Revert "Add Basilisk"

This reverts commit e72ef92b5bdc43cd2584198e2e54e951b70299e8.

1 files changed, 0 insertions, 2831 deletions

diff --git a/application/basilisk/components/nsBrowserGlue.js b/application/basilisk/components/nsBrowserGlue.js
deleted file mode 100644
index b4868f330..000000000
--- a/application/basilisk/components/nsBrowserGlue.js
+++ /dev/null
@@ -1,2831 +0,0 @@
-/* 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/. */
-
-const Ci = Components.interfaces;
-const Cc = Components.classes;
-const Cr = Components.results;
-const Cu = Components.utils;
-
-const XULNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/AsyncPrefs.jsm");
-
-XPCOMUtils.defineLazyServiceGetter(this, "WindowsUIUtils", "@mozilla.org/windows-ui-utils;1", "nsIWindowsUIUtils");
-XPCOMUtils.defineLazyServiceGetter(this, "AlertsService", "@mozilla.org/alerts-service;1", "nsIAlertsService");
-
-// lazy module getters
-
-/* global AboutHome:false, AboutNewTab:false, AddonManager:false, AddonWatcher:false,
-          AsyncShutdown:false, AutoCompletePopup:false, BookmarkHTMLUtils:false,
-          BookmarkJSONUtils:false, BrowserUITelemetry:false, BrowserUsageTelemetry:false,
-          ContentClick:false, ContentPrefServiceParent:false, ContentSearch:false,
-          DateTimePickerHelper:false, DirectoryLinksProvider:false, Feeds:false,
-          FileUtils:false, FormValidationHandler:false, Integration:false,
-          LightweightThemeManager:false, LoginHelper:false, LoginManagerParent:false,
-          NetUtil:false, NewTabMessages:false, NewTabUtils:false, OS:false,
-          PageThumbs:false, PdfJs:false, PermissionUI:false, PlacesBackups:false,
-          PlacesUtils:false, PluralForm:false, PrivateBrowsingUtils:false,
-          ProcessHangMonitor:false, ReaderParent:false, RecentWindow:false,
-          RemotePrompt:false, SelfSupportBackend:false, SessionStore:false,
-          ShellService:false, SimpleServiceDiscovery:false, TabCrashHandler:false,
-          Task:false, UITour:false, WebChannel:false,
-          WindowsRegistry:false, webrtcUI:false */
-
-/**
- * IF YOU ADD OR REMOVE FROM THIS LIST, PLEASE UPDATE THE LIST ABOVE AS WELL.
- * XXX Bug 1325373 is for making eslint detect these automatically.
- */
-
-[
-  ["AboutHome", "resource:///modules/AboutHome.jsm"],
-  ["AboutNewTab", "resource:///modules/AboutNewTab.jsm"],
-  ["AddonManager", "resource://gre/modules/AddonManager.jsm"],
-  ["AddonWatcher", "resource://gre/modules/AddonWatcher.jsm"],
-  ["AsyncShutdown", "resource://gre/modules/AsyncShutdown.jsm"],
-  ["AutoCompletePopup", "resource://gre/modules/AutoCompletePopup.jsm"],
-  ["BookmarkHTMLUtils", "resource://gre/modules/BookmarkHTMLUtils.jsm"],
-  ["BookmarkJSONUtils", "resource://gre/modules/BookmarkJSONUtils.jsm"],
-  ["BrowserUITelemetry", "resource:///modules/BrowserUITelemetry.jsm"],
-  ["BrowserUsageTelemetry", "resource:///modules/BrowserUsageTelemetry.jsm"],
-  ["ContentClick", "resource:///modules/ContentClick.jsm"],
-  ["ContentPrefServiceParent", "resource://gre/modules/ContentPrefServiceParent.jsm"],
-  ["ContentSearch", "resource:///modules/ContentSearch.jsm"],
-  ["DateTimePickerHelper", "resource://gre/modules/DateTimePickerHelper.jsm"],
-  ["DirectoryLinksProvider", "resource:///modules/DirectoryLinksProvider.jsm"],
-  ["ExtensionsUI", "resource:///modules/ExtensionsUI.jsm"],
-  ["Feeds", "resource:///modules/Feeds.jsm"],
-  ["FileUtils", "resource://gre/modules/FileUtils.jsm"],
-  ["FormValidationHandler", "resource:///modules/FormValidationHandler.jsm"],
-  ["Integration", "resource://gre/modules/Integration.jsm"],
-  ["LightweightThemeManager", "resource://gre/modules/LightweightThemeManager.jsm"],
-  ["LoginHelper", "resource://gre/modules/LoginHelper.jsm"],
-  ["LoginManagerParent", "resource://gre/modules/LoginManagerParent.jsm"],
-  ["NetUtil", "resource://gre/modules/NetUtil.jsm"],
-  ["NewTabMessages", "resource:///modules/NewTabMessages.jsm"],
-  ["NewTabUtils", "resource://gre/modules/NewTabUtils.jsm"],
-  ["OS", "resource://gre/modules/osfile.jsm"],
-  ["PageThumbs", "resource://gre/modules/PageThumbs.jsm"],
-  ["PdfJs", "resource://pdf.js/PdfJs.jsm"],
-  ["PermissionUI", "resource:///modules/PermissionUI.jsm"],
-  ["PlacesBackups", "resource://gre/modules/PlacesBackups.jsm"],
-  ["PlacesUtils", "resource://gre/modules/PlacesUtils.jsm"],
-  ["PluralForm", "resource://gre/modules/PluralForm.jsm"],
-  ["PrivateBrowsingUtils", "resource://gre/modules/PrivateBrowsingUtils.jsm"],
-  ["ProcessHangMonitor", "resource:///modules/ProcessHangMonitor.jsm"],
-  ["ReaderParent", "resource:///modules/ReaderParent.jsm"],
-  ["RecentWindow", "resource:///modules/RecentWindow.jsm"],
-  ["RemotePrompt", "resource:///modules/RemotePrompt.jsm"],
-  ["SelfSupportBackend", "resource:///modules/SelfSupportBackend.jsm"],
-  ["SessionStore", "resource:///modules/sessionstore/SessionStore.jsm"],
-  ["ShellService", "resource:///modules/ShellService.jsm"],
-  ["SimpleServiceDiscovery", "resource://gre/modules/SimpleServiceDiscovery.jsm"],
-  ["TabCrashHandler", "resource:///modules/ContentCrashHandlers.jsm"],
-  ["Task", "resource://gre/modules/Task.jsm"],
-  ["UITour", "resource:///modules/UITour.jsm"],
-  ["UserAgentOverrides", "resource://gre/modules/UserAgentOverrides.jsm"],
-  ["WebChannel", "resource://gre/modules/WebChannel.jsm"],
-  ["WindowsRegistry", "resource://gre/modules/WindowsRegistry.jsm"],
-  ["webrtcUI", "resource:///modules/webrtcUI.jsm"],
-].forEach(([name, resource]) => XPCOMUtils.defineLazyModuleGetter(this, name, resource));
-
-XPCOMUtils.defineLazyGetter(this, "gBrandBundle", function() {
-  return Services.strings.createBundle("chrome://branding/locale/brand.properties");
-});
-
-XPCOMUtils.defineLazyGetter(this, "gBrowserBundle", function() {
-  return Services.strings.createBundle("chrome://browser/locale/browser.properties");
-});
-
-// Seconds of idle before trying to create a bookmarks backup.
-const BOOKMARKS_BACKUP_IDLE_TIME_SEC = 8 * 60;
-// Minimum interval between backups.  We try to not create more than one backup
-// per interval.
-const BOOKMARKS_BACKUP_MIN_INTERVAL_DAYS = 1;
-// Maximum interval between backups.  If the last backup is older than these
-// days we will try to create a new one more aggressively.
-const BOOKMARKS_BACKUP_MAX_INTERVAL_DAYS = 3;
-
-// Factory object
-const BrowserGlueServiceFactory = {
-  _instance: null,
-  createInstance: function BGSF_createInstance(outer, iid) {
-    if (outer != null)
-      throw Components.results.NS_ERROR_NO_AGGREGATION;
-    return this._instance == null ?
-      this._instance = new BrowserGlue() : this._instance;
-  }
-};
-
-// Constructor
-
-function BrowserGlue() {
-  XPCOMUtils.defineLazyServiceGetter(this, "_idleService",
-                                     "@mozilla.org/widget/idleservice;1",
-                                     "nsIIdleService");
-
-  XPCOMUtils.defineLazyGetter(this, "_distributionCustomizer", function() {
-                                Cu.import("resource:///modules/distribution.js");
-                                return new DistributionCustomizer();
-                              });
-
-  XPCOMUtils.defineLazyGetter(this, "_sanitizer",
-    function() {
-      let sanitizerScope = {};
-      Services.scriptloader.loadSubScript("chrome://browser/content/sanitize.js", sanitizerScope);
-      return sanitizerScope.Sanitizer;
-    });
-
-  this._init();
-}
-
-/*
- * OS X has the concept of zero-window sessions and therefore ignores the
- * browser-lastwindow-close-* topics.
- */
-#ifdef XP_MACOSX
-const OBSERVE_LASTWINDOW_CLOSE_TOPICS = false;
-#else
-const OBSERVE_LASTWINDOW_CLOSE_TOPICS = true;
-#endif
-
-BrowserGlue.prototype = {
-  _saveSession: false,
-  _isPlacesInitObserver: false,
-  _isPlacesLockedObserver: false,
-  _isPlacesShutdownObserver: false,
-  _isPlacesDatabaseLocked: false,
-  _migrationImportsDefaultBookmarks: false,
-
-  _setPrefToSaveSession: function BG__setPrefToSaveSession(aForce) {
-    if (!this._saveSession && !aForce)
-      return;
-
-    Services.prefs.setBoolPref("browser.sessionstore.resume_session_once", true);
-
-    // This method can be called via [NSApplication terminate:] on Mac, which
-    // ends up causing prefs not to be flushed to disk, so we need to do that
-    // explicitly here. See bug 497652.
-    Services.prefs.savePrefFile(null);
-  },
-
-  _setSyncAutoconnectDelay: function BG__setSyncAutoconnectDelay() {
-    // Assume that a non-zero value for services.sync.autoconnectDelay should override
-    if (Services.prefs.prefHasUserValue("services.sync.autoconnectDelay")) {
-      let prefDelay = Services.prefs.getIntPref("services.sync.autoconnectDelay");
-
-      if (prefDelay > 0)
-        return;
-    }
-
-    // delays are in seconds
-    const MAX_DELAY = 300;
-    let delay = 3;
-    let browserEnum = Services.wm.getEnumerator("navigator:browser");
-    while (browserEnum.hasMoreElements()) {
-      delay += browserEnum.getNext().gBrowser.tabs.length;
-    }
-    delay = delay <= MAX_DELAY ? delay : MAX_DELAY;
-
-    Cu.import("resource://services-sync/main.js");
-    Weave.Service.scheduler.delayedAutoConnect(delay);
-  },
-
-  // nsIObserver implementation
-  observe: function BG_observe(subject, topic, data) {
-    switch (topic) {
-      case "notifications-open-settings":
-        this._openPreferences("content");
-        break;
-      case "prefservice:after-app-defaults":
-        this._onAppDefaults();
-        break;
-      case "final-ui-startup":
-        this._finalUIStartup();
-        break;
-      case "browser-delayed-startup-finished":
-        this._onFirstWindowLoaded(subject);
-        Services.obs.removeObserver(this, "browser-delayed-startup-finished");
-        break;
-      case "sessionstore-windows-restored":
-        this._onWindowsRestored();
-        break;
-      case "browser:purge-session-history":
-        // reset the console service's error buffer
-        Services.console.logStringMessage(null); // clear the console (in case it's open)
-        Services.console.reset();
-        break;
-      case "restart-in-safe-mode":
-        this._onSafeModeRestart();
-        break;
-      case "quit-application-requested":
-        this._onQuitRequest(subject, data);
-        break;
-      case "quit-application-granted":
-        this._onQuitApplicationGranted();
-        break;
-      case "browser-lastwindow-close-requested":
-        if (OBSERVE_LASTWINDOW_CLOSE_TOPICS) {
-          // The application is not actually quitting, but the last full browser
-          // window is about to be closed.
-          this._onQuitRequest(subject, "lastwindow");
-        }
-        break;
-      case "browser-lastwindow-close-granted":
-        if (OBSERVE_LASTWINDOW_CLOSE_TOPICS) {
-          this._setPrefToSaveSession();
-        }
-        break;
-      case "weave:service:ready":
-        this._setSyncAutoconnectDelay();
-        break;
-      case "fxaccounts:onverified":
-        this._showSyncStartedDoorhanger();
-        break;
-      case "fxaccounts:device_connected":
-        this._onDeviceConnected(data);
-        break;
-      case "fxaccounts:device_disconnected":
-        this._onDeviceDisconnected();
-        break;
-      case "weave:engine:clients:display-uris":
-        this._onDisplaySyncURIs(subject);
-        break;
-      case "session-save":
-        this._setPrefToSaveSession(true);
-        subject.QueryInterface(Ci.nsISupportsPRBool);
-        subject.data = true;
-        break;
-      case "places-init-complete":
-        if (!this._migrationImportsDefaultBookmarks)
-          this._initPlaces(false);
-
-        Services.obs.removeObserver(this, "places-init-complete");
-        this._isPlacesInitObserver = false;
-        // no longer needed, since history was initialized completely.
-        Services.obs.removeObserver(this, "places-database-locked");
-        this._isPlacesLockedObserver = false;
-        break;
-      case "places-database-locked":
-        this._isPlacesDatabaseLocked = true;
-        // Stop observing, so further attempts to load history service
-        // will not show the prompt.
-        Services.obs.removeObserver(this, "places-database-locked");
-        this._isPlacesLockedObserver = false;
-        break;
-      case "idle":
-        this._backupBookmarks();
-        break;
-      case "distribution-customization-complete":
-        Services.obs.removeObserver(this, "distribution-customization-complete");
-        // Customization has finished, we don't need the customizer anymore.
-        delete this._distributionCustomizer;
-        break;
-      case "browser-glue-test": // used by tests
-        if (data == "post-update-notification") {
-          if (Services.prefs.prefHasUserValue("app.update.postupdate"))
-            this._showUpdateNotification();
-        } else if (data == "force-ui-migration") {
-          this._migrateUI();
-        } else if (data == "force-distribution-customization") {
-          this._distributionCustomizer.applyPrefDefaults();
-          this._distributionCustomizer.applyCustomizations();
-          // To apply distribution bookmarks use "places-init-complete".
