Merge branch 'master' into 816

113 files changed, 134 insertions, 12836 deletions

diff --git a/application/basilisk/Makefile.in b/application/basilisk/Makefile.in
index 2eb9e708f..92527eaa8 100644
--- a/application/basilisk/Makefile.in
+++ b/application/basilisk/Makefile.in
@@ -10,7 +10,4 @@ ifdef MAKENSISU
 # uninstaller is included with the application for mar file generation.
 libs::
 	$(MAKE) -C installer/windows uninstaller
-ifdef MOZ_MAINTENANCE_SERVICE
-	$(MAKE) -C installer/windows maintenanceservice_installer
-endif
 endif
diff --git a/application/basilisk/app/permissions b/application/basilisk/app/permissions
index cf0aa22fb..cc5535f21 100644
--- a/application/basilisk/app/permissions
+++ b/application/basilisk/app/permissions
@@ -7,6 +7,8 @@
 # See nsPermissionManager.cpp for more...

 

 # XPInstall

+origin	install	1	http://addons.basilisk-browser.org

+origin	install	1	https://addons.basilisk-browser.org

 origin	install	1	https://addons.mozilla.org

 origin	install	1	https://testpilot.firefox.com

 

diff --git a/application/basilisk/app/profile/basilisk.js b/application/basilisk/app/profile/basilisk.js
index ff1f1fbc2..4700eac44 100644
--- a/application/basilisk/app/profile/basilisk.js
+++ b/application/basilisk/app/profile/basilisk.js
@@ -36,24 +36,30 @@ pref("extensions.minCompatibleAppVersion", "4.0");
 
 pref("xpinstall.customConfirmationUI", true);
 
+#define AM_DOMAIN addons.basilisk-browser.org
+#define AM_AUS_ARGS reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=%APP_VERSION%&appOS=%APP_OS%&appABI=%APP_ABI%&locale=%APP_LOCALE%&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%
+
 // Preferences for AMO integration
 pref("extensions.getAddons.cache.enabled", false);
-pref("extensions.getAddons.maxResults", 15);
-pref("extensions.getAddons.get.url", "https://services.addons.mozilla.org/%LOCALE%/firefox/api/%API_VERSION%/search/guid:%IDS%?src=firefox&appOS=%OS%&appVersion=%VERSION%");
-pref("extensions.getAddons.getWithPerformance.url", "https://services.addons.mozilla.org/%LOCALE%/firefox/api/%API_VERSION%/search/guid:%IDS%?src=firefox&appOS=%OS%&appVersion=%VERSION%&tMain=%TIME_MAIN%&tFirstPaint=%TIME_FIRST_PAINT%&tSessionRestored=%TIME_SESSION_RESTORED%");
-pref("extensions.getAddons.search.browseURL", "https://addons.mozilla.org/%LOCALE%/firefox/search?q=%TERMS%&platform=%OS%&appver=%VERSION%");
-pref("extensions.getAddons.search.url", "https://services.addons.mozilla.org/%LOCALE%/firefox/api/%API_VERSION%/search/%TERMS%/all/%MAX_RESULTS%/%OS%/%VERSION%/%COMPATIBILITY_MODE%?src=firefox");
-pref("extensions.webservice.discoverURL", "https://discovery.addons.mozilla.org/%LOCALE%/firefox/discovery/pane/%VERSION%/%OS%/%COMPATIBILITY_MODE%");
-pref("extensions.getAddons.recommended.url", "https://services.addons.mozilla.org/%LOCALE%/%APP%/api/%API_VERSION%/list/recommended/all/%MAX_RESULTS%/%OS%/%VERSION%?src=firefox");
-pref("extensions.getAddons.link.url", "https://addons.mozilla.org/%LOCALE%/firefox/");
+pref("extensions.getAddons.maxResults", 10);
+pref("extensions.getAddons.get.url", "https://@AM_DOMAIN@/?component=integration&type=internal&request=get&addonguid=%IDS%&os=%OS%&version=%VERSION%");
+pref("extensions.getAddons.getWithPerformance.url", "https://@AM_DOMAIN@/?component=integration&type=internal&request=get&addonguid=%IDS%&os=%OS%&version=%VERSION%");
+pref("extensions.getAddons.search.browseURL", "https://@AM_DOMAIN@/search/?terms=%TERMS%");
+pref("extensions.getAddons.search.url", "https://@AM_DOMAIN@/?component=integration&type=internal&request=search&q=%TERMS%&locale=%LOCALE%&os=%OS%&version=%VERSION%");
+pref("extensions.webservice.discoverURL", "http://@AM_DOMAIN@/?component=discover");
+pref("extensions.getAddons.recommended.url", "https://@AM_DOMAIN@/?component=integration&type=internal&request=recommended&locale=%LOCALE%&os=%OS%");
+pref("extensions.getAddons.browseAddons", "http://@AM_DOMAIN@/");
+pref("extensions.getAddons.recommended.browseURL", "https://@AM_DOMAIN@/?component=integration&type=external&request=recommended");
 
 pref("extensions.update.autoUpdateDefault", true);
 
+// Leave these for the moment...
 pref("extensions.hotfix.id", "firefox-hotfix@mozilla.org");
 pref("extensions.hotfix.cert.checkAttributes", true);
 pref("extensions.hotfix.certs.1.sha1Fingerprint", "91:53:98:0C:C1:86:DF:47:8F:35:22:9E:11:C9:A7:31:04:49:A1:AA");
 pref("extensions.hotfix.certs.2.sha1Fingerprint", "39:E7:2B:7A:5B:CF:37:78:F9:5D:4A:E0:53:2D:2F:3D:68:53:C5:60");
 
+// Also, leave this for the moment...
 // Check AUS for system add-on updates.
 pref("extensions.systemAddon.update.url", "https://aus5.mozilla.org/update/3/SystemAddons/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml");
 
@@ -66,11 +72,14 @@ pref("extensions.webextensions.base-content-security-policy", "script-src 'self'
 pref("extensions.webextensions.default-content-security-policy", "script-src 'self'; object-src 'self';");
 
 // Require signed add-ons by default
-pref("xpinstall.signatures.required", true);
+pref("xpinstall.signatures.required", false);
 pref("xpinstall.signatures.devInfoURL", "https://wiki.mozilla.org/Addons/Extension_Signing");
 
 // Dictionary download preference
-pref("browser.dictionaries.download.url", "https://addons.mozilla.org/%LOCALE%/firefox/dictionaries/");
+pref("browser.dictionaries.download.url", "http://@AM_DOMAIN@/dictionaries/");
+
+// Get More Tools link URL
+pref("browser.getdevtools.url","https://@AM_DOMAIN@/?component=integration&type=external&request=devtools");
 
 // At startup, should we check to see if the installation
 // date is older than some threshold
@@ -135,17 +144,15 @@ pref("app.update.url", "https://aus5.mozilla.org/update/6/%PRODUCT%/%VERSION%/%B
 // app.update.url.manual is in branding section
 // app.update.url.details is in branding section
 
+// User-settable override to app.update.url for testing purposes.
+//pref("app.update.url.override", "");
+
 // app.update.interval is in branding section
 // app.update.promptWaitTime is in branding section
 
 // Show the Update Checking/Ready UI when the user was idle for x seconds
 pref("app.update.idletime", 60);
 
-// Whether or not to attempt using the service for updates.
-#ifdef MOZ_MAINTENANCE_SERVICE
-pref("app.update.service.enabled", true);
-#endif
-
 // Symmetric (can be overridden by individual extensions) update preferences.
 // e.g.
 //  extensions.{GUID}.update.enabled
@@ -153,8 +160,8 @@ pref("app.update.service.enabled", true);
 //  .. etc ..
 //
 pref("extensions.update.enabled", true);
-pref("extensions.update.url", "https://versioncheck.addons.mozilla.org/update/VersionCheck.php?reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=52.9&appOS=%APP_OS%&appABI=%APP_ABI%&locale=%APP_LOCALE%&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%");
-pref("extensions.update.background.url", "https://versioncheck-bg.addons.mozilla.org/update/VersionCheck.php?reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=52.9&appOS=%APP_OS%&appABI=%APP_ABI%&locale=%APP_LOCALE%&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%");
+pref("extensions.update.url", "https://@AM_DOMAIN@/?component=aus&@AM_AUS_ARGS@");
+pref("extensions.update.background.url", "https://@AM_DOMAIN@/?component=aus&@AM_AUS_ARGS@");
 pref("extensions.update.interval", 86400);  // Check for updates to Extensions and
                                             // Themes every day
 // Non-symmetric (not shared by extensions) extension-specific [update] preferences
@@ -166,7 +173,7 @@ pref("extensions.{972ce4c6-7e08-4474-a285-3208198ce6fd}.name", "chrome://browser
 pref("extensions.{972ce4c6-7e08-4474-a285-3208198ce6fd}.description", "chrome://browser/locale/browser.properties");
 
 pref("lightweightThemes.update.enabled", true);
-pref("lightweightThemes.getMoreURL", "https://addons.mozilla.org/%LOCALE%/firefox/themes");
+pref("lightweightThemes.getMoreURL", "http://@AM_DOMAIN@/personas/");
 pref("lightweightThemes.recommendedThemes", "[{\"id\":\"recommended-1\",\"homepageURL\":\"https://addons.mozilla.org/firefox/addon/a-web-browser-renaissance/\",\"headerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/1.header.jpg\",\"footerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/1.footer.jpg\",\"textcolor\":\"#000000\",\"accentcolor\":\"#f2d9b1\",\"iconURL\":\"resource:///chrome/browser/content/browser/defaultthemes/1.icon.jpg\",\"previewURL\":\"resource:///chrome/browser/content/browser/defaultthemes/1.preview.jpg\",\"author\":\"Sean.Martell\",\"version\":\"0\"},{\"id\":\"recommended-2\",\"homepageURL\":\"https://addons.mozilla.org/firefox/addon/space-fantasy/\",\"headerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/2.header.jpg\",\"footerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/2.footer.jpg\",\"textcolor\":\"#ffffff\",\"accentcolor\":\"#d9d9d9\",\"iconURL\":\"resource:///chrome/browser/content/browser/defaultthemes/2.icon.jpg\",\"previewURL\":\"resource:///chrome/browser/content/browser/defaultthemes/2.preview.jpg\",\"author\":\"fx5800p\",\"version\":\"1.0\"},{\"id\":\"recommended-3\",\"homepageURL\":\"https://addons.mozilla.org/firefox/addon/linen-light/\",\"headerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/3.header.png\",\"footerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/3.footer.png\",\"accentcolor\":\"#ada8a8\",\"iconURL\":\"resource:///chrome/browser/content/browser/defaultthemes/3.icon.png\",\"previewURL\":\"resource:///chrome/browser/content/browser/defaultthemes/3.preview.png\",\"author\":\"DVemer\",\"version\":\"1.0\"},{\"id\":\"recommended-4\",\"homepageURL\":\"https://addons.mozilla.org/firefox/addon/pastel-gradient/\",\"headerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/4.header.png\",\"footerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/4.footer.png\",\"textcolor\":\"#000000\",\"accentcolor\":\"#000000\",\"iconURL\":\"resource:///chrome/browser/content/browser/defaultthemes/4.icon.png\",\"previewURL\":\"resource:///chrome/browser/content/browser/defaultthemes/4.preview.png\",\"author\":\"darrinhenein\",\"version\":\"1.0\"},{\"id\":\"recommended-5\",\"homepageURL\":\"https://addons.mozilla.org/firefox/addon/carbon-light/\",\"headerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/5.header.png\",\"footerURL\":\"resource:///chrome/browser/content/browser/defaultthemes/5.footer.png\",\"textcolor\":\"#3b3b3b\",\"accentcolor\":\"#2e2e2e\",\"iconURL\":\"resource:///chrome/browser/content/browser/defaultthemes/5.icon.jpg\",\"previewURL\":\"resource:///chrome/browser/content/browser/defaultthemes/5.preview.jpg\",\"author\":\"Jaxivo\",\"version\":\"1.0\"}]");
 
 #if defined(MOZ_ADOBE_EME) || defined(MOZ_WIDEVINE_EME)
@@ -329,7 +336,7 @@ pref("browser.helperApps.deleteTempFileOnExit", true);
 #endif
 
 // search engines URL
-pref("browser.search.searchEnginesURL",      "https://addons.mozilla.org/%LOCALE%/firefox/search-engines/");
+pref("browser.search.searchEnginesURL",      "https://@AM_DOMAIN@/search-plugins/");
 
 // pointer to the default engine name
 pref("browser.search.defaultenginename",      "chrome://browser-region/locale/region.properties");
@@ -1286,17 +1293,6 @@ pref("privacy.trackingprotection.ui.enabled", true);
 pref("privacy.trackingprotection.ui.enabled", false);
 #endif
 
-// Enable Contextual Identity Containers
-#ifdef NIGHTLY_BUILD
-pref("privacy.userContext.enabled", true);
-pref("privacy.userContext.ui.enabled", true);
-pref("privacy.usercontext.about_newtab_segregation.enabled", true);
-#else
-pref("privacy.userContext.enabled", false);
-pref("privacy.userContext.ui.enabled", false);
-pref("privacy.usercontext.about_newtab_segregation.enabled", false);
-#endif
-
 #ifndef RELEASE_OR_BETA
 // At the moment, autostart.2 is used, while autostart.1 is unused.
 // We leave it here set to false to reset users' defaults and allow
@@ -1431,3 +1427,11 @@ pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false);
 // controlling validation are located in /services/sync/services-sync.js
 pref("services.sync.validation.enabled", true);
 #endif
+
+// When a user cancels this number of authentication dialogs coming from
+// a single web page (eTLD+1) in a row, all following authentication dialogs
+// will be blocked (automatically canceled) for that page.
+// This counter is per-tab and per-domain to minimize false positives.
+// The counter resets when the page is reloaded from the UI
+// (content-reloads do NOT clear this to mitigate reloading tricks).
+pref("prompts.authentication_dialog_abuse_limit", 3);
diff --git a/application/basilisk/base/content/aboutRobots-icon.png b/application/basilisk/base/content/aboutRobots-icon.png
deleted file mode 100644
index 1c4899aaf..000000000
--- a/application/basilisk/base/content/aboutRobots-icon.png
+++ /dev/null
diff --git a/application/basilisk/base/content/aboutRobots-widget-left.png b/application/basilisk/base/content/aboutRobots-widget-left.png
deleted file mode 100644
index 3a1e48d5f..000000000
--- a/application/basilisk/base/content/aboutRobots-widget-left.png
+++ /dev/null
diff --git a/application/basilisk/base/content/aboutRobots.xhtml b/application/basilisk/base/content/aboutRobots.xhtml
deleted file mode 100644
index 23fe3ba17..000000000
--- a/application/basilisk/base/content/aboutRobots.xhtml
+++ /dev/null
@@ -1,108 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-
-<!DOCTYPE html [
-  <!ENTITY % htmlDTD
-    PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-    "DTD/xhtml1-strict.dtd">
-  %htmlDTD;
-  <!ENTITY % netErrorDTD
-    SYSTEM "chrome://global/locale/netError.dtd">
-  %netErrorDTD;
-  <!ENTITY % globalDTD
-    SYSTEM "chrome://global/locale/global.dtd">
-  %globalDTD;
-  <!ENTITY % aboutrobotsDTD
-    SYSTEM "chrome://browser/locale/aboutRobots.dtd">
-  %aboutrobotsDTD;
-]>
-
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <title>&robots.pagetitle;</title>
-    <link rel="stylesheet" href="chrome://global/skin/netError.css" type="text/css" media="all" />
-    <link rel="icon" type="image/png" id="favicon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8%2F9hAAAACGFjVEwAAAASAAAAAJNtBPIAAAAaZmNUTAAAAAAAAAAQAAAAEAAAAAAAAAAALuAD6AABhIDeugAAALhJREFUOI2Nk8sNxCAMRDlGohauXFOMpfTiAlxICqAELltHLqlgctg1InzMRhpFAc%2BLGWTnmoeZYamt78zXdZmaQtQMADlnU0OIAlbmJUBEcO4bRKQY2rUXIPmAGnDuG%2FBx3%2FfvOPVaDUg%2BoAPUf1PArIMCSD5glMEsUGaG%2BkyAFWIBaCsKuA%2BHGCNijLgP133XgOEtaPFMy2vUolEGJoCIzBmoRUR9%2B7rxj16DZaW%2FmgtmxnJ8V3oAnApQwNS5zpcAAAAaZmNUTAAAAAEAAAAQAAAAEAAAAAAAAAAAAB4D6AIB52fclgAAACpmZEFUAAAAAjiNY2AYBVhBc3Pzf2LEcGreqcbwH1kDNjHauWAUjAJyAADymxf9WF%2Bu8QAAABpmY1RMAAAAAwAAABAAAAAQAAAAAAAAAAAAHgPoAgEK8Q9%2FAAAAFmZkQVQAAAAEOI1jYBgFo2AUjAIIAAAEEAAB0xIn4wAAABpmY1RMAAAABQAAABAAAAAQAAAAAAAAAAAAHgPoAgHnO30FAAAAQGZkQVQAAAAGOI1jYBieYKcaw39ixHCC%2F6cwFWMTw2rz%2F1MM%2F6Vu%2Ff%2F%2F%2FxTD%2F51qEIwuRjsXILuEGLFRMApgAADhNCsVfozYcAAAABpmY1RMAAAABwAAABAAAAAQAAAAAAAAAAAAHgPoAgEKra7sAAAAFmZkQVQAAAAIOI1jYBgFo2AUjAIIAAAEEAABM9s3hAAAABpmY1RMAAAACQAAABAAAAAQAAAAAAAAAAAAHgPoAgHn3p%2BwAAAAKmZkQVQAAAAKOI1jYBgFWEFzc%2FN%2FYsRwat6pxvAfWQM2Mdq5YBSMAnIAAPKbF%2F1BhPl6AAAAGmZjVEwAAAALAAAAEAAAABAAAAAAAAAAAAAeA%2BgCAQpITFkAAAAWZmRBVAAAAAw4jWNgGAWjYBSMAggAAAQQAAHaszpmAAAAGmZjVEwAAAANAAAAEAAAABAAAAAAAAAAAAAeA%2BgCAeeCPiMAAABAZmRBVAAAAA44jWNgGJ5gpxrDf2LEcIL%2FpzAVYxPDavP%2FUwz%2FpW79%2F%2F%2F%2FFMP%2FnWoQjC5GOxcgu4QYsVEwCmAAAOE0KxUmBL0KAAAAGmZjVEwAAAAPAAAAEAAAABAAAAAAAAAAAAAeA%2BgCAQoU7coAAAAWZmRBVAAAABA4jWNgGAWjYBSMAggAAAQQAAEpOBELAAAAGmZjVEwAAAARAAAAEAAAABAAAAAAAAAAAAAeA%2BgCAeYVWtoAAAAqZmRBVAAAABI4jWNgGAVYQXNz839ixHBq3qnG8B9ZAzYx2rlgFIwCcgAA8psX%2FWvpAecAAAAaZmNUTAAAABMAAAAQAAAAEAAAAAAAAAAAAB4D6AIBC4OJMwAAABZmZEFUAAAAFDiNY2AYBaNgFIwCCAAABBAAAcBQHOkAAAAaZmNUTAAAABUAAAAQAAAAEAAAAAAAAAAAAB4D6AIB5kn7SQAAAEBmZEFUAAAAFjiNY2AYnmCnGsN%2FYsRwgv%2BnMBVjE8Nq8%2F9TDP%2Blbv3%2F%2F%2F8Uw%2F%2BdahCMLkY7FyC7hBixUTAKYAAA4TQrFc%2BcEoQAAAAaZmNUTAAAABcAAAAQAAAAEAAAAAAAAAAAAB4D6AIBC98ooAAAABZmZEFUAAAAGDiNY2AYBaNgFIwCCAAABBAAASCZDI4AAAAaZmNUTAAAABkAAAAQAAAAEAAAAAAAAAAAAB4D6AIB5qwZ%2FAAAACpmZEFUAAAAGjiNY2AYBVhBc3Pzf2LEcGreqcbwH1kDNjHauWAUjAJyAADymxf9cjJWbAAAABpmY1RMAAAAGwAAABAAAAAQAAAAAAAAAAAAHgPoAgELOsoVAAAAFmZkQVQAAAAcOI1jYBgFo2AUjAIIAAAEEAAByfEBbAAAABpmY1RMAAAAHQAAABAAAAAQAAAAAAAAAAAAHgPoAgHm8LhvAAAAQGZkQVQAAAAeOI1jYBieYKcaw39ixHCC%2F6cwFWMTw2rz%2F1MM%2F6Vu%2Ff%2F%2F%2FxTD%2F51qEIwuRjsXILuEGLFRMApgAADhNCsVlxR3%2FgAAABpmY1RMAAAAHwAAABAAAAAQAAAAAAAAAAAAHgPoAgELZmuGAAAAFmZkQVQAAAAgOI1jYBgFo2AUjAIIAAAEEAABHP5cFQAAABpmY1RMAAAAIQAAABAAAAAQAAAAAAAAAAAAHgPoAgHlgtAOAAAAKmZkQVQAAAAiOI1jYBgFWEFzc%2FN%2FYsRwat6pxvAfWQM2Mdq5YBSMAnIAAPKbF%2F0%2FMvDdAAAAAElFTkSuQmCC"/>
-
-    <script type="application/javascript"><![CDATA[
-      var buttonClicked = false;
-      function robotButton()
-      {
-        var button = document.getElementById('errorTryAgain');
-        if (buttonClicked) {
-          button.style.visibility = "hidden";
-        } else {
-          var newLabel = button.getAttribute("label2");
-          button.textContent = newLabel;
-          buttonClicked = true;
-        }
-      }
-    ]]></script>
-
-    <style type="text/css"><![CDATA[
-      #errorPageContainer {
-        background-image: none;
-      }
-
-      #errorPageContainer:before {
-        content: url('chrome://browser/content/aboutRobots-icon.png');
-        position: absolute;
-      }
-
-      body[dir=rtl] #icon,
-      body[dir=rtl] #errorPageContainer:before {
-        transform: scaleX(-1);
-      }
-    ]]></style>
-  </head>
-
-  <body dir="&locale.dir;">
-
-    <!-- PAGE CONTAINER (for styling purposes only) -->
-    <div id="errorPageContainer">
-
-      <!-- Error Title -->
-      <div id="errorTitle">
-        <h1 id="errorTitleText">&robots.errorTitleText;</h1>
-      </div>
-
-      <!-- LONG CONTENT (the section most likely to require scrolling) -->
-      <div id="errorLongContent">
-
-        <!-- Short Description -->
-        <div id="errorShortDesc">
-          <p id="errorShortDescText">&robots.errorShortDescText;</p>
-        </div>
-
-        <!-- Long Description (Note: See netError.dtd for used XHTML tags) -->
-        <div id="errorLongDesc">
-          <ul>
-            <li>&robots.errorLongDesc1;</li>
-            <li>&robots.errorLongDesc2;</li>
-            <li>&robots.errorLongDesc3;</li>
-            <li>&robots.errorLongDesc4;</li>
-          </ul>
-        </div>
-
-        <!-- Short Description -->
-        <div id="errorTrailerDesc">
-          <p id="errorTrailerDescText">&robots.errorTrailerDescText;</p>
-        </div>
-
-      </div>
-
-      <!-- Button -->
-      <button id="errorTryAgain"
-              label2="&robots.dontpress;"
-              onclick="robotButton();">&retry.label;</button>
-
-      <img src="chrome://browser/content/aboutRobots-widget-left.png"
-           style="position: absolute; bottom: -12px; left: -10px;"/>
-      <img src="chrome://browser/content/aboutRobots-widget-left.png"
-           style="position: absolute; bottom: -12px; right: -10px; transform: scaleX(-1);"/>
-    </div>
-
-  </body>
-</html>
diff --git a/application/basilisk/base/content/browser-context.inc b/application/basilisk/base/content/browser-context.inc
index 36e0478af..2f6b19da0 100644
--- a/application/basilisk/base/content/browser-context.inc
+++ b/application/basilisk/base/content/browser-context.inc
@@ -51,23 +51,11 @@
                 label="&openLinkCmdInCurrent.label;"
                 accesskey="&openLinkCmdInCurrent.accesskey;"
                 oncommand="gContextMenu.openLinkInCurrent();"/>
-# label and data-usercontextid are dynamically set.
-      <menuitem id="context-openlinkincontainertab"
-                accesskey="&openLinkCmdInTab.accesskey;"
-                oncommand="gContextMenu.openLinkInTab(event);"/>
+# label is dynamically set.
       <menuitem id="context-openlinkintab"
                 label="&openLinkCmdInTab.label;"
                 accesskey="&openLinkCmdInTab.accesskey;"
-                data-usercontextid="0"
-                oncommand="gContextMenu.openLinkInTab(event);"/>
-
-      <menu id="context-openlinkinusercontext-menu"
-            label="&openLinkCmdInContainerTab.label;"
-            accesskey="&openLinkCmdInContainerTab.accesskey;"
-            hidden="true">
-        <menupopup oncommand="gContextMenu.openLinkInTab(event);"
-                   onpopupshowing="return gContextMenu.createContainerMenu(event);" />
-      </menu>
+                oncommand="gContextMenu.openLinkInTab();"/>
 
       <menuitem id="context-openlink"
                 label="&openLinkCmd.label;"
diff --git a/application/basilisk/base/content/browser-fullScreenAndPointerLock.js b/application/basilisk/base/content/browser-fullScreenAndPointerLock.js
index ebe55377f..b26a31f78 100644
--- a/application/basilisk/base/content/browser-fullScreenAndPointerLock.js
+++ b/application/basilisk/base/content/browser-fullScreenAndPointerLock.js
@@ -322,15 +322,9 @@ var FullScreen = {
       document.addEventListener("popuphidden", this._setPopupOpen, false);
       // If it is not safe to collapse, add the mouse position tracker or
       // else it won't be possible to hide the navigation toolbox again
-      if (!this._safeToCollapse()) {
-        let rect = gBrowser.mPanelContainer.getBoundingClientRect();
-        this._mouseTargetRect = {
-          top: rect.top + 50,
-          bottom: rect.bottom,
-          left: rect.left,
-          right: rect.right
-        };
-        MousePosTracker.addListener(this);
+      if (gPrefService.getBoolPref("browser.fullscreen.autohide")) {
+        gBrowser.mPanelContainer.addEventListener("mousemove",
+                                                  this._collapseCallback, false);
       }
       // In DOM fullscreen mode, we hide toolbars with CSS
       if (!document.fullscreenElement)
@@ -468,7 +462,8 @@ var FullScreen = {
 
   cleanup: function () {
     if (!window.fullScreen) {
-      MousePosTracker.removeListener(this);
+      gBrowser.mPanelContainer.removeEventListener("mousemove",
+                                                   this._collapseCallback, false);
       document.removeEventListener("keypress", this._keyToggleCallback, false);
       document.removeEventListener("popupshown", this._setPopupOpen, false);
       document.removeEventListener("popuphidden", this._setPopupOpen, false);
@@ -497,17 +492,12 @@ var FullScreen = {
                  .getInterface(Ci.nsIDOMWindowUtils);
   },
 
-  getMouseTargetRect: function()
-  {
-    return this._mouseTargetRect;
-  },
-
   // Event callbacks
   _expandCallback: function()
   {
     FullScreen.showNavToolbox();
   },
-  onMouseEnter: function()
+  _collapseCallback: function()
   {
     FullScreen.hideNavToolbox();
   },
@@ -588,14 +578,8 @@ var FullScreen = {
 
     // Track whether mouse is near the toolbox
     if (trackMouse && !this.useLionFullScreen) {
-      let rect = gBrowser.mPanelContainer.getBoundingClientRect();
-      this._mouseTargetRect = {
-        top: rect.top + 50,
-        bottom: rect.bottom,
-        left: rect.left,
-        right: rect.right
-      };
-      MousePosTracker.addListener(this);
+      gBrowser.mPanelContainer.addEventListener("mousemove",
+                                                this._collapseCallback, false);
     }
 
     this._isChromeCollapsed = false;
@@ -622,7 +606,8 @@ var FullScreen = {
     gNavToolbox.style.marginTop =
       -gNavToolbox.getBoundingClientRect().height + "px";
     this._isChromeCollapsed = true;
-    MousePosTracker.removeListener(this);
+    gBrowser.mPanelContainer.removeEventListener("mousemove",
+                                                 this._collapseCallback, false);
   },
 
   _updateToolbars: function (aEnterFS) {
diff --git a/application/basilisk/base/content/browser-menubar.inc b/application/basilisk/base/content/browser-menubar.inc
index 41734711c..0549ad915 100644
--- a/application/basilisk/base/content/browser-menubar.inc
+++ b/application/basilisk/base/content/browser-menubar.inc
@@ -11,19 +11,12 @@
                 style="border:0px;padding:0px;margin:0px;-moz-appearance:none">
             <menu id="file-menu" label="&fileMenu.label;"
                   accesskey="&fileMenu.accesskey;">
-              <menupopup id="menu_FilePopup"
-                         onpopupshowing="updateUserContextUIVisibility();">
+              <menupopup id="menu_FilePopup">
                 <menuitem id="menu_newNavigatorTab"
                           label="&tabCmd.label;"
                           command="cmd_newNavigatorTab"
                           key="key_newNavigatorTab"
                           accesskey="&tabCmd.accesskey;"/>
-                <menu id="menu_newUserContext"
-                      label="&newUserContext.label;"
-                      accesskey="&newUserContext.accesskey;"
-                      hidden="true">
-                  <menupopup onpopupshowing="return createUserContextMenu(event);" />
-                </menu>
                 <menuitem id="menu_newNavigator"
                           label="&newNavigatorCmd.label;"
                           accesskey="&newNavigatorCmd.accesskey;"
diff --git a/application/basilisk/base/content/browser.js b/application/basilisk/base/content/browser.js
index 9fb997a42..ddbe11a9d 100644
--- a/application/basilisk/base/content/browser.js
+++ b/application/basilisk/base/content/browser.js
@@ -8,7 +8,6 @@ var Cu = Components.utils;
 var Cc = Components.classes;
 
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/ContextualIdentityService.jsm");
 Cu.import("resource://gre/modules/NotificationDB.jsm");
 
 // lazy module getters
@@ -827,10 +826,6 @@ function _loadURIWithFlags(browser, uri, params) {
   }
   try {
     if (!mustChangeProcess) {
-      if (params.userContextId) {
-        browser.webNavigation.setOriginAttributesBeforeLoading({ userContextId: params.userContextId });
-      }
-
       browser.webNavigation.loadURIWithOptions(uri, flags,
                                                referrer, referrerPolicy,
                                                postData, null, null, triggeringPrincipal);
@@ -856,10 +851,6 @@ function _loadURIWithFlags(browser, uri, params) {
         postData: postData
       }
 
-      if (params.userContextId) {
-        loadParams.userContextId = params.userContextId;
-      }
-
       LoadInOtherProcess(browser, loadParams);
     }
   } catch (e) {
@@ -872,10 +863,6 @@ function _loadURIWithFlags(browser, uri, params) {
       Cu.reportError(e);
       gBrowser.updateBrowserRemotenessByURL(browser, uri);
 
-      if (params.userContextId) {
-        browser.webNavigation.setOriginAttributesBeforeLoading({ userContextId: params.userContextId });
-      }
-
       browser.webNavigation.loadURIWithOptions(uri, flags, referrer, referrerPolicy,
                                                postData, null, null, triggeringPrincipal);
     } else {
@@ -939,16 +926,6 @@ addEventListener("DOMContentLoaded", function onDCL() {
   let initBrowser =
     document.getAnonymousElementByAttribute(gBrowser, "anonid", "initialBrowser");
 
-  // The window's first argument is a tab if and only if we are swapping tabs.
-  // We must set the browser's usercontextid before updateBrowserRemoteness(),
-  // so that the newly created remote tab child has the correct usercontextid.
-  if (window.arguments) {
-    let tabToOpen = window.arguments[0];
-    if (tabToOpen instanceof XULElement && tabToOpen.hasAttribute("usercontextid")) {
-      initBrowser.setAttribute("usercontextid", tabToOpen.getAttribute("usercontextid"));
-    }
-  }
-
   gBrowser.updateBrowserRemoteness(initBrowser, gMultiProcessBrowser);
 });
 
@@ -1133,13 +1110,6 @@ var gBrowserInit = {
         // make sure it has a docshell
         gBrowser.docShell;
 
-        // We must set usercontextid before updateBrowserRemoteness()
-        // so that the newly created remote tab child has correct usercontextid
-        if (tabToOpen.hasAttribute("usercontextid")) {
-          let usercontextid = tabToOpen.getAttribute("usercontextid");
-          gBrowser.selectedBrowser.setAttribute("usercontextid", usercontextid);
-        }
-
         // If the browser that we're swapping in was remote, then we'd better
         // be able to support remote browsers, and then make our selectedTab
         // remote.
@@ -1165,9 +1135,8 @@ var gBrowserInit = {
       //                 [3]: postData (nsIInputStream)
       //                 [4]: allowThirdPartyFixup (bool)
       //                 [5]: referrerPolicy (int)
-      //                 [6]: userContextId (int)
-      //                 [7]: originPrincipal (nsIPrincipal)
-      //                 [8]: triggeringPrincipal (nsIPrincipal)
+      //                 [6]: originPrincipal (nsIPrincipal)
+      //                 [7]: triggeringPrincipal (nsIPrincipal)
       else if (window.arguments.length >= 3) {
         let referrerURI = window.arguments[2];
         if (typeof(referrerURI) == "string") {
@@ -1179,13 +1148,11 @@ var gBrowserInit = {
         }
         let referrerPolicy = (window.arguments[5] != undefined ?
             window.arguments[5] : Ci.nsIHttpChannel.REFERRER_POLICY_DEFAULT);
-        let userContextId = (window.arguments[6] != undefined ?
-            window.arguments[6] : Ci.nsIScriptSecurityManager.DEFAULT_USER_CONTEXT_ID);
         loadURI(uriToLoad, referrerURI, window.arguments[3] || null,
-                window.arguments[4] || false, referrerPolicy, userContextId,
+                window.arguments[4] || false, referrerPolicy,
                 // pass the origin principal (if any) and force its use to create
                 // an initial about:blank viewer if present:
-                window.arguments[7], !!window.arguments[7], window.arguments[8]);
+                window.arguments[6], !!window.arguments[6], window.arguments[7]);
         window.focus();
       }
       // Note: loadOneOrMoreURIs *must not* be called if window.arguments.length >= 3.
@@ -1277,7 +1244,7 @@ var gBrowserInit = {
 
     // Setup click-and-hold gestures access to the session history
     // menus if global click-and-hold isn't turned on
-    if (!getBoolPref("ui.click_hold_context_menus", false))
+    if (!Services.prefs.getBoolPref("ui.click_hold_context_menus", false))
       SetClickAndHoldHandlers();
 
     let NP = {};
@@ -1868,7 +1835,7 @@ function BrowserGoHome(aEvent) {
   case "tabshifted":
   case "tab":
     urls = homePage.split("|");
-    var loadInBackground = getBoolPref("browser.tabs.loadBookmarksInBackground", false);
+    var loadInBackground = Services.prefs.getBoolPref("browser.tabs.loadBookmarksInBackground", false);
     gBrowser.loadTabs(urls, loadInBackground);
     break;
   case "window":
@@ -2070,7 +2037,7 @@ function BrowserTryToCloseWindow()
 }
 
 function loadURI(uri, referrer, postData, allowThirdPartyFixup, referrerPolicy,
-                 userContextId, originPrincipal, forceAboutBlankViewerInCurrent,
+                 originPrincipal, forceAboutBlankViewerInCurrent,
                  triggeringPrincipal) {
   try {
     openLinkIn(uri, "current",
@@ -2078,7 +2045,6 @@ function loadURI(uri, referrer, postData, allowThirdPartyFixup, referrerPolicy,
                  referrerPolicy: referrerPolicy,
                  postData: postData,
                  allowThirdPartyFixup: allowThirdPartyFixup,
-                 userContextId: userContextId,
                  originPrincipal,
                  triggeringPrincipal,
                  forceAboutBlankViewerInCurrent,
@@ -3094,6 +3060,11 @@ function getWebNavigation()
 }
 
 function BrowserReloadWithFlags(reloadFlags) {
+
+  // Reset DOS mitigation for auth prompts when user initiates a reload.
+  let browser = gBrowser.selectedBrowser;
+  delete browser.authPromptCounter;
+
   let url = gBrowser.currentURI.spec;
   if (gBrowser.updateBrowserRemotenessByURL(gBrowser.selectedBrowser, url)) {
     // If the remoteness has changed, the new browser doesn't have any
@@ -3946,66 +3917,6 @@ function updateEditUIVisibility()
 }
 
 /**
- * Opens a new tab with the userContextId specified as an attribute of
- * sourceEvent. This attribute is propagated to the top level originAttributes
- * living on the tab's docShell.
- *
- * @param event
- *        A click event on a userContext File Menu option
- */
-function openNewUserContextTab(event)
-{
-  openUILinkIn(BROWSER_NEW_TAB_URL, "tab", {
-    userContextId: parseInt(event.target.getAttribute('data-usercontextid')),
-  });
-}
-
-/**
- * Updates File Menu User Context UI visibility depending on
- * privacy.userContext.enabled pref state.
- */
-function updateUserContextUIVisibility()
-{
-  let menu = document.getElementById("menu_newUserContext");
-  menu.hidden = !Services.prefs.getBoolPref("privacy.userContext.enabled");
-  if (PrivateBrowsingUtils.isWindowPrivate(window)) {
-    menu.setAttribute("disabled", "true");
-  }
-}
-
-/**
- * Updates the User Context UI indicators if the browser is in a non-default context
- */
-function updateUserContextUIIndicator()
-{
-  let hbox = document.getElementById("userContext-icons");
-
-  let userContextId = gBrowser.selectedBrowser.getAttribute("usercontextid");
-  if (!userContextId) {
-    hbox.setAttribute("data-identity-color", "");
-    hbox.hidden = true;
-    return;
-  }
-
-  let identity = ContextualIdentityService.getIdentityFromId(userContextId);
-  if (!identity) {
-    hbox.setAttribute("data-identity-color", "");
-    hbox.hidden = true;
-    return;
-  }
-
-  hbox.setAttribute("data-identity-color", identity.color);
-
-  let label = document.getElementById("userContext-label");
-  label.setAttribute("value", ContextualIdentityService.getUserContextLabel(userContextId));
-
-  let indicator = document.getElementById("userContext-indicator");
-  indicator.setAttribute("data-identity-icon", identity.icon);
-
-  hbox.hidden = false;
-}
-
-/**
  * Makes the Character Encoding menu enabled or disabled as appropriate.
  * To be called when the View menu or the app menu is opened.
  */
@@ -4685,7 +4596,6 @@ nsBrowserAccess.prototype = {
 
   _openURIInNewTab: function(aURI, aReferrer, aReferrerPolicy, aIsPrivate,
                              aIsExternal, aForceNotRemote=false,
-                             aUserContextId=Ci.nsIScriptSecurityManager.DEFAULT_USER_CONTEXT_ID,
                              aOpener = null, aTriggeringPrincipal = null) {
     let win, needToFocusWin;
 
@@ -4714,7 +4624,6 @@ nsBrowserAccess.prototype = {
                                       triggeringPrincipal: aTriggeringPrincipal,
                                       referrerURI: aReferrer,
                                       referrerPolicy: aReferrerPolicy,
-                                      userContextId: aUserContextId,
                                       fromExternal: aIsExternal,
                                       inBackground: loadInBackground,
                                       forceNotRemote: aForceNotRemote,
@@ -4791,13 +4700,10 @@ nsBrowserAccess.prototype = {
         // will do the job of shuttling off the newly opened browser to run in
         // the right process once it starts loading a URI.
         let forceNotRemote = !!aOpener;
-        let userContextId = aOpener && aOpener.document
-                              ? aOpener.document.nodePrincipal.originAttributes.userContextId
-                              : Ci.nsIScriptSecurityManager.DEFAULT_USER_CONTEXT_ID;
         let openerWindow = (aFlags & Ci.nsIBrowserDOMWindow.OPEN_NO_OPENER) ? null : aOpener;
         let browser = this._openURIInNewTab(aURI, referrer, referrerPolicy,
                                             isPrivate, isExternal,
-                                            forceNotRemote, userContextId,
+                                            forceNotRemote,
                                             openerWindow, triggeringPrincipal);
         if (browser)
           newWindow = browser.contentWindow;
@@ -4829,16 +4735,10 @@ nsBrowserAccess.prototype = {
 
     var isExternal = !!(aFlags & Ci.nsIBrowserDOMWindow.OPEN_EXTERNAL);
 
-    var userContextId = aParams.openerOriginAttributes &&
-                        ("userContextId" in aParams.openerOriginAttributes)
-                          ? aParams.openerOriginAttributes.userContextId
-                          : Ci.nsIScriptSecurityManager.DEFAULT_USER_CONTEXT_ID
-
     let browser = this._openURIInNewTab(aURI, aParams.referrer,
                                         aParams.referrerPolicy,
                                         aParams.isPrivate,
                                         isExternal, false,
-                                        userContextId, null,
                                         aParams.triggeringPrincipal);
     if (browser)
       return browser.QueryInterface(Ci.nsIFrameLoaderOwner);
@@ -5395,11 +5295,6 @@ function handleLinkClick(event, href, linkNode) {
     triggeringPrincipal: doc.nodePrincipal,
   };
 
-  // The new tab/window must use the same userContextId
-  if (doc.nodePrincipal.originAttributes.userContextId) {
-    params.userContextId = doc.nodePrincipal.originAttributes.userContextId;
-  }
-
   openLinkIn(href, where, params);
   event.preventDefault();
   return true;
@@ -5471,8 +5366,6 @@ function handleDroppedLink(event, urlOrLinks, name)
 
   let lastLocationChange = gBrowser.selectedBrowser.lastLocationChange;
 
-  let userContextId = gBrowser.selectedBrowser.getAttribute("usercontextid");
-
   // event is null if links are dropped in content process.
   // inBackground should be false, as it's loading into current browser.
   let inBackground = false;
@@ -5496,7 +5389,6 @@ function handleDroppedLink(event, urlOrLinks, name)
         replace: true,
         allowThirdPartyFixup: false,
         postDatas,
-        userContextId,
       });
     }
   });
diff --git a/application/basilisk/base/content/browser.xul b/application/basilisk/base/content/browser.xul
index 3208538c1..0cc4c982a 100644
--- a/application/basilisk/base/content/browser.xul
+++ b/application/basilisk/base/content/browser.xul
@@ -8,7 +8,6 @@
 
 <?xml-stylesheet href="chrome://browser/content/browser.css" type="text/css"?>
 <?xml-stylesheet href="chrome://browser/content/places/places.css" type="text/css"?>
-<?xml-stylesheet href="chrome://browser/content/usercontext/usercontext.css" type="text/css"?>
 #ifdef MOZ_DEVTOOLS
 <?xml-stylesheet href="chrome://devtools/skin/devtools-browser.css" type="text/css"?>
 #endif
@@ -551,12 +550,7 @@
                     key="key_undoCloseTab"
                     label="&undoCloseTab.label;"
                     observes="History:UndoCloseTab"/>
-          <menuseparator id="alltabs-popup-separator-1"/>
-          <menu id="alltabs_containersTab"
-                label="&newUserContext.label;">
-            <menupopup id="alltabs_containersMenuTab" />
-          </menu>
-          <menuseparator id="alltabs-popup-separator-2"/>
+          <menuseparator id="alltabs-popup-separator"/>
         </menupopup>
       </toolbarbutton>
 
@@ -997,7 +991,8 @@
                     contentcontextmenu="contentAreaContextMenu"
                     autocompletepopup="PopupAutoComplete"
                     selectmenulist="ContentSelectDropdown"
-                    datetimepicker="DateTimePickerPanel"/>
+                    datetimepicker="DateTimePickerPanel"
+                    authdosprotected="true" />
       </vbox>
       <vbox id="browser-border-end" hidden="true" layer="true"/>
     </hbox>
diff --git a/application/basilisk/base/content/content.js b/application/basilisk/base/content/content.js
index 5accbdf7b..d2a70ba11 100644
--- a/application/basilisk/base/content/content.js
+++ b/application/basilisk/base/content/content.js
@@ -162,9 +162,6 @@ var handleContentContextMenu = function (event) {
 
   let selectionInfo = BrowserUtils.getSelectionDetails(content);
 
-  let loadContext = docShell.QueryInterface(Ci.nsILoadContext);
-  let userContextId = loadContext.originAttributes.userContextId;
-
   if (Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT) {
     let editFlags = SpellCheckHelper.isEditable(event.target, content);
     let spellInfo;
@@ -188,7 +185,7 @@ var handleContentContextMenu = function (event) {
                      principal, docLocation, charSet, baseURI, referrer,
                      referrerPolicy, contentType, contentDisposition,
                      frameOuterWindowID, selectionInfo, disableSetDesktopBg,
-                     loginFillInfo, parentAllowsMixedContent, userContextId },
+                     loginFillInfo, parentAllowsMixedContent },
                    { event, popupNode: event.target });
   }
   else {
@@ -212,7 +209,6 @@ var handleContentContextMenu = function (event) {
       disableSetDesktopBackground: disableSetDesktopBg,
       loginFillInfo,
       parentAllowsMixedContent,
-      userContextId,
     };
   }
 }
diff --git a/application/basilisk/base/content/nsContextMenu.js b/application/basilisk/base/content/nsContextMenu.js
index 3f77dcb90..74a2e7a8e 100644
--- a/application/basilisk/base/content/nsContextMenu.js
+++ b/application/basilisk/base/content/nsContextMenu.js
@@ -4,7 +4,6 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-Components.utils.import("resource://gre/modules/ContextualIdentityService.jsm");
 Components.utils.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
 Components.utils.import("resource://gre/modules/InlineSpellChecker.jsm");
 Components.utils.import("resource://gre/modules/LoginManagerContextMenu.jsm");
@@ -142,28 +141,11 @@ nsContextMenu.prototype = {
       this.onPlainTextLink = true;
     }
 
-    var inContainer = false;
-    if (gContextMenuContentData.userContextId) {
-      inContainer = true;
-      var item = document.getElementById("context-openlinkincontainertab");
-
-      item.setAttribute("data-usercontextid", gContextMenuContentData.userContextId);
-
-      var label =
-        ContextualIdentityService.getUserContextLabel(gContextMenuContentData.userContextId);
-      item.setAttribute("label",
-         gBrowserBundle.formatStringFromName("userContextOpenLink.label",
-                                             [label], 1));
-    }
-
     var shouldShow = this.onSaveableLink || isMailtoInternal || this.onPlainTextLink;
     var isWindowPrivate = PrivateBrowsingUtils.isWindowPrivate(window);
-    var showContainers = Services.prefs.getBoolPref("privacy.userContext.enabled");
     this.showItem("context-openlink", shouldShow && !isWindowPrivate);
     this.showItem("context-openlinkprivate", shouldShow);
-    this.showItem("context-openlinkintab", shouldShow && !inContainer);
-    this.showItem("context-openlinkincontainertab", shouldShow && inContainer);
-    this.showItem("context-openlinkinusercontext-menu", shouldShow && !isWindowPrivate && showContainers);
+    this.showItem("context-openlinkintab", shouldShow);
     this.showItem("context-openlinkincurrent", this.onPlainTextLink);
     this.showItem("context-sep-open", shouldShow);
   },
@@ -958,13 +940,6 @@ nsContextMenu.prototype = {
       params[p] = extra[p];
     }
 
-    // If we want to change userContextId, we must be sure that we don't
-    // propagate the referrer.
-    if ("userContextId" in params &&
-        params.userContextId != gContextMenuContentData.userContextId) {
-      params.noReferrer = true;
-    }
-
     return params;
   },
 
@@ -982,7 +957,7 @@ nsContextMenu.prototype = {
   },
 
   // Open linked-to URL in a new tab.
-  openLinkInTab: function(event) {
+  openLinkInTab: function() {
     urlSecurityCheck(this.linkURL, this.principal);
     let referrerURI = gContextMenuContentData.documentURIObject;
 
@@ -1003,7 +978,6 @@ nsContextMenu.prototype = {
 
     let params = {
       allowMixedContent: persistAllowMixedContentInChildTab,
-      userContextId: parseInt(event.target.getAttribute('data-usercontextid')),
     };
 
     openLinkIn(this.linkURL, "tab", this._openLinkInParameters(params));
@@ -1779,8 +1753,4 @@ nsContextMenu.prototype = {
     menuItem.label = menuLabel;
     menuItem.accessKey = gNavigatorBundle.getString("contextMenuSearch.accesskey");
   },
-  createContainerMenu: function(aEvent) {
-    return createUserContextMenu(aEvent, true,
-                                 gContextMenuContentData.userContextId);
-  },
 };
diff --git a/application/basilisk/base/content/tab-content.js b/application/basilisk/base/content/tab-content.js
index 6d053dd2b..35ef8ceb2 100644
--- a/application/basilisk/base/content/tab-content.js
+++ b/application/basilisk/base/content/tab-content.js
@@ -9,9 +9,6 @@ var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
 
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
-#ifdef MOZ_WEBEXTENSIONS
-Cu.import("resource://gre/modules/ExtensionContent.jsm");
-#endif
 
 XPCOMUtils.defineLazyModuleGetter(this, "E10SUtils",
   "resource:///modules/E10SUtils.jsm");
@@ -889,41 +886,6 @@ var RefreshBlocker = {
 
 RefreshBlocker.init();
 
-var UserContextIdNotifier = {
-  init() {
-    addEventListener("DOMWindowCreated", this);
-  },
-
-  uninit() {
-    removeEventListener("DOMWindowCreated", this);
-  },
-
-  handleEvent(aEvent) {
-    // When the window is created, we want to inform the tabbrowser about
-    // the userContextId in use in order to update the UI correctly.
-    // Just because we cannot change the userContextId from an active docShell,
-    // we don't need to check DOMContentLoaded again.
-    this.uninit();
-
-    // We use the docShell because content.document can have been loaded before
-    // setting the originAttributes.
-    let loadContext = docShell.QueryInterface(Ci.nsILoadContext);
-    let userContextId = loadContext.originAttributes.userContextId;
-
-    sendAsyncMessage("Browser:WindowCreated", { userContextId });
-  }
-};
-
-UserContextIdNotifier.init();
-
-#ifdef MOZ_WEBEXTENSIONS
-ExtensionContent.init(this);
-addEventListener("unload", () => {
-  ExtensionContent.uninit(this);
-  RefreshBlocker.uninit();
-});
-#endif
-
 addMessageListener("AllowScriptsToClose", () => {
   content.QueryInterface(Ci.nsIInterfaceRequestor)
          .getInterface(Ci.nsIDOMWindowUtils)
diff --git a/application/basilisk/base/content/tabbrowser.xml b/application/basilisk/base/content/tabbrowser.xml
index 043838020..c2f02512d 100644
--- a/application/basilisk/base/content/tabbrowser.xml
+++ b/application/basilisk/base/content/tabbrowser.xml
@@ -25,7 +25,7 @@
               <xul:vbox flex="1" class="browserContainer">
                 <xul:stack flex="1" class="browserStack" anonid="browserStack">
                   <xul:browser anonid="initialBrowser" type="content-primary" message="true" messagemanagergroup="browsers"
-                               xbl:inherits="tooltip=contenttooltip,contextmenu=contentcontextmenu,autocompletepopup,selectmenulist,datetimepicker"/>
+                               xbl:inherits="tooltip=contenttooltip,contextmenu=contentcontextmenu,autocompletepopup,selectmenulist,datetimepicker,authdosprotected"/>
                 </xul:stack>
               </xul:vbox>
             </xul:hbox>
@@ -814,10 +814,8 @@
                 }
 
                 let unifiedComplete = this.mTabBrowser._unifiedComplete;
-                let userContextId = this.mBrowser.getAttribute("usercontextid") || 0;
                 if (this.mBrowser.registeredOpenURI) {
-                  unifiedComplete.unregisterOpenPage(this.mBrowser.registeredOpenURI,
-                                                     userContextId);
+                  unifiedComplete.unregisterOpenPage(this.mBrowser.registeredOpenURI);
                   delete this.mBrowser.registeredOpenURI;
                 }
                 // Tabs in private windows aren't registered as "Open" so
@@ -825,7 +823,7 @@
                 if (!isBlankPageURL(aLocation.spec) &&
                     (!PrivateBrowsingUtils.isWindowPrivate(window) ||
                     PrivateBrowsingUtils.permanentPrivateBrowsing)) {
-                  unifiedComplete.registerOpenPage(aLocation, userContextId);
+                  unifiedComplete.registerOpenPage(aLocation);
                   this.mBrowser.registeredOpenURI = aLocation;
                 }
               }
@@ -1230,7 +1228,6 @@
                 this._adjustFocusAfterTabSwitch(this.mCurrentTab);
             }
 
-            updateUserContextUIIndicator();
             gIdentityHandler.updateSharingIndicator();
 
             this.tabContainer._setPositionalAttributes();
@@ -1486,7 +1483,6 @@
             var aSkipAnimation;
             var aForceNotRemote;
             var aNoReferrer;
-            var aUserContextId;
             var aRelatedBrowser;
             var aOriginPrincipal;
             var aOpener;
@@ -1507,7 +1503,6 @@
               aSkipAnimation        = params.skipAnimation;
               aForceNotRemote       = params.forceNotRemote;
               aNoReferrer           = params.noReferrer;
-              aUserContextId        = params.userContextId;
               aRelatedBrowser       = params.relatedBrowser;
               aOriginPrincipal      = params.originPrincipal;
               aOpener               = params.opener;
@@ -1530,7 +1525,6 @@
                                   allowMixedContent: aAllowMixedContent,
                                   forceNotRemote: aForceNotRemote,
                                   noReferrer: aNoReferrer,
-                                  userContextId: aUserContextId,
                                   originPrincipal: aOriginPrincipal,
                                   relatedBrowser: aRelatedBrowser,
                                   opener: aOpener });
@@ -1551,7 +1545,6 @@
           let aTargetTab;
           let aNewIndex = -1;
           let aPostDatas = [];
-          let aUserContextId;
           if (arguments.length == 2 &&
               typeof arguments[1] == "object") {
             let params = arguments[1];
@@ -1562,7 +1555,6 @@
             aNewIndex             = typeof params.newIndex === "number" ?
                                     params.newIndex : aNewIndex;
             aPostDatas            = params.postDatas || aPostDatas;
-            aUserContextId        = params.userContextId;
           }
 
           if (!aURIs.length)
@@ -1611,8 +1603,7 @@
               ownerTab: owner,
               skipAnimation: multiple,
               allowThirdPartyFixup: aAllowThirdPartyFixup,
-              postData: aPostDatas[0],
-              userContextId: aUserContextId
+              postData: aPostDatas[0]
             });
             if (aNewIndex !== -1) {
               this.moveTabTo(firstTabAdded, aNewIndex);
@@ -1625,8 +1616,7 @@
             let tab = this.addTab(aURIs[i], {
               skipAnimation: true,
               allowThirdPartyFixup: aAllowThirdPartyFixup,
-              postData: aPostDatas[i],
-              userContextId: aUserContextId
+              postData: aPostDatas[i]
             });
             if (targetTabIndex !== -1)
               this.moveTabTo(tab, ++tabNum);
@@ -1899,7 +1889,7 @@
         <body>
           <![CDATA[
             // Supported parameters:
-            // userContextId, remote, isPreloadBrowser, uriIsAboutBlank, permanentKey
+            // remote, isPreloadBrowser, uriIsAboutBlank, permanentKey
 
             const NS_XUL = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
 
@@ -1911,10 +1901,6 @@
             b.setAttribute("contextmenu", this.getAttribute("contentcontextmenu"));
             b.setAttribute("tooltip", this.getAttribute("contenttooltip"));
 
-            if (aParams.userContextId) {
-              b.setAttribute("usercontextid", aParams.userContextId);
-            }
-
             if (aParams.remote) {
               b.setAttribute("remote", "true");
             }
@@ -1936,6 +1922,10 @@
             if (this.hasAttribute("datetimepicker")) {
               b.setAttribute("datetimepicker", this.getAttribute("datetimepicker"));
             }
+            
+            if (this.hasAttribute("authdosprotected")) {
+              b.setAttribute("authdosprotected", this.getAttribute("authdosprotected"));
+            }
 
             b.setAttribute("autoscrollpopup", this._autoScrollPopup.id);
 
@@ -1989,7 +1979,7 @@
             "use strict";
 
             // Supported parameters:
-            // forceNotRemote, userContextId
+            // forceNotRemote
 
             let uriIsAboutBlank = !aURI || aURI == "about:blank";
 
@@ -2007,7 +1997,6 @@
             // Private windows are not included because both the label and the
             // icon for the tab would be set incorrectly (see bug 1195981).
             if (aURI == BROWSER_NEW_TAB_URL &&
-                !aParams.userContextId &&
                 !PrivateBrowsingUtils.isWindowPrivate(window)) {
               browser = this._getPreloadedBrowser();
               if (browser) {
@@ -2021,7 +2010,6 @@
               browser = this._createBrowser({permanentKey: aTab.permanentKey,
                                              remote: remote,
                                              uriIsAboutBlank: uriIsAboutBlank,
-                                             userContextId: aParams.userContextId,
                                              relatedBrowser: aParams.relatedBrowser,
                                              opener: aParams.opener});
             }
@@ -2096,7 +2084,6 @@
             var aAllowMixedContent;
             var aForceNotRemote;
             var aNoReferrer;
-            var aUserContextId;
             var aEventDetail;
             var aRelatedBrowser;
             var aOriginPrincipal;
@@ -2119,7 +2106,6 @@
               aAllowMixedContent    = params.allowMixedContent;
               aForceNotRemote       = params.forceNotRemote;
               aNoReferrer           = params.noReferrer;
-              aUserContextId        = params.userContextId;
               aEventDetail          = params.eventDetail;
               aRelatedBrowser       = params.relatedBrowser;
               aOriginPrincipal      = params.originPrincipal;
@@ -2146,11 +2132,6 @@
               t.setAttribute("label", aURI);
             }
 
-            if (aUserContextId) {
-              t.setAttribute("usercontextid", aUserContextId);
-              ContextualIdentityService.setTabStyle(t);
-            }
-
             t.setAttribute("crop", "end");
             t.setAttribute("onerror", "this.removeAttribute('image');");
 
@@ -2200,7 +2181,6 @@
             // of tab.linkedBrowser.
             let browserParams = {
               forceNotRemote: aForceNotRemote,
-              userContextId:  aUserContextId,
               relatedBrowser: aRelatedBrowser,
               opener: aOpener,
             };
@@ -2579,8 +2559,7 @@
             listener.destroy();
 
             if (browser.registeredOpenURI && !aAdoptedByTab) {
-              this._unifiedComplete.unregisterOpenPage(browser.registeredOpenURI,
-                                                       browser.getAttribute("usercontextid") || 0);
+              this._unifiedComplete.unregisterOpenPage(browser.registeredOpenURI);
               delete browser.registeredOpenURI;
             }
 
@@ -2779,11 +2758,6 @@
             if (ourBrowser.isRemoteBrowser != otherBrowser.isRemoteBrowser)
               return;
 
-            // Keep the userContextId if set on other browser
-            if (otherBrowser.hasAttribute("usercontextid")) {
-              ourBrowser.setAttribute("usercontextid", otherBrowser.getAttribute("usercontextid"));
-            }
-
             // That's gBrowser for the other window, not the tab's browser!
             var remoteBrowser = aOtherTab.ownerDocument.defaultView.gBrowser;
             var isPending = aOtherTab.hasAttribute("pending");
@@ -2816,10 +2790,6 @@
               aOurTab.setAttribute("soundplaying", "true");
               modifiedAttrs.push("soundplaying");
             }
-            if (aOtherTab.hasAttribute("usercontextid")) {
-              aOurTab.setUserContextId(aOtherTab.getAttribute("usercontextid"));
-              modifiedAttrs.push("usercontextid");
-            }
             if (aOtherTab.hasAttribute("sharing")) {
               aOurTab.setAttribute("sharing", aOtherTab.getAttribute("sharing"));
               modifiedAttrs.push("sharing");
@@ -2957,8 +2927,7 @@
           <![CDATA[
             // If the current URI is registered as open remove it from the list.
             if (aOurBrowser.registeredOpenURI) {
-              this._unifiedComplete.unregisterOpenPage(aOurBrowser.registeredOpenURI,
-                                                       aOurBrowser.getAttribute("usercontextid") || 0);
+              this._unifiedComplete.unregisterOpenPage(aOurBrowser.registeredOpenURI);
               delete aOurBrowser.registeredOpenURI;
             }
 
