Merge branch 'master' of https://github.com/MoonchildProductions/UXP into js_array_values_1

44 files changed, 216 insertions, 315 deletions

diff --git a/browser/app/blocklist.xml b/browser/app/blocklist.xml
index 1c71bcd61..239fe43a4 100644
--- a/browser/app/blocklist.xml
+++ b/browser/app/blocklist.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='UTF-8'?>
-<blocklist lastupdate="1511452800000" xmlns="http://www.mozilla.org/2006/addons-blocklist">
+<blocklist lastupdate="1521130300000" xmlns="http://www.mozilla.org/2006/addons-blocklist">
   <emItems>
     <emItem blockID="i988" id="{b12785f5-d8d0-4530-a3ea-5c4263b85bef}">
       <prefs/>
@@ -2087,6 +2087,10 @@
       <prefs/>
       <versionRange minVersion="0" maxVersion="15.0.5" severity="1"/>
     </emItem>
+    <emItem blockID="2447476f-043b-4d0b-9d3c-8e859c97d950" id="{44e4b2cf-77ba-4f76-aca7-f3fcbc2dda2f}">
+      <prefs/>
+      <versionRange minVersion="0" maxVersion="*" severity="3"/>
+    </emItem>
   </emItems>
   <pluginItems>
     <pluginItem blockID="p416">
diff --git a/browser/app/macbuild/Contents/Info.plist.in b/browser/app/macbuild/Contents/Info.plist.in
index 6212e886d..d6902fffd 100644
--- a/browser/app/macbuild/Contents/Info.plist.in
+++ b/browser/app/macbuild/Contents/Info.plist.in
@@ -205,6 +205,11 @@
 	<true/>
 	<key>LSApplicationCategoryType</key>
 	<string>public.app-category.productivity</string>
+	<key>LSEnvironment</key>
+	<dict>
+		<key>MallocNanoZone</key>
+		<string>0</string>
+	</dict>
 	<key>LSFileQuarantineEnabled</key>
 	<true/>
 	<key>LSMinimumSystemVersion</key>
diff --git a/browser/app/profile/firefox.js b/browser/app/profile/firefox.js
index b46d944e8..d6de538d7 100644
--- a/browser/app/profile/firefox.js
+++ b/browser/app/profile/firefox.js
@@ -1061,7 +1061,6 @@ pref("services.sync.prefs.sync.browser.download.useDownloadDir", true);
 pref("services.sync.prefs.sync.browser.formfill.enable", true);
 pref("services.sync.prefs.sync.browser.link.open_newwindow", true);
 pref("services.sync.prefs.sync.browser.newtabpage.enabled", true);
-pref("services.sync.prefs.sync.browser.newtabpage.enhanced", true);
 pref("services.sync.prefs.sync.browser.newtabpage.pinned", true);
 pref("services.sync.prefs.sync.browser.offline-apps.notify", true);
 pref("services.sync.prefs.sync.browser.safebrowsing.phishing.enabled", true);
@@ -1156,7 +1155,7 @@ pref("browser.newtabpage.introShown", false);
 pref("browser.newtabpage.enabled", true);
 
 // Toggles the enhanced content of 'about:newtab'. Shows sponsored tiles.
-sticky_pref("browser.newtabpage.enhanced", true);
+sticky_pref("browser.newtabpage.enhanced", false);
 
 // enables Activity Stream inspired layout
 pref("browser.newtabpage.compact", false);
@@ -1330,20 +1329,21 @@ pref("identity.fxaccounts.migrateToDevEdition", false);
 pref("ui.key.menuAccessKeyFocuses", true);
 #endif
 
+#ifdef MOZ_EME
 // Encrypted media extensions.
-#ifdef XP_LINUX
-// On Linux EME is visible but disabled by default. This is so that the
-// "Play DRM content" checkbox in the Firefox UI is unchecked by default.
+// EME is visible but disabled by default. This is so that the
+// "Play DRM content" checkbox in the browser UI is unchecked by default.
 // DRM requires downloading and installing proprietary binaries, which
-// users on an open source operating systems didn't opt into. The first
-// time a site using EME is encountered, the user will be prompted to
-// enable DRM, whereupon the EME plugin binaries will be downloaded if
-// permission is granted.
+// users didn't necessarily opt-in to by installing the browser.
+// The first time a site using EME is encountered, the user will be
+// prompted to enable DRM, whereupon the EME plugin binaries will be
+// downloaded if permission is granted.
 pref("media.eme.enabled", false);
+pref("media.eme.apiVisible", true);
 #else
-pref("media.eme.enabled", true);
+// Disable redundant interfaces
+pref("media.eme.apiVisible", false);
 #endif
-pref("media.eme.apiVisible", true);
 
 // Decode using Gecko Media Plugins in <video>, if a system decoder is not
 // availble and the preferred GMP is available.
diff --git a/browser/base/content/aboutDialog.js b/browser/base/content/aboutDialog.js
index b024d2d52..f9571621f 100644
--- a/browser/base/content/aboutDialog.js
+++ b/browser/base/content/aboutDialog.js
@@ -40,16 +40,23 @@ function init(aEvent)
     // Pref is unset
   }
 
-  // Include the build ID and display warning if this is an "a#" (nightly or aurora) build
+  // Include the build ID 
   let versionField = document.getElementById("version");
   let version = Services.appinfo.version;
+  let buildID = Services.appinfo.appBuildID;
+  let year = buildID.slice(0, 4);
+  let month = buildID.slice(4, 6);
+  let day = buildID.slice(6, 8);
+  let hour = buildID.slice(8, 10);
+  let minute = buildID.slice(10, 12);
+  if (Services.prefs.getBoolPref("general.useragent.appVersionIsBuildID")) {
+    versionField.textContent = `${year}.${month}.${day}`;
+  } else {
+    versionField.textContent = `v` + version + ` (${year}-${month}-${day})`;
+  }
+  
+  // Display warning if this is an "a#" (nightly or aurora) build
   if (/a\d+$/.test(version)) {
-    let buildID = Services.appinfo.appBuildID;
-    let year = buildID.slice(0, 4);
-    let month = buildID.slice(4, 6);
-    let day = buildID.slice(6, 8);
-    versionField.textContent += ` (${year}-${month}-${day})`;
-
     document.getElementById("experimental").hidden = false;
     document.getElementById("communityDesc").hidden = true;
   }
diff --git a/browser/base/content/aboutDialog.xul b/browser/base/content/aboutDialog.xul
index ef2804f31..5780e5ec1 100644
--- a/browser/base/content/aboutDialog.xul
+++ b/browser/base/content/aboutDialog.xul
@@ -45,7 +45,7 @@
       <vbox id="leftBox" flex="1"/>
       <vbox id="rightBox" flex="1">
         <hbox align="baseline">
-#expand <label id="version">__MOZ_APP_VERSION_DISPLAY__</label>
+#expand <label id="version"></label>
 #ifndef NIGHTLY_BUILD
        <label id="releasenotes" class="text-link">&releaseNotes.link;</label>
 #endif
@@ -120,20 +120,20 @@
           <vbox id="experimental" hidden="true">
             <description class="text-blurb" id="warningDesc">
               &warningDesc.version;
-#ifdef MOZ_TELEMETRY_ON_BY_DEFAULT
-              &warningDesc.telemetryDesc;
-#endif
-            </description>
-            <description class="text-blurb" id="communityExperimentalDesc">
-              &community.exp.start;<label class="text-link" href="http://www.mozilla.org/">&community.exp.mozillaLink;</label>&community.exp.middle;<label class="text-link" useoriginprincipal="true" href="about:credits">&community.exp.creditsLink;</label>&community.exp.end;
             </description>
           </vbox>
+#ifdef MC_PRIVATE_BUILD
+<description class="text-blurb" id="communityDesc">
+              This is a private build of Basilisk. If you did not manually build this copy from source yourself, then please download an official version from the <label class="text-link" href="http://www.basilisk-browser.org/">Basilisk website</label>.
+          </description>
+#else
           <description class="text-blurb" id="communityDesc">
-            &community.start2;<label class="text-link" href="http://www.mozilla.org/">&community.mozillaLink;</label>&community.middle2;<label class="text-link" useoriginprincipal="true" href="about:credits">&community.creditsLink;</label>&community.end3;
+              Basilisk is community software released by <label class="text-link" href="http://www.palemoon.org/">the Pale Moon team</label> and Mozilla developers. Learn <label class="text-link" useoriginprincipal="true" href="about:credits">who contributed</label> to this software.
           </description>
           <description class="text-blurb" id="contributeDesc">
-              &helpus.start;<label class="text-link" href="https://sendto.mozilla.org/page/contribute/Give-Now?source=mozillaorg_default_footer&#38;ref=firefox_about&#38;utm_campaign=firefox_about&#38;tm_source=firefox&#38;tm_medium=referral&#38;utm_content=20140929_FireFoxAbout">&helpus.donateLink;</label>&helpus.middle;<label class="text-link" href="http://www.mozilla.org/contribute/">&helpus.getInvolvedLink;</label>&helpus.end;
+              Want to help? Please consider <label class="text-link" href="https://www.palemoon.org/donations.shtml">donating</label> or get involved with our <label class="text-link" href="https://github.com/MoonchildProductions/UXP">development</label> of the Unified XUL Platform.
           </description>
+#endif
         </vbox>
       </vbox>
     </hbox>
@@ -141,7 +141,7 @@
       <hbox pack="center">
         <label class="text-link bottom-link" useoriginprincipal="true" href="about:license">&bottomLinks.license;</label>
         <label class="text-link bottom-link" useoriginprincipal="true" href="about:rights">&bottomLinks.rights;</label>
-        <label class="text-link bottom-link" href="https://www.mozilla.org/privacy/">&bottomLinks.privacy;</label>
+        <label class="text-link bottom-link" href="https://www.palemoon.org/privacy.shtml">&bottomLinks.privacy;</label>
       </hbox>
       <description id="trademark">&trademarkInfo.part1;</description>
     </vbox>
diff --git a/browser/base/content/browser-media.js b/browser/base/content/browser-media.js
index a013dbd8a..bd5c5b227 100644
--- a/browser/base/content/browser-media.js
+++ b/browser/base/content/browser-media.js
@@ -5,12 +5,16 @@
 