-        } else if (data == "force-places-init") {
-          this._initPlaces(false);
-        } else if (data == "smart-bookmarks-init") {
-          this.ensurePlacesDefaultQueriesInitialized().then(() => {
-            Services.obs.notifyObservers(null, "test-smart-bookmarks-done", null);
-          });
-        }
-        break;
-      case "initial-migration-will-import-default-bookmarks":
-        this._migrationImportsDefaultBookmarks = true;
-        break;
-      case "initial-migration-did-import-default-bookmarks":
-        this._initPlaces(true);
-        break;
-      case "handle-xul-text-link":
-        let linkHandled = subject.QueryInterface(Ci.nsISupportsPRBool);
-        if (!linkHandled.data) {
-          let win = RecentWindow.getMostRecentBrowserWindow();
-          if (win) {
-            data = JSON.parse(data);
-            let where = win.whereToOpenLink(data);
-            // Preserve legacy behavior of non-modifier left-clicks
-            // opening in a new selected tab.
-            if (where == "current") {
-              where = "tab";
-            }
-            win.openUILinkIn(data.href, where);
-            linkHandled.data = true;
-          }
-        }
-        break;
-      case "profile-before-change":
-         // Any component depending on Places should be finalized in
-         // _onPlacesShutdown.  Any component that doesn't need to act after
-         // the UI has gone should be finalized in _onQuitApplicationGranted.
-        this._dispose();
-        break;
-      case "keyword-search":
-        // This notification is broadcast by the docshell when it "fixes up" a
-        // URI that it's been asked to load into a keyword search.
-        let engine = null;
-        try {
-          engine = subject.QueryInterface(Ci.nsISearchEngine);
-        } catch (ex) {
-          Cu.reportError(ex);
-        }
-        let win = RecentWindow.getMostRecentBrowserWindow();
-        win.BrowserSearch.recordSearchInTelemetry(engine, "urlbar");
-        break;
-      case "browser-search-engine-modified":
-        // Ensure we cleanup the hiddenOneOffs pref when removing
-        // an engine, and that newly added engines are visible.
-        if (data == "engine-added" || data == "engine-removed") {
-          let engineName = subject.QueryInterface(Ci.nsISearchEngine).name;
-          let Preferences =
-            Cu.import("resource://gre/modules/Preferences.jsm", {}).Preferences;
-          let pref = Preferences.get("browser.search.hiddenOneOffs");
-          let hiddenList = pref ? pref.split(",") : [];
-          hiddenList = hiddenList.filter(x => x !== engineName);
-          Preferences.set("browser.search.hiddenOneOffs",
-                          hiddenList.join(","));
-        }
-        break;
-      case "flash-plugin-hang":
-        this._handleFlashHang();
-        break;
-      case "xpi-signature-changed":
-        let disabledAddons = JSON.parse(data).disabled;
-        AddonManager.getAddonsByIDs(disabledAddons, (addons) => {
-          for (let addon of addons) {
-            if (addon.type != "experiment") {
-              this._notifyUnsignedAddonsDisabled();
-              break;
-            }
-          }
-        });
-        break;
-      case "test-initialize-sanitizer":
-        this._sanitizer.onStartup();
-        break;
-      case AddonWatcher.TOPIC_SLOW_ADDON_DETECTED:
-        this._notifySlowAddon(data);
-        break;
-    }
-  },
-
-  // initialization (called on application startup)
-  _init: function BG__init() {
-    let os = Services.obs;
-    os.addObserver(this, "notifications-open-settings", false);
-    os.addObserver(this, "prefservice:after-app-defaults", false);
-    os.addObserver(this, "final-ui-startup", false);
-    os.addObserver(this, "browser-delayed-startup-finished", false);
-    os.addObserver(this, "sessionstore-windows-restored", false);
-    os.addObserver(this, "browser:purge-session-history", false);
-    os.addObserver(this, "quit-application-requested", false);
-    os.addObserver(this, "quit-application-granted", false);
-    if (OBSERVE_LASTWINDOW_CLOSE_TOPICS) {
-      os.addObserver(this, "browser-lastwindow-close-requested", false);
-      os.addObserver(this, "browser-lastwindow-close-granted", false);
-    }
-    os.addObserver(this, "weave:service:ready", false);
-    os.addObserver(this, "fxaccounts:onverified", false);
-    os.addObserver(this, "fxaccounts:device_connected", false);
-    os.addObserver(this, "fxaccounts:device_disconnected", false);
-    os.addObserver(this, "weave:engine:clients:display-uris", false);
-    os.addObserver(this, "session-save", false);
-    os.addObserver(this, "places-init-complete", false);
-    this._isPlacesInitObserver = true;
-    os.addObserver(this, "places-database-locked", false);
-    this._isPlacesLockedObserver = true;
-    os.addObserver(this, "distribution-customization-complete", false);
-    os.addObserver(this, "handle-xul-text-link", false);
-    os.addObserver(this, "profile-before-change", false);
-#ifdef MOZ_TELEMETRY_REPORTING
-    os.addObserver(this, "keyword-search", false);
-#endif
-    os.addObserver(this, "browser-search-engine-modified", false);
-    os.addObserver(this, "restart-in-safe-mode", false);
-    os.addObserver(this, "flash-plugin-hang", false);
-    os.addObserver(this, "xpi-signature-changed", false);
-
-#ifdef NIGHTLY_BUILD
-    os.addObserver(this, AddonWatcher.TOPIC_SLOW_ADDON_DETECTED, false);
-#endif
-
-    this._flashHangCount = 0;
-    this._firstWindowReady = new Promise(resolve => this._firstWindowLoaded = resolve);
-
-#if defined(XP_WIN) || defined(XP_MACOSX)
-    // Handles prompting to inform about incompatibilites when accessibility
-    // and e10s are active together.
-    E10SAccessibilityCheck.init();
-#endif
-  },
-
-  // cleanup (called on application shutdown)
-  _dispose: function BG__dispose() {
-    let os = Services.obs;
-    os.removeObserver(this, "notifications-open-settings");
-    os.removeObserver(this, "prefservice:after-app-defaults");
-    os.removeObserver(this, "final-ui-startup");
-    os.removeObserver(this, "sessionstore-windows-restored");
-    os.removeObserver(this, "browser:purge-session-history");
-    os.removeObserver(this, "quit-application-requested");
-    os.removeObserver(this, "quit-application-granted");
-    os.removeObserver(this, "restart-in-safe-mode");
-    if (OBSERVE_LASTWINDOW_CLOSE_TOPICS) {
-      os.removeObserver(this, "browser-lastwindow-close-requested");
-      os.removeObserver(this, "browser-lastwindow-close-granted");
-    }
-    os.removeObserver(this, "weave:service:ready");
-    os.removeObserver(this, "fxaccounts:onverified");
-    os.removeObserver(this, "fxaccounts:device_connected");
-    os.removeObserver(this, "fxaccounts:device_disconnected");
-    os.removeObserver(this, "weave:engine:clients:display-uris");
-    os.removeObserver(this, "session-save");
-    if (this._bookmarksBackupIdleTime) {
-      this._idleService.removeIdleObserver(this, this._bookmarksBackupIdleTime);
-      delete this._bookmarksBackupIdleTime;
-    }
-    if (this._isPlacesInitObserver)
-      os.removeObserver(this, "places-init-complete");
-    if (this._isPlacesLockedObserver)
-      os.removeObserver(this, "places-database-locked");
-    os.removeObserver(this, "handle-xul-text-link");
-    os.removeObserver(this, "profile-before-change");
-#ifdef MOZ_TELEMETRY_REPORTING
-    os.removeObserver(this, "keyword-search");
-#endif
-    os.removeObserver(this, "browser-search-engine-modified");
-    os.removeObserver(this, "flash-plugin-hang");
-    os.removeObserver(this, "xpi-signature-changed");
-  },
-
-  _onAppDefaults: function BG__onAppDefaults() {
-    // apply distribution customizations (prefs)
-    // other customizations are applied in _finalUIStartup()
-    this._distributionCustomizer.applyPrefDefaults();
-  },
-
-  _notifySlowAddon: function BG_notifySlowAddon(addonId) {
-    let addonCallback = function(addon) {
-      if (!addon) {
-        Cu.reportError("couldn't look up addon: " + addonId);
-        return;
-      }
-      let win = RecentWindow.getMostRecentBrowserWindow();
-
-      if (!win) {
-        return;
-      }
-
-      let brandBundle = win.document.getElementById("bundle_brand");
-      let brandShortName = brandBundle.getString("brandShortName");
-      let message = win.gNavigatorBundle.getFormattedString("addonwatch.slow", [addon.name, brandShortName]);
-      let notificationBox = win.document.getElementById("global-notificationbox");
-      let notificationId = "addon-slow:" + addonId;
-      let notification = notificationBox.getNotificationWithValue(notificationId);
-
-      // Monitor the response of users
-      const STATE_WARNING_DISPLAYED = 0;
-      const STATE_USER_PICKED_DISABLE = 1;
-      const STATE_USER_PICKED_IGNORE_FOR_NOW = 2;
-      const STATE_USER_PICKED_IGNORE_FOREVER = 3;
-      const STATE_USER_CLOSED_NOTIFICATION = 4;
-
-      let update = function(response) {
-        Services.telemetry.getHistogramById("SLOW_ADDON_WARNING_STATES").add(response);
-      }
-
-      let complete = false;
-      let start = Date.now();
-      let done = function(response) {
-        // Only report the first reason for closing.
-        if (complete) {
-          return;
-        }
-        complete = true;
-        update(response);
-        Services.telemetry.getHistogramById("SLOW_ADDON_WARNING_RESPONSE_TIME").add(Date.now() - start);
-      };
-
-      update(STATE_WARNING_DISPLAYED);
-
-      if (notification) {
-        notification.label = message;
-      } else {
-        let buttons = [
-          {
-            label: win.gNavigatorBundle.getFormattedString("addonwatch.disable.label", [addon.name]),
-            accessKey: "", // workaround for bug 1192901
-            callback() {
-              done(STATE_USER_PICKED_DISABLE);
-              addon.userDisabled = true;
-              if (addon.pendingOperations == addon.PENDING_NONE) {
-                return;
-              }
-              let restartMessage = win.gNavigatorBundle.getFormattedString("addonwatch.restart.message", [addon.name, brandShortName]);
-              let restartButton = [
-                {
-                  label: win.gNavigatorBundle.getFormattedString("addonwatch.restart.label", [brandShortName]),
-                  accessKey: win.gNavigatorBundle.getString("addonwatch.restart.accesskey"),
-                  callback() {
-                    let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"]
-                      .getService(Ci.nsIAppStartup);
-                    appStartup.quit(appStartup.eForceQuit | appStartup.eRestart);
-                  }
-                }
-              ];
-              const priority = notificationBox.PRIORITY_WARNING_MEDIUM;
-              notificationBox.appendNotification(restartMessage, "restart-" + addonId, "",
-                                                 priority, restartButton);
-            }
-          },
-          {
-            label: win.gNavigatorBundle.getString("addonwatch.ignoreSession.label"),
-            accessKey: win.gNavigatorBundle.getString("addonwatch.ignoreSession.accesskey"),
-            callback() {
-              done(STATE_USER_PICKED_IGNORE_FOR_NOW);
-              AddonWatcher.ignoreAddonForSession(addonId);
-            }
-          },
-          {
-            label: win.gNavigatorBundle.getString("addonwatch.ignorePerm.label"),
-            accessKey: win.gNavigatorBundle.getString("addonwatch.ignorePerm.accesskey"),
-            callback() {
-              done(STATE_USER_PICKED_IGNORE_FOREVER);
-              AddonWatcher.ignoreAddonPermanently(addonId);
-            }
-          },
-        ];
-
-        const priority = notificationBox.PRIORITY_WARNING_MEDIUM;
-        notification = notificationBox.appendNotification(
-          message, notificationId, "",
-          priority, buttons,
-          function(topic) {
-            if (topic == "removed") {
-              // Other callbacks are called before this one and only the first
-              // call to `done` is taken into account, so if this call to `done`
-              // gets through, this means that the user has closed the notification
-              // manually.
-              done(STATE_USER_CLOSED_NOTIFICATION);
-            }
-          });
-      }
-    };
-    AddonManager.getAddonByID(addonId, addonCallback);
-  },
-
-  // runs on startup, before the first command line handler is invoked
-  // (i.e. before the first window is opened)
-  _finalUIStartup: function BG__finalUIStartup() {
-    this._sanitizer.onStartup();
-    // check if we're in safe mode
-    if (Services.appinfo.inSafeMode) {
-      Services.ww.openWindow(null, "chrome://browser/content/safeMode.xul",
-                             "_blank", "chrome,centerscreen,modal,resizable=no", null);
-    }
-
-    // apply distribution customizations
-    // prefs are applied in _onAppDefaults()
-    this._distributionCustomizer.applyCustomizations();
-
-    // handle any UI migration
-    this._migrateUI();
-    
-    UserAgentOverrides.init();
-    
-    PageThumbs.init();
-    webrtcUI.init();
-    AboutHome.init();
-
-    DirectoryLinksProvider.init();
-    NewTabUtils.init();
-    NewTabUtils.links.addProvider(DirectoryLinksProvider);
-    AboutNewTab.init();
-
-    NewTabMessages.init();
-
-    SessionStore.init();
-    BrowserUsageTelemetry.init();
-    BrowserUITelemetry.init();
-    ContentSearch.init();
-    FormValidationHandler.init();
-
-    ContentClick.init();
-    RemotePrompt.init();
-    Feeds.init();
-    ContentPrefServiceParent.init();
-
-    LoginManagerParent.init();
-    ReaderParent.init();
-
-    SelfSupportBackend.init();
-
-    // Ensure we keep track of places/pw-mananager undo by init'ing this early.
-    Cu.import("resource:///modules/AutoMigrate.jsm");
-
-#ifdef INSTALL_COMPACT_THEMES
-    let vendorShortName = gBrandBundle.GetStringFromName("vendorShortName");
-
-    LightweightThemeManager.addBuiltInTheme({
-      id: "firefox-compact-light@mozilla.org",
-      name: gBrowserBundle.GetStringFromName("compactLightTheme.name"),
-      description: gBrowserBundle.GetStringFromName("compactLightTheme.description"),
-      headerURL: "resource:///chrome/browser/content/browser/defaultthemes/compact.header.png",
-      iconURL: "resource:///chrome/browser/content/browser/defaultthemes/compactlight.icon.svg",
-      textcolor: "black",
-      accentcolor: "white",
-      author: vendorShortName,
-    });
-    LightweightThemeManager.addBuiltInTheme({
-      id: "firefox-compact-dark@mozilla.org",
-      name: gBrowserBundle.GetStringFromName("compactDarkTheme.name"),
-      description: gBrowserBundle.GetStringFromName("compactDarkTheme.description"),
-      headerURL: "resource:///chrome/browser/content/browser/defaultthemes/compact.header.png",
-      iconURL: "resource:///chrome/browser/content/browser/defaultthemes/compactdark.icon.svg",
-      textcolor: "white",
-      accentcolor: "black",
-      author: vendorShortName,
-    });
-#endif
-
-    TabCrashHandler.init();
-
-    Services.obs.notifyObservers(null, "browser-ui-startup-complete", "");
-  },
-
-  _checkForOldBuildUpdates() {
-    // check for update if our build is old
-#ifdef MOZ_UPDATER
-    if (Services.prefs.getBoolPref("app.update.enabled") &&
-        Services.prefs.getBoolPref("app.update.checkInstallTime")) {
-
-      let buildID = Services.appinfo.appBuildID;
-      let today = new Date().getTime();
-      let buildDate = new Date(buildID.slice(0, 4),     // year
-                               buildID.slice(4, 6) - 1, // months are zero-based.
