstrap.unsigned), profileDir, ID);
+
+  startupManager();
+
+  // Currently we leave the sideloaded add-on there but just don't run it
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_MISSING);
+  do_check_eq(getActiveVersion(), -1);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+  resetPrefs();
+
+  do_check_false(file.exists());
+  clearCache(file);
+});
+
+add_task(function*() {
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.bootstrap.signed), profileDir, ID);
+  breakAddon(file);
+
+  startupManager();
+
+  // Currently we leave the sideloaded add-on there but just don't run it
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_BROKEN);
+  do_check_eq(getActiveVersion(), -1);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+  resetPrefs();
+
+  do_check_false(file.exists());
+  clearCache(file);
+});
+
+add_task(function*() {
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.bootstrap.badid), profileDir, ID);
+
+  startupManager();
+
+  // Currently we leave the sideloaded add-on there but just don't run it
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_BROKEN);
+  do_check_eq(getActiveVersion(), -1);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+  resetPrefs();
+
+  do_check_false(file.exists());
+  clearCache(file);
+});
+
+// Installs a signed add-on then modifies it in place breaking its signing
+add_task(function*() {
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.bootstrap.signed), profileDir, ID);
+
+  // Make it appear to come from the past so when we modify it later it is
+  // detected during startup. Obviously malware can bypass this method of
+  // detection but the periodic scan will catch that
+  yield promiseSetExtensionModifiedTime(file.path, Date.now() - 600000);
+
+  startupManager();
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_SIGNED);
+  do_check_eq(getActiveVersion(), 2);
+
+  yield promiseShutdownManager();
+  do_check_eq(getActiveVersion(), 0);
+
+  clearCache(file);
+  breakAddon(file);
+  resetPrefs();
+
+  startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_BROKEN);
+  do_check_eq(getActiveVersion(), -1);
+
+  let ids = AddonManager.getStartupChanges(AddonManager.STARTUP_CHANGE_DISABLED);
+  do_check_eq(ids.length, 1);
+  do_check_eq(ids[0], ID);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+  resetPrefs();
+
+  do_check_false(file.exists());
+  clearCache(file);
+});
+
+// Injecting into profile (non-bootstrap)
+add_task(function*() {
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.nonbootstrap.unsigned), profileDir, ID);
+
+  startupManager();
+
+  // Currently we leave the sideloaded add-on there but just don't run it
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_MISSING);
+  do_check_false(isExtensionInAddonsList(profileDir, ID));
+
+  addon.uninstall();
+  yield promiseRestartManager();
+  yield promiseShutdownManager();
+
+  do_check_false(file.exists());
+  clearCache(file);
+});
+
+add_task(function*() {
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.nonbootstrap.signed), profileDir, ID);
+  breakAddon(file);
+
+  startupManager();
+
+  // Currently we leave the sideloaded add-on there but just don't run it
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_BROKEN);
+  do_check_false(isExtensionInAddonsList(profileDir, ID));
+
+  addon.uninstall();
+  yield promiseRestartManager();
+  yield promiseShutdownManager();
+
+  do_check_false(file.exists());
+  clearCache(file);
+});
+
+add_task(function*() {
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.nonbootstrap.badid), profileDir, ID);
+
+  startupManager();
+
+  // Currently we leave the sideloaded add-on there but just don't run it
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_BROKEN);
+  do_check_false(isExtensionInAddonsList(profileDir, ID));
+
+  addon.uninstall();
+  yield promiseRestartManager();
+  yield promiseShutdownManager();
+
+  do_check_false(file.exists());
+  clearCache(file);
+});
+
+// Installs a signed add-on then modifies it in place breaking its signing
+add_task(function*() {
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.nonbootstrap.signed), profileDir, ID);
+
+  // Make it appear to come from the past so when we modify it later it is
+  // detected during startup. Obviously malware can bypass this method of
+  // detection but the periodic scan will catch that
+  yield promiseSetExtensionModifiedTime(file.path, Date.now() - 60000);
+
+  startupManager();
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_SIGNED);
+  do_check_true(isExtensionInAddonsList(profileDir, ID));
+
+  yield promiseShutdownManager();
+
+  clearCache(file);
+  breakAddon(file);
+
+  startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_BROKEN);
+  do_check_false(isExtensionInAddonsList(profileDir, ID));
+
+  let ids = AddonManager.getStartupChanges(AddonManager.STARTUP_CHANGE_DISABLED);
+  do_check_eq(ids.length, 1);
+  do_check_eq(ids[0], ID);
+
+  addon.uninstall();
+  yield promiseRestartManager();
+  yield promiseShutdownManager();
+
+  do_check_false(file.exists());
+  clearCache(file);
+});
+
+// Stage install then modify before startup (non-bootstrap)
+add_task(function*() {
+  startupManager();
+  yield promiseInstallAllFiles([do_get_file(DATA + ADDONS.nonbootstrap.signed)]);
+  yield promiseShutdownManager();
+
+  let staged = profileDir.clone();
+  staged.append("staged");
+  staged.append(do_get_expected_addon_name(ID));
+  do_check_true(staged.exists());
+
+  breakAddon(staged);
+  startupManager();
+
+  // Should have refused to install the broken staged version
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon, null);
+
+  clearCache(staged);
+
+  yield promiseShutdownManager();
+});
+
+// Manufacture staged install (bootstrap)
+add_task(function*() {
+  let stage = profileDir.clone();
+  stage.append("staged");
+
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.bootstrap.signed), stage, ID);
+  breakAddon(file);
+
+  startupManager();
+
+  // Should have refused to install the broken staged version
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon, null);
+  do_check_eq(getActiveVersion(), -1);
+
+  do_check_false(file.exists());
+  clearCache(file);
+
+  yield promiseShutdownManager();
+  resetPrefs();
+});
+
+// Preliminarily-signed sideloaded add-ons should work
+add_task(function*() {
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.bootstrap.preliminary), profileDir, ID);
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_PRELIMINARY);
+  do_check_eq(getActiveVersion(), 2);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+  resetPrefs();
+
+  do_check_false(file.exists());
+  clearCache(file);
+});
+
+// Preliminarily-signed sideloaded add-ons should work via staged install
+add_task(function*() {
+  let stage = profileDir.clone();
+  stage.append("staged");
+
+  let file = manuallyInstall(do_get_file(DATA + ADDONS.bootstrap.preliminary), stage, ID);
+
+  startupManager();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_PRELIMINARY);
+  do_check_eq(getActiveVersion(), 2);
+
+  addon.uninstall();
+  yield promiseShutdownManager();
+  resetPrefs();
+
+  do_check_false(file.exists());
+  clearCache(file);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_signed_install.js b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_install.js
new file mode 100644
index 000000000..19b07ac16
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_install.js
@@ -0,0 +1,265 @@
+// Enable signature checks for these tests
+gUseRealCertChecks = true;
+// Disable update security
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+const DATA = "data/signing_checks/";
+const ADDONS = {
+  bootstrap: {
+    unsigned: "unsigned_bootstrap_2.xpi",
+    badid: "signed_bootstrap_badid_2.xpi",
+    preliminary: "preliminary_bootstrap_2.xpi",
+    signed: "signed_bootstrap_2.xpi",
+  },
+};
+const WORKING = "signed_bootstrap_1.xpi";
+const ID = "test@tests.mozilla.org";
+
+var gServer = createHttpServer(4444);
+
+// Creates an add-on with a broken signature by changing an existing file
+function createBrokenAddonModify(file) {
+  let brokenFile = gTmpD.clone();
+  brokenFile.append("broken.xpi");
+  file.copyTo(brokenFile.parent, brokenFile.leafName);
+
+  var stream = AM_Cc["@mozilla.org/io/string-input-stream;1"].
+               createInstance(AM_Ci.nsIStringInputStream);
+  stream.setData("FOOBAR", -1);
+  var zipW = AM_Cc["@mozilla.org/zipwriter;1"].
+             createInstance(AM_Ci.nsIZipWriter);
+  zipW.open(brokenFile, FileUtils.MODE_RDWR | FileUtils.MODE_APPEND);
+  zipW.removeEntry("test.txt", false);
+  zipW.addEntryStream("test.txt", 0, AM_Ci.nsIZipWriter.COMPRESSION_NONE,
+                      stream, false);
+  zipW.close();
+
+  return brokenFile;
+}
+
+// Creates an add-on with a broken signature by adding a new file
+function createBrokenAddonAdd(file) {
+  let brokenFile = gTmpD.clone();
+  brokenFile.append("broken.xpi");
+  file.copyTo(brokenFile.parent, brokenFile.leafName);
+
+  var stream = AM_Cc["@mozilla.org/io/string-input-stream;1"].
+               createInstance(AM_Ci.nsIStringInputStream);
+  stream.setData("FOOBAR", -1);
+  var zipW = AM_Cc["@mozilla.org/zipwriter;1"].
+             createInstance(AM_Ci.nsIZipWriter);
+  zipW.open(brokenFile, FileUtils.MODE_RDWR | FileUtils.MODE_APPEND);
+  zipW.addEntryStream("test2.txt", 0, AM_Ci.nsIZipWriter.COMPRESSION_NONE,
+                      stream, false);
+  zipW.close();
+
+  return brokenFile;
+}
+
+// Creates an add-on with a broken signature by removing an existing file
+function createBrokenAddonRemove(file) {
+  let brokenFile = gTmpD.clone();
+  brokenFile.append("broken.xpi");
+  file.copyTo(brokenFile.parent, brokenFile.leafName);
+
+  var stream = AM_Cc["@mozilla.org/io/string-input-stream;1"].
+               createInstance(AM_Ci.nsIStringInputStream);
+  stream.setData("FOOBAR", -1);
+  var zipW = AM_Cc["@mozilla.org/zipwriter;1"].
+             createInstance(AM_Ci.nsIZipWriter);
+  zipW.open(brokenFile, FileUtils.MODE_RDWR | FileUtils.MODE_APPEND);
+  zipW.removeEntry("test.txt", false);
+  zipW.close();
+
+  return brokenFile;
+}
+
+function createInstall(url) {
+  return new Promise(resolve => {
+    AddonManager.getInstallForURL(url, resolve, "application/x-xpinstall");
+  });
+}
+
+function serveUpdateRDF(leafName) {
+  gServer.registerPathHandler("/update.rdf", function(request, response) {
+    let updateData = {};
+    updateData[ID] = [{
+      version: "2.0",
+      targetApplications: [{
+        id: "xpcshell@tests.mozilla.org",
+        minVersion: "4",
+        maxVersion: "6",
+        updateLink: "http://localhost:4444/" + leafName
+      }]
+    }];
+
+    response.setStatusLine(request.httpVersion, 200, "OK");
+    response.write(createUpdateRDF(updateData));
+  });
+}
+
+
+function* test_install_broken(file, expectedError) {
+  gServer.registerFile("/" + file.leafName, file);
+
+  let install = yield createInstall("http://localhost:4444/" + file.leafName);
+  yield promiseCompleteAllInstalls([install]);
+
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+  do_check_eq(install.error, expectedError);
+  do_check_eq(install.addon, null);
+
+  gServer.registerFile("/" + file.leafName, null);
+}
+
+function* test_install_working(file, expectedSignedState) {
+  gServer.registerFile("/" + file.leafName, file);
+
+  let install = yield createInstall("http://localhost:4444/" + file.leafName);
+  yield promiseCompleteAllInstalls([install]);
+
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_neq(install.addon, null);
+  do_check_eq(install.addon.signedState, expectedSignedState);
+
+  gServer.registerFile("/" + file.leafName, null);
+
+  install.addon.uninstall();
+}
+
+function* test_update_broken(file, expectedError) {
+  // First install the older version
+  yield promiseInstallAllFiles([do_get_file(DATA + WORKING)]);
+
+  gServer.registerFile("/" + file.leafName, file);
+  serveUpdateRDF(file.leafName);
+
+  let addon = yield promiseAddonByID(ID);
+  let update = yield promiseFindAddonUpdates(addon);
+  let install = update.updateAvailable;
+  yield promiseCompleteAllInstalls([install]);
+
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+  do_check_eq(install.error, expectedError);
+  do_check_eq(install.addon, null);
+
+  gServer.registerFile("/" + file.leafName, null);
+  gServer.registerPathHandler("/update.rdf", null);
+
+  addon.uninstall();
+}
+
+function* test_update_working(file, expectedSignedState) {
+  // First install the older version
+  yield promiseInstallAllFiles([do_get_file(DATA + WORKING)]);
+
+  gServer.registerFile("/" + file.leafName, file);
+  serveUpdateRDF(file.leafName);
+
+  let addon = yield promiseAddonByID(ID);
+  let update = yield promiseFindAddonUpdates(addon);
+  let install = update.updateAvailable;
+  yield promiseCompleteAllInstalls([install]);
+
+  do_check_eq(install.state, AddonManager.STATE_INSTALLED);
+  do_check_neq(install.addon, null);
+  do_check_eq(install.addon.signedState, expectedSignedState);
+
+  gServer.registerFile("/" + file.leafName, null);
+  gServer.registerPathHandler("/update.rdf", null);
+
+  install.addon.uninstall();
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "4", "4");
+  startupManager();
+
+  run_next_test();
+}
+
+// Try to install a broken add-on
+add_task(function*() {
+  let file = createBrokenAddonModify(do_get_file(DATA + ADDONS.bootstrap.signed));
+  yield test_install_broken(file, AddonManager.ERROR_CORRUPT_FILE);
+  file.remove(true);
+});
+
+add_task(function*() {
+  let file = createBrokenAddonAdd(do_get_file(DATA + ADDONS.bootstrap.signed));
+  yield test_install_broken(file, AddonManager.ERROR_CORRUPT_FILE);
+  file.remove(true);
+});
+
+add_task(function*() {
+  let file = createBrokenAddonRemove(do_get_file(DATA + ADDONS.bootstrap.signed));
+  yield test_install_broken(file, AddonManager.ERROR_CORRUPT_FILE);
+  file.remove(true);
+});
+
+// Try to install an add-on with an incorrect ID
+add_task(function*() {
+  let file = do_get_file(DATA + ADDONS.bootstrap.badid);
+  yield test_install_broken(file, AddonManager.ERROR_CORRUPT_FILE);
+});
+
+// Try to install an unsigned add-on
+add_task(function*() {
+  let file = do_get_file(DATA + ADDONS.bootstrap.unsigned);
+  yield test_install_broken(file, AddonManager.ERROR_SIGNEDSTATE_REQUIRED);
+});
+
+// Try to install a preliminarily reviewed add-on
+add_task(function*() {
+  let file = do_get_file(DATA + ADDONS.bootstrap.preliminary);
+  yield test_install_working(file, AddonManager.SIGNEDSTATE_PRELIMINARY);
+});
+
+// Try to install a signed add-on
+add_task(function*() {
+  let file = do_get_file(DATA + ADDONS.bootstrap.signed);
+  yield test_install_working(file, AddonManager.SIGNEDSTATE_SIGNED);
+});
+
+// Try to update to a broken add-on
+add_task(function*() {
+  let file = createBrokenAddonModify(do_get_file(DATA + ADDONS.bootstrap.signed));
+  yield test_update_broken(file, AddonManager.ERROR_CORRUPT_FILE);
+  file.remove(true);
+});
+
+add_task(function*() {
+  let file = createBrokenAddonAdd(do_get_file(DATA + ADDONS.bootstrap.signed));
+  yield test_update_broken(file, AddonManager.ERROR_CORRUPT_FILE);
+  file.remove(true);
+});
+
+add_task(function*() {
+  let file = createBrokenAddonRemove(do_get_file(DATA + ADDONS.bootstrap.signed));
+  yield test_update_broken(file, AddonManager.ERROR_CORRUPT_FILE);
+  file.remove(true);
+});
+
+// Try to update to an add-on with an incorrect ID
+add_task(function*() {
+  let file = do_get_file(DATA + ADDONS.bootstrap.badid);
+  yield test_update_broken(file, AddonManager.ERROR_CORRUPT_FILE);
+});
+
+// Try to update to an unsigned add-on
+add_task(function*() {
+  let file = do_get_file(DATA + ADDONS.bootstrap.unsigned);
+  yield test_update_broken(file, AddonManager.ERROR_SIGNEDSTATE_REQUIRED);
+});
+
+// Try to update to a preliminarily reviewed add-on
+add_task(function*() {
+  let file = do_get_file(DATA + ADDONS.bootstrap.preliminary);
+  yield test_update_working(file, AddonManager.SIGNEDSTATE_PRELIMINARY);
+});
+
+// Try to update to a signed add-on
+add_task(function*() {
+  let file = do_get_file(DATA + ADDONS.bootstrap.signed);
+  yield test_update_working(file, AddonManager.SIGNEDSTATE_SIGNED);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_signed_long.js b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_long.js
new file mode 100644
index 000000000..b74d7804a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_long.js
@@ -0,0 +1,49 @@
+// Disable update security
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+gUseRealCertChecks = true;
+
+const DATA = "data/signing_checks/";
+
+const ID_63 = "123456789012345678901234567890123456789012345@tests.mozilla.org"
+const ID_64 = "1234567890123456789012345678901234567890123456@tests.mozilla.org"
+const ID_65 = "12345678901234567890123456789012345678901234568@tests.mozilla.org"
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+  startupManager();
+
+  run_next_test();
+}
+
+// Installs the cases that should be working
+add_task(function* test_working() {
+  yield promiseInstallAllFiles([do_get_file(DATA + "long_63_plain.xpi"),
+                                do_get_file(DATA + "long_64_plain.xpi"),
+                                do_get_file(DATA + "long_65_hash.xpi")]);
+
+  let addons = yield promiseAddonsByIDs([ID_63, ID_64, ID_65]);
+
+  for (let addon of addons) {
+    do_check_neq(addon, null);
+    do_check_true(addon.signedState > AddonManager.SIGNEDSTATE_MISSING);
+
+    addon.uninstall();
+  }
+});
+
+// Checks the cases that should be broken
+add_task(function* test_broken() {
+  function promiseInstallForFile(file) {
+    return new Promise(resolve => AddonManager.getInstallForFile(file, resolve));
+  }
+
+  let promises = [promiseInstallForFile(do_get_file(DATA + "long_63_hash.xpi")),
+                  promiseInstallForFile(do_get_file(DATA + "long_64_hash.xpi"))];
+  let installs = yield Promise.all(promises);
+
+  for (let install of installs) {
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOAD_FAILED);
+    do_check_eq(install.error, AddonManager.ERROR_CORRUPT_FILE);
+  }
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_signed_migrate.js b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_migrate.js
new file mode 100644
index 000000000..97e2ff79f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_migrate.js
@@ -0,0 +1,194 @@
+// Enable signature checks for these tests
+gUseRealCertChecks = true;
+// Disable update security
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+// Allow attempting to show the compatibility UI which should not happen
+Services.prefs.setBoolPref("extensions.showMismatchUI", true);
+
+const DATA = "data/signing_checks/";
+const ADDONS = {
+  bootstrap: {
+    unsigned: "unsigned_bootstrap_2.xpi",
+    badid: "signed_bootstrap_badid_2.xpi",
+    signed: "signed_bootstrap_2.xpi",
+  },
+  nonbootstrap: {
+    unsigned: "unsigned_nonbootstrap_2.xpi",
+    badid: "signed_nonbootstrap_badid_2.xpi",
+    signed: "signed_nonbootstrap_2.xpi",
+  }
+};
+const ID = "test@tests.mozilla.org";
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// Override the window watcher
+var WindowWatcher = {
+  sawAddon: false,
+
+  openWindow: function(parent, url, name, features, args) {
+    let ids = args.QueryInterface(AM_Ci.nsIVariant);
+    this.sawAddon = ids.indexOf(ID) >= 0;
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(AM_Ci.nsIWindowWatcher)
+        || iid.equals(AM_Ci.nsISupports))
+      return this;
+
+    throw Components.results.NS_ERROR_NO_INTERFACE;
+  }
+}
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+function resetPrefs() {
+  Services.prefs.setIntPref("bootstraptest.active_version", -1);
+  Services.prefs.setIntPref("bootstraptest.installed_version", -1);
+  Services.prefs.setIntPref("bootstraptest.startup_reason", -1);
+  Services.prefs.setIntPref("bootstraptest.shutdown_reason", -1);
+  Services.prefs.setIntPref("bootstraptest.install_reason", -1);
+  Services.prefs.setIntPref("bootstraptest.uninstall_reason", -1);
+  Services.prefs.setIntPref("bootstraptest.startup_oldversion", -1);
+  Services.prefs.setIntPref("bootstraptest.shutdown_newversion", -1);
+  Services.prefs.setIntPref("bootstraptest.install_oldversion", -1);
+  Services.prefs.setIntPref("bootstraptest.uninstall_newversion", -1);
+}
+
+function getActiveVersion() {
+  return Services.prefs.getIntPref("bootstraptest.active_version");
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "4", "4");
+
+  // Start and stop the manager to initialise everything in the profile before
+  // actual testing
+  startupManager();
+  shutdownManager();
+  resetPrefs();
+
+  run_next_test();
+}
+
+// Removes the signedState field from add-ons in the json database to make it
+// look like the database was written with an older version of the application
+function stripDB() {
+  let jData = loadJSON(gExtensionsJSON);
+  jData.schemaVersion--;
+
+  for (let addon of jData.addons)
+    delete addon.signedState;
+
+  saveJSON(jData, gExtensionsJSON);
+}
+
+function* test_breaking_migrate(addons, test, expectedSignedState) {
+  // Startup as the old version
+  gAppInfo.version = "4";
+  startupManager(true);
+
+  // Install the signed add-on
+  yield promiseInstallAllFiles([do_get_file(DATA + addons.signed)]);
+  // Restart to let non-restartless add-ons install fully
+  yield promiseRestartManager();
+  yield promiseShutdownManager();
+  resetPrefs();
+  stripDB();
+
+  // Now replace it with the version to test. Doing this so quickly shouldn't
+  // trigger the file modification code to detect the change by itself.
+  manuallyUninstall(profileDir, ID);
+  manuallyInstall(do_get_file(DATA + addons[test]), profileDir, ID);
+
+  // Update the application
+  gAppInfo.version = "5";
+  startupManager(true);
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, expectedSignedState);
+
+  // Add-on shouldn't be active
+  if (addons == ADDONS.bootstrap)
+    do_check_eq(getActiveVersion(), -1);
+  else
+    do_check_false(isExtensionInAddonsList(profileDir, ID));
+
+  // Should have flagged the change during startup
+  let changes = AddonManager.getStartupChanges(AddonManager.STARTUP_CHANGE_DISABLED);
+  do_check_eq(changes.length, 1);
+  do_check_eq(changes[0], ID);
+
+  // Shouldn't have checked for updates for the add-on
+  do_check_false(WindowWatcher.sawAddon);
+  WindowWatcher.sawAddon = false;
+
+  addon.uninstall();
+  // Restart to let non-restartless add-ons uninstall fully
+  yield promiseRestartManager();
+  yield shutdownManager();
+  resetPrefs();
+}
+
+function* test_working_migrate(addons, test, expectedSignedState) {
+  // Startup as the old version
+  gAppInfo.version = "4";
+  startupManager(true);
+
+  // Install the signed add-on
+  yield promiseInstallAllFiles([do_get_file(DATA + addons.signed)]);
+  // Restart to let non-restartless add-ons install fully
+  yield promiseRestartManager();
+  yield promiseShutdownManager();
+  resetPrefs();
+  stripDB();
+
+  // Now replace it with the version to test. Doing this so quickly shouldn't
+  // trigger the file modification code to detect the change by itself.
+  manuallyUninstall(profileDir, ID);
+  manuallyInstall(do_get_file(DATA + addons[test]), profileDir, ID);
+
+  // Update the application
+  gAppInfo.version = "5";
+  startupManager(true);
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.signedState, expectedSignedState);
+
+  if (addons == ADDONS.bootstrap)
+    do_check_eq(getActiveVersion(), 2);
+  else
+    do_check_true(isExtensionInAddonsList(profileDir, ID));
+
+  // Shouldn't have checked for updates for the add-on
+  do_check_false(WindowWatcher.sawAddon);
+  WindowWatcher.sawAddon = false;
+
+  addon.uninstall();
+  // Restart to let non-restartless add-ons uninstall fully
+  yield promiseRestartManager();
+  yield shutdownManager();
+  resetPrefs();
+}
+
+add_task(function*() {
+  yield test_breaking_migrate(ADDONS.bootstrap, "unsigned", AddonManager.SIGNEDSTATE_MISSING);
+  yield test_breaking_migrate(ADDONS.nonbootstrap, "unsigned", AddonManager.SIGNEDSTATE_MISSING);
+});
+
+add_task(function*() {
+  yield test_breaking_migrate(ADDONS.bootstrap, "badid", AddonManager.SIGNEDSTATE_BROKEN);
+  yield test_breaking_migrate(ADDONS.nonbootstrap, "badid", AddonManager.SIGNEDSTATE_BROKEN);
+});
+
+add_task(function*() {
+  yield test_working_migrate(ADDONS.bootstrap, "signed", AddonManager.SIGNEDSTATE_SIGNED);
+  yield test_working_migrate(ADDONS.nonbootstrap, "signed", AddonManager.SIGNEDSTATE_SIGNED);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_signed_multi.js b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_multi.js
new file mode 100644
index 000000000..01de29088
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_multi.js
@@ -0,0 +1,55 @@
+// Enable signature checks for these tests
+gUseRealCertChecks = true;
+// Disable update security
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+const DATA = "data/signing_checks/";
+
+// Each multi-package XPI contains one valid theme and one other add-on that
+// has the following error state:
+const ADDONS = {
+  "multi_signed.xpi": 0,
+  "multi_badid.xpi": AddonManager.ERROR_CORRUPT_FILE,
+  "multi_broken.xpi": AddonManager.ERROR_CORRUPT_FILE,
+  "multi_unsigned.xpi": AddonManager.ERROR_SIGNEDSTATE_REQUIRED,
+};
+
+function createInstall(filename) {
+  return new Promise(resolve => {
+    AddonManager.getInstallForFile(do_get_file(DATA + filename), resolve, "application/x-xpinstall");
+  });
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "4", "4");
+  startupManager();
+
+  run_next_test();
+}
+
+function* test_addon(filename) {
+  do_print("Testing " + filename);
+
+  let install = yield createInstall(filename);
+  do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+  do_check_eq(install.error, 0);
+
+  do_check_neq(install.linkedInstalls, null);
+  do_check_eq(install.linkedInstalls.length, 1);
+
+  let linked = install.linkedInstalls[0];
+  do_print(linked.state);
+  do_check_eq(linked.error, ADDONS[filename]);
+  if (linked.error == 0) {
+    do_check_eq(linked.state, AddonManager.STATE_DOWNLOADED);
+    linked.cancel();
+  }
+  else {
+    do_check_eq(linked.state, AddonManager.STATE_DOWNLOAD_FAILED);
+  }
+
+  install.cancel();
+}
+
+for (let filename of Object.keys(ADDONS))
+  add_task(test_addon.bind(null, filename));
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_signed_updatepref.js b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_updatepref.js
new file mode 100644
index 000000000..eb1bb78b3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_updatepref.js
@@ -0,0 +1,136 @@
+// Disable update security
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+gUseRealCertChecks = true;
+
+const DATA = "data/signing_checks/";
+const ID = "test@tests.mozilla.org";
+
+Components.utils.import("resource://testing-common/httpd.js");
+var gServer = new HttpServer();
+gServer.start();
+
+gServer.registerPathHandler("/update.rdf", function(request, response) {
+  let updateData = {};
+  updateData[ID] = [{
+    version: "2.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "4",
+      maxVersion: "6"
+    }]
+  }];
+
+  response.setStatusLine(request.httpVersion, 200, "OK");
+  response.write(createUpdateRDF(updateData));
+});
+
+const SERVER = "127.0.0.1:" + gServer.identity.primaryPort;
+Services.prefs.setCharPref("extensions.update.background.url", "http://" + SERVER + "/update.rdf");
+
+function verifySignatures() {
+  return new Promise(resolve => {
+    let observer = (subject, topic, data) => {
+      Services.obs.removeObserver(observer, "xpi-signature-changed");
+      resolve(JSON.parse(data));
+    }
+    Services.obs.addObserver(observer, "xpi-signature-changed", false);
+
+    do_print("Verifying signatures");
+    let XPIscope = Components.utils.import("resource://gre/modules/addons/XPIProvider.jsm");
+    XPIscope.XPIProvider.verifySignatures();
+  });
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "4", "4");
+
+  // Start and stop the manager to initialise everything in the profile before
+  // actual testing
+  startupManager();
+  shutdownManager();
+
+  run_next_test();
+}
+
+// Updating the pref without changing the app version won't disable add-ons
+// immediately but will after a signing check
+add_task(function*() {
+  Services.prefs.setBoolPref(PREF_XPI_SIGNATURES_REQUIRED, false);
+  startupManager();
+
+  // Install the signed add-on
+  yield promiseInstallAllFiles([do_get_file(DATA + "unsigned_bootstrap_2.xpi")]);
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_MISSING);
+
+  yield promiseShutdownManager();
+
+  Services.prefs.setBoolPref(PREF_XPI_SIGNATURES_REQUIRED, true);
+
+  startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_MISSING);
+
+  // Update checks shouldn't affect the add-on
+  yield AddonManagerInternal.backgroundUpdateCheck();
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_MISSING);
+
+  let changes = yield verifySignatures();
+
+  do_check_eq(changes.disabled.length, 1);
+  do_check_eq(changes.disabled[0], ID);
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_MISSING);
+
+  addon.uninstall();
+
+  yield promiseShutdownManager();
+});
+
+// Updating the pref with changing the app version will disable add-ons
+// immediately
+add_task(function*() {
+  Services.prefs.setBoolPref(PREF_XPI_SIGNATURES_REQUIRED, false);
+  startupManager();
+
+  // Install the signed add-on
+  yield promiseInstallAllFiles([do_get_file(DATA + "unsigned_bootstrap_2.xpi")]);
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_MISSING);
+
+  yield promiseShutdownManager();
+
+  Services.prefs.setBoolPref(PREF_XPI_SIGNATURES_REQUIRED, true);
+  gAppInfo.version = 5.0
+  startupManager(true);
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_true(addon.appDisabled);
+  do_check_false(addon.isActive);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_MISSING);
+
+  addon.uninstall();
+
+  yield promiseShutdownManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_signed_verify.js b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_verify.js
new file mode 100644
index 000000000..0b5b30d89
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_signed_verify.js
@@ -0,0 +1,234 @@
+// Enable signature checks for these tests
+gUseRealCertChecks = true;
+// Disable update security
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+const DATA = "data/signing_checks/";
+const GOOD = [
+  ["signed_bootstrap_2.xpi", AddonManager.SIGNEDSTATE_SIGNED],
+  ["signed_nonbootstrap_2.xpi", AddonManager.SIGNEDSTATE_SIGNED]
+];
+const BAD = [
+  ["unsigned_bootstrap_2.xpi", AddonManager.SIGNEDSTATE_MISSING],
+  ["signed_bootstrap_badid_2.xpi", AddonManager.SIGNEDSTATE_BROKEN],
+  ["unsigned_nonbootstrap_2.xpi", AddonManager.SIGNEDSTATE_MISSING],
+  ["signed_nonbootstrap_badid_2.xpi", AddonManager.SIGNEDSTATE_BROKEN],
+];
+const ID = "test@tests.mozilla.org";
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function verifySignatures() {
+  return new Promise(resolve => {
+    let observer = (subject, topic, data) => {
+      Services.obs.removeObserver(observer, "xpi-signature-changed");
+      resolve(JSON.parse(data));
+    }
+    Services.obs.addObserver(observer, "xpi-signature-changed", false);
+
+    do_print("Verifying signatures");
+    let XPIscope = Components.utils.import("resource://gre/modules/addons/XPIProvider.jsm");
+    XPIscope.XPIProvider.verifySignatures();
+  });
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "4", "4");
+
+  run_next_test();
+}
+
+function verify_no_change([startFile, startState], [endFile, endState]) {
+  add_task(function*() {
+    do_print("A switch from " + startFile + " to " + endFile + " should cause no change.");
+
+    // Install the first add-on
+    manuallyInstall(do_get_file(DATA + startFile), profileDir, ID);
+    startupManager();
+
+    let addon = yield promiseAddonByID(ID);
+    do_check_neq(addon, null);
+    let wasAppDisabled = addon.appDisabled;
+    do_check_neq(addon.appDisabled, addon.isActive);
+    do_check_eq(addon.pendingOperations, AddonManager.PENDING_NONE);
+    do_check_eq(addon.signedState, startState);
+
+    // Swap in the files from the next add-on
+    manuallyUninstall(profileDir, ID);
+    manuallyInstall(do_get_file(DATA + endFile), profileDir, ID);
+
+    let events = {
+      [ID]: []
+    };
+
+    if (startState != endState)
+      events[ID].unshift(["onPropertyChanged", ["signedState"]]);
+
+    prepare_test(events);
+
+    // Trigger the check
+    let changes = yield verifySignatures();
+    do_check_eq(changes.enabled.length, 0);
+    do_check_eq(changes.disabled.length, 0);
+
+    do_check_eq(addon.appDisabled, wasAppDisabled);
+    do_check_neq(addon.appDisabled, addon.isActive);
+    do_check_eq(addon.pendingOperations, AddonManager.PENDING_NONE);
+    do_check_eq(addon.signedState, endState);
+
+    // Remove the add-on and restart to let it go away
+    manuallyUninstall(profileDir, ID);
+    yield promiseRestartManager();
+    yield promiseShutdownManager();
+  });
+}
+
+function verify_enables([startFile, startState], [endFile, endState]) {
+  add_task(function*() {
+    do_print("A switch from " + startFile + " to " + endFile + " should enable the add-on.");
+
+    // Install the first add-on
+    manuallyInstall(do_get_file(DATA + startFile), profileDir, ID);
+    startupManager();
+
+    let addon = yield promiseAddonByID(ID);
+    do_check_neq(addon, null);
+    do_check_false(addon.isActive);
+    do_check_eq(addon.pendingOperations, AddonManager.PENDING_NONE);
+    do_check_eq(addon.signedState, startState);
+
+    // Swap in the files from the next add-on
+    manuallyUninstall(profileDir, ID);
+    manuallyInstall(do_get_file(DATA + endFile), profileDir, ID);
+
+    let needsRestart = hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_ENABLE);
+    do_print(needsRestart);
+
+    let events = {};
+    if (!needsRestart) {
+      events[ID] = [
+        ["onPropertyChanged", ["appDisabled"]],
+        ["onEnabling", false],
+        "onEnabled"
+      ];
+    }
+    else {
+      events[ID] = [
+        ["onPropertyChanged", ["appDisabled"]],
+        "onEnabling"
+      ];
+    }
+
+    if (startState != endState)
+      events[ID].unshift(["onPropertyChanged", ["signedState"]]);
+
+    prepare_test(events);
+
+    // Trigger the check
+    let changes = yield verifySignatures();
+    do_check_eq(changes.enabled.length, 1);
+    do_check_eq(changes.enabled[0], ID);
+    do_check_eq(changes.disabled.length, 0);
+
+    do_check_false(addon.appDisabled);
+    if (needsRestart)
+      do_check_neq(addon.pendingOperations, AddonManager.PENDING_NONE);
+    else
+      do_check_true(addon.isActive);
+    do_check_eq(addon.signedState, endState);
+
+    ensure_test_completed();
+
+    // Remove the add-on and restart to let it go away
+    manuallyUninstall(profileDir, ID);
+    yield promiseRestartManager();
+    yield promiseShutdownManager();
+  });
+}
+
+function verify_disables([startFile, startState], [endFile, endState]) {
+  add_task(function*() {
+    do_print("A switch from " + startFile + " to " + endFile + " should disable the add-on.");
+
+    // Install the first add-on
+    manuallyInstall(do_get_file(DATA + startFile), profileDir, ID);
+    startupManager();
+
+    let addon = yield promiseAddonByID(ID);
+    do_check_neq(addon, null);
+    do_check_true(addon.isActive);
+    do_check_eq(addon.pendingOperations, AddonManager.PENDING_NONE);
+    do_check_eq(addon.signedState, startState);
+
+    let needsRestart = hasFlag(addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_DISABLE);
+
+    // Swap in the files from the next add-on
+    manuallyUninstall(profileDir, ID);
+    manuallyInstall(do_get_file(DATA + endFile), profileDir, ID);
+
+    let events = {};
+    if (!needsRestart) {
+      events[ID] = [
+        ["onPropertyChanged", ["appDisabled"]],
+        ["onDisabling", false],
+        "onDisabled"
+      ];
+    }
+    else {
+      events[ID] = [
+        ["onPropertyChanged", ["appDisabled"]],
+        "onDisabling"
+      ];
+    }
+
+    if (startState != endState)
+      events[ID].unshift(["onPropertyChanged", ["signedState"]]);
+
+    prepare_test(events);
+
+    // Trigger the check
+    let changes = yield verifySignatures();
+    do_check_eq(changes.enabled.length, 0);
+    do_check_eq(changes.disabled.length, 1);
+    do_check_eq(changes.disabled[0], ID);
+
+    do_check_true(addon.appDisabled);
+    if (needsRestart)
+      do_check_neq(addon.pendingOperations, AddonManager.PENDING_NONE);
+    else
+      do_check_false(addon.isActive);
+    do_check_eq(addon.signedState, endState);
+
+    ensure_test_completed();
+
+    // Remove the add-on and restart to let it go away
+    manuallyUninstall(profileDir, ID);
+    yield promiseRestartManager();
+    yield promiseShutdownManager();
+  });
+}
+
+for (let start of GOOD) {
+  for (let end of BAD) {
+    verify_disables(start, end);
+  }
+}
+
+for (let start of BAD) {
+  for (let end of GOOD) {
+    verify_enables(start, end);
+  }
+}
+
+for (let start of GOOD) {
+  for (let end of GOOD.filter(f => f != start)) {
+    verify_no_change(start, end);
+  }
+}
+
+for (let start of BAD) {
+  for (let end of BAD.filter(f => f != start)) {
+    verify_no_change(start, end);
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_softblocked.js b/toolkit/mozapps/webextensions/test/xpcshell/test_softblocked.js
new file mode 100644
index 000000000..260b536e1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_softblocked.js
@@ -0,0 +1,109 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const { utils: Cu, interfaces: Ci, classes: Cc, results: Cr } = Components;
+
+const URI_EXTENSION_BLOCKLIST_DIALOG = "chrome://mozapps/content/extensions/blocklist.xul";
+
+Cu.import("resource://gre/modules/NetUtil.jsm");
+Cu.import("resource://testing-common/MockRegistrar.jsm");
+
+// Allow insecure updates
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false)
+
+const testserver = createHttpServer();
+gPort = testserver.identity.primaryPort;
+testserver.registerDirectory("/data/", do_get_file("data"));
+
+// Don't need the full interface, attempts to call other methods will just
+// throw which is just fine
+var WindowWatcher = {
+  openWindow: function(parent, url, name, features, openArgs) {
+    // Should be called to list the newly blocklisted items
+    do_check_eq(url, URI_EXTENSION_BLOCKLIST_DIALOG);
+
+    // Simulate auto-disabling any softblocks
+    var list = openArgs.wrappedJSObject.list;
+    list.forEach(function(aItem) {
+      if (!aItem.blocked)
+        aItem.disable = true;
+    });
+
+    // run the code after the blocklist is closed
+    Services.obs.notifyObservers(null, "addon-blocklist-closed", null);
+  },
+
+  QueryInterface: function(iid) {
+    if (iid.equals(Ci.nsIWindowWatcher)
+     || iid.equals(Ci.nsISupports))
+      return this;
+
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+MockRegistrar.register("@mozilla.org/embedcomp/window-watcher;1", WindowWatcher);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function load_blocklist(aFile) {
+  return new Promise((resolve, reject) => {
+    Services.obs.addObserver(function() {
+      Services.obs.removeObserver(arguments.callee, "blocklist-updated");
+
+      resolve();
+    }, "blocklist-updated", false);
+
+    Services.prefs.setCharPref("extensions.blocklist.url", `http://localhost:${gPort}/data/${aFile}`);
+    var blocklist = Cc["@mozilla.org/extensions/blocklist;1"].
+                    getService(Ci.nsITimerCallback);
+    blocklist.notify(null);
+  });
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+  run_next_test();
+}
+
+// Tests that an appDisabled add-on that becomes softBlocked remains disabled
+// when becoming appEnabled
+add_task(function* () {
+  writeInstallRDFForExtension({
+    id: "softblock1@tests.mozilla.org",
+    version: "1.0",
+    name: "Softblocked add-on",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "2",
+      maxVersion: "3"
+    }]
+  }, profileDir);
+
+  startupManager();
+
+  let s1 = yield promiseAddonByID("softblock1@tests.mozilla.org");
+
+  // Make sure to mark it as previously enabled.
+  s1.userDisabled = false;
+
+  do_check_false(s1.softDisabled);
+  do_check_true(s1.appDisabled);
+  do_check_false(s1.isActive);
+
+  yield load_blocklist("test_softblocked1.xml");
+
+  do_check_true(s1.softDisabled);
+  do_check_true(s1.appDisabled);
+  do_check_false(s1.isActive);
+
+  yield promiseRestartManager("2");
+
+  s1 = yield promiseAddonByID("softblock1@tests.mozilla.org");
+
+  do_check_true(s1.softDisabled);
+  do_check_false(s1.appDisabled);
+  do_check_false(s1.isActive);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_sourceURI.js b/toolkit/mozapps/webextensions/test/xpcshell/test_sourceURI.js
new file mode 100644
index 000000000..db5e4f7cc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_sourceURI.js
@@ -0,0 +1,66 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://testing-common/httpd.js");
+var gServer = new HttpServer();
+gServer.start(-1);
+
+const PREF_GETADDONS_CACHE_ENABLED       = "extensions.getAddons.cache.enabled";
+
+const PORT          = gServer.identity.primaryPort;
+const BASE_URL      = "http://localhost:" + PORT;
+const DEFAULT_URL   = "about:blank";
+
+var addon = {
+  id: "addon@tests.mozilla.org",
+  version: "1.0",
+  name: "Test",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function backgroundUpdate(aCallback) {
+  Services.obs.addObserver(function() {
+    Services.obs.removeObserver(arguments.callee, "addons-background-update-complete");
+    aCallback();
+  }, "addons-background-update-complete", false);
+
+  AddonManagerPrivate.backgroundUpdateCheck();
+}
+
+function run_test() {
+  do_test_pending();
+
+  mapUrlToFile("/cache.xml", do_get_file("data/test_sourceURI.xml"), gServer);
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS, BASE_URL + "/cache.xml");
+  Services.prefs.setCharPref(PREF_GETADDONS_BYIDS_PERFORMANCE, BASE_URL + "/cache.xml");
+  Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+  writeInstallRDFForExtension(addon, profileDir);
+  startupManager();
+
+  AddonManager.getAddonByID("addon@tests.mozilla.org", function(a) {
+    do_check_neq(a, null);
+    do_check_eq(a.sourceURI, null);
+
+    backgroundUpdate(function() {
+      restartManager();
+
+      AddonManager.getAddonByID("addon@tests.mozilla.org", function(a2) {
+        do_check_neq(a2, null);
+        do_check_neq(a2.sourceURI, null);
+        do_check_eq(a2.sourceURI.spec, "http://www.example.com/testaddon.xpi");
+
+        do_test_finished();
+      });
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_startup.js b/toolkit/mozapps/webextensions/test/xpcshell/test_startup.js
new file mode 100644
index 000000000..fdd00c1ad
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_startup.js
@@ -0,0 +1,932 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies startup detection of added/removed/changed items and install
+// location priorities
+
+// Enable loading extensions from the user and system scopes
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE + AddonManager.SCOPE_USER +
+                          AddonManager.SCOPE_SYSTEM);
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }, {                 // Repeated target application entries should be ignored
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "2",
+    maxVersion: "2"
+  }]
+};
+
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "2.0",
+  name: "Test 2",
+  targetApplications: [{  // Bad target application entries should be ignored
+    minVersion: "3",
+    maxVersion: "4"
+  }, {
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "2"
+  }]
+};
+
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "3.0",
+  name: "Test 3",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1.9.2",
+    maxVersion: "1.9.2.*"
+  }]
+};
+
+// Should be ignored because it has no ID
+var addon4 = {
+  version: "4.0",
+  name: "Test 4",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Should be ignored because it has no version
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Should be ignored because it has an invalid type
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "3.0",
+  name: "Test 6",
+  type: 5,
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1.9.2",
+    maxVersion: "1.9.2.*"
+  }]
+};
+
+// Should be ignored because it has an invalid type
+var addon7 = {
+  id: "addon7@tests.mozilla.org",
+  version: "3.0",
+  name: "Test 3",
+  type: "extension",
+  targetApplications: [{
+    id: "toolkit@mozilla.org",
+    minVersion: "1.9.2",
+    maxVersion: "1.9.2.*"
+  }]
+};
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const globalDir = gProfD.clone();
+globalDir.append("extensions2");
+globalDir.append(gAppInfo.ID);
+registerDirectory("XRESysSExtPD", globalDir.parent);
+const userDir = gProfD.clone();
+userDir.append("extensions3");
+userDir.append(gAppInfo.ID);
+registerDirectory("XREUSysExt", userDir.parent);
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+var gCachePurged = false;
+
+// Set up the profile
+function run_test() {
+  do_test_pending("test_startup main");
+
+  let obs = AM_Cc["@mozilla.org/observer-service;1"].
+    getService(AM_Ci.nsIObserverService);
+  obs.addObserver({
+    observe: function(aSubject, aTopic, aData) {
+      gCachePurged = true;
+    }
+  }, "startupcache-invalidate", false);
+
+  startupManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+
+  do_check_false(gExtensionsJSON.exists());
+
+  do_check_false(gExtensionsINI.exists());
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5, a6, a7]) {
+
+    do_check_eq(a1, null);
+    do_check_not_in_crash_annotation(addon1.id, addon1.version);
+    do_check_eq(a2, null);
+    do_check_not_in_crash_annotation(addon2.id, addon2.version);
+    do_check_eq(a3, null);
+    do_check_not_in_crash_annotation(addon3.id, addon3.version);
+    do_check_eq(a4, null);
+    do_check_eq(a5, null);
+
+    do_execute_soon(run_test_1);
+  });
+}
+
+function end_test() {
+  do_test_finished("test_startup main");
+}
+
+// Try to install all the items into the profile
+function run_test_1() {
+  writeInstallRDFForExtension(addon1, profileDir);
+  var dest = writeInstallRDFForExtension(addon2, profileDir);
+  // Attempt to make this look like it was added some time in the past so
+  // the change in run_test_2 makes the last modified time change.
+  setExtensionModifiedTime(dest, dest.lastModifiedTime - 5000);
+
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir, "addon4@tests.mozilla.org");
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(addon7, profileDir);
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, ["addon1@tests.mozilla.org",
+                                      "addon2@tests.mozilla.org",
+                                      "addon3@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  do_print("Checking for " + gExtensionsINI.path);
+  do_check_true(gExtensionsINI.exists());
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5, a6, a7]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.id, "addon1@tests.mozilla.org");
+    do_check_neq(a1.syncGUID, null);
+    do_check_true(a1.syncGUID.length >= 9);
+    do_check_eq(a1.version, "1.0");
+    do_check_eq(a1.name, "Test 1");
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon1.id, addon1.version);
+    do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+    do_check_eq(a1.sourceURI, null);
+    do_check_true(a1.foreignInstall);
+    do_check_false(a1.userDisabled);
+    do_check_true(a1.seen);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.id, "addon2@tests.mozilla.org");
+    do_check_neq(a2.syncGUID, null);
+    do_check_true(a2.syncGUID.length >= 9);
+    do_check_eq(a2.version, "2.0");
+    do_check_eq(a2.name, "Test 2");
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_true(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_true(hasFlag(a2.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon2.id, addon2.version);
+    do_check_eq(a2.scope, AddonManager.SCOPE_PROFILE);
+    do_check_eq(a2.sourceURI, null);
+    do_check_true(a2.foreignInstall);
+    do_check_false(a1.userDisabled);
+    do_check_true(a1.seen);
+
+    do_check_neq(a3, null);
+    do_check_eq(a3.id, "addon3@tests.mozilla.org");
+    do_check_neq(a3.syncGUID, null);
+    do_check_true(a3.syncGUID.length >= 9);
+    do_check_eq(a3.version, "3.0");
+    do_check_eq(a3.name, "Test 3");
+    do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+    do_check_true(hasFlag(a3.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_true(hasFlag(a3.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon3.id, addon3.version);
+    do_check_eq(a3.scope, AddonManager.SCOPE_PROFILE);
+    do_check_eq(a3.sourceURI, null);
+    do_check_true(a3.foreignInstall);
+    do_check_false(a1.userDisabled);
+    do_check_true(a1.seen);
+
+    do_check_eq(a4, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon4@tests.mozilla.org"));
+    dest = profileDir.clone();
+    dest.append(do_get_expected_addon_name("addon4@tests.mozilla.org"));
+    do_check_false(dest.exists());
+
+    do_check_eq(a5, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon5@tests.mozilla.org"));
+    dest = profileDir.clone();
+    dest.append(do_get_expected_addon_name("addon5@tests.mozilla.org"));
+    do_check_false(dest.exists());
+
+    do_check_eq(a6, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon6@tests.mozilla.org"));
+    dest = profileDir.clone();
+    dest.append(do_get_expected_addon_name("addon6@tests.mozilla.org"));
+    do_check_false(dest.exists());
+
+    do_check_eq(a7, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon7@tests.mozilla.org"));
+    dest = profileDir.clone();
+    dest.append(do_get_expected_addon_name("addon7@tests.mozilla.org"));
+    do_check_false(dest.exists());
+
+    AddonManager.getAddonsByTypes(["extension"], function(extensionAddons) {
+      do_check_eq(extensionAddons.length, 3);
+
+      do_execute_soon(run_test_2);
+    });
+  });
+}
+
+// Test that modified items are detected and items in other install locations
+// are ignored
+function run_test_2() {
+  addon1.version = "1.1";
+  writeInstallRDFForExtension(addon1, userDir);
+  addon2.version="2.1";
+  writeInstallRDFForExtension(addon2, profileDir);
+  addon2.version="2.2";
+  writeInstallRDFForExtension(addon2, globalDir);
+  addon2.version="2.3";
+  writeInstallRDFForExtension(addon2, userDir);
+  var dest = profileDir.clone();
+  dest.append(do_get_expected_addon_name("addon3@tests.mozilla.org"));
+  dest.remove(true);
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, ["addon2@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, ["addon3@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  do_check_true(gExtensionsINI.exists());
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.id, "addon1@tests.mozilla.org");
+    do_check_eq(a1.version, "1.0");
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_false(isExtensionInAddonsList(userDir, a1.id));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon1.id, a1.version);
+    do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+    do_check_true(a1.foreignInstall);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.id, "addon2@tests.mozilla.org");
+    do_check_eq(a2.version, "2.1");
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_false(isExtensionInAddonsList(userDir, a2.id));
+    do_check_false(isExtensionInAddonsList(globalDir, a2.id));
+    do_check_true(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_true(hasFlag(a2.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon2.id, a2.version);
+    do_check_eq(a2.scope, AddonManager.SCOPE_PROFILE);
+    do_check_true(a2.foreignInstall);
+
+    do_check_eq(a3, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon3@tests.mozilla.org"));
+    do_check_not_in_crash_annotation(addon3.id, addon3.version);
+
+    do_check_eq(a4, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon4@tests.mozilla.org"));
+
+    do_check_eq(a5, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon5@tests.mozilla.org"));
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Check that removing items from the profile reveals their hidden versions.
+function run_test_3() {
+  var dest = profileDir.clone();
+  dest.append(do_get_expected_addon_name("addon1@tests.mozilla.org"));
+  dest.remove(true);
+  dest = profileDir.clone();
+  dest.append(do_get_expected_addon_name("addon2@tests.mozilla.org"));
+  dest.remove(true);
+  writeInstallRDFForExtension(addon3, profileDir, "addon4@tests.mozilla.org");
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, ["addon1@tests.mozilla.org",
+                                    "addon2@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.id, "addon1@tests.mozilla.org");
+    do_check_eq(a1.version, "1.1");
+    do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_true(isExtensionInAddonsList(userDir, a1.id));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon1.id, a1.version);
+    do_check_eq(a1.scope, AddonManager.SCOPE_USER);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.id, "addon2@tests.mozilla.org");
+    do_check_eq(a2.version, "2.3");
+    do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_true(isExtensionInAddonsList(userDir, a2.id));
+    do_check_false(isExtensionInAddonsList(globalDir, a2.id));
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon2.id, a2.version);
+    do_check_eq(a2.scope, AddonManager.SCOPE_USER);
+
+    do_check_eq(a3, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon3@tests.mozilla.org"));
+
+    do_check_eq(a4, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon4@tests.mozilla.org"));
+
+    do_check_eq(a5, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon5@tests.mozilla.org"));
+
+    dest = profileDir.clone();
+    dest.append(do_get_expected_addon_name("addon4@tests.mozilla.org"));
+    do_check_false(dest.exists());
+
+    do_execute_soon(run_test_4);
+  });
+}
+
+// Test that disabling an install location works
+function run_test_4() {
+  Services.prefs.setIntPref("extensions.enabledScopes", AddonManager.SCOPE_SYSTEM);
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, ["addon2@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, ["addon1@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_eq(a1, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon1@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(userDir, "addon1@tests.mozilla.org"));
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.id, "addon2@tests.mozilla.org");
+    do_check_eq(a2.version, "2.2");
+    do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_false(isExtensionInAddonsList(userDir, a2.id));
+    do_check_true(isExtensionInAddonsList(globalDir, a2.id));
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon2.id, a2.version);
+    do_check_eq(a2.scope, AddonManager.SCOPE_SYSTEM);
+
+    do_execute_soon(run_test_5);
+  });
+}
+
+// Switching disabled locations works
+function run_test_5() {
+  Services.prefs.setIntPref("extensions.enabledScopes", AddonManager.SCOPE_USER);
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, ["addon1@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, ["addon2@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.id, "addon1@tests.mozilla.org");
+    do_check_eq(a1.version, "1.1");
+    do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_true(isExtensionInAddonsList(userDir, a1.id));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon1.id, a1.version);
+    do_check_eq(a1.scope, AddonManager.SCOPE_USER);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.id, "addon2@tests.mozilla.org");
+    do_check_eq(a2.version, "2.3");
+    do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_true(isExtensionInAddonsList(userDir, a2.id));
+    do_check_false(isExtensionInAddonsList(globalDir, a2.id));
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon2.id, a2.version);
+    do_check_eq(a2.scope, AddonManager.SCOPE_USER);
+
+    do_execute_soon(run_test_6);
+  });
+}
+
+// Resetting the pref makes everything visible again
+function run_test_6() {
+  Services.prefs.clearUserPref("extensions.enabledScopes");
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.id, "addon1@tests.mozilla.org");
+    do_check_eq(a1.version, "1.1");
+    do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_true(isExtensionInAddonsList(userDir, a1.id));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon1.id, a1.version);
+    do_check_eq(a1.scope, AddonManager.SCOPE_USER);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.id, "addon2@tests.mozilla.org");
+    do_check_eq(a2.version, "2.3");
+    do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_true(isExtensionInAddonsList(userDir, a2.id));
+    do_check_false(isExtensionInAddonsList(globalDir, a2.id));
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon2.id, a2.version);
+    do_check_eq(a2.scope, AddonManager.SCOPE_USER);
+
+    do_execute_soon(run_test_7);
+  });
+}
+
+// Check that items in the profile hide the others again.