@@ -2991,7 +2960,10 @@
         <parameter name="aTab"/>
         <body>
           <![CDATA[
-            this.getBrowserForTab(aTab).reload();
+            let browser = this.getBrowserForTab(aTab);
+            // Reset DOS mitigation for basic auth prompt
+            delete browser.authPromptCounter;
+            browser.reload();
           ]]>
         </body>
       </method>
@@ -3295,10 +3267,6 @@
           // it in the other window (making it seem to have moved between
           // windows).
           let params = { eventDetail: { adoptedTab: aTab } };
-          if (aTab.hasAttribute("usercontextid")) {
-            // new tab must have the same usercontextid as the old one
-            params.userContextId = aTab.getAttribute("usercontextid");
-          }
           let newTab = this.addTab("about:blank", params);
           let newBrowser = this.getBrowserForTab(newTab);
           let newURL = aTab.linkedBrowser.currentURI.spec;
@@ -4618,7 +4586,6 @@
                                           disableSetDesktopBackground: data.disableSetDesktopBg,
                                           loginFillInfo: data.loginFillInfo,
                                           parentAllowsMixedContent: data.parentAllowsMixedContent,
-                                          userContextId: data.userContextId,
                                         };
               let popup = browser.ownerDocument.getElementById("contentAreaContextMenu");
               let event = gContextMenuContentData.event;
@@ -4645,17 +4612,6 @@
             }
             case "Browser:WindowCreated": {
               let tab = this.getTabForBrowser(browser);
-              if (tab && data.userContextId) {
-                ContextualIdentityService.telemetry(data.userContextId);
-                tab.setUserContextId(data.userContextId);
-              }
-
-	      // We don't want to update the container icon and identifier if
-	      // this is not the selected browser.
-              if (browser == gBrowser.selectedBrowser) {
-                updateUserContextUIIndicator();
-              }
-
               break;
             }
             case "Findbar:Keypress": {
@@ -4838,8 +4794,7 @@
           for (let tab of this.tabs) {
             let browser = tab.linkedBrowser;
             if (browser.registeredOpenURI) {
-              this._unifiedComplete.unregisterOpenPage(browser.registeredOpenURI,
-                                                       browser.getAttribute("usercontextid") || 0);
+              this._unifiedComplete.unregisterOpenPage(browser.registeredOpenURI);
               delete browser.registeredOpenURI;
             }
             let filter = this._tabFilters.get(tab);
@@ -5240,7 +5195,7 @@
       </xul:arrowscrollbox>
     </content>
 
-    <implementation implements="nsIDOMEventListener, nsIObserver">
+    <implementation implements="nsIDOMEventListener">
       <constructor>
         <![CDATA[
           this.mTabClipWidth = Services.prefs.getIntPref("browser.tabs.tabClipWidth");
@@ -5259,17 +5214,9 @@
             this._tabAnimationLoggingEnabled = false;
           }
           this._browserNewtabpageEnabled = Services.prefs.getBoolPref("browser.newtabpage.enabled");
-          this.observe(null, "nsPref:changed", "privacy.userContext.enabled");
-          Services.prefs.addObserver("privacy.userContext.enabled", this, false);
         ]]>
       </constructor>
 
-      <destructor>
-        <![CDATA[
-          Services.prefs.removeObserver("privacy.userContext.enabled", this);
-        ]]>
-      </destructor>
-
       <field name="tabbrowser" readonly="true">
         document.getElementById(this.getAttribute("tabbrowser"));
       </field>
@@ -5295,55 +5242,6 @@
       <field name="_afterHoveredTab">null</field>
       <field name="_hoveredTab">null</field>
 
-      <method name="observe">
-        <parameter name="aSubject"/>
-        <parameter name="aTopic"/>
-        <parameter name="aData"/>
-        <body><![CDATA[
-          switch (aTopic) {
-            case "nsPref:changed":
-              // This is the only pref observed.
-              let containersEnabled = Services.prefs.getBoolPref("privacy.userContext.enabled");
-
-              const newTab = document.getElementById("new-tab-button");
-              const newTab2 = document.getAnonymousElementByAttribute(this, "anonid", "tabs-newtab-button")
-
-              if (containersEnabled) {
-                for (let parent of [newTab, newTab2]) {
-                  if (!parent)
-                    continue;
-                  let popup = document.createElementNS(
-                                "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul",
-                                "menupopup");
-                  if (parent.id) {
-                    popup.id = "newtab-popup";
-                  } else {
-                    popup.setAttribute("anonid", "newtab-popup");
-                  }
-                  popup.className = "new-tab-popup";
-                  popup.setAttribute("position", "after_end");
-                  parent.appendChild(popup);
-
-                  gClickAndHoldListenersOnElement.add(parent);
-                  parent.setAttribute("type", "menu");
-                }
-              } else {
-                for (let parent of [newTab, newTab2]) {
-                  if (!parent)
-                    continue;
-                  gClickAndHoldListenersOnElement.remove(parent);
-                  parent.removeAttribute("type");
-                  if (!parent.firstChild)
-                    continue;
-                  parent.firstChild.remove();
-                }
-              }
-
-              break;
-          }
-        ]]></body>
-      </method>
-
       <property name="_isCustomizing" readonly="true">
         <getter>
           let root = document.documentElement;
@@ -6444,7 +6342,6 @@
             inBackground = !inBackground;
 
           let targetTab = this._getDragTargetTab(event, true);
-          let userContextId = this.selectedItem.getAttribute("usercontextid");
           let replace = !!targetTab;
           let newIndex = this._getDropIndex(event, true);
           let urls = links.map(link => link.url);
@@ -6454,7 +6351,6 @@
             allowThirdPartyFixup: true,
             targetTab,
             newIndex,
-            userContextId,
           });
         }
 
@@ -6715,14 +6611,6 @@
       -->
       <field name="muteReason">undefined</field>
 
-      <property name="userContextId" readonly="true">
-        <getter>
-          return this.hasAttribute("usercontextid")
-                   ? parseInt(this.getAttribute("usercontextid"))
-                   : 0;
-        </getter>
-      </property>
-
       <property name="soundPlaying" readonly="true">
         <getter>
           return this.getAttribute("soundplaying") == "true";
@@ -6850,27 +6738,6 @@
         ]]>
         </body>
       </method>
-
-      <method name="setUserContextId">
-        <parameter name="aUserContextId"/>
-        <body>
-        <![CDATA[
-          if (aUserContextId) {
-            if (this.linkedBrowser) {
-              this.linkedBrowser.setAttribute("usercontextid", aUserContextId);
-            }
-            this.setAttribute("usercontextid", aUserContextId);
-          } else {
-            if (this.linkedBrowser) {
-              this.linkedBrowser.removeAttribute("usercontextid");
-            }
-            this.removeAttribute("usercontextid");
-          }
-
-          ContextualIdentityService.setTabStyle(this);
-        ]]>
-        </body>
-      </method>
     </implementation>
 
     <handlers>
@@ -7047,30 +6914,9 @@
     <handlers>
       <handler event="popupshowing">
       <![CDATA[
-        if (event.target.getAttribute("id") == "alltabs_containersMenuTab") {
-          createUserContextMenu(event);
-          return;
-        }
-
-        let containersEnabled = Services.prefs.getBoolPref("privacy.userContext.enabled");
-
-        if (event.target.getAttribute("anonid") == "newtab-popup" ||
-            event.target.id == "newtab-popup") {
-          createUserContextMenu(event);
-        } else {
-          document.getElementById("alltabs-popup-separator-1").hidden = !containersEnabled;
-          let containersTab = document.getElementById("alltabs_containersTab");
-
-          containersTab.hidden = !containersEnabled;
-          if (PrivateBrowsingUtils.isWindowPrivate(window)) {
-            containersTab.setAttribute("disabled", "true");
-          }
-
           document.getElementById("alltabs_undoCloseTab").disabled =
             SessionStore.getClosedTabCount(window) == 0;
 
-          var tabcontainer = gBrowser.tabContainer;
-
           // Listen for changes in the tab bar.
           tabcontainer.addEventListener("TabAttrModified", this, false);
           tabcontainer.addEventListener("TabClose", this, false);
@@ -7087,9 +6933,6 @@
 
       <handler event="popuphidden">
       <![CDATA[
-        if (event.target.getAttribute("id") == "alltabs_containersMenuTab") {
-          return;
-        }
 
         // clear out the menu popup and remove the listeners
         for (let i = this.childNodes.length - 1; i > 0; i--) {
@@ -7098,9 +6941,6 @@
             menuItem.tab.mCorrespondingMenuitem = null;
             this.removeChild(menuItem);
           }
-          if (menuItem.hasAttribute("usercontextid")) {
-            this.removeChild(menuItem);
-          }
         }
         var tabcontainer = gBrowser.tabContainer;
         tabcontainer.mTabstrip.removeEventListener("scroll", this, false);
diff --git a/application/basilisk/base/content/urlbarBindings.xml b/application/basilisk/base/content/urlbarBindings.xml
index eb3150581..b9c17818a 100644
--- a/application/basilisk/base/content/urlbarBindings.xml
+++ b/application/basilisk/base/content/urlbarBindings.xml
@@ -56,11 +56,6 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
       <field name="AppConstants" readonly="true">
         (Components.utils.import("resource://gre/modules/AppConstants.jsm", {})).AppConstants;
       </field>
-#ifdef MOZ_WEBEXTENSIONS
-      <field name="ExtensionSearchHandler" readonly="true">
-        (Components.utils.import("resource://gre/modules/ExtensionSearchHandler.jsm", {})).ExtensionSearchHandler;
-      </field>
-#endif
 
       <constructor><![CDATA[
         this._prefs = Components.classes["@mozilla.org/preferences-service;1"]
@@ -488,15 +483,6 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
                   actionDetails
                 );
                 break;
-#ifdef MOZ_WEBEXTENSIONS
-              case "extension":
-                this.handleRevert();
-                // Give the extension control of handling the command.
-                let searchString = action.params.content;
-                let keyword = action.params.keyword;
-                this.ExtensionSearchHandler.handleInputEntered(keyword, searchString, where);
-                return;
-#endif
             }
           } else {
             // This is a fallback for add-ons and old testing code that directly
@@ -554,6 +540,9 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
             Cu.reportError(ex);
           }
 
+          // Reset DOS mitigations for the basic auth prompt.
+          delete browser.authPromptCounter;
+
           let params = {
             postData,
             allowThirdPartyFixup: true,
@@ -1214,11 +1203,6 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
           this._clearNoActions();
           this.formatValue();
         }
-#ifdef MOZ_WEBEXTENSIONS
-        if (ExtensionSearchHandler.hasActiveInputSession()) {
-          ExtensionSearchHandler.handleInputCancelled();
-        }
-#endif
       ]]></handler>
 
       <handler event="dragstart" phase="capturing"><![CDATA[
diff --git a/application/basilisk/base/content/utilityOverlay.js b/application/basilisk/base/content/utilityOverlay.js
index 38ca82f55..f3ebf3b7e 100644
--- a/application/basilisk/base/content/utilityOverlay.js
+++ b/application/basilisk/base/content/utilityOverlay.js
@@ -5,7 +5,6 @@
 
 // Services = object with smart getters for common XPCOM services
 Components.utils.import("resource://gre/modules/AppConstants.jsm");
-Components.utils.import("resource://gre/modules/ContextualIdentityService.jsm");
 Components.utils.import("resource://gre/modules/Services.jsm");
 Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
 Components.utils.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
@@ -61,16 +60,6 @@ function openTopWin(url) {
   openUILinkIn(url, "current");
 }
 
-function getBoolPref(prefname, def)
-{
-  try {
-    return Services.prefs.getBoolPref(prefname);
-  }
-  catch (er) {
-    return def;
-  }
-}
-
 /* openUILink handles clicks on UI elements that cause URLs to load.
  *
  * As the third argument, you may pass an object with the same properties as
@@ -137,7 +126,7 @@ function whereToOpenLink( e, ignoreButton, ignoreAlt )
 
   // ignoreButton allows "middle-click paste" to use function without always opening in a new window.
   var middle = !ignoreButton && e.button == 1;
-  var middleUsesTabs = getBoolPref("browser.tabs.opentabfor.middleclick", true);
+  var middleUsesTabs = Services.prefs.getBoolPref("browser.tabs.opentabfor.middleclick", true);
 
   // Don't do anything special with right-mouse clicks.  They're probably clicks on context menu items.
 
@@ -145,7 +134,7 @@ function whereToOpenLink( e, ignoreButton, ignoreAlt )
   if (metaKey || (middle && middleUsesTabs))
     return shift ? "tabshifted" : "tab";
 
-  if (alt && getBoolPref("browser.altClickSave", false))
+  if (alt && Services.prefs.getBoolPref("browser.altClickSave", false))
     return "save";
 
   if (shift || (middle && !middleUsesTabs))
@@ -176,7 +165,6 @@ function whereToOpenLink( e, ignoreButton, ignoreAlt )
  *   skipTabAnimation     (boolean)
  *   allowPinnedTabHostChange (boolean)
  *   allowPopups          (boolean)
- *   userContextId        (unsigned int)
  */
 function openUILinkIn(url, where, aAllowThirdPartyFixup, aPostData, aReferrerURI) {
   var params;
@@ -222,7 +210,6 @@ function openLinkIn(url, where, params) {
   var aAllowPinnedTabHostChange = !!params.allowPinnedTabHostChange;
   var aNoReferrer           = params.noReferrer;
   var aAllowPopups          = !!params.allowPopups;
-  var aUserContextId        = params.userContextId;
   var aIndicateErrorPageLoad = params.indicateErrorPageLoad;
   var aPrincipal            = params.originPrincipal;
   var aTriggeringPrincipal  = params.triggeringPrincipal;
@@ -268,7 +255,6 @@ function openLinkIn(url, where, params) {
   function useOAForPrincipal(principal) {
     if (principal && principal.isCodebasePrincipal) {
       let attrs = {
-        userContextId: aUserContextId,
         privateBrowsingId: aIsPrivate || (w && PrivateBrowsingUtils.isWindowPrivate(w)),
       };
       return Services.scriptSecurityManager.createCodebasePrincipal(principal.URI, attrs);
@@ -315,17 +301,12 @@ function openLinkIn(url, where, params) {
                                  createInstance(Ci.nsISupportsPRUint32);
     referrerPolicySupports.data = aReferrerPolicy;
 
-    var userContextIdSupports = Cc["@mozilla.org/supports-PRUint32;1"].
-                                 createInstance(Ci.nsISupportsPRUint32);
-    userContextIdSupports.data = aUserContextId;
-
     sa.appendElement(wuri, /* weak =*/ false);
     sa.appendElement(charset, /* weak =*/ false);
     sa.appendElement(referrerURISupports, /* weak =*/ false);
     sa.appendElement(aPostData, /* weak =*/ false);
     sa.appendElement(allowThirdPartyFixupSupports, /* weak =*/ false);
     sa.appendElement(referrerPolicySupports, /* weak =*/ false);
-    sa.appendElement(userContextIdSupports, /* weak =*/ false);
     sa.appendElement(aPrincipal, /* weak =*/ false);
     sa.appendElement(aTriggeringPrincipal, /* weak =*/ false);
 
@@ -342,7 +323,7 @@ function openLinkIn(url, where, params) {
   if (loadInBackground == null) {
     loadInBackground = aFromChrome ?
                          false :
-                         getBoolPref("browser.tabs.loadInBackground");
+                         Services.prefs.getBoolPref("browser.tabs.loadInBackground");
   }
 
   let uriObj;
@@ -418,8 +399,7 @@ function openLinkIn(url, where, params) {
       flags: flags,
       referrerURI: aNoReferrer ? null : aReferrerURI,
       referrerPolicy: aReferrerPolicy,
-      postData: aPostData,
-      userContextId: aUserContextId
+      postData: aPostData
     });
     browserUsedForLoad = aCurrentBrowser;
     break;
@@ -438,7 +418,6 @@ function openLinkIn(url, where, params) {
       skipAnimation: aSkipTabAnimation,
       allowMixedContent: aAllowMixedContent,
       noReferrer: aNoReferrer,
-      userContextId: aUserContextId,
       originPrincipal: aPrincipal,
       triggeringPrincipal: aTriggeringPrincipal,
     });
@@ -482,74 +461,6 @@ function checkForMiddleClick(node, event) {
   }
 }
 
-// Populate a menu with user-context menu items. This method should be called
-// by onpopupshowing passing the event as first argument.
-function createUserContextMenu(event, isContextMenu = false, excludeUserContextId = 0) {
-  while (event.target.hasChildNodes()) {
-    event.target.removeChild(event.target.firstChild);
-  }
-
-  let bundle = document.getElementById("bundle_browser");
-  let docfrag = document.createDocumentFragment();
-
-  // If we are excluding a userContextId, we want to add a 'no-container' item.
-  if (excludeUserContextId) {
-    let menuitem = document.createElement("menuitem");
-    menuitem.setAttribute("data-usercontextid", "0");
-    menuitem.setAttribute("label", bundle.getString("userContextNone.label"));
-    menuitem.setAttribute("accesskey", bundle.getString("userContextNone.accesskey"));
-
-    // We don't set an oncommand/command attribute because if we have
-    // to exclude a userContextId we are generating the contextMenu and
-    // isContextMenu will be true.
-
-    docfrag.appendChild(menuitem);
-
-    let menuseparator = document.createElement("menuseparator");
-    docfrag.appendChild(menuseparator);
-  }
-
-  ContextualIdentityService.getIdentities().forEach(identity => {
-    if (identity.userContextId == excludeUserContextId) {
-      return;
-    }
-
-    let menuitem = document.createElement("menuitem");
-    menuitem.setAttribute("data-usercontextid", identity.userContextId);
-    menuitem.setAttribute("label", ContextualIdentityService.getUserContextLabel(identity.userContextId));
-
-    if (identity.accessKey) {
-      menuitem.setAttribute("accesskey", bundle.getString(identity.accessKey));
-    }
-
-    menuitem.classList.add("menuitem-iconic");
-    menuitem.setAttribute("data-identity-color", identity.color);
-
-    if (!isContextMenu) {
-      menuitem.setAttribute("command", "Browser:NewUserContextTab");
-    }
-
-    menuitem.setAttribute("data-identity-icon", identity.icon);
-
-    docfrag.appendChild(menuitem);
-  });
-
-  if (!isContextMenu) {
-    docfrag.appendChild(document.createElement("menuseparator"));
-
-    let menuitem = document.createElement("menuitem");
-    menuitem.setAttribute("label",
-                          bundle.getString("userContext.aboutPage.label"));
-    menuitem.setAttribute("accesskey",
-                          bundle.getString("userContext.aboutPage.accesskey"));
-    menuitem.setAttribute("command", "Browser:OpenAboutContainers");
-    docfrag.appendChild(menuitem);
-  }
-
-  event.target.appendChild(docfrag);
-  return true;
-}
-
 // Closes all popups that are ancestors of the node.
 function closeMenus(node)
 {
@@ -652,7 +563,7 @@ function getShellService()
 
 function isBidiEnabled() {
   // first check the pref.
-  if (getBoolPref("bidi.browser.ui", false))
+  if (Services.prefs.getBoolPref("bidi.browser.ui", false))
     return true;
 
   // then check intl.uidirection.<locale>
@@ -914,7 +825,7 @@ function openHelpLink(aHelpTopic, aCalledFromModal, aWhere) {
 function openPrefsHelp() {
   // non-instant apply prefwindows are usually modal, so we can't open in the topmost window,
   // since its probably behind the window.
-  var instantApply = getBoolPref("browser.preferences.instantApply");
+  var instantApply = Services.prefs.getBoolPref("browser.preferences.instantApply");
 
   var helpTopic = document.getElementsByTagName("prefwindow")[0].currentPane.helpTopic;
   openHelpLink(helpTopic, !instantApply);
diff --git a/application/basilisk/base/jar.mn b/application/basilisk/base/jar.mn
index c288685b9..3b51e9555 100644
--- a/application/basilisk/base/jar.mn
+++ b/application/basilisk/base/jar.mn
@@ -15,7 +15,6 @@ browser.jar:
 *       content/browser/aboutDialog.xul               (content/aboutDialog.xul)
         content/browser/aboutDialog.js                (content/aboutDialog.js)
         content/browser/aboutDialog.css               (content/aboutDialog.css)
-        content/browser/aboutRobots.xhtml             (content/aboutRobots.xhtml)
 *       content/browser/abouthome/aboutHome.xhtml     (content/abouthome/aboutHome.xhtml)
         content/browser/abouthome/aboutHome.js        (content/abouthome/aboutHome.js)
 *       content/browser/abouthome/aboutHome.css       (content/abouthome/aboutHome.css)
@@ -59,8 +58,6 @@ browser.jar:
         content/browser/aboutaccounts/images/graphic_sync_intro@2x.png        (content/aboutaccounts/images/graphic_sync_intro@2x.png)
 
 
-        content/browser/aboutRobots-icon.png          (content/aboutRobots-icon.png)
-        content/browser/aboutRobots-widget-left.png   (content/aboutRobots-widget-left.png)
         content/browser/aboutTabCrashed.css           (content/aboutTabCrashed.css)
         content/browser/aboutTabCrashed.js            (content/aboutTabCrashed.js)
         content/browser/aboutTabCrashed.xhtml         (content/aboutTabCrashed.xhtml)
@@ -95,7 +92,7 @@ browser.jar:
 #endif
         content/browser/browser-thumbnails.js         (content/browser-thumbnails.js)
         content/browser/browser-trackingprotection.js (content/browser-trackingprotection.js)
-*       content/browser/tab-content.js                (content/tab-content.js)
+        content/browser/tab-content.js                (content/tab-content.js)
         content/browser/content.js                    (content/content.js)
         content/browser/defaultthemes/1.footer.jpg    (content/defaultthemes/1.footer.jpg)
         content/browser/defaultthemes/1.header.jpg    (content/defaultthemes/1.header.jpg)
@@ -163,7 +160,7 @@ browser.jar:
         content/browser/contentSearchUI.css           (content/contentSearchUI.css)
         content/browser/tabbrowser.css                (content/tabbrowser.css)
         content/browser/tabbrowser.xml                (content/tabbrowser.xml)
-*       content/browser/urlbarBindings.xml            (content/urlbarBindings.xml)
+        content/browser/urlbarBindings.xml            (content/urlbarBindings.xml)
         content/browser/utilityOverlay.js             (content/utilityOverlay.js)
         content/browser/usercontext.svg               (content/usercontext.svg)
         content/browser/web-panels.js                 (content/web-panels.js)
diff --git a/application/basilisk/branding/shared/uaoverrides.inc b/application/basilisk/branding/shared/uaoverrides.inc
index fb0e6b79b..307d889d9 100644
--- a/application/basilisk/branding/shared/uaoverrides.inc
+++ b/application/basilisk/branding/shared/uaoverrides.inc
@@ -26,6 +26,7 @@ pref("@GUAO_PREF@.addons.mozilla.org", "Mozilla/5.0 (@OS_SLICE@ rv:@GK_VERSION@)
 // Required for domains that have proven unresponsive to requests from users

 pref("@GUAO_PREF@.youtube.com","Mozilla/5.0 (@OS_SLICE@ rv:42.0) @GK_SLICE@ Firefox/42.0 @APP_SLICE@");

 pref("@GUAO_PREF@.gaming.youtube.com","Mozilla/5.0 (@OS_SLICE@ rv:42.0) @GK_SLICE@ Firefox/42.0");

+pref("@GUAO_PREF@.netflix.com","Mozilla/5.0 (@OS_SLICE@ rv:42.0) @GK_SLICE@ Firefox/42.0 @APP_SLICE@");

 

 // The never-ending Facebook debacle...

 

@@ -36,6 +37,7 @@ pref("@GUAO_PREF@.dailymotion.com","Mozilla/5.0 (@OS_SLICE@ rv:52.0) @GK_SLICE@
 // The following requires native mode. Or it blocks.. "too old firefox", breakage, etc.

 

 // UA-Sniffing domains below have indicated no interest in supporting Pale Moon (BOO!)

+pref("@GUAO_PREF@.whatsapp.com","Mozilla/5.0 (@OS_SLICE@ rv:61.0) @GK_SLICE@ Firefox/61.0");

 

 // UA-sniffing domains that are "app/vendor-specific" and do not like Pale Moon

 

diff --git a/application/basilisk/components/about/AboutRedirector.cpp b/application/basilisk/components/about/AboutRedirector.cpp
index b77949ea7..2b8608484 100644
--- a/application/basilisk/components/about/AboutRedirector.cpp
+++ b/application/basilisk/components/about/AboutRedirector.cpp
@@ -80,11 +80,6 @@ static RedirEntry kRedirMap[] = {
     nsIAboutModule::ALLOW_SCRIPT
   },
   {
-    "robots", "chrome://browser/content/aboutRobots.xhtml",
-    nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
-    nsIAboutModule::ALLOW_SCRIPT
-  },
-  {
     "searchreset", "chrome://browser/content/search/searchReset.xhtml",
     nsIAboutModule::ALLOW_SCRIPT |
     nsIAboutModule::HIDE_FROM_ABOUTABOUT
diff --git a/application/basilisk/components/build/nsModule.cpp b/application/basilisk/components/build/nsModule.cpp
index 1baccd710..4e082ab6c 100644
--- a/application/basilisk/components/build/nsModule.cpp
+++ b/application/basilisk/components/build/nsModule.cpp
@@ -94,7 +94,6 @@ static const mozilla::Module::ContractIDEntry kBrowserContracts[] = {
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "feeds", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "privatebrowsing", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "rights", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
-    { NS_ABOUT_MODULE_CONTRACTID_PREFIX "robots", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "searchreset", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "sessionrestore", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "welcomeback", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
diff --git a/application/basilisk/components/contextualidentity/content/usercontext.css b/application/basilisk/components/contextualidentity/content/usercontext.css
deleted file mode 100644
index 728275d9f..000000000
--- a/application/basilisk/components/contextualidentity/content/usercontext.css
+++ /dev/null
@@ -1,91 +0,0 @@
-[data-identity-color="blue"] {
-  --identity-tab-color: #0996f8;
-  --identity-icon-color: #00a7e0;
-}
-
-[data-identity-color="turquoise"] {
-  --identity-tab-color: #01bdad;
-  --identity-icon-color: #01bdad;
-}
-
-[data-identity-color="green"] {
-  --identity-tab-color: #57bd35;
-  --identity-icon-color:  #7dc14c;
-}
-
-[data-identity-color="yellow"] {
-  --identity-tab-color: #ffcb00;
-  --identity-icon-color: #ffcb00;
-}
-
-[data-identity-color="orange"] {
-  --identity-tab-color: #ff9216;
-  --identity-icon-color: #ff9216;
-}
-
-[data-identity-color="red"] {
-  --identity-tab-color: #d92215;
-  --identity-icon-color: #d92215;
-}
-
-[data-identity-color="pink"] {
-  --identity-tab-color: #ea385e;
-  --identity-icon-color: #ee5195;
-}
-
-[data-identity-color="purple"] {
-  --identity-tab-color: #7a2f7a;
-  --identity-icon-color: #7a2f7a;
-}
-
-[data-identity-icon="fingerprint"] {
-  --identity-icon: url("chrome://browser/content/usercontext.svg#fingerprint");
-}
-
-[data-identity-icon="briefcase"] {
-  --identity-icon: url("chrome://browser/content/usercontext.svg#briefcase");
-}
-
-[data-identity-icon="dollar"] {
-  --identity-icon: url("chrome://browser/content/usercontext.svg#dollar");
-}
-
-[data-identity-icon="cart"] {
-  --identity-icon: url("chrome://browser/content/usercontext.svg#cart");
-}
-
-[data-identity-icon="circle"] {
-  --identity-icon: url("chrome://browser/content/usercontext.svg#circle");
-}
-
-#userContext-indicator {
-  height: 16px;
-  width: 16px;
-}
-
-#userContext-label {
-  margin-inline-end: 3px;
-  color: var(--identity-tab-color);
-}
-
-#userContext-icons {
-  -moz-box-align: center;
-}
-
-.tabbrowser-tab[usercontextid] {
-  background-image: linear-gradient(to right, transparent 20%, var(--identity-tab-color) 30%, var(--identity-tab-color) 70%, transparent 80%);
-  background-size: auto 2px;
-  background-repeat: no-repeat;
-}
-
-.userContext-icon,
-.menuitem-iconic[data-usercontextid] > .menu-iconic-left > .menu-iconic-icon,
-.subviewbutton[usercontextid] > .toolbarbutton-icon,
-#userContext-indicator {
-  background-image: var(--identity-icon);
-  filter: url(chrome://browser/skin/filters.svg#fill);
-  fill: var(--identity-icon-color);
-  background-size: contain;
-  background-repeat: no-repeat;
-  background-position: center center;
-}
diff --git a/application/basilisk/components/contextualidentity/jar.mn b/application/basilisk/components/contextualidentity/jar.mn
deleted file mode 100644
index 848245949..000000000
--- a/application/basilisk/components/contextualidentity/jar.mn
+++ /dev/null
@@ -1,6 +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/.
-
-browser.jar:
-    content/browser/usercontext/usercontext.css (content/usercontext.css)
diff --git a/application/basilisk/components/contextualidentity/moz.build b/application/basilisk/components/contextualidentity/moz.build
deleted file mode 100644
index aac3a838c..000000000
--- a/application/basilisk/components/contextualidentity/moz.build
+++ /dev/null
@@ -1,7 +0,0 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-JAR_MANIFESTS += ['jar.mn']
diff --git a/application/basilisk/components/customizableui/CustomizableWidgets.jsm b/application/basilisk/components/customizableui/CustomizableWidgets.jsm
index 09b3f167e..401b7ca74 100644
--- a/application/basilisk/components/customizableui/CustomizableWidgets.jsm
+++ b/application/basilisk/components/customizableui/CustomizableWidgets.jsm
@@ -23,8 +23,6 @@ XPCOMUtils.defineLazyModuleGetter(this, "CharsetMenu",
   "resource://gre/modules/CharsetMenu.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
   "resource://gre/modules/PrivateBrowsingUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "ContextualIdentityService",
-  "resource://gre/modules/ContextualIdentityService.jsm");
 
 XPCOMUtils.defineLazyGetter(this, "CharsetBundle", function() {
   const kCharsetBundle = "chrome://global/locale/charsetMenu.properties";
@@ -977,89 +975,6 @@ const CustomizableWidgets = [
       let win = aEvent.view;
       win.MailIntegration.sendLinkForBrowser(win.gBrowser.selectedBrowser)
     }
-  }, {
-    id: "containers-panelmenu",
-    type: "view",
-    viewId: "PanelUI-containers",
-    hasObserver: false,
-    onCreated: function(aNode) {
-      let doc = aNode.ownerDocument;
-      let win = doc.defaultView;
-      let items = doc.getElementById("PanelUI-containersItems");
-
-      let onItemCommand = function (aEvent) {
-        let item = aEvent.target;
-        if (item.hasAttribute("usercontextid")) {
-          let userContextId = parseInt(item.getAttribute("usercontextid"));
-          win.openUILinkIn(win.BROWSER_NEW_TAB_URL, "tab", {userContextId});
-        }
-      };
-      items.addEventListener("command", onItemCommand);
-
-      if (PrivateBrowsingUtils.isWindowPrivate(win)) {
-        aNode.setAttribute("disabled", "true");
-      }
-
-      this.updateVisibility(aNode);
-
-      if (!this.hasObserver) {
-        Services.prefs.addObserver("privacy.userContext.enabled", this, true);
-        this.hasObserver = true;
-      }
-    },
-    onViewShowing: function(aEvent) {
-      let doc = aEvent.target.ownerDocument;
-
-      let items = doc.getElementById("PanelUI-containersItems");
-
-      while (items.firstChild) {
-        items.firstChild.remove();
-      }
-
-      let fragment = doc.createDocumentFragment();
-      let bundle = doc.getElementById("bundle_browser");
-
-      ContextualIdentityService.getIdentities().forEach(identity => {
-        let label = ContextualIdentityService.getUserContextLabel(identity.userContextId);
-
-        let item = doc.createElementNS(kNSXUL, "toolbarbutton");
-        item.setAttribute("label", label);
-        item.setAttribute("usercontextid", identity.userContextId);
-        item.setAttribute("class", "subviewbutton");
-        item.setAttribute("data-identity-color", identity.color);
-        item.setAttribute("data-identity-icon", identity.icon);
-
-        fragment.appendChild(item);
-      });
-
-      fragment.appendChild(doc.createElementNS(kNSXUL, "menuseparator"));
-
-      let item = doc.createElementNS(kNSXUL, "toolbarbutton");
-      item.setAttribute("label", bundle.getString("userContext.aboutPage.label"));
-      item.setAttribute("command", "Browser:OpenAboutContainers");
-      item.setAttribute("class", "subviewbutton");
-      fragment.appendChild(item);
-
-      items.appendChild(fragment);
-    },
-
-    updateVisibility(aNode) {
-      aNode.hidden = !Services.prefs.getBoolPref("privacy.userContext.enabled");
-    },
-
-    observe(aSubject, aTopic, aData) {
-      let {instances} = CustomizableUI.getWidget("containers-panelmenu");
-      for (let {node} of instances) {
-	if (node) {
-	  this.updateVisibility(node);
-	}
-      }
-    },
-
-    QueryInterface: XPCOMUtils.generateQI([
-      Ci.nsISupportsWeakReference,
-      Ci.nsIObserver
-    ]),
   }];
 
 let preferencesButton = {
diff --git a/application/basilisk/components/moz.build b/application/basilisk/components/moz.build
index 07e79bc36..65e8beb76 100644
--- a/application/basilisk/components/moz.build
+++ b/application/basilisk/components/moz.build
@@ -6,7 +6,6 @@
 
 DIRS += [
     'about',
-    'contextualidentity',
     'customizableui',
     'dirprovider',
     'downloads',
@@ -24,9 +23,6 @@ DIRS += [
     'translation',
 ]
 
-if CONFIG['MOZ_WEBEXTENSIONS']:
-    DIRS += ['webextensions']
-
 DIRS += ['build']
 
 XPIDL_SOURCES += [
diff --git a/application/basilisk/components/preferences/connection.js b/application/basilisk/components/preferences/connection.js
index f6b395a2d..349139bed 100644
--- a/application/basilisk/components/preferences/connection.js
+++ b/application/basilisk/components/preferences/connection.js
@@ -76,7 +76,7 @@ var gConnectionsDialog = {
     var autologinProxyPref = document.getElementById("signon.autologin.proxy");
     autologinProxyPref.disabled = proxyTypePref.value == 0;
     var noProxiesPref = document.getElementById("network.proxy.no_proxies_on");
-    noProxiesPref.disabled = proxyTypePref.value != 1;
+    noProxiesPref.disabled = proxyTypePref.value == 0;
 
     var autoconfigURLPref = document.getElementById("network.proxy.autoconfig_url");
     autoconfigURLPref.disabled = proxyTypePref.value != 2;
diff --git a/application/basilisk/components/preferences/connection.xul b/application/basilisk/components/preferences/connection.xul
index a3f0d082a..1eb0c1544 100644
--- a/application/basilisk/components/preferences/connection.xul
+++ b/application/basilisk/components/preferences/connection.xul
@@ -145,9 +145,6 @@
               </radiogroup>
               </box>
             </row>
-            <label value="&noproxy.label;" accesskey="&noproxy.accesskey;" control="networkProxyNone"/>
-            <textbox id="networkProxyNone" preference="network.proxy.no_proxies_on" multiline="true" rows="2"/>
-            <label value="&noproxyExplain.label;" control="networkProxyNone"/>
           </rows>
         </grid>
         <radio value="2" label="&autoTypeRadio.label;" accesskey="&autoTypeRadio.accesskey;"/>
@@ -162,6 +159,9 @@
       </radiogroup>
     </groupbox>
     <separator class="thin"/>
+    <label value="&noproxy.label;" accesskey="&noproxy.accesskey;" control="networkProxyNone"/>
+    <textbox id="networkProxyNone" preference="network.proxy.no_proxies_on" multiline="true" rows="2"/>
+    <label value="&noproxyExplain.label;" control="networkProxyNone"/>
     <checkbox id="autologinProxy"
               label="&autologinproxy.label;"
               accesskey="&autologinproxy.accesskey;"
diff --git a/application/basilisk/components/preferences/containers.js b/application/basilisk/components/preferences/containers.js
deleted file mode 100644
index 6ca5853f7..000000000
--- a/application/basilisk/components/preferences/containers.js
+++ /dev/null
@@ -1,176 +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/. */
-
-Components.utils.import("resource://gre/modules/Services.jsm");
-Components.utils.import("resource://gre/modules/ContextualIdentityService.jsm");
-
-const containersBundle = Services.strings.createBundle("chrome://browser/locale/preferences/containers.properties");
-
-const HTMLNS = "http://www.w3.org/1999/xhtml";
-
-let gContainersManager = {
-  icons: [
-    "fingerprint",
-    "briefcase",
-    "dollar",
-    "cart",
-    "circle"
-  ],
-
-  colors: [
-    "blue",
-    "turquoise",
-    "green",
-    "yellow",
-    "orange",
-    "red",
-    "pink",
-    "purple"
-  ],
-
-  onLoad() {
-    let params = window.arguments[0] || {};
-    this.init(params);
-  },
-
-  init(aParams) {
-    this.userContextId = aParams.userContextId || null;
-    this.identity = aParams.identity;
-
-    if (aParams.windowTitle) {
-      document.title = aParams.windowTitle;
-    }
-
-    const iconWrapper = document.getElementById("iconWrapper");
-    iconWrapper.appendChild(this.createIconButtons());
-
-    const colorWrapper = document.getElementById("colorWrapper");
-    colorWrapper.appendChild(this.createColorSwatches());
-
-    if (this.identity.name) {
-      const name = document.getElementById("name");
-      name.value = this.identity.name;
-      this.checkForm();
-    }
-
-    this.setLabelsMinWidth();
-
-    // This is to prevent layout jank caused by the svgs and outlines rendering at different times
-    document.getElementById("containers-content").removeAttribute("hidden");
-  },
-
-  setLabelsMinWidth() {
-    const labelMinWidth = containersBundle.GetStringFromName("containers.labelMinWidth");
-    const labels = [
-      document.getElementById("nameLabel"),
-      document.getElementById("iconLabel"),
-      document.getElementById("colorLabel")
-    ];
-    for (let label of labels) {
-      label.style.minWidth = labelMinWidth;
-    }
-  },
-
-  uninit() {
-  },
-
-  // Check if name string as to if the form can be submitted
-  checkForm() {
-    const name = document.getElementById("name");
-    let btnApplyChanges = document.getElementById("btnApplyChanges");
-    if (!name.value) {
-      btnApplyChanges.setAttribute("disabled", true);
-    } else {
-      btnApplyChanges.removeAttribute("disabled");
-    }
-  },
-
-  createIconButtons(defaultIcon) {
-    let radiogroup = document.createElement("radiogroup");
-    radiogroup.setAttribute("id", "icon");
-    radiogroup.className = "icon-buttons";
-
-    for (let icon of this.icons) {
-      let iconSwatch = document.createElement("radio");
-      iconSwatch.id = "iconbutton-" + icon;
-      iconSwatch.name = "icon";
-      iconSwatch.type = "radio";
-      iconSwatch.value = icon;
-
-      if (this.identity.icon && this.identity.icon == icon) {
-        iconSwatch.setAttribute("selected", true);
-      }
-
-      iconSwatch.setAttribute("label",
-        containersBundle.GetStringFromName(`containers.${icon}.label`));
-      let iconElement = document.createElement("hbox");
-      iconElement.className = 'userContext-icon';
-      iconElement.setAttribute("data-identity-icon", icon);
-
-      iconSwatch.appendChild(iconElement);
-      radiogroup.appendChild(iconSwatch);
-    }
-
-    return radiogroup;
-  },
-
-  createColorSwatches(defaultColor) {
-    let radiogroup = document.createElement("radiogroup");
-    radiogroup.setAttribute("id", "color");
-
-    for (let color of this.colors) {
-      let colorSwatch = document.createElement("radio");
-      colorSwatch.id = "colorswatch-" + color;
-      colorSwatch.name = "color";
-      colorSwatch.type = "radio";
-      colorSwatch.value = color;
-
-      if (this.identity.color && this.identity.color == color) {
-        colorSwatch.setAttribute("selected", true);
-      }
-
-      colorSwatch.setAttribute("label",
-        containersBundle.GetStringFromName(`containers.${color}.label`));
-      let iconElement = document.createElement("hbox");
-      iconElement.className = 'userContext-icon';
-      iconElement.setAttribute("data-identity-icon", "circle");
-      iconElement.setAttribute("data-identity-color", color);
-
-      colorSwatch.appendChild(iconElement);
-      radiogroup.appendChild(colorSwatch);
-    }
-    return radiogroup;
-  },
-
-  onApplyChanges() {
-    let icon = document.getElementById("icon").value;
-    let color = document.getElementById("color").value;
-    let name = document.getElementById("name").value;
-
-    if (this.icons.indexOf(icon) == -1) {
-      throw "Internal error. The icon value doesn't match.";
-    }
-
-    if (this.colors.indexOf(color) == -1) {
-      throw "Internal error. The color value doesn't match.";
-    }
-
-    if (this.userContextId) {
-      ContextualIdentityService.update(this.userContextId,
-        name,
-        icon,
-        color);
-    } else {
-      ContextualIdentityService.create(name,
-        icon,
-        color);
-    }
-    window.parent.location.reload()
-  },
-
-  onWindowKeyPress(aEvent) {
-    if (aEvent.keyCode == KeyEvent.DOM_VK_ESCAPE)
-      window.close();
-  }
-}
diff --git a/application/basilisk/components/preferences/containers.xul b/application/basilisk/components/preferences/containers.xul
deleted file mode 100644
index 62a775fe4..000000000
--- a/application/basilisk/components/preferences/containers.xul
+++ /dev/null
@@ -1,52 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-
-<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
-<?xml-stylesheet href="chrome://browser/skin/preferences/containers.css" type="text/css"?>
-
-<!DOCTYPE dialog SYSTEM "chrome://browser/locale/preferences/containers.dtd" >
-
-<window id="ContainersDialog" class="windowDialog"
-        windowtype="Browser:Permissions"
-        title="&window.title;"
-        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-        style="width: &window.width;;"
-        onload="gContainersManager.onLoad();"
-        onunload="gContainersManager.uninit();"
-        persist="screenX screenY width height"
-        onkeypress="gContainersManager.onWindowKeyPress(event);">
-
-  <script src="chrome://global/content/treeUtils.js"/>
-  <script src="chrome://browser/content/preferences/containers.js"/>
-
-  <stringbundle id="bundlePreferences"
-                src="chrome://browser/locale/preferences/preferences.properties"/>
-
-  <keyset>
-    <key key="&windowClose.key;" modifiers="accel" oncommand="window.close();"/>
-  </keyset>
-
-  <vbox class="contentPane largeDialogContainer" flex="1" hidden="true" id="containers-content">
-    <description id="permissionsText" control="url"/>
-    <separator class="thin"/>
-    <hbox align="start">
-      <label id="nameLabel" control="url" value="&name.label;" accesskey="&name.accesskey;"/>
-      <textbox id="name" flex="1" onkeyup="gContainersManager.checkForm();" />
-    </hbox>
-    <hbox align="center" id="iconWrapper">
-      <label id="iconLabel" control="url" value="&icon.label;" accesskey="&icon.accesskey;"/>
-    </hbox>
-    <hbox align="center" id="colorWrapper">
-      <label id="colorLabel" control="url" value="&color.label;" accesskey="&color.accesskey;"/>
-    </hbox>
-  </vbox>
-  <vbox>
-    <hbox class="actionButtons" align="right" flex="1">
-      <button id="btnApplyChanges" disabled="true" oncommand="gContainersManager.onApplyChanges();" icon="save"
-              label="&button.ok.label;" accesskey="&button.ok.accesskey;"/>
-    </hbox>
-  </vbox>
-</window>
diff --git a/application/basilisk/components/preferences/cookies.js b/application/basilisk/components/preferences/cookies.js
index c420855f8..4ede5b6e6 100644
--- a/application/basilisk/components/preferences/cookies.js
+++ b/application/basilisk/components/preferences/cookies.js
@@ -7,12 +7,8 @@ const nsICookie = Components.interfaces.nsICookie;
 
 Components.utils.import("resource://gre/modules/AppConstants.jsm");
 Components.utils.import("resource://gre/modules/PluralForm.jsm");
-Components.utils.import("resource://gre/modules/Services.jsm")
 Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
 
-XPCOMUtils.defineLazyModuleGetter(this, "ContextualIdentityService",
-                                  "resource://gre/modules/ContextualIdentityService.jsm");
-
 var gCookiesWindow = {
   _cm               : Components.classes["@mozilla.org/cookiemanager;1"]
                                 .getService(Components.interfaces.nsICookieManager),
@@ -38,10 +34,6 @@ var gCookiesWindow = {
     this._populateList(true);
 
     document.getElementById("filter").focus();
-
-    if (!Services.prefs.getBoolPref("privacy.userContext.enabled")) {
-      document.getElementById("userContextRow").hidden = true;
-    }
   },
 
   uninit: function () {
@@ -82,24 +74,11 @@ var gCookiesWindow = {
                                                aCookieB.originAttributes);
   },
 
-  _isPrivateCookie: function (aCookie) {
-      let { userContextId } = aCookie.originAttributes;
-      if (!userContextId) {
-        // Default identity is public.
-        return false;
-      }
-      return !ContextualIdentityService.getIdentityFromId(userContextId).public;
-  },
-
   observe: function (aCookie, aTopic, aData) {
     if (aTopic != "cookie-changed")
       return;
 
     if (aCookie instanceof Components.interfaces.nsICookie) {
-      if (this._isPrivateCookie(aCookie)) {
-        return;
-      }
-
       var strippedHost = this._makeStrippedHost(aCookie.host);
       if (aData == "changed")
         this._handleCookieChanged(aCookie, strippedHost);
@@ -498,9 +477,6 @@ var gCookiesWindow = {
     while (e.hasMoreElements()) {
       var cookie = e.getNext();
       if (cookie && cookie instanceof Components.interfaces.nsICookie) {
-        if (this._isPrivateCookie(cookie)) {
-          continue;
-        }
 
         var strippedHost = this._makeStrippedHost(cookie.host);
         this._addCookie(strippedHost, cookie, hostCount);
@@ -524,17 +500,9 @@ var gCookiesWindow = {
     return this._bundle.getString("expireAtEndOfSession");
   },
 
-  _getUserContextString: function(aUserContextId) {
-    if (parseInt(aUserContextId) == 0) {
-      return this._bundle.getString("defaultUserContextLabel");
-    }
-
-    return ContextualIdentityService.getUserContextLabel(aUserContextId);
-  },
-
   _updateCookieData: function (aItem) {
     var seln = this._view.selection;
-    var ids = ["name", "value", "host", "path", "isSecure", "expires", "userContext"];
+    var ids = ["name", "value", "host", "path", "isSecure", "expires"];
     var properties;
 
     if (aItem && !aItem.container && seln.count > 0) {
@@ -543,8 +511,7 @@ var gCookiesWindow = {
                      isDomain: aItem.isDomain ? this._bundle.getString("domainColon")
                                               : this._bundle.getString("hostColon"),
                      isSecure: aItem.isSecure ? this._bundle.getString("forSecureOnly")
-                                              : this._bundle.getString("forAnyConnection"),
-                     userContext: this._getUserContextString(aItem.originAttributes.userContextId) };
+                                              : this._bundle.getString("forAnyConnection") };
       for (let id of ids) {
         document.getElementById(id).disabled = false;
       }
@@ -553,7 +520,7 @@ var gCookiesWindow = {
       var noneSelected = this._bundle.getString("noCookieSelected");
       properties = { name: noneSelected, value: noneSelected, host: noneSelected,
                      path: noneSelected, expires: noneSelected,
-                     isSecure: noneSelected, userContext: noneSelected };
+                     isSecure: noneSelected };
       for (let id of ids) {
         document.getElementById(id).disabled = true;
       }
diff --git a/application/basilisk/components/preferences/cookies.xul b/application/basilisk/components/preferences/cookies.xul
index bd60d9346..d5fefdef7 100644
--- a/application/basilisk/components/preferences/cookies.xul
+++ b/application/basilisk/components/preferences/cookies.xul
@@ -85,10 +85,6 @@
             <hbox pack="end"><label id="expiresLabel" control="expires" value="&props.expires.label;"/></hbox>
             <textbox id="expires" readonly="true" class="plain"/>
           </row>
-          <row align="center" id="userContextRow">
-            <hbox pack="end"><label id="userContextLabel" control="userContext" value="&props.container.label;"/></hbox>
-            <textbox id="userContext" readonly="true" class="plain"/>
-          </row>
         </rows>
       </grid>
     </hbox>
diff --git a/application/basilisk/components/preferences/handlers.css b/application/basilisk/components/preferences/handlers.css
index 6af75a08b..d5f100831 100644
--- a/application/basilisk/components/preferences/handlers.css
+++ b/application/basilisk/components/preferences/handlers.css
@@ -10,10 +10,6 @@
   -moz-binding: url("chrome://browser/content/preferences/handlers.xml#handler-selected");
 }
 
-#containersView > richlistitem {
-  -moz-binding: url("chrome://browser/content/preferences/handlers.xml#container");
-}
-
 /**
  * Make the icons appear.
  * Note: we display the icon box for every item whether or not it has an icon
diff --git a/application/basilisk/components/preferences/handlers.xml b/application/basilisk/components/preferences/handlers.xml
index 0c629d759..ad07a493c 100644
--- a/application/basilisk/components/preferences/handlers.xml
+++ b/application/basilisk/components/preferences/handlers.xml
@@ -69,29 +69,6 @@
 
   </binding>
 
-  <binding id="container">
-    <content>
-      <xul:hbox flex="1" equalsize="always">
-        <xul:hbox flex="1" align="center">
-          <xul:hbox xbl:inherits="data-identity-icon=containerIcon,data-identity-color=containerColor" height="24" width="24" class="userContext-icon"/>
-          <xul:label flex="1" crop="end" xbl:inherits="value=containerName"/>
-        </xul:hbox>
-        <xul:hbox flex="1" align="right">
-          <xul:button anonid="preferencesButton"
-                      xbl:inherits="value=userContextId"
-                      onclick="gContainersPane.onPeferenceClick(event.originalTarget)">
-            Preferences
-          </xul:button>
-          <xul:button anonid="removeButton"
-                      xbl:inherits="value=userContextId"
-                      onclick="gContainersPane.onRemoveClick(event.originalTarget)">
-            Remove
-          </xul:button>
-        </xul:hbox>
-      </xul:hbox>
-    </content>
-  </binding>
-
   <binding id="offlineapp"
 	   extends="chrome://global/content/bindings/listbox.xml#listitem">
     <content>
diff --git a/application/basilisk/components/preferences/in-content/advanced.js b/application/basilisk/components/preferences/in-content/advanced.js
index 5f9458eee..850f0e09f 100644
--- a/application/basilisk/components/preferences/in-content/advanced.js
+++ b/application/basilisk/components/preferences/in-content/advanced.js
@@ -670,25 +670,6 @@ var gAdvancedPane = {
       // or the binary platform or OS version is not known.
       // A locked pref is sufficient to disable the radiogroup.
       radiogroup.disabled = !canCheck || enabledPref.locked || autoPref.locked;
-
-      if (AppConstants.MOZ_MAINTENANCE_SERVICE) {
-        // Check to see if the maintenance service is installed.
-        // If it is don't show the preference at all.
-        var installed;
-        try {
-          var wrk = Components.classes["@mozilla.org/windows-registry-key;1"]
-                    .createInstance(Components.interfaces.nsIWindowsRegKey);
-          wrk.open(wrk.ROOT_KEY_LOCAL_MACHINE,
-                   "SOFTWARE\\Mozilla\\MaintenanceService",
-                   wrk.ACCESS_READ | wrk.WOW64_64);
-          installed = wrk.readIntValue("Installed");
-          wrk.close();
-        } catch (e) {
-        }
-        if (installed != 1) {
-          document.getElementById("useService").hidden = true;
-        }
-      }
     }
   },
 
diff --git a/application/basilisk/components/preferences/in-content/advanced.xul b/application/basilisk/components/preferences/in-content/advanced.xul
index 4973f8e09..50e276501 100644
--- a/application/basilisk/components/preferences/in-content/advanced.xul
+++ b/application/basilisk/components/preferences/in-content/advanced.xul
@@ -79,12 +79,6 @@
   <preference id="app.update.disable_button.showUpdateHistory"
               name="app.update.disable_button.showUpdateHistory"
               type="bool"/>
-
-#ifdef MOZ_MAINTENANCE_SERVICE
-  <preference id="app.update.service.enabled"
-              name="app.update.service.enabled"
-              type="bool"/>
-#endif
 #endif
 
   <preference id="browser.search.update"
@@ -331,13 +325,6 @@
                   accesskey="&updateHistory.accesskey;"
                   preference="app.update.disable_button.showUpdateHistory"/>
         </hbox>
-
-#ifdef MOZ_MAINTENANCE_SERVICE
-        <checkbox id="useService"
-                  label="&useService.label;"
-                  accesskey="&useService.accesskey;"
-                  preference="app.update.service.enabled"/>
-#endif
       </groupbox>
 #endif
       <groupbox id="updateOthers" align="start">
diff --git a/application/basilisk/components/preferences/in-content/containers.js b/application/basilisk/components/preferences/in-content/containers.js
deleted file mode 100644
index 758e45fff..000000000
--- a/application/basilisk/components/preferences/in-content/containers.js
+++ /dev/null
@@ -1,73 +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/. */
-
-Components.utils.import("resource://gre/modules/AppConstants.jsm");
-Components.utils.import("resource://gre/modules/ContextualIdentityService.jsm");
-
-const containersBundle = Services.strings.createBundle("chrome://browser/locale/preferences/containers.properties");
-
-const defaultContainerIcon = "fingerprint";
-const defaultContainerColor = "blue";
-
-let gContainersPane = {
-
-  init() {
-    this._list = document.getElementById("containersView");
-
-    document.getElementById("backContainersLink").addEventListener("click", function () {
-      gotoPref("privacy");
-    });
-
-    this._rebuildView();
-  },
-
-  _rebuildView() {
-    const containers = ContextualIdentityService.getIdentities();
-    while (this._list.firstChild) {
-      this._list.firstChild.remove();
-    }
-    for (let container of containers) {
-      let item = document.createElement("richlistitem");
-      item.setAttribute("containerName", ContextualIdentityService.getUserContextLabel(container.userContextId));
-      item.setAttribute("containerIcon", container.icon);
-      item.setAttribute("containerColor", container.color);
-      item.setAttribute("userContextId", container.userContextId);
-
-      this._list.appendChild(item);
-    }
-  },
-
-  onRemoveClick(button) {
-    let userContextId = button.getAttribute("value");
-    ContextualIdentityService.remove(userContextId);
-    this._rebuildView();
-  },
-  onPeferenceClick(button) {
-    this.openPreferenceDialog(button.getAttribute("value"));
-  },
-
-  onAddButtonClick(button) {
-    this.openPreferenceDialog(null);
-  },
-
-  openPreferenceDialog(userContextId) {
-    let identity = {
-      name: "",
-      icon: defaultContainerIcon,
-      color: defaultContainerColor
-    };
-    let title;
-    if (userContextId) {
-      identity = ContextualIdentityService.getIdentityFromId(userContextId);
-      // This is required to get the translation string from defaults
-      identity.name = ContextualIdentityService.getUserContextLabel(identity.userContextId);
-      title = containersBundle.formatStringFromName("containers.updateContainerTitle", [identity.name], 1);
-    }
-
-    const params = { userContextId, identity, windowTitle: title };
-    gSubDialog.open("chrome://browser/content/preferences/containers.xul",
-                     null, params);
-  }
-
-};
diff --git a/application/basilisk/components/preferences/in-content/containers.xul b/application/basilisk/components/preferences/in-content/containers.xul
deleted file mode 100644
index e83bac1c3..000000000
--- a/application/basilisk/components/preferences/in-content/containers.xul
+++ /dev/null
@@ -1,54 +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/.
-
-<!-- Containers panel -->
-
-<script type="application/javascript"
-        src="chrome://browser/content/preferences/in-content/containers.js"/>
-
-<preferences id="containerPreferences" hidden="true" data-category="paneContainer">
-  <!-- Containers -->
-  <preference id="privacy.userContext.enabled"
-              name="privacy.userContext.enabled"
-              type="bool"/>
-
-</preferences>
-
-<hbox hidden="true"
-      class="container-header-links"
-      data-category="paneContainers">
-  <label class="text-link" id="backContainersLink" value="&backLink.label;" />
-</hbox>
-
-<hbox id="header-containers"
-      class="header"
-      hidden="true"
-      data-category="paneContainers">
-  <label class="header-name" flex="1">&paneContainers.title;</label>
-  <button class="help-button"
-          aria-label="&helpButton.label;"/>
-</hbox>
-
-<!-- Containers -->
-<groupbox id="browserContainersGroup" data-category="paneContainers" hidden="true">
-  <vbox id="browserContainersbox">
-
-    <richlistbox id="containersView" orient="vertical" persist="lastSelectedType"
-                 flex="1">
-      <listheader equalsize="always">
-          <treecol id="typeColumn" label="&label.label;" value="type"
-                   persist="sortDirection"
-                   flex="1" sortDirection="ascending"/>
-          <treecol id="actionColumn" value="action"
-                   persist="sortDirection"
-                   flex="1"/>
-      </listheader>
-    </richlistbox>
-  </vbox>
-  <vbox>
-    <hbox flex="1">
-      <button onclick="gContainersPane.onAddButtonClick();" accesskey="&addButton.accesskey;" label="&addButton.label;"/>
-    </hbox>
-  </vbox>
-</groupbox>
diff --git a/application/basilisk/components/preferences/in-content/jar.mn b/application/basilisk/components/preferences/in-content/jar.mn
index e61a88856..70544f332 100644
--- a/application/basilisk/components/preferences/in-content/jar.mn
+++ b/application/basilisk/components/preferences/in-content/jar.mn
@@ -9,7 +9,6 @@ browser.jar:
 
    content/browser/preferences/in-content/main.js
 *  content/browser/preferences/in-content/privacy.js
-   content/browser/preferences/in-content/containers.js
    content/browser/preferences/in-content/advanced.js
    content/browser/preferences/in-content/applications.js
 *  content/browser/preferences/in-content/content.js
diff --git a/application/basilisk/components/preferences/in-content/preferences.js b/application/basilisk/components/preferences/in-content/preferences.js
index e18ab4b04..35e10c58d 100644
--- a/application/basilisk/components/preferences/in-content/preferences.js
+++ b/application/basilisk/components/preferences/in-content/preferences.js
@@ -61,7 +61,6 @@ function init_all() {
   register_module("paneGeneral", gMainPane);
   register_module("paneSearch", gSearchPane);
   register_module("panePrivacy", gPrivacyPane);
-  register_module("paneContainers", gContainersPane);
   register_module("paneAdvanced", gAdvancedPane);
   register_module("paneApplications", gApplicationsPane);
   register_module("paneContent", gContentPane);
diff --git a/application/basilisk/components/preferences/in-content/preferences.xul b/application/basilisk/components/preferences/in-content/preferences.xul
index 7ec7ef119..093516140 100644
--- a/application/basilisk/components/preferences/in-content/preferences.xul
+++ b/application/basilisk/components/preferences/in-content/preferences.xul
@@ -13,7 +13,6 @@
   href="chrome://browser/content/preferences/handlers.css"?>
 <?xml-stylesheet href="chrome://browser/skin/preferences/applications.css"?>
 <?xml-stylesheet href="chrome://browser/skin/preferences/in-content/search.css"?>
-<?xml-stylesheet href="chrome://browser/skin/preferences/in-content/containers.css"?>
 
