Revert "Remove the Social API"

author: Moonchild <mcwerewolf@gmail.com> 2018-05-25 20:45:48 +0000
committer: GitHub <noreply@github.com> 2018-05-25 20:45:48 +0000
commit: 72bab89cf6c77c9ee95a977c306e6ce317b84835 (patch)
tree: ca3fcaa2a72700b85221b2fe75bb7d46d5d424ce /browser
parent: d5459982f0d1bab08b751dc140c4cbe047032617 (diff)
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44 files changed, 2830 insertions, 16 deletions
diff --git a/browser/app/profile/firefox.js b/browser/app/profile/firefox.js
index ede62fd5e..e432c511d 100644
--- a/browser/app/profile/firefox.js
+++ b/browser/app/profile/firefox.js
@@ -1118,6 +1118,13 @@ pref("pdfjs.previousHandler.alwaysAskBeforeHandling", false);
 // (This is intentionally on the high side; see bug 746055.)
 pref("image.mem.max_decoded_image_kb", 256000);
 
+pref("social.sidebar.unload_timeout_ms", 10000);
+
+// Activation from inside of share panel is possible if activationPanelEnabled
+// is true. Pref'd off for release while usage testing is done through beta.
+pref("social.share.activationPanelEnabled", true);
+pref("social.shareDirectory", "https://activations.cdn.mozilla.net/sharePanel.html");
+
 // Block insecure active content on https pages
 pref("security.mixed_content.block_active_content", true);
 
diff --git a/browser/base/content/aboutProviderDirectory.xhtml b/browser/base/content/aboutProviderDirectory.xhtml
new file mode 100644
index 000000000..596ede4b3
--- /dev/null
+++ b/browser/base/content/aboutProviderDirectory.xhtml
@@ -0,0 +1,60 @@
+<?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 % brandDTD SYSTEM "chrome://branding/locale/brand.dtd" >
+  %brandDTD;
+  <!ENTITY % browserDTD SYSTEM "chrome://browser/locale/browser.dtd">
+  %browserDTD;
+]>
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <title>&social.directory.label;</title>
+    <link rel="stylesheet" type="text/css" media="all"
+          href="chrome://browser/skin/aboutProviderDirectory.css"/>
+  </head>
+
+  <body>
+    <div id="activation-link" hidden="true">
+      <div id="message-box">
+        <p>&social.directory.text;</p>
+      </div>
+      <div id="button-box">
+        <button onclick="openDirectory()">&social.directory.button;</button>
+      </div>
+    </div>
+    <div id="activation" hidden="true">
+      <p>&social.directory.introText;</p>
+      <div><iframe id="activation-frame"/></div>
+      <p><a class="link" onclick="openDirectory()">&social.directory.viewmore.text;</a></p>
+    </div>
+  </body>
+
+  <script type="text/javascript;version=1.8"><![CDATA[
+    const Cu = Components.utils;
+
+    Cu.import("resource://gre/modules/Services.jsm");
+
+    function openDirectory() {
+      let url = Services.prefs.getCharPref("social.directories").split(',')[0];
+      window.open(url);
+      window.close();
+    }
+
+    if (Services.prefs.getBoolPref("social.share.activationPanelEnabled")) {
+      let url = Services.prefs.getCharPref("social.shareDirectory");
+      document.getElementById("activation-frame").setAttribute("src", url);
+      document.getElementById("activation").removeAttribute("hidden");
+    } else {
+      document.getElementById("activation-link").removeAttribute("hidden");
+    }
+  ]]></script>
+</html>
diff --git a/browser/base/content/aboutSocialError.xhtml b/browser/base/content/aboutSocialError.xhtml
new file mode 100644
index 000000000..94a4e3dbd
--- /dev/null
+++ b/browser/base/content/aboutSocialError.xhtml
@@ -0,0 +1,111 @@
+<?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;
+]>
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <title>&loadError.label;</title>
+    <link rel="stylesheet" href="chrome://browser/skin/aboutNetError.css" type="text/css" media="all" />
+    <link rel="stylesheet" type="text/css" media="all" href="chrome://browser/skin/aboutSocialError.css"/>
+    <link rel="icon" type="image/png" id="favicon" href="chrome://global/skin/icons/warning-16.png"/>
+  </head>
+
+  <body>
+    <div id="errorPageContainer">
+
+      <!-- Error Title -->
+      <div id="errorTitle">
+        <p id="errorShortDescText" >foo</p>
+      </div>
+
+    <div id="button-box">
+      <button id="btnTryAgain" onclick="tryAgainButton()"/>
+    </div>
+    </div>
+  </body>
+
+  <script type="text/javascript;version=1.8"><![CDATA[
+    const Cu = Components.utils;
+
+    Cu.import("resource://gre/modules/Services.jsm");
+    Cu.import("resource:///modules/Social.jsm");
+
+    let config = {
+      tryAgainCallback: reloadProvider
+    }
+
+    function parseQueryString() {
+      let searchParams = new URLSearchParams(document.documentURI.split("?")[1]);
+      let mode = searchParams.get("mode");
+      config.origin = searchParams.get("origin");
+      let encodedURL = searchParams.get("url");
+      let url = decodeURIComponent(encodedURL);
+      // directory does not have origin set, in that case use the url origin for
+      // the error message.
+      if (!config.origin) {
+        let URI = Services.io.newURI(url, null, null);
+        config.origin =
+          Services.scriptSecurityManager.createCodebasePrincipal(URI, {}).origin;
+      }
+
+      switch (mode) {
+        case "compactInfo":
+          document.getElementById("btnTryAgain").style.display = 'none';
+          break;
+        case "tryAgainOnly":
+          //intentional fall-through
+        case "tryAgain":
+          config.tryAgainCallback = loadQueryURL;
+          config.queryURL = url;
+          break;
+        default:
+          break;
+      }
+    }
+
+    function setUpStrings() {
+      let brandBundle = Services.strings.createBundle("chrome://branding/locale/brand.properties");
+      let browserBundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
+
+      let productName = brandBundle.GetStringFromName("brandShortName");
+      let provider = Social._getProviderFromOrigin(config.origin);
+      let providerName = provider ? provider.name : config.origin;
+
+      // Sets up the error message
+      let msg = browserBundle.formatStringFromName("social.error.message", [productName, providerName], 2);
+      document.getElementById("errorShortDescText").textContent = msg;
+
+      // Sets up the buttons' labels and accesskeys
+      let btnTryAgain = document.getElementById("btnTryAgain");
+      btnTryAgain.textContent = browserBundle.GetStringFromName("social.error.tryAgain.label");
+      btnTryAgain.accessKey = browserBundle.GetStringFromName("social.error.tryAgain.accesskey");
+    }
+
+    function tryAgainButton() {
+      config.tryAgainCallback();
+    }
+
+    function loadQueryURL() {
+      window.location.href = config.queryURL;
+    }
+
+    function reloadProvider() {
+      let provider = Social._getProviderFromOrigin(config.origin);
+      provider.reload();
+    }
+
+    parseQueryString();
+    setUpStrings();
+  ]]></script>
+</html>
diff --git a/browser/base/content/browser-context.inc b/browser/base/content/browser-context.inc
index 9fa90b11c..3061cccdd 100644
--- a/browser/base/content/browser-context.inc
+++ b/browser/base/content/browser-context.inc
@@ -85,6 +85,10 @@
                 label="&bookmarkThisLinkCmd.label;"
                 accesskey="&bookmarkThisLinkCmd.accesskey;"
                 oncommand="gContextMenu.bookmarkLink();"/>
+      <menuitem id="context-sharelink"
+                label="&shareLink.label;"
+                accesskey="&shareLink.accesskey;"
+                oncommand="gContextMenu.shareLink();"/>
       <menuitem id="context-savelink"
                 label="&saveLinkCmd.label;"
                 accesskey="&saveLinkCmd.accesskey;"
@@ -208,6 +212,10 @@
                 label="&saveImageCmd.label;"
                 accesskey="&saveImageCmd.accesskey;"
                 oncommand="gContextMenu.saveMedia();"/>
+      <menuitem id="context-shareimage"
+                label="&shareImage.label;"
+                accesskey="&shareImage.accesskey;"
+                oncommand="gContextMenu.shareImage();"/>
       <menuitem id="context-sendimage"
                 label="&emailImageCmd.label;"
                 accesskey="&emailImageCmd.accesskey;"
@@ -229,6 +237,10 @@
                 label="&saveVideoCmd.label;"
                 accesskey="&saveVideoCmd.accesskey;"
                 oncommand="gContextMenu.saveMedia();"/>
+      <menuitem id="context-sharevideo"
+                label="&shareVideo.label;"
+                accesskey="&shareVideo.accesskey;"
+                oncommand="gContextMenu.shareVideo();"/>
       <menuitem id="context-saveaudio"
                 label="&saveAudioCmd.label;"
                 accesskey="&saveAudioCmd.accesskey;"
@@ -259,6 +271,10 @@
                 accesskey="&hidePluginCmd.accesskey;"
                 oncommand="gContextMenu.hidePlugin();"/>
       <menuseparator id="context-sep-ctp"/>
+      <menuitem id="context-sharepage"
+                label="&sharePageCmd.label;"
+                accesskey="&sharePageCmd.accesskey;"
+                oncommand="SocialShare.sharePage();"/>
       <menuitem id="context-savepage"
                 label="&savePageCmd.label;"
                 accesskey="&savePageCmd.accesskey2;"
@@ -318,6 +334,10 @@
         <menupopup id="context-sendlinktodevice-popup"
                    onpopupshowing="gFxAccounts.populateSendTabToDevicesMenu(event.target, gContextMenu.linkURL, gContextMenu.linkTextStr);"/>
       </menu>
+      <menuitem id="context-shareselect"
+                label="&shareSelect.label;"
+                accesskey="&shareSelect.accesskey;"
+                oncommand="gContextMenu.shareSelect();"/>
       <menuseparator id="frame-sep"/>
       <menu id="frame" label="&thisFrameMenu.label;" accesskey="&thisFrameMenu.accesskey;">
         <menupopup>
diff --git a/browser/base/content/browser-sets.inc b/browser/base/content/browser-sets.inc
index 6ea057d93..d0c3d11cd 100644
--- a/browser/base/content/browser-sets.inc
+++ b/browser/base/content/browser-sets.inc
@@ -105,6 +105,8 @@
       oncommand="OpenBrowserWindow({private: true});" reserved="true"/>
     <command id="History:UndoCloseTab" oncommand="undoCloseTab();"/>
     <command id="History:UndoCloseWindow" oncommand="undoCloseWindow();"/>
+    <command id="Social:SharePage" oncommand="SocialShare.sharePage();"/>
+    <command id="Social:Addons" oncommand="BrowserOpenAddonsMgr('addons://list/service');"/>
   </commandset>
 