+function run_test_7() {
+  addon1.version = "1.2";
+  writeInstallRDFForExtension(addon1, profileDir);
+  var dest = userDir.clone();
+  dest.append(do_get_expected_addon_name("addon2@tests.mozilla.org"));
+  dest.remove(true);
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, ["addon1@tests.mozilla.org",
+                                    "addon2@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.id, "addon1@tests.mozilla.org");
+    do_check_eq(a1.version, "1.2");
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_false(isExtensionInAddonsList(userDir, a1.id));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon1.id, a1.version);
+    do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.id, "addon2@tests.mozilla.org");
+    do_check_eq(a2.version, "2.2");
+    do_check_false(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_false(isExtensionInAddonsList(userDir, a2.id));
+    do_check_true(isExtensionInAddonsList(globalDir, a2.id));
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_false(hasFlag(a2.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon2.id, a2.version);
+    do_check_eq(a2.scope, AddonManager.SCOPE_SYSTEM);
+
+    do_check_eq(a3, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon3@tests.mozilla.org"));
+
+    do_check_eq(a4, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon4@tests.mozilla.org"));
+
+    do_check_eq(a5, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon5@tests.mozilla.org"));
+
+    do_execute_soon(run_test_8);
+  });
+}
+
+// Disabling all locations still leaves the profile working
+function run_test_8() {
+  Services.prefs.setIntPref("extensions.enabledScopes", 0);
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, ["addon2@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.id, "addon1@tests.mozilla.org");
+    do_check_eq(a1.version, "1.2");
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_false(isExtensionInAddonsList(userDir, a1.id));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_in_crash_annotation(addon1.id, a1.version);
+    do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+
+    do_check_eq(a2, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon2@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(userDir, "addon2@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(globalDir, "addon2@tests.mozilla.org"));
+
+    do_execute_soon(run_test_9);
+  });
+}
+
+// More hiding and revealing
+function run_test_9() {
+  Services.prefs.clearUserPref("extensions.enabledScopes", 0);
+
+  var dest = userDir.clone();
+  dest.append(do_get_expected_addon_name("addon1@tests.mozilla.org"));
+  dest.remove(true);
+  dest = globalDir.clone();
+  dest.append(do_get_expected_addon_name("addon2@tests.mozilla.org"));
+  dest.remove(true);
+  addon2.version = "2.4";
+  writeInstallRDFForExtension(addon2, profileDir);
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, ["addon2@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.id, "addon1@tests.mozilla.org");
+    do_check_eq(a1.version, "1.2");
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_false(isExtensionInAddonsList(userDir, a1.id));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_true(hasFlag(a1.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_eq(a1.scope, AddonManager.SCOPE_PROFILE);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.id, "addon2@tests.mozilla.org");
+    do_check_eq(a2.version, "2.4");
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_false(isExtensionInAddonsList(userDir, a2.id));
+    do_check_false(isExtensionInAddonsList(globalDir, a2.id));
+    do_check_true(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_true(hasFlag(a2.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_eq(a2.scope, AddonManager.SCOPE_PROFILE);
+
+    do_check_eq(a3, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon3@tests.mozilla.org"));
+
+    do_check_eq(a4, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon4@tests.mozilla.org"));
+
+    do_check_eq(a5, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon5@tests.mozilla.org"));
+
+    do_execute_soon(run_test_10);
+  });
+}
+
+// Checks that a removal from one location and an addition in another location
+// for the same item is handled
+function run_test_10() {
+  var dest = profileDir.clone();
+  dest.append(do_get_expected_addon_name("addon1@tests.mozilla.org"));
+  dest.remove(true);
+  addon1.version = "1.3";
+  writeInstallRDFForExtension(addon1, userDir);
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, ["addon1@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_neq(a1, null);
+    do_check_eq(a1.id, "addon1@tests.mozilla.org");
+    do_check_eq(a1.version, "1.3");
+    do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_true(isExtensionInAddonsList(userDir, a1.id));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_false(hasFlag(a1.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_eq(a1.scope, AddonManager.SCOPE_USER);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.id, "addon2@tests.mozilla.org");
+    do_check_eq(a2.version, "2.4");
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_false(isExtensionInAddonsList(userDir, a2.id));
+    do_check_false(isExtensionInAddonsList(globalDir, a2.id));
+    do_check_true(hasFlag(a2.permissions, AddonManager.PERM_CAN_UNINSTALL));
+    do_check_true(hasFlag(a2.permissions, AddonManager.PERM_CAN_UPGRADE));
+    do_check_eq(a2.scope, AddonManager.SCOPE_PROFILE);
+
+    do_check_eq(a3, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon3@tests.mozilla.org"));
+
+    do_check_eq(a4, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon4@tests.mozilla.org"));
+
+    do_check_eq(a5, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon5@tests.mozilla.org"));
+
+    do_execute_soon(run_test_11);
+  });
+}
+
+// This should remove any remaining items
+function run_test_11() {
+  var dest = userDir.clone();
+  dest.append(do_get_expected_addon_name("addon1@tests.mozilla.org"));
+  dest.remove(true);
+  dest = profileDir.clone();
+  dest.append(do_get_expected_addon_name("addon2@tests.mozilla.org"));
+  dest.remove(true);
+
+  gCachePurged = false;
+  restartManager();
+  check_startup_changes(AddonManager.STARTUP_CHANGE_INSTALLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_CHANGED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_UNINSTALLED, ["addon1@tests.mozilla.org",
+                                        "addon2@tests.mozilla.org"]);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_DISABLED, []);
+  check_startup_changes(AddonManager.STARTUP_CHANGE_ENABLED, []);
+  do_check_true(gCachePurged);
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_eq(a1, null);
+    do_check_eq(a2, null);
+    do_check_eq(a3, null);
+    do_check_eq(a4, null);
+    do_check_eq(a5, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon1@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(profileDir, "addon2@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(profileDir, "addon3@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(profileDir, "addon4@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(profileDir, "addon5@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(userDir, "addon1@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(userDir, "addon2@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(userDir, "addon3@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(userDir, "addon4@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(userDir, "addon5@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(globalDir, "addon1@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(globalDir, "addon2@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(globalDir, "addon3@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(globalDir, "addon4@tests.mozilla.org"));
+    do_check_false(isExtensionInAddonsList(globalDir, "addon5@tests.mozilla.org"));
+    do_check_not_in_crash_annotation(addon1.id, addon1.version);
+    do_check_not_in_crash_annotation(addon2.id, addon2.version);
+
+    do_execute_soon(run_test_12);
+  });
+}
+
+// Test that auto-disabling for specific scopes works
+function run_test_12() {
+  Services.prefs.setIntPref("extensions.autoDisableScopes", AddonManager.SCOPE_USER);
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, userDir);
+  writeInstallRDFForExtension(addon3, globalDir);
+
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               callback_soon(function([a1, a2, a3, a4, a5]) {
+    do_check_neq(a1, null);
+    do_check_false(a1.userDisabled);
+    do_check_true(a1.seen);
+    do_check_true(a1.isActive);
+
+    do_check_neq(a2, null);
+    do_check_true(a2.userDisabled);
+    do_check_false(a2.seen);
+    do_check_false(a2.isActive);
+
+    do_check_neq(a3, null);
+    do_check_false(a3.userDisabled);
+    do_check_true(a3.seen);
+    do_check_true(a3.isActive);
+
+    var dest = profileDir.clone();
+    dest.append(do_get_expected_addon_name("addon1@tests.mozilla.org"));
+    dest.remove(true);
+    dest = userDir.clone();
+    dest.append(do_get_expected_addon_name("addon2@tests.mozilla.org"));
+    dest.remove(true);
+    dest = globalDir.clone();
+    dest.append(do_get_expected_addon_name("addon3@tests.mozilla.org"));
+    dest.remove(true);
+
+    restartManager();
+
+    Services.prefs.setIntPref("extensions.autoDisableScopes", AddonManager.SCOPE_SYSTEM);
+
+    writeInstallRDFForExtension(addon1, profileDir);
+    writeInstallRDFForExtension(addon2, userDir);
+    writeInstallRDFForExtension(addon3, globalDir);
+
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon2@tests.mozilla.org",
+                                 "addon3@tests.mozilla.org",
+                                 "addon4@tests.mozilla.org",
+                                 "addon5@tests.mozilla.org"],
+                                 function([a1_2, a2_2, a3_2, a4_2, a5_2]) {
+      do_check_neq(a1_2, null);
+      do_check_false(a1_2.userDisabled);
+      do_check_true(a1_2.seen);
+      do_check_true(a1_2.isActive);
+
+      do_check_neq(a2_2, null);
+      do_check_false(a2_2.userDisabled);
+      do_check_true(a2_2.seen);
+      do_check_true(a2_2.isActive);
+
+      do_check_neq(a3_2, null);
+      do_check_true(a3_2.userDisabled);
+      do_check_false(a3_2.seen);
+      do_check_false(a3_2.isActive);
+
+      var dest2 = profileDir.clone();
+      dest2.append(do_get_expected_addon_name("addon1@tests.mozilla.org"));
+      dest2.remove(true);
+      dest2 = userDir.clone();
+      dest2.append(do_get_expected_addon_name("addon2@tests.mozilla.org"));
+      dest2.remove(true);
+      dest2 = globalDir.clone();
+      dest2.append(do_get_expected_addon_name("addon3@tests.mozilla.org"));
+      dest2.remove(true);
+
+      restartManager();
+
+      Services.prefs.setIntPref("extensions.autoDisableScopes", AddonManager.SCOPE_USER + AddonManager.SCOPE_SYSTEM);
+
+      writeInstallRDFForExtension(addon1, profileDir);
+      writeInstallRDFForExtension(addon2, userDir);
+      writeInstallRDFForExtension(addon3, globalDir);
+
+      restartManager();
+
+      AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                   "addon2@tests.mozilla.org",
+                                   "addon3@tests.mozilla.org",
+                                   "addon4@tests.mozilla.org",
+                                   "addon5@tests.mozilla.org"],
+                                   function([a1_3, a2_3, a3_3, a4_3, a5_3]) {
+        do_check_neq(a1_3, null);
+        do_check_false(a1_3.userDisabled);
+        do_check_true(a1_3.seen);
+        do_check_true(a1_3.isActive);
+
+        do_check_neq(a2_3, null);
+        do_check_true(a2_3.userDisabled);
+        do_check_false(a2_3.seen);
+        do_check_false(a2_3.isActive);
+
+        do_check_neq(a3_3, null);
+        do_check_true(a3_3.userDisabled);
+        do_check_false(a3_3.seen);
+        do_check_false(a3_3.isActive);
+
+        do_execute_soon(end_test);
+      });
+    });
+  }));
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_strictcompatibility.js b/toolkit/mozapps/webextensions/test/xpcshell/test_strictcompatibility.js
new file mode 100644
index 000000000..cb6704936
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_strictcompatibility.js
@@ -0,0 +1,203 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests AddonManager.strictCompatibility and it's related preference,
+// extensions.strictCompatibility, and the strictCompatibility option in
+// install.rdf
+
+
+// Always compatible
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Incompatible in strict compatibility mode
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0.7",
+    maxVersion: "0.8"
+  }]
+};
+
+// Theme - always uses strict compatibility, so is always incompatible
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 3",
+  internalName: "test-theme-3",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0.8",
+    maxVersion: "0.9"
+  }]
+};
+
+// Opt-in to strict compatibility - always incompatible
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 4",
+  strictCompatibility: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0.8",
+    maxVersion: "0.9"
+  }]
+};
+
+// Addon from the future - would be marked as compatibile-by-default,
+// but minVersion is higher than the app version
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 5",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "3",
+    maxVersion: "5"
+  }]
+};
+
+// Extremely old addon - maxVersion is less than the mimimum compat version
+// set in extensions.minCompatibleVersion
+var addon6 = {
+  id: "addon6@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 6",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0.1",
+    maxVersion: "0.2"
+  }]
+};
+
+// Dictionary - incompatible in strict compatibility mode
+var addon7= {
+  id: "addon7@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 7",
+  type: "64",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "0.8",
+    maxVersion: "0.9"
+  }]
+};
+
+
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+
+function do_check_compat_status(aStrict, aAddonCompat, aCallback) {
+  do_check_eq(AddonManager.strictCompatibility, aStrict);
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org",
+                               "addon6@tests.mozilla.org",
+                               "addon7@tests.mozilla.org"],
+                              function([a1, a2, a3, a4, a5, a6, a7]) {
+    do_check_neq(a1, null);
+    do_check_eq(a1.isCompatible, aAddonCompat[0]);
+    do_check_eq(a1.appDisabled, !aAddonCompat[0]);
+    do_check_false(a1.strictCompatibility);
+
+    do_check_neq(a2, null);
+    do_check_eq(a2.isCompatible, aAddonCompat[1]);
+    do_check_eq(a2.appDisabled, !aAddonCompat[1]);
+    do_check_false(a2.strictCompatibility);
+
+    do_check_neq(a3, null);
+    do_check_eq(a3.isCompatible, aAddonCompat[2]);
+    do_check_eq(a3.appDisabled, !aAddonCompat[2]);
+    do_check_true(a3.strictCompatibility);
+
+    do_check_neq(a4, null);
+    do_check_eq(a4.isCompatible, aAddonCompat[3]);
+    do_check_eq(a4.appDisabled, !aAddonCompat[3]);
+    do_check_true(a4.strictCompatibility);
+
+    do_check_neq(a5, null);
+    do_check_eq(a5.isCompatible, aAddonCompat[4]);
+    do_check_eq(a5.appDisabled, !aAddonCompat[4]);
+    do_check_false(a5.strictCompatibility);
+
+    do_check_neq(a6, null);
+    do_check_eq(a6.isCompatible, aAddonCompat[5]);
+    do_check_eq(a6.appDisabled, !aAddonCompat[5]);
+    do_check_false(a6.strictCompatibility);
+
+    do_check_neq(a7, null);
+    do_check_eq(a7.isCompatible, aAddonCompat[6]);
+    do_check_eq(a7.appDisabled, !aAddonCompat[6]);
+    do_check_false(a7.strictCompatibility);
+
+    do_execute_soon(aCallback);
+  });
+}
+
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+  writeInstallRDFForExtension(addon6, profileDir);
+  writeInstallRDFForExtension(addon7, profileDir);
+
+  Services.prefs.setCharPref(PREF_EM_MIN_COMPAT_APP_VERSION, "0.1");
+
+  startupManager();
+
+  // Should default to enabling strict compat.
+  do_check_compat_status(true, [true, false, false, false, false, false, false], run_test_1);
+}
+
+function run_test_1() {
+  do_print("Test 1");
+  Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+  do_check_compat_status(false, [true, true, false, false, false, true, true], run_test_2);
+}
+
+function run_test_2() {
+  do_print("Test 2");
+  restartManager();
+  do_check_compat_status(false, [true, true, false, false, false, true, true], run_test_3);
+}
+
+function run_test_3() {
+  do_print("Test 3");
+  Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, true);
+  do_check_compat_status(true, [true, false, false, false, false, false, false], run_test_4);
+}
+
+function run_test_4() {
+  do_print("Test 4");
+  restartManager();
+  do_check_compat_status(true, [true, false, false, false, false, false, false], run_test_5);
+}
+
+function run_test_5() {
+  do_print("Test 5");
+  Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+  Services.prefs.setCharPref(PREF_EM_MIN_COMPAT_APP_VERSION, "0.4");
+  do_check_compat_status(false, [true, true, false, false, false, false, true], do_test_finished);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_switch_os.js b/toolkit/mozapps/webextensions/test/xpcshell/test_switch_os.js
new file mode 100644
index 000000000..552d7cfae
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_switch_os.js
@@ -0,0 +1,52 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/AppConstants.jsm");
+
+const ID = "bootstrap1@tests.mozilla.org";
+
+BootstrapMonitor.init();
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+add_task(function*() {
+  startupManager();
+
+  let install = yield new Promise(resolve => AddonManager.getInstallForFile(do_get_addon("test_bootstrap1_1"), resolve));
+  yield promiseCompleteAllInstalls([install]);
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  BootstrapMonitor.checkAddonStarted(ID);
+  do_check_false(addon.userDisabled);
+  do_check_true(addon.isActive);
+
+  yield promiseShutdownManager();
+
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  let jData = loadJSON(gExtensionsJSON);
+
+  for (let addonInstance of jData.addons) {
+    if (addonInstance.id == ID) {
+      // Set to something that would be an invalid descriptor for this platform
+      addonInstance.descriptor = AppConstants.platform == "win" ? "/foo/bar" : "C:\\foo\\bar";
+    }
+  }
+
+  saveJSON(jData, gExtensionsJSON);
+
+  startupManager();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  BootstrapMonitor.checkAddonStarted(ID);
+  do_check_false(addon.userDisabled);
+  do_check_true(addon.isActive);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_syncGUID.js b/toolkit/mozapps/webextensions/test/xpcshell/test_syncGUID.js
new file mode 100644
index 000000000..385f58405
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_syncGUID.js
@@ -0,0 +1,156 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+// restartManager() mucks with XPIProvider.jsm importing, so we hack around.
+this.__defineGetter__("XPIProvider", function () {
+  let scope = {};
+  return Components.utils.import("resource://gre/modules/addons/XPIProvider.jsm", scope)
+                   .XPIProvider;
+});
+
+const addonId = "addon1@tests.mozilla.org";
+
+function run_test() {
+  Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9");
+  startupManager();
+
+  run_next_test();
+}
+
+const UUID_PATTERN = /^\{[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\}$/i;
+
+add_test(function test_getter_and_setter() {
+  // Our test add-on requires a restart.
+  let listener = {
+    onInstallEnded: function onInstallEnded() {
+     AddonManager.removeInstallListener(listener);
+     // never restart directly inside an onInstallEnded handler!
+     do_execute_soon(function getter_setter_install_ended() {
+      restartManager();
+
+      AddonManager.getAddonByID(addonId, function(addon) {
+
+        do_check_neq(addon, null);
+        do_check_neq(addon.syncGUID, null);
+        do_check_true(UUID_PATTERN.test(addon.syncGUID));
+
+        let oldGUID = addon.SyncGUID;
+        let newGUID = "foo";
+
+        addon.syncGUID = newGUID;
+        do_check_eq(newGUID, addon.syncGUID);
+
+        // Verify change made it to DB.
+        AddonManager.getAddonByID(addonId, function(newAddon) {
+          do_check_neq(newAddon, null);
+          do_check_eq(newGUID, newAddon.syncGUID);
+        });
+
+        run_next_test();
+      });
+     });
+    }
+  };
+
+  AddonManager.addInstallListener(listener);
+
+  AddonManager.getInstallForFile(do_get_addon("test_install1"),
+                                 function(install) {
+    install.install();
+  });
+});
+
+add_test(function test_fetch_by_guid_unknown_guid() {
+  XPIProvider.getAddonBySyncGUID("XXXX", function(addon) {
+    do_check_eq(null, addon);
+    run_next_test();
+  });
+});
+
+// Ensure setting an extension to an existing syncGUID results in error.
+add_test(function test_error_on_duplicate_syncguid_insert() {
+  const installNames = ["test_install1", "test_install2_1"];
+  const installIDs = ["addon1@tests.mozilla.org", "addon2@tests.mozilla.org"];
+
+  let installCount = 0;
+
+  let listener = {
+    onInstallEnded: function onInstallEnded() {
+      installCount++;
+
+      if (installCount == installNames.length) {
+       AddonManager.removeInstallListener(listener);
+       do_execute_soon(function duplicate_syncguid_install_ended() {
+        restartManager();
+
+        AddonManager.getAddonsByIDs(installIDs, callback_soon(function(addons) {
+          let initialGUID = addons[1].syncGUID;
+
+          try {
+            addons[1].syncGUID = addons[0].syncGUID;
+            do_throw("Should not get here.");
+          }
+          catch (e) {
+            do_check_true(e.message.startsWith("Addon sync GUID conflict"));
+            restartManager();
+
+            AddonManager.getAddonByID(installIDs[1], function(addon) {
+              do_check_eq(initialGUID, addon.syncGUID);
+              run_next_test();
+            });
+          }
+        }));
+       });
+      }
+    }
+  };
+
+  AddonManager.addInstallListener(listener);
+  let getInstallCB = function(install) { install.install(); };
+
+  for (let name of installNames) {
+    AddonManager.getInstallForFile(do_get_addon(name), getInstallCB);
+  }
+});
+
+add_test(function test_fetch_by_guid_known_guid() {
+  AddonManager.getAddonByID(addonId, function(addon) {
+    do_check_neq(null, addon);
+    do_check_neq(null, addon.syncGUID);
+
+    let syncGUID = addon.syncGUID;
+
+    XPIProvider.getAddonBySyncGUID(syncGUID, function(newAddon) {
+      do_check_neq(null, newAddon);
+      do_check_eq(syncGUID, newAddon.syncGUID);
+
+      run_next_test();
+    });
+  });
+});
+
+add_test(function test_addon_manager_get_by_sync_guid() {
+  AddonManager.getAddonByID(addonId, function(addon) {
+    do_check_neq(null, addon.syncGUID);
+
+    let syncGUID = addon.syncGUID;
+
+    AddonManager.getAddonBySyncGUID(syncGUID, function(newAddon) {
+      do_check_neq(null, newAddon);
+      do_check_eq(addon.id, newAddon.id);
+      do_check_eq(syncGUID, newAddon.syncGUID);
+
+      AddonManager.getAddonBySyncGUID("DOES_NOT_EXIST", function(missing) {
+        do_check_eq(undefined, missing);
+
+        run_next_test();
+      });
+    });
+  });
+});
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_system_delay_update.js b/toolkit/mozapps/webextensions/test/xpcshell/test_system_delay_update.js
new file mode 100644
index 000000000..35964c663
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_system_delay_update.js
@@ -0,0 +1,461 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that delaying a system add-on update works.
+
+Components.utils.import("resource://testing-common/httpd.js");
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+const tempdir = gTmpD.clone();
+
+const PREF_SYSTEM_ADDON_SET           = "extensions.systemAddonSet";
+const PREF_SYSTEM_ADDON_UPDATE_URL    = "extensions.systemAddon.update.url";
+
+const IGNORE_ID = "system_delay_ignore@tests.mozilla.org";
+const COMPLETE_ID = "system_delay_complete@tests.mozilla.org";
+const DEFER_ID = "system_delay_defer@tests.mozilla.org";
+const DEFER_ALSO_ID = "system_delay_defer_also@tests.mozilla.org";
+const NORMAL_ID = "system1@tests.mozilla.org";
+
+
+const TEST_IGNORE_PREF = "delaytest.ignore";
+
+const distroDir = FileUtils.getDir("ProfD", ["sysfeatures"], true);
+registerDirectory("XREAppFeat", distroDir);
+
+let testserver = new HttpServer();
+testserver.registerDirectory("/data/", do_get_file("data/system_addons"));
+testserver.start();
+let root = `${testserver.identity.primaryScheme}://${testserver.identity.primaryHost}:${testserver.identity.primaryPort}/data/`;
+Services.prefs.setCharPref(PREF_SYSTEM_ADDON_UPDATE_URL, root + "update.xml");
+
+
+// Note that we would normally use BootstrapMonitor but it currently requires
+// the objects in `data` to be serializable, and we need a real reference to the
+// `instanceID` symbol to test.
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+
+function promiseInstallPostponed(addonID1, addonID2) {
+  return new Promise((resolve, reject) => {
+    let seen = [];
+    let listener = {
+      onInstallFailed: () => {
+        AddonManager.removeInstallListener(listener);
+        reject("extension installation should not have failed");
+      },
+      onInstallEnded: (install) => {
+        AddonManager.removeInstallListener(listener);
+        reject(`extension installation should not have ended for ${install.addon.id}`);
+      },
+      onInstallPostponed: (install) => {
+        seen.push(install.addon.id);
+        if (seen.includes(addonID1) && seen.includes(addonID2)) {
+          AddonManager.removeInstallListener(listener);
+          resolve();
+        }
+      }
+    };
+
+    AddonManager.addInstallListener(listener);
+  });
+}
+
+function promiseInstallResumed(addonID1, addonID2) {
+  return new Promise((resolve, reject) => {
+    let seenPostponed = [];
+    let seenEnded = [];
+    let listener = {
+      onInstallFailed: () => {
+        AddonManager.removeInstallListener(listener);
+        reject("extension installation should not have failed");
+      },
+      onInstallEnded: (install) => {
+        seenEnded.push(install.addon.id);
+        if ((seenEnded.includes(addonID1) && seenEnded.includes(addonID2)) &&
+            (seenPostponed.includes(addonID1) && seenPostponed.includes(addonID2))) {
+          AddonManager.removeInstallListener(listener);
+          resolve();
+        }
+      },
+      onInstallPostponed: (install) => {
+        seenPostponed.push(install.addon.id);
+      }
+    };
+
+    AddonManager.addInstallListener(listener);
+  });
+}
+
+function promiseInstallDeferred(addonID1, addonID2) {
+  return new Promise((resolve, reject) => {
+    let seenEnded = [];
+    let listener = {
+      onInstallFailed: () => {
+        AddonManager.removeInstallListener(listener);
+        reject("extension installation should not have failed");
+      },
+      onInstallEnded: (install) => {
+        seenEnded.push(install.addon.id);
+        if (seenEnded.includes(addonID1) && seenEnded.includes(addonID2)) {
+          AddonManager.removeInstallListener(listener);
+          resolve();
+        }
+      },
+      onInstallPostponed: (install) => {
+        AddonManager.removeInstallListener(listener);
+        reject(`extension installation should not have been postponed for ${install.addon.id}`);
+      }
+    };
+
+    AddonManager.addInstallListener(listener);
+  });
+}
+
+
+// add-on registers upgrade listener, and ignores update.
+add_task(function*() {
+  // discard system addon updates
+  Services.prefs.setCharPref(PREF_SYSTEM_ADDON_SET, "");
+
+  do_get_file("data/system_addons/system_delay_ignore.xpi").copyTo(distroDir, "system_delay_ignore@tests.mozilla.org.xpi");
+  do_get_file("data/system_addons/system1_1.xpi").copyTo(distroDir, "system1@tests.mozilla.org.xpi");
+
+  startupManager();
+  let updateList = [
+    { id: IGNORE_ID, version: "2.0", path: "system_delay_ignore_2.xpi" },
+    { id: NORMAL_ID, version: "2.0", path: "system1_2.xpi" },
+  ];
+
+  let postponed = promiseInstallPostponed(IGNORE_ID, NORMAL_ID);
+  yield installSystemAddons(yield buildSystemAddonUpdates(updateList, root), testserver);
+  yield postponed;
+
+  // addon upgrade has been delayed.
+  let addon_postponed = yield promiseAddonByID(IGNORE_ID, NORMAL_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "System Test Delay Update Ignore");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+  do_check_true(Services.prefs.getBoolPref(TEST_IGNORE_PREF));
+
+  // other addons in the set are delayed as well.
+  addon_postponed = yield promiseAddonByID(NORMAL_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "System Add-on 1");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  // restarting allows upgrades to proceed
+  yield promiseRestartManager();
+
+  let addon_upgraded = yield promiseAddonByID(IGNORE_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "System Test Delay Update Ignore");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  addon_upgraded = yield promiseAddonByID(NORMAL_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "System Add-on 1");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  yield shutdownManager();
+});
+
+// add-on registers upgrade listener, and allows update.
+add_task(function*() {
+  // discard system addon updates
+  Services.prefs.setCharPref(PREF_SYSTEM_ADDON_SET, "");
+
+  do_get_file("data/system_addons/system_delay_complete.xpi").copyTo(distroDir, "system_delay_complete@tests.mozilla.org.xpi");
+  do_get_file("data/system_addons/system1_1.xpi").copyTo(distroDir, "system1@tests.mozilla.org.xpi");
+
+  startupManager();
+
+  let updateList = [
+    { id: COMPLETE_ID, version: "2.0", path: "system_delay_complete_2.xpi" },
+    { id: NORMAL_ID, version: "2.0", path: "system1_2.xpi" },
+  ];
+
+  // initial state
+  let addon_allowed = yield promiseAddonByID(COMPLETE_ID);
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "1.0");
+  do_check_eq(addon_allowed.name, "System Test Delay Update Complete");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  addon_allowed = yield promiseAddonByID(NORMAL_ID);
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "1.0");
+  do_check_eq(addon_allowed.name, "System Add-on 1");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  let resumed = promiseInstallResumed(COMPLETE_ID, NORMAL_ID);
+  yield installSystemAddons(yield buildSystemAddonUpdates(updateList, root), testserver);
+
+  // update is initially postponed, then resumed
+  yield resumed;
+
+  // addon upgrade has been allowed
+  addon_allowed = yield promiseAddonByID(COMPLETE_ID);
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "System Test Delay Update Complete");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  // other upgrades in the set are allowed as well
+  addon_allowed = yield promiseAddonByID(NORMAL_ID);
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "System Add-on 1");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  // restarting changes nothing
+  yield promiseRestartManager();
+
+  let addon_upgraded = yield promiseAddonByID(COMPLETE_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "System Test Delay Update Complete");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  addon_upgraded = yield promiseAddonByID(NORMAL_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "System Add-on 1");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  yield shutdownManager();
+});
+
+// add-on registers upgrade listener, initially defers update then allows upgrade
+add_task(function*() {
+  // discard system addon updates
+  Services.prefs.setCharPref(PREF_SYSTEM_ADDON_SET, "");
+
+  do_get_file("data/system_addons/system_delay_defer.xpi").copyTo(distroDir, "system_delay_defer@tests.mozilla.org.xpi");
+  do_get_file("data/system_addons/system1_1.xpi").copyTo(distroDir, "system1@tests.mozilla.org.xpi");
+
+  startupManager();
+
+  let updateList = [
+    { id: DEFER_ID, version: "2.0", path: "system_delay_defer_2.xpi" },
+    { id: NORMAL_ID, version: "2.0", path: "system1_2.xpi" },
+  ];
+
+  let postponed = promiseInstallPostponed(DEFER_ID, NORMAL_ID);
+  yield installSystemAddons(yield buildSystemAddonUpdates(updateList, root), testserver);
+  yield postponed;
+
+  // upgrade is initially postponed
+  let addon_postponed = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "System Test Delay Update Defer");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  // other addons in the set are postponed as well.
+  addon_postponed = yield promiseAddonByID(NORMAL_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "System Add-on 1");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  let deferred = promiseInstallDeferred(DEFER_ID, NORMAL_ID);
+  // add-on will not allow upgrade until fake event fires
+  AddonManagerPrivate.callAddonListeners("onFakeEvent");
+
+  yield deferred;
+
+  // addon upgrade has been allowed
+  let addon_allowed = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "System Test Delay Update Defer");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  // other addons in the set are allowed as well.
+  addon_allowed = yield promiseAddonByID(NORMAL_ID);
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "System Add-on 1");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  // restarting changes nothing
+  yield promiseRestartManager();
+
+  let addon_upgraded = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "System Test Delay Update Defer");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  addon_upgraded = yield promiseAddonByID(NORMAL_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "System Add-on 1");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  yield shutdownManager();
+});
+
+// multiple add-ons registers upgrade listeners, initially defers then each unblock in turn.
+add_task(function*() {
+  // discard system addon updates.
+  Services.prefs.setCharPref(PREF_SYSTEM_ADDON_SET, "");
+
+  do_get_file("data/system_addons/system_delay_defer.xpi").copyTo(distroDir, "system_delay_defer@tests.mozilla.org.xpi");
+  do_get_file("data/system_addons/system_delay_defer_also.xpi").copyTo(distroDir, "system_delay_defer_also@tests.mozilla.org.xpi");
+
+  startupManager();
+
+  let updateList = [
+    { id: DEFER_ID, version: "2.0", path: "system_delay_defer_2.xpi" },
+    { id: DEFER_ALSO_ID, version: "2.0", path: "system_delay_defer_also_2.xpi" },
+  ];
+
+  let postponed = promiseInstallPostponed(DEFER_ID, DEFER_ALSO_ID);
+  yield installSystemAddons(yield buildSystemAddonUpdates(updateList, root), testserver);
+  yield postponed;
+
+  // upgrade is initially postponed
+  let addon_postponed = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "System Test Delay Update Defer");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  // other addons in the set are postponed as well.
+  addon_postponed = yield promiseAddonByID(DEFER_ALSO_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "System Test Delay Update Defer Also");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  let deferred = promiseInstallDeferred(DEFER_ID, DEFER_ALSO_ID);
+  // add-on will not allow upgrade until fake event fires
+  AddonManagerPrivate.callAddonListeners("onFakeEvent");
+
+  // Upgrade blockers still present.
+  addon_postponed = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "System Test Delay Update Defer");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  addon_postponed = yield promiseAddonByID(DEFER_ALSO_ID);
+  do_check_neq(addon_postponed, null);
+  do_check_eq(addon_postponed.version, "1.0");
+  do_check_eq(addon_postponed.name, "System Test Delay Update Defer Also");
+  do_check_true(addon_postponed.isCompatible);
+  do_check_false(addon_postponed.appDisabled);
+  do_check_true(addon_postponed.isActive);
+  do_check_eq(addon_postponed.type, "extension");
+
+  AddonManagerPrivate.callAddonListeners("onOtherFakeEvent");
+
+  yield deferred;
+
+  // addon upgrade has been allowed
+  let addon_allowed = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon_allowed, null);
+  do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "System Test Delay Update Defer");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  // other addons in the set are allowed as well.
+  addon_allowed = yield promiseAddonByID(DEFER_ALSO_ID);
+  do_check_neq(addon_allowed, null);
+  // do_check_eq(addon_allowed.version, "2.0");
+  do_check_eq(addon_allowed.name, "System Test Delay Update Defer Also");
+  do_check_true(addon_allowed.isCompatible);
+  do_check_false(addon_allowed.appDisabled);
+  do_check_true(addon_allowed.isActive);
+  do_check_eq(addon_allowed.type, "extension");
+
+  // restarting changes nothing
+  yield promiseRestartManager();
+
+  let addon_upgraded = yield promiseAddonByID(DEFER_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "System Test Delay Update Defer");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  addon_upgraded = yield promiseAddonByID(DEFER_ALSO_ID);
+  do_check_neq(addon_upgraded, null);
+  do_check_eq(addon_upgraded.version, "2.0");
+  do_check_eq(addon_upgraded.name, "System Test Delay Update Defer Also");
+  do_check_true(addon_upgraded.isCompatible);
+  do_check_false(addon_upgraded.appDisabled);
+  do_check_true(addon_upgraded.isActive);
+  do_check_eq(addon_upgraded.type, "extension");
+
+  yield shutdownManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_system_reset.js b/toolkit/mozapps/webextensions/test/xpcshell/test_system_reset.js
new file mode 100644
index 000000000..31b7e5783
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_system_reset.js
@@ -0,0 +1,418 @@
+// Tests that we reset to the default system add-ons correctly when switching
+// application versions
+const PREF_SYSTEM_ADDON_SET = "extensions.systemAddonSet";
+
+BootstrapMonitor.init();
+
+const updatesDir = FileUtils.getDir("ProfD", ["features"]);
+
+// Build the test sets
+var dir = FileUtils.getDir("ProfD", ["sysfeatures", "app1"], true);
+do_get_file("data/system_addons/system1_1.xpi").copyTo(dir, "system1@tests.mozilla.org.xpi");
+do_get_file("data/system_addons/system2_1.xpi").copyTo(dir, "system2@tests.mozilla.org.xpi");
+
+dir = FileUtils.getDir("ProfD", ["sysfeatures", "app2"], true);
+do_get_file("data/system_addons/system1_2.xpi").copyTo(dir, "system1@tests.mozilla.org.xpi");
+do_get_file("data/system_addons/system3_1.xpi").copyTo(dir, "system3@tests.mozilla.org.xpi");
+
+dir = FileUtils.getDir("ProfD", ["sysfeatures", "app3"], true);
+do_get_file("data/system_addons/system1_1_badcert.xpi").copyTo(dir, "system1@tests.mozilla.org.xpi");
+do_get_file("data/system_addons/system3_1.xpi").copyTo(dir, "system3@tests.mozilla.org.xpi");
+
+const distroDir = FileUtils.getDir("ProfD", ["sysfeatures", "app0"], true);
+registerDirectory("XREAppFeat", distroDir);
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "0");
+
+function makeUUID() {
+  let uuidGen = AM_Cc["@mozilla.org/uuid-generator;1"].
+                getService(AM_Ci.nsIUUIDGenerator);
+  return uuidGen.generateUUID().toString();
+}
+
+function* check_installed(conditions) {
+  for (let i = 0; i < conditions.length; i++) {
+    let condition = conditions[i];
+    let id = "system" + (i + 1) + "@tests.mozilla.org";
+    let addon = yield promiseAddonByID(id);
+
+    if (!("isUpgrade" in condition) || !("version" in condition)) {
+      throw Error("condition must contain isUpgrade and version");
+    }
+    let isUpgrade = conditions[i].isUpgrade;
+    let version = conditions[i].version;
+
+    let expectedDir = isUpgrade ? updatesDir : distroDir;
+
+    if (version) {
+      // Add-on should be installed
+      do_check_neq(addon, null);
+      do_check_eq(addon.version, version);
+      do_check_true(addon.isActive);
+      do_check_false(addon.foreignInstall);
+      do_check_true(addon.hidden);
+      do_check_true(addon.isSystem);
+      do_check_false(hasFlag(addon.permissions, AddonManager.PERM_CAN_UPGRADE));
+      if (isUpgrade) {
+        do_check_true(hasFlag(addon.permissions, AddonManager.PERM_CAN_UNINSTALL));
+      } else {
+        do_check_false(hasFlag(addon.permissions, AddonManager.PERM_CAN_UNINSTALL));
+      }
+
+      // Verify the add-ons file is in the right place
+      let file = expectedDir.clone();
+      file.append(id + ".xpi");
+      do_check_true(file.exists());
+      do_check_true(file.isFile());
+
+      let uri = addon.getResourceURI(null);
+      do_check_true(uri instanceof AM_Ci.nsIFileURL);
+      do_check_eq(uri.file.path, file.path);
+
+      if (isUpgrade) {
+        do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_SYSTEM);
+      }
+
+      // Verify the add-on actually started
+      BootstrapMonitor.checkAddonStarted(id, version);
+    }
+    else {
+      if (isUpgrade) {
+        // Add-on should not be installed
+        do_check_eq(addon, null);
+      }
+      else {
+        // Either add-on should not be installed or it shouldn't be active
+        do_check_true(!addon || !addon.isActive);
+      }
+
+      BootstrapMonitor.checkAddonNotStarted(id);
+
+      if (addon)
+        BootstrapMonitor.checkAddonInstalled(id);
+      else
+        BootstrapMonitor.checkAddonNotInstalled(id);
+    }
+  }
+}
+
+// Test with a missing features directory
+add_task(function* test_missing_app_dir() {
+  startupManager();
+
+  let conditions = [
+      { isUpgrade: false, version: null },
+      { isUpgrade: false, version: null },
+      { isUpgrade: false, version: null },
+  ];
+
+  yield check_installed(conditions);
+
+  do_check_false(updatesDir.exists());
+
+  yield promiseShutdownManager();
+});
+
+// Add some features in a new version
+add_task(function* test_new_version() {
+  gAppInfo.version = "1";
+  distroDir.leafName = "app1";
+  startupManager();
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: null },
+  ];
+
+  yield check_installed(conditions);
+
+  do_check_false(updatesDir.exists());
+
+  yield promiseShutdownManager();
+});
+
+// Another new version swaps one feature and upgrades another
+add_task(function* test_upgrade() {
+  gAppInfo.version = "2";
+  distroDir.leafName = "app2";
+  startupManager();
+
+  let conditions = [
+      { isUpgrade: false, version: "2.0" },
+      { isUpgrade: false, version: null },
+      { isUpgrade: false, version: "1.0" },
+  ];
+
+  yield check_installed(conditions);
+
+  do_check_false(updatesDir.exists());
+
+  yield promiseShutdownManager();
+});
+
+// Downgrade
+add_task(function* test_downgrade() {
+  gAppInfo.version = "1";
+  distroDir.leafName = "app1";
+  startupManager();
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: null },
+  ];
+
+  yield check_installed(conditions);
+
+  do_check_false(updatesDir.exists());
+
+  yield promiseShutdownManager();
+});
+
+// Fake a mid-cycle install
+add_task(function* test_updated() {
+  // Create a random dir to install into
+  let dirname = makeUUID();
+  FileUtils.getDir("ProfD", ["features", dirname], true);
+  updatesDir.append(dirname);
+
+  // Copy in the system add-ons
+    let file = do_get_file("data/system_addons/system2_2.xpi");
+  file.copyTo(updatesDir, "system2@tests.mozilla.org.xpi");
+  file = do_get_file("data/system_addons/system3_2.xpi");
+  file.copyTo(updatesDir, "system3@tests.mozilla.org.xpi");
+
+  // Inject it into the system set
+  let addonSet = {
+    schema: 1,
+    directory: updatesDir.leafName,
+    addons: {
+      "system2@tests.mozilla.org": {
+        version: "2.0"
+      },
+      "system3@tests.mozilla.org": {
+        version: "2.0"
+      },
+    }
+  };
+  Services.prefs.setCharPref(PREF_SYSTEM_ADDON_SET, JSON.stringify(addonSet));
+
+  startupManager(false);
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: true, version: "2.0" },
+      { isUpgrade: true, version: "2.0" },
+  ];
+
+  yield check_installed(conditions);
+
+  yield promiseShutdownManager();
+});
+
+// Entering safe mode should disable the updated system add-ons and use the
+// default system add-ons
+add_task(function* safe_mode_disabled() {
+  gAppInfo.inSafeMode = true;
+  startupManager(false);
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: null },
+  ];
+
+  yield check_installed(conditions);
+
+  yield promiseShutdownManager();
+});
+
+// Leaving safe mode should re-enable the updated system add-ons
+add_task(function* normal_mode_enabled() {
+  gAppInfo.inSafeMode = false;
+  startupManager(false);
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: true, version: "2.0" },
+      { isUpgrade: true, version: "2.0" },
+  ];
+
+  yield check_installed(conditions);
+
+  yield promiseShutdownManager();
+});
+
+// An additional add-on in the directory should be ignored
+add_task(function* test_skips_additional() {
+  // Copy in the system add-ons
+  let file = do_get_file("data/system_addons/system4_1.xpi");
+  file.copyTo(updatesDir, "system4@tests.mozilla.org.xpi");
+
+  startupManager(false);
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: true, version: "2.0" },
+      { isUpgrade: true, version: "2.0" },
+  ];
+
+  yield check_installed(conditions);
+
+  yield promiseShutdownManager();
+});
+
+// Missing add-on should revert to the default set
+add_task(function* test_revert() {
+  manuallyUninstall(updatesDir, "system2@tests.mozilla.org");
+
+  // With the add-on physically gone from disk we won't see uninstall events
+  BootstrapMonitor.clear("system2@tests.mozilla.org");
+
+  startupManager(false);
+
+  // With system add-on 2 gone the updated set is now invalid so it reverts to
+  // the default set which is system add-ons 1 and 2.
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: null },
+  ];
+
+  yield check_installed(conditions);
+
+  yield promiseShutdownManager();
+});
+
+// Putting it back will make the set work again
+add_task(function* test_reuse() {
+  let file = do_get_file("data/system_addons/system2_2.xpi");
+  file.copyTo(updatesDir, "system2@tests.mozilla.org.xpi");
+
+  startupManager(false);
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: true, version: "2.0" },
+      { isUpgrade: true, version: "2.0" },
+  ];
+
+  yield check_installed(conditions);
+
+  yield promiseShutdownManager();
+});
+
+// Making the pref corrupt should revert to the default set
+add_task(function* test_corrupt_pref() {
+  Services.prefs.setCharPref(PREF_SYSTEM_ADDON_SET, "foo");
+
+  startupManager(false);
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: null },
+  ];
+
+  yield check_installed(conditions);
+
+  yield promiseShutdownManager();
+});
+
+// An add-on with a bad certificate should cause us to use the default set
+add_task(function* test_bad_profile_cert() {
+  let file = do_get_file("data/system_addons/system1_1_badcert.xpi");
+  file.copyTo(updatesDir, "system1@tests.mozilla.org.xpi");
+
+  // Inject it into the system set
+  let addonSet = {
+    schema: 1,
+    directory: updatesDir.leafName,
+    addons: {
+      "system1@tests.mozilla.org": {
+        version: "2.0"
+      },
+      "system2@tests.mozilla.org": {
+        version: "1.0"
+      },
+      "system3@tests.mozilla.org": {
+        version: "1.0"
+      },
+    }
+  };
+  Services.prefs.setCharPref(PREF_SYSTEM_ADDON_SET, JSON.stringify(addonSet));
+
+  startupManager(false);
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: null },
+  ];
+
+  yield check_installed(conditions);
+
+  yield promiseShutdownManager();
+});
+
+// Switching to app defaults that contain a bad certificate should still work
+add_task(function* test_bad_app_cert() {
+  gAppInfo.version = "3";
+  distroDir.leafName = "app3";
+  startupManager();
+
+  // Add-on will still be present
+  let addon = yield promiseAddonByID("system1@tests.mozilla.org");
+  do_check_neq(addon, null);
+  do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+      { isUpgrade: false, version: null },
+      { isUpgrade: false, version: "1.0" },
+  ];
+
+  yield check_installed(conditions);
+
+  yield promiseShutdownManager();
+});
+
+// A failed upgrade should revert to the default set.
+add_task(function* test_updated() {
+  // Create a random dir to install into
+  let dirname = makeUUID();
+  FileUtils.getDir("ProfD", ["features", dirname], true);
+  updatesDir.append(dirname);
+
+  // Copy in the system add-ons
+  let file = do_get_file("data/system_addons/system2_2.xpi");
+  file.copyTo(updatesDir, "system2@tests.mozilla.org.xpi");
+  file = do_get_file("data/system_addons/system_failed_update.xpi");
+  file.copyTo(updatesDir, "system_failed_update@tests.mozilla.org.xpi");
+
+  // Inject it into the system set
+  let addonSet = {
+    schema: 1,
+    directory: updatesDir.leafName,
+    addons: {
+      "system2@tests.mozilla.org": {
+        version: "2.0"
+      },
+      "system_failed_update@tests.mozilla.org": {
+        version: "1.0"
+      },
+    }
+  };
+  Services.prefs.setCharPref(PREF_SYSTEM_ADDON_SET, JSON.stringify(addonSet));
+
+  startupManager(false);
+
+  let conditions = [
+      { isUpgrade: false, version: "1.0" },
+  ];
+
+  yield check_installed(conditions);
+
+  yield promiseShutdownManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_system_update.js b/toolkit/mozapps/webextensions/test/xpcshell/test_system_update.js
new file mode 100644
index 000000000..c8e314427
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_system_update.js
@@ -0,0 +1,788 @@
+// Tests that we reset to the default system add-ons correctly when switching
+// application versions
+const PREF_SYSTEM_ADDON_SET           = "extensions.systemAddonSet";
+const PREF_SYSTEM_ADDON_UPDATE_URL    = "extensions.systemAddon.update.url";
+const PREF_XPI_STATE                  = "extensions.xpiState";
+const PREF_APP_UPDATE_ENABLED         = "app.update.enabled";
+
+Components.utils.import("resource://testing-common/httpd.js");
+const { computeHash } = Components.utils.import("resource://gre/modules/addons/ProductAddonChecker.jsm");
+
+BootstrapMonitor.init();
+
+const updatesDir = FileUtils.getDir("ProfD", ["features"], false);
+
+function getCurrentUpdatesDir() {
+  let dir = updatesDir.clone();
+  let set = JSON.parse(Services.prefs.getCharPref(PREF_SYSTEM_ADDON_SET));
+  dir.append(set.directory);
+  return dir;
+}
+
+function clearUpdatesDir() {
+  // Delete any existing directories
+  if (updatesDir.exists())
+    updatesDir.remove(true);
+
+  Services.prefs.clearUserPref(PREF_SYSTEM_ADDON_SET);
+}
+
+function buildPrefilledUpdatesDir() {
+  clearUpdatesDir();
+
+  // Build the test set
+  let dir = FileUtils.getDir("ProfD", ["features", "prefilled"], true);
+
+  do_get_file("data/system_addons/system2_2.xpi").copyTo(dir, "system2@tests.mozilla.org.xpi");
+  do_get_file("data/system_addons/system3_2.xpi").copyTo(dir, "system3@tests.mozilla.org.xpi");
+
+  // Mark these in the past so the startup file scan notices when files have changed properly
+  FileUtils.getFile("ProfD", ["features", "prefilled", "system2@tests.mozilla.org.xpi"]).lastModifiedTime -= 10000;
+  FileUtils.getFile("ProfD", ["features", "prefilled", "system3@tests.mozilla.org.xpi"]).lastModifiedTime -= 10000;
+
+  Services.prefs.setCharPref(PREF_SYSTEM_ADDON_SET, JSON.stringify({
+    schema: 1,
+    directory: dir.leafName,
+    addons: {
+      "system2@tests.mozilla.org": {
+        version: "2.0"
+      },
+      "system3@tests.mozilla.org": {
+        version: "2.0"
+      },
+    }
+  }));
+}
+
+let dir = FileUtils.getDir("ProfD", ["sysfeatures", "hidden"], true);
+do_get_file("data/system_addons/system1_1.xpi").copyTo(dir, "system1@tests.mozilla.org.xpi");
+do_get_file("data/system_addons/system2_1.xpi").copyTo(dir, "system2@tests.mozilla.org.xpi");
+
+dir = FileUtils.getDir("ProfD", ["sysfeatures", "prefilled"], true);
+do_get_file("data/system_addons/system2_2.xpi").copyTo(dir, "system2@tests.mozilla.org.xpi");
+do_get_file("data/system_addons/system3_2.xpi").copyTo(dir, "system3@tests.mozilla.org.xpi");
+
+const distroDir = FileUtils.getDir("ProfD", ["sysfeatures", "empty"], true);
+registerDirectory("XREAppFeat", distroDir);
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "2");
+
+var testserver = new HttpServer();
+testserver.registerDirectory("/data/", do_get_file("data/system_addons"));
+testserver.start();
+var root = testserver.identity.primaryScheme + "://" +
+           testserver.identity.primaryHost + ":" +
+           testserver.identity.primaryPort + "/data/"
+Services.prefs.setCharPref(PREF_SYSTEM_ADDON_UPDATE_URL, root + "update.xml");
+
+function makeUUID() {
+  let uuidGen = AM_Cc["@mozilla.org/uuid-generator;1"].
+                getService(AM_Ci.nsIUUIDGenerator);
+  return uuidGen.generateUUID().toString();
+}
+
+function* check_installed(conditions) {
+  for (let i = 0; i < conditions.length; i++) {
+    let condition = conditions[i];
+    let id = "system" + (i + 1) + "@tests.mozilla.org";
+    let addon = yield promiseAddonByID(id);
+
+    if (!("isUpgrade" in condition) || !("version" in condition)) {
+      throw Error("condition must contain isUpgrade and version");
+    }
+    let isUpgrade = conditions[i].isUpgrade;
+    let version = conditions[i].version;
+
+    let expectedDir = isUpgrade ? getCurrentUpdatesDir() : distroDir;
+
+    if (version) {
+      do_print(`Checking state of add-on ${id}, expecting version ${version}`);
+
+      // Add-on should be installed
+      do_check_neq(addon, null);
+      do_check_eq(addon.version, version);
+      do_check_true(addon.isActive);
+      do_check_false(addon.foreignInstall);
+      do_check_true(addon.hidden);
+      do_check_true(addon.isSystem);
+
+      // Verify the add-ons file is in the right place
+      let file = expectedDir.clone();
+      file.append(id + ".xpi");
+      do_check_true(file.exists());
+      do_check_true(file.isFile());
+
+      let uri = addon.getResourceURI(null);
+      do_check_true(uri instanceof AM_Ci.nsIFileURL);
+      do_check_eq(uri.file.path, file.path);
+
+      if (isUpgrade) {
+        do_check_eq(addon.signedState, AddonManager.SIGNEDSTATE_SYSTEM);
+      }
+
+      // Verify the add-on actually started
+      BootstrapMonitor.checkAddonStarted(id, version);
+    }
+    else {
+      do_print(`Checking state of add-on ${id}, expecting it to be missing`);
+
+      if (isUpgrade) {
+        // Add-on should not be installed
+        do_check_eq(addon, null);
+      }
+
+      BootstrapMonitor.checkAddonNotStarted(id);
+
+      if (addon)
+        BootstrapMonitor.checkAddonInstalled(id);
+      else
+        BootstrapMonitor.checkAddonNotInstalled(id);
+    }
+  }
+}
+
+
+/**
+ * Defines the set of initial conditions to run each test against. Each should
+ * define the following properties:
+ *
+ * setup:        A task to setup the profile into the initial state.
+ * initialState: The initial expected system add-on state after setup has run.
+ */
+const TEST_CONDITIONS = {
+  // Runs tests with no updated or default system add-ons initially installed
+  blank: {
+    setup: function*() {
+      clearUpdatesDir();
+      distroDir.leafName = "empty";
+    },
+    initialState: [
+      { isUpgrade: false, version: null},
+      { isUpgrade: false, version: null},
+      { isUpgrade: false, version: null},
+      { isUpgrade: false, version: null},
+      { isUpgrade: false, version: null}
+    ],
+  },
+  // Runs tests with default system add-ons installed
+  withAppSet: {
+    setup: function*() {
+      clearUpdatesDir();
+      distroDir.leafName = "prefilled";
+    },
+    initialState: [
+      { isUpgrade: false, version: null},
+      { isUpgrade: false, version: "2.0"},
+      { isUpgrade: false, version: "2.0"},
+      { isUpgrade: false, version: null},
+      { isUpgrade: false, version: null}
+    ]
+  },
+
+  // Runs tests with updated system add-ons installed
+  withProfileSet: {
+    setup: function*() {
+      buildPrefilledUpdatesDir();
+      distroDir.leafName = "empty";
+    },
+    initialState: [
+      { isUpgrade: false, version: null},
+      { isUpgrade: true, version: "2.0"},
+      { isUpgrade: true, version: "2.0"},
+      { isUpgrade: false, version: null},
+      { isUpgrade: false, version: null}
+    ]
+  },
+
+  // Runs tests with both default and updated system add-ons installed
+  withBothSets: {
+    setup: function*() {
+      buildPrefilledUpdatesDir();
+      distroDir.leafName = "hidden";
+    },
+    initialState: [
+      { isUpgrade: false, version: "1.0"},
+      { isUpgrade: true, version: "2.0"},
+      { isUpgrade: true, version: "2.0"},
+      { isUpgrade: false, version: null},
+      { isUpgrade: false, version: null}
+    ]
+  },
+};
+
+
+/**
+ * The tests to run. Each test must define an updateList or test. The following
+ * properties are used:
+ *
+ * updateList: The set of add-ons the server should respond with.
+ * test:       A function to run to perform the update check (replaces
+ *             updateList)
+ * fails:      An optional property, if true the update check is expected to
+ *             fail.
+ * finalState: An optional property, the expected final state of system add-ons,
+ *             if missing the test condition's initialState is used.
+ */
+const TESTS = {
+  // Test that a blank response does nothing
+  blank: {
+    updateList: null,
+  },
+
+  // Test that an empty list removes existing updates, leaving defaults.
+  empty: {
+    updateList: [],
+    finalState: {
+      blank: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null}
+      ],
+      withAppSet: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: "2.0"},
+        { isUpgrade: false, version: "2.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null}
+      ],
+      withProfileSet: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null}
+      ],
+      withBothSets: [
+        { isUpgrade: false, version: "1.0"},
+        { isUpgrade: false, version: "1.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        // Set this to `true` to so `verify_state()` expects a blank profile dir
+        { isUpgrade: true, version: null}
+      ]
+    },
+  },
+  // Tests that a new set of system add-ons gets installed
+  newset: {
+    updateList: [
+      { id: "system4@tests.mozilla.org", version: "1.0", path: "system4_1.xpi" },
+      { id: "system5@tests.mozilla.org", version: "1.0", path: "system5_1.xpi" }
+    ],
+    finalState: {
+      blank: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "1.0"},
+        { isUpgrade: true, version: "1.0"}
+      ],
+      withAppSet: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: "2.0"},
+        { isUpgrade: false, version: "2.0"},
+        { isUpgrade: true, version: "1.0"},
+        { isUpgrade: true, version: "1.0"}
+      ],
+      withProfileSet: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "1.0"},
+        { isUpgrade: true, version: "1.0"}
+      ],
+      withBothSets: [
+        { isUpgrade: false, version: "1.0"},
+        { isUpgrade: false, version: "1.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "1.0"},
+        { isUpgrade: true, version: "1.0"}
+      ]
+    }
+  },
+
+  // Tests that an upgraded set of system add-ons gets installed
+  upgrades: {
+    updateList: [
+      { id: "system2@tests.mozilla.org", version: "3.0", path: "system2_3.xpi" },
+      { id: "system3@tests.mozilla.org", version: "3.0", path: "system3_3.xpi" }
+    ],
+    finalState: {
+      blank: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null}
+      ],
+      withAppSet: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null}
+      ],
+      withProfileSet: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null}
+      ],
+      withBothSets: [
+        { isUpgrade: false, version: "1.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: false, version: null}
+      ]
+    }
+  },
+
+  // Tests that a set of system add-ons, some new, some existing gets installed
+  overlapping: {
+    updateList: [
+      { id: "system1@tests.mozilla.org", version: "2.0", path: "system1_2.xpi" },
+      { id: "system2@tests.mozilla.org", version: "2.0", path: "system2_2.xpi" },
+      { id: "system3@tests.mozilla.org", version: "3.0", path: "system3_3.xpi" },
+      { id: "system4@tests.mozilla.org", version: "1.0", path: "system4_1.xpi" }
+    ],
+    finalState: {
+      blank: [
+        { isUpgrade: true, version: "2.0"},
+        { isUpgrade: true, version: "2.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "1.0"},
+        { isUpgrade: false, version: null}
+      ],
+      withAppSet: [
+        { isUpgrade: true, version: "2.0"},
+        { isUpgrade: true, version: "2.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "1.0"},
+        { isUpgrade: false, version: null}
+      ],
+      withProfileSet: [
+        { isUpgrade: true, version: "2.0"},
+        { isUpgrade: true, version: "2.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "1.0"},
+        { isUpgrade: false, version: null}
+      ],
+      withBothSets: [
+        { isUpgrade: true, version: "2.0"},
+        { isUpgrade: true, version: "2.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "1.0"},
+        { isUpgrade: false, version: null}
+      ]
+    }
+  },
+
+  // Specifying an incorrect version should stop us updating anything
+  badVersion: {
+    fails: true,
+    updateList: [
+      { id: "system2@tests.mozilla.org", version: "4.0", path: "system2_3.xpi" },
+      { id: "system3@tests.mozilla.org", version: "3.0", path: "system3_3.xpi" }
+    ],
+  },
+
+  // Specifying an invalid size should stop us updating anything
+  badSize: {
+    fails: true,
+    updateList: [
+      { id: "system2@tests.mozilla.org", version: "3.0", path: "system2_3.xpi", size: 2 },
+      { id: "system3@tests.mozilla.org", version: "3.0", path: "system3_3.xpi" }
+    ],
+  },
+
+  // Specifying an incorrect hash should stop us updating anything
+  badHash: {
+    fails: true,
+    updateList: [
+      { id: "system2@tests.mozilla.org", version: "3.0", path: "system2_3.xpi" },
+      { id: "system3@tests.mozilla.org", version: "3.0", path: "system3_3.xpi", hashFunction: "sha1", hashValue: "205a4c49bd513ebd30594e380c19e86bba1f83e2" }
+    ],
+  },
+
+  // Correct sizes and hashes should work
+  checkSizeHash: {
+    updateList: [
+      { id: "system2@tests.mozilla.org", version: "3.0", path: "system2_3.xpi", size: 4697 },
+      { id: "system3@tests.mozilla.org", version: "3.0", path: "system3_3.xpi", hashFunction: "sha1", hashValue: "a4c7198d56deb315511c02937fd96c696de6cb84" },
+      { id: "system5@tests.mozilla.org", version: "1.0", path: "system5_1.xpi", size: 4691, hashFunction: "sha1", hashValue: "6887b916a1a9a5338b0df4181f6187f5396861eb" }
+    ],
+    finalState: {
+      blank: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "1.0"}
+      ],
+      withAppSet: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "1.0"}
+      ],
+      withProfileSet: [
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "1.0"}
+      ],
+      withBothSets: [
+        { isUpgrade: false, version: "1.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: true, version: "3.0"},
+        { isUpgrade: false, version: null},
+        { isUpgrade: true, version: "1.0"}
+      ]
+    }
+  },
+
+  // A bad certificate should stop updates
+  badCert: {
+    fails: true,
+    updateList: [
+      { id: "system1@tests.mozilla.org", version: "1.0", path: "system1_1_badcert.xpi" },
+      { id: "system3@tests.mozilla.org", version: "1.0", path: "system3_1.xpi" }
+    ],
+  },
+
+  // An unpacked add-on should stop updates.
+  notPacked: {
+    fails: true,
+    updateList: [
+      { id: "system6@tests.mozilla.org", version: "1.0", path: "system6_1_unpack.xpi" },
+      { id: "system3@tests.mozilla.org", version: "1.0", path: "system3_1.xpi" }
+    ],
+  },
+
+  // A non-bootstrap add-on should stop updates.
+  notBootstrap: {
+    fails: true,
+    updateList: [
+      { id: "system6@tests.mozilla.org", version: "1.0", path: "system6_2_notBootstrap.xpi" },
+      { id: "system3@tests.mozilla.org", version: "1.0", path: "system3_1.xpi" }
+    ],
+  },
+
+  // A non-multiprocess add-on should stop updates.
+  notMultiprocess: {
+    fails: true,
+    updateList: [
+      { id: "system6@tests.mozilla.org", version: "1.0", path: "system6_3_notMultiprocess.xpi" },
+      { id: "system3@tests.mozilla.org", version: "1.0", path: "system3_1.xpi" }
+    ],
+  }
+}
+
+add_task(function* setup() {
+  // Initialise the profile
+  startupManager();
+  yield promiseShutdownManager();
+})
+
+function* get_directories() {
+  let subdirs = [];
+
+  if (yield OS.File.exists(updatesDir.path)) {
+    let iterator = new OS.File.DirectoryIterator(updatesDir.path);
+    yield iterator.forEach(entry => {
+      if (entry.isDir) {
+        subdirs.push(entry);
+      }
+    });
+    iterator.close();
+  }
+
+  return subdirs;
+}
+
+function* setup_conditions(setup) {
+  do_print("Clearing existing database.");
+  Services.prefs.clearUserPref(PREF_SYSTEM_ADDON_SET);
+  distroDir.leafName = "empty";
+  startupManager(false);
+  yield promiseShutdownManager();
+
+  do_print("Setting up conditions.");
+  yield setup.setup();
+
+  startupManager(false);
+
+  // Make sure the initial state is correct
+  do_print("Checking initial state.");
+  yield check_installed(setup.initialState);
+}
+
+function* verify_state(initialState, finalState = undefined, alreadyUpgraded = false) {
+  let expectedDirs = 0;
+
+  // If the initial state was using the profile set then that directory will
+  // still exist.
+
+  if (initialState.some(a => a.isUpgrade)) {
+    expectedDirs++;
+  }
+
+  if (finalState == undefined) {
+    finalState = initialState;
+  }
+  else if (finalState.some(a => a.isUpgrade)) {
+    // If the new state is using the profile then that directory will exist.
+    expectedDirs++;
+  }
+
+  // Since upgrades are restartless now, the previous update dir hasn't been removed.
+  if (alreadyUpgraded) {
+    expectedDirs++;
+  }
+
+  do_print("Checking final state.");
+
+  let dirs = yield get_directories();
+  do_check_eq(dirs.length, expectedDirs);
+
+  yield check_installed(...finalState);
+
+  // Check that the new state is active after a restart
+  yield promiseRestartManager();
+  yield check_installed(finalState);
+}
+
+function* exec_test(setupName, testName) {
+  let setup = TEST_CONDITIONS[setupName];
+  let test = TESTS[testName];
+
+  yield setup_conditions(setup);
+
+  try {
+    if ("test" in test) {
+      yield test.test();
+    }
+    else {
+      yield installSystemAddons(yield buildSystemAddonUpdates(test.updateList, root), testserver);
+    }
+
+    if (test.fails) {
+      do_throw("Expected this test to fail");
+    }
+  }
+  catch (e) {
+    if (!test.fails) {
+      do_throw(e);
+    }
+  }
+
+  // some tests have a different expected combination of default
+  // and updated add-ons.