 var gEMEHandler = {
   get uiEnabled() {
+#ifdef MOZ_EME
     let emeUIEnabled = Services.prefs.getBoolPref("browser.eme.ui.enabled");
     // Force-disable on WinXP:
     if (navigator.platform.toLowerCase().startsWith("win")) {
       emeUIEnabled = emeUIEnabled && parseFloat(Services.sysinfo.get("version")) >= 6;
     }
     return emeUIEnabled;
+#else
+    return false;
+#endif
   },
   ensureEMEEnabled: function(browser, keySystem) {
     Services.prefs.setBoolPref("media.eme.enabled", true);
@@ -41,11 +45,23 @@ var gEMEHandler = {
     }
     return true;
   },
-  getLearnMoreLink: function(msgId) {
-    let text = gNavigatorBundle.getString("emeNotifications." + msgId + ".learnMoreLabel");
+  getEMEDisabledFragment: function(msgId) {
+    let mainMessage = gNavigatorBundle.getString("emeNotifications.drmContentDisabled.message");
+    let [prefix, suffix] = mainMessage.split(/%(?:\$\d)?S/).map(s => document.createTextNode(s));
+    let text = gNavigatorBundle.getString("emeNotifications.drmContentDisabled.learnMoreLabel");
     let baseURL = Services.urlFormatter.formatURLPref("app.support.baseURL");
-    return "<label class='text-link' href='" + baseURL + "drm-content'>" +
-           text + "</label>";
+    let link = document.createElement("label");
+    link.className = "text-link";
+    link.setAttribute("href", baseURL + "drm-content");
+    link.textContent = text;
+
+    let fragment = document.createDocumentFragment();
+    [prefix, link, suffix].forEach(n => fragment.appendChild(n));
+    return fragment;
+  },
+  getMessageWithBrandName: function(notificationId) {
+    let msgId = "emeNotifications." + notificationId + ".message";
+    return gNavigatorBundle.getFormattedString(msgId, [this._brandShortName]);
   },
   receiveMessage: function({target: browser, data: data}) {
     let parsedData;
@@ -63,7 +79,8 @@ var gEMEHandler = {
 
     let notificationId;
     let buttonCallback;
-    let params = [];
+    // Notification message can be either a string or a DOM fragment.
+    let notificationMessage;
     switch (status) {
       case "available":
       case "cdm-created":
@@ -78,17 +95,17 @@ var gEMEHandler = {
       case "cdm-disabled":
         notificationId = "drmContentDisabled";
         buttonCallback = gEMEHandler.ensureEMEEnabled.bind(gEMEHandler, browser, keySystem)
-        params = [this.getLearnMoreLink(notificationId)];
+        notificationMessage = this.getEMEDisabledFragment();
         break;
 
       case "cdm-insufficient-version":
         notificationId = "drmContentCDMInsufficientVersion";
-        params = [this._brandShortName];
+        notificationMessage = this.getMessageWithBrandName(notificationId);
         break;
 
       case "cdm-not-installed":
         notificationId = "drmContentCDMInstalling";
-        params = [this._brandShortName];
+        notificationMessage = this.getMessageWithBrandName(notificationId);
         break;
 
       case "cdm-not-supported":
@@ -100,44 +117,29 @@ var gEMEHandler = {
         return;
     }
 
-    this.showNotificationBar(browser, notificationId, keySystem, params, buttonCallback);
-  },
-  showNotificationBar: function(browser, notificationId, keySystem, labelParams, callback) {
+    // Now actually create the notification
+
     let box = gBrowser.getNotificationBox(browser);
     if (box.getNotificationWithValue(notificationId)) {
       return;
     }
 
-    let msgPrefix = "emeNotifications." + notificationId + ".";
-    let msgId = msgPrefix + "message";
-
-    let message = labelParams.length ?
-                  gNavigatorBundle.getFormattedString(msgId, labelParams) :
-                  gNavigatorBundle.getString(msgId);
-
     let buttons = [];
-    if (callback) {
+    if (buttonCallback) {
+      let msgPrefix = "emeNotifications." + notificationId + ".";
       let btnLabelId = msgPrefix + "button.label";
       let btnAccessKeyId = msgPrefix + "button.accesskey";
       buttons.push({
         label: gNavigatorBundle.getString(btnLabelId),
         accessKey: gNavigatorBundle.getString(btnAccessKeyId),
-        callback: callback
+        callback: buttonCallback
       });
     }
 
     let iconURL = "chrome://browser/skin/drm-icon.svg#chains-black";
 