   <commandset id="placesCommands">
@@ -115,6 +117,7 @@
   </commandset>
 
   <broadcasterset id="mainBroadcasterSet">
+    <broadcaster id="Social:PageShareable" disabled="true"/>
     <broadcaster id="viewBookmarksSidebar" autoCheck="false" label="&bookmarksButton.label;"
                  type="checkbox" group="sidebar" sidebarurl="chrome://browser/content/bookmarks/bookmarksPanel.xul"
                  oncommand="SidebarUI.toggle('viewBookmarksSidebar');"/>
diff --git a/browser/base/content/browser-social.js b/browser/base/content/browser-social.js
new file mode 100644
index 000000000..b470efd3d
--- /dev/null
+++ b/browser/base/content/browser-social.js
@@ -0,0 +1,503 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// the "exported" symbols
+var SocialUI,
+    SocialShare,
+    SocialActivationListener;
+
+(function() {
+
+XPCOMUtils.defineLazyGetter(this, "OpenGraphBuilder", function() {
+  let tmp = {};
+  Cu.import("resource:///modules/Social.jsm", tmp);
+  return tmp.OpenGraphBuilder;
+});
+
+XPCOMUtils.defineLazyGetter(this, "DynamicResizeWatcher", function() {
+  let tmp = {};
+  Cu.import("resource:///modules/Social.jsm", tmp);
+  return tmp.DynamicResizeWatcher;
+});
+
+SocialUI = {
+  _initialized: false,
+
+  // Called on delayed startup to initialize the UI
+  init: function SocialUI_init() {
+    if (this._initialized) {
+      return;
+    }
+    let mm = window.getGroupMessageManager("social");
+    mm.loadFrameScript("chrome://browser/content/content.js", true);
+    mm.loadFrameScript("chrome://browser/content/social-content.js", true);
+
+    Services.obs.addObserver(this, "social:providers-changed", false);
+
+    CustomizableUI.addListener(this);
+    SocialActivationListener.init();
+
+    Social.init().then((update) => {
+      if (update)
+        this._providersChanged();
+    });
+
+    this._initialized = true;
+  },
+
+  // Called on window unload
+  uninit: function SocialUI_uninit() {
+    if (!this._initialized) {
+      return;
+    }
+    Services.obs.removeObserver(this, "social:providers-changed");
+
+    CustomizableUI.removeListener(this);
+    SocialActivationListener.uninit();
+
+    this._initialized = false;
+  },
+
+  observe: function SocialUI_observe(subject, topic, data) {
+    switch (topic) {
+      case "social:providers-changed":
+        this._providersChanged();
+        break;
+    }
+  },
+
+  _providersChanged: function() {
+    SocialShare.populateProviderMenu();
+  },
+
+  showLearnMore: function() {
+    let url = Services.urlFormatter.formatURLPref("app.support.baseURL") + "social-api";
+    openUILinkIn(url, "tab");
+  },
+
+  closeSocialPanelForLinkTraversal: function (target, linkNode) {
+    // No need to close the panel if this traversal was not retargeted
+    if (target == "" || target == "_self")
+      return;
+
+    // Check to see whether this link traversal was in a social panel
+    let win = linkNode.ownerGlobal;
+    let container = win.QueryInterface(Ci.nsIInterfaceRequestor)
+                                  .getInterface(Ci.nsIWebNavigation)
+                                  .QueryInterface(Ci.nsIDocShell)
+                                  .chromeEventHandler;
+    let containerParent = container.parentNode;
+    if (containerParent.classList.contains("social-panel") &&
+        containerParent instanceof Ci.nsIDOMXULPopupElement) {
+      // allow the link traversal to finish before closing the panel
+      setTimeout(() => {
+        containerParent.hidePopup();
+      }, 0);
+    }
+  },
+
+  get _chromeless() {
+    // Is this a popup window that doesn't want chrome shown?
+    let docElem = document.documentElement;
+    // extrachrome is not restored during session restore, so we need
+    // to check for the toolbar as well.
+    let chromeless = docElem.getAttribute("chromehidden").includes("extrachrome") ||
+                     docElem.getAttribute('chromehidden').includes("toolbar");
+    // This property is "fixed" for a window, so avoid doing the check above
+    // multiple times...
+    delete this._chromeless;
+    this._chromeless = chromeless;
+    return chromeless;
+  },
+
+  get enabled() {
+    // Returns whether social is enabled *for this window*.
+    if (this._chromeless)
+      return false;
+    return Social.providers.length > 0;
+  },
+
+  canSharePage: function(aURI) {
+    return (aURI && (aURI.schemeIs('http') || aURI.schemeIs('https')));
+  },
+
+  onCustomizeEnd: function(aWindow) {
+    if (aWindow != window)
+      return;
+    // customization mode gets buttons out of sync with command updating, fix
+    // the disabled state
+    let canShare = this.canSharePage(gBrowser.currentURI);
+    let shareButton = SocialShare.shareButton;
+    if (shareButton) {
+      if (canShare) {
+        shareButton.removeAttribute("disabled")
+      } else {
+        shareButton.setAttribute("disabled", "true")
+      }
+    }
+  },
+
+  // called on tab/urlbar/location changes and after customization. Update
+  // anything that is tab specific.
+  updateState: function() {
+    goSetCommandEnabled("Social:PageShareable", this.canSharePage(gBrowser.currentURI));
+  }
+}
+
+// message manager handlers
+SocialActivationListener = {
+  init: function() {
+    messageManager.addMessageListener("Social:Activation", this);
+  },
+  uninit: function() {
+    messageManager.removeMessageListener("Social:Activation", this);
+  },
+  receiveMessage: function(aMessage) {
+    let data = aMessage.json;
+    let browser = aMessage.target;
+    data.window = window;
+    // if the source if the message is the share panel, we do a one-click
+    // installation. The source of activations is controlled by the
+    // social.directories preference
+    let options;
+    if (browser == SocialShare.iframe && Services.prefs.getBoolPref("social.share.activationPanelEnabled")) {
+      options = { bypassContentCheck: true, bypassInstallPanel: true };
+    }
+
+    Social.installProvider(data, function(manifest) {
+      Social.activateFromOrigin(manifest.origin, function(provider) {
+        if (provider.shareURL) {
+          // Ensure that the share button is somewhere usable.
+          // SocialShare.shareButton may return null if it is in the menu-panel
+          // and has never been visible, so we check the widget directly. If
+          // there is no area for the widget we move it into the toolbar.
+          let widget = CustomizableUI.getWidget("social-share-button");
+          // If the panel is already open, we can be sure that the provider can
+          // already be accessed, possibly anchored to another toolbar button.
+          // In that case we don't move the widget.
+          if (!widget.areaType && SocialShare.panel.state != "open") {
+            CustomizableUI.addWidgetToArea("social-share-button", CustomizableUI.AREA_NAVBAR);
+            // Ensure correct state.
+            SocialUI.onCustomizeEnd(window);
+          }
+
+          // make this new provider the selected provider. If the panel hasn't
+          // been opened, we need to make the frame first.
+          SocialShare._createFrame();
+          SocialShare.iframe.setAttribute('src', 'data:text/plain;charset=utf8,');
+          SocialShare.iframe.setAttribute('origin', provider.origin);
+          // get the right button selected
+          SocialShare.populateProviderMenu();
+          if (SocialShare.panel.state == "open") {
+            SocialShare.sharePage(provider.origin);
+          }
+        }
+        if (provider.postActivationURL) {
+          // if activated from an open share panel, we load the landing page in
+          // a background tab
+          gBrowser.loadOneTab(provider.postActivationURL, {inBackground: SocialShare.panel.state == "open"});
+        }
+      });
+    }, options);
+  }
+}
+
+SocialShare = {
+  get _dynamicResizer() {
+    delete this._dynamicResizer;
+    this._dynamicResizer = new DynamicResizeWatcher();
+    return this._dynamicResizer;
+  },
+
+  // Share panel may be attached to the overflow or menu button depending on
+  // customization, we need to manage open state of the anchor.
+  get anchor() {
+    let widget = CustomizableUI.getWidget("social-share-button");
+    return widget.forWindow(window).anchor;
+  },
+  // Holds the anchor node in use whilst the panel is open, because it may vary.
+  _currentAnchor: null,
+
+  get panel() {
+    return document.getElementById("social-share-panel");
+  },
+
+  get iframe() {
+    // panel.firstChild is our toolbar hbox, panel.lastChild is the iframe
+    // container hbox used for an interstitial "loading" graphic
+    return this.panel.lastChild.firstChild;
+  },
+
+  uninit: function () {
+    if (this.iframe) {
+      let mm = this.messageManager;
+      mm.removeMessageListener("PageVisibility:Show", this);
+      mm.removeMessageListener("PageVisibility:Hide", this);
+      mm.removeMessageListener("Social:DOMWindowClose", this);
+      this.iframe.removeEventListener("load", this);
+      this.iframe.remove();
+    }
+  },
+
+  _createFrame: function() {
+    let panel = this.panel;
+    if (this.iframe)
+      return;
+    this.panel.hidden = false;
+    // create and initialize the panel for this window
+    let iframe = document.createElement("browser");
+    iframe.setAttribute("type", "content");
+    iframe.setAttribute("class", "social-share-frame");
+    iframe.setAttribute("context", "contentAreaContextMenu");
+    iframe.setAttribute("tooltip", "aHTMLTooltip");
+    iframe.setAttribute("disableglobalhistory", "true");
+    iframe.setAttribute("flex", "1");
+    iframe.setAttribute("message", "true");
+    iframe.setAttribute("messagemanagergroup", "social");
+    panel.lastChild.appendChild(iframe);
+    let mm = this.messageManager;
+    mm.addMessageListener("PageVisibility:Show", this);
+    mm.addMessageListener("PageVisibility:Hide", this);
+    mm.sendAsyncMessage("Social:SetErrorURL",
+                        { template: "about:socialerror?mode=compactInfo&origin=%{origin}&url=%{url}" });
+    iframe.addEventListener("load", this, true);
+    mm.addMessageListener("Social:DOMWindowClose", this);
+
+    this.populateProviderMenu();
+  },
+
+  get messageManager() {
+    // The xbl bindings for the iframe may not exist yet, so we can't
+    // access iframe.messageManager directly - but can get at it with this dance.
+    return this.iframe.QueryInterface(Components.interfaces.nsIFrameLoaderOwner).frameLoader.messageManager;
+  },
+
+  receiveMessage: function(aMessage) {
+    let iframe = this.iframe;
+    switch(aMessage.name) {
+      case "PageVisibility:Show":
+        SocialShare._dynamicResizer.start(iframe.parentNode, iframe);
+        break;
+      case "PageVisibility:Hide":
+        SocialShare._dynamicResizer.stop();
+        break;
+      case "Social:DOMWindowClose":
+        this.panel.hidePopup();
+        break;
+    }
+  },
+
+  handleEvent: function(event) {
+    switch (event.type) {
+      case "load": {
+        this.iframe.parentNode.removeAttribute("loading");
+        if (this.currentShare)
+          SocialShare.messageManager.sendAsyncMessage("Social:OpenGraphData", this.currentShare);
+      }
+    }
+  },
+
+  getSelectedProvider: function() {
+    let provider;
+    let lastProviderOrigin = this.iframe && this.iframe.getAttribute("origin");
+    if (lastProviderOrigin) {
+      provider = Social._getProviderFromOrigin(lastProviderOrigin);
+    }
+    return provider;
+  },
+
+  createTooltip: function(event) {
+    let tt = event.target;
+    let provider = Social._getProviderFromOrigin(tt.triggerNode.getAttribute("origin"));
+    tt.firstChild.setAttribute("value", provider.name);
+    tt.lastChild.setAttribute("value", provider.origin);
+  },
+
+  populateProviderMenu: function() {
+    if (!this.iframe)
+      return;
+    let providers = Social.providers.filter(p => p.shareURL);
+    let hbox = document.getElementById("social-share-provider-buttons");
+    // remove everything before the add-share-provider button (which should also
+    // be lastChild if any share providers were added)
+    let addButton = document.getElementById("add-share-provider");
+    while (hbox.lastChild != addButton) {
+      hbox.removeChild(hbox.lastChild);
+    }
+    let selectedProvider = this.getSelectedProvider();
+    for (let provider of providers) {
+      let button = document.createElement("toolbarbutton");
+      button.setAttribute("class", "toolbarbutton-1 share-provider-button");
+      button.setAttribute("type", "radio");
+      button.setAttribute("group", "share-providers");
+      button.setAttribute("image", provider.iconURL);
+      button.setAttribute("tooltip", "share-button-tooltip");
+      button.setAttribute("origin", provider.origin);
+      button.setAttribute("label", provider.name);
+      button.setAttribute("oncommand", "SocialShare.sharePage(this.getAttribute('origin'));");
+      if (provider == selectedProvider) {
+        this.defaultButton = button;
+      }
+      hbox.appendChild(button);
+    }
+    if (!this.defaultButton) {
+      this.defaultButton = addButton;
+    }
+    this.defaultButton.setAttribute("checked", "true");
+  },
+
+  get shareButton() {
+    // web-panels (bookmark/sidebar) don't include customizableui, so
+    // nsContextMenu fails when accessing shareButton, breaking
+    // browser_bug409481.js.
+    if (!window.CustomizableUI)
+      return null;
+    let widget = CustomizableUI.getWidget("social-share-button");
+    if (!widget || !widget.areaType)
+      return null;
+    return widget.forWindow(window).node;
+  },
+
+  _onclick: function() {
+    Services.telemetry.getHistogramById("SOCIAL_PANEL_CLICKS").add(0);
+  },
+
+  onShowing: function() {
+    (this._currentAnchor || this.anchor).setAttribute("open", "true");
+    this.iframe.addEventListener("click", this._onclick, true);
+  },
+
+  onHidden: function() {
+    (this._currentAnchor || this.anchor).removeAttribute("open");
+    this._currentAnchor = null;
+    this.iframe.docShellIsActive = false;
+    this.iframe.removeEventListener("click", this._onclick, true);
+    this.iframe.setAttribute("src", "data:text/plain;charset=utf8,");
+    // make sure that the frame is unloaded after it is hidden
+    this.messageManager.sendAsyncMessage("Social:ClearFrame");
+    this.currentShare = null;
+    // share panel use is over, purge any history
+    this.iframe.purgeSessionHistory();
+  },
+
+  sharePage: function(providerOrigin, graphData, target, anchor) {
+    // if providerOrigin is undefined, we use the last-used provider, or the
+    // current/default provider.  The provider selection in the share panel
+    // will call sharePage with an origin for us to switch to.
+    this._createFrame();
+    let iframe = this.iframe;
+
+    // graphData is an optional param that either defines the full set of data
+    // to be shared, or partial data about the current page. It is set by a call
+    // in mozSocial API, or via nsContentMenu calls. If it is present, it MUST
+    // define at least url. If it is undefined, we're sharing the current url in
+    // the browser tab.
+    let pageData = graphData ? graphData : this.currentShare;
+    let sharedURI = pageData ? Services.io.newURI(pageData.url, null, null) :
+                                gBrowser.currentURI;
+    if (!SocialUI.canSharePage(sharedURI))
+      return;
+
+    let browserMM = gBrowser.selectedBrowser.messageManager;
+
+    // the point of this action type is that we can use existing share
+    // endpoints (e.g. oexchange) that do not support additional
+    // socialapi functionality.  One tweak is that we shoot an event
+    // containing the open graph data.
+    let _dataFn;
+    if (!pageData || sharedURI == gBrowser.currentURI) {
+      browserMM.addMessageListener("PageMetadata:PageDataResult", _dataFn = (msg) => {
+        browserMM.removeMessageListener("PageMetadata:PageDataResult", _dataFn);
+        let pageData = msg.json;
+        if (graphData) {
+          // overwrite data retreived from page with data given to us as a param
+          for (let p in graphData) {
+            pageData[p] = graphData[p];
+          }
+        }
+        this.sharePage(providerOrigin, pageData, target, anchor);
+      });
+      browserMM.sendAsyncMessage("PageMetadata:GetPageData", null, { target });
+      return;
+    }
+    // if this is a share of a selected item, get any microformats
+    if (!pageData.microformats && target) {
+      browserMM.addMessageListener("PageMetadata:MicroformatsResult", _dataFn = (msg) => {
+        browserMM.removeMessageListener("PageMetadata:MicroformatsResult", _dataFn);
+        pageData.microformats = msg.data;
+        this.sharePage(providerOrigin, pageData, target, anchor);
+      });
+      browserMM.sendAsyncMessage("PageMetadata:GetMicroformats", null, { target });
+      return;
+    }
+    this.currentShare = pageData;
+
+    let provider;
+    if (providerOrigin)
+      provider = Social._getProviderFromOrigin(providerOrigin);
+    else
+      provider = this.getSelectedProvider();
+    if (!provider || !provider.shareURL) {
+      this.showDirectory(anchor);
+      return;
+    }
+    // check the menu button
+    let hbox = document.getElementById("social-share-provider-buttons");
+    let btn = hbox.querySelector("[origin='" + provider.origin + "']");
+    if (btn)
+      btn.checked = true;
+
+    let shareEndpoint = OpenGraphBuilder.generateEndpointURL(provider.shareURL, pageData);
+
+    this._dynamicResizer.stop();
+    let size = provider.getPageSize("share");
+    if (size) {
+      // let the css on the share panel define width, but height
+      // calculations dont work on all sites, so we allow that to be
+      // defined.
+      delete size.width;
+    }
+
+    // if we've already loaded this provider/page share endpoint, we don't want
+    // to add another load event listener.
+    let endpointMatch = shareEndpoint == iframe.getAttribute("src");
+    if (endpointMatch) {
+      this._dynamicResizer.start(iframe.parentNode, iframe, size);
+      iframe.docShellIsActive = true;
+      SocialShare.messageManager.sendAsyncMessage("Social:OpenGraphData", this.currentShare);
+    } else {
+      iframe.parentNode.setAttribute("loading", "true");
+    }
+    // if the user switched between share providers we do not want that history
+    // available.
+    iframe.purgeSessionHistory();
+
+    // always ensure that origin belongs to the endpoint
+    let uri = Services.io.newURI(shareEndpoint, null, null);
+    iframe.setAttribute("origin", provider.origin);
+    iframe.setAttribute("src", shareEndpoint);
+    this._openPanel(anchor);
+  },
+
+  showDirectory: function(anchor) {
+    this._createFrame();
+    let iframe = this.iframe;
+    if (iframe.getAttribute("src") == "about:providerdirectory")
+      return;
+    iframe.removeAttribute("origin");
+    iframe.parentNode.setAttribute("loading", "true");
+
+    iframe.setAttribute("src", "about:providerdirectory");
+    this._openPanel(anchor);
+  },
+
+  _openPanel: function(anchor) {
+    this._currentAnchor = anchor || this.anchor;
+    anchor = document.getAnonymousElementByAttribute(this._currentAnchor, "class", "toolbarbutton-icon");
+    this.panel.openPopup(anchor, "bottomcenter topright", 0, 0, false, false);
+    Services.telemetry.getHistogramById("SOCIAL_TOOLBAR_BUTTONS").add(0);
+  }
+};
+
+})();
diff --git a/browser/base/content/browser.css b/browser/base/content/browser.css
index ac5bf9e9b..f03f21c3f 100644
--- a/browser/base/content/browser.css
+++ b/browser/base/content/browser.css
@@ -933,6 +933,11 @@ html|*#gcli-output-frame,
   transition: none;
 }
 
+panelview > .social-panel-frame {
+  width: auto;
+  height: auto;
+}
+
 /* Translation */
 notification[value="translation"] {
   -moz-binding: url("chrome://browser/content/translation-infobar.xml#translationbar");
diff --git a/browser/base/content/browser.js b/browser/base/content/browser.js
index 4b8ec864b..8679bca83 100755
--- a/browser/base/content/browser.js
+++ b/browser/base/content/browser.js
@@ -44,6 +44,7 @@ Cu.import("resource://gre/modules/NotificationDB.jsm");
   ["ShortcutUtils", "resource://gre/modules/ShortcutUtils.jsm"],
   ["SimpleServiceDiscovery", "resource://gre/modules/SimpleServiceDiscovery.jsm"],
   ["SitePermissions", "resource:///modules/SitePermissions.jsm"],
+  ["Social", "resource:///modules/Social.jsm"],
   ["TabCrashHandler", "resource:///modules/ContentCrashHandlers.jsm"],
   ["Task", "resource://gre/modules/Task.jsm"],
   ["TelemetryStopwatch", "resource://gre/modules/TelemetryStopwatch.jsm"],
@@ -1404,6 +1405,8 @@ var gBrowserInit = {
       // Enable the Restore Last Session command if needed
       RestoreLastSessionObserver.init();
 
+      SocialUI.init();
+
       // Start monitoring slow add-ons
       AddonWatcher.init();
 
@@ -1534,6 +1537,7 @@ var gBrowserInit = {
 
       gPrefService.removeObserver(ctrlTab.prefName, ctrlTab);
       ctrlTab.uninit();
+      SocialUI.uninit();
       gBrowserThumbnails.uninit();
       FullZoom.destroy();
 