 <!DOCTYPE page [
 <!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd">
@@ -27,8 +26,6 @@
 <!ENTITY % syncDTD SYSTEM "chrome://browser/locale/preferences/sync.dtd">
 <!ENTITY % securityDTD SYSTEM
   "chrome://browser/locale/preferences/security.dtd">
-<!ENTITY % containersDTD SYSTEM
-  "chrome://browser/locale/preferences/containers.dtd">
 <!ENTITY % sanitizeDTD SYSTEM "chrome://browser/locale/sanitize.dtd">
 <!ENTITY % mainDTD SYSTEM "chrome://browser/locale/preferences/main.dtd">
 <!ENTITY % aboutHomeDTD SYSTEM "chrome://browser/locale/aboutHome.dtd">
@@ -46,7 +43,6 @@
 %syncBrandDTD;
 %syncDTD;
 %securityDTD;
-%containersDTD;
 %sanitizeDTD;
 %mainDTD;
 %aboutHomeDTD;
@@ -134,12 +130,6 @@
         <label class="category-name" flex="1">&panePrivacy.title;</label>
       </richlistitem>
 
-      <richlistitem id="category-containers"
-                    class="category"
-                    value="paneContainers"
-                    helpTopic="prefs-containers"
-                    hidden="true"/>
-
       <richlistitem id="category-security"
                     class="category"
                     value="paneSecurity"
@@ -183,7 +173,6 @@
 #include main.xul
 #include search.xul
 #include privacy.xul
-#include containers.xul
 #include advanced.xul
 #include applications.xul
 #include content.xul
diff --git a/application/basilisk/components/preferences/in-content/privacy.js b/application/basilisk/components/preferences/in-content/privacy.js
index eab606e36..a976fb4fa 100644
--- a/application/basilisk/components/preferences/in-content/privacy.js
+++ b/application/basilisk/components/preferences/in-content/privacy.js
@@ -5,8 +5,6 @@
 Components.utils.import("resource://gre/modules/AppConstants.jsm");
 Components.utils.import("resource://gre/modules/PluralForm.jsm");
 
-XPCOMUtils.defineLazyModuleGetter(this, "ContextualIdentityService",
-                                  "resource://gre/modules/ContextualIdentityService.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "PluralForm",
                                   "resource://gre/modules/PluralForm.jsm");
 
@@ -62,59 +60,6 @@ var gPrivacyPane = {
   },
 
   /**
-   * Show the Containers UI depending on the privacy.userContext.ui.enabled pref.
-   */
-  _initBrowserContainers: function () {
-    if (!Services.prefs.getBoolPref("privacy.userContext.ui.enabled")) {
-      return;
-    }
-
-    let link = document.getElementById("browserContainersLearnMore");
-    link.href = Services.urlFormatter.formatURLPref("app.support.baseURL") + "containers";
-
-    document.getElementById("browserContainersbox").hidden = false;
-
-    document.getElementById("browserContainersCheckbox").checked =
-      Services.prefs.getBoolPref("privacy.userContext.enabled");
-  },
-
-  _checkBrowserContainers: function(event) {
-    let checkbox = document.getElementById("browserContainersCheckbox");
-    if (checkbox.checked) {
-      Services.prefs.setBoolPref("privacy.userContext.enabled", true);
-      return;
-    }
-
-    let count = ContextualIdentityService.countContainerTabs();
-    if (count == 0) {
-      Services.prefs.setBoolPref("privacy.userContext.enabled", false);
-      return;
-    }
-
-    let bundlePreferences = document.getElementById("bundlePreferences");
-
-    let title = bundlePreferences.getString("disableContainersAlertTitle");
-    let message = PluralForm.get(count, bundlePreferences.getString("disableContainersMsg"))
-                            .replace("#S", count)
-    let okButton = PluralForm.get(count, bundlePreferences.getString("disableContainersOkButton"))
-                             .replace("#S", count)
-    let cancelButton = bundlePreferences.getString("disableContainersButton2");
-
-    let buttonFlags = (Ci.nsIPrompt.BUTTON_TITLE_IS_STRING * Ci.nsIPrompt.BUTTON_POS_0) +
-                      (Ci.nsIPrompt.BUTTON_TITLE_IS_STRING * Ci.nsIPrompt.BUTTON_POS_1);
-
-    let rv = Services.prompt.confirmEx(window, title, message, buttonFlags,
-                                       okButton, cancelButton, null, null, {});
-    if (rv == 0) {
-      ContextualIdentityService.closeAllContainerTabs();
-      Services.prefs.setBoolPref("privacy.userContext.enabled", false);
-      return;
-    }
-
-    checkbox.checked = true;
-  },
-
-  /**
    * Sets up the UI for the number of days of history to keep, and updates the
    * label of the "Clear Now..." button.
    */
@@ -136,7 +81,6 @@ var gPrivacyPane = {
     this._initTrackingProtectionPBM();
 #endif
     this._initAutocomplete();
-    this._initBrowserContainers();
 
     setEventListener("privacy.sanitize.sanitizeOnShutdown", "change",
                      gPrivacyPane._updateSanitizeSettingsButton);
@@ -184,10 +128,6 @@ var gPrivacyPane = {
     setEventListener("changeBlockListPBM", "command",
                      gPrivacyPane.showBlockLists);
 #endif
-    setEventListener("browserContainersCheckbox", "command",
-                     gPrivacyPane._checkBrowserContainers);
-    setEventListener("browserContainersSettings", "command",
-                     gPrivacyPane.showContainerSettings);
   },
 
 #ifdef MOZ_SAFE_BROWSING
@@ -489,13 +429,6 @@ var gPrivacyPane = {
   },
 #endif
 
-  /**
-   * Displays container panel for customising and adding containers.
-   */
-  showContainerSettings() {
-    gotoPref("containers");
-  },
-
 #ifdef MOZ_SAFE_BROWSING
   /**
    * Displays the available block lists for tracking protection.
@@ -702,25 +635,4 @@ var gPrivacyPane = {
 
     settingsButton.disabled = !sanitizeOnShutdownPref.value;
    },
-
-  // CONTAINERS
-
-  /*
-   * preferences:
-   *
-   * privacy.userContext.enabled
-   * - true if containers is enabled
-   */
-
-   /**
-    * Enables/disables the Settings button used to configure containers
-    */
-   readBrowserContainersCheckbox: function ()
-   {
-     var pref = document.getElementById("privacy.userContext.enabled");
-     var settings = document.getElementById("browserContainersSettings");
-
-     settings.disabled = !pref.value;
-   }
-
 };
diff --git a/application/basilisk/components/preferences/in-content/privacy.xul b/application/basilisk/components/preferences/in-content/privacy.xul
index e6cdc5dd2..691cd6bf9 100644
--- a/application/basilisk/components/preferences/in-content/privacy.xul
+++ b/application/basilisk/components/preferences/in-content/privacy.xul
@@ -302,28 +302,3 @@
     &suggestionSettings.label;
   </label>
 </groupbox>
-
-<!-- Containers -->
-<groupbox id="browserContainersGroup" data-category="panePrivacy" hidden="true">
-  <vbox id="browserContainersbox" hidden="true">
-    <caption><label>&browserContainersHeader.label;
-      <label id="browserContainersLearnMore" class="text-link"
-             value="&browserContainersLearnMore.label;"/>
-    </label></caption>
-    <hbox align="start">
-      <vbox>
-        <checkbox id="browserContainersCheckbox"
-                  label="&browserContainersEnabled.label;"
-                  accesskey="&browserContainersEnabled.accesskey;"
-                  preference="privacy.userContext.enabled"
-                  onsyncfrompreference="return gPrivacyPane.readBrowserContainersCheckbox();"/>
-      </vbox>
-      <spacer flex="1"/>
-      <vbox>
-        <button id="browserContainersSettings"
-                label="&browserContainersSettings.label;"
-                accesskey="&browserContainersSettings.accesskey;"/>
-      </vbox>
-    </hbox>
-  </vbox>
-</groupbox>
diff --git a/application/basilisk/components/preferences/jar.mn b/application/basilisk/components/preferences/jar.mn
index 5b24e89df..f74be0820 100644
--- a/application/basilisk/components/preferences/jar.mn
+++ b/application/basilisk/components/preferences/jar.mn
@@ -24,8 +24,6 @@ browser.jar:
 *   content/browser/preferences/languages.xul
     content/browser/preferences/languages.js
     content/browser/preferences/permissions.xul
-    content/browser/preferences/containers.xul
-    content/browser/preferences/containers.js
     content/browser/preferences/permissions.js
     content/browser/preferences/sanitize.xul
     content/browser/preferences/sanitize.js
diff --git a/application/basilisk/components/sessionstore/ContentRestore.jsm b/application/basilisk/components/sessionstore/ContentRestore.jsm
index d4972bcaf..8b3867624 100644
--- a/application/basilisk/components/sessionstore/ContentRestore.jsm
+++ b/application/basilisk/components/sessionstore/ContentRestore.jsm
@@ -208,10 +208,6 @@ ContentRestoreInternal.prototype = {
                                   ? Utils.deserializePrincipal(loadArguments.triggeringPrincipal)
                                   : null;
 
-        if (loadArguments.userContextId) {
-          webNavigation.setOriginAttributesBeforeLoading({ userContextId: loadArguments.userContextId });
-        }
-
         webNavigation.loadURIWithOptions(loadArguments.uri, loadArguments.flags,
                                          referrer, referrerPolicy, postData,
                                          null, null, triggeringPrincipal);
diff --git a/application/basilisk/components/sessionstore/SessionHistory.jsm b/application/basilisk/components/sessionstore/SessionHistory.jsm
index 3d28d87db..907a60839 100644
--- a/application/basilisk/components/sessionstore/SessionHistory.jsm
+++ b/application/basilisk/components/sessionstore/SessionHistory.jsm
@@ -64,11 +64,10 @@ var SessionHistoryInternal = {
    *        The docShell that owns the session history.
    */
   collect: function (docShell) {
-    let loadContext = docShell.QueryInterface(Ci.nsILoadContext);
     let webNavigation = docShell.QueryInterface(Ci.nsIWebNavigation);
     let history = webNavigation.sessionHistory.QueryInterface(Ci.nsISHistoryInternal);
 
-    let data = {entries: [], userContextId: loadContext.originAttributes.userContextId };
+    let data = {entries: []};
 
     if (history && history.count > 0) {
       // Loop over the transaction linked list directly so we can get the
diff --git a/application/basilisk/components/sessionstore/SessionStore.jsm b/application/basilisk/components/sessionstore/SessionStore.jsm
index b599bc162..086bb914a 100644
--- a/application/basilisk/components/sessionstore/SessionStore.jsm
+++ b/application/basilisk/components/sessionstore/SessionStore.jsm
@@ -2204,10 +2204,9 @@ var SessionStoreInternal = {
     }
 
     // Create a new tab.
-    let userContextId = aTab.getAttribute("usercontextid");
     let newTab = aTab == aWindow.gBrowser.selectedTab ?
-      aWindow.gBrowser.addTab(null, {relatedToCurrent: true, ownerTab: aTab, userContextId}) :
-      aWindow.gBrowser.addTab(null, {userContextId});
+      aWindow.gBrowser.addTab(null, {relatedToCurrent: true, ownerTab: aTab}) :
+      aWindow.gBrowser.addTab();
 
     // Set tab title to "Connecting..." and start the throbber to pretend we're
     // doing something while actually waiting for data from the frame script.
@@ -2296,7 +2295,7 @@ var SessionStoreInternal = {
 
     // create a new tab
     let tabbrowser = aWindow.gBrowser;
-    let tab = tabbrowser.selectedTab = tabbrowser.addTab(null, state);
+    let tab = tabbrowser.selectedTab = tabbrowser.addTab();
 
     // restore tab content
     this.restoreTab(tab, state);
@@ -3100,31 +3099,13 @@ var SessionStoreInternal = {
     let numVisibleTabs = 0;
 
     for (var t = 0; t < newTabCount; t++) {
-      // When trying to restore into existing tab, we also take the userContextId
-      // into account if present.
-      let userContextId = winData.tabs[t].userContextId;
-      let reuseExisting = t < openTabCount &&
-                          (tabbrowser.tabs[t].getAttribute("usercontextid") == (userContextId || ""));
-      // If the tab is pinned, then we'll be loading it right away, and
-      // there's no need to cause a remoteness flip by loading it initially
-      // non-remote.
-      let forceNotRemote = !winData.tabs[t].pinned;
-      let tab = reuseExisting ? tabbrowser.tabs[t] :
-                                tabbrowser.addTab("about:blank",
-                                                  {skipAnimation: true,
-                                                   forceNotRemote,
-                                                   userContextId,
-                                                   skipBackgroundNotify: true});
-
-      // If we inserted a new tab because the userContextId didn't match with the
-      // open tab, even though `t < openTabCount`, we need to remove that open tab
-      // and put the newly added tab in its place.
-      if (!reuseExisting && t < openTabCount) {
-        tabbrowser.removeTab(tabbrowser.tabs[t]);
-        tabbrowser.moveTabTo(tab, t);
-      }
-
-      tabs.push(tab);
+      tabs.push(t < openTabCount ?
+                tabbrowser.tabs[t] :
+                tabbrowser.addTab("about:blank", {
+                  skipAnimation: true,
+                  forceNotRemote: true,
+                  skipBackgroundNotify: true
+                }));
 
       if (winData.tabs[t].pinned)
         tabbrowser.pinTab(tabs[t]);
@@ -3531,9 +3512,6 @@ var SessionStoreInternal = {
     let uri = activePageData ? activePageData.url || null : null;
     if (aLoadArguments) {
       uri = aLoadArguments.uri;
-      if (aLoadArguments.userContextId) {
-        browser.setAttribute("usercontextid", aLoadArguments.userContextId);
-      }
     }
 
     // We have to mark this tab as restoring first, otherwise
diff --git a/application/basilisk/components/sessionstore/TabState.jsm b/application/basilisk/components/sessionstore/TabState.jsm
index f22c52fe3..ac846031b 100644
--- a/application/basilisk/components/sessionstore/TabState.jsm
+++ b/application/basilisk/components/sessionstore/TabState.jsm
@@ -181,10 +181,6 @@ var TabStateInternal = {
       if (key === "history") {
         tabData.entries = value.entries;
 