-    // Do a little dance to get rich content into the notification:
-    let fragment = document.createDocumentFragment();
-    let descriptionContainer = document.createElement("description");
-    descriptionContainer.innerHTML = message;
-    while (descriptionContainer.childNodes.length) {
-      fragment.appendChild(descriptionContainer.childNodes[0]);
-    }
-
-    box.appendNotification(fragment, notificationId, iconURL, box.PRIORITY_WARNING_MEDIUM,
-                           buttons);
+    box.appendNotification(notificationMessage, notificationId, iconURL, 
+                           box.PRIORITY_WARNING_MEDIUM, buttons);
   },
   showPopupNotificationForSuccess: function(browser, keySystem) {
     // We're playing EME content! Remove any "we can't play because..." messages.
diff --git a/browser/base/content/browser-menubar.inc b/browser/base/content/browser-menubar.inc
index 3fc098755..41734711c 100644
--- a/browser/base/content/browser-menubar.inc
+++ b/browser/base/content/browser-menubar.inc
@@ -34,12 +34,6 @@
                           accesskey="&newPrivateWindow.accesskey;"
                           command="Tools:PrivateBrowsing"
                           key="key_privatebrowsing"/>
-#ifdef E10S_TESTING_ONLY
-                <menuitem id="menu_newNonRemoteWindow"
-                          label="&newNonRemoteWindow.label;"
-                          hidden="true"
-                          command="Tools:NonRemoteWindow"/>
-#endif
 #ifdef MAC_NON_BROWSER_WINDOW
                 <menuitem id="menu_openLocation"
                           label="&openLocationCmd.label;"
diff --git a/browser/base/content/browser-places.js b/browser/base/content/browser-places.js
index 14e90cde2..a447880be 100644
--- a/browser/base/content/browser-places.js
+++ b/browser/base/content/browser-places.js
@@ -1555,6 +1555,10 @@ var BookmarkingUI = {
     // so kill current view and let popupshowing generate a new one.
     if (this.button._placesView)
       this.button._placesView.uninit();
+    // ...and do the same for the menu bar.
+    let menubar = document.getElementById("bookmarksMenu");
+    if (menubar && menubar._placesView)
+      menubar._placesView.uninit();
 
     // We have to do the same thing for the "special" views underneath the
     // the bookmarks menu.
diff --git a/browser/base/content/browser-sets.inc b/browser/base/content/browser-sets.inc
index a5a4ae8aa..0c753520f 100644
--- a/browser/base/content/browser-sets.inc
+++ b/browser/base/content/browser-sets.inc
@@ -103,10 +103,6 @@
      oncommand="Cc['@mozilla.org/browser/browserglue;1'].getService(Ci.nsIBrowserGlue).sanitize(window);"/>
     <command id="Tools:PrivateBrowsing"
       oncommand="OpenBrowserWindow({private: true});" reserved="true"/>
-#ifdef E10S_TESTING_ONLY
-    <command id="Tools:NonRemoteWindow"
-      oncommand="OpenBrowserWindow({remote: false});"/>
-#endif
     <command id="History:UndoCloseTab" oncommand="undoCloseTab();"/>
     <command id="History:UndoCloseWindow" oncommand="undoCloseWindow();"/>
     <command id="Social:SharePage" oncommand="SocialShare.sharePage();"/>
diff --git a/browser/base/content/browser.js b/browser/base/content/browser.js
index 910dc4f68..d41e94ae6 100755
--- a/browser/base/content/browser.js
+++ b/browser/base/content/browser.js
@@ -1217,9 +1217,6 @@ var gBrowserInit = {
     BrowserOffline.init();
     IndexedDBPromptHelper.init();
 
-    if (AppConstants.E10S_TESTING_ONLY)
-      gRemoteTabsUI.init();
-
     // Initialize the full zoom setting.
     // We do this before the session restore service gets initialized so we can
     // apply full zoom settings to tabs restored by the session restore service.
@@ -1651,10 +1648,6 @@ if (AppConstants.platform == "macosx") {
 
     // initialize the sync UI
     gSyncUI.init();
-
-    if (AppConstants.E10S_TESTING_ONLY) {
-      gRemoteTabsUI.init();
-    }
   };
 
   gBrowserInit.nonBrowserWindowShutdown = function() {
@@ -7835,16 +7828,6 @@ var TabContextMenu = {
     for (let menuItem of menuItems)
       menuItem.disabled = disabled;
 
-    if (AppConstants.E10S_TESTING_ONLY) {
-      menuItems = aPopupMenu.getElementsByAttribute("tbattr", "tabbrowser-remote");
-      for (let menuItem of menuItems) {
-        menuItem.hidden = !gMultiProcessBrowser;
-        if (menuItem.id == "context_openNonRemoteWindow") {
-          menuItem.disabled = !!parseInt(this.contextTab.getAttribute("usercontextid"));
-        }
-      }
-    }
-
     disabled = gBrowser.visibleTabs.length == 1;
     menuItems = aPopupMenu.getElementsByAttribute("tbattr", "tabbrowser-multiple-visible");
     for (let menuItem of menuItems)
@@ -7913,7 +7896,7 @@ var TabContextMenu = {
 Object.defineProperty(this, "HUDService", {
   get: function HUDService_getter() {
     let devtools = Cu.import("resource://devtools/shared/Loader.jsm", {}).devtools;
-    return devtools.require("devtools/client/webconsole/hudservice");
+    return devtools.require("devtools/client/webconsole/hudservice").HUDService;
   },
   configurable: true,
   enumerable: true
diff --git a/browser/base/content/browser.xul b/browser/base/content/browser.xul
index be17fb0e2..ae531e167 100644
--- a/browser/base/content/browser.xul
+++ b/browser/base/content/browser.xul
@@ -98,12 +98,6 @@
                 accesskey="&moveToNewWindow.accesskey;"
                 tbattr="tabbrowser-multiple"
                 oncommand="gBrowser.replaceTabWithWindow(TabContextMenu.contextTab);"/>
-#ifdef E10S_TESTING_ONLY
-      <menuitem id="context_openNonRemoteWindow" label="Open in new non-e10s window"
-                tbattr="tabbrowser-remote"
-                hidden="true"
-                oncommand="gBrowser.openNonRemoteWindow(TabContextMenu.contextTab);"/>
-#endif
       <menuseparator id="context_sendTabToDevice_separator" hidden="true"/>
       <menu id="context_sendTabToDevice" label="&sendTabToDevice.label;"
             accesskey="&sendTabToDevice.accesskey;" hidden="true">
diff --git a/browser/base/content/newtab/customize.js b/browser/base/content/newtab/customize.js
index 28a52373c..39724fa91 100644
--- a/browser/base/content/newtab/customize.js
+++ b/browser/base/content/newtab/customize.js
@@ -25,7 +25,6 @@ var gCustomize = {
     this._nodes.button.addEventListener("click", e => this.showPanel(e));
     this._nodes.blank.addEventListener("click", this);
     this._nodes.classic.addEventListener("click", this);
-    this._nodes.enhanced.addEventListener("click", this);
     this._nodes.learn.addEventListener("click", this);
 
     this.updateSelected();
@@ -87,11 +86,7 @@ var gCustomize = {
         sendAsyncMessage("NewTab:Customize", {enabled: false, enhanced: false});
         break;
       case "newtab-customize-classic":
-        if (this._nodes.enhanced.getAttribute("selected")){
-          sendAsyncMessage("NewTab:Customize", {enabled: true, enhanced: true});
-        } else {
-          sendAsyncMessage("NewTab:Customize", {enabled: true, enhanced: false});
-        }
+        sendAsyncMessage("NewTab:Customize", {enabled: true, enhanced: false});
         break;
       case "newtab-customize-enhanced":
         sendAsyncMessage("NewTab:Customize", {enabled: true, enhanced: !gAllPages.enhanced});
@@ -114,9 +109,9 @@ var gCustomize = {
   },
 