@@ -4293,7 +4297,9 @@ var XULBrowserWindow = {
 
   // Called before links are navigated to to allow us to retarget them if needed.
   onBeforeLinkTraversal: function(originalTarget, linkURI, linkNode, isAppTab) {
-    return BrowserUtils.onBeforeLinkTraversal(originalTarget, linkURI, linkNode, isAppTab);
+    let target = BrowserUtils.onBeforeLinkTraversal(originalTarget, linkURI, linkNode, isAppTab);
+    SocialUI.closeSocialPanelForLinkTraversal(target, linkNode);
+    return target;
   },
 
   // Check whether this URI should load in the current process
@@ -4474,6 +4480,8 @@ var XULBrowserWindow = {
 
       gIdentityHandler.onLocationChange();
 
+      SocialUI.updateState();
+
       UITour.onLocationChange(location);
 
       gTabletModePageCounter.inc();
diff --git a/browser/base/content/browser.xul b/browser/base/content/browser.xul
index 4f1b48349..485471ee3 100644
--- a/browser/base/content/browser.xul
+++ b/browser/base/content/browser.xul
@@ -268,6 +268,27 @@
       <box id="UITourHighlight"></box>
     </panel>
 
+    <panel id="social-share-panel"
+           class="social-panel"
+           type="arrow"
+           orient="vertical"
+           onpopupshowing="SocialShare.onShowing()"
+           onpopuphidden="SocialShare.onHidden()"
+           hidden="true">
+      <hbox class="social-share-toolbar">
+        <toolbarbutton id="manage-share-providers" class="share-provider-button"
+                       tooltiptext="&social.addons.label;"
+                       oncommand="BrowserOpenAddonsMgr('addons://list/service');
+                                  this.parentNode.parentNode.hidePopup();"/>
+        <arrowscrollbox id="social-share-provider-buttons" orient="horizontal" flex="1" pack="end">
+          <toolbarbutton id="add-share-provider" class="share-provider-button" type="radio"
+                         group="share-providers" tooltiptext="&findShareServices.label;"
+                         oncommand="SocialShare.showDirectory()"/>
+        </arrowscrollbox>
+      </hbox>
+      <hbox id="share-container" flex="1"/>
+    </panel>
+
     <menupopup id="toolbar-context-menu"
                onpopupshowing="onViewToolbarsPopupShowing(event, document.getElementById('viewToolbarsMenuSeparator'));">
       <menuitem oncommand="gCustomizeMode.addToPanel(document.popupNode)"
@@ -405,6 +426,11 @@
 #endif
     </tooltip>
 
+    <tooltip id="share-button-tooltip" onpopupshowing="SocialShare.createTooltip(event);">
+      <label class="tooltip-label"/>
+      <label class="tooltip-label"/>
+    </tooltip>
+
 #include popup-notifications.inc
 
 #include ../../components/customizableui/content/panelUI.inc.xul
diff --git a/browser/base/content/content.js b/browser/base/content/content.js
index 5758cb023..496e0d111 100644
--- a/browser/base/content/content.js
+++ b/browser/base/content/content.js
@@ -698,6 +698,37 @@ var PageMetadataMessenger = {
 }
 PageMetadataMessenger.init();
 
+addEventListener("ActivateSocialFeature", function (aEvent) {
+  let document = content.document;
+  let dwu = content.QueryInterface(Ci.nsIInterfaceRequestor)
+                   .getInterface(Ci.nsIDOMWindowUtils);
+  if (!dwu.isHandlingUserInput) {
+    Cu.reportError("attempt to activate provider without user input from " + document.nodePrincipal.origin);
+    return;
+  }
+
+  let node = aEvent.target;
+  let ownerDocument = node.ownerDocument;
+  let data = node.getAttribute("data-service");
+  if (data) {
+    try {
+      data = JSON.parse(data);
+    } catch (e) {
+      Cu.reportError("Social Service manifest parse error: " + e);
+      return;
+    }
+  } else {
+    Cu.reportError("Social Service manifest not available");
+    return;
+  }
+
+  sendAsyncMessage("Social:Activation", {
+    url: ownerDocument.location.href,
+    origin: ownerDocument.nodePrincipal.origin,
+    manifest: data
+  });
+}, true, true);
+
 addMessageListener("ContextMenu:SaveVideoFrameAsImage", (message) => {
   let video = message.objects.target;
   let canvas = content.document.createElementNS("http://www.w3.org/1999/xhtml", "canvas");
diff --git a/browser/base/content/nsContextMenu.js b/browser/base/content/nsContextMenu.js
index 097caf367..955184f64 100644
--- a/browser/base/content/nsContextMenu.js
+++ b/browser/base/content/nsContextMenu.js
@@ -174,15 +174,15 @@ nsContextMenu.prototype = {
   initNavigationItems: function CM_initNavigationItems() {
     var shouldShow = !(this.isContentSelected || this.onLink || this.onImage ||
                        this.onCanvas || this.onVideo || this.onAudio ||
-                       this.onTextInput);
+                       this.onTextInput || this.onSocial);
     this.showItem("context-navigation", shouldShow);
     this.showItem("context-sep-navigation", shouldShow);
 
     let stopped = XULBrowserWindow.stopCommand.getAttribute("disabled") == "true";
 
     let stopReloadItem = "";
-    if (shouldShow) {
-      stopReloadItem = (stopped) ? "reload" : "stop";
+    if (shouldShow || this.onSocial) {
+      stopReloadItem = (stopped || this.onSocial) ? "reload" : "stop";
     }
 
     this.showItem("context-reload", stopReloadItem == "reload");
@@ -249,7 +249,7 @@ nsContextMenu.prototype = {
                        this.onImage || this.onCanvas ||
                        this.onVideo || this.onAudio ||
                        this.onLink || this.onTextInput);
-    var showInspect = gPrefService.getBoolPref("devtools.inspector.enabled");
+    var showInspect = !this.onSocial && gPrefService.getBoolPref("devtools.inspector.enabled");
     this.showItem("context-viewsource", shouldShow);
     this.showItem("context-viewinfo", shouldShow);
     this.showItem("inspect-separator", showInspect);
@@ -306,11 +306,12 @@ nsContextMenu.prototype = {
     let bookmarkPage = document.getElementById("context-bookmarkpage");
     this.showItem(bookmarkPage,
                   !(this.isContentSelected || this.onTextInput || this.onLink ||
-                    this.onImage || this.onVideo || this.onAudio || this.onCanvas));
+                    this.onImage || this.onVideo || this.onAudio || this.onSocial ||
+                    this.onCanvas));
     bookmarkPage.setAttribute("tooltiptext", bookmarkPage.getAttribute("buttontooltiptext"));
 
-    this.showItem("context-bookmarklink", (this.onLink && !this.onMailtoLink) ||
-                                           this.onPlainTextLink);
+    this.showItem("context-bookmarklink", (this.onLink && !this.onMailtoLink &&
+                                           !this.onSocial) || this.onPlainTextLink);
     this.showItem("context-keywordfield",
                   this.onTextInput && this.onKeywordField);
     this.showItem("frame", this.inFrame);
@@ -348,6 +349,19 @@ nsContextMenu.prototype = {
                   this.onTextInput && !this.onNumeric && top.gBidiUI);
     this.showItem("context-bidi-page-direction-toggle",
                   !this.onTextInput && top.gBidiUI);
+
+    // SocialShare
+    let shareButton = SocialShare.shareButton;
+    let shareEnabled = shareButton && !shareButton.disabled && !this.onSocial;
+    let pageShare = shareEnabled && !(this.isContentSelected ||
+                            this.onTextInput || this.onLink || this.onImage ||
+                            this.onVideo || this.onAudio || this.onCanvas);
+    this.showItem("context-sharepage", pageShare);
+    this.showItem("context-shareselect", shareEnabled && this.isContentSelected);
+    this.showItem("context-sharelink", shareEnabled && (this.onLink || this.onPlainTextLink) && !this.onMailtoLink);
+    this.showItem("context-shareimage", shareEnabled && this.onImage);
+    this.showItem("context-sharevideo", shareEnabled && this.onVideo);
+    this.setItemAttr("context-sharevideo", "disabled", !this.mediaURL || this.mediaURL.startsWith("blob:"));
   },
 
   initSpellingItems: function() {
@@ -667,6 +681,7 @@ nsContextMenu.prototype = {
                                         .getInterface(Ci.nsIDOMWindowUtils)
                                         .outerWindowID;
     }
+    this.onSocial = !!this.browser.getAttribute("origin");
 
     // Check if we are in a synthetic document (stand alone image, video, etc.).
     this.inSyntheticDoc = ownerDoc.mozSyntheticDocument;
@@ -1711,6 +1726,22 @@ nsContextMenu.prototype = {
     mm.sendAsyncMessage("ContextMenu:BookmarkFrame", null, { target: this.target });
   },
 
+  shareLink: function CM_shareLink() {
+    SocialShare.sharePage(null, { url: this.linkURI.spec }, this.target);
+  },
+
+  shareImage: function CM_shareImage() {
+    SocialShare.sharePage(null, { url: this.imageURL, previews: [ this.mediaURL ] }, this.target);
+  },
+
+  shareVideo: function CM_shareVideo() {
+    SocialShare.sharePage(null, { url: this.mediaURL, source: this.mediaURL }, this.target);
+  },
+
+  shareSelect: function CM_shareSelect() {
+    SocialShare.sharePage(null, { url: this.browser.currentURI.spec, text: this.textSelected }, this.target);
+  },
+
   savePageAs: function CM_savePageAs() {
     saveBrowser(this.browser);
   },
@@ -1825,7 +1856,7 @@ nsContextMenu.prototype = {
   _getTelemetryPageContextInfo: function() {
     let rv = [];
     for (let k of ["isContentSelected", "onLink", "onImage", "onCanvas", "onVideo", "onAudio",
-                   "onTextInput"]) {
+                   "onTextInput", "onSocial"]) {
       if (this[k]) {
         rv.push(k.replace(/^(?:is|on)(.)/, (match, firstLetter) => firstLetter.toLowerCase()));
       }
diff --git a/browser/base/content/social-content.js b/browser/base/content/social-content.js
new file mode 100644
index 000000000..b5fa6a5c4
--- /dev/null
+++ b/browser/base/content/social-content.js
@@ -0,0 +1,172 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* This content script is intended for use by iframes in the share panel. */
+
+var {interfaces: Ci, utils: Cu} = Components;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+// social frames are always treated as app tabs
+docShell.isAppTab = true;
+
+addEventListener("DOMContentLoaded", function(event) {
+  if (event.target != content.document)
+    return;
+  // Some share panels (e.g. twitter and facebook) check content.opener, and if
+  // it doesn't exist they act like they are in a browser tab.  We want them to
+  // act like they are in a dialog (which is the typical case).
+  if (content && !content.opener) {
+    content.opener = content;
+  }
+  hookWindowClose();
+  disableDialogs();
+});
+
+addMessageListener("Social:OpenGraphData", (message) => {
+  let ev = new content.CustomEvent("OpenGraphData", { detail: JSON.stringify(message.data) });
+  content.dispatchEvent(ev);
+});
+
+addMessageListener("Social:ClearFrame", () => {
+  docShell.createAboutBlankContentViewer(null);
+});
+
+addEventListener("DOMWindowClose", (evt) => {
+  // preventDefault stops the default window.close() function being called,
+  // which doesn't actually close anything but causes things to get into
+  // a bad state (an internal 'closed' flag is set and debug builds start
+  // asserting as the window is used.).
+  // None of the windows we inject this API into are suitable for this
+  // default close behaviour, so even if we took no action above, we avoid
+  // the default close from doing anything.
+  evt.preventDefault();
+
+  // Tells the SocialShare class to close the panel
+  sendAsyncMessage("Social:DOMWindowClose");
+});
+
+function hookWindowClose() {
+  // Allow scripts to close the "window".  Because we are in a panel and not
+  // in a full dialog, the DOMWindowClose listener above will only receive the
+  // event if we do this.
+  let dwu = content.QueryInterface(Ci.nsIInterfaceRequestor)
+     .getInterface(Ci.nsIDOMWindowUtils);
+  dwu.allowScriptsToClose();
+}
+
+function disableDialogs() {
+  let windowUtils = content.QueryInterface(Ci.nsIInterfaceRequestor).
+                    getInterface(Ci.nsIDOMWindowUtils);
+  windowUtils.disableDialogs();
+}
+
+// Error handling class used to listen for network errors in the social frames
+// and replace them with a social-specific error page
+const SocialErrorListener = {
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIDOMEventListener,
+                                         Ci.nsIWebProgressListener,
+                                         Ci.nsISupportsWeakReference,
+                                         Ci.nsISupports]),
+
+  defaultTemplate: "about:socialerror?mode=tryAgainOnly&url=%{url}&origin=%{origin}",
+  urlTemplate: null,
+
+  init() {
+    addMessageListener("Social:SetErrorURL", this);
+    let webProgress = docShell.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
+                              .getInterface(Components.interfaces.nsIWebProgress);
+    webProgress.addProgressListener(this, Ci.nsIWebProgress.NOTIFY_STATE_REQUEST |
+                                          Ci.nsIWebProgress.NOTIFY_LOCATION);
+  },
+
+  receiveMessage(message) {
+    switch (message.name) {
+      case "Social:SetErrorURL":
+        // Either a url or null to reset to default template.
+        this.urlTemplate = message.data.template;
+        break;
+    }
+  },
+
+  setErrorPage() {
+    // if this is about:providerdirectory, use the directory iframe
+    let frame = docShell.chromeEventHandler;
+    let origin = frame.getAttribute("origin");
+    let src = frame.getAttribute("src");
+    if (src == "about:providerdirectory") {
+      frame = content.document.getElementById("activation-frame");
+      src = frame.getAttribute("src");
+    }
+
+    let url = this.urlTemplate || this.defaultTemplate;
+    url = url.replace("%{url}", encodeURIComponent(src));
+    url = url.replace("%{origin}", encodeURIComponent(origin));
+    if (frame != docShell.chromeEventHandler) {
+      // Unable to access frame.docShell here. This is our own frame and doesn't
+      // provide reload, so we'll just set the src.
+      frame.setAttribute("src", url);
+    } else {
+      let webNav = docShell.QueryInterface(Ci.nsIWebNavigation);
+      webNav.loadURI(url, null, null, null, null);
+    }
+    sendAsyncMessage("Social:ErrorPageNotify", {
+        origin: origin,
+        url: src
+    });
+  },
+
+  onStateChange(aWebProgress, aRequest, aState, aStatus) {
+    let failure = false;
+    if ((aState & Ci.nsIWebProgressListener.STATE_IS_REQUEST))
+      return;
+    if ((aState & Ci.nsIWebProgressListener.STATE_STOP)) {
+      if (aRequest instanceof Ci.nsIHttpChannel) {
+        try {
+          // Change the frame to an error page on 4xx (client errors)
+          // and 5xx (server errors).  responseStatus throws if it is not set.
+          failure = aRequest.responseStatus >= 400 &&
+                    aRequest.responseStatus < 600;
+        } catch (e) {
+          failure = aStatus != Components.results.NS_OK;
+        }
+      }
+    }
+
+    // Calling cancel() will raise some OnStateChange notifications by itself,
+    // so avoid doing that more than once
+    if (failure && aStatus != Components.results.NS_BINDING_ABORTED) {
+      // if tp is enabled and we get a failure, ignore failures (ie. STATE_STOP)
+      // on child resources since they *may* have been blocked. We don't have an
+      // easy way to know if a particular url is blocked by TP, only that
+      // something was.
+      if (docShell.hasTrackingContentBlocked) {
+        let frame = docShell.chromeEventHandler;
+        let src = frame.getAttribute("src");
+        if (aRequest && aRequest.name != src) {
+          Cu.reportError("SocialErrorListener ignoring blocked content error for " + aRequest.name);
+          return;
+        }
+      }
+
+      aRequest.cancel(Components.results.NS_BINDING_ABORTED);
+      this.setErrorPage();
+    }
+  },
+
+  onLocationChange(aWebProgress, aRequest, aLocation, aFlags) {
+    if (aRequest && aFlags & Ci.nsIWebProgressListener.LOCATION_CHANGE_ERROR_PAGE) {
+      aRequest.cancel(Components.results.NS_BINDING_ABORTED);
+      this.setErrorPage();
+    }
+  },
+
+  onProgressChange() {},
+  onStatusChange() {},
+  onSecurityChange() {},
+};
+
+SocialErrorListener.init();
diff --git a/browser/base/jar.mn b/browser/base/jar.mn
index 5ec92d79a..03854f75d 100644
--- a/browser/base/jar.mn
+++ b/browser/base/jar.mn
@@ -61,6 +61,8 @@ browser.jar:
 