-                               buildID.slice(6, 8),     // day
-                               buildID.slice(8, 10),    // hour
-                               buildID.slice(10, 12),   // min
-                               buildID.slice(12, 14))   // ms
-      .getTime();
-
-      const millisecondsIn24Hours = 86400000;
-      let acceptableAge = Services.prefs.getIntPref("app.update.checkInstallTime.days") * millisecondsIn24Hours;
-
-      if (buildDate + acceptableAge < today) {
-        Cc["@mozilla.org/updates/update-service;1"].getService(Ci.nsIApplicationUpdateService).checkForBackgroundUpdates();
-      }
-    }
-#endif
-  },
-
-  _onSafeModeRestart: function BG_onSafeModeRestart() {
-    // prompt the user to confirm
-    let strings = gBrowserBundle;
-    let promptTitle = strings.GetStringFromName("safeModeRestartPromptTitle");
-    let promptMessage = strings.GetStringFromName("safeModeRestartPromptMessage");
-    let restartText = strings.GetStringFromName("safeModeRestartButton");
-    let buttonFlags = (Services.prompt.BUTTON_POS_0 *
-                       Services.prompt.BUTTON_TITLE_IS_STRING) +
-                      (Services.prompt.BUTTON_POS_1 *
-                       Services.prompt.BUTTON_TITLE_CANCEL) +
-                      Services.prompt.BUTTON_POS_0_DEFAULT;
-
-    let rv = Services.prompt.confirmEx(null, promptTitle, promptMessage,
-                                       buttonFlags, restartText, null, null,
-                                       null, {});
-    if (rv != 0)
-      return;
-
-    let cancelQuit = Cc["@mozilla.org/supports-PRBool;1"]
-                       .createInstance(Ci.nsISupportsPRBool);
-    Services.obs.notifyObservers(cancelQuit, "quit-application-requested", "restart");
-
-    if (!cancelQuit.data) {
-      Services.startup.restartInSafeMode(Ci.nsIAppStartup.eAttemptQuit);
-    }
-  },
-
-  _trackSlowStartup() {
-    if (Services.startup.interrupted ||
-        Services.prefs.getBoolPref("browser.slowStartup.notificationDisabled"))
-      return;
-
-    let currentTime = Date.now() - Services.startup.getStartupInfo().process;
-    let averageTime = 0;
-    let samples = 0;
-    try {
-      averageTime = Services.prefs.getIntPref("browser.slowStartup.averageTime");
-      samples = Services.prefs.getIntPref("browser.slowStartup.samples");
-    } catch (e) { }
-
-    let totalTime = (averageTime * samples) + currentTime;
-    samples++;
-    averageTime = totalTime / samples;
-
-    if (samples >= Services.prefs.getIntPref("browser.slowStartup.maxSamples")) {
-      if (averageTime > Services.prefs.getIntPref("browser.slowStartup.timeThreshold"))
-        this._calculateProfileAgeInDays().then(this._showSlowStartupNotification, null);
-      averageTime = 0;
-      samples = 0;
-    }
-
-    Services.prefs.setIntPref("browser.slowStartup.averageTime", averageTime);
-    Services.prefs.setIntPref("browser.slowStartup.samples", samples);
-  },
-
-  _calculateProfileAgeInDays: Task.async(function* () {
-    let ProfileAge = Cu.import("resource://gre/modules/ProfileAge.jsm", {}).ProfileAge;
-    let profileAge = new ProfileAge(null, null);
-
-    let creationDate = yield profileAge.created;
-    let resetDate = yield profileAge.reset;
-
-    // if the profile was reset, consider the
-    // reset date for its age.
-    let profileDate = resetDate || creationDate;
-
-    const ONE_DAY = 24 * 60 * 60 * 1000;
-    return (Date.now() - profileDate) / ONE_DAY;
-  }),
-
-  _showSlowStartupNotification(profileAge) {
-    if (profileAge < 90) // 3 months
-      return;
-
-    let win = RecentWindow.getMostRecentBrowserWindow();
-    if (!win)
-      return;
-
-    let productName = gBrandBundle.GetStringFromName("brandFullName");
-    let message = win.gNavigatorBundle.getFormattedString("slowStartup.message", [productName]);
-
-    let buttons = [
-      {
-        label:     win.gNavigatorBundle.getString("slowStartup.helpButton.label"),
-        accessKey: win.gNavigatorBundle.getString("slowStartup.helpButton.accesskey"),
-        callback() {
-          win.openUILinkIn("https://support.mozilla.org/kb/reset-firefox-easily-fix-most-problems", "tab");
-        }
-      },
-      {
-        label:     win.gNavigatorBundle.getString("slowStartup.disableNotificationButton.label"),
-        accessKey: win.gNavigatorBundle.getString("slowStartup.disableNotificationButton.accesskey"),
-        callback() {
-          Services.prefs.setBoolPref("browser.slowStartup.notificationDisabled", true);
-        }
-      }
-    ];
-
-    let nb = win.document.getElementById("global-notificationbox");
-    nb.appendNotification(message, "slow-startup",
-                          "chrome://browser/skin/slowStartup-16.png",
-                          nb.PRIORITY_INFO_LOW, buttons);
-  },
-
-  /**
-   * Show a notification bar offering a reset.
-   *
-   * @param reason
-   *        String of either "unused" or "uninstall", specifying the reason
-   *        why a profile reset is offered.
-   */
-  _resetProfileNotification(reason) {
-    let win = RecentWindow.getMostRecentBrowserWindow();
-    if (!win)
-      return;
-
-    Cu.import("resource://gre/modules/ResetProfile.jsm");
-    if (!ResetProfile.resetSupported())
-      return;
-
-    let productName = gBrandBundle.GetStringFromName("brandShortName");
-    let resetBundle = Services.strings
-                              .createBundle("chrome://global/locale/resetProfile.properties");
-
-    let message;
-    if (reason == "unused") {
-      message = resetBundle.formatStringFromName("resetUnusedProfile.message", [productName], 1);
-    } else if (reason == "uninstall") {
-      message = resetBundle.formatStringFromName("resetUninstalled.message", [productName], 1);
-    } else {
-      throw new Error(`Unknown reason (${reason}) given to _resetProfileNotification.`);
-    }
-    let buttons = [
-      {
-        label:     resetBundle.formatStringFromName("refreshProfile.resetButton.label", [productName], 1),
-        accessKey: resetBundle.GetStringFromName("refreshProfile.resetButton.accesskey"),
-        callback() {
-          ResetProfile.openConfirmationDialog(win);
-        }
-      },
-    ];
-
-    let nb = win.document.getElementById("global-notificationbox");
-    nb.appendNotification(message, "reset-profile-notification",
-                          "chrome://global/skin/icons/question-16.png",
-                          nb.PRIORITY_INFO_LOW, buttons);
-  },
-
-  _notifyUnsignedAddonsDisabled() {
-    let win = RecentWindow.getMostRecentBrowserWindow();
-    if (!win)
-      return;
-
-    let message = win.gNavigatorBundle.getString("unsignedAddonsDisabled.message");
-    let buttons = [
-      {
-        label:     win.gNavigatorBundle.getString("unsignedAddonsDisabled.learnMore.label"),
-        accessKey: win.gNavigatorBundle.getString("unsignedAddonsDisabled.learnMore.accesskey"),
-        callback() {
-          win.BrowserOpenAddonsMgr("addons://list/extension?unsigned=true");
-        }
-      },
-    ];
-
-    let nb = win.document.getElementById("high-priority-global-notificationbox");
-    nb.appendNotification(message, "unsigned-addons-disabled", "",
-                          nb.PRIORITY_WARNING_MEDIUM, buttons);
-  },
-
-  _firstWindowTelemetry(aWindow) {
-    let SCALING_PROBE_NAME = "";
-#ifdef XP_WIN
-    SCALING_PROBE_NAME = "DISPLAY_SCALING_MSWIN";
-#elif XP_MACOSX
-    SCALING_PROBE_NAME = "DISPLAY_SCALING_OSX";
-#elif XP_LINUX
-    SCALING_PROBE_NAME = "DISPLAY_SCALING_LINUX";
-#endif
-
-    if (SCALING_PROBE_NAME) {
-      let scaling = aWindow.devicePixelRatio * 100;
-      try {
-        Services.telemetry.getHistogramById(SCALING_PROBE_NAME).add(scaling);
-      } catch (ex) {}
-    }
-  },
-
-  // the first browser window has finished initializing
-  _onFirstWindowLoaded: function BG__onFirstWindowLoaded(aWindow) {
-    // Initialize PdfJs when running in-process and remote. This only
-    // happens once since PdfJs registers global hooks. If the PdfJs
-    // extension is installed the init method below will be overridden
-    // leaving initialization to the extension.
-    // parent only: configure default prefs, set up pref observers, register
-    // pdf content handler, and initializes parent side message manager
-    // shim for privileged api access.
-    PdfJs.init(true);
-    // child only: similar to the call above for parent - register content
-    // handler and init message manager child shim for privileged api access.
-    // With older versions of the extension installed, this load will fail
-    // passively.
-    Services.ppmm.loadProcessScript("resource://pdf.js/pdfjschildbootstrap.js", true);
-
-#ifdef XP_WIN
-    // For Windows 7, initialize the jump list module.
-    const WINTASKBAR_CONTRACTID = "@mozilla.org/windows-taskbar;1";
-    if (WINTASKBAR_CONTRACTID in Cc &&
-        Cc[WINTASKBAR_CONTRACTID].getService(Ci.nsIWinTaskbar).available) {
-      let temp = {};
-      Cu.import("resource:///modules/WindowsJumpLists.jsm", temp);
-      temp.WinTaskbarJumpList.startup();
-    }
-#endif
-
-    ProcessHangMonitor.init();
-
-    // A channel for "remote troubleshooting" code...
-    let channel = new WebChannel("remote-troubleshooting", "remote-troubleshooting");
-    channel.listen((id, data, target) => {
-      if (data.command == "request") {
-        let {Troubleshoot} = Cu.import("resource://gre/modules/Troubleshoot.jsm", {});
-        Troubleshoot.snapshot(snapshotData => {
-          // for privacy we remove crash IDs and all preferences (but bug 1091944
-          // exists to expose prefs once we are confident of privacy implications)
-          delete snapshotData.crashes;
-          delete snapshotData.modifiedPreferences;
-          channel.send(snapshotData, target);
-        });
-      }
-    });
-
-    this._trackSlowStartup();
-
-    // Offer to reset a user's profile if it hasn't been used for 60 days.
-    const OFFER_PROFILE_RESET_INTERVAL_MS = 60 * 24 * 60 * 60 * 1000;
-    let lastUse = Services.appinfo.replacedLockTime;
-    let disableResetPrompt = false;
-    try {
-      disableResetPrompt = Services.prefs.getBoolPref("browser.disableResetPrompt");
-    } catch (e) {}
-
-    if (!disableResetPrompt && lastUse &&
-        Date.now() - lastUse >= OFFER_PROFILE_RESET_INTERVAL_MS) {
-      this._resetProfileNotification("unused");
-#ifdef XP_WIN
-    } else if (!disableResetPrompt) {
-      // Check if we were just re-installed and offer Firefox Reset
-      let updateChannel;
-      try {
-        updateChannel = Cu.import("resource://gre/modules/UpdateUtils.jsm", {}).UpdateUtils.UpdateChannel;
-      } catch (ex) {}
-      if (updateChannel) {
-        let uninstalledValue =
-          WindowsRegistry.readRegKey(Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
-                                     "Software\\Mozilla\\Firefox",
-                                     `Uninstalled-${updateChannel}`);
-        let removalSuccessful =
-          WindowsRegistry.removeRegKey(Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
-                                       "Software\\Mozilla\\Firefox",
-                                       `Uninstalled-${updateChannel}`);
-        if (removalSuccessful && uninstalledValue == "True") {
-          this._resetProfileNotification("uninstall");
-        }
-      }
-#endif
-    }
-
-    this._checkForOldBuildUpdates();
-
-    AutoCompletePopup.init();
-    DateTimePickerHelper.init();
-
-    this._firstWindowTelemetry(aWindow);
-    this._firstWindowLoaded();
-  },
-
-  /**
-   * Application shutdown handler.
-   */
-  _onQuitApplicationGranted() {
-    // This pref must be set here because SessionStore will use its value
-    // on quit-application.
-    this._setPrefToSaveSession();
-
-    // Call trackStartupCrashEnd here in case the delayed call on startup hasn't
-    // yet occurred (see trackStartupCrashEnd caller in browser.js).
-    try {
-      let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"]
-                         .getService(Ci.nsIAppStartup);
-      appStartup.trackStartupCrashEnd();
-    } catch (e) {
-      Cu.reportError("Could not end startup crash tracking in quit-application-granted: " + e);
-    }
-
-    if (this._bookmarksBackupIdleTime) {
-      this._idleService.removeIdleObserver(this, this._bookmarksBackupIdleTime);
-      delete this._bookmarksBackupIdleTime;
-    }
-
-    BrowserUsageTelemetry.uninit();
-    SelfSupportBackend.uninit();
-    UserAgentOverrides.uninit();
-    PageThumbs.uninit();
-    NewTabMessages.uninit();
-    AboutNewTab.uninit();
-    webrtcUI.uninit();
-    FormValidationHandler.uninit();
-    AutoCompletePopup.uninit();
-    DateTimePickerHelper.uninit();
-#ifdef NIGHTLY_BUILD
-    AddonWatcher.uninit();
-#endif
-  },
-
-  _initServiceDiscovery() {
-    if (!Services.prefs.getBoolPref("browser.casting.enabled")) {
-      return;
-    }
-    var rokuDevice = {
-      id: "roku:ecp",
-      target: "roku:ecp",
-      factory(aService) {
-        Cu.import("resource://gre/modules/RokuApp.jsm");
-        return new RokuApp(aService);
-      },
-      types: ["video/mp4"],
-      extensions: ["mp4"]
-    };
-
-    // Register targets
-    SimpleServiceDiscovery.registerDevice(rokuDevice);
-
-    // Search for devices continuously every 120 seconds
-    SimpleServiceDiscovery.search(120 * 1000);
-  },
-
-  // All initial windows have opened.