-        if (value.hasOwnProperty("userContextId")) {
-          tabData.userContextId = value.userContextId;
-        }
-
         if (value.hasOwnProperty("index")) {
           tabData.index = value.index;
         }
diff --git a/application/basilisk/components/webextensions/.eslintrc.js b/application/basilisk/components/webextensions/.eslintrc.js
deleted file mode 100644
index 81a11c4ac..000000000
--- a/application/basilisk/components/webextensions/.eslintrc.js
+++ /dev/null
@@ -1,22 +0,0 @@
-"use strict";
-
-module.exports = {  // eslint-disable-line no-undef
-  "extends": "../../../toolkit/components/extensions/.eslintrc.js",
-
-  "globals": {
-    "AllWindowEvents": true,
-    "browserActionFor": true,
-    "currentWindow": true,
-    "EventEmitter": true,
-    "getCookieStoreIdForTab": true,
-    "IconDetails": true,
-    "makeWidgetId": true,
-    "pageActionFor": true,
-    "PanelPopup": true,
-    "TabContext": true,
-    "ViewPopup": true,
-    "WindowEventManager": true,
-    "WindowListManager": true,
-    "WindowManager": true,
-  },
-};
diff --git a/application/basilisk/components/webextensions/ext-bookmarks.js b/application/basilisk/components/webextensions/ext-bookmarks.js
deleted file mode 100644
index 399f6212d..000000000
--- a/application/basilisk/components/webextensions/ext-bookmarks.js
+++ /dev/null
@@ -1,374 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
-
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-const {
-  SingletonEventManager,
-} = ExtensionUtils;
-
-XPCOMUtils.defineLazyModuleGetter(this, "EventEmitter",
-                                  "resource://devtools/shared/event-emitter.js");
-XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
-                                  "resource://gre/modules/PlacesUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Task",
-                                  "resource://gre/modules/Task.jsm");
-
-let listenerCount = 0;
-
-function getTree(rootGuid, onlyChildren) {
-  function convert(node, parent) {
-    let treenode = {
-      id: node.guid,
-      title: node.title || "",
-      index: node.index,
-      dateAdded: node.dateAdded / 1000,
-    };
-
-    if (parent && node.guid != PlacesUtils.bookmarks.rootGuid) {
-      treenode.parentId = parent.guid;
-    }
-
-    if (node.type == PlacesUtils.TYPE_X_MOZ_PLACE) {
-      // This isn't quite correct. Recently Bookmarked ends up here ...
-      treenode.url = node.uri;
-    } else {
-      treenode.dateGroupModified = node.lastModified / 1000;
-
-      if (node.children && !onlyChildren) {
-        treenode.children = node.children.map(child => convert(child, node));
-      }
-    }
-
-    return treenode;
-  }
-
-  return PlacesUtils.promiseBookmarksTree(rootGuid, {
-    excludeItemsCallback: item => {
-      if (item.type == PlacesUtils.TYPE_X_MOZ_PLACE_SEPARATOR) {
-        return true;
-      }
-      return item.annos &&
-             item.annos.find(a => a.name == PlacesUtils.EXCLUDE_FROM_BACKUP_ANNO);
-    },
-  }).then(root => {
-    if (onlyChildren) {
-      let children = root.children || [];
-      return children.map(child => convert(child, root));
-    }
-    // It seems like the array always just contains the root node.
-    return [convert(root, null)];
-  }).catch(e => Promise.reject({message: e.message}));
-}
-
-function convert(result) {
-  let node = {
-    id: result.guid,
-    title: result.title || "",
-    index: result.index,
-    dateAdded: result.dateAdded.getTime(),
-  };
-
-  if (result.guid != PlacesUtils.bookmarks.rootGuid) {
-    node.parentId = result.parentGuid;
-  }
-
-  if (result.type == PlacesUtils.bookmarks.TYPE_BOOKMARK) {
-    node.url = result.url.href; // Output is always URL object.
-  } else {
-    node.dateGroupModified = result.lastModified.getTime();
-  }
-
-  return node;
-}
-
-let observer = {
-  skipTags: true,
-  skipDescendantsOnItemRemoval: true,
-
-  onBeginUpdateBatch() {},
-  onEndUpdateBatch() {},
-
-  onItemAdded(id, parentId, index, itemType, uri, title, dateAdded, guid, parentGuid, source) {
-    if (itemType == PlacesUtils.bookmarks.TYPE_SEPARATOR) {
-      return;
-    }
-
-    let bookmark = {
-      id: guid,
-      parentId: parentGuid,
-      index,
-      title,
-      dateAdded: dateAdded / 1000,
-    };
-
-    if (itemType == PlacesUtils.bookmarks.TYPE_BOOKMARK) {
-      bookmark.url = uri.spec;
-    } else {
-      bookmark.dateGroupModified = bookmark.dateAdded;
-    }
-
-    this.emit("created", bookmark);
-  },
-
-  onItemVisited() {},
-
-  onItemMoved(id, oldParentId, oldIndex, newParentId, newIndex, itemType, guid, oldParentGuid, newParentGuid, source) {
-    if (itemType == PlacesUtils.bookmarks.TYPE_SEPARATOR) {
-      return;
-    }
-
-    let info = {
-      parentId: newParentGuid,
-      index: newIndex,
-      oldParentId: oldParentGuid,
-      oldIndex,
-    };
-    this.emit("moved", {guid, info});
-  },
-
-  onItemRemoved(id, parentId, index, itemType, uri, guid, parentGuid, source) {
-    if (itemType == PlacesUtils.bookmarks.TYPE_SEPARATOR) {
-      return;
-    }
-
-    let node = {
-      id: guid,
-      parentId: parentGuid,
-      index,
-    };
-
-    if (itemType == PlacesUtils.bookmarks.TYPE_BOOKMARK) {
-      node.url = uri.spec;
-    }
-
-    this.emit("removed", {guid, info: {parentId: parentGuid, index, node}});
-  },
-
-  onItemChanged(id, prop, isAnno, val, lastMod, itemType, parentId, guid, parentGuid, oldVal, source) {
-    if (itemType == PlacesUtils.bookmarks.TYPE_SEPARATOR) {
-      return;
-    }
-
-    let info = {};
-    if (prop == "title") {
-      info.title = val;
-    } else if (prop == "uri") {
-      info.url = val;
-    } else {
-      // Not defined yet.
-      return;
-    }
-
-    this.emit("changed", {guid, info});
-  },
-};
-EventEmitter.decorate(observer);
-
-function decrementListeners() {
-  listenerCount -= 1;
-  if (!listenerCount) {
-    PlacesUtils.bookmarks.removeObserver(observer);
-  }
-}
-
-function incrementListeners() {
-  listenerCount++;
-  if (listenerCount == 1) {
-    PlacesUtils.bookmarks.addObserver(observer, false);
-  }
-}
-
-extensions.registerSchemaAPI("bookmarks", "addon_parent", context => {
-  return {
-    bookmarks: {
-      get: function(idOrIdList) {
-        let list = Array.isArray(idOrIdList) ? idOrIdList : [idOrIdList];
-
-        return Task.spawn(function* () {
-          let bookmarks = [];
-          for (let id of list) {
-            let bookmark = yield PlacesUtils.bookmarks.fetch({guid: id});
-            if (!bookmark) {
-              throw new Error("Bookmark not found");
-            }
-            bookmarks.push(convert(bookmark));
-          }
-          return bookmarks;
-        }).catch(error => Promise.reject({message: error.message}));
-      },
-
-      getChildren: function(id) {
-        // TODO: We should optimize this.
-        return getTree(id, true);
-      },
-
-      getTree: function() {
-        return getTree(PlacesUtils.bookmarks.rootGuid, false);
-      },
-
-      getSubTree: function(id) {
-        return getTree(id, false);
-      },
-
-      search: function(query) {
-        return PlacesUtils.bookmarks.search(query).then(result => result.map(convert));
-      },
-
-      getRecent: function(numberOfItems) {
-        return PlacesUtils.bookmarks.getRecent(numberOfItems).then(result => result.map(convert));
-      },
-
-      create: function(bookmark) {
-        let info = {
-          title: bookmark.title || "",
-        };
-
-        // If url is NULL or missing, it will be a folder.
-        if (bookmark.url !== null) {
-          info.type = PlacesUtils.bookmarks.TYPE_BOOKMARK;
-          info.url = bookmark.url || "";
-        } else {
-          info.type = PlacesUtils.bookmarks.TYPE_FOLDER;
-        }
-
-        if (bookmark.index !== null) {
-          info.index = bookmark.index;
-        }
-
-        if (bookmark.parentId !== null) {
-          info.parentGuid = bookmark.parentId;
-        } else {
-          info.parentGuid = PlacesUtils.bookmarks.unfiledGuid;
-        }
-
-        try {
-          return PlacesUtils.bookmarks.insert(info).then(convert)
-            .catch(error => Promise.reject({message: error.message}));
-        } catch (e) {
-          return Promise.reject({message: `Invalid bookmark: ${JSON.stringify(info)}`});
-        }
-      },
-
-      move: function(id, destination) {
-        let info = {
-          guid: id,
-        };
-
-        if (destination.parentId !== null) {
-          info.parentGuid = destination.parentId;
-        }
-        info.index = (destination.index === null) ?
-          PlacesUtils.bookmarks.DEFAULT_INDEX : destination.index;
-
-        try {
-          return PlacesUtils.bookmarks.update(info).then(convert)
-            .catch(error => Promise.reject({message: error.message}));
-        } catch (e) {
-          return Promise.reject({message: `Invalid bookmark: ${JSON.stringify(info)}`});
-        }
-      },
-
-      update: function(id, changes) {
-        let info = {
-          guid: id,
-        };
-
-        if (changes.title !== null) {
-          info.title = changes.title;
-        }
-        if (changes.url !== null) {
-          info.url = changes.url;
-        }
-
-        try {
-          return PlacesUtils.bookmarks.update(info).then(convert)
-            .catch(error => Promise.reject({message: error.message}));
-        } catch (e) {
-          return Promise.reject({message: `Invalid bookmark: ${JSON.stringify(info)}`});
-        }
-      },
-
-      remove: function(id) {
-        let info = {
-          guid: id,
-        };
-
-        // The API doesn't give you the old bookmark at the moment
-        try {
-          return PlacesUtils.bookmarks.remove(info, {preventRemovalOfNonEmptyFolders: true}).then(result => {})
-            .catch(error => Promise.reject({message: error.message}));
-        } catch (e) {
-          return Promise.reject({message: `Invalid bookmark: ${JSON.stringify(info)}`});
-        }
-      },
-
-      removeTree: function(id) {
-        let info = {
-          guid: id,
-        };
-
-        try {
-          return PlacesUtils.bookmarks.remove(info).then(result => {})
-            .catch(error => Promise.reject({message: error.message}));
-        } catch (e) {
-          return Promise.reject({message: `Invalid bookmark: ${JSON.stringify(info)}`});
-        }
-      },
-
-      onCreated: new SingletonEventManager(context, "bookmarks.onCreated", fire => {
-        let listener = (event, bookmark) => {
-          context.runSafe(fire, bookmark.id, bookmark);
-        };
-
-        observer.on("created", listener);
-        incrementListeners();
-        return () => {
-          observer.off("created", listener);
-          decrementListeners();
-        };
-      }).api(),
-
-      onRemoved: new SingletonEventManager(context, "bookmarks.onRemoved", fire => {
-        let listener = (event, data) => {
-          context.runSafe(fire, data.guid, data.info);
-        };
-
-        observer.on("removed", listener);
-        incrementListeners();
-        return () => {
-          observer.off("removed", listener);
-          decrementListeners();
-        };
-      }).api(),
-
-      onChanged: new SingletonEventManager(context, "bookmarks.onChanged", fire => {
-        let listener = (event, data) => {
-          context.runSafe(fire, data.guid, data.info);
-        };
-
-        observer.on("changed", listener);
-        incrementListeners();
-        return () => {
-          observer.off("changed", listener);
-          decrementListeners();
-        };
-      }).api(),
-
-      onMoved: new SingletonEventManager(context, "bookmarks.onMoved", fire => {
-        let listener = (event, data) => {
-          context.runSafe(fire, data.guid, data.info);
-        };
-
-        observer.on("moved", listener);
-        incrementListeners();
-        return () => {
-          observer.off("moved", listener);
-          decrementListeners();
-        };
-      }).api(),
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-browserAction.js b/application/basilisk/components/webextensions/ext-browserAction.js
deleted file mode 100644
index 2c82ac701..000000000
--- a/application/basilisk/components/webextensions/ext-browserAction.js
+++ /dev/null
@@ -1,531 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-XPCOMUtils.defineLazyModuleGetter(this, "CustomizableUI",
-                                  "resource:///modules/CustomizableUI.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "clearTimeout",
-                                  "resource://gre/modules/Timer.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "setTimeout",
-                                  "resource://gre/modules/Timer.jsm");
-
-XPCOMUtils.defineLazyServiceGetter(this, "DOMUtils",
-                                   "@mozilla.org/inspector/dom-utils;1",
-                                   "inIDOMUtils");
-
-Cu.import("resource://devtools/shared/event-emitter.js");
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-Cu.import("resource://gre/modules/Task.jsm");
-
-var {
-  EventManager,
-  IconDetails,
-} = ExtensionUtils;
-
-const POPUP_PRELOAD_TIMEOUT_MS = 200;
-
-const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
-
-function isAncestorOrSelf(target, node) {
-  for (; node; node = node.parentNode) {
-    if (node === target) {
-      return true;
-    }
-  }
-  return false;
-}
-
-// WeakMap[Extension -> BrowserAction]
-var browserActionMap = new WeakMap();
-
-// Responsible for the browser_action section of the manifest as well
-// as the associated popup.
-function BrowserAction(options, extension) {
-  this.extension = extension;
-
-  let widgetId = makeWidgetId(extension.id);
-  this.id = `${widgetId}-browser-action`;
-  this.viewId = `PanelUI-webext-${widgetId}-browser-action-view`;
-  this.widget = null;
-
-  this.pendingPopup = null;
-  this.pendingPopupTimeout = null;
-
-  this.tabManager = TabManager.for(extension);
-
-  this.defaults = {
-    enabled: true,
-    title: options.default_title || extension.name,
-    badgeText: "",
-    badgeBackgroundColor: null,
-    icon: IconDetails.normalize({path: options.default_icon}, extension),
-    popup: options.default_popup || "",
-  };
-
-  this.browserStyle = options.browser_style || false;
-  if (options.browser_style === null) {
-    this.extension.logger.warn("Please specify whether you want browser_style " +
-                               "or not in your browser_action options.");
-  }
-
-  this.tabContext = new TabContext(tab => Object.create(this.defaults),
-                                   extension);
-
-  EventEmitter.decorate(this);
-}
-
-BrowserAction.prototype = {
-  build() {
-    let widget = CustomizableUI.createWidget({
-      id: this.id,
-      viewId: this.viewId,
-      type: "view",
-      removable: true,
-      label: this.defaults.title || this.extension.name,
-      tooltiptext: this.defaults.title || "",
-      defaultArea: CustomizableUI.AREA_NAVBAR,
-
-      onBeforeCreated: document => {
-        let view = document.createElementNS(XUL_NS, "panelview");
-        view.id = this.viewId;
-        view.setAttribute("flex", "1");
-
-        document.getElementById("PanelUI-multiView").appendChild(view);
-      },
-
-      onDestroyed: document => {
-        let view = document.getElementById(this.viewId);
-        if (view) {
-          this.clearPopup();
-          CustomizableUI.hidePanelForNode(view);
-          view.remove();
-        }
-      },
-
-      onCreated: node => {
-        node.classList.add("badged-button");
-        node.classList.add("webextension-browser-action");
-        node.setAttribute("constrain-size", "true");
-
-        node.onmousedown = event => this.handleEvent(event);
-
-        this.updateButton(node, this.defaults);
-      },
-
-      onViewShowing: event => {
-        let document = event.target.ownerDocument;
-        let tabbrowser = document.defaultView.gBrowser;
-
-        let tab = tabbrowser.selectedTab;
-        let popupURL = this.getProperty(tab, "popup");
-        this.tabManager.addActiveTabPermission(tab);
-
-        // Popups are shown only if a popup URL is defined; otherwise
-        // a "click" event is dispatched. This is done for compatibility with the
-        // Google Chrome onClicked extension API.
-        if (popupURL) {
-          try {
-            let popup = this.getPopup(document.defaultView, popupURL);
-            event.detail.addBlocker(popup.attach(event.target));
-          } catch (e) {
-            Cu.reportError(e);
-            event.preventDefault();
-          }
-        } else {
-          // This isn't not a hack, but it seems to provide the correct behavior
-          // with the fewest complications.
-          event.preventDefault();
-          this.emit("click");
-        }
-      },
-    });
-
-    this.tabContext.on("tab-select", // eslint-disable-line mozilla/balanced-listeners
-                       (evt, tab) => { this.updateWindow(tab.ownerGlobal); });
-
-    this.widget = widget;
-  },
-
-  /**
-   * Triggers this browser action for the given window, with the same effects as
-   * if it were clicked by a user.
-   *
-   * This has no effect if the browser action is disabled for, or not
-   * present in, the given window.
-   */
-  triggerAction: Task.async(function* (window) {
-    let popup = ViewPopup.for(this.extension, window);
-    if (popup) {
-      popup.closePopup();
-      return;
-    }
-
-    let widget = this.widget.forWindow(window);
-    let tab = window.gBrowser.selectedTab;
-
-    if (!widget || !this.getProperty(tab, "enabled")) {
-      return;
-    }
-
-    // Popups are shown only if a popup URL is defined; otherwise
-    // a "click" event is dispatched. This is done for compatibility with the
-    // Google Chrome onClicked extension API.
-    if (this.getProperty(tab, "popup")) {
-      if (this.widget.areaType == CustomizableUI.TYPE_MENU_PANEL) {
-        yield window.PanelUI.show();
-      }
-
-      let event = new window.CustomEvent("command", {bubbles: true, cancelable: true});
-      widget.node.dispatchEvent(event);
-    } else {
-      this.emit("click");
-    }
-  }),
-
-  handleEvent(event) {
-    let button = event.target;
-    let window = button.ownerDocument.defaultView;
-
-    switch (event.type) {
-      case "mousedown":
-        if (event.button == 0) {
-          // Begin pre-loading the browser for the popup, so it's more likely to
-          // be ready by the time we get a complete click.
-          let tab = window.gBrowser.selectedTab;
-          let popupURL = this.getProperty(tab, "popup");
-          let enabled = this.getProperty(tab, "enabled");
-
-          if (popupURL && enabled) {
-            // Add permission for the active tab so it will exist for the popup.
-            // Store the tab to revoke the permission during clearPopup.
-            if (!this.pendingPopup && !this.tabManager.hasActiveTabPermission(tab)) {
-              this.tabManager.addActiveTabPermission(tab);
-              this.tabToRevokeDuringClearPopup = tab;
-            }
-
-            this.pendingPopup = this.getPopup(window, popupURL);
-            window.addEventListener("mouseup", this, true);
-          } else {
-            this.clearPopup();
-          }
-        }
-        break;
-
-      case "mouseup":
-        if (event.button == 0) {
-          this.clearPopupTimeout();
-          // If we have a pending pre-loaded popup, cancel it after we've waited
-          // long enough that we can be relatively certain it won't be opening.
-          if (this.pendingPopup) {
-            let {node} = this.widget.forWindow(window);
-            if (isAncestorOrSelf(node, event.originalTarget)) {
-              this.pendingPopupTimeout = setTimeout(() => this.clearPopup(),
-                                                    POPUP_PRELOAD_TIMEOUT_MS);
-            } else {
-              this.clearPopup();
-            }
-          }
-        }
-        break;
-    }
-  },
-
-  /**
-   * Returns a potentially pre-loaded popup for the given URL in the given
-   * window. If a matching pre-load popup already exists, returns that.
-   * Otherwise, initializes a new one.
-   *
-   * If a pre-load popup exists which does not match, it is destroyed before a
-   * new one is created.
-   *
-   * @param {Window} window
-   *        The browser window in which to create the popup.
-   * @param {string} popupURL
-   *        The URL to load into the popup.
-   * @returns {ViewPopup}
-   */
-  getPopup(window, popupURL) {
-    this.clearPopupTimeout();
-    let {pendingPopup} = this;
-    this.pendingPopup = null;
-
-    if (pendingPopup) {
-      if (pendingPopup.window === window && pendingPopup.popupURL === popupURL) {
-        return pendingPopup;
-      }
-      pendingPopup.destroy();
-    }
-
-    let fixedWidth = this.widget.areaType == CustomizableUI.TYPE_MENU_PANEL;
-    return new ViewPopup(this.extension, window, popupURL, this.browserStyle, fixedWidth);
-  },
-
-  /**
-   * Clears any pending pre-loaded popup and related timeouts.
-   */
-  clearPopup() {
-    this.clearPopupTimeout();
-    if (this.pendingPopup) {
-      if (this.tabToRevokeDuringClearPopup) {
-        this.tabManager.revokeActiveTabPermission(this.tabToRevokeDuringClearPopup);
-        this.tabToRevokeDuringClearPopup = null;
-      }
-      this.pendingPopup.destroy();
-      this.pendingPopup = null;
-    }
-  },
-
-  /**
-   * Clears any pending timeouts to clear stale, pre-loaded popups.
-   */
-  clearPopupTimeout() {
-    if (this.pendingPopup) {
-      this.pendingPopup.window.removeEventListener("mouseup", this, true);
-    }
-
-    if (this.pendingPopupTimeout) {
-      clearTimeout(this.pendingPopupTimeout);
-      this.pendingPopupTimeout = null;
-    }
-  },
-
-  // Update the toolbar button |node| with the tab context data
-  // in |tabData|.
-  updateButton(node, tabData) {
-    let title = tabData.title || this.extension.name;
-    node.setAttribute("tooltiptext", title);
-    node.setAttribute("label", title);
-
-    if (tabData.badgeText) {
-      node.setAttribute("badge", tabData.badgeText);
-    } else {
-      node.removeAttribute("badge");
-    }
-
-    if (tabData.enabled) {
-      node.removeAttribute("disabled");
-    } else {
-      node.setAttribute("disabled", "true");
-    }
-
-    let badgeNode = node.ownerDocument.getAnonymousElementByAttribute(node,
-                                        "class", "toolbarbutton-badge");
-    if (badgeNode) {
-      let color = tabData.badgeBackgroundColor;
-      if (color) {
-        color = `rgba(${color[0]}, ${color[1]}, ${color[2]}, ${color[3] / 255})`;
-      }
-      badgeNode.style.backgroundColor = color || "";
-    }
-
-    const LEGACY_CLASS = "toolbarbutton-legacy-addon";
-    node.classList.remove(LEGACY_CLASS);
-
-    let baseSize = 16;
-    let {icon, size} = IconDetails.getPreferredIcon(tabData.icon, this.extension, baseSize);
-
-    // If the best available icon size is not divisible by 16, check if we have
-    // an 18px icon to fall back to, and trim off the padding instead.
-    if (size % 16 && !icon.endsWith(".svg")) {
-      let result = IconDetails.getPreferredIcon(tabData.icon, this.extension, 18);
-
-      if (result.size % 18 == 0) {
-        baseSize = 18;
-        icon = result.icon;
-        node.classList.add(LEGACY_CLASS);
-      }
-    }
-
-    // These URLs should already be properly escaped, but make doubly sure CSS
-    // string escape characters are escaped here, since they could lead to a
-    // sandbox break.
-    let escape = str => str.replace(/[\\\s"]/g, encodeURIComponent);
-
-    let getIcon = size => escape(IconDetails.getPreferredIcon(tabData.icon, this.extension, size).icon);
-
-    node.setAttribute("style", `
-      --webextension-menupanel-image: url("${getIcon(32)}");
-      --webextension-menupanel-image-2x: url("${getIcon(64)}");
-      --webextension-toolbar-image: url("${escape(icon)}");
-      --webextension-toolbar-image-2x: url("${getIcon(baseSize * 2)}");
-    `);
-  },
-
-  // Update the toolbar button for a given window.
-  updateWindow(window) {
-    let widget = this.widget.forWindow(window);
-    if (widget) {
-      let tab = window.gBrowser.selectedTab;
-      this.updateButton(widget.node, this.tabContext.get(tab));
-    }
-  },
-
-  // Update the toolbar button when the extension changes the icon,
-  // title, badge, etc. If it only changes a parameter for a single
-  // tab, |tab| will be that tab. Otherwise it will be null.
-  updateOnChange(tab) {
-    if (tab) {
-      if (tab.selected) {
-        this.updateWindow(tab.ownerGlobal);
-      }
-    } else {
-      for (let window of WindowListManager.browserWindows()) {
-        this.updateWindow(window);
-      }
-    }
-  },
-
-  // tab is allowed to be null.
-  // prop should be one of "icon", "title", "badgeText", "popup", or "badgeBackgroundColor".
-  setProperty(tab, prop, value) {
-    if (tab == null) {
-      this.defaults[prop] = value;
-    } else if (value != null) {
-      this.tabContext.get(tab)[prop] = value;
-    } else {
-      delete this.tabContext.get(tab)[prop];
-    }
-
-    this.updateOnChange(tab);
-  },
-
-  // tab is allowed to be null.
-  // prop should be one of "title", "badgeText", "popup", or "badgeBackgroundColor".
-  getProperty(tab, prop) {
-    if (tab == null) {
-      return this.defaults[prop];
-    }
-    return this.tabContext.get(tab)[prop];
-  },
-
-  shutdown() {
-    this.tabContext.shutdown();
-    CustomizableUI.destroyWidget(this.id);
-  },
-};
-
-BrowserAction.for = (extension) => {
-  return browserActionMap.get(extension);
-};
-
-global.browserActionFor = BrowserAction.for;
-
-/* eslint-disable mozilla/balanced-listeners */
-extensions.on("manifest_browser_action", (type, directive, extension, manifest) => {
-  let browserAction = new BrowserAction(manifest.browser_action, extension);
-  browserAction.build();
-  browserActionMap.set(extension, browserAction);
-});
-
-extensions.on("shutdown", (type, extension) => {
-  if (browserActionMap.has(extension)) {
-    browserActionMap.get(extension).shutdown();
-    browserActionMap.delete(extension);
-  }
-});
-/* eslint-enable mozilla/balanced-listeners */
-
-extensions.registerSchemaAPI("browserAction", "addon_parent", context => {
-  let {extension} = context;
-  return {
-    browserAction: {
-      onClicked: new EventManager(context, "browserAction.onClicked", fire => {
-        let listener = () => {
-          let tab = TabManager.activeTab;
-          fire(TabManager.convert(extension, tab));
-        };
-        BrowserAction.for(extension).on("click", listener);
-        return () => {
-          BrowserAction.for(extension).off("click", listener);
-        };
-      }).api(),
-
-      enable: function(tabId) {
-        let tab = tabId !== null ? TabManager.getTab(tabId, context) : null;
-        BrowserAction.for(extension).setProperty(tab, "enabled", true);
-      },
-
-      disable: function(tabId) {
-        let tab = tabId !== null ? TabManager.getTab(tabId, context) : null;
-        BrowserAction.for(extension).setProperty(tab, "enabled", false);
-      },
-
-      setTitle: function(details) {
-        let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
-
-        let title = details.title;
-        // Clear the tab-specific title when given a null string.
-        if (tab && title == "") {
-          title = null;
-        }
-        BrowserAction.for(extension).setProperty(tab, "title", title);
-      },
-
-      getTitle: function(details) {
-        let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
-
-        let title = BrowserAction.for(extension).getProperty(tab, "title");
-        return Promise.resolve(title);
-      },
-
-      setIcon: function(details) {
-        let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
-
-        let icon = IconDetails.normalize(details, extension, context);
-        BrowserAction.for(extension).setProperty(tab, "icon", icon);
-      },
-
-      setBadgeText: function(details) {
-        let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
-
-        BrowserAction.for(extension).setProperty(tab, "badgeText", details.text);
-      },
-
-      getBadgeText: function(details) {
-        let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
-
-        let text = BrowserAction.for(extension).getProperty(tab, "badgeText");
-        return Promise.resolve(text);
-      },
-
-      setPopup: function(details) {
-        let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
-
-        // Note: Chrome resolves arguments to setIcon relative to the calling
-        // context, but resolves arguments to setPopup relative to the extension
-        // root.
-        // For internal consistency, we currently resolve both relative to the
-        // calling context.
-        let url = details.popup && context.uri.resolve(details.popup);
-        if (url && !context.checkLoadURL(url)) {
-          return Promise.reject({message: `Access denied for URL ${url}`});
-        }
-        BrowserAction.for(extension).setProperty(tab, "popup", url);
-      },
-
-      getPopup: function(details) {
-        let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
-
-        let popup = BrowserAction.for(extension).getProperty(tab, "popup");
-        return Promise.resolve(popup);
-      },
-
-      setBadgeBackgroundColor: function(details) {
-        let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
-        let color = details.color;
-        if (!Array.isArray(color)) {
-          let col = DOMUtils.colorToRGBA(color);
-          color = col && [col.r, col.g, col.b, Math.round(col.a * 255)];
-        }
-        BrowserAction.for(extension).setProperty(tab, "badgeBackgroundColor", color);
-      },
-
-      getBadgeBackgroundColor: function(details, callback) {
-        let tab = details.tabId !== null ? TabManager.getTab(details.tabId, context) : null;
-
-        let color = BrowserAction.for(extension).getProperty(tab, "badgeBackgroundColor");
-        return Promise.resolve(color || [0xd9, 0, 0, 255]);
-      },
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-c-contextMenus.js b/application/basilisk/components/webextensions/ext-c-contextMenus.js
deleted file mode 100644
index 9fde90808..000000000
--- a/application/basilisk/components/webextensions/ext-c-contextMenus.js
+++ /dev/null
@@ -1,158 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-// If id is not specified for an item we use an integer.
-// This ID need only be unique within a single addon. Since all addon code that
-// can use this API runs in the same process, this local variable suffices.
-var gNextMenuItemID = 0;
-
-// Map[Extension -> Map[string or id, ContextMenusClickPropHandler]]
-var gPropHandlers = new Map();
-
-// The contextMenus API supports an "onclick" attribute in the create/update
-// methods to register a callback. This class manages these onclick properties.
-class ContextMenusClickPropHandler {
-  constructor(context) {
-    this.context = context;
-    // Map[string or integer -> callback]
-    this.onclickMap = new Map();
-    this.dispatchEvent = this.dispatchEvent.bind(this);
-  }
-
-  // A listener on contextMenus.onClicked that forwards the event to the only
-  // listener, if any.
-  dispatchEvent(info, tab) {
-    let onclick = this.onclickMap.get(info.menuItemId);
-    if (onclick) {
-      // No need for runSafe or anything because we are already being run inside
-      // an event handler -- the event is just being forwarded to the actual
-      // handler.
-      onclick(info, tab);
-    }
-  }
-
-  // Sets the `onclick` handler for the given menu item.
-  // The `onclick` function MUST be owned by `this.context`.
-  setListener(id, onclick) {
-    if (this.onclickMap.size === 0) {
-      this.context.childManager.getParentEvent("contextMenus.onClicked").addListener(this.dispatchEvent);
-      this.context.callOnClose(this);
-    }
-    this.onclickMap.set(id, onclick);
-
-    let propHandlerMap = gPropHandlers.get(this.context.extension);
-    if (!propHandlerMap) {
-      propHandlerMap = new Map();
-    } else {
-      // If the current callback was created in a different context, remove it
-      // from the other context.
-      let propHandler = propHandlerMap.get(id);
-      if (propHandler && propHandler !== this) {
-        propHandler.unsetListener(id);
-      }
-    }
-    propHandlerMap.set(id, this);
-    gPropHandlers.set(this.context.extension, propHandlerMap);
-  }
-
-  // Deletes the `onclick` handler for the given menu item.
-  // The `onclick` function MUST be owned by `this.context`.
-  unsetListener(id) {
-    if (!this.onclickMap.delete(id)) {
-      return;
-    }
-    if (this.onclickMap.size === 0) {
-      this.context.childManager.getParentEvent("contextMenus.onClicked").removeListener(this.dispatchEvent);
-      this.context.forgetOnClose(this);
-    }
-    let propHandlerMap = gPropHandlers.get(this.context.extension);
-    propHandlerMap.delete(id);
-    if (propHandlerMap.size === 0) {
-      gPropHandlers.delete(this.context.extension);
-    }
-  }
-
-  // Deletes the `onclick` handler for the given menu item, if any, regardless
-  // of the context where it was created.
-  unsetListenerFromAnyContext(id) {
-    let propHandlerMap = gPropHandlers.get(this.context.extension);
-    let propHandler = propHandlerMap && propHandlerMap.get(id);
-    if (propHandler) {
-      propHandler.unsetListener(id);
-    }
-  }
-
-  // Remove all `onclick` handlers of the extension.
-  deleteAllListenersFromExtension() {
-    let propHandlerMap = gPropHandlers.get(this.context.extension);
-    if (propHandlerMap) {
-      for (let [id, propHandler] of propHandlerMap) {
-        propHandler.unsetListener(id);
-      }
-    }
-  }
-
-  // Removes all `onclick` handlers from this context.
-  close() {
-    for (let id of this.onclickMap.keys()) {
-      this.unsetListener(id);
-    }
-  }
-}
-
-extensions.registerSchemaAPI("contextMenus", "addon_child", context => {
-  let onClickedProp = new ContextMenusClickPropHandler(context);
-
-  return {
-    contextMenus: {
-      create(createProperties, callback) {
-        if (createProperties.id === null) {
-          createProperties.id = ++gNextMenuItemID;
-        }
-        let {onclick} = createProperties;
-        delete createProperties.onclick;
-        context.childManager.callParentAsyncFunction("contextMenus.createInternal", [
-          createProperties,
-        ]).then(() => {
-          if (onclick) {
-            onClickedProp.setListener(createProperties.id, onclick);
-          }
-          if (callback) {
-            callback();
-          }
-        });
-        return createProperties.id;
-      },
-
-      update(id, updateProperties) {
-        let {onclick} = updateProperties;
-        delete updateProperties.onclick;
-        return context.childManager.callParentAsyncFunction("contextMenus.update", [
-          id,
-          updateProperties,
-        ]).then(() => {
-          if (onclick) {
-            onClickedProp.setListener(id, onclick);
-          } else if (onclick === null) {
-            onClickedProp.unsetListenerFromAnyContext(id);
-          }
-          // else onclick is not set so it should not be changed.
-        });
-      },
-
-      remove(id) {
-        onClickedProp.unsetListenerFromAnyContext(id);
-        return context.childManager.callParentAsyncFunction("contextMenus.remove", [
-          id,
-        ]);
-      },
-
-      removeAll() {
-        onClickedProp.deleteAllListenersFromExtension();
-
-        return context.childManager.callParentAsyncFunction("contextMenus.removeAll", []);
-      },
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-c-omnibox.js b/application/basilisk/components/webextensions/ext-c-omnibox.js
deleted file mode 100644
index 3b9b6e2f7..000000000
--- a/application/basilisk/components/webextensions/ext-c-omnibox.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-
-var {
-  runSafeSyncWithoutClone,
-  SingletonEventManager,
-} = ExtensionUtils;
-
-extensions.registerSchemaAPI("omnibox", "addon_child", context => {
-  return {
-    omnibox: {
-      onInputChanged: new SingletonEventManager(context, "omnibox.onInputChanged", fire => {
-        let listener = (text, id) => {
-          runSafeSyncWithoutClone(fire, text, suggestions => {
-            // TODO: Switch to using callParentFunctionNoReturn once bug 1314903 is fixed.
-            context.childManager.callParentAsyncFunction("omnibox_internal.addSuggestions", [
-              id,
-              suggestions,
-            ]);
-          });
-        };
-        context.childManager.getParentEvent("omnibox_internal.onInputChanged").addListener(listener);
-        return () => {
-          context.childManager.getParentEvent("omnibox_internal.onInputChanged").removeListener(listener);
-        };
-      }).api(),
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-c-tabs.js b/application/basilisk/components/webextensions/ext-c-tabs.js
deleted file mode 100644
index d5ce9fbf9..000000000
--- a/application/basilisk/components/webextensions/ext-c-tabs.js
+++ /dev/null
@@ -1,35 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-extensions.registerSchemaAPI("tabs", "addon_child", context => {
-  return {
-    tabs: {
-      connect: function(tabId, connectInfo) {
-        let name = "";
-        if (connectInfo && connectInfo.name !== null) {
-          name = connectInfo.name;
-        }
-        let recipient = {
-          extensionId: context.extension.id,
-          tabId,
-        };
-        if (connectInfo && connectInfo.frameId !== null) {
-          recipient.frameId = connectInfo.frameId;
-        }
-        return context.messenger.connect(context.messageManager, name, recipient);
-      },
-
-      sendMessage: function(tabId, message, options, responseCallback) {
-        let recipient = {
-          extensionId: context.extension.id,
-          tabId: tabId,
-        };
-        if (options && options.frameId !== null) {
-          recipient.frameId = options.frameId;
-        }
-        return context.messenger.sendMessage(context.messageManager, message, recipient, responseCallback);
-      },
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-commands.js b/application/basilisk/components/webextensions/ext-commands.js
deleted file mode 100644
index b6e7ab3d1..000000000
--- a/application/basilisk/components/webextensions/ext-commands.js
+++ /dev/null
@@ -1,264 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-Cu.import("resource://devtools/shared/event-emitter.js");
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-
-var {
-  EventManager,
-  PlatformInfo,
-} = ExtensionUtils;
-
-const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
-
-// WeakMap[Extension -> CommandList]
-var commandsMap = new WeakMap();
-
-function CommandList(manifest, extension) {
-  this.extension = extension;
-  this.id = makeWidgetId(extension.id);
-  this.windowOpenListener = null;
-
-  // Map[{String} commandName -> {Object} commandProperties]
-  this.commands = this.loadCommandsFromManifest(manifest);
-
-  // WeakMap[Window -> <xul:keyset>]
-  this.keysetsMap = new WeakMap();
-
-  this.register();
-  EventEmitter.decorate(this);
-}
-
-CommandList.prototype = {
-  /**
-   * Registers the commands to all open windows and to any which
-   * are later created.
-   */
-  register() {
-    for (let window of WindowListManager.browserWindows()) {
-      this.registerKeysToDocument(window);
-    }
-
-    this.windowOpenListener = (window) => {
-      if (!this.keysetsMap.has(window)) {
-        this.registerKeysToDocument(window);
-      }
-    };
-
-    WindowListManager.addOpenListener(this.windowOpenListener);
-  },
-
-  /**
-   * Unregisters the commands from all open windows and stops commands
-   * from being registered to windows which are later created.
-   */
-  unregister() {
-    for (let window of WindowListManager.browserWindows()) {
-      if (this.keysetsMap.has(window)) {
-        this.keysetsMap.get(window).remove();
-      }
-    }
-
-    WindowListManager.removeOpenListener(this.windowOpenListener);
-  },
-
-  /**
-   * Creates a Map from commands for each command in the manifest.commands object.
-   *
-   * @param {Object} manifest The manifest JSON object.
-   * @returns {Map<string, object>}
-   */
-  loadCommandsFromManifest(manifest) {
-    let commands = new Map();
-    // For Windows, chrome.runtime expects 'win' while chrome.commands
-    // expects 'windows'.  We can special case this for now.
-    let os = PlatformInfo.os == "win" ? "windows" : PlatformInfo.os;
-    for (let [name, command] of Object.entries(manifest.commands)) {
-      let suggested_key = command.suggested_key || {};
-      let shortcut = suggested_key[os] || suggested_key.default;
-      shortcut = shortcut ? shortcut.replace(/\s+/g, "") : null;
-      commands.set(name, {
-        description: command.description,
-        shortcut,
-      });
-    }
-    return commands;
-  },
-
-  /**
-   * Registers the commands to a document.
-   * @param {ChromeWindow} window The XUL window to insert the Keyset.
-   */
-  registerKeysToDocument(window) {
-    let doc = window.document;
-    let keyset = doc.createElementNS(XUL_NS, "keyset");
-    keyset.id = `ext-keyset-id-${this.id}`;
-    this.commands.forEach((command, name) => {
-      if (command.shortcut) {
-        let keyElement = this.buildKey(doc, name, command.shortcut);
-        keyset.appendChild(keyElement);
-      }
-    });
-    doc.documentElement.appendChild(keyset);
-    this.keysetsMap.set(window, keyset);
-  },
-
-  /**
-   * Builds a XUL Key element and attaches an onCommand listener which
-   * emits a command event with the provided name when fired.
-   *
-   * @param {Document} doc The XUL document.
-   * @param {string} name The name of the command.
-   * @param {string} shortcut The shortcut provided in the manifest.
-   * @see https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XUL/key
-   *
-   * @returns {Document} The newly created Key element.
-   */
-  buildKey(doc, name, shortcut) {
-    let keyElement = this.buildKeyFromShortcut(doc, shortcut);
-
-    // We need to have the attribute "oncommand" for the "command" listener to fire,
-    // and it is currently ignored when set to the empty string.
-    keyElement.setAttribute("oncommand", "//");
-
-    /* eslint-disable mozilla/balanced-listeners */
-    // We remove all references to the key elements when the extension is shutdown,
-    // therefore the listeners for these elements will be garbage collected.
-    keyElement.addEventListener("command", (event) => {
-      if (name == "_execute_page_action") {
-        let win = event.target.ownerDocument.defaultView;
-        pageActionFor(this.extension).triggerAction(win);
-      } else if (name == "_execute_browser_action") {
-        let win = event.target.ownerDocument.defaultView;
-        browserActionFor(this.extension).triggerAction(win);
-      } else {
-        TabManager.for(this.extension)
-                  .addActiveTabPermission(TabManager.activeTab);
-        this.emit("command", name);
-      }
-    });
-    /* eslint-enable mozilla/balanced-listeners */
-
-    return keyElement;
-  },
-
-  /**
-   * Builds a XUL Key element from the provided shortcut.
-   *
-   * @param {Document} doc The XUL document.
-   * @param {string} shortcut The shortcut provided in the manifest.
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XUL/key
-   * @returns {Document} The newly created Key element.
-   */
-  buildKeyFromShortcut(doc, shortcut) {
-    let keyElement = doc.createElementNS(XUL_NS, "key");
-
-    let parts = shortcut.split("+");
-
-    // The key is always the last element.
-    let chromeKey = parts.pop();
-
-    // The modifiers are the remaining elements.
-    keyElement.setAttribute("modifiers", this.getModifiersAttribute(parts));
-
-    if (/^[A-Z]$/.test(chromeKey)) {
-      // We use the key attribute for all single digits and characters.
-      keyElement.setAttribute("key", chromeKey);
-    } else {
-      keyElement.setAttribute("keycode", this.getKeycodeAttribute(chromeKey));
-      keyElement.setAttribute("event", "keydown");
-    }
-
-    return keyElement;
-  },
-
-  /**
-   * Determines the corresponding XUL keycode from the given chrome key.
-   *
-   * For example:
-   *
-   *    input     |  output
-   *    ---------------------------------------
-   *    "PageUP"  |  "VK_PAGE_UP"
-   *    "Delete"  |  "VK_DELETE"
-   *
-   * @param {string} chromeKey The chrome key (e.g. "PageUp", "Space", ...)
-   * @returns {string} The constructed value for the Key's 'keycode' attribute.
-   */
-  getKeycodeAttribute(chromeKey) {
-    if (/[0-9]/.test(chromeKey)) {
-      return `VK_${chromeKey}`;
-    }
-    return `VK${chromeKey.replace(/([A-Z])/g, "_$&").toUpperCase()}`;
-  },
-
-  /**
-   * Determines the corresponding XUL modifiers from the chrome modifiers.
-   *
-   * For example:
-   *
-   *    input             |   output
-   *    ---------------------------------------
-   *    ["Ctrl", "Shift"] |   "accel shift"
-   *    ["MacCtrl"]       |   "control"
-   *
-   * @param {Array} chromeModifiers The array of chrome modifiers.
-   * @returns {string} The constructed value for the Key's 'modifiers' attribute.
-   */
-  getModifiersAttribute(chromeModifiers) {
-    let modifiersMap = {
-      "Alt": "alt",
-      "Command": "accel",
-      "Ctrl": "accel",
-      "MacCtrl": "control",
-      "Shift": "shift",
-    };
-    return Array.from(chromeModifiers, modifier => {
-      return modifiersMap[modifier];
-    }).join(" ");
-  },
-};
-
-
-/* eslint-disable mozilla/balanced-listeners */
-extensions.on("manifest_commands", (type, directive, extension, manifest) => {
-  commandsMap.set(extension, new CommandList(manifest, extension));
-});
-
-extensions.on("shutdown", (type, extension) => {
-  let commandsList = commandsMap.get(extension);
-  if (commandsList) {
-    commandsList.unregister();
-    commandsMap.delete(extension);
-  }
-});
-/* eslint-enable mozilla/balanced-listeners */
-
-extensions.registerSchemaAPI("commands", "addon_parent", context => {
-  let {extension} = context;
-  return {
-    commands: {
-      getAll() {
-        let commands = commandsMap.get(extension).commands;
-        return Promise.resolve(Array.from(commands, ([name, command]) => {
-          return ({
-            name,
-            description: command.description,
-            shortcut: command.shortcut,
-          });
-        }));
-      },
-      onCommand: new EventManager(context, "commands.onCommand", fire => {
-        let listener = (eventName, commandName) => {
-          fire(commandName);
-        };
-        commandsMap.get(extension).on("command", listener);
-        return () => {
-          commandsMap.get(extension).off("command", listener);
-        };
-      }).api(),
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-contextMenus.js b/application/basilisk/components/webextensions/ext-contextMenus.js
deleted file mode 100644
index b3bf8aa53..000000000
--- a/application/basilisk/components/webextensions/ext-contextMenus.js
+++ /dev/null
@@ -1,537 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-Cu.import("resource://gre/modules/MatchPattern.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-
-var {
-  EventManager,
-  ExtensionError,
-  IconDetails,
-} = ExtensionUtils;
-
-// Map[Extension -> Map[ID -> MenuItem]]
-// Note: we want to enumerate all the menu items so
-// this cannot be a weak map.
-var gContextMenuMap = new Map();
-
-// Map[Extension -> MenuItem]
-var gRootItems = new Map();
-
-// If id is not specified for an item we use an integer.
-var gNextMenuItemID = 0;
-
-// Used to assign unique names to radio groups.
-var gNextRadioGroupID = 0;
-
-// The max length of a menu item's label.
-var gMaxLabelLength = 64;
-
-// When a new contextMenu is opened, this function is called and
-// we populate the |xulMenu| with all the items from extensions
-// to be displayed. We always clear all the items again when
-// popuphidden fires.
-var gMenuBuilder = {
-  build: function(contextData) {
-    let xulMenu = contextData.menu;
-    xulMenu.addEventListener("popuphidden", this);
-    this.xulMenu = xulMenu;
-    for (let [, root] of gRootItems) {
-      let rootElement = this.buildElementWithChildren(root, contextData);
-      if (!rootElement.firstChild || !rootElement.firstChild.childNodes.length) {
-        // If the root has no visible children, there is no reason to show
-        // the root menu item itself either.
-        continue;
-      }
-      rootElement.setAttribute("ext-type", "top-level-menu");
-      rootElement = this.removeTopLevelMenuIfNeeded(rootElement);
-
-      // Display the extension icon on the root element.
-      if (root.extension.manifest.icons) {
-        let parentWindow = contextData.menu.ownerGlobal;
-        let extension = root.extension;
-
-        let {icon} = IconDetails.getPreferredIcon(extension.manifest.icons, extension,
-                                                  16 * parentWindow.devicePixelRatio);
-
-        // The extension icons in the manifest are not pre-resolved, since
-        // they're sometimes used by the add-on manager when the extension is
-        // not enabled, and its URLs are not resolvable.
-        let resolvedURL = root.extension.baseURI.resolve(icon);
-
-        if (rootElement.localName == "menu") {
-          rootElement.setAttribute("class", "menu-iconic");
-        } else if (rootElement.localName == "menuitem") {
-          rootElement.setAttribute("class", "menuitem-iconic");
-        }
-        rootElement.setAttribute("image", resolvedURL);
-      }
-
-      xulMenu.appendChild(rootElement);
-      this.itemsToCleanUp.add(rootElement);
-    }
-  },
-
-  buildElementWithChildren(item, contextData) {
-    let element = this.buildSingleElement(item, contextData);
-    let groupName;
-    for (let child of item.children) {
-      if (child.type == "radio" && !child.groupName) {
-        if (!groupName) {
-          groupName = `webext-radio-group-${gNextRadioGroupID++}`;
-        }
-        child.groupName = groupName;
-      } else {
-        groupName = null;
-      }
-
-      if (child.enabledForContext(contextData)) {
-        let childElement = this.buildElementWithChildren(child, contextData);
-        // Here element must be a menu element and its first child
-        // is a menupopup, we have to append its children to this
-        // menupopup.
-        element.firstChild.appendChild(childElement);
-      }
-    }
-
-    return element;
-  },
-
-  removeTopLevelMenuIfNeeded(element) {
-    // If there is only one visible top level element we don't need the
-    // root menu element for the extension.
-    let menuPopup = element.firstChild;
-    if (menuPopup && menuPopup.childNodes.length == 1) {
-      let onlyChild = menuPopup.firstChild;
-      onlyChild.remove();
-      return onlyChild;
-    }
-
-    return element;
-  },
-
-  buildSingleElement(item, contextData) {
-    let doc = contextData.menu.ownerDocument;
-    let element;
-    if (item.children.length > 0) {
-      element = this.createMenuElement(doc, item);
-    } else if (item.type == "separator") {
-      element = doc.createElement("menuseparator");
-    } else {
-      element = doc.createElement("menuitem");
-    }
-
-    return this.customizeElement(element, item, contextData);
-  },
-
-  createMenuElement(doc, item) {
-    let element = doc.createElement("menu");
-    // Menu elements need to have a menupopup child for its menu items.
-    let menupopup = doc.createElement("menupopup");
-    element.appendChild(menupopup);
-    return element;
-  },
-
-  customizeElement(element, item, contextData) {
-    let label = item.title;
-    if (label) {
-      if (contextData.isTextSelected && label.indexOf("%s") > -1) {
-        let selection = contextData.selectionText;
-        // The rendering engine will truncate the title if it's longer than 64 characters.
-        // But if it makes sense let's try truncate selection text only, to handle cases like
-        // 'look up "%s" in MyDictionary' more elegantly.
-        let maxSelectionLength = gMaxLabelLength - label.length + 2;
-        if (maxSelectionLength > 4) {
-          selection = selection.substring(0, maxSelectionLength - 3) + "...";
-        }
-        label = label.replace(/%s/g, selection);
-      }
-
-      element.setAttribute("label", label);
-    }
-
-    if (item.type == "checkbox") {
-      element.setAttribute("type", "checkbox");
-      if (item.checked) {
-        element.setAttribute("checked", "true");
-      }
-    } else if (item.type == "radio") {
-      element.setAttribute("type", "radio");
-      element.setAttribute("name", item.groupName);
-      if (item.checked) {
-        element.setAttribute("checked", "true");
-      }
-    }
-
-    if (!item.enabled) {
-      element.setAttribute("disabled", "true");
-    }
-
-    element.addEventListener("command", event => {  // eslint-disable-line mozilla/balanced-listeners
-      if (event.target !== event.currentTarget) {
-        return;
-      }
-      const wasChecked = item.checked;
-      if (item.type == "checkbox") {
-        item.checked = !item.checked;
-      } else if (item.type == "radio") {
-        // Deselect all radio items in the current radio group.
-        for (let child of item.parent.children) {
-          if (child.type == "radio" && child.groupName == item.groupName) {
-            child.checked = false;
-          }
-        }
-        // Select the clicked radio item.
-        item.checked = true;
-      }
-
-      item.tabManager.addActiveTabPermission();
-
-      let tab = item.tabManager.convert(contextData.tab);
-      let info = item.getClickInfo(contextData, wasChecked);
-      item.extension.emit("webext-contextmenu-menuitem-click", info, tab);
-    });
-
-    return element;
-  },
-
-  handleEvent: function(event) {
-    if (this.xulMenu != event.target || event.type != "popuphidden") {
-      return;
-    }
-
-    delete this.xulMenu;
-    let target = event.target;
-    target.removeEventListener("popuphidden", this);
-    for (let item of this.itemsToCleanUp) {
-      item.remove();
-    }
-    this.itemsToCleanUp.clear();
-  },
-
-  itemsToCleanUp: new Set(),
-};
-
-function contextMenuObserver(subject, topic, data) {
-  subject = subject.wrappedJSObject;
-  gMenuBuilder.build(subject);
-}
-
-function getContexts(contextData) {
-  let contexts = new Set(["all"]);
-
-  if (contextData.inFrame) {
-    contexts.add("frame");
-  }
-
-  if (contextData.isTextSelected) {
-    contexts.add("selection");
-  }
-
-  if (contextData.onLink) {
-    contexts.add("link");
-  }
-
-  if (contextData.onEditableArea) {
-    contexts.add("editable");
-  }
-
-  if (contextData.onImage) {
-    contexts.add("image");
-  }
-
-  if (contextData.onVideo) {
-    contexts.add("video");
-  }
-
-  if (contextData.onAudio) {
-    contexts.add("audio");
-  }
-
-  if (contexts.size == 1) {
-    contexts.add("page");
-  }
-
-  return contexts;
-}
-
-function MenuItem(extension, createProperties, isRoot = false) {
-  this.extension = extension;
-  this.children = [];
-  this.parent = null;
-  this.tabManager = TabManager.for(extension);
-
-  this.setDefaults();
-  this.setProps(createProperties);
-  if (!this.hasOwnProperty("_id")) {
-    this.id = gNextMenuItemID++;
-  }
-  // If the item is not the root and has no parent
-  // it must be a child of the root.
-  if (!isRoot && !this.parent) {
-    this.root.addChild(this);
-  }
-}
-
-MenuItem.prototype = {
-  setProps(createProperties) {
-    for (let propName in createProperties) {
-      if (createProperties[propName] === null) {
-        // Omitted optional argument.
-        continue;
-      }
-      this[propName] = createProperties[propName];
-    }
-
-    if (createProperties.documentUrlPatterns != null) {
-      this.documentUrlMatchPattern = new MatchPattern(this.documentUrlPatterns);
-    }
-
-    if (createProperties.targetUrlPatterns != null) {
-      this.targetUrlMatchPattern = new MatchPattern(this.targetUrlPatterns);
-    }
-  },
-
-  setDefaults() {
-    this.setProps({
-      type: "normal",
-      checked: false,
-      contexts: ["all"],
-      enabled: true,
-    });
-  },
-
-  set id(id) {
-    if (this.hasOwnProperty("_id")) {
-      throw new Error("Id of a MenuItem cannot be changed");
-    }
-    let isIdUsed = gContextMenuMap.get(this.extension).has(id);
-    if (isIdUsed) {
-      throw new Error("Id already exists");
-    }
-    this._id = id;
-  },
-
-  get id() {
-    return this._id;
-  },
-
-  ensureValidParentId(parentId) {
-    if (parentId === undefined) {
-      return;
-    }
-    let menuMap = gContextMenuMap.get(this.extension);
-    if (!menuMap.has(parentId)) {
-      throw new Error("Could not find any MenuItem with id: " + parentId);
-    }
-    for (let item = menuMap.get(parentId); item; item = item.parent) {
-      if (item === this) {
-        throw new ExtensionError("MenuItem cannot be an ancestor (or self) of its new parent.");
-      }
-    }
-  },
-
-  set parentId(parentId) {
-    this.ensureValidParentId(parentId);
-
-    if (this.parent) {
-      this.parent.detachChild(this);
-    }
-
-    if (parentId === undefined) {
-      this.root.addChild(this);
-    } else {
-      let menuMap = gContextMenuMap.get(this.extension);
-      menuMap.get(parentId).addChild(this);
-    }
-  },
-
-  get parentId() {
-    return this.parent ? this.parent.id : undefined;
-  },
-
-  addChild(child) {
-    if (child.parent) {
-      throw new Error("Child MenuItem already has a parent.");
-    }
-    this.children.push(child);
-    child.parent = this;
-  },
-
-  detachChild(child) {
-    let idx = this.children.indexOf(child);
-    if (idx < 0) {
-      throw new Error("Child MenuItem not found, it cannot be removed.");
-    }
-    this.children.splice(idx, 1);
-    child.parent = null;
-  },
-
-  get root() {
-    let extension = this.extension;
-    if (!gRootItems.has(extension)) {
-      let root = new MenuItem(extension,
-                              {title: extension.name},
-                              /* isRoot = */ true);
-      gRootItems.set(extension, root);
-    }
-
-    return gRootItems.get(extension);
-  },
-
-  remove() {
-    if (this.parent) {
-      this.parent.detachChild(this);
-    }
-    let children = this.children.slice(0);
-    for (let child of children) {
-      child.remove();
-    }
-
-    let menuMap = gContextMenuMap.get(this.extension);
-    menuMap.delete(this.id);
-    if (this.root == this) {
-      gRootItems.delete(this.extension);
-    }
-  },
-
-  getClickInfo(contextData, wasChecked) {
-    let mediaType;
-    if (contextData.onVideo) {
-      mediaType = "video";
-    }
-    if (contextData.onAudio) {
-      mediaType = "audio";
-    }
-    if (contextData.onImage) {
-      mediaType = "image";
-    }
-
-    let info = {
-      menuItemId: this.id,
-      editable: contextData.onEditableArea,
-    };
-
-    function setIfDefined(argName, value) {
-      if (value !== undefined) {
-        info[argName] = value;
-      }
-    }
-
-    setIfDefined("parentMenuItemId", this.parentId);
-    setIfDefined("mediaType", mediaType);
-    setIfDefined("linkUrl", contextData.linkUrl);
-    setIfDefined("srcUrl", contextData.srcUrl);
-    setIfDefined("pageUrl", contextData.pageUrl);
-    setIfDefined("frameUrl", contextData.frameUrl);
-    setIfDefined("selectionText", contextData.selectionText);
-
-    if ((this.type === "checkbox") || (this.type === "radio")) {
-      info.checked = this.checked;
-      info.wasChecked = wasChecked;
-    }
-
-    return info;
-  },
-
-  enabledForContext(contextData) {
-    let contexts = getContexts(contextData);
-    if (!this.contexts.some(n => contexts.has(n))) {
-      return false;
-    }
-
-    let docPattern = this.documentUrlMatchPattern;
-    let pageURI = Services.io.newURI(contextData.pageUrl, null, null);
-    if (docPattern && !docPattern.matches(pageURI)) {
-      return false;
-    }
-
-    let targetPattern = this.targetUrlMatchPattern;
-    if (targetPattern) {
-      let targetUrls = [];
-      if (contextData.onImage || contextData.onAudio || contextData.onVideo) {
-        // TODO: double check if srcUrl is always set when we need it
-        targetUrls.push(contextData.srcUrl);
-      }
-      if (contextData.onLink) {
-        targetUrls.push(contextData.linkUrl);
-      }
-      if (!targetUrls.some(targetUrl => targetPattern.matches(NetUtil.newURI(targetUrl)))) {
-        return false;
-      }
-    }
-
-    return true;
-  },
-};
-
-var gExtensionCount = 0;
-/* eslint-disable mozilla/balanced-listeners */
-extensions.on("startup", (type, extension) => {
-  gContextMenuMap.set(extension, new Map());
-  if (++gExtensionCount == 1) {
-    Services.obs.addObserver(contextMenuObserver,
-                             "on-build-contextmenu",
-                             false);
-  }
-});
-
-extensions.on("shutdown", (type, extension) => {
-  gContextMenuMap.delete(extension);
-  gRootItems.delete(extension);
-  if (--gExtensionCount == 0) {
-    Services.obs.removeObserver(contextMenuObserver,
-                                "on-build-contextmenu");
-  }
-});
-/* eslint-enable mozilla/balanced-listeners */
-
-extensions.registerSchemaAPI("contextMenus", "addon_parent", context => {
-  let {extension} = context;
-  return {
-    contextMenus: {
-      createInternal: function(createProperties) {
-        // Note that the id is required by the schema. If the addon did not set
-        // it, the implementation of contextMenus.create in the child should
-        // have added it.
-        let menuItem = new MenuItem(extension, createProperties);
-        gContextMenuMap.get(extension).set(menuItem.id, menuItem);
-      },
-
-      update: function(id, updateProperties) {
-        let menuItem = gContextMenuMap.get(extension).get(id);
-        if (menuItem) {
-          menuItem.setProps(updateProperties);
-        }
-      },
-
-      remove: function(id) {
-        let menuItem = gContextMenuMap.get(extension).get(id);
-        if (menuItem) {
-          menuItem.remove();
-        }
-      },
-
-      removeAll: function() {
-        let root = gRootItems.get(extension);
-        if (root) {
-          root.remove();
-        }
-      },
-
-      onClicked: new EventManager(context, "contextMenus.onClicked", fire => {
-        let listener = (event, info, tab) => {
-          fire(info, tab);
-        };
-
-        extension.on("webext-contextmenu-menuitem-click", listener);
-        return () => {
-          extension.off("webext-contextmenu-menuitem-click", listener);
-        };
-      }).api(),
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-desktop-runtime.js b/application/basilisk/components/webextensions/ext-desktop-runtime.js
deleted file mode 100644
index 0fdb45562..000000000
--- a/application/basilisk/components/webextensions/ext-desktop-runtime.js
+++ /dev/null
@@ -1,26 +0,0 @@
-"use strict";
-
-/* eslint-disable mozilla/balanced-listeners */
-extensions.on("uninstall", (msg, extension) => {
-  if (extension.uninstallURL) {
-    let browser = WindowManager.topWindow.gBrowser;
-    browser.addTab(extension.uninstallURL, {relatedToCurrent: true});
-  }
-});
-
-global.openOptionsPage = (extension) => {
-  let window = WindowManager.topWindow;
-  if (!window) {
-    return Promise.reject({message: "No browser window available"});
-  }
-
-  if (extension.manifest.options_ui.open_in_tab) {
-    window.switchToTabHavingURI(extension.manifest.options_ui.page, true);
-    return Promise.resolve();
-  }
-
-  let viewId = `addons://detail/${encodeURIComponent(extension.id)}/preferences`;
-
-  return window.BrowserOpenAddonsMgr(viewId);
-};
-
diff --git a/application/basilisk/components/webextensions/ext-history.js b/application/basilisk/components/webextensions/ext-history.js
deleted file mode 100644
index a47df1621..000000000
--- a/application/basilisk/components/webextensions/ext-history.js
+++ /dev/null
@@ -1,246 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
-
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "EventEmitter",
-                                  "resource://devtools/shared/event-emitter.js");
-XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
-                                  "resource://gre/modules/NetUtil.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
-                                  "resource://gre/modules/PlacesUtils.jsm");
-
-const {
-  normalizeTime,
-  SingletonEventManager,
-} = ExtensionUtils;
-
-let nsINavHistoryService = Ci.nsINavHistoryService;
-const TRANSITION_TO_TRANSITION_TYPES_MAP = new Map([
-  ["link", nsINavHistoryService.TRANSITION_LINK],
-  ["typed", nsINavHistoryService.TRANSITION_TYPED],
-  ["auto_bookmark", nsINavHistoryService.TRANSITION_BOOKMARK],
-  ["auto_subframe", nsINavHistoryService.TRANSITION_EMBED],
-  ["manual_subframe", nsINavHistoryService.TRANSITION_FRAMED_LINK],
-]);
-
-let TRANSITION_TYPE_TO_TRANSITIONS_MAP = new Map();
-for (let [transition, transitionType] of TRANSITION_TO_TRANSITION_TYPES_MAP) {
-  TRANSITION_TYPE_TO_TRANSITIONS_MAP.set(transitionType, transition);
-}
-
-function getTransitionType(transition) {
-  // cannot set a default value for the transition argument as the framework sets it to null
-  transition = transition || "link";
-  let transitionType = TRANSITION_TO_TRANSITION_TYPES_MAP.get(transition);
-  if (!transitionType) {
-    throw new Error(`|${transition}| is not a supported transition for history`);
-  }
-  return transitionType;
-}
-
-function getTransition(transitionType) {
-  return TRANSITION_TYPE_TO_TRANSITIONS_MAP.get(transitionType) || "link";
-}
-
-/*
- * Converts a nsINavHistoryResultNode into a HistoryItem
- *
- * https://developer.mozilla.org/en-US/docs/XPCOM_Interface_Reference/nsINavHistoryResultNode
- */
-function convertNodeToHistoryItem(node) {
-  return {
-    id: node.pageGuid,
-    url: node.uri,
-    title: node.title,
-    lastVisitTime: PlacesUtils.toDate(node.time).getTime(),
-    visitCount: node.accessCount,
-  };
-}
-
-/*
- * Converts a nsINavHistoryResultNode into a VisitItem
- *
- * https://developer.mozilla.org/en-US/docs/XPCOM_Interface_Reference/nsINavHistoryResultNode
- */
-function convertNodeToVisitItem(node) {
-  return {
-    id: node.pageGuid,
-    visitId: node.visitId,
-    visitTime: PlacesUtils.toDate(node.time).getTime(),
-    referringVisitId: node.fromVisitId,
-    transition: getTransition(node.visitType),
-  };
-}
-
-/*
- * Converts a nsINavHistoryContainerResultNode into an array of objects
- *
- * https://developer.mozilla.org/en-US/docs/XPCOM_Interface_Reference/nsINavHistoryContainerResultNode
- */
-function convertNavHistoryContainerResultNode(container, converter) {
-  let results = [];
-  container.containerOpen = true;
-  for (let i = 0; i < container.childCount; i++) {
-    let node = container.getChild(i);
-    results.push(converter(node));
-  }
-  container.containerOpen = false;
-  return results;
-}
-
-var _observer;
-
-function getObserver() {
-  if (!_observer) {
-    _observer = {
-      onDeleteURI: function(uri, guid, reason) {
-        this.emit("visitRemoved", {allHistory: false, urls: [uri.spec]});
-      },
-      onVisit: function(uri, visitId, time, sessionId, referringId, transitionType, guid, hidden, visitCount, typed) {
-        let data = {
-          id: guid,
-          url: uri.spec,
-          title: "",
-          lastVisitTime: time / 1000,  // time from Places is microseconds,
-          visitCount,
-          typedCount: typed,
-        };
-        this.emit("visited", data);
-      },
-      onBeginUpdateBatch: function() {},
-      onEndUpdateBatch: function() {},
-      onTitleChanged: function() {},
-      onClearHistory: function() {
-        this.emit("visitRemoved", {allHistory: true, urls: []});
-      },
-      onPageChanged: function() {},
-      onFrecencyChanged: function() {},
-      onManyFrecenciesChanged: function() {},
-      onDeleteVisits: function(uri, time, guid, reason) {
-        this.emit("visitRemoved", {allHistory: false, urls: [uri.spec]});
-      },
-    };
-    EventEmitter.decorate(_observer);
-    PlacesUtils.history.addObserver(_observer, false);
-  }
-  return _observer;
-}
-
-extensions.registerSchemaAPI("history", "addon_parent", context => {
-  return {
-    history: {
-      addUrl: function(details) {
-        let transition, date;
-        try {
-          transition = getTransitionType(details.transition);
-        } catch (error) {
-          return Promise.reject({message: error.message});
-        }
-        if (details.visitTime) {
-          date = normalizeTime(details.visitTime);
-        }
-        let pageInfo = {
-          title: details.title,
-          url: details.url,
-          visits: [
-            {
-              transition,
-              date,
-            },
-          ],
-        };
-        try {
-          return PlacesUtils.history.insert(pageInfo).then(() => undefined);
-        } catch (error) {
-          return Promise.reject({message: error.message});
-        }
-      },
-
-      deleteAll: function() {
-        return PlacesUtils.history.clear();
-      },
-
-      deleteRange: function(filter) {
-        let newFilter = {
-          beginDate: normalizeTime(filter.startTime),
-          endDate: normalizeTime(filter.endTime),
-        };
-        // History.removeVisitsByFilter returns a boolean, but our API should return nothing
-        return PlacesUtils.history.removeVisitsByFilter(newFilter).then(() => undefined);
-      },
-
-      deleteUrl: function(details) {
-        let url = details.url;
-        // History.remove returns a boolean, but our API should return nothing
-        return PlacesUtils.history.remove(url).then(() => undefined);
-      },
-
-      search: function(query) {
-        let beginTime = (query.startTime == null) ?
-                          PlacesUtils.toPRTime(Date.now() - 24 * 60 * 60 * 1000) :
-                          PlacesUtils.toPRTime(normalizeTime(query.startTime));
-        let endTime = (query.endTime == null) ?
-                        Number.MAX_VALUE :
-                        PlacesUtils.toPRTime(normalizeTime(query.endTime));
-        if (beginTime > endTime) {
-          return Promise.reject({message: "The startTime cannot be after the endTime"});
-        }
-
-        let options = PlacesUtils.history.getNewQueryOptions();
-        options.sortingMode = options.SORT_BY_DATE_DESCENDING;
-        options.maxResults = query.maxResults || 100;
-
-        let historyQuery = PlacesUtils.history.getNewQuery();
-        historyQuery.searchTerms = query.text;
-        historyQuery.beginTime = beginTime;
-        historyQuery.endTime = endTime;
-        let queryResult = PlacesUtils.history.executeQuery(historyQuery, options).root;
-        let results = convertNavHistoryContainerResultNode(queryResult, convertNodeToHistoryItem);
-        return Promise.resolve(results);
-      },
-
-      getVisits: function(details) {
-        let url = details.url;
-        if (!url) {
-          return Promise.reject({message: "A URL must be provided for getVisits"});
-        }
-
-        let options = PlacesUtils.history.getNewQueryOptions();
-        options.sortingMode = options.SORT_BY_DATE_DESCENDING;
-        options.resultType = options.RESULTS_AS_VISIT;
-
-        let historyQuery = PlacesUtils.history.getNewQuery();
-        historyQuery.uri = NetUtil.newURI(url);
-        let queryResult = PlacesUtils.history.executeQuery(historyQuery, options).root;
-        let results = convertNavHistoryContainerResultNode(queryResult, convertNodeToVisitItem);
-        return Promise.resolve(results);
-      },
-
-      onVisited: new SingletonEventManager(context, "history.onVisited", fire => {
-        let listener = (event, data) => {
-          context.runSafe(fire, data);
-        };
-
-        getObserver().on("visited", listener);
-        return () => {
-          getObserver().off("visited", listener);
-        };
-      }).api(),
-
-      onVisitRemoved: new SingletonEventManager(context, "history.onVisitRemoved", fire => {
-        let listener = (event, data) => {
-          context.runSafe(fire, data);
-        };
-
-        getObserver().on("visitRemoved", listener);
-        return () => {
-          getObserver().off("visitRemoved", listener);
-        };
-      }).api(),
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-omnibox.js b/application/basilisk/components/webextensions/ext-omnibox.js
deleted file mode 100644
index 9b2f60ca4..000000000
--- a/application/basilisk/components/webextensions/ext-omnibox.js
+++ /dev/null
@@ -1,104 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "ExtensionSearchHandler",
-                                  "resource://gre/modules/ExtensionSearchHandler.jsm");
-var {
-  SingletonEventManager,
-} = ExtensionUtils;
-
-// WeakMap[extension -> keyword]
-let gKeywordMap = new WeakMap();
-
-/* eslint-disable mozilla/balanced-listeners */
-extensions.on("manifest_omnibox", (type, directive, extension, manifest) => {
-  let keyword = manifest.omnibox.keyword;
-  try {
-    // This will throw if the keyword is already registered.
-    ExtensionSearchHandler.registerKeyword(keyword, extension);
-    gKeywordMap.set(extension, keyword);
-  } catch (e) {
-    extension.manifestError(e.message);
-  }
-});
-
-extensions.on("shutdown", (type, extension) => {
-  let keyword = gKeywordMap.get(extension);
-  if (keyword) {
-    ExtensionSearchHandler.unregisterKeyword(keyword);
-    gKeywordMap.delete(extension);
-  }
-});
-/* eslint-enable mozilla/balanced-listeners */
-
-extensions.registerSchemaAPI("omnibox", "addon_parent", context => {
-  let {extension} = context;
-  return {
-    omnibox: {
-      setDefaultSuggestion(suggestion) {
-        let keyword = gKeywordMap.get(extension);
-        try {
-          // This will throw if the keyword failed to register.
-          ExtensionSearchHandler.setDefaultSuggestion(keyword, suggestion);
-        } catch (e) {
-          return Promise.reject(e.message);
-        }
-      },
-
-      onInputStarted: new SingletonEventManager(context, "omnibox.onInputStarted", fire => {
-        let listener = (eventName) => {
-          fire();
-        };
-        extension.on(ExtensionSearchHandler.MSG_INPUT_STARTED, listener);
-        return () => {
-          extension.off(ExtensionSearchHandler.MSG_INPUT_STARTED, listener);
-        };
-      }).api(),
-
-      onInputCancelled: new SingletonEventManager(context, "omnibox.onInputCancelled", fire => {
-        let listener = (eventName) => {
-          fire();
-        };
-        extension.on(ExtensionSearchHandler.MSG_INPUT_CANCELLED, listener);
-        return () => {
-          extension.off(ExtensionSearchHandler.MSG_INPUT_CANCELLED, listener);
-        };
-      }).api(),
-
-      onInputEntered: new SingletonEventManager(context, "omnibox.onInputEntered", fire => {
-        let listener = (eventName, text, disposition) => {
-          fire(text, disposition);
-        };
-        extension.on(ExtensionSearchHandler.MSG_INPUT_ENTERED, listener);
-        return () => {
-          extension.off(ExtensionSearchHandler.MSG_INPUT_ENTERED, listener);
-        };
-      }).api(),
-    },
-
-    omnibox_internal: {
-      addSuggestions(id, suggestions) {
-        let keyword = gKeywordMap.get(extension);
-        try {
-          ExtensionSearchHandler.addSuggestions(keyword, id, suggestions);
-        } catch (e) {
-          // Silently fail because the extension developer can not know for sure if the user
-          // has already invalidated the callback when asynchronously providing suggestions.
-        }
-      },
-
-      onInputChanged: new SingletonEventManager(context, "omnibox_internal.onInputChanged", fire => {
-        let listener = (eventName, text, id) => {
-          fire(text, id);
-        };
-        extension.on(ExtensionSearchHandler.MSG_INPUT_CHANGED, listener);
-        return () => {
-          extension.off(ExtensionSearchHandler.MSG_INPUT_CHANGED, listener);
-        };
-      }).api(),
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-pageAction.js b/application/basilisk/components/webextensions/ext-pageAction.js
deleted file mode 100644
index 5bf3a9c70..000000000
--- a/application/basilisk/components/webextensions/ext-pageAction.js
+++ /dev/null
@@ -1,290 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-Cu.import("resource://gre/modules/Task.jsm");
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-var {
-  EventManager,
-  IconDetails,
-} = ExtensionUtils;
-
-// WeakMap[Extension -> PageAction]
-var pageActionMap = new WeakMap();
-
-// Handles URL bar icons, including the |page_action| manifest entry
-// and associated API.
-function PageAction(options, extension) {
-  this.extension = extension;
-  this.id = makeWidgetId(extension.id) + "-page-action";
-
-  this.tabManager = TabManager.for(extension);
-
-  this.defaults = {
-    show: false,
-    title: options.default_title || extension.name,
-    icon: IconDetails.normalize({path: options.default_icon}, extension),
-    popup: options.default_popup || "",
-  };
-
-  this.browserStyle = options.browser_style || false;
-  if (options.browser_style === null) {
-    this.extension.logger.warn("Please specify whether you want browser_style " +
-                               "or not in your page_action options.");
-  }
-
-  this.tabContext = new TabContext(tab => Object.create(this.defaults),
-                                   extension);
-
-  this.tabContext.on("location-change", this.handleLocationChange.bind(this)); // eslint-disable-line mozilla/balanced-listeners
-
-  // WeakMap[ChromeWindow -> <xul:image>]
-  this.buttons = new WeakMap();
-
-  EventEmitter.decorate(this);
-}
-
-PageAction.prototype = {
-  // Returns the value of the property |prop| for the given tab, where
-  // |prop| is one of "show", "title", "icon", "popup".
-  getProperty(tab, prop) {
-    return this.tabContext.get(tab)[prop];
-  },
-
-  // Sets the value of the property |prop| for the given tab to the
-  // given value, symmetrically to |getProperty|.
-  //
-  // If |tab| is currently selected, updates the page action button to
-  // reflect the new value.
-  setProperty(tab, prop, value) {
-    if (value != null) {
-      this.tabContext.get(tab)[prop] = value;
-    } else {
-      delete this.tabContext.get(tab)[prop];
-    }
-
-    if (tab.selected) {
-      this.updateButton(tab.ownerGlobal);
-    }
-  },
-
-  // Updates the page action button in the given window to reflect the
-  // properties of the currently selected tab:
-  //
-  // Updates "tooltiptext" and "aria-label" to match "title" property.
-  // Updates "image" to match the "icon" property.
-  // Shows or hides the icon, based on the "show" property.
-  updateButton(window) {
-    let tabData = this.tabContext.get(window.gBrowser.selectedTab);
-
-    if (!(tabData.show || this.buttons.has(window))) {
-      // Don't bother creating a button for a window until it actually
-      // needs to be shown.
-      return;
-    }
-
-    let button = this.getButton(window);
-
-    if (tabData.show) {
-      // Update the title and icon only if the button is visible.
-
-      let title = tabData.title || this.extension.name;
-      button.setAttribute("tooltiptext", title);
-      button.setAttribute("aria-label", title);
-
-      // These URLs should already be properly escaped, but make doubly sure CSS
-      // string escape characters are escaped here, since they could lead to a
-      // sandbox break.
-      let escape = str => str.replace(/[\\\s"]/g, encodeURIComponent);
-
-      let getIcon = size => escape(IconDetails.getPreferredIcon(tabData.icon, this.extension, size).icon);
-
-      button.setAttribute("style", `
-        --webextension-urlbar-image: url("${getIcon(16)}");
-        --webextension-urlbar-image-2x: url("${getIcon(32)}");
-      `);
-
-      button.classList.add("webextension-page-action");
-    }
-
-    button.hidden = !tabData.show;
-  },
-
-  // Create an |image| node and add it to the |urlbar-icons|
-  // container in the given window.
-  addButton(window) {
-    let document = window.document;
-
-    let button = document.createElement("image");
-    button.id = this.id;
-    button.setAttribute("class", "urlbar-icon");
-
-    button.addEventListener("click", event => { // eslint-disable-line mozilla/balanced-listeners
-      if (event.button == 0) {
-        this.handleClick(window);
-      }
-    });
-
-    document.getElementById("urlbar-icons").appendChild(button);
-
-    return button;
-  },
-
-  // Returns the page action button for the given window, creating it if
-  // it doesn't already exist.
-  getButton(window) {
-    if (!this.buttons.has(window)) {
-      let button = this.addButton(window);
-      this.buttons.set(window, button);
-    }
-
-    return this.buttons.get(window);
-  },
-
-  /**
-   * Triggers this page action for the given window, with the same effects as
-   * if it were clicked by a user.
-   *
-   * This has no effect if the page action is hidden for the selected tab.
-   *
-   * @param {Window} window
-   */
-  triggerAction(window) {
-    let pageAction = pageActionMap.get(this.extension);
-    if (pageAction.getProperty(window.gBrowser.selectedTab, "show")) {
-      pageAction.handleClick(window);
-    }
-  },
-
-  // Handles a click event on the page action button for the given
-  // window.
-  // If the page action has a |popup| property, a panel is opened to
-  // that URL. Otherwise, a "click" event is emitted, and dispatched to
-  // the any click listeners in the add-on.
-  handleClick(window) {
-    let tab = window.gBrowser.selectedTab;
-    let popupURL = this.tabContext.get(tab).popup;
-
-    this.tabManager.addActiveTabPermission(tab);
-
-    // If the widget has a popup URL defined, we open a popup, but do not
-    // dispatch a click event to the extension.
-    // If it has no popup URL defined, we dispatch a click event, but do not
-    // open a popup.
-    if (popupURL) {
-      new PanelPopup(this.extension, this.getButton(window), popupURL,
-                     this.browserStyle);
-    } else {
-      this.emit("click", tab);
-    }
-  },
-
-  handleLocationChange(eventType, tab, fromBrowse) {
-    if (fromBrowse) {
-      this.tabContext.clear(tab);
-    }
-    this.updateButton(tab.ownerGlobal);
-  },
-
-  shutdown() {
-    this.tabContext.shutdown();
-
-    for (let window of WindowListManager.browserWindows()) {
-      if (this.buttons.has(window)) {
-        this.buttons.get(window).remove();
-      }
-    }
-  },
-};
-
-/* eslint-disable mozilla/balanced-listeners */
-extensions.on("manifest_page_action", (type, directive, extension, manifest) => {
-  let pageAction = new PageAction(manifest.page_action, extension);
-  pageActionMap.set(extension, pageAction);
-});
-
-extensions.on("shutdown", (type, extension) => {
-  if (pageActionMap.has(extension)) {
-    pageActionMap.get(extension).shutdown();
-    pageActionMap.delete(extension);
-  }
-});
-/* eslint-enable mozilla/balanced-listeners */
-
-PageAction.for = extension => {
-  return pageActionMap.get(extension);
-};
-
-global.pageActionFor = PageAction.for;
-
-extensions.registerSchemaAPI("pageAction", "addon_parent", context => {
-  let {extension} = context;
-  return {
-    pageAction: {
-      onClicked: new EventManager(context, "pageAction.onClicked", fire => {
-        let listener = (evt, tab) => {
-          fire(TabManager.convert(extension, tab));
-        };
-        let pageAction = PageAction.for(extension);
-
-        pageAction.on("click", listener);
-        return () => {
-          pageAction.off("click", listener);
-        };
-      }).api(),
-
-      show(tabId) {
-        let tab = TabManager.getTab(tabId, context);
-        PageAction.for(extension).setProperty(tab, "show", true);
-      },
-
-      hide(tabId) {
-        let tab = TabManager.getTab(tabId, context);
-        PageAction.for(extension).setProperty(tab, "show", false);
-      },
-
-      setTitle(details) {
-        let tab = TabManager.getTab(details.tabId, context);
-
-        // Clear the tab-specific title when given a null string.
-        PageAction.for(extension).setProperty(tab, "title", details.title || null);
-      },
-
-      getTitle(details) {
-        let tab = TabManager.getTab(details.tabId, context);
-
-        let title = PageAction.for(extension).getProperty(tab, "title");
-        return Promise.resolve(title);
-      },
-
-      setIcon(details) {
-        let tab = TabManager.getTab(details.tabId, context);
-
-        let icon = IconDetails.normalize(details, extension, context);
-        PageAction.for(extension).setProperty(tab, "icon", icon);
-      },
-
-      setPopup(details) {
-        let tab = TabManager.getTab(details.tabId, context);
-
-        // Note: Chrome resolves arguments to setIcon relative to the calling
-        // context, but resolves arguments to setPopup relative to the extension
-        // root.
-        // For internal consistency, we currently resolve both relative to the
-        // calling context.
-        let url = details.popup && context.uri.resolve(details.popup);
-        if (url && !context.checkLoadURL(url)) {
-          return Promise.reject({message: `Access denied for URL ${url}`});
-        }
-        PageAction.for(extension).setProperty(tab, "popup", url);
-      },
-
-      getPopup(details) {
-        let tab = TabManager.getTab(details.tabId, context);
-
-        let popup = PageAction.for(extension).getProperty(tab, "popup");
-        return Promise.resolve(popup);
-      },
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-sessions.js b/application/basilisk/components/webextensions/ext-sessions.js
deleted file mode 100644
index 4c13a1ac3..000000000
--- a/application/basilisk/components/webextensions/ext-sessions.js
+++ /dev/null
@@ -1,92 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-var {
-  promiseObserved,
-} = ExtensionUtils;
-
-XPCOMUtils.defineLazyModuleGetter(this, "SessionStore",
-                                  "resource:///modules/sessionstore/SessionStore.jsm");
-
-function getRecentlyClosed(maxResults, extension) {
-  let recentlyClosed = [];
-
-  // Get closed windows
-  let closedWindowData = SessionStore.getClosedWindowData(false);
-  for (let window of closedWindowData) {
-    recentlyClosed.push({
-      lastModified: window.closedAt,
-      window: WindowManager.convertFromSessionStoreClosedData(window, extension)});
-  }
-
-  // Get closed tabs
-  for (let window of WindowListManager.browserWindows()) {
-    let closedTabData = SessionStore.getClosedTabData(window, false);
-    for (let tab of closedTabData) {
-      recentlyClosed.push({
-        lastModified: tab.closedAt,
-        tab: TabManager.for(extension).convertFromSessionStoreClosedData(tab, window)});
-    }
-  }
-
-  // Sort windows and tabs
-  recentlyClosed.sort((a, b) => b.lastModified - a.lastModified);
-  return recentlyClosed.slice(0, maxResults);
-}
-
-function createSession(restored, extension, sessionId) {
-  if (!restored) {
-    return Promise.reject({message: `Could not restore object using sessionId ${sessionId}.`});
-  }
-  let sessionObj = {lastModified: Date.now()};
-  if (restored instanceof Ci.nsIDOMChromeWindow) {
-    return promiseObserved("sessionstore-single-window-restored", subject => subject == restored).then(() => {
-      sessionObj.window = WindowManager.convert(extension, restored, {populate: true});
-      return Promise.resolve([sessionObj]);
-    });
-  }
-  sessionObj.tab = TabManager.for(extension).convert(restored);
-  return Promise.resolve([sessionObj]);
-}
-
-extensions.registerSchemaAPI("sessions", "addon_parent", context => {
-  let {extension} = context;
-  return {
-    sessions: {
-      getRecentlyClosed: function(filter) {
-        let maxResults = filter.maxResults == undefined ? this.MAX_SESSION_RESULTS : filter.maxResults;
-        return Promise.resolve(getRecentlyClosed(maxResults, extension));
-      },
-      restore: function(sessionId) {
-        let session, closedId;
-        if (sessionId) {
-          closedId = sessionId;
-          session = SessionStore.undoCloseById(closedId);
-        } else if (SessionStore.lastClosedObjectType == "window") {
-          // If the most recently closed object is a window, just undo closing the most recent window.
-          session = SessionStore.undoCloseWindow(0);
-        } else {
-          // It is a tab, and we cannot call SessionStore.undoCloseTab without a window,
-          // so we must find the tab in which case we can just use its closedId.
-          let recentlyClosedTabs = [];
-          for (let window of WindowListManager.browserWindows()) {
-            let closedTabData = SessionStore.getClosedTabData(window, false);
-            for (let tab of closedTabData) {
-              recentlyClosedTabs.push(tab);
-            }
-          }
-
-          // Sort the tabs.
-          recentlyClosedTabs.sort((a, b) => b.closedAt - a.closedAt);
-
-          // Use the closedId of the most recently closed tab to restore it.
-          closedId = recentlyClosedTabs[0].closedId;
-          session = SessionStore.undoCloseById(closedId);
-        }
-        return createSession(session, extension, closedId);
-      },
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/ext-tabs.js b/application/basilisk/components/webextensions/ext-tabs.js
deleted file mode 100644
index bb575aaab..000000000
--- a/application/basilisk/components/webextensions/ext-tabs.js
+++ /dev/null
@@ -1,1093 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-XPCOMUtils.defineLazyServiceGetter(this, "aboutNewTabService",
-                                   "@mozilla.org/browser/aboutnewtab-service;1",
-                                   "nsIAboutNewTabService");
-
-XPCOMUtils.defineLazyModuleGetter(this, "MatchPattern",
-                                  "resource://gre/modules/MatchPattern.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
-                                  "resource://gre/modules/PrivateBrowsingUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PromiseUtils",
-                                  "resource://gre/modules/PromiseUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Services",
-                                  "resource://gre/modules/Services.jsm");
-
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-
-var {
-  EventManager,
-  ignoreEvent,
-} = ExtensionUtils;
-
-// This function is pretty tightly tied to Extension.jsm.
-// Its job is to fill in the |tab| property of the sender.
-function getSender(extension, target, sender) {
-  if ("tabId" in sender) {
-    // The message came from an ExtensionContext. In that case, it should
-    // include a tabId property (which is filled in by the page-open
-    // listener below).
-    let tab = TabManager.getTab(sender.tabId, null, null);
-    delete sender.tabId;
-    if (tab) {
-      sender.tab = TabManager.convert(extension, tab);
-      return;
-    }
-  }
-  if (target instanceof Ci.nsIDOMXULElement) {
-    // If the message was sent from a content script to a <browser> element,
-    // then we can just get the `tab` from `target`.
-    let tabbrowser = target.ownerGlobal.gBrowser;
-    if (tabbrowser) {
-      let tab = tabbrowser.getTabForBrowser(target);
-
-      // `tab` can be `undefined`, e.g. for extension popups. This condition is
-      // reached if `getSender` is called for a popup without a valid `tabId`.
-      if (tab) {
-        sender.tab = TabManager.convert(extension, tab);
-      }
-    }
-  }
-}
-
-// Used by Extension.jsm
-global.tabGetSender = getSender;
-
-/* eslint-disable mozilla/balanced-listeners */
-
-extensions.on("page-shutdown", (type, context) => {
-  if (context.viewType == "tab") {
-    if (context.extension.id !== context.xulBrowser.contentPrincipal.addonId) {
-      // Only close extension tabs.
-      // This check prevents about:addons from closing when it contains a
-      // WebExtension as an embedded inline options page.
-      return;
-    }
-    let {gBrowser} = context.xulBrowser.ownerGlobal;
-    if (gBrowser) {
-      let tab = gBrowser.getTabForBrowser(context.xulBrowser);
-      if (tab) {
-        gBrowser.removeTab(tab);
-      }
-    }
-  }
-});
-
-extensions.on("fill-browser-data", (type, browser, data) => {
-  data.tabId = browser ? TabManager.getBrowserId(browser) : -1;
-});
-/* eslint-enable mozilla/balanced-listeners */
-
-global.currentWindow = function(context) {
-  let {xulWindow} = context;
-  if (xulWindow && context.viewType != "background") {
-    return xulWindow;
-  }
-  return WindowManager.topWindow;
-};
-
-let tabListener = {
-  init() {
-    if (this.initialized) {
-      return;
-    }
-
-    this.adoptedTabs = new WeakMap();
-
-    this.handleWindowOpen = this.handleWindowOpen.bind(this);
-    this.handleWindowClose = this.handleWindowClose.bind(this);
-
-    AllWindowEvents.addListener("TabClose", this);
-    AllWindowEvents.addListener("TabOpen", this);
-    WindowListManager.addOpenListener(this.handleWindowOpen);
-    WindowListManager.addCloseListener(this.handleWindowClose);
-
-    EventEmitter.decorate(this);
-
-    this.initialized = true;
-  },
-
-  handleEvent(event) {
-    switch (event.type) {
-      case "TabOpen":
-        if (event.detail.adoptedTab) {
-          this.adoptedTabs.set(event.detail.adoptedTab, event.target);
-        }
-
-        // We need to delay sending this event until the next tick, since the
-        // tab does not have its final index when the TabOpen event is dispatched.
-        Promise.resolve().then(() => {
-          if (event.detail.adoptedTab) {
-            this.emitAttached(event.originalTarget);
-          } else {
-            this.emitCreated(event.originalTarget);
-          }
-        });
-        break;
-
-      case "TabClose":
-        let tab = event.originalTarget;
-
-        if (event.detail.adoptedBy) {
-          this.emitDetached(tab, event.detail.adoptedBy);
-        } else {
-          this.emitRemoved(tab, false);
-        }
-        break;
-    }
-  },
-
-  handleWindowOpen(window) {
-    if (window.arguments[0] instanceof window.XULElement) {
-      // If the first window argument is a XUL element, it means the
-      // window is about to adopt a tab from another window to replace its
-      // initial tab.
-      //
-      // Note that this event handler depends on running before the
-      // delayed startup code in browser.js, which is currently triggered
-      // by the first MozAfterPaint event. That code handles finally
-      // adopting the tab, and clears it from the arguments list in the
-      // process, so if we run later than it, we're too late.
-      let tab = window.arguments[0];
-      this.adoptedTabs.set(tab, window.gBrowser.tabs[0]);
-
-      // We need to be sure to fire this event after the onDetached event
-      // for the original tab.
-      let listener = (event, details) => {
-        if (details.tab == tab) {
-          this.off("tab-detached", listener);
-
-          Promise.resolve().then(() => {
-            this.emitAttached(details.adoptedBy);
-          });
-        }
-      };
-
-      this.on("tab-detached", listener);
-    } else {
-      for (let tab of window.gBrowser.tabs) {
-        this.emitCreated(tab);
-      }
-    }
-  },
-
-  handleWindowClose(window) {
-    for (let tab of window.gBrowser.tabs) {
-      if (this.adoptedTabs.has(tab)) {
-        this.emitDetached(tab, this.adoptedTabs.get(tab));
-      } else {
-        this.emitRemoved(tab, true);
-      }
-    }
-  },
-
-  emitAttached(tab) {
-    let newWindowId = WindowManager.getId(tab.ownerGlobal);
-    let tabId = TabManager.getId(tab);
-
-    this.emit("tab-attached", {tab, tabId, newWindowId, newPosition: tab._tPos});
-  },
-
-  emitDetached(tab, adoptedBy) {
-    let oldWindowId = WindowManager.getId(tab.ownerGlobal);
-    let tabId = TabManager.getId(tab);
-
-    this.emit("tab-detached", {tab, adoptedBy, tabId, oldWindowId, oldPosition: tab._tPos});
-  },
-
-  emitCreated(tab) {
-    this.emit("tab-created", {tab});
-  },
-
-  emitRemoved(tab, isWindowClosing) {
-    let windowId = WindowManager.getId(tab.ownerGlobal);
-    let tabId = TabManager.getId(tab);
-
-    // When addons run in-process, `window.close()` is synchronous. Most other
-    // addon-invoked calls are asynchronous since they go through a proxy
-    // context via the message manager. This includes event registrations such
-    // as `tabs.onRemoved.addListener`.
-    // So, even if `window.close()` were to be called (in-process) after calling
-    // `tabs.onRemoved.addListener`, then the tab would be closed before the
-    // event listener is registered. To make sure that the event listener is
-    // notified, we dispatch `tabs.onRemoved` asynchronously.
-    Services.tm.mainThread.dispatch(() => {
-      this.emit("tab-removed", {tab, tabId, windowId, isWindowClosing});
-    }, Ci.nsIThread.DISPATCH_NORMAL);
-  },
-
-  tabReadyInitialized: false,
-  tabReadyPromises: new WeakMap(),
-  initializingTabs: new WeakSet(),
-
-  initTabReady() {
-    if (!this.tabReadyInitialized) {
-      AllWindowEvents.addListener("progress", this);
-
-      this.tabReadyInitialized = true;
-    }
-  },
-
-  onLocationChange(browser, webProgress, request, locationURI, flags) {
-    if (webProgress.isTopLevel) {
-      let gBrowser = browser.ownerGlobal.gBrowser;
-      let tab = gBrowser.getTabForBrowser(browser);
-
-      // Now we are certain that the first page in the tab was loaded.
-      this.initializingTabs.delete(tab);
-
-      // browser.innerWindowID is now set, resolve the promises if any.
-      let deferred = this.tabReadyPromises.get(tab);
-      if (deferred) {
-        deferred.resolve(tab);
-        this.tabReadyPromises.delete(tab);
-      }
-    }
-  },
-
-  /**
-   * Returns a promise that resolves when the tab is ready.
-   * Tabs created via the `tabs.create` method are "ready" once the location
-   * changes to the requested URL. Other tabs are assumed to be ready once their
-   * inner window ID is known.
-   *
-   * @param {XULElement} tab The <tab> element.
-   * @returns {Promise} Resolves with the given tab once ready.
-   */
-  awaitTabReady(tab) {
-    let deferred = this.tabReadyPromises.get(tab);
-    if (!deferred) {
-      deferred = PromiseUtils.defer();
-      if (!this.initializingTabs.has(tab) && tab.linkedBrowser.innerWindowID) {
-        deferred.resolve(tab);
-      } else {
-        this.initTabReady();
-        this.tabReadyPromises.set(tab, deferred);
-      }
-    }
-    return deferred.promise;
-  },
-};
-
-/* eslint-disable mozilla/balanced-listeners */
-extensions.on("startup", () => {
-  tabListener.init();
-});
-/* eslint-enable mozilla/balanced-listeners */
-
-extensions.registerSchemaAPI("tabs", "addon_parent", context => {
-  let {extension} = context;
-  let self = {
-    tabs: {
-      onActivated: new WindowEventManager(context, "tabs.onActivated", "TabSelect", (fire, event) => {
-        let tab = event.originalTarget;
-        let tabId = TabManager.getId(tab);
-        let windowId = WindowManager.getId(tab.ownerGlobal);
-        fire({tabId, windowId});
-      }).api(),
-
-      onCreated: new EventManager(context, "tabs.onCreated", fire => {
-        let listener = (eventName, event) => {
-          fire(TabManager.convert(extension, event.tab));
-        };
-
-        tabListener.on("tab-created", listener);
-        return () => {
-          tabListener.off("tab-created", listener);
-        };
-      }).api(),
-
-      /**
-       * Since multiple tabs currently can't be highlighted, onHighlighted
-       * essentially acts an alias for self.tabs.onActivated but returns
-       * the tabId in an array to match the API.
-       * @see  https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/Tabs/onHighlighted
-      */
-      onHighlighted: new WindowEventManager(context, "tabs.onHighlighted", "TabSelect", (fire, event) => {
-        let tab = event.originalTarget;
-        let tabIds = [TabManager.getId(tab)];
-        let windowId = WindowManager.getId(tab.ownerGlobal);
-        fire({tabIds, windowId});
-      }).api(),
-
-      onAttached: new EventManager(context, "tabs.onAttached", fire => {
-        let listener = (eventName, event) => {
-          fire(event.tabId, {newWindowId: event.newWindowId, newPosition: event.newPosition});
-        };
-
-        tabListener.on("tab-attached", listener);
-        return () => {
-          tabListener.off("tab-attached", listener);
-        };
-      }).api(),
-
-      onDetached: new EventManager(context, "tabs.onDetached", fire => {
-        let listener = (eventName, event) => {
-          fire(event.tabId, {oldWindowId: event.oldWindowId, oldPosition: event.oldPosition});
-        };
-
-        tabListener.on("tab-detached", listener);
-        return () => {
-          tabListener.off("tab-detached", listener);
-        };
-      }).api(),
-
-      onRemoved: new EventManager(context, "tabs.onRemoved", fire => {
-        let listener = (eventName, event) => {
-          fire(event.tabId, {windowId: event.windowId, isWindowClosing: event.isWindowClosing});
-        };
-
-        tabListener.on("tab-removed", listener);
-        return () => {
-          tabListener.off("tab-removed", listener);
-        };
-      }).api(),
-
-      onReplaced: ignoreEvent(context, "tabs.onReplaced"),
-
-      onMoved: new EventManager(context, "tabs.onMoved", fire => {
-        // There are certain circumstances where we need to ignore a move event.
-        //
-        // Namely, the first time the tab is moved after it's created, we need
-        // to report the final position as the initial position in the tab's
-        // onAttached or onCreated event. This is because most tabs are inserted
-        // in a temporary location and then moved after the TabOpen event fires,
-        // which generates a TabOpen event followed by a TabMove event, which
-        // does not match the contract of our API.
-        let ignoreNextMove = new WeakSet();
-
-        let openListener = event => {
-          ignoreNextMove.add(event.target);
-          // Remove the tab from the set on the next tick, since it will already
-          // have been moved by then.
-          Promise.resolve().then(() => {
-            ignoreNextMove.delete(event.target);
-          });
-        };
-
-        let moveListener = event => {
-          let tab = event.originalTarget;
-
-          if (ignoreNextMove.has(tab)) {
-            ignoreNextMove.delete(tab);
-            return;
-          }
-
-          fire(TabManager.getId(tab), {
-            windowId: WindowManager.getId(tab.ownerGlobal),
-            fromIndex: event.detail,
-            toIndex: tab._tPos,
-          });
-        };
-
-        AllWindowEvents.addListener("TabMove", moveListener);
-        AllWindowEvents.addListener("TabOpen", openListener);
-        return () => {
-          AllWindowEvents.removeListener("TabMove", moveListener);
-          AllWindowEvents.removeListener("TabOpen", openListener);
-        };
-      }).api(),
-
-      onUpdated: new EventManager(context, "tabs.onUpdated", fire => {
-        function sanitize(extension, changeInfo) {
-          let result = {};
-          let nonempty = false;
-          for (let prop in changeInfo) {
-            if ((prop != "favIconUrl" && prop != "url") || extension.hasPermission("tabs")) {
-              nonempty = true;
-              result[prop] = changeInfo[prop];
-            }
-          }
-          return [nonempty, result];
-        }
-
-        let fireForBrowser = (browser, changed) => {
-          let [needed, changeInfo] = sanitize(extension, changed);
-          if (needed) {
-            let gBrowser = browser.ownerGlobal.gBrowser;
-            let tabElem = gBrowser.getTabForBrowser(browser);
-
-            let tab = TabManager.convert(extension, tabElem);
-            fire(tab.id, changeInfo, tab);
-          }
-        };
-
-        let listener = event => {
-          let needed = [];
-          if (event.type == "TabAttrModified") {
-            let changed = event.detail.changed;
-            if (changed.includes("image")) {
-              needed.push("favIconUrl");
-            }
-            if (changed.includes("muted")) {
-              needed.push("mutedInfo");
-            }
-            if (changed.includes("soundplaying")) {
-              needed.push("audible");
-            }
-          } else if (event.type == "TabPinned") {
-            needed.push("pinned");
-          } else if (event.type == "TabUnpinned") {
-            needed.push("pinned");
-          }
-
-          if (needed.length && !extension.hasPermission("tabs")) {
-            needed = needed.filter(attr => attr != "url" && attr != "favIconUrl");
-          }
-
-          if (needed.length) {
-            let tab = TabManager.convert(extension, event.originalTarget);
-
-            let changeInfo = {};
-            for (let prop of needed) {
-              changeInfo[prop] = tab[prop];
-            }
-            fire(tab.id, changeInfo, tab);
-          }
-        };
-        let progressListener = {
-          onStateChange(browser, webProgress, request, stateFlags, statusCode) {
-            if (!webProgress.isTopLevel) {
-              return;
-            }
-
-            let status;
-            if (stateFlags & Ci.nsIWebProgressListener.STATE_IS_WINDOW) {
-              if (stateFlags & Ci.nsIWebProgressListener.STATE_START) {
-                status = "loading";
-              } else if (stateFlags & Ci.nsIWebProgressListener.STATE_STOP) {
-                status = "complete";
-              }
-            } else if (stateFlags & Ci.nsIWebProgressListener.STATE_STOP &&
-                       statusCode == Cr.NS_BINDING_ABORTED) {
-              status = "complete";
-            }
-
-            fireForBrowser(browser, {status});
-          },
-
-          onLocationChange(browser, webProgress, request, locationURI, flags) {
-            if (!webProgress.isTopLevel) {
-              return;
-            }
-
-            fireForBrowser(browser, {
-              status: webProgress.isLoadingDocument ? "loading" : "complete",
-              url: locationURI.spec,
-            });
-          },
-        };
-
-        AllWindowEvents.addListener("progress", progressListener);
-        AllWindowEvents.addListener("TabAttrModified", listener);
-        AllWindowEvents.addListener("TabPinned", listener);
-        AllWindowEvents.addListener("TabUnpinned", listener);
-
-        return () => {
-          AllWindowEvents.removeListener("progress", progressListener);
-          AllWindowEvents.removeListener("TabAttrModified", listener);
-          AllWindowEvents.removeListener("TabPinned", listener);
-          AllWindowEvents.removeListener("TabUnpinned", listener);
-        };
-      }).api(),
-
-      create: function(createProperties) {
-        return new Promise((resolve, reject) => {
-          let window = createProperties.windowId !== null ?
-            WindowManager.getWindow(createProperties.windowId, context) :
-            WindowManager.topWindow;
-          if (!window.gBrowser) {
-            let obs = (finishedWindow, topic, data) => {
-              if (finishedWindow != window) {
-                return;
-              }
-              Services.obs.removeObserver(obs, "browser-delayed-startup-finished");
-              resolve(window);
-            };
-            Services.obs.addObserver(obs, "browser-delayed-startup-finished", false);
-          } else {
-            resolve(window);
-          }
-        }).then(window => {
-          let url;
-
-          if (createProperties.url !== null) {
-            url = context.uri.resolve(createProperties.url);
-
-            if (!context.checkLoadURL(url, {dontReportErrors: true})) {
-              return Promise.reject({message: `Illegal URL: ${url}`});
-            }
-          }
-
-          if (createProperties.cookieStoreId && !extension.hasPermission("cookies")) {
-            return Promise.reject({message: `No permission for cookieStoreId: ${createProperties.cookieStoreId}`});
-          }
-
-          let options = {};
-          if (createProperties.cookieStoreId) {
-            if (!global.isValidCookieStoreId(createProperties.cookieStoreId)) {
-              return Promise.reject({message: `Illegal cookieStoreId: ${createProperties.cookieStoreId}`});
-            }
-
-            let privateWindow = PrivateBrowsingUtils.isBrowserPrivate(window.gBrowser);
-            if (privateWindow && !global.isPrivateCookieStoreId(createProperties.cookieStoreId)) {
-              return Promise.reject({message: `Illegal to set non-private cookieStorageId in a private window`});
-            }
-
-            if (!privateWindow && global.isPrivateCookieStoreId(createProperties.cookieStoreId)) {
-              return Promise.reject({message: `Illegal to set private cookieStorageId in a non-private window`});
-            }
-
-            if (global.isContainerCookieStoreId(createProperties.cookieStoreId)) {
-              let containerId = global.getContainerForCookieStoreId(createProperties.cookieStoreId);
-              if (!containerId) {
-                return Promise.reject({message: `No cookie store exists with ID ${createProperties.cookieStoreId}`});
-              }
-
-              options.userContextId = containerId;
-            }
-          }
-
-          tabListener.initTabReady();
-          let tab = window.gBrowser.addTab(url || window.BROWSER_NEW_TAB_URL, options);
-
-          let active = true;
-          if (createProperties.active !== null) {
-            active = createProperties.active;
-          }
-          if (active) {
-            window.gBrowser.selectedTab = tab;
-          }
-
-          if (createProperties.index !== null) {
-            window.gBrowser.moveTabTo(tab, createProperties.index);
-          }
-
-          if (createProperties.pinned) {
-            window.gBrowser.pinTab(tab);
-          }
-
-          if (createProperties.url && !createProperties.url.startsWith("about:")) {
-            // We can't wait for a location change event for about:newtab,
-            // since it may be pre-rendered, in which case its initial
-            // location change event has already fired.
-
-            // Mark the tab as initializing, so that operations like
-            // `executeScript` wait until the requested URL is loaded in
-            // the tab before dispatching messages to the inner window
-            // that contains the URL we're attempting to load.
-            tabListener.initializingTabs.add(tab);
-          }
-
-          return TabManager.convert(extension, tab);
-        });
-      },
-
-      remove: function(tabs) {
-        if (!Array.isArray(tabs)) {
-          tabs = [tabs];
-        }
-
-        for (let tabId of tabs) {
-          let tab = TabManager.getTab(tabId, context);
-          tab.ownerGlobal.gBrowser.removeTab(tab);
-        }
-
-        return Promise.resolve();
-      },
-
-      update: function(tabId, updateProperties) {