+  if (test.finalState && setupName in test.finalState) {
+    yield verify_state(setup.initialState, test.finalState[setupName]);
+  }
+  else {
+    yield verify_state(setup.initialState, test.finalState);
+  }
+
+  yield promiseShutdownManager();
+}
+
+add_task(function*() {
+  for (let setup of Object.keys(TEST_CONDITIONS)) {
+    for (let test of Object.keys(TESTS)) {
+        do_print("Running test " + setup + " " + test);
+
+        yield exec_test(setup, test);
+    }
+  }
+});
+
+// Some custom tests
+// Test that the update check is performed as part of the regular add-on update
+// check
+add_task(function* test_addon_update() {
+  yield setup_conditions(TEST_CONDITIONS.blank);
+
+  yield updateAllSystemAddons(yield buildSystemAddonUpdates([
+    { id: "system2@tests.mozilla.org", version: "2.0", path: "system2_2.xpi" },
+    { id: "system3@tests.mozilla.org", version: "2.0", path: "system3_2.xpi" }
+  ], root), testserver);
+
+  yield verify_state(TEST_CONDITIONS.blank.initialState, [
+    {isUpgrade: false, version: null},
+    {isUpgrade: true, version: "2.0"},
+    {isUpgrade: true, version: "2.0"},
+    {isUpgrade: false, version: null},
+    {isUpgrade: false, version: null}
+  ]);
+
+  yield promiseShutdownManager();
+});
+
+// Disabling app updates should block system add-on updates
+add_task(function* test_app_update_disabled() {
+  yield setup_conditions(TEST_CONDITIONS.blank);
+
+  Services.prefs.setBoolPref(PREF_APP_UPDATE_ENABLED, false);
+  yield updateAllSystemAddons(yield buildSystemAddonUpdates([
+    { id: "system2@tests.mozilla.org", version: "2.0", path: "system2_2.xpi" },
+    { id: "system3@tests.mozilla.org", version: "2.0", path: "system3_2.xpi" }
+  ], root), testserver);
+  Services.prefs.clearUserPref(PREF_APP_UPDATE_ENABLED);
+
+  yield verify_state(TEST_CONDITIONS.blank.initialState);
+
+  yield promiseShutdownManager();
+});
+
+// Safe mode should block system add-on updates
+add_task(function* test_safe_mode() {
+  gAppInfo.inSafeMode = true;
+
+  yield setup_conditions(TEST_CONDITIONS.blank);
+
+  Services.prefs.setBoolPref(PREF_APP_UPDATE_ENABLED, false);
+  yield updateAllSystemAddons(yield buildSystemAddonUpdates([
+    { id: "system2@tests.mozilla.org", version: "2.0", path: "system2_2.xpi" },
+    { id: "system3@tests.mozilla.org", version: "2.0", path: "system3_2.xpi" }
+  ], root), testserver);
+  Services.prefs.clearUserPref(PREF_APP_UPDATE_ENABLED);
+
+  yield verify_state(TEST_CONDITIONS.blank.initialState);
+
+  yield promiseShutdownManager();
+
+  gAppInfo.inSafeMode = false;
+});
+
+// Tests that a set that matches the default set does nothing
+add_task(function* test_match_default() {
+  yield setup_conditions(TEST_CONDITIONS.withAppSet);
+
+  yield installSystemAddons(yield buildSystemAddonUpdates([
+    { id: "system2@tests.mozilla.org", version: "2.0", path: "system2_2.xpi" },
+    { id: "system3@tests.mozilla.org", version: "2.0", path: "system3_2.xpi" }
+  ], root), testserver);
+
+  // Shouldn't have installed an updated set
+  yield verify_state(TEST_CONDITIONS.withAppSet.initialState);
+
+  yield promiseShutdownManager();
+});
+
+// Tests that a set that matches the hidden default set works
+add_task(function* test_match_default_revert() {
+  yield setup_conditions(TEST_CONDITIONS.withBothSets);
+
+  yield installSystemAddons(yield buildSystemAddonUpdates([
+    { id: "system1@tests.mozilla.org", version: "1.0", path: "system1_1.xpi" },
+    { id: "system2@tests.mozilla.org", version: "1.0", path: "system2_1.xpi" }
+  ], root), testserver);
+
+  // This should revert to the default set instead of installing new versions
+  // into an updated set.
+  yield verify_state(TEST_CONDITIONS.withBothSets.initialState, [
+    {isUpgrade: false, version: "1.0"},
+    {isUpgrade: false, version: "1.0"},
+    {isUpgrade: false, version: null},
+    {isUpgrade: false, version: null},
+    {isUpgrade: false, version: null}
+  ]);
+
+  yield promiseShutdownManager();
+});
+
+// Tests that a set that matches the current set works
+add_task(function* test_match_current() {
+  yield setup_conditions(TEST_CONDITIONS.withBothSets);
+
+  yield installSystemAddons(yield buildSystemAddonUpdates([
+    { id: "system2@tests.mozilla.org", version: "2.0", path: "system2_2.xpi" },
+    { id: "system3@tests.mozilla.org", version: "2.0", path: "system3_2.xpi" }
+  ], root), testserver);
+
+  // This should remain with the current set instead of creating a new copy
+  let set = JSON.parse(Services.prefs.getCharPref(PREF_SYSTEM_ADDON_SET));
+  do_check_eq(set.directory, "prefilled");
+
+  yield verify_state(TEST_CONDITIONS.withBothSets.initialState);
+
+  yield promiseShutdownManager();
+});
+
+// Tests that a set with a minor change doesn't re-download existing files
+add_task(function* test_no_download() {
+  yield setup_conditions(TEST_CONDITIONS.withBothSets);
+
+  // The missing file here is unneeded since there is a local version already
+  yield installSystemAddons(yield buildSystemAddonUpdates([
+    { id: "system2@tests.mozilla.org", version: "2.0", path: "missing.xpi" },
+    { id: "system4@tests.mozilla.org", version: "1.0", path: "system4_1.xpi" }
+  ], root), testserver);
+
+  yield verify_state(TEST_CONDITIONS.withBothSets.initialState, [
+    {isUpgrade: false, version: "1.0"},
+    {isUpgrade: true, version: "2.0"},
+    {isUpgrade: false, version: null},
+    {isUpgrade: true, version: "1.0"},
+    {isUpgrade: false, version: null}
+  ]);
+
+  yield promiseShutdownManager();
+});
+
+// Tests that a second update before a restart works
+add_task(function* test_double_update() {
+  yield setup_conditions(TEST_CONDITIONS.withAppSet);
+
+  yield installSystemAddons(yield buildSystemAddonUpdates([
+    { id: "system2@tests.mozilla.org", version: "2.0", path: "system2_2.xpi" },
+    { id: "system3@tests.mozilla.org", version: "1.0", path: "system3_1.xpi" }
+  ], root), testserver);
+
+  yield installSystemAddons(yield buildSystemAddonUpdates([
+    { id: "system3@tests.mozilla.org", version: "2.0", path: "system3_2.xpi" },
+    { id: "system4@tests.mozilla.org", version: "1.0", path: "system4_1.xpi" }
+  ], root), testserver);
+
+  yield verify_state(TEST_CONDITIONS.withAppSet.initialState, [
+    {isUpgrade: false, version: null},
+    {isUpgrade: false, version: "2.0"},
+    {isUpgrade: true, version: "2.0"},
+    {isUpgrade: true, version: "1.0"},
+    {isUpgrade: false, version: null}
+  ], true);
+
+  yield promiseShutdownManager();
+});
+
+// A second update after a restart will delete the original unused set
+add_task(function* test_update_purges() {
+  yield setup_conditions(TEST_CONDITIONS.withBothSets);
+
+  yield installSystemAddons(yield buildSystemAddonUpdates([
+    { id: "system2@tests.mozilla.org", version: "2.0", path: "system2_2.xpi" },
+    { id: "system3@tests.mozilla.org", version: "1.0", path: "system3_1.xpi" }
+  ], root), testserver);
+
+  yield verify_state(TEST_CONDITIONS.withBothSets.initialState, [
+    {isUpgrade: false, version: "1.0"},
+    {isUpgrade: true, version: "2.0"},
+    {isUpgrade: true, version: "1.0"},
+    {isUpgrade: false, version: null},
+    {isUpgrade: false, version: null}
+  ]);
+
+  yield installSystemAddons(yield buildSystemAddonUpdates(null), testserver);
+
+  let dirs = yield get_directories();
+  do_check_eq(dirs.length, 1);
+
+  yield promiseShutdownManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_targetPlatforms.js b/toolkit/mozapps/webextensions/test/xpcshell/test_targetPlatforms.js
new file mode 100644
index 000000000..ef4f2aee5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_targetPlatforms.js
@@ -0,0 +1,146 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that the targetPlatform entries are checked when deciding
+// if an add-on is incompatible.
+
+// No targetPlatforms so should be compatible
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Matches the OS
+var addon2 = {
+  id: "addon2@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 2",
+  targetPlatforms: [
+    "XPCShell",
+    "WINNT_x86",
+    "XPCShell"
+  ],
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Matches the OS and ABI
+var addon3 = {
+  id: "addon3@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 3",
+  targetPlatforms: [
+    "WINNT",
+    "XPCShell_noarch-spidermonkey"
+  ],
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Doesn't match
+var addon4 = {
+  id: "addon4@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 4",
+  targetPlatforms: [
+    "WINNT_noarch-spidermonkey",
+    "Darwin",
+    "WINNT_noarch-spidermonkey"
+  ],
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+// Matches the OS but since a different entry specifies ABI this doesn't match.
+var addon5 = {
+  id: "addon5@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 5",
+  targetPlatforms: [
+    "XPCShell",
+    "XPCShell_foo"
+  ],
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// Set up the profile
+function run_test() {
+  do_test_pending();
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  writeInstallRDFForExtension(addon2, profileDir);
+  writeInstallRDFForExtension(addon3, profileDir);
+  writeInstallRDFForExtension(addon4, profileDir);
+  writeInstallRDFForExtension(addon5, profileDir);
+
+  restartManager();
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org",
+                               "addon5@tests.mozilla.org"],
+                               function([a1, a2, a3, a4, a5]) {
+
+    do_check_neq(a1, null);
+    do_check_false(a1.appDisabled);
+    do_check_true(a1.isPlatformCompatible);
+    do_check_true(a1.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_in_crash_annotation(addon1.id, addon1.version);
+
+    do_check_neq(a2, null);
+    do_check_false(a2.appDisabled);
+    do_check_true(a2.isPlatformCompatible);
+    do_check_true(a2.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+    do_check_in_crash_annotation(addon2.id, addon2.version);
+
+    do_check_neq(a3, null);
+    do_check_false(a3.appDisabled);
+    do_check_true(a3.isPlatformCompatible);
+    do_check_true(a3.isActive);
+    do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+    do_check_in_crash_annotation(addon3.id, addon3.version);
+
+    do_check_neq(a4, null);
+    do_check_true(a4.appDisabled);
+    do_check_false(a4.isPlatformCompatible);
+    do_check_false(a4.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a4.id));
+    do_check_not_in_crash_annotation(addon4.id, addon4.version);
+
+    do_check_neq(a5, null);
+    do_check_true(a5.appDisabled);
+    do_check_false(a5.isPlatformCompatible);
+    do_check_false(a5.isActive);
+    do_check_false(isExtensionInAddonsList(profileDir, a5.id));
+    do_check_not_in_crash_annotation(addon5.id, addon5.version);
+
+    do_execute_soon(do_test_finished);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_temporary.js b/toolkit/mozapps/webextensions/test/xpcshell/test_temporary.js
new file mode 100644
index 000000000..ec9e25a0b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_temporary.js
@@ -0,0 +1,760 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const ID = "bootstrap1@tests.mozilla.org";
+const sampleRDFManifest = {
+  id: ID,
+  version: "1.0",
+  bootstrap: true,
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }],
+  name: "Test Bootstrap 1 (temporary)",
+};
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+startupManager();
+
+const {Management} = Components.utils.import("resource://gre/modules/Extension.jsm", {});
+
+function promiseAddonStartup() {
+  return new Promise(resolve => {
+    let listener = (extension) => {
+      Management.off("startup", listener);
+      resolve(extension);
+    };
+
+    Management.on("startup", listener);
+  });
+}
+
+BootstrapMonitor.init();
+
+// Partial list of bootstrap reasons from XPIProvider.jsm
+const BOOTSTRAP_REASONS = {
+  ADDON_INSTALL: 5,
+  ADDON_UPGRADE: 7,
+  ADDON_DOWNGRADE: 8,
+};
+
+function waitForBootstrapEvent(expectedEvent, addonId) {
+  return new Promise(resolve => {
+    const observer = {
+      observe: (subject, topic, data) => {
+        const info = JSON.parse(data);
+        const targetAddonId = info.data.id;
+        if (targetAddonId === addonId && info.event === expectedEvent) {
+          resolve(info);
+          Services.obs.removeObserver(observer);
+        } else {
+          do_print(
+            `Ignoring bootstrap event: ${info.event} for ${targetAddonId}`);
+        }
+      },
+    };
+    Services.obs.addObserver(observer, "bootstrapmonitor-event", false);
+  });
+}
+
+// Install a temporary add-on with no existing add-on present.
+// Restart and make sure it has gone away.
+add_task(function*() {
+  let extInstallCalled = false;
+  AddonManager.addInstallListener({
+    onExternalInstall: (aInstall) => {
+      do_check_eq(aInstall.id, ID);
+      do_check_eq(aInstall.version, "1.0");
+      extInstallCalled = true;
+    },
+  });
+
+  let installingCalled = false;
+  let installedCalled = false;
+  AddonManager.addAddonListener({
+    onInstalling: (aInstall) => {
+      do_check_eq(aInstall.id, ID);
+      do_check_eq(aInstall.version, "1.0");
+      installingCalled = true;
+    },
+    onInstalled: (aInstall) => {
+      do_check_eq(aInstall.id, ID);
+      do_check_eq(aInstall.version, "1.0");
+      installedCalled = true;
+    },
+    onInstallStarted: (aInstall) => {
+      do_throw("onInstallStarted called unexpectedly");
+    }
+  });
+
+  yield AddonManager.installTemporaryAddon(do_get_addon("test_bootstrap1_1"));
+
+  do_check_true(extInstallCalled);
+  do_check_true(installingCalled);
+  do_check_true(installedCalled);
+
+  const install = BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  equal(install.reason, BOOTSTRAP_REASONS.ADDON_INSTALL);
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  let addon = yield promiseAddonByID(ID);
+
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Bootstrap 1");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  yield promiseRestartManager();
+
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  addon = yield promiseAddonByID(ID);
+  do_check_eq(addon, null);
+
+  yield promiseRestartManager();
+});
+
+// Install a temporary add-on over the top of an existing add-on.
+// Restart and make sure the existing add-on comes back.
+add_task(function*() {
+  yield promiseInstallAllFiles([do_get_addon("test_bootstrap1_1")], true);
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  let addon = yield promiseAddonByID(ID);
+
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Bootstrap 1");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  let tempdir = gTmpD.clone();
+
+  // test that an unpacked add-on works too
+  writeInstallRDFToDir({
+    id: ID,
+    version: "3.0",
+    bootstrap: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Bootstrap 1 (temporary)",
+  }, tempdir, "bootstrap1@tests.mozilla.org", "bootstrap.js");
+
+  let unpacked_addon = tempdir.clone();
+  unpacked_addon.append(ID);
+  do_get_file("data/test_temporary/bootstrap.js")
+    .copyTo(unpacked_addon, "bootstrap.js");
+
+  yield AddonManager.installTemporaryAddon(unpacked_addon);
+
+  BootstrapMonitor.checkAddonInstalled(ID, "3.0");
+  BootstrapMonitor.checkAddonStarted(ID, "3.0");
+
+  addon = yield promiseAddonByID(ID);
+
+  // temporary add-on is installed and started
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "3.0");
+  do_check_eq(addon.name, "Test Bootstrap 1 (temporary)");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  restartManager();
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  addon = yield promiseAddonByID(ID);
+
+  // existing add-on is back
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Bootstrap 1");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  unpacked_addon.remove(true);
+
+  // on Windows XPI files will be locked by the JAR cache, skip this test there.
+  if (!("nsIWindowsRegKey" in Components.interfaces)) {
+    // test that a packed (XPI) add-on works
+    writeInstallRDFToXPI({
+      id: ID,
+      version: "2.0",
+      bootstrap: true,
+      targetApplications: [{
+        id: "xpcshell@tests.mozilla.org",
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Bootstrap 1 (temporary)",
+    }, tempdir, "bootstrap1@tests.mozilla.org");
+
+    let packed_addon = tempdir.clone();
+    packed_addon.append(ID + ".xpi");
+
+    yield AddonManager.installTemporaryAddon(packed_addon);
+
+    addon = yield promiseAddonByID(ID);
+
+    // temporary add-on is installed and started
+    do_check_neq(addon, null);
+    do_check_eq(addon.version, "2.0");
+    do_check_eq(addon.name, "Test Bootstrap 1 (temporary)");
+    do_check_true(addon.isCompatible);
+    do_check_false(addon.appDisabled);
+    do_check_true(addon.isActive);
+    do_check_eq(addon.type, "extension");
+    do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+    restartManager();
+
+    BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+    addon = yield promiseAddonByID(ID);
+
+    // existing add-on is back
+    do_check_neq(addon, null);
+    do_check_eq(addon.version, "1.0");
+    do_check_eq(addon.name, "Test Bootstrap 1");
+    do_check_true(addon.isCompatible);
+    do_check_false(addon.appDisabled);
+    do_check_true(addon.isActive);
+    do_check_eq(addon.type, "extension");
+    do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+    packed_addon.remove(false);
+
+    // test that a webextension works
+    let webext = createTempWebExtensionFile({
+      manifest: {
+        version: "4.0",
+        name: "Test WebExtension 1 (temporary)",
+        applications: {
+          gecko: {
+            id: ID
+          }
+        }
+      }
+    });
+
+    yield Promise.all([
+      AddonManager.installTemporaryAddon(webext),
+      promiseAddonStartup(),
+    ]);
+    addon = yield promiseAddonByID(ID);
+
+    // temporary add-on is installed and started
+    do_check_neq(addon, null);
+    do_check_eq(addon.version, "4.0");
+    do_check_eq(addon.name, "Test WebExtension 1 (temporary)");
+    do_check_true(addon.isCompatible);
+    do_check_false(addon.appDisabled);
+    do_check_true(addon.isActive);
+    do_check_eq(addon.type, "extension");
+    do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+    // test that re-loading a webextension works, using the same filename
+    webext.remove(false);
+    webext = createTempWebExtensionFile({
+      manifest: {
+        version: "5.0",
+        name: "Test WebExtension 1 (temporary)",
+        applications: {
+          gecko: {
+            id: ID
+          }
+        }
+      }
+    });
+
+    yield Promise.all([
+      AddonManager.installTemporaryAddon(webext),
+      promiseAddonStartup(),
+    ]);
+    addon = yield promiseAddonByID(ID);
+
+    // temporary add-on is installed and started
+    do_check_neq(addon, null);
+    do_check_eq(addon.version, "5.0");
+    do_check_eq(addon.name, "Test WebExtension 1 (temporary)");
+    do_check_true(addon.isCompatible);
+    do_check_false(addon.appDisabled);
+    do_check_true(addon.isActive);
+    do_check_eq(addon.type, "extension");
+    do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+    restartManager();
+
+    BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+    BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+    addon = yield promiseAddonByID(ID);
+
+    // existing add-on is back
+    do_check_neq(addon, null);
+    do_check_eq(addon.version, "1.0");
+    do_check_eq(addon.name, "Test Bootstrap 1");
+    do_check_true(addon.isCompatible);
+    do_check_false(addon.appDisabled);
+    do_check_true(addon.isActive);
+    do_check_eq(addon.type, "extension");
+    do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+  }
+
+  // remove original add-on
+  addon.uninstall();
+
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  yield promiseRestartManager();
+});
+
+// Install a temporary add-on over the top of an existing add-on.
+// Uninstall it and make sure the existing add-on comes back.
+add_task(function*() {
+  yield promiseInstallAllFiles([do_get_addon("test_bootstrap1_1")], true);
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  let tempdir = gTmpD.clone();
+  writeInstallRDFToDir({
+    id: ID,
+    version: "2.0",
+    bootstrap: true,
+    unpack: true,
+    targetApplications: [{
+          id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+        }],
+    name: "Test Bootstrap 1 (temporary)",
+  }, tempdir);
+
+  let unpacked_addon = tempdir.clone();
+  unpacked_addon.append(ID);
+
+  let extInstallCalled = false;
+  AddonManager.addInstallListener({
+    onExternalInstall: (aInstall) => {
+      do_check_eq(aInstall.id, ID);
+      do_check_eq(aInstall.version, "2.0");
+      extInstallCalled = true;
+    },
+  });
+
+  let installingCalled = false;
+  let installedCalled = false;
+  AddonManager.addAddonListener({
+    onInstalling: (aInstall) => {
+      do_check_eq(aInstall.id, ID);
+      if (!installingCalled)
+        do_check_eq(aInstall.version, "2.0");
+      installingCalled = true;
+    },
+    onInstalled: (aInstall) => {
+      do_check_eq(aInstall.id, ID);
+      if (!installedCalled)
+        do_check_eq(aInstall.version, "2.0");
+      installedCalled = true;
+    },
+    onInstallStarted: (aInstall) => {
+      do_throw("onInstallStarted called unexpectedly");
+    }
+  });
+
+  yield AddonManager.installTemporaryAddon(unpacked_addon);
+
+  do_check_true(extInstallCalled);
+  do_check_true(installingCalled);
+  do_check_true(installedCalled);
+
+  let addon = yield promiseAddonByID(ID);
+
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  // temporary add-on is installed and started
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "2.0");
+  do_check_eq(addon.name, "Test Bootstrap 1 (temporary)");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  addon.uninstall();
+
+  addon = yield promiseAddonByID(ID);
+
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonStarted(ID);
+
+  // existing add-on is back
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Bootstrap 1");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  unpacked_addon.remove(true);
+  addon.uninstall();
+
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  yield promiseRestartManager();
+});
+
+// Install a temporary add-on as a version upgrade over the top of an
+// existing temporary add-on.
+add_task(function*() {
+  const tempdir = gTmpD.clone();
+
+  writeInstallRDFToDir(sampleRDFManifest, tempdir,
+                       "bootstrap1@tests.mozilla.org", "bootstrap.js");
+
+  const unpackedAddon = tempdir.clone();
+  unpackedAddon.append(ID);
+  do_get_file("data/test_temporary/bootstrap.js")
+    .copyTo(unpackedAddon, "bootstrap.js");
+
+  yield AddonManager.installTemporaryAddon(unpackedAddon);
+
+  // Increment the version number, re-install it, and make sure it
+  // gets marked as an upgrade.
+  writeInstallRDFToDir(Object.assign({}, sampleRDFManifest, {
+    version: "2.0"
+  }), tempdir, "bootstrap1@tests.mozilla.org");
+
+  const onUninstall = waitForBootstrapEvent("uninstall", ID);
+  const onInstall = waitForBootstrapEvent("install", ID);
+  yield AddonManager.installTemporaryAddon(unpackedAddon);
+
+  const uninstall = yield onUninstall;
+  equal(uninstall.data.version, "1.0");
+  equal(uninstall.reason, BOOTSTRAP_REASONS.ADDON_UPGRADE);
+
+  const install = yield onInstall;
+  equal(install.data.version, "2.0");
+  equal(install.reason, BOOTSTRAP_REASONS.ADDON_UPGRADE);
+
+  const addon = yield promiseAddonByID(ID);
+  addon.uninstall();
+
+  unpackedAddon.remove(true);
+  yield promiseRestartManager();
+});
+
+// Install a temporary add-on as a version downgrade over the top of an
+// existing temporary add-on.
+add_task(function*() {
+  const tempdir = gTmpD.clone();
+
+  writeInstallRDFToDir(sampleRDFManifest, tempdir,
+                       "bootstrap1@tests.mozilla.org", "bootstrap.js");
+
+  const unpackedAddon = tempdir.clone();
+  unpackedAddon.append(ID);
+  do_get_file("data/test_temporary/bootstrap.js")
+    .copyTo(unpackedAddon, "bootstrap.js");
+
+  yield AddonManager.installTemporaryAddon(unpackedAddon);
+
+  // Decrement the version number, re-install, and make sure
+  // it gets marked as a downgrade.
+  writeInstallRDFToDir(Object.assign({}, sampleRDFManifest, {
+    version: "0.8"
+  }), tempdir, "bootstrap1@tests.mozilla.org");
+
+  const onUninstall = waitForBootstrapEvent("uninstall", ID);
+  const onInstall = waitForBootstrapEvent("install", ID);
+  yield AddonManager.installTemporaryAddon(unpackedAddon);
+
+  const uninstall = yield onUninstall;
+  equal(uninstall.data.version, "1.0");
+  equal(uninstall.reason, BOOTSTRAP_REASONS.ADDON_DOWNGRADE);
+
+  const install = yield onInstall;
+  equal(install.data.version, "0.8");
+  equal(install.reason, BOOTSTRAP_REASONS.ADDON_DOWNGRADE);
+
+  const addon = yield promiseAddonByID(ID);
+  addon.uninstall();
+
+  unpackedAddon.remove(true);
+  yield promiseRestartManager();
+});
+
+// Installing a temporary add-on over an existing add-on with the same
+// version number should be installed as an upgrade.
+add_task(function*() {
+  const tempdir = gTmpD.clone();
+
+  writeInstallRDFToDir(sampleRDFManifest, tempdir,
+                       "bootstrap1@tests.mozilla.org", "bootstrap.js");
+
+  const unpackedAddon = tempdir.clone();
+  unpackedAddon.append(ID);
+  do_get_file("data/test_temporary/bootstrap.js")
+    .copyTo(unpackedAddon, "bootstrap.js");
+
+  const onInitialInstall = waitForBootstrapEvent("install", ID);
+  yield AddonManager.installTemporaryAddon(unpackedAddon);
+
+  const initialInstall = yield onInitialInstall;
+  equal(initialInstall.data.version, "1.0");
+  equal(initialInstall.reason, BOOTSTRAP_REASONS.ADDON_INSTALL);
+
+  // Install it again.
+  const onUninstall = waitForBootstrapEvent("uninstall", ID);
+  const onInstall = waitForBootstrapEvent("install", ID);
+  yield AddonManager.installTemporaryAddon(unpackedAddon);
+
+  const uninstall = yield onUninstall;
+  equal(uninstall.data.version, "1.0");
+  equal(uninstall.reason, BOOTSTRAP_REASONS.ADDON_UPGRADE);
+
+  const reInstall = yield onInstall;
+  equal(reInstall.data.version, "1.0");
+  equal(reInstall.reason, BOOTSTRAP_REASONS.ADDON_UPGRADE);
+
+  const addon = yield promiseAddonByID(ID);
+  addon.uninstall();
+
+  unpackedAddon.remove(true);
+  yield promiseRestartManager();
+});
+
+// Install a temporary add-on over the top of an existing disabled add-on.
+// After restart, the existing add-on should continue to be installed and disabled.
+add_task(function*() {
+  yield promiseInstallAllFiles([do_get_addon("test_bootstrap1_1")], true);
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  let addon = yield promiseAddonByID(ID);
+
+  addon.userDisabled = true;
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  let tempdir = gTmpD.clone();
+  writeInstallRDFToDir({
+    id: ID,
+    version: "2.0",
+    bootstrap: true,
+    unpack: true,
+    targetApplications: [{
+          id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+        }],
+    name: "Test Bootstrap 1 (temporary)",
+  }, tempdir, "bootstrap1@tests.mozilla.org", "bootstrap.js");
+
+  let unpacked_addon = tempdir.clone();
+  unpacked_addon.append(ID);
+  do_get_file("data/test_temporary/bootstrap.js")
+    .copyTo(unpacked_addon, "bootstrap.js");
+
+  let extInstallCalled = false;
+  AddonManager.addInstallListener({
+    onExternalInstall: (aInstall) => {
+      do_check_eq(aInstall.id, ID);
+      do_check_eq(aInstall.version, "2.0");
+      extInstallCalled = true;
+    },
+  });
+
+  yield AddonManager.installTemporaryAddon(unpacked_addon);
+
+  do_check_true(extInstallCalled);
+
+  let tempAddon = yield promiseAddonByID(ID);
+
+  BootstrapMonitor.checkAddonInstalled(ID, "2.0");
+  BootstrapMonitor.checkAddonStarted(ID);
+
+  // temporary add-on is installed and started
+  do_check_neq(tempAddon, null);
+  do_check_eq(tempAddon.version, "2.0");
+  do_check_eq(tempAddon.name, "Test Bootstrap 1 (temporary)");
+  do_check_true(tempAddon.isCompatible);
+  do_check_false(tempAddon.appDisabled);
+  do_check_true(tempAddon.isActive);
+  do_check_eq(tempAddon.type, "extension");
+  do_check_eq(tempAddon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  tempAddon.uninstall();
+  unpacked_addon.remove(true);
+
+  addon.userDisabled = false;
+  addon = yield promiseAddonByID(ID);
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID);
+
+  // existing add-on is back
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Bootstrap 1");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  addon.uninstall();
+
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  yield promiseRestartManager();
+});
+
+// Installing a temporary add-on over a non-restartless add-on should fail.
+add_task(function*() {
+  yield promiseInstallAllFiles([do_get_addon("test_install1")], true);
+
+  let non_restartless_ID = "addon1@tests.mozilla.org";
+
+  BootstrapMonitor.checkAddonNotInstalled(non_restartless_ID);
+  BootstrapMonitor.checkAddonNotStarted(non_restartless_ID);
+
+  restartManager();
+
+  BootstrapMonitor.checkAddonNotInstalled(non_restartless_ID);
+  BootstrapMonitor.checkAddonNotStarted(non_restartless_ID);
+
+  let addon = yield promiseAddonByID(non_restartless_ID);
+
+  // non-restartless add-on is installed and started
+  do_check_neq(addon, null);
+  do_check_eq(addon.id, non_restartless_ID);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test 1");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  let tempdir = gTmpD.clone();
+  writeInstallRDFToDir({
+    id: non_restartless_ID,
+    version: "2.0",
+    bootstrap: true,
+    unpack: true,
+    targetApplications: [{
+          id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+        }],
+    name: "Test 1 (temporary)",
+  }, tempdir);
+
+  let unpacked_addon = tempdir.clone();
+  unpacked_addon.append(non_restartless_ID);
+
+  try {
+    yield AddonManager.installTemporaryAddon(unpacked_addon);
+    do_throw("Installing over a non-restartless add-on should return"
+             + " a rejected promise");
+  } catch (err) {
+    do_check_eq(err.message,
+        "Non-restartless add-on with ID addon1@tests.mozilla.org is"
+        + " already installed");
+  }
+
+  unpacked_addon.remove(true);
+  addon.uninstall();
+
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+
+  yield promiseRestartManager();
+});
+
+// Installing a temporary add-on when there is already a temporary
+// add-on should fail.
+add_task(function*() {
+  yield AddonManager.installTemporaryAddon(do_get_addon("test_bootstrap1_1"));
+
+  let addon = yield promiseAddonByID(ID);
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Test Bootstrap 1");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_eq(addon.type, "extension");
+  do_check_false(addon.isWebExtension);
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  yield AddonManager.installTemporaryAddon(do_get_addon("test_bootstrap1_1"));
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  yield promiseRestartManager();
+
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+});
+
+// Check that a temporary add-on is marked as such.
+add_task(function*() {
+  yield AddonManager.installTemporaryAddon(do_get_addon("test_bootstrap1_1"));
+  const addon = yield promiseAddonByID(ID);
+
+  notEqual(addon, null);
+  equal(addon.temporarilyInstalled, true);
+
+  yield promiseRestartManager();
+});
+
+// Check that a permanent add-on is not marked as temporarily installed.
+add_task(function*() {
+  yield promiseInstallAllFiles([do_get_addon("test_bootstrap1_1")], true);
+  const addon = yield promiseAddonByID(ID);
+
+  notEqual(addon, null);
+  equal(addon.temporarilyInstalled, false);
+
+  yield promiseRestartManager();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_theme.js b/toolkit/mozapps/webextensions/test/xpcshell/test_theme.js
new file mode 100644
index 000000000..84d6f1d0d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_theme.js
@@ -0,0 +1,1139 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/NetUtil.jsm");
+
+// The maximum allowable time since install. If an add-on claims to have been
+// installed longer ago than this the the test will fail.
+const MAX_INSTALL_TIME = 10000;
+
+// This verifies that themes behave as expected
+
+const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
+
+Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// Observer to ensure a "lightweight-theme-styling-update" notification is sent
+// when expected
+var gLWThemeChanged = false;
+var LightweightThemeObserver = {
+  observe: function(aSubject, aTopic, aData) {
+    if (aTopic != "lightweight-theme-styling-update")
+      return;
+
+    gLWThemeChanged = true;
+  }
+};
+
+AM_Cc["@mozilla.org/observer-service;1"]
+     .getService(Components.interfaces.nsIObserverService)
+     .addObserver(LightweightThemeObserver, "lightweight-theme-styling-update", false);
+
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  Services.prefs.setCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN, "theme1/1.0");
+  writeInstallRDFForExtension({
+    id: "theme1@tests.mozilla.org",
+    version: "1.0",
+    name: "Test 1",
+    type: 4,
+    skinnable: true,
+    internalName: "theme1/1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "theme2@tests.mozilla.org",
+    version: "1.0",
+    name: "Test 1",
+    skinnable: false,
+    internalName: "theme2/1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  }, profileDir);
+
+  // We need a default theme for some of these things to work but we have hidden
+  // the one in the application directory.
+  writeInstallRDFForExtension({
+    id: "default@tests.mozilla.org",
+    version: "1.0",
+    name: "Default",
+    internalName: "classic/1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  }, profileDir);
+
+  startupManager();
+  // Make sure we only register once despite multiple calls
+  AddonManager.addInstallListener(InstallListener);
+  AddonManager.addAddonListener(AddonListener);
+  AddonManager.addInstallListener(InstallListener);
+  AddonManager.addAddonListener(AddonListener);
+  AddonManager.addInstallListener(InstallListener);
+
+  AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                               "theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"],
+                               function([d, t1, t2]) {
+    do_check_neq(d, null);
+    do_check_false(d.skinnable);
+    do_check_false(d.foreignInstall);
+    do_check_eq(d.signedState, undefined);
+
+    do_check_neq(t1, null);
+    do_check_false(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_eq(t1.signedState, undefined);
+    do_check_true(t1.isActive);
+    do_check_true(t1.skinnable);
+    do_check_true(t1.foreignInstall);
+    do_check_eq(t1.screenshots, null);
+    do_check_true(isThemeInAddonsList(profileDir, t1.id));
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_eq(t1.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_UNINSTALL |
+                                               AddonManager.OP_NEEDS_RESTART_DISABLE);
+
+    do_check_neq(t2, null);
+    do_check_true(t2.userDisabled);
+    do_check_false(t2.appDisabled);
+    do_check_eq(t2.signedState, undefined);
+    do_check_false(t2.isActive);
+    do_check_false(t2.skinnable);
+    do_check_true(t2.foreignInstall);
+    do_check_eq(t2.screenshots, null);
+    do_check_false(isThemeInAddonsList(profileDir, t2.id));
+    do_check_false(hasFlag(t2.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(t2.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_eq(t2.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_ENABLE);
+
+    do_execute_soon(run_test_1);
+  });
+}
+
+function end_test() {
+  do_execute_soon(do_test_finished);
+}
+
+// Checks enabling one theme disables the others
+function run_test_1() {
+  prepare_test({
+    "theme1@tests.mozilla.org": [
+      "onDisabling"
+    ],
+    "theme2@tests.mozilla.org": [
+      "onEnabling"
+    ]
+  });
+  AddonManager.getAddonsByIDs(["theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([t1, t2]) {
+    t2.userDisabled = false;
+
+    ensure_test_completed();
+    do_check_false(hasFlag(t2.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(t2.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_true(t1.userDisabled);
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(t1.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_execute_soon(check_test_1);
+  });
+}
+
+function check_test_1() {
+  restartManager();
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "theme2/1.0");
+
+  AddonManager.getAddonsByIDs(["theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([t1, t2]) {
+    do_check_neq(t1, null);
+    do_check_true(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_false(t1.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, t1.id));
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(t1.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_eq(t1.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_ENABLE);
+
+    do_check_neq(t2, null);
+    do_check_false(t2.userDisabled);
+    do_check_false(t2.appDisabled);
+    do_check_true(t2.isActive);
+    do_check_true(isThemeInAddonsList(profileDir, t2.id));
+    do_check_false(hasFlag(t2.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_false(hasFlag(t2.permissions, AddonManager.PERM_CAN_ENABLE));
+    do_check_eq(t2.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_UNINSTALL |
+                                               AddonManager.OP_NEEDS_RESTART_DISABLE);
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+// Removing the active theme should fall back to the default (not ideal in this
+// case since we don't have the default theme installed)
+function run_test_2() {
+  var dest = profileDir.clone();
+  dest.append(do_get_expected_addon_name("theme2@tests.mozilla.org"));
+  dest.remove(true);
+
+  restartManager();
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  AddonManager.getAddonsByIDs(["theme1@tests.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([t1, t2]) {
+    do_check_neq(t1, null);
+    do_check_true(t1.userDisabled);
+    do_check_false(t1.appDisabled);
+    do_check_false(t1.isActive);
+    do_check_false(isThemeInAddonsList(profileDir, t1.id));
+    do_check_false(hasFlag(t1.permissions, AddonManager.PERM_CAN_DISABLE));
+    do_check_true(hasFlag(t1.permissions, AddonManager.PERM_CAN_ENABLE));
+
+    do_check_eq(t2, null);
+    do_check_false(isThemeInAddonsList(profileDir, "theme2@tests.mozilla.org"));
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Installing a lightweight theme should happen instantly and disable the default theme
+function run_test_3() {
+  writeInstallRDFForExtension({
+    id: "theme2@tests.mozilla.org",
+    version: "1.0",
+    name: "Test 1",
+    internalName: "theme2/1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }]
+  }, profileDir);
+  restartManager();
+
+  prepare_test({
+    "1@personas.mozilla.org": [
+      ["onInstalling", false],
+      "onInstalled",
+      ["onEnabling", false],
+      "onEnabled"
+    ],
+    "default@tests.mozilla.org": [
+      ["onDisabling", false],
+      "onDisabled",
+    ]
+  }, [
+    "onExternalInstall"
+  ]);
+
+  LightweightThemeManager.currentTheme = {
+    id: "1",
+    version: "1",
+    name: "Test LW Theme",
+    description: "A test theme",
+    author: "Mozilla",
+    homepageURL: "http://localhost/data/index.html",
+    headerURL: "http://localhost/data/header.png",
+    footerURL: "http://localhost/data/footer.png",
+    previewURL: "http://localhost/data/preview.png",
+    iconURL: "http://localhost/data/icon.png"
+  };
+
+  ensure_test_completed();
+
+  AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+    do_check_neq(null, p1);
+    do_check_eq(p1.name, "Test LW Theme");
+    do_check_eq(p1.version, "1");
+    do_check_eq(p1.type, "theme");
+    do_check_eq(p1.description, "A test theme");
+    do_check_eq(p1.creator, "Mozilla");
+    do_check_eq(p1.homepageURL, "http://localhost/data/index.html");
+    do_check_eq(p1.iconURL, "http://localhost/data/icon.png");
+    do_check_eq(p1.screenshots.length, 1);
+    do_check_eq(p1.screenshots[0], "http://localhost/data/preview.png");
+    do_check_false(p1.appDisabled);
+    do_check_false(p1.userDisabled);
+    do_check_true(p1.isCompatible);
+    do_check_true(p1.providesUpdatesSecurely);
+    do_check_eq(p1.blocklistState, 0);
+    do_check_true(p1.isActive);
+    do_check_eq(p1.pendingOperations, 0);
+    do_check_eq(p1.permissions, AddonManager.PERM_CAN_UNINSTALL | AddonManager.PERM_CAN_DISABLE);
+    do_check_eq(p1.scope, AddonManager.SCOPE_PROFILE);
+    do_check_true("isCompatibleWith" in p1);
+    do_check_true("findUpdates" in p1);
+    do_check_eq(p1.installDate.getTime(), p1.updateDate.getTime());
+
+    // Should have been installed sometime in the last few seconds.
+    let difference = Date.now() - p1.installDate.getTime();
+    if (difference > MAX_INSTALL_TIME)
+      do_throw("Add-on was installed " + difference + "ms ago");
+    else if (difference < 0)
+      do_throw("Add-on was installed " + difference + "ms in the future");
+
+    AddonManager.getAddonsByTypes(["theme"], function(addons) {
+      let seen = false;
+      addons.forEach(function(a) {
+        if (a.id == "1@personas.mozilla.org") {
+          seen = true;
+        }
+        else {
+          dump("Checking theme " + a.id + "\n");
+          do_check_false(a.isActive);
+          do_check_true(a.userDisabled);
+        }
+      });
+      do_check_true(seen);
+
+      do_check_true(gLWThemeChanged);
+      gLWThemeChanged = false;
+
+      do_execute_soon(run_test_4);
+    });
+  });
+}
+
+// Installing a second lightweight theme should disable the first with no restart
+function run_test_4() {
+  prepare_test({
+    "1@personas.mozilla.org": [
+      ["onDisabling", false],
+      "onDisabled",
+    ],
+    "2@personas.mozilla.org": [
+      ["onInstalling", false],
+      "onInstalled",
+      ["onEnabling", false],
+      "onEnabled"
+    ]
+  }, [
+    "onExternalInstall"
+  ]);
+
+  LightweightThemeManager.currentTheme = {
+    id: "2",
+    version: "1",
+    name: "Test LW Theme",
+    description: "A second test theme",
+    author: "Mozilla",
+    homepageURL: "http://localhost/data/index.html",
+    headerURL: "http://localhost/data/header.png",
+    footerURL: "http://localhost/data/footer.png",
+    previewURL: "http://localhost/data/preview.png",
+    iconURL: "http://localhost/data/icon.png"
+  };
+
+  ensure_test_completed();
+
+  AddonManager.getAddonsByIDs(["1@personas.mozilla.org",
+                               "2@personas.mozilla.org"], function([p1, p2]) {
+    do_check_neq(null, p2);
+    do_check_false(p2.appDisabled);
+    do_check_false(p2.userDisabled);
+    do_check_true(p2.isActive);
+    do_check_eq(p2.pendingOperations, 0);
+    do_check_eq(p2.permissions, AddonManager.PERM_CAN_UNINSTALL | AddonManager.PERM_CAN_DISABLE);
+    do_check_eq(p2.installDate.getTime(), p2.updateDate.getTime());
+
+    // Should have been installed sometime in the last few seconds.
+    let difference = Date.now() - p2.installDate.getTime();
+    if (difference > MAX_INSTALL_TIME)
+      do_throw("Add-on was installed " + difference + "ms ago");
+    else if (difference < 0)
+      do_throw("Add-on was installed " + difference + "ms in the future");
+
+    do_check_neq(null, p1);
+    do_check_false(p1.appDisabled);
+    do_check_true(p1.userDisabled);
+    do_check_false(p1.isActive);
+    do_check_eq(p1.pendingOperations, 0);
+    do_check_eq(p1.permissions, AddonManager.PERM_CAN_UNINSTALL | AddonManager.PERM_CAN_ENABLE);
+
+    AddonManager.getAddonsByTypes(["theme"], function(addons) {
+      let seen = false;
+      addons.forEach(function(a) {
+        if (a.id == "2@personas.mozilla.org") {
+          seen = true;
+        }
+        else {
+          dump("Checking theme " + a.id + "\n");
+          do_check_false(a.isActive);
+          do_check_true(a.userDisabled);
+        }
+      });
+      do_check_true(seen);
+
+      do_check_true(gLWThemeChanged);
+      gLWThemeChanged = false;
+
+      do_execute_soon(run_test_5);
+    });
+  });
+}
+
+// Switching to a custom theme should disable the lightweight theme and require
+// a restart. Cancelling that should also be possible.
+function run_test_5() {
+  prepare_test({
+    "2@personas.mozilla.org": [
+      "onDisabling",
+    ],
+    "theme2@tests.mozilla.org": [
+      "onEnabling"
+    ]
+  });
+
+  AddonManager.getAddonsByIDs(["2@personas.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([p2, t2]) {
+    t2.userDisabled = false;
+
+    ensure_test_completed();
+
+    prepare_test({
+      "2@personas.mozilla.org": [
+        "onOperationCancelled",
+      ],
+      "theme2@tests.mozilla.org": [
+        "onOperationCancelled"
+      ]
+    });
+
+    p2.userDisabled = false;
+
+    ensure_test_completed();
+
+    prepare_test({
+      "2@personas.mozilla.org": [
+        "onDisabling",
+      ],
+      "theme2@tests.mozilla.org": [
+        "onEnabling"
+      ]
+    });
+
+    t2.userDisabled = false;
+
+    ensure_test_completed();
+
+    do_check_false(t2.isActive);
+    do_check_false(t2.userDisabled);
+    do_check_true(hasFlag(AddonManager.PENDING_ENABLE, t2.pendingOperations));
+    do_check_true(p2.isActive);
+    do_check_true(p2.userDisabled);
+    do_check_true(hasFlag(AddonManager.PENDING_DISABLE, p2.pendingOperations));
+    do_check_true(hasFlag(AddonManager.PERM_CAN_ENABLE, p2.permissions));
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(check_test_5);
+  });
+}
+
+function check_test_5() {
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["2@personas.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([p2, t2]) {
+    do_check_true(t2.isActive);
+    do_check_false(t2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_ENABLE, t2.pendingOperations));
+    do_check_false(p2.isActive);
+    do_check_true(p2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_DISABLE, p2.pendingOperations));
+
+    do_check_true(gLWThemeChanged);
+    gLWThemeChanged = false;
+
+    do_execute_soon(run_test_6);
+  });
+}
+
+// Switching from a custom theme to a lightweight theme should require a restart
+function run_test_6() {
+  prepare_test({
+    "2@personas.mozilla.org": [
+      "onEnabling",
+    ],
+    "theme2@tests.mozilla.org": [
+      "onDisabling"
+    ]
+  });
+
+  AddonManager.getAddonsByIDs(["2@personas.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([p2, t2]) {
+    p2.userDisabled = false;
+
+    ensure_test_completed();
+
+    prepare_test({
+      "2@personas.mozilla.org": [
+        "onOperationCancelled",
+      ],
+      "theme2@tests.mozilla.org": [
+        "onOperationCancelled"
+      ]
+    });
+
+    t2.userDisabled = false;
+
+    ensure_test_completed();
+
+    prepare_test({
+      "2@personas.mozilla.org": [
+        "onEnabling",
+      ],
+      "theme2@tests.mozilla.org": [
+        "onDisabling"
+      ]
+    });
+
+    p2.userDisabled = false;
+
+    ensure_test_completed();
+
+    do_check_false(p2.isActive);
+    do_check_false(p2.userDisabled);
+    do_check_true(hasFlag(AddonManager.PENDING_ENABLE, p2.pendingOperations));
+    do_check_true(t2.isActive);
+    do_check_true(t2.userDisabled);
+    do_check_true(hasFlag(AddonManager.PENDING_DISABLE, t2.pendingOperations));
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(check_test_6);
+  });
+}
+
+function check_test_6() {
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["2@personas.mozilla.org",
+                               "theme2@tests.mozilla.org"], function([p2, t2]) {
+    do_check_true(p2.isActive);
+    do_check_false(p2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_ENABLE, p2.pendingOperations));
+    do_check_false(t2.isActive);
+    do_check_true(t2.userDisabled);
+    do_check_false(hasFlag(AddonManager.PENDING_DISABLE, t2.pendingOperations));
+
+    do_check_true(gLWThemeChanged);
+    gLWThemeChanged = false;
+
+    do_execute_soon(run_test_7);
+  });
+}
+
+// Uninstalling a lightweight theme should not require a restart
+function run_test_7() {
+  prepare_test({
+    "1@personas.mozilla.org": [
+      ["onUninstalling", false],
+      "onUninstalled"
+    ]
+  });
+
+  AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+    p1.uninstall();
+
+    ensure_test_completed();
+    do_check_eq(LightweightThemeManager.usedThemes.length, 1);
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(run_test_8);
+  });
+}
+
+// Uninstalling a lightweight theme in use should not require a restart and it
+// should reactivate the default theme
+// Also, uninstalling a lightweight theme in use should send a
+// "lightweight-theme-styling-update" notification through the observer service
+function run_test_8() {
+  prepare_test({
+    "2@personas.mozilla.org": [
+      ["onUninstalling", false],
+      "onUninstalled"
+    ],
+    "default@tests.mozilla.org": [
+      ["onEnabling", false],
+      "onEnabled"
+    ]
+  });
+
+  AddonManager.getAddonByID("2@personas.mozilla.org", function(p2) {
+    p2.uninstall();
+
+    ensure_test_completed();
+    do_check_eq(LightweightThemeManager.usedThemes.length, 0);
+
+    do_check_true(gLWThemeChanged);
+    gLWThemeChanged = false;
+
+    do_execute_soon(run_test_9);
+  });
+}
+
+// Uninstalling a theme not in use should not require a restart
+function run_test_9() {
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", function(t1) {
+    prepare_test({
+      "theme1@tests.mozilla.org": [
+        ["onUninstalling", false],
+        "onUninstalled"
+      ]
+    });
+
+    t1.uninstall();
+
+    ensure_test_completed();
+
+    AddonManager.getAddonByID("theme1@tests.mozilla.org", function(newt1) {
+      do_check_eq(newt1, null);
+      do_check_false(gLWThemeChanged);
+
+      do_execute_soon(run_test_10);
+    });
+  });
+}
+
+// Uninstalling a custom theme in use should require a restart
+function run_test_10() {
+  AddonManager.getAddonByID("theme2@tests.mozilla.org", callback_soon(function(oldt2) {
+    prepare_test({
+      "theme2@tests.mozilla.org": [
+        "onEnabling",
+      ],
+      "default@tests.mozilla.org": [
+        "onDisabling"
+      ]
+    });
+
+    oldt2.userDisabled = false;
+
+    ensure_test_completed();
+
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                                 "theme2@tests.mozilla.org"], function([d, t2]) {
+      do_check_true(t2.isActive);
+      do_check_false(t2.userDisabled);
+      do_check_false(t2.appDisabled);
+      do_check_false(d.isActive);
+      do_check_true(d.userDisabled);
+      do_check_false(d.appDisabled);
+
+      prepare_test({
+        "theme2@tests.mozilla.org": [
+          "onUninstalling",
+        ],
+        "default@tests.mozilla.org": [
+          "onEnabling"
+        ]
+      });
+
+      t2.uninstall();
+
+      ensure_test_completed();
+      do_check_false(gLWThemeChanged);
+
+      do_execute_soon(run_test_11);
+    });
+  }));
+}
+
+// Installing a custom theme not in use should not require a restart
+function run_test_11() {
+  restartManager();
+
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_theme"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.type, "theme");
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Test Theme 1");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_true(install.addon.skinnable, true);
+    do_check_false(hasFlag(install.addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+    prepare_test({
+      "theme1@tests.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], check_test_11);
+    install.install();
+  });
+}
+
+function check_test_11() {
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", function(t1) {
+    do_check_neq(t1, null);
+    var previewSpec = do_get_addon_root_uri(profileDir, "theme1@tests.mozilla.org") + "preview.png";
+    do_check_eq(t1.screenshots.length, 1);
+    do_check_eq(t1.screenshots[0], previewSpec);
+    do_check_true(t1.skinnable);
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(run_test_12);
+  });
+}
+
+// Updating a custom theme not in use should not require a restart
+function run_test_12() {
+  prepare_test({ }, [
+    "onNewInstall"
+  ]);
+
+  AddonManager.getInstallForFile(do_get_addon("test_theme"), function(install) {
+    ensure_test_completed();
+
+    do_check_neq(install, null);
+    do_check_eq(install.type, "theme");
+    do_check_eq(install.version, "1.0");
+    do_check_eq(install.name, "Test Theme 1");
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    do_check_false(hasFlag(install.addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+    prepare_test({
+      "theme1@tests.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], check_test_12);
+    install.install();
+  });
+}
+
+function check_test_12() {
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", function(t1) {
+    do_check_neq(t1, null);
+    do_check_false(gLWThemeChanged);
+
+    do_execute_soon(run_test_13);
+  });
+}
+
+// Updating a custom theme in use should require a restart
+function run_test_13() {
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", callback_soon(function(t1) {
+    prepare_test({
+      "theme1@tests.mozilla.org": [
+        "onEnabling",
+      ],
+      "default@tests.mozilla.org": [
+        "onDisabling"
+      ]
+    });
+
+    t1.userDisabled = false;
+    ensure_test_completed();
+    restartManager();
+
+    prepare_test({ }, [
+      "onNewInstall"
+    ]);
+
+    AddonManager.getInstallForFile(do_get_addon("test_theme"), function(install) {
+      ensure_test_completed();
+
+      do_check_neq(install, null);
+      do_check_eq(install.type, "theme");
+      do_check_eq(install.version, "1.0");
+      do_check_eq(install.name, "Test Theme 1");
+      do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+      do_check_true(hasFlag(install.addon.operationsRequiringRestart, AddonManager.OP_NEEDS_RESTART_INSTALL));
+
+      prepare_test({
+        "theme1@tests.mozilla.org": [
+          "onInstalling",
+        ]
+      }, [
+        "onInstallStarted",
+        "onInstallEnded",
+      ], callback_soon(check_test_13));
+      install.install();
+    });
+  }));
+}
+
+function check_test_13() {
+  restartManager();
+
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", callback_soon(function(t1) {
+    do_check_neq(t1, null);
+    do_check_true(t1.isActive);
+    do_check_false(gLWThemeChanged);
+    t1.uninstall();
+    restartManager();
+
+    do_execute_soon(run_test_14);
+  }));
+}
+
+// Switching from a lightweight theme to the default theme should not require
+// a restart
+function run_test_14() {
+  LightweightThemeManager.currentTheme = {
+    id: "1",
+    version: "1",
+    name: "Test LW Theme",
+    description: "A test theme",
+    author: "Mozilla",
+    homepageURL: "http://localhost/data/index.html",
+    headerURL: "http://localhost/data/header.png",
+    footerURL: "http://localhost/data/footer.png",
+    previewURL: "http://localhost/data/preview.png",
+    iconURL: "http://localhost/data/icon.png"
+  };
+
+  AddonManager.getAddonByID("default@tests.mozilla.org", function(d) {
+    do_check_true(d.userDisabled);
+    do_check_false(d.isActive);
+
+    prepare_test({
+      "1@personas.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ],
+      "default@tests.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ]
+    });
+
+    d.userDisabled = false;
+    ensure_test_completed();
+
+    do_check_false(d.userDisabled);
+    do_check_true(d.isActive);
+
+    do_check_true(gLWThemeChanged);
+    gLWThemeChanged = false;
+
+    do_execute_soon(run_test_15);
+  });
+}
+
+// Upgrading the application with a custom theme in use should not disable it
+function run_test_15() {
+  restartManager();
+
+  installAllFiles([do_get_addon("test_theme")], function() {
+    AddonManager.getAddonByID("theme1@tests.mozilla.org", callback_soon(function(t1) {
+      t1.userDisabled = false;
+
+      restartManager();
+
+      do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "theme1/1.0");
+      AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                                   "theme1@tests.mozilla.org"],
+                                   callback_soon(function([d_2, t1_2]) {
+        do_check_true(d_2.userDisabled);
+        do_check_false(d_2.appDisabled);
+        do_check_false(d_2.isActive);
+
+        do_check_false(t1_2.userDisabled);
+        do_check_false(t1_2.appDisabled);
+        do_check_true(t1_2.isActive);
+
+        restartManager("2");
+
+        do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "theme1/1.0");
+        AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                                     "theme1@tests.mozilla.org"], function([d_3, t1_3]) {
+          do_check_true(d_3.userDisabled);
+          do_check_false(d_3.appDisabled);
+          do_check_false(d_3.isActive);
+
+          do_check_false(t1_3.userDisabled);
+          do_check_false(t1_3.appDisabled);
+          do_check_true(t1_3.isActive);
+
+          do_execute_soon(run_test_16);
+        });
+      }));
+    }));
+  });
+}
+
+// Upgrading the application with a custom theme in use should disable it if it
+// is no longer compatible
+function run_test_16() {
+  restartManager("3");
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+  AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                               "theme1@tests.mozilla.org"], function([d, t1]) {
+    do_check_false(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_true(d.isActive);
+
+    do_check_true(t1.userDisabled);
+    do_check_true(t1.appDisabled);
+    do_check_false(t1.isActive);
+
+    do_execute_soon(run_test_17);
+  });
+}
+
+// Verifies that if the selected theme pref is changed by a different version
+// of the application that we correctly reset it when it points to an
+// incompatible theme
+function run_test_17() {
+  restartManager("2");
+  shutdownManager();
+
+  Services.prefs.setCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN, "theme1/1.0");
+
+  restartManager("3");
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+  AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                               "theme1@tests.mozilla.org"], function([d, t1]) {
+    do_check_false(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_true(d.isActive);
+
+    do_check_true(t1.userDisabled);
+    do_check_true(t1.appDisabled);
+    do_check_false(t1.isActive);
+
+    do_execute_soon(run_test_18);
+  });
+}
+
+// Disabling the active theme should switch back to the default theme
+function run_test_18() {
+  restartManager(2);
+
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", callback_soon(function(t1) {
+    t1.userDisabled = false;
+
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                                 "theme1@tests.mozilla.org"],
+                                 callback_soon(function([d_2, t1_2]) {
+      do_check_true(d_2.userDisabled);
+      do_check_false(d_2.appDisabled);
+      do_check_false(d_2.isActive);
+
+      do_check_false(t1_2.userDisabled);
+      do_check_false(t1_2.appDisabled);
+      do_check_true(t1_2.isActive);
+
+      prepare_test({
+        "theme1@tests.mozilla.org": [
+          "onDisabling",
+        ],
+        "default@tests.mozilla.org": [
+          "onEnabling",
+        ]
+      });
+      t1_2.userDisabled = true;
+      ensure_test_completed();
+
+      do_check_false(d_2.userDisabled);
+      do_check_false(d_2.appDisabled);
+      do_check_false(d_2.isActive);
+
+      do_check_true(t1_2.userDisabled);
+      do_check_false(t1_2.appDisabled);
+      do_check_true(t1_2.isActive);
+
+      restartManager();
+
+      AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                                   "theme1@tests.mozilla.org"], function([d_3, t1_3]) {
+        do_check_false(d_3.userDisabled);
+        do_check_false(d_3.appDisabled);
+        do_check_true(d_3.isActive);
+
+        do_check_true(t1_3.userDisabled);
+        do_check_false(t1_3.appDisabled);
+        do_check_false(t1_3.isActive);
+
+        do_execute_soon(run_test_19);
+      });
+    }));
+  }));
+}
+
+// Disabling the active persona should switch back to the default theme
+function run_test_19() {
+  AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                               "1@personas.mozilla.org"], function([d, p1]) {
+    p1.userDisabled = false;
+
+    do_check_true(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_false(d.isActive);
+
+    do_check_false(p1.userDisabled);
+    do_check_false(p1.appDisabled);
+    do_check_true(p1.isActive);
+
+    prepare_test({
+      "1@personas.mozilla.org": [
+        ["onDisabling", false],
+        "onDisabled"
+      ],
+      "default@tests.mozilla.org": [
+        ["onEnabling", false],
+        "onEnabled"
+      ]
+    });
+    p1.userDisabled = true;
+    ensure_test_completed();
+
+    do_check_false(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_true(d.isActive);
+
+    do_check_true(p1.userDisabled);
+    do_check_false(p1.appDisabled);
+    do_check_false(p1.isActive);
+
+    do_execute_soon(run_test_20);
+  });
+}
+
+// Tests that you cannot disable the default theme
+function run_test_20() {
+  AddonManager.getAddonByID("default@tests.mozilla.org", function(d) {
+    do_check_false(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_true(d.isActive);
+
+    try {
+      d.userDisabled = true;
+      do_throw("Disabling the default theme should throw an exception");
+    }
+    catch (e) {
+    }
+
+    do_execute_soon(run_test_21);
+  });
+}
+
+// Tests that cached copies of a lightweight theme have the right permissions
+// and pendingOperations during the onEnabling event
+function run_test_21() {
+  AddonManager.getAddonByID("theme1@tests.mozilla.org", callback_soon(function(t1) {
+    // Switch to a custom theme so we can test pendingOperations properly.