-  _onWindowsRestored: function BG__onWindowsRestored() {
-#ifdef MOZ_DEV_EDITION
-    this._createExtraDefaultProfile();
-#endif
-
-    this._initServiceDiscovery();
-
-    // Show update notification, if needed.
-    if (Services.prefs.prefHasUserValue("app.update.postupdate"))
-      this._showUpdateNotification();
-
-    // Load the "more info" page for a locked places.sqlite
-    // This property is set earlier by places-database-locked topic.
-    if (this._isPlacesDatabaseLocked) {
-      this._showPlacesLockedNotificationBox();
-    }
-
-    ExtensionsUI.init();
-
-    let signingRequired;
-#ifdef MOZ_REQUIRE_SIGNING
-    signingRequired = true;
-#else
-    signingRequired = Services.prefs.getBoolPref("xpinstall.signatures.required");
-#endif
-
-    if (signingRequired) {
-      let disabledAddons = AddonManager.getStartupChanges(AddonManager.STARTUP_CHANGE_DISABLED);
-      AddonManager.getAddonsByIDs(disabledAddons, (addons) => {
-        for (let addon of addons) {
-          if (addon.type == "experiment")
-            continue;
-
-          if (addon.signedState <= AddonManager.SIGNEDSTATE_MISSING) {
-            this._notifyUnsignedAddonsDisabled();
-            break;
-          }
-        }
-      });
-    }
-
-    // Perform default browser checking.
-    if (ShellService) {
-#ifdef DEBUG
-      let shouldCheck = false;
-#else
-      let shouldCheck = ShellService.shouldCheckDefaultBrowser;
-#endif
-
-      const skipDefaultBrowserCheck =
-        Services.prefs.getBoolPref("browser.shell.skipDefaultBrowserCheckOnFirstRun") &&
-        Services.prefs.getBoolPref("browser.shell.skipDefaultBrowserCheck");
-
-#ifdef RELEASE_OR_BETA
-      const usePromptLimit = false;
-#else
-      const usePromptLimit = true;
-#endif
-      let promptCount =
-        usePromptLimit ? Services.prefs.getIntPref("browser.shell.defaultBrowserCheckCount") : 0;
-
-      let willRecoverSession = false;
-      try {
-        let ss = Cc["@mozilla.org/browser/sessionstartup;1"].
-                 getService(Ci.nsISessionStartup);
-        willRecoverSession =
-          (ss.sessionType == Ci.nsISessionStartup.RECOVER_SESSION);
-      } catch (ex) { /* never mind; suppose SessionStore is broken */ }
-
-      // startup check, check all assoc
-      let isDefault = false;
-      let isDefaultError = false;
-      try {
-        isDefault = ShellService.isDefaultBrowser(true, false);
-      } catch (ex) {
-        isDefaultError = true;
-      }
-
-      if (isDefault) {
-        let now = (Math.floor(Date.now() / 1000)).toString();
-        Services.prefs.setCharPref("browser.shell.mostRecentDateSetAsDefault", now);
-      }
-
-      let willPrompt = shouldCheck && !isDefault && !willRecoverSession;
-
-      // Skip the "Set Default Browser" check during first-run or after the
-      // browser has been run a few times.
-      if (willPrompt) {
-        if (skipDefaultBrowserCheck) {
-          Services.prefs.setBoolPref("browser.shell.skipDefaultBrowserCheck", false);
-          willPrompt = false;
-        } else {
-          promptCount++;
-        }
-        if (usePromptLimit && promptCount > 3) {
-          willPrompt = false;
-        }
-      }
-
-      if (usePromptLimit && willPrompt) {
-        Services.prefs.setIntPref("browser.shell.defaultBrowserCheckCount", promptCount);
-      }
-
-      try {
-        // Report default browser status on startup to telemetry
-        // so we can track whether we are the default.
-        Services.telemetry.getHistogramById("BROWSER_IS_USER_DEFAULT")
-                          .add(isDefault);
-        Services.telemetry.getHistogramById("BROWSER_IS_USER_DEFAULT_ERROR")
-                          .add(isDefaultError);
-        Services.telemetry.getHistogramById("BROWSER_SET_DEFAULT_ALWAYS_CHECK")
-                          .add(shouldCheck);
-        Services.telemetry.getHistogramById("BROWSER_SET_DEFAULT_DIALOG_PROMPT_RAWCOUNT")
-                          .add(promptCount);
-      } catch (ex) { /* Don't break the default prompt if telemetry is broken. */ }
-
-      if (willPrompt) {
-        Services.tm.mainThread.dispatch(function() {
-          DefaultBrowserCheck.prompt(RecentWindow.getMostRecentBrowserWindow());
-        }, Ci.nsIThread.DISPATCH_NORMAL);
-      }
-    }
-
-    E10SAccessibilityCheck.onWindowsRestored();
-  },
-
-  _createExtraDefaultProfile() {
-#ifdef MOZ_DEV_EDITION
-    // If Developer Edition is the only installed Firefox version and no other
-    // profiles are present, create a second one for use by other versions.
-    // This helps Firefox versions earlier than 35 avoid accidentally using the
-    // unsuitable Developer Edition profile.
-    let profileService = Cc["@mozilla.org/toolkit/profile-service;1"]
-                         .getService(Ci.nsIToolkitProfileService);
-    let profileCount = profileService.profileCount;
-    if (profileCount == 1 && profileService.selectedProfile.name != "default") {
-      let newProfile;
-      try {
-        newProfile = profileService.createProfile(null, "default");
-        profileService.defaultProfile = newProfile;
-        profileService.flush();
-      } catch (e) {
-        Cu.reportError("Could not create profile 'default': " + e);
-      }
-      if (newProfile) {
-        // We don't want a default profile with Developer Edition settings, an
-        // empty profile directory will do. The profile service of the other
-        // Firefox will populate it with its own stuff.
-        let newProfilePath = newProfile.rootDir.path;
-        OS.File.removeDir(newProfilePath).then(() => {
-          return OS.File.makeDir(newProfilePath);
-        }).then(null, e => {
-          Cu.reportError("Could not empty profile 'default': " + e);
-        });
-      }
-    }
-#else
-    return;
-#endif
-  },
-
-  _onQuitRequest: function BG__onQuitRequest(aCancelQuit, aQuitType) {
-    // If user has already dismissed quit request, then do nothing
-    if ((aCancelQuit instanceof Ci.nsISupportsPRBool) && aCancelQuit.data)
-      return;
-
-    // There are several cases where we won't show a dialog here:
-    // 1. There is only 1 tab open in 1 window
-    // 2. The session will be restored at startup, indicated by
-    //    browser.startup.page == 3 or browser.sessionstore.resume_session_once == true
-    // 3. browser.warnOnQuit == false
-    // 4. The browser is currently in Private Browsing mode
-    // 5. The browser will be restarted.
-    //
-    // Otherwise these are the conditions and the associated dialogs that will be shown:
-    // 1. aQuitType == "lastwindow" or "quit" and browser.showQuitWarning == true
-    //    - The quit dialog will be shown
-    // 2. aQuitType == "lastwindow" && browser.tabs.warnOnClose == true
-    //    - The "closing multiple tabs" dialog will be shown
-    //
-    // aQuitType == "lastwindow" is overloaded. "lastwindow" is used to indicate
-    // "the last window is closing but we're not quitting (a non-browser window is open)"
-    // and also "we're quitting by closing the last window".
-
-    if (aQuitType == "restart")
-      return;
-
-    var windowcount = 0;
-    var pagecount = 0;
-    var browserEnum = Services.wm.getEnumerator("navigator:browser");
-    let allWindowsPrivate = true;
-    while (browserEnum.hasMoreElements()) {
-      // XXXbz should we skip closed windows here?
-      windowcount++;
-
-      var browser = browserEnum.getNext();
-      if (!PrivateBrowsingUtils.isWindowPrivate(browser))
-        allWindowsPrivate = false;
-      var tabbrowser = browser.document.getElementById("content");
-      if (tabbrowser)
-        pagecount += tabbrowser.browsers.length - tabbrowser._numPinnedTabs;
-    }
-
-    this._saveSession = false;
-    if (pagecount < 2)
-      return;
-
-    if (!aQuitType)
-      aQuitType = "quit";
-
-    // browser.warnOnQuit is a hidden global boolean to override all quit prompts
-    // browser.showQuitWarning specifically covers quitting
-    // browser.tabs.warnOnClose is the global "warn when closing multiple tabs" pref
-
-    var sessionWillBeRestored = Services.prefs.getIntPref("browser.startup.page") == 3 ||
-                                Services.prefs.getBoolPref("browser.sessionstore.resume_session_once");
-    if (sessionWillBeRestored || !Services.prefs.getBoolPref("browser.warnOnQuit"))
-      return;
-
-    let win = Services.wm.getMostRecentWindow("navigator:browser");
-
-    // On last window close or quit && showQuitWarning, we want to show the
-    // quit warning.
-    if (!Services.prefs.getBoolPref("browser.showQuitWarning")) {
-      if (aQuitType == "lastwindow") {
-        // If aQuitType is "lastwindow" and we aren't showing the quit warning,
-        // we should show the window closing warning instead. warnAboutClosing
-        // tabs checks browser.tabs.warnOnClose and returns if it's ok to close
-        // the window. It doesn't actually close the window.
-        aCancelQuit.data =
-          !win.gBrowser.warnAboutClosingTabs(win.gBrowser.closingTabsEnum.ALL);
-      }
-      return;
-    }
-
-    let prompt = Services.prompt;
-    let quitBundle = Services.strings.createBundle("chrome://browser/locale/quitDialog.properties");
-    let appName = gBrandBundle.GetStringFromName("brandShortName");
-    let quitDialogTitle = quitBundle.formatStringFromName("quitDialogTitle",
-                                                          [appName], 1);
-    let neverAskText = quitBundle.GetStringFromName("neverAsk2");
-    let neverAsk = {value: false};
-
-    let choice;
-    if (allWindowsPrivate) {
-      let text = quitBundle.formatStringFromName("messagePrivate", [appName], 1);
-      let flags = prompt.BUTTON_TITLE_IS_STRING * prompt.BUTTON_POS_0 +
-                  prompt.BUTTON_TITLE_IS_STRING * prompt.BUTTON_POS_1 +
-                  prompt.BUTTON_POS_0_DEFAULT;
-      choice = prompt.confirmEx(win, quitDialogTitle, text, flags,
-                                quitBundle.GetStringFromName("quitTitle"),
-                                quitBundle.GetStringFromName("cancelTitle"),
-                                null,
-                                neverAskText, neverAsk);
-
-      // The order of the buttons differs between the prompt.confirmEx calls
-      // here so we need to fix this for proper handling below.
-      if (choice == 0) {
-        choice = 2;
-      }
-    } else {
-      let text = quitBundle.formatStringFromName(
-        windowcount == 1 ? "messageNoWindows" : "message", [appName], 1);
-      let flags = prompt.BUTTON_TITLE_IS_STRING * prompt.BUTTON_POS_0 +
-                  prompt.BUTTON_TITLE_IS_STRING * prompt.BUTTON_POS_1 +
-                  prompt.BUTTON_TITLE_IS_STRING * prompt.BUTTON_POS_2 +
-                  prompt.BUTTON_POS_0_DEFAULT;
-      choice = prompt.confirmEx(win, quitDialogTitle, text, flags,
-                                quitBundle.GetStringFromName("saveTitle"),
-                                quitBundle.GetStringFromName("cancelTitle"),
-                                quitBundle.GetStringFromName("quitTitle"),
-                                neverAskText, neverAsk);
-    }
-
-    switch (choice) {
-    case 2: // Quit
-      if (neverAsk.value)
-        Services.prefs.setBoolPref("browser.showQuitWarning", false);
-      break;
-    case 1: // Cancel
-      aCancelQuit.QueryInterface(Ci.nsISupportsPRBool);
-      aCancelQuit.data = true;
-      break;
-    case 0: // Save & Quit
-      this._saveSession = true;
-      if (neverAsk.value) {
-        // always save state when shutting down
-        Services.prefs.setIntPref("browser.startup.page", 3);
-      }
-      break;
-    }
-  },
-
-  _showUpdateNotification: function BG__showUpdateNotification() {
-    Services.prefs.clearUserPref("app.update.postupdate");
-
-    var um = Cc["@mozilla.org/updates/update-manager;1"].
-             getService(Ci.nsIUpdateManager);
-    try {
-      // If the updates.xml file is deleted then getUpdateAt will throw.
-      var update = um.getUpdateAt(0).QueryInterface(Ci.nsIPropertyBag);
-    } catch (e) {
-      // This should never happen.
-      Cu.reportError("Unable to find update: " + e);
-      return;
-    }
-
-    var actions = update.getProperty("actions");
-    if (!actions || actions.indexOf("silent") != -1)
-      return;
-
-    var formatter = Cc["@mozilla.org/toolkit/URLFormatterService;1"].
-                    getService(Ci.nsIURLFormatter);
-    var appName = gBrandBundle.GetStringFromName("brandShortName");
-
-    function getNotifyString(aPropData) {
-      var propValue = update.getProperty(aPropData.propName);
-      if (!propValue) {
-        if (aPropData.prefName)
-          propValue = formatter.formatURLPref(aPropData.prefName);
-        else if (aPropData.stringParams)
-          propValue = gBrowserBundle.formatStringFromName(aPropData.stringName,
-                                                          aPropData.stringParams,
-                                                          aPropData.stringParams.length);
-        else
-          propValue = gBrowserBundle.GetStringFromName(aPropData.stringName);
-      }
-      return propValue;
-    }
-
-    if (actions.indexOf("showNotification") != -1) {
-      let text = getNotifyString({propName: "notificationText",
-                                  stringName: "puNotifyText",
-                                  stringParams: [appName]});
-      let url = getNotifyString({propName: "notificationURL",
-                                 prefName: "startup.homepage_override_url"});
-      let label = getNotifyString({propName: "notificationButtonLabel",
-                                   stringName: "pu.notifyButton.label"});
-      let key = getNotifyString({propName: "notificationButtonAccessKey",
-                                 stringName: "pu.notifyButton.accesskey"});
-
-      let win = RecentWindow.getMostRecentBrowserWindow();
-      let notifyBox = win.document.getElementById("high-priority-global-notificationbox");
-
-      let buttons = [
-                      {
-                        label,
-                        accessKey: key,
-                        popup:     null,
-                        callback(aNotificationBar, aButton) {
-                          win.openUILinkIn(url, "tab");
-                        }
-                      }
-                    ];
-
-      notifyBox.appendNotification(text, "post-update-notification",
-                                   null, notifyBox.PRIORITY_INFO_LOW,
-                                   buttons);
-    }
-
-    if (actions.indexOf("showAlert") == -1)
-      return;
-
-    let title = getNotifyString({propName: "alertTitle",
-                                 stringName: "puAlertTitle",
-                                 stringParams: [appName]});
-    let text = getNotifyString({propName: "alertText",
-                                stringName: "puAlertText",
-                                stringParams: [appName]});
-    let url = getNotifyString({propName: "alertURL",
-                               prefName: "startup.homepage_override_url"});
-
-    function clickCallback(subject, topic, data) {
-      // This callback will be called twice but only once with this topic
-      if (topic != "alertclickcallback")
-        return;
-      let win = RecentWindow.getMostRecentBrowserWindow();
-      win.openUILinkIn(data, "tab");
-    }
-
-    try {
-      // This will throw NS_ERROR_NOT_AVAILABLE if the notification cannot
-      // be displayed per the idl.