   updateSelected: function() {
-    let {enabled, enhanced} = gAllPages;
-    let selected = enabled ? enhanced ? "enhanced" : "classic" : "blank";
-    ["enhanced", "classic", "blank"].forEach(id => {
+    let {enabled} = gAllPages;
+    let selected = enabled ? "classic" : "blank";
+    ["classic", "blank"].forEach(id => {
       let node = this._nodes[id];
       if (id == selected) {
         node.setAttribute("selected", true);
@@ -125,9 +120,5 @@ var gCustomize = {
         node.removeAttribute("selected");
       }
     });
-    if (selected == "enhanced") {
-      // If enhanced is selected, so is classic (since enhanced is a subitem of classic)
-      this._nodes.classic.setAttribute("selected", true);
-    }
   },
 };
diff --git a/browser/base/content/newtab/newTab.xhtml b/browser/base/content/newtab/newTab.xhtml
index 07fb0093e..eef51b4b2 100644
--- a/browser/base/content/newtab/newTab.xhtml
+++ b/browser/base/content/newtab/newTab.xhtml
@@ -33,15 +33,8 @@
           <div id="newtab-customize-title" class="newtab-customize-panel-item">
             <label>&newtab.customize.cog.title2;</label>
           </div>
-
-          <div class="newtab-customize-complex-option">
-            <div id="newtab-customize-classic" class="newtab-customize-panel-superitem newtab-customize-panel-item selectable">
-                <label>&newtab.customize.classic;</label>
-            </div>
-            <div id="newtab-customize-enhanced" class="newtab-customize-panel-subitem">
-                <label class="checkbox"></label>
-                <label>&newtab.customize.cog.enhanced;</label>
-            </div>
+          <div id="newtab-customize-classic" class="newtab-customize-panel-item selectable">
+            <label>&newtab.customize.classic;</label>
           </div>
           <div id="newtab-customize-blank" class="newtab-customize-panel-item selectable">
             <label>&newtab.customize.blank2;</label>
diff --git a/browser/base/content/tabbrowser.xml b/browser/base/content/tabbrowser.xml
index 0cb0f3bd6..b27846835 100644
--- a/browser/base/content/tabbrowser.xml
+++ b/browser/base/content/tabbrowser.xml
@@ -3222,20 +3222,6 @@
         </body>
       </method>
 
-      <!-- Opens a given tab to a non-remote window. -->
-      <method name="openNonRemoteWindow">
-        <parameter name="aTab"/>
-        <body>
-          <![CDATA[
-            if (!this.AppConstants.E10S_TESTING_ONLY) {
-              throw "This method is intended only for e10s testing!";
-            }
-            let url = aTab.linkedBrowser.currentURI.spec;
-            return window.openDialog("chrome://browser/content/", "_blank", "chrome,all,dialog=no,non-remote", url);
-          ]]>
-        </body>
-      </method>
-
       <method name="moveTabTo">
         <parameter name="aTab"/>
         <parameter name="aIndex"/>
@@ -4581,8 +4567,7 @@
               label = this.mStringBundle.getString(stringID);
             }
           } else {
-            label = tab.getAttribute("label") +
-                      (this.AppConstants.E10S_TESTING_ONLY && tab.linkedBrowser && tab.linkedBrowser.isRemoteBrowser ? " - e10s" : "");
+            label = tab.getAttribute("label");
           }
           event.target.setAttribute("label", label);
         ]]></body>
diff --git a/browser/base/jar.mn b/browser/base/jar.mn
index 3fa5ea408..a65c77338 100644
--- a/browser/base/jar.mn
+++ b/browser/base/jar.mn
@@ -80,7 +80,7 @@ browser.jar:
         content/browser/browser-fullZoom.js           (content/browser-fullZoom.js)
         content/browser/browser-fxaccounts.js         (content/browser-fxaccounts.js)
         content/browser/browser-gestureSupport.js     (content/browser-gestureSupport.js)
-        content/browser/browser-media.js              (content/browser-media.js)
+*       content/browser/browser-media.js              (content/browser-media.js)
         content/browser/browser-places.js             (content/browser-places.js)
         content/browser/browser-plugins.js            (content/browser-plugins.js)
         content/browser/browser-refreshblocker.js     (content/browser-refreshblocker.js)
diff --git a/browser/branding/official/pref/firefox-branding.js b/browser/branding/official/pref/firefox-branding.js
index eb2bf489b..190b84e78 100644
--- a/browser/branding/official/pref/firefox-branding.js
+++ b/browser/branding/official/pref/firefox-branding.js
@@ -37,6 +37,10 @@ pref("app.update.url.manual", "https://@BRANDING_SITEURL@/");
 // supplied in the "An update is available" page of the update wizard.
 pref("app.update.url.details", "https://@BRANDING_SITEURL@/@BRANDING_RELNOTESPATH@");
 
+// Provide UA Gecko and Firefox slices for web compatibility
+pref("general.useragent.compatMode.firefox",true);
+pref("general.useragent.compatMode.gecko",true);
+
 // Switch Application Updates off for now
 pref("app.update.enabled", false);
 
diff --git a/browser/branding/shared/branding.mozbuild b/browser/branding/shared/branding.mozbuild
index 29d25094f..e6fee3f4e 100644
--- a/browser/branding/shared/branding.mozbuild
+++ b/browser/branding/shared/branding.mozbuild
@@ -33,9 +33,9 @@ def ApplicationBranding():
     elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'cocoa':
         BRANDING_FILES += [
             '../shared/dsstore',
+            'background.png',
             'disk.icns',
             'document.icns',
-            'background.png',
             'firefox.icns',
         ]
     elif 'gtk' in CONFIG['MOZ_WIDGET_TOOLKIT']:
@@ -53,4 +53,4 @@ def ApplicationBranding():
         ]
     DEFINES['MOZ_APP_VERSION'] = CONFIG['MOZ_APP_VERSION']
     DEFINES['MOZ_BRANDING_DIRECTORY'] = CONFIG['MOZ_BRANDING_DIRECTORY']
-    DEFINES['MOZILLA_UAVERSION_U'] = CONFIG['MOZILLA_UAVERSION_U']
\ No newline at end of file
+    DEFINES['MOZILLA_UAVERSION_U'] = CONFIG['MOZILLA_UAVERSION_U']
diff --git a/browser/components/BrowserComponents.manifest b/browser/components/BrowserComponents.manifest
index dbfc3d2ec..0c80006be 100644
--- a/browser/components/BrowserComponents.manifest
+++ b/browser/components/BrowserComponents.manifest
@@ -39,6 +39,4 @@ component {eab9012e-5f74-4cbc-b2b5-a590235513cc} nsBrowserGlue.js
 contract @mozilla.org/browser/browserglue;1 {eab9012e-5f74-4cbc-b2b5-a590235513cc}
 category app-startup nsBrowserGlue service,@mozilla.org/browser/browserglue;1 application={3c2e2abc-06d4-11e1-ac3b-374f68613e61} application={ec8030f7-c20a-464f-9b0e-13a3a9e97384} application={aa3c5121-dab2-40e2-81ca-7ea25febc110} application={a23983c0-fd0e-11dc-95ff-0800200c9a66} application={d1bfe7d9-c01e-4237-998b-7b5f960a4314}
 component {d8903bf6-68d5-4e97-bcd1-e4d3012f721a} nsBrowserGlue.js
-#ifndef MOZ_MULET
 contract @mozilla.org/content-permission/prompt;1 {d8903bf6-68d5-4e97-bcd1-e4d3012f721a}
-#endif
diff --git a/browser/components/customizableui/CustomizableUI.jsm b/browser/components/customizableui/CustomizableUI.jsm
index 01389108d..cb0f519b2 100644
--- a/browser/components/customizableui/CustomizableUI.jsm
+++ b/browser/components/customizableui/CustomizableUI.jsm
@@ -207,15 +207,6 @@ var CustomizableUIInternal = {
       panelPlacements.splice(-1, 0, "developer-button");
     }
 