+
+    prepare_test({
+      "theme1@tests.mozilla.org": [
+        "onEnabling"
+      ],
+      "default@tests.mozilla.org": [
+        "onDisabling"
+      ]
+    });
+
+    t1.userDisabled = false;
+    ensure_test_completed();
+
+    restartManager();
+
+    AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+      AddonManager.addAddonListener({
+        onEnabling: function(aAddon) {
+          do_check_false(hasFlag(aAddon.permissions, AddonManager.PERM_CAN_ENABLE));
+          do_check_true(hasFlag(aAddon.pendingOperations, AddonManager.PENDING_ENABLE));
+
+          do_check_eq(aAddon.permissions, p1.permissions);
+          do_check_eq(aAddon.pendingOperations, p1.pendingOperations);
+        }
+      });
+
+      prepare_test({
+        "1@personas.mozilla.org": [
+          "onEnabling"
+        ],
+        "theme1@tests.mozilla.org": [
+          "onDisabling"
+        ]
+      });
+
+      p1.userDisabled = false;
+      ensure_test_completed();
+
+      run_test_22();
+    });
+  }));
+}
+
+// Detecting a new add-on during the startup file check should not disable an
+// active lightweight theme
+function run_test_22() {
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                               "1@personas.mozilla.org"], function([d, p1]) {
+    do_check_true(d.userDisabled);
+    do_check_false(d.appDisabled);
+    do_check_false(d.isActive);
+
+    do_check_false(p1.userDisabled);
+    do_check_false(p1.appDisabled);
+    do_check_true(p1.isActive);
+
+    writeInstallRDFForExtension({
+      id: "theme3@tests.mozilla.org",
+      version: "1.0",
+      name: "Test 3",
+      internalName: "theme3/1.0",
+      targetApplications: [{
+        id: "xpcshell@tests.mozilla.org",
+        minVersion: "1",
+        maxVersion: "2"
+      }]
+    }, profileDir);
+
+    restartManager();
+
+    AddonManager.getAddonsByIDs(["default@tests.mozilla.org",
+                                 "1@personas.mozilla.org"], function([d_2, p1_2]) {
+      do_check_true(d_2.userDisabled);
+      do_check_false(d_2.appDisabled);
+      do_check_false(d_2.isActive);
+
+      do_check_false(p1_2.userDisabled);
+      do_check_false(p1_2.appDisabled);
+      do_check_true(p1_2.isActive);
+
+      end_test();
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_types.js b/toolkit/mozapps/webextensions/test/xpcshell/test_types.js
new file mode 100644
index 000000000..679f4808c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_types.js
@@ -0,0 +1,65 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that custom types can be defined and undefined
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+function run_test() {
+  startupManager();
+
+  do_check_false("test" in AddonManager.addonTypes);
+  let types = AddonManager.addonTypes;
+
+  // The dumbest provider possible
+  var provider = {
+  };
+
+  var expectedAdd = "test";
+  var expectedRemove = null;
+
+  AddonManager.addTypeListener({
+    onTypeAdded: function(aType) {
+      do_check_eq(aType.id, expectedAdd);
+      expectedAdd = null;
+    },
+
+    onTypeRemoved: function(aType) {
+      do_check_eq(aType.id, expectedRemove);
+      expectedRemove = null;
+    }
+  });
+
+  AddonManagerPrivate.registerProvider(provider, [{
+    id: "test",
+    name: "Test",
+    uiPriority: 1
+  }, {
+    id: "t$e%st",
+    name: "Test",
+    uiPriority: 1
+  }]);
+
+  do_check_eq(expectedAdd, null);
+
+  do_check_true("test" in types);
+  do_check_eq(types["test"].name, "Test");
+  do_check_false("t$e%st" in types);
+
+  delete types["test"];
+  do_check_true("test" in types);
+
+  types["foo"] = "bar";
+  do_check_false("foo" in types);
+
+  expectedRemove = "test";
+
+  AddonManagerPrivate.unregisterProvider(provider);
+
+  do_check_eq(expectedRemove, null);
+
+  do_check_false("test" in AddonManager.addonTypes);
+  // The cached reference to addonTypes is live
+  do_check_false("test" in types);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_undothemeuninstall.js b/toolkit/mozapps/webextensions/test/xpcshell/test_undothemeuninstall.js
new file mode 100644
index 000000000..36ca95aec
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_undothemeuninstall.js
@@ -0,0 +1,423 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that forcing undo for uninstall works for themes
+Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm");
+
+const PREF_GENERAL_SKINS_SELECTEDSKIN = "general.skins.selectedSkin";
+
+var defaultTheme = {
+  id: "default@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  internalName: "classic/1.0",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+var theme1 = {
+  id: "theme1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  internalName: "theme1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function dummyLWTheme(id) {
+  return {
+    id: id || Math.random().toString(),
+    name: Math.random().toString(),
+    headerURL: "http://lwttest.invalid/a.png",
+    footerURL: "http://lwttest.invalid/b.png",
+    textcolor: Math.random().toString(),
+    accentcolor: Math.random().toString()
+  };
+}
+
+// Sets up the profile by installing an add-on.
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+  do_register_cleanup(promiseShutdownManager);
+
+  run_next_test();
+}
+
+add_task(function* checkDefault() {
+  writeInstallRDFForExtension(defaultTheme, profileDir);
+  yield promiseRestartManager();
+
+  let d = yield promiseAddonByID("default@tests.mozilla.org");
+
+  do_check_neq(d, null);
+  do_check_true(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+});
+
+// Tests that uninstalling an enabled theme offers the option to undo
+add_task(function* uninstallEnabledOffersUndo() {
+  writeInstallRDFForExtension(theme1, profileDir);
+
+  yield promiseRestartManager();
+
+  let t1 = yield promiseAddonByID("theme1@tests.mozilla.org");
+
+  do_check_neq(t1, null);
+  do_check_true(t1.userDisabled);
+
+  t1.userDisabled = false;
+
+  yield promiseRestartManager();
+
+  let d = null;
+  [ t1, d ] = yield promiseAddonsByIDs(["theme1@tests.mozilla.org",
+                                        "default@tests.mozilla.org"]);
+  do_check_neq(d, null);
+  do_check_false(d.isActive);
+  do_check_true(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_true(t1.isActive);
+  do_check_false(t1.userDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "theme1");
+
+  prepare_test({
+    "default@tests.mozilla.org": [
+      "onEnabling"
+    ],
+    "theme1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  t1.uninstall(true);
+  ensure_test_completed();
+
+  do_check_neq(d, null);
+  do_check_false(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_ENABLE);
+
+  do_check_true(t1.isActive);
+  do_check_false(t1.userDisabled);
+  do_check_true(hasFlag(t1.pendingOperations, AddonManager.PENDING_UNINSTALL));
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "theme1");
+
+  yield promiseRestartManager();
+
+  [ t1, d ] = yield promiseAddonsByIDs(["theme1@tests.mozilla.org",
+                                        "default@tests.mozilla.org"]);
+  do_check_neq(d, null);
+  do_check_true(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_eq(t1, null);
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+});
+
+// Tests that uninstalling an enabled theme can be undone
+add_task(function* canUndoUninstallEnabled() {
+  writeInstallRDFForExtension(theme1, profileDir);
+
+  yield promiseRestartManager();
+
+  let t1 = yield promiseAddonByID("theme1@tests.mozilla.org");
+
+  do_check_neq(t1, null);
+  do_check_true(t1.userDisabled);
+
+  t1.userDisabled = false;
+
+  yield promiseRestartManager();
+
+  let d = null;
+  [ t1, d ] = yield promiseAddonsByIDs(["theme1@tests.mozilla.org",
+                                        "default@tests.mozilla.org"]);
+
+  do_check_neq(d, null);
+  do_check_false(d.isActive);
+  do_check_true(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_true(t1.isActive);
+  do_check_false(t1.userDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "theme1");
+
+  prepare_test({
+    "default@tests.mozilla.org": [
+      "onEnabling"
+    ],
+    "theme1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  t1.uninstall(true);
+  ensure_test_completed();
+
+  do_check_neq(d, null);
+  do_check_false(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_ENABLE);
+
+  do_check_true(t1.isActive);
+  do_check_false(t1.userDisabled);
+  do_check_true(hasFlag(t1.pendingOperations, AddonManager.PENDING_UNINSTALL));
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "theme1");
+
+  prepare_test({
+    "default@tests.mozilla.org": [
+      "onOperationCancelled"
+    ],
+    "theme1@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  });
+  t1.cancelUninstall();
+  ensure_test_completed();
+
+  do_check_neq(d, null);
+  do_check_false(d.isActive);
+  do_check_true(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_true(t1.isActive);
+  do_check_false(t1.userDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+  yield promiseRestartManager();
+
+  [ t1, d ] = yield promiseAddonsByIDs(["theme1@tests.mozilla.org",
+                                        "default@tests.mozilla.org"]);
+
+  do_check_neq(d, null);
+  do_check_false(d.isActive);
+  do_check_true(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_true(t1.isActive);
+  do_check_false(t1.userDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "theme1");
+
+  t1.uninstall();
+  yield promiseRestartManager();
+});
+
+// Tests that uninstalling a disabled theme offers the option to undo
+add_task(function* uninstallDisabledOffersUndo() {
+  writeInstallRDFForExtension(theme1, profileDir);
+
+  yield promiseRestartManager();
+
+  let [ t1, d ] = yield promiseAddonsByIDs(["theme1@tests.mozilla.org",
+                                            "default@tests.mozilla.org"]);
+
+  do_check_neq(d, null);
+  do_check_true(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  prepare_test({
+    "theme1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  t1.uninstall(true);
+  ensure_test_completed();
+
+  do_check_neq(d, null);
+  do_check_true(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_true(hasFlag(t1.pendingOperations, AddonManager.PENDING_UNINSTALL));
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  yield promiseRestartManager();
+
+  [ t1, d ] = yield promiseAddonsByIDs(["theme1@tests.mozilla.org",
+                                        "default@tests.mozilla.org"]);
+
+  do_check_neq(d, null);
+  do_check_true(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_eq(t1, null);
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+});
+
+// Tests that uninstalling a disabled theme can be undone
+add_task(function* canUndoUninstallDisabled() {
+  writeInstallRDFForExtension(theme1, profileDir);
+
+  yield promiseRestartManager();
+
+  let [ t1, d ] = yield promiseAddonsByIDs(["theme1@tests.mozilla.org",
+                                            "default@tests.mozilla.org"]);
+
+  do_check_neq(d, null);
+  do_check_true(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  prepare_test({
+    "theme1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  t1.uninstall(true);
+  ensure_test_completed();
+
+  do_check_neq(d, null);
+  do_check_true(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_true(hasFlag(t1.pendingOperations, AddonManager.PENDING_UNINSTALL));
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  prepare_test({
+    "theme1@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  });
+  t1.cancelUninstall();
+  ensure_test_completed();
+
+  do_check_neq(d, null);
+  do_check_true(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+  yield promiseRestartManager();
+
+  [ t1, d ] = yield promiseAddonsByIDs(["theme1@tests.mozilla.org",
+                                        "default@tests.mozilla.org"]);
+
+  do_check_neq(d, null);
+  do_check_true(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_false(t1.isActive);
+  do_check_true(t1.userDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  t1.uninstall();
+  yield promiseRestartManager();
+});
+
+// Tests that uninstalling an enabled lightweight theme offers the option to undo
+add_task(function* uninstallLWTOffersUndo() {
+  // skipped since lightweight themes don't support undoable uninstall yet
+  return;
+  /*
+  LightweightThemeManager.currentTheme = dummyLWTheme("theme1");
+
+  let [ t1, d ] = yield promiseAddonsByIDs(["theme1@personas.mozilla.org",
+                                            "default@tests.mozilla.org"]);
+
+  do_check_neq(d, null);
+  do_check_false(d.isActive);
+  do_check_true(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_neq(t1, null);
+  do_check_true(t1.isActive);
+  do_check_false(t1.userDisabled);
+  do_check_eq(t1.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  prepare_test({
+    "default@tests.mozilla.org": [
+      "onEnabling"
+    ],
+    "theme1@personas.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  t1.uninstall(true);
+  ensure_test_completed();
+
+  do_check_neq(d, null);
+  do_check_false(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_ENABLE);
+
+  do_check_true(t1.isActive);
+  do_check_false(t1.userDisabled);
+  do_check_true(hasFlag(t1.pendingOperations, AddonManager.PENDING_UNINSTALL));
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+
+  yield promiseRestartManager();
+
+  [ t1, d ] = yield promiseAddonsByIDs(["theme1@personas.mozilla.org",
+                                        "default@tests.mozilla.org"]);
+
+  do_check_neq(d, null);
+  do_check_true(d.isActive);
+  do_check_false(d.userDisabled);
+  do_check_eq(d.pendingOperations, AddonManager.PENDING_NONE);
+
+  do_check_eq(t1, null);
+
+  do_check_eq(Services.prefs.getCharPref(PREF_GENERAL_SKINS_SELECTEDSKIN), "classic/1.0");
+  */
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_undouninstall.js b/toolkit/mozapps/webextensions/test/xpcshell/test_undouninstall.js
new file mode 100644
index 000000000..4680a3c4a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_undouninstall.js
@@ -0,0 +1,792 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that forcing undo for uninstall works
+
+const APP_STARTUP                     = 1;
+const APP_SHUTDOWN                    = 2;
+const ADDON_ENABLE                    = 3;
+const ADDON_DISABLE                   = 4;
+const ADDON_INSTALL                   = 5;
+const ADDON_UNINSTALL                 = 6;
+const ADDON_UPGRADE                   = 7;
+const ADDON_DOWNGRADE                 = 8;
+
+const ID = "undouninstall1@tests.mozilla.org";
+const INCOMPAT_ID = "incompatible@tests.mozilla.org";
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+BootstrapMonitor.init();
+
+function getStartupReason(id) {
+  let info = BootstrapMonitor.started.get(id);
+  return info ? info.reason : undefined;
+}
+
+function getShutdownReason(id) {
+  let info = BootstrapMonitor.stopped.get(id);
+  return info ? info.reason : undefined;
+}
+
+function getInstallReason(id) {
+  let info = BootstrapMonitor.installed.get(id);
+  return info ? info.reason : undefined;
+}
+
+function getUninstallReason(id) {
+  let info = BootstrapMonitor.uninstalled.get(id);
+  return info ? info.reason : undefined;
+}
+
+function getStartupOldVersion(id) {
+  let info = BootstrapMonitor.started.get(id);
+  return info ? info.data.oldVersion : undefined;
+}
+
+function getShutdownNewVersion(id) {
+  let info = BootstrapMonitor.stopped.get(id);
+  return info ? info.data.newVersion : undefined;
+}
+
+function getInstallOldVersion(id) {
+  let info = BootstrapMonitor.installed.get(id);
+  return info ? info.data.oldVersion : undefined;
+}
+
+function getUninstallNewVersion(id) {
+  let info = BootstrapMonitor.uninstalled.get(id);
+  return info ? info.data.newVersion : undefined;
+}
+
+// Sets up the profile by installing an add-on.
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  startupManager();
+  do_register_cleanup(promiseShutdownManager);
+
+  run_next_test();
+}
+
+add_task(function* installAddon() {
+  let olda1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  do_check_eq(olda1, null);
+
+  writeInstallRDFForExtension(addon1, profileDir);
+  yield promiseRestartManager();
+
+  let a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+  do_check_eq(a1.pendingOperations, 0);
+  do_check_in_crash_annotation(addon1.id, addon1.version);
+});
+
+// Uninstalling an add-on should work.
+add_task(function* uninstallAddon() {
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+
+  let a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  do_check_eq(a1.pendingOperations, 0);
+  do_check_neq(a1.operationsRequiringRestart &
+               AddonManager.OP_NEEDS_RESTART_UNINSTALL, 0);
+  a1.uninstall(true);
+  do_check_true(hasFlag(a1.pendingOperations, AddonManager.PENDING_UNINSTALL));
+  do_check_in_crash_annotation(addon1.id, addon1.version);
+
+  ensure_test_completed();
+
+  let list = yield promiseAddonsWithOperationsByTypes(null);
+
+  do_check_eq(list.length, 1);
+  do_check_eq(list[0].id, "addon1@tests.mozilla.org");
+
+  yield promiseRestartManager();
+
+  a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  do_check_eq(a1, null);
+  do_check_false(isExtensionInAddonsList(profileDir, "addon1@tests.mozilla.org"));
+  do_check_not_in_crash_annotation(addon1.id, addon1.version);
+
+  var dest = profileDir.clone();
+  dest.append(do_get_expected_addon_name("addon1@tests.mozilla.org"));
+  do_check_false(dest.exists());
+  writeInstallRDFForExtension(addon1, profileDir);
+  yield promiseRestartManager();
+});
+
+// Cancelling the uninstall should send onOperationCancelled
+add_task(function* cancelUninstall() {
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+
+  let a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+  do_check_eq(a1.pendingOperations, 0);
+  a1.uninstall(true);
+  do_check_true(hasFlag(a1.pendingOperations, AddonManager.PENDING_UNINSTALL));
+
+  ensure_test_completed();
+
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  });
+  a1.cancelUninstall();
+  do_check_eq(a1.pendingOperations, 0);
+
+  ensure_test_completed();
+  yield promiseRestartManager();
+
+  a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+  do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+});
+
+// Uninstalling an item pending disable should still require a restart
+add_task(function* pendingDisableRequestRestart() {
+  let a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onDisabling"
+    ]
+  });
+  a1.userDisabled = true;
+  ensure_test_completed();
+
+  do_check_true(hasFlag(AddonManager.PENDING_DISABLE, a1.pendingOperations));
+  do_check_true(a1.isActive);
+
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  a1.uninstall(true);
+
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  });
+  a1.cancelUninstall();
+  ensure_test_completed();
+  do_check_true(hasFlag(AddonManager.PENDING_DISABLE, a1.pendingOperations));
+
+  yield promiseRestartManager();
+});
+
+// Test that uninstalling an inactive item should still allow cancelling
+add_task(function* uninstallInactiveIsCancellable() {
+  let a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+  do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  a1.uninstall(true);
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  });
+  a1.cancelUninstall();
+  ensure_test_completed();
+
+  yield promiseRestartManager();
+});
+
+// Test that an inactive item can be uninstalled
+add_task(function* uninstallInactive() {
+  let a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+  do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      [ "onUninstalling", false ],
+      "onUninstalled"
+    ]
+  });
+  a1.uninstall();
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+  do_check_eq(a1, null);
+});
+
+// Tests that an enabled restartless add-on can be uninstalled and goes away
+// when the uninstall is committed
+add_task(function* uninstallRestartless() {
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      ["onInstalling", false],
+      "onInstalled"
+    ]
+  }, [
+    "onNewInstall",
+    "onInstallStarted",
+    "onInstallEnded"
+  ]);
+  yield promiseInstallAllFiles([do_get_addon("test_undouninstall1")]);
+  ensure_test_completed();
+
+  let a1 = yield promiseAddonByID(ID);
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getInstallReason(ID), ADDON_INSTALL);
+  do_check_eq(getStartupReason(ID), ADDON_INSTALL);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  a1.uninstall(true);
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID(ID);
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_eq(getShutdownReason(ID), ADDON_UNINSTALL);
+  do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+  do_check_false(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  // complete the uinstall
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onUninstalled"
+    ]
+  });
+  a1.uninstall();
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID(ID);
+
+  do_check_eq(a1, null);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+});
+
+// Tests that an enabled restartless add-on can be uninstalled and then cancelled
+add_task(function* cancelUninstallOfRestartless() {
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      ["onInstalling", false],
+      "onInstalled"
+    ]
+  }, [
+    "onNewInstall",
+    "onInstallStarted",
+    "onInstallEnded"
+  ]);
+  yield promiseInstallAllFiles([do_get_addon("test_undouninstall1")]);
+  ensure_test_completed();
+
+  let a1 = yield promiseAddonByID(ID);
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getInstallReason(ID), ADDON_INSTALL);
+  do_check_eq(getStartupReason(ID), ADDON_INSTALL);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  a1.uninstall(true);
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_eq(getShutdownReason(ID), ADDON_UNINSTALL);
+  do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+  do_check_false(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  });
+  a1.cancelUninstall();
+  ensure_test_completed();
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getStartupReason(ID), ADDON_INSTALL);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  shutdownManager();
+
+  do_check_eq(getShutdownReason(ID), APP_SHUTDOWN);
+  do_check_eq(getShutdownNewVersion(ID), undefined);
+
+  startupManager(false);
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getStartupReason(ID), APP_STARTUP);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  a1.uninstall();
+});
+
+// Tests that reinstalling an enabled restartless add-on waiting to be
+// uninstalled aborts the uninstall and leaves the add-on enabled
+add_task(function* reinstallAddonAwaitingUninstall() {
+  yield promiseInstallAllFiles([do_get_addon("test_undouninstall1")]);
+
+  let a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getInstallReason(ID), ADDON_INSTALL);
+  do_check_eq(getStartupReason(ID), ADDON_INSTALL);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  a1.uninstall(true);
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonInstalled(ID);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_eq(getShutdownReason(ID), ADDON_UNINSTALL);
+  do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+  do_check_false(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      ["onInstalling", false],
+      "onInstalled"
+    ]
+  }, [
+    "onNewInstall",
+    "onInstallStarted",
+    "onInstallEnded"
+  ]);
+
+  yield promiseInstallAllFiles([do_get_addon("test_undouninstall1")]);
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  ensure_test_completed();
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getUninstallReason(ID), ADDON_DOWNGRADE);
+  do_check_eq(getInstallReason(ID), ADDON_DOWNGRADE);
+  do_check_eq(getStartupReason(ID), ADDON_DOWNGRADE);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  shutdownManager();
+
+  do_check_eq(getShutdownReason(ID), APP_SHUTDOWN);
+
+  startupManager(false);
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getStartupReason(ID), APP_STARTUP);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  a1.uninstall();
+});
+
+// Tests that a disabled restartless add-on can be uninstalled and goes away
+// when the uninstall is committed
+add_task(function* uninstallDisabledRestartless() {
+  yield promiseInstallAllFiles([do_get_addon("test_undouninstall1")]);
+
+  let a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getInstallReason(ID), ADDON_INSTALL);
+  do_check_eq(getStartupReason(ID), ADDON_INSTALL);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  a1.userDisabled = true;
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_eq(getShutdownReason(ID), ADDON_DISABLE);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  a1.uninstall(true);
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+
+  // commit the uninstall
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onUninstalled"
+    ]
+  });
+  a1.uninstall();
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_eq(a1, null);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  BootstrapMonitor.checkAddonNotInstalled(ID);
+  do_check_eq(getUninstallReason(ID), ADDON_UNINSTALL);
+});
+
+// Tests that a disabled restartless add-on can be uninstalled and then cancelled
+add_task(function* cancelUninstallDisabledRestartless() {
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      ["onInstalling", false],
+      "onInstalled"
+    ]
+  }, [
+    "onNewInstall",
+    "onInstallStarted",
+    "onInstallEnded"
+  ]);
+  yield promiseInstallAllFiles([do_get_addon("test_undouninstall1")]);
+  ensure_test_completed();
+
+  let a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getInstallReason(ID), ADDON_INSTALL);
+  do_check_eq(getStartupReason(ID), ADDON_INSTALL);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      ["onDisabling", false],
+      "onDisabled"
+    ]
+  });
+  a1.userDisabled = true;
+  ensure_test_completed();
+
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_eq(getShutdownReason(ID), ADDON_DISABLE);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  a1.uninstall(true);
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  BootstrapMonitor.checkAddonInstalled(ID);
+  do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  });
+  a1.cancelUninstall();
+  ensure_test_completed();
+
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  BootstrapMonitor.checkAddonInstalled(ID);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+
+  yield promiseRestartManager();
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  BootstrapMonitor.checkAddonInstalled(ID);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+
+  a1.uninstall();
+});
+
+// Tests that reinstalling a disabled restartless add-on waiting to be
+// uninstalled aborts the uninstall and leaves the add-on disabled
+add_task(function* reinstallDisabledAddonAwaitingUninstall() {
+  yield promiseInstallAllFiles([do_get_addon("test_undouninstall1")]);
+
+  let a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getInstallReason(ID), ADDON_INSTALL);
+  do_check_eq(getStartupReason(ID), ADDON_INSTALL);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  a1.userDisabled = true;
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_eq(getShutdownReason(ID), ADDON_DISABLE);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  a1.uninstall(true);
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonNotStarted(ID);
+  do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      ["onInstalling", false],
+      "onInstalled"
+    ]
+  }, [
+    "onNewInstall",
+    "onInstallStarted",
+    "onInstallEnded"
+  ]);
+
+  yield promiseInstallAllFiles([do_get_addon("test_undouninstall1")]);
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  ensure_test_completed();
+
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonNotStarted(ID, "1.0");
+  do_check_eq(getUninstallReason(ID), ADDON_DOWNGRADE);
+  do_check_eq(getInstallReason(ID), ADDON_DOWNGRADE);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+
+  yield promiseRestartManager();
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonNotStarted(ID, "1.0");
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_false(a1.isActive);
+  do_check_true(a1.userDisabled);
+
+  a1.uninstall();
+});
+
+
+// Test that uninstalling a temporary addon can be canceled
+add_task(function* cancelUninstallTemporary() {
+  yield AddonManager.installTemporaryAddon(do_get_addon("test_undouninstall1"));
+
+  let a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(getInstallReason(ID), ADDON_INSTALL);
+  do_check_eq(getStartupReason(ID), ADDON_ENABLE);
+  do_check_eq(a1.pendingOperations, AddonManager.PENDING_NONE);
+  do_check_true(a1.isActive);
+  do_check_false(a1.userDisabled);
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  a1.uninstall(true);
+  ensure_test_completed();
+
+  BootstrapMonitor.checkAddonNotStarted(ID, "1.0");
+  do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+
+  prepare_test({
+    "undouninstall1@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  });
+  a1.cancelUninstall();
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID("undouninstall1@tests.mozilla.org");
+
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+  do_check_eq(a1.pendingOperations, 0);
+
+  yield promiseRestartManager();
+});
+
+// Tests that cancelling the uninstall of an incompatible restartless addon
+// does not start the addon
+add_task(function* cancelUninstallIncompatibleRestartless() {
+  yield promiseInstallAllFiles([do_get_addon("test_undoincompatible")]);
+
+  let a1 = yield promiseAddonByID(INCOMPAT_ID);
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonNotStarted(INCOMPAT_ID);
+  do_check_false(a1.isActive);
+
+  prepare_test({
+    "incompatible@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  a1.uninstall(true);
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID(INCOMPAT_ID);
+  do_check_neq(a1, null);
+  do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+  do_check_false(a1.isActive);
+
+  prepare_test({
+    "incompatible@tests.mozilla.org": [
+      "onOperationCancelled"
+    ]
+  });
+  a1.cancelUninstall();
+  ensure_test_completed();
+
+  a1 = yield promiseAddonByID(INCOMPAT_ID);
+  do_check_neq(a1, null);
+  BootstrapMonitor.checkAddonNotStarted(INCOMPAT_ID);
+  do_check_eq(a1.pendingOperations, 0);
+  do_check_false(a1.isActive);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_uninstall.js b/toolkit/mozapps/webextensions/test/xpcshell/test_uninstall.js
new file mode 100644
index 000000000..6b12489f2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_uninstall.js
@@ -0,0 +1,216 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-ons can be uninstalled.
+
+var addon1 = {
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  name: "Test 1",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }]
+};
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+// Sets up the profile by installing an add-on.
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  do_test_pending();
+  startupManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(olda1) {
+    do_check_eq(olda1, null);
+
+    writeInstallRDFForExtension(addon1, profileDir);
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+      do_check_neq(a1, null);
+      do_check_true(a1.isActive);
+      do_check_false(a1.userDisabled);
+      do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+      do_check_eq(a1.pendingOperations, 0);
+      do_check_in_crash_annotation(addon1.id, addon1.version);
+
+      do_execute_soon(run_test_1);
+    });
+  }));
+}
+
+function end_test() {
+  do_execute_soon(do_test_finished);
+}
+
+// Uninstalling an add-on should work.
+function run_test_1() {
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_eq(a1.pendingOperations, 0);
+    do_check_neq(a1.operationsRequiringRestart &
+                 AddonManager.OP_NEEDS_RESTART_UNINSTALL, 0);
+    a1.uninstall();
+    do_check_true(hasFlag(a1.pendingOperations, AddonManager.PENDING_UNINSTALL));
+    do_check_in_crash_annotation(addon1.id, addon1.version);
+
+    ensure_test_completed();
+
+    AddonManager.getAddonsWithOperationsByTypes(null, function(list) {
+      do_check_eq(list.length, 1);
+      do_check_eq(list[0].id, "addon1@tests.mozilla.org");
+
+      do_execute_soon(check_test_1);
+    });
+  });
+}
+
+function check_test_1() {
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_eq(a1, null);
+    do_check_false(isExtensionInAddonsList(profileDir, "addon1@tests.mozilla.org"));
+    do_check_not_in_crash_annotation(addon1.id, addon1.version);
+
+    var dest = profileDir.clone();
+    dest.append(do_get_expected_addon_name("addon1@tests.mozilla.org"));
+    do_check_false(dest.exists());
+    writeInstallRDFForExtension(addon1, profileDir);
+    do_execute_soon(run_test_2);
+  });
+}
+
+// Cancelling the uninstall should send onOperationCancelled
+function run_test_2() {
+  restartManager();
+
+  prepare_test({
+    "addon1@tests.mozilla.org": [
+      "onUninstalling"
+    ]
+  });
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_true(a1.isActive);
+    do_check_false(a1.userDisabled);
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+    do_check_eq(a1.pendingOperations, 0);
+    a1.uninstall();
+    do_check_true(hasFlag(a1.pendingOperations, AddonManager.PENDING_UNINSTALL));
+
+    ensure_test_completed();
+
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        "onOperationCancelled"
+      ]
+    });
+    a1.cancelUninstall();
+    do_check_eq(a1.pendingOperations, 0);
+
+    ensure_test_completed();
+
+    do_execute_soon(check_test_2);
+  });
+}
+
+function check_test_2() {
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_true(a1.isActive);
+    do_check_false(a1.userDisabled);
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+    run_test_3();
+  });
+}
+
+// Uninstalling an item pending disable should still require a restart
+function run_test_3() {
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        "onDisabling"
+      ]
+    });
+    a1.userDisabled = true;
+    ensure_test_completed();
+
+    do_check_true(hasFlag(AddonManager.PENDING_DISABLE, a1.pendingOperations));
+    do_check_true(a1.isActive);
+
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        "onUninstalling"
+      ]
+    });
+    a1.uninstall();
+
+    check_test_3();
+  });
+}
+
+function check_test_3() {
+  ensure_test_completed();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_true(hasFlag(AddonManager.PENDING_UNINSTALL, a1.pendingOperations));
+
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        "onOperationCancelled"
+      ]
+    });
+    a1.cancelUninstall();
+    ensure_test_completed();
+    do_check_true(hasFlag(AddonManager.PENDING_DISABLE, a1.pendingOperations));
+
+    do_execute_soon(run_test_4);
+  });
+}
+
+// Test that uninstalling an inactive item should happen without a restart
+function run_test_4() {
+  restartManager();
+
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_neq(a1, null);
+    do_check_false(a1.isActive);
+    do_check_true(a1.userDisabled);
+    do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        ["onUninstalling", false],
+        "onUninstalled"
+      ]
+    });
+    a1.uninstall();
+    ensure_test_completed();
+
+    check_test_4();
+  });
+}
+
+function check_test_4() {
+  AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+    do_check_eq(a1, null);
+
+    end_test();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_update.js b/toolkit/mozapps/webextensions/test/xpcshell/test_update.js
new file mode 100644
index 000000000..4db488ab5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_update.js
@@ -0,0 +1,1398 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-on update checks work
+
+const PREF_MATCH_OS_LOCALE = "intl.locale.matchOS";
+const PREF_SELECTED_LOCALE = "general.useragent.locale";
+const PREF_GETADDONS_CACHE_ENABLED = "extensions.getAddons.cache.enabled";
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+// This test requires lightweight themes update to be enabled even if the app
+// doesn't support lightweight themes.
+Services.prefs.setBoolPref("lightweightThemes.update.enabled", true);
+
+Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm");
+
+const PARAMS = "?%REQ_VERSION%/%ITEM_ID%/%ITEM_VERSION%/%ITEM_MAXAPPVERSION%/" +
+               "%ITEM_STATUS%/%APP_ID%/%APP_VERSION%/%CURRENT_APP_VERSION%/" +
+               "%APP_OS%/%APP_ABI%/%APP_LOCALE%/%UPDATE_TYPE%";
+
+var gInstallDate;
+
+var testserver = createHttpServer();
+gPort = testserver.identity.primaryPort;
+mapFile("/data/test_update.rdf", testserver);
+mapFile("/data/test_update.json", testserver);
+mapFile("/data/test_update.xml", testserver);
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+var originalSyncGUID;
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  Services.prefs.setBoolPref(PREF_MATCH_OS_LOCALE, false);
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "fr-FR");
+
+  run_next_test();
+}
+
+let testParams = [
+  { updateFile: "test_update.rdf",
+    appId: "xpcshell@tests.mozilla.org" },
+  { updateFile: "test_update.json",
+    appId: "toolkit@mozilla.org" },
+];
+
+for (let test of testParams) {
+  let { updateFile, appId } = test;
+
+  add_test(function() {
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon2@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0",
+        maxVersion: "0"
+      }],
+      name: "Test Addon 2",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon3@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "5",
+        maxVersion: "5"
+      }],
+      name: "Test Addon 3",
+    }, profileDir);
+
+    startupManager();
+
+    run_next_test();
+  });
+
+  // Verify that an update is available and can be installed.
+  let check_test_1;
+  add_test(function run_test_1() {
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.version, "1.0");
+      do_check_eq(a1.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DEFAULT);
+      do_check_eq(a1.releaseNotesURI, null);
+      do_check_true(a1.foreignInstall);
+      do_check_neq(a1.syncGUID, null);
+
+      originalSyncGUID = a1.syncGUID;
+      a1.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DEFAULT;
+
+      prepare_test({
+        "addon1@tests.mozilla.org": [
+          ["onPropertyChanged", ["applyBackgroundUpdates"]]
+        ]
+      });
+      a1.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+      check_test_completed();
+
+      a1.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+
+      prepare_test({}, [
+        "onNewInstall",
+      ]);
+
+      a1.findUpdates({
+        onNoCompatibilityUpdateAvailable: function(addon) {
+          ok(false, "Should not have seen onNoCompatibilityUpdateAvailable notification");
+        },
+
+        onUpdateAvailable: function(addon, install) {
+          ensure_test_completed();
+
+          AddonManager.getAllInstalls(function(aInstalls) {
+            do_check_eq(aInstalls.length, 1);
+            do_check_eq(aInstalls[0], install);
+
+            do_check_eq(addon, a1);
+            do_check_eq(install.name, addon.name);
+            do_check_eq(install.version, "2.0");
+            do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+            do_check_eq(install.existingAddon, addon);
+            do_check_eq(install.releaseNotesURI.spec, "http://example.com/updateInfo.xhtml");
+
+            // Verify that another update check returns the same AddonInstall
+            a1.findUpdates({
+              onNoCompatibilityUpdateAvailable: function() {
+                ok(false, "Should not have seen onNoCompatibilityUpdateAvailable notification");
+              },
+
+              onUpdateAvailable: function(newAddon, newInstall) {
+                AddonManager.getAllInstalls(function(aInstalls2) {
+                  do_check_eq(aInstalls2.length, 1);
+                  do_check_eq(aInstalls2[0], install);
+                  do_check_eq(newAddon, addon);
+                  do_check_eq(newInstall, install);
+
+                  prepare_test({}, [
+                    "onDownloadStarted",
+                    "onDownloadEnded",
+                  ], check_test_1);
+                  install.install();
+                });
+              },
+
+              onNoUpdateAvailable: function() {
+                ok(false, "Should not have seen onNoUpdateAvailable notification");
+              }
+            }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+          });
+        },
+
+        onNoUpdateAvailable: function(addon) {
+          ok(false, "Should not have seen onNoUpdateAvailable notification");
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+
+  let run_test_2;
+  check_test_1 = (install) => {
+    ensure_test_completed();
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    run_test_2(install);
+    return false;
+  };
+
+  // Continue installing the update.
+  let check_test_2;
+  run_test_2 = (install) => {
+    // Verify that another update check returns no new update
+    install.existingAddon.findUpdates({
+      onNoCompatibilityUpdateAvailable: function(addon) {
+        ok(false, "Should not have seen onNoCompatibilityUpdateAvailable notification");
+      },
+
+      onUpdateAvailable: function() {
+        ok(false, "Should find no available update when one is already downloading");
+      },
+
+      onNoUpdateAvailable: function(addon) {
+        AddonManager.getAllInstalls(function(aInstalls) {
+          do_check_eq(aInstalls.length, 1);
+          do_check_eq(aInstalls[0], install);
+
+          prepare_test({
+            "addon1@tests.mozilla.org": [
+              "onInstalling"
+            ]
+          }, [
+            "onInstallStarted",
+            "onInstallEnded",
+          ], check_test_2);
+          install.install();
+        });
+      }
+    }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  };
+
+  check_test_2 = () => {
+    ensure_test_completed();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(olda1) {
+      do_check_neq(olda1, null);
+      do_check_eq(olda1.version, "1.0");
+      do_check_true(isExtensionInAddonsList(profileDir, olda1.id));
+
+      shutdownManager();
+
+      startupManager();
+
+      do_check_true(isExtensionInAddonsList(profileDir, "addon1@tests.mozilla.org"));
+
+      AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+        do_check_neq(a1, null);
+        do_check_eq(a1.version, "2.0");
+        do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+        do_check_eq(a1.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DISABLE);
+        do_check_eq(a1.releaseNotesURI.spec, "http://example.com/updateInfo.xhtml");
+        do_check_true(a1.foreignInstall);
+        do_check_neq(a1.syncGUID, null);
+        do_check_eq(originalSyncGUID, a1.syncGUID);
+
+        // Make sure that the extension lastModifiedTime was updated.
+        let testURI = a1.getResourceURI(TEST_UNPACKED ? "install.rdf" : "");
+        let testFile = testURI.QueryInterface(Components.interfaces.nsIFileURL).file;
+        let difference = testFile.lastModifiedTime - Date.now();
+        do_check_true(Math.abs(difference) < MAX_TIME_DIFFERENCE);
+
+        a1.uninstall();
+        run_next_test();
+      });
+    }));
+  };
+
+  // Check that an update check finds compatibility updates and applies them
+  let check_test_3;
+  add_test(function run_test_3() {
+    restartManager();
+
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+      do_check_neq(a2, null);
+      do_check_true(a2.isActive);
+      do_check_true(a2.isCompatible);
+      do_check_false(a2.appDisabled);
+      do_check_true(a2.isCompatibleWith("0", "0"));
+
+      a2.findUpdates({
+        onCompatibilityUpdateAvailable: function(addon) {
+          do_check_true(a2.isCompatible);
+          do_check_false(a2.appDisabled);
+          do_check_true(a2.isActive);
+        },
+
+        onUpdateAvailable: function(addon, install) {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onNoUpdateAvailable: function(addon) {
+          do_check_eq(addon, a2);
+          do_execute_soon(check_test_3);
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+
+  check_test_3 = () => {
+    restartManager();
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+      do_check_neq(a2, null);
+      do_check_true(a2.isActive);
+      do_check_true(a2.isCompatible);
+      do_check_false(a2.appDisabled);
+      a2.uninstall();
+
+      run_next_test();
+    });
+  }
+
+  // Checks that we see no compatibility information when there is none.
+  add_test(function run_test_4() {
+    AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+      do_check_neq(a3, null);
+      do_check_false(a3.isActive);
+      do_check_false(a3.isCompatible);
+      do_check_true(a3.appDisabled);
+      do_check_true(a3.isCompatibleWith("5", "5"));
+      do_check_false(a3.isCompatibleWith("2", "2"));
+
+      a3.findUpdates({
+        sawUpdate: false,
+        onCompatibilityUpdateAvailable: function(addon) {
+          ok(false, "Should not have seen compatibility information");
+        },
+
+        onNoCompatibilityUpdateAvailable: function(addon) {
+          this.sawUpdate = true;
+        },
+
+        onUpdateAvailable: function(addon, install) {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onNoUpdateAvailable: function(addon) {
+          do_check_true(this.sawUpdate);
+          run_next_test();
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+
+  // Checks that compatibility info for future apps are detected but don't make
+  // the item compatibile.
+  let check_test_5;
+  add_test(function run_test_5() {
+    AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+      do_check_neq(a3, null);
+      do_check_false(a3.isActive);
+      do_check_false(a3.isCompatible);
+      do_check_true(a3.appDisabled);
+      do_check_true(a3.isCompatibleWith("5", "5"));
+      do_check_false(a3.isCompatibleWith("2", "2"));
+
+      a3.findUpdates({
+        sawUpdate: false,
+        onCompatibilityUpdateAvailable: function(addon) {
+          do_check_false(a3.isCompatible);
+          do_check_true(a3.appDisabled);
+          do_check_false(a3.isActive);
+          this.sawUpdate = true;
+        },
+
+        onNoCompatibilityUpdateAvailable: function(addon) {
+          ok(false, "Should have seen some compatibility information");
+        },
+
+        onUpdateAvailable: function(addon, install) {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onNoUpdateAvailable: function(addon) {
+          do_check_true(this.sawUpdate);
+          do_execute_soon(check_test_5);
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED, "3.0", "3.0");
+    });
+  });
+
+  check_test_5 = () => {
+    restartManager();
+    AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+      do_check_neq(a3, null);
+      do_check_false(a3.isActive);
+      do_check_false(a3.isCompatible);
+      do_check_true(a3.appDisabled);
+
+      a3.uninstall();
+      run_next_test();
+    });
+  }
+
+  // Test that background update checks work
+  let continue_test_6;
+  add_test(function run_test_6() {
+    restartManager();
+
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+    restartManager();
+
+    prepare_test({}, [
+      "onNewInstall",
+      "onDownloadStarted",
+      "onDownloadEnded"
+    ], continue_test_6);
+
+    AddonManagerInternal.backgroundUpdateCheck();
+  });
+
+  let check_test_6;
+  continue_test_6 = (install) => {
+    do_check_neq(install.existingAddon, null);
+    do_check_eq(install.existingAddon.id, "addon1@tests.mozilla.org");
+
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        "onInstalling"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], callback_soon(check_test_6));
+  }
+
+  check_test_6 = (install) => {
+    do_check_eq(install.existingAddon.pendingUpgrade.install, install);
+
+    restartManager();
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.version, "2.0");
+      do_check_eq(a1.releaseNotesURI.spec, "http://example.com/updateInfo.xhtml");
+      a1.uninstall();
+      run_next_test();
+    });
+  }
+
+  // Verify the parameter escaping in update urls.
+  add_test(function run_test_8() {
+    restartManager();
+
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "5.0",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "2"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon2@tests.mozilla.org",
+      version: "67.0.5b1",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: "toolkit@mozilla.org",
+        minVersion: "0",
+        maxVersion: "3"
+      }],
+      name: "Test Addon 2",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon3@tests.mozilla.org",
+      version: "1.3+",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0",
+        maxVersion: "0"
+      }, {
+        id: "toolkit@mozilla.org",
+        minVersion: "0",
+        maxVersion: "3"
+      }],
+      name: "Test Addon 3",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon4@tests.mozilla.org",
+      version: "0.5ab6",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "5"
+      }],
+      name: "Test Addon 4",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon5@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 5",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon6@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 6",
+    }, profileDir);
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", callback_soon(function(a2) {
+      a2.userDisabled = true;
+      restartManager();
+
+      testserver.registerPathHandler("/data/param_test.rdf", function(request, response) {
+        do_check_neq(request.queryString, "");
+        let [req_version, item_id, item_version,
+             item_maxappversion, item_status,
+             app_id, app_version, current_app_version,
+             app_os, app_abi, app_locale, update_type] =
+             request.queryString.split("/").map(a => decodeURIComponent(a));
+
+        do_check_eq(req_version, "2");
+
+        switch (item_id) {
+        case "addon1@tests.mozilla.org":
+          do_check_eq(item_version, "5.0");
+          do_check_eq(item_maxappversion, "2");
+          do_check_eq(item_status, "userEnabled");
+          do_check_eq(app_version, "1");
+          do_check_eq(update_type, "97");
+          break;
+        case "addon2@tests.mozilla.org":
+          do_check_eq(item_version, "67.0.5b1");
+          do_check_eq(item_maxappversion, "3");
+          do_check_eq(item_status, "userDisabled");
+          do_check_eq(app_version, "1");
+          do_check_eq(update_type, "49");
+          break;
+        case "addon3@tests.mozilla.org":
+          do_check_eq(item_version, "1.3+");
+          do_check_eq(item_maxappversion, "0");
+          do_check_eq(item_status, "userEnabled");
+          do_check_eq(app_version, "1");
+          do_check_eq(update_type, "112");
+          break;
+        case "addon4@tests.mozilla.org":
+          do_check_eq(item_version, "0.5ab6");
+          do_check_eq(item_maxappversion, "5");
+          do_check_eq(item_status, "userEnabled");
+          do_check_eq(app_version, "2");
+          do_check_eq(update_type, "98");
+          break;
+        case "addon5@tests.mozilla.org":
+          do_check_eq(item_version, "1.0");
+          do_check_eq(item_maxappversion, "1");
+          do_check_eq(item_status, "userEnabled");
+          do_check_eq(app_version, "1");
+          do_check_eq(update_type, "35");
+          break;
+        case "addon6@tests.mozilla.org":
+          do_check_eq(item_version, "1.0");
+          do_check_eq(item_maxappversion, "1");
+          do_check_eq(item_status, "userEnabled");
+          do_check_eq(app_version, "1");
+          do_check_eq(update_type, "99");
+          break;
+        default:
+          ok(false, "Update request for unexpected add-on " + item_id);
+        }
+
+        do_check_eq(app_id, "xpcshell@tests.mozilla.org");
+        do_check_eq(current_app_version, "1");
+        do_check_eq(app_os, "XPCShell");
+        do_check_eq(app_abi, "noarch-spidermonkey");
+        do_check_eq(app_locale, "fr-FR");
+
+        request.setStatusLine(null, 500, "Server Error");
+      });
+
+      AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                   "addon2@tests.mozilla.org",
+                                   "addon3@tests.mozilla.org",
+                                   "addon4@tests.mozilla.org",
+                                   "addon5@tests.mozilla.org",
+                                   "addon6@tests.mozilla.org"],
+                                   function([a1_2, a2_2, a3_2, a4_2, a5_2, a6_2]) {
+        let count = 6;
+
+        function next_test() {
+          a1_2.uninstall();
+          a2_2.uninstall();
+          a3_2.uninstall();
+          a4_2.uninstall();
+          a5_2.uninstall();
+          a6_2.uninstall();
+
+          restartManager();
+          run_next_test();
+        }
+
+        let compatListener = {
+          onUpdateFinished: function(addon, error) {
+            if (--count == 0)
+              do_execute_soon(next_test);
+          }
+        };
+
+        let updateListener = {
+          onUpdateAvailable: function(addon, update) {
+            // Dummy so the update checker knows we care about new versions
+          },
+
+          onUpdateFinished: function(addon, error) {
+            if (--count == 0)
+              do_execute_soon(next_test);
+          }
+        };
+
+        a1_2.findUpdates(updateListener, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+        a2_2.findUpdates(compatListener, AddonManager.UPDATE_WHEN_ADDON_INSTALLED);
+        a3_2.findUpdates(updateListener, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+        a4_2.findUpdates(updateListener, AddonManager.UPDATE_WHEN_NEW_APP_DETECTED, "2");
+        a5_2.findUpdates(compatListener, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
+        a6_2.findUpdates(updateListener, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
+      });
+    }));
+  });
+
+  // Tests that if an install.rdf claims compatibility then the add-on will be
+  // seen as compatible regardless of what the update.rdf says.
+  add_test(function run_test_9() {
+    writeInstallRDFForExtension({
+      id: "addon4@tests.mozilla.org",
+      version: "5.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon4@tests.mozilla.org", function(a4) {
+      do_check_true(a4.isActive, "addon4 is active");
+      do_check_true(a4.isCompatible, "addon4 is compatible");
+
+      run_next_test();
+    });
+  });
+
+  // Tests that a normal update check won't decrease a targetApplication's
+  // maxVersion.
+  add_test(function run_test_10() {
+    AddonManager.getAddonByID("addon4@tests.mozilla.org", function(a4) {
+      a4.findUpdates({
+        onUpdateFinished: function(addon) {
+          do_check_true(addon.isCompatible, "addon4 is compatible");
+
+          run_next_test();
+        }
+      }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+    });
+  });
+
+  // Tests that an update check for a new application will decrease a
+  // targetApplication's maxVersion.
+  add_test(function run_test_11() {
+    AddonManager.getAddonByID("addon4@tests.mozilla.org", function(a4) {
+      a4.findUpdates({
+        onUpdateFinished: function(addon) {
+          do_check_true(addon.isCompatible, "addon4 is not compatible");
+
+          run_next_test();
+        }
+      }, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
+    });
+  });
+
+  // Check that the decreased maxVersion applied and disables the add-on
+  add_test(function run_test_12() {
+    restartManager();
+
+    AddonManager.getAddonByID("addon4@tests.mozilla.org", function(a4) {
+      do_check_true(a4.isActive);
+      do_check_true(a4.isCompatible);
+
+      a4.uninstall();
+      run_next_test();
+    });
+  });
+
+  // Tests that a compatibility update is passed to the listener when there is
+  // compatibility info for the current version of the app but not for the
+  // version of the app that the caller requested an update check for, when
+  // strict compatibility checking is disabled.
+  let check_test_13;
+  add_test(function run_test_13() {
+    restartManager();
+
+    // Not initially compatible but the update check will make it compatible
+    writeInstallRDFForExtension({
+      id: "addon7@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0",
+        maxVersion: "0"
+      }],
+      name: "Test Addon 7",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.getAddonByID("addon7@tests.mozilla.org", function(a7) {
+      do_check_neq(a7, null);
+      do_check_true(a7.isActive);
+      do_check_true(a7.isCompatible);
+      do_check_false(a7.appDisabled);
+      do_check_true(a7.isCompatibleWith("0", "0"));
+
+      a7.findUpdates({
+        sawUpdate: false,
+        onNoCompatibilityUpdateAvailable: function(addon) {
+          ok(false, "Should have seen compatibility information");
+        },
+
+        onUpdateAvailable: function(addon, install) {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onUpdateFinished: function(addon) {
+          do_check_true(addon.isCompatible);
+          do_execute_soon(check_test_13);
+        }
+      }, AddonManager.UPDATE_WHEN_NEW_APP_DETECTED, "3.0", "3.0");
+    });
+  });
+
+  check_test_13 = () => {
+    restartManager();
+    AddonManager.getAddonByID("addon7@tests.mozilla.org", function(a7) {
+      do_check_neq(a7, null);
+      do_check_true(a7.isActive);
+      do_check_true(a7.isCompatible);
+      do_check_false(a7.appDisabled);
+
+      a7.uninstall();
+      run_next_test();
+    });
+  }
+
+  // Test that background update checks doesn't update an add-on that isn't
+  // allowed to update automatically.
+  let check_test_14;
+  add_test(function run_test_14() {
+    restartManager();
+
+    // Have an add-on there that will be updated so we see some events from it
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon8@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 8",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.getAddonByID("addon8@tests.mozilla.org", function(a8) {
+      a8.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+
+      // The background update check will find updates for both add-ons but only
+      // proceed to install one of them.
+      AddonManager.addInstallListener({
+        onNewInstall: function(aInstall) {
+          let id = aInstall.existingAddon.id;
+          ok((id == "addon1@tests.mozilla.org" || id == "addon8@tests.mozilla.org"),
+             "Saw unexpected onNewInstall for " + id);
+        },
+
+        onDownloadStarted: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onDownloadEnded: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onDownloadFailed: function(aInstall) {
+          ok(false, "Should not have seen onDownloadFailed event");
+        },
+
+        onDownloadCancelled: function(aInstall) {
+          ok(false, "Should not have seen onDownloadCancelled event");
+        },
+
+        onInstallStarted: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onInstallEnded: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+          do_check_eq(aInstall.existingAddon.pendingUpgrade.install, aInstall);
+
+          do_execute_soon(check_test_14);
+        },
+
+        onInstallFailed: function(aInstall) {
+          ok(false, "Should not have seen onInstallFailed event");
+        },
+
+        onInstallCancelled: function(aInstall) {
+          ok(false, "Should not have seen onInstallCancelled event");
+        },
+      });
+
+      AddonManagerInternal.backgroundUpdateCheck();
+    });
+  });
+
+  check_test_14 = () => {
+    restartManager();
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon8@tests.mozilla.org"], function([a1, a8]) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.version, "2.0");
+      a1.uninstall();
+
+      do_check_neq(a8, null);
+      do_check_eq(a8.version, "1.0");
+      a8.uninstall();
+
+      run_next_test();
+    });
+  }
+
+  // Test that background update checks doesn't update an add-on that is
+  // pending uninstall
+  let check_test_15;
+  add_test(function run_test_15() {
+    restartManager();
+
+    // Have an add-on there that will be updated so we see some events from it
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon8@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 8",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.getAddonByID("addon8@tests.mozilla.org", function(a8) {
+      a8.uninstall();
+      do_check_false(hasFlag(a8.permissions, AddonManager.PERM_CAN_UPGRADE));
+
+      // The background update check will find updates for both add-ons but only
+      // proceed to install one of them.
+      AddonManager.addInstallListener({
+        onNewInstall: function(aInstall) {
+          let id = aInstall.existingAddon.id;
+          ok((id == "addon1@tests.mozilla.org" || id == "addon8@tests.mozilla.org"),
+             "Saw unexpected onNewInstall for " + id);
+        },
+
+        onDownloadStarted: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onDownloadEnded: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onDownloadFailed: function(aInstall) {
+          ok(false, "Should not have seen onDownloadFailed event");
+        },
+
+        onDownloadCancelled: function(aInstall) {
+          ok(false, "Should not have seen onDownloadCancelled event");
+        },
+
+        onInstallStarted: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onInstallEnded: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+          do_execute_soon(check_test_15);
+        },
+
+        onInstallFailed: function(aInstall) {
+          ok(false, "Should not have seen onInstallFailed event");
+        },
+
+        onInstallCancelled: function(aInstall) {
+          ok(false, "Should not have seen onInstallCancelled event");
+        },
+      });
+
+      AddonManagerInternal.backgroundUpdateCheck();
+    });
+  });
+
+  check_test_15 = () => {
+    restartManager();
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon8@tests.mozilla.org"], function([a1, a8]) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.version, "2.0");
+      a1.uninstall();
+
+      do_check_eq(a8, null);
+
+      run_next_test();
+    });
+  }
+
+  add_test(function run_test_16() {
+    restartManager();
+
+    restartManager();
+
+    let url = "http://localhost:" + gPort + "/addons/test_install2_1.xpi";
+    AddonManager.getInstallForURL(url, function(aInstall) {
+      aInstall.addListener({
+        onInstallEnded: function() {
+         do_execute_soon(function install_2_1_ended() {
+          restartManager();
+
+          AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a1) {
+            do_check_neq(a1.syncGUID, null);
+            let oldGUID = a1.syncGUID;
+
+            let url_2 = "http://localhost:" + gPort + "/addons/test_install2_2.xpi";
+            AddonManager.getInstallForURL(url_2, function(aInstall_2) {
+              aInstall_2.addListener({
+                onInstallEnded: function() {
+                 do_execute_soon(function install_2_2_ended() {
+                  restartManager();
+
+                  AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+                    do_check_neq(a2.syncGUID, null);
+                    do_check_eq(oldGUID, a2.syncGUID);
+
+                    a2.uninstall();
+                    run_next_test();
+                  });
+                 });
+                }
+              });
+              aInstall_2.install();
+            }, "application/x-xpinstall");
+          });
+         });
+        }
+      });
+      aInstall.install();
+    }, "application/x-xpinstall");
+  });
+
+  // Test that the update check correctly observes the
+  // extensions.strictCompatibility pref and compatibility overrides.
+  add_test(function run_test_17() {
+    restartManager();
+
+    writeInstallRDFForExtension({
+      id: "addon9@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0.1",
+        maxVersion: "0.2"
+      }],
+      name: "Test Addon 9",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.addInstallListener({
+      onNewInstall: function(aInstall) {
+        equal(aInstall.existingAddon.id, "addon9@tests.mozilla.org",
+              "Saw unexpected onNewInstall for " + aInstall.existingAddon.id);
+        do_check_eq(aInstall.version, "3.0");
+      },
+      onDownloadFailed: function(aInstall) {
+        AddonManager.getAddonByID("addon9@tests.mozilla.org", function(a9) {
+          a9.uninstall();
+          run_next_test();
+        });
+      }
+    });
+
+    Services.prefs.setCharPref(PREF_GETADDONS_BYIDS,
+                               "http://localhost:" + gPort + "/data/test_update.xml");
+    Services.prefs.setCharPref(PREF_GETADDONS_BYIDS_PERFORMANCE,
+                               "http://localhost:" + gPort + "/data/test_update.xml");
+    Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+
+    AddonManagerInternal.backgroundUpdateCheck();
+  });
+
+  // Tests that compatibility updates are applied to addons when the updated
+  // compatibility data wouldn't match with strict compatibility enabled.
+  add_test(function run_test_18() {
+    restartManager();
+    writeInstallRDFForExtension({
+      id: "addon10@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0.1",
+        maxVersion: "0.2"
+      }],
+      name: "Test Addon 10",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.getAddonByID("addon10@tests.mozilla.org", function(a10) {
+      do_check_neq(a10, null);
+
+      a10.findUpdates({
+        onNoCompatibilityUpdateAvailable: function() {
+          ok(false, "Should have seen compatibility information");
+        },
+
+        onUpdateAvailable: function() {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onUpdateFinished: function() {
+          a10.uninstall();
+          run_next_test();
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+
+  // Test that the update check correctly observes when an addon opts-in to
+  // strict compatibility checking.
+  add_test(function run_test_19() {
+    restartManager();
+    writeInstallRDFForExtension({
+      id: "addon11@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0.1",
+        maxVersion: "0.2"
+      }],
+      name: "Test Addon 11",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.getAddonByID("addon11@tests.mozilla.org", function(a11) {
+      do_check_neq(a11, null);
+
+      a11.findUpdates({
+        onCompatibilityUpdateAvailable: function() {
+          ok(false, "Should have not have seen compatibility information");
+        },
+
+        onUpdateAvailable: function() {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onUpdateFinished: function() {
+          a11.uninstall();
+          run_next_test();
+        }
+     }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+
+  // Test that the update succeeds when the update.rdf URN contains a type prefix
+  // different from the add-on type
+  let continue_test_20;
+  add_test(function run_test_20() {
+    restartManager();
+    writeInstallRDFForExtension({
+      id: "addon12@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 12",
+    }, profileDir);
+    restartManager();
+
+    prepare_test({}, [
+      "onNewInstall",
+      "onDownloadStarted",
+      "onDownloadEnded"
+    ], continue_test_20);
+
+    AddonManagerPrivate.backgroundUpdateCheck();
+  });
+
+  let check_test_20;
+  continue_test_20 = (install) => {
+    do_check_neq(install.existingAddon, null);
+    do_check_eq(install.existingAddon.id, "addon12@tests.mozilla.org");
+
+    prepare_test({
+      "addon12@tests.mozilla.org": [
+        "onInstalling"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], callback_soon(check_test_20));
+  }
+
+  check_test_20 = (install) => {
+    do_check_eq(install.existingAddon.pendingUpgrade.install, install);
+
+    restartManager();
+    AddonManager.getAddonByID("addon12@tests.mozilla.org", function(a12) {
+      do_check_neq(a12, null);
+      do_check_eq(a12.version, "2.0");
+      do_check_eq(a12.type, "extension");
+      a12.uninstall();
+
+      do_execute_soon(() => {
+        restartManager();
+        run_next_test()
+      });
+    });
+  }
+
+  add_task(function* cleanup() {
+    let addons = yield new Promise(resolve => {
+      AddonManager.getAddonsByTypes(["extension"], resolve);
+    });
+
+    for (let addon of addons)
+      addon.uninstall();
+
+    yield promiseRestartManager();
+
+    shutdownManager();
+
+    yield new Promise(do_execute_soon);
+  });
+}
+
+// Test that background update checks work for lightweight themes
+add_test(function run_test_7() {
+  startupManager();
+
+  LightweightThemeManager.currentTheme = {
+    id: "1",
+    version: "1",
+    name: "Test LW Theme",
+    description: "A test theme",
+    author: "Mozilla",
+    homepageURL: "http://localhost:" + gPort + "/data/index.html",
+    headerURL: "http://localhost:" + gPort + "/data/header.png",
+    footerURL: "http://localhost:" + gPort + "/data/footer.png",
+    previewURL: "http://localhost:" + gPort + "/data/preview.png",
+    iconURL: "http://localhost:" + gPort + "/data/icon.png",
+    updateURL: "http://localhost:" + gPort + "/data/lwtheme.js"
+  };
+
+  // XXX The lightweight theme manager strips non-https updateURLs so hack it
+  // back in.