-        let tab = tabId !== null ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let tabbrowser = tab.ownerGlobal.gBrowser;
-
-        if (updateProperties.url !== null) {
-          let url = context.uri.resolve(updateProperties.url);
-
-          if (!context.checkLoadURL(url, {dontReportErrors: true})) {
-            return Promise.reject({message: `Illegal URL: ${url}`});
-          }
-
-          tab.linkedBrowser.loadURI(url);
-        }
-
-        if (updateProperties.active !== null) {
-          if (updateProperties.active) {
-            tabbrowser.selectedTab = tab;
-          } else {
-            // Not sure what to do here? Which tab should we select?
-          }
-        }
-        if (updateProperties.muted !== null) {
-          if (tab.muted != updateProperties.muted) {
-            tab.toggleMuteAudio(extension.uuid);
-          }
-        }
-        if (updateProperties.pinned !== null) {
-          if (updateProperties.pinned) {
-            tabbrowser.pinTab(tab);
-          } else {
-            tabbrowser.unpinTab(tab);
-          }
-        }
-        // FIXME: highlighted/selected, openerTabId
-
-        return Promise.resolve(TabManager.convert(extension, tab));
-      },
-
-      reload: function(tabId, reloadProperties) {
-        let tab = tabId !== null ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let flags = Ci.nsIWebNavigation.LOAD_FLAGS_NONE;
-        if (reloadProperties && reloadProperties.bypassCache) {
-          flags |= Ci.nsIWebNavigation.LOAD_FLAGS_BYPASS_CACHE;
-        }
-        tab.linkedBrowser.reloadWithFlags(flags);
-
-        return Promise.resolve();
-      },
-
-      get: function(tabId) {
-        let tab = TabManager.getTab(tabId, context);
-
-        return Promise.resolve(TabManager.convert(extension, tab));
-      },
-
-      getCurrent() {
-        let tab;
-        if (context.tabId) {
-          tab = TabManager.convert(extension, TabManager.getTab(context.tabId, context));
-        }
-        return Promise.resolve(tab);
-      },
-
-      query: function(queryInfo) {
-        let pattern = null;
-        if (queryInfo.url !== null) {
-          if (!extension.hasPermission("tabs")) {
-            return Promise.reject({message: 'The "tabs" permission is required to use the query API with the "url" parameter'});
-          }
-
-          pattern = new MatchPattern(queryInfo.url);
-        }
-
-        function matches(tab) {
-          let props = ["active", "pinned", "highlighted", "status", "title", "index"];
-          for (let prop of props) {
-            if (queryInfo[prop] !== null && queryInfo[prop] != tab[prop]) {
-              return false;
-            }
-          }
-
-          if (queryInfo.audible !== null) {
-            if (queryInfo.audible != tab.audible) {
-              return false;
-            }
-          }
-
-          if (queryInfo.muted !== null) {
-            if (queryInfo.muted != tab.mutedInfo.muted) {
-              return false;
-            }
-          }
-
-          if (queryInfo.cookieStoreId !== null &&
-              tab.cookieStoreId != queryInfo.cookieStoreId) {
-            return false;
-          }
-
-          if (pattern && !pattern.matches(Services.io.newURI(tab.url, null, null))) {
-            return false;
-          }
-
-          return true;
-        }
-
-        let result = [];
-        for (let window of WindowListManager.browserWindows()) {
-          let lastFocused = window === WindowManager.topWindow;
-          if (queryInfo.lastFocusedWindow !== null && queryInfo.lastFocusedWindow !== lastFocused) {
-            continue;
-          }
-
-          let windowType = WindowManager.windowType(window);
-          if (queryInfo.windowType !== null && queryInfo.windowType !== windowType) {
-            continue;
-          }
-
-          if (queryInfo.windowId !== null) {
-            if (queryInfo.windowId === WindowManager.WINDOW_ID_CURRENT) {
-              if (currentWindow(context) !== window) {
-                continue;
-              }
-            } else if (queryInfo.windowId !== WindowManager.getId(window)) {
-              continue;
-            }
-          }
-
-          if (queryInfo.currentWindow !== null) {
-            let eq = window === currentWindow(context);
-            if (queryInfo.currentWindow != eq) {
-              continue;
-            }
-          }
-
-          let tabs = TabManager.for(extension).getTabs(window);
-          for (let tab of tabs) {
-            if (matches(tab)) {
-              result.push(tab);
-            }
-          }
-        }
-        return Promise.resolve(result);
-      },
-
-      captureVisibleTab: function(windowId, options) {
-        if (!extension.hasPermission("<all_urls>")) {
-          return Promise.reject({message: "The <all_urls> permission is required to use the captureVisibleTab API"});
-        }
-
-        let window = windowId == null ?
-          WindowManager.topWindow :
-          WindowManager.getWindow(windowId, context);
-
-        let tab = window.gBrowser.selectedTab;
-        return tabListener.awaitTabReady(tab).then(() => {
-          let browser = tab.linkedBrowser;
-          let recipient = {
-            innerWindowID: browser.innerWindowID,
-          };
-
-          if (!options) {
-            options = {};
-          }
-          if (options.format == null) {
-            options.format = "png";
-          }
-          if (options.quality == null) {
-            options.quality = 92;
-          }
-
-          let message = {
-            options,
-            width: browser.clientWidth,
-            height: browser.clientHeight,
-          };
-
-          return context.sendMessage(browser.messageManager, "Extension:Capture",
-                                     message, {recipient});
-        });
-      },
-
-      detectLanguage: function(tabId) {
-        let tab = tabId !== null ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        return tabListener.awaitTabReady(tab).then(() => {
-          let browser = tab.linkedBrowser;
-          let recipient = {innerWindowID: browser.innerWindowID};
-
-          return context.sendMessage(browser.messageManager, "Extension:DetectLanguage",
-                                     {}, {recipient});
-        });
-      },
-
-      // Used to executeScript, insertCSS and removeCSS.
-      _execute: function(tabId, details, kind, method) {
-        let tab = tabId !== null ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let options = {
-          js: [],
-          css: [],
-          remove_css: method == "removeCSS",
-        };
-
-        // We require a `code` or a `file` property, but we can't accept both.
-        if ((details.code === null) == (details.file === null)) {
-          return Promise.reject({message: `${method} requires either a 'code' or a 'file' property, but not both`});
-        }
-
-        if (details.frameId !== null && details.allFrames) {
-          return Promise.reject({message: `'frameId' and 'allFrames' are mutually exclusive`});
-        }
-
-        if (TabManager.for(extension).hasActiveTabPermission(tab)) {
-          // If we have the "activeTab" permission for this tab, ignore
-          // the host whitelist.
-          options.matchesHost = ["<all_urls>"];
-        } else {
-          options.matchesHost = extension.whiteListedHosts.serialize();
-        }
-
-        if (details.code !== null) {
-          options[kind + "Code"] = details.code;
-        }
-        if (details.file !== null) {
-          let url = context.uri.resolve(details.file);
-          if (!extension.isExtensionURL(url)) {
-            return Promise.reject({message: "Files to be injected must be within the extension"});
-          }
-          options[kind].push(url);
-        }
-        if (details.allFrames) {
-          options.all_frames = details.allFrames;
-        }
-        if (details.frameId !== null) {
-          options.frame_id = details.frameId;
-        }
-        if (details.matchAboutBlank) {
-          options.match_about_blank = details.matchAboutBlank;
-        }
-        if (details.runAt !== null) {
-          options.run_at = details.runAt;
-        } else {
-          options.run_at = "document_idle";
-        }
-
-        return tabListener.awaitTabReady(tab).then(() => {
-          let browser = tab.linkedBrowser;
-          let recipient = {
-            innerWindowID: browser.innerWindowID,
-          };
-
-          return context.sendMessage(browser.messageManager, "Extension:Execute", {options}, {recipient});
-        });
-      },
-
-      executeScript: function(tabId, details) {
-        return self.tabs._execute(tabId, details, "js", "executeScript");
-      },
-
-      insertCSS: function(tabId, details) {
-        return self.tabs._execute(tabId, details, "css", "insertCSS").then(() => {});
-      },
-
-      removeCSS: function(tabId, details) {
-        return self.tabs._execute(tabId, details, "css", "removeCSS").then(() => {});
-      },
-
-      move: function(tabIds, moveProperties) {
-        let index = moveProperties.index;
-        let tabsMoved = [];
-        if (!Array.isArray(tabIds)) {
-          tabIds = [tabIds];
-        }
-
-        let destinationWindow = null;
-        if (moveProperties.windowId !== null) {
-          destinationWindow = WindowManager.getWindow(moveProperties.windowId, context);
-          // Fail on an invalid window.
-          if (!destinationWindow) {
-            return Promise.reject({message: `Invalid window ID: ${moveProperties.windowId}`});
-          }
-        }
-
-        /*
-          Indexes are maintained on a per window basis so that a call to
-            move([tabA, tabB], {index: 0})
-              -> tabA to 0, tabB to 1 if tabA and tabB are in the same window
-            move([tabA, tabB], {index: 0})
-              -> tabA to 0, tabB to 0 if tabA and tabB are in different windows
-        */
-        let indexMap = new Map();
-
-        let tabs = tabIds.map(tabId => TabManager.getTab(tabId, context));
-        for (let tab of tabs) {
-          // If the window is not specified, use the window from the tab.
-          let window = destinationWindow || tab.ownerGlobal;
-          let gBrowser = window.gBrowser;
-
-          let insertionPoint = indexMap.get(window) || index;
-          // If the index is -1 it should go to the end of the tabs.
-          if (insertionPoint == -1) {
-            insertionPoint = gBrowser.tabs.length;
-          }
-
-          // We can only move pinned tabs to a point within, or just after,
-          // the current set of pinned tabs. Unpinned tabs, likewise, can only
-          // be moved to a position after the current set of pinned tabs.
-          // Attempts to move a tab to an illegal position are ignored.
-          let numPinned = gBrowser._numPinnedTabs;
-          let ok = tab.pinned ? insertionPoint <= numPinned : insertionPoint >= numPinned;
-          if (!ok) {
-            continue;
-          }
-
-          indexMap.set(window, insertionPoint + 1);
-
-          if (tab.ownerGlobal != window) {
-            // If the window we are moving the tab in is different, then move the tab
-            // to the new window.
-            tab = gBrowser.adoptTab(tab, insertionPoint, false);
-          } else {
-            // If the window we are moving is the same, just move the tab.
-            gBrowser.moveTabTo(tab, insertionPoint);
-          }
-          tabsMoved.push(tab);
-        }
-
-        return Promise.resolve(tabsMoved.map(tab => TabManager.convert(extension, tab)));
-      },
-
-      duplicate: function(tabId) {
-        let tab = TabManager.getTab(tabId, context);
-
-        let gBrowser = tab.ownerGlobal.gBrowser;
-        let newTab = gBrowser.duplicateTab(tab);
-
-        return new Promise(resolve => {
-          // We need to use SSTabRestoring because any attributes set before
-          // are ignored. SSTabRestored is too late and results in a jump in
-          // the UI. See http://bit.ly/session-store-api for more information.
-          newTab.addEventListener("SSTabRestoring", function listener() {
-            // As the tab is restoring, move it to the correct position.
-            newTab.removeEventListener("SSTabRestoring", listener);
-            // Pinned tabs that are duplicated are inserted
-            // after the existing pinned tab and pinned.
-            if (tab.pinned) {
-              gBrowser.pinTab(newTab);
-            }
-            gBrowser.moveTabTo(newTab, tab._tPos + 1);
-          });
-
-          newTab.addEventListener("SSTabRestored", function listener() {
-            // Once it has been restored, select it and return the promise.
-            newTab.removeEventListener("SSTabRestored", listener);
-            gBrowser.selectedTab = newTab;
-            return resolve(TabManager.convert(extension, newTab));
-          });
-        });
-      },
-
-      getZoom(tabId) {
-        let tab = tabId ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let {ZoomManager} = tab.ownerGlobal;
-        let zoom = ZoomManager.getZoomForBrowser(tab.linkedBrowser);
-
-        return Promise.resolve(zoom);
-      },
-
-      setZoom(tabId, zoom) {
-        let tab = tabId ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let {FullZoom, ZoomManager} = tab.ownerGlobal;
-
-        if (zoom === 0) {
-          // A value of zero means use the default zoom factor.
-          return FullZoom.reset(tab.linkedBrowser);
-        } else if (zoom >= ZoomManager.MIN && zoom <= ZoomManager.MAX) {
-          FullZoom.setZoom(zoom, tab.linkedBrowser);
-        } else {
-          return Promise.reject({
-            message: `Zoom value ${zoom} out of range (must be between ${ZoomManager.MIN} and ${ZoomManager.MAX})`,
-          });
-        }
-
-        return Promise.resolve();
-      },
-
-      _getZoomSettings(tabId) {
-        let tab = tabId ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let {FullZoom} = tab.ownerGlobal;
-
-        return {
-          mode: "automatic",
-          scope: FullZoom.siteSpecific ? "per-origin" : "per-tab",
-          defaultZoomFactor: 1,
-        };
-      },
-
-      getZoomSettings(tabId) {
-        return Promise.resolve(this._getZoomSettings(tabId));
-      },
-
-      setZoomSettings(tabId, settings) {
-        let tab = tabId ? TabManager.getTab(tabId, context) : TabManager.activeTab;
-
-        let currentSettings = this._getZoomSettings(tab.id);
-
-        if (!Object.keys(settings).every(key => settings[key] === currentSettings[key])) {
-          return Promise.reject(`Unsupported zoom settings: ${JSON.stringify(settings)}`);
-        }
-        return Promise.resolve();
-      },
-
-      onZoomChange: new EventManager(context, "tabs.onZoomChange", fire => {
-        let getZoomLevel = browser => {
-          let {ZoomManager} = browser.ownerGlobal;
-
-          return ZoomManager.getZoomForBrowser(browser);
-        };
-
-        // Stores the last known zoom level for each tab's browser.
-        // WeakMap[<browser> -> number]
-        let zoomLevels = new WeakMap();
-
-        // Store the zoom level for all existing tabs.
-        for (let window of WindowListManager.browserWindows()) {
-          for (let tab of window.gBrowser.tabs) {
-            let browser = tab.linkedBrowser;
-            zoomLevels.set(browser, getZoomLevel(browser));
-          }
-        }
-
-        let tabCreated = (eventName, event) => {
-          let browser = event.tab.linkedBrowser;
-          zoomLevels.set(browser, getZoomLevel(browser));
-        };
-
-
-        let zoomListener = event => {
-          let browser = event.originalTarget;
-
-          // For non-remote browsers, this event is dispatched on the document
-          // rather than on the <browser>.
-          if (browser instanceof Ci.nsIDOMDocument) {
-            browser = browser.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
-                             .getInterface(Ci.nsIDocShell)
-                             .chromeEventHandler;
-          }
-
-          let {gBrowser} = browser.ownerGlobal;
-          let tab = gBrowser.getTabForBrowser(browser);
-          if (!tab) {
-            // We only care about zoom events in the top-level browser of a tab.
-            return;
-          }
-
-          let oldZoomFactor = zoomLevels.get(browser);
-          let newZoomFactor = getZoomLevel(browser);
-
-          if (oldZoomFactor != newZoomFactor) {
-            zoomLevels.set(browser, newZoomFactor);
-
-            let tabId = TabManager.getId(tab);
-            fire({
-              tabId,
-              oldZoomFactor,
-              newZoomFactor,
-              zoomSettings: self.tabs._getZoomSettings(tabId),
-            });
-          }
-        };
-
-        tabListener.on("tab-attached", tabCreated);
-        tabListener.on("tab-created", tabCreated);
-
-        AllWindowEvents.addListener("FullZoomChange", zoomListener);
-        AllWindowEvents.addListener("TextZoomChange", zoomListener);
-        return () => {
-          tabListener.off("tab-attached", tabCreated);
-          tabListener.off("tab-created", tabCreated);
-
-          AllWindowEvents.removeListener("FullZoomChange", zoomListener);
-          AllWindowEvents.removeListener("TextZoomChange", zoomListener);
-        };
-      }).api(),
-    },
-  };
-  return self;
-});
diff --git a/application/basilisk/components/webextensions/ext-utils.js b/application/basilisk/components/webextensions/ext-utils.js
deleted file mode 100644
index 75b2f4bd4..000000000
--- a/application/basilisk/components/webextensions/ext-utils.js
+++ /dev/null
@@ -1,1239 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-XPCOMUtils.defineLazyModuleGetter(this, "CustomizableUI",
-                                  "resource:///modules/CustomizableUI.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
-                                  "resource://gre/modules/NetUtil.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
-                                  "resource://gre/modules/PrivateBrowsingUtils.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Task",
-                                  "resource://gre/modules/Task.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "setTimeout",
-                                  "resource://gre/modules/Timer.jsm");
-
-XPCOMUtils.defineLazyServiceGetter(this, "styleSheetService",
-                                   "@mozilla.org/content/style-sheet-service;1",
-                                   "nsIStyleSheetService");
-
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-Cu.import("resource://gre/modules/AppConstants.jsm");
-
-const POPUP_LOAD_TIMEOUT_MS = 200;
-
-const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
-
-var {
-  DefaultWeakMap,
-  EventManager,
-  promiseEvent,
-} = ExtensionUtils;
-
-// This file provides some useful code for the |tabs| and |windows|
-// modules. All of the code is installed on |global|, which is a scope
-// shared among the different ext-*.js scripts.
-
-global.makeWidgetId = id => {
-  id = id.toLowerCase();
-  // FIXME: This allows for collisions.
-  return id.replace(/[^a-z0-9_-]/g, "_");
-};
-
-function promisePopupShown(popup) {
-  return new Promise(resolve => {
-    if (popup.state == "open") {
-      resolve();
-    } else {
-      popup.addEventListener("popupshown", function onPopupShown(event) {
-        popup.removeEventListener("popupshown", onPopupShown);
-        resolve();
-      });
-    }
-  });
-}
-
-XPCOMUtils.defineLazyGetter(this, "popupStylesheets", () => {
-  let stylesheets = ["chrome://browser/content/extension.css"];
-
-  if (AppConstants.platform === "macosx") {
-    stylesheets.push("chrome://browser/content/extension-mac.css");
-  }
-  return stylesheets;
-});
-
-XPCOMUtils.defineLazyGetter(this, "standaloneStylesheets", () => {
-  let stylesheets = [];
-
-  if (AppConstants.platform === "macosx") {
-    stylesheets.push("chrome://browser/content/extension-mac-panel.css");
-  }
-  if (AppConstants.platform === "win") {
-    stylesheets.push("chrome://browser/content/extension-win-panel.css");
-  }
-  return stylesheets;
-});
-
-class BasePopup {
-  constructor(extension, viewNode, popupURL, browserStyle, fixedWidth = false) {
-    this.extension = extension;
-    this.popupURL = popupURL;
-    this.viewNode = viewNode;
-    this.browserStyle = browserStyle;
-    this.window = viewNode.ownerGlobal;
-    this.destroyed = false;
-    this.fixedWidth = fixedWidth;
-
-    extension.callOnClose(this);
-
-    this.contentReady = new Promise(resolve => {
-      this._resolveContentReady = resolve;
-    });
-
-    this.viewNode.addEventListener(this.DESTROY_EVENT, this);
-
-    let doc = viewNode.ownerDocument;
-    let arrowContent = doc.getAnonymousElementByAttribute(this.panel, "class", "panel-arrowcontent");
-    this.borderColor = doc.defaultView.getComputedStyle(arrowContent).borderTopColor;
-
-    this.browser = null;
-    this.browserLoaded = new Promise((resolve, reject) => {
-      this.browserLoadedDeferred = {resolve, reject};
-    });
-    this.browserReady = this.createBrowser(viewNode, popupURL);
-
-    BasePopup.instances.get(this.window).set(extension, this);
-  }
-
-  static for(extension, window) {
-    return BasePopup.instances.get(window).get(extension);
-  }
-
-  close() {
-    this.closePopup();
-  }
-
-  destroy() {
-    this.extension.forgetOnClose(this);
-
-    this.destroyed = true;
-    this.browserLoadedDeferred.reject(new Error("Popup destroyed"));
-    return this.browserReady.then(() => {
-      this.destroyBrowser(this.browser);
-      this.browser.remove();
-
-      this.viewNode.removeEventListener(this.DESTROY_EVENT, this);
-      this.viewNode.style.maxHeight = "";
-
-      if (this.panel) {
-        this.panel.style.removeProperty("--arrowpanel-background");
-        this.panel.style.removeProperty("--panel-arrow-image-vertical");
-      }
-
-      BasePopup.instances.get(this.window).delete(this.extension);
-
-      this.browser = null;
-      this.viewNode = null;
-    });
-  }
-
-  destroyBrowser(browser) {
-    let mm = browser.messageManager;
-    // If the browser has already been removed from the document, because the
-    // popup was closed externally, there will be no message manager here.
-    if (mm) {
-      mm.removeMessageListener("DOMTitleChanged", this);
-      mm.removeMessageListener("Extension:BrowserBackgroundChanged", this);
-      mm.removeMessageListener("Extension:BrowserContentLoaded", this);
-      mm.removeMessageListener("Extension:BrowserResized", this);
-      mm.removeMessageListener("Extension:DOMWindowClose", this);
-    }
-  }
-
-  // Returns the name of the event fired on `viewNode` when the popup is being
-  // destroyed. This must be implemented by every subclass.
-  get DESTROY_EVENT() {
-    throw new Error("Not implemented");
-  }
-
-  get STYLESHEETS() {
-    let sheets = [];
-
-    if (this.browserStyle) {
-      sheets.push(...popupStylesheets);
-    }
-    if (!this.fixedWidth) {
-      sheets.push(...standaloneStylesheets);
-    }
-
-    return sheets;
-  }
-
-  get panel() {
-    let panel = this.viewNode;
-    while (panel && panel.localName != "panel") {
-      panel = panel.parentNode;
-    }
-    return panel;
-  }
-
-  receiveMessage({name, data}) {
-    switch (name) {
-      case "DOMTitleChanged":
-        this.viewNode.setAttribute("aria-label", this.browser.contentTitle);
-        break;
-
-      case "Extension:BrowserBackgroundChanged":
-        this.setBackground(data.background);
-        break;
-
-      case "Extension:BrowserContentLoaded":
-        this.browserLoadedDeferred.resolve();
-        break;
-
-      case "Extension:BrowserResized":
-        this._resolveContentReady();
-        if (this.ignoreResizes) {
-          this.dimensions = data;
-        } else {
-          this.resizeBrowser(data);
-        }
-        break;
-
-      case "Extension:DOMWindowClose":
-        this.closePopup();
-        break;
-    }
-  }
-
-  handleEvent(event) {
-    switch (event.type) {
-      case this.DESTROY_EVENT:
-        this.destroy();
-        break;
-    }
-  }
-
-  createBrowser(viewNode, popupURL = null) {
-    let document = viewNode.ownerDocument;
-    this.browser = document.createElementNS(XUL_NS, "browser");
-    this.browser.setAttribute("type", "content");
-    this.browser.setAttribute("disableglobalhistory", "true");
-    this.browser.setAttribute("transparent", "true");
-    this.browser.setAttribute("class", "webextension-popup-browser");
-    this.browser.setAttribute("tooltip", "aHTMLTooltip");
-
-    // We only need flex sizing for the sake of the slide-in sub-views of the
-    // main menu panel, so that the browser occupies the full width of the view,
-    // and also takes up any extra height that's available to it.
-    this.browser.setAttribute("flex", "1");
-
-    // Note: When using noautohide panels, the popup manager will add width and
-    // height attributes to the panel, breaking our resize code, if the browser
-    // starts out smaller than 30px by 10px. This isn't an issue now, but it
-    // will be if and when we popup debugging.
-
-    viewNode.appendChild(this.browser);
-
-    extensions.emit("extension-browser-inserted", this.browser);
-    let windowId = WindowManager.getId(this.browser.ownerGlobal);
-    this.browser.messageManager.sendAsyncMessage("Extension:InitExtensionView", {
-      viewType: "popup",
-      windowId,
-    });
-    // TODO(robwu): Rework this to use the Extension:ExtensionViewLoaded message
-    // to detect loads and so on. And definitely move this content logic inside
-    // a file in the child process.
-
-    let initBrowser = browser => {
-      let mm = browser.messageManager;
-      mm.addMessageListener("DOMTitleChanged", this);
-      mm.addMessageListener("Extension:BrowserBackgroundChanged", this);
-      mm.addMessageListener("Extension:BrowserContentLoaded", this);
-      mm.addMessageListener("Extension:BrowserResized", this);
-      mm.addMessageListener("Extension:DOMWindowClose", this, true);
-    };
-
-    if (!popupURL) {
-      initBrowser(this.browser);
-      return this.browser;
-    }
-
-    return promiseEvent(this.browser, "load").then(() => {
-      initBrowser(this.browser);
-
-      let mm = this.browser.messageManager;
-
-      mm.loadFrameScript(
-        "chrome://extensions/content/ext-browser-content.js", false);
-
-      mm.sendAsyncMessage("Extension:InitBrowser", {
-        allowScriptsToClose: true,
-        fixedWidth: this.fixedWidth,
-        maxWidth: 800,
-        maxHeight: 600,
-        stylesheets: this.STYLESHEETS,
-      });
-
-      this.browser.setAttribute("src", popupURL);
-    });
-  }
-
-  resizeBrowser({width, height, detail}) {
-    if (this.fixedWidth) {
-      // Figure out how much extra space we have on the side of the panel
-      // opposite the arrow.
-      let side = this.panel.getAttribute("side") == "top" ? "bottom" : "top";
-      let maxHeight = this.viewHeight + this.extraHeight[side];
-
-      height = Math.min(height, maxHeight);
-      this.browser.style.height = `${height}px`;
-
-      // Set a maximum height on the <panelview> element to our preferred
-      // maximum height, so that the PanelUI resizing code can make an accurate
-      // calculation. If we don't do this, the flex sizing logic will prevent us
-      // from ever reporting a preferred size smaller than the height currently
-      // available to us in the panel.
-      height = Math.max(height, this.viewHeight);
-      this.viewNode.style.maxHeight = `${height}px`;
-    } else {
-      this.browser.style.width = `${width}px`;
-      this.browser.style.height = `${height}px`;
-    }
-
-    let event = new this.window.CustomEvent("WebExtPopupResized", {detail});
-    this.browser.dispatchEvent(event);
-  }
-
-  setBackground(background) {
-    let panelBackground = "";
-    let panelArrow = "";
-
-    if (background) {
-      let borderColor = this.borderColor || background;
-
-      panelBackground = background;
-      panelArrow = `url("data:image/svg+xml,${encodeURIComponent(`<?xml version="1.0" encoding="UTF-8"?>
-        <svg xmlns="http://www.w3.org/2000/svg" width="20" height="10">
-          <path d="M 0,10 L 10,0 20,10 z" fill="${borderColor}"/>
-          <path d="M 1,10 L 10,1 19,10 z" fill="${background}"/>
-        </svg>
-      `)}")`;
-    }
-
-    this.panel.style.setProperty("--arrowpanel-background", panelBackground);
-    this.panel.style.setProperty("--panel-arrow-image-vertical", panelArrow);
-    this.background = background;
-  }
-}
-
-/**
- * A map of active popups for a given browser window.
- *
- * WeakMap[window -> WeakMap[Extension -> BasePopup]]
- */
-BasePopup.instances = new DefaultWeakMap(() => new WeakMap());
-
-class PanelPopup extends BasePopup {
-  constructor(extension, imageNode, popupURL, browserStyle) {
-    let document = imageNode.ownerDocument;
-
-    let panel = document.createElement("panel");
-    panel.setAttribute("id", makeWidgetId(extension.id) + "-panel");
-    panel.setAttribute("class", "browser-extension-panel");
-    panel.setAttribute("tabspecific", "true");
-    panel.setAttribute("type", "arrow");
-    panel.setAttribute("role", "group");
-
-    document.getElementById("mainPopupSet").appendChild(panel);
-
-    super(extension, panel, popupURL, browserStyle);
-
-    this.contentReady.then(() => {
-      panel.openPopup(imageNode, "bottomcenter topright", 0, 0, false, false);
-
-      let event = new this.window.CustomEvent("WebExtPopupLoaded", {
-        bubbles: true,
-        detail: {extension},
-      });
-      this.browser.dispatchEvent(event);
-    });
-  }
-
-  get DESTROY_EVENT() {
-    return "popuphidden";
-  }
-
-  destroy() {
-    super.destroy();
-    this.viewNode.remove();
-  }
-
-  closePopup() {
-    promisePopupShown(this.viewNode).then(() => {
-      // Make sure we're not already destroyed.
-      if (this.viewNode) {
-        this.viewNode.hidePopup();
-      }
-    });
-  }
-}
-
-class ViewPopup extends BasePopup {
-  constructor(extension, window, popupURL, browserStyle, fixedWidth) {
-    let document = window.document;
-
-    // Create a temporary panel to hold the browser while it pre-loads its
-    // content. This panel will never be shown, but the browser's docShell will
-    // be swapped with the browser in the real panel when it's ready.
-    let panel = document.createElement("panel");
-    panel.setAttribute("type", "arrow");
-    document.getElementById("mainPopupSet").appendChild(panel);
-
-    super(extension, panel, popupURL, browserStyle, fixedWidth);
-
-    this.ignoreResizes = true;
-
-    this.attached = false;
-    this.tempPanel = panel;
-
-    this.browser.classList.add("webextension-preload-browser");
-  }
-
-  /**
-   * Attaches the pre-loaded browser to the given view node, and reserves a
-   * promise which resolves when the browser is ready.
-   *
-   * @param {Element} viewNode
-   *        The node to attach the browser to.
-   * @returns {Promise<boolean>}
-   *        Resolves when the browser is ready. Resolves to `false` if the
-   *        browser was destroyed before it was fully loaded, and the popup
-   *        should be closed, or `true` otherwise.
-   */
-  attach(viewNode) {
-    return Task.spawn(function* () {
-      this.viewNode = viewNode;
-      this.viewNode.addEventListener(this.DESTROY_EVENT, this);
-
-      // Wait until the browser element is fully initialized, and give it at least
-      // a short grace period to finish loading its initial content, if necessary.
-      //
-      // In practice, the browser that was created by the mousdown handler should
-      // nearly always be ready by this point.
-      yield Promise.all([
-        this.browserReady,
-        Promise.race([
-          // This promise may be rejected if the popup calls window.close()
-          // before it has fully loaded.
-          this.browserLoaded.catch(() => {}),
-          new Promise(resolve => setTimeout(resolve, POPUP_LOAD_TIMEOUT_MS)),
-        ]),
-      ]);
-
-      if (!this.destroyed && !this.panel) {
-        this.destroy();
-      }
-
-      if (this.destroyed) {
-        return false;
-      }
-
-      this.attached = true;
-
-      // Store the initial height of the view, so that we never resize menu panel
-      // sub-views smaller than the initial height of the menu.
-      this.viewHeight = this.viewNode.boxObject.height;
-
-      // Calculate the extra height available on the screen above and below the
-      // menu panel. Use that to calculate the how much the sub-view may grow.
-      let popupRect = this.panel.getBoundingClientRect();
-
-      this.setBackground(this.background);
-
-      let win = this.window;
-      let popupBottom = win.mozInnerScreenY + popupRect.bottom;
-      let popupTop = win.mozInnerScreenY + popupRect.top;
-
-      let screenBottom = win.screen.availTop + win.screen.availHeight;
-      this.extraHeight = {
-        bottom: Math.max(0, screenBottom - popupBottom),
-        top:  Math.max(0, popupTop - win.screen.availTop),
-      };
-
-      // Create a new browser in the real popup.
-      let browser = this.browser;
-      this.createBrowser(this.viewNode);
-
-      this.browser.swapDocShells(browser);
-      this.destroyBrowser(browser);
-
-      this.ignoreResizes = false;
-      if (this.dimensions) {
-        this.resizeBrowser(this.dimensions);
-      }
-
-      this.tempPanel.remove();
-      this.tempPanel = null;
-
-      let event = new this.window.CustomEvent("WebExtPopupLoaded", {
-        bubbles: true,
-        detail: {extension: this.extension},
-      });
-      this.browser.dispatchEvent(event);
-
-      return true;
-    }.bind(this));
-  }
-
-  destroy() {
-    return super.destroy().then(() => {
-      if (this.tempPanel) {
-        this.tempPanel.remove();
-        this.tempPanel = null;
-      }
-    });
-  }
-
-  get DESTROY_EVENT() {
-    return "ViewHiding";
-  }
-
-  closePopup() {
-    if (this.attached) {
-      CustomizableUI.hidePanelForNode(this.viewNode);
-    } else {
-      this.destroy();
-    }
-  }
-}
-
-Object.assign(global, {PanelPopup, ViewPopup});
-
-// Manages tab-specific context data, and dispatching tab select events
-// across all windows.
-global.TabContext = function TabContext(getDefaults, extension) {
-  this.extension = extension;
-  this.getDefaults = getDefaults;
-
-  this.tabData = new WeakMap();
-  this.lastLocation = new WeakMap();
-
-  AllWindowEvents.addListener("progress", this);
-  AllWindowEvents.addListener("TabSelect", this);
-
-  EventEmitter.decorate(this);
-};
-
-TabContext.prototype = {
-  get(tab) {
-    if (!this.tabData.has(tab)) {
-      this.tabData.set(tab, this.getDefaults(tab));
-    }
-
-    return this.tabData.get(tab);
-  },
-
-  clear(tab) {
-    this.tabData.delete(tab);
-  },
-
-  handleEvent(event) {
-    if (event.type == "TabSelect") {
-      let tab = event.target;
-      this.emit("tab-select", tab);
-      this.emit("location-change", tab);
-    }
-  },
-
-  onStateChange(browser, webProgress, request, stateFlags, statusCode) {
-    let flags = Ci.nsIWebProgressListener;
-
-    if (!(~stateFlags & (flags.STATE_IS_WINDOW | flags.STATE_START) ||
-          this.lastLocation.has(browser))) {
-      this.lastLocation.set(browser, request.URI);
-    }
-  },
-
-  onLocationChange(browser, webProgress, request, locationURI, flags) {
-    let gBrowser = browser.ownerGlobal.gBrowser;
-    let lastLocation = this.lastLocation.get(browser);
-    if (browser === gBrowser.selectedBrowser &&
-        !(lastLocation && lastLocation.equalsExceptRef(browser.currentURI))) {
-      let tab = gBrowser.getTabForBrowser(browser);
-      this.emit("location-change", tab, true);
-    }
-    this.lastLocation.set(browser, browser.currentURI);
-  },
-
-  shutdown() {
-    AllWindowEvents.removeListener("progress", this);
-    AllWindowEvents.removeListener("TabSelect", this);
-  },
-};
-
-// Manages tab mappings and permissions for a specific extension.
-function ExtensionTabManager(extension) {
-  this.extension = extension;
-
-  // A mapping of tab objects to the inner window ID the extension currently has
-  // the active tab permission for. The active permission for a given tab is
-  // valid only for the inner window that was active when the permission was
-  // granted. If the tab navigates, the inner window ID changes, and the
-  // permission automatically becomes stale.
-  //
-  // WeakMap[tab => inner-window-id<int>]
-  this.hasTabPermissionFor = new WeakMap();
-}
-
-ExtensionTabManager.prototype = {
-  addActiveTabPermission(tab = TabManager.activeTab) {
-    if (this.extension.hasPermission("activeTab")) {
-      // Note that, unlike Chrome, we don't currently clear this permission with
-      // the tab navigates. If the inner window is revived from BFCache before
-      // we've granted this permission to a new inner window, the extension
-      // maintains its permissions for it.
-      this.hasTabPermissionFor.set(tab, tab.linkedBrowser.innerWindowID);
-    }
-  },
-
-  revokeActiveTabPermission(tab = TabManager.activeTab) {
-    this.hasTabPermissionFor.delete(tab);
-  },
-
-  // Returns true if the extension has the "activeTab" permission for this tab.
-  // This is somewhat more permissive than the generic "tabs" permission, as
-  // checked by |hasTabPermission|, in that it also allows programmatic script
-  // injection without an explicit host permission.
-  hasActiveTabPermission(tab) {
-    // This check is redundant with addTabPermission, but cheap.
-    if (this.extension.hasPermission("activeTab")) {
-      return (this.hasTabPermissionFor.has(tab) &&
-              this.hasTabPermissionFor.get(tab) === tab.linkedBrowser.innerWindowID);
-    }
-    return false;
-  },
-
-  hasTabPermission(tab) {
-    return this.extension.hasPermission("tabs") || this.hasActiveTabPermission(tab);
-  },
-
-  convert(tab) {
-    let window = tab.ownerGlobal;
-    let browser = tab.linkedBrowser;
-
-    let mutedInfo = {muted: tab.muted};
-    if (tab.muteReason === null) {
-      mutedInfo.reason = "user";
-    } else if (tab.muteReason) {
-      mutedInfo.reason = "extension";
-      mutedInfo.extensionId = tab.muteReason;
-    }
-
-    let result = {
-      id: TabManager.getId(tab),
-      index: tab._tPos,
-      windowId: WindowManager.getId(window),
-      selected: tab.selected,
-      highlighted: tab.selected,
-      active: tab.selected,
-      pinned: tab.pinned,
-      status: TabManager.getStatus(tab),
-      incognito: WindowManager.isBrowserPrivate(browser),
-      width: browser.frameLoader.lazyWidth || browser.clientWidth,
-      height: browser.frameLoader.lazyHeight || browser.clientHeight,
-      audible: tab.soundPlaying,
-      mutedInfo,
-    };
-    if (this.extension.hasPermission("cookies")) {
-      result.cookieStoreId = getCookieStoreIdForTab(result, tab);
-    }
-
-    if (this.hasTabPermission(tab)) {
-      result.url = browser.currentURI.spec;
-      let title = browser.contentTitle || tab.label;
-      if (title) {
-        result.title = title;
-      }
-      let icon = window.gBrowser.getIcon(tab);
-      if (icon) {
-        result.favIconUrl = icon;
-      }
-    }
-
-    return result;
-  },
-
-  // Converts tabs returned from SessionStore.getClosedTabData and
-  // SessionStore.getClosedWindowData into API tab objects
-  convertFromSessionStoreClosedData(tab, window) {
-    let result = {
-      sessionId: String(tab.closedId),
-      index: tab.pos ? tab.pos : 0,
-      windowId: WindowManager.getId(window),
-      selected: false,
-      highlighted: false,
-      active: false,
-      pinned: false,
-      incognito: Boolean(tab.state && tab.state.isPrivate),
-    };
-
-    if (this.hasTabPermission(tab)) {
-      let entries = tab.state ? tab.state.entries : tab.entries;
-      result.url = entries[0].url;
-      result.title = entries[0].title;
-      if (tab.image) {
-        result.favIconUrl = tab.image;
-      }
-    }
-
-    return result;
-  },
-
-  getTabs(window) {
-    return Array.from(window.gBrowser.tabs)
-                .filter(tab => !tab.closing)
-                .map(tab => this.convert(tab));
-  },
-};
-
-// Sends the tab and windowId upon request. This is primarily used to support
-// the synchronous `browser.extension.getViews` API.
-let onGetTabAndWindowId = {
-  receiveMessage({name, target, sync}) {
-    let {gBrowser} = target.ownerGlobal;
-    let tab = gBrowser && gBrowser.getTabForBrowser(target);
-    if (tab) {
-      let reply = {
-        tabId: TabManager.getId(tab),
-        windowId: WindowManager.getId(tab.ownerGlobal),
-      };
-      if (sync) {
-        return reply;
-      }
-      target.messageManager.sendAsyncMessage("Extension:SetTabAndWindowId", reply);
-    }
-  },
-};
-/* eslint-disable mozilla/balanced-listeners */
-Services.mm.addMessageListener("Extension:GetTabAndWindowId", onGetTabAndWindowId);
-/* eslint-enable mozilla/balanced-listeners */
-
-
-// Manages global mappings between XUL tabs and extension tab IDs.
-global.TabManager = {
-  _tabs: new WeakMap(),
-  _nextId: 1,
-  _initialized: false,
-
-  // We begin listening for TabOpen and TabClose events once we've started
-  // assigning IDs to tabs, so that we can remap the IDs of tabs which are moved
-  // between windows.
-  initListener() {
-    if (this._initialized) {
-      return;
-    }
-
-    AllWindowEvents.addListener("TabOpen", this);
-    AllWindowEvents.addListener("TabClose", this);
-    WindowListManager.addOpenListener(this.handleWindowOpen.bind(this));
-
-    this._initialized = true;
-  },
-
-  handleEvent(event) {
-    if (event.type == "TabOpen") {
-      let {adoptedTab} = event.detail;
-      if (adoptedTab) {
-        // This tab is being created to adopt a tab from a different window.
-        // Copy the ID from the old tab to the new.
-        let tab = event.target;
-        this._tabs.set(tab, this.getId(adoptedTab));
-
-        tab.linkedBrowser.messageManager.sendAsyncMessage("Extension:SetTabAndWindowId", {
-          windowId: WindowManager.getId(tab.ownerGlobal),
-        });
-      }
-    } else if (event.type == "TabClose") {
-      let {adoptedBy} = event.detail;
-      if (adoptedBy) {
-        // This tab is being closed because it was adopted by a new window.
-        // Copy its ID to the new tab, in case it was created as the first tab
-        // of a new window, and did not have an `adoptedTab` detail when it was
-        // opened.
-        this._tabs.set(adoptedBy, this.getId(event.target));
-
-        adoptedBy.linkedBrowser.messageManager.sendAsyncMessage("Extension:SetTabAndWindowId", {
-          windowId: WindowManager.getId(adoptedBy),
-        });
-      }
-    }
-  },
-
-  handleWindowOpen(window) {
-    if (window.arguments && window.arguments[0] instanceof window.XULElement) {
-      // If the first window argument is a XUL element, it means the
-      // window is about to adopt a tab from another window to replace its
-      // initial tab.
-      let adoptedTab = window.arguments[0];
-
-      this._tabs.set(window.gBrowser.tabs[0], this.getId(adoptedTab));
-    }
-  },
-
-  getId(tab) {
-    if (this._tabs.has(tab)) {
-      return this._tabs.get(tab);
-    }
-    this.initListener();
-
-    let id = this._nextId++;
-    this._tabs.set(tab, id);
-    return id;
-  },
-
-  getBrowserId(browser) {
-    let gBrowser = browser.ownerGlobal.gBrowser;
-    // Some non-browser windows have gBrowser but not
-    // getTabForBrowser!
-    if (gBrowser && gBrowser.getTabForBrowser) {
-      let tab = gBrowser.getTabForBrowser(browser);
-      if (tab) {
-        return this.getId(tab);
-      }
-    }
-    return -1;
-  },
-
-  /**
-   * Returns the XUL <tab> element associated with the given tab ID. If no tab
-   * with the given ID exists, and no default value is provided, an error is
-   * raised, belonging to the scope of the given context.
-   *
-   * @param {integer} tabId
-   *        The ID of the tab to retrieve.
-   * @param {ExtensionContext} context
-   *        The context of the caller.
-   *        This value may be omitted if `default_` is not `undefined`.
-   * @param {*} default_
-   *        The value to return if no tab exists with the given ID.
-   * @returns {Element<tab>}
-   *        A XUL <tab> element.
-   */
-  getTab(tabId, context, default_ = undefined) {
-    // FIXME: Speed this up without leaking memory somehow.
-    for (let window of WindowListManager.browserWindows()) {
-      if (!window.gBrowser) {
-        continue;
-      }
-      for (let tab of window.gBrowser.tabs) {
-        if (this.getId(tab) == tabId) {
-          return tab;
-        }
-      }
-    }
-    if (default_ !== undefined) {
-      return default_;
-    }
-    throw new context.cloneScope.Error(`Invalid tab ID: ${tabId}`);
-  },
-
-  get activeTab() {
-    let window = WindowManager.topWindow;
-    if (window && window.gBrowser) {
-      return window.gBrowser.selectedTab;
-    }
-    return null;
-  },
-
-  getStatus(tab) {
-    return tab.getAttribute("busy") == "true" ? "loading" : "complete";
-  },
-
-  convert(extension, tab) {
-    return TabManager.for(extension).convert(tab);
-  },
-};
-
-// WeakMap[Extension -> ExtensionTabManager]
-let tabManagers = new WeakMap();
-
-// Returns the extension-specific tab manager for the given extension, or
-// creates one if it doesn't already exist.
-TabManager.for = function(extension) {
-  if (!tabManagers.has(extension)) {
-    tabManagers.set(extension, new ExtensionTabManager(extension));
-  }
-  return tabManagers.get(extension);
-};
-
-/* eslint-disable mozilla/balanced-listeners */
-extensions.on("shutdown", (type, extension) => {
-  tabManagers.delete(extension);
-});
-/* eslint-enable mozilla/balanced-listeners */
-
-function memoize(fn) {
-  let weakMap = new DefaultWeakMap(fn);
-  return weakMap.get.bind(weakMap);
-}
-
-// Manages mapping between XUL windows and extension window IDs.
-global.WindowManager = {
-  _windows: new WeakMap(),
-  _nextId: 0,
-
-  // Note: These must match the values in windows.json.
-  WINDOW_ID_NONE: -1,
-  WINDOW_ID_CURRENT: -2,
-
-  get topWindow() {
-    return Services.wm.getMostRecentWindow("navigator:browser");
-  },
-
-  windowType(window) {
-    // TODO: Make this work.
-
-    let {chromeFlags} = window.QueryInterface(Ci.nsIInterfaceRequestor)
-                              .getInterface(Ci.nsIDocShell)
-                              .treeOwner.QueryInterface(Ci.nsIInterfaceRequestor)
-                              .getInterface(Ci.nsIXULWindow);
-
-    if (chromeFlags & Ci.nsIWebBrowserChrome.CHROME_OPENAS_DIALOG) {
-      return "popup";
-    }
-
-    return "normal";
-  },
-
-  updateGeometry(window, options) {
-    if (options.left !== null || options.top !== null) {
-      let left = options.left !== null ? options.left : window.screenX;
-      let top = options.top !== null ? options.top : window.screenY;
-      window.moveTo(left, top);
-    }
-
-    if (options.width !== null || options.height !== null) {
-      let width = options.width !== null ? options.width : window.outerWidth;
-      let height = options.height !== null ? options.height : window.outerHeight;
-      window.resizeTo(width, height);
-    }
-  },
-
-  isBrowserPrivate: memoize(browser => {
-    return PrivateBrowsingUtils.isBrowserPrivate(browser);
-  }),
-
-  getId(window) {
-    if (this._windows.has(window)) {
-      return this._windows.get(window);
-    }
-    let id = this._nextId++;
-    this._windows.set(window, id);
-    return id;
-  },
-
-  getWindow(id, context) {
-    if (id == this.WINDOW_ID_CURRENT) {
-      return currentWindow(context);
-    }
-
-    for (let window of WindowListManager.browserWindows(true)) {
-      if (this.getId(window) == id) {
-        return window;
-      }
-    }
-    return null;
-  },
-
-  getState(window) {
-    const STATES = {
-      [window.STATE_MAXIMIZED]: "maximized",
-      [window.STATE_MINIMIZED]: "minimized",
-      [window.STATE_NORMAL]: "normal",
-    };
-    let state = STATES[window.windowState];
-    if (window.fullScreen) {
-      state = "fullscreen";
-    }
-    return state;
-  },
-
-  setState(window, state) {
-    if (state != "fullscreen" && window.fullScreen) {
-      window.fullScreen = false;
-    }
-
-    switch (state) {
-      case "maximized":
-        window.maximize();
-        break;
-
-      case "minimized":
-      case "docked":
-        window.minimize();
-        break;
-
-      case "normal":
-        // Restore sometimes returns the window to its previous state, rather
-        // than to the "normal" state, so it may need to be called anywhere from
-        // zero to two times.
-        window.restore();
-        if (window.windowState != window.STATE_NORMAL) {
-          window.restore();
-        }
-        if (window.windowState != window.STATE_NORMAL) {
-          // And on OS-X, where normal vs. maximized is basically a heuristic,
-          // we need to cheat.
-          window.sizeToContent();
-        }
-        break;
-
-      case "fullscreen":
-        window.fullScreen = true;
-        break;
-
-      default:
-        throw new Error(`Unexpected window state: ${state}`);
-    }
-  },
-
-  convert(extension, window, getInfo) {
-    let xulWindow = window.QueryInterface(Ci.nsIInterfaceRequestor)
-                          .getInterface(Ci.nsIDocShell)
-                          .treeOwner.QueryInterface(Ci.nsIInterfaceRequestor)
-                          .getInterface(Ci.nsIXULWindow);
-
-    let result = {
-      id: this.getId(window),
-      focused: window.document.hasFocus(),
-      top: window.screenY,
-      left: window.screenX,
-      width: window.outerWidth,
-      height: window.outerHeight,
-      incognito: PrivateBrowsingUtils.isWindowPrivate(window),
-      type: this.windowType(window),
-      state: this.getState(window),
-      alwaysOnTop: xulWindow.zLevel >= Ci.nsIXULWindow.raisedZ,
-    };
-
-    if (getInfo && getInfo.populate) {
-      result.tabs = TabManager.for(extension).getTabs(window);
-    }
-
-    return result;
-  },
-
-  // Converts windows returned from SessionStore.getClosedWindowData
-  // into API window objects
-  convertFromSessionStoreClosedData(window, extension) {
-    let result = {
-      sessionId: String(window.closedId),
-      focused: false,
-      incognito: false,
-      type: "normal", // this is always "normal" for a closed window
-      state: this.getState(window),
-      alwaysOnTop: false,
-    };
-
-    if (window.tabs.length) {
-      result.tabs = [];
-      window.tabs.forEach((tab, index) => {
-        result.tabs.push(TabManager.for(extension).convertFromSessionStoreClosedData(tab, window, index));
-      });
-    }
-
-    return result;
-  },
-};
-
-// Manages listeners for window opening and closing. A window is
-// considered open when the "load" event fires on it. A window is
-// closed when a "domwindowclosed" notification fires for it.
-global.WindowListManager = {
-  _openListeners: new Set(),
-  _closeListeners: new Set(),
-
-  // Returns an iterator for all browser windows. Unless |includeIncomplete| is
-  // true, only fully-loaded windows are returned.
-  * browserWindows(includeIncomplete = false) {
-    // The window type parameter is only available once the window's document
-    // element has been created. This means that, when looking for incomplete
-    // browser windows, we need to ignore the type entirely for windows which
-    // haven't finished loading, since we would otherwise skip browser windows
-    // in their early loading stages.
-    // This is particularly important given that the "domwindowcreated" event
-    // fires for browser windows when they're in that in-between state, and just
-    // before we register our own "domwindowcreated" listener.
-
-    let e = Services.wm.getEnumerator("");
-    while (e.hasMoreElements()) {
-      let window = e.getNext();
-
-      let ok = includeIncomplete;
-      if (window.document.readyState == "complete") {
-        ok = window.document.documentElement.getAttribute("windowtype") == "navigator:browser";
-      }
-
-      if (ok) {
-        yield window;
-      }
-    }
-  },
-
-  addOpenListener(listener) {
-    if (this._openListeners.size == 0 && this._closeListeners.size == 0) {
-      Services.ww.registerNotification(this);
-    }
-    this._openListeners.add(listener);
-
-    for (let window of this.browserWindows(true)) {
-      if (window.document.readyState != "complete") {
-        window.addEventListener("load", this);
-      }
-    }
-  },
-
-  removeOpenListener(listener) {
-    this._openListeners.delete(listener);
-    if (this._openListeners.size == 0 && this._closeListeners.size == 0) {
-      Services.ww.unregisterNotification(this);
-    }
-  },
-
-  addCloseListener(listener) {
-    if (this._openListeners.size == 0 && this._closeListeners.size == 0) {
-      Services.ww.registerNotification(this);
-    }
-    this._closeListeners.add(listener);
-  },
-
-  removeCloseListener(listener) {
-    this._closeListeners.delete(listener);
-    if (this._openListeners.size == 0 && this._closeListeners.size == 0) {
-      Services.ww.unregisterNotification(this);
-    }
-  },
-
-  handleEvent(event) {
-    event.currentTarget.removeEventListener(event.type, this);
-    let window = event.target.defaultView;
-    if (window.document.documentElement.getAttribute("windowtype") != "navigator:browser") {
-      return;
-    }
-
-    for (let listener of this._openListeners) {
-      listener(window);
-    }
-  },
-
-  observe(window, topic, data) {
-    if (topic == "domwindowclosed") {
-      if (window.document.documentElement.getAttribute("windowtype") != "navigator:browser") {
-        return;
-      }
-
-      window.removeEventListener("load", this);
-      for (let listener of this._closeListeners) {
-        listener(window);
-      }
-    } else {
-      window.addEventListener("load", this);
-    }
-  },
-};
-
-// Provides a facility to listen for DOM events across all XUL windows.
-global.AllWindowEvents = {
-  _listeners: new Map(),
-
-  // If |type| is a normal event type, invoke |listener| each time
-  // that event fires in any open window. If |type| is "progress", add
-  // a web progress listener that covers all open windows.
-  addListener(type, listener) {
-    if (type == "domwindowopened") {
-      return WindowListManager.addOpenListener(listener);
-    } else if (type == "domwindowclosed") {
-      return WindowListManager.addCloseListener(listener);
-    }
-
-    if (this._listeners.size == 0) {
-      WindowListManager.addOpenListener(this.openListener);
-    }
-
-    if (!this._listeners.has(type)) {
-      this._listeners.set(type, new Set());
-    }
-    let list = this._listeners.get(type);
-    list.add(listener);
-
-    // Register listener on all existing windows.
-    for (let window of WindowListManager.browserWindows()) {
-      this.addWindowListener(window, type, listener);
-    }
-  },
-
-  removeListener(eventType, listener) {
-    if (eventType == "domwindowopened") {
-      return WindowListManager.removeOpenListener(listener);
-    } else if (eventType == "domwindowclosed") {
-      return WindowListManager.removeCloseListener(listener);
-    }
-
-    let listeners = this._listeners.get(eventType);
-    listeners.delete(listener);
-    if (listeners.size == 0) {
-      this._listeners.delete(eventType);
-      if (this._listeners.size == 0) {
-        WindowListManager.removeOpenListener(this.openListener);
-      }
-    }
-
-    // Unregister listener from all existing windows.
-    let useCapture = eventType === "focus" || eventType === "blur";
-    for (let window of WindowListManager.browserWindows()) {
-      if (eventType == "progress") {
-        window.gBrowser.removeTabsProgressListener(listener);
-      } else {
-        window.removeEventListener(eventType, listener, useCapture);
-      }
-    }
-  },
-
-  /* eslint-disable mozilla/balanced-listeners */
-  addWindowListener(window, eventType, listener) {
-    let useCapture = eventType === "focus" || eventType === "blur";
-
-    if (eventType == "progress") {
-      window.gBrowser.addTabsProgressListener(listener);
-    } else {
-      window.addEventListener(eventType, listener, useCapture);
-    }
-  },
-  /* eslint-enable mozilla/balanced-listeners */
-
-  // Runs whenever the "load" event fires for a new window.
-  openListener(window) {
-    for (let [eventType, listeners] of AllWindowEvents._listeners) {
-      for (let listener of listeners) {
-        this.addWindowListener(window, eventType, listener);
-      }
-    }
-  },
-};
-
-AllWindowEvents.openListener = AllWindowEvents.openListener.bind(AllWindowEvents);
-
-// Subclass of EventManager where we just need to call
-// add/removeEventListener on each XUL window.
-global.WindowEventManager = function(context, name, event, listener) {
-  EventManager.call(this, context, name, fire => {
-    let listener2 = (...args) => listener(fire, ...args);
-    AllWindowEvents.addListener(event, listener2);
-    return () => {
-      AllWindowEvents.removeListener(event, listener2);
-    };
-  });
-};
-
-WindowEventManager.prototype = Object.create(EventManager.prototype);
diff --git a/application/basilisk/components/webextensions/ext-windows.js b/application/basilisk/components/webextensions/ext-windows.js
deleted file mode 100644
index 5956ae15b..000000000
--- a/application/basilisk/components/webextensions/ext-windows.js
+++ /dev/null
@@ -1,231 +0,0 @@
-/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set sts=2 sw=2 et tw=80: */
-"use strict";
-
-XPCOMUtils.defineLazyServiceGetter(this, "aboutNewTabService",
-                                   "@mozilla.org/browser/aboutnewtab-service;1",
-                                   "nsIAboutNewTabService");
-XPCOMUtils.defineLazyModuleGetter(this, "AppConstants",
-                                  "resource://gre/modules/AppConstants.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
-                                  "resource://gre/modules/PrivateBrowsingUtils.jsm");
-
-Cu.import("resource://gre/modules/ExtensionUtils.jsm");
-var {
-  EventManager,
-  promiseObserved,
-} = ExtensionUtils;
-
-function onXULFrameLoaderCreated({target}) {
-  target.messageManager.sendAsyncMessage("AllowScriptsToClose", {});
-}
-
-extensions.registerSchemaAPI("windows", "addon_parent", context => {
-  let {extension} = context;
-  return {
-    windows: {
-      onCreated:
-      new WindowEventManager(context, "windows.onCreated", "domwindowopened", (fire, window) => {
-        fire(WindowManager.convert(extension, window));
-      }).api(),
-
-      onRemoved:
-      new WindowEventManager(context, "windows.onRemoved", "domwindowclosed", (fire, window) => {
-        fire(WindowManager.getId(window));
-      }).api(),
-
-      onFocusChanged: new EventManager(context, "windows.onFocusChanged", fire => {
-        // Keep track of the last windowId used to fire an onFocusChanged event
-        let lastOnFocusChangedWindowId;
-
-        let listener = event => {
-          // Wait a tick to avoid firing a superfluous WINDOW_ID_NONE
-          // event when switching focus between two Firefox windows.
-          Promise.resolve().then(() => {
-            let window = Services.focus.activeWindow;
-            let windowId = window ? WindowManager.getId(window) : WindowManager.WINDOW_ID_NONE;
-            if (windowId !== lastOnFocusChangedWindowId) {
-              fire(windowId);
-              lastOnFocusChangedWindowId = windowId;
-            }
-          });
-        };
-        AllWindowEvents.addListener("focus", listener);
-        AllWindowEvents.addListener("blur", listener);
-        return () => {
-          AllWindowEvents.removeListener("focus", listener);
-          AllWindowEvents.removeListener("blur", listener);
-        };
-      }).api(),
-
-      get: function(windowId, getInfo) {
-        let window = WindowManager.getWindow(windowId, context);
-        return Promise.resolve(WindowManager.convert(extension, window, getInfo));
-      },
-
-      getCurrent: function(getInfo) {
-        let window = currentWindow(context);
-        return Promise.resolve(WindowManager.convert(extension, window, getInfo));
-      },
-
-      getLastFocused: function(getInfo) {
-        let window = WindowManager.topWindow;
-        return Promise.resolve(WindowManager.convert(extension, window, getInfo));
-      },
-
-      getAll: function(getInfo) {
-        let windows = Array.from(WindowListManager.browserWindows(),
-                                 window => WindowManager.convert(extension, window, getInfo));
-        return Promise.resolve(windows);
-      },
-
-      create: function(createData) {
-        let needResize = (createData.left !== null || createData.top !== null ||
-                          createData.width !== null || createData.height !== null);
-
-        if (needResize) {
-          if (createData.state !== null && createData.state != "normal") {
-            return Promise.reject({message: `"state": "${createData.state}" may not be combined with "left", "top", "width", or "height"`});
-          }
-          createData.state = "normal";
-        }
-
-        function mkstr(s) {
-          let result = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString);
-          result.data = s;
-          return result;
-        }
-
-        let args = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
-
-        if (createData.tabId !== null) {
-          if (createData.url !== null) {
-            return Promise.reject({message: "`tabId` may not be used in conjunction with `url`"});
-          }
-
-          if (createData.allowScriptsToClose) {
-            return Promise.reject({message: "`tabId` may not be used in conjunction with `allowScriptsToClose`"});
-          }
-
-          let tab = TabManager.getTab(createData.tabId, context);
-
-          // Private browsing tabs can only be moved to private browsing
-          // windows.
-          let incognito = PrivateBrowsingUtils.isBrowserPrivate(tab.linkedBrowser);
-          if (createData.incognito !== null && createData.incognito != incognito) {
-            return Promise.reject({message: "`incognito` property must match the incognito state of tab"});
-          }
-          createData.incognito = incognito;
-
-          args.appendElement(tab, /* weak = */ false);
-        } else if (createData.url !== null) {
-          if (Array.isArray(createData.url)) {
-            let array = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
-            for (let url of createData.url) {
-              array.appendElement(mkstr(url), /* weak = */ false);
-            }
-            args.appendElement(array, /* weak = */ false);
-          } else {
-            args.appendElement(mkstr(createData.url), /* weak = */ false);
-          }
-        } else {
-          args.appendElement(mkstr(aboutNewTabService.newTabURL), /* weak = */ false);
-        }
-
-        let features = ["chrome"];
-
-        if (createData.type === null || createData.type == "normal") {
-          features.push("dialog=no", "all");
-        } else {
-          // All other types create "popup"-type windows by default.
-          features.push("dialog", "resizable", "minimizable", "centerscreen", "titlebar", "close");
-        }
-
-        if (createData.incognito !== null) {
-          if (createData.incognito) {
-            features.push("private");
-          } else {
-            features.push("non-private");
-          }
-        }
-
-        let {allowScriptsToClose, url} = createData;
-        if (allowScriptsToClose === null) {
-          allowScriptsToClose = typeof url === "string" && url.startsWith("moz-extension://");
-        }
-
-        let window = Services.ww.openWindow(null, "chrome://browser/content/browser.xul", "_blank",
-                                            features.join(","), args);
-
-        WindowManager.updateGeometry(window, createData);
-
-        // TODO: focused, type
-
-        return new Promise(resolve => {
-          window.addEventListener("load", function listener() {
-            window.removeEventListener("load", listener);
-            if (["maximized", "normal"].includes(createData.state)) {
-              window.document.documentElement.setAttribute("sizemode", createData.state);
-            }
-            resolve(promiseObserved("browser-delayed-startup-finished", win => win == window));
-          });
-        }).then(() => {
-          // Some states only work after delayed-startup-finished
-          if (["minimized", "fullscreen", "docked"].includes(createData.state)) {
-            WindowManager.setState(window, createData.state);
-          }
-          if (allowScriptsToClose) {
-            for (let {linkedBrowser} of window.gBrowser.tabs) {
-              onXULFrameLoaderCreated({target: linkedBrowser});
-              linkedBrowser.addEventListener( // eslint-disable-line mozilla/balanced-listeners
-                                             "XULFrameLoaderCreated", onXULFrameLoaderCreated);
-            }
-          }
-          return WindowManager.convert(extension, window, {populate: true});
-        });
-      },
-
-      update: function(windowId, updateInfo) {
-        if (updateInfo.state !== null && updateInfo.state != "normal") {
-          if (updateInfo.left !== null || updateInfo.top !== null ||
-              updateInfo.width !== null || updateInfo.height !== null) {
-            return Promise.reject({message: `"state": "${updateInfo.state}" may not be combined with "left", "top", "width", or "height"`});
-          }
-        }
-
-        let window = WindowManager.getWindow(windowId, context);
-        if (updateInfo.focused) {
-          Services.focus.activeWindow = window;
-        }
-
-        if (updateInfo.state !== null) {
-          WindowManager.setState(window, updateInfo.state);
-        }
-
-        if (updateInfo.drawAttention) {
-          // Bug 1257497 - Firefox can't cancel attention actions.
-          window.getAttention();
-        }
-
-        WindowManager.updateGeometry(window, updateInfo);
-
-        // TODO: All the other properties, focused=false...
-
-        return Promise.resolve(WindowManager.convert(extension, window));
-      },
-
-      remove: function(windowId) {
-        let window = WindowManager.getWindow(windowId, context);
-        window.close();
-
-        return new Promise(resolve => {
-          let listener = () => {
-            AllWindowEvents.removeListener("domwindowclosed", listener);
-            resolve();
-          };
-          AllWindowEvents.addListener("domwindowclosed", listener);
-        });
-      },
-    },
-  };
-});
diff --git a/application/basilisk/components/webextensions/extension-mac-panel.css b/application/basilisk/components/webextensions/extension-mac-panel.css
deleted file mode 100644
index 2e9ed6bdb..000000000
--- a/application/basilisk/components/webextensions/extension-mac-panel.css
+++ /dev/null
@@ -1,3 +0,0 @@
-body {
-  border-radius: 3.5px;
-}
diff --git a/application/basilisk/components/webextensions/extension-mac.css b/application/basilisk/components/webextensions/extension-mac.css
deleted file mode 100644
index 49cd3b359..000000000
--- a/application/basilisk/components/webextensions/extension-mac.css
+++ /dev/null
@@ -1,11 +0,0 @@
-button,
-select,
-input[type="checkbox"] + label::before {
-  border-radius: 4px;
-}
-
-.panel-section-footer {
-  border-bottom-left-radius: 4px;
-  border-bottom-right-radius: 4px;
-  overflow: hidden;
-}
diff --git a/application/basilisk/components/webextensions/extension-win-panel.css b/application/basilisk/components/webextensions/extension-win-panel.css
deleted file mode 100644
index 9da6da14c..000000000
--- a/application/basilisk/components/webextensions/extension-win-panel.css
+++ /dev/null
@@ -1,5 +0,0 @@
-@media (-moz-os-version: windows-win7) {
-  body {
-    border-radius: 4px;
-  }
-}
diff --git a/application/basilisk/components/webextensions/extension.css b/application/basilisk/components/webextensions/extension.css
deleted file mode 100644
index 6b59033e3..000000000
--- a/application/basilisk/components/webextensions/extension.css
+++ /dev/null
@@ -1,572 +0,0 @@
-/* stylelint-disable property-no-vendor-prefix */
-/* stylelint-disable property-no-vendor-prefix */
-/* Base */
-button,
-select,
-option,
-input {
-  -moz-appearance: none;
-}
-
-/* Variables */
-html,
-body {
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-.checkboxItem.focused input[type="checkbox"]:checked + label::before {
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-  height: 24px;
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-/* Interactive States */
-button:hover:not(.pressed):not(.disabled):not(.focused),
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-  background-color: #ebebeb;
-  border: 1px solid #b1b1b1;
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-  box-shadow: 0 0 0 2px rgba(97, 181, 255, 0.75);
-}
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-input[type="text"]:focus,
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diff --git a/application/basilisk/components/webextensions/extension.svg b/application/basilisk/components/webextensions/extension.svg
deleted file mode 100644
index a16455253..000000000
--- a/application/basilisk/components/webextensions/extension.svg
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
-     width="64" height="64" viewBox="0 0 64 64">
-  <defs>
-    <style>
-      .style-puzzle-piece {
-        fill: url('#gradient-linear-puzzle-piece');
-      }
-    </style>
-    <linearGradient id="gradient-linear-puzzle-piece" x1="0%" y1="0%" x2="0%" y2="100%">
-      <stop offset="0%" stop-color="#66cc52" stop-opacity="1"/>
-      <stop offset="100%" stop-color="#60bf4c" stop-opacity="1"/>
-    </linearGradient>
-  </defs>
-  <path class="style-puzzle-piece" d="M42,62c2.2,0,4-1.8,4-4l0-14.2c0,0,0.4-3.7,2.8-3.7c2.4,0,2.2,3.9,6.7,3.9c2.3,0,6.2-1.2,6.2-8.2 c0-7-3.9-7.9-6.2-7.9c-4.5,0-4.3,3.7-6.7,3.7c-2.4,0-2.8-3.8-2.8-3.8V22c0-2.2-1.8-4-4-4H31.5c0,0-3.4-0.6-3.4-3 c0-2.4,3.8-2.6,3.8-7.1c0-2.3-1.3-5.9-8.3-5.9s-8,3.6-8,5.9c0,4.5,3.4,4.7,3.4,7.1c0,2.4-3.4,3-3.4,3H6c-2.2,0-4,1.8-4,4l0,7.8 c0,0-0.4,6,4.4,6c3.1,0,3.2-4.1,7.3-4.1c2,0,4,1.9,4,6c0,4.2-2,6.3-4,6.3c-4,0-4.2-4.1-7.3-4.1c-4.8,0-4.4,5.8-4.4,5.8L2,58 c0,2.2,1.8,4,4,4H19c0,0,6.3,0.4,6.3-4.4c0-3.1-4-3.6-4-7.7c0-2,2.2-4.5,6.4-4.5c4.2,0,6.6,2.5,6.6,4.5c0,4-3.9,4.6-3.9,7.7 c0,4.9,6.3,4.4,6.3,4.4H42z"/>
-</svg>
diff --git a/application/basilisk/components/webextensions/extensions-browser.manifest b/application/basilisk/components/webextensions/extensions-browser.manifest
deleted file mode 100644
index ed5cca813..000000000
--- a/application/basilisk/components/webextensions/extensions-browser.manifest
+++ /dev/null
@@ -1,31 +0,0 @@
-# scripts
-category webextension-scripts bookmarks chrome://browser/content/ext-bookmarks.js
-category webextension-scripts browserAction chrome://browser/content/ext-browserAction.js
-category webextension-scripts commands chrome://browser/content/ext-commands.js
-category webextension-scripts contextMenus chrome://browser/content/ext-contextMenus.js
-category webextension-scripts desktop-runtime chrome://browser/content/ext-desktop-runtime.js
-category webextension-scripts history chrome://browser/content/ext-history.js
-category webextension-scripts omnibox chrome://browser/content/ext-omnibox.js
-category webextension-scripts pageAction chrome://browser/content/ext-pageAction.js
-category webextension-scripts sessions chrome://browser/content/ext-sessions.js
-category webextension-scripts tabs chrome://browser/content/ext-tabs.js
-category webextension-scripts utils chrome://browser/content/ext-utils.js
-category webextension-scripts windows chrome://browser/content/ext-windows.js
-
-# scripts that must run in the same process as addon code.
-category webextension-scripts-addon contextMenus chrome://browser/content/ext-c-contextMenus.js
-category webextension-scripts-addon omnibox chrome://browser/content/ext-c-omnibox.js
-category webextension-scripts-addon tabs chrome://browser/content/ext-c-tabs.js
-
-# schemas
-category webextension-schemas bookmarks chrome://browser/content/schemas/bookmarks.json
-category webextension-schemas browser_action chrome://browser/content/schemas/browser_action.json
-category webextension-schemas commands chrome://browser/content/schemas/commands.json
-category webextension-schemas context_menus chrome://browser/content/schemas/context_menus.json
-category webextension-schemas context_menus_internal chrome://browser/content/schemas/context_menus_internal.json
-category webextension-schemas history chrome://browser/content/schemas/history.json
-category webextension-schemas omnibox chrome://browser/content/schemas/omnibox.json
-category webextension-schemas page_action chrome://browser/content/schemas/page_action.json
-category webextension-schemas sessions chrome://browser/content/schemas/sessions.json
-category webextension-schemas tabs chrome://browser/content/schemas/tabs.json
-category webextension-schemas windows chrome://browser/content/schemas/windows.json
diff --git a/application/basilisk/components/webextensions/jar.mn b/application/basilisk/components/webextensions/jar.mn
deleted file mode 100644
index a7b506ec4..000000000
--- a/application/basilisk/components/webextensions/jar.mn
+++ /dev/null
@@ -1,29 +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/.
-
-browser.jar:
-    content/browser/extension.css
-#ifdef XP_MACOSX
-    content/browser/extension-mac.css
-    content/browser/extension-mac-panel.css
-#endif
-#ifdef XP_WIN
-    content/browser/extension-win-panel.css
-#endif
-    content/browser/extension.svg
-    content/browser/ext-bookmarks.js
-    content/browser/ext-browserAction.js
-    content/browser/ext-commands.js
-    content/browser/ext-contextMenus.js
-    content/browser/ext-desktop-runtime.js
-    content/browser/ext-history.js
-    content/browser/ext-omnibox.js
-    content/browser/ext-pageAction.js
-    content/browser/ext-sessions.js
-    content/browser/ext-tabs.js
-    content/browser/ext-utils.js
-    content/browser/ext-windows.js
-    content/browser/ext-c-contextMenus.js
-    content/browser/ext-c-omnibox.js
-    content/browser/ext-c-tabs.js
diff --git a/application/basilisk/components/webextensions/moz.build b/application/basilisk/components/webextensions/moz.build
deleted file mode 100644
index 116e90415..000000000
--- a/application/basilisk/components/webextensions/moz.build
+++ /dev/null
@@ -1,14 +0,0 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-JAR_MANIFESTS += ['jar.mn']
-
-EXTRA_COMPONENTS += [
-    'extensions-browser.manifest',
-]
-
-DIRS += ['schemas']
-
diff --git a/application/basilisk/components/webextensions/schemas/LICENSE b/application/basilisk/components/webextensions/schemas/LICENSE
deleted file mode 100644
index 9314092fd..000000000
--- a/application/basilisk/components/webextensions/schemas/LICENSE
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//    * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//    * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//    * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/application/basilisk/components/webextensions/schemas/bookmarks.json b/application/basilisk/components/webextensions/schemas/bookmarks.json
deleted file mode 100644
index fb74c633e..000000000
--- a/application/basilisk/components/webextensions/schemas/bookmarks.json
+++ /dev/null
@@ -1,568 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "manifest",
-    "types": [
-      {
-        "$extend": "Permission",
-        "choices": [{
-          "type": "string",
-          "enum": [
-            "bookmarks"
-          ]
-        }]
-      }
-    ]
-  },
-  {
-    "namespace": "bookmarks",
-    "description": "Use the <code>browser.bookmarks</code> API to create, organize, and otherwise manipulate bookmarks. Also see $(topic:override)[Override Pages], which you can use to create a custom Bookmark Manager page.",
-    "permissions": ["bookmarks"],
-    "types": [
-      {
-        "id": "BookmarkTreeNodeUnmodifiable",
-        "type": "string",
-        "enum": ["managed"],
-        "description": "Indicates the reason why this node is unmodifiable. The <var>managed</var> value indicates that this node was configured by the system administrator or by the custodian of a supervised user. Omitted if the node can be modified by the user and the extension (default)."
-      },
-      {
-        "id": "BookmarkTreeNode",
-        "type": "object",
-        "description": "A node (either a bookmark or a folder) in the bookmark tree.  Child nodes are ordered within their parent folder.",
-        "properties": {
-          "id": {
-            "type": "string",
-            "description": "The unique identifier for the node. IDs are unique within the current profile, and they remain valid even after the browser is restarted."
-          },
-          "parentId": {
-            "type": "string",
-            "optional": true,
-            "description": "The <code>id</code> of the parent folder.  Omitted for the root node."
-          },
-          "index": {
-            "type": "integer",
-            "optional": true,
-            "description": "The 0-based position of this node within its parent folder."
-          },
-          "url": {
-            "type": "string",
-            "optional": true,
-            "description": "The URL navigated to when a user clicks the bookmark. Omitted for folders."
-          },
-          "title": {
-            "type": "string",
-            "description": "The text displayed for the node."
-          },
-          "dateAdded": {
-            "type": "number",
-            "optional": true,
-            "description": "When this node was created, in milliseconds since the epoch (<code>new Date(dateAdded)</code>)."
-          },
-          "dateGroupModified": {
-            "type": "number",
-            "optional": true,
-            "description": "When the contents of this folder last changed, in milliseconds since the epoch."
-          },
-          "unmodifiable": {
-            "$ref": "BookmarkTreeNodeUnmodifiable",
-            "optional": true,
-            "description": "Indicates the reason why this node is unmodifiable. The <var>managed</var> value indicates that this node was configured by the system administrator or by the custodian of a supervised user. Omitted if the node can be modified by the user and the extension (default)."
-          },
-          "children": {
-            "type": "array",
-            "optional": true,
-            "items": { "$ref": "BookmarkTreeNode" },
-            "description": "An ordered list of children of this node."
-          }
-        }
-      },
-      {
-        "id": "CreateDetails",
-        "description": "Object passed to the create() function.",
-        "type": "object",
-        "properties": {
-          "parentId": {
-            "type": "string",
-            "optional": true,
-            "description": "Defaults to the Other Bookmarks folder."
-          },
-          "index": {
-            "type": "integer",
-            "minimum": 0,
-            "optional": true
-          },
-          "title": {
-            "type": "string",
-            "optional": true
-          },
-          "url": {
-            "type": "string",
-            "optional": true
-          }
-        }
-      }
-    ],
-    "functions": [
-      {
-        "name": "get",
-        "type": "function",
-        "description": "Retrieves the specified BookmarkTreeNode(s).",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "idOrIdList",
-            "description": "A single string-valued id, or an array of string-valued ids",
-            "choices": [
-              {
-                "type": "string"
-              },
-              {
-                "type": "array",
-                "items": {
-                  "type": "string"
-                },
-                "minItems": 1
-              }
-            ]
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "results",
-                "type": "array",
-                "items": { "$ref": "BookmarkTreeNode" }
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getChildren",
-        "type": "function",
-        "description": "Retrieves the children of the specified BookmarkTreeNode id.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id"
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "results",
-                "type": "array",
-                "items": { "$ref": "BookmarkTreeNode"}
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getRecent",
-        "type": "function",
-        "description": "Retrieves the recently added bookmarks.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "minimum": 1,
-            "name": "numberOfItems",
-            "description": "The maximum number of items to return."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "results",
-                "type": "array",
-                "items": { "$ref": "BookmarkTreeNode" }
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getTree",
-        "type": "function",
-        "description": "Retrieves the entire Bookmarks hierarchy.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "results",
-                "type": "array",
-                "items": { "$ref": "BookmarkTreeNode" }
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getSubTree",
-        "type": "function",
-        "description": "Retrieves part of the Bookmarks hierarchy, starting at the specified node.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id",
-            "description": "The ID of the root of the subtree to retrieve."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "results",
-                "type": "array",
-                "items": { "$ref": "BookmarkTreeNode" }
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "search",
-        "type": "function",
-        "description": "Searches for BookmarkTreeNodes matching the given query. Queries specified with an object produce BookmarkTreeNodes matching all specified properties.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "query",
-            "description": "Either a string of words and quoted phrases that are matched against bookmark URLs and titles, or an object. If an object, the properties <code>query</code>, <code>url</code>, and <code>title</code> may be specified and bookmarks matching all specified properties will be produced.",
-            "choices": [
-              {
-                "type": "string",
-                "description": "A string of words and quoted phrases that are matched against bookmark URLs and titles."
-              },
-              {
-                "type": "object",
-                "description": "An object specifying properties and values to match when searching. Produces bookmarks matching all properties.",
-                "properties": {
-                  "query": {
-                    "type": "string",
-                    "optional": true,
-                    "description": "A string of words and quoted phrases that are matched against bookmark URLs and titles."
-                  },
-                  "url": {
-                    "type": "string",
-                    "format": "url",
-                    "optional": true,
-                    "description": "The URL of the bookmark; matches verbatim. Note that folders have no URL."
-                  },
-                  "title": {
-                    "type": "string",
-                    "optional": true,
-                    "description": "The title of the bookmark; matches verbatim."
-                  }
-                }
-              }
-            ]
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "results",
-                "type": "array",
-                "items": { "$ref": "BookmarkTreeNode" }
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "create",
-        "type": "function",
-        "description": "Creates a bookmark or folder under the specified parentId.  If url is NULL or missing, it will be a folder.",
-        "async": "callback",
-        "parameters": [
-          {
-            "$ref": "CreateDetails",
-            "name": "bookmark"
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "result",
-                "$ref": "BookmarkTreeNode"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "move",
-        "type": "function",
-        "description": "Moves the specified BookmarkTreeNode to the provided location.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id"
-          },
-          {
-            "type": "object",
-            "name": "destination",
-            "properties": {
-              "parentId": {
-                "type": "string",
-                "optional": true
-              },
-              "index": {
-                "type": "integer",
-                "minimum": 0,
-                "optional": true
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "result",
-                "$ref": "BookmarkTreeNode"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "update",
-        "type": "function",
-        "description": "Updates the properties of a bookmark or folder. Specify only the properties that you want to change; unspecified properties will be left unchanged.  <b>Note:</b> Currently, only 'title' and 'url' are supported.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id"
-          },
-          {
-            "type": "object",
-            "name": "changes",
-            "properties": {
-              "title": {
-                "type": "string",
-                "optional": true
-              },
-              "url": {
-                "type": "string",
-                "optional": true
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "result",
-                "$ref": "BookmarkTreeNode"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "remove",
-        "type": "function",
-        "description": "Removes a bookmark or an empty bookmark folder.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id"
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "removeTree",
-        "type": "function",
-        "description": "Recursively removes a bookmark folder.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id"
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "import",
-        "unsupported": true,
-        "type": "function",
-        "description": "Imports bookmarks from an html bookmark file",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "export",
-        "unsupported": true,
-        "type": "function",
-        "description": "Exports bookmarks to an html bookmark file",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      }
-    ],
-    "events": [
-      {
-        "name": "onCreated",
-        "type": "function",
-        "description": "Fired when a bookmark or folder is created.",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id"
-          },
-          {
-            "$ref": "BookmarkTreeNode",
-            "name": "bookmark"
-          }
-        ]
-      },
-      {
-        "name": "onRemoved",
-        "type": "function",
-        "description": "Fired when a bookmark or folder is removed.  When a folder is removed recursively, a single notification is fired for the folder, and none for its contents.",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id"
-          },
-          {
-            "type": "object",
-            "name": "removeInfo",
-            "properties": {
-              "parentId": { "type": "string" },
-              "index": { "type": "integer" },
-              "node": { "$ref": "BookmarkTreeNode" }
-            }
-          }
-        ]
-      },
-      {
-        "name": "onChanged",
-        "type": "function",
-        "description": "Fired when a bookmark or folder changes.  <b>Note:</b> Currently, only title and url changes trigger this.",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id"
-          },
-          {
-            "type": "object",
-            "name": "changeInfo",
-            "properties": {
-              "title": { "type": "string" },
-              "url": {
-                "type": "string",
-                "optional": true
-              }
-            }
-          }
-        ]
-      },
-      {
-        "name": "onMoved",
-        "type": "function",
-        "description": "Fired when a bookmark or folder is moved to a different parent folder.",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id"
-          },
-          {
-            "type": "object",
-            "name": "moveInfo",
-            "properties": {
-              "parentId": { "type": "string" },
-              "index": { "type": "integer" },
-              "oldParentId": { "type": "string" },
-              "oldIndex": { "type": "integer" }
-            }
-          }
-        ]
-      },
-      {
-        "name": "onChildrenReordered",
-        "unsupported": true,
-        "type": "function",
-        "description": "Fired when the children of a folder have changed their order due to the order being sorted in the UI.  This is not called as a result of a move().",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "id"
-          },
-          {
-            "type": "object",
-            "name": "reorderInfo",
-            "properties": {
-              "childIds": {
-                "type": "array",
-                "items": { "type": "string" }
-              }
-            }
-          }
-        ]
-      },
-      {
-        "name": "onImportBegan",
-        "unsupported": true,
-        "type": "function",
-        "description": "Fired when a bookmark import session is begun.  Expensive observers should ignore onCreated updates until onImportEnded is fired.  Observers should still handle other notifications immediately.",
-        "parameters": []
-      },
-      {
-        "name": "onImportEnded",
-        "unsupported": true,
-        "type": "function",
-        "description": "Fired when a bookmark import session is ended.",
-        "parameters": []
-      }
-    ]
-  }
-]
diff --git a/application/basilisk/components/webextensions/schemas/browser_action.json b/application/basilisk/components/webextensions/schemas/browser_action.json
deleted file mode 100644
index 1a7da956a..000000000
--- a/application/basilisk/components/webextensions/schemas/browser_action.json
+++ /dev/null
@@ -1,430 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "manifest",
-    "types": [
-      {
-        "$extend": "WebExtensionManifest",
-        "properties": {
-          "browser_action": {
-            "type": "object",
-            "additionalProperties": { "$ref": "UnrecognizedProperty" },
-            "properties": {
-              "default_title": {
-                "type": "string",
-                "optional": true,
-                "preprocess": "localize"
-              },
-              "default_icon": {
-                "$ref": "IconPath",
-                "optional": true
-              },
-              "default_popup": {
-                "type": "string",
-                "format": "relativeUrl",
-                "optional": true,
-                "preprocess": "localize"
-              },
-              "browser_style": {
-                "type": "boolean",
-                "optional": true
-              }
-            },
-            "optional": true
-          }
-        }
-      }
-    ]
-  },
-  {
-    "namespace": "browserAction",
-    "description": "Use browser actions to put icons in the main browser toolbar, to the right of the address bar. In addition to its icon, a browser action can also have a tooltip, a badge, and a popup.",
-    "permissions": ["manifest:browser_action"],
-    "types": [
-      {
-        "id": "ColorArray",
-        "type": "array",
-        "items": {
-          "type": "integer",
-          "minimum": 0,
-          "maximum": 255
-        },
-        "minItems": 4,
-        "maxItems": 4
-      },
-      {
-        "id": "ImageDataType",
-        "type": "object",
-        "isInstanceOf": "ImageData",
-        "additionalProperties": { "type": "any" },
-        "postprocess": "convertImageDataToURL",
-        "description": "Pixel data for an image. Must be an ImageData object (for example, from a <code>canvas</code> element)."
-      }
-    ],
-    "functions": [
-      {
-        "name": "setTitle",
-        "type": "function",
-        "description": "Sets the title of the browser action. This shows up in the tooltip.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "title": {
-                "type": "string",
-                "description": "The string the browser action should display when moused over."
-              },
-              "tabId": {
-                "type": "integer",
-                "optional": true,
-                "description": "Limits the change to when a particular tab is selected. Automatically resets when the tab is closed."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "getTitle",
-        "type": "function",
-        "description": "Gets the title of the browser action.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "tabId": {
-                "type": "integer",
-                "optional": true,
-                "description": "Specify the tab to get the title from. If no tab is specified, the non-tab-specific title is returned."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "result",
-                "type": "string"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "setIcon",
-        "type": "function",
-        "description": "Sets the icon for the browser action. The icon can be specified either as the path to an image file or as the pixel data from a canvas element, or as dictionary of either one of those. Either the <b>path</b> or the <b>imageData</b> property must be specified.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "imageData": {
-                "choices": [
-                  { "$ref": "ImageDataType" },
-                  {
-                    "type": "object",
-                    "additionalProperties": {"$ref": "ImageDataType"}
-                  }
-                ],
-                "optional": true,
-                "description": "Either an ImageData object or a dictionary {size -> ImageData} representing icon to be set. If the icon is specified as a dictionary, the actual image to be used is chosen depending on screen's pixel density. If the number of image pixels that fit into one screen space unit equals <code>scale</code>, then image with size <code>scale</code> * 19 will be selected. Initially only scales 1 and 2 will be supported. At least one image must be specified. Note that 'details.imageData = foo' is equivalent to 'details.imageData = {'19': foo}'"
-              },
-              "path": {
-                "choices": [
-                  { "type": "string" },
-                  {
-                    "type": "object",
-                    "additionalProperties": {"type": "string"}
-                  }
-                ],
-                "optional": true,
-                "description": "Either a relative image path or a dictionary {size -> relative image path} pointing to icon to be set. If the icon is specified as a dictionary, the actual image to be used is chosen depending on screen's pixel density. If the number of image pixels that fit into one screen space unit equals <code>scale</code>, then image with size <code>scale</code> * 19 will be selected. Initially only scales 1 and 2 will be supported. At least one image must be specified. Note that 'details.path = foo' is equivalent to 'details.imageData = {'19': foo}'"
-              },
-              "tabId": {
-                "type": "integer",
-                "optional": true,
-                "description": "Limits the change to when a particular tab is selected. Automatically resets when the tab is closed."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "setPopup",
-        "type": "function",
-        "description": "Sets the html document to be opened as a popup when the user clicks on the browser action's icon.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "tabId": {
-                "type": "integer",
-                "optional": true,
-                "minimum": 0,
-                "description": "Limits the change to when a particular tab is selected. Automatically resets when the tab is closed."
-              },
-              "popup": {
-                "type": "string",
-                "description": "The html file to show in a popup.  If set to the empty string (''), no popup is shown."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "getPopup",
-        "type": "function",
-        "description": "Gets the html document set as the popup for this browser action.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "tabId": {
-                "type": "integer",
-                "optional": true,
-                "description": "Specify the tab to get the popup from. If no tab is specified, the non-tab-specific popup is returned."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "result",
-                "type": "string"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "setBadgeText",
-        "type": "function",
-        "description": "Sets the badge text for the browser action. The badge is displayed on top of the icon.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "text": {
-                "type": "string",
-                "description": "Any number of characters can be passed, but only about four can fit in the space."
-              },
-              "tabId": {
-                "type": "integer",
-                "optional": true,
-                "description": "Limits the change to when a particular tab is selected. Automatically resets when the tab is closed."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "getBadgeText",
-        "type": "function",
-        "description": "Gets the badge text of the browser action. If no tab is specified, the non-tab-specific badge text is returned.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "tabId": {
-                "type": "integer",
-                "optional": true,
-                "description": "Specify the tab to get the badge text from. If no tab is specified, the non-tab-specific badge text is returned."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "result",
-                "type": "string"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "setBadgeBackgroundColor",
-        "type": "function",
-        "description": "Sets the background color for the badge.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "color": {
-                "description": "An array of four integers in the range [0,255] that make up the RGBA color of the badge. For example, opaque red is <code>[255, 0, 0, 255]</code>. Can also be a string with a CSS value, with opaque red being <code>#FF0000</code> or <code>#F00</code>.",
-                "choices": [
-                  {"type": "string"},
-                  {"$ref": "ColorArray"}
-                ]
-              },
-              "tabId": {
-                "type": "integer",
-                "optional": true,
-                "description": "Limits the change to when a particular tab is selected. Automatically resets when the tab is closed."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "getBadgeBackgroundColor",
-        "type": "function",
-        "description": "Gets the background color of the browser action.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "tabId": {
-                "type": "integer",
-                "optional": true,
-                "description": "Specify the tab to get the badge background color from. If no tab is specified, the non-tab-specific badge background color is returned."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "result",
-                "$ref": "ColorArray"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "enable",
-        "type": "function",
-        "description": "Enables the browser action for a tab. By default, browser actions are enabled.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "optional": true,
-            "name": "tabId",
-            "minimum": 0,
-            "description": "The id of the tab for which you want to modify the browser action."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "disable",
-        "type": "function",
-        "description": "Disables the browser action for a tab.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "optional": true,
-            "name": "tabId",
-            "minimum": 0,
-            "description": "The id of the tab for which you want to modify the browser action."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "openPopup",
-        "type": "function",
-        "description": "Opens the extension popup window in the active window but does not grant tab permissions.",
-        "unsupported": true,
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "popupView",
-                "type": "object",
-                "optional": true,
-                "description": "JavaScript 'window' object for the popup window if it was succesfully opened.",
-                "additionalProperties": { "type": "any" }
-              }
-            ]
-          }
-        ]
-      }
-    ],
-    "events": [
-      {
-        "name": "onClicked",
-        "type": "function",
-        "description": "Fired when a browser action icon is clicked.  This event will not fire if the browser action has a popup.",
-        "parameters": [
-          {
-            "name": "tab",
-            "$ref": "tabs.Tab"
-          }
-        ]
-      }
-    ]
-  }
-]
diff --git a/application/basilisk/components/webextensions/schemas/commands.json b/application/basilisk/components/webextensions/schemas/commands.json
deleted file mode 100644
index a1632088e..000000000
--- a/application/basilisk/components/webextensions/schemas/commands.json
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "manifest",
-    "types": [
-     {
-        "id": "KeyName",
-        "choices": [
-          {
-            "type": "string",
-            "pattern": "^\\s*(Alt|Ctrl|Command|MacCtrl)\\s*\\+\\s*(Shift\\s*\\+\\s*)?([A-Z0-9]|Comma|Period|Home|End|PageUp|PageDown|Space|Insert|Delete|Up|Down|Left|Right)\\s*$"
-          },
-          {
-            "type": "string",
-            "pattern": "^(MediaNextTrack|MediaPlayPause|MediaPrevTrack|MediaStop)$"
-          }
-        ]
-      },
-      {
-        "$extend": "WebExtensionManifest",
-        "properties": {
-          "commands": {
-            "type": "object",
-            "optional": true,
-            "additionalProperties": {
-              "type": "object",
-              "additionalProperties": { "$ref": "UnrecognizedProperty" },
-              "properties": {
-                "suggested_key": {
-                  "type": "object",
-                  "optional": true,
-                  "properties": {
-                    "default": {
-                      "$ref": "KeyName",
-                      "optional": true
-                    },
-                    "mac": {
-                      "$ref": "KeyName",
-                      "optional": true
-                    },
-                    "linux": {
-                      "$ref": "KeyName",
-                      "optional": true
-                    },
-                    "windows": {
-                      "$ref": "KeyName",
-                      "optional": true
-                    },
-                    "chromeos": {
-                      "type": "string",
-                      "optional": true
-                    },
-                    "android": {
-                      "type": "string",
-                      "optional": true
-                    },
-                    "ios": {
-                      "type": "string",
-                      "optional": true
-                    },
-                    "additionalProperties": {
-                      "type": "string",
-                      "deprecated": "Unknown platform name",
-                      "optional": true
-                    }
-                  }
-                },
-                "description": {
-                  "type": "string",
-                  "optional": true
-                }
-              }
-            }
-          }
-        }
-      }
-    ]
-  },
-  {
-    "namespace": "commands",
-    "description": "Use the commands API to add keyboard shortcuts that trigger actions in your extension, for example, an action to open the browser action or send a command to the xtension.",
-    "permissions": ["manifest:commands"],
-    "types": [
-      {
-        "id": "Command",
-        "type": "object",
-        "properties": {
-          "name":        {
-            "type": "string",
-            "optional": true,
-            "description": "The name of the Extension Command"
-          },
-          "description": {
-            "type": "string",
-            "optional": true,
-            "description": "The Extension Command description"
-          },
-          "shortcut": {
-            "type": "string",
-            "optional": true,
-            "description": "The shortcut active for this command, or blank if not active."
-          }
-        }
-      }
-    ],
-    "events": [
-      {
-        "name": "onCommand",
-        "description": "Fired when a registered command is activated using a keyboard shortcut.",
-        "type": "function",
-        "parameters": [
-          {
-            "name": "command",
-            "type": "string"
-          }
-        ]
-      }
-    ],
-    "functions": [
-      {
-        "name": "getAll",
-        "type": "function",
-        "async": "callback",
-        "description": "Returns all the registered extension commands for this extension and their shortcut (if active).",
-        "parameters": [
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "commands",
-                "type": "array",
-                "items": {
-                  "$ref": "Command"
-                }
-              }
-            ],
-            "description": "Called to return the registered commands."
-          }
-        ]
-      }
-    ]
-  }
-]
diff --git a/application/basilisk/components/webextensions/schemas/context_menus.json b/application/basilisk/components/webextensions/schemas/context_menus.json
deleted file mode 100644
index b31af51f3..000000000
--- a/application/basilisk/components/webextensions/schemas/context_menus.json
+++ /dev/null
@@ -1,424 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "manifest",
-    "types": [
-      {
-        "$extend": "Permission",
-        "choices": [{
-          "type": "string",
-          "enum": [
-            "contextMenus"
-          ]
-        }]
-      }
-    ]
-  },
-  {
-    "namespace": "contextMenus",
-    "description": "Use the <code>browser.contextMenus</code> API to add items to the browser's context menu. You can choose what types of objects your context menu additions apply to, such as images, hyperlinks, and pages.",
-    "permissions": ["contextMenus"],
-    "properties": {
-      "ACTION_MENU_TOP_LEVEL_LIMIT": {
-        "value": 6,
-        "description": "The maximum number of top level extension items that can be added to an extension action context menu. Any items beyond this limit will be ignored."
-      }
-    },
-    "types": [
-      {
-        "id": "ContextType",
-        "type": "string",
-        "enum": ["all", "page", "frame", "selection", "link", "editable", "image", "video", "audio", "launcher", "browser_action", "page_action"],
-        "description": "The different contexts a menu can appear in. Specifying 'all' is equivalent to the combination of all other contexts except for 'launcher'. The 'launcher' context is only supported by apps and is used to add menu items to the context menu that appears when clicking on the app icon in the launcher/taskbar/dock/etc. Different platforms might put limitations on what is actually supported in a launcher context menu."
-      },
-      {
-        "id": "ItemType",
-        "type": "string",
-        "enum": ["normal", "checkbox", "radio", "separator"],
-        "description": "The type of menu item."
-      },
-      {
-        "id": "OnClickData",
-        "type": "object",
-        "description": "Information sent when a context menu item is clicked.",
-        "properties": {
-          "menuItemId": {
-            "choices": [
-              { "type": "integer" },
-              { "type": "string" }
-            ],
-            "description": "The ID of the menu item that was clicked."
-          },
-          "parentMenuItemId": {
-            "choices": [
-              { "type": "integer" },
-              { "type": "string" }
-            ],
-            "optional": true,
-            "description": "The parent ID, if any, for the item clicked."
-          },
-          "mediaType": {
-            "type": "string",
-            "optional": true,
-            "description": "One of 'image', 'video', or 'audio' if the context menu was activated on one of these types of elements."
-          },
-          "linkUrl": {
-            "type": "string",
-            "optional": true,
-            "description": "If the element is a link, the URL it points to."
-          },
-          "srcUrl": {
-            "type": "string",
-            "optional": true,
-            "description": "Will be present for elements with a 'src' URL."
-          },
-          "pageUrl": {
-            "type": "string",
-            "optional": true,
-            "description": "The URL of the page where the menu item was clicked. This property is not set if the click occured in a context where there is no current page, such as in a launcher context menu."
-          },
-          "frameUrl": {
-            "type": "string",
-            "optional": true,
-            "description": " The URL of the frame of the element where the context menu was clicked, if it was in a frame."
-          },
-          "selectionText": {
-            "type": "string",
-            "optional": true,
-            "description": "The text for the context selection, if any."
-          },
-          "editable": {
-            "type": "boolean",
-            "description": "A flag indicating whether the element is editable (text input, textarea, etc.)."
-          },
-          "wasChecked": {
-            "type": "boolean",
-            "optional": true,
-            "description": "A flag indicating the state of a checkbox or radio item before it was clicked."
-          },
-          "checked": {
-            "type": "boolean",
-            "optional": true,
-            "description": "A flag indicating the state of a checkbox or radio item after it is clicked."
-          }
-        }
-      }
-    ],
-    "functions": [
-      {
-        "name": "create",
-        "type": "function",
-        "description": "Creates a new context menu item. Note that if an error occurs during creation, you may not find out until the creation callback fires (the details will be in $(ref:runtime.lastError)).",
-        "returns": {
-          "choices": [