-    if (AppConstants.E10S_TESTING_ONLY) {
-      if (gPalette.has("e10s-button")) {
-        let newWindowIndex = panelPlacements.indexOf("new-window-button");
-        if (newWindowIndex > -1) {
-          panelPlacements.splice(newWindowIndex + 1, 0, "e10s-button");
-        }
-      }
-    }
-
     let showCharacterEncoding = Services.prefs.getComplexValue(
       "browser.menu.showCharacterEncoding",
       Ci.nsIPrefLocalizedString
diff --git a/browser/components/customizableui/CustomizableWidgets.jsm b/browser/components/customizableui/CustomizableWidgets.jsm
index 1e68b01c1..3e83b081c 100644
--- a/browser/components/customizableui/CustomizableWidgets.jsm
+++ b/browser/components/customizableui/CustomizableWidgets.jsm
@@ -1258,21 +1258,3 @@ if (Services.prefs.getBoolPref("privacy.panicButton.enabled")) {
     },
   });
 }
-
-if (AppConstants.E10S_TESTING_ONLY) {
-  if (Services.appinfo.browserTabsRemoteAutostart) {
-    CustomizableWidgets.push({
-      id: "e10s-button",
-      defaultArea: CustomizableUI.AREA_PANEL,
-      onBuild: function(aDocument) {
-        let node = aDocument.createElementNS(kNSXUL, "toolbarbutton");
-        node.setAttribute("label", CustomizableUI.getLocalizedProperty(this, "label"));
-        node.setAttribute("tooltiptext", CustomizableUI.getLocalizedProperty(this, "tooltiptext"));
-      },
-      onCommand: function(aEvent) {
-        let win = aEvent.view;
-        win.OpenBrowserWindow({remote: false});
-      },
-    });
-  }
-}
diff --git a/browser/components/nsBrowserContentHandler.js b/browser/components/nsBrowserContentHandler.js
index e8fe0fe93..b366c3f81 100644
--- a/browser/components/nsBrowserContentHandler.js
+++ b/browser/components/nsBrowserContentHandler.js
@@ -454,16 +454,16 @@ nsBrowserContentHandler.prototype = {
 
   get helpInfo() {
     let info =
-              "  --browser          Open a browser window.\n" +
-              "  --new-window <url> Open <url> in a new window.\n" +
-              "  --new-tab <url>    Open <url> in a new tab.\n" +
-              "  --private-window <url> Open <url> in a new private window.\n";
+              "  --browser                                    Open a browser window.\n" +
+              "  --new-window <url>                           Open <url> in a new window.\n" +
+              "  --new-tab <url>                              Open <url> in a new tab.\n" +
+              "  --private-window <url>                       Open <url> in a new private window.\n";
     if (AppConstants.platform == "win") {
-      info += "  --preferences      Open Options dialog.\n";
+      info += "  --preferences                                Open Options dialog.\n";
     } else {
-      info += "  --preferences      Open Preferences dialog.\n";
+      info += "  --preferences                                Open Preferences dialog.\n";
     }
-    info += "  --search <term>    Search <term> with your default search engine.\n";
+    info += "  --search <term>                              Search <term> with your default search engine.\n";
     return info;
   },
 
diff --git a/browser/components/nsBrowserGlue.js b/browser/components/nsBrowserGlue.js
index d69a11f6b..f97c173a0 100644
--- a/browser/components/nsBrowserGlue.js
+++ b/browser/components/nsBrowserGlue.js
@@ -64,6 +64,7 @@ XPCOMUtils.defineLazyServiceGetter(this, "AlertsService", "@mozilla.org/alerts-s
   ["Task", "resource://gre/modules/Task.jsm"],
   ["UITour", "resource:///modules/UITour.jsm"],
   ["URLBarZoom", "resource:///modules/URLBarZoom.jsm"],
+  ["UserAgentOverrides", "resource://gre/modules/UserAgentOverrides.jsm"],
   ["WebChannel", "resource://gre/modules/WebChannel.jsm"],
   ["WindowsRegistry", "resource://gre/modules/WindowsRegistry.jsm"],
   ["webrtcUI", "resource:///modules/webrtcUI.jsm"],
@@ -662,6 +663,8 @@ BrowserGlue.prototype = {
       }
     } catch (ex) { /* missing any of the prefs is not critical */ }
 
+    UserAgentOverrides.init();
+    
     PageThumbs.init();
     webrtcUI.init();
     AboutHome.init();
@@ -1042,6 +1045,7 @@ BrowserGlue.prototype = {
 
     BrowserUsageTelemetry.uninit();
     SelfSupportBackend.uninit();
+    UserAgentOverrides.uninit();
     PageThumbs.uninit();
     NewTabMessages.uninit();
     AboutNewTab.uninit();
diff --git a/browser/components/places/PlacesUIUtils.jsm b/browser/components/places/PlacesUIUtils.jsm
index b25835a71..17fa276aa 100644
--- a/browser/components/places/PlacesUIUtils.jsm
+++ b/browser/components/places/PlacesUIUtils.jsm
@@ -46,43 +46,6 @@ let gFaviconLoadDataMap = new Map();
 // copied from utilityOverlay.js
 const TAB_DROP_TYPE = "application/x-moz-tabbrowser-tab";
 
-// This function isn't public both because it's synchronous and because it is
-// going to be removed in bug 1072833.
-function IsLivemark(aItemId) {
-  // Since this check may be done on each dragover event, it's worth maintaining
-  // a cache.
-  let self = IsLivemark;
-  if (!("ids" in self)) {
-    const LIVEMARK_ANNO = PlacesUtils.LMANNO_FEEDURI;
-
-    let idsVec = PlacesUtils.annotations.getItemsWithAnnotation(LIVEMARK_ANNO);
-    self.ids = new Set(idsVec);
-
-    let obs = Object.freeze({
-      QueryInterface: XPCOMUtils.generateQI(Ci.nsIAnnotationObserver),
-
-      onItemAnnotationSet(itemId, annoName) {
-        if (annoName == LIVEMARK_ANNO)
-          self.ids.add(itemId);
-      },
-
-      onItemAnnotationRemoved(itemId, annoName) {
-        // If annoName is set to an empty string, the item is gone.
-        if (annoName == LIVEMARK_ANNO || annoName == "")
-          self.ids.delete(itemId);
-      },
-
-      onPageAnnotationSet() { },
-      onPageAnnotationRemoved() { },
-    });
-    PlacesUtils.annotations.addObserver(obs);
-    PlacesUtils.registerShutdownFunction(() => {
-      PlacesUtils.annotations.removeObserver(obs);
-    });
-  }
-  return self.ids.has(aItemId);
-}
-
 let InternalFaviconLoader = {
   /**
    * This gets called for every inner window that is destroyed.
@@ -509,6 +472,52 @@ this.PlacesUIUtils = {
   },
 
   /**
+   * Test if a bookmark item = a live bookmark item.
+   *
+   * @param aItemId
+   *        item identifier
+   * @return true if a live bookmark item, false otherwise.
+   *
+   * @note Maybe this should be removed later, see bug 1072833.
+   */
+  _isLivemark:
+  function PUIU__isLivemark(aItemId)
+  {
+    // Since this check may be done on each dragover event, it's worth maintaining
+    // a cache.
+    let self = PUIU__isLivemark;
+    if (!("ids" in self)) {
+      const LIVEMARK_ANNO = PlacesUtils.LMANNO_FEEDURI;
+
+      let idsVec = PlacesUtils.annotations.getItemsWithAnnotation(LIVEMARK_ANNO);
+      self.ids = new Set(idsVec);
+
+      let obs = Object.freeze({
+        QueryInterface: XPCOMUtils.generateQI(Ci.nsIAnnotationObserver),
+
+        onItemAnnotationSet(itemId, annoName) {
+          if (annoName == LIVEMARK_ANNO)
+            self.ids.add(itemId);
+        },
+
+        onItemAnnotationRemoved(itemId, annoName) {
+          // If annoName is set to an empty string, the item is gone.
+          if (annoName == LIVEMARK_ANNO || annoName == "")
+            self.ids.delete(itemId);
+        },
+
+        onPageAnnotationSet() { },
+        onPageAnnotationRemoved() { },
+      });
+      PlacesUtils.annotations.addObserver(obs);
+      PlacesUtils.registerShutdownFunction(() => {
+        PlacesUtils.annotations.removeObserver(obs);
+      });
+    }
+    return self.ids.has(aItemId);
+  },
+
+  /**
    * Constructs a Transaction for the drop or paste of a blob of data into
    * a container.
    * @param   data
@@ -857,7 +866,7 @@ this.PlacesUIUtils = {
       throw new Error("invalid value for aNodeOrItemId");
     }
 