+  let themes = JSON.parse(Services.prefs.getCharPref("lightweightThemes.usedThemes"));
+  do_check_eq(themes.length, 1);
+  themes[0].updateURL = "http://localhost:" + gPort + "/data/lwtheme.js";
+  Services.prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(themes));
+
+  testserver.registerPathHandler("/data/lwtheme.js", function(request, response) {
+    // Server will specify an expiry in one year.
+    let expiry = new Date();
+    expiry.setFullYear(expiry.getFullYear() + 1);
+    response.setHeader("Expires", expiry.toUTCString(), false);
+    response.write(JSON.stringify({
+      id: "1",
+      version: "2",
+      name: "Updated Theme",
+      description: "A test theme",
+      author: "Mozilla",
+      homepageURL: "http://localhost:" + gPort + "/data/index2.html",
+      headerURL: "http://localhost:" + gPort + "/data/header.png",
+      footerURL: "http://localhost:" + gPort + "/data/footer.png",
+      previewURL: "http://localhost:" + gPort + "/data/preview.png",
+      iconURL: "http://localhost:" + gPort + "/data/icon2.png",
+      updateURL: "http://localhost:" + gPort + "/data/lwtheme.js"
+    }));
+  });
+
+  AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+    do_check_neq(p1, null);
+    do_check_eq(p1.version, "1");
+    do_check_eq(p1.name, "Test LW Theme");
+    do_check_true(p1.isActive);
+    do_check_eq(p1.installDate.getTime(), p1.updateDate.getTime());
+
+    // 5 seconds leeway seems like a lot, but tests can run slow and really if
+    // this is within 5 seconds it is fine. If it is going to be wrong then it
+    // is likely to be hours out at least
+    do_check_true((Date.now() - p1.installDate.getTime()) < 5000);
+
+    gInstallDate = p1.installDate.getTime();
+
+    prepare_test({
+      "1@personas.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onExternalInstall"
+    ], check_test_7);
+
+    AddonManagerInternal.backgroundUpdateCheck();
+  });
+});
+
+function check_test_7() {
+  AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+    do_check_neq(p1, null);
+    do_check_eq(p1.version, "2");
+    do_check_eq(p1.name, "Updated Theme");
+    do_check_eq(p1.installDate.getTime(), gInstallDate);
+    do_check_true(p1.installDate.getTime() < p1.updateDate.getTime());
+
+    // 5 seconds leeway seems like a lot, but tests can run slow and really if
+    // this is within 5 seconds it is fine. If it is going to be wrong then it
+    // is likely to be hours out at least
+    do_check_true((Date.now() - p1.updateDate.getTime()) < 5000);
+
+    gInstallDate = p1.installDate.getTime();
+
+    run_next_test();
+  });
+}
+
+// Test that background update checks for lightweight themes do not use the cache
+// The update body from test 7 shouldn't be used since the cache should be bypassed.
+add_test(function () {
+  // XXX The lightweight theme manager strips non-https updateURLs so hack it
+  // back in.
+  let themes = JSON.parse(Services.prefs.getCharPref("lightweightThemes.usedThemes"));
+  do_check_eq(themes.length, 1);
+  themes[0].updateURL = "http://localhost:" + gPort + "/data/lwtheme.js";
+  Services.prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(themes));
+
+  testserver.registerPathHandler("/data/lwtheme.js", function(request, response) {
+    response.write(JSON.stringify({
+      id: "1",
+      version: "3",
+      name: "Updated Theme v.3",
+      description: "A test theme v.3",
+      author: "John Smith",
+      homepageURL: "http://localhost:" + gPort + "/data/index3.html?v=3",
+      headerURL: "http://localhost:" + gPort + "/data/header.png?v=3",
+      footerURL: "http://localhost:" + gPort + "/data/footer.png?v=3",
+      previewURL: "http://localhost:" + gPort + "/data/preview.png?v=3",
+      iconURL: "http://localhost:" + gPort + "/data/icon2.png?v=3",
+      updateURL: "https://localhost:" + gPort + "/data/lwtheme.js?v=3"
+    }));
+  });
+
+  AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+    do_check_neq(p1, null);
+    do_check_eq(p1.version, "2");
+    do_check_eq(p1.name, "Updated Theme");
+    do_check_true(p1.isActive);
+    do_check_eq(p1.installDate.getTime(), gInstallDate);
+    do_check_true(p1.installDate.getTime() < p1.updateDate.getTime());
+
+    prepare_test({
+      "1@personas.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onExternalInstall"
+    ], check_test_7_cache);
+
+    AddonManagerInternal.backgroundUpdateCheck();
+  });
+});
+
+function check_test_7_cache() {
+  AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+    let currentTheme = LightweightThemeManager.currentTheme;
+    do_check_neq(p1, null);
+    do_check_eq(p1.version, "3");
+    do_check_eq(p1.name, "Updated Theme v.3");
+    do_check_eq(p1.description, "A test theme v.3");
+    do_print(JSON.stringify(p1));
+    do_check_eq(p1.creator.name, "John Smith");
+    do_check_eq(p1.homepageURL, "http://localhost:" + gPort + "/data/index3.html?v=3");
+    do_check_eq(p1.screenshots[0].url, "http://localhost:" + gPort + "/data/preview.png?v=3");
+    do_check_eq(p1.iconURL, "http://localhost:" + gPort + "/data/icon2.png?v=3");
+    do_check_eq(currentTheme.headerURL, "http://localhost:" + gPort + "/data/header.png?v=3");
+    do_check_eq(currentTheme.footerURL, "http://localhost:" + gPort + "/data/footer.png?v=3");
+    do_check_eq(currentTheme.updateURL, "https://localhost:" + gPort + "/data/lwtheme.js?v=3");
+
+    do_check_eq(p1.installDate.getTime(), gInstallDate);
+    do_check_true(p1.installDate.getTime() < p1.updateDate.getTime());
+
+    run_next_test();
+  });
+}
+
+// Test that the update check returns nothing for addons in locked install
+// locations.
+add_test(function run_test_locked_install() {
+  const lockedDir = gProfD.clone();
+  lockedDir.append("locked_extensions");
+  registerDirectory("XREAppFeat", lockedDir);
+  restartManager();
+  writeInstallRDFForExtension({
+    id: "addon13@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "http://localhost:" + gPort + "/data/test_update.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "0.1",
+      maxVersion: "0.2"
+    }],
+    name: "Test Addon 13",
+  }, lockedDir);
+  restartManager();
+
+  AddonManager.getAddonByID("addon13@tests.mozilla.org", function(a13) {
+    do_check_neq(a13, null);
+
+    a13.findUpdates({
+      onCompatibilityUpdateAvailable: function() {
+        ok(false, "Should have not have seen compatibility information");
+      },
+
+      onUpdateAvailable: function() {
+        ok(false, "Should not have seen an available update");
+      },
+
+      onUpdateFinished: function() {
+        ok(true, "Should have seen an onUpdateFinished");
+      }
+    }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  });
+
+  AddonManager.getAllInstalls(aInstalls => {
+    do_check_eq(aInstalls.length, 0);
+  });
+  run_next_test();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_updateCancel.js b/toolkit/mozapps/webextensions/test/xpcshell/test_updateCancel.js
new file mode 100644
index 000000000..b50fd4a55
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_updateCancel.js
@@ -0,0 +1,138 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Test cancelling add-on update checks while in progress (bug 925389)
+
+Components.utils.import("resource://gre/modules/Promise.jsm");
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+// Set up an HTTP server to respond to update requests
+Components.utils.import("resource://testing-common/httpd.js");
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+
+function run_test() {
+  // Kick off the task-based tests...
+  run_next_test();
+}
+
+// Install one extension
+// Start download of update check (but delay HTTP response)
+// Cancel update check
+//  - ensure we get cancel notification
+// complete HTTP response
+//  - ensure no callbacks after cancel
+//  - ensure update is gone
+
+// Create an addon update listener containing a promise
+// that resolves when the update is cancelled
+function makeCancelListener() {
+  let updated = Promise.defer();
+  return {
+    onUpdateAvailable: function(addon, install) {
+      updated.reject("Should not have seen onUpdateAvailable notification");
+    },
+
+    onUpdateFinished: function(aAddon, aError) {
+      do_print("onUpdateCheckFinished: " + aAddon.id + " " + aError);
+      updated.resolve(aError);
+    },
+    promise: updated.promise
+  };
+}
+
+// Set up the HTTP server so that we can control when it responds
+var httpReceived = Promise.defer();
+function dataHandler(aRequest, aResponse) {
+  aResponse.processAsync();
+  httpReceived.resolve([aRequest, aResponse]);
+}
+var testserver = new HttpServer();
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+testserver.registerPathHandler("/data/test_update.rdf", dataHandler);
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+
+// Set up an add-on for update check
+writeInstallRDFForExtension({
+  id: "addon1@tests.mozilla.org",
+  version: "1.0",
+  updateURL: "http://localhost:" + gPort + "/data/test_update.rdf",
+  targetApplications: [{
+    id: "xpcshell@tests.mozilla.org",
+    minVersion: "1",
+    maxVersion: "1"
+  }],
+  name: "Test Addon 1",
+}, profileDir);
+
+add_task(function* cancel_during_check() {
+  startupManager();
+
+  let a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+  do_check_neq(a1, null);
+
+  let listener = makeCancelListener();
+  a1.findUpdates(listener, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+
+  // Wait for the http request to arrive
+  let [request, response] = yield httpReceived.promise;
+
+  // cancelUpdate returns true if there is an update check in progress
+  do_check_true(a1.cancelUpdate());
+
+  let updateResult = yield listener.promise;
+  do_check_eq(AddonManager.UPDATE_STATUS_CANCELLED, updateResult);
+
+  // Now complete the HTTP request
+  let file = do_get_cwd();
+  file.append("data");
+  file.append("test_update.rdf");
+  let data = loadFile(file);
+  response.write(data);
+  response.finish();
+
+  // trying to cancel again should return false, i.e. nothing to cancel
+  do_check_false(a1.cancelUpdate());
+
+  yield true;
+});
+
+// Test that update check is cancelled if the XPI provider shuts down while
+// the update check is in progress
+add_task(function* shutdown_during_check() {
+  // Reset our HTTP listener
+  httpReceived = Promise.defer();
+
+  let a1 = yield promiseAddonByID("addon1@tests.mozilla.org");
+  do_check_neq(a1, null);
+
+  let listener = makeCancelListener();
+  a1.findUpdates(listener, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+
+  // Wait for the http request to arrive
+  let [request, response] = yield httpReceived.promise;
+
+  shutdownManager();
+
+  let updateResult = yield listener.promise;
+  do_check_eq(AddonManager.UPDATE_STATUS_CANCELLED, updateResult);
+
+  // Now complete the HTTP request
+  let file = do_get_cwd();
+  file.append("data");
+  file.append("test_update.rdf");
+  let data = loadFile(file);
+  response.write(data);
+  response.finish();
+
+  yield testserver.stop(Promise.defer().resolve);
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_update_compatmode.js b/toolkit/mozapps/webextensions/test/xpcshell/test_update_compatmode.js
new file mode 100644
index 000000000..a1d872009
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_update_compatmode.js
@@ -0,0 +1,184 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-on update check correctly fills in the
+// %COMPATIBILITY_MODE% token in the update URL.
+
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+Components.utils.import("resource://testing-common/httpd.js");
+var testserver = new HttpServer();
+testserver.start(-1);
+gPort = testserver.identity.primaryPort;
+mapFile("/data/test_updatecompatmode_ignore.rdf", testserver);
+mapFile("/data/test_updatecompatmode_normal.rdf", testserver);
+mapFile("/data/test_updatecompatmode_strict.rdf", testserver);
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  do_test_pending();
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  writeInstallRDFForExtension({
+    id: "compatmode-normal@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "http://localhost:" + gPort + "/data/test_updatecompatmode_%COMPATIBILITY_MODE%.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon - normal"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "compatmode-strict@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "http://localhost:" + gPort + "/data/test_updatecompatmode_%COMPATIBILITY_MODE%.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon - strict"
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "compatmode-strict-optin@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "http://localhost:" + gPort + "/data/test_updatecompatmode_%COMPATIBILITY_MODE%.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon - strict opt-in",
+    strictCompatibility: true
+  }, profileDir);
+
+  writeInstallRDFForExtension({
+    id: "compatmode-ignore@tests.mozilla.org",
+    version: "1.0",
+    updateURL: "http://localhost:" + gPort + "/data/test_updatecompatmode_%COMPATIBILITY_MODE%.rdf",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon - ignore",
+  }, profileDir);
+
+  startupManager();
+  run_test_1();
+}
+
+function end_test() {
+  testserver.stop(do_test_finished);
+}
+
+
+// Strict compatibility checking disabled.
+function run_test_1() {
+  do_print("Testing with strict compatibility checking disabled");
+  Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+  AddonManager.getAddonByID("compatmode-normal@tests.mozilla.org", function(addon) {
+    do_check_neq(addon, null);
+    addon.findUpdates({
+      onCompatibilityUpdateAvailable: function() {
+        do_throw("Should have not have seen compatibility information");
+      },
+
+      onNoUpdateAvailable: function() {
+        do_throw("Should have seen an available update");
+      },
+
+      onUpdateAvailable: function(unused, install) {
+        do_check_eq(install.version, "2.0")
+      },
+
+      onUpdateFinished: function() {
+        run_test_2();
+      }
+    }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  });
+}
+
+// Strict compatibility checking enabled.
+function run_test_2() {
+  do_print("Testing with strict compatibility checking enabled");
+  Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, true);
+  AddonManager.getAddonByID("compatmode-strict@tests.mozilla.org", function(addon) {
+    do_check_neq(addon, null);
+    addon.findUpdates({
+      onCompatibilityUpdateAvailable: function() {
+        do_throw("Should have not have seen compatibility information");
+      },
+
+      onNoUpdateAvailable: function() {
+        do_throw("Should have seen an available update");
+      },
+
+      onUpdateAvailable: function(unused, install) {
+        do_check_eq(install.version, "2.0")
+      },
+
+      onUpdateFinished: function() {
+        run_test_3();
+      }
+    }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  });
+}
+
+// Strict compatibility checking opt-in.
+function run_test_3() {
+  do_print("Testing with strict compatibility disabled, but addon opt-in");
+  Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+  AddonManager.getAddonByID("compatmode-strict-optin@tests.mozilla.org", function(addon) {
+    do_check_neq(addon, null);
+    addon.findUpdates({
+      onCompatibilityUpdateAvailable: function() {
+        do_throw("Should have not have seen compatibility information");
+      },
+
+      onUpdateAvailable: function() {
+        do_throw("Should not have seen an available update");
+      },
+
+      onUpdateFinished: function() {
+        run_test_4();
+      }
+    }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  });
+}
+
+// Compatibility checking disabled.
+function run_test_4() {
+  do_print("Testing with all compatibility checking disabled");
+  AddonManager.checkCompatibility = false;
+  AddonManager.getAddonByID("compatmode-ignore@tests.mozilla.org", function(addon) {
+    do_check_neq(addon, null);
+    addon.findUpdates({
+      onCompatibilityUpdateAvailable: function() {
+        do_throw("Should have not have seen compatibility information");
+      },
+
+      onNoUpdateAvailable: function() {
+        do_throw("Should have seen an available update");
+      },
+
+      onUpdateAvailable: function(unused, install) {
+        do_check_eq(install.version, "2.0")
+      },
+
+      onUpdateFinished: function() {
+        end_test();
+      }
+    }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_update_ignorecompat.js b/toolkit/mozapps/webextensions/test/xpcshell/test_update_ignorecompat.js
new file mode 100644
index 000000000..e899619d6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_update_ignorecompat.js
@@ -0,0 +1,107 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-on update checks work correctly when compatibility
+// check is disabled.
+
+const PREF_GETADDONS_CACHE_ENABLED = "extensions.getAddons.cache.enabled";
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+
+var testserver = createHttpServer();
+gPort = testserver.identity.primaryPort;
+mapFile("/data/test_update.rdf", testserver);
+mapFile("/data/test_update.json", testserver);
+mapFile("/data/test_update.xml", testserver);
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+let testParams = [
+  { updateFile: "test_update.rdf",
+    appId: "xpcshell@tests.mozilla.org" },
+  { updateFile: "test_update.json",
+    appId: "toolkit@mozilla.org" },
+];
+
+for (let test of testParams) {
+  let { updateFile, appId } = test;
+
+  // Test that the update check correctly observes the
+  // extensions.strictCompatibility pref and compatibility overrides.
+  add_test(function () {
+    writeInstallRDFForExtension({
+      id: "addon9@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0.1",
+        maxVersion: "0.2"
+      }],
+      name: "Test Addon 9",
+    }, profileDir);
+
+    restartManager();
+
+    AddonManager.addInstallListener({
+      onNewInstall: function(aInstall) {
+        if (aInstall.existingAddon.id != "addon9@tests.mozilla.org")
+          do_throw("Saw unexpected onNewInstall for " + aInstall.existingAddon.id);
+        do_check_eq(aInstall.version, "4.0");
+      },
+      onDownloadFailed: function(aInstall) {
+        run_next_test();
+      }
+    });
+
+    Services.prefs.setCharPref(PREF_GETADDONS_BYIDS_PERFORMANCE,
+                               "http://localhost:" + gPort + "/data/" + updateFile);
+    Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+
+    AddonManagerInternal.backgroundUpdateCheck();
+  });
+
+  // Test that the update check correctly observes when an addon opts-in to
+  // strict compatibility checking.
+  add_test(function () {
+    writeInstallRDFForExtension({
+      id: "addon11@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0.1",
+        maxVersion: "0.2"
+      }],
+      name: "Test Addon 11",
+    }, profileDir);
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon11@tests.mozilla.org", function(a11) {
+      do_check_neq(a11, null);
+
+      a11.findUpdates({
+        onCompatibilityUpdateAvailable: function() {
+          do_throw("Should not have seen compatibility information");
+        },
+
+        onUpdateAvailable: function() {
+          do_throw("Should not have seen an available update");
+        },
+
+        onUpdateFinished: function() {
+          run_next_test();
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_update_strictcompat.js b/toolkit/mozapps/webextensions/test/xpcshell/test_update_strictcompat.js
new file mode 100644
index 000000000..2b1f65a9f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_update_strictcompat.js
@@ -0,0 +1,1126 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that add-on update checks work
+
+const PREF_MATCH_OS_LOCALE = "intl.locale.matchOS";
+const PREF_SELECTED_LOCALE = "general.useragent.locale";
+const PREF_GETADDONS_CACHE_ENABLED = "extensions.getAddons.cache.enabled";
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, true);
+// This test requires lightweight themes update to be enabled even if the app
+// doesn't support lightweight themes.
+Services.prefs.setBoolPref("lightweightThemes.update.enabled", true);
+
+Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm");
+
+const PARAMS = "?%REQ_VERSION%/%ITEM_ID%/%ITEM_VERSION%/%ITEM_MAXAPPVERSION%/" +
+               "%ITEM_STATUS%/%APP_ID%/%APP_VERSION%/%CURRENT_APP_VERSION%/" +
+               "%APP_OS%/%APP_ABI%/%APP_LOCALE%/%UPDATE_TYPE%";
+
+var gInstallDate;
+
+var testserver = createHttpServer();
+gPort = testserver.identity.primaryPort;
+mapFile("/data/test_update.rdf", testserver);
+mapFile("/data/test_update.json", testserver);
+mapFile("/data/test_update.xml", testserver);
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  Services.prefs.setBoolPref(PREF_MATCH_OS_LOCALE, false);
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "fr-FR");
+
+  run_next_test();
+}
+
+let testParams = [
+  { updateFile: "test_update.rdf",
+    appId: "xpcshell@tests.mozilla.org" },
+  { updateFile: "test_update.json",
+    appId: "toolkit@mozilla.org" },
+];
+
+for (let test of testParams) {
+  let { updateFile, appId } = test;
+
+  add_test(function() {
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon2@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0",
+        maxVersion: "0"
+      }],
+      name: "Test Addon 2",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon3@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "5",
+        maxVersion: "5"
+      }],
+      name: "Test Addon 3",
+    }, profileDir);
+
+    startupManager();
+
+    run_next_test();
+  });
+
+  // Verify that an update is available and can be installed.
+  let check_test_1;
+  add_test(function run_test_1() {
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.version, "1.0");
+      do_check_eq(a1.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DEFAULT);
+      do_check_eq(a1.releaseNotesURI, null);
+
+      a1.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DEFAULT;
+
+      prepare_test({
+        "addon1@tests.mozilla.org": [
+          ["onPropertyChanged", ["applyBackgroundUpdates"]]
+        ]
+      });
+      a1.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+      check_test_completed();
+
+      a1.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+
+      prepare_test({}, [
+        "onNewInstall",
+      ]);
+
+      a1.findUpdates({
+        onNoCompatibilityUpdateAvailable: function(addon) {
+          ok(false, "Should not have seen onNoCompatibilityUpdateAvailable notification");
+        },
+
+        onUpdateAvailable: function(addon, install) {
+          ensure_test_completed();
+
+          AddonManager.getAllInstalls(function(aInstalls) {
+            do_check_eq(aInstalls.length, 1);
+            do_check_eq(aInstalls[0], install);
+
+            do_check_eq(addon, a1);
+            do_check_eq(install.name, addon.name);
+            do_check_eq(install.version, "2.0");
+            do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+            do_check_eq(install.existingAddon, addon);
+            do_check_eq(install.releaseNotesURI.spec, "http://example.com/updateInfo.xhtml");
+
+            // Verify that another update check returns the same AddonInstall
+            a1.findUpdates({
+              onNoCompatibilityUpdateAvailable: function() {
+                ok(false, "Should not have seen onNoCompatibilityUpdateAvailable notification");
+              },
+
+              onUpdateAvailable: function(newAddon, newInstall) {
+                AddonManager.getAllInstalls(function(aInstalls2) {
+                  do_check_eq(aInstalls2.length, 1);
+                  do_check_eq(aInstalls2[0], install);
+                  do_check_eq(newAddon, addon);
+                  do_check_eq(newInstall, install);
+
+                  prepare_test({}, [
+                    "onDownloadStarted",
+                    "onDownloadEnded",
+                  ], check_test_1);
+                  install.install();
+                });
+              },
+
+              onNoUpdateAvailable: function() {
+                ok(false, "Should not have seen onNoUpdateAvailable notification");
+              }
+            }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+          });
+        },
+
+        onNoUpdateAvailable: function(addon) {
+          ok(false, "Should not have seen onNoUpdateAvailable notification");
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+
+  let run_test_2;
+  check_test_1 = (install) => {
+    ensure_test_completed();
+    do_check_eq(install.state, AddonManager.STATE_DOWNLOADED);
+    run_test_2(install);
+    return false;
+  };
+
+  // Continue installing the update.
+  let check_test_2;
+  run_test_2 = (install) => {
+    // Verify that another update check returns no new update
+    install.existingAddon.findUpdates({
+      onNoCompatibilityUpdateAvailable: function(addon) {
+        ok(false, "Should not have seen onNoCompatibilityUpdateAvailable notification");
+      },
+
+      onUpdateAvailable: function() {
+        ok(false, "Should find no available update when one is already downloading");
+      },
+
+      onNoUpdateAvailable: function(addon) {
+        AddonManager.getAllInstalls(function(aInstalls) {
+          do_check_eq(aInstalls.length, 1);
+          do_check_eq(aInstalls[0], install);
+
+          prepare_test({
+            "addon1@tests.mozilla.org": [
+              "onInstalling"
+            ]
+          }, [
+            "onInstallStarted",
+            "onInstallEnded",
+          ], check_test_2);
+          install.install();
+        });
+      }
+    }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  };
+
+  check_test_2 = () => {
+    ensure_test_completed();
+
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", callback_soon(function(olda1) {
+      do_check_neq(olda1, null);
+      do_check_eq(olda1.version, "1.0");
+      do_check_true(isExtensionInAddonsList(profileDir, olda1.id));
+
+      shutdownManager();
+
+      startupManager();
+
+      do_check_true(isExtensionInAddonsList(profileDir, "addon1@tests.mozilla.org"));
+
+      AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+        do_check_neq(a1, null);
+        do_check_eq(a1.version, "2.0");
+        do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+        do_check_eq(a1.applyBackgroundUpdates, AddonManager.AUTOUPDATE_DISABLE);
+        do_check_eq(a1.releaseNotesURI.spec, "http://example.com/updateInfo.xhtml");
+
+        a1.uninstall();
+        run_next_test();
+      });
+    }));
+  };
+
+
+  // Check that an update check finds compatibility updates and applies them
+  let check_test_3;
+  add_test(function run_test_3() {
+    restartManager();
+
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+      do_check_neq(a2, null);
+      do_check_false(a2.isActive);
+      do_check_false(a2.isCompatible);
+      do_check_true(a2.appDisabled);
+      do_check_true(a2.isCompatibleWith("0", "0"));
+
+      a2.findUpdates({
+        onCompatibilityUpdateAvailable: function(addon) {
+          do_check_true(a2.isCompatible);
+          do_check_false(a2.appDisabled);
+          do_check_false(a2.isActive);
+        },
+
+        onUpdateAvailable: function(addon, install) {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onNoUpdateAvailable: function(addon) {
+          do_check_eq(addon, a2);
+          do_execute_soon(check_test_3);
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+
+  check_test_3 = () => {
+    restartManager();
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", function(a2) {
+      do_check_neq(a2, null);
+      do_check_true(a2.isActive);
+      do_check_true(a2.isCompatible);
+      do_check_false(a2.appDisabled);
+      a2.uninstall();
+
+      run_next_test();
+    });
+  }
+
+  // Checks that we see no compatibility information when there is none.
+  add_test(function run_test_4() {
+    AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+      do_check_neq(a3, null);
+      do_check_false(a3.isActive);
+      do_check_false(a3.isCompatible);
+      do_check_true(a3.appDisabled);
+      do_check_true(a3.isCompatibleWith("5", "5"));
+      do_check_false(a3.isCompatibleWith("2", "2"));
+
+      a3.findUpdates({
+        sawUpdate: false,
+        onCompatibilityUpdateAvailable: function(addon) {
+          ok(false, "Should not have seen compatibility information");
+        },
+
+        onNoCompatibilityUpdateAvailable: function(addon) {
+          this.sawUpdate = true;
+        },
+
+        onUpdateAvailable: function(addon, install) {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onNoUpdateAvailable: function(addon) {
+          do_check_true(this.sawUpdate);
+          run_next_test();
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+
+  // Checks that compatibility info for future apps are detected but don't make
+  // the item compatibile.
+  let check_test_5;
+  add_test(function run_test_5() {
+    AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+      do_check_neq(a3, null);
+      do_check_false(a3.isActive);
+      do_check_false(a3.isCompatible);
+      do_check_true(a3.appDisabled);
+      do_check_true(a3.isCompatibleWith("5", "5"));
+      do_check_false(a3.isCompatibleWith("2", "2"));
+
+      a3.findUpdates({
+        sawUpdate: false,
+        onCompatibilityUpdateAvailable: function(addon) {
+          do_check_false(a3.isCompatible);
+          do_check_true(a3.appDisabled);
+          do_check_false(a3.isActive);
+          this.sawUpdate = true;
+        },
+
+        onNoCompatibilityUpdateAvailable: function(addon) {
+          ok(false, "Should have seen some compatibility information");
+        },
+
+        onUpdateAvailable: function(addon, install) {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onNoUpdateAvailable: function(addon) {
+          do_check_true(this.sawUpdate);
+          do_execute_soon(check_test_5);
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED, "3.0", "3.0");
+    });
+  });
+
+  check_test_5 = () => {
+    restartManager();
+    AddonManager.getAddonByID("addon3@tests.mozilla.org", function(a3) {
+      do_check_neq(a3, null);
+      do_check_false(a3.isActive);
+      do_check_false(a3.isCompatible);
+      do_check_true(a3.appDisabled);
+
+      a3.uninstall();
+      run_next_test();
+    });
+  }
+
+  // Test that background update checks work
+  let continue_test_6;
+  add_test(function run_test_6() {
+    restartManager();
+
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+    restartManager();
+
+    prepare_test({}, [
+      "onNewInstall",
+      "onDownloadStarted",
+      "onDownloadEnded"
+    ], continue_test_6);
+
+    AddonManagerInternal.backgroundUpdateCheck();
+  });
+
+  let check_test_6;
+  continue_test_6 = (install) => {
+    do_check_neq(install.existingAddon, null);
+    do_check_eq(install.existingAddon.id, "addon1@tests.mozilla.org");
+
+    prepare_test({
+      "addon1@tests.mozilla.org": [
+        "onInstalling"
+      ]
+    }, [
+      "onInstallStarted",
+      "onInstallEnded",
+    ], callback_soon(check_test_6));
+  }
+
+  check_test_6 = (install) => {
+    do_check_eq(install.existingAddon.pendingUpgrade.install, install);
+
+    restartManager();
+    AddonManager.getAddonByID("addon1@tests.mozilla.org", function(a1) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.version, "2.0");
+      do_check_eq(a1.releaseNotesURI.spec, "http://example.com/updateInfo.xhtml");
+      a1.uninstall();
+      run_next_test();
+    });
+  }
+
+  // Verify the parameter escaping in update urls.
+  add_test(function run_test_8() {
+    restartManager();
+
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "5.0",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "2"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon2@tests.mozilla.org",
+      version: "67.0.5b1",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: "toolkit@mozilla.org",
+        minVersion: "0",
+        maxVersion: "3"
+      }],
+      name: "Test Addon 2",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon3@tests.mozilla.org",
+      version: "1.3+",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0",
+        maxVersion: "0"
+      }, {
+        id: "toolkit@mozilla.org",
+        minVersion: "0",
+        maxVersion: "3"
+      }],
+      name: "Test Addon 3",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon4@tests.mozilla.org",
+      version: "0.5ab6",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "5"
+      }],
+      name: "Test Addon 4",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon5@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 5",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon6@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/param_test.rdf" + PARAMS,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 6",
+    }, profileDir);
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon2@tests.mozilla.org", callback_soon(function(a2) {
+      a2.userDisabled = true;
+      restartManager();
+
+      testserver.registerPathHandler("/data/param_test.rdf", function(request, response) {
+        do_check_neq(request.queryString, "");
+        let [req_version, item_id, item_version,
+             item_maxappversion, item_status,
+             app_id, app_version, current_app_version,
+             app_os, app_abi, app_locale, update_type] =
+             request.queryString.split("/").map(a => decodeURIComponent(a));
+
+        do_check_eq(req_version, "2");
+
+        switch (item_id) {
+        case "addon1@tests.mozilla.org":
+          do_check_eq(item_version, "5.0");
+          do_check_eq(item_maxappversion, "2");
+          do_check_eq(item_status, "userEnabled");
+          do_check_eq(app_version, "1");
+          do_check_eq(update_type, "97");
+          break;
+        case "addon2@tests.mozilla.org":
+          do_check_eq(item_version, "67.0.5b1");
+          do_check_eq(item_maxappversion, "3");
+          do_check_eq(item_status, "userDisabled");
+          do_check_eq(app_version, "1");
+          do_check_eq(update_type, "49");
+          break;
+        case "addon3@tests.mozilla.org":
+          do_check_eq(item_version, "1.3+");
+          do_check_eq(item_maxappversion, "0");
+          do_check_eq(item_status, "userEnabled,incompatible");
+          do_check_eq(app_version, "1");
+          do_check_eq(update_type, "112");
+          break;
+        case "addon4@tests.mozilla.org":
+          do_check_eq(item_version, "0.5ab6");
+          do_check_eq(item_maxappversion, "5");
+          do_check_eq(item_status, "userEnabled");
+          do_check_eq(app_version, "2");
+          do_check_eq(update_type, "98");
+          break;
+        case "addon5@tests.mozilla.org":
+          do_check_eq(item_version, "1.0");
+          do_check_eq(item_maxappversion, "1");
+          do_check_eq(item_status, "userEnabled");
+          do_check_eq(app_version, "1");
+          do_check_eq(update_type, "35");
+          break;
+        case "addon6@tests.mozilla.org":
+          do_check_eq(item_version, "1.0");
+          do_check_eq(item_maxappversion, "1");
+          do_check_eq(item_status, "userEnabled");
+          do_check_eq(app_version, "1");
+          do_check_eq(update_type, "99");
+          break;
+        default:
+          ok(false, "Update request for unexpected add-on " + item_id);
+        }
+
+        do_check_eq(app_id, "xpcshell@tests.mozilla.org");
+        do_check_eq(current_app_version, "1");
+        do_check_eq(app_os, "XPCShell");
+        do_check_eq(app_abi, "noarch-spidermonkey");
+        do_check_eq(app_locale, "fr-FR");
+
+        request.setStatusLine(null, 500, "Server Error");
+      });
+
+      AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                   "addon2@tests.mozilla.org",
+                                   "addon3@tests.mozilla.org",
+                                   "addon4@tests.mozilla.org",
+                                   "addon5@tests.mozilla.org",
+                                   "addon6@tests.mozilla.org"],
+                                   function([a1_2, a2_2, a3_2, a4_2, a5_2, a6_2]) {
+        let count = 6;
+
+        function next_test() {
+          a1_2.uninstall();
+          a2_2.uninstall();
+          a3_2.uninstall();
+          a4_2.uninstall();
+          a5_2.uninstall();
+          a6_2.uninstall();
+
+          restartManager();
+          run_next_test();
+        }
+
+        let compatListener = {
+          onUpdateFinished: function(addon, error) {
+            if (--count == 0)
+              do_execute_soon(next_test);
+          }
+        };
+
+        let updateListener = {
+          onUpdateAvailable: function(addon, update) {
+            // Dummy so the update checker knows we care about new versions
+          },
+
+          onUpdateFinished: function(addon, error) {
+            if (--count == 0)
+              do_execute_soon(next_test);
+          }
+        };
+
+        a1_2.findUpdates(updateListener, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+        a2_2.findUpdates(compatListener, AddonManager.UPDATE_WHEN_ADDON_INSTALLED);
+        a3_2.findUpdates(updateListener, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+        a4_2.findUpdates(updateListener, AddonManager.UPDATE_WHEN_NEW_APP_DETECTED, "2");
+        a5_2.findUpdates(compatListener, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
+        a6_2.findUpdates(updateListener, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
+      });
+    }));
+  });
+
+  // Tests that if an install.rdf claims compatibility then the add-on will be
+  // seen as compatible regardless of what the update.rdf says.
+  add_test(function run_test_9() {
+    writeInstallRDFForExtension({
+      id: "addon4@tests.mozilla.org",
+      version: "5.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+
+    restartManager();
+
+    AddonManager.getAddonByID("addon4@tests.mozilla.org", function(a4) {
+      do_check_true(a4.isActive, "addon4 is active");
+      do_check_true(a4.isCompatible, "addon4 is compatible");
+
+      run_next_test();
+    });
+  });
+
+  // Tests that a normal update check won't decrease a targetApplication's
+  // maxVersion.
+  add_test(function run_test_10() {
+    AddonManager.getAddonByID("addon4@tests.mozilla.org", function(a4) {
+      a4.findUpdates({
+        onUpdateFinished: function(addon) {
+          do_check_true(addon.isCompatible, "addon4 is compatible");
+
+          run_next_test();
+        }
+      }, AddonManager.UPDATE_WHEN_PERIODIC_UPDATE);
+    });
+  });
+
+  // Tests that an update check for a new application will decrease a
+  // targetApplication's maxVersion.
+  add_test(function run_test_11() {
+    AddonManager.getAddonByID("addon4@tests.mozilla.org", function(a4) {
+      a4.findUpdates({
+        onUpdateFinished: function(addon) {
+          do_check_false(addon.isCompatible, "addon4 is compatible");
+
+          run_next_test();
+        }
+      }, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
+    });
+  });
+
+  // Check that the decreased maxVersion applied and disables the add-on
+  add_test(function run_test_12() {
+    restartManager();
+
+    AddonManager.getAddonByID("addon4@tests.mozilla.org", function(a4) {
+      do_check_false(a4.isActive, "addon4 is active");
+      do_check_false(a4.isCompatible, "addon4 is compatible");
+
+      a4.uninstall();
+      run_next_test();
+    });
+  });
+
+  // Tests that no compatibility update is passed to the listener when there is
+  // compatibility info for the current version of the app but not for the
+  // version of the app that the caller requested an update check for.
+  let check_test_13;
+  add_test(function run_test_13() {
+    restartManager();
+
+    // Not initially compatible but the update check will make it compatible
+    writeInstallRDFForExtension({
+      id: "addon7@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0",
+        maxVersion: "0"
+      }],
+      name: "Test Addon 7",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.getAddonByID("addon7@tests.mozilla.org", function(a7) {
+      do_check_neq(a7, null);
+      do_check_false(a7.isActive);
+      do_check_false(a7.isCompatible);
+      do_check_true(a7.appDisabled);
+      do_check_true(a7.isCompatibleWith("0", "0"));
+
+      a7.findUpdates({
+        sawUpdate: false,
+        onCompatibilityUpdateAvailable: function(addon) {
+          ok(false, "Should not have seen compatibility information");
+        },
+
+        onUpdateAvailable: function(addon, install) {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onUpdateFinished: function(addon) {
+          do_check_true(addon.isCompatible);
+          do_execute_soon(check_test_13);
+        }
+      }, AddonManager.UPDATE_WHEN_NEW_APP_DETECTED, "3.0", "3.0");
+    });
+  });
+
+  check_test_13 = () => {
+    restartManager();
+    AddonManager.getAddonByID("addon7@tests.mozilla.org", function(a7) {
+      do_check_neq(a7, null);
+      do_check_true(a7.isActive);
+      do_check_true(a7.isCompatible);
+      do_check_false(a7.appDisabled);
+
+      a7.uninstall();
+      run_next_test();
+    });
+  }
+
+  // Test that background update checks doesn't update an add-on that isn't
+  // allowed to update automatically.
+  let check_test_14;
+  add_test(function run_test_14() {
+    restartManager();
+
+    // Have an add-on there that will be updated so we see some events from it
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon8@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 8",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.getAddonByID("addon8@tests.mozilla.org", function(a8) {
+      a8.applyBackgroundUpdates = AddonManager.AUTOUPDATE_DISABLE;
+
+      // The background update check will find updates for both add-ons but only
+      // proceed to install one of them.
+      AddonManager.addInstallListener({
+        onNewInstall: function(aInstall) {
+          let id = aInstall.existingAddon.id;
+          ok((id == "addon1@tests.mozilla.org" || id == "addon8@tests.mozilla.org"),
+             "Saw unexpected onNewInstall for " + id);
+        },
+
+        onDownloadStarted: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onDownloadEnded: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onDownloadFailed: function(aInstall) {
+          ok(false, "Should not have seen onDownloadFailed event");
+        },
+
+        onDownloadCancelled: function(aInstall) {
+          ok(false, "Should not have seen onDownloadCancelled event");
+        },
+
+        onInstallStarted: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onInstallEnded: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+          do_check_eq(aInstall.existingAddon.pendingUpgrade.install, aInstall);
+
+          do_execute_soon(check_test_14);
+        },
+
+        onInstallFailed: function(aInstall) {
+          ok(false, "Should not have seen onInstallFailed event");
+        },
+
+        onInstallCancelled: function(aInstall) {
+          ok(false, "Should not have seen onInstallCancelled event");
+        },
+      });
+
+      AddonManagerInternal.backgroundUpdateCheck();
+    });
+  });
+
+  check_test_14 = () => {
+    restartManager();
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon8@tests.mozilla.org"], function([a1, a8]) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.version, "2.0");
+      a1.uninstall();
+
+      do_check_neq(a8, null);
+      do_check_eq(a8.version, "1.0");
+      a8.uninstall();
+
+      run_next_test();
+    });
+  }
+
+  // Test that background update checks doesn't update an add-on that is
+  // pending uninstall
+  let check_test_15;
+  add_test(function run_test_15() {
+    restartManager();
+
+    // Have an add-on there that will be updated so we see some events from it
+    writeInstallRDFForExtension({
+      id: "addon1@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 1",
+    }, profileDir);
+
+    writeInstallRDFForExtension({
+      id: "addon8@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "1",
+        maxVersion: "1"
+      }],
+      name: "Test Addon 8",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.getAddonByID("addon8@tests.mozilla.org", function(a8) {
+      a8.uninstall();
+      do_check_false(hasFlag(a8.permissions, AddonManager.PERM_CAN_UPGRADE));
+
+      // The background update check will find updates for both add-ons but only
+      // proceed to install one of them.
+      AddonManager.addInstallListener({
+        onNewInstall: function(aInstall) {
+          let id = aInstall.existingAddon.id;
+          ok((id == "addon1@tests.mozilla.org" || id == "addon8@tests.mozilla.org"),
+             "Saw unexpected onNewInstall for " + id);
+        },
+
+        onDownloadStarted: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onDownloadEnded: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onDownloadFailed: function(aInstall) {
+          ok(false, "Should not have seen onDownloadFailed event");
+        },
+
+        onDownloadCancelled: function(aInstall) {
+          ok(false, "Should not have seen onDownloadCancelled event");
+        },
+
+        onInstallStarted: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+        },
+
+        onInstallEnded: function(aInstall) {
+          do_check_eq(aInstall.existingAddon.id, "addon1@tests.mozilla.org");
+          do_execute_soon(check_test_15);
+        },
+
+        onInstallFailed: function(aInstall) {
+          ok(false, "Should not have seen onInstallFailed event");
+        },
+
+        onInstallCancelled: function(aInstall) {
+          ok(false, "Should not have seen onInstallCancelled event");
+        },
+      });
+
+      AddonManagerInternal.backgroundUpdateCheck();
+    });
+  });
+
+  check_test_15 = () => {
+    restartManager();
+    AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                                 "addon8@tests.mozilla.org"], function([a1, a8]) {
+      do_check_neq(a1, null);
+      do_check_eq(a1.version, "2.0");
+      a1.uninstall();
+
+      do_check_eq(a8, null);
+
+      run_next_test();
+    });
+  }
+
+  // Test that the update check correctly observes the
+  // extensions.strictCompatibility pref and compatibility overrides.
+  add_test(function run_test_17() {
+    restartManager();
+
+    writeInstallRDFForExtension({
+      id: "addon9@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0.1",
+        maxVersion: "0.2"
+      }],
+      name: "Test Addon 9",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.addInstallListener({
+      onNewInstall: function(aInstall) {
+        equal(aInstall.existingAddon.id, "addon9@tests.mozilla.org",
+              "Saw unexpected onNewInstall for " + aInstall.existingAddon.id);
+        do_check_eq(aInstall.version, "2.0");
+      },
+      onDownloadFailed: function(aInstall) {
+        AddonManager.getAddonByID("addon9@tests.mozilla.org", function(a9) {
+          a9.uninstall();
+          run_next_test();
+        });
+      }
+    });
+
+    Services.prefs.setCharPref(PREF_GETADDONS_BYIDS,
+                               "http://localhost:" + gPort + "/data/test_update.xml");
+    Services.prefs.setCharPref(PREF_GETADDONS_BYIDS_PERFORMANCE,
+                               "http://localhost:" + gPort + "/data/test_update.xml");
+    Services.prefs.setBoolPref(PREF_GETADDONS_CACHE_ENABLED, true);
+
+    AddonManagerInternal.backgroundUpdateCheck();
+  });
+
+  // Test that the update check correctly observes when an addon opts-in to
+  // strict compatibility checking.
+  add_test(function run_test_19() {
+    restartManager();
+    writeInstallRDFForExtension({
+      id: "addon11@tests.mozilla.org",
+      version: "1.0",
+      updateURL: "http://localhost:" + gPort + "/data/" + updateFile,
+      targetApplications: [{
+        id: appId,
+        minVersion: "0.1",
+        maxVersion: "0.2"
+      }],
+      name: "Test Addon 11",
+    }, profileDir);
+    restartManager();
+
+    AddonManager.getAddonByID("addon11@tests.mozilla.org", function(a11) {
+      do_check_neq(a11, null);
+
+      a11.findUpdates({
+        onCompatibilityUpdateAvailable: function() {
+          ok(false, "Should have not have seen compatibility information");
+        },
+
+        onUpdateAvailable: function() {
+          ok(false, "Should not have seen an available update");
+        },
+
+        onUpdateFinished: function() {
+          run_next_test();
+        }
+      }, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+    });
+  });
+
+  add_task(function* cleanup() {
+    let addons = yield new Promise(resolve => {
+      AddonManager.getAddonsByTypes(["extension"], resolve);
+    });
+
+    for (let addon of addons)
+      addon.uninstall();
+
+    yield promiseRestartManager();
+
+    shutdownManager();
+
+    yield new Promise(do_execute_soon);
+  });
+}
+
+// Test that background update checks work for lightweight themes
+add_test(function run_test_7() {
+  startupManager();
+
+  LightweightThemeManager.currentTheme = {
+    id: "1",
+    version: "1",
+    name: "Test LW Theme",
+    description: "A test theme",
+    author: "Mozilla",
+    homepageURL: "http://localhost:" + gPort + "/data/index.html",
+    headerURL: "http://localhost:" + gPort + "/data/header.png",
+    footerURL: "http://localhost:" + gPort + "/data/footer.png",
+    previewURL: "http://localhost:" + gPort + "/data/preview.png",
+    iconURL: "http://localhost:" + gPort + "/data/icon.png",
+    updateURL: "http://localhost:" + gPort + "/data/lwtheme.js"
+  };
+
+  // XXX The lightweight theme manager strips non-https updateURLs so hack it
+  // back in.
+  let themes = JSON.parse(Services.prefs.getCharPref("lightweightThemes.usedThemes"));
+  do_check_eq(themes.length, 1);
+  themes[0].updateURL = "http://localhost:" + gPort + "/data/lwtheme.js";
+  Services.prefs.setCharPref("lightweightThemes.usedThemes", JSON.stringify(themes));
+
+  testserver.registerPathHandler("/data/lwtheme.js", function(request, response) {
+    response.write(JSON.stringify({
+      id: "1",
+      version: "2",
+      name: "Updated Theme",
+      description: "A test theme",
+      author: "Mozilla",
+      homepageURL: "http://localhost:" + gPort + "/data/index2.html",
+      headerURL: "http://localhost:" + gPort + "/data/header.png",
+      footerURL: "http://localhost:" + gPort + "/data/footer.png",
+      previewURL: "http://localhost:" + gPort + "/data/preview.png",
+      iconURL: "http://localhost:" + gPort + "/data/icon2.png",
+      updateURL: "http://localhost:" + gPort + "/data/lwtheme.js"
+    }));
+  });
+
+  AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+    do_check_neq(p1, null);
+    do_check_eq(p1.version, "1");
+    do_check_eq(p1.name, "Test LW Theme");
+    do_check_true(p1.isActive);
+    do_check_eq(p1.installDate.getTime(), p1.updateDate.getTime());
+
+    // 5 seconds leeway seems like a lot, but tests can run slow and really if
+    // this is within 5 seconds it is fine. If it is going to be wrong then it
+    // is likely to be hours out at least
+    do_check_true((Date.now() - p1.installDate.getTime()) < 5000);
+
+    gInstallDate = p1.installDate.getTime();
+
+    prepare_test({
+      "1@personas.mozilla.org": [
+        ["onInstalling", false],
+        "onInstalled"
+      ]
+    }, [
+      "onExternalInstall"
+    ], check_test_7);
+
+    AddonManagerInternal.backgroundUpdateCheck();
+  });
+});
+
+function check_test_7() {
+  AddonManager.getAddonByID("1@personas.mozilla.org", function(p1) {
+    do_check_neq(p1, null);
+    do_check_eq(p1.version, "2");
+    do_check_eq(p1.name, "Updated Theme");
+    do_check_eq(p1.installDate.getTime(), gInstallDate);
+    do_check_true(p1.installDate.getTime() < p1.updateDate.getTime());
+
+    // 5 seconds leeway seems like a lot, but tests can run slow and really if
+    // this is within 5 seconds it is fine. If it is going to be wrong then it
+    // is likely to be hours out at least
+    do_check_true((Date.now() - p1.updateDate.getTime()) < 5000);
+
+    gInstallDate = p1.installDate.getTime();
+
+    run_next_test();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_update_webextensions.js b/toolkit/mozapps/webextensions/test/xpcshell/test_update_webextensions.js
new file mode 100644
index 000000000..ff5d5d321
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_update_webextensions.js
@@ -0,0 +1,248 @@
+"use strict";
+
+const TOOLKIT_ID = "toolkit@mozilla.org";
+
+// We don't have an easy way to serve update manifests from a secure URL.
+Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);
+
+var testserver = createHttpServer();
+gPort = testserver.identity.primaryPort;
+
+const uuidGenerator = AM_Cc["@mozilla.org/uuid-generator;1"].getService(AM_Ci.nsIUUIDGenerator);
+
+const extensionsDir = gProfD.clone();
+extensionsDir.append("extensions");
+
+const addonsDir = gTmpD.clone();
+addonsDir.append("addons");
+addonsDir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, 0o755);
+
+do_register_cleanup(() => addonsDir.remove(true));
+
+testserver.registerDirectory("/addons/", addonsDir);
+
+
+let gUpdateManifests = {};
+
+function mapManifest(aPath, aManifestData) {
+  gUpdateManifests[aPath] = aManifestData;
+  testserver.registerPathHandler(aPath, serveManifest);
+}
+
+function serveManifest(request, response) {
+  let manifest = gUpdateManifests[request.path];
+
+  response.setHeader("Content-Type", manifest.contentType, false);
+  response.write(manifest.data);
+}
+
+
+function promiseInstallWebExtension(aData) {
+  let addonFile = createTempWebExtensionFile(aData);
+
+  return promiseInstallAllFiles([addonFile]).then(() => {
+    Services.obs.notifyObservers(addonFile, "flush-cache-entry", null);
+    return promiseAddonByID(aData.id);
+  });
+}
+
+var checkUpdates = Task.async(function* (aData, aReason = AddonManager.UPDATE_WHEN_PERIODIC_UPDATE) {
+  function provide(obj, path, value) {
+    path = path.split(".");
+    let prop = path.pop();
+
+    for (let key of path) {
+      if (!(key in obj))
+          obj[key] = {};
+      obj = obj[key];
+    }
+
+    if (!(prop in obj))
+      obj[prop] = value;
+  }
+
+  let id = uuidGenerator.generateUUID().number;
+  provide(aData, "addon.id", id);
+  provide(aData, "addon.manifest.applications.gecko.id", id);
+
+  let updatePath = `/updates/${id}.json`.replace(/[{}]/g, "");
+  let updateUrl = `http://localhost:${gPort}${updatePath}`
+
+  let addonData = { updates: [] };
+  let manifestJSON = {
+    addons: { [id]: addonData }
+  };
+
+
+  provide(aData, "addon.manifest.applications.gecko.update_url", updateUrl);
+  let awaitInstall = promiseInstallWebExtension(aData.addon);
+
+
+  for (let version of Object.keys(aData.updates)) {
+    let update = aData.updates[version];
+    update.version = version;
+
+    provide(update, "addon.id", id);
+    provide(update, "addon.manifest.applications.gecko.id", id);
+    let addon = update.addon;
+
+    delete update.addon;
+
+    let file;
+    if (addon.rdf) {
+      provide(addon, "version", version);
+      provide(addon, "targetApplications", [{id: TOOLKIT_ID,
+                                             minVersion: "42",
+                                             maxVersion: "*"}]);
+
+      file = createTempXPIFile(addon);
+    } else {
+      provide(addon, "manifest.version", version);
+      file = createTempWebExtensionFile(addon);
+    }
+    file.moveTo(addonsDir, `${id}-${version}.xpi`.replace(/[{}]/g, ""));
+
+    let path = `/addons/${file.leafName}`;
+    provide(update, "update_link", `http://localhost:${gPort}${path}`);
+
+    addonData.updates.push(update);
+  }
+
+  mapManifest(updatePath, { data: JSON.stringify(manifestJSON),
+                            contentType: "application/json" });
+
+
+  let addon = yield awaitInstall;
+
+  let updates = yield promiseFindAddonUpdates(addon, aReason);
+  updates.addon = addon;
+
+  return updates;
+});
+
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "42.0", "42.0");
+
+  startupManager();
+  do_register_cleanup(promiseShutdownManager);
+
+  run_next_test();
+}
+
+
+// Check that compatibility updates are applied.
+add_task(function* checkUpdateMetadata() {
+  let update = yield checkUpdates({
+    addon: {
+      manifest: {
+        version: "1.0",
+        applications: { gecko: { strict_max_version: "45" } },
+      }
+    },
+    updates: {
+      "1.0": {
+        applications: { gecko: { strict_min_version: "40",
+                                 strict_max_version: "48" } },
+      }
+    }
+  });
+
+  ok(update.compatibilityUpdate, "have compat update");
+  ok(!update.updateAvailable, "have no add-on update");
+
+  ok(update.addon.isCompatibleWith("40", "40"), "compatible min");
+  ok(update.addon.isCompatibleWith("48", "48"), "compatible max");
+  ok(!update.addon.isCompatibleWith("49", "49"), "not compatible max");
+
+  update.addon.uninstall();
+});
+
+
+// Check that updates from web extensions to web extensions succeed.
+add_task(function* checkUpdateToWebExt() {
+  let update = yield checkUpdates({
+    addon: { manifest: { version: "1.0" } },
+    updates: {
+      "1.1": { },
+      "1.2": { },
+      "1.3": { "applications": { "gecko": { "strict_min_version": "48" } } },
+    }
+  });
+
+  ok(!update.compatibilityUpdate, "have no compat update");
+  ok(update.updateAvailable, "have add-on update");
+
+  equal(update.addon.version, "1.0", "add-on version");
+
+  yield promiseCompleteAllInstalls([update.updateAvailable]);
+
+  let addon = yield promiseAddonByID(update.addon.id);
+  equal(addon.version, "1.2", "new add-on version");
+
+  addon.uninstall();
+});
+
+
+// Check that updates from web extensions to XUL extensions fail.
+add_task(function* checkUpdateToRDF() {
+  let update = yield checkUpdates({
+    addon: { manifest: { version: "1.0" } },
+    updates: {
+      "1.1": { addon: { rdf: true } },
+    }
+  });
+
+  ok(!update.compatibilityUpdate, "have no compat update");
+  ok(update.updateAvailable, "have add-on update");
+
+  equal(update.addon.version, "1.0", "add-on version");
+
+  let result = yield new Promise((resolve, reject) => {
+    update.updateAvailable.addListener({
+      onDownloadFailed: resolve,
+      onDownloadEnded: reject,
+      onInstalling: reject,
+      onInstallStarted: reject,
+      onInstallEnded: reject,
+    });
+    update.updateAvailable.install();
+  });
+
+  equal(result.error, AddonManager.ERROR_UNEXPECTED_ADDON_TYPE, "error: unexpected add-on type");
+
+  let addon = yield promiseAddonByID(update.addon.id);
+  equal(addon.version, "1.0", "new add-on version");
+
+  addon.uninstall();
+});
+
+
+// Check that illegal update URLs are rejected.
+add_task(function* checkIllegalUpdateURL() {
+  const URLS = ["chrome://browser/content/",
+                "data:text/json,...",
+                "javascript:;",
+                "/"];
+
+  for (let url of URLS) {
+    let { messages } = yield promiseConsoleOutput(() => {
+      return new Promise((resolve, reject) => {
+        let addonFile = createTempWebExtensionFile({
+          manifest: { applications: { gecko: { update_url: url } } },
+        });
+
+        AddonManager.getInstallForFile(addonFile, install => {
+          Services.obs.notifyObservers(addonFile, "flush-cache-entry", null);
+
+          if (install && install.state == AddonManager.STATE_DOWNLOAD_FAILED)
+            resolve();
+          reject(new Error("Unexpected state: " + (install && install.state)))
+        });
+      });
+    });
+
+    ok(messages.some(msg => /Access denied for URL|may not load or link to|is not a valid URL/.test(msg)),
+       "Got checkLoadURI error");
+  }
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_updatecheck.js b/toolkit/mozapps/webextensions/test/xpcshell/test_updatecheck.js
new file mode 100644
index 000000000..e8529bb2c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_updatecheck.js
@@ -0,0 +1,236 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that AddonUpdateChecker works correctly
+
+Components.utils.import("resource://gre/modules/addons/AddonUpdateChecker.jsm");
+
+Components.utils.import("resource://testing-common/httpd.js");
+
+var testserver = createHttpServer(4444);
+testserver.registerDirectory("/data/", do_get_file("data"));
+
+function checkUpdates(aId, aUpdateKey, aUpdateFile) {
+  return new Promise((resolve, reject) => {
+    AddonUpdateChecker.checkForUpdates(aId, aUpdateKey, `http://localhost:4444/data/${aUpdateFile}`, {
+      onUpdateCheckComplete: resolve,
+
+      onUpdateCheckError: function(status) {
+        let error = new Error("Update check failed with status " + status);
+        error.status = status;
+        reject(error);
+      }
+    });
+  });
+}
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1");
+
+  run_next_test();
+}
+
+// Test that a basic update check returns the expected available updates
+add_task(function* () {
+  for (let file of ["test_updatecheck.rdf", "test_updatecheck.json"]) {
+    let updates = yield checkUpdates("updatecheck1@tests.mozilla.org", null, file);
+
+    equal(updates.length, 5);
+    let update = AddonUpdateChecker.getNewestCompatibleUpdate(updates);
+    notEqual(update, null);
+    equal(update.version, "3.0");
+    update = AddonUpdateChecker.getCompatibilityUpdate(updates, "2");
+    notEqual(update, null);
+    equal(update.version, "2.0");
+    equal(update.targetApplications[0].minVersion, "1");
+    equal(update.targetApplications[0].maxVersion, "2");
+  }
+});
+
+/*
+ * Tests that the security checks are applied correctly
+ *
+ * Test     signature   updateHash  updateLink   expected
+ *--------------------------------------------------------
+ * 2        absent      absent      http         fail
+ * 3        broken      absent      http         fail
+ * 4        correct     absent      http         no update
+ * 5        correct     sha1        http         update
+ * 6        corrent     absent      https        update
+ * 7        corrent     sha1        https        update
+ * 8        corrent     md2         http         no update
+ * 9        corrent     md2         https        update
+ */
+
+var updateKey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDK426erD/H3XtsjvaB5+PJqbhj" +
+                "Zc9EDI5OCJS8R3FIObJ9ZHJK1TXeaE7JWqt9WUmBWTEFvwS+FI9vWu8058N9CHhD" +
+                "NyeP6i4LuUYjTURnn7Yw/IgzyIJ2oKsYa32RuxAyteqAWqPT/J63wBixIeCxmysf" +
+                "awB/zH4KaPiY3vnrzQIDAQAB";
+
+add_task(function* () {
+  for (let file of ["test_updatecheck.rdf", "test_updatecheck.json"]) {
+    try {
+      yield checkUpdates("test_bug378216_5@tests.mozilla.org",
+                         updateKey, file);
+      throw "Expected the update check to fail";
+    } catch (e) {}
+  }
+});
+
+add_task(function* () {
+  for (let file of ["test_updatecheck.rdf", "test_updatecheck.json"]) {
+    try {
+      yield checkUpdates("test_bug378216_7@tests.mozilla.org",
+                         updateKey, file);
+
+      throw "Expected the update check to fail";
+    } catch (e) {}
+  }
+});
+
+add_task(function* () {
+  // Make sure that the JSON manifest is rejected when an update key is
+  // required, but perform the remaining tests which aren't expected to fail
+  // because of the update key, without requiring one for the JSON variant.