-      AlertsService.showAlertNotification(null, title, text,
-                                          true, url, clickCallback);
-    } catch (e) {
-      Cu.reportError(e);
-    }
-  },
-
-  /**
-   * Initialize Places
-   * - imports the bookmarks html file if bookmarks database is empty, try to
-   *   restore bookmarks from a JSON backup if the backend indicates that the
-   *   database was corrupt.
-   *
-   * These prefs can be set up by the frontend:
-   *
-   * WARNING: setting these preferences to true will overwite existing bookmarks
-   *
-   * - browser.places.importBookmarksHTML
-   *   Set to true will import the bookmarks.html file from the profile folder.
-   * - browser.places.smartBookmarksVersion
-   *   Set during HTML import to indicate that Smart Bookmarks were created.
-   *   Set to -1 to disable Smart Bookmarks creation.
-   *   Set to 0 to restore current Smart Bookmarks.
-   * - browser.bookmarks.restore_default_bookmarks
-   *   Set to true by safe-mode dialog to indicate we must restore default
-   *   bookmarks.
-   */
-  _initPlaces: function BG__initPlaces(aInitialMigrationPerformed) {
-    // We must instantiate the history service since it will tell us if we
-    // need to import or restore bookmarks due to first-run, corruption or
-    // forced migration (due to a major schema change).
-    // If the database is corrupt or has been newly created we should
-    // import bookmarks.
-    let dbStatus = PlacesUtils.history.databaseStatus;
-    let importBookmarks = !aInitialMigrationPerformed &&
-                          (dbStatus == PlacesUtils.history.DATABASE_STATUS_CREATE ||
-                           dbStatus == PlacesUtils.history.DATABASE_STATUS_CORRUPT);
-
-    // Check if user or an extension has required to import bookmarks.html
-    let importBookmarksHTML = false;
-    try {
-      importBookmarksHTML =
-        Services.prefs.getBoolPref("browser.places.importBookmarksHTML");
-      if (importBookmarksHTML)
-        importBookmarks = true;
-    } catch (ex) {}
-
-    // Support legacy bookmarks.html format for apps that depend on that format.
-    let autoExportHTML = false;
-    try {
-      autoExportHTML = Services.prefs.getBoolPref("browser.bookmarks.autoExportHTML");
-    } catch (ex) {} // Do not export.
-    if (autoExportHTML) {
-      // Sqlite.jsm and Places shutdown happen at profile-before-change, thus,
-      // to be on the safe side, this should run earlier.
-      AsyncShutdown.profileChangeTeardown.addBlocker(
-        "Places: export bookmarks.html",
-        () => BookmarkHTMLUtils.exportToFile(BookmarkHTMLUtils.defaultPath));
-    }
-
-    Task.spawn(function* () {
-      // Check if Safe Mode or the user has required to restore bookmarks from
-      // default profile's bookmarks.html
-      let restoreDefaultBookmarks = false;
-      try {
-        restoreDefaultBookmarks =
-          Services.prefs.getBoolPref("browser.bookmarks.restore_default_bookmarks");
-        if (restoreDefaultBookmarks) {
-          // Ensure that we already have a bookmarks backup for today.
-          yield this._backupBookmarks();
-          importBookmarks = true;
-        }
-      } catch (ex) {}
-
-      // This may be reused later, check for "=== undefined" to see if it has
-      // been populated already.
-      let lastBackupFile;
-
-      // If the user did not require to restore default bookmarks, or import
-      // from bookmarks.html, we will try to restore from JSON
-      if (importBookmarks && !restoreDefaultBookmarks && !importBookmarksHTML) {
-        // get latest JSON backup
-        lastBackupFile = yield PlacesBackups.getMostRecentBackup();
-        if (lastBackupFile) {
-          // restore from JSON backup
-          yield BookmarkJSONUtils.importFromFile(lastBackupFile, true);
-          importBookmarks = false;
-        } else {
-          // We have created a new database but we don't have any backup available
-          importBookmarks = true;
-          if (yield OS.File.exists(BookmarkHTMLUtils.defaultPath)) {
-            // If bookmarks.html is available in current profile import it...
-            importBookmarksHTML = true;
-          } else {
-            // ...otherwise we will restore defaults
-            restoreDefaultBookmarks = true;
-          }
-        }
-      }
-
-      // If bookmarks are not imported, then initialize smart bookmarks.  This
-      // happens during a common startup.
-      // Otherwise, if any kind of import runs, smart bookmarks creation should be
-      // delayed till the import operations has finished.  Not doing so would
-      // cause them to be overwritten by the newly imported bookmarks.
-      if (!importBookmarks) {
-        // Now apply distribution customized bookmarks.
-        // This should always run after Places initialization.
-        try {
-          yield this._distributionCustomizer.applyBookmarks();
-          yield this.ensurePlacesDefaultQueriesInitialized();
-        } catch (e) {
-          Cu.reportError(e);
-        }
-      } else {
-        // An import operation is about to run.
-        // Don't try to recreate smart bookmarks if autoExportHTML is true or
-        // smart bookmarks are disabled.
-        let smartBookmarksVersion = 0;
-        try {
-          smartBookmarksVersion = Services.prefs.getIntPref("browser.places.smartBookmarksVersion");
-        } catch (ex) {}
-        if (!autoExportHTML && smartBookmarksVersion != -1)
-          Services.prefs.setIntPref("browser.places.smartBookmarksVersion", 0);
-
-        let bookmarksUrl = null;
-        if (restoreDefaultBookmarks) {
-          // User wants to restore bookmarks.html file from default profile folder
-          bookmarksUrl = "chrome://browser/locale/bookmarks.html";
-        } else if (yield OS.File.exists(BookmarkHTMLUtils.defaultPath)) {
-          bookmarksUrl = OS.Path.toFileURI(BookmarkHTMLUtils.defaultPath);
-        }
-
-        if (bookmarksUrl) {
-          // Import from bookmarks.html file.
-          try {
-            yield BookmarkHTMLUtils.importFromURL(bookmarksUrl, true);
-          } catch (e) {
-            Cu.reportError("Bookmarks.html file could be corrupt. " + e);
-          }
-          try {
-            // Now apply distribution customized bookmarks.
-            // This should always run after Places initialization.
-            yield this._distributionCustomizer.applyBookmarks();
-            // Ensure that smart bookmarks are created once the operation is
-            // complete.
-            yield this.ensurePlacesDefaultQueriesInitialized();
-          } catch (e) {
-            Cu.reportError(e);
-          }
-
-        } else {
-          Cu.reportError(new Error("Unable to find bookmarks.html file."));
-        }
-
-        // Reset preferences, so we won't try to import again at next run
-        if (importBookmarksHTML)
-          Services.prefs.setBoolPref("browser.places.importBookmarksHTML", false);
-        if (restoreDefaultBookmarks)
-          Services.prefs.setBoolPref("browser.bookmarks.restore_default_bookmarks",
-                                     false);
-      }
-
-      // Initialize bookmark archiving on idle.
-      if (!this._bookmarksBackupIdleTime) {
-        this._bookmarksBackupIdleTime = BOOKMARKS_BACKUP_IDLE_TIME_SEC;
-
-        // If there is no backup, or the last bookmarks backup is too old, use
-        // a more aggressive idle observer.
-        if (lastBackupFile === undefined)
-          lastBackupFile = yield PlacesBackups.getMostRecentBackup();
-        if (!lastBackupFile) {
-            this._bookmarksBackupIdleTime /= 2;
-        } else {
-          let lastBackupTime = PlacesBackups.getDateForFile(lastBackupFile);
-          let profileLastUse = Services.appinfo.replacedLockTime || Date.now();
-
-          // If there is a backup after the last profile usage date it's fine,
-          // regardless its age.  Otherwise check how old is the last
-          // available backup compared to that session.
-          if (profileLastUse > lastBackupTime) {
-            let backupAge = Math.round((profileLastUse - lastBackupTime) / 86400000);
-            // Report the age of the last available backup.
-            try {
-              Services.telemetry
-                      .getHistogramById("PLACES_BACKUPS_DAYSFROMLAST")
-                      .add(backupAge);
-            } catch (ex) {
-              Cu.reportError(new Error("Unable to report telemetry."));
-            }
-
-            if (backupAge > BOOKMARKS_BACKUP_MAX_INTERVAL_DAYS)
-              this._bookmarksBackupIdleTime /= 2;
-          }
-        }
-        this._idleService.addIdleObserver(this, this._bookmarksBackupIdleTime);
-      }
-
-    }.bind(this)).catch(ex => {
-      Cu.reportError(ex);
-    }).then(() => {
-      // NB: deliberately after the catch so that we always do this, even if
-      // we threw halfway through initializing in the Task above.
-      Services.obs.notifyObservers(null, "places-browser-init-complete", "");
-    });
-  },
-
-  /**
-   * If a backup for today doesn't exist, this creates one.
-   */
-  _backupBookmarks: function BG__backupBookmarks() {
-    return Task.spawn(function*() {
-      let lastBackupFile = yield PlacesBackups.getMostRecentBackup();
-      // Should backup bookmarks if there are no backups or the maximum
-      // interval between backups elapsed.
-      if (!lastBackupFile ||
-          new Date() - PlacesBackups.getDateForFile(lastBackupFile) > BOOKMARKS_BACKUP_MIN_INTERVAL_DAYS * 86400000) {
-        let maxBackups = Services.prefs.getIntPref("browser.bookmarks.max_backups");
-        yield PlacesBackups.create(maxBackups);
-      }
-    });
-  },
-
-  /**
-   * Show the notificationBox for a locked places database.
-   */
-  _showPlacesLockedNotificationBox: function BG__showPlacesLockedNotificationBox() {
-    var applicationName = gBrandBundle.GetStringFromName("brandShortName");
-    var placesBundle = Services.strings.createBundle("chrome://browser/locale/places/places.properties");
-    var title = placesBundle.GetStringFromName("lockPrompt.title");
-    var text = placesBundle.formatStringFromName("lockPrompt.text", [applicationName], 1);
-    var buttonText = placesBundle.GetStringFromName("lockPromptInfoButton.label");
-    var accessKey = placesBundle.GetStringFromName("lockPromptInfoButton.accessKey");
-
-    var helpTopic = "places-locked";
-    var url = Cc["@mozilla.org/toolkit/URLFormatterService;1"].
-              getService(Components.interfaces.nsIURLFormatter).
-              formatURLPref("app.support.baseURL");
-    url += helpTopic;
-
-    var win = RecentWindow.getMostRecentBrowserWindow();
-
-    var buttons = [
-                    {
-                      label:     buttonText,
-                      accessKey,
-                      popup:     null,
-                      callback(aNotificationBar, aButton) {
-                        win.openUILinkIn(url, "tab");
-                      }
-                    }
-                  ];
-
-    var notifyBox = win.gBrowser.getNotificationBox();
-    var notification = notifyBox.appendNotification(text, title, null,
-                                                    notifyBox.PRIORITY_CRITICAL_MEDIUM,
-                                                    buttons);
-    notification.persistence = -1; // Until user closes it
-  },
-
-  _showSyncStartedDoorhanger() {
-    let bundle = Services.strings.createBundle("chrome://browser/locale/accounts.properties");
-    let productName = gBrandBundle.GetStringFromName("brandShortName");
-    let title = bundle.GetStringFromName("syncStartNotification.title");
-    let body = bundle.formatStringFromName("syncStartNotification.body2",
-                                            [productName], 1);
-
-    let clickCallback = (subject, topic, data) => {
-      if (topic != "alertclickcallback")
-        return;
-      this._openPreferences("sync");
-    }
-    AlertsService.showAlertNotification(null, title, body, true, null, clickCallback);
-  },
-
-  _migrateUI: function BG__migrateUI() {
-    const UI_VERSION = 43;
-    const BROWSER_DOCURL = "chrome://browser/content/browser.xul";
-
-    let currentUIVersion;
-    if (Services.prefs.prefHasUserValue("browser.migration.version")) {
-      currentUIVersion = Services.prefs.getIntPref("browser.migration.version");
-    } else {
-      // This is a new profile, nothing to migrate.
-      Services.prefs.setIntPref("browser.migration.version", UI_VERSION);
-      return;
-    }
-
-    if (currentUIVersion >= UI_VERSION)
-      return;
-
-    let xulStore = Cc["@mozilla.org/xul/xulstore;1"].getService(Ci.nsIXULStore);
-
-    if (currentUIVersion < 9) {
-      // This code adds the customizable downloads buttons.
-      let currentset = xulStore.getValue(BROWSER_DOCURL, "nav-bar", "currentset");
-
-      // Since the Downloads button is located in the navigation bar by default,
-      // migration needs to happen only if the toolbar was customized using a
-      // previous UI version, and the button was not already placed on the
-      // toolbar manually.
-      if (currentset &&
-          currentset.indexOf("downloads-button") == -1) {
-        // The element is added either after the search bar or before the home
-        // button. As a last resort, the element is added just before the
-        // non-customizable window controls.
-        if (currentset.indexOf("search-container") != -1) {
-          currentset = currentset.replace(/(^|,)search-container($|,)/,
-                                          "$1search-container,downloads-button$2")
-        } else if (currentset.indexOf("home-button") != -1) {
-          currentset = currentset.replace(/(^|,)home-button($|,)/,
-                                          "$1downloads-button,home-button$2")
-        } else {
-          currentset = currentset.replace(/(^|,)window-controls($|,)/,
-                                          "$1downloads-button,window-controls$2")
-        }
-        xulStore.setValue(BROWSER_DOCURL, "nav-bar", "currentset", currentset);
-      }
-    }
-
-#ifdef XP_WIN
-    if (currentUIVersion < 10) {
-      // For Windows systems with display set to > 96dpi (i.e. systemDefaultScale
-      // will return a value > 1.0), we want to discard any saved full-zoom settings,
-      // as we'll now be scaling the content according to the system resolution
-      // scale factor (Windows "logical DPI" setting)
-      let sm = Cc["@mozilla.org/gfx/screenmanager;1"].getService(Ci.nsIScreenManager);
-      if (sm.systemDefaultScale > 1.0) {
-        let cps2 = Cc["@mozilla.org/content-pref/service;1"].