-            { "type": "integer" },
-            { "type": "string" }
-          ],
-          "description": "The ID of the newly created item."
-        },
-        "parameters": [
-          {
-            "type": "object",
-            "name": "createProperties",
-            "properties": {
-              "type": {
-                "$ref": "ItemType",
-                "optional": true,
-                "description": "The type of menu item. Defaults to 'normal' if not specified."
-              },
-              "id": {
-                "type": "string",
-                "optional": true,
-                "description": "The unique ID to assign to this item. Mandatory for event pages. Cannot be the same as another ID for this extension."
-              },
-              "title": {
-                "type": "string",
-                "optional": true,
-                "description": "The text to be displayed in the item; this is <em>required</em> unless <code>type</code> is 'separator'. When the context is 'selection', you can use <code>%s</code> within the string to show the selected text. For example, if this parameter's value is \"Translate '%s' to Pig Latin\" and the user selects the word \"cool\", the context menu item for the selection is \"Translate 'cool' to Pig Latin\"."
-              },
-              "checked": {
-                "type": "boolean",
-                "optional": true,
-                "description": "The initial state of a checkbox or radio item: true for selected and false for unselected. Only one radio item can be selected at a time in a given group of radio items."
-              },
-              "contexts": {
-                "type": "array",
-                "items": {
-                  "$ref": "ContextType"
-                },
-                "minItems": 1,
-                "optional": true,
-                "description": "List of contexts this menu item will appear in. Defaults to ['page'] if not specified."
-              },
-              "onclick": {
-                "type": "function",
-                "optional": true,
-                "description": "A function that will be called back when the menu item is clicked. Event pages cannot use this; instead, they should register a listener for $(ref:contextMenus.onClicked).",
-                "parameters": [
-                  {
-                    "name": "info",
-                    "$ref": "contextMenusInternal.OnClickData",
-                    "description": "Information about the item clicked and the context where the click happened."
-                  },
-                  {
-                    "name": "tab",
-                    "$ref": "tabs.Tab",
-                    "description": "The details of the tab where the click took place. Note: this parameter only present for extensions."
-                  }
-                ]
-              },
-              "parentId": {
-                "choices": [
-                  { "type": "integer" },
-                  { "type": "string" }
-                ],
-                "optional": true,
-                "description": "The ID of a parent menu item; this makes the item a child of a previously added item."
-              },
-              "documentUrlPatterns": {
-                "type": "array",
-                "items": {"type": "string"},
-                "optional": true,
-                "description": "Lets you restrict the item to apply only to documents whose URL matches one of the given patterns. (This applies to frames as well.) For details on the format of a pattern, see $(topic:match_patterns)[Match Patterns]."
-              },
-              "targetUrlPatterns": {
-                "type": "array",
-                "items": {"type": "string"},
-                "optional": true,
-                "description": "Similar to documentUrlPatterns, but lets you filter based on the src attribute of img/audio/video tags and the href of anchor tags."
-              },
-              "enabled": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether this context menu item is enabled or disabled. Defaults to true."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "description": "Called when the item has been created in the browser. If there were any problems creating the item, details will be available in $(ref:runtime.lastError).",
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "createInternal",
-        "type": "function",
-        "allowedContexts": ["addon_parent_only"],
-        "async": "callback",
-        "description": "Identical to contextMenus.create, except: the 'id' field is required and allows an integer, 'onclick' is not allowed, and the method is async (and the return value is not a menu item ID).",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "createProperties",
-            "properties": {
-              "type": {
-                "$ref": "ItemType",
-                "optional": true
-              },
-              "id": {
-                "choices": [
-                  { "type": "integer" },
-                  { "type": "string" }
-                ]
-              },
-              "title": {
-                "type": "string",
-                "optional": true
-              },
-              "checked": {
-                "type": "boolean",
-                "optional": true
-              },
-              "contexts": {
-                "type": "array",
-                "items": {
-                  "$ref": "ContextType"
-                },
-                "minItems": 1,
-                "optional": true
-              },
-              "parentId": {
-                "choices": [
-                  { "type": "integer" },
-                  { "type": "string" }
-                ],
-                "optional": true
-              },
-              "documentUrlPatterns": {
-                "type": "array",
-                "items": {"type": "string"},
-                "optional": true
-              },
-              "targetUrlPatterns": {
-                "type": "array",
-                "items": {"type": "string"},
-                "optional": true
-              },
-              "enabled": {
-                "type": "boolean",
-                "optional": true
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "update",
-        "type": "function",
-        "description": "Updates a previously created context menu item.",
-        "async": "callback",
-        "parameters": [
-          {
-            "choices": [
-              { "type": "integer" },
-              { "type": "string" }
-            ],
-            "name": "id",
-            "description": "The ID of the item to update."
-          },
-          {
-            "type": "object",
-            "name": "updateProperties",
-            "description": "The properties to update. Accepts the same values as the create function.",
-            "properties": {
-              "type": {
-                "$ref": "ItemType",
-                "optional": true
-              },
-              "title": {
-                "type": "string",
-                "optional": true
-              },
-              "checked": {
-                "type": "boolean",
-                "optional": true
-              },
-              "contexts": {
-                "type": "array",
-                "items": {
-                  "$ref": "ContextType"
-                },
-                "minItems": 1,
-                "optional": true
-              },
-              "onclick": {
-                "type": "function",
-                "optional": "omit-key-if-missing",
-                "parameters": [
-                  {
-                    "name": "info",
-                    "$ref": "contextMenusInternal.OnClickData"
-                  },
-                  {
-                    "name": "tab",
-                    "$ref": "tabs.Tab",
-                    "description": "The details of the tab where the click took place. Note: this parameter only present for extensions."
-                  }
-                ]
-              },
-              "parentId": {
-                "choices": [
-                  { "type": "integer" },
-                  { "type": "string" }
-                ],
-                "optional": true,
-                "description": "Note: You cannot change an item to be a child of one of its own descendants."
-              },
-              "documentUrlPatterns": {
-                "type": "array",
-                "items": {"type": "string"},
-                "optional": true
-              },
-              "targetUrlPatterns": {
-                "type": "array",
-                "items": {"type": "string"},
-                "optional": true
-              },
-              "enabled": {
-                "type": "boolean",
-                "optional": true
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [],
-            "description": "Called when the context menu has been updated."
-          }
-        ]
-      },
-      {
-        "name": "remove",
-        "type": "function",
-        "description": "Removes a context menu item.",
-        "async": "callback",
-        "parameters": [
-          {
-            "choices": [
-              { "type": "integer" },
-              { "type": "string" }
-            ],
-            "name": "menuItemId",
-            "description": "The ID of the context menu item to remove."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [],
-            "description": "Called when the context menu has been removed."
-          }
-        ]
-      },
-      {
-        "name": "removeAll",
-        "type": "function",
-        "description": "Removes all context menu items added by this extension.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [],
-            "description": "Called when removal is complete."
-          }
-        ]
-      }
-    ],
-    "events": [
-      {
-        "name": "onClicked",
-        "type": "function",
-        "description": "Fired when a context menu item is clicked.",
-        "parameters": [
-          {
-            "name": "info",
-            "$ref": "OnClickData",
-            "description": "Information about the item clicked and the context where the click happened."
-          },
-          {
-            "name": "tab",
-            "$ref": "tabs.Tab",
-            "description": "The details of the tab where the click took place. If the click did not take place in a tab, this parameter will be missing.",
-            "optional": true
-          }
-        ]
-      }
-    ]
-  }
-]
diff --git a/application/basilisk/components/webextensions/schemas/context_menus_internal.json b/application/basilisk/components/webextensions/schemas/context_menus_internal.json
deleted file mode 100644
index c3cb7aff0..000000000
--- a/application/basilisk/components/webextensions/schemas/context_menus_internal.json
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "contextMenusInternal",
-    "description": "Use the <code>browser.contextMenus</code> API to add items to the browser's context menu. You can choose what types of objects your context menu additions apply to, such as images, hyperlinks, and pages.",
-    "types": [
-      {
-        "id": "OnClickData",
-        "type": "object",
-        "description": "Information sent when a context menu item is clicked.",
-        "properties": {
-          "menuItemId": {
-            "choices": [
-              { "type": "integer" },
-              { "type": "string" }
-            ],
-            "description": "The ID of the menu item that was clicked."
-          },
-          "parentMenuItemId": {
-            "choices": [
-              { "type": "integer" },
-              { "type": "string" }
-            ],
-            "optional": true,
-            "description": "The parent ID, if any, for the item clicked."
-          },
-          "mediaType": {
-            "type": "string",
-            "optional": true,
-            "description": "One of 'image', 'video', or 'audio' if the context menu was activated on one of these types of elements."
-          },
-          "linkUrl": {
-            "type": "string",
-            "optional": true,
-            "description": "If the element is a link, the URL it points to."
-          },
-          "srcUrl": {
-            "type": "string",
-            "optional": true,
-            "description": "Will be present for elements with a 'src' URL."
-          },
-          "pageUrl": {
-            "type": "string",
-            "optional": true,
-            "description": "The URL of the page where the menu item was clicked. This property is not set if the click occured in a context where there is no current page, such as in a launcher context menu."
-          },
-          "frameUrl": {
-            "type": "string",
-            "optional": true,
-            "description": " The URL of the frame of the element where the context menu was clicked, if it was in a frame."
-          },
-          "selectionText": {
-            "type": "string",
-            "optional": true,
-            "description": "The text for the context selection, if any."
-          },
-          "editable": {
-            "type": "boolean",
-            "description": "A flag indicating whether the element is editable (text input, textarea, etc.)."
-          },
-          "wasChecked": {
-            "type": "boolean",
-            "optional": true,
-            "description": "A flag indicating the state of a checkbox or radio item before it was clicked."
-          },
-          "checked": {
-            "type": "boolean",
-            "optional": true,
-            "description": "A flag indicating the state of a checkbox or radio item after it is clicked."
-          }
-        }
-      }
-    ]
-  }
-]
diff --git a/application/basilisk/components/webextensions/schemas/history.json b/application/basilisk/components/webextensions/schemas/history.json
deleted file mode 100644
index e05569e38..000000000
--- a/application/basilisk/components/webextensions/schemas/history.json
+++ /dev/null
@@ -1,316 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "manifest",
-    "types": [
-      {
-        "$extend": "Permission",
-        "choices": [{
-          "type": "string",
-          "enum": [
-            "history"
-          ]
-        }]
-      }
-    ]
-  },
-  {
-    "namespace": "history",
-    "description": "Use the <code>browser.history</code> API to interact with the browser's record of visited pages. You can add, remove, and query for URLs in the browser's history. To override the history page with your own version, see $(topic:override)[Override Pages].",
-    "permissions": ["history"],
-    "types": [
-      {
-        "id": "TransitionType",
-        "type": "string",
-        "enum": ["link", "typed", "auto_bookmark", "auto_subframe", "manual_subframe", "generated", "auto_toplevel", "form_submit", "reload", "keyword", "keyword_generated"],
-        "description": "The $(topic:transition-types)[transition type] for this visit from its referrer."
-      },
-      {
-        "id": "HistoryItem",
-        "type": "object",
-        "description": "An object encapsulating one result of a history query.",
-        "properties": {
-          "id": {
-            "type": "string",
-            "description": "The unique identifier for the item."
-          },
-          "url": {
-            "type": "string",
-            "optional": true,
-            "description": "The URL navigated to by a user."
-          },
-          "title": {
-            "type": "string",
-            "optional": true,
-            "description": "The title of the page when it was last loaded."
-          },
-          "lastVisitTime": {
-            "type": "number",
-            "optional": true,
-            "description": "When this page was last loaded, represented in milliseconds since the epoch."
-          },
-          "visitCount": {
-            "type": "integer",
-            "optional": true,
-            "description": "The number of times the user has navigated to this page."
-          },
-          "typedCount": {
-            "type": "integer",
-            "optional": true,
-            "description": "The number of times the user has navigated to this page by typing in the address."
-          }
-        }
-      },
-      {
-        "id": "VisitItem",
-        "type": "object",
-        "description": "An object encapsulating one visit to a URL.",
-        "properties": {
-          "id": {
-            "type": "string",
-            "description": "The unique identifier for the item."
-          },
-          "visitId": {
-            "type": "string",
-            "description": "The unique identifier for this visit."
-          },
-          "visitTime": {
-            "type": "number",
-            "optional": true,
-            "description": "When this visit occurred, represented in milliseconds since the epoch."
-          },
-          "referringVisitId": {
-            "type": "string",
-            "description": "The visit ID of the referrer."
-          },
-          "transition": {
-            "$ref": "TransitionType",
-            "description": "The $(topic:transition-types)[transition type] for this visit from its referrer."
-          }
-        }
-      }
-    ],
-    "functions": [
-      {
-        "name": "search",
-        "type": "function",
-        "description": "Searches the history for the last visit time of each page matching the query.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "query",
-            "type": "object",
-            "properties": {
-              "text": {
-                "type": "string",
-                "description": "A free-text query to the history service.  Leave empty to retrieve all pages."
-              },
-              "startTime": {
-                "$ref": "extensionTypes.Date",
-                "optional": true,
-                "description": "Limit results to those visited after this date. If not specified, this defaults to 24 hours in the past."
-              },
-              "endTime": {
-                "$ref": "extensionTypes.Date",
-                "optional": true,
-                "description": "Limit results to those visited before this date."
-              },
-              "maxResults": {
-                "type": "integer",
-                "optional": true,
-                "minimum": 1,
-                "description": "The maximum number of results to retrieve.  Defaults to 100."
-              }
-            }
-          },
-          {
-            "name": "callback",
-            "type": "function",
-            "parameters": [
-              {
-                "name": "results",
-                "type": "array",
-                "items": {
-                  "$ref": "HistoryItem"
-                }
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getVisits",
-        "type": "function",
-        "description": "Retrieves information about visits to a URL.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "url": {
-                "type": "string",
-                "description": "The URL for which to retrieve visit information.  It must be in the format as returned from a call to history.search."
-              }
-            }
-          },
-          {
-            "name": "callback",
-            "type": "function",
-            "parameters": [
-              {
-                "name": "results",
-                "type": "array",
-                "items": {
-                  "$ref": "VisitItem"
-                }
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "addUrl",
-        "type": "function",
-        "description": "Adds a URL to the history with a default visitTime of the current time and a default $(topic:transition-types)[transition type] of \"link\".",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "url": {
-                "type": "string",
-                "description": "The URL to add. Must be a valid URL that can be added to history."
-              },
-              "title": {
-                "type": "string",
-                "optional": true,
-                "description": "The title of the page."
-              },
-              "transition": {
-                "$ref": "TransitionType",
-                "optional": true,
-                "description": "The $(topic:transition-types)[transition type] for this visit from its referrer."
-              },
-              "visitTime": {
-                "$ref": "extensionTypes.Date",
-                "optional": true,
-                "description": "The date when this visit occurred."
-              }
-            }
-          },
-          {
-            "name": "callback",
-            "type": "function",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "deleteUrl",
-        "type": "function",
-        "description": "Removes all occurrences of the given URL from the history.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "url": {
-                "type": "string",
-                "description": "The URL to remove."
-              }
-            }
-          },
-          {
-            "name": "callback",
-            "type": "function",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "deleteRange",
-        "type": "function",
-        "description": "Removes all items within the specified date range from the history.  Pages will not be removed from the history unless all visits fall within the range.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "range",
-            "type": "object",
-            "properties": {
-              "startTime": {
-                "$ref": "extensionTypes.Date",
-                "description": "Items added to history after this date."
-              },
-              "endTime": {
-                "$ref": "extensionTypes.Date",
-                "description": "Items added to history before this date."
-              }
-            }
-          },
-          {
-            "name": "callback",
-            "type": "function",
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "deleteAll",
-        "type": "function",
-        "description": "Deletes all items from the history.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "callback",
-            "type": "function",
-            "parameters": []
-          }
-        ]
-      }
-    ],
-    "events": [
-      {
-        "name": "onVisited",
-        "type": "function",
-        "description": "Fired when a URL is visited, providing the HistoryItem data for that URL.  This event fires before the page has loaded.",
-        "parameters": [
-          {
-            "name": "result",
-            "$ref": "HistoryItem"
-          }
-        ]
-      },
-      {
-        "name": "onVisitRemoved",
-        "type": "function",
-        "description": "Fired when one or more URLs are removed from the history service.  When all visits have been removed the URL is purged from history.",
-        "parameters": [
-          {
-            "name": "removed",
-            "type": "object",
-            "properties": {
-              "allHistory": {
-                "type": "boolean",
-                "description": "True if all history was removed.  If true, then urls will be empty."
-              },
-              "urls": {
-                "type": "array",
-                "items": {
-                  "type": "string"
-                }
-              }
-            }
-          }
-        ]
-      }
-    ]
-  }
-]
diff --git a/application/basilisk/components/webextensions/schemas/jar.mn b/application/basilisk/components/webextensions/schemas/jar.mn
deleted file mode 100644
index c9fc9a808..000000000
--- a/application/basilisk/components/webextensions/schemas/jar.mn
+++ /dev/null
@@ -1,16 +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/.
-
-browser.jar:
-    content/browser/schemas/bookmarks.json
-    content/browser/schemas/browser_action.json
-    content/browser/schemas/commands.json
-    content/browser/schemas/context_menus.json
-    content/browser/schemas/context_menus_internal.json
-    content/browser/schemas/history.json
-    content/browser/schemas/omnibox.json
-    content/browser/schemas/page_action.json
-    content/browser/schemas/sessions.json
-    content/browser/schemas/tabs.json
-    content/browser/schemas/windows.json
diff --git a/application/basilisk/components/webextensions/schemas/moz.build b/application/basilisk/components/webextensions/schemas/moz.build
deleted file mode 100644
index aac3a838c..000000000
--- a/application/basilisk/components/webextensions/schemas/moz.build
+++ /dev/null
@@ -1,7 +0,0 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-JAR_MANIFESTS += ['jar.mn']
diff --git a/application/basilisk/components/webextensions/schemas/omnibox.json b/application/basilisk/components/webextensions/schemas/omnibox.json
deleted file mode 100644
index 34428fab7..000000000
--- a/application/basilisk/components/webextensions/schemas/omnibox.json
+++ /dev/null
@@ -1,248 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-[
-  {
-    "namespace": "manifest",
-    "types": [
-      {
-        "$extend": "WebExtensionManifest",
-        "properties": {
-          "omnibox": {
-            "type": "object",
-            "additionalProperties": { "$ref": "UnrecognizedProperty" },
-            "properties": {
-              "keyword": {
-                "type": "string",
-                "pattern": "^[^?\\s:]([^\\s:]*[^/\\s:])?$"
-              }
-            },
-            "optional": true
-          }
-        }
-      }
-    ]
-  },
-  {
-    "namespace": "omnibox",
-    "description": "The omnibox API allows you to register a keyword with Firefox's address bar.",
-    "permissions": ["manifest:omnibox"],
-    "types": [
-      {
-        "id": "DescriptionStyleType",
-        "type": "string",
-        "description": "The style type.",
-        "enum": ["url", "match", "dim"]
-      },
-      {
-        "id": "OnInputEnteredDisposition",
-        "type": "string",
-        "enum": ["currentTab", "newForegroundTab", "newBackgroundTab"],
-        "description": "The window disposition for the omnibox query. This is the recommended context to display results. For example, if the omnibox command is to navigate to a certain URL, a disposition of 'newForegroundTab' means the navigation should take place in a new selected tab."
-      },
-      {
-        "id": "SuggestResult",
-        "type": "object",
-        "description": "A suggest result.",
-        "properties": {
-          "content": {
-            "type": "string",
-            "minLength": 1,
-            "description": "The text that is put into the URL bar, and that is sent to the extension when the user chooses this entry."
-          },
-          "description": {
-            "type": "string",
-            "minLength": 1,
-            "description": "The text that is displayed in the URL dropdown. Can contain XML-style markup for styling. The supported tags are 'url' (for a literal URL), 'match' (for highlighting text that matched what the user's query), and 'dim' (for dim helper text). The styles can be nested, eg. <dim><match>dimmed match</match></dim>. You must escape the five predefined entities to display them as text: stackoverflow.com/a/1091953/89484 "
-          },
-          "descriptionStyles": {
-            "optional": true,
-            "unsupported": true,
-            "type": "array",
-            "description": "An array of style ranges for the description, as provided by the extension.",
-            "items": {
-              "type": "object",
-              "description": "The style ranges for the description, as provided by the extension.",
-              "properties": {
-                "offset": { "type": "integer" },
-                "type": { "description": "The style type", "$ref": "DescriptionStyleType"},
-                "length": { "type": "integer", "optional": true }
-              }
-            }
-          },
-          "descriptionStylesRaw": {
-            "optional": true,
-            "unsupported": true,
-            "type": "array",
-            "description": "An array of style ranges for the description, as provided by ToValue().",
-            "items": {
-              "type": "object",
-              "description": "The style ranges for the description, as provided by ToValue().",
-              "properties": {
-                "offset": { "type": "integer" },
-                "type": { "type": "integer" }
-              }
-            }
-          }
-        }
-      },
-      {
-        "id": "DefaultSuggestResult",
-        "type": "object",
-        "description": "A suggest result.",
-        "properties": {
-          "description": {
-            "type": "string",
-            "minLength": 1,
-            "description": "The text that is displayed in the URL dropdown."
-          },
-          "descriptionStyles": {
-            "optional": true,
-            "unsupported": true,
-            "type": "array",
-            "description": "An array of style ranges for the description, as provided by the extension.",
-            "items": {
-              "type": "object",
-              "description": "The style ranges for the description, as provided by the extension.",
-              "properties": {
-                "offset": { "type": "integer" },
-                "type": { "description": "The style type", "$ref": "DescriptionStyleType"},
-                "length": { "type": "integer", "optional": true }
-              }
-            }
-          },
-          "descriptionStylesRaw": {
-            "optional": true,
-            "unsupported": true,
-            "type": "array",
-            "description": "An array of style ranges for the description, as provided by ToValue().",
-            "items": {
-              "type": "object",
-              "description": "The style ranges for the description, as provided by ToValue().",
-              "properties": {
-                "offset": { "type": "integer" },
-                "type": { "type": "integer" }
-              }
-            }
-          }
-        }
-      }
-    ],
-    "functions": [
-      {
-        "name": "setDefaultSuggestion",
-        "type": "function",
-        "description": "Sets the description and styling for the default suggestion. The default suggestion is the text that is displayed in the first suggestion row underneath the URL bar.",
-        "parameters": [
-          {
-            "name": "suggestion",
-            "$ref": "DefaultSuggestResult",
-            "description": "A partial SuggestResult object, without the 'content' parameter."
-          }
-        ]
-      }
-    ],
-    "events": [
-      {
-        "name": "onInputStarted",
-        "type": "function",
-        "description": "User has started a keyword input session by typing the extension's keyword. This is guaranteed to be sent exactly once per input session, and before any onInputChanged events.",
-        "parameters": []
-      },
-      {
-        "name": "onInputChanged",
-        "type": "function",
-        "description": "User has changed what is typed into the omnibox.",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "text"
-          },
-          {
-            "name": "suggest",
-            "type": "function",
-            "description": "A callback passed to the onInputChanged event used for sending suggestions back to the browser.",
-            "parameters": [
-              {
-                "name": "suggestResults",
-                "type": "array",
-                "description": "Array of suggest results",
-                "items": {
-                  "$ref": "SuggestResult"
-                }
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "onInputEntered",
-        "type": "function",
-        "description": "User has accepted what is typed into the omnibox.",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "text"
-          },
-          {
-            "name": "disposition",
-            "$ref": "OnInputEnteredDisposition"
-          }
-        ]
-      },
-      {
-        "name": "onInputCancelled",
-        "type": "function",
-        "description": "User has ended the keyword input session without accepting the input.",
-        "parameters": []
-      }
-    ]
-  },
-  {
-    "namespace": "omnibox_internal",
-    "description": "The internal namespace used by the omnibox API.",
-    "defaultContexts": ["addon_parent_only"],
-    "functions": [
-      {
-        "name": "addSuggestions",
-        "type": "function",
-        "async": "callback",
-        "description": "Internal function used by omnibox.onInputChanged for adding search suggestions",
-        "parameters": [
-          {
-            "name": "id",
-            "type": "integer",
-            "description": "The ID of the callback received by onInputChangedInternal"
-          },
-          {
-            "name": "suggestResults",
-            "type": "array",
-            "description": "Array of suggest results",
-            "items": {
-              "$ref": "omnibox.SuggestResult"
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      }
-    ],
-    "events": [
-      {
-        "name": "onInputChanged",
-        "type": "function",
-        "description": "Identical to omnibox.onInputChanged except no 'suggest' callback is provided.",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "text"
-          }
-        ]
-      }
-    ]
-  }
-]
\ No newline at end of file
diff --git a/application/basilisk/components/webextensions/schemas/page_action.json b/application/basilisk/components/webextensions/schemas/page_action.json
deleted file mode 100644
index 126378ca5..000000000
--- a/application/basilisk/components/webextensions/schemas/page_action.json
+++ /dev/null
@@ -1,235 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "manifest",
-    "types": [
-      {
-        "$extend": "WebExtensionManifest",
-        "properties": {
-          "page_action": {
-            "type": "object",
-            "additionalProperties": { "$ref": "UnrecognizedProperty" },
-            "properties": {
-              "default_title": {
-                "type": "string",
-                "optional": true,
-                "preprocess": "localize"
-              },
-              "default_icon": {
-                "$ref": "IconPath",
-                "optional": true
-              },
-              "default_popup": {
-                "type": "string",
-                "format": "relativeUrl",
-                "optional": true,
-                "preprocess": "localize"
-              },
-              "browser_style": {
-                "type": "boolean",
-                "optional": true
-              }
-            },
-            "optional": true
-          }
-        }
-      }
-    ]
-  },
-  {
-    "namespace": "pageAction",
-    "description": "Use the <code>browser.pageAction</code> API to put icons inside the address bar. Page actions represent actions that can be taken on the current page, but that aren't applicable to all pages.",
-    "permissions": ["manifest:page_action"],
-    "types": [
-      {
-        "id": "ImageDataType",
-        "type": "object",
-        "isInstanceOf": "ImageData",
-        "additionalProperties": { "type": "any" },
-        "postprocess": "convertImageDataToURL",
-        "description": "Pixel data for an image. Must be an ImageData object (for example, from a <code>canvas</code> element)."
-      }
-    ],
-    "functions": [
-      {
-        "name": "show",
-        "type": "function",
-        "async": "callback",
-        "description": "Shows the page action. The page action is shown whenever the tab is selected.",
-        "parameters": [
-          {"type": "integer", "name": "tabId", "minimum": 0, "description": "The id of the tab for which you want to modify the page action."},
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "hide",
-        "type": "function",
-        "async": "callback",
-        "description": "Hides the page action.",
-        "parameters": [
-          {"type": "integer", "name": "tabId", "minimum": 0, "description": "The id of the tab for which you want to modify the page action."},
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "setTitle",
-        "type": "function",
-        "description": "Sets the title of the page action. This is displayed in a tooltip over the page action.",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "tabId": {"type": "integer", "minimum": 0, "description": "The id of the tab for which you want to modify the page action."},
-              "title": {"type": "string", "description": "The tooltip string."}
-            }
-          }
-        ]
-      },
-      {
-        "name": "getTitle",
-        "type": "function",
-        "description": "Gets the title of the page action.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "tabId": {
-                "type": "integer",
-                "description": "Specify the tab to get the title from."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "result",
-                "type": "string"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "setIcon",
-        "type": "function",
-        "description": "Sets the icon for the page action. The icon can be specified either as the path to an image file or as the pixel data from a canvas element, or as dictionary of either one of those. Either the <b>path</b> or the <b>imageData</b> property must be specified.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "tabId": {"type": "integer", "minimum": 0, "description": "The id of the tab for which you want to modify the page action."},
-              "imageData": {
-                "choices": [
-                  { "$ref": "ImageDataType" },
-                  {
-                    "type": "object",
-                    "additionalProperties": {"$ref": "ImageDataType"}
-                  }
-                ],
-                "optional": true,
-                "description": "Either an ImageData object or a dictionary {size -> ImageData} representing icon to be set. If the icon is specified as a dictionary, the actual image to be used is chosen depending on screen's pixel density. If the number of image pixels that fit into one screen space unit equals <code>scale</code>, then image with size <code>scale</code> * 19 will be selected. Initially only scales 1 and 2 will be supported. At least one image must be specified. Note that 'details.imageData = foo' is equivalent to 'details.imageData = {'19': foo}'"
-              },
-              "path": {
-                "choices": [
-                  { "type": "string" },
-                  {
-                    "type": "object",
-                    "additionalProperties": {"type": "string"}
-                  }
-                ],
-                "optional": true,
-                "description": "Either a relative image path or a dictionary {size -> relative image path} pointing to icon to be set. If the icon is specified as a dictionary, the actual image to be used is chosen depending on screen's pixel density. If the number of image pixels that fit into one screen space unit equals <code>scale</code>, then image with size <code>scale</code> * 19 will be selected. Initially only scales 1 and 2 will be supported. At least one image must be specified. Note that 'details.path = foo' is equivalent to 'details.imageData = {'19': foo}'"
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "setPopup",
-        "type": "function",
-        "async": true,
-        "description": "Sets the html document to be opened as a popup when the user clicks on the page action's icon.",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "tabId": {"type": "integer", "minimum": 0, "description": "The id of the tab for which you want to modify the page action."},
-              "popup": {
-                "type": "string",
-                "description": "The html file to show in a popup.  If set to the empty string (''), no popup is shown."
-              }
-            }
-          }
-        ]
-      },
-      {
-        "name": "getPopup",
-        "type": "function",
-        "description": "Gets the html document set as the popup for this page action.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "details",
-            "type": "object",
-            "properties": {
-              "tabId": {
-                "type": "integer",
-                "description": "Specify the tab to get the popup from."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "result",
-                "type": "string"
-              }
-            ]
-          }
-        ]
-      }
-    ],
-    "events": [
-      {
-        "name": "onClicked",
-        "type": "function",
-        "description": "Fired when a page action icon is clicked.  This event will not fire if the page action has a popup.",
-        "parameters": [
-          {
-            "name": "tab",
-            "$ref": "tabs.Tab"
-          }
-        ]
-      }
-    ]
-  }
-]
diff --git a/application/basilisk/components/webextensions/schemas/sessions.json b/application/basilisk/components/webextensions/schemas/sessions.json
deleted file mode 100644
index 690bb8ebc..000000000
--- a/application/basilisk/components/webextensions/schemas/sessions.json
+++ /dev/null
@@ -1,146 +0,0 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "manifest",
-    "types": [
-      {
-        "$extend": "Permission",
-        "choices": [{
-          "type": "string",
-          "enum": [
-            "sessions"
-          ]
-        }]
-      }
-    ]
-  },
-  {
-    "namespace": "sessions",
-    "description": "Use the <code>chrome.sessions</code> API to query and restore tabs and windows from a browsing session.",
-    "permissions": ["sessions"],
-    "types": [
-      {
-        "id": "Filter",
-        "type": "object",
-        "properties": {
-          "maxResults": {
-            "type": "integer",
-            "minimum": 0,
-            "maximum": 25,
-            "optional": true,
-            "description": "The maximum number of entries to be fetched in the requested list. Omit this parameter to fetch the maximum number of entries ($(ref:sessions.MAX_SESSION_RESULTS))."
-          }
-        }
-      },
-      {
-        "id": "Session",
-        "type": "object",
-        "properties": {
-          "lastModified": {"type": "integer", "description": "The time when the window or tab was closed or modified, represented in milliseconds since the epoch."},
-          "tab": {"$ref": "tabs.Tab", "optional": true, "description": "The $(ref:tabs.Tab), if this entry describes a tab. Either this or $(ref:sessions.Session.window) will be set."},
-          "window": {"$ref": "windows.Window", "optional": true, "description": "The $(ref:windows.Window), if this entry describes a window. Either this or $(ref:sessions.Session.tab) will be set."}
-        }
-      },
-      {
-        "id": "Device",
-        "type": "object",
-        "properties": {
-          "info": {"type": "string"},
-          "deviceName": {"type": "string", "description": "The name of the foreign device."},
-          "sessions": {"type": "array", "items": {"$ref": "Session"}, "description": "A list of open window sessions for the foreign device, sorted from most recently to least recently modified session."}
-        }
-      }
-    ],
-    "functions": [
-      {
-        "name": "getRecentlyClosed",
-        "type": "function",
-        "description": "Gets the list of recently closed tabs and/or windows.",
-        "async": "callback",
-        "parameters": [
-          {
-            "$ref": "Filter",
-            "name": "filter",
-            "optional": true,
-            "default": {}
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "sessions", "type": "array", "items": { "$ref": "Session" }, "description": "The list of closed entries in reverse order that they were closed (the most recently closed tab or window will be at index <code>0</code>). The entries may contain either tabs or windows."
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getDevices",
-        "unsupported": true,
-        "type": "function",
-        "description": "Retrieves all devices with synced sessions.",
-        "async": "callback",
-        "parameters": [
-          {
-            "$ref": "Filter",
-            "name": "filter",
-            "optional": true
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "devices", "type": "array", "items": { "$ref": "Device" }, "description": "The list of $(ref:sessions.Device) objects for each synced session, sorted in order from device with most recently modified session to device with least recently modified session. $(ref:tabs.Tab) objects are sorted by recency in the $(ref:windows.Window) of the $(ref:sessions.Session) objects."
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "restore",
-        "type": "function",
-        "description": "Reopens a $(ref:windows.Window) or $(ref:tabs.Tab), with an optional callback to run when the entry has been restored.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "string",
-            "name": "sessionId",
-            "optional": true,
-            "description": "The $(ref:windows.Window.sessionId), or $(ref:tabs.Tab.sessionId) to restore. If this parameter is not specified, the most recently closed session is restored."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "$ref": "Session",
-                "name": "restoredSession",
-                "description": "A $(ref:sessions.Session) containing the restored $(ref:windows.Window) or $(ref:tabs.Tab) object."
-              }
-            ]
-          }
-        ]
-      }
-    ],
-    "events": [
-      {
-        "name": "onChanged",
-        "unsupported": true,
-        "description": "Fired when recently closed tabs and/or windows are changed. This event does not monitor synced sessions changes.",
-        "type": "function"
-      }
-    ],
-    "properties": {
-      "MAX_SESSION_RESULTS": {
-        "value": 25,
-        "description": "The maximum number of $(ref:sessions.Session) that will be included in a requested list."
-      }
-    }
-  }
-]
diff --git a/application/basilisk/components/webextensions/schemas/tabs.json b/application/basilisk/components/webextensions/schemas/tabs.json
deleted file mode 100644
index 23ce33a4b..000000000
--- a/application/basilisk/components/webextensions/schemas/tabs.json
+++ /dev/null
@@ -1,1295 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "manifest",
-    "types": [
-      {
-        "$extend": "Permission",
-        "choices": [{
-          "type": "string",
-          "enum": [
-            "activeTab",
-            "tabs"
-          ]
-        }]
-      }
-    ]
-  },
-  {
-    "namespace": "tabs",
-    "description": "Use the <code>browser.tabs</code> API to interact with the browser's tab system. You can use this API to create, modify, and rearrange tabs in the browser.",
-    "types": [
-      { "id": "MutedInfoReason",
-        "type": "string",
-        "description": "An event that caused a muted state change.",
-        "enum": [
-          {"name": "user", "description": "A user input action has set/overridden the muted state."},
-          {"name": "capture", "description": "Tab capture started, forcing a muted state change."},
-          {"name": "extension", "description": "An extension, identified by the extensionId field, set the muted state."}
-        ]
-      },
-      {
-        "id": "MutedInfo",
-        "type": "object",
-        "description": "Tab muted state and the reason for the last state change.",
-        "properties": {
-          "muted": {
-            "type": "boolean",
-            "description": "Whether the tab is prevented from playing sound (but hasn't necessarily recently produced sound). Equivalent to whether the muted audio indicator is showing."
-          },
-          "reason": {
-            "$ref": "MutedInfoReason",
-            "optional": true,
-            "description": "The reason the tab was muted or unmuted. Not set if the tab's mute state has never been changed."
-          },
-          "extensionId": {
-            "type": "string",
-            "optional": true,
-            "description": "The ID of the extension that changed the muted state. Not set if an extension was not the reason the muted state last changed."
-          }
-        }
-      },
-      {
-        "id": "Tab",
-        "type": "object",
-        "properties": {
-          "id": {"type": "integer", "minimum": -1, "optional": true, "description": "The ID of the tab. Tab IDs are unique within a browser session. Under some circumstances a Tab may not be assigned an ID, for example when querying foreign tabs using the $(ref:sessions) API, in which case a session ID may be present. Tab ID can also be set to $(ref:tabs.TAB_ID_NONE) for apps and devtools windows."},
-          "index": {"type": "integer", "minimum": -1, "description": "The zero-based index of the tab within its window."},
-          "windowId": {"type": "integer", "minimum": 0, "description": "The ID of the window the tab is contained within."},
-          "openerTabId": {"unsupported": true, "type": "integer", "minimum": 0, "optional": true, "description": "The ID of the tab that opened this tab, if any. This property is only present if the opener tab still exists."},
-          "selected": {"type": "boolean", "description": "Whether the tab is selected.", "deprecated": "Please use $(ref:tabs.Tab.highlighted).", "unsupported": true},
-          "highlighted": {"type": "boolean", "description": "Whether the tab is highlighted."},
-          "active": {"type": "boolean", "description": "Whether the tab is active in its window. (Does not necessarily mean the window is focused.)"},
-          "pinned": {"type": "boolean", "description": "Whether the tab is pinned."},
-          "audible": {"type": "boolean", "optional": true, "description": "Whether the tab has produced sound over the past couple of seconds (but it might not be heard if also muted). Equivalent to whether the speaker audio indicator is showing."},
-          "mutedInfo": {"$ref": "MutedInfo", "optional": true, "description": "Current tab muted state and the reason for the last state change."},
-          "url": {"type": "string", "optional": true, "permissions": ["tabs"], "description": "The URL the tab is displaying. This property is only present if the extension's manifest includes the <code>\"tabs\"</code> permission."},
-          "title": {"type": "string", "optional": true, "permissions": ["tabs"], "description": "The title of the tab. This property is only present if the extension's manifest includes the <code>\"tabs\"</code> permission."},
-          "favIconUrl": {"type": "string", "optional": true, "permissions": ["tabs"], "description": "The URL of the tab's favicon. This property is only present if the extension's manifest includes the <code>\"tabs\"</code> permission. It may also be an empty string if the tab is loading."},
-          "status": {"type": "string", "optional": true, "description": "Either <em>loading</em> or <em>complete</em>."},
-          "incognito": {"type": "boolean", "description": "Whether the tab is in an incognito window."},
-          "width": {"type": "integer", "optional": true, "description": "The width of the tab in pixels."},
-          "height": {"type": "integer", "optional": true, "description": "The height of the tab in pixels."},
-          "sessionId": {"unsupported": true, "type": "string", "optional": true, "description": "The session ID used to uniquely identify a Tab obtained from the $(ref:sessions) API."},
-          "cookieStoreId": {"type": "string", "description": "The CookieStoreId used for the tab."}
-        }
-      },
-      {
-        "id": "ZoomSettingsMode",
-        "type": "string",
-        "description": "Defines how zoom changes are handled, i.e. which entity is responsible for the actual scaling of the page; defaults to <code>automatic</code>.",
-        "enum": [
-          {
-            "name": "automatic",
-            "description": "Zoom changes are handled automatically by the browser."
-          },
-          {
-            "name": "manual",
-            "description": "Overrides the automatic handling of zoom changes. The <code>onZoomChange</code> event will still be dispatched, and it is the responsibility of the extension to listen for this event and manually scale the page. This mode does not support <code>per-origin</code> zooming, and will thus ignore the <code>scope</code> zoom setting and assume <code>per-tab</code>."
-          },
-          {
-            "name": "disabled",
-            "description": "Disables all zooming in the tab. The tab will revert to the default zoom level, and all attempted zoom changes will be ignored."
-          }
-        ]
-      },
-      {
-        "id": "ZoomSettingsScope",
-        "type": "string",
-        "description": "Defines whether zoom changes will persist for the page's origin, or only take effect in this tab; defaults to <code>per-origin</code> when in <code>automatic</code> mode, and <code>per-tab</code> otherwise.",
-        "enum": [
-          {
-            "name": "per-origin",
-            "description": "Zoom changes will persist in the zoomed page's origin, i.e. all other tabs navigated to that same origin will be zoomed as well. Moreover, <code>per-origin</code> zoom changes are saved with the origin, meaning that when navigating to other pages in the same origin, they will all be zoomed to the same zoom factor. The <code>per-origin</code> scope is only available in the <code>automatic</code> mode."
-          },
-          {
-            "name": "per-tab",
-            "description": "Zoom changes only take effect in this tab, and zoom changes in other tabs will not affect the zooming of this tab. Also, <code>per-tab</code> zoom changes are reset on navigation; navigating a tab will always load pages with their <code>per-origin</code> zoom factors."
-          }
-        ]
-      },
-      {
-        "id": "ZoomSettings",
-        "type": "object",
-        "description": "Defines how zoom changes in a tab are handled and at what scope.",
-        "properties": {
-          "mode": {
-            "$ref": "ZoomSettingsMode",
-            "description": "Defines how zoom changes are handled, i.e. which entity is responsible for the actual scaling of the page; defaults to <code>automatic</code>.",
-            "optional": true
-          },
-          "scope": {
-            "$ref": "ZoomSettingsScope",
-            "description": "Defines whether zoom changes will persist for the page's origin, or only take effect in this tab; defaults to <code>per-origin</code> when in <code>automatic</code> mode, and <code>per-tab</code> otherwise.",
-            "optional": true
-          },
-          "defaultZoomFactor": {
-            "type": "number",
-            "optional": true,
-            "description": "Used to return the default zoom level for the current tab in calls to tabs.getZoomSettings."
-          }
-        }
-      },
-      {
-        "id": "TabStatus",
-        "type": "string",
-        "enum": ["loading", "complete"],
-        "description": "Whether the tabs have completed loading."
-      },
-      {
-        "id": "WindowType",
-        "type": "string",
-        "enum": ["normal", "popup", "panel", "app", "devtools"],
-        "description": "The type of window."
-      }
-    ],
-    "properties": {
-      "TAB_ID_NONE": {
-        "value": -1,
-        "description": "An ID which represents the absence of a browser tab."
-      }
-    },
-    "functions": [
-      {
-        "name": "get",
-        "type": "function",
-        "description": "Retrieves details about the specified tab.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {"name": "tab", "$ref": "Tab"}
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getCurrent",
-        "type": "function",
-        "description": "Gets the tab that this script call is being made from. May be undefined if called from a non-tab context (for example: a background page or popup view).",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "tab",
-                "$ref": "Tab",
-                "optional": true
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "connect",
-        "type": "function",
-        "description": "Connects to the content script(s) in the specified tab. The $(ref:runtime.onConnect) event is fired in each content script running in the specified tab for the current extension. For more details, see $(topic:messaging)[Content Script Messaging].",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0
-          },
-          {
-            "type": "object",
-            "name": "connectInfo",
-            "properties": {
-              "name": { "type": "string", "optional": true, "description": "Will be passed into onConnect for content scripts that are listening for the connection event." },
-              "frameId": {
-                "type": "integer",
-                "optional": true,
-                "minimum": 0,
-                "description": "Open a port to a specific $(topic:frame_ids)[frame] identified by <code>frameId</code> instead of all frames in the tab."
-              }
-            },
-            "optional": true
-          }
-        ],
-        "returns": {
-          "$ref": "runtime.Port",
-          "description": "A port that can be used to communicate with the content scripts running in the specified tab. The port's $(ref:runtime.Port) event is fired if the tab closes or does not exist. "
-        }
-      },
-      {
-        "name": "sendRequest",
-        "deprecated": "Please use $(ref:runtime.sendMessage).",
-        "unsupported": true,
-        "type": "function",
-        "description": "Sends a single request to the content script(s) in the specified tab, with an optional callback to run when a response is sent back.  The $(ref:extension.onRequest) event is fired in each content script running in the specified tab for the current extension.",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0
-          },
-          {
-            "type": "any",
-            "name": "request"
-          },
-          {
-            "type": "function",
-            "name": "responseCallback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "response",
-                "type": "any",
-                "description": "The JSON response object sent by the handler of the request. If an error occurs while connecting to the specified tab, the callback will be called with no arguments and $(ref:runtime.lastError) will be set to the error message."
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "sendMessage",
-        "type": "function",
-        "description": "Sends a single message to the content script(s) in the specified tab, with an optional callback to run when a response is sent back.  The $(ref:runtime.onMessage) event is fired in each content script running in the specified tab for the current extension.",
-        "async": "responseCallback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0
-          },
-          {
-            "type": "any",
-            "name": "message"
-          },
-          {
-            "type": "object",
-            "name": "options",
-            "properties": {
-              "frameId": {
-                "type": "integer",
-                "optional": true,
-                "minimum": 0,
-                "description": "Send a message to a specific $(topic:frame_ids)[frame] identified by <code>frameId</code> instead of all frames in the tab."
-              }
-            },
-            "optional": true
-          },
-          {
-            "type": "function",
-            "name": "responseCallback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "response",
-                "type": "any",
-                "description": "The JSON response object sent by the handler of the message. If an error occurs while connecting to the specified tab, the callback will be called with no arguments and $(ref:runtime.lastError) will be set to the error message."
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getSelected",
-        "deprecated": "Please use $(ref:tabs.query) <code>{active: true}</code>.",
-        "unsupported": true,
-        "type": "function",
-        "description": "Gets the tab that is selected in the specified window.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "windowId",
-            "minimum": -2,
-            "optional": true,
-            "description": "Defaults to the $(topic:current-window)[current window]."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {"name": "tab", "$ref": "Tab"}
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getAllInWindow",
-        "deprecated": "Please use $(ref:tabs.query) <code>{windowId: windowId}</code>.",
-        "unsupported": true,
-        "type": "function",
-        "description": "Gets details about all tabs in the specified window.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "windowId",
-            "minimum": -2,
-            "optional": true,
-            "description": "Defaults to the $(topic:current-window)[current window]."
-            },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {"name": "tabs", "type": "array", "items": { "$ref": "Tab" } }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "create",
-        "type": "function",
-        "description": "Creates a new tab.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "createProperties",
-            "properties": {
-              "windowId": {
-                "type": "integer",
-                "minimum": -2,
-                "optional": true,
-                "description": "The window to create the new tab in. Defaults to the $(topic:current-window)[current window]."
-              },
-              "index": {
-                "type": "integer",
-                "minimum": 0,
-                "optional": true,
-                "description": "The position the tab should take in the window. The provided value will be clamped to between zero and the number of tabs in the window."
-              },
-              "url": {
-                "type": "string",
-                "optional": true,
-                "description": "The URL to navigate the tab to initially. Fully-qualified URLs must include a scheme (i.e. 'http://www.google.com', not 'www.google.com'). Relative URLs will be relative to the current page within the extension. Defaults to the New Tab Page."
-              },
-              "active": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tab should become the active tab in the window. Does not affect whether the window is focused (see $(ref:windows.update)). Defaults to <var>true</var>."
-              },
-              "selected": {
-                "deprecated": "Please use <em>active</em>.",
-                "unsupported": true,
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tab should become the selected tab in the window. Defaults to <var>true</var>"
-              },
-              "pinned": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tab should be pinned. Defaults to <var>false</var>"
-              },
-              "openerTabId": {
-                "unsupported": true,
-                "type": "integer",
-                "minimum": 0,
-                "optional": true,
-                "description": "The ID of the tab that opened this tab. If specified, the opener tab must be in the same window as the newly created tab."
-              },
-              "cookieStoreId": {
-                "type": "string",
-                "optional": true,
-                "description": "The CookieStoreId for the tab that opened this tab."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "tab",
-                "$ref": "Tab",
-                "description": "Details about the created tab. Will contain the ID of the new tab."
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "duplicate",
-        "type": "function",
-        "description": "Duplicates a tab.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "description": "The ID of the tab which is to be duplicated."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "tab",
-                "optional": true,
-                "description": "Details about the duplicated tab. The $(ref:tabs.Tab) object doesn't contain <code>url</code>, <code>title</code> and <code>favIconUrl</code> if the <code>\"tabs\"</code> permission has not been requested.",
-                "$ref": "Tab"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "query",
-        "type": "function",
-        "description": "Gets all tabs that have the specified properties, or all tabs if no properties are specified.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "queryInfo",
-            "properties": {
-              "active": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tabs are active in their windows."
-              },
-              "pinned": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tabs are pinned."
-              },
-              "audible": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tabs are audible."
-              },
-              "muted": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tabs are muted."
-              },
-              "highlighted": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tabs are highlighted."
-              },
-              "currentWindow": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tabs are in the $(topic:current-window)[current window]."
-              },
-              "lastFocusedWindow": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tabs are in the last focused window."
-              },
-              "status": {
-                "$ref": "TabStatus",
-                "optional": true,
-                "description": "Whether the tabs have completed loading."
-              },
-              "title": {
-                "type": "string",
-                "optional": true,
-                "description": "Match page titles against a pattern."
-              },
-              "url": {
-                "choices": [
-                  {"type": "string"},
-                  {"type": "array", "items": {"type": "string"}}
-                ],
-                "optional": true,
-                "description": "Match tabs against one or more $(topic:match_patterns)[URL patterns]. Note that fragment identifiers are not matched."
-              },
-              "windowId": {
-                "type": "integer",
-                "optional": true,
-                "minimum": -2,
-                "description": "The ID of the parent window, or $(ref:windows.WINDOW_ID_CURRENT) for the $(topic:current-window)[current window]."
-              },
-              "windowType": {
-                "$ref": "WindowType",
-                "optional": true,
-                "description": "The type of window the tabs are in."
-              },
-              "index": {
-                "type": "integer",
-                "optional": true,
-                "minimum": 0,
-                "description": "The position of the tabs within their windows."
-              },
-              "cookieStoreId": {
-                "type": "string",
-                "optional": true,
-                "description": "The CookieStoreId used for the tab."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "result",
-                "type": "array",
-                "items": {
-                  "$ref": "Tab"
-                }
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "highlight",
-        "type": "function",
-        "description": "Highlights the given tabs.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "highlightInfo",
-            "properties": {
-               "windowId": {
-                 "type": "integer",
-                 "optional": true,
-                 "description": "The window that contains the tabs.",
-                 "minimum": -2
-               },
-               "tabs": {
-                 "description": "One or more tab indices to highlight.",
-                 "choices": [
-                   {"type": "array", "items": {"type": "integer", "minimum": 0}},
-                   {"type": "integer"}
-                 ]
-               }
-             }
-           },
-           {
-             "type": "function",
-             "name": "callback",
-             "optional": true,
-             "parameters": [
-               {
-                 "name": "window",
-                 "$ref": "windows.Window",
-                 "description": "Contains details about the window whose tabs were highlighted."
-               }
-             ]
-           }
-        ]
-      },
-      {
-        "name": "update",
-        "type": "function",
-        "description": "Modifies the properties of a tab. Properties that are not specified in <var>updateProperties</var> are not modified.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "optional": true,
-            "description": "Defaults to the selected tab of the $(topic:current-window)[current window]."
-          },
-          {
-            "type": "object",
-            "name": "updateProperties",
-            "properties": {
-              "url": {
-                "type": "string",
-                "optional": true,
-                "description": "A URL to navigate the tab to."
-              },
-              "active": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tab should be active. Does not affect whether the window is focused (see $(ref:windows.update))."
-              },
-              "highlighted": {
-                "unsupported": true,
-                "type": "boolean",
-                "optional": true,
-                "description": "Adds or removes the tab from the current selection."
-              },
-              "selected": {
-                "unsupported": true,
-                "deprecated": "Please use <em>highlighted</em>.",
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tab should be selected."
-              },
-              "pinned": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tab should be pinned."
-              },
-              "muted": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the tab should be muted."
-              },
-              "openerTabId": {
-                "unsupported": true,
-                "type": "integer",
-                "minimum": 0,
-                "optional": true,
-                "description": "The ID of the tab that opened this tab. If specified, the opener tab must be in the same window as this tab."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "tab",
-                "$ref": "Tab",
-                "optional": true,
-                "description": "Details about the updated tab. The $(ref:tabs.Tab) object doesn't contain <code>url</code>, <code>title</code> and <code>favIconUrl</code> if the <code>\"tabs\"</code> permission has not been requested."
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "move",
-        "type": "function",
-        "description": "Moves one or more tabs to a new position within its window, or to a new window. Note that tabs can only be moved to and from normal (window.type === \"normal\") windows.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "tabIds",
-            "description": "The tab or list of tabs to move.",
-            "choices": [
-              {"type": "integer", "minimum": 0},
-              {"type": "array", "items": {"type": "integer", "minimum": 0}}
-            ]
-          },
-          {
-            "type": "object",
-            "name": "moveProperties",
-            "properties": {
-              "windowId": {
-                "type": "integer",
-                "minimum": -2,
-                "optional": true,
-                "description": "Defaults to the window the tab is currently in."
-              },
-              "index": {
-                "type": "integer",
-                "minimum": -1,
-                "description": "The position to move the window to. -1 will place the tab at the end of the window."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "tabs",
-                "description": "Details about the moved tabs.",
-                "choices": [
-                  {"$ref": "Tab"},
-                  {"type": "array", "items": {"$ref": "Tab"}}
-                ]
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "reload",
-        "type": "function",
-        "description": "Reload a tab.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "optional": true,
-            "description": "The ID of the tab to reload; defaults to the selected tab of the current window."
-          },
-          {
-            "type": "object",
-            "name": "reloadProperties",
-            "optional": true,
-            "properties": {
-              "bypassCache": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether using any local cache. Default is false."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "remove",
-        "type": "function",
-        "description": "Closes one or more tabs.",
-        "async": "callback",
-        "parameters": [
-          {
-            "name": "tabIds",
-            "description": "The tab or list of tabs to close.",
-            "choices": [
-              {"type": "integer", "minimum": 0},
-              {"type": "array", "items": {"type": "integer", "minimum": 0}}
-            ]
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "detectLanguage",
-        "type": "function",
-        "description": "Detects the primary language of the content in a tab.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "optional": true,
-            "description": "Defaults to the active tab of the $(topic:current-window)[current window]."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "type": "string",
-                "name": "language",
-                "description": "An ISO language code such as <code>en</code> or <code>fr</code>. For a complete list of languages supported by this method, see <a href='http://src.chromium.org/viewvc/chrome/trunk/src/third_party/cld/languages/internal/languages.cc'>kLanguageInfoTable</a>. The 2nd to 4th columns will be checked and the first non-NULL value will be returned except for Simplified Chinese for which zh-CN will be returned. For an unknown language, <code>und</code> will be returned."
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "captureVisibleTab",
-        "type": "function",
-        "description": "Captures the visible area of the currently active tab in the specified window. You must have $(topic:declare_permissions)[&lt;all_urls&gt;] permission to use this method.",
-        "permissions": ["<all_urls>"],
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "windowId",
-            "minimum": -2,
-            "optional": true,
-            "description": "The target window. Defaults to the $(topic:current-window)[current window]."
-          },
-          {
-            "$ref": "extensionTypes.ImageDetails",
-            "name": "options",
-            "optional": true
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "type": "string",
-                "name": "dataUrl",
-                "description": "A data URL which encodes an image of the visible area of the captured tab. May be assigned to the 'src' property of an HTML Image element for display."
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "executeScript",
-        "type": "function",
-        "description": "Injects JavaScript code into a page. For details, see the $(topic:content_scripts)[programmatic injection] section of the content scripts doc.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "optional": true,
-            "description": "The ID of the tab in which to run the script; defaults to the active tab of the current window."
-          },
-          {
-            "$ref": "extensionTypes.InjectDetails",
-            "name": "details",
-            "description": "Details of the script to run."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "description": "Called after all the JavaScript has been executed.",
-            "parameters": [
-              {
-                "name": "result",
-                "optional": true,
-                "type": "array",
-                "items": {"type": "any"},
-                "description": "The result of the script in every injected frame."
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "insertCSS",
-        "type": "function",
-        "description": "Injects CSS into a page. For details, see the $(topic:content_scripts)[programmatic injection] section of the content scripts doc.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "optional": true,
-            "description": "The ID of the tab in which to insert the CSS; defaults to the active tab of the current window."
-          },
-          {
-            "$ref": "extensionTypes.InjectDetails",
-            "name": "details",
-            "description": "Details of the CSS text to insert."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "description": "Called when all the CSS has been inserted.",
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "removeCSS",
-        "type": "function",
-        "description": "Removes injected CSS from a page. For details, see the $(topic:content_scripts)[programmatic injection] section of the content scripts doc.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "optional": true,
-            "description": "The ID of the tab from which to remove the injected CSS; defaults to the active tab of the current window."
-          },
-          {
-            "$ref": "extensionTypes.InjectDetails",
-            "name": "details",
-            "description": "Details of the CSS text to remove."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "description": "Called when all the CSS has been removed.",
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "setZoom",
-        "type": "function",
-        "description": "Zooms a specified tab.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "optional": true,
-            "description": "The ID of the tab to zoom; defaults to the active tab of the current window."
-          },
-          {
-            "type": "number",
-            "name": "zoomFactor",
-            "description": "The new zoom factor. Use a value of 0 here to set the tab to its current default zoom factor. Values greater than zero specify a (possibly non-default) zoom factor for the tab."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "description": "Called after the zoom factor has been changed.",
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "getZoom",
-        "type": "function",
-        "description": "Gets the current zoom factor of a specified tab.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "optional": true,
-            "description": "The ID of the tab to get the current zoom factor from; defaults to the active tab of the current window."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "description": "Called with the tab's current zoom factor after it has been fetched.",
-            "parameters": [
-              {
-                "type": "number",
-                "name": "zoomFactor",
-                "description": "The tab's current zoom factor."
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "setZoomSettings",
-        "type": "function",
-        "description": "Sets the zoom settings for a specified tab, which define how zoom changes are handled. These settings are reset to defaults upon navigating the tab.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "optional": true,
-            "minimum": 0,
-            "description": "The ID of the tab to change the zoom settings for; defaults to the active tab of the current window."
-          },
-          {
-            "$ref": "ZoomSettings",
-            "name": "zoomSettings",
-            "description": "Defines how zoom changes are handled and at what scope."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "description": "Called after the zoom settings have been changed.",
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "getZoomSettings",
-        "type": "function",
-        "description": "Gets the current zoom settings of a specified tab.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "optional": true,
-            "minimum": 0,
-            "description": "The ID of the tab to get the current zoom settings from; defaults to the active tab of the current window."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "description": "Called with the tab's current zoom settings.",
-            "parameters": [
-              {
-                "$ref": "ZoomSettings",
-                "name": "zoomSettings",
-                "description": "The tab's current zoom settings."
-              }
-            ]
-          }
-        ]
-      }
-    ],
-    "events": [
-      {
-        "name": "onCreated",
-        "type": "function",
-        "description": "Fired when a tab is created. Note that the tab's URL may not be set at the time this event fired, but you can listen to onUpdated events to be notified when a URL is set.",
-        "parameters": [
-          {
-            "$ref": "Tab",
-            "name": "tab",
-            "description": "Details of the tab that was created."
-          }
-        ]
-      },
-      {
-        "name": "onUpdated",
-        "type": "function",
-        "description": "Fired when a tab is updated.",
-        "parameters": [
-          {"type": "integer", "name": "tabId", "minimum": 0},
-          {
-            "type": "object",
-            "name": "changeInfo",
-            "description": "Lists the changes to the state of the tab that was updated.",
-            "properties": {
-              "status": {
-                "type": "string",
-                "optional": true,
-                "description": "The status of the tab. Can be either <em>loading</em> or <em>complete</em>."
-              },
-              "url": {
-                "type": "string",
-                "optional": true,
-                "description": "The tab's URL if it has changed."
-              },
-              "pinned": {
-                "type": "boolean",
-                "optional": true,
-                "description": "The tab's new pinned state."
-              },
-              "audible": {
-                "type": "boolean",
-                "optional": true,
-                "description": "The tab's new audible state."
-              },
-              "mutedInfo": {
-                "$ref": "MutedInfo",
-                "optional": true,
-                "description": "The tab's new muted state and the reason for the change."
-              },
-              "favIconUrl": {
-                "type": "string",
-                "optional": true,
-                "description": "The tab's new favicon URL."
-              }
-            }
-          },
-          {
-            "$ref": "Tab",
-            "name": "tab",
-            "description": "Gives the state of the tab that was updated."
-          }
-        ]
-      },
-      {
-        "name": "onMoved",
-        "type": "function",
-        "description": "Fired when a tab is moved within a window. Only one move event is fired, representing the tab the user directly moved. Move events are not fired for the other tabs that must move in response. This event is not fired when a tab is moved between windows. For that, see $(ref:tabs.onDetached).",
-        "parameters": [
-          {"type": "integer", "name": "tabId", "minimum": 0},
-          {
-            "type": "object",
-            "name": "moveInfo",
-            "properties": {
-              "windowId": {"type": "integer", "minimum": 0},
-              "fromIndex": {"type": "integer", "minimum": 0},
-              "toIndex": {"type": "integer", "minimum": 0}
-            }
-          }
-        ]
-      },
-      {
-        "name": "onSelectionChanged",
-        "deprecated": "Please use $(ref:tabs.onActivated).",
-        "unsupported": true,
-        "type": "function",
-        "description": "Fires when the selected tab in a window changes.",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "description": "The ID of the tab that has become active."
-          },
-          {
-            "type": "object",
-            "name": "selectInfo",
-            "properties": {
-              "windowId": {
-                "type": "integer",
-                "minimum": 0,
-                "description": "The ID of the window the selected tab changed inside of."
-              }
-            }
-          }
-        ]
-      },
-      {
-        "name": "onActiveChanged",
-        "deprecated": "Please use $(ref:tabs.onActivated).",
-        "unsupported": true,
-        "type": "function",
-        "description": "Fires when the selected tab in a window changes. Note that the tab's URL may not be set at the time this event fired, but you can listen to $(ref:tabs.onUpdated) events to be notified when a URL is set.",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "tabId",
-            "minimum": 0,
-            "description": "The ID of the tab that has become active."
-          },
-          {
-            "type": "object",
-            "name": "selectInfo",
-            "properties": {
-              "windowId": {
-                "type": "integer",
-                "minimum": 0,
-                "description": "The ID of the window the selected tab changed inside of."
-              }
-            }
-          }
-        ]
-      },
-      {
-        "name": "onActivated",
-        "type": "function",
-        "description": "Fires when the active tab in a window changes. Note that the tab's URL may not be set at the time this event fired, but you can listen to onUpdated events to be notified when a URL is set.",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "activeInfo",
-            "properties": {
-              "tabId": {
-                "type": "integer",
-                "minimum": 0,
-                "description": "The ID of the tab that has become active."
-              },
-              "windowId": {
-                "type": "integer",
-                "minimum": 0,
-                "description": "The ID of the window the active tab changed inside of."
-              }
-            }
-          }
-        ]
-      },
-      {
-        "name": "onHighlightChanged",
-        "deprecated": "Please use $(ref:tabs.onHighlighted).",
-        "unsupported": true,
-        "type": "function",
-        "description": "Fired when the highlighted or selected tabs in a window changes.",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "selectInfo",
-            "properties": {
-              "windowId": {
-                "type": "integer",
-                "minimum": 0,
-                "description": "The window whose tabs changed."
-              },
-              "tabIds": {
-                "type": "array",
-                "items": {"type": "integer", "minimum": 0},
-                "description": "All highlighted tabs in the window."
-              }
-            }
-          }
-        ]
-      },
-      {
-        "name": "onHighlighted",
-        "type": "function",
-        "description": "Fired when the highlighted or selected tabs in a window changes.",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "highlightInfo",
-            "properties": {
-              "windowId": {
-                "type": "integer",
-                "minimum": 0,
-                "description": "The window whose tabs changed."
-              },
-              "tabIds": {
-                "type": "array",
-                "items": {"type": "integer", "minimum": 0},
-                "description": "All highlighted tabs in the window."
-              }
-            }
-          }
-        ]
-      },
-      {
-        "name": "onDetached",
-        "type": "function",
-        "description": "Fired when a tab is detached from a window, for example because it is being moved between windows.",
-        "parameters": [
-          {"type": "integer", "name": "tabId", "minimum": 0},
-          {
-            "type": "object",
-            "name": "detachInfo",
-            "properties": {
-              "oldWindowId": {"type": "integer", "minimum": 0},
-              "oldPosition": {"type": "integer", "minimum": 0}
-            }
-          }
-        ]
-      },
-      {
-        "name": "onAttached",
-        "type": "function",
-        "description": "Fired when a tab is attached to a window, for example because it was moved between windows.",
-        "parameters": [
-          {"type": "integer", "name": "tabId", "minimum": 0},
-          {
-            "type": "object",
-            "name": "attachInfo",
-            "properties": {
-              "newWindowId": {"type": "integer", "minimum": 0},
-              "newPosition": {"type": "integer", "minimum": 0}
-            }
-          }
-        ]
-      },
-      {
-        "name": "onRemoved",
-        "type": "function",
-        "description": "Fired when a tab is closed.",
-        "parameters": [
-          {"type": "integer", "name": "tabId", "minimum": 0},
-          {
-            "type": "object",
-            "name": "removeInfo",
-            "properties": {
-              "windowId": {"type": "integer", "minimum": 0, "description": "The window whose tab is closed." },
-              "isWindowClosing": {"type": "boolean", "description": "True when the tab is being closed because its window is being closed." }
-            }
-          }
-        ]
-      },
-      {
-        "name": "onReplaced",
-        "type": "function",
-        "description": "Fired when a tab is replaced with another tab due to prerendering or instant.",
-        "parameters": [
-          {"type": "integer", "name": "addedTabId", "minimum": 0},
-          {"type": "integer", "name": "removedTabId", "minimum": 0}
-        ]
-      },
-      {
-        "name": "onZoomChange",
-        "type": "function",
-        "description": "Fired when a tab is zoomed.",
-        "parameters": [{
-          "type": "object",
-          "name": "ZoomChangeInfo",
-          "properties": {
-            "tabId": {"type": "integer", "minimum": 0},
-            "oldZoomFactor": {"type": "number"},
-            "newZoomFactor": {"type": "number"},
-            "zoomSettings": {"$ref": "ZoomSettings"}
-          }
-        }]
-      }
-    ]
-  }
-]
diff --git a/application/basilisk/components/webextensions/schemas/windows.json b/application/basilisk/components/webextensions/schemas/windows.json
deleted file mode 100644
index 8453358b5..000000000
--- a/application/basilisk/components/webextensions/schemas/windows.json
+++ /dev/null
@@ -1,508 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-  {
-    "namespace": "windows",
-    "description": "Use the <code>browser.windows</code> API to interact with browser windows. You can use this API to create, modify, and rearrange windows in the browser.",
-    "types": [
-      {
-        "id": "WindowType",
-        "type": "string",
-        "description": "The type of browser window this is. Under some circumstances a Window may not be assigned type property, for example when querying closed windows from the $(ref:sessions) API.",
-        "enum": ["normal", "popup", "panel", "app", "devtools"]
-      },
-      {
-        "id": "WindowState",
-        "type": "string",
-        "description": "The state of this browser window. Under some circumstances a Window may not be assigned state property, for example when querying closed windows from the $(ref:sessions) API.",
-        "enum": ["normal", "minimized", "maximized", "fullscreen", "docked"]
-      },
-      {
-        "id": "Window",
-        "type": "object",
-        "properties": {
-          "id": {
-            "type": "integer",
-            "optional": true,
-            "minimum": 0,
-            "description": "The ID of the window. Window IDs are unique within a browser session. Under some circumstances a Window may not be assigned an ID, for example when querying windows using the $(ref:sessions) API, in which case a session ID may be present."
-          },
-          "focused": {
-            "type": "boolean",
-            "description": "Whether the window is currently the focused window."
-          },
-          "top": {
-            "type": "integer",
-            "optional": true,
-            "description": "The offset of the window from the top edge of the screen in pixels. Under some circumstances a Window may not be assigned top property, for example when querying closed windows from the $(ref:sessions) API."
-          },
-          "left": {
-            "type": "integer",
-            "optional": true,
-            "description": "The offset of the window from the left edge of the screen in pixels. Under some circumstances a Window may not be assigned left property, for example when querying closed windows from the $(ref:sessions) API."
-          },
-          "width": {
-            "type": "integer",
-            "optional": true,
-            "description": "The width of the window, including the frame, in pixels. Under some circumstances a Window may not be assigned width property, for example when querying closed windows from the $(ref:sessions) API."
-          },
-          "height": {
-            "type": "integer",
-            "optional": true,
-            "description": "The height of the window, including the frame, in pixels. Under some circumstances a Window may not be assigned height property, for example when querying closed windows from the $(ref:sessions) API."
-          },
-          "tabs": {
-            "type": "array",
-            "items": { "$ref": "tabs.Tab" },
-            "optional": true,
-            "description": "Array of $(ref:tabs.Tab) objects representing the current tabs in the window."
-          },
-          "incognito": {
-            "type": "boolean",
-            "description": "Whether the window is incognito."
-          },
-          "type": {
-            "$ref": "WindowType",
-            "optional": true,
-            "description": "The type of browser window this is."
-          },
-          "state": {
-            "$ref": "WindowState",
-            "optional": true,
-            "description": "The state of this browser window."
-          },
-          "alwaysOnTop": {
-            "type": "boolean",
-            "description": "Whether the window is set to be always on top."
-          },
-          "sessionId": {
-            "type": "string",
-            "optional": true,
-            "description": "The session ID used to uniquely identify a Window obtained from the $(ref:sessions) API."
-          }
-        }
-      },
-      {
-        "id": "CreateType",
-        "type": "string",
-        "description": "Specifies what type of browser window to create. The 'panel' and 'detached_panel' types create a popup unless the '--enable-panels' flag is set.",
-        "enum": ["normal", "popup", "panel", "detached_panel"]
-      }
-    ],
-    "properties": {
-      "WINDOW_ID_NONE": {
-        "value": -1,
-        "description": "The windowId value that represents the absence of a browser window."
-      },
-      "WINDOW_ID_CURRENT": {
-        "value": -2,
-        "description": "The windowId value that represents the $(topic:current-window)[current window]."
-      }
-    },
-    "functions": [
-      {
-        "name": "get",
-        "type": "function",
-        "description": "Gets details about a window.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "windowId",
-            "minimum": -2
-          },
-          {
-            "type": "object",
-            "name": "getInfo",
-            "optional": true,
-            "description": "",
-            "properties": {
-              "populate": {
-                "type": "boolean",
-                "optional": true,
-                "description": "If true, the $(ref:windows.Window) object will have a <var>tabs</var> property that contains a list of the $(ref:tabs.Tab) objects. The <code>Tab</code> objects only contain the <code>url</code>, <code>title</code> and <code>favIconUrl</code> properties if the extension's manifest file includes the <code>\"tabs\"</code> permission."
-              },
-              "windowTypes": {
-                "type": "array",
-                "items": {
-                  "$ref": "WindowType"
-                },
-                "optional": true,
-                "description": "If set, the $(ref:windows.Window) returned will be filtered based on its type. If unset the default filter is set to <code>['app', 'normal', 'panel', 'popup']</code>, with <code>'app'</code> and <code>'panel'</code> window types limited to the extension's own windows."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "window",
-                "$ref": "Window"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getCurrent",
-        "type": "function",
-        "description": "Gets the $(topic:current-window)[current window].",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "getInfo",
-            "optional": true,
-            "description": "",
-            "properties": {
-              "populate": {
-                "type": "boolean",
-                "optional": true,
-                "description": "If true, the $(ref:windows.Window) object will have a <var>tabs</var> property that contains a list of the $(ref:tabs.Tab) objects. The <code>Tab</code> objects only contain the <code>url</code>, <code>title</code> and <code>favIconUrl</code> properties if the extension's manifest file includes the <code>\"tabs\"</code> permission."
-              },
-              "windowTypes": {
-                "type": "array",
-                "items": { "$ref": "WindowType" },
-                "optional": true,
-                "description": "If set, the $(ref:windows.Window) returned will be filtered based on its type. If unset the default filter is set to <code>['app', 'normal', 'panel', 'popup']</code>, with <code>'app'</code> and <code>'panel'</code> window types limited to the extension's own windows."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "window",
-                "$ref": "Window"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getLastFocused",
-        "type": "function",
-        "description": "Gets the window that was most recently focused &mdash; typically the window 'on top'.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "getInfo",
-            "optional": true,
-            "description": "",
-            "properties": {
-              "populate": {
-                "type": "boolean",
-                "optional": true,
-                "description": "If true, the $(ref:windows.Window) object will have a <var>tabs</var> property that contains a list of the $(ref:tabs.Tab) objects. The <code>Tab</code> objects only contain the <code>url</code>, <code>title</code> and <code>favIconUrl</code> properties if the extension's manifest file includes the <code>\"tabs\"</code> permission."
-              },
-              "windowTypes": {
-                "type": "array",
-                "items": { "$ref": "WindowType" },
-                "optional": true,
-                "description": "If set, the $(ref:windows.Window) returned will be filtered based on its type. If unset the default filter is set to <code>['app', 'normal', 'panel', 'popup']</code>, with <code>'app'</code> and <code>'panel'</code> window types limited to the extension's own windows."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "window",
-                "$ref": "Window"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "getAll",
-        "type": "function",
-        "description": "Gets all windows.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "getInfo",
-            "optional": true,
-            "description": "",
-            "properties": {
-              "populate": {
-                "type": "boolean",
-                "optional": true,
-                "description": "If true, each $(ref:windows.Window) object will have a <var>tabs</var> property that contains a list of the $(ref:tabs.Tab) objects for that window. The <code>Tab</code> objects only contain the <code>url</code>, <code>title</code> and <code>favIconUrl</code> properties if the extension's manifest file includes the <code>\"tabs\"</code> permission."
-              },
-              "windowTypes": {
-                "type": "array",
-                "items": { "$ref": "WindowType" },
-                "optional": true,
-                "description": "If set, the $(ref:windows.Window) returned will be filtered based on its type. If unset the default filter is set to <code>['app', 'normal', 'panel', 'popup']</code>, with <code>'app'</code> and <code>'panel'</code> window types limited to the extension's own windows."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "parameters": [
-              {
-                "name": "windows",
-                "type": "array",
-                "items": { "$ref": "Window" }
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "create",
-        "type": "function",
-        "description": "Creates (opens) a new browser with any optional sizing, position or default URL provided.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "createData",
-            "optional": true,
-            "default": {},
-            "properties": {
-              "url": {
-                "description": "A URL or array of URLs to open as tabs in the window. Fully-qualified URLs must include a scheme (i.e. 'http://www.google.com', not 'www.google.com'). Relative URLs will be relative to the current page within the extension. Defaults to the New Tab Page.",
-                "optional": true,
-                "choices": [
-                  { "type": "string", "format": "relativeUrl" },
-                  {
-                    "type": "array",
-                    "items": { "type": "string", "format": "relativeUrl" }
-                  }
-                ]
-              },
-              "tabId": {
-                "type": "integer",
-                "minimum": 0,
-                "optional": true,
-                "description": "The id of the tab for which you want to adopt to the new window."
-              },
-              "left": {
-                "type": "integer",
-                "optional": true,
-                "description": "The number of pixels to position the new window from the left edge of the screen. If not specified, the new window is offset naturally from the last focused window. This value is ignored for panels."
-              },
-              "top": {
-                "type": "integer",
-                "optional": true,
-                "description": "The number of pixels to position the new window from the top edge of the screen. If not specified, the new window is offset naturally from the last focused window. This value is ignored for panels."
-              },
-              "width": {
-                "type": "integer",
-                "minimum": 0,
-                "optional": true,
-                "description": "The width in pixels of the new window, including the frame. If not specified defaults to a natural width."
-              },
-              "height": {
-                "type": "integer",
-                "minimum": 0,
-                "optional": true,
-                "description": "The height in pixels of the new window, including the frame. If not specified defaults to a natural height."
-              },
-              "focused": {
-                "unsupported": true,
-                "type": "boolean",
-                "optional": true,
-                "description": "If true, opens an active window. If false, opens an inactive window."
-              },
-              "incognito": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Whether the new window should be an incognito window."
-              },
-              "type": {
-                "$ref": "CreateType",
-                "optional": true,
-                "description": "Specifies what type of browser window to create. The 'panel' and 'detached_panel' types create a popup unless the '--enable-panels' flag is set."
-              },
-              "state": {
-                "$ref": "WindowState",
-                "optional": true,
-                "description": "The initial state of the window. The 'minimized', 'maximized' and 'fullscreen' states cannot be combined with 'left', 'top', 'width' or 'height'."
-              },
-              "allowScriptsToClose": {
-                "type": "boolean",
-                "optional": true,
-                "description": "Allow scripts to close the window."
-              }
-            },
-            "optional": true
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "window",
-                "$ref": "Window",
-                "description": "Contains details about the created window.",
-                "optional": true
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "update",
-        "type": "function",
-        "description": "Updates the properties of a window. Specify only the properties that you want to change; unspecified properties will be left unchanged.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "windowId",
-            "minimum": -2
-          },
-          {
-            "type": "object",
-            "name": "updateInfo",
-            "properties": {
-              "left": {
-                "type": "integer",
-                "optional": true,
-                "description": "The offset from the left edge of the screen to move the window to in pixels. This value is ignored for panels."
-              },
-              "top": {
-                "type": "integer",
-                "optional": true,
-                "description": "The offset from the top edge of the screen to move the window to in pixels. This value is ignored for panels."
-              },
-              "width": {
-                "type": "integer",
-                "minimum": 0,
-                "optional": true,
-                "description": "The width to resize the window to in pixels. This value is ignored for panels."
-              },
-              "height": {
-                "type": "integer",
-                "minimum": 0,
-                "optional": true,
-                "description": "The height to resize the window to in pixels. This value is ignored for panels."
-              },
-              "focused": {
-                "type": "boolean",
-                "optional": true,
-                "description": "If true, brings the window to the front. If false, brings the next window in the z-order to the front."
-              },
-              "drawAttention": {
-                "type": "boolean",
-                "optional": true,
-                "description": "If true, causes the window to be displayed in a manner that draws the user's attention to the window, without changing the focused window. The effect lasts until the user changes focus to the window. This option has no effect if the window already has focus. Set to false to cancel a previous draw attention request."
-              },
-              "state": {
-                "$ref": "WindowState",
-                "optional": true,
-                "description": "The new state of the window. The 'minimized', 'maximized' and 'fullscreen' states cannot be combined with 'left', 'top', 'width' or 'height'."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": [
-              {
-                "name": "window",
-                "$ref": "Window"
-              }
-            ]
-          }
-        ]
-      },
-      {
-        "name": "remove",
-        "type": "function",
-        "description": "Removes (closes) a window, and all the tabs inside it.",
-        "async": "callback",
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "windowId",
-            "minimum": 0
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "parameters": []
-          }
-        ]
-      }
-    ],
-    "events": [
-      {
-        "name": "onCreated",
-        "type": "function",
-        "description": "Fired when a window is created.",
-        "filters": [
-          {
-            "name": "windowTypes",
-            "type": "array",
-            "items": { "$ref": "WindowType" },
-            "description": "Conditions that the window's type being created must satisfy. By default it will satisfy <code>['app', 'normal', 'panel', 'popup']</code>, with <code>'app'</code> and <code>'panel'</code> window types limited to the extension's own windows."
-          }
-        ],
-        "parameters": [
-          {
-            "$ref": "Window",
-            "name": "window",
-            "description": "Details of the window that was created."
-          }
-        ]
-      },
-      {
-        "name": "onRemoved",
-        "type": "function",
-        "description": "Fired when a window is removed (closed).",
-        "filters": [
-          {
-            "name": "windowTypes",
-            "type": "array",
-            "items": { "$ref": "WindowType" },
-            "description": "Conditions that the window's type being removed must satisfy. By default it will satisfy <code>['app', 'normal', 'panel', 'popup']</code>, with <code>'app'</code> and <code>'panel'</code> window types limited to the extension's own windows."
-          }
-        ],
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "windowId",
-            "minimum": 0,
-            "description": "ID of the removed window."
-          }
-        ]
-      },
-      {
-        "name": "onFocusChanged",
-        "type": "function",
-        "description": "Fired when the currently focused window changes. Will be $(ref:windows.WINDOW_ID_NONE) if all browser windows have lost focus. Note: On some Linux window managers, WINDOW_ID_NONE will always be sent immediately preceding a switch from one browser window to another.",
-        "filters": [
-          {
-            "name": "windowTypes",
-            "type": "array",
-            "items": { "$ref": "WindowType" },
-            "description": "Conditions that the window's type being removed must satisfy. By default it will satisfy <code>['app', 'normal', 'panel', 'popup']</code>, with <code>'app'</code> and <code>'panel'</code> window types limited to the extension's own windows."
-          }
-        ],
-        "parameters": [
-          {
-            "type": "integer",
-            "name": "windowId",
-            "minimum": -1,
-            "description": "ID of the newly focused window."
-          }
-        ]
-      }
-    ]
-  }
-]
diff --git a/application/basilisk/configure.in b/application/basilisk/configure.in
index 8527d218c..4e7a06390 100644
--- a/application/basilisk/configure.in
+++ b/application/basilisk/configure.in
@@ -16,16 +16,3 @@ AC_SUBST(MC_BASILISK)
 