+
+  try {
+    let updates = yield checkUpdates("test_bug378216_8@tests.mozilla.org",
+                                     updateKey, "test_updatecheck.json");
+
+    throw "Expected the update check to fail";
+  } catch (e) {}
+
+  for (let [file, key] of [["test_updatecheck.rdf", updateKey],
+                           ["test_updatecheck.json", null]]) {
+    let updates = yield checkUpdates("test_bug378216_8@tests.mozilla.org",
+                                     key, file);
+    equal(updates.length, 1);
+    ok(!("updateURL" in updates[0]));
+  }
+});
+
+add_task(function* () {
+  for (let [file, key] of [["test_updatecheck.rdf", updateKey],
+                           ["test_updatecheck.json", null]]) {
+    let updates = yield checkUpdates("test_bug378216_9@tests.mozilla.org",
+                                     key, file);
+    equal(updates.length, 1);
+    equal(updates[0].version, "2.0");
+    ok("updateURL" in updates[0]);
+  }
+});
+
+add_task(function* () {
+  for (let [file, key] of [["test_updatecheck.rdf", updateKey],
+                           ["test_updatecheck.json", null]]) {
+    let updates = yield checkUpdates("test_bug378216_10@tests.mozilla.org",
+                                     key, file);
+    equal(updates.length, 1);
+    equal(updates[0].version, "2.0");
+    ok("updateURL" in updates[0]);
+  }
+});
+
+add_task(function* () {
+  for (let [file, key] of [["test_updatecheck.rdf", updateKey],
+                           ["test_updatecheck.json", null]]) {
+    let updates = yield checkUpdates("test_bug378216_11@tests.mozilla.org",
+                                     key, file);
+    equal(updates.length, 1);
+    equal(updates[0].version, "2.0");
+    ok("updateURL" in updates[0]);
+  }
+});
+
+add_task(function* () {
+  for (let [file, key] of [["test_updatecheck.rdf", updateKey],
+                           ["test_updatecheck.json", null]]) {
+    let updates = yield checkUpdates("test_bug378216_12@tests.mozilla.org",
+                                     key, file);
+    equal(updates.length, 1);
+    do_check_false("updateURL" in updates[0]);
+  }
+});
+
+add_task(function* () {
+  for (let [file, key] of [["test_updatecheck.rdf", updateKey],
+                           ["test_updatecheck.json", null]]) {
+    let updates = yield checkUpdates("test_bug378216_13@tests.mozilla.org",
+                                     key, file);
+    equal(updates.length, 1);
+    equal(updates[0].version, "2.0");
+    ok("updateURL" in updates[0]);
+  }
+});
+
+add_task(function* () {
+  for (let file of ["test_updatecheck.rdf", "test_updatecheck.json"]) {
+    let updates = yield checkUpdates("test_bug378216_14@tests.mozilla.org",
+                                     null, file);
+    equal(updates.length, 0);
+  }
+});
+
+add_task(function* () {
+  for (let file of ["test_updatecheck.rdf", "test_updatecheck.json"]) {
+    try {
+      yield checkUpdates("test_bug378216_15@tests.mozilla.org",
+                         null, file);
+
+      throw "Update check should have failed";
+    } catch (e) {
+      equal(e.status, AddonUpdateChecker.ERROR_PARSE_ERROR);
+    }
+  }
+});
+
+add_task(function* () {
+  for (let file of ["test_updatecheck.rdf", "test_updatecheck.json"]) {
+    let updates = yield checkUpdates("ignore-compat@tests.mozilla.org",
+                                     null, file);
+    equal(updates.length, 3);
+    let update = AddonUpdateChecker.getNewestCompatibleUpdate(
+      updates, null, null, true);
+    notEqual(update, null);
+    equal(update.version, 2);
+  }
+});
+
+add_task(function* () {
+  for (let file of ["test_updatecheck.rdf", "test_updatecheck.json"]) {
+    let updates = yield checkUpdates("compat-override@tests.mozilla.org",
+                                     null, file);
+    equal(updates.length, 3);
+    let overrides = [{
+      type: "incompatible",
+      minVersion: 1,
+      maxVersion: 2,
+      appID: "xpcshell@tests.mozilla.org",
+      appMinVersion: 0.1,
+      appMaxVersion: 0.2
+    }, {
+      type: "incompatible",
+      minVersion: 2,
+      maxVersion: 2,
+      appID: "xpcshell@tests.mozilla.org",
+      appMinVersion: 1,
+      appMaxVersion: 2
+    }];
+    let update = AddonUpdateChecker.getNewestCompatibleUpdate(
+      updates, null, null, true, false, overrides);
+    notEqual(update, null);
+    equal(update.version, 1);
+  }
+});
+
+add_task(function* () {
+  for (let file of ["test_updatecheck.rdf", "test_updatecheck.json"]) {
+    let updates = yield checkUpdates("compat-strict-optin@tests.mozilla.org",
+                                     null, file);
+    equal(updates.length, 1);
+    let update = AddonUpdateChecker.getNewestCompatibleUpdate(
+      updates, null, null, true, false);
+    equal(update, null);
+  }
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_updateid.js b/toolkit/mozapps/webextensions/test/xpcshell/test_updateid.js
new file mode 100644
index 000000000..f7e3e21e5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_updateid.js
@@ -0,0 +1,86 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that updating an add-on to a new ID works
+
+// The test extension uses an insecure update url.
+Services.prefs.setBoolPref("extensions.checkUpdateSecurity", false);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+function promiseInstallUpdate(install) {
+  return new Promise((resolve, reject) => {
+    install.addListener({
+      onDownloadFailed: () => {
+        let err = new Error("download error");
+        err.code = install.error;
+        reject(err);
+      },
+      onInstallFailed: () => {
+        let err = new Error("install error");
+        err.code = install.error;
+        reject(err);
+      },
+      onInstallEnded: resolve,
+    });
+
+    install.install();
+  });
+}
+
+// Create and configure the HTTP server.
+let testserver = createHttpServer(4444);
+testserver.registerDirectory("/data/", do_get_file("data"));
+testserver.registerDirectory("/addons/", do_get_file("addons"));
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+  run_next_test();
+}
+
+// Verify that an update to an add-on with a new ID fails
+add_task(function* test_update_new_id() {
+  yield promiseInstallFile(do_get_addon("test_updateid1"));
+
+  let addon = yield promiseAddonByID("addon1@tests.mozilla.org");
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+
+  let update = yield promiseFindAddonUpdates(addon, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  let install = update.updateAvailable;
+  do_check_eq(install.name, addon.name);
+  do_check_eq(install.version, "2.0");
+  do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+  do_check_eq(install.existingAddon, addon);
+
+  yield Assert.rejects(promiseInstallUpdate(install),
+                       function(err) { return err.code == AddonManager.ERROR_INCORRECT_ID },
+                       "Upgrade to a different ID fails");
+
+  addon.uninstall();
+});
+
+// Verify that an update to a multi-package xpi fails
+add_task(function* test_update_new_id() {
+  yield promiseInstallFile(do_get_addon("test_update_multi1"));
+
+  let addon = yield promiseAddonByID("updatemulti@tests.mozilla.org");
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+
+  let update = yield promiseFindAddonUpdates(addon, AddonManager.UPDATE_WHEN_USER_REQUESTED);
+  let install = update.updateAvailable;
+  do_check_eq(install.name, addon.name);
+  do_check_eq(install.version, "2.0");
+  do_check_eq(install.state, AddonManager.STATE_AVAILABLE);
+  do_check_eq(install.existingAddon, addon);
+
+  yield Assert.rejects(promiseInstallUpdate(install),
+                       function(err) { return err.code == AddonManager.ERROR_UNEXPECTED_ADDON_TYPE },
+                       "Upgrade to a multipackage xpi fails");
+
+  addon.uninstall();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_upgrade.js b/toolkit/mozapps/webextensions/test/xpcshell/test_upgrade.js
new file mode 100644
index 000000000..dc3d9438a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_upgrade.js
@@ -0,0 +1,206 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that app upgrades produce the expected behaviours,
+// with strict compatibility checking disabled.
+
+Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, false);
+
+// Enable loading extensions from the application scope
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE +
+                          AddonManager.SCOPE_APPLICATION);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+const globalDir = Services.dirsvc.get("XREAddonAppDir", AM_Ci.nsIFile);
+globalDir.append("extensions");
+
+var gGlobalExisted = globalDir.exists();
+var gInstallTime = Date.now();
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  // Will be compatible in the first version and incompatible in subsequent versions
+  writeInstallRDFForExtension({
+    id: "addon1@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 1",
+    targetPlatforms: [
+      "XPCShell",
+      "WINNT_x86",
+    ]
+  }, profileDir);
+
+  // Works in all tested versions
+  writeInstallRDFForExtension({
+    id: "addon2@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }],
+    name: "Test Addon 2",
+    targetPlatforms: [
+      "XPCShell_noarch-spidermonkey"
+    ]
+  }, profileDir);
+
+  // Will be disabled in the first version and enabled in the second.
+  writeInstallRDFForExtension({
+    id: "addon3@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "2",
+      maxVersion: "2"
+    }],
+    name: "Test Addon 3",
+  }, profileDir);
+
+  // Will be compatible in both versions but will change version in between
+  var dest = writeInstallRDFForExtension({
+    id: "addon4@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 4",
+  }, globalDir);
+  setExtensionModifiedTime(dest, gInstallTime);
+
+  do_test_pending();
+
+  run_test_1();
+}
+
+function end_test() {
+  if (!gGlobalExisted) {
+    globalDir.remove(true);
+  }
+  else {
+    globalDir.append(do_get_expected_addon_name("addon4@tests.mozilla.org"));
+    globalDir.remove(true);
+  }
+  do_execute_soon(do_test_finished);
+}
+
+// Test that the test extensions are all installed
+function run_test_1() {
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org"],
+                               function([a1, a2, a3, a4]) {
+
+    do_check_neq(a1, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+    do_check_neq(a2, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+
+    do_check_neq(a3, null);
+    do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+
+    do_check_neq(a4, null);
+    do_check_true(isExtensionInAddonsList(globalDir, a4.id));
+    do_check_eq(a4.version, "1.0");
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+// Test that upgrading the application doesn't disable now incompatible add-ons
+function run_test_2() {
+  // Upgrade the extension
+  var dest = writeInstallRDFForExtension({
+    id: "addon4@tests.mozilla.org",
+    version: "2.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "2",
+      maxVersion: "2"
+    }],
+    name: "Test Addon 4",
+  }, globalDir);
+  setExtensionModifiedTime(dest, gInstallTime);
+
+  restartManager("2");
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org"],
+                               function([a1, a2, a3, a4]) {
+
+    do_check_neq(a1, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+    do_check_neq(a2, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+
+    do_check_neq(a3, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+    do_check_neq(a4, null);
+    do_check_true(isExtensionInAddonsList(globalDir, a4.id));
+    do_check_eq(a4.version, "2.0");
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Test that nothing changes when only the build ID changes.
+function run_test_3() {
+  // Upgrade the extension
+  var dest = writeInstallRDFForExtension({
+    id: "addon4@tests.mozilla.org",
+    version: "3.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "3",
+      maxVersion: "3"
+    }],
+    name: "Test Addon 4",
+  }, globalDir);
+  setExtensionModifiedTime(dest, gInstallTime);
+
+  // Simulates a simple Build ID change, the platform deletes extensions.ini
+  // whenever the application is changed.
+  gExtensionsINI.remove(true);
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org"],
+                               function([a1, a2, a3, a4]) {
+
+    do_check_neq(a1, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+    do_check_neq(a2, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+
+    do_check_neq(a3, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+    do_check_neq(a4, null);
+    do_check_true(isExtensionInAddonsList(globalDir, a4.id));
+    do_check_eq(a4.version, "2.0");
+
+    end_test();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_upgrade_strictcompat.js b/toolkit/mozapps/webextensions/test/xpcshell/test_upgrade_strictcompat.js
new file mode 100644
index 000000000..c2203d097
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_upgrade_strictcompat.js
@@ -0,0 +1,209 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// This verifies that app upgrades produce the expected behaviours,
+// with strict compatibility checking enabled.
+
+// Enable loading extensions from the application scope
+Services.prefs.setIntPref("extensions.enabledScopes",
+                          AddonManager.SCOPE_PROFILE +
+                          AddonManager.SCOPE_APPLICATION);
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+const globalDir = Services.dirsvc.get("XREAddonAppDir", AM_Ci.nsIFile);
+globalDir.append("extensions");
+
+var gGlobalExisted = globalDir.exists();
+var gInstallTime = Date.now();
+
+function run_test() {
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+
+  // Will be enabled in the first version and disabled in subsequent versions
+  writeInstallRDFForExtension({
+    id: "addon1@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 1",
+    targetPlatforms: [
+      "XPCShell",
+      "WINNT_x86",
+    ]
+  }, profileDir);
+
+  // Works in all tested versions
+  writeInstallRDFForExtension({
+    id: "addon2@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "2"
+    }],
+    name: "Test Addon 2",
+    targetPlatforms: [
+      "XPCShell_noarch-spidermonkey"
+    ]
+  }, profileDir);
+
+  // Will be disabled in the first version and enabled in the second.
+  writeInstallRDFForExtension({
+    id: "addon3@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "2",
+      maxVersion: "2"
+    }],
+    name: "Test Addon 3",
+  }, profileDir);
+
+  // Will be enabled in both versions but will change version in between
+  var dest = writeInstallRDFForExtension({
+    id: "addon4@tests.mozilla.org",
+    version: "1.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1"
+    }],
+    name: "Test Addon 4",
+  }, globalDir);
+  setExtensionModifiedTime(dest, gInstallTime);
+
+  do_test_pending();
+
+  Services.prefs.setBoolPref(PREF_EM_STRICT_COMPATIBILITY, true);
+
+  run_test_1();
+}
+
+function end_test() {
+  if (!gGlobalExisted) {
+    globalDir.remove(true);
+  }
+  else {
+    globalDir.append(do_get_expected_addon_name("addon4@tests.mozilla.org"));
+    globalDir.remove(true);
+  }
+
+  Services.prefs.clearUserPref(PREF_EM_STRICT_COMPATIBILITY);
+
+  do_execute_soon(do_test_finished);
+}
+
+// Test that the test extensions are all installed
+function run_test_1() {
+  startupManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org"],
+                               function([a1, a2, a3, a4]) {
+
+    do_check_neq(a1, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a1.id));
+
+    do_check_neq(a2, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+
+    do_check_neq(a3, null);
+    do_check_false(isExtensionInAddonsList(profileDir, a3.id));
+
+    do_check_neq(a4, null);
+    do_check_true(isExtensionInAddonsList(globalDir, a4.id));
+    do_check_eq(a4.version, "1.0");
+
+    do_execute_soon(run_test_2);
+  });
+}
+
+// Test that upgrading the application disables now incompatible add-ons
+function run_test_2() {
+  // Upgrade the extension
+  var dest = writeInstallRDFForExtension({
+    id: "addon4@tests.mozilla.org",
+    version: "2.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "2",
+      maxVersion: "2"
+    }],
+    name: "Test Addon 4",
+  }, globalDir);
+  setExtensionModifiedTime(dest, gInstallTime);
+
+  restartManager("2");
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org"],
+                               function([a1, a2, a3, a4]) {
+
+    do_check_neq(a1, null);
+    do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+
+    do_check_neq(a2, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+
+    do_check_neq(a3, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+    do_check_neq(a4, null);
+    do_check_true(isExtensionInAddonsList(globalDir, a4.id));
+    do_check_eq(a4.version, "2.0");
+
+    do_execute_soon(run_test_3);
+  });
+}
+
+// Test that nothing changes when only the build ID changes.
+function run_test_3() {
+  // Upgrade the extension
+  var dest = writeInstallRDFForExtension({
+    id: "addon4@tests.mozilla.org",
+    version: "3.0",
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "3",
+      maxVersion: "3"
+    }],
+    name: "Test Addon 4",
+  }, globalDir);
+  setExtensionModifiedTime(dest, gInstallTime);
+
+  // Simulates a simple Build ID change, the platform deletes extensions.ini
+  // whenever the application is changed.
+  gExtensionsINI.remove(true);
+  restartManager();
+
+  AddonManager.getAddonsByIDs(["addon1@tests.mozilla.org",
+                               "addon2@tests.mozilla.org",
+                               "addon3@tests.mozilla.org",
+                               "addon4@tests.mozilla.org"],
+                               function([a1, a2, a3, a4]) {
+
+    do_check_neq(a1, null);
+    do_check_false(isExtensionInAddonsList(profileDir, a1.id));
+
+    do_check_neq(a2, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a2.id));
+
+    do_check_neq(a3, null);
+    do_check_true(isExtensionInAddonsList(profileDir, a3.id));
+
+    do_check_neq(a4, null);
+    do_check_true(isExtensionInAddonsList(globalDir, a4.id));
+    do_check_eq(a4.version, "2.0");
+
+    end_test();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_webextension.js b/toolkit/mozapps/webextensions/test/xpcshell/test_webextension.js
new file mode 100644
index 000000000..b51f47977
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_webextension.js
@@ -0,0 +1,421 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://gre/modules/AppConstants.jsm");
+
+const ID = "webextension1@tests.mozilla.org";
+
+const PREF_SELECTED_LOCALE = "general.useragent.locale";
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+startupManager();
+
+const { GlobalManager, Management } = Components.utils.import("resource://gre/modules/Extension.jsm", {});
+
+function promiseAddonStartup() {
+  return new Promise(resolve => {
+    let listener = (evt, extension) => {
+      Management.off("ready", listener);
+      resolve(extension);
+    };
+
+    Management.on("ready", listener);
+  });
+}
+
+function promiseInstallWebExtension(aData) {
+  let addonFile = createTempWebExtensionFile(aData);
+
+  return promiseInstallAllFiles([addonFile]).then(() => {
+    Services.obs.notifyObservers(addonFile, "flush-cache-entry", null);
+    return promiseAddonStartup();
+  });
+}
+
+add_task(function*() {
+  equal(GlobalManager.extensionMap.size, 0);
+
+  yield Promise.all([
+    promiseInstallAllFiles([do_get_addon("webextension_1")], true),
+    promiseAddonStartup()
+  ]);
+
+  equal(GlobalManager.extensionMap.size, 1);
+  ok(GlobalManager.extensionMap.has(ID));
+
+  let chromeReg = AM_Cc["@mozilla.org/chrome/chrome-registry;1"].
+                  getService(AM_Ci.nsIChromeRegistry);
+  try {
+    chromeReg.convertChromeURL(NetUtil.newURI("chrome://webex/content/webex.xul"));
+    do_throw("Chrome manifest should not have been registered");
+  }
+  catch (e) {
+    // Expected the chrome url to not be registered
+  }
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Web Extension Name");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_false(addon.isSystem);
+  do_check_eq(addon.type, "extension");
+  do_check_true(addon.isWebExtension);
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  let uri = do_get_addon_root_uri(profileDir, ID);
+
+  do_check_eq(addon.iconURL, uri + "icon48.png");
+  do_check_eq(addon.icon64URL, uri + "icon64.png");
+
+  // Should persist through a restart
+  yield promiseShutdownManager();
+
+  equal(GlobalManager.extensionMap.size, 0);
+
+  startupManager();
+  yield promiseAddonStartup();
+
+  equal(GlobalManager.extensionMap.size, 1);
+  ok(GlobalManager.extensionMap.has(ID));
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Web Extension Name");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_false(addon.isSystem);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  let file = getFileForAddon(profileDir, ID);
+  do_check_true(file.exists());
+
+  uri = do_get_addon_root_uri(profileDir, ID);
+
+  do_check_eq(addon.iconURL, uri + "icon48.png");
+  do_check_eq(addon.icon64URL, uri + "icon64.png");
+
+  addon.userDisabled = true;
+
+  equal(GlobalManager.extensionMap.size, 0);
+
+  addon.userDisabled = false;
+  yield promiseAddonStartup();
+
+  equal(GlobalManager.extensionMap.size, 1);
+  ok(GlobalManager.extensionMap.has(ID));
+
+  addon.uninstall();
+
+  equal(GlobalManager.extensionMap.size, 0);
+  do_check_false(GlobalManager.extensionMap.has(ID));
+
+  yield promiseShutdownManager();
+});
+
+// Writing the manifest direct to the profile should work
+add_task(function*() {
+  yield promiseWriteWebManifestForExtension({
+    name: "Web Extension Name",
+    version: "1.0",
+    manifest_version: 2,
+    applications: {
+      gecko: {
+        id: ID
+      }
+    }
+  }, profileDir);
+
+  startupManager();
+  yield promiseAddonStartup();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+  do_check_eq(addon.version, "1.0");
+  do_check_eq(addon.name, "Web Extension Name");
+  do_check_true(addon.isCompatible);
+  do_check_false(addon.appDisabled);
+  do_check_true(addon.isActive);
+  do_check_false(addon.isSystem);
+  do_check_eq(addon.type, "extension");
+  do_check_eq(addon.signedState, mozinfo.addon_signing ? AddonManager.SIGNEDSTATE_SIGNED : AddonManager.SIGNEDSTATE_NOT_REQUIRED);
+
+  let file = getFileForAddon(profileDir, ID);
+  do_check_true(file.exists());
+
+  addon.uninstall();
+
+  yield promiseRestartManager();
+});
+
+add_task(function* test_manifest_localization() {
+  const extensionId = "webextension3@tests.mozilla.org";
+
+  yield promiseInstallAllFiles([do_get_addon("webextension_3")], true);
+  yield promiseAddonStartup();
+
+  let addon = yield promiseAddonByID(extensionId);
+  addon.userDisabled = true;
+
+  equal(addon.name, "Web Extensiøn foo ☹");
+  equal(addon.description, "Descriptïon bar ☹ of add-on");
+
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "fr-FR");
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(extensionId);
+
+  equal(addon.name, "Web Extensiøn le foo ☺");
+  equal(addon.description, "Descriptïon le bar ☺ of add-on");
+
+  Services.prefs.setCharPref(PREF_SELECTED_LOCALE, "de");
+  yield promiseRestartManager();
+
+  addon = yield promiseAddonByID(extensionId);
+
+  equal(addon.name, "Web Extensiøn foo ☹");
+  equal(addon.description, "Descriptïon bar ☹ of add-on");
+
+  addon.uninstall();
+});
+
+// Missing version should cause a failure
+add_task(function*() {
+  yield promiseWriteWebManifestForExtension({
+    name: "Web Extension Name",
+    manifest_version: 2,
+    applications: {
+      gecko: {
+        id: ID
+      }
+    }
+  }, profileDir);
+
+  yield promiseRestartManager();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon, null);
+
+  let file = getFileForAddon(profileDir, ID);
+  do_check_false(file.exists());
+
+  yield promiseRestartManager();
+});
+
+// Incorrect manifest version should cause a failure
+add_task(function*() {
+  yield promiseWriteWebManifestForExtension({
+    name: "Web Extension Name",
+    version: "1.0",
+    manifest_version: 1,
+    applications: {
+      gecko: {
+        id: ID
+      }
+    }
+  }, profileDir);
+
+  yield promiseRestartManager();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_eq(addon, null);
+
+  let file = getFileForAddon(profileDir, ID);
+  do_check_false(file.exists());
+
+  yield promiseRestartManager();
+});
+
+// install.rdf should be read before manifest.json
+add_task(function*() {
+
+  yield Promise.all([
+    promiseInstallAllFiles([do_get_addon("webextension_2")], true)
+  ]);
+
+  yield promiseRestartManager();
+
+  let installrdf_id = "first-webextension2@tests.mozilla.org";
+  let first_addon = yield promiseAddonByID(installrdf_id);
+  do_check_neq(first_addon, null);
+  do_check_false(first_addon.appDisabled);
+  do_check_true(first_addon.isActive);
+  do_check_false(first_addon.isSystem);
+
+  let manifestjson_id= "last-webextension2@tests.mozilla.org";
+  let last_addon = yield promiseAddonByID(manifestjson_id);
+  do_check_eq(last_addon, null);
+
+  yield promiseRestartManager();
+});
+
+// Test that the "options_ui" manifest section is processed correctly.
+add_task(function* test_options_ui() {
+  let OPTIONS_RE = /^moz-extension:\/\/[\da-f]{8}-[\da-f]{4}-[\da-f]{4}-[\da-f]{4}-[\da-f]{12}\/options\.html$/;
+
+  const extensionId = "webextension@tests.mozilla.org";
+  yield promiseInstallWebExtension({
+    manifest: {
+      applications: {gecko: {id: extensionId}},
+      "options_ui": {
+        "page": "options.html",
+      },
+    },
+  });
+
+  let addon = yield promiseAddonByID(extensionId);
+  equal(addon.optionsType, AddonManager.OPTIONS_TYPE_INLINE_BROWSER,
+        "Addon should have an INLINE_BROWSER options type");
+
+  ok(OPTIONS_RE.test(addon.optionsURL),
+     "Addon should have a moz-extension: options URL for /options.html");
+
+  addon.uninstall();
+
+  const ID2 = "webextension2@tests.mozilla.org";
+  yield promiseInstallWebExtension({
+    manifest: {
+      applications: {gecko: {id: ID2}},
+      "options_ui": {
+        "page": "options.html",
+        "open_in_tab": true,
+      },
+    },
+  });
+
+  addon = yield promiseAddonByID(ID2);
+  equal(addon.optionsType, AddonManager.OPTIONS_TYPE_TAB,
+        "Addon should have a TAB options type");
+
+  ok(OPTIONS_RE.test(addon.optionsURL),
+     "Addon should have a moz-extension: options URL for /options.html");
+
+  addon.uninstall();
+});
+
+// Test that experiments permissions add the appropriate dependencies.
+add_task(function* test_experiments_dependencies() {
+  if (AppConstants.RELEASE_OR_BETA)
+    // Experiments are not enabled on release builds.
+    return;
+
+  let addonFile = createTempWebExtensionFile({
+    manifest: {
+      applications: {gecko: {id: "meh@experiment"}},
+      "permissions": ["experiments.meh"],
+    },
+  });
+
+  yield promiseInstallAllFiles([addonFile]);
+
+  let addon = yield new Promise(resolve => AddonManager.getAddonByID("meh@experiment", resolve));
+
+  deepEqual(addon.dependencies, ["meh@experiments.addons.mozilla.org"],
+            "Addon should have the expected dependencies");
+
+  equal(addon.appDisabled, true, "Add-on should be app disabled due to missing dependencies");
+
+  addon.uninstall();
+});
+
+// Test that experiments API extensions install correctly.
+add_task(function* test_experiments_api() {
+  if (AppConstants.RELEASE_OR_BETA)
+    // Experiments are not enabled on release builds.
+    return;
+
+  const extensionId = "meh@experiments.addons.mozilla.org";
+
+  let addonFile = createTempXPIFile({
+    id: extensionId,
+    type: 256,
+    version: "0.1",
+    name: "Meh API",
+  });
+
+  yield promiseInstallAllFiles([addonFile]);
+
+  let addons = yield new Promise(resolve => AddonManager.getAddonsByTypes(["apiextension"], resolve));
+  let addon = addons.pop();
+  equal(addon.id, extensionId, "Add-on should be installed as an API extension");
+
+  addons = yield new Promise(resolve => AddonManager.getAddonsByTypes(["extension"], resolve));
+  equal(addons.pop().id, extensionId, "Add-on type should be aliased to extension");
+
+  addon.uninstall();
+});
+
+add_task(function* developerShouldOverride() {
+  let addon = yield promiseInstallWebExtension({
+    manifest: {
+      default_locale: "en",
+      developer: {
+        name: "__MSG_name__",
+        url: "__MSG_url__"
+      },
+      author: "Will be overridden by developer",
+      homepage_url: "https://will.be.overridden",
+    },
+    files: {
+      "_locales/en/messages.json": `{
+        "name": {
+          "message": "en name"
+        },
+        "url": {
+          "message": "https://example.net/en"
+        }
+      }`
+    }
+  });
+
+  addon = yield promiseAddonByID(addon.id);
+  equal(addon.creator, "en name");
+  equal(addon.homepageURL, "https://example.net/en");
+  addon.uninstall();
+});
+
+add_task(function* developerEmpty() {
+  for (let developer of [{}, null, {name: null, url: null}]) {
+    let addon = yield promiseInstallWebExtension({
+      manifest: {
+        author: "Some author",
+        developer: developer,
+        homepage_url: "https://example.net",
+        manifest_version: 2,
+        name: "Web Extension Name",
+        version: "1.0",
+      }
+    });
+
+    addon = yield promiseAddonByID(addon.id);
+    equal(addon.creator, "Some author");
+    equal(addon.homepageURL, "https://example.net");
+    addon.uninstall();
+  }
+});
+
+add_task(function* authorNotString() {
+  for (let author of [{}, [], 42]) {
+    let addon = yield promiseInstallWebExtension({
+      manifest: {
+        author: author,
+        manifest_version: 2,
+        name: "Web Extension Name",
+        version: "1.0",
+      }
+    });
+
+    addon = yield promiseAddonByID(addon.id);
+    equal(addon.creator, null);
+    addon.uninstall();
+  }
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_embedded.js b/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_embedded.js
new file mode 100644
index 000000000..3bd8a2bd8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_embedded.js
@@ -0,0 +1,306 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+BootstrapMonitor.init();
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "49");
+startupManager();
+
+// NOTE: the following import needs to be called after the `createAppInfo`
+// or it will fail Extension.jsm internally imports AddonManager.jsm and
+// AddonManager will raise a ReferenceError exception because it tried to
+// access an undefined `Services.appinfo` object.
+const { Management } = Components.utils.import("resource://gre/modules/Extension.jsm", {});
+
+const {
+  EmbeddedExtensionManager,
+  LegacyExtensionsUtils,
+} = Components.utils.import("resource://gre/modules/LegacyExtensionsUtils.jsm");
+
+// Wait the startup of the embedded webextension.
+function promiseWebExtensionStartup() {
+  return new Promise(resolve => {
+    let listener = (event, extension) => {
+      Management.off("startup", listener);
+      resolve(extension);
+    };
+
+    Management.on("startup", listener);
+  });
+}
+
+function promiseWebExtensionShutdown() {
+  return new Promise(resolve => {
+    let listener = (event, extension) => {
+      Management.off("shutdown", listener);
+      resolve(extension);
+    };
+
+    Management.on("shutdown", listener);
+  });
+}
+
+const BOOTSTRAP = String.raw`
+  Components.utils.import("resource://xpcshell-data/BootstrapMonitor.jsm").monitor(this);
+`;
+
+const EMBEDDED_WEBEXT_MANIFEST = JSON.stringify({
+  name: "embedded webextension addon",
+  manifest_version: 2,
+  version: "1.0",
+});
+
+/**
+ *  This test case checks that an hasEmbeddedWebExtension addon property
+ *  is persisted and restored correctly across restarts.
+ */
+add_task(function* has_embedded_webextension_persisted() {
+  const ID = "embedded-webextension-addon-persist@tests.mozilla.org";
+
+  const xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on",
+    version: "1.0",
+    bootstrap: true,
+    hasEmbeddedWebExtension: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1.9.2"
+    }]
+  }, {
+    "bootstrap.js": BOOTSTRAP,
+    "webextension/manifest.json": EMBEDDED_WEBEXT_MANIFEST,
+  });
+
+  yield promiseInstallFile(xpiFile);
+
+  let addon = yield promiseAddonByID(ID);
+
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "1.0", "Got the expected version");
+  equal(addon.hasEmbeddedWebExtension, true,
+        "Got the expected hasEmbeddedWebExtension value");
+
+  // Check that the addon has been installed and started.
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  let startupInfo = BootstrapMonitor.started.get(ID);
+  ok(("webExtension" in startupInfo.data),
+     "Got an webExtension property in the startup bootstrap method params");
+  ok(("startup" in startupInfo.data.webExtension),
+     "Got the expected 'startup' property in the webExtension object");
+
+  // After restarting the manager, the add-on should still have the
+  // hasEmbeddedWebExtension property as expected.
+  yield promiseRestartManager();
+
+  let persisted = JSON.parse(Services.prefs.getCharPref("extensions.bootstrappedAddons"));
+  ok(ID in persisted, "Hybrid add-on persisted to bootstrappedAddons.");
+  equal(persisted[ID].hasEmbeddedWebExtension, true,
+        "hasEmbeddedWebExtension flag persisted to bootstrappedAddons.");
+
+  // Check that the addon has been installed and started.
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  addon = yield promiseAddonByID(ID);
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.hasEmbeddedWebExtension, true, "Got the expected hasEmbeddedWebExtension value");
+
+  // Check that the addon has been installed and started.
+  let newStartupInfo = BootstrapMonitor.started.get(ID);
+  ok(("webExtension" in newStartupInfo.data),
+     "Got an webExtension property in the startup bootstrap method params");
+  ok(("startup" in newStartupInfo.data.webExtension),
+     "Got the expected 'startup' property in the webExtension object");
+
+  let waitUninstall = promiseAddonEvent("onUninstalled");
+  addon.uninstall();
+  yield waitUninstall;
+});
+
+/**
+ *  This test case checks that an addon with hasEmbeddedWebExtension set to true
+ *  in its install.rdf gets the expected `embeddedWebExtension` object in the
+ *  parameters of its bootstrap methods.
+ */
+add_task(function* run_embedded_webext_bootstrap() {
+  const ID = "embedded-webextension-addon2@tests.mozilla.org";
+
+  const xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on",
+    version: "1.0",
+    bootstrap: true,
+    hasEmbeddedWebExtension: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1.9.2"
+    }]
+  }, {
+    "bootstrap.js": BOOTSTRAP,
+    "webextension/manifest.json": EMBEDDED_WEBEXT_MANIFEST,
+  });
+
+  yield AddonManager.installTemporaryAddon(xpiFile);
+
+  let addon = yield promiseAddonByID(ID);
+
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "1.0", "Got the expected version");
+  equal(addon.hasEmbeddedWebExtension, true,
+        "Got the expected hasEmbeddedWebExtension value");
+
+  // Check that the addon has been installed and started.
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+
+  let installInfo = BootstrapMonitor.installed.get(ID);
+  ok(!("webExtension" in installInfo.data),
+     "No webExtension property is expected in the install bootstrap method params");
+
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  let startupInfo = BootstrapMonitor.started.get(ID);
+
+  ok(("webExtension" in startupInfo.data),
+     "Got an webExtension property in the startup bootstrap method params");
+
+  ok(("startup" in startupInfo.data.webExtension),
+     "Got the expected 'startup' property in the webExtension object");
+
+  const waitForWebExtensionStartup = promiseWebExtensionStartup();
+
+  const embeddedAPI = yield startupInfo.data.webExtension.startup();
+
+  // WebExtension startup should have been fully resolved.
+  yield waitForWebExtensionStartup;
+
+  Assert.deepEqual(
+    Object.keys(embeddedAPI.browser.runtime).sort(),
+    ["onConnect", "onMessage"],
+    `Got the expected 'runtime' in the 'browser' API object`
+  );
+
+  // Uninstall the addon and wait that the embedded webextension has been stopped and
+  // test the params of the shutdown and uninstall bootstrap method.
+  let waitForWebExtensionShutdown = promiseWebExtensionShutdown();
+  let waitUninstall = promiseAddonEvent("onUninstalled");
+  addon.uninstall();
+  yield waitForWebExtensionShutdown;
+  yield waitUninstall;
+
+  BootstrapMonitor.checkAddonNotStarted(ID, "1.0");
+
+  let shutdownInfo = BootstrapMonitor.stopped.get(ID);
+  ok(!("webExtension" in shutdownInfo.data),
+     "No webExtension property is expected in the shutdown bootstrap method params");
+
+  let uninstallInfo = BootstrapMonitor.uninstalled.get(ID);
+  ok(!("webExtension" in uninstallInfo.data),
+     "No webExtension property is expected in the uninstall bootstrap method params");
+});
+
+/**
+ *  This test case checks that an addon with hasEmbeddedWebExtension can be reloaded
+ *  without raising unexpected exceptions due to race conditions.
+ */
+add_task(function* reload_embedded_webext_bootstrap() {
+  const ID = "embedded-webextension-addon2@tests.mozilla.org";
+
+  // No embedded webextension should be currently around.
+  equal(EmbeddedExtensionManager.embeddedExtensionsByAddonId.size, 0,
+        "No embedded extension instance should be tracked here");
+
+  const xpiFile = createTempXPIFile({
+    id: ID,
+    name: "Test Add-on",
+    version: "1.0",
+    bootstrap: true,
+    hasEmbeddedWebExtension: true,
+    targetApplications: [{
+      id: "xpcshell@tests.mozilla.org",
+      minVersion: "1",
+      maxVersion: "1.9.2"
+    }]
+  }, {
+    "bootstrap.js": BOOTSTRAP,
+    "webextension/manifest.json": EMBEDDED_WEBEXT_MANIFEST,
+  });
+
+  yield AddonManager.installTemporaryAddon(xpiFile);
+
+  let addon = yield promiseAddonByID(ID);
+
+  notEqual(addon, null, "Got an addon object as expected");
+  equal(addon.version, "1.0", "Got the expected version");
+  equal(addon.isActive, true, "The Addon is active");
+  equal(addon.appDisabled, false, "The addon is not app disabled");
+  equal(addon.userDisabled, false, "The addon is not user disabled");
+
+  // Check that the addon has been installed and started.
+  BootstrapMonitor.checkAddonInstalled(ID, "1.0");
+  BootstrapMonitor.checkAddonStarted(ID, "1.0");
+
+  // Only one embedded extension.
+  equal(EmbeddedExtensionManager.embeddedExtensionsByAddonId.size, 1,
+        "Got the expected number of tracked extension instances");
+
+  const embeddedWebExtension = EmbeddedExtensionManager.embeddedExtensionsByAddonId.get(ID);
+
+  let startupInfo = BootstrapMonitor.started.get(ID);
+  yield startupInfo.data.webExtension.startup();
+
+  const waitForAddonDisabled = promiseAddonEvent("onDisabled");
+  addon.userDisabled = true;
+  yield waitForAddonDisabled;
+
+  // No embedded webextension should be currently around.
+  equal(EmbeddedExtensionManager.embeddedExtensionsByAddonId.size, 0,
+        "No embedded extension instance should be tracked here");
+
+  const waitForAddonEnabled = promiseAddonEvent("onEnabled");
+  addon.userDisabled = false;
+  yield waitForAddonEnabled;
+
+  // Only one embedded extension.
+  equal(EmbeddedExtensionManager.embeddedExtensionsByAddonId.size, 1,
+        "Got the expected number of tracked extension instances");
+
+  const embeddedWebExtensionAfterEnabled = EmbeddedExtensionManager.embeddedExtensionsByAddonId.get(ID);
+  notEqual(embeddedWebExtensionAfterEnabled, embeddedWebExtension,
+           "Got a new EmbeddedExtension instance after the addon has been disabled and then enabled");
+
+  startupInfo = BootstrapMonitor.started.get(ID);
+  yield startupInfo.data.webExtension.startup();
+
+  const waitForReinstalled = promiseAddonEvent("onInstalled");
+  addon.reload();
+  yield waitForReinstalled;
+
+  // No leaked embedded extension after the previous reloads.
+  equal(EmbeddedExtensionManager.embeddedExtensionsByAddonId.size, 1,
+        "Got the expected number of tracked extension instances");
+
+  const embeddedWebExtensionAfterReload = EmbeddedExtensionManager.embeddedExtensionsByAddonId.get(ID);
+  notEqual(embeddedWebExtensionAfterReload, embeddedWebExtensionAfterEnabled,
+           "Got a new EmbeddedExtension instance after the addon has been reloaded");
+
+  startupInfo = BootstrapMonitor.started.get(ID);
+  yield startupInfo.data.webExtension.startup();
+
+  // Uninstall the test addon
+  let waitUninstalled = promiseAddonEvent("onUninstalled");
+  addon.uninstall();
+  yield waitUninstalled;
+
+  // No leaked embedded extension after uninstalling.
+  equal(EmbeddedExtensionManager.embeddedExtensionsByAddonId.size, 0,
+        "No embedded extension instance should be tracked after the addon uninstall");
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_icons.js b/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_icons.js
new file mode 100644
index 000000000..25fb4115f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_icons.js
@@ -0,0 +1,169 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const ID = "webextension1@tests.mozilla.org";
+
+const profileDir = gProfD.clone();
+profileDir.append("extensions");
+profileDir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+
+createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "42");
+startupManager();
+
+const { Management } = Components.utils.import("resource://gre/modules/Extension.jsm", {});
+
+function promiseAddonStartup() {
+  return new Promise(resolve => {
+    let listener = (evt, extension) => {
+      Management.off("startup", listener);
+      resolve(extension);
+    };
+
+    Management.on("startup", listener);
+  });
+}
+
+// Test simple icon set parsing
+add_task(function*() {
+  yield promiseWriteWebManifestForExtension({
+    name: "Web Extension Name",
+    version: "1.0",
+    manifest_version: 2,
+    applications: {
+      gecko: {
+        id: ID
+      }
+    },
+    icons: {
+      16: "icon16.png",
+      32: "icon32.png",
+      48: "icon48.png",
+      64: "icon64.png"
+    }
+  }, profileDir);
+
+  yield promiseRestartManager();
+  yield promiseAddonStartup();
+
+  let uri = do_get_addon_root_uri(profileDir, ID);
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  function check_icons(addon_copy) {
+    deepEqual(addon_copy.icons, {
+        16: uri + "icon16.png",
+        32: uri + "icon32.png",
+        48: uri + "icon48.png",
+        64: uri + "icon64.png"
+    });
+
+    // iconURL should map to icons[48] and icons[64]
+    equal(addon.iconURL, uri + "icon48.png");
+    equal(addon.icon64URL, uri + "icon64.png");
+
+    // AddonManager gets the correct icon sizes from addon.icons
+    equal(AddonManager.getPreferredIconURL(addon, 1), uri + "icon16.png");
+    equal(AddonManager.getPreferredIconURL(addon, 16), uri + "icon16.png");
+    equal(AddonManager.getPreferredIconURL(addon, 30), uri + "icon32.png");
+    equal(AddonManager.getPreferredIconURL(addon, 48), uri + "icon48.png");
+    equal(AddonManager.getPreferredIconURL(addon, 64), uri + "icon64.png");
+    equal(AddonManager.getPreferredIconURL(addon, 128), uri + "icon64.png");
+  }
+
+  check_icons(addon);
+
+  // check if icons are persisted through a restart
+  yield promiseRestartManager();
+  yield promiseAddonStartup();
+
+  addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  check_icons(addon);
+
+  addon.uninstall();
+
+  yield promiseRestartManager();
+});
+
+// Test AddonManager.getPreferredIconURL for retina screen sizes
+add_task(function*() {
+  yield promiseWriteWebManifestForExtension({
+    name: "Web Extension Name",
+    version: "1.0",
+    manifest_version: 2,
+    applications: {
+      gecko: {
+        id: ID
+      }
+    },
+    icons: {
+      32: "icon32.png",
+      48: "icon48.png",
+      64: "icon64.png",
+      128: "icon128.png",
+      256: "icon256.png"
+    }
+  }, profileDir);
+
+  yield promiseRestartManager();
+  yield promiseAddonStartup();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  let uri = do_get_addon_root_uri(profileDir, ID);
+
+  // AddonManager displays larger icons for higher pixel density
+  equal(AddonManager.getPreferredIconURL(addon, 32, {
+    devicePixelRatio: 2
+  }), uri + "icon64.png");
+
+  equal(AddonManager.getPreferredIconURL(addon, 48, {
+    devicePixelRatio: 2
+  }), uri + "icon128.png");
+
+  equal(AddonManager.getPreferredIconURL(addon, 64, {
+    devicePixelRatio: 2
+  }), uri + "icon128.png");
+
+  addon.uninstall();
+
+  yield promiseRestartManager();
+});
+
+// Handles no icons gracefully
+add_task(function*() {
+  yield promiseWriteWebManifestForExtension({
+    name: "Web Extension Name",
+    version: "1.0",
+    manifest_version: 2,
+    applications: {
+      gecko: {
+        id: ID
+      }
+    }
+  }, profileDir);
+
+  yield promiseRestartManager();
+  yield promiseAddonStartup();
+
+  let addon = yield promiseAddonByID(ID);
+  do_check_neq(addon, null);
+
+  let uri = do_get_addon_root_uri(profileDir, ID);
+
+  deepEqual(addon.icons, {});
+
+  equal(addon.iconURL, null);
+  equal(addon.icon64URL, null);
+
+  equal(AddonManager.getPreferredIconURL(addon, 128), null);
+
+  addon.uninstall();
+
+  yield promiseRestartManager();
+});
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_install.js b/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_install.js
new file mode 100644
index 000000000..1e7c9d9b7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_install.js
@@ -0,0 +1,478 @@
+
+const {ADDON_SIGNING} = AM_Cu.import("resource://gre/modules/addons/AddonConstants.jsm", {});
+
+function run_test() {
+  run_next_test();
+}
+
+let profileDir;
+add_task(function* setup() {
+  profileDir = gProfD.clone();
+  profileDir.append("extensions");
+
+  if (!profileDir.exists())
+    profileDir.create(AM_Ci.nsIFile.DIRECTORY_TYPE, FileUtils.PERMS_DIRECTORY);
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+});
+
+const IMPLICIT_ID_XPI = "data/webext-implicit-id.xpi";
+const IMPLICIT_ID_ID = "webext_implicit_id@tests.mozilla.org";
+
+// webext-implicit-id.xpi has a minimal manifest with no
+// applications or browser_specific_settings, so its id comes
+// from its signature, which should be the ID constant defined below.
+add_task(function* test_implicit_id() {
+  // This test needs to read the xpi certificate which only works
+  // if signing is enabled.
+  ok(ADDON_SIGNING, "Add-on signing is enabled");
+
+  let addon = yield promiseAddonByID(IMPLICIT_ID_ID);
+  equal(addon, null, "Add-on is not installed");
+
+  let xpifile = do_get_file(IMPLICIT_ID_XPI);
+  yield promiseInstallAllFiles([xpifile]);
+
+  addon = yield promiseAddonByID(IMPLICIT_ID_ID);
+  notEqual(addon, null, "Add-on is installed");
+
+  addon.uninstall();
+});
+
+// We should also be able to install webext-implicit-id.xpi temporarily
+// and it should look just like the regular install (ie, the ID should
+// come from the signature)
+add_task(function* test_implicit_id_temp() {
+  // This test needs to read the xpi certificate which only works
+  // if signing is enabled.
+  ok(ADDON_SIGNING, "Add-on signing is enabled");
+
+  let addon = yield promiseAddonByID(IMPLICIT_ID_ID);
+  equal(addon, null, "Add-on is not installed");
+
+  let xpifile = do_get_file(IMPLICIT_ID_XPI);
+  yield AddonManager.installTemporaryAddon(xpifile);
+
+  addon = yield promiseAddonByID(IMPLICIT_ID_ID);
+  notEqual(addon, null, "Add-on is installed");
+
+  // The sourceURI of a temporary installed addon should be equal to the
+  // file url of the installed xpi file.
+  equal(addon.sourceURI && addon.sourceURI.spec,
+        Services.io.newFileURI(xpifile).spec,
+        "SourceURI of the add-on has the expected value");
+
+  addon.uninstall();
+});
+
+// We should be able to temporarily install an unsigned web extension
+// that does not have an ID in its manifest.
+add_task(function* test_unsigned_no_id_temp_install() {
+  AddonTestUtils.useRealCertChecks = true;
+  const manifest = {
+    name: "no ID",
+    description: "extension without an ID",
+    manifest_version: 2,
+    version: "1.0"
+  };
+
+  const addonDir = yield promiseWriteWebManifestForExtension(manifest, gTmpD,
+                                                "the-addon-sub-dir");
+  const addon = yield AddonManager.installTemporaryAddon(addonDir);
+  ok(addon.id, "ID should have been auto-generated");
+
+  // The sourceURI of a temporary installed addon should be equal to the
+  // file url of the installed source dir.
+  equal(addon.sourceURI && addon.sourceURI.spec,
+        Services.io.newFileURI(addonDir).spec,
+        "SourceURI of the add-on has the expected value");
+
+  // Install the same directory again, as if re-installing or reloading.
+  const secondAddon = yield AddonManager.installTemporaryAddon(addonDir);
+  // The IDs should be the same.
+  equal(secondAddon.id, addon.id, "Reinstalled add-on has the expected ID");
+
+  secondAddon.uninstall();
+  Services.obs.notifyObservers(addonDir, "flush-cache-entry", null);
+  addonDir.remove(true);
+  AddonTestUtils.useRealCertChecks = false;
+});
+
+// We should be able to install two extensions from manifests without IDs
+// at different locations and get two unique extensions.
+add_task(function* test_multiple_no_id_extensions() {
+  AddonTestUtils.useRealCertChecks = true;
+  const manifest = {
+    name: "no ID",
+    description: "extension without an ID",
+    manifest_version: 2,
+    version: "1.0"
+  };
+
+  let extension1 = ExtensionTestUtils.loadExtension({
+    manifest: manifest,
+    useAddonManager: "temporary",
+  });
+
+  let extension2 = ExtensionTestUtils.loadExtension({
+    manifest: manifest,
+    useAddonManager: "temporary",
+  });
+
+  yield Promise.all([extension1.startup(), extension2.startup()]);
+
+  const allAddons = yield new Promise(resolve => {
+    AddonManager.getAllAddons(addons => resolve(addons));
+  });
+  do_print(`Found these add-ons: ${allAddons.map(a => a.name).join(", ")}`);
+  const filtered = allAddons.filter(addon => addon.name === manifest.name);
+  // Make sure we have two add-ons by the same name.
+  equal(filtered.length, 2, "Two add-ons are installed with the same name");
+
+  yield extension1.unload();
+  yield extension2.unload();
+  AddonTestUtils.useRealCertChecks = false;
+});
+
+// Test that we can get the ID from browser_specific_settings
+add_task(function* test_bss_id() {
+  const ID = "webext_bss_id@tests.mozilla.org";
+
+  let manifest = {
+    name: "bss test",
+    description: "test that ID may be in browser_specific_settings",
+    manifest_version: 2,
+    version: "1.0",
+
+    browser_specific_settings: {
+      gecko: {
+        id: ID
+      }
+    }
+  };
+
+  let addon = yield promiseAddonByID(ID);
+  equal(addon, null, "Add-on is not installed");
+
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: manifest,
+    useAddonManager: "temporary",
+  });
+  yield extension.startup();
+
+  addon = yield promiseAddonByID(ID);
+  notEqual(addon, null, "Add-on is installed");
+
+  yield extension.unload();
+});
+
+// Test that if we have IDs in both browser_specific_settings and applications,
+// that we prefer the ID in browser_specific_settings.
+add_task(function* test_two_ids() {
+  const GOOD_ID = "two_ids@tests.mozilla.org";
+  const BAD_ID = "i_am_obsolete@tests.mozilla.org";
+
+  let manifest = {
+    name: "two id test",
+    description: "test a web extension with ids in both applications and browser_specific_settings",
+    manifest_version: 2,
+    version: "1.0",
+
+    applications: {
+      gecko: {
+        id: BAD_ID
+      }
+    },
+
+    browser_specific_settings: {
+      gecko: {
+        id: GOOD_ID
+      }
+    }
+  }
+
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: manifest,
+    useAddonManager: "temporary",
+  });
+  yield extension.startup();
+
+  let addon = yield promiseAddonByID(BAD_ID);
+  equal(addon, null, "Add-on is not found using bad ID");
+  addon = yield promiseAddonByID(GOOD_ID);
+  notEqual(addon, null, "Add-on is found using good ID");
+
+  yield extension.unload();
+});
+
+// Test that strict_min_version and strict_max_version are enforced for
+// loading temporary extension.
+add_task(function* test_strict_min_max() {
+  // the app version being compared to is 1.9.2
+  const addonId = "strict_min_max@tests.mozilla.org";
+  const MANIFEST = {
+    name: "strict min max test",
+    description: "test strict min and max with temporary loading",
+    manifest_version: 2,
+    version: "1.0",
+  };
+
+  // bad max good min
+  let apps = {
+    applications: {
+      gecko: {
+        id: addonId,
+        strict_min_version: "1",
+        strict_max_version: "1"
+      },
+    },
+  }
+  let testManifest = Object.assign(apps, MANIFEST);
+
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: testManifest,
+    useAddonManager: "temporary",
+  });
+
+  let expectedMsg = new RegExp("Add-on strict_min_max@tests.mozilla.org is not compatible with application version. " +
+                               "add-on minVersion: 1. add-on maxVersion: 1.");
+  yield Assert.rejects(extension.startup(),
+                       expectedMsg,
+                       "Install rejects when specified maxVersion is not valid");
+
+  let addon = yield promiseAddonByID(addonId);
+  equal(addon, null, "Add-on is not installed");
+
+  // bad min good max
+  apps = {
+    applications: {
+      gecko: {
+        id: addonId,
+        strict_min_version: "2",
+        strict_max_version: "2"
+      },
+    },
+  }
+  testManifest = Object.assign(apps, MANIFEST);
+
+  extension = ExtensionTestUtils.loadExtension({
+    manifest: testManifest,
+    useAddonManager: "temporary",
+  });
+
+  expectedMsg = new RegExp("Add-on strict_min_max@tests.mozilla.org is not compatible with application version. " +
+                           "add-on minVersion: 2. add-on maxVersion: 2.");
+  yield Assert.rejects(extension.startup(),
+                       expectedMsg,
+                       "Install rejects when specified minVersion is not valid");
+
+  addon = yield promiseAddonByID(addonId);
+  equal(addon, null, "Add-on is not installed");
+
+  // bad both
+  apps = {
+    applications: {
+      gecko: {
+        id: addonId,
+        strict_min_version: "2",
+        strict_max_version: "1"
+      },
+    },
+  }
+  testManifest = Object.assign(apps, MANIFEST);
+
+  extension = ExtensionTestUtils.loadExtension({
+    manifest: testManifest,
+    useAddonManager: "temporary",
+  });
+
+  expectedMsg = new RegExp("Add-on strict_min_max@tests.mozilla.org is not compatible with application version. " +
+                           "add-on minVersion: 2. add-on maxVersion: 1.");
+  yield Assert.rejects(extension.startup(),
+                       expectedMsg,
+                       "Install rejects when specified minVersion and maxVersion are not valid");
+
+  addon = yield promiseAddonByID(addonId);
+  equal(addon, null, "Add-on is not installed");
+
+  // bad only min
+  apps = {
+    applications: {
+      gecko: {
+        id: addonId,
+        strict_min_version: "2"
+      },
+    },
+  }
+  testManifest = Object.assign(apps, MANIFEST);
+
+  extension = ExtensionTestUtils.loadExtension({
+    manifest: testManifest,
+    useAddonManager: "temporary",
+  });
+
+  expectedMsg = new RegExp("Add-on strict_min_max@tests.mozilla.org is not compatible with application version\. " +
+                           "add-on minVersion: 2\.");
+  yield Assert.rejects(extension.startup(),
+                       expectedMsg,
+                       "Install rejects when specified minVersion and maxVersion are not valid");
+
+  addon = yield promiseAddonByID(addonId);
+  equal(addon, null, "Add-on is not installed");
+
+  // bad only max
+  apps = {
+    applications: {
+      gecko: {
+        id: addonId,
+        strict_max_version: "1"
+      },
+    },
+  }
+  testManifest = Object.assign(apps, MANIFEST);
+
+  extension = ExtensionTestUtils.loadExtension({
+    manifest: testManifest,
+    useAddonManager: "temporary",
+  });
+
+  expectedMsg = new RegExp("Add-on strict_min_max@tests.mozilla.org is not compatible with application version\. " +
+                           "add-on maxVersion: 1\.");
+  yield Assert.rejects(extension.startup(),
+                       expectedMsg,
+                       "Install rejects when specified minVersion and maxVersion are not valid");
+
+  addon = yield promiseAddonByID(addonId);
+  equal(addon, null, "Add-on is not installed");
+
+  // good both
+  apps = {
+    applications: {
+      gecko: {
+        id: addonId,
+        strict_min_version: "1",
+        strict_max_version: "2"
+      },
+    },
+  }
+  testManifest = Object.assign(apps, MANIFEST);
+
+  extension = ExtensionTestUtils.loadExtension({
+    manifest: testManifest,
+    useAddonManager: "temporary",
+  });
+
+  yield extension.startup();
+  addon = yield promiseAddonByID(addonId);
+
+  notEqual(addon, null, "Add-on is installed");
+  equal(addon.id, addonId, "Installed add-on has the expected ID");
+  yield extension.unload();
+
+  // good only min
+  let newId = "strict_min_only@tests.mozilla.org";
+  apps = {
+    applications: {
+      gecko: {
+        id: newId,
+        strict_min_version: "1",
+      },
+    },
+  }
+  testManifest = Object.assign(apps, MANIFEST);
+
+  extension = ExtensionTestUtils.loadExtension({
+    manifest: testManifest,
+    useAddonManager: "temporary",
+  });
+
+  yield extension.startup();
+  addon = yield promiseAddonByID(newId);
+
+  notEqual(addon, null, "Add-on is installed");
+  equal(addon.id, newId, "Installed add-on has the expected ID");
+
+  yield extension.unload();
+
+  // good only max
+  newId = "strict_max_only@tests.mozilla.org";
+  apps = {
+    applications: {
+      gecko: {
+        id: newId,
+        strict_max_version: "2",
+      },
+    },
+  }
+  testManifest = Object.assign(apps, MANIFEST);
+
+  extension = ExtensionTestUtils.loadExtension({
+    manifest: testManifest,
+    useAddonManager: "temporary",
+  });
+
+  yield extension.startup();
+  addon = yield promiseAddonByID(newId);
+
+  notEqual(addon, null, "Add-on is installed");
+  equal(addon.id, newId, "Installed add-on has the expected ID");
+
+  yield extension.unload();
+
+  // * in min will throw an error
+  for (let version of ["0.*", "0.*.0"]) {
+    newId = "strict_min_star@tests.mozilla.org";
+    let minStarApps = {
+      applications: {
+        gecko: {
+          id: newId,
+          strict_min_version: version,
+        },
+      },
+    }
+
+    let minStarTestManifest = Object.assign(minStarApps, MANIFEST);
+
+    let minStarExtension = ExtensionTestUtils.loadExtension({
+      manifest: minStarTestManifest,
+      useAddonManager: "temporary",
+    });
+
+    yield Assert.rejects(
+      minStarExtension.startup(),
+      /The use of '\*' in strict_min_version is invalid/,
+      "loading an extension with a * in strict_min_version throws an exception");
+
+    let minStarAddon = yield promiseAddonByID(newId);
+    equal(minStarAddon, null, "Add-on is not installed");
+  }
+
+  // incompatible extension but with compatibility checking off
+  newId = "checkCompatibility@tests.mozilla.org";
+  apps = {
+    applications: {
+      gecko: {
+        id: newId,
+        strict_max_version: "1",
+      },
+    },
+  }
+  testManifest = Object.assign(apps, MANIFEST);
+
+  extension = ExtensionTestUtils.loadExtension({
+    manifest: testManifest,
+    useAddonManager: "temporary",
+  });
+
+  let savedCheckCompatibilityValue = AddonManager.checkCompatibility;
+  AddonManager.checkCompatibility = false;
+  yield extension.startup();
+  addon = yield promiseAddonByID(newId);
+
+  notEqual(addon, null, "Add-on is installed");
+  equal(addon.id, newId, "Installed add-on has the expected ID");
+
+  yield extension.unload();
+  AddonManager.checkCompatibility = savedCheckCompatibilityValue;
+});
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_paths.js b/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_paths.js
new file mode 100644
index 000000000..29a3dacf7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_webextension_paths.js
@@ -0,0 +1,55 @@
+function run_test() {
+  run_next_test();
+}
+
+let profileDir;
+add_task(function* setup() {
+  profileDir = gProfD.clone();
+  profileDir.append("extensions");
+
+  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+  startupManager();
+});
+
+// When installing an unpacked addon we derive the ID from the
+// directory name.  Make sure that if the directoy name is not a valid
+// addon ID that we reject it.