         content/browser/aboutRobots-icon.png          (content/aboutRobots-icon.png)
         content/browser/aboutRobots-widget-left.png   (content/aboutRobots-widget-left.png)
+        content/browser/aboutSocialError.xhtml        (content/aboutSocialError.xhtml)
+        content/browser/aboutProviderDirectory.xhtml  (content/aboutProviderDirectory.xhtml)
         content/browser/aboutTabCrashed.css           (content/aboutTabCrashed.css)
         content/browser/aboutTabCrashed.js            (content/aboutTabCrashed.js)
         content/browser/aboutTabCrashed.xhtml         (content/aboutTabCrashed.xhtml)
@@ -86,6 +88,7 @@ browser.jar:
         content/browser/browser-safebrowsing.js       (content/browser-safebrowsing.js)
 #endif
         content/browser/browser-sidebar.js            (content/browser-sidebar.js)
+        content/browser/browser-social.js             (content/browser-social.js)
 *       content/browser/browser-syncui.js             (content/browser-syncui.js)
 *       content/browser/browser-tabPreviews.xml       (content/browser-tabPreviews.xml)
 #ifdef CAN_DRAW_IN_TITLEBAR
@@ -97,6 +100,7 @@ browser.jar:
         content/browser/browser-trackingprotection.js (content/browser-trackingprotection.js)
 *       content/browser/tab-content.js                (content/tab-content.js)
         content/browser/content.js                    (content/content.js)
+        content/browser/social-content.js             (content/social-content.js)
         content/browser/defaultthemes/1.footer.jpg    (content/defaultthemes/1.footer.jpg)
         content/browser/defaultthemes/1.header.jpg    (content/defaultthemes/1.header.jpg)
         content/browser/defaultthemes/1.icon.jpg      (content/defaultthemes/1.icon.jpg)
diff --git a/browser/components/about/AboutRedirector.cpp b/browser/components/about/AboutRedirector.cpp
index b77949ea7..5e8df6ab2 100644
--- a/browser/components/about/AboutRedirector.cpp
+++ b/browser/components/about/AboutRedirector.cpp
@@ -57,6 +57,16 @@ static RedirEntry kRedirMap[] = {
     nsIAboutModule::HIDE_FROM_ABOUTABOUT
   },
   {
+    "socialerror", "chrome://browser/content/aboutSocialError.xhtml",
+    nsIAboutModule::ALLOW_SCRIPT |
+    nsIAboutModule::HIDE_FROM_ABOUTABOUT
+  },
+  {
+    "providerdirectory", "chrome://browser/content/aboutProviderDirectory.xhtml",
+    nsIAboutModule::ALLOW_SCRIPT |
+    nsIAboutModule::HIDE_FROM_ABOUTABOUT
+  },
+  {
     "tabcrashed", "chrome://browser/content/aboutTabCrashed.xhtml",
     nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
     nsIAboutModule::ALLOW_SCRIPT |
diff --git a/browser/components/build/nsModule.cpp b/browser/components/build/nsModule.cpp
index 1baccd710..967da3ebc 100644
--- a/browser/components/build/nsModule.cpp
+++ b/browser/components/build/nsModule.cpp
@@ -90,6 +90,8 @@ static const mozilla::Module::ContractIDEntry kBrowserContracts[] = {
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "blocked", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
 #endif
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "certerror", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
+    { NS_ABOUT_MODULE_CONTRACTID_PREFIX "socialerror", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
+    { NS_ABOUT_MODULE_CONTRACTID_PREFIX "providerdirectory", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "tabcrashed", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "feeds", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
     { NS_ABOUT_MODULE_CONTRACTID_PREFIX "privatebrowsing", &kNS_BROWSER_ABOUT_REDIRECTOR_CID },
diff --git a/browser/components/customizableui/CustomizableWidgets.jsm b/browser/components/customizableui/CustomizableWidgets.jsm
index 3e00d385f..3e83b081c 100644
--- a/browser/components/customizableui/CustomizableWidgets.jsm
+++ b/browser/components/customizableui/CustomizableWidgets.jsm
@@ -557,6 +557,47 @@ const CustomizableWidgets = [
       fillSubviewFromMenuItems([...menu.children], sidebarItems);
     }
   }, {
+    id: "social-share-button",
+    // custom build our button so we can attach to the share command
+    type: "custom",
+    onBuild: function(aDocument) {
+      let node = aDocument.createElementNS(kNSXUL, "toolbarbutton");
+      node.setAttribute("id", this.id);
+      node.classList.add("toolbarbutton-1");
+      node.classList.add("chromeclass-toolbar-additional");
+      node.setAttribute("label", CustomizableUI.getLocalizedProperty(this, "label"));
+      node.setAttribute("tooltiptext", CustomizableUI.getLocalizedProperty(this, "tooltiptext"));
+      node.setAttribute("removable", "true");
+      node.setAttribute("observes", "Social:PageShareable");
+      node.setAttribute("command", "Social:SharePage");
+
+      let listener = {
+        onWidgetAdded: (aWidgetId) => {
+          if (aWidgetId != this.id)
+            return;
+
+          Services.obs.notifyObservers(null, "social:" + this.id + "-added", null);
+        },
+
+        onWidgetRemoved: aWidgetId => {
+          if (aWidgetId != this.id)
+            return;
+
+          Services.obs.notifyObservers(null, "social:" + this.id + "-removed", null);
+        },
+
+        onWidgetInstanceRemoved: (aWidgetId, aDoc) => {
+          if (aWidgetId != this.id || aDoc != aDocument)
+            return;
+
+          CustomizableUI.removeListener(listener);
+        }
+      };
+      CustomizableUI.addListener(listener);
+
+      return node;
+    }
+  }, {
     id: "add-ons-button",
     shortcutId: "key_openAddons",
     tooltiptext: "add-ons-button.tooltiptext3",
diff --git a/browser/components/customizableui/content/panelUI.inc.xul b/browser/components/customizableui/content/panelUI.inc.xul
index 077d9c014..1b8fc0236 100644
--- a/browser/components/customizableui/content/panelUI.inc.xul
+++ b/browser/components/customizableui/content/panelUI.inc.xul
@@ -240,6 +240,8 @@
                      onclick="PanelUI.hide();"/>
     </panelview>
 
+    <panelview id="PanelUI-socialapi" flex="1"/>
+
     <panelview id="PanelUI-feeds" flex="1" oncommand="FeedHandler.subscribeToFeed(null, event);">
       <label value="&feedsMenu2.label;" class="panel-subview-header"/>
     </panelview>
diff --git a/browser/docs/UITelemetry.rst b/browser/docs/UITelemetry.rst
index 1a9213359..0b3302f8f 100644
--- a/browser/docs/UITelemetry.rst
+++ b/browser/docs/UITelemetry.rst
@@ -128,6 +128,7 @@ divide the following different context menu situations:
 - ``canvas`` if the user opened the context menu on a canvas (that isn't a link);
 - ``media`` if the user opened the context menu on an HTML video or audio element;
 - ``input`` if the user opened the context menu on a text input element;
+- ``social`` if the user opened the context menu inside a social frame;
 - ``other`` for all other openings of the content menu;
 
 Each of these objects (if they exist) then gets a "withcustom" and/or a "withoutcustom" property
diff --git a/browser/locales/en-US/chrome/browser/browser.dtd b/browser/locales/en-US/chrome/browser/browser.dtd
index 1045977e8..6de17b64f 100644
--- a/browser/locales/en-US/chrome/browser/browser.dtd
+++ b/browser/locales/en-US/chrome/browser/browser.dtd
@@ -163,7 +163,22 @@ These should match what Safari and other Apple applications use on OS X Lion. --
 <!ENTITY bookmarkThisPageCmd.label "Bookmark This Page">
 <!ENTITY editThisBookmarkCmd.label "Edit This Bookmark">
 <!ENTITY bookmarkThisPageCmd.commandkey "d">
-
+<!-- LOCALIZATION NOTE (findShareServices.label):
+  -  Use the unicode ellipsis char, \u2026,
+  -  or use "..." if \u2026 doesn't suit traditions in your locale. -->
+<!ENTITY findShareServices.label "Find more Share services…">
+<!ENTITY sharePageCmd.label "Share This Page">
+<!ENTITY sharePageCmd.commandkey "S">
+<!ENTITY sharePageCmd.accesskey "s">
+<!-- LOCALIZATION NOTE (shareLink.accesskey): must be different than the following share access keys -->
+<!ENTITY shareLink.label "Share This Link">
+<!ENTITY shareLink.accesskey "h">
+<!ENTITY shareImage.label "Share This Image">
+<!ENTITY shareImage.accesskey "r">
+<!ENTITY shareSelect.label "Share Selection">
+<!ENTITY shareSelect.accesskey "r">
+<!ENTITY shareVideo.label "Share This Video">
+<!ENTITY shareVideo.accesskey "r">
 <!ENTITY feedsMenu2.label "Subscribe to This Page">
 <!ENTITY subscribeToPageMenupopup.label "Subscribe to This Page">
 <!ENTITY subscribeToPageMenuitem.label "Subscribe to This Page…">
@@ -765,6 +780,14 @@ you can use these alternative items. Otherwise, their values should be empty.  -
 <!ENTITY syncReAuthItem.accesskey     "R">
 <!ENTITY syncToolbarButton.label      "Sync">
 
+<!ENTITY social.addons.label "Manage Services…">
+
+<!ENTITY social.directory.label "Activations Directory">
+<!ENTITY social.directory.text "You can activate Share services from the directory.">
+<!ENTITY social.directory.button "Take me there!">
+<!ENTITY social.directory.introText "Click on a service to add it to &brandShortName;.">
+<!ENTITY social.directory.viewmore.text "View More">
+
 <!ENTITY customizeMode.menuAndToolbars.header2 "Additional Tools and Features">
 <!ENTITY customizeMode.menuAndToolbars.empty "Want more tools?">
 <!ENTITY customizeMode.menuAndToolbars.emptyLink "Choose from thousands of add-ons">
diff --git a/browser/locales/en-US/chrome/browser/browser.properties b/browser/locales/en-US/chrome/browser/browser.properties
index 46b8aabc7..f7f3e9339 100644
--- a/browser/locales/en-US/chrome/browser/browser.properties
+++ b/browser/locales/en-US/chrome/browser/browser.properties
@@ -453,6 +453,29 @@ processHang.button_debug.accessKey = D
 # LOCALIZATION NOTE (fullscreenButton.tooltip): %S is the keyboard shortcut for full screen
 fullscreenButton.tooltip=Display the window in full screen (%S)
 
+service.toolbarbutton.label=Services
+service.toolbarbutton.tooltiptext=Services
+
+# LOCALIZATION NOTE (social.install.description): %1$S is the hostname of the social provider, %2$S is brandShortName (e.g. Firefox)
+service.install.description=Would you like to enable services from %1$S to display in your %2$S toolbar and sidebar?
+service.install.ok.label=Enable Services
+service.install.ok.accesskey=E
+
+# LOCALIZATION NOTE (social.markpageMenu.label): %S is the name of the social provider
+social.markpageMenu.label=Save Page to %S
+# LOCALIZATION NOTE (social.marklinkMenu.label): %S is the name of the social provider
+social.marklinkMenu.label=Save Link to %S
+
+# LOCALIZATION NOTE (social.error.message): %1$S is brandShortName (e.g. Firefox), %2$S is the name of the social provider
+social.error.message=%1$S is unable to connect with %2$S right now.
+social.error.tryAgain.label=Try Again
+social.error.tryAgain.accesskey=T
+social.error.closeSidebar.label=Close This Sidebar
+social.error.closeSidebar.accesskey=C
+
+# LOCALIZATION NOTE: %1$S is the label for the toolbar button, %2$S is the associated badge numbering that the social provider may provide.
+social.aria.toolbarButtonBadgeText=%1$S (%2$S)
+
 # LOCALIZATION NOTE (getUserMedia.shareCamera.message, getUserMedia.shareMicrophone.message,
 #                    getUserMedia.shareScreen.message, getUserMedia.shareCameraAndMicrophone.message,
 #                    getUserMedia.shareScreenAndMicrophone.message, getUserMedia.shareCameraAndAudioCapture.message,
diff --git a/browser/locales/en-US/chrome/browser/customizableui/customizableWidgets.properties b/browser/locales/en-US/chrome/browser/customizableui/customizableWidgets.properties
index 4574c6a81..a68f59fe3 100644
--- a/browser/locales/en-US/chrome/browser/customizableui/customizableWidgets.properties
+++ b/browser/locales/en-US/chrome/browser/customizableui/customizableWidgets.properties
@@ -95,6 +95,9 @@ quit-button.tooltiptext.linux2 = Quit %1$S (%2$S)
 # %2$S is the keyboard shortcut
 quit-button.tooltiptext.mac = Quit %1$S (%2$S)
 
+social-share-button.label = Share This Page
+social-share-button.tooltiptext = Share this page
+
 panic-button.label = Forget
 panic-button.tooltiptext = Forget about some browsing history
 