 dnl Optional parts of the build.
 
-dnl ========================================================
-dnl = Disable WebExtensions
-dnl ========================================================
-MOZ_ARG_DISABLE_BOOL(webextensions,
-[  --disable-webextensions            Disable WebExtensions],
-    MOZ_WEBEXTENSIONS=,
-    MOZ_WEBEXTENSIONS=1)
-
-if test -n "$MOZ_WEBEXTENSIONS"; then
-    AC_DEFINE(MOZ_WEBEXTENSIONS)
-fi
-
-AC_SUBST(MOZ_WEBEXTENSIONS)
\ No newline at end of file
diff --git a/application/basilisk/confvars.sh b/application/basilisk/confvars.sh
index cd18bdb94..2df7e826a 100644
--- a/application/basilisk/confvars.sh
+++ b/application/basilisk/confvars.sh
@@ -15,10 +15,6 @@ if test "$OS_ARCH" = "WINNT" -o \
   MOZ_BUNDLED_FONTS=1
 fi
 
-if test "$OS_ARCH" = "WINNT"; then
-  MOZ_MAINTENANCE_SERVICE=
-fi
-
 # For Basilisk we want to use 52.9.YYYY.MM.DD as MOZ_APP_VERSION in release
 # builds so add-on developers have something to target while maintaining
 # Firefox compatiblity.
@@ -55,7 +51,6 @@ MOZ_APP_STATIC_INI=1
 MOZ_WEBGL_CONFORMANT=1
 MOZ_JSDOWNLOADS=1
 MOZ_WEBRTC=1
-MOZ_WEBEXTENSIONS=
 MOZ_DEVTOOLS=1
 MOZ_SERVICES_COMMON=1
 MOZ_SERVICES_SYNC=1
diff --git a/application/basilisk/extensions/pdfjs/content/PdfJs.jsm b/application/basilisk/extensions/pdfjs/content/PdfJs.jsm
index b3d85436e..7dc01c398 100644
--- a/application/basilisk/extensions/pdfjs/content/PdfJs.jsm
+++ b/application/basilisk/extensions/pdfjs/content/PdfJs.jsm
@@ -52,23 +52,6 @@ XPCOMUtils.defineLazyModuleGetter(this, 'PdfjsChromeUtils',
                                   'resource://pdf.js/PdfjsChromeUtils.jsm');
 XPCOMUtils.defineLazyModuleGetter(this, 'PdfjsContentUtils',
                                   'resource://pdf.js/PdfjsContentUtils.jsm');
-
-function getBoolPref(aPref, aDefaultValue) {
-  try {
-    return Services.prefs.getBoolPref(aPref);
-  } catch (ex) {
-    return aDefaultValue;
-  }
-}
-
-function getIntPref(aPref, aDefaultValue) {
-  try {
-    return Services.prefs.getIntPref(aPref);
-  } catch (ex) {
-    return aDefaultValue;
-  }
-}
-
 function isDefaultHandler() {
  if (Services.appinfo.processType === Services.appinfo.PROCESS_TYPE_CONTENT) {
    return PdfjsContentUtils.isDefaultHandlerApp();
@@ -172,7 +155,7 @@ var PdfJs = {
     }
     this._initialized = true;
 