-                   getService(Ci.nsIContentPrefService2);
-        cps2.removeByName("browser.content.full-zoom", null);
-      }
-    }
-#endif
-
-    if (currentUIVersion < 11) {
-      Services.prefs.clearUserPref("dom.disable_window_move_resize");
-      Services.prefs.clearUserPref("dom.disable_window_flip");
-      Services.prefs.clearUserPref("dom.event.contextmenu.enabled");
-      Services.prefs.clearUserPref("javascript.enabled");
-      Services.prefs.clearUserPref("permissions.default.image");
-    }
-
-    if (currentUIVersion < 14) {
-      // DOM Storage doesn't specially handle about: pages anymore.
-      let path = OS.Path.join(OS.Constants.Path.profileDir,
-                              "chromeappsstore.sqlite");
-      OS.File.remove(path);
-    }
-
-    if (currentUIVersion < 16) {
-      xulStore.removeValue(BROWSER_DOCURL, "nav-bar", "collapsed");
-    }
-
-    // Insert the bookmarks-menu-button into the nav-bar if it isn't already
-    // there.
-    if (currentUIVersion < 17) {
-      let currentset = xulStore.getValue(BROWSER_DOCURL, "nav-bar", "currentset");
-      // Need to migrate only if toolbar is customized.
-      if (currentset) {
-        if (!currentset.includes("bookmarks-menu-button")) {
-          // The button isn't in the nav-bar, so let's look for an appropriate
-          // place to put it.
-          if (currentset.includes("bookmarks-menu-button-container")) {
-            currentset = currentset.replace(/(^|,)bookmarks-menu-button-container($|,)/,
-                                            "$1bookmarks-menu-button$2");
-          } else if (currentset.includes("downloads-button")) {
-            currentset = currentset.replace(/(^|,)downloads-button($|,)/,
-                                            "$1bookmarks-menu-button,downloads-button$2");
-          } else if (currentset.includes("home-button")) {
-            currentset = currentset.replace(/(^|,)home-button($|,)/,
-                                            "$1bookmarks-menu-button,home-button$2");
-          } else {
-            // Just append.
-            currentset = currentset.replace(/(^|,)window-controls($|,)/,
-                                            "$1bookmarks-menu-button,window-controls$2")
-          }
-          xulStore.setValue(BROWSER_DOCURL, "nav-bar", "currentset", currentset);
-        }
-      }
-    }
-
-    if (currentUIVersion < 18) {
-      // Remove iconsize and mode from all the toolbars
-      let toolbars = ["navigator-toolbox", "nav-bar", "PersonalToolbar",
-                      "addon-bar", "TabsToolbar", "toolbar-menubar"];
-      for (let resourceName of ["mode", "iconsize"]) {
-        for (let toolbarId of toolbars) {
-          xulStore.removeValue(BROWSER_DOCURL, toolbarId, resourceName);
-        }
-      }
-    }
-
-    if (currentUIVersion < 19) {
-      let detector = null;
-      try {
-        detector = Services.prefs.getComplexValue("intl.charset.detector",
-                                                  Ci.nsIPrefLocalizedString).data;
-      } catch (ex) {}
-      if (!(detector == "" ||
-            detector == "ja_parallel_state_machine" ||
-            detector == "ruprob" ||
-            detector == "ukprob")) {
-        // If the encoding detector pref value is not reachable from the UI,
-        // reset to default (varies by localization).
-        Services.prefs.clearUserPref("intl.charset.detector");
-      }
-    }
-
-    if (currentUIVersion < 20) {
-      // Remove persisted collapsed state from TabsToolbar.
-      xulStore.removeValue(BROWSER_DOCURL, "TabsToolbar", "collapsed");
-    }
-
-    if (currentUIVersion < 23) {
-      const kSelectedEnginePref = "browser.search.selectedEngine";
-      if (Services.prefs.prefHasUserValue(kSelectedEnginePref)) {
-        try {
-          let name = Services.prefs.getComplexValue(kSelectedEnginePref,
-                                                    Ci.nsIPrefLocalizedString).data;
-          Services.search.currentEngine = Services.search.getEngineByName(name);
-        } catch (ex) {}
-      }
-    }
-
-    if (currentUIVersion < 24) {
-      // Reset homepage pref for users who have it set to start.mozilla.org
-      // or google.com/firefox.
-      const HOMEPAGE_PREF = "browser.startup.homepage";
-      if (Services.prefs.prefHasUserValue(HOMEPAGE_PREF)) {
-        const DEFAULT =
-          Services.prefs.getDefaultBranch(HOMEPAGE_PREF)
-                        .getComplexValue("", Ci.nsIPrefLocalizedString).data;
-        let value =
-          Services.prefs.getComplexValue(HOMEPAGE_PREF, Ci.nsISupportsString);
-        let updated =
-          value.data.replace(/https?:\/\/start\.mozilla\.org[^|]*/i, DEFAULT)
-                    .replace(/https?:\/\/(www\.)?google\.[a-z.]+\/firefox[^|]*/i,
-                             DEFAULT);
-        if (updated != value.data) {
-          if (updated == DEFAULT) {
-            Services.prefs.clearUserPref(HOMEPAGE_PREF);
-          } else {
-            value.data = updated;
-            Services.prefs.setComplexValue(HOMEPAGE_PREF,
-                                           Ci.nsISupportsString, value);
-          }
-        }
-      }
-    }
-
-    if (currentUIVersion < 25) {
-      // Make sure the doNotTrack value conforms to the conversion from
-      // three-state to two-state. (This reverts a setting of "please track me"
-      // to the default "don't say anything").
-      try {
-        if (Services.prefs.getBoolPref("privacy.donottrackheader.enabled") &&
-            Services.prefs.getIntPref("privacy.donottrackheader.value") != 1) {
-          Services.prefs.clearUserPref("privacy.donottrackheader.enabled");
-          Services.prefs.clearUserPref("privacy.donottrackheader.value");
-        }
-      } catch (ex) {}
-    }
-
-    if (currentUIVersion < 26) {
-      // Refactor urlbar suggestion preferences to make it extendable and
-      // allow new suggestion types (e.g: search suggestions).
-      let types = ["history", "bookmark", "openpage"];
-      let defaultBehavior = 0;
-      try {
-        defaultBehavior = Services.prefs.getIntPref("browser.urlbar.default.behavior");
-      } catch (ex) {}
-      try {
-        let autocompleteEnabled = Services.prefs.getBoolPref("browser.urlbar.autocomplete.enabled");
-        if (!autocompleteEnabled) {
-          defaultBehavior = -1;
-        }
-      } catch (ex) {}
-
-      // If the default behavior is:
-      //    -1  - all new "...suggest.*" preferences will be false
-      //     0  - all new "...suggest.*" preferences will use the default values
-      //   > 0  - all new "...suggest.*" preferences will be inherited
-      for (let type of types) {
-        let prefValue = defaultBehavior == 0;
-        if (defaultBehavior > 0) {
-          prefValue = !!(defaultBehavior & Ci.mozIPlacesAutoComplete["BEHAVIOR_" + type.toUpperCase()]);
-        }
-        Services.prefs.setBoolPref("browser.urlbar.suggest." + type, prefValue);
-      }
-
-      // Typed behavior will be used only for results from history.
-      if (defaultBehavior != -1 &&
-          !!(defaultBehavior & Ci.mozIPlacesAutoComplete["BEHAVIOR_TYPED"])) {
-        Services.prefs.setBoolPref("browser.urlbar.suggest.history.onlyTyped", true);
-      }
-    }
-
-    if (currentUIVersion < 27) {
-      // Fix up document color use:
-      const kOldColorPref = "browser.display.use_document_colors";
-      if (Services.prefs.prefHasUserValue(kOldColorPref) &&
-          !Services.prefs.getBoolPref(kOldColorPref)) {
-        Services.prefs.setIntPref("browser.display.document_color_use", 2);
-      }
-    }
-
-    if (currentUIVersion < 29) {
-      let group = null;
-      try {
-        group = Services.prefs.getComplexValue("font.language.group",
-                                               Ci.nsIPrefLocalizedString);
-      } catch (ex) {}
-      if (group &&
-          ["tr", "x-baltic", "x-central-euro"].some(g => g == group.data)) {
-        // Latin groups were consolidated.
-        group.data = "x-western";
-        Services.prefs.setComplexValue("font.language.group",
-                                       Ci.nsIPrefLocalizedString, group);
-      }
-    }
-
-    if (currentUIVersion < 30) {
-      // Convert old devedition theme pref to lightweight theme storage
-      let lightweightThemeSelected = false;
-      let selectedThemeID = null;
-      try {
-        lightweightThemeSelected = Services.prefs.prefHasUserValue("lightweightThemes.selectedThemeID");
-        selectedThemeID = Services.prefs.getCharPref("lightweightThemes.selectedThemeID");
-      } catch (e) {}
-
-      let defaultThemeSelected = false;
-      try {
-         defaultThemeSelected = Services.prefs.getCharPref("general.skins.selectedSkin") == "classic/1.0";
-      } catch (e) {}
-
-      // If we are on the devedition channel, the devedition theme is on by
-      // default.  But we need to handle the case where they didn't want it
-      // applied, and unapply the theme.
-      let userChoseToNotUseDeveditionTheme =
-        !defaultThemeSelected ||
-        (lightweightThemeSelected && selectedThemeID != "firefox-devedition@mozilla.org");
-
-      if (userChoseToNotUseDeveditionTheme && selectedThemeID == "firefox-devedition@mozilla.org") {
-        Services.prefs.setCharPref("lightweightThemes.selectedThemeID", "");
-      }
-
-      Services.prefs.clearUserPref("browser.devedition.showCustomizeButton");
-    }
-
-    if (currentUIVersion < 31) {
-      xulStore.removeValue(BROWSER_DOCURL, "bookmarks-menu-button", "class");
-      xulStore.removeValue(BROWSER_DOCURL, "home-button", "class");
-    }
-
-    if (currentUIVersion < 32) {
-      this._notifyNotificationsUpgrade().catch(Cu.reportError);
-    }
-
-    // version 35 migrated tab groups data.
-
-    if (currentUIVersion < 36) {
-      xulStore.removeValue("chrome://passwordmgr/content/passwordManager.xul",
-                           "passwordCol",
-                           "hidden");
-    }
-
-    if (currentUIVersion < 37) {
-      Services.prefs.clearUserPref("browser.sessionstore.restore_on_demand");
-    }
-
-    if (currentUIVersion < 38) {
-      LoginHelper.removeLegacySignonFiles();
-    }
-
-    if (currentUIVersion < 39) {
-      // Remove the 'defaultset' value for all the toolbars
-      let toolbars = ["nav-bar", "PersonalToolbar",
-                      "addon-bar", "TabsToolbar", "toolbar-menubar"];
-      for (let toolbarId of toolbars) {
-        xulStore.removeValue(BROWSER_DOCURL, toolbarId, "defaultset");
-      }
-    }
-
-    if (currentUIVersion < 40) {
-      const kOldSafeBrowsingPref = "browser.safebrowsing.enabled";
-      // Default value is set to true, a user pref means that the pref was
-      // set to false.
-      if (Services.prefs.prefHasUserValue(kOldSafeBrowsingPref) &&
-          !Services.prefs.getBoolPref(kOldSafeBrowsingPref)) {
-        Services.prefs.setBoolPref("browser.safebrowsing.phishing.enabled",
-                                   false);
-        // Should just remove support for the pref entirely, even if it's
-        // only in about:config
-        Services.prefs.clearUserPref(kOldSafeBrowsingPref);
-      }
-    }
-
-    if (currentUIVersion < 41) {
-      const Preferences = Cu.import("resource://gre/modules/Preferences.jsm", {}).Preferences;
-      Preferences.resetBranch("loop.");
-    }
-
-    if (currentUIVersion < 42) {
-      let backupFile = Services.dirsvc.get("ProfD", Ci.nsIFile);
-      backupFile.append("tabgroups-session-backup.json");
-      OS.File.remove(backupFile.path, {ignoreAbsent: true}).catch(ex => Cu.reportError(ex));
-    }
-
-    if (currentUIVersion < 43) {
-      let currentTheme = null;
-      try {
-        currentTheme = Services.prefs.getCharPref("lightweightThemes.selectedThemeID");
-      } catch (e) {}
-      if (currentTheme == "firefox-devedition@mozilla.org") {
-        let newTheme = Services.prefs.getCharPref("devtools.theme") == "dark" ?
-          "firefox-compact-dark@mozilla.org" : "firefox-compact-light@mozilla.org";
-        Services.prefs.setCharPref("lightweightThemes.selectedThemeID", newTheme);
-      }
-    }
-
-    // Update the migration version.
-    Services.prefs.setIntPref("browser.migration.version", UI_VERSION);
-  },
-
-  _hasExistingNotificationPermission: function BG__hasExistingNotificationPermission() {
-    let enumerator = Services.perms.enumerator;
-    while (enumerator.hasMoreElements()) {
-      let permission = enumerator.getNext().QueryInterface(Ci.nsIPermission);
-      if (permission.type == "desktop-notification") {
-        return true;
-      }
-    }
-    return false;
-  },
-
-  _notifyNotificationsUpgrade: Task.async(function* () {
-    if (!this._hasExistingNotificationPermission()) {
-      return;
-    }
-    yield this._firstWindowReady;
-    function clickCallback(subject, topic, data) {
-      if (topic != "alertclickcallback")
-        return;
-      let win = RecentWindow.getMostRecentBrowserWindow();
-      win.openUILinkIn(data, "tab");
-    }
-    // Show the application icon for XUL notifications. We assume system-level
-    // notifications will include their own icon.
-    let imageURL = this._hasSystemAlertsService() ? "" :
-                   "chrome://branding/content/about-logo.png";
-    let title = gBrowserBundle.GetStringFromName("webNotifications.upgradeTitle");
-    let text = gBrowserBundle.GetStringFromName("webNotifications.upgradeBody");
-    let url = Services.urlFormatter.formatURLPref("app.support.baseURL") +
-      "push#w_upgraded-notifications";
-
-    AlertsService.showAlertNotification(imageURL, title, text,
-                                        true, url, clickCallback);
-  }),
-
-  _hasSystemAlertsService() {
-    try {
-      return !!Cc["@mozilla.org/system-alerts-service;1"].getService(
-        Ci.nsIAlertsService);
-    } catch (e) {}
-    return false;
-  },
-
-  // ------------------------------
-  // public nsIBrowserGlue members
-  // ------------------------------
-
-  sanitize: function BG_sanitize(aParentWindow) {
-    this._sanitizer.sanitize(aParentWindow);
-  },
-
-  ensurePlacesDefaultQueriesInitialized: Task.async(function* () {
-    // This is the current smart bookmarks version, it must be increased every
-    // time they change.