+add_task(function* test_bad_unpacked_path() {
+  let MANIFEST_ID = "webext_bad_path@tests.mozilla.org";
+
+  let manifest = {
+    name: "path test",
+    description: "test of a bad directory name",
+    manifest_version: 2,
+    version: "1.0",
+
+    browser_specific_settings: {
+      gecko: {
+        id: MANIFEST_ID
+      }
+    }
+  };
+
+  const directories = [
+    "not a valid ID",
+    '"quotes"@tests.mozilla.org',
+  ];
+
+  for (let dir of directories) {
+    try {
+      yield promiseWriteWebManifestForExtension(manifest, profileDir, dir);
+    } catch (ex) {
+      // This can fail if the underlying filesystem (looking at you windows)
+      // doesn't handle some of the characters in the ID.  In that case,
+      // just ignore this test on this platform.
+      continue;
+    }
+    yield promiseRestartManager();
+
+    let addon = yield promiseAddonByID(dir);
+    do_check_eq(addon, null);
+    addon = yield promiseAddonByID(MANIFEST_ID);
+    do_check_eq(addon, null);
+  }
+});
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/xpcshell-shared.ini b/toolkit/mozapps/webextensions/test/xpcshell/xpcshell-shared.ini
new file mode 100644
index 000000000..1e86e5861
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/xpcshell-shared.ini
@@ -0,0 +1,334 @@
+# The file is shared between the two main xpcshell manifest files.
+[DEFAULT]
+skip-if = toolkit == 'android'
+tags = addons
+
+[test_AddonRepository.js]
+[test_reload.js]
+# Bug 676992: test consistently hangs on Android
+# There's a problem removing a temp file without manually clearing the cache on Windows
+skip-if = os == "android" || os == "win"
+tags = webextensions
+[test_AddonRepository_cache.js]
+# Bug 676992: test consistently hangs on Android
+# Bug 1026805: frequent hangs on OSX 10.8
+skip-if = os == "android" || os == "mac"
+run-sequentially = Uses hardcoded ports in xpi files.
+[test_AddonRepository_compatmode.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_LightweightThemeManager.js]
+[test_backgroundupdate.js]
+[test_bad_json.js]
+[test_badschema.js]
+[test_blocklistchange.js]
+# Times out during parallel runs on desktop
+requesttimeoutfactor = 2
+[test_blocklist_prefs.js]
+[test_blocklist_metadata_filters.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_blocklist_regexp.js]
+skip-if = os == "android"
+[test_bootstrap.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bootstrap_const.js]
+[test_bootstrap_resource.js]
+[test_bug299716.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+run-sequentially = Uses hardcoded ports in xpi files.
+[test_bug299716_2.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+run-sequentially = Hardcoded port in install.rdf.
+[test_bug324121.js]
+# Bug 676992: test consistently hangs on Android
+# Bug 1026805: frequent hangs on OSX 10.8
+skip-if = os == "android" || os == "mac"
+run-sequentially = Uses hardcoded ports in xpi files.
+[test_bug335238.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+run-sequentially = Uses hardcoded ports in xpi files.
+[test_bug371495.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug384052.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug393285.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug394300.js]
+# Bug 676992: test consistently hangs on Android
+# Bug 1026805: frequent hangs on OSX 10.8
+skip-if = os == "android" || os == "mac"
+run-sequentially = Uses hardcoded ports in xpi files.
+[test_bug397778.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug406118.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug424262.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug425657.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug430120.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug449027.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug455906.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug465190.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug468528.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug470377_1.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug470377_1_strictcompat.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug470377_2.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug470377_3.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug470377_3_strictcompat.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug470377_4.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug514327_1.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug514327_2.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug514327_3.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_bug521905.js]
+[test_bug526598.js]
+[test_bug541420.js]
+[test_bug542391.js]
+run-sequentially = Uses hardcoded ports in xpi files.
+[test_bug554133.js]
+[test_bug559800.js]
+[test_bug563256.js]
+# Bug 676992: test consistently fails on Android
+fail-if = os == "android"
+[test_bug564030.js]
+[test_bug566626.js]
+[test_bug567184.js]
+[test_bug569138.js]
+[test_bug570173.js]
+[test_bug576735.js]
+[test_bug587088.js]
+[test_bug594058.js]
+[test_bug595081.js]
+[test_bug595573.js]
+[test_bug596607.js]
+[test_bug616841.js]
+# Bug 676992: test consistently fails on Android
+fail-if = os == "android"
+[test_bug619730.js]
+[test_bug620837.js]
+[test_bug655254.js]
+[test_bug659772.js]
+[test_bug675371.js]
+[test_bug740612.js]
+[test_bug753900.js]
+[test_bug757663.js]
+[test_bug953156.js]
+[test_checkcompatibility.js]
+[test_checkCompatibility_themeOverride.js]
+[test_childprocess.js]
+[test_ChromeManifestParser.js]
+[test_compatoverrides.js]
+[test_corrupt.js]
+[test_corrupt_strictcompat.js]
+[test_corruptfile.js]
+[test_dataDirectory.js]
+[test_default_providers_pref.js]
+[test_dictionary.js]
+[test_langpack.js]
+[test_disable.js]
+[test_distribution.js]
+[test_dss.js]
+# Bug 676992: test consistently fails on Android
+fail-if = os == "android"
+[test_duplicateplugins.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_error.js]
+[test_experiment.js]
+[test_filepointer.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_fuel.js]
+[test_general.js]
+[test_getresource.js]
+[test_gfxBlacklist_Device.js]
+[test_gfxBlacklist_DriverNew.js]
+[test_gfxBlacklist_Equal_DriverNew.js]
+[test_gfxBlacklist_Equal_DriverOld.js]
+[test_gfxBlacklist_Equal_OK.js]
+[test_gfxBlacklist_GTE_DriverOld.js]
+[test_gfxBlacklist_GTE_OK.js]
+[test_gfxBlacklist_No_Comparison.js]
+[test_gfxBlacklist_OK.js]
+[test_gfxBlacklist_OS.js]
+[test_gfxBlacklist_OSVersion_match.js]
+[test_gfxBlacklist_OSVersion_mismatch_OSVersion.js]
+[test_gfxBlacklist_OSVersion_mismatch_DriverVersion.js]
+[test_gfxBlacklist_Vendor.js]
+[test_gfxBlacklist_Version.js]
+[test_gfxBlacklist_prefs.js]
+# Bug 1248787 - consistently fails
+skip-if = true
+[test_hasbinarycomponents.js]
+[test_hotfix.js]
+[test_install.js]
+[test_install_icons.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_install_strictcompat.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+run-sequentially = Uses hardcoded ports in xpi files.
+[test_isDebuggable.js]
+[test_locale.js]
+[test_locked.js]
+[test_locked2.js]
+[test_locked_strictcompat.js]
+[test_manifest.js]
+[test_mapURIToAddonID.js]
+# Same as test_bootstrap.js
+skip-if = os == "android"
+[test_migrate1.js]
+[test_migrate2.js]
+[test_migrate3.js]
+[test_migrate4.js]
+# Times out during parallel runs on desktop
+requesttimeoutfactor = 2
+[test_migrate5.js]
+[test_migrateAddonRepository.js]
+[test_migrate_max_version.js]
+[test_multiprocessCompatible.js]
+[test_no_addons.js]
+[test_onPropertyChanged_appDisabled.js]
+[test_permissions.js]
+[test_permissions_prefs.js]
+[test_plugins.js]
+[test_pluginchange.js]
+# PluginProvider.jsm is not shipped on Android
+skip-if = os == "android"
+[test_pluginBlocklistCtp.js]
+# Bug 676992: test consistently fails on Android
+fail-if = os == "android"
+[test_pref_properties.js]
+[test_registry.js]
+[test_safemode.js]
+[test_signed_updatepref.js]
+run-if = addon_signing
+skip-if = require_signing
+[test_signed_verify.js]
+run-if = addon_signing
+[test_signed_inject.js]
+run-if = addon_signing
+[test_signed_install.js]
+run-if = addon_signing
+run-sequentially = Uses hardcoded ports in xpi files.
+[test_signed_long.js]
+run-if = addon_signing
+[test_signed_migrate.js]
+run-if = addon_signing
+[test_signed_multi.js]
+run-if = addon_signing
+[test_startup.js]
+# Bug 676992: test consistently fails on Android
+fail-if = os == "android"
+[test_syncGUID.js]
+[test_strictcompatibility.js]
+[test_targetPlatforms.js]
+[test_theme.js]
+# Bug 676992: test consistently fails on Android
+fail-if = os == "android"
+[test_types.js]
+[test_undothemeuninstall.js]
+[test_undouninstall.js]
+[test_uninstall.js]
+[test_update.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_update_webextensions.js]
+tags = webextensions
+[test_updateCancel.js]
+[test_update_strictcompat.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_update_ignorecompat.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+[test_updatecheck.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+run-sequentially = Uses hardcoded ports in xpi files.
+[test_json_updatecheck.js]
+[test_seen.js]
+[test_seen_newprofile.js]
+[test_updateid.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+run-sequentially = Uses hardcoded ports in xpi files.
+[test_update_compatmode.js]
+[test_upgrade.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+run-sequentially = Uses global XCurProcD dir.
+[test_upgrade_strictcompat.js]
+# Bug 676992: test consistently hangs on Android
+skip-if = os == "android"
+run-sequentially = Uses global XCurProcD dir.
+[test_overrideblocklist.js]
+run-sequentially = Uses global XCurProcD dir.
+[test_sourceURI.js]
+[test_webextension_icons.js]
+skip-if = appname == "thunderbird"
+tags = webextensions
+[test_webextension.js]
+skip-if = appname == "thunderbird"
+tags = webextensions
+[test_webextension_install.js]
+skip-if = appname == "thunderbird"
+tags = webextensions
+[test_webextension_embedded.js]
+skip-if = appname == "thunderbird"
+tags = webextensions
+[test_bootstrap_globals.js]
+[test_bug1180901_2.js]
+skip-if = os != "win"
+[test_bug1180901.js]
+skip-if = os != "win"
+[test_e10s_restartless.js]
+[test_switch_os.js]
+# Bug 1246231
+skip-if = os == "mac" && debug
+[test_softblocked.js]
+[test_ext_management.js]
+skip-if = appname == "thunderbird"
+tags = webextensions
+
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/xpcshell-unpack.ini b/toolkit/mozapps/webextensions/test/xpcshell/xpcshell-unpack.ini
new file mode 100644
index 000000000..42a0ca1ca
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/xpcshell-unpack.ini
@@ -0,0 +1,12 @@
+ [DEFAULT]
+head = head_addons.js head_unpack.js
+tail =
+firefox-appdir = browser
+skip-if = toolkit == 'android'
+dupe-manifest =
+tags = addons
+
+[test_webextension_paths.js]
+tags = webextensions
+
+[include:xpcshell-shared.ini]
diff --git a/toolkit/mozapps/webextensions/test/xpcshell/xpcshell.ini b/toolkit/mozapps/webextensions/test/xpcshell/xpcshell.ini
new file mode 100644
index 000000000..2b95eb158
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpcshell/xpcshell.ini
@@ -0,0 +1,50 @@
+[DEFAULT]
+skip-if = toolkit == 'android'
+tags = addons
+head = head_addons.js
+tail =
+firefox-appdir = browser
+dupe-manifest =
+support-files =
+  data/**
+  xpcshell-shared.ini
+
+[test_addon_path_service.js]
+[test_asyncBlocklistLoad.js]
+[test_blocklist_gfx.js]
+[test_cache_certdb.js]
+run-if = addon_signing
+[test_cacheflush.js]
+[test_DeferredSave.js]
+[test_gmpProvider.js]
+skip-if = appname != "firefox"
+[test_hotfix_cert.js]
+[test_isReady.js]
+[test_metadata_update.js]
+[test_pluginInfoURL.js]
+[test_provider_markSafe.js]
+[test_provider_shutdown.js]
+[test_provider_unsafe_access_shutdown.js]
+[test_provider_unsafe_access_startup.js]
+[test_ProductAddonChecker.js]
+[test_shutdown.js]
+[test_system_update.js]
+[test_system_reset.js]
+[test_XPIcancel.js]
+[test_XPIStates.js]
+[test_temporary.js]
+tags = webextensions
+[test_install_from_sources.js]
+[test_proxies.js]
+[test_proxy.js]
+[test_pass_symbol.js]
+[test_delay_update.js]
+[test_nodisable_hidden.js]
+[test_delay_update_webextension.js]
+skip-if = appname == "thunderbird"
+tags = webextensions
+[test_dependencies.js]
+[test_schema_change.js]
+[test_system_delay_update.js]
+
+[include:xpcshell-shared.ini]
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/.eslintrc.js b/toolkit/mozapps/webextensions/test/xpinstall/.eslintrc.js
new file mode 100644
index 000000000..2852eb81d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/.eslintrc.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = { // eslint-disable-line no-undef
+  "extends": [
+    "../../../../../testing/mochitest/browser.eslintrc.js"
+  ]
+};
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/amosigned.xpi b/toolkit/mozapps/webextensions/test/xpinstall/amosigned.xpi
new file mode 100644
index 000000000..4edf91e34
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/amosigned.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/amosigned2.xpi b/toolkit/mozapps/webextensions/test/xpinstall/amosigned2.xpi
new file mode 100644
index 000000000..74e877f26
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/amosigned2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/authRedirect.sjs b/toolkit/mozapps/webextensions/test/xpinstall/authRedirect.sjs
new file mode 100644
index 000000000..85d448e2b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/authRedirect.sjs
@@ -0,0 +1,21 @@
+// Simple script redirects to the query part of the uri if the browser
+// authenticates with username "testuser" password "testpass"
+
+function handleRequest(request, response) {
+  if (request.hasHeader("Authorization")) {
+    if (request.getHeader("Authorization") == "Basic dGVzdHVzZXI6dGVzdHBhc3M=") {
+      response.setStatusLine(request.httpVersion, 302, "Found");
+      response.setHeader("Location", request.queryString);
+      response.write("See " + request.queryString);
+    }
+    else {
+      response.setStatusLine(request.httpVersion, 403, "Forbidden");
+      response.write("Invalid credentials");
+    }
+  }
+  else {
+    response.setStatusLine(request.httpVersion, 401, "Authentication required");
+    response.setHeader("WWW-Authenticate", "basic realm=\"XPInstall\"", false);
+    response.write("Unauthenticated request");
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser.ini b/toolkit/mozapps/webextensions/test/xpinstall/browser.ini
new file mode 100644
index 000000000..5627f47a2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser.ini
@@ -0,0 +1,119 @@
+[DEFAULT]
+support-files =
+  amosigned.xpi
+  amosigned2.xpi
+  authRedirect.sjs
+  bug540558.html
+  bug638292.html
+  bug645699.html
+  concurrent_installs.html
+  cookieRedirect.sjs
+  corrupt.xpi
+  empty.xpi
+  enabled.html
+  hashRedirect.sjs
+  head.js
+  incompatible.xpi
+  installchrome.html
+  installtrigger.html
+  installtrigger_frame.html
+  multipackage.xpi
+  navigate.html
+  redirect.sjs
+  restartless.xpi
+  restartless-unsigned.xpi
+  signed-multipackage.xpi
+  signed-no-cn.xpi
+  signed-no-o.xpi
+  signed-tampered.xpi
+  signed-untrusted.xpi
+  signed.xpi
+  signed2.xpi
+  slowinstall.sjs
+  startsoftwareupdate.html
+  theme.xpi
+  triggerredirect.html
+  unsigned.xpi
+
+[browser_amosigned_trigger.js]
+[browser_amosigned_trigger_iframe.js]
+[browser_amosigned_url.js]
+[browser_auth.js]
+[browser_auth2.js]
+[browser_auth3.js]
+[browser_auth4.js]
+[browser_badargs.js]
+[browser_badargs2.js]
+[browser_badhash.js]
+[browser_badhashtype.js]
+[browser_bug540558.js]
+[browser_bug611242.js]
+[browser_bug638292.js]
+[browser_bug645699.js]
+[browser_bug672485.js]
+skip-if = true # disabled due to a leak. See bug 682410.
+[browser_cancel.js]
+[browser_concurrent_installs.js]
+[browser_cookies.js]
+[browser_cookies2.js]
+[browser_cookies3.js]
+[browser_cookies4.js]
+skip-if = true # Bug 1084646
+[browser_corrupt.js]
+[browser_datauri.js]
+[browser_empty.js]
+[browser_enabled.js]
+[browser_enabled2.js]
+[browser_enabled3.js]
+[browser_hash.js]
+[browser_hash2.js]
+[browser_httphash.js]
+[browser_httphash2.js]
+[browser_httphash3.js]
+[browser_httphash4.js]
+[browser_httphash5.js]
+[browser_httphash6.js]
+[browser_installchrome.js]
+[browser_localfile.js]
+[browser_localfile2.js]
+[browser_localfile3.js]
+[browser_localfile4.js]
+[browser_multipackage.js]
+[browser_navigateaway.js]
+[browser_navigateaway2.js]
+[browser_navigateaway3.js]
+skip-if = (os == "mac" || os == "win") # Bug 1198261
+[browser_navigateaway4.js]
+[browser_offline.js]
+[browser_relative.js]
+[browser_signed_multipackage.js]
+skip-if = require_signing
+[browser_signed_multiple.js]
+skip-if = require_signing
+[browser_signed_naming.js]
+skip-if = require_signing
+[browser_signed_tampered.js]
+skip-if = require_signing
+[browser_signed_trigger.js]
+skip-if = require_signing
+[browser_signed_untrusted.js]
+skip-if = require_signing
+[browser_signed_url.js]
+skip-if = require_signing
+[browser_softwareupdate.js]
+[browser_switchtab.js]
+[browser_trigger_redirect.js]
+[browser_unsigned_trigger.js]
+skip-if = require_signing
+[browser_unsigned_trigger_iframe.js]
+skip-if = require_signing
+[browser_unsigned_trigger_xorigin.js]
+[browser_unsigned_url.js]
+skip-if = require_signing
+[browser_whitelist.js]
+[browser_whitelist2.js]
+[browser_whitelist3.js]
+[browser_whitelist4.js]
+[browser_whitelist5.js]
+[browser_whitelist6.js]
+[browser_whitelist7.js]
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_amosigned_trigger.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_amosigned_trigger.js
new file mode 100644
index 000000000..d61ef7362
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_amosigned_trigger.js
@@ -0,0 +1,56 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through an InstallTrigger call in web
+// content.
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.finalContentEvent = "InstallComplete";
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: TESTROOT + "amosigned.xpi",
+      IconURL: TESTROOT + "icon.png",
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function confirm_install(window) {
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "XPI Test", "Should have seen the name");
+  is(items[0].url, TESTROOT + "amosigned.xpi", "Should have listed the correct url for the item");
+  is(items[0].icon, TESTROOT + "icon.png", "Should have listed the correct icon for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+const finish_test = Task.async(function*(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  const results = yield ContentTask.spawn(gBrowser.selectedBrowser, null, () => {
+    return {
+      return: content.document.getElementById("return").textContent,
+      status: content.document.getElementById("status").textContent,
+    }
+  })
+
+  is(results.return, "true", "installTrigger should have claimed success");
+  is(results.status, "0", "Callback should have seen a success");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_amosigned_trigger_iframe.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_amosigned_trigger_iframe.js
new file mode 100644
index 000000000..66564afaa
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_amosigned_trigger_iframe.js
@@ -0,0 +1,57 @@
+// ----------------------------------------------------------------------------
+// Test for bug 589598 - Ensure that installing through InstallTrigger
+// works in an iframe in web content.
+
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.finalContentEvent = "InstallComplete";
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var inner_url = encodeURIComponent(TESTROOT + "installtrigger.html?" + encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: TESTROOT + "amosigned.xpi",
+      IconURL: TESTROOT + "icon.png",
+      toString: function() { return this.URL; }
+    }
+  })));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger_frame.html?" + inner_url);
+}
+
+function confirm_install(window) {
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "XPI Test", "Should have seen the name");
+  is(items[0].url, TESTROOT + "amosigned.xpi", "Should have listed the correct url for the item");
+  is(items[0].icon, TESTROOT + "icon.png", "Should have listed the correct icon for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+const finish_test = Task.async(function*(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  const results = yield ContentTask.spawn(gBrowser.selectedBrowser, null, () => {
+    return {
+      return: content.frames[0].document.getElementById("return").textContent,
+      status: content.frames[0].document.getElementById("status").textContent,
+    }
+  })
+
+  is(results.return, "true", "installTrigger in iframe should have claimed success");
+  is(results.status, "0", "Callback in iframe should have seen a success");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_amosigned_url.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_amosigned_url.js
new file mode 100644
index 000000000..f6c39b7bb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_amosigned_url.js
@@ -0,0 +1,35 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on by navigating directly to the url
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  gBrowser.selectedTab = gBrowser.addTab("about:blank");
+  BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser).then(() => {
+    gBrowser.loadURI(TESTROOT + "amosigned.xpi");
+  });
+}
+
+function confirm_install(window) {
+  let items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "XPI Test", "Should have had the filename for the item name");
+  is(items[0].url, TESTROOT + "amosigned.xpi", "Should have listed the correct url for the item");
+  is(items[0].icon, "", "Should have listed no icon for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_auth.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_auth.js
new file mode 100644
index 000000000..1bfa7696f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_auth.js
@@ -0,0 +1,47 @@
+// ----------------------------------------------------------------------------
+// Test whether an install succeeds when authentication is required
+// This verifies bug 312473
+function test() {
+  Harness.authenticationCallback = get_auth_info;
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var prefs = Cc["@mozilla.org/preferences-service;1"].
+                        getService(Ci.nsIPrefBranch);
+  prefs.setIntPref("network.auth.subresource-http-auth-allow", 2);
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "authRedirect.sjs?" + TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function get_auth_info() {
+  return [ "testuser", "testpass" ];
+}
+
+function download_failed(install) {
+  ok(false, "Install should not have failed");
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+  var authMgr = Components.classes['@mozilla.org/network/http-auth-manager;1']
+                          .getService(Components.interfaces.nsIHttpAuthManager);
+  authMgr.clearAll();
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_auth2.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_auth2.js
new file mode 100644
index 000000000..80942a9f4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_auth2.js
@@ -0,0 +1,46 @@
+// ----------------------------------------------------------------------------
+// Test whether an install fails when authentication is required and bad
+// credentials are given
+// This verifies bug 312473
+function test() {
+  requestLongerTimeout(2);
+  Harness.authenticationCallback = get_auth_info;
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "authRedirect.sjs?" + TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function get_auth_info() {
+  return [ "baduser", "badpass" ];
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_NETWORK_FAILURE, "Install should have failed");
+}
+
+function install_ended(install, addon) {
+  ok(false, "Add-on should not have installed");
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  var authMgr = Components.classes['@mozilla.org/network/http-auth-manager;1']
+                          .getService(Components.interfaces.nsIHttpAuthManager);
+  authMgr.clearAll();
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_auth3.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_auth3.js
new file mode 100644
index 000000000..4973a1b35
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_auth3.js
@@ -0,0 +1,53 @@
+// ----------------------------------------------------------------------------
+// Test whether an install fails when authentication is required and it is
+// canceled
+// This verifies bug 312473
+
+//
+// Whitelisting this test.
+// As part of bug 1077403, the leaking uncaught rejection should be fixed.
+//
+thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: this.docShell is null");
+
+
+function test() {
+  Harness.authenticationCallback = get_auth_info;
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "authRedirect.sjs?" + TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function get_auth_info() {
+  return null;
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_NETWORK_FAILURE, "Install should have failed");
+}
+
+function install_ended(install, addon) {
+  ok(false, "Add-on should not have installed");
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  var authMgr = Components.classes['@mozilla.org/network/http-auth-manager;1']
+                          .getService(Components.interfaces.nsIHttpAuthManager);
+  authMgr.clearAll();
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_auth4.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_auth4.js
new file mode 100644
index 000000000..a3157961d
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_auth4.js
@@ -0,0 +1,52 @@
+//
+// Whitelisting this test.
+// As part of bug 1077403, the leaking uncaught rejection should be fixed.
+//
+thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: this.docShell is null");
+
+
+// ----------------------------------------------------------------------------
+// Test whether a request for auth for an XPI switches to the appropriate tab
+var gNewTab;
+
+function test() {
+  Harness.authenticationCallback = get_auth_info;
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "authRedirect.sjs?" + TESTROOT + "amosigned.xpi"
+  }));
+  gNewTab = gBrowser.addTab();
+  gBrowser.getBrowserForTab(gNewTab).loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function get_auth_info() {
+  is(gBrowser.selectedTab, gNewTab, "Should have focused the tab loading the XPI");
+  return [ "testuser", "testpass" ];
+}
+
+function download_failed(install) {
+  ok(false, "Install should not have failed");
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+  var authMgr = Components.classes['@mozilla.org/network/http-auth-manager;1']
+                          .getService(Components.interfaces.nsIHttpAuthManager);
+  authMgr.clearAll();
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeTab(gNewTab);
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_badargs.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_badargs.js
new file mode 100644
index 000000000..b4b1110b0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_badargs.js
@@ -0,0 +1,38 @@
+// ----------------------------------------------------------------------------
+// Test whether passing a simple string to InstallTrigger.install throws an
+// exception
+function test() {
+  waitForExplicitFinish();
+
+  var triggers = encodeURIComponent(JSON.stringify(TESTROOT + "amosigned.xpi"));
+  gBrowser.selectedTab = gBrowser.addTab();
+
+  ContentTask.spawn(gBrowser.selectedBrowser, null, function() {
+    return new Promise(resolve => {
+      addEventListener("load", () => {
+        content.addEventListener("InstallTriggered", () => {
+          resolve(content.document.getElementById("return").textContent);
+        });
+      }, true);
+    });
+  }).then(page_loaded);
+
+  // In non-e10s the exception in the content page would trigger a test failure
+  if (!gMultiProcessBrowser)
+    expectUncaughtException();
+
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function page_loaded(result) {
+  is(result, "exception", "installTrigger should have failed");
+
+  // In non-e10s the exception from the page is thrown after the event so we
+  // have to spin the event loop to make sure it arrives so expectUncaughtException
+  // sees it.
+  executeSoon(() => {
+    gBrowser.removeCurrentTab();
+    finish();
+  });
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_badargs2.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_badargs2.js
new file mode 100644
index 000000000..7137df318
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_badargs2.js
@@ -0,0 +1,42 @@
+// ----------------------------------------------------------------------------
+// Test whether passing an undefined url InstallTrigger.install throws an
+// exception
+function test() {
+  waitForExplicitFinish();
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: undefined
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+
+  ContentTask.spawn(gBrowser.selectedBrowser, null, function() {
+    return new Promise(resolve => {
+      addEventListener("load", () => {
+        content.addEventListener("InstallTriggered", () => {
+          resolve(content.document.getElementById("return").textContent);
+        });
+      }, true);
+    });
+  }).then(page_loaded);
+
+  // In non-e10s the exception in the content page would trigger a test failure
+  if (!gMultiProcessBrowser)
+    expectUncaughtException();
+
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function page_loaded(result) {
+  is(result, "exception", "installTrigger should have failed");
+
+  // In non-e10s the exception from the page is thrown after the event so we
+  // have to spin the event loop to make sure it arrives so expectUncaughtException
+  // sees it.
+  executeSoon(() => {
+    gBrowser.removeCurrentTab();
+    finish();
+  });
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_badhash.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_badhash.js
new file mode 100644
index 000000000..9a26a77e4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_badhash.js
@@ -0,0 +1,33 @@
+// ----------------------------------------------------------------------------
+// Test whether an install fails when an invalid hash is included
+// This verifies bug 302284
+function test() {
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: TESTROOT + "amosigned.xpi",
+      Hash: "sha1:643b08418599ddbd1ea8a511c90696578fb844b9",
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_INCORRECT_HASH, "Install should fail");
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  Services.perms.remove(makeURI("http://example.com/"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_badhashtype.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_badhashtype.js
new file mode 100644
index 000000000..a9de9e4f0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_badhashtype.js
@@ -0,0 +1,33 @@
+// ----------------------------------------------------------------------------
+// Test whether an install fails when an unknown hash type is included
+// This verifies bug 302284
+function test() {
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: TESTROOT + "amosigned.xpi",
+      Hash: "foo:3d0dc22e1f394e159b08aaf5f0f97de4d5c65f4f",
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_INCORRECT_HASH, "Install should fail");
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  Services.perms.remove(makeURI("http://example.com/"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_bug540558.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_bug540558.js
new file mode 100644
index 000000000..4e7e20717
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_bug540558.js
@@ -0,0 +1,25 @@
+// ----------------------------------------------------------------------------
+// Tests that calling InstallTrigger.installChrome works
+function test() {
+  Harness.installEndedCallback = check_xpi_install;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "bug540558.html");
+}
+
+function check_xpi_install(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_bug611242.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_bug611242.js
new file mode 100644
index 000000000..4f3cd087f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_bug611242.js
@@ -0,0 +1,17 @@
+// ----------------------------------------------------------------------------
+// Test whether setting a new property in InstallTrigger then persists to other
+// page loads
+add_task(function* test() {
+  yield BrowserTestUtils.withNewTab({ gBrowser, url: TESTROOT + "enabled.html" }, function* (browser) {
+    yield ContentTask.spawn(browser, null, () => {
+      content.wrappedJSObject.InstallTrigger.enabled.k = function() { };
+    });
+
+    BrowserTestUtils.loadURI(browser, TESTROOT2 + "enabled.html");
+    yield BrowserTestUtils.browserLoaded(browser);
+    yield ContentTask.spawn(browser, null, () => {
+      is(content.wrappedJSObject.InstallTrigger.enabled.k, undefined, "Property should not be defined");
+    });
+  });
+});
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_bug638292.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_bug638292.js
new file mode 100644
index 000000000..0d96e7cbe
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_bug638292.js
@@ -0,0 +1,40 @@
+// ----------------------------------------------------------------------------
+// Test whether an InstallTrigger.enabled is working
+add_task(function * ()
+{
+  let testtab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, TESTROOT + "bug638292.html");
+
+  function* verify(link, button)
+  {
+    info("Clicking " + link);
+
+    let waitForNewTabPromise = BrowserTestUtils.waitForNewTab(gBrowser);
+
+    yield BrowserTestUtils.synthesizeMouseAtCenter("#" + link, { button: button },
+                                                   gBrowser.selectedBrowser);
+
+    let newtab = yield waitForNewTabPromise;
+
+    yield BrowserTestUtils.browserLoaded(newtab.linkedBrowser);
+
+    let result = yield ContentTask.spawn(newtab.linkedBrowser, { }, function* () {
+      return (content.document.getElementById("enabled").textContent == "true");
+    });
+
+    ok(result, "installTrigger for " + link + " should have been enabled");
+
+    // Focus the old tab (link3 is opened in the background)
+    if (link != "link3") {
+      yield BrowserTestUtils.switchTab(gBrowser, testtab);
+    }
+    gBrowser.removeTab(newtab);
+  }
+
+  yield* verify("link1", 0);
+  yield* verify("link2", 0);
+  yield* verify("link3", 1);
+
+  gBrowser.removeCurrentTab();
+});
+
+
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_bug645699.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_bug645699.js
new file mode 100644
index 000000000..f32d2c9d2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_bug645699.js
@@ -0,0 +1,36 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through an InstallTrigger call in web
+// content. This should be blocked by the whitelist check.
+// This verifies bug 645699
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installBlockedCallback = allow_blocked;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.org/"), "install", pm.ALLOW_ACTION);
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "bug645699.html");
+}
+
+function allow_blocked(installInfo) {
+  is(installInfo.browser, gBrowser.selectedBrowser, "Install should have been triggered by the right browser");
+  is(installInfo.originatingURI.spec, gBrowser.currentURI.spec, "Install should have been triggered by the right uri");
+  return false;
+}
+
+function confirm_install(window) {
+  ok(false, "Should not see the install dialog");
+  return false;
+}
+
+function finish_test(count) {
+  is(count, 0, "0 Add-ons should have been successfully installed");
+  Services.perms.remove(makeURI("http://addons.mozilla.org"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_bug672485.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_bug672485.js
new file mode 100644
index 000000000..81d89c025
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_bug672485.js
@@ -0,0 +1,52 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var gWindowWatcher = null;
+
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installCancelledCallback = cancelled_install;
+  Harness.installEndedCallback = complete_install;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  gWindowWatcher = Services.ww;
+  delete Services.ww;
+  is(Services.ww, undefined, "Services.ww should now be undefined");
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function confirm_install(window) {
+  ok(false, "Should not see the install dialog");
+  return false;
+}
+
+function cancelled_install() {
+  ok(true, "Install should b cancelled");
+}
+
+function complete_install() {
+  ok(false, "Install should not have completed");
+  return false;
+}
+
+function finish_test(count) {
+  is(count, 0, "0 Add-ons should have been successfully installed");
+
+  gBrowser.removeCurrentTab();
+
+  Services.ww = gWindowWatcher;
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_cancel.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_cancel.js
new file mode 100644
index 000000000..e30d7a0e5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_cancel.js
@@ -0,0 +1,60 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// ----------------------------------------------------------------------------
+// Tests that cancelling multiple installs doesn't fail
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "amosigned.xpi",
+    "Unsigned XPI 2": TESTROOT + "amosigned2.xpi",
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function get_item(items, url) {
+  for (let item of items) {
+    if (item.url == url)
+      return item;
+  }
+  ok(false, "Item for " + url + " was not listed");
+  return null;
+}
+
+function confirm_install(window) {
+  let items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 2, "Should be 2 items listed in the confirmation dialog");
+  let item = get_item(items, TESTROOT + "amosigned.xpi");
+  if (item) {
+    is(item.name, "XPI Test", "Should have seen the name from the trigger list");
+    is(item.signed, "false", "Should have listed the item as signed");
+  }
+  item = get_item(items, TESTROOT + "amosigned2.xpi");
+  if (item) {
+    is(item.name, "Signed XPI Test", "Should have seen the name from the trigger list");
+    is(item.signed, "false", "Should have listed the item as signed");
+  }
+  return false;
+}
+
+function install_ended(install, addon) {
+  ok(false, "Should not have seen installs complete");
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_concurrent_installs.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_concurrent_installs.js
new file mode 100644
index 000000000..bf919d89c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_concurrent_installs.js
@@ -0,0 +1,127 @@
+// Test that having two frames that request installs at the same time doesn't
+// cause callback ID conflicts (discussed in bug 926712)
+
+var gConcurrentTabs = [];
+var gQueuedForInstall = [];
+var gResults = [];
+
+function frame_script() {
+  /* globals addMessageListener, sendAsyncMessage*/
+  addMessageListener("Test:StartInstall", () => {
+    content.document.getElementById("installnow").click()
+  });
+
+  addEventListener("load", () => {
+    sendAsyncMessage("Test:Loaded");
+
+    content.addEventListener("InstallComplete", (e) => {
+      sendAsyncMessage("Test:InstallComplete", e.detail);
+    }, true);
+  }, true);
+}
+
+var gAddonAndWindowListener = {
+  onOpenWindow: function(win) {
+    var window = win.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindow);
+    info("Window opened");
+
+    waitForFocus(function() {
+      info("Focused!");
+      // Initially the accept button is disabled on a countdown timer
+      let button = window.document.documentElement.getButton("accept");
+      button.disabled = false;
+      if (gQueuedForInstall.length > 0) {
+        // Start downloading the next add-on while we accept this dialog:
+        installNext();
+      }
+      window.document.documentElement.acceptDialog();
+    }, window);
+  },
+  onCloseWindow: function(win) { },
+  onInstallEnded: function(install) {
+    install.cancel();
+  },
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIWindowMediatorListener])
+};
+
+function installNext() {
+  let tab = gQueuedForInstall.shift();
+  tab.linkedBrowser.messageManager.sendAsyncMessage("Test:StartInstall");
+}
+
+function winForTab(t) {
+  return t.linkedBrowser.contentWindow;
+}
+
+function createTab(url) {
+  let tab = gBrowser.addTab(url);
+  tab.linkedBrowser.messageManager.loadFrameScript("data:,(" + frame_script.toString() + ")();", true);
+
+  tab.linkedBrowser.messageManager.addMessageListener("Test:InstallComplete", ({data}) => {
+    gResults.push(data);
+    if (gResults.length == 2) {
+      executeSoon(endThisTest);
+    }
+  });
+
+  return tab;
+}
+
+function test() {
+  waitForExplicitFinish();
+
+  Services.prefs.setBoolPref(PREF_LOGGING_ENABLED, true);
+  Services.prefs.setBoolPref(PREF_INSTALL_REQUIRESECUREORIGIN, false);
+  Services.wm.addListener(gAddonAndWindowListener);
+  AddonManager.addInstallListener(gAddonAndWindowListener);
+  registerCleanupFunction(function() {
+    Services.wm.removeListener(gAddonAndWindowListener);
+    AddonManager.removeInstallListener(gAddonAndWindowListener);
+    Services.prefs.clearUserPref(PREF_LOGGING_ENABLED);
+    Services.prefs.clearUserPref(PREF_INSTALL_REQUIRESECUREORIGIN);
+
+    Services.perms.remove(makeURI("http://example.com"), "install");
+    Services.perms.remove(makeURI("http://example.org"), "install");
+
+    while (gConcurrentTabs.length) {
+      gBrowser.removeTab(gConcurrentTabs.shift());
+    }
+  });
+
+  let pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+  pm.add(makeURI("http://example.org/"), "install", pm.ALLOW_ACTION);
+
+  gConcurrentTabs.push(createTab(TESTROOT + "concurrent_installs.html"));
+  gConcurrentTabs.push(createTab(TESTROOT2 + "concurrent_installs.html"));
+
+  let promises = gConcurrentTabs.map((t) => {
+    return new Promise(resolve => {
+      t.linkedBrowser.messageManager.addMessageListener("Test:Loaded", resolve);
+    });
+  });
+
+  Promise.all(promises).then(() => {
+    gQueuedForInstall = [...gConcurrentTabs];
+    installNext();
+  });
+}
+
+function endThisTest() {
+  is(gResults.length, 2, "Should have two urls");
+  isnot(gResults[0].loc, gResults[1].loc, "Should not have results from the same page.");
+  isnot(gResults[0].xpi, gResults[1].xpi, "Should not have the same XPIs.");
+  for (let i = 0; i < 2; i++) {
+    let {loc, xpi} = gResults[i];
+    if (loc.includes("example.org")) {
+      ok(xpi.includes("example.org"), "Should get .org XPI for .org loc");
+    } else if (loc.includes("example.com")) {
+      ok(xpi.includes("example.com"), "Should get .com XPI for .com loc");
+    } else {
+      ok(false, "Should never get anything that isn't from example.org or example.com");
+    }
+  }
+
+  finish();
+}
+
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies.js
new file mode 100644
index 000000000..541ac8333
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies.js
@@ -0,0 +1,30 @@
+// ----------------------------------------------------------------------------
+// Test that an install that requires cookies to be sent fails when no cookies
+// are set
+// This verifies bug 462739
+function test() {
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Cookie check": TESTROOT + "cookieRedirect.sjs?" + TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_NETWORK_FAILURE, "Install should fail");
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies2.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies2.js
new file mode 100644
index 000000000..1ef2b482f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies2.js
@@ -0,0 +1,40 @@
+// ----------------------------------------------------------------------------
+// Test that an install that requires cookies to be sent succeeds when cookies
+// are set
+// This verifies bug 462739
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var cm = Components.classes["@mozilla.org/cookiemanager;1"]
+                     .getService(Components.interfaces.nsICookieManager2);
+  cm.add("example.com", "/browser/" + RELATIVE_DIR, "xpinstall", "true", false,
+         false, true, (Date.now() / 1000) + 60, {});
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Cookie check": TESTROOT + "cookieRedirect.sjs?" + TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  var cm = Components.classes["@mozilla.org/cookiemanager;1"]
+                     .getService(Components.interfaces.nsICookieManager2);
+  cm.remove("example.com", "xpinstall", "/browser/" + RELATIVE_DIR, false, {});
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies3.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies3.js
new file mode 100644
index 000000000..833562d15
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies3.js
@@ -0,0 +1,44 @@
+// ----------------------------------------------------------------------------
+// Test that an install that requires cookies to be sent succeeds when cookies
+// are set and third party cookies are disabled.
+// This verifies bug 462739
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var cm = Components.classes["@mozilla.org/cookiemanager;1"]
+                     .getService(Components.interfaces.nsICookieManager2);
+  cm.add("example.com", "/browser/" + RELATIVE_DIR, "xpinstall", "true", false,
+         false, true, (Date.now() / 1000) + 60, {});
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  Services.prefs.setIntPref("network.cookie.cookieBehavior", 1);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Cookie check": TESTROOT + "cookieRedirect.sjs?" + TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  var cm = Components.classes["@mozilla.org/cookiemanager;1"]
+                     .getService(Components.interfaces.nsICookieManager2);
+  cm.remove("example.com", "xpinstall", "/browser/" + RELATIVE_DIR, false, {});
+
+  Services.prefs.clearUserPref("network.cookie.cookieBehavior");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies4.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies4.js
new file mode 100644
index 000000000..792146c64
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_cookies4.js
@@ -0,0 +1,43 @@
+// ----------------------------------------------------------------------------
+// Test that an install that requires cookies to be sent fails when cookies
+// are set and third party cookies are disabled and the request is to a third
+// party.
+// This verifies bug 462739
+function test() {
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var cm = Components.classes["@mozilla.org/cookiemanager;1"]
+                     .getService(Components.interfaces.nsICookieManager2);
+  cm.add("example.org", "/browser/" + RELATIVE_DIR, "xpinstall", "true", false,
+         false, true, (Date.now() / 1000) + 60, {});
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  Services.prefs.setIntPref("network.cookie.cookieBehavior", 1);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Cookie check": TESTROOT2 + "cookieRedirect.sjs?" + TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_NETWORK_FAILURE, "Install should fail");
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  var cm = Components.classes["@mozilla.org/cookiemanager;1"]
+                     .getService(Components.interfaces.nsICookieManager2);
+  cm.remove("example.org", "xpinstall", "/browser/" + RELATIVE_DIR, false, {});
+
+  Services.prefs.clearUserPref("network.cookie.cookieBehavior");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_corrupt.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_corrupt.js
new file mode 100644
index 000000000..bd4d27fb0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_corrupt.js
@@ -0,0 +1,38 @@
+// ----------------------------------------------------------------------------
+// Test whether an install fails when the xpi is corrupt.
+function test() {
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.finalContentEvent = "InstallComplete";
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Corrupt XPI": TESTROOT + "corrupt.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_CORRUPT_FILE, "Install should fail");
+}
+
+const finish_test = Task.async(function*(count) {
+  is(count, 0, "No add-ons should have been installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  const results = yield ContentTask.spawn(gBrowser.selectedBrowser, null, () => {
+    return {
+      return: content.document.getElementById("return").textContent,
+      status: content.document.getElementById("status").textContent,
+    }
+  })
+
+  is(results.status, "-207", "Callback should have seen the failure");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_datauri.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_datauri.js
new file mode 100644
index 000000000..a8bdbde39
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_datauri.js
@@ -0,0 +1,37 @@
+// ----------------------------------------------------------------------------
+// Checks that a chained redirect through a data URI and javascript is blocked
+
+function setup_redirect(aSettings) {
+  var url = TESTROOT + "redirect.sjs?mode=setup";
+  for (var name in aSettings) {
+    url += "&" + name + "=" + encodeURIComponent(aSettings[name]);
+  }
+
+  var req = new XMLHttpRequest();
+  req.open("GET", url, false);
+  req.send(null);
+}
+
+function test() {
+  Harness.installOriginBlockedCallback = install_blocked;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  setup_redirect({
+    "Location": "data:text/html,<script>window.location.href='" + TESTROOT + "amosigned.xpi'</script>"
+  });
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "redirect.sjs?mode=redirect");
+}
+
+function install_blocked(installInfo) {
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_empty.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_empty.js
new file mode 100644
index 000000000..64ca5e6b9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_empty.js
@@ -0,0 +1,28 @@
+// ----------------------------------------------------------------------------
+// Test whether an install fails when there is no install script present.
+function test() {
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Empty XPI": TESTROOT + "empty.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_CORRUPT_FILE, "Install should fail");
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_enabled.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_enabled.js
new file mode 100644
index 000000000..adbec9499
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_enabled.js
@@ -0,0 +1,29 @@
+// ----------------------------------------------------------------------------
+// Test whether an InstallTrigger.enabled is working
+function test() {
+  waitForExplicitFinish();
+
+  gBrowser.selectedTab = gBrowser.addTab();
+
+  ContentTask.spawn(gBrowser.selectedBrowser, TESTROOT + "enabled.html", function (url) {
+    return new Promise(resolve => {
+      function page_loaded() {
+        content.removeEventListener("PageLoaded", page_loaded, false);
+        resolve(content.document.getElementById("enabled").textContent);
+      }
+
+      function load_listener() {
+        removeEventListener("load", load_listener, true);
+        content.addEventListener("PageLoaded", page_loaded, false);
+      }
+
+      addEventListener("load", load_listener, true);
+
+      content.location.href = url;
+    });
+  }).then(text => {
+    is(text, "true", "installTrigger should have been enabled");
+    gBrowser.removeCurrentTab();
+    finish();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_enabled2.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_enabled2.js
new file mode 100644
index 000000000..cc1b8a8b2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_enabled2.js
@@ -0,0 +1,32 @@
+// ----------------------------------------------------------------------------
+// Test whether an InstallTrigger.enabled is working
+function test() {
+  waitForExplicitFinish();
+
+  Services.prefs.setBoolPref("xpinstall.enabled", false);
+
+  gBrowser.selectedTab = gBrowser.addTab();
+
+  ContentTask.spawn(gBrowser.selectedBrowser, TESTROOT + "enabled.html", function (url) {
+    return new Promise(resolve => {
+      function page_loaded() {
+        content.removeEventListener("PageLoaded", page_loaded, false);
+        resolve(content.document.getElementById("enabled").textContent);
+      }
+
+      function load_listener() {
+        removeEventListener("load", load_listener, true);
+        content.addEventListener("PageLoaded", page_loaded, false);
+      }
+
+      addEventListener("load", load_listener, true);
+
+      content.location.href = url;
+    });
+  }).then(text => {
+    is(text, "false", "installTrigger should have not been enabled");
+    Services.prefs.clearUserPref("xpinstall.enabled");
+    gBrowser.removeCurrentTab();
+    finish();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_enabled3.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_enabled3.js
new file mode 100644
index 000000000..15bad4ba9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_enabled3.js
@@ -0,0 +1,52 @@
+// ----------------------------------------------------------------------------
+// Test whether an InstallTrigger.install call fails when xpinstall is disabled
+function test() {
+  Harness.installDisabledCallback = install_disabled;
+  Harness.installBlockedCallback = allow_blocked;
+  Harness.installConfirmCallback = confirm_install;
+  Harness.setup();
+
+  Services.prefs.setBoolPref("xpinstall.enabled", false);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+
+  ContentTask.spawn(gBrowser.selectedBrowser, TESTROOT + "installtrigger.html?" + triggers, url => {
+    return new Promise(resolve => {
+      function page_loaded() {
+        content.removeEventListener("PageLoaded", page_loaded, false);
+        resolve(content.document.getElementById("return").textContent);
+      }
+
+      function load_listener() {
+        removeEventListener("load", load_listener, true);
+        content.addEventListener("InstallTriggered", page_loaded, false);
+      }
+
+      addEventListener("load", load_listener, true);
+
+      content.location.href = url;
+    });
+  }).then(text => {
+    is(text, "false", "installTrigger should have not been enabled");
+    Services.prefs.clearUserPref("xpinstall.enabled");
+    gBrowser.removeCurrentTab();
+    Harness.finish();
+  });
+}
+
+function install_disabled(installInfo) {
+  ok(true, "Saw installation disabled");
+}
+
+function allow_blocked(installInfo) {
+  ok(false, "Should never see the blocked install notification");
+  return false;
+}
+
+function confirm_install(window) {
+  ok(false, "Should never see an install confirmation dialog");
+  return false;
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_hash.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_hash.js
new file mode 100644
index 000000000..4c45bd184
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_hash.js
@@ -0,0 +1,34 @@
+// ----------------------------------------------------------------------------
+// Test whether an install succeeds when a valid hash is included
+// This verifies bug 302284
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: TESTROOT + "amosigned.xpi",
+      Hash: "sha1:36ffb0acfd9c6e9682473aaebaab394d38b473c9",
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_hash2.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_hash2.js
new file mode 100644
index 000000000..4c8e262c7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_hash2.js
@@ -0,0 +1,34 @@
+// ----------------------------------------------------------------------------
+// Test whether an install succeeds using case-insensitive hashes
+// This verifies bug 603021
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: TESTROOT + "amosigned.xpi",
+      Hash: "sha1:36FFB0ACFD9C6E9682473AAEBAAB394D38B473C9",
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash.js
new file mode 100644
index 000000000..6a1222797
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash.js
@@ -0,0 +1,39 @@
+// ----------------------------------------------------------------------------
+// Test whether an install succeeds when a valid hash is included in the HTTPS
+// request
+// This verifies bug 591070
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+  Services.prefs.setBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, false);
+
+  var url = "https://example.com/browser/" + RELATIVE_DIR + "hashRedirect.sjs";
+  url += "?sha1:36ffb0acfd9c6e9682473aaebaab394d38b473c9|" + TESTROOT + "amosigned.xpi";
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: url,
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+  Services.prefs.clearUserPref(PREF_INSTALL_REQUIREBUILTINCERTS);
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash2.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash2.js
new file mode 100644
index 000000000..2d930d221
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash2.js
@@ -0,0 +1,39 @@
+// ----------------------------------------------------------------------------
+// Test whether an install fails when a invalid hash is included in the HTTPS
+// request
+// This verifies bug 591070
+function test() {
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+  Services.prefs.setBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, false);
+
+  var url = "https://example.com/browser/" + RELATIVE_DIR + "hashRedirect.sjs";
+  url += "?sha1:foobar|" + TESTROOT + "amosigned.xpi";
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: url,
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_INCORRECT_HASH, "Download should fail");
+}
+
+function finish_test(count) {
+  is(count, 0, "0 Add-ons should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+  Services.prefs.clearUserPref(PREF_INSTALL_REQUIREBUILTINCERTS);
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash3.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash3.js
new file mode 100644
index 000000000..5f3ef23ca
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash3.js
@@ -0,0 +1,39 @@
+// ----------------------------------------------------------------------------
+// Tests that the HTTPS hash is ignored when InstallTrigger is passed a hash.
+// This verifies bug 591070
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+  Services.prefs.setBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, false);
+
+  var url = "https://example.com/browser/" + RELATIVE_DIR + "hashRedirect.sjs";
+  url += "?sha1:foobar|" + TESTROOT + "amosigned.xpi";
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: url,
+      Hash: "sha1:36ffb0acfd9c6e9682473aaebaab394d38b473c9",
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+  Services.prefs.clearUserPref(PREF_INSTALL_REQUIREBUILTINCERTS);
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash4.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash4.js
new file mode 100644
index 000000000..3983662af
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash4.js
@@ -0,0 +1,36 @@
+// ----------------------------------------------------------------------------
+// Test that hashes are ignored in the headers of HTTP requests
+// This verifies bug 591070
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var url = "http://example.com/browser/" + RELATIVE_DIR + "hashRedirect.sjs";
+  url += "?sha1:foobar|" + TESTROOT + "amosigned.xpi";
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: url,
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash5.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash5.js
new file mode 100644
index 000000000..407158e4f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash5.js
@@ -0,0 +1,40 @@
+// ----------------------------------------------------------------------------
+// Test that only the first HTTPS hash is used
+// This verifies bug 591070
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+  Services.prefs.setBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, false);
+
+  var url = "https://example.com/browser/" + RELATIVE_DIR + "hashRedirect.sjs";
+  url += "?sha1:36ffb0acfd9c6e9682473aaebaab394d38b473c9|";
+  url += "https://example.com/browser/" + RELATIVE_DIR + "hashRedirect.sjs";
+  url += "?sha1:foobar|" + TESTROOT + "amosigned.xpi";
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: url,
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+  Services.prefs.clearUserPref(PREF_INSTALL_REQUIREBUILTINCERTS);
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash6.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash6.js
new file mode 100644
index 000000000..5e1da8175
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_httphash6.js
@@ -0,0 +1,83 @@
+// ----------------------------------------------------------------------------
+// Tests that a new hash is accepted when restarting a failed download
+// This verifies bug 593535
+function setup_redirect(aSettings) {
+  var url = "https://example.com/browser/" + RELATIVE_DIR + "redirect.sjs?mode=setup";
+  for (var name in aSettings) {
+    url += "&" + name + "=" + aSettings[name];
+  }
+
+  var req = new XMLHttpRequest();
+  req.open("GET", url, false);
+  req.send(null);
+}
+
+var gInstall = null;
+
+function test() {
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installsCompletedCallback = finish_failed_download;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+  Services.prefs.setBoolPref(PREF_INSTALL_REQUIREBUILTINCERTS, false);
+
+  // Set up the redirect to give a bad hash
+  setup_redirect({
+    "X-Target-Digest": "sha1:foo",
+    "Location": "http://example.com/browser/" + RELATIVE_DIR + "amosigned.xpi"
+  });
+
+  var url = "https://example.com/browser/" + RELATIVE_DIR + "redirect.sjs?mode=redirect";
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: url,
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_INCORRECT_HASH, "Should have seen a hash failure");
+  // Stash the failed download while the harness cleans itself up
+  gInstall = install;
+}
+
+function finish_failed_download() {
+  // Setup to track the successful re-download
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  // Give it the right hash this time
+  setup_redirect({
+    "X-Target-Digest": "sha1:36ffb0acfd9c6e9682473aaebaab394d38b473c9",
+    "Location": "http://example.com/browser/" + RELATIVE_DIR + "amosigned.xpi"
+  });
+
+  // The harness expects onNewInstall events for all installs that are about to start
+  Harness.onNewInstall(gInstall);
+
+  // Restart the install as a regular webpage install so the harness tracks it
+  AddonManager.installAddonsFromWebpage("application/x-xpinstall",
+                                        gBrowser.selectedBrowser,
+                                        gBrowser.contentPrincipal, [gInstall]);
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+  Services.prefs.clearUserPref(PREF_INSTALL_REQUIREBUILTINCERTS);
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_installchrome.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_installchrome.js
new file mode 100644
index 000000000..2380a4df2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_installchrome.js
@@ -0,0 +1,25 @@
+// ----------------------------------------------------------------------------
+// Tests that calling InstallTrigger.installChrome works
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installchrome.html? " + encodeURIComponent(TESTROOT + "amosigned.xpi"));
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile.js
new file mode 100644
index 000000000..997f386a6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile.js
@@ -0,0 +1,35 @@
+// ----------------------------------------------------------------------------
+// Tests installing an local file works when loading the url
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var cr = Components.classes["@mozilla.org/chrome/chrome-registry;1"]
+                     .getService(Components.interfaces.nsIChromeRegistry);
+
+  var chromeroot = extractChromeRoot(gTestPath);
+  var xpipath = chromeroot + "unsigned.xpi";
+  try {
+    xpipath = cr.convertChromeURL(makeURI(chromeroot + "amosigned.xpi")).spec;
+  } catch (ex) {
+    // scenario where we are running from a .jar and already extracted
+  }
+
+  gBrowser.selectedTab = gBrowser.addTab("about:blank");
+  BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser).then(() => {
+    gBrowser.loadURI(xpipath);
+  });
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile2.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile2.js
new file mode 100644
index 000000000..b0e3ffc42
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile2.js
@@ -0,0 +1,38 @@
+// ----------------------------------------------------------------------------
+// Test whether an install fails if the url is a local file when requested from
+// web content
+add_task(function* test() {
+  var cr = Components.classes["@mozilla.org/chrome/chrome-registry;1"]
+                     .getService(Components.interfaces.nsIChromeRegistry);
+
+  var chromeroot = getChromeRoot(gTestPath);
+  var xpipath = chromeroot + "amosigned.xpi";
+  try {
+    xpipath = cr.convertChromeURL(makeURI(xpipath)).spec;
+  } catch (ex) {
+    // scenario where we are running from a .jar and already extracted
+  }
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": xpipath
+  }));
+
+  // In non-e10s the exception in the content page would trigger a test failure
+  if (!gMultiProcessBrowser)
+    expectUncaughtException();
+
+  let URI = TESTROOT + "installtrigger.html?" + triggers;
+  yield BrowserTestUtils.withNewTab({ gBrowser, url: "about:blank" }, function* (browser) {
+    yield ContentTask.spawn(browser, URI, function* (URI) {
+      content.location.href = URI;
+
+      let loaded = ContentTaskUtils.waitForEvent(this, "load", true);
+      let installTriggered = ContentTaskUtils.waitForEvent(this, "InstallTriggered", true, null, true);
+      yield Promise.all([ loaded, installTriggered ]);
+
+      let doc = content.document;
+      is(doc.getElementById("return").textContent, "exception", "installTrigger should have failed");
+    });
+  });
+});
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile3.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile3.js
new file mode 100644
index 000000000..891b85ebc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile3.js
@@ -0,0 +1,41 @@
+// ----------------------------------------------------------------------------
+// Tests installing an add-on from a local file with whitelisting disabled.
+// This should be blocked by the whitelist check.
+function test() {
+  Harness.installBlockedCallback = allow_blocked;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  // Disable direct request whitelisting, installing from file should be blocked.
+  Services.prefs.setBoolPref("xpinstall.whitelist.directRequest", false);
+
+  var cr = Components.classes["@mozilla.org/chrome/chrome-registry;1"]
+                     .getService(Components.interfaces.nsIChromeRegistry);
+
+  var chromeroot = extractChromeRoot(gTestPath);
+  var xpipath = chromeroot + "amosigned.xpi";
+  try {
+    xpipath = cr.convertChromeURL(makeURI(xpipath)).spec;
+  } catch (ex) {
+    // scenario where we are running from a .jar and already extracted
+  }
+
+  gBrowser.selectedTab = gBrowser.addTab("about:blank");
+  BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser).then(() => {
+    gBrowser.loadURI(xpipath);
+  });
+}
+
+function allow_blocked(installInfo) {
+  ok(true, "Seen blocked");
+  return false;
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+
+  Services.prefs.clearUserPref("xpinstall.whitelist.directRequest");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile4.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile4.js
new file mode 100644
index 000000000..5203c3153
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_localfile4.js
@@ -0,0 +1,41 @@
+// ----------------------------------------------------------------------------
+// Tests installing an add-on from a local file with whitelisting disabled.
+// This should be blocked by the whitelist check.
+function test() {
+  Harness.installBlockedCallback = allow_blocked;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  // Disable file request whitelisting, installing by file referrer should be blocked.
+  Services.prefs.setBoolPref("xpinstall.whitelist.fileRequest", false);
+
+  var cr = Components.classes["@mozilla.org/chrome/chrome-registry;1"]
+                     .getService(Components.interfaces.nsIChromeRegistry);
+
+  var chromeroot = extractChromeRoot(gTestPath);
+  var xpipath = chromeroot;
+  try {
+    xpipath = cr.convertChromeURL(makeURI(chromeroot)).spec;
+  } catch (ex) {
+    // scenario where we are running from a .jar and already extracted
+  }
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(xpipath + "installtrigger.html?" + triggers);
+}
+
+function allow_blocked(installInfo) {
+  ok(true, "Seen blocked");
+  return false;
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+
+  Services.prefs.clearUserPref("xpinstall.whitelist.fileRequest");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_multipackage.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_multipackage.js
new file mode 100644
index 000000000..d022d713a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_multipackage.js
@@ -0,0 +1,52 @@
+// ----------------------------------------------------------------------------
+// Tests installing an signed add-on by navigating directly to the url
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  gBrowser.selectedTab = gBrowser.addTab("about:blank");
+  BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser).then(() => {
+    gBrowser.loadURI(TESTROOT + "multipackage.xpi");
+  });
+}
+
+function get_item(items, name) {
+  for (let item of items) {
+    if (item.name == name)
+      return item;
+  }
+  ok(false, "Item for " + name + " was not listed");
+  return null;
+}
+
+function confirm_install(window) {
+  let items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 2, "Should be 2 items listed in the confirmation dialog");
+
+  let item = get_item(items, "XPI Test");
+  if (item) {
+    is(item.signed, "false", "Should not have listed the item as signed");
+    is(item.icon, "", "Should have listed no icon for the item");
+  }
+
+  item = get_item(items, "Signed XPI Test");
+  if (item) {
+    is(item.signed, "false", "Should have listed the item as signed");
+    is(item.icon, "", "Should have listed no icon for the item");
+  }
+
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 2, "2 Add-ons should have been successfully installed");
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway.js
new file mode 100644
index 000000000..f092edb8c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway.js
@@ -0,0 +1,36 @@
+// ----------------------------------------------------------------------------
+// Tests that navigating away from the initiating page during the install
+// doesn't break the install.