-    if (!getBoolPref(PREF_DISABLED, true)) {
+    if (!Services.prefs.getBoolPref(PREF_DISABLED, true)) {
       this._migrate();
     }
 
@@ -209,7 +192,7 @@ var PdfJs = {
 
   _migrate: function migrate() {
     const VERSION = 2;
-    var currentVersion = getIntPref(PREF_MIGRATION_VERSION, 0);
+    var currentVersion = Services.prefs.getIntPref(PREF_MIGRATION_VERSION, 0);
     if (currentVersion >= VERSION) {
       return;
     }
@@ -284,7 +267,7 @@ var PdfJs = {
    * @return {boolean} Whether or not it's enabled.
    */
   get enabled() {
-    var disabled = getBoolPref(PREF_DISABLED, true);
+    var disabled = Services.prefs.getBoolPref(PREF_DISABLED, true);
     if (disabled) {
       return false;
     }
diff --git a/application/basilisk/extensions/pdfjs/content/PdfStreamConverter.jsm b/application/basilisk/extensions/pdfjs/content/PdfStreamConverter.jsm
index 5e337bbc5..b5b21f214 100644
--- a/application/basilisk/extensions/pdfjs/content/PdfStreamConverter.jsm
+++ b/application/basilisk/extensions/pdfjs/content/PdfStreamConverter.jsm
@@ -78,22 +78,6 @@ function getFindBar(domWindow) {
   }
 }
 
-function getBoolPref(pref, def) {
-  try {
-    return Services.prefs.getBoolPref(pref);
-  } catch (ex) {
-    return def;
-  }
-}
-
-function getIntPref(pref, def) {
-  try {
-    return Services.prefs.getIntPref(pref);
-  } catch (ex) {
-    return def;
-  }
-}
-
 function getStringPref(pref, def) {
   try {
     return Services.prefs.getComplexValue(pref, Ci.nsISupportsString).data;
@@ -103,7 +87,7 @@ function getStringPref(pref, def) {
 }
 
 function log(aMsg) {
-  if (!getBoolPref(PREF_PREFIX + '.pdfBugEnabled', false)) {
+  if (!Services.prefs.getBoolPref(PREF_PREFIX + '.pdfBugEnabled', false)) {
     return;
   }
   var msg = 'PdfStreamConverter.js: ' + (aMsg.join ? aMsg.join('') : aMsg);
@@ -359,17 +343,17 @@ ChromeActions.prototype = {
     return !!findBar && ('updateControlState' in findBar);
   },
   supportsDocumentFonts: function() {
-    var prefBrowser = getIntPref('browser.display.use_document_fonts', 1);
-    var prefGfx = getBoolPref('gfx.downloadable_fonts.enabled', true);
+    var prefBrowser = Services.prefs.getIntPref('browser.display.use_document_fonts', 1);
+    var prefGfx = Services.prefs.getBoolPref('gfx.downloadable_fonts.enabled', true);
     return (!!prefBrowser && prefGfx);
   },
   supportsDocumentColors: function() {
-    return getIntPref('browser.display.document_color_use', 0) !== 2;
+    return Services.prefs.getIntPref('browser.display.document_color_use', 0) !== 2;
   },
   supportedMouseWheelZoomModifierKeys: function() {
     return {
-      ctrlKey: getIntPref('mousewheel.with_control.action', 3) === 3,
-      metaKey: getIntPref('mousewheel.with_meta.action', 1) === 3,
+      ctrlKey: Services.prefs.getIntPref('mousewheel.with_control.action', 3) === 3,
+      metaKey: Services.prefs.getIntPref('mousewheel.with_meta.action', 1) === 3,
     };
   },
   reportTelemetry: function (data) {
@@ -531,10 +515,10 @@ ChromeActions.prototype = {
       prefName = (PREF_PREFIX + '.' + key);
       switch (typeof prefValue) {
         case 'boolean':
-          currentPrefs[key] = getBoolPref(prefName, prefValue);
+          currentPrefs[key] = Services.prefs.getBoolPref(prefName, prefValue);
           break;
         case 'number':
-          currentPrefs[key] = getIntPref(prefName, prefValue);
+          currentPrefs[key] = Services.prefs.getIntPref(prefName, prefValue);
           break;
         case 'string':
           currentPrefs[key] = getStringPref(prefName, prefValue);
@@ -921,16 +905,16 @@ PdfStreamConverter.prototype = {
       } catch (e) {}
 
       var hash = aRequest.URI.ref;
-      var isPDFBugEnabled = getBoolPref(PREF_PREFIX + '.pdfBugEnabled', false);
+      var isPDFBugEnabled = Services.prefs.getBoolPref(PREF_PREFIX + '.pdfBugEnabled', false);
       rangeRequest = contentEncoding === 'identity' &&
                      acceptRanges === 'bytes' &&
                      aRequest.contentLength >= 0 &&
-                     !getBoolPref(PREF_PREFIX + '.disableRange', false) &&
+                     !Services.prefs.getBoolPref(PREF_PREFIX + '.disableRange', false) &&
                      (!isPDFBugEnabled ||
                       hash.toLowerCase().indexOf('disablerange=true') < 0);
       streamRequest = contentEncoding === 'identity' &&
                       aRequest.contentLength >= 0 &&
-                      !getBoolPref(PREF_PREFIX + '.disableStream', false) &&
+                      !Services.prefs.getBoolPref(PREF_PREFIX + '.disableStream', false) &&
                       (!isPDFBugEnabled ||
                        hash.toLowerCase().indexOf('disablestream=true') < 0);
     }
diff --git a/application/basilisk/installer/package-manifest.in b/application/basilisk/installer/package-manifest.in
index cebcb6796..4ea50408a 100644
--- a/application/basilisk/installer/package-manifest.in
+++ b/application/basilisk/installer/package-manifest.in
@@ -397,15 +397,9 @@
 @RESPATH@/components/addonManager.js
 @RESPATH@/components/amContentHandler.js
 @RESPATH@/components/amInstallTrigger.js
-#ifdef MOZ_WEBEXTENSIONS
-@RESPATH@/components/amWebAPI.js
-#endif
 @RESPATH@/components/amWebInstallListener.js
 @RESPATH@/components/nsBlocklistService.js
 @RESPATH@/components/blocklist.manifest
-#ifdef MOZ_WEBEXTENSIONS
-@RESPATH@/components/nsBlocklistServiceContent.js
-#endif
 #ifdef MOZ_UPDATER
 @RESPATH@/components/nsUpdateService.manifest
 @RESPATH@/components/nsUpdateService.js
@@ -554,12 +548,6 @@
 @RESPATH@/components/TestInterfaceJSMaplike.js
 #endif
 
-#ifdef MOZ_WEBEXTENSIONS
-; [Extensions]
-@RESPATH@/components/extensions-toolkit.manifest
-@RESPATH@/browser/components/extensions-browser.manifest
-#endif
-
 ; Modules
 @RESPATH@/browser/modules/*
 @RESPATH@/modules/*
@@ -721,13 +709,6 @@
 @RESPATH@/components/pipnss.xpt
 @RESPATH@/components/pippki.xpt
 
-; for Solaris SPARC
-#ifdef SOLARIS
-bin/libfreebl_32fpu_3.so
-bin/libfreebl_32int_3.so
-bin/libfreebl_32int64_3.so
-#endif
-
 ; [Updater]
 ;
 #ifdef MOZ_UPDATER
@@ -738,13 +719,6 @@ bin/libfreebl_32int64_3.so
 #endif
 #endif
 
-; [MaintenanceService]
-;
-#ifdef MOZ_MAINTENANCE_SERVICE
-@BINPATH@/maintenanceservice.exe
-@BINPATH@/maintenanceservice_installer.exe
-#endif
-
 @RESPATH@/components/dom_audiochannel.xpt
 
 ; Shutdown Terminator
diff --git a/application/basilisk/installer/windows/Makefile.in b/application/basilisk/installer/windows/Makefile.in
index bab6ded1a..5326ab897 100644
--- a/application/basilisk/installer/windows/Makefile.in
+++ b/application/basilisk/installer/windows/Makefile.in
@@ -14,12 +14,6 @@ INSTALLER_FILES = \
 	nsis/shared.nsh \
 	$(NULL)
 
-ifdef MOZ_MAINTENANCE_SERVICE
-INSTALLER_FILES += \
-	nsis/maintenanceservice_installer.nsi \
-	$(NULL)
-endif
-
 BRANDING_FILES = \
 	branding.nsi \
 	appname.bmp \
diff --git a/application/basilisk/installer/windows/nsis/defines.nsi.in b/application/basilisk/installer/windows/nsis/defines.nsi.in
index dbb58ca33..8981bbde8 100644
--- a/application/basilisk/installer/windows/nsis/defines.nsi.in
+++ b/application/basilisk/installer/windows/nsis/defines.nsi.in
@@ -51,10 +51,6 @@
 
 !define MinSupportedCPU "SSE2"
 
-#ifdef MOZ_MAINTENANCE_SERVICE
-!define MOZ_MAINTENANCE_SERVICE
-#endif
-
 # File details shared by both the installer and uninstaller
 VIProductVersion "1.0.0.0"
 VIAddVersionKey "ProductName"     "${BrandShortName}"
diff --git a/application/basilisk/installer/windows/nsis/installer.nsi b/application/basilisk/installer/windows/nsis/installer.nsi
index 994c09279..6b4b5ab9a 100644
--- a/application/basilisk/installer/windows/nsis/installer.nsi
+++ b/application/basilisk/installer/windows/nsis/installer.nsi
@@ -165,11 +165,6 @@ Page custom preOptions leaveOptions
 !define MUI_DIRECTORYPAGE_VERIFYONLEAVE
 !insertmacro MUI_PAGE_DIRECTORY
 
-; Custom Components Page
-!ifdef MOZ_MAINTENANCE_SERVICE
-Page custom preComponents leaveComponents
-!endif
-
 ; Custom Shortcuts Page
 Page custom preShortcuts leaveShortcuts
 
@@ -427,41 +422,6 @@ Section "-Application" APP_IDX
     ${EndIf}
   ${EndIf}
 
-!ifdef MOZ_MAINTENANCE_SERVICE
-  ; If the maintenance service page was displayed then a value was already 
-  ; explicitly selected for installing the maintenance service and 
-  ; and so InstallMaintenanceService will already be 0 or 1.
-  ; If the maintenance service page was not displayed then 
-  ; InstallMaintenanceService will be equal to "".
-  ${If} $InstallMaintenanceService == ""
-    Call IsUserAdmin
-    Pop $R0
-    ${If} $R0 == "true"
-    ; Only proceed if we have HKLM write access
-    ${AndIf} $TmpVal == "HKLM"
-      ; On Windows < XP SP3 we do not install the maintenance service.
-      ${If} ${IsWinXP}
-      ${AndIf} ${AtMostServicePack} 2
-        StrCpy $InstallMaintenanceService "0"
-      ${Else}
-        ; The user is an admin, so we should default to installing the service.
-        StrCpy $InstallMaintenanceService "1"
-      ${EndIf}
-    ${Else}
-      ; The user is not admin, so we can't install the service.
-      StrCpy $InstallMaintenanceService "0"
-    ${EndIf}
-  ${EndIf}
-
-  ${If} $InstallMaintenanceService == "1"
-    ; The user wants to install the maintenance service, so execute
-    ; the pre-packaged maintenance service installer. 
-    ; This option can only be turned on if the user is an admin so there
-    ; is no need to use ExecShell w/ verb runas to enforce elevated.
-    nsExec::Exec "$\"$INSTDIR\maintenanceservice_installer.exe$\""
-  ${EndIf}
-!endif
-
   ; These need special handling on uninstall since they may be overwritten by
   ; an install into a different location.
   StrCpy $0 "Software\Microsoft\Windows\CurrentVersion\App Paths\${FileMainEXE}"
@@ -578,13 +538,6 @@ Section "-Application" APP_IDX
       ${EndIf}
     ${EndUnless}
   ${EndIf}
-
-!ifdef MOZ_MAINTENANCE_SERVICE
-  ${If} $TmpVal == "HKLM"
-    ; Add the registry keys for allowed certificates.
-    ${AddMaintCertKeys}
-  ${EndIf}
-!endif
 SectionEnd
 
 ; Cleanup operations to perform at the end of the installation.
@@ -948,59 +901,6 @@ Function leaveShortcuts
   ${EndIf}
 FunctionEnd
 
-!ifdef MOZ_MAINTENANCE_SERVICE
-Function preComponents
-  ; If the service already exists, don't show this page
-  ServicesHelper::IsInstalled "MozillaMaintenance"
-  Pop $R9
-  ${If} $R9 == 1
-    ; The service already exists so don't show this page.
-    Abort
-  ${EndIf}
-
-  ; On Windows < XP SP3 we do not install the maintenance service.
-  ${If} ${IsWinXP}
-  ${AndIf} ${AtMostServicePack} 2
-    Abort
-  ${EndIf}
-
-  ; Don't show the custom components page if the
-  ; user is not an admin
-  Call IsUserAdmin
-  Pop $R9
-  ${If} $R9 != "true"
-    Abort
-  ${EndIf}
-
-  ; Only show the maintenance service page if we have write access to HKLM
-  ClearErrors
-  WriteRegStr HKLM "Software\Mozilla" \
-              "${BrandShortName}InstallerTest" "Write Test"
-  ${If} ${Errors}
-    ClearErrors
-    Abort
-  ${Else}
-    DeleteRegValue HKLM "Software\Mozilla" "${BrandShortName}InstallerTest"
-  ${EndIf}
-
-  StrCpy $PageName "Components"
-  ${CheckCustomCommon}
-  !insertmacro MUI_HEADER_TEXT "$(COMPONENTS_PAGE_TITLE)" "$(COMPONENTS_PAGE_SUBTITLE)"
-  !insertmacro MUI_INSTALLOPTIONS_DISPLAY "components.ini"
-FunctionEnd
-
-Function leaveComponents
-  ${MUI_INSTALLOPTIONS_READ} $0 "components.ini" "Settings" "State"
-  ${If} $0 != 0
-    Abort
-  ${EndIf}
-  ${MUI_INSTALLOPTIONS_READ} $InstallMaintenanceService "components.ini" "Field 2" "State"
-  ${If} $InstallType == ${INSTALLTYPE_CUSTOM}
-    Call CheckExistingInstall
-  ${EndIf}
-FunctionEnd
-!endif
-
 Function preSummary
   StrCpy $PageName "Summary"
   ; Setup the summary.ini file for the Custom Summary Page
@@ -1180,7 +1080,6 @@ Function .onInit
 
   !insertmacro InitInstallOptionsFile "options.ini"
   !insertmacro InitInstallOptionsFile "shortcuts.ini"
-  !insertmacro InitInstallOptionsFile "components.ini"
   !insertmacro InitInstallOptionsFile "summary.ini"
 
   WriteINIStr "$PLUGINSDIR\options.ini" "Settings" NumFields "5"
@@ -1255,36 +1154,6 @@ Function .onInit
   WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" Bottom "50"
   WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 3" State  "1"
 
-  ; Don't offer to install the quick launch shortcut on Windows 7
-  ${Unless} ${AtLeastWin7}
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Type   "checkbox"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Text   "$(ICONS_QUICKLAUNCH)"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Left   "0"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Right  "-1"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Top    "60"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" Bottom "70"
-    WriteINIStr "$PLUGINSDIR\shortcuts.ini" "Field 4" State  "1"
-  ${EndUnless}
-
-  ; Setup the components.ini file for the Components Page
-  WriteINIStr "$PLUGINSDIR\components.ini" "Settings" NumFields "2"
-
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Type   "label"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Text   "$(OPTIONAL_COMPONENTS_DESC)"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Left   "0"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Right  "-1"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Top    "5"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 1" Bottom "25"
-
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Type   "checkbox"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Text   "$(MAINTENANCE_SERVICE_CHECKBOX_DESC)"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Left   "0"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Right  "-1"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Top    "27"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Bottom "37"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" State  "1"
-  WriteINIStr "$PLUGINSDIR\components.ini" "Field 2" Flags  "GROUP"
-
   ; There must always be a core directory.
   ${GetSize} "$EXEDIR\core\" "/S=0K" $R5 $R7 $R8
   SectionSetSize ${APP_IDX} $R5
diff --git a/application/basilisk/installer/windows/nsis/maintenanceservice_installer.nsi b/application/basilisk/installer/windows/nsis/maintenanceservice_installer.nsi
deleted file mode 100644
index 1f73bac6a..000000000
--- a/application/basilisk/installer/windows/nsis/maintenanceservice_installer.nsi
+++ /dev/null
@@ -1,332 +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/.
-
-; Set verbosity to 3 (e.g. no script) to lessen the noise in the build logs
-!verbose 3
-
-; 7-Zip provides better compression than the lzma from NSIS so we add the files
-; uncompressed and use 7-Zip to create a SFX archive of it
-SetDatablockOptimize on
-SetCompress off
-CRCCheck on
-
-RequestExecutionLevel admin
-
-; The commands inside this ifdef require NSIS 3.0a2 or greater so the ifdef can
-; be removed after we require NSIS 3.0a2 or greater.
-!ifdef NSIS_PACKEDVERSION
-  Unicode true
-  ManifestSupportedOS all
-  ManifestDPIAware true
-!endif
-
-!addplugindir ./
-
-; Variables
-Var TempMaintServiceName
-Var BrandFullNameDA
-Var BrandFullName
-
-; Other included files may depend upon these includes!
-; The following includes are provided by NSIS.
-!include FileFunc.nsh
-!include LogicLib.nsh
-!include MUI.nsh
-!include WinMessages.nsh
-!include WinVer.nsh
-!include WordFunc.nsh
-
-!insertmacro GetOptions
-!insertmacro GetParameters
-!insertmacro GetSize
-
-; The test slaves use this fallback key to run tests.
-; And anyone that wants to run tests themselves should already have 
-; this installed.
-!define FallbackKey \
-  "SOFTWARE\Mozilla\MaintenanceService\3932ecacee736d366d6436db0f55bce4"
-
-!define CompanyName "Mozilla Corporation"
-!define BrandFullNameInternal ""
-
-; The following includes are custom.
-!include defines.nsi
-; We keep defines.nsi defined so that we get other things like 
-; the version number, but we redefine BrandFullName
-!define MaintFullName "Mozilla Maintenance Service"
-!undef BrandFullName
-!define BrandFullName "${MaintFullName}"
-
-!include common.nsh
-!include locales.nsi
-
-VIAddVersionKey "FileDescription" "${MaintFullName} Installer"
-VIAddVersionKey "OriginalFilename" "maintenanceservice_installer.exe"
-
-Name "${MaintFullName}"
-OutFile "maintenanceservice_installer.exe"
-
-; Get installation folder from registry if available
-InstallDirRegKey HKLM "Software\Mozilla\MaintenanceService" ""
-
-SetOverwrite on
-
-; serviceinstall.cpp also uses this key, in case the path is changed, update
-; there too.
-!define MaintUninstallKey \
- "Software\Microsoft\Windows\CurrentVersion\Uninstall\MozillaMaintenanceService"
-
-; Always install into the 32-bit location even if we have a 64-bit build.
-; This is because we use only 1 service for all Basilisk channels.
-; Allow either x86 and x64 builds to exist at this location, depending on
-; what is the latest build.
-InstallDir "$PROGRAMFILES32\${MaintFullName}\"
-ShowUnInstDetails nevershow
-
-################################################################################
-# Modern User Interface - MUI
-
-!define MUI_ICON setup.ico
-!define MUI_UNICON setup.ico
-!define MUI_WELCOMEPAGE_TITLE_3LINES
-!define MUI_UNWELCOMEFINISHPAGE_BITMAP wizWatermark.bmp
-
-;Interface Settings
-!define MUI_ABORTWARNING
-
-; Uninstaller Pages
-!insertmacro MUI_UNPAGE_CONFIRM
-!insertmacro MUI_UNPAGE_INSTFILES
-
-################################################################################
-# Language
-
-!insertmacro MOZ_MUI_LANGUAGE 'baseLocale'
-!verbose push
-!verbose 3
-!include "overrideLocale.nsh"
-!include "customLocale.nsh"
-!verbose pop
-
-; Set this after the locale files to override it if it is in the locale
-; using " " for BrandingText will hide the "Nullsoft Install System..." branding
-BrandingText " "
-
-Function .onInit
-  ; Remove the current exe directory from the search order.
-  ; This only effects LoadLibrary calls and not implicitly loaded DLLs.
-  System::Call 'kernel32::SetDllDirectoryW(w "")'
-
-  SetSilent silent
-
-  ${Unless} ${AtLeastWin7}
-    Abort
-  ${EndUnless}
-FunctionEnd
-
-Function un.onInit
-  ; Remove the current exe directory from the search order.
-  ; This only effects LoadLibrary calls and not implicitly loaded DLLs.
-  System::Call 'kernel32::SetDllDirectoryW(w "")'
-
-; The commands inside this ifndef are needed prior to NSIS 3.0a2 and can be
-; removed after we require NSIS 3.0a2 or greater.
-!ifndef NSIS_PACKEDVERSION
-  ${If} ${AtLeastWinVista}
-    System::Call 'user32::SetProcessDPIAware()'
-  ${EndIf}
-!endif
-
-  StrCpy $BrandFullNameDA "${MaintFullName}"
-  StrCpy $BrandFullName "${MaintFullName}"
-FunctionEnd
-
-Section "MaintenanceService"
-  AllowSkipFiles off
-
-  CreateDirectory $INSTDIR
-  SetOutPath $INSTDIR
-
-  ; If the service already exists, then it will be stopped when upgrading it
-  ; via the maintenanceservice_tmp.exe command executed below.
-  ; The maintenanceservice_tmp.exe command will rename the file to
-  ; maintenanceservice.exe if maintenanceservice_tmp.exe is newer.
-  ; If the service does not exist yet, we install it and drop the file on
-  ; disk as maintenanceservice.exe directly.
-  StrCpy $TempMaintServiceName "maintenanceservice.exe"
-  IfFileExists "$INSTDIR\maintenanceservice.exe" 0 skipAlreadyExists
-    StrCpy $TempMaintServiceName "maintenanceservice_tmp.exe"
-  skipAlreadyExists:
-
-  ; We always write out a copy and then decide whether to install it or 
-  ; not via calling its 'install' cmdline which works by version comparison.
-  CopyFiles "$EXEDIR\maintenanceservice.exe" "$INSTDIR\$TempMaintServiceName"
-
-  ; The updater.ini file is only used when performing an install or upgrade,
-  ; and only if that install or upgrade is successful.  If an old updater.ini
-  ; happened to be copied into the maintenance service installation directory
-  ; but the service was not newer, the updater.ini file would be unused.
-  ; It is used to fill the description of the service on success.
-  CopyFiles "$EXEDIR\updater.ini" "$INSTDIR\updater.ini"
-
-  ; Install the application maintenance service.
-  ; If a service already exists, the command line parameter will stop the
-  ; service and only install itself if it is newer than the already installed
-  ; service.  If successful it will remove the old maintenanceservice.exe
-  ; and replace it with maintenanceservice_tmp.exe.
-  ClearErrors
-  ${GetParameters} $0
-  ${GetOptions} "$0" "/Upgrade" $0
-  ${If} ${Errors}
-    ExecWait '"$INSTDIR\$TempMaintServiceName" install'
-  ${Else}
-    ; The upgrade cmdline is the same as install except
-    ; It will fail if the service isn't already installed.
-    ExecWait '"$INSTDIR\$TempMaintServiceName" upgrade'
-  ${EndIf}
-
-  WriteUninstaller "$INSTDIR\Uninstall.exe"
-  WriteRegStr HKLM "${MaintUninstallKey}" "DisplayName" "${MaintFullName}"
-  WriteRegStr HKLM "${MaintUninstallKey}" "UninstallString" \
-                   '"$INSTDIR\uninstall.exe"'
-  WriteRegStr HKLM "${MaintUninstallKey}" "DisplayIcon" \
-                   "$INSTDIR\Uninstall.exe,0"
-  WriteRegStr HKLM "${MaintUninstallKey}" "DisplayVersion" "${AppVersion}"
-  WriteRegStr HKLM "${MaintUninstallKey}" "Publisher" "Mozilla"
-  WriteRegStr HKLM "${MaintUninstallKey}" "Comments" "${BrandFullName}"
-  WriteRegDWORD HKLM "${MaintUninstallKey}" "NoModify" 1
-  ${GetSize} "$INSTDIR" "/S=0K" $R2 $R3 $R4
-  WriteRegDWORD HKLM "${MaintUninstallKey}" "EstimatedSize" $R2
-
-  ; Write out that a maintenance service was attempted.
-  ; We do this because on upgrades we will check this value and we only
-  ; want to install once on the first upgrade to maintenance service.
-  ; Also write out that we are currently installed, preferences will check
-  ; this value to determine if we should show the service update pref.
-  ; Since the Maintenance service can be installed either x86 or x64,
-  ; always use the 64-bit registry for checking if an attempt was made.
-  ${If} ${RunningX64}
-    SetRegView 64
-  ${EndIf}
-  WriteRegDWORD HKLM "Software\Mozilla\MaintenanceService" "Attempted" 1
-  WriteRegDWORD HKLM "Software\Mozilla\MaintenanceService" "Installed" 1
-  DeleteRegValue HKLM "Software\Mozilla\MaintenanceService" "FFPrefetchDisabled"
-
-  ; Included here for debug purposes only.  
-  ; These keys are used to bypass the installation dir is a valid installation
-  ; check from the service so that tests can be run.
-  ; WriteRegStr HKLM "${FallbackKey}\0" "name" "Mozilla Corporation"
-  ; WriteRegStr HKLM "${FallbackKey}\0" "issuer" "DigiCert SHA2 Assured ID Code Signing CA"
-  ${If} ${RunningX64}
-    SetRegView lastused
-  ${EndIf}
-SectionEnd
-
-; By renaming before deleting we improve things slightly in case
-; there is a file in use error. In this case a new install can happen.
-Function un.RenameDelete
-  Pop $9
-  ; If the .moz-delete file already exists previously, delete it
-  ; If it doesn't exist, the call is ignored.
-  ; We don't need to pass /REBOOTOK here since it was already marked that way
-  ; if it exists.
-  Delete "$9.moz-delete"
-  Rename "$9" "$9.moz-delete"
-  ${If} ${Errors}
-    Delete /REBOOTOK "$9"
-  ${Else} 
-    Delete /REBOOTOK "$9.moz-delete"
-  ${EndIf}
-  ClearErrors
-FunctionEnd
-
-Section "Uninstall"
-  ; Delete the service so that no updates will be attempted
-  ExecWait '"$INSTDIR\maintenanceservice.exe" uninstall'
-
-  Push "$INSTDIR\updater.ini"
-  Call un.RenameDelete
-  Push "$INSTDIR\maintenanceservice.exe"
-  Call un.RenameDelete
-  Push "$INSTDIR\maintenanceservice_tmp.exe"
-  Call un.RenameDelete
-  Push "$INSTDIR\maintenanceservice.old"
-  Call un.RenameDelete
-  Push "$INSTDIR\Uninstall.exe"
-  Call un.RenameDelete
-  Push "$INSTDIR\update\updater.ini"
-  Call un.RenameDelete
-  Push "$INSTDIR\update\updater.exe"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-1.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-2.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-3.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-4.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-5.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-6.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-7.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-8.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-9.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-10.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-install.log"
-  Call un.RenameDelete
-  Push "$INSTDIR\logs\maintenanceservice-uninstall.log"
-  Call un.RenameDelete
-  SetShellVarContext all
-  Push "$APPDATA\Mozilla\logs\maintenanceservice.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-1.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-2.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-3.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-4.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-5.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-6.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-7.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-8.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-9.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-10.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-install.log"
-  Call un.RenameDelete
-  Push "$APPDATA\Mozilla\logs\maintenanceservice-uninstall.log"
-  Call un.RenameDelete
-  RMDir /REBOOTOK "$APPDATA\Mozilla\logs"
-  RMDir /REBOOTOK "$APPDATA\Mozilla"
-  RMDir /REBOOTOK "$INSTDIR\logs"
-  RMDir /REBOOTOK "$INSTDIR\update"
-  RMDir /REBOOTOK "$INSTDIR"
-
-  DeleteRegKey HKLM "${MaintUninstallKey}"
-
-  ${If} ${RunningX64}
-    SetRegView 64
-  ${EndIf}
-  DeleteRegValue HKLM "Software\Mozilla\MaintenanceService" "Installed"
-  DeleteRegValue HKLM "Software\Mozilla\MaintenanceService" "FFPrefetchDisabled"
-  DeleteRegKey HKLM "${FallbackKey}\"
-  ${If} ${RunningX64}
-    SetRegView lastused
-  ${EndIf}
-SectionEnd
diff --git a/application/basilisk/installer/windows/nsis/shared.nsh b/application/basilisk/installer/windows/nsis/shared.nsh
index fb2239d24..f5bbef389 100644
--- a/application/basilisk/installer/windows/nsis/shared.nsh
+++ b/application/basilisk/installer/windows/nsis/shared.nsh
@@ -124,51 +124,6 @@
   ${FixDistributionsINI}
 
   RmDir /r /REBOOTOK "$INSTDIR\${TO_BE_DELETED}"
-
-!ifdef MOZ_MAINTENANCE_SERVICE
-  Call IsUserAdmin
-  Pop $R0
-  ${If} $R0 == "true"
-  ; Only proceed if we have HKLM write access
-  ${AndIf} $TmpVal == "HKLM"
-  ; On Windows 2000 we do not install the maintenance service.
-  ${AndIf} ${AtLeastWinXP}
-    ; We check to see if the maintenance service install was already attempted.
-    ; Since the Maintenance service can be installed either x86 or x64,
-    ; always use the 64-bit registry for checking if an attempt was made.
-    ${If} ${RunningX64}
-      SetRegView 64
-    ${EndIf}
-    ReadRegDWORD $5 HKLM "Software\Mozilla\MaintenanceService" "Attempted"
-    ClearErrors
-    ${If} ${RunningX64}
-      SetRegView lastused
-    ${EndIf}
-
-    ; Add the registry keys for allowed certificates.
-    ${AddMaintCertKeys}
-
-    ; If the maintenance service is already installed, do nothing.
-    ; The maintenance service will launch:
-    ; maintenanceservice_installer.exe /Upgrade to upgrade the maintenance
-    ; service if necessary.   If the update was done from updater.exe without
-    ; the service (i.e. service is failing), updater.exe will do the update of
-    ; the service.  The reasons we do not do it here is because we don't want
-    ; to have to prompt for limited user accounts when the service isn't used
-    ; and we currently call the PostUpdate twice, once for the user and once
-    ; for the SYSTEM account.  Also, this would stop the maintenance service
-    ; and we need a return result back to the service when run that way.
-    ${If} $5 == ""
-      ; An install of maintenance service was never attempted.
-      ; We know we are an Admin and that we have write access into HKLM
-      ; based on the above checks, so attempt to just run the EXE.
-      ; In the worst case, in case there is some edge case with the
-      ; IsAdmin check and the permissions check, the maintenance service
-      ; will just fail to be attempted to be installed.
-      nsExec::Exec "$\"$INSTDIR\maintenanceservice_installer.exe$\""
-    ${EndIf}
-  ${EndIf}
-!endif
 !macroend
 !define PostUpdate "!insertmacro PostUpdate"
 
@@ -720,54 +675,6 @@
 !macroend
 !define UpdateProtocolHandlers "!insertmacro UpdateProtocolHandlers"
 
-!ifdef MOZ_MAINTENANCE_SERVICE
-; Adds maintenance service certificate keys for the install dir.
-; For the cert to work, it must also be signed by a trusted cert for the user.
-!macro AddMaintCertKeys
-  Push $R0
-  ; Allow main Mozilla cert information for updates
-  ; This call will push the needed key on the stack
-  ServicesHelper::PathToUniqueRegistryPath "$INSTDIR"
-  Pop $R0
-  ${If} $R0 != ""
-    ; More than one certificate can be specified in a different subfolder
-    ; for example: $R0\1, but each individual binary can be signed
-    ; with at most one certificate.  A fallback certificate can only be used
-    ; if the binary is replaced with a different certificate.
-    ; We always use the 64bit registry for certs.
-    ${If} ${RunningX64}
-      SetRegView 64
-    ${EndIf}
-
-    ; PrefetchProcessName was originally used to experiment with deleting
-    ; Windows prefetch as a speed optimization.  It is no longer used though.
-    DeleteRegValue HKLM "$R0" "prefetchProcessName"
-
-    ; Setting the Attempted value will ensure that a new Maintenance Service
-    ; install will never be attempted again after this from updates.  The value
-    ; is used only to see if updates should attempt new service installs.
-    WriteRegDWORD HKLM "Software\Mozilla\MaintenanceService" "Attempted" 1
-
-    ; These values associate the allowed certificates for the current
-    ; installation.
-    WriteRegStr HKLM "$R0\0" "name" "${CERTIFICATE_NAME}"
-    WriteRegStr HKLM "$R0\0" "issuer" "${CERTIFICATE_ISSUER}"
-    ; These values associate the allowed certificates for the previous
-    ;  installation, so that we can update from it cleanly using the
-    ;  old updater.exe (which will still have this signature).
-    WriteRegStr HKLM "$R0\1" "name" "${CERTIFICATE_NAME_PREVIOUS}"
-    WriteRegStr HKLM "$R0\1" "issuer" "${CERTIFICATE_ISSUER_PREVIOUS}"
-    ${If} ${RunningX64}
-      SetRegView lastused
-    ${EndIf}
-    ClearErrors
-  ${EndIf}
-  ; Restore the previously used value back
-  Pop $R0
-!macroend
-!define AddMaintCertKeys "!insertmacro AddMaintCertKeys"
-!endif
-
 ; Removes various registry entries for reasons noted below (does not use SHCTX).
 !macro RemoveDeprecatedKeys
   StrCpy $0 "SOFTWARE\Classes"
diff --git a/application/basilisk/installer/windows/nsis/uninstaller.nsi b/application/basilisk/installer/windows/nsis/uninstaller.nsi
index 87f4d838a..c556b0a90 100644
--- a/application/basilisk/installer/windows/nsis/uninstaller.nsi
+++ b/application/basilisk/installer/windows/nsis/uninstaller.nsi
@@ -450,24 +450,6 @@ Section "Uninstall"
   ; uninstalls of Basilisk-release with reinstalls of Basilisk-release, for example.
   WriteRegStr HKCU "Software\Mozilla\Basilisk" "Uninstalled-${UpdateChannel}" "True"
 
-!ifdef MOZ_MAINTENANCE_SERVICE
-  ; Get the path the allowed cert is at and remove it
-  ; Keep this block of code last since it modfies the reg view
-  ServicesHelper::PathToUniqueRegistryPath "$INSTDIR"
-  Pop $MaintCertKey
-  ${If} $MaintCertKey != ""
-    ; Always use the 64bit registry for certs on 64bit systems.
-    ${If} ${RunningX64}
-      SetRegView 64
-    ${EndIf}
-    DeleteRegKey HKLM "$MaintCertKey"
-    ${If} ${RunningX64}
-      SetRegView lastused
-    ${EndIf}
-  ${EndIf}
-  Call un.UninstallServiceIfNotUsed
-!endif
-
   ${un.IsFirewallSvcRunning}
   Pop $0
   ${If} "$0" == "true"
diff --git a/application/basilisk/locales/en-US/chrome/browser/aboutRobots.dtd b/application/basilisk/locales/en-US/chrome/browser/aboutRobots.dtd
deleted file mode 100644
index 23447add1..000000000
--- a/application/basilisk/locales/en-US/chrome/browser/aboutRobots.dtd
+++ /dev/null
@@ -1,29 +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/. -->
-
-<!-- These strings are used in the about:robots page, which ties in with the
-     robots theme used in the Firefox 3 Beta 2/3 first run pages.
-     They're just meant to be fun and whimsical, with references to some geeky
-     but well-known robots in movies and books. Be creative with translations! -->
-
-<!-- Nonsense line from the movie "The Day The Earth Stood Still". No translation needed. -->
-<!ENTITY robots.pagetitle  "Gort! Klaatu barada nikto!">
-<!-- Movie: Logan's Run... Box (cybog): "Welcome Humans! I am ready for you." -->
-<!ENTITY robots.errorTitleText "Welcome Humans!">
-<!-- Movie: The Day The Earth Stood Still. Spoken by Klaatu. -->
-<!ENTITY robots.errorShortDescText "We have come to visit you in peace and with goodwill!">
-<!-- Various books by Isaac Asimov. http://en.wikipedia.org/wiki/Three_Laws_of_Robotics -->
-<!ENTITY robots.errorLongDesc1 "Robots may not injure a human being or, through inaction, allow a human being to come to harm.">
-<!-- Movie: Blade Runner. Batty: "I've seen things you people wouldn’t believe..." -->
-<!ENTITY robots.errorLongDesc2 "Robots have seen things you people wouldn’t believe.">
-<!-- Book: Hitchhiker’s Guide To The Galaxy. What the Sirius Cybernetics Corporation calls robots. -->
-<!ENTITY robots.errorLongDesc3 "Robots are Your Plastic Pal Who’s Fun To Be With.">
-<!-- TV: Futurama. Bender's first line is "Bite my shiny metal ass." -->
-<!ENTITY robots.errorLongDesc4 "Robots have shiny metal posteriors which should not be bitten.">
-<!-- TV: Battlestar Galactica (2004 series). From the opening text. -->
-<!ENTITY robots.errorTrailerDescText "And they have a plan.">
-<!-- TV: Battlestar Galactica (2004 series). Common expletive referring to Cylons. -->
-<!ENTITY robots.imgtitle "Frakkin' Toasters">
-<!-- Book: Hitchhiker's Guide To The Galaxy. Arthur presses a button and it warns him. -->
-<!ENTITY robots.dontpress "Please do not press this button again.">
diff --git a/application/basilisk/locales/en-US/chrome/browser/browser.properties b/application/basilisk/locales/en-US/chrome/browser/browser.properties
index f1c39839b..abec30bf1 100644
--- a/application/basilisk/locales/en-US/chrome/browser/browser.properties
+++ b/application/basilisk/locales/en-US/chrome/browser/browser.properties
@@ -638,37 +638,6 @@ e10s.accessibilityNotice.acceptButton.accesskey = O
 e10s.accessibilityNotice.enableAndRestart.label = Enable (Requires Restart)
 e10s.accessibilityNotice.enableAndRestart.accesskey = E
 
-# LOCALIZATION NOTE (userContextPersonal.label,
-#                    userContextWork.label,
-#                    userContextShopping.label,
-#                    userContextBanking.label,
-#                    userContextNone.label):
-# These strings specify the four predefined contexts included in support of the
-# Contextual Identity / Containers project. Each context is meant to represent
-# the context that the user is in when interacting with the site. Different
-# contexts will store cookies and other information from those sites in
-# different, isolated locations. You can enable the feature by typing
-# about:config in the URL bar and changing privacy.userContext.enabled to true.
-# Once enabled, you can open a new tab in a specific context by clicking
-# File > New Container Tab > (1 of 4 contexts). Once opened, you will see these
-# strings on the right-hand side of the URL bar.
-userContextPersonal.label = Personal
-userContextWork.label = Work
-userContextBanking.label = Banking
-userContextShopping.label = Shopping
-userContextNone.label = No Container
-
-userContextPersonal.accesskey = P
-userContextWork.accesskey = W
-userContextBanking.accesskey = B
-userContextShopping.accesskey = S
-userContextNone.accesskey = N
-
-userContext.aboutPage.label = Manage containers
-userContext.aboutPage.accesskey = O
-
-userContextOpenLink.label = Open Link in New %S Tab
-
 muteTab.label = Mute Tab
 muteTab.accesskey = M
 unmuteTab.label = Unmute Tab
diff --git a/application/basilisk/locales/en-US/chrome/browser/preferences/containers.dtd b/application/basilisk/locales/en-US/chrome/browser/preferences/containers.dtd
deleted file mode 100644
index 58eca1ace..000000000
--- a/application/basilisk/locales/en-US/chrome/browser/preferences/containers.dtd
+++ /dev/null
@@ -1,24 +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/. -->
-
-<!ENTITY label.label          "Name">
-<!ENTITY addButton.label      "Add New Container">
-<!ENTITY addButton.accesskey  "A">
-<!-- &#171; is &laquo; however it's not defined in XML -->
-<!ENTITY backLink.label       "&#171; Go Back to Privacy">
-
-<!ENTITY window.title         "Add New Container">
-<!ENTITY window.width         "45em">
-
-<!ENTITY name.label           "Name:">
-<!ENTITY name.accesskey       "N">
-<!ENTITY icon.label           "Icon:">
-<!ENTITY icon.accesskey       "I">
-<!ENTITY color.label          "Color:">
-<!ENTITY color.accesskey      "o">
-<!ENTITY windowClose.key      "w">
-
-<!ENTITY button.ok.label      "Done">
-<!ENTITY button.ok.accesskey  "D">
-
diff --git a/application/basilisk/locales/en-US/chrome/browser/preferences/containers.properties b/application/basilisk/locales/en-US/chrome/browser/preferences/containers.properties
deleted file mode 100644
index 9866a0659..000000000
--- a/application/basilisk/locales/en-US/chrome/browser/preferences/containers.properties
+++ /dev/null
@@ -1,31 +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/.
-
-containers.removeButton = Remove
-containers.preferencesButton = Preferences
-containers.colorHeading = Color:
-containers.labelMinWidth = 4rem
-containers.nameLabel = Name:
-containers.namePlaceholder = Enter a container name
-containers.submitButton = Done
-containers.iconHeading = Icon:
-containers.updateContainerTitle = %S Container Preferences
-
-containers.blue.label = Blue
-containers.turquoise.label = Turquoise
-containers.green.label = Green
-containers.yellow.label = Yellow
-containers.orange.label = Orange
-containers.red.label = Red
-containers.pink.label = Pink
-containers.purple.label = Purple
-
-containers.fingerprint.label = Fingerprint
-containers.briefcase.label = Briefcase
-# LOCALIZATION NOTE (containers.dollar.label)
-# String represents a money sign but currently uses a dollar sign so don't change to local currency
-# See Bug 1291672
-containers.dollar.label = Dollar sign
-containers.cart.label = Shopping cart
-containers.circle.label = Dot
diff --git a/application/basilisk/locales/en-US/chrome/browser/preferences/cookies.dtd b/application/basilisk/locales/en-US/chrome/browser/preferences/cookies.dtd
index 5e7df9609..c83331328 100644
--- a/application/basilisk/locales/en-US/chrome/browser/preferences/cookies.dtd
+++ b/application/basilisk/locales/en-US/chrome/browser/preferences/cookies.dtd
@@ -14,7 +14,6 @@
 <!ENTITY     props.path.label               "Path:">
 <!ENTITY     props.secure.label             "Send For:">
 <!ENTITY     props.expires.label            "Expires:">
-<!ENTITY     props.container.label          "Container:">
 
 <!ENTITY     window.title                   "Cookies">
 <!ENTITY     windowClose.key                "w">
diff --git a/application/basilisk/locales/en-US/chrome/browser/preferences/preferences.dtd b/application/basilisk/locales/en-US/chrome/browser/preferences/preferences.dtd
index 7702c8c51..353e627d7 100644
--- a/application/basilisk/locales/en-US/chrome/browser/preferences/preferences.dtd
+++ b/application/basilisk/locales/en-US/chrome/browser/preferences/preferences.dtd
@@ -18,7 +18,6 @@
 <!ENTITY  paneContent.title       "Content">
 <!ENTITY  paneApplications.title  "Applications">
 <!ENTITY  panePrivacy.title       "Privacy">
-<!ENTITY  paneContainers.title    "Container Tabs">
 <!ENTITY  paneSecurity.title      "Security">
 <!ENTITY  paneAdvanced.title      "Advanced">
 
diff --git a/application/basilisk/locales/en-US/chrome/browser/preferences/preferences.properties b/application/basilisk/locales/en-US/chrome/browser/preferences/preferences.properties
index 84fac427d..c0b7e1be0 100644
--- a/application/basilisk/locales/en-US/chrome/browser/preferences/preferences.properties
+++ b/application/basilisk/locales/en-US/chrome/browser/preferences/preferences.properties
@@ -191,17 +191,3 @@ revertNoRestartButton=Revert
 
 restartNow=Restart Now
 restartLater=Restart Later
-
-disableContainersAlertTitle=Close All Container Tabs?
-
-# LOCALIZATION NOTE (disableContainersMsg): Semi-colon list of plural forms.
-# See: http://developer.mozilla.org/en/docs/Localization_and_Plurals
-# #S is the number of container tabs
-disableContainersMsg=If you disable Container Tabs now, #S container tab will be closed. Are you sure you want to disable Container Tabs?;If you disable Container Tabs now, #S container tabs will be closed. Are you sure you want to disable Container Tabs?
-
-# LOCALIZATION NOTE (disableContainersOkButton): Semi-colon list of plural forms.
-# See: http://developer.mozilla.org/en/docs/Localization_and_Plurals
-# #S is the number of container tabs
-disableContainersOkButton=Close #S Container Tab;Close #S Container Tabs
-
-disableContainersButton2=Keep enabled
diff --git a/application/basilisk/locales/en-US/chrome/browser/preferences/privacy.dtd b/application/basilisk/locales/en-US/chrome/browser/preferences/privacy.dtd
index f743c4040..8820e92ab 100644
--- a/application/basilisk/locales/en-US/chrome/browser/preferences/privacy.dtd
+++ b/application/basilisk/locales/en-US/chrome/browser/preferences/privacy.dtd
@@ -110,10 +110,3 @@
 
 <!ENTITY  clearOnCloseSettings.label     "Settings…">
 <!ENTITY  clearOnCloseSettings.accesskey "t">
-
-<!ENTITY  browserContainersHeader.label         "Container Tabs">
-<!ENTITY  browserContainersLearnMore.label      "Learn more">
-<!ENTITY  browserContainersEnabled.label        "Enable Container Tabs">
-<!ENTITY  browserContainersEnabled.accesskey    "n">
-<!ENTITY  browserContainersSettings.label        "Settings…">
-<!ENTITY  browserContainersSettings.accesskey    "i">
diff --git a/application/basilisk/locales/en-US/installer/custom.properties b/application/basilisk/locales/en-US/installer/custom.properties
index 4abb1a550..0f86f5528 100644
--- a/application/basilisk/locales/en-US/installer/custom.properties
+++ b/application/basilisk/locales/en-US/installer/custom.properties
@@ -25,10 +25,6 @@ OPTIONS_PAGE_TITLE=Setup Type
 OPTIONS_PAGE_SUBTITLE=Choose setup options
 SHORTCUTS_PAGE_TITLE=Set Up Shortcuts
 SHORTCUTS_PAGE_SUBTITLE=Create Program Icons
-COMPONENTS_PAGE_TITLE=Set Up Optional Components
-COMPONENTS_PAGE_SUBTITLE=Optional Recommended Components
-OPTIONAL_COMPONENTS_DESC=The Maintenance Service will allow you to update $BrandShortName silently in the background.
-MAINTENANCE_SERVICE_CHECKBOX_DESC=Install &Maintenance Service
 SUMMARY_PAGE_TITLE=Summary
 SUMMARY_PAGE_SUBTITLE=Ready to start installing $BrandShortName
 SUMMARY_INSTALLED_TO=$BrandShortName will be installed to the following location:
diff --git a/application/basilisk/locales/jar.mn b/application/basilisk/locales/jar.mn
index 5c5a72a1f..1a9b7f315 100644
--- a/application/basilisk/locales/jar.mn
+++ b/application/basilisk/locales/jar.mn
@@ -11,7 +11,6 @@
     locale/browser/aboutDialog.dtd                 (%chrome/browser/aboutDialog.dtd)
     locale/browser/aboutPrivateBrowsing.dtd        (%chrome/browser/aboutPrivateBrowsing.dtd)
     locale/browser/aboutPrivateBrowsing.properties (%chrome/browser/aboutPrivateBrowsing.properties)
-    locale/browser/aboutRobots.dtd                 (%chrome/browser/aboutRobots.dtd)
     locale/browser/aboutHome.dtd                   (%chrome/browser/aboutHome.dtd)
     locale/browser/accounts.properties             (%chrome/browser/accounts.properties)
 #ifdef MOZ_SERVICES_HEALTHREPORT
@@ -79,10 +78,8 @@
     locale/browser/preferences/permissions.dtd        (%chrome/browser/preferences/permissions.dtd)
     locale/browser/preferences/preferences.dtd        (%chrome/browser/preferences/preferences.dtd)
     locale/browser/preferences/preferences.properties (%chrome/browser/preferences/preferences.properties)
-    locale/browser/preferences/containers.properties  (%chrome/browser/preferences/containers.properties)
 *   locale/browser/preferences/privacy.dtd            (%chrome/browser/preferences/privacy.dtd)
     locale/browser/preferences/security.dtd           (%chrome/browser/preferences/security.dtd)
-    locale/browser/preferences/containers.dtd         (%chrome/browser/preferences/containers.dtd)
     locale/browser/preferences/sync.dtd               (%chrome/browser/preferences/sync.dtd)
     locale/browser/preferences/tabs.dtd               (%chrome/browser/preferences/tabs.dtd)
     locale/browser/preferences/search.dtd             (%chrome/browser/preferences/search.dtd)
diff --git a/application/basilisk/modules/ContentClick.jsm b/application/basilisk/modules/ContentClick.jsm
index 40101d5d3..4cd665f8c 100644
--- a/application/basilisk/modules/ContentClick.jsm
+++ b/application/basilisk/modules/ContentClick.jsm
@@ -88,11 +88,6 @@ var ContentClick = {
       triggeringPrincipal: json.triggeringPrincipal,
     };
 
-    // The new tab/window must use the same userContextId.
-    if (json.originAttributes.userContextId) {
-      params.userContextId = json.originAttributes.userContextId;
-    }
-
     window.openLinkIn(json.href, where, params);
   }
 };
diff --git a/application/basilisk/modules/ProcessHangMonitor.jsm b/application/basilisk/modules/ProcessHangMonitor.jsm
index e048f5b40..b1f6f2a97 100644
--- a/application/basilisk/modules/ProcessHangMonitor.jsm
+++ b/application/basilisk/modules/ProcessHangMonitor.jsm
@@ -316,7 +316,7 @@ var ProcessHangMonitor = {
 
     nb.appendNotification(bundle.getString("processHang.label"),
                           "process-hang",
-                          "chrome://browser/content/aboutRobots-icon.png",
+                          "chrome://browser/skin/slowStartup-16.png",
                           nb.PRIORITY_WARNING_HIGH, buttons);
   },
 
diff --git a/application/basilisk/themes/shared/incontentprefs/containers.css b/application/basilisk/themes/shared/incontentprefs/containers.css
deleted file mode 100644
index 5446dccce..000000000
--- a/application/basilisk/themes/shared/incontentprefs/containers.css
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-%include ../../../components/contextualidentity/content/usercontext.css
-
-.container-header-links {
-  margin-block-end: 15px;
-}
-
-[data-identity-icon] {
-  margin: 0;
-  margin-inline-end: 16px;
-}
-
-#containersView {
-  border: 0 none;
-  background: transparent;
-}
-
-#containersView richlistitem {
-  margin: 0px;
-  margin-inline-end: 8px;
-  padding: 0;
-  padding-block-end: 8px;
-  border-block-end: 1px solid var(--in-content-header-border-color);
-}
-
-#containersView richlistitem:last-of-type {
-  border-block-end: 0 none;
-  margin-block-end: 8px;
-}
diff --git a/application/basilisk/themes/shared/incontentprefs/preferences.inc.css b/application/basilisk/themes/shared/incontentprefs/preferences.inc.css
index 0e62660de..20ea98327 100644
--- a/application/basilisk/themes/shared/incontentprefs/preferences.inc.css
+++ b/application/basilisk/themes/shared/incontentprefs/preferences.inc.css
@@ -237,8 +237,7 @@ treecol {
 /* Privacy pane */
 
 #trackingProtectionPBMLearnMore,
-#trackingProtectionLearnMore,
-#browserContainersLearnMore {
+#trackingProtectionLearnMore {
   margin-inline-start: 1.5em !important;
   margin-top: 0;
   font-weight: normal;
diff --git a/application/basilisk/themes/shared/jar.inc.mn b/application/basilisk/themes/shared/jar.inc.mn
index 361edd311..5750d2dc5 100644
--- a/application/basilisk/themes/shared/jar.inc.mn
+++ b/application/basilisk/themes/shared/jar.inc.mn
@@ -73,8 +73,6 @@
   skin/classic/browser/preferences/in-content/favicon.ico      (../shared/incontentprefs/favicon.ico)
   skin/classic/browser/preferences/in-content/icons.svg        (../shared/incontentprefs/icons.svg)
   skin/classic/browser/preferences/in-content/search.css       (../shared/incontentprefs/search.css)
-* skin/classic/browser/preferences/in-content/containers.css   (../shared/incontentprefs/containers.css)
-* skin/classic/browser/preferences/containers.css              (../shared/preferences/containers.css)
   skin/classic/browser/fxa/default-avatar.svg                  (../shared/fxa/default-avatar.svg)
   skin/classic/browser/fxa/logo.png                            (../shared/fxa/logo.png)
   skin/classic/browser/fxa/logo@2x.png                         (../shared/fxa/logo@2x.png)
diff --git a/application/basilisk/themes/shared/preferences/containers.css b/application/basilisk/themes/shared/preferences/containers.css
deleted file mode 100644
index 3fb965331..000000000
--- a/application/basilisk/themes/shared/preferences/containers.css
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-%include ../../../components/contextualidentity/content/usercontext.css
-
-:root {
-  --preference-selected-color: #0996f8;
-  --preference-unselected-color: #333;
-  --preference-active-color: #858585;
-}
-
-radiogroup {
-  display: flex;
-  margin-inline-start: 0.35rem;
-}
-
-radio {
-  flex: auto;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  -moz-user-select: none;
-  outline: 2px solid transparent;
-  outline-offset: 4px;
-  -moz-outline-radius: 100%;
-  min-block-size: 24px;
-  min-inline-size: 24px;
-  border-radius: 50%;
-  padding: 2px;
-  margin: 10px;
-}
-
-.icon-buttons > radio > [data-identity-icon] {
-  fill: #4d4d4d;
-}
-
-radio > [data-identity-icon] {
-  inline-size: 22px;
-  block-size: 22px;
-}
-
-radio[selected=true] {
-  outline-color: var(--preference-unselected-color);
-}
-
-radio[focused=true] {
-  outline-color: var(--preference-selected-color);
-}
-
-radio:hover:active {
-  outline-color: var(--preference-active-color);
-}