-    // When adding a new smart bookmark below, its newInVersion property must
-    // be set to the version it has been added in.  We will compare its value
-    // to users' smartBookmarksVersion and add new smart bookmarks without
-    // recreating old deleted ones.
-    const SMART_BOOKMARKS_VERSION = 8;
-    const SMART_BOOKMARKS_ANNO = "Places/SmartBookmark";
-    const SMART_BOOKMARKS_PREF = "browser.places.smartBookmarksVersion";
-
-    // TODO bug 399268: should this be a pref?
-    const MAX_RESULTS = 10;
-
-    // Get current smart bookmarks version.  If not set, create them.
-    let smartBookmarksCurrentVersion = 0;
-    try {
-      smartBookmarksCurrentVersion = Services.prefs.getIntPref(SMART_BOOKMARKS_PREF);
-    } catch (ex) {}
-
-    // If version is current, or smart bookmarks are disabled, bail out.
-    if (smartBookmarksCurrentVersion == -1 ||
-        smartBookmarksCurrentVersion >= SMART_BOOKMARKS_VERSION) {
-      return;
-    }
-
-    try {
-      let menuIndex = 0;
-      let toolbarIndex = 0;
-      let bundle = Services.strings.createBundle("chrome://browser/locale/places/places.properties");
-      let queryOptions = Ci.nsINavHistoryQueryOptions;
-
-      let smartBookmarks = {
-        MostVisited: {
-          title: bundle.GetStringFromName("mostVisitedTitle"),
-          url: "place:sort=" + queryOptions.SORT_BY_VISITCOUNT_DESCENDING +
-                    "&maxResults=" + MAX_RESULTS,
-          parentGuid: PlacesUtils.bookmarks.toolbarGuid,
-          newInVersion: 1
-        },
-        RecentTags: {
-          title: bundle.GetStringFromName("recentTagsTitle"),
-          url: "place:type=" + queryOptions.RESULTS_AS_TAG_QUERY +
-                    "&sort=" + queryOptions.SORT_BY_LASTMODIFIED_DESCENDING +
-                    "&maxResults=" + MAX_RESULTS,
-          parentGuid: PlacesUtils.bookmarks.menuGuid,
-          newInVersion: 1
-        },
-      };
-
-      // Set current guid, parentGuid and index of existing Smart Bookmarks.
-      // We will use those to create a new version of the bookmark at the same
-      // position.
-      let smartBookmarkItemIds = PlacesUtils.annotations.getItemsWithAnnotation(SMART_BOOKMARKS_ANNO);
-      for (let itemId of smartBookmarkItemIds) {
-        let queryId = PlacesUtils.annotations.getItemAnnotation(itemId, SMART_BOOKMARKS_ANNO);
-        if (queryId in smartBookmarks) {
-          // Known smart bookmark.
-          let smartBookmark = smartBookmarks[queryId];
-          smartBookmark.guid = yield PlacesUtils.promiseItemGuid(itemId);
-
-          if (!smartBookmark.url) {
-            yield PlacesUtils.bookmarks.remove(smartBookmark.guid);
-            continue;
-          }
-
-          let bm = yield PlacesUtils.bookmarks.fetch(smartBookmark.guid);
-          smartBookmark.parentGuid = bm.parentGuid;
-          smartBookmark.index = bm.index;
-        } else {
-          // We don't remove old Smart Bookmarks because user could still
-          // find them useful, or could have personalized them.
-          // Instead we remove the Smart Bookmark annotation.
-          PlacesUtils.annotations.removeItemAnnotation(itemId, SMART_BOOKMARKS_ANNO);
-        }
-      }
-
-      for (let queryId of Object.keys(smartBookmarks)) {
-        let smartBookmark = smartBookmarks[queryId];
-
-        // We update or create only changed or new smart bookmarks.
-        // Also we respect user choices, so we won't try to create a smart
-        // bookmark if it has been removed.
-        if (smartBookmarksCurrentVersion > 0 &&
-            smartBookmark.newInVersion <= smartBookmarksCurrentVersion &&
-            !smartBookmark.guid || !smartBookmark.url)
-          continue;
-
-        // Remove old version of the smart bookmark if it exists, since it
-        // will be replaced in place.
-        if (smartBookmark.guid) {
-          yield PlacesUtils.bookmarks.remove(smartBookmark.guid);
-        }
-
-        // Create the new smart bookmark and store its updated guid.
-        if (!("index" in smartBookmark)) {
-          if (smartBookmark.parentGuid == PlacesUtils.bookmarks.toolbarGuid)
-            smartBookmark.index = toolbarIndex++;
-          else if (smartBookmark.parentGuid == PlacesUtils.bookmarks.menuGuid)
-            smartBookmark.index = menuIndex++;
-        }
-        smartBookmark = yield PlacesUtils.bookmarks.insert(smartBookmark);
-        let itemId = yield PlacesUtils.promiseItemId(smartBookmark.guid);
-        PlacesUtils.annotations.setItemAnnotation(itemId,
-                                                  SMART_BOOKMARKS_ANNO,
-                                                  queryId, 0,
-                                                  PlacesUtils.annotations.EXPIRE_NEVER);
-      }
-
-      // If we are creating all Smart Bookmarks from ground up, add a
-      // separator below them in the bookmarks menu.
-      if (smartBookmarksCurrentVersion == 0 &&
-          smartBookmarkItemIds.length == 0) {
-        let bm = yield PlacesUtils.bookmarks.fetch({ parentGuid: PlacesUtils.bookmarks.menuGuid,
-                                                     index: menuIndex });
-        // Don't add a separator if the menu was empty or there is one already.
-        if (bm && bm.type != PlacesUtils.bookmarks.TYPE_SEPARATOR) {
-          yield PlacesUtils.bookmarks.insert({ type: PlacesUtils.bookmarks.TYPE_SEPARATOR,
-                                               parentGuid: PlacesUtils.bookmarks.menuGuid,
-                                               index: menuIndex });
-        }
-      }
-    } catch (ex) {
-      Cu.reportError(ex);
-    } finally {
-      Services.prefs.setIntPref(SMART_BOOKMARKS_PREF, SMART_BOOKMARKS_VERSION);
-      Services.prefs.savePrefFile(null);
-    }
-  }),
-
-  /**
-   * Open preferences even if there are no open windows.
-   */
-  _openPreferences(...args) {
-    if (Services.appShell.hiddenDOMWindow.openPreferences) {
-      Services.appShell.hiddenDOMWindow.openPreferences(...args);
-      return;
-    }
-
-    let chromeWindow = RecentWindow.getMostRecentBrowserWindow();
-    chromeWindow.openPreferences(...args);
-  },
-
-  /**
-   * Called as an observer when Sync's "display URIs" notification is fired.
-   *
-   * We open the received URIs in background tabs.
-   */
-  _onDisplaySyncURIs: function _onDisplaySyncURIs(data) {
-    try {
-      // The payload is wrapped weirdly because of how Sync does notifications.
-      const URIs = data.wrappedJSObject.object;
-
-      const findWindow = () => RecentWindow.getMostRecentBrowserWindow({private: false});
-
-      // win can be null, but it's ok, we'll assign it later in openTab()
-      let win = findWindow();
-
-      const openTab = URI => {
-        let tab;
-        if (!win) {
-          Services.appShell.hiddenDOMWindow.open(URI.uri);
-          win = findWindow();
-          tab = win.gBrowser.tabs[0];
-        } else {
-          tab = win.gBrowser.addTab(URI.uri);
-        }
-        tab.setAttribute("attention", true);
-        return tab;
-      };
-
-      const firstTab = openTab(URIs[0]);
-      URIs.slice(1).forEach(URI => openTab(URI));
-
-      let title, body;
-      const deviceName = Weave.Service.clientsEngine.getClientName(URIs[0].clientId);
-      const bundle = Services.strings.createBundle("chrome://browser/locale/accounts.properties");
-      if (URIs.length == 1) {
-        // Due to bug 1305895, tabs from iOS may not have device information, so
-        // we have separate strings to handle those cases. (See Also
-        // unnamedTabsArrivingNotificationNoDevice.body below)
-        if (deviceName) {
-          title = bundle.formatStringFromName("tabArrivingNotificationWithDevice.title", [deviceName], 1);
-        } else {
-          title = bundle.GetStringFromName("tabArrivingNotification.title");
-        }
-        // Use the page URL as the body. We strip the fragment and query to
-        // reduce size, and also format it the same way that the url bar would.
-        body = URIs[0].uri.replace(/[?#].*$/, "");
-        if (win.gURLBar) {
-          body = win.gURLBar.trimValue(body);
-        }
-      } else {
-        title = bundle.GetStringFromName("tabsArrivingNotification.title");
-        const allSameDevice = URIs.every(URI => URI.clientId == URIs[0].clientId);
-        const unknownDevice = allSameDevice && !deviceName;
-        let tabArrivingBody;
-        if (unknownDevice) {
-          tabArrivingBody = "unnamedTabsArrivingNotificationNoDevice.body";
-        } else if (allSameDevice) {
-          tabArrivingBody = "unnamedTabsArrivingNotification2.body";
-        } else {
-          tabArrivingBody = "unnamedTabsArrivingNotificationMultiple2.body"
-        }
-
-        body = bundle.GetStringFromName(tabArrivingBody);
-        body = PluralForm.get(URIs.length, body);
-        body = body.replace("#1", URIs.length);
-        body = body.replace("#2", deviceName);
-      }
-
-      const clickCallback = (obsSubject, obsTopic, obsData) => {
-        if (obsTopic == "alertclickcallback") {
-          win.gBrowser.selectedTab = firstTab;
-        }
-      }
-
-      // Specify an icon because on Windows no icon is shown at the moment
-      let imageURL;
-#ifdef XP_WIN
-      imageURL = "chrome://branding/content/icon64.png";
-#endif
-      AlertsService.showAlertNotification(imageURL, title, body, true, null, clickCallback);
-    } catch (ex) {
-      Cu.reportError("Error displaying tab(s) received by Sync: " + ex);
-    }
-  },
-
-  _onDeviceConnected(deviceName) {
-    let accountsBundle = Services.strings.createBundle(
-      "chrome://browser/locale/accounts.properties"
-    );
-    let title = accountsBundle.GetStringFromName("deviceConnectedTitle");
-    let body = accountsBundle.formatStringFromName("deviceConnectedBody", [deviceName], 1);
-    let url = Services.urlFormatter.formatURLPref("identity.fxaccounts.settings.devices.uri");
-
-    function clickCallback(subject, topic, data) {
-      if (topic != "alertclickcallback")
-        return;
-      let win = RecentWindow.getMostRecentBrowserWindow({private: false});
-      if (!win) {
-        Services.appShell.hiddenDOMWindow.open(url);
-      } else {
-        win.gBrowser.addTab(url);
-      }
-    }
-
-    try {
-      AlertsService.showAlertNotification(null, title, body, true, url, clickCallback);
-    } catch (ex) {
-      Cu.reportError("Error notifying of a new Sync device: " + ex);
-    }
-  },
-
-  _onDeviceDisconnected() {
-    let bundle = Services.strings.createBundle("chrome://browser/locale/accounts.properties");
-    let title = bundle.GetStringFromName("deviceDisconnectedNotification.title");
-    let body = bundle.GetStringFromName("deviceDisconnectedNotification.body");
-
-    let clickCallback = (subject, topic, data) => {
-      if (topic != "alertclickcallback")
-        return;
-      this._openPreferences("sync");
-    }
-    AlertsService.showAlertNotification(null, title, body, true, null, clickCallback);
-  },
-
-  _handleFlashHang() {
-    ++this._flashHangCount;
-    if (this._flashHangCount < 2) {
-      return;
-    }
-    // protected mode only applies to win32
-    if (Services.appinfo.XPCOMABI != "x86-msvc") {
-      return;
-    }
-
-    if (Services.prefs.getBoolPref("dom.ipc.plugins.flash.disable-protected-mode")) {
-      return;
-    }
-    if (!Services.prefs.getBoolPref("browser.flash-protected-mode-flip.enable")) {
-      return;
-    }
-    if (Services.prefs.getBoolPref("browser.flash-protected-mode-flip.done")) {
-      return;
-    }
-    Services.prefs.setBoolPref("dom.ipc.plugins.flash.disable-protected-mode", true);
-    Services.prefs.setBoolPref("browser.flash-protected-mode-flip.done", true);
-
-    let win = RecentWindow.getMostRecentBrowserWindow();
-    if (!win) {
-      return;
-    }
-    let productName = gBrandBundle.GetStringFromName("brandShortName");
-    let message = win.gNavigatorBundle.
-      getFormattedString("flashHang.message", [productName]);
-    let buttons = [{
-      label: win.gNavigatorBundle.getString("flashHang.helpButton.label"),
-      accessKey: win.gNavigatorBundle.getString("flashHang.helpButton.accesskey"),
-      callback() {
-        win.openUILinkIn("https://support.mozilla.org/kb/flash-protected-mode-autodisabled", "tab");
-      }
-    }];
-    let nb = win.document.getElementById("global-notificationbox");
-    nb.appendNotification(message, "flash-hang", null,
-                          nb.PRIORITY_INFO_MEDIUM, buttons);
-  },
-
-  // for XPCOM
-  classID:          Components.ID("{eab9012e-5f74-4cbc-b2b5-a590235513cc}"),
-
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
-                                         Ci.nsISupportsWeakReference,
-                                         Ci.nsIBrowserGlue]),
-
-  // redefine the default factory for XPCOMUtils
-  _xpcom_factory: BrowserGlueServiceFactory,
-}
-
-/**
- * ContentPermissionIntegration is responsible for showing the user
- * simple permission prompts when content requests additional
- * capabilities.
- *
- * While there are some built-in permission prompts, createPermissionPrompt
- * can also be overridden by system add-ons or tests to provide new ones.
- *
- * This override ability is provided by Integration.jsm. See
- * PermissionUI.jsm for an example of how to provide a new prompt
- * from an add-on.
- */
-const ContentPermissionIntegration = {
-  /**
-   * Creates a PermissionPrompt for a given permission type and
-   * nsIContentPermissionRequest.
-   *
-   * @param {string} type
-   *        The type of the permission request from content. This normally
-   *        matches the "type" field of an nsIContentPermissionType, but it
-   *        can be something else if the permission does not use the
-   *        nsIContentPermissionRequest model. Note that this type might also
-   *        be different from the permission key used in the permissions
-   *        database.
-   *        Example: "geolocation"
-   * @param {nsIContentPermissionRequest} request
-   *        The request for a permission from content.
-   * @return {PermissionPrompt} (see PermissionUI.jsm),
-   *         or undefined if the type cannot be handled.