+// This verifies bug 473060
+function test() {
+  Harness.downloadProgressCallback = download_progress;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_progress(addon, value, maxValue) {
+  gBrowser.loadURI(TESTROOT + "enabled.html");
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway2.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway2.js
new file mode 100644
index 000000000..a41662e1e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway2.js
@@ -0,0 +1,34 @@
+// ----------------------------------------------------------------------------
+// Tests that closing the initiating page during the install cancels the install
+// to avoid spoofing the user.
+function test() {
+  Harness.downloadProgressCallback = download_progress;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_progress(addon, value, maxValue) {
+  gBrowser.removeCurrentTab();
+}
+
+function install_ended(install, addon) {
+  ok(false, "Should not have seen installs complete");
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway3.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway3.js
new file mode 100644
index 000000000..3948d5649
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway3.js
@@ -0,0 +1,38 @@
+// ----------------------------------------------------------------------------
+// Tests that navigating to a new origin cancels ongoing installs.
+
+// Block the modal install UI from showing.
+Services.prefs.setBoolPref(PREF_CUSTOM_CONFIRMATION_UI, true);
+
+function test() {
+  Harness.downloadProgressCallback = download_progress;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_progress(addon, value, maxValue) {
+  gBrowser.loadURI(TESTROOT2 + "enabled.html");
+}
+
+function install_ended(install, addon) {
+  ok(false, "Should not have seen installs complete");
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway4.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway4.js
new file mode 100644
index 000000000..61844c5a1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_navigateaway4.js
@@ -0,0 +1,44 @@
+// ----------------------------------------------------------------------------
+// Tests that navigating to a new origin cancels ongoing installs and closes
+// the install UI.
+var sawUnload = null;
+
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function confirm_install(window) {
+  sawUnload = BrowserTestUtils.waitForEvent(window, "unload");
+
+  gBrowser.loadURI(TESTROOT2 + "enabled.html");
+
+  return Harness.leaveOpen;
+}
+
+function install_ended(install, addon) {
+  ok(false, "Should not have seen installs complete");
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  sawUnload.then(() => {
+    ok(true, "The install UI should have closed itself.");
+    gBrowser.removeCurrentTab();
+    Harness.finish();
+  });
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_offline.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_offline.js
new file mode 100644
index 000000000..eb4ac391f
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_offline.js
@@ -0,0 +1,62 @@
+var proxyPrefValue;
+
+// ----------------------------------------------------------------------------
+// Tests that going offline cancels an in progress download.
+function test() {
+  Harness.downloadProgressCallback = download_progress;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function download_progress(addon, value, maxValue) {
+  try {
+    // Tests always connect to localhost, and per bug 87717, localhost is now
+    // reachable in offline mode.  To avoid this, disable any proxy.
+    proxyPrefValue = Services.prefs.getIntPref("network.proxy.type");
+    Services.prefs.setIntPref("network.proxy.type", 0);
+    Services.io.manageOfflineStatus = false;
+    Services.io.offline = true;
+  } catch (ex) {
+  }
+}
+
+function finish_test(count) {
+  function wait_for_online() {
+    info("Checking if the browser is still offline...");
+
+    let tab = gBrowser.selectedTab;
+    ContentTask.spawn(tab.linkedBrowser, null, function*() {
+      yield ContentTaskUtils.waitForEvent(this, "DOMContentLoaded", true);
+      return content.document.documentURI;
+    }).then(url => {
+      info("loaded: " + url);
+      if (/^about:neterror\?e=netOffline/.test(url)) {
+        wait_for_online();
+      } else {
+        gBrowser.removeCurrentTab();
+        Harness.finish();
+      }
+    });
+    tab.linkedBrowser.loadURI("http://example.com/");
+  }
+
+  is(count, 0, "No add-ons should have been installed");
+  try {
+    Services.prefs.setIntPref("network.proxy.type", proxyPrefValue);
+    Services.io.offline = false;
+  } catch (ex) {
+  }
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  wait_for_online();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_relative.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_relative.js
new file mode 100644
index 000000000..3599f47d1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_relative.js
@@ -0,0 +1,55 @@
+// ----------------------------------------------------------------------------
+// Tests that InstallTrigger deals with relative urls correctly.
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.finalContentEvent = "InstallComplete";
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: "amosigned.xpi",
+      IconURL: "icon.png",
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function confirm_install(window) {
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "XPI Test", "Should have seen the name");
+  is(items[0].url, TESTROOT + "amosigned.xpi", "Should have listed the correct url for the item");
+  is(items[0].icon, TESTROOT + "icon.png", "Should have listed the correct icon for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+const finish_test = Task.async(function*(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  const results = yield ContentTask.spawn(gBrowser.selectedBrowser, null, () => {
+    return {
+      return: content.document.getElementById("return").textContent,
+      status: content.document.getElementById("status").textContent,
+    }
+  })
+
+  is(results.return, "true", "installTrigger should have claimed success");
+  is(results.status, "0", "Callback should have seen a success");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_multipackage.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_multipackage.js
new file mode 100644
index 000000000..7341f3082
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_multipackage.js
@@ -0,0 +1,53 @@
+// ----------------------------------------------------------------------------
+// Tests installing an signed add-on by navigating directly to the url
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  gBrowser.selectedTab = gBrowser.addTab("about:blank");
+  BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser).then(() => {
+    gBrowser.loadURI(TESTROOT + "signed-multipackage.xpi");
+  });
+}
+
+function get_item(items, name) {
+  for (let item of items) {
+    if (item.name == name)
+      return item;
+  }
+  ok(false, "Item for " + name + " was not listed");
+  return null;
+}
+
+function confirm_install(window) {
+  let items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 2, "Should be 2 items listed in the confirmation dialog");
+
+  let item = get_item(items, "XPI Test");
+  if (item) {
+    is(item.signed, "false", "Should not have listed the item as signed");
+    is(item.icon, "", "Should have listed no icon for the item");
+  }
+
+  item = get_item(items, "Signed XPI Test");
+  if (item) {
+    is(item.cert, "(Object Signer)", "Should have seen the signer");
+    is(item.signed, "true", "Should have listed the item as signed");
+    is(item.icon, "", "Should have listed no icon for the item");
+  }
+
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 2, "2 Add-ons should have been successfully installed");
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_multiple.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_multiple.js
new file mode 100644
index 000000000..9dda1aaeb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_multiple.js
@@ -0,0 +1,72 @@
+// ----------------------------------------------------------------------------
+// Tests installing two signed add-ons in the same trigger works.
+// This verifies bug 453545
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Signed XPI": TESTROOT + "signed.xpi",
+    "Signed XPI 2": TESTROOT + "signed2.xpi",
+    "Signed XPI 3": TESTROOT + "signed-no-o.xpi",
+    "Signed XPI 4": TESTROOT + "signed-no-cn.xpi",
+    "Signed XPI 5": TESTROOT + "unsigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function get_item(items, url) {
+  for (let item of items) {
+    if (item.url == url)
+      return item;
+  }
+  ok(false, "Item for " + url + " was not listed");
+  return null;
+}
+
+function confirm_install(window) {
+
+  var sbs = Components.classes["@mozilla.org/intl/stringbundle;1"].
+                       getService(Components.interfaces.nsIStringBundleService);
+  var bundle = sbs.createBundle("chrome://mozapps/locale/xpinstall/xpinstallConfirm.properties");
+
+  var expectedIntroString = bundle.formatStringFromName("itemWarnIntroMultiple", ["5"], 1);
+
+  var introStringNode = window.document.getElementById("itemWarningIntro");
+  is(introStringNode.textContent, expectedIntroString, "Should have the correct intro string");
+
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 5, "Should be 5 items listed in the confirmation dialog");
+  let item = get_item(items, TESTROOT + "signed.xpi");
+  if (item) {
+    is(item.name, "Signed XPI Test", "Should have seen the name from the trigger list");
+    is(item.cert, "(Object Signer)", "Should have seen the signer");
+    is(item.signed, "true", "Should have listed the item as signed");
+  }
+  item = get_item(items, TESTROOT + "signed2.xpi");
+  if (item) {
+    is(item.name, "Signed XPI Test", "Should have seen the name from the trigger list");
+    is(item.cert, "(Object Signer)", "Should have seen the signer");
+    is(item.signed, "true", "Should have listed the item as signed");
+  }
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 5, "5 Add-ons should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_naming.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_naming.js
new file mode 100644
index 000000000..5c3f79045
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_naming.js
@@ -0,0 +1,67 @@
+// ----------------------------------------------------------------------------
+// Tests that the correct signer is presented for combinations of O and CN present.
+// The signed files have (when present) O=Mozilla Testing, CN=Object Signer
+// This verifies bug 372980
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Signed XPI (O and CN)": TESTROOT + "signed.xpi",
+    "Signed XPI (CN)": TESTROOT + "signed-no-o.xpi",
+    "Signed XPI (O)": TESTROOT + "signed-no-cn.xpi",
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function get_item(items, url) {
+  for (let item of items) {
+    if (item.url == url)
+      return item;
+  }
+  ok(false, "Item for " + url + " was not listed");
+  return null;
+}
+
+function confirm_install(window) {
+  let items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 3, "Should be 3 items listed in the confirmation dialog");
+  let item = get_item(items, TESTROOT + "signed.xpi");
+  if (item) {
+    is(item.name, "Signed XPI Test", "Should have seen the name from the trigger list");
+    is(item.cert, "(Object Signer)", "Should have seen the signer");
+    is(item.signed, "true", "Should have listed the item as signed");
+  }
+  item = get_item(items, TESTROOT + "signed-no-o.xpi");
+  if (item) {
+    is(item.name, "Signed XPI Test (No Org)", "Should have seen the name from the trigger list");
+    is(item.cert, "(Object Signer)", "Should have seen the signer");
+    is(item.signed, "true", "Should have listed the item as signed");
+  }
+  item = get_item(items, TESTROOT + "signed-no-cn.xpi");
+  if (item) {
+    is(item.name, "Signed XPI Test (No Common Name)", "Should have seen the name from the trigger list");
+    is(item.cert, "(Mozilla Testing)", "Should have seen the signer");
+    is(item.signed, "true", "Should have listed the item as signed");
+  }
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 3, "3 Add-ons should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_tampered.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_tampered.js
new file mode 100644
index 000000000..fc798d66a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_tampered.js
@@ -0,0 +1,33 @@
+// ----------------------------------------------------------------------------
+// Tests installing a signed add-on that has been tampered with after signing.
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.downloadFailedCallback = download_failed;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Tampered Signed XPI": TESTROOT + "signed-tampered.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function confirm_install(window) {
+  ok(false, "Should not offer to install");
+}
+
+function download_failed(install) {
+  is(install.error, AddonManager.ERROR_CORRUPT_FILE, "Install should fail");
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_trigger.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_trigger.js
new file mode 100644
index 000000000..8f1ae2d87
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_trigger.js
@@ -0,0 +1,41 @@
+// ----------------------------------------------------------------------------
+// Tests installing an signed add-on through an InstallTrigger call in web
+// content.
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Signed XPI": TESTROOT + "signed.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function confirm_install(window) {
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "Signed XPI Test", "Should have seen the name from the trigger list");
+  is(items[0].url, TESTROOT + "signed.xpi", "Should have listed the correct url for the item");
+  is(items[0].cert, "(Object Signer)", "Should have seen the signer");
+  is(items[0].signed, "true", "Should have listed the item as signed");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_untrusted.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_untrusted.js
new file mode 100644
index 000000000..d5fa9ae01
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_untrusted.js
@@ -0,0 +1,41 @@
+// ----------------------------------------------------------------------------
+// Tests installing an add-on signed by an untrusted certificate through an
+// InstallTrigger call in web content.
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Untrusted Signed XPI": TESTROOT + "signed-untrusted.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function confirm_install(window) {
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "Signed XPI Test", "Should have had the filename for the item name");
+  is(items[0].url, TESTROOT + "signed-untrusted.xpi", "Should have listed the correct url for the item");
+  is(items[0].icon, "", "Should have listed no icon for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_url.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_url.js
new file mode 100644
index 000000000..33cda6e4c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_signed_url.js
@@ -0,0 +1,34 @@
+// ----------------------------------------------------------------------------
+// Tests installing an signed add-on by navigating directly to the url
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  gBrowser.selectedTab = gBrowser.addTab("about:blank");
+  BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser).then(() => {
+    gBrowser.loadURI(TESTROOT + "signed.xpi");
+  });
+}
+
+function confirm_install(window) {
+  let items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "Signed XPI Test", "Should have had the name");
+  is(items[0].url, TESTROOT + "signed.xpi", "Should have listed the correct url for the item");
+  is(items[0].cert, "(Object Signer)", "Should have seen the signer");
+  is(items[0].signed, "true", "Should have listed the item as signed");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_softwareupdate.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_softwareupdate.js
new file mode 100644
index 000000000..16e20f3e9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_softwareupdate.js
@@ -0,0 +1,25 @@
+// ----------------------------------------------------------------------------
+// Tests that calling InstallTrigger.startSoftwareUpdate works
+function test() {
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "startsoftwareupdate.html? " + encodeURIComponent(TESTROOT + "amosigned.xpi"));
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_switchtab.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_switchtab.js
new file mode 100644
index 000000000..9bbb59400
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_switchtab.js
@@ -0,0 +1,49 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through an InstallTrigger call in web
+// content.
+var expectedTab = null;
+
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: TESTROOT + "amosigned.xpi",
+      IconURL: TESTROOT + "icon.png",
+      toString: function() { return this.URL; }
+    }
+  }));
+  expectedTab = gBrowser.addTab();
+  expectedTab.linkedBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function confirm_install(window) {
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "XPI Test", "Should have seen the name");
+  is(items[0].url, TESTROOT + "amosigned.xpi", "Should have listed the correct url for the item");
+  is(items[0].icon, TESTROOT + "icon.png", "Should have listed the correct icon for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+
+  is(gBrowser.selectedTab, expectedTab, "Should have switched to the installing tab.");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeTab(expectedTab);
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_trigger_redirect.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_trigger_redirect.js
new file mode 100644
index 000000000..9c0543602
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_trigger_redirect.js
@@ -0,0 +1,41 @@
+// ----------------------------------------------------------------------------
+// Tests that the InstallTrigger callback can redirect to a relative url.
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.finalContentEvent = "InstallComplete";
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "triggerredirect.html");
+}
+
+function confirm_install(window) {
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "XPI Test", "Should have seen the name");
+  is(items[0].url, TESTROOT + "amosigned.xpi", "Should have listed the correct url for the item");
+  is(items[0].icon, TESTROOT + "icon.png", "Should have listed the correct icon for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  var doc = gBrowser.contentDocument;
+  is(gBrowser.currentURI.spec, TESTROOT + "triggerredirect.html#foo", "Should have redirected");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_trigger.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_trigger.js
new file mode 100644
index 000000000..006879439
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_trigger.js
@@ -0,0 +1,56 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through an InstallTrigger call in web
+// content.
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.finalContentEvent = "InstallComplete";
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: TESTROOT + "unsigned.xpi",
+      IconURL: TESTROOT + "icon.png",
+      toString: function() { return this.URL; }
+    }
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function confirm_install(window) {
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "XPI Test", "Should have seen the name");
+  is(items[0].url, TESTROOT + "unsigned.xpi", "Should have listed the correct url for the item");
+  is(items[0].icon, TESTROOT + "icon.png", "Should have listed the correct icon for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+const finish_test = Task.async(function*(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  const results = yield ContentTask.spawn(gBrowser.selectedBrowser, null, () => {
+    return {
+      return: content.document.getElementById("return").textContent,
+      status: content.document.getElementById("status").textContent,
+    }
+  })
+
+  is(results.return, "true", "installTrigger should have claimed success");
+  is(results.status, "0", "Callback should have seen a success");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_trigger_iframe.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_trigger_iframe.js
new file mode 100644
index 000000000..b9df6615e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_trigger_iframe.js
@@ -0,0 +1,57 @@
+// ----------------------------------------------------------------------------
+// Test for bug 589598 - Ensure that installing through InstallTrigger
+// works in an iframe in web content.
+
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.finalContentEvent = "InstallComplete";
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var inner_url = encodeURIComponent(TESTROOT + "installtrigger.html?" + encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: TESTROOT + "unsigned.xpi",
+      IconURL: TESTROOT + "icon.png",
+      toString: function() { return this.URL; }
+    }
+  })));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger_frame.html?" + inner_url);
+}
+
+function confirm_install(window) {
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "XPI Test", "Should have seen the name");
+  is(items[0].url, TESTROOT + "unsigned.xpi", "Should have listed the correct url for the item");
+  is(items[0].icon, TESTROOT + "icon.png", "Should have listed the correct icon for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+const finish_test = Task.async(function*(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  const results = yield ContentTask.spawn(gBrowser.selectedBrowser, null, () => {
+    return {
+      return: content.frames[0].document.getElementById("return").textContent,
+      status: content.frames[0].document.getElementById("status").textContent,
+    }
+  })
+
+  is(results.return, "true", "installTrigger in iframe should have claimed success");
+  is(results.status, "0", "Callback in iframe should have seen a success");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+});
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_trigger_xorigin.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_trigger_xorigin.js
new file mode 100644
index 000000000..b0875fc99
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_trigger_xorigin.js
@@ -0,0 +1,38 @@
+// ----------------------------------------------------------------------------
+// Ensure that an inner frame from a different origin can't initiate an install
+
+var wasOriginBlocked = false;
+
+function test() {
+  Harness.installOriginBlockedCallback = install_blocked;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.finalContentEvent = "InstallComplete";
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  var inner_url = encodeURIComponent(TESTROOT + "installtrigger.html?" + encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": {
+      URL: TESTROOT + "amosigned.xpi",
+      IconURL: TESTROOT + "icon.png",
+      toString: function() { return this.URL; }
+    }
+  })));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT2 + "installtrigger_frame.html?" + inner_url);
+}
+
+function install_blocked(installInfo) {
+  wasOriginBlocked = true;
+}
+
+function finish_test(count) {
+  ok(wasOriginBlocked, "Should have been blocked due to the cross origin request.");
+
+  is(count, 0, "No add-ons should have been installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_url.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_url.js
new file mode 100644
index 000000000..e103dffd3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_unsigned_url.js
@@ -0,0 +1,35 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on by navigating directly to the url
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  gBrowser.selectedTab = gBrowser.addTab("about:blank");
+  BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser).then(() => {
+    gBrowser.loadURI(TESTROOT + "unsigned.xpi");
+  });
+}
+
+function confirm_install(window) {
+  let items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "XPI Test", "Should have had the filename for the item name");
+  is(items[0].url, TESTROOT + "unsigned.xpi", "Should have listed the correct url for the item");
+  is(items[0].icon, "", "Should have listed no icon for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+function finish_test(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist.js
new file mode 100644
index 000000000..ad3d645f5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist.js
@@ -0,0 +1,53 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through an InstallTrigger call in web
+// content. This should be blocked by the whitelist check.
+// This verifies bug 252830
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installBlockedCallback = allow_blocked;
+  Harness.installEndedCallback = install_ended;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function allow_blocked(installInfo) {
+  is(installInfo.browser, gBrowser.selectedBrowser, "Install should have been triggered by the right browser");
+  is(installInfo.originatingURI.spec, gBrowser.currentURI.spec, "Install should have been triggered by the right uri");
+  return true;
+}
+
+function confirm_install(window) {
+  var items = window.document.getElementById("itemList").childNodes;
+  is(items.length, 1, "Should only be 1 item listed in the confirmation dialog");
+  is(items[0].name, "XPI Test", "Should have seen the name from the trigger list");
+  is(items[0].url, TESTROOT + "amosigned.xpi", "Should have listed the correct url for the item");
+  is(items[0].signed, "false", "Should have listed the item as unsigned");
+  return true;
+}
+
+function install_ended(install, addon) {
+  install.cancel();
+}
+
+const finish_test = Task.async(function*(count) {
+  is(count, 1, "1 Add-on should have been successfully installed");
+
+  const results = yield ContentTask.spawn(gBrowser.selectedBrowser, null, () => {
+    return {
+      return: content.document.getElementById("return").textContent,
+      status: content.document.getElementById("status").textContent,
+    }
+  })
+
+  is(results.return, "false", "installTrigger should seen a failure");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+});
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist2.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist2.js
new file mode 100644
index 000000000..fd9e944e8
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist2.js
@@ -0,0 +1,31 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through an InstallTrigger call in web
+// content. This should be blocked by the whitelist check because the source
+// is not whitelisted, even though the target is.
+function test() {
+  Harness.installBlockedCallback = allow_blocked;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.org/"), "install", pm.ALLOW_ACTION);
+
+  var triggers = encodeURIComponent(JSON.stringify({
+    "Unsigned XPI": TESTROOT2 + "amosigned.xpi"
+  }));
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installtrigger.html?" + triggers);
+}
+
+function allow_blocked(installInfo) {
+  is(installInfo.browser, gBrowser.selectedBrowser, "Install should have been triggered by the right browser");
+  is(installInfo.originatingURI.spec, gBrowser.currentURI.spec, "Install should have been triggered by the right uri");
+  return false;
+}
+
+function finish_test() {
+  Services.perms.remove(makeURI("http://example.org"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist3.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist3.js
new file mode 100644
index 000000000..6f4306df6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist3.js
@@ -0,0 +1,28 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through a navigation. Should not be
+// blocked since the referer is whitelisted.
+var url = TESTROOT2 + "navigate.html?" + encodeURIComponent(TESTROOT + "amosigned.xpi");
+
+function test() {
+  Harness.installConfirmCallback = confirm_install;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.org/"), "install", pm.ALLOW_ACTION);
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(url);
+}
+
+function confirm_install(window) {
+  return false;
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  Services.perms.remove(makeURI("http://example.org"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist4.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist4.js
new file mode 100644
index 000000000..e4c47cda5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist4.js
@@ -0,0 +1,30 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through a navigation. Should be
+// blocked since the referer is not whitelisted even though the target is.
+var url = TESTROOT2 + "navigate.html?" + encodeURIComponent(TESTROOT + "amosigned.xpi");
+
+function test() {
+  Harness.installBlockedCallback = allow_blocked;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  var pm = Services.perms;
+  pm.add(makeURI("http://example.com/"), "install", pm.ALLOW_ACTION);
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(url);
+}
+
+function allow_blocked(installInfo) {
+  is(installInfo.browser, gBrowser.selectedBrowser, "Install should have been triggered by the right browser");
+  is(installInfo.originatingURI.spec, url, "Install should have been triggered by the right uri");
+  return false;
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  Services.perms.remove(makeURI("http://example.com"), "install");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist5.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist5.js
new file mode 100644
index 000000000..0a9333430
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist5.js
@@ -0,0 +1,25 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through a startSoftwareUpdate call in web
+// content. This should be blocked by the whitelist check.
+// This verifies bug 252830
+function test() {
+  Harness.installBlockedCallback = allow_blocked;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "startsoftwareupdate.html? " + encodeURIComponent(TESTROOT + "amosigned.xpi"));
+}
+
+function allow_blocked(installInfo) {
+  is(installInfo.browser, gBrowser.selectedBrowser, "Install should have been triggered by the right browser");
+  is(installInfo.originatingURI.spec, gBrowser.currentURI.spec, "Install should have been triggered by the right uri");
+  return false;
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist6.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist6.js
new file mode 100644
index 000000000..555f1e2fc
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist6.js
@@ -0,0 +1,25 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through an installChrome call in web
+// content. This should be blocked by the whitelist check.
+// This verifies bug 252830
+function test() {
+  Harness.installBlockedCallback = allow_blocked;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.loadURI(TESTROOT + "installchrome.html? " + encodeURIComponent(TESTROOT + "amosigned.xpi"));
+}
+
+function allow_blocked(installInfo) {
+  is(installInfo.browser, gBrowser.selectedBrowser, "Install should have been triggered by the right browser");
+  is(installInfo.originatingURI.spec, gBrowser.currentURI.spec, "Install should have been triggered by the right uri");
+  return false;
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
+// ----------------------------------------------------------------------------
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist7.js b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist7.js
new file mode 100644
index 000000000..96c60ac9e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/browser_whitelist7.js
@@ -0,0 +1,32 @@
+// ----------------------------------------------------------------------------
+// Tests installing an unsigned add-on through a direct install request from
+// web content. This should be blocked by the whitelist check because we disable
+// direct request whitelisting, even though the target URI is whitelisted.
+function test() {
+  Harness.installBlockedCallback = allow_blocked;
+  Harness.installsCompletedCallback = finish_test;
+  Harness.setup();
+
+  // Disable direct request whitelisting, installing should be blocked.
+  Services.prefs.setBoolPref("xpinstall.whitelist.directRequest", false);
+
+  gBrowser.selectedTab = gBrowser.addTab("about:blank");
+  BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser).then(() => {
+    gBrowser.loadURI(TESTROOT + "amosigned.xpi");
+  });
+}
+
+function allow_blocked(installInfo) {
+  ok(true, "Seen blocked");
+  return false;
+}
+
+function finish_test(count) {
+  is(count, 0, "No add-ons should have been installed");
+
+  Services.perms.remove(makeURI("http://example.org"), "install");
+  Services.prefs.clearUserPref("xpinstall.whitelist.directRequest");
+
+  gBrowser.removeCurrentTab();
+  Harness.finish();
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/bug540558.html b/toolkit/mozapps/webextensions/test/xpinstall/bug540558.html
new file mode 100644
index 000000000..286046d25
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/bug540558.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<!-- This page tests that window.InstallTrigger.install works -->
+
+<head>
+<title>InstallTrigger tests</title>
+<script type="text/javascript">
+function startInstall() {
+  window.InstallTrigger.install({
+    "Unsigned XPI": "amosigned.xpi"
+  });
+}
+</script>
+</head>
+<body onload="startInstall()">
+<p>InstallTrigger tests</p>
+<p id="return"></p>
+<p id="status"></p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/bug638292.html b/toolkit/mozapps/webextensions/test/xpinstall/bug638292.html
new file mode 100644
index 000000000..198207d4b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/bug638292.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<!-- This page tests InstallTrigger is defined in a new window -->
+
+<head>
+<title>InstallTrigger tests</title>
+</head>
+<body>
+<p>InstallTrigger tests</p>
+<p><a id="link1" target="_blank" href="enabled.html">Open window with target</a></p>
+<p><a id="link2" onclick="window.open(this.href); return false" href="enabled.html">Open window with JS</a></p>
+<p><a id="link3" href="enabled.html">Open window with middle-click</a></p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/bug645699.html b/toolkit/mozapps/webextensions/test/xpinstall/bug645699.html
new file mode 100644
index 000000000..8334c37c2
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/bug645699.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<head>
+<title>InstallTrigger tests</title>
+<script type="text/javascript">
+/* globals InstallTrigger */
+function startInstall() {
+  var whiteUrl = "https://example.org/";
+
+  try {
+    Object.defineProperty(window, "location", { value : { href : whiteUrl }	});
+    throw new Error("Object.defineProperty(window, 'location', ...) should have thrown");
+  } catch (exc) {
+    if (!(exc instanceof TypeError))
+      throw exc;
+  }
+  Object.defineProperty(document, "documentURIObject", { spec : { href : whiteUrl }	});
+
+  InstallTrigger.install({
+    "Unsigned XPI": "http://example.com/browser/toolkit/mozapps/extensions/test/xpinstall/amosigned.xpi"
+  });
+}
+</script>
+</head>
+<body onload="startInstall()">
+<p>InstallTrigger tests</p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/concurrent_installs.html b/toolkit/mozapps/webextensions/test/xpinstall/concurrent_installs.html
new file mode 100644
index 000000000..780409257
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/concurrent_installs.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<head>
+  <meta charset="utf-8">
+<title>Concurrent InstallTrigger tests</title>
+<script type="text/javascript">
+/* globals InstallTrigger */
+function installCallback(url, status) {
+  document.getElementById("status").textContent = status;
+
+  dump("Sending InstallComplete\n");
+  var event = new CustomEvent("InstallComplete", {detail: {loc: location.href, xpi: url}});
+  window.dispatchEvent(event);
+}
+
+function startInstall() {
+  var root = location.href.replace("concurrent_installs.html", "");
+  var triggers = {
+    "Unsigned XPI": root + "amosigned.xpi"
+  };
+  try {
+    document.getElementById("return").textContent = InstallTrigger.install(triggers, installCallback);
+  }
+  catch (e) {
+    document.getElementById("return").textContent = "exception";
+    throw e;
+  }
+}
+</script>
+</head>
+<body>
+<p>InstallTrigger tests</p>
+<button id="installnow" onclick="startInstall()">Click to install</button>
+<p id="return"></p>
+<p id="status"></p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/cookieRedirect.sjs b/toolkit/mozapps/webextensions/test/xpinstall/cookieRedirect.sjs
new file mode 100644
index 000000000..92bccd9ec
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/cookieRedirect.sjs
@@ -0,0 +1,24 @@
+// Simple script redirects to the query part of the uri if the cookie "xpinstall"
+// has the value "true", otherwise gives a 500 error.
+
+function handleRequest(request, response)
+{
+  let cookie = null;
+  if (request.hasHeader("Cookie")) {
+    let cookies = request.getHeader("Cookie").split(";");
+    for (let i = 0; i < cookies.length; i++) {
+      if (cookies[i].substring(0, 10) == "xpinstall=")
+        cookie = cookies[i].substring(10);
+    }
+  }
+
+  if (cookie == "true") {
+    response.setStatusLine(request.httpVersion, 302, "Found");
+    response.setHeader("Location", request.queryString);
+    response.write("See " + request.queryString);
+  }
+  else {
+    response.setStatusLine(request.httpVersion, 500, "Internal Server Error");
+    response.write("Invalid request");
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/corrupt.xpi b/toolkit/mozapps/webextensions/test/xpinstall/corrupt.xpi
new file mode 100644
index 000000000..35d7bd5e5
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/corrupt.xpi
@@ -0,0 +1 @@
+This is a corrupt zip file
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/empty.xpi b/toolkit/mozapps/webextensions/test/xpinstall/empty.xpi
new file mode 100644
index 000000000..74ed2b817
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/empty.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/enabled.html b/toolkit/mozapps/webextensions/test/xpinstall/enabled.html
new file mode 100644
index 000000000..370cde8fb
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/enabled.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<!-- This page will test if InstallTrigger seems to be enabled -->
+
+<head>
+<title>InstallTrigger tests</title>
+<script type="text/javascript">
+/* globals InstallTrigger */
+function init() {
+  document.getElementById("enabled").textContent = InstallTrigger.enabled() ? "true" : "false";
+  dump("Sending PageLoaded\n");
+  var event = new CustomEvent("PageLoaded");
+  window.dispatchEvent(event);
+}
+</script>
+</head>
+<body onload="init()">
+<p>InstallTrigger tests</p>
+<p id="enabled"></p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/hashRedirect.sjs b/toolkit/mozapps/webextensions/test/xpinstall/hashRedirect.sjs
new file mode 100644
index 000000000..324a092a3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/hashRedirect.sjs
@@ -0,0 +1,15 @@
+// Simple script redirects takes the query part of te request and splits it on
+// the | character. Anything before is included as the X-Target-Digest header
+// the latter part is used as the url to redirect to
+
+function handleRequest(request, response)
+{
+  let pos = request.queryString.indexOf("|");
+  let header = request.queryString.substring(0, pos);
+  let url = request.queryString.substring(pos + 1);
+
+  response.setStatusLine(request.httpVersion, 302, "Found");
+  response.setHeader("X-Target-Digest", header);
+  response.setHeader("Location", url);
+  response.write("See " + url);
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/head.js b/toolkit/mozapps/webextensions/test/xpinstall/head.js
new file mode 100644
index 000000000..197fe3fac
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/head.js
@@ -0,0 +1,434 @@
+const RELATIVE_DIR = "toolkit/mozapps/extensions/test/xpinstall/";
+
+const TESTROOT = "http://example.com/browser/" + RELATIVE_DIR;
+const TESTROOT2 = "http://example.org/browser/" + RELATIVE_DIR;
+const XPINSTALL_URL = "chrome://mozapps/content/xpinstall/xpinstallConfirm.xul";
+const PROMPT_URL = "chrome://global/content/commonDialog.xul";
+const ADDONS_URL = "chrome://mozapps/content/extensions/extensions.xul";
+const PREF_LOGGING_ENABLED = "extensions.logging.enabled";
+const PREF_INSTALL_REQUIREBUILTINCERTS = "extensions.install.requireBuiltInCerts";
+const PREF_INSTALL_REQUIRESECUREORIGIN = "extensions.install.requireSecureOrigin";
+const PREF_CUSTOM_CONFIRMATION_UI = "xpinstall.customConfirmationUI";
+const CHROME_NAME = "mochikit";
+
+function getChromeRoot(path) {
+  if (path === undefined) {
+    return "chrome://" + CHROME_NAME + "/content/browser/" + RELATIVE_DIR
+  }
+  return getRootDirectory(path);
+}
+
+function extractChromeRoot(path) {
+  var chromeRootPath = getChromeRoot(path);
+  var jar = getJar(chromeRootPath);
+  if (jar) {
+    var tmpdir = extractJarToTmp(jar);
+    return "file://" + tmpdir.path + "/";
+  }
+  return chromeRootPath;
+}
+
+Services.prefs.setBoolPref(PREF_CUSTOM_CONFIRMATION_UI, false);
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref(PREF_CUSTOM_CONFIRMATION_UI);
+});
+
+/**
+ * This is a test harness designed to handle responding to UI during the process
+ * of installing an XPI. A test can set callbacks to hear about specific parts
+ * of the sequence.
+ * Before use setup must be called and finish must be called afterwards.
+ */
+var Harness = {
+  // If set then the callback is called when an install is attempted and
+  // software installation is disabled.
+  installDisabledCallback: null,
+  // If set then the callback is called when an install is attempted and
+  // then canceled.
+  installCancelledCallback: null,
+  // If set then the callback will be called when an install's origin is blocked.
+  installOriginBlockedCallback: null,
+  // If set then the callback will be called when an install is blocked by the
+  // whitelist. The callback should return true to continue with the install
+  // anyway.
+  installBlockedCallback: null,
+  // If set will be called in the event of authentication being needed to get
+  // the xpi. Should return a 2 element array of username and password, or
+  // null to not authenticate.
+  authenticationCallback: null,
+  // If set this will be called to allow checking the contents of the xpinstall
+  // confirmation dialog. The callback should return true to continue the install.
+  installConfirmCallback: null,
+  // If set will be called when downloading of an item has begun.
+  downloadStartedCallback: null,
+  // If set will be called during the download of an item.
+  downloadProgressCallback: null,
+  // If set will be called when an xpi fails to download.
+  downloadFailedCallback: null,
+  // If set will be called when an xpi download is cancelled.
+  downloadCancelledCallback: null,
+  // If set will be called when downloading of an item has ended.
+  downloadEndedCallback: null,
+  // If set will be called when installation by the extension manager of an xpi
+  // item starts
+  installStartedCallback: null,
+  // If set will be called when an xpi fails to install.
+  installFailedCallback: null,
+  // If set will be called when each xpi item to be installed completes
+  // installation.
+  installEndedCallback: null,
+  // If set will be called when all triggered items are installed or the install
+  // is canceled.
+  installsCompletedCallback: null,
+  // If set the harness will wait for this DOM event before calling
+  // installsCompletedCallback
+  finalContentEvent: null,
+
+  waitingForEvent: false,
+  pendingCount: null,
+  installCount: null,
+  runningInstalls: null,
+
+  waitingForFinish: false,
+
+  // A unique value to return from the installConfirmCallback to indicate that
+  // the install UI shouldn't be closed automatically
+  leaveOpen: {},
+
+  // Setup and tear down functions
+  setup: function() {
+    if (!this.waitingForFinish) {
+      waitForExplicitFinish();
+      this.waitingForFinish = true;
+
+      Services.prefs.setBoolPref(PREF_INSTALL_REQUIRESECUREORIGIN, false);
+
+      Services.prefs.setBoolPref(PREF_LOGGING_ENABLED, true);
+      Services.obs.addObserver(this, "addon-install-started", false);
+      Services.obs.addObserver(this, "addon-install-disabled", false);
+      Services.obs.addObserver(this, "addon-install-origin-blocked", false);
+      Services.obs.addObserver(this, "addon-install-blocked", false);
+      Services.obs.addObserver(this, "addon-install-failed", false);
+      Services.obs.addObserver(this, "addon-install-complete", false);
+
+      AddonManager.addInstallListener(this);
+
+      Services.wm.addListener(this);
+
+      var self = this;
+      registerCleanupFunction(function() {
+        Services.prefs.clearUserPref(PREF_LOGGING_ENABLED);
+        Services.prefs.clearUserPref(PREF_INSTALL_REQUIRESECUREORIGIN);
+        Services.obs.removeObserver(self, "addon-install-started");
+        Services.obs.removeObserver(self, "addon-install-disabled");
+        Services.obs.removeObserver(self, "addon-install-origin-blocked");
+        Services.obs.removeObserver(self, "addon-install-blocked");
+        Services.obs.removeObserver(self, "addon-install-failed");
+        Services.obs.removeObserver(self, "addon-install-complete");
+
+        AddonManager.removeInstallListener(self);
+
+        Services.wm.removeListener(self);
+
+        AddonManager.getAllInstalls(function(aInstalls) {
+          is(aInstalls.length, 0, "Should be no active installs at the end of the test");
+          aInstalls.forEach(function(aInstall) {
+            info("Install for " + aInstall.sourceURI + " is in state " + aInstall.state);
+            aInstall.cancel();
+          });
+        });
+      });
+    }
+
+    this.installCount = 0;
+    this.pendingCount = 0;
+    this.runningInstalls = [];
+  },
+
+  finish: function() {
+    finish();
+  },
+
+  endTest: function() {
+    let callback = this.installsCompletedCallback;
+    let count = this.installCount;
+
+    is(this.runningInstalls.length, 0, "Should be no running installs left");
+    this.runningInstalls.forEach(function(aInstall) {
+      info("Install for " + aInstall.sourceURI + " is in state " + aInstall.state);
+    });
+
+    this.installOriginBlockedCallback = null;
+    this.installBlockedCallback = null;
+    this.authenticationCallback = null;
+    this.installConfirmCallback = null;
+    this.downloadStartedCallback = null;
+    this.downloadProgressCallback = null;
+    this.downloadCancelledCallback = null;
+    this.downloadFailedCallback = null;
+    this.downloadEndedCallback = null;
+    this.installStartedCallback = null;
+    this.installFailedCallback = null;
+    this.installEndedCallback = null;
+    this.installsCompletedCallback = null;
+    this.runningInstalls = null;
+
+    if (callback)
+      executeSoon(() => callback(count));
+  },
+
+  // Window open handling
+  windowReady: function(window) {
+    if (window.document.location.href == XPINSTALL_URL) {
+      if (this.installBlockedCallback)
+        ok(false, "Should have been blocked by the whitelist");
+      this.pendingCount = window.document.getElementById("itemList").childNodes.length;
+
+      // If there is a confirm callback then its return status determines whether
+      // to install the items or not. If not the test is over.
+      let result = true;
+      if (this.installConfirmCallback) {
+        result = this.installConfirmCallback(window);
+        if (result === this.leaveOpen)
+          return;
+      }
+
+      if (!result) {
+        window.document.documentElement.cancelDialog();
+      }
+      else {
+        // Initially the accept button is disabled on a countdown timer
+        var button = window.document.documentElement.getButton("accept");
+        button.disabled = false;
+        window.document.documentElement.acceptDialog();
+      }
+    }
+    else if (window.document.location.href == PROMPT_URL) {
+        var promptType = window.args.promptType;
+        switch (promptType) {
+          case "alert":
+          case "alertCheck":
+          case "confirmCheck":
+          case "confirm":
+          case "confirmEx":
+                window.document.documentElement.acceptDialog();
+                break;
+          case "promptUserAndPass":
+                  // This is a login dialog, hopefully an authentication prompt
+                  // for the xpi.
+                  if (this.authenticationCallback) {
+                    var auth = this.authenticationCallback();
+                    if (auth && auth.length == 2) {
+                      window.document.getElementById("loginTextbox").value = auth[0];
+                      window.document.getElementById("password1Textbox").value = auth[1];
+                      window.document.documentElement.acceptDialog();
+                    }
+                    else {
+                      window.document.documentElement.cancelDialog();
+                    }
+                  }
+                  else {
+                    window.document.documentElement.cancelDialog();
+                  }
+                break;
+          default:
+                ok(false, "prompt type " + promptType + " not handled in test.");
+                break;
+      }
+    }
+  },
+
+  // Install blocked handling
+
+  installDisabled: function(installInfo) {
+    ok(!!this.installDisabledCallback, "Installation shouldn't have been disabled");
+    if (this.installDisabledCallback)
+      this.installDisabledCallback(installInfo);
+    this.expectingCancelled = true;
+    this.expectingCancelled = false;
+    this.endTest();
+  },
+
+  installCancelled: function(installInfo) {
+    if (this.expectingCancelled)
+      return;
+
+    ok(!!this.installCancelledCallback, "Installation shouldn't have been cancelled");
+    if (this.installCancelledCallback)
+      this.installCancelledCallback(installInfo);
+    this.endTest();
+  },
+
+  installOriginBlocked: function(installInfo) {
+    ok(!!this.installOriginBlockedCallback, "Shouldn't have been blocked");
+    if (this.installOriginBlockedCallback)
+      this.installOriginBlockedCallback(installInfo);
+    this.endTest();
+  },
+
+  installBlocked: function(installInfo) {
+    ok(!!this.installBlockedCallback, "Shouldn't have been blocked by the whitelist");
+    if (this.installBlockedCallback && this.installBlockedCallback(installInfo)) {
+      this.installBlockedCallback = null;
+      installInfo.install();
+    }
+    else {
+      this.expectingCancelled = true;
+      installInfo.installs.forEach(function(install) {
+        install.cancel();
+      });
+      this.expectingCancelled = false;
+      this.endTest();
+    }
+  },
+
+  // nsIWindowMediatorListener
+
+  onWindowTitleChange: function(window, title) {
+  },
+
+  onOpenWindow: function(window) {
+    var domwindow = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
+                          .getInterface(Components.interfaces.nsIDOMWindow);
+    var self = this;
+    waitForFocus(function() {
+      self.windowReady(domwindow);
+    }, domwindow);
+  },
+
+  onCloseWindow: function(window) {
+  },
+
+  // Addon Install Listener
+
+  onNewInstall: function(install) {
+    this.runningInstalls.push(install);
+
+    if (this.finalContentEvent && !this.waitingForEvent) {
+      this.waitingForEvent = true;
+      info("Waiting for " + this.finalContentEvent);
+      let mm = gBrowser.selectedBrowser.messageManager;
+      mm.loadFrameScript(`data:,content.addEventListener("${this.finalContentEvent}", () => { sendAsyncMessage("Test:GotNewInstallEvent"); });`, false);
+      let win = gBrowser.contentWindow;
+      let listener = () => {
+        info("Saw " + this.finalContentEvent);
+        mm.removeMessageListener("Test:GotNewInstallEvent", listener);
+        this.waitingForEvent = false;
+        if (this.pendingCount == 0)
+          this.endTest();
+      }
+      mm.addMessageListener("Test:GotNewInstallEvent", listener);
+    }
+  },
+
+  onDownloadStarted: function(install) {
+    this.pendingCount++;
+    if (this.downloadStartedCallback)
+      this.downloadStartedCallback(install);
+  },
+
+  onDownloadProgress: function(install) {
+    if (this.downloadProgressCallback)
+      this.downloadProgressCallback(install);
+  },
+
+  onDownloadEnded: function(install) {
+    if (this.downloadEndedCallback)
+      this.downloadEndedCallback(install);
+  },
+
+  onDownloadCancelled: function(install) {
+    isnot(this.runningInstalls.indexOf(install), -1,
+          "Should only see cancelations for started installs");
+    this.runningInstalls.splice(this.runningInstalls.indexOf(install), 1);
+
+    if (this.downloadCancelledCallback)
+      this.downloadCancelledCallback(install);
+    this.checkTestEnded();
+  },
+
+  onDownloadFailed: function(install) {
+    if (this.downloadFailedCallback)
+      this.downloadFailedCallback(install);
+    this.checkTestEnded();
+  },
+
+  onInstallStarted: function(install) {
+    if (this.installStartedCallback)
+      this.installStartedCallback(install);
+  },
+
+  onInstallEnded: function(install, addon) {
+    if (this.installEndedCallback)
+      this.installEndedCallback(install, addon);
+    this.installCount++;
+    this.checkTestEnded();
+  },
+
+  onInstallFailed: function(install) {
+    if (this.installFailedCallback)
+      this.installFailedCallback(install);
+    this.checkTestEnded();
+  },
+
+  checkTestEnded: function() {
+    if (--this.pendingCount == 0 && !this.waitingForEvent)
+      this.endTest();
+  },
+
+  // nsIObserver
+
+  observe: function(subject, topic, data) {
+    var installInfo = subject.QueryInterface(Components.interfaces.amIWebInstallInfo);
+    switch (topic) {
+    case "addon-install-started":
+      is(this.runningInstalls.length, installInfo.installs.length,
+         "Should have seen the expected number of installs started");
+      break;
+    case "addon-install-disabled":
+      this.installDisabled(installInfo);
+      break;
+    case "addon-install-cancelled":
+      this.installCancelled(installInfo);
+      break;
+    case "addon-install-origin-blocked":
+      this.installOriginBlocked(installInfo);
+      break;
+    case "addon-install-blocked":
+      this.installBlocked(installInfo);
+      break;
+    case "addon-install-failed":
+      installInfo.installs.forEach(function(aInstall) {
+        isnot(this.runningInstalls.indexOf(aInstall), -1,
+              "Should only see failures for started installs");
+
+        ok(aInstall.error != 0 || aInstall.addon.appDisabled,
+           "Failed installs should have an error or be appDisabled");
+
+        this.runningInstalls.splice(this.runningInstalls.indexOf(aInstall), 1);
+      }, this);
+      break;
+    case "addon-install-complete":
+      installInfo.installs.forEach(function(aInstall) {
+        isnot(this.runningInstalls.indexOf(aInstall), -1,
+              "Should only see completed events for started installs");
+
+        is(aInstall.error, 0, "Completed installs should have no error");
+        ok(!aInstall.appDisabled, "Completed installs should not be appDisabled");
+
+        // Complete installs are either in the INSTALLED or CANCELLED state
+        // since the test may cancel installs the moment they complete.
+        ok(aInstall.state == AddonManager.STATE_INSTALLED ||
+           aInstall.state == AddonManager.STATE_CANCELLED,
+           "Completed installs should be in the right state");
+
+        this.runningInstalls.splice(this.runningInstalls.indexOf(aInstall), 1);
+      }, this);
+      break;
+    }
+  },
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
+                                         Ci.nsIWindowMediatorListener,
+                                         Ci.nsISupports])
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/incompatible.xpi b/toolkit/mozapps/webextensions/test/xpinstall/incompatible.xpi
new file mode 100644
index 000000000..262ed38a7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/incompatible.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/installchrome.html b/toolkit/mozapps/webextensions/test/xpinstall/installchrome.html
new file mode 100644
index 000000000..6abee2ef3
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/installchrome.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<!-- This page will accept a url as the uri query and pass it to InstallTrigger.installChrome -->
+
+<head>
+<title>InstallTrigger tests</title>
+<script type="text/javascript">
+/* globals InstallTrigger */
+function startInstall() {
+  InstallTrigger.installChrome(InstallTrigger.SKIN,
+                               decodeURIComponent(document.location.search.substring(1)),
+                               "test");
+}
+</script>
+</head>
+<body onload="startInstall()">
+<p>InstallTrigger tests</p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/installtrigger.html b/toolkit/mozapps/webextensions/test/xpinstall/installtrigger.html
new file mode 100644
index 000000000..65cab1ef1
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/installtrigger.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<!-- This page will accept some json as the uri query and pass it to InstallTrigger.install -->
+
+<head>
+<title>InstallTrigger tests</title>
+<script type="text/javascript">
+/* globals InstallTrigger */
+function installCallback(url, status) {
+  document.getElementById("status").textContent = status;
+
+  dump("Sending InstallComplete\n");
+  var event = new CustomEvent("InstallComplete");
+  var target = window.parent ? window.parent : window;
+  target.dispatchEvent(event);
+}
+
+function startInstall() {
+  var event = new CustomEvent("InstallTriggered");
+  var text = decodeURIComponent(document.location.search.substring(1));
+  var triggers = JSON.parse(text);
+  try {
+    document.getElementById("return").textContent = InstallTrigger.install(triggers, installCallback);
+    dump("Sending InstallTriggered\n");
+    window.dispatchEvent(event);
+  }
+  catch (e) {
+    document.getElementById("return").textContent = "exception";
+    dump("Sending InstallTriggered\n");
+    window.dispatchEvent(event);
+    throw e;
+  }
+}
+</script>
+</head>
+<body onload="startInstall()">
+<p>InstallTrigger tests</p>
+<p id="return"></p>
+<p id="status"></p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/installtrigger_frame.html b/toolkit/mozapps/webextensions/test/xpinstall/installtrigger_frame.html
new file mode 100644
index 000000000..2b302642e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/installtrigger_frame.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<!-- This page will accept some url as the uri query and load it in
+     an inner iframe, which will run InstallTrigger.install -->
+
+<head>
+<title>InstallTrigger frame tests</title>
+<script type="text/javascript">
+function prepChild() {
+  // Pass our parameters over to the child
+  var child = window.frames[0];
+  var url = decodeURIComponent(document.location.search.substr(1));
+  child.location = url;
+}
+</script>
+</head>
+<body onload="prepChild()">
+
+<iframe src="about:blank">
+</iframe>
+
+<p>InstallTrigger tests</p>
+<p id="return"></p>
+<p id="status"></p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/multipackage.xpi b/toolkit/mozapps/webextensions/test/xpinstall/multipackage.xpi
new file mode 100644
index 000000000..d52f28c28
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/multipackage.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/navigate.html b/toolkit/mozapps/webextensions/test/xpinstall/navigate.html
new file mode 100644
index 000000000..5a6903eb9
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/navigate.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<!-- This page will accept some url as the uri query and navigate to it by
+     clicking a link -->
+
+<head>
+<title>Navigation tests</title>
+<script type="text/javascript">
+function navigate() {
+  // Pass our parameters over to the child
+  var child = window.frames[0];
+  var url = decodeURIComponent(document.location.search.substr(1));
+  var link = document.getElementById("link");
+  link.href = url;
+  link.click();
+}
+</script>
+</head>
+<body onload="navigate()">
+
+<p><a id="link">Test Link</a></p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/redirect.sjs b/toolkit/mozapps/webextensions/test/xpinstall/redirect.sjs
new file mode 100644
index 000000000..d248bfbc7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/redirect.sjs
@@ -0,0 +1,45 @@
+// Script has two modes based on the query string. If the mode is "setup" then
+// parameters from the query string configure the redirection. If the mode is
+// "redirect" then a redirect is returned
+
+function handleRequest(request, response)
+{
+  let parts = request.queryString.split("&");
+  let settings = {};
+
+  parts.forEach(function(aString) {
+    let [k, v] = aString.split("=");
+    settings[k] = decodeURIComponent(v);
+  })
+
+  if (settings.mode == "setup") {
+    delete settings.mode;
+
+    // Object states must be an nsISupports
+    var state = {
+      settings: settings,
+      QueryInterface: function(aIid) {
+        if (aIid.equals(Components.interfaces.nsISupports))
+          return settings;
+        throw Components.results.NS_ERROR_NO_INTERFACE;
+      }
+    }
+    state.wrappedJSObject = state;
+
+    setObjectState("xpinstall-redirect-settings", state);
+    response.setStatusLine(request.httpVersion, 200, "Ok");
+    response.setHeader("Content-Type", "text/plain");
+    response.write("Setup complete");
+  }
+  else if (settings.mode == "redirect") {
+    getObjectState("xpinstall-redirect-settings", function(aObject) {
+      settings = aObject.wrappedJSObject.settings;
+    });
+
+    response.setStatusLine(request.httpVersion, 302, "Found");
+    for (var name in settings) {
+      response.setHeader(name, settings[name]);
+    }
+    response.write("Done");
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/restartless-unsigned.xpi b/toolkit/mozapps/webextensions/test/xpinstall/restartless-unsigned.xpi
new file mode 100644
index 000000000..8e76bd052
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/restartless-unsigned.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/restartless.xpi b/toolkit/mozapps/webextensions/test/xpinstall/restartless.xpi
new file mode 100644
index 000000000..9fee8f60b
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/restartless.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/signed-multipackage.xpi b/toolkit/mozapps/webextensions/test/xpinstall/signed-multipackage.xpi
new file mode 100644
index 000000000..11fbe1861
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/signed-multipackage.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/signed-no-cn.xpi b/toolkit/mozapps/webextensions/test/xpinstall/signed-no-cn.xpi
new file mode 100644
index 000000000..90d3a3ce6
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/signed-no-cn.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/signed-no-o.xpi b/toolkit/mozapps/webextensions/test/xpinstall/signed-no-o.xpi
new file mode 100644
index 000000000..19b754038
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/signed-no-o.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/signed-tampered.xpi b/toolkit/mozapps/webextensions/test/xpinstall/signed-tampered.xpi
new file mode 100644
index 000000000..8c951881e
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/signed-tampered.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/signed-untrusted.xpi b/toolkit/mozapps/webextensions/test/xpinstall/signed-untrusted.xpi
new file mode 100644
index 000000000..09789d189
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/signed-untrusted.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/signed.xpi b/toolkit/mozapps/webextensions/test/xpinstall/signed.xpi
new file mode 100644
index 000000000..bd7f78b7c
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/signed.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/signed2.xpi b/toolkit/mozapps/webextensions/test/xpinstall/signed2.xpi
new file mode 100644
index 000000000..085efbbf7
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/signed2.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/slowinstall.sjs b/toolkit/mozapps/webextensions/test/xpinstall/slowinstall.sjs
new file mode 100644
index 000000000..5f767a8f4
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/slowinstall.sjs
@@ -0,0 +1,101 @@
+const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/osfile.jsm");
+Cu.import("resource://gre/modules/NetUtil.jsm");
+
+const RELATIVE_PATH = "browser/toolkit/mozapps/extensions/test/xpinstall"
+const NOTIFICATION_TOPIC = "slowinstall-complete";
+
+/**
+ * Helper function to create a JS object representing the url parameters from
+ * the request's queryString.
+ *
+ * @param  aQueryString
+ *         The request's query string.
+ * @return A JS object representing the url parameters from the request's
+ *         queryString.
+ */
+function parseQueryString(aQueryString) {
+  var paramArray = aQueryString.split("&");
+  var regex = /^([^=]+)=(.*)$/;
+  var params = {};
+  for (var i = 0, sz = paramArray.length; i < sz; i++) {
+    var match = regex.exec(paramArray[i]);
+    if (!match)
+      throw "Bad parameter in queryString!  '" + paramArray[i] + "'";
+    params[decodeURIComponent(match[1])] = decodeURIComponent(match[2]);
+  }
+
+  return params;
+}
+
+function handleRequest(aRequest, aResponse) {
+  let id = +getState("ID");
+  setState("ID", "" + (id + 1));
+
+  function LOG(str) {
+    dump("slowinstall.sjs[" + id + "]: " + str + "\n");
+  }
+
+  aResponse.setStatusLine(aRequest.httpVersion, 200, "OK");
+
+  var params = { };
+  if (aRequest.queryString)
+    params = parseQueryString(aRequest.queryString);
+
+  if (params.file) {
+    let xpiFile = "";
+
+    function complete_download() {
+      LOG("Completing download");
+      downloadPaused = false;
+
+      try {
+        // Doesn't seem to be a sane way to read using OS.File and write to an
+        // nsIOutputStream so here we are.
+        let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+        file.initWithPath(xpiFile);
+        let stream = Cc["@mozilla.org/network/file-input-stream;1"].
+                     createInstance(Ci.nsIFileInputStream);
+        stream.init(file, -1, -1, stream.DEFER_OPEN + stream.CLOSE_ON_EOF);
+
+        NetUtil.asyncCopy(stream, aResponse.bodyOutputStream, () => {
+          LOG("Download complete");
+          aResponse.finish();
+        });
+      }
+      catch (e) {
+        LOG("Exception " + e);
+      }
+    }
+
+    let waitForComplete = new Promise(resolve => {
+      function complete() {
+        Services.obs.removeObserver(complete, NOTIFICATION_TOPIC);
+        resolve();
+      }
+
+      Services.obs.addObserver(complete, NOTIFICATION_TOPIC, false);
+    });
+
+    aResponse.processAsync();
+
+    OS.File.getCurrentDirectory().then(dir => {
+      xpiFile = OS.Path.join(dir, ...RELATIVE_PATH.split("/"), params.file);
+      LOG("Starting slow download of " + xpiFile);
+
+      OS.File.stat(xpiFile).then(info => {
+        aResponse.setHeader("Content-Type", "binary/octet-stream");
+        aResponse.setHeader("Content-Length", info.size.toString());
+
+        LOG("Download paused");
+        waitForComplete.then(complete_download);
+      });
+    });
+  }
+  else if (params.continue) {
+    dump("slowinstall.sjs: Received signal to complete all current downloads.\n");
+    Services.obs.notifyObservers(null, NOTIFICATION_TOPIC, null);
+  }
+}
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/startsoftwareupdate.html b/toolkit/mozapps/webextensions/test/xpinstall/startsoftwareupdate.html
new file mode 100644
index 000000000..50083ca90
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/startsoftwareupdate.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<!-- This page will accept a url as the uri query and pass it to InstallTrigger.startSoftwareUpdate -->
+
+<head>
+<title>InstallTrigger tests</title>
+<script type="text/javascript">
+/* globals InstallTrigger */
+function startInstall() {
+  InstallTrigger.startSoftwareUpdate(decodeURIComponent(document.location.search.substring(1)));
+}
+</script>
+</head>
+<body onload="startInstall()">
+<p>InstallTrigger tests</p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/theme.xpi b/toolkit/mozapps/webextensions/test/xpinstall/theme.xpi
new file mode 100644
index 000000000..74e650b4a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/theme.xpi
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/triggerredirect.html b/toolkit/mozapps/webextensions/test/xpinstall/triggerredirect.html
new file mode 100644
index 000000000..42e0e1cd0
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/triggerredirect.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html>
+
+<!-- This page will attempt an install and then try to load a new page in the tab -->
+
+<head>
+<title>InstallTrigger tests</title>
+<script type="text/javascript">
+/* globals InstallTrigger */
+function installCallback(url, status) {
+  document.location = "#foo";
+
+  dump("Sending InstallComplete\n");
+  var event = new CustomEvent("InstallComplete");
+  window.dispatchEvent(event);
+}
+
+function startInstall() {
+  InstallTrigger.install({
+    "Unsigned XPI": {
+      URL: "amosigned.xpi",
+      IconURL: "icon.png",
+      toString: function() { return this.URL; }
+    }
+  }, installCallback);
+}
+</script>
+</head>
+<body onload="startInstall()">
+<p>InstallTrigger tests</p>
+<p id="return"></p>
+<p id="status"></p>
+</body>
+</html>
diff --git a/toolkit/mozapps/webextensions/test/xpinstall/unsigned.xpi b/toolkit/mozapps/webextensions/test/xpinstall/unsigned.xpi
new file mode 100644
index 000000000..51b00475a
--- /dev/null
+++ b/toolkit/mozapps/webextensions/test/xpinstall/unsigned.xpi