diff --git a/browser/modules/BrowserUITelemetry.jsm b/browser/modules/BrowserUITelemetry.jsm
index a6a5789f4..392462b45 100644
--- a/browser/modules/BrowserUITelemetry.jsm
+++ b/browser/modules/BrowserUITelemetry.jsm
@@ -694,7 +694,7 @@ this.BrowserUITelemetry = {
     "spell-undo-add-to-dictionary", "openlinkincurrent", "openlinkintab",
     "openlink",
     // "openlinkprivate" intentionally omitted for privacy reasons. See bug 1176391.
-    "bookmarklink", "savelink",
+    "bookmarklink", "sharelink", "savelink",
     "marklinkMenu", "copyemail", "copylink", "media-play", "media-pause",
     "media-mute", "media-unmute", "media-playbackrate",
     "media-playbackrate-050x", "media-playbackrate-100x",
@@ -702,12 +702,12 @@ this.BrowserUITelemetry = {
     "media-showcontrols", "media-hidecontrols",
     "video-fullscreen", "leave-dom-fullscreen",
     "reloadimage", "viewimage", "viewvideo", "copyimage-contents", "copyimage",
-    "copyvideourl", "copyaudiourl", "saveimage", "sendimage",
+    "copyvideourl", "copyaudiourl", "saveimage", "shareimage", "sendimage",
     "setDesktopBackground", "viewimageinfo", "viewimagedesc", "savevideo",
-    "saveaudio", "video-saveimage", "sendvideo", "sendaudio",
-    "ctp-play", "ctp-hide", "savepage", "pocket", "markpageMenu",
+    "sharevideo", "saveaudio", "video-saveimage", "sendvideo", "sendaudio",
+    "ctp-play", "ctp-hide", "sharepage", "savepage", "pocket", "markpageMenu",
     "viewbgimage", "undo", "cut", "copy", "paste", "delete", "selectall",
-    "keywordfield", "searchselect", "frame", "showonlythisframe",
+    "keywordfield", "searchselect", "shareselect", "frame", "showonlythisframe",
     "openframeintab", "openframe", "reloadframe", "bookmarkframe", "saveframe",
     "printframe", "viewframesource", "viewframeinfo",
     "viewpartialsource-selection", "viewpartialsource-mathml",
diff --git a/browser/modules/Social.jsm b/browser/modules/Social.jsm
new file mode 100644
index 000000000..1569e0122
--- /dev/null
+++ b/browser/modules/Social.jsm
@@ -0,0 +1,272 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = ["Social", "OpenGraphBuilder",
+                         "DynamicResizeWatcher", "sizeSocialPanelToContent"];
+
+const Ci = Components.interfaces;
+const Cc = Components.classes;
+const Cu = Components.utils;
+
+// The minimum sizes for the auto-resize panel code, minimum size necessary to
+// properly show the error page in the panel.
+const PANEL_MIN_HEIGHT = 190;
+const PANEL_MIN_WIDTH = 330;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "CustomizableUI",
+  "resource:///modules/CustomizableUI.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "SocialService",
+  "resource:///modules/SocialService.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "PageMetadata",
+  "resource://gre/modules/PageMetadata.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
+  "resource://gre/modules/PlacesUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Promise",
+  "resource://gre/modules/Promise.jsm");
+
+
+this.Social = {
+  initialized: false,
+  lastEventReceived: 0,
+  providers: [],
+  _disabledForSafeMode: false,
+
+  init: function Social_init() {
+    this._disabledForSafeMode = Services.appinfo.inSafeMode && this.enabled;
+    let deferred = Promise.defer();
+
+    if (this.initialized) {
+      deferred.resolve(true);
+      return deferred.promise;
+    }
+    this.initialized = true;
+    // if SocialService.hasEnabledProviders, retreive the providers so the
+    // front-end can generate UI
+    if (SocialService.hasEnabledProviders) {
+      // Retrieve the current set of providers, and set the current provider.
+      SocialService.getOrderedProviderList(function (providers) {
+        Social._updateProviderCache(providers);
+        Social._updateEnabledState(SocialService.enabled);
+        deferred.resolve(false);
+      });
+    } else {
+      deferred.resolve(false);
+    }
+
+    // Register an observer for changes to the provider list
+    SocialService.registerProviderListener(function providerListener(topic, origin, providers) {
+      // An engine change caused by adding/removing a provider should notify.
+      // any providers we receive are enabled in the AddonsManager
+      if (topic == "provider-installed" || topic == "provider-uninstalled") {
+        // installed/uninstalled do not send the providers param
+        Services.obs.notifyObservers(null, "social:" + topic, origin);
+        return;
+      }
+      if (topic == "provider-enabled") {
+        Social._updateProviderCache(providers);
+        Social._updateEnabledState(true);
+        Services.obs.notifyObservers(null, "social:" + topic, origin);
+        return;
+      }
+      if (topic == "provider-disabled") {
+        // a provider was removed from the list of providers, update states
+        Social._updateProviderCache(providers);
+        Social._updateEnabledState(providers.length > 0);
+        Services.obs.notifyObservers(null, "social:" + topic, origin);
+        return;
+      }
+      if (topic == "provider-update") {
+        // a provider has self-updated its manifest, we need to update our cache
+        // and reload the provider.
+        Social._updateProviderCache(providers);
+        let provider = Social._getProviderFromOrigin(origin);
+        provider.reload();
+      }
+    });
+    return deferred.promise;
+  },
+
+  _updateEnabledState: function(enable) {
+    for (let p of Social.providers) {
+      p.enabled = enable;
+    }
+  },
+
+  // Called to update our cache of providers and set the current provider
+  _updateProviderCache: function (providers) {
+    this.providers = providers;
+    Services.obs.notifyObservers(null, "social:providers-changed", null);
+  },
+
+  get enabled() {
+    return !this._disabledForSafeMode && this.providers.length > 0;
+  },
+
+  _getProviderFromOrigin: function (origin) {
+    for (let p of this.providers) {
+      if (p.origin == origin) {
+        return p;
+      }
+    }
+    return null;
+  },
+
+  getManifestByOrigin: function(origin) {
+    return SocialService.getManifestByOrigin(origin);
+  },
+
+  installProvider: function(data, installCallback, options={}) {
+    SocialService.installProvider(data, installCallback, options);
+  },
+
+  uninstallProvider: function(origin, aCallback) {
+    SocialService.uninstallProvider(origin, aCallback);
+  },
+
+  // Activation functionality
+  activateFromOrigin: function (origin, callback) {
+    // It's OK if the provider has already been activated - we still get called
+    // back with it.
+    SocialService.enableProvider(origin, callback);
+  }
+};
+
+function sizeSocialPanelToContent(panel, iframe, requestedSize) {
+  let doc = iframe.contentDocument;
+  if (!doc || !doc.body) {
+    return;
+  }
+  // We need an element to use for sizing our panel.  See if the body defines
+  // an id for that element, otherwise use the body itself.
+  let body = doc.body;
+  let docEl = doc.documentElement;
+  let bodyId = body.getAttribute("contentid");
+  if (bodyId) {
+    body = doc.getElementById(bodyId) || doc.body;
+  }
+  // offsetHeight/Width don't include margins, so account for that.
+  let cs = doc.defaultView.getComputedStyle(body);
+  let width = Math.max(PANEL_MIN_WIDTH, docEl.offsetWidth);
+  let height = Math.max(PANEL_MIN_HEIGHT, docEl.offsetHeight);
+  // if the panel is preloaded prior to being shown, cs will be null.  in that
+  // case use the minimum size for the panel until it is shown.
+  if (cs) {
+    let computedHeight = parseInt(cs.marginTop) + body.offsetHeight + parseInt(cs.marginBottom);
+    height = Math.max(computedHeight, height);
+    let computedWidth = parseInt(cs.marginLeft) + body.offsetWidth + parseInt(cs.marginRight);
+    width = Math.max(computedWidth, width);
+  }
+
+  // if our scrollHeight is still larger than the iframe, the css calculations
+  // above did not work for this site, increase the height. This can happen if
+  // the site increases its height for additional UI.
+  if (docEl.scrollHeight > iframe.boxObject.height)
+    height = docEl.scrollHeight;
+
+  // if a size was defined in the manifest use it as a minimum
+  if (requestedSize) {
+    if (requestedSize.height)
+      height = Math.max(height, requestedSize.height);
+    if (requestedSize.width)
+      width = Math.max(width, requestedSize.width);
+  }
+
+  // add the extra space used by the panel (toolbar, borders, etc) if the iframe
+  // has been loaded
+  if (iframe.boxObject.width && iframe.boxObject.height) {
+    // add extra space the panel needs if any
+    width += panel.boxObject.width - iframe.boxObject.width;
+    height += panel.boxObject.height - iframe.boxObject.height;
+  }
+
+  // using panel.sizeTo will ignore css transitions, set size via style
+  if (Math.abs(panel.boxObject.width - width) >= 2)
+    panel.style.width = width + "px";
+  if (Math.abs(panel.boxObject.height - height) >= 2)
+    panel.style.height = height + "px";
+}
+
+function DynamicResizeWatcher() {
+  this._mutationObserver = null;
+}
+
+DynamicResizeWatcher.prototype = {
+  start: function DynamicResizeWatcher_start(panel, iframe, requestedSize) {
+    this.stop(); // just in case...
+    let doc = iframe.contentDocument;
+    this._mutationObserver = new iframe.contentWindow.MutationObserver((mutations) => {
+      sizeSocialPanelToContent(panel, iframe, requestedSize);
+    });
+    // Observe anything that causes the size to change.
+    let config = {attributes: true, characterData: true, childList: true, subtree: true};
+    this._mutationObserver.observe(doc, config);
+    // and since this may be setup after the load event has fired we do an
+    // initial resize now.
+    sizeSocialPanelToContent(panel, iframe, requestedSize);
+  },
+  stop: function DynamicResizeWatcher_stop() {
+    if (this._mutationObserver) {
+      try {
+        this._mutationObserver.disconnect();
+      } catch (ex) {
+        // may get "TypeError: can't access dead object" which seems strange,
+        // but doesn't seem to indicate a real problem, so ignore it...
+      }
+      this._mutationObserver = null;
+    }
+  }
+}
+
+
+this.OpenGraphBuilder = {
+  generateEndpointURL: function(URLTemplate, pageData) {
+    // support for existing oexchange style endpoints by supporting their
+    // querystring arguments. parse the query string template and do
+    // replacements where necessary the query names may be different than ours,
+    // so we could see u=%{url} or url=%{url}
+    let [endpointURL, queryString] = URLTemplate.split("?");
+    let query = {};
+    if (queryString) {
+      queryString.split('&').forEach(function (val) {
+        let [name, value] = val.split('=');
+        let p = /%\{(.+)\}/.exec(value);
+        if (!p) {
+          // preserve non-template query vars
+          query[name] = value;
+        } else if (pageData[p[1]]) {
+          if (p[1] == "previews")
+            query[name] = pageData[p[1]][0];
+          else
+            query[name] = pageData[p[1]];
+        } else if (p[1] == "body") {
+          // build a body for emailers
+          let body = "";
+          if (pageData.title)
+            body += pageData.title + "\n\n";
+          if (pageData.description)
+            body += pageData.description + "\n\n";
+          if (pageData.text)
+            body += pageData.text + "\n\n";
+          body += pageData.url;
+          query["body"] = body;
+        }
+      });
+      // if the url template doesn't have title and no text was provided, add the title as the text.
+      if (!query.text && !query.title && pageData.title) {
+        query.text = pageData.title;
+      }
+    }
+    var str = [];
+    for (let p in query)
+       str.push(p + "=" + encodeURIComponent(query[p]));
+    if (str.length)
+      endpointURL = endpointURL + "?" + str.join("&");
+    return endpointURL;
+  },
+};
diff --git a/browser/modules/SocialService.jsm b/browser/modules/SocialService.jsm
new file mode 100644
index 000000000..95f5e0259
--- /dev/null
+++ b/browser/modules/SocialService.jsm
@@ -0,0 +1,1097 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+this.EXPORTED_SYMBOLS = ["SocialService"];
+
+const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/AddonManager.jsm");
+Cu.import("resource://gre/modules/PlacesUtils.jsm");
+
+const URI_EXTENSION_STRINGS  = "chrome://mozapps/locale/extensions/extensions.properties";
+const ADDON_TYPE_SERVICE     = "service";
+const ID_SUFFIX              = "@services.mozilla.org";
+const STRING_TYPE_NAME       = "type.%ID%.name";
+
+XPCOMUtils.defineLazyModuleGetter(this, "DeferredTask", "resource://gre/modules/DeferredTask.jsm");
+
+XPCOMUtils.defineLazyServiceGetter(this, "etld",
+                                   "@mozilla.org/network/effective-tld-service;1",
+                                   "nsIEffectiveTLDService");
+
+/**
+ * The SocialService is the public API to social providers - it tracks which
+ * providers are installed and enabled, and is the entry-point for access to
+ * the provider itself.
+ */
+
+// Internal helper methods and state
+var SocialServiceInternal = {
+  get enabled() {
+    return this.providerArray.length > 0;
+  },
+
+  get providerArray() {
+    return Object.keys(this.providers).map(origin => this.providers[origin]);
+  },
+  *manifestsGenerator() {
+    // Retrieve the manifests of installed providers from prefs
+    let MANIFEST_PREFS = Services.prefs.getBranch("social.manifest.");
+    let prefs = MANIFEST_PREFS.getChildList("", []);
+    for (let pref of prefs) {
+      // we only consider manifests in user level prefs to be *installed*
+      if (!MANIFEST_PREFS.prefHasUserValue(pref))
+        continue;
+      try {
+        var manifest = JSON.parse(MANIFEST_PREFS.getComplexValue(pref, Ci.nsISupportsString).data);
+        if (manifest && typeof(manifest) == "object" && manifest.origin)
+          yield manifest;
+      } catch (err) {
+        Cu.reportError("SocialService: failed to load manifest: " + pref +
+                       ", exception: " + err);
+      }
+    }
+  },
+  get manifests() {
+    return this.manifestsGenerator();
+  },
+  getManifestPrefname: function(origin) {
+    // Retrieve the prefname for a given origin/manifest.
+    // If no existing pref, return a generated prefname.
+    let MANIFEST_PREFS = Services.prefs.getBranch("social.manifest.");
+    let prefs = MANIFEST_PREFS.getChildList("", []);
+    for (let pref of prefs) {
+      try {
+        var manifest = JSON.parse(MANIFEST_PREFS.getComplexValue(pref, Ci.nsISupportsString).data);
+        if (manifest.origin == origin) {
+          return pref;
+        }
+      } catch (err) {
+        Cu.reportError("SocialService: failed to load manifest: " + pref +
+                       ", exception: " + err);
+      }
+    }
+    let originUri = Services.io.newURI(origin, null, null);
+    return originUri.hostPort.replace('.', '-');
+  },
+  orderedProviders: function(aCallback) {
+    if (SocialServiceInternal.providerArray.length < 2) {
+      schedule(function () {
+        aCallback(SocialServiceInternal.providerArray);
+      });
+      return;
+    }
+    // query moz_hosts for frecency.  since some providers may not have a
+    // frecency entry, we need to later sort on our own. We use the providers
+    // object below as an easy way to later record the frecency on the provider
+    // object from the query results.
+    let hosts = [];
+    let providers = {};
+
+    for (let p of SocialServiceInternal.providerArray) {
+      p.frecency = 0;
+      providers[p.domain] = p;
+      hosts.push(p.domain);
+    }
+
+    // cannot bind an array to stmt.params so we have to build the string
+    let stmt = PlacesUtils.history.QueryInterface(Ci.nsPIPlacesDatabase)
+                                 .DBConnection.createAsyncStatement(
+      "SELECT host, frecency FROM moz_hosts WHERE host IN (" +
+      hosts.map(host => '"' + host + '"').join(",") + ") "
+    );
+
+    try {
+      stmt.executeAsync({
+        handleResult: function(aResultSet) {
+          let row;
+          while ((row = aResultSet.getNextRow())) {
+            let rh = row.getResultByName("host");
+            let frecency = row.getResultByName("frecency");
+            providers[rh].frecency = parseInt(frecency) || 0;
+          }
+        },
+        handleError: function(aError) {
+          Cu.reportError(aError.message + " (Result = " + aError.result + ")");
+        },
+        handleCompletion: function(aReason) {
+          // the query may not have returned all our providers, so we have
+          // stamped the frecency on the provider and sort here. This makes sure
+          // all enabled providers get sorted even with frecency zero.
+          let providerList = SocialServiceInternal.providerArray;
+          // reverse sort
+          aCallback(providerList.sort((a, b) => b.frecency - a.frecency));
+        }
+      });
+    } finally {
+      stmt.finalize();
+    }
+  }
+};
+
+XPCOMUtils.defineLazyGetter(SocialServiceInternal, "providers", function () {
+  initService();
+  let providers = {};
+  for (let manifest of this.manifests) {
+    try {
+      if (ActiveProviders.has(manifest.origin)) {
+        // enable the api when a provider is enabled
+        let provider = new SocialProvider(manifest);
+        providers[provider.origin] = provider;
+      }
+    } catch (err) {
+      Cu.reportError("SocialService: failed to load provider: " + manifest.origin +
+                     ", exception: " + err);
+    }
+  }
+  return providers;
+});
+
+function getOriginActivationType(origin) {
+  // if this is an about uri, treat it as a directory
+  let URI = Services.io.newURI(origin, null, null);
+  let principal = Services.scriptSecurityManager.createCodebasePrincipal(URI, {});
+  if (Services.scriptSecurityManager.isSystemPrincipal(principal) || origin == "moz-safe-about:home") {
+    return "internal";
+  }
+
+  let directories = Services.prefs.getCharPref("social.directories").split(',');
+  if (directories.indexOf(origin) >= 0)
+    return "directory";
+
+  return "foreign";
+}
+
+var ActiveProviders = {
+  get _providers() {
+    delete this._providers;
+    this._providers = {};
+    try {
+      let pref = Services.prefs.getComplexValue("social.activeProviders",
+                                                Ci.nsISupportsString);
+      this._providers = JSON.parse(pref);
+    } catch (ex) {}
+    return this._providers;
+  },
+
+  has: function (origin) {
+    return (origin in this._providers);
+  },
+
+  add: function (origin) {
+    this._providers[origin] = 1;
+    this._deferredTask.arm();
+  },
+
+  delete: function (origin) {
+    delete this._providers[origin];
+    this._deferredTask.arm();
+  },
+
+  flush: function () {
+    this._deferredTask.disarm();
+    this._persist();
+  },
+
+  get _deferredTask() {
+    delete this._deferredTask;
+    return this._deferredTask = new DeferredTask(this._persist.bind(this), 0);
+  },
+
+  _persist: function () {
+    let string = Cc["@mozilla.org/supports-string;1"].
+                 createInstance(Ci.nsISupportsString);
+    string.data = JSON.stringify(this._providers);
+    Services.prefs.setComplexValue("social.activeProviders",
+                                   Ci.nsISupportsString, string);
+  }
+};
+
+function migrateSettings() {
+  let activeProviders, enabled;
+  try {
+    activeProviders = Services.prefs.getCharPref("social.activeProviders");
+  } catch (e) {
+    // not set, we'll check if we need to migrate older prefs
+  }
+  if (Services.prefs.prefHasUserValue("social.enabled")) {
+    enabled = Services.prefs.getBoolPref("social.enabled");
+  }
+  if (activeProviders) {
+    // migration from fx21 to fx22 or later
+    // ensure any *builtin* provider in activeproviders is in user level prefs
+    for (let origin in ActiveProviders._providers) {
+      let prefname;
+      let manifest;
+      let defaultManifest;
+      try {
+        prefname = getPrefnameFromOrigin(origin);
+        manifest = JSON.parse(Services.prefs.getComplexValue(prefname, Ci.nsISupportsString).data);
+      } catch (e) {
+        // Our preference is missing or bad, remove from ActiveProviders and
+        // continue. This is primarily an error-case and should only be
+        // reached by either messing with preferences or hitting the one or
+        // two days of nightly that ran into it, so we'll flush right away.
+        ActiveProviders.delete(origin);
+        ActiveProviders.flush();
+        continue;
+      }
+      let needsUpdate = !manifest.updateDate;
+      // fx23 may have built-ins with shareURL
+      try {
+        defaultManifest = Services.prefs.getDefaultBranch(null)
+                        .getComplexValue(prefname, Ci.nsISupportsString).data;
+        defaultManifest = JSON.parse(defaultManifest);
+      } catch (e) {
+        // not a built-in, continue
+      }
+      if (defaultManifest) {
+        if (defaultManifest.shareURL && !manifest.shareURL) {
+          manifest.shareURL = defaultManifest.shareURL;
+          needsUpdate = true;
+        }
+        if (defaultManifest.version && (!manifest.version || defaultManifest.version > manifest.version)) {
+          manifest = defaultManifest;
+          needsUpdate = true;
+        }
+      }
+      if (needsUpdate) {
+        // the provider was installed with an older build, so we will update the
+        // timestamp and ensure the manifest is in user prefs
+        delete manifest.builtin;
+        // we're potentially updating for share, so always mark the updateDate
+        manifest.updateDate = Date.now();
+        if (!manifest.installDate)
+          manifest.installDate = 0; // we don't know when it was installed
+
+        let string = Cc["@mozilla.org/supports-string;1"].
+                     createInstance(Ci.nsISupportsString);
+        string.data = JSON.stringify(manifest);
+        Services.prefs.setComplexValue(prefname, Ci.nsISupportsString, string);
+      }
+      // as of fx 29, we no longer rely on social.enabled. migration from prior
+      // versions should disable all service addons if social.enabled=false
+      if (enabled === false) {
+        ActiveProviders.delete(origin);
+      }
+    }
+    ActiveProviders.flush();
+    Services.prefs.clearUserPref("social.enabled");
+    return;
+  }
+
+  // primary migration from pre-fx21
+  let active;
+  try {
+    active = Services.prefs.getBoolPref("social.active");
+  } catch (e) {}
+  if (!active)
+    return;
+
+  // primary difference from SocialServiceInternal.manifests is that we
+  // only read the default branch here.
+  let manifestPrefs = Services.prefs.getDefaultBranch("social.manifest.");
+  let prefs = manifestPrefs.getChildList("", []);
+  for (let pref of prefs) {
+    try {
+      let manifest;
+      try {
+        manifest = JSON.parse(manifestPrefs.getComplexValue(pref, Ci.nsISupportsString).data);
+      } catch (e) {
+        // bad or missing preference, we wont update this one.
+        continue;
+      }
+      if (manifest && typeof(manifest) == "object" && manifest.origin) {
+        // our default manifests have been updated with the builtin flags as of
+        // fx22, delete it so we can set the user-pref
+        delete manifest.builtin;
+        if (!manifest.updateDate) {
+          manifest.updateDate = Date.now();
+          manifest.installDate = 0; // we don't know when it was installed
+        }
+
+        let string = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString);
+        string.data = JSON.stringify(manifest);
+        // pref here is just the branch name, set the full pref name
+        Services.prefs.setComplexValue("social.manifest." + pref, Ci.nsISupportsString, string);
+        ActiveProviders.add(manifest.origin);
+        ActiveProviders.flush();
+        // social.active was used at a time that there was only one
+        // builtin, we'll assume that is still the case
+        return;
+      }
+    } catch (err) {
+      Cu.reportError("SocialService: failed to load manifest: " + pref + ", exception: " + err);
+    }
+  }
+}
+
+function initService() {
+  Services.obs.addObserver(function xpcomShutdown() {
+    ActiveProviders.flush();
+    SocialService._providerListeners = null;
+    Services.obs.removeObserver(xpcomShutdown, "xpcom-shutdown");
+  }, "xpcom-shutdown", false);
+
+  try {
+    migrateSettings();
+  } catch (e) {
+    // no matter what, if migration fails we do not want to render social
+    // unusable. Worst case scenario is that, when upgrading Firefox, previously
+    // enabled providers are not migrated.
+    Cu.reportError("Error migrating social settings: " + e);
+  }
+}
+
+function schedule(callback) {
+  Services.tm.mainThread.dispatch(callback, Ci.nsIThread.DISPATCH_NORMAL);
+}
+
+// Public API
+this.SocialService = {
+  get hasEnabledProviders() {
+    // used as an optimization during startup, can be used to check if further
+    // initialization should be done (e.g. creating the instances of
+    // SocialProvider and turning on UI). ActiveProviders may have changed and