-   */
-  createPermissionPrompt(type, request) {
-    switch (type) {
-      case "geolocation": {
-        return new PermissionUI.GeolocationPermissionPrompt(request);
-      }
-      case "desktop-notification": {
-        return new PermissionUI.DesktopNotificationPermissionPrompt(request);
-      }
-    }
-    return undefined;
-  },
-};
-
-function ContentPermissionPrompt() {}
-
-ContentPermissionPrompt.prototype = {
-  classID:          Components.ID("{d8903bf6-68d5-4e97-bcd1-e4d3012f721a}"),
-
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPermissionPrompt]),
-
-  /**
-   * This implementation of nsIContentPermissionPrompt.prompt ensures
-   * that there's only one nsIContentPermissionType in the request,
-   * and that it's of type nsIContentPermissionType. Failing to
-   * satisfy either of these conditions will result in this method
-   * throwing NS_ERRORs. If the combined ContentPermissionIntegration
-   * cannot construct a prompt for this particular request, an
-   * NS_ERROR_FAILURE will be thrown.
-   *
-   * Any time an error is thrown, the nsIContentPermissionRequest is
-   * cancelled automatically.
-   *
-   * @param {nsIContentPermissionRequest} request
-   *        The request that we're to show a prompt for.
-   */
-  prompt(request) {
-    try {
-      // Only allow exactly one permission request here.
-      let types = request.types.QueryInterface(Ci.nsIArray);
-      if (types.length != 1) {
-        throw Components.Exception(
-          "Expected an nsIContentPermissionRequest with only 1 type.",
-          Cr.NS_ERROR_UNEXPECTED);
-      }
-
-      let type = types.queryElementAt(0, Ci.nsIContentPermissionType).type;
-      let combinedIntegration =
-        Integration.contentPermission.getCombined(ContentPermissionIntegration);
-
-      let permissionPrompt =
-        combinedIntegration.createPermissionPrompt(type, request);
-      if (!permissionPrompt) {
-        throw Components.Exception(
-          `Failed to handle permission of type ${type}`,
-          Cr.NS_ERROR_FAILURE);
-      }
-
-      permissionPrompt.prompt();
-    } catch (ex) {
-      Cu.reportError(ex);
-      request.cancel();
-      throw ex;
-    }
-  },
-};
-
-var DefaultBrowserCheck = {
-  get OPTIONPOPUP() { return "defaultBrowserNotificationPopup" },
-  _setAsDefaultTimer: null,
-  _setAsDefaultButtonClickStartTime: 0,
-
-  closePrompt(aNode) {
-    if (this._notification) {
-      this._notification.close();
-    }
-  },
-
-  setAsDefault() {
-    let claimAllTypes = true;
-    let setAsDefaultError = false;
-#ifdef XP_WIN
-    try {
-      // In Windows 8+, the UI for selecting default protocol is much
-      // nicer than the UI for setting file type associations. So we
-      // only show the protocol association screen on Windows 8+.
-      // Windows 8 is version 6.2.
-      let version = Services.sysinfo.getProperty("version");
-      claimAllTypes = (parseFloat(version) < 6.2);
-    } catch (ex) { }
-#endif
-    try {
-      ShellService.setDefaultBrowser(claimAllTypes, false);
-
-      if (this._setAsDefaultTimer) {
-        this._setAsDefaultTimer.cancel();
-      }
-
-      this._setAsDefaultButtonClickStartTime = Math.floor(Date.now() / 1000);
-      this._setAsDefaultTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-      this._setAsDefaultTimer.init(() => {
-        let isDefault = false;
-        let isDefaultError = false;
-        try {
-          isDefault = ShellService.isDefaultBrowser(true, false);
-        } catch (ex) {
-          isDefaultError = true;
-        }
-
-        let now = Math.floor(Date.now() / 1000);
-        let runTime = now - this._setAsDefaultButtonClickStartTime;
-        if (isDefault || runTime > 600) {
-          this._setAsDefaultTimer.cancel();
-          this._setAsDefaultTimer = null;
-          Services.telemetry.getHistogramById("BROWSER_SET_DEFAULT_TIME_TO_COMPLETION_SECONDS")
-                            .add(runTime);
-        }
-        Services.telemetry.getHistogramById("BROWSER_IS_USER_DEFAULT_ERROR")
-                          .add(isDefaultError);
-      }, 1000, Ci.nsITimer.TYPE_REPEATING_SLACK);
-    } catch (ex) {
-      setAsDefaultError = true;
-      Cu.reportError(ex);
-    }
-    // Here BROWSER_IS_USER_DEFAULT and BROWSER_SET_USER_DEFAULT_ERROR appear
-    // to be inverse of each other, but that is only because this function is
-    // called when the browser is set as the default. During startup we record
-    // the BROWSER_IS_USER_DEFAULT value without recording BROWSER_SET_USER_DEFAULT_ERROR.
-    Services.telemetry.getHistogramById("BROWSER_IS_USER_DEFAULT")
-                      .add(!setAsDefaultError);
-    Services.telemetry.getHistogramById("BROWSER_SET_DEFAULT_ERROR")
-                      .add(setAsDefaultError);
-  },
-
-  _createPopup(win, notNowStrings, neverStrings) {
-    let doc = win.document;
-    let popup = doc.createElement("menupopup");
-    popup.id = this.OPTIONPOPUP;
-
-    let notNowItem = doc.createElement("menuitem");
-    notNowItem.id = "defaultBrowserNotNow";
-    notNowItem.setAttribute("label", notNowStrings.label);
-    notNowItem.setAttribute("accesskey", notNowStrings.accesskey);
-    popup.appendChild(notNowItem);
-
-    let neverItem = doc.createElement("menuitem");
-    neverItem.id = "defaultBrowserNever";
-    neverItem.setAttribute("label", neverStrings.label);
-    neverItem.setAttribute("accesskey", neverStrings.accesskey);
-    popup.appendChild(neverItem);
-
-    popup.addEventListener("command", this);
-
-    let popupset = doc.getElementById("mainPopupSet");
-    popupset.appendChild(popup);
-  },
-
-  handleEvent(event) {
-    if (event.type == "command") {
-      if (event.target.id == "defaultBrowserNever") {
-        ShellService.shouldCheckDefaultBrowser = false;
-      }
-      this.closePrompt();
-    }
-  },
-
-  prompt(win) {
-    let useNotificationBar = Services.prefs.getBoolPref("browser.defaultbrowser.notificationbar");
-
-    let brandBundle = win.document.getElementById("bundle_brand");
-    let brandShortName = brandBundle.getString("brandShortName");
-
-    let shellBundle = win.document.getElementById("bundle_shell");
-    let buttonPrefix = "setDefaultBrowser" + (useNotificationBar ? "" : "Alert");
-    let yesButton = shellBundle.getFormattedString(buttonPrefix + "Confirm.label",
-                                                   [brandShortName]);
-    let notNowButton = shellBundle.getString(buttonPrefix + "NotNow.label");
-
-    if (useNotificationBar) {
-      let promptMessage = shellBundle.getFormattedString("setDefaultBrowserMessage2",
-                                                         [brandShortName]);
-      let optionsMessage = shellBundle.getString("setDefaultBrowserOptions.label");
-      let optionsKey = shellBundle.getString("setDefaultBrowserOptions.accesskey");
-
-      let neverLabel = shellBundle.getString("setDefaultBrowserNever.label");
-      let neverKey = shellBundle.getString("setDefaultBrowserNever.accesskey");
-
-      let yesButtonKey = shellBundle.getString("setDefaultBrowserConfirm.accesskey");
-      let notNowButtonKey = shellBundle.getString("setDefaultBrowserNotNow.accesskey");
-
-      let notificationBox = win.document.getElementById("high-priority-global-notificationbox");
-
-      this._createPopup(win, {
-        label: notNowButton,
-        accesskey: notNowButtonKey
-      }, {
-        label: neverLabel,
-        accesskey: neverKey
-      });
-
-      let buttons = [
-        {
-          label: yesButton,
-          accessKey: yesButtonKey,
-          callback: () => {
-            this.setAsDefault();
-            this.closePrompt();
-          }
-        },
-        {
-          label: optionsMessage,
-          accessKey: optionsKey,
-          popup: this.OPTIONPOPUP
-        }
-      ];
-
-      let iconPixels = win.devicePixelRatio > 1 ? "32" : "16";
-      let iconURL = "chrome://branding/content/icon" + iconPixels + ".png";
-      const priority = notificationBox.PRIORITY_WARNING_HIGH;
-      let callback = this._onNotificationEvent.bind(this);
-      this._notification = notificationBox.appendNotification(promptMessage, "default-browser",
-                                                              iconURL, priority, buttons,
-                                                              callback);
-    } else {
-      // Modal prompt
-      let promptTitle = shellBundle.getString("setDefaultBrowserTitle");
-      let promptMessage = shellBundle.getFormattedString("setDefaultBrowserMessage",
-                                                         [brandShortName]);
-      let askLabel = shellBundle.getFormattedString("setDefaultBrowserDontAsk",
-                                                    [brandShortName]);
-
-      let ps = Services.prompt;
-      let shouldAsk = { value: true };
-      let buttonFlags = (ps.BUTTON_TITLE_IS_STRING * ps.BUTTON_POS_0) +
-                        (ps.BUTTON_TITLE_IS_STRING * ps.BUTTON_POS_1) +
-                        ps.BUTTON_POS_0_DEFAULT;
-      let rv = ps.confirmEx(win, promptTitle, promptMessage, buttonFlags,
-                            yesButton, notNowButton, null, askLabel, shouldAsk);
-      if (rv == 0) {
-        this.setAsDefault();
-      } else if (!shouldAsk.value) {
-        ShellService.shouldCheckDefaultBrowser = false;
-      }
-
-      try {
-        let resultEnum = rv * 2 + shouldAsk.value;
-        Services.telemetry.getHistogramById("BROWSER_SET_DEFAULT_RESULT")
-                          .add(resultEnum);
-      } catch (ex) { /* Don't break if Telemetry is acting up. */ }
-    }
-  },
-
-  _onNotificationEvent(eventType) {
-    if (eventType == "removed") {
-      let doc = this._notification.ownerDocument;
-      let popup = doc.getElementById(this.OPTIONPOPUP);
-      popup.removeEventListener("command", this);
-      popup.remove();
-      delete this._notification;
-    }
-  },
-};
-
-var E10SAccessibilityCheck = {
-  // tracks when an a11y init observer fires prior to the
-  // first window being opening.
-  _wantsPrompt: false,
-
-  init() {
-    Services.obs.addObserver(this, "a11y-init-or-shutdown", true);
-    Services.obs.addObserver(this, "quit-application-granted", true);
-  },
-
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
-
-  get forcedOn() {
-    try {
-      return Services.prefs.getBoolPref("browser.tabs.remote.force-enable");
-    } catch (e) {}
-    return false;
-  },
-
-  observe(subject, topic, data) {
-    switch (topic) {
-      case "quit-application-granted":
-        // Tag the profile with a11y load state. We use this in nsAppRunner
-        // checks on the next start.
-        Services.prefs.setBoolPref("accessibility.loadedInLastSession",
-                                   Services.appinfo.accessibilityEnabled);
-        break;
-      case "a11y-init-or-shutdown":
-        if (data == "1") {
-          // Update this so users can check this while still running
-          Services.prefs.setBoolPref("accessibility.loadedInLastSession", true);
-          this._showE10sAccessibilityWarning();
-        }
-        break;
-    }
-  },
-
-  onWindowsRestored() {
-    if (this._wantsPrompt) {
-      this._wantsPrompt = false;
-      this._showE10sAccessibilityWarning();
-    }
-  },
-
-  _warnedAboutAccessibility: false,
-
-  _showE10sAccessibilityWarning() {
-    // We don't prompt about a11y incompat if e10s is off.
-    if (!Services.appinfo.browserTabsRemoteAutostart) {
-      return;
-    }
-
-    // If the user set the forced pref and it's true, ignore a11y init.
-    // If the pref doesn't exist or if it's false, prompt.
-    if (this.forcedOn) {
-      return;
-    }
-
-    // Only prompt once per session
-    if (this._warnedAboutAccessibility) {
-      return;
-    }
-    this._warnedAboutAccessibility = true;
-
-    let win = RecentWindow.getMostRecentBrowserWindow();
-    if (!win || !win.gBrowser || !win.gBrowser.selectedBrowser) {
-      Services.console.logStringMessage(
-          "Accessibility support is partially disabled due to compatibility issues with new features.");
-      this._wantsPrompt = true;
-      this._warnedAboutAccessibility = false;
-      return;
-    }
-    let browser = win.gBrowser.selectedBrowser;
-
-    // We disable a11y for content and prompt on the chrome side letting
-    // a11y users know they need to disable e10s and restart.
-    let promptMessage = win.gNavigatorBundle.getFormattedString(
-                          "e10s.accessibilityNotice.mainMessage2",
-                          [gBrandBundle.GetStringFromName("brandShortName")]
-                        );
-    let notification;
-    let restartCallback  = 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
-      }
-      // Restart the browser
-      Services.startup.quit(Services.startup.eAttemptQuit | Services.startup.eRestart);
-    };
-    // main option: an Ok button, keeps running with content accessibility disabled
-    let mainAction = {
-      label: win.gNavigatorBundle.getString("e10s.accessibilityNotice.acceptButton.label"),
-      accessKey: win.gNavigatorBundle.getString("e10s.accessibilityNotice.acceptButton.accesskey"),
-      callback() {
-        // If the user invoked the button option remove the notification,
-        // otherwise keep the alert icon around in the address bar.
-        notification.remove();
-      },
-      dismiss: true
-    };
-    // secondary option: a restart now button. When we restart e10s will be disabled due to
-    // accessibility having been loaded in the previous session.
-    let secondaryActions = [{
-      label: win.gNavigatorBundle.getString("e10s.accessibilityNotice.enableAndRestart.label"),
-      accessKey: win.gNavigatorBundle.getString("e10s.accessibilityNotice.enableAndRestart.accesskey"),
-      callback: restartCallback,
-    }];
-    let options = {
-      popupIconURL: "chrome://browser/skin/e10s-64@2x.png",
-      learnMoreURL: Services.urlFormatter.formatURLPref("app.support.e10sAccessibilityUrl"),
-      persistent: true,
-      persistWhileVisible: true,
-    };
-
-    notification =
-      win.PopupNotifications.show(browser, "a11y_enabled_with_e10s",
-                                  promptMessage, null, mainAction,
-                                  secondaryActions, options);
-  },
-};
-
-var components = [BrowserGlue, ContentPermissionPrompt];
-this.NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
-
-
-// Listen for UITour messages.
-// Do it here instead of the UITour module itself so that the UITour module is lazy loaded
-// when the first message is received.
-var globalMM = Cc["@mozilla.org/globalmessagemanager;1"].getService(Ci.nsIMessageListenerManager);
-globalMM.addMessageListener("UITour:onPageEvent", function(aMessage) {
-  UITour.onPageEvent(aMessage, aMessage.data);
-});