-    if (itemId == PlacesUtils.placesRootId || IsLivemark(itemId))
+    if (itemId == PlacesUtils.placesRootId || this._isLivemark(itemId))
       return true;
 
     // leftPaneFolderId, and as a result, allBookmarksFolderId, is a lazy getter
diff --git a/browser/components/places/content/treeView.js b/browser/components/places/content/treeView.js
index 5baf3a21f..181bb5404 100644
--- a/browser/components/places/content/treeView.js
+++ b/browser/components/places/content/treeView.js
@@ -170,7 +170,9 @@ PlacesTreeView.prototype = {
     let row = -1;
     let useNodeIndex = typeof(aNodeIndex) == "number";
     if (parent == this._rootNode) {
-      row = useNodeIndex ? aNodeIndex : this._rootNode.getChildIndex(aNode);
+      if (aNode instanceof Ci.nsINavHistoryResultNode) { 
+        row = useNodeIndex ? aNodeIndex : this._rootNode.getChildIndex(aNode); 
+      }
     }
     else if (useNodeIndex && typeof(aParentRow) == "number") {
       // If we have both the row of the parent node, and the node's index, we
diff --git a/browser/components/preferences/in-content/content.js b/browser/components/preferences/in-content/content.js
index 5ba334b02..a957b1dd5 100644
--- a/browser/components/preferences/in-content/content.js
+++ b/browser/components/preferences/in-content/content.js
@@ -78,6 +78,7 @@ var gContentPane = {
     document.getElementById("notificationsPolicyLearnMore").setAttribute("href",
                                                                          notificationInfoURL);
 
+#ifdef MOZ_EME
     let drmInfoURL =
       Services.urlFormatter.formatURLPref("app.support.baseURL") + "drm-content";
     document.getElementById("playDRMContentLink").setAttribute("href", drmInfoURL);
@@ -91,6 +92,7 @@ var gContentPane = {
       // of the pane hiding/showing code potentially interfering:
       document.getElementById("drmGroup").setAttribute("style", "display: none !important");
     }
+#endif
   },
 
   // UTILITY FUNCTIONS
diff --git a/browser/components/preferences/in-content/content.xul b/browser/components/preferences/in-content/content.xul
index c646c16a2..9434cba62 100644
--- a/browser/components/preferences/in-content/content.xul
+++ b/browser/components/preferences/in-content/content.xul
@@ -6,10 +6,12 @@
 
 <preferences id="contentPreferences" hidden="true" data-category="paneContent">
 
+#ifdef MOZ_EME
   <!-- DRM content -->
   <preference id="media.eme.enabled"
               name="media.eme.enabled"
               type="bool"/>
+#endif
 
   <!-- Popups -->
   <preference id="dom.disable_open_during_load"
@@ -40,6 +42,7 @@
   <html:a class="help-button" target="_blank" aria-label="&helpButton.label;"></html:a>
 </hbox>
 
+#ifdef MOZ_EME
 <groupbox id="drmGroup" data-category="paneContent" hidden="true">
   <caption><label>&drmContent.label;</label></caption>
   <grid id="contentGrid2">
@@ -60,6 +63,7 @@
     </rows>
   </grid>
 </groupbox>
+#endif
 
 <groupbox id="notificationsGroup" data-category="paneContent" hidden="true">
   <caption><label>&notificationsPolicy.label;</label></caption>
diff --git a/browser/components/preferences/in-content/jar.mn b/browser/components/preferences/in-content/jar.mn
index 52f536e96..3497ff555 100644
--- a/browser/components/preferences/in-content/jar.mn
+++ b/browser/components/preferences/in-content/jar.mn
@@ -12,7 +12,7 @@ browser.jar:
    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
+*  content/browser/preferences/in-content/content.js
    content/browser/preferences/in-content/sync.js
    content/browser/preferences/in-content/security.js
    content/browser/preferences/in-content/search.js
diff --git a/browser/components/preferences/in-content/main.js b/browser/components/preferences/in-content/main.js
index 4f20ba8c3..bac771bec 100644
--- a/browser/components/preferences/in-content/main.js
+++ b/browser/components/preferences/in-content/main.js
@@ -11,11 +11,6 @@ Components.utils.import("resource:///modules/TransientPrefs.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "OS",
                                   "resource://gre/modules/osfile.jsm");
 
-if (AppConstants.E10S_TESTING_ONLY) {
-  XPCOMUtils.defineLazyModuleGetter(this, "UpdateUtils",
-                                    "resource://gre/modules/UpdateUtils.jsm");
-}
-
 var gMainPane = {
   /**
    * Initialization of this.
@@ -83,26 +78,6 @@ var gMainPane = {
     setEventListener("chooseFolder", "command",
                      gMainPane.chooseFolder);
 
-    if (AppConstants.E10S_TESTING_ONLY) {
-      setEventListener("e10sAutoStart", "command",
-                       gMainPane.enableE10SChange);
-      let e10sCheckbox = document.getElementById("e10sAutoStart");
-
-      let e10sPref = document.getElementById("browser.tabs.remote.autostart");
-      let e10sTempPref = document.getElementById("e10sTempPref");
-      let e10sForceEnable = document.getElementById("e10sForceEnable");
-
-      let preffedOn = e10sPref.value || e10sTempPref.value || e10sForceEnable.value;
-
-      if (preffedOn) {
-        // The checkbox is checked if e10s is preffed on and enabled.
-        e10sCheckbox.checked = Services.appinfo.browserTabsRemoteAutostart;
-
-        // but if it's force disabled, then the checkbox is disabled.
-        e10sCheckbox.disabled = !Services.appinfo.browserTabsRemoteAutostart;
-      }
-    }
-
     if (AppConstants.MOZ_DEV_EDITION) {
       let uAppData = OS.Constants.Path.userApplicationDataDir;
       let ignoreSeparateProfile = OS.Path.join(uAppData, "ignore-dev-edition-profile");
@@ -123,36 +98,7 @@ var gMainPane = {
 
   enableE10SChange: function ()
   {
-    if (AppConstants.E10S_TESTING_ONLY) {
-      let e10sCheckbox = document.getElementById("e10sAutoStart");
-      let e10sPref = document.getElementById("browser.tabs.remote.autostart");
-      let e10sTempPref = document.getElementById("e10sTempPref");
-
-      let prefsToChange;
-      if (e10sCheckbox.checked) {
-        // Enabling e10s autostart
-        prefsToChange = [e10sPref];
-      } else {
-        // Disabling e10s autostart
-        prefsToChange = [e10sPref];
-        if (e10sTempPref.value) {
-         prefsToChange.push(e10sTempPref);
-        }
-      }
-
-      let buttonIndex = confirmRestartPrompt(e10sCheckbox.checked, 0,
-                                             true, false);
-      if (buttonIndex == CONFIRM_RESTART_PROMPT_RESTART_NOW) {
-        for (let prefToChange of prefsToChange) {
-          prefToChange.value = e10sCheckbox.checked;
-        }
-
-        Services.startup.quit(Ci.nsIAppStartup.eAttemptQuit |  Ci.nsIAppStartup.eRestart);
-      }
-
-      // Revert the checkbox in case we didn't quit
-      e10sCheckbox.checked = e10sPref.value || e10sTempPref.value;
-    }
+    // **STUB**
   },
 
   separateProfileModeChange: function ()
diff --git a/browser/components/preferences/in-content/main.xul b/browser/components/preferences/in-content/main.xul
index 526bbc714..8eca11877 100644
--- a/browser/components/preferences/in-content/main.xul
+++ b/browser/components/preferences/in-content/main.xul
@@ -9,18 +9,6 @@
 