+    // not yet flushed so we check the active providers array
+    for (let p in ActiveProviders._providers) {
+      return true;
+    }
+    return false;
+  },
+  get enabled() {
+    return SocialServiceInternal.enabled;
+  },
+  set enabled(val) {
+    throw new Error("not allowed to set SocialService.enabled");
+  },
+
+  // Enables a provider, the manifest must already exist in prefs. The provider
+  // may or may not have previously been added. onDone is always called
+  // - with null if no such provider exists, or the activated provider on
+  // success.
+  enableProvider: function enableProvider(origin, onDone) {
+    if (SocialServiceInternal.providers[origin]) {
+      schedule(function() {
+        onDone(SocialServiceInternal.providers[origin]);
+      });
+      return;
+    }
+    let manifest = SocialService.getManifestByOrigin(origin);
+    if (manifest) {
+      let addon = new AddonWrapper(manifest);
+      AddonManagerPrivate.callAddonListeners("onEnabling", addon, false);
+      addon.pendingOperations |= AddonManager.PENDING_ENABLE;
+      this.addProvider(manifest, onDone);
+      addon.pendingOperations -= AddonManager.PENDING_ENABLE;
+      AddonManagerPrivate.callAddonListeners("onEnabled", addon);
+      return;
+    }
+    schedule(function() {
+      onDone(null);
+    });
+  },
+
+  // Adds a provider given a manifest, and returns the added provider.
+  addProvider: function addProvider(manifest, onDone) {
+    if (SocialServiceInternal.providers[manifest.origin])
+      throw new Error("SocialService.addProvider: provider with this origin already exists");
+
+    // enable the api when a provider is enabled
+    let provider = new SocialProvider(manifest);
+    SocialServiceInternal.providers[provider.origin] = provider;
+    ActiveProviders.add(provider.origin);
+
+    this.getOrderedProviderList(function (providers) {
+      this._notifyProviderListeners("provider-enabled", provider.origin, providers);
+      if (onDone)
+        onDone(provider);
+    }.bind(this));
+  },
+
+  // Removes a provider with the given origin, and notifies when the removal is
+  // complete.
+  disableProvider: function disableProvider(origin, onDone) {
+    if (!(origin in SocialServiceInternal.providers))
+      throw new Error("SocialService.disableProvider: no provider with origin " + origin + " exists!");
+
+    let provider = SocialServiceInternal.providers[origin];
+    let manifest = SocialService.getManifestByOrigin(origin);
+    let addon = manifest && new AddonWrapper(manifest);
+    if (addon) {
+      AddonManagerPrivate.callAddonListeners("onDisabling", addon, false);
+      addon.pendingOperations |= AddonManager.PENDING_DISABLE;
+    }
+    provider.enabled = false;
+
+    ActiveProviders.delete(provider.origin);
+
+    delete SocialServiceInternal.providers[origin];
+
+    if (addon) {
+      // we have to do this now so the addon manager ui will update an uninstall
+      // correctly.
+      addon.pendingOperations -= AddonManager.PENDING_DISABLE;
+      AddonManagerPrivate.callAddonListeners("onDisabled", addon);
+    }
+
+    this.getOrderedProviderList(function (providers) {
+      this._notifyProviderListeners("provider-disabled", origin, providers);
+      if (onDone)
+        onDone();
+    }.bind(this));
+  },
+
+  // Returns a single provider object with the specified origin.  The provider
+  // must be "installed" (ie, in ActiveProviders)
+  getProvider: function getProvider(origin, onDone) {
+    schedule((function () {
+      onDone(SocialServiceInternal.providers[origin] || null);
+    }).bind(this));
+  },
+
+  // Returns an unordered array of installed providers
+  getProviderList: function(onDone) {
+    schedule(function () {
+      onDone(SocialServiceInternal.providerArray);
+    });
+  },
+
+  getManifestByOrigin: function(origin) {
+    for (let manifest of SocialServiceInternal.manifests) {
+      if (origin == manifest.origin) {
+        return manifest;
+      }
+    }
+    return null;
+  },
+
+  // Returns an array of installed providers, sorted by frecency
+  getOrderedProviderList: function(onDone) {
+    SocialServiceInternal.orderedProviders(onDone);
+  },
+
+  getOriginActivationType: function (origin) {
+    return getOriginActivationType(origin);
+  },
+
+  _providerListeners: new Map(),
+  registerProviderListener: function registerProviderListener(listener) {
+    this._providerListeners.set(listener, 1);
+  },
+  unregisterProviderListener: function unregisterProviderListener(listener) {
+    this._providerListeners.delete(listener);
+  },
+
+  _notifyProviderListeners: function (topic, origin, providers) {
+    for (let [listener, ] of this._providerListeners) {
+      try {
+        listener(topic, origin, providers);
+      } catch (ex) {
+        Components.utils.reportError("SocialService: provider listener threw an exception: " + ex);
+      }
+    }
+  },
+
+  _manifestFromData: function(type, data, installOrigin) {
+    let featureURLs = ['shareURL'];
+    let resolveURLs = featureURLs.concat(['postActivationURL']);
+
+    if (type == 'directory' || type == 'internal') {
+      // directory provided manifests must have origin in manifest, use that
+      if (!data['origin']) {
+        Cu.reportError("SocialService.manifestFromData directory service provided manifest without origin.");
+        return null;
+      }
+      installOrigin = data.origin;
+    }
+    // force/fixup origin
+    let URI = Services.io.newURI(installOrigin, null, null);
+    let principal = Services.scriptSecurityManager.createCodebasePrincipal(URI, {});
+    data.origin = principal.origin;
+
+    // iconURL and name are required
+    let providerHasFeatures = featureURLs.some(url => data[url]);
+    if (!providerHasFeatures) {
+      Cu.reportError("SocialService.manifestFromData manifest missing required urls.");
+      return null;
+    }
+    if (!data['name'] || !data['iconURL']) {
+      Cu.reportError("SocialService.manifestFromData manifest missing name or iconURL.");
+      return null;
+    }
+    for (let url of resolveURLs) {
+      if (data[url]) {
+        try {
+          let resolved = Services.io.newURI(principal.URI.resolve(data[url]), null, null);
+          if (!(resolved.schemeIs("http") || resolved.schemeIs("https"))) {
+            Cu.reportError("SocialService.manifestFromData unsupported scheme '" + resolved.scheme + "' for " + principal.origin);
+            return null;
+          }
+          data[url] = resolved.spec;
+        } catch (e) {
+          Cu.reportError("SocialService.manifestFromData unable to resolve '" + url + "' for " + principal.origin);
+          return null;
+        }
+      }
+    }
+    return data;
+  },
+
+  _showInstallNotification: function(data, aAddonInstaller) {
+    let brandBundle = Services.strings.createBundle("chrome://branding/locale/brand.properties");
+    let browserBundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
+
+    // internal/directory activations need to use the manifest origin, any other
+    // use the domain activation is occurring on
+    let url = data.url;
+    if (data.installType == "internal" || data.installType == "directory") {
+      url = data.manifest.origin;
+    }
+    let requestingURI =  Services.io.newURI(url, null, null);
+    let productName = brandBundle.GetStringFromName("brandShortName");
+
+    let message = browserBundle.formatStringFromName("service.install.description",
+                                                     [requestingURI.host, productName], 2);
+
+    let action = {
+      label: browserBundle.GetStringFromName("service.install.ok.label"),
+      accessKey: browserBundle.GetStringFromName("service.install.ok.accesskey"),
+      callback: function() {
+        aAddonInstaller.install();
+      },
+    };
+
+    let options = {
+                    learnMoreURL: Services.urlFormatter.formatURLPref("app.support.baseURL") + "social-api",
+                  };
+    let anchor = "servicesInstall-notification-icon";
+    let notificationid = "servicesInstall";
+    data.window.PopupNotifications.show(data.window.gBrowser.selectedBrowser,
+                                        notificationid, message, anchor,
+                                        action, [], options);
+  },
+
+  installProvider: function(data, installCallback, options={}) {
+    data.installType = getOriginActivationType(data.origin);
+    // if we get data, we MUST have a valid manifest generated from the data
+    let manifest = this._manifestFromData(data.installType, data.manifest, data.origin);
+    if (!manifest)
+      throw new Error("SocialService.installProvider: service configuration is invalid from " + data.url);
+
+    let addon = new AddonWrapper(manifest);
+    if (addon && addon.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED)
+      throw new Error("installProvider: provider with origin [" +
+                      data.origin + "] is blocklisted");
+    // manifestFromData call above will enforce correct origin. To support
+    // activation from about: uris, we need to be sure to use the updated
+    // origin on the manifest.
+    data.manifest = manifest;
+    let id = getAddonIDFromOrigin(manifest.origin);
+    AddonManager.getAddonByID(id, function(aAddon) {
+      if (aAddon && aAddon.userDisabled) {
+        aAddon.cancelUninstall();
+        aAddon.userDisabled = false;
+      }
+      schedule(function () {
+        try {
+          this._installProvider(data, options, aManifest => {
+              this._notifyProviderListeners("provider-installed", aManifest.origin);
+              installCallback(aManifest);
+          });
+        } catch (e) {
+          Cu.reportError("Activation failed: " + e);
+          installCallback(null);
+        }
+      }.bind(this));
+    }.bind(this));
+  },
+
+  _installProvider: function(data, options, installCallback) {
+    if (!data.manifest)
+      throw new Error("Cannot install provider without manifest data");
+
+    if (data.installType == "foreign" && !Services.prefs.getBoolPref("social.remote-install.enabled"))
+      throw new Error("Remote install of services is disabled");
+
+    // if installing from any website, the install must happen over https.
+    // "internal" are installs from about:home or similar
+    if (data.installType != "internal" && !Services.io.newURI(data.origin, null, null).schemeIs("https")) {
+      throw new Error("attempt to activate provider over unsecured channel: " + data.origin);
+    }
+
+    let installer = new AddonInstaller(data.url, data.manifest, installCallback);
+    let bypassPanel = options.bypassInstallPanel ||
+                      (data.installType == "internal" && data.manifest.oneclick);
+    if (bypassPanel)
+      installer.install();
+    else
+      this._showInstallNotification(data, installer);
+  },
+
+  createWrapper: function(manifest) {
+    return new AddonWrapper(manifest);
+  },
+
+  /**
+   * updateProvider is used from the worker to self-update.  Since we do not
+   * have knowledge of the currently selected provider here, we will notify
+   * the front end to deal with any reload.
+   */
+  updateProvider: function(aUpdateOrigin, aManifest) {
+    let installType = this.getOriginActivationType(aUpdateOrigin);
+    // if we get data, we MUST have a valid manifest generated from the data
+    let manifest = this._manifestFromData(installType, aManifest, aUpdateOrigin);
+    if (!manifest)
+      throw new Error("SocialService.installProvider: service configuration is invalid from " + aUpdateOrigin);
+
+    // overwrite the preference
+    let string = Cc["@mozilla.org/supports-string;1"].
+                 createInstance(Ci.nsISupportsString);
+    string.data = JSON.stringify(manifest);
+    Services.prefs.setComplexValue(getPrefnameFromOrigin(manifest.origin), Ci.nsISupportsString, string);
+
+    // overwrite the existing provider then notify the front end so it can
+    // handle any reload that might be necessary.
+    if (ActiveProviders.has(manifest.origin)) {
+      let provider = SocialServiceInternal.providers[manifest.origin];
+      provider.enabled = false;
+      provider = new SocialProvider(manifest);
+      SocialServiceInternal.providers[provider.origin] = provider;
+      // update the cache and ui, reload provider if necessary
+      this.getOrderedProviderList(providers => {
+        this._notifyProviderListeners("provider-update", provider.origin, providers);
+      });
+    }
+
+  },
+
+  uninstallProvider: function(origin, aCallback) {
+    let manifest = SocialService.getManifestByOrigin(origin);
+    let addon = new AddonWrapper(manifest);
+    addon.uninstall(aCallback);
+  }
+};
+
+/**
+ * The SocialProvider object represents a social provider.
+ *
+ * @constructor
+ * @param {jsobj} object representing the manifest file describing this provider
+ * @param {bool} boolean indicating whether this provider is "built in"
+ */
+function SocialProvider(input) {
+  if (!input.name)
+    throw new Error("SocialProvider must be passed a name");
+  if (!input.origin)
+    throw new Error("SocialProvider must be passed an origin");
+
+  let addon = new AddonWrapper(input);
+  if (addon.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED)
+    throw new Error("SocialProvider: provider with origin [" +
+                    input.origin + "] is blocklisted");
+
+  this.name = input.name;
+  this.iconURL = input.iconURL;
+  this.icon32URL = input.icon32URL;
+  this.icon64URL = input.icon64URL;
+  this.shareURL = input.shareURL;
+  this.postActivationURL = input.postActivationURL;
+  this.origin = input.origin;
+  let originUri = Services.io.newURI(input.origin, null, null);
+  this.principal = Services.scriptSecurityManager.createCodebasePrincipal(originUri, {});
+  this.ambientNotificationIcons = {};
+  this.errorState = null;
+  this.frecency = 0;
+
+  try {
+    this.domain = etld.getBaseDomainFromHost(originUri.host);
+  } catch (e) {
+    this.domain = originUri.host;
+  }
+}
+
+SocialProvider.prototype = {
+  reload: function() {
+    // calling terminate/activate does not set the enabled state whereas setting
+    // enabled will call terminate/activate
+    this.enabled = false;
+    this.enabled = true;
+    Services.obs.notifyObservers(null, "social:provider-reload", this.origin);
+  },
+
+  // Provider enabled/disabled state.
+  _enabled: false,
+  get enabled() {
+    return this._enabled;
+  },
+  set enabled(val) {
+    let enable = !!val;
+    if (enable == this._enabled)
+      return;
+
+    this._enabled = enable;
+
+    if (enable) {
+      this._activate();
+    } else {
+      this._terminate();
+    }
+  },
+
+  get manifest() {
+    return SocialService.getManifestByOrigin(this.origin);
+  },
+
+  getPageSize: function(name) {
+    let manifest = this.manifest;
+    if (manifest && manifest.pageSize)
+      return manifest.pageSize[name];
+    return undefined;
+  },
+
+  // Internal helper methods
+  _activate: function _activate() {
+  },
+
+  _terminate: function _terminate() {
+    this.errorState = null;
+  },
+
+  /**
+   * Checks if a given URI is of the same origin as the provider.
+   *
+   * Returns true or false.
+   *
+   * @param {URI or string} uri
+   */
+  isSameOrigin: function isSameOrigin(uri, allowIfInheritsPrincipal) {
+    if (!uri)
+      return false;
+    if (typeof uri == "string") {
+      try {
+        uri = Services.io.newURI(uri, null, null);
+      } catch (ex) {
+        // an invalid URL can't be loaded!
+        return false;
+      }
+    }
+    try {
+      this.principal.checkMayLoad(
+        uri, // the thing to check.
+        false, // reportError - we do our own reporting when necessary.
+        allowIfInheritsPrincipal
+      );
+      return true;
+    } catch (ex) {
+      return false;
+    }
+  },
+
+  /**
+   * Resolve partial URLs for a provider.
+   *
+   * Returns nsIURI object or null on failure
+   *
+   * @param {string} url
+   */
+  resolveUri: function resolveUri(url) {
+    try {
+      let fullURL = this.principal.URI.resolve(url);
+      return Services.io.newURI(fullURL, null, null);
+    } catch (ex) {
+      Cu.reportError("mozSocial: failed to resolve window URL: " + url + "; " + ex);
+      return null;
+    }
+  }
+};
+
+function getAddonIDFromOrigin(origin) {
+  let originUri = Services.io.newURI(origin, null, null);
+  return originUri.host + ID_SUFFIX;
+}
+
+function getPrefnameFromOrigin(origin) {
+  return "social.manifest." + SocialServiceInternal.getManifestPrefname(origin);
+}
+
+function AddonInstaller(sourceURI, aManifest, installCallback) {
+  aManifest.updateDate = Date.now();
+  // get the existing manifest for installDate
+  let manifest = SocialService.getManifestByOrigin(aManifest.origin);
+  let isNewInstall = !manifest;
+  if (manifest && manifest.installDate)
+    aManifest.installDate = manifest.installDate;
+  else
+    aManifest.installDate = aManifest.updateDate;
+
+  this.sourceURI = sourceURI;
+  this.install = function() {
+    let addon = this.addon;
+    if (isNewInstall) {
+      AddonManagerPrivate.callInstallListeners("onExternalInstall", null, addon, null, false);
+      AddonManagerPrivate.callAddonListeners("onInstalling", addon, false);
+    }
+
+    let string = Cc["@mozilla.org/supports-string;1"].
+                 createInstance(Ci.nsISupportsString);
+    string.data = JSON.stringify(aManifest);
+    Services.prefs.setComplexValue(getPrefnameFromOrigin(aManifest.origin), Ci.nsISupportsString, string);
+
+    if (isNewInstall) {
+      AddonManagerPrivate.callAddonListeners("onInstalled", addon);
+    }
+    installCallback(aManifest);
+  };
+  this.cancel = function() {
+    Services.prefs.clearUserPref(getPrefnameFromOrigin(aManifest.origin));
+  };
+  this.addon = new AddonWrapper(aManifest);
+}
+
+var SocialAddonProvider = {
+  startup: function() {},
+
+  shutdown: function() {},
+
+  updateAddonAppDisabledStates: function() {
+    // we wont bother with "enabling" services that are released from blocklist
+    for (let manifest of SocialServiceInternal.manifests) {
+      try {
+        if (ActiveProviders.has(manifest.origin)) {
+          let addon = new AddonWrapper(manifest);
+          if (addon.blocklistState != Ci.nsIBlocklistService.STATE_NOT_BLOCKED) {
+            SocialService.disableProvider(manifest.origin);
+          }
+        }
+      } catch (e) {
+        Cu.reportError(e);
+      }
+    }
+  },
+
+  getAddonByID: function(aId, aCallback) {
+    for (let manifest of SocialServiceInternal.manifests) {
+      if (aId == getAddonIDFromOrigin(manifest.origin)) {
+        aCallback(new AddonWrapper(manifest));
+        return;
+      }
+    }
+    aCallback(null);
+  },
+
+  getAddonsByTypes: function(aTypes, aCallback) {
+    if (aTypes && aTypes.indexOf(ADDON_TYPE_SERVICE) == -1) {
+      aCallback([]);
+      return;
+    }
+    aCallback([...SocialServiceInternal.manifests].map(a => new AddonWrapper(a)));
+  },
+
+  removeAddon: function(aAddon, aCallback) {
+    AddonManagerPrivate.callAddonListeners("onUninstalling", aAddon, false);
+    aAddon.pendingOperations |= AddonManager.PENDING_UNINSTALL;
+    Services.prefs.clearUserPref(getPrefnameFromOrigin(aAddon.manifest.origin));
+    aAddon.pendingOperations -= AddonManager.PENDING_UNINSTALL;
+    AddonManagerPrivate.callAddonListeners("onUninstalled", aAddon);
+    SocialService._notifyProviderListeners("provider-uninstalled", aAddon.manifest.origin);
+    if (aCallback)
+      schedule(aCallback);
+  }
+};
+
+
+function AddonWrapper(aManifest) {
+  this.manifest = aManifest;
+  this.id = getAddonIDFromOrigin(this.manifest.origin);
+  this._pending = AddonManager.PENDING_NONE;
+}
+AddonWrapper.prototype = {
+  get type() {
+    return ADDON_TYPE_SERVICE;
+  },
+
+  get appDisabled() {
+    return this.blocklistState == Ci.nsIBlocklistService.STATE_BLOCKED;
+  },
+
+  set softDisabled(val) {
+    this.userDisabled = val;
+  },
+
+  get softDisabled() {
+    return this.userDisabled;
+  },
+
+  get isCompatible() {
+    return true;
+  },
+
+  get isPlatformCompatible() {
+    return true;
+  },
+
+  get scope() {
+    return AddonManager.SCOPE_PROFILE;
+  },
+
+  get foreignInstall() {
+    return false;
+  },
+
+  isCompatibleWith: function(appVersion, platformVersion) {
+    return true;
+  },
+
+  get providesUpdatesSecurely() {
+    return true;
+  },
+
+  get blocklistState() {
+    return Services.blocklist.getAddonBlocklistState(this);
+  },
+
+  get blocklistURL() {
+    return Services.blocklist.getAddonBlocklistURL(this);
+  },
+
+  get screenshots() {
+    return [];
+  },
+
+  get pendingOperations() {
+    return this._pending || AddonManager.PENDING_NONE;
+  },
+  set pendingOperations(val) {
+    this._pending = val;
+  },
+
+  get operationsRequiringRestart() {
+    return AddonManager.OP_NEEDS_RESTART_NONE;
+  },
+
+  get size() {
+    return null;
+  },
+
+  get permissions() {
+    let permissions = 0;
+    // any "user defined" manifest can be removed
+    if (Services.prefs.prefHasUserValue(getPrefnameFromOrigin(this.manifest.origin)))
+      permissions = AddonManager.PERM_CAN_UNINSTALL;
+    if (!this.appDisabled) {
+      if (this.userDisabled) {
+        permissions |= AddonManager.PERM_CAN_ENABLE;
+      } else {
+        permissions |= AddonManager.PERM_CAN_DISABLE;
+      }
+    }
+    return permissions;
+  },
+
+  findUpdates: function(listener, reason, appVersion, platformVersion) {
+    if ("onNoCompatibilityUpdateAvailable" in listener)
+      listener.onNoCompatibilityUpdateAvailable(this);
+    if ("onNoUpdateAvailable" in listener)
+      listener.onNoUpdateAvailable(this);
+    if ("onUpdateFinished" in listener)
+      listener.onUpdateFinished(this);
+  },
+
+  get isActive() {
+    return ActiveProviders.has(this.manifest.origin);
+  },
+
+  get name() {
+    return this.manifest.name;
+  },
+  get version() {
+    return this.manifest.version ? this.manifest.version.toString() : "";
+  },
+
+  get iconURL() {
+    return this.manifest.icon32URL ? this.manifest.icon32URL : this.manifest.iconURL;
+  },
+  get icon64URL() {
+    return this.manifest.icon64URL;
+  },
+  get icons() {
+    let icons = {
+      16: this.manifest.iconURL
+    };
+    if (this.manifest.icon32URL)
+      icons[32] = this.manifest.icon32URL;
+    if (this.manifest.icon64URL)
+      icons[64] = this.manifest.icon64URL;
+    return icons;
+  },
+
+  get description() {
+    return this.manifest.description;
+  },
+  get homepageURL() {
+    return this.manifest.homepageURL;
+  },
+  get defaultLocale() {
+    return this.manifest.defaultLocale;
+  },
+  get selectedLocale() {
+    return this.manifest.selectedLocale;
+  },
+
+  get installDate() {
+    return this.manifest.installDate ? new Date(this.manifest.installDate) : null;
+  },
+  get updateDate() {
+    return this.manifest.updateDate ? new Date(this.manifest.updateDate) : null;
+  },
+
+  get creator() {
+    return new AddonManagerPrivate.AddonAuthor(this.manifest.author);
+  },
+
+  get userDisabled() {
+    return this.appDisabled || !ActiveProviders.has(this.manifest.origin);
+  },
+
+  set userDisabled(val) {
+    if (val == this.userDisabled)
+      return val;
+    if (val) {
+      SocialService.disableProvider(this.manifest.origin);
+    } else if (!this.appDisabled) {
+      SocialService.enableProvider(this.manifest.origin);
+    }
+    return val;
+  },
+
+  uninstall: function(aCallback) {
+    let prefName = getPrefnameFromOrigin(this.manifest.origin);
+    if (Services.prefs.prefHasUserValue(prefName)) {
+      if (ActiveProviders.has(this.manifest.origin)) {
+        SocialService.disableProvider(this.manifest.origin, function() {
+          SocialAddonProvider.removeAddon(this, aCallback);
+        }.bind(this));
+      } else {
+        SocialAddonProvider.removeAddon(this, aCallback);
+      }
+    } else {
+      schedule(aCallback);
+    }
+  },
+
+  cancelUninstall: function() {
+    this._pending -= AddonManager.PENDING_UNINSTALL;
+    AddonManagerPrivate.callAddonListeners("onOperationCancelled", this);
+  }
+};
+
+
+AddonManagerPrivate.registerProvider(SocialAddonProvider, [
+  new AddonManagerPrivate.AddonType(ADDON_TYPE_SERVICE, URI_EXTENSION_STRINGS,
+                                    STRING_TYPE_NAME,
+                                    AddonManager.VIEW_TYPE_LIST, 10000)
+]);
diff --git a/browser/modules/moz.build b/browser/modules/moz.build
index a7bbbc258..852a4c911 100644
--- a/browser/modules/moz.build
+++ b/browser/modules/moz.build
@@ -35,6 +35,8 @@ EXTRA_JS_MODULES += [
     'Sanitizer.jsm',
     'SelfSupportBackend.jsm',
     'SitePermissions.jsm',
+    'Social.jsm',
+    'SocialService.jsm',
     'TransientPrefs.jsm',
     'URLBarZoom.jsm',
     'webrtcUI.jsm',
diff --git a/browser/themes/linux/browser.css b/browser/themes/linux/browser.css
index 3e6b81512..73d3844a2 100644
--- a/browser/themes/linux/browser.css
+++ b/browser/themes/linux/browser.css
@@ -1172,6 +1172,56 @@ html|span.ac-emphasize-text-url {
   -moz-image-region: rect(0, 48px, 16px, 32px);
 }
 