 <preferences id="mainPreferences" hidden="true" data-category="paneGeneral">
 
-#ifdef E10S_TESTING_ONLY
-    <preference id="browser.tabs.remote.autostart"
-                name="browser.tabs.remote.autostart"
-                type="bool"/>
-    <preference id="e10sTempPref"
-                name="browser.tabs.remote.autostart.2"
-                type="bool"/>
-    <preference id="e10sForceEnable"
-                name="browser.tabs.remote.force-enable"
-                type="bool"/>
-#endif
-
     <!-- Startup -->
     <preference id="browser.startup.page"
                 name="browser.startup.page"
@@ -135,11 +123,6 @@
   </vbox>
 #endif
 
-#ifdef E10S_TESTING_ONLY
-  <checkbox id="e10sAutoStart"
-            label="&e10sEnabled.label;"/>
-#endif
-
 #ifdef HAVE_SHELL_SERVICE
   <vbox id="defaultBrowserBox">
     <hbox align="center">
diff --git a/browser/components/sessionstore/SessionStore.jsm b/browser/components/sessionstore/SessionStore.jsm
index 2f44b2af3..93e21357f 100644
--- a/browser/components/sessionstore/SessionStore.jsm
+++ b/browser/components/sessionstore/SessionStore.jsm
@@ -186,6 +186,15 @@ XPCOMUtils.defineLazyModuleGetter(this, "ViewSourceBrowser",
 XPCOMUtils.defineLazyModuleGetter(this, "AsyncShutdown",
   "resource://gre/modules/AsyncShutdown.jsm");
 
+Object.defineProperty(this, "HUDService", {
+  get: function HUDService_getter() {
+    let devtools = Cu.import("resource://devtools/shared/Loader.jsm", {}).devtools;
+    return devtools.require("devtools/client/webconsole/hudservice").HUDService;
+  },
+  configurable: true,
+  enumerable: true
+});
+
 /**
  * |true| if we are in debug mode, |false| otherwise.
  * Debug mode is controlled by preference browser.sessionstore.debug
@@ -2570,10 +2579,16 @@ var SessionStoreInternal = {
       this._capClosedWindows();
     }
 
+    // Scratchpad
     if (lastSessionState.scratchpads) {
       ScratchpadManager.restoreSession(lastSessionState.scratchpads);
     }
 
+    // The Browser Console
+    if (lastSessionState.browserConsole) {
+      HUDService.restoreBrowserConsoleSession();
+    }
+
     // Set data that persists between sessions
     this._recentCrashes = lastSessionState.session &&
                           lastSessionState.session.recentCrashes || 0;
@@ -2931,6 +2946,7 @@ var SessionStoreInternal = {
       global: this._globalState.getState()
     };
 
+    // Scratchpad
     if (Cu.isModuleLoaded("resource://devtools/client/scratchpad/scratchpad-manager.jsm")) {
       // get open Scratchpad window states too
       let scratchpads = ScratchpadManager.getSessionState();
@@ -2939,6 +2955,9 @@ var SessionStoreInternal = {
       }
     }
 
+    // The Browser Console
+    state.browserConsole = HUDService.getBrowserConsoleSessionState();
+
     // Persist the last session if we deferred restoring it
     if (LastSession.canRestore) {
       state.lastSessionState = LastSession.getState();
@@ -3290,9 +3309,15 @@ var SessionStoreInternal = {
 
     this.restoreWindow(aWindow, root.windows[0], aOptions);
 
+    // Scratchpad
     if (aState.scratchpads) {
       ScratchpadManager.restoreSession(aState.scratchpads);
     }
+
+    // The Browser Console
+    if (aState.browserConsole) {
+      HUDService.restoreBrowserConsoleSession();
+    }
   },
 
   /**
diff --git a/browser/components/shell/nsSetDefaultBrowser.js b/browser/components/shell/nsSetDefaultBrowser.js
index bb09ab213..c7a78c538 100644
--- a/browser/components/shell/nsSetDefaultBrowser.js
+++ b/browser/components/shell/nsSetDefaultBrowser.js
@@ -21,7 +21,7 @@ nsSetDefaultBrowser.prototype = {
     }
   },
 
-  helpInfo: "  --setDefaultBrowser Set this app as the default browser.\n",
+  helpInfo: "  --setDefaultBrowser                          Set this app as the default browser.\n",
 
   classID: Components.ID("{F57899D0-4E2C-4ac6-9E29-50C736103B0C}"),
   QueryInterface: XPCOMUtils.generateQI([Ci.nsICommandLineHandler]),
diff --git a/browser/config/version.txt b/browser/config/version.txt
index b406fbef6..d90a8c220 100644
--- a/browser/config/version.txt
+++ b/browser/config/version.txt
@@ -1 +1 @@
-55.0.0
+52.9.0
diff --git a/browser/config/version_display.txt b/browser/config/version_display.txt
index b406fbef6..d90a8c220 100644
--- a/browser/config/version_display.txt
+++ b/browser/config/version_display.txt
@@ -1 +1 @@
-55.0.0
+52.9.0
diff --git a/browser/confvars.sh b/browser/confvars.sh
index 65cf154e9..8cdd6e1f3 100755
--- a/browser/confvars.sh
+++ b/browser/confvars.sh
@@ -18,7 +18,7 @@ if test "$OS_ARCH" = "WINNT"; then
   MOZ_MAINTENANCE_SERVICE=
 fi
 
-# For Basilisk we want to use 55.0.YYYY.MM.DD as MOZ_APP_VERSION in release
+# 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.
 # To enable add "export BASILISK_VERSION=1" to the .mozconfig file.
@@ -26,7 +26,7 @@ fi
 # don't export the variable if you are in development or don't care.
 # When not exported we fall back the value in the version*.txt file.
 if test -n "$BASILISK_VERSION" ; then
-    MOZ_APP_VERSION=55.0.`date --utc '+%Y.%m.%d'`
+    MOZ_APP_VERSION=52.9.`date --utc '+%Y.%m.%d'`
     MOZ_APP_VERSION_DISPLAY=`date --utc '+%Y.%m.%d'`
 else
     MOZ_APP_VERSION=`cat ${_topsrcdir}/$MOZ_BUILD_APP/config/version.txt`
@@ -53,17 +53,10 @@ MOZ_PROFILE_MIGRATOR=1
 MOZ_APP_STATIC_INI=1
 MOZ_WEBGL_CONFORMANT=1
 MOZ_JSDOWNLOADS=1
-MOZ_RUST_MP4PARSE=1
-MOZ_RUST_URLPARSE=1
+MOZ_WEBRTC=1
 MOZ_WEBEXTENSIONS=1
+MOZ_DEVTOOLS=1
 
 # Disable checking that add-ons are signed by the trusted root
 MOZ_ADDON_SIGNING=0
 MOZ_REQUIRE_SIGNING=0
-
-# Include the DevTools client, not just the server (which is the default)
-if test -n "$BASILISK_DISABLE_DEVTOOLS" ; then
-MOZ_DEVTOOLS=
-else
-MOZ_DEVTOOLS=1
-fi
diff --git a/browser/installer/Makefile.in b/browser/installer/Makefile.in
index ccfce3cd9..4a934fe45 100644
--- a/browser/installer/Makefile.in
+++ b/browser/installer/Makefile.in
@@ -13,11 +13,7 @@ MOZ_PKG_MANIFEST = $(srcdir)/package-manifest.in
 MOZ_PKG_DUPEFLAGS = -f $(srcdir)/allowed-dupes.mn
 
 # Some files have been already bundled with xulrunner
-ifndef MOZ_MULET
 MOZ_PKG_FATAL_WARNINGS = 1
-else
-DEFINES += -DMOZ_MULET
-endif
 
 # When packaging an artifact build not all xpt files expected by the
 # packager will be present.
diff --git a/browser/installer/package-manifest.in b/browser/installer/package-manifest.in
index c2269c069..015daa8c7 100644
--- a/browser/installer/package-manifest.in
+++ b/browser/installer/package-manifest.in
@@ -821,15 +821,13 @@ bin/libfreebl_32int64_3.so
 