+/* social share panel */
+%include ../shared/social/social.inc.css
+
+.social-share-frame {
+  border-top: 1px solid #f8f8f8;
+  width: 756px;
+  height: 150px;
+}
+
+#share-container {
+  min-width: 756px;
+  background-color: white;
+  background-repeat: no-repeat;
+  background-position: center center;
+}
+#share-container[loading] {
+  background-image: url(chrome://browser/skin/tabbrowser/pendingpaint.png);
+}
+#share-container > browser {
+  transition: opacity 150ms ease-in-out;
+  opacity: 1;
+}
+#share-container[loading] > browser {
+  opacity: 0;
+}
+
+.social-share-toolbar {
+  border-bottom: 1px solid #dedede;
+  padding: 2px;
+}
+
+#social-share-provider-buttons {
+  padding: 0;
+  margin: 0;
+}
+
+.share-provider-button {
+  padding: 5px;
+  margin: 2px;
+}
+
+.share-provider-button > .toolbarbutton-text {
+  display: none;
+}
+.share-provider-button > .toolbarbutton-icon {
+  width: 16px;
+  min-height: 16px;
+  max-height: 16px;
+}
+
 /* bookmarks menu-button */
 
 #bookmarks-menu-button[cui-areatype="toolbar"] > .toolbarbutton-menubutton-dropmarker {
diff --git a/browser/themes/linux/customizableui/panelUI.css b/browser/themes/linux/customizableui/panelUI.css
index 0037b5634..289faa085 100644
--- a/browser/themes/linux/customizableui/panelUI.css
+++ b/browser/themes/linux/customizableui/panelUI.css
@@ -49,6 +49,14 @@
   padding-inline-start: 0;
 }
 