 
 ; media
+#ifdef MOZ_EME
 @RESPATH@/gmp-clearkey/0.1/@DLL_PREFIX@clearkey@DLL_SUFFIX@
 @RESPATH@/gmp-clearkey/0.1/clearkey.info
+#endif
 
 ; gfx
 #ifdef XP_WIN
 @RESPATH@/components/GfxSanityTest.manifest
 @RESPATH@/components/SanityTest.js
 #endif
-
-#ifdef MOZ_MULET
-#include ../../b2g/installer/package-manifest.in
-#endif
diff --git a/browser/installer/windows/Makefile.in b/browser/installer/windows/Makefile.in
index a8305d077..600bdfeb6 100644
--- a/browser/installer/windows/Makefile.in
+++ b/browser/installer/windows/Makefile.in
@@ -5,7 +5,7 @@
 include $(topsrcdir)/toolkit/mozapps/installer/package-name.mk
 
 CONFIG_DIR = instgen
-SFX_MODULE = $(topsrcdir)/other-licenses/7zstub/firefox/7zSD.sfx
+SFX_MODULE = $(topsrcdir)/other-licenses/7zstub/uxp/7zSD.sfx
 
 INSTALLER_FILES = \
 	app.tag \
diff --git a/browser/locales/en-US/chrome/browser/browser.properties b/browser/locales/en-US/chrome/browser/browser.properties
index 6f3aab397..31f61632b 100644
--- a/browser/locales/en-US/chrome/browser/browser.properties
+++ b/browser/locales/en-US/chrome/browser/browser.properties
@@ -85,11 +85,14 @@ addonInstallError-2=The add-on could not be installed because it does not match
 addonInstallError-3=The add-on downloaded from this site could not be installed because it appears to be corrupt.
 addonInstallError-4=%2$S could not be installed because %1$S cannot modify the needed file.
 addonInstallError-5=%1$S has prevented this site from installing an unverified add-on.
+addonInstallError-9=%2$S could not be installed because %1$S does not support WebExtensions.
 addonLocalInstallError-1=This add-on could not be installed because of a filesystem error.
 addonLocalInstallError-2=This add-on could not be installed because it does not match the add-on %1$S expected.
 addonLocalInstallError-3=This add-on could not be installed because it appears to be corrupt.
 addonLocalInstallError-4=%2$S could not be installed because %1$S cannot modify the needed file.
 addonLocalInstallError-5=This add-on could not be installed because it has not been verified.
+addonLocalInstallError-9=%2$S could not be installed because %1$S does not support WebExtensions.
+
 
 # LOCALIZATION NOTE (addonInstallErrorIncompatible):
 # %1$S is the application name, %2$S is the application version, %3$S is the add-on name
diff --git a/browser/modules/ContentWebRTC.jsm b/browser/modules/ContentWebRTC.jsm
index bfb98a868..fd50176a0 100644
--- a/browser/modules/ContentWebRTC.jsm
+++ b/browser/modules/ContentWebRTC.jsm
@@ -208,6 +208,7 @@ function prompt(aContentWindow, aWindowID, aCallID, aConstraints, aDevices, aSec
   let request = {
     callID: aCallID,
     windowID: aWindowID,
+    origin: aContentWindow.origin,
     documentURI: aContentWindow.document.documentURI,
     secure: aSecure,
     requestTypes: requestTypes,
diff --git a/browser/modules/webrtcUI.jsm b/browser/modules/webrtcUI.jsm
index b24135bfc..08de46bb3 100644
--- a/browser/modules/webrtcUI.jsm
+++ b/browser/modules/webrtcUI.jsm
@@ -290,7 +290,13 @@ function prompt(aBrowser, aRequest) {
   let {audioDevices: audioDevices, videoDevices: videoDevices,
        sharingScreen: sharingScreen, sharingAudio: sharingAudio,
        requestTypes: requestTypes} = aRequest;
-  let uri = Services.io.newURI(aRequest.documentURI, null, null);
+  let uri;
+  try {
+    // This fails for principals that serialize to "null", e.g. file URIs.
+    uri = Services.io.newURI(aRequest.origin, null, null);
+  } catch (e) {
+    uri = Services.io.newURI(aRequest.documentURI, null, null);
+  }
   let host = getHost(uri);
   let chromeDoc = aBrowser.ownerDocument;
   let chromeWin = chromeDoc.defaultView;
diff --git a/browser/themes/linux/jar.mn b/browser/themes/linux/jar.mn
index e09029438..0bf023f35 100644
--- a/browser/themes/linux/jar.mn
+++ b/browser/themes/linux/jar.mn
@@ -129,9 +129,6 @@ browser.jar:
   skin/classic/browser/syncQuota.css
   skin/classic/browser/syncProgress-horizontalbar.png
   skin/classic/browser/syncProgress-horizontalbar@2x.png
-#ifdef E10S_TESTING_ONLY
-  skin/classic/browser/e10s-64@2x.png (../shared/e10s-64@2x.png)
-#endif
 
 [extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}] chrome.jar:
 % override chrome://browser/skin/feeds/audioFeedIcon.png              chrome://browser/skin/feeds/feedIcon.png
diff --git a/browser/themes/osx/jar.mn b/browser/themes/osx/jar.mn
index fd9b6127d..98ba4e6ea 100644
--- a/browser/themes/osx/jar.mn
+++ b/browser/themes/osx/jar.mn
@@ -209,9 +209,6 @@ browser.jar:
   skin/classic/browser/yosemite/tab-stroke-end-inactive@2x.png         (tabbrowser/tab-stroke-end-yosemite-inactive@2x.png)
   skin/classic/browser/yosemite/tab-stroke-start-inactive.png          (tabbrowser/tab-stroke-start-yosemite-inactive.png)
   skin/classic/browser/yosemite/tab-stroke-start-inactive@2x.png       (tabbrowser/tab-stroke-start-yosemite-inactive@2x.png)
-#ifdef E10S_TESTING_ONLY
-  skin/classic/browser/e10s-64@2x.png (../shared/e10s-64@2x.png)
-#endif
 
 [extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}] chrome.jar:
 % override chrome://browser/skin/feeds/audioFeedIcon.png                   chrome://browser/skin/feeds/feedIcon.png
diff --git a/browser/themes/shared/incontentprefs/preferences.inc.css b/browser/themes/shared/incontentprefs/preferences.inc.css
index 577baa6ed..0e62660de 100644
--- a/browser/themes/shared/incontentprefs/preferences.inc.css
+++ b/browser/themes/shared/incontentprefs/preferences.inc.css
@@ -173,6 +173,11 @@ treecol {
   margin-inline-start: 0;
 }
 
+#browserHomePage:-moz-locale-dir(rtl) input {
+  unicode-bidi: plaintext;
+  direction: rtl;
+}
+
 /* Content pane */
 #playDRMContentLink {
   /* Line up with the buttons in the other grid bits: */
diff --git a/browser/themes/windows/jar.mn b/browser/themes/windows/jar.mn
index 10abfd001..410148645 100644
--- a/browser/themes/windows/jar.mn
+++ b/browser/themes/windows/jar.mn
@@ -169,9 +169,6 @@ browser.jar:
   skin/classic/browser/syncProgress-toolbar-inverted@2x.png
   skin/classic/browser/syncProgress-toolbar-win7.png
   skin/classic/browser/syncProgress-toolbar-win7@2x.png
-#ifdef E10S_TESTING_ONLY
-  skin/classic/browser/e10s-64@2x.png (../shared/e10s-64@2x.png)
-#endif
 
 [extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}] chrome.jar:
 % override chrome://browser/skin/page-livemarks.png                   chrome://browser/skin/feeds/feedIcon16.png