+/* subviewbutton entries for social sidebars have images that come from external
+/* sources, and are not guaranteed to be the size we want, so force the size on
+/* those icons. */
+toolbarbutton.social-provider-menuitem > .toolbarbutton-icon {
+  width: 16px;
+  height: 16px;
+}
+
 .subviewbutton:-moz-any([image],[targetURI],.cui-withicon, .restoreallitem, .bookmark-item)[checked="true"] > .toolbarbutton-icon {
   visibility: hidden;
 }
diff --git a/browser/themes/linux/jar.mn b/browser/themes/linux/jar.mn
index 189027812..0bf023f35 100644
--- a/browser/themes/linux/jar.mn
+++ b/browser/themes/linux/jar.mn
@@ -81,6 +81,10 @@ browser.jar:
 * skin/classic/browser/preferences/in-content/preferences.css (preferences/in-content/preferences.css)
 * skin/classic/browser/preferences/in-content/dialog.css      (preferences/in-content/dialog.css)
   skin/classic/browser/preferences/applications.css   (preferences/applications.css)
+  skin/classic/browser/social/services-16.png         (social/services-16.png)
+  skin/classic/browser/social/services-64.png         (social/services-64.png)
+  skin/classic/browser/social/share-button.png        (social/share-button.png)
+  skin/classic/browser/social/share-button-active.png (social/share-button-active.png)
   skin/classic/browser/tabbrowser/alltabs.png         (tabbrowser/alltabs.png)
   skin/classic/browser/tabbrowser/alltabs-inverted.png (tabbrowser/alltabs-inverted.png)
   skin/classic/browser/tabbrowser/newtab.svg                (tabbrowser/newtab.svg)
diff --git a/browser/themes/osx/browser.css b/browser/themes/osx/browser.css
index 5a83c74b2..e8ac9163e 100644
--- a/browser/themes/osx/browser.css
+++ b/browser/themes/osx/browser.css
@@ -808,6 +808,10 @@ toolbar .toolbarbutton-1 > .toolbarbutton-menubutton-dropmarker > .dropmarker-ic
     -moz-image-region: rect(18px, 288px, 36px, 270px);
   }
 
+  #social-share-button@toolbarButtonPressed@ {
+    -moz-image-region: rect(18px, 306px, 36px, 288px);
+  }
+
   #characterencoding-button@toolbarButtonPressed@ {
     -moz-image-region: rect(18px, 324px, 36px, 306px);
   }
@@ -963,6 +967,10 @@ toolbar .toolbarbutton-1 > .toolbarbutton-menubutton-dropmarker > .dropmarker-ic
     -moz-image-region: rect(36px, 576px, 72px, 540px);
   }
 
+  #social-share-button@toolbarButtonPressed@ {
+    -moz-image-region: rect(36px, 612px, 72px, 576px);
+  }
+
   #characterencoding-button@toolbarButtonPressed@ {
     -moz-image-region: rect(36px, 648px, 72px, 612px);
   }
@@ -2021,6 +2029,59 @@ html|span.ac-emphasize-text-url {
   -moz-image-region: rect(0, 48px, 16px, 32px);
 }
 
+/* social share panel */
+.social-share-frame {
+  border-top: 1px solid #f8f8f8;
+  min-width: 756px;
+  height: 150px;
+  /* we resize our panels dynamically, make it look nice */
+}
+
+#share-container {
+  min-width: 756px;
+  background-repeat: no-repeat;
+  background-position: center center;
+}
+#share-container[loading] {
+  background-image: url(chrome://browser/skin/tabbrowser/pendingpaint.png);
+}
+#share-container > browser {
+  transition: opacity 150ms ease-in-out;
+  opacity: 1;
+}
+#share-container[loading] > browser {
+  opacity: 0;
+}
+
+#manage-share-providers {
+  -moz-image-region: rect(18px, 468px, 36px, 450px);
+}
+
+.social-share-toolbar {
+  border-bottom: 1px solid #dedede;
+  padding: 2px;
+}
+
+#social-share-provider-buttons {
+  padding: 0;
+  margin: 0;
+}
+
+.share-provider-button {
+  padding: 5px;
+  margin: 2px;
+}
+
+.share-provider-button > .toolbarbutton-text {
+  display: none;
+}
+
+.share-provider-button > .toolbarbutton-icon {
+  width: 16px;
+  min-height: 16px;
+  max-height: 16px;
+}
+
 /* BOOKMARKING PANEL */
 #editBookmarkPanelStarIcon {
   list-style-image: url("chrome://browser/skin/places/starred48.png");
@@ -3121,6 +3182,33 @@ menulist.translate-infobar-element > .menulist-dropmarker {
   border-radius: 1px;
 }
 
+/* Share */
+%include ../shared/social/social.inc.css
+
+#social-share-panel {
+  min-height: 100px;
+  min-width: 300px;
+  transition: height .3s ease-in-out, width .3s ease-in-out;
+}
+
+#share-container,
+.social-share-frame {
+  border-top-left-radius: 0;
+  border-bottom-left-radius: inherit;
+  border-top-right-radius: 0;
+  border-bottom-right-radius: inherit;
+}
+
+#social-share-panel > .social-share-toolbar {
+  border-top-left-radius: inherit;
+  border-top-right-radius: inherit;
+}
+
+#social-share-provider-buttons {
+  border-top-left-radius: inherit;
+  border-top-right-radius: inherit;
+}
+
 /* Customization mode */
 
 %include ../shared/customizableui/customizeMode.inc.css
diff --git a/browser/themes/osx/jar.mn b/browser/themes/osx/jar.mn
index 27802843d..98ba4e6ea 100644
--- a/browser/themes/osx/jar.mn
+++ b/browser/themes/osx/jar.mn
@@ -124,6 +124,10 @@ browser.jar:
 * skin/classic/browser/preferences/in-content/preferences.css (preferences/in-content/preferences.css)
 * skin/classic/browser/preferences/in-content/dialog.css      (preferences/in-content/dialog.css)
   skin/classic/browser/preferences/applications.css         (preferences/applications.css)
+  skin/classic/browser/social/services-16.png               (social/services-16.png)
+  skin/classic/browser/social/services-16@2x.png            (social/services-16@2x.png)
+  skin/classic/browser/social/services-64.png               (social/services-64.png)
+  skin/classic/browser/social/services-64@2x.png            (social/services-64@2x.png)
   skin/classic/browser/tabbrowser/alltabs-box-bkgnd-icon.png             (tabbrowser/alltabs-box-bkgnd-icon.png)
   skin/classic/browser/tabbrowser/alltabs-box-bkgnd-icon-inverted.png    (tabbrowser/alltabs-box-bkgnd-icon-inverted.png)
   skin/classic/browser/tabbrowser/alltabs-box-bkgnd-icon-inverted@2x.png (tabbrowser/alltabs-box-bkgnd-icon-inverted@2x.png)
diff --git a/browser/themes/shared/aboutProviderDirectory.css b/browser/themes/shared/aboutProviderDirectory.css
new file mode 100644
index 000000000..73e570aad
--- /dev/null
+++ b/browser/themes/shared/aboutProviderDirectory.css
@@ -0,0 +1,30 @@
+%include aboutSocialError.css
+
+body {
+  width: 310px;
+  margin: 1em auto;
+}
+
+#message-box {
+  margin-top: 2em;
+  background: url('chrome://global/skin/icons/information-24.png') no-repeat left 4px;
+  padding-inline-start: 30px;
+}
+
+#activation-frame {
+  border: none;
+  margin: 0;
+  width: 310px;
+  height: 200px;
+}
+#activation > p {
+  width: 100%;
+  text-align: center;
+  margin: 0;
+  line-height: 2em;
+}
+.link {
+  text-decoration: none;
+  color: -moz-nativehyperlinktext;
+  cursor: pointer;
+}
diff --git a/browser/themes/shared/browser.inc b/browser/themes/shared/browser.inc
index 81caf94d6..c57b59237 100644
--- a/browser/themes/shared/browser.inc
+++ b/browser/themes/shared/browser.inc
@@ -2,7 +2,7 @@
 
 % Note that zoom-reset-button is a bit different since it doesn't use an image and thus has the image with display: none.
 %define nestedButtons #zoom-out-button, #zoom-reset-button, #zoom-in-button, #cut-button, #copy-button, #paste-button
-%define primaryToolbarButtons #back-button, #forward-button, #home-button, #print-button, #downloads-button, #bookmarks-menu-button, #new-tab-button, #new-window-button, #fullscreen-button, #sync-button, #feed-button, #open-file-button, #find-button, #developer-button, #preferences-button, #privatebrowsing-button, #save-page-button, #add-ons-button, #history-panelmenu, #nav-bar-overflow-button, #PanelUI-menu-button, #characterencoding-button, #email-link-button, #sidebar-button, @nestedButtons@, #e10s-button, #panic-button, #webide-button, #containers-panelmenu
+%define primaryToolbarButtons #back-button, #forward-button, #home-button, #print-button, #downloads-button, #bookmarks-menu-button, #new-tab-button, #new-window-button, #fullscreen-button, #sync-button, #feed-button, #social-share-button, #open-file-button, #find-button, #developer-button, #preferences-button, #privatebrowsing-button, #save-page-button, #add-ons-button, #history-panelmenu, #nav-bar-overflow-button, #PanelUI-menu-button, #characterencoding-button, #email-link-button, #sidebar-button, @nestedButtons@, #e10s-button, #panic-button, #webide-button, #containers-panelmenu
 
 %ifdef XP_MACOSX
 % Prior to 10.7 there wasn't a native fullscreen button so we use #restore-button to exit fullscreen
diff --git a/browser/themes/shared/customizableui/panelUI.inc.css b/browser/themes/shared/customizableui/panelUI.inc.css
index ba36da995..b0bb05415 100644
--- a/browser/themes/shared/customizableui/panelUI.inc.css
+++ b/browser/themes/shared/customizableui/panelUI.inc.css
@@ -951,6 +951,7 @@ panelview .toolbarbutton-1,
 .subviewbutton,
 .widget-overflow-list .toolbarbutton-1,
 .panelUI-grid .toolbarbutton-1 > .toolbarbutton-menubutton-button,
+.share-provider-button,
 .toolbaritem-combined-buttons@inAnyPanel@ > toolbarbutton {
   -moz-appearance: none;
   padding: 0 6px;
@@ -963,6 +964,7 @@ panelview .toolbarbutton-1,
 panelview .toolbarbutton-1,
 .subviewbutton,
 .widget-overflow-list .toolbarbutton-1,
+.share-provider-button,
 .toolbaritem-combined-buttons@inAnyPanel@ > toolbarbutton {
   border-width: 1px;
 }
@@ -1036,6 +1038,7 @@ panelview .toolbarbutton-1@buttonStateHover@,
 toolbarbutton.subviewbutton@buttonStateHover@,
 menu.subviewbutton@menuStateHover@,
 menuitem.subviewbutton@menuStateHover@,
+.share-provider-button@buttonStateHover@:not([checked="true"]),
 .widget-overflow-list .toolbarbutton-1@buttonStateHover@,
 .toolbaritem-combined-buttons@inAnyPanel@ > toolbarbutton@buttonStateHover@ {
   background-color: var(--arrowpanel-dimmed);
@@ -1050,6 +1053,7 @@ panelview .toolbarbutton-1:-moz-any(@buttonStateActive@,[checked=true]),
 toolbarbutton.subviewbutton@buttonStateActive@,
 menu.subviewbutton@menuStateActive@,
 menuitem.subviewbutton@menuStateActive@,
+.share-provider-button:-moz-any(@buttonStateActive@,[checked=true]),
 .widget-overflow-list .toolbarbutton-1@buttonStateActive@,
 .toolbaritem-combined-buttons@inAnyPanel@ > toolbarbutton@buttonStateActive@ {
   background-color: var(--arrowpanel-dimmed-further);
diff --git a/browser/themes/shared/jar.inc.mn b/browser/themes/shared/jar.inc.mn
index b5cdf246a..dcc1e9dd9 100644
--- a/browser/themes/shared/jar.inc.mn
+++ b/browser/themes/shared/jar.inc.mn
@@ -10,7 +10,9 @@
   skin/classic/browser/aboutNetError.css                       (../shared/aboutNetError.css)
   skin/classic/browser/blockedSite.css                         (../shared/blockedSite.css)
   skin/classic/browser/error-pages.css                         (../shared/error-pages.css)
+* skin/classic/browser/aboutProviderDirectory.css              (../shared/aboutProviderDirectory.css)
 * skin/classic/browser/aboutSessionRestore.css                 (../shared/aboutSessionRestore.css)
+  skin/classic/browser/aboutSocialError.css                    (../shared/aboutSocialError.css)
   skin/classic/browser/aboutTabCrashed.css                     (../shared/aboutTabCrashed.css)
   skin/classic/browser/aboutWelcomeBack.css                    (../shared/aboutWelcomeBack.css)
   skin/classic/browser/content-contextmenu.svg                 (../shared/content-contextmenu.svg)
@@ -63,6 +65,7 @@
 * skin/classic/browser/identity-icon.svg                       (../shared/identity-block/identity-icon.svg)
   skin/classic/browser/info.svg                                (../shared/info.svg)
 * skin/classic/browser/menuPanel.svg                           (../shared/menuPanel.svg)
+* skin/classic/browser/menuPanel-small.svg                     (../shared/menuPanel-small.svg)
 * skin/classic/browser/notification-icons.svg                  (../shared/notification-icons.svg)
 * skin/classic/browser/tracking-protection-16.svg              (../shared/identity-block/tracking-protection-16.svg)
   skin/classic/browser/newtab/close.png                        (../shared/newtab/close.png)
@@ -97,6 +100,8 @@
   skin/classic/browser/search-indicator-magnifying-glass.svg   (../shared/search/search-indicator-magnifying-glass.svg)
   skin/classic/browser/search-arrow-go.svg                     (../shared/search/search-arrow-go.svg)
   skin/classic/browser/gear.svg                                (../shared/search/gear.svg)
+  skin/classic/browser/social/gear_default.png                 (../shared/social/gear_default.png)
+  skin/classic/browser/social/gear_clicked.png                 (../shared/social/gear_clicked.png)
   skin/classic/browser/tabbrowser/connecting.png               (../shared/tabbrowser/connecting.png)
   skin/classic/browser/tabbrowser/connecting@2x.png            (../shared/tabbrowser/connecting@2x.png)
   skin/classic/browser/tabbrowser/crashed.svg                  (../shared/tabbrowser/crashed.svg)
diff --git a/browser/themes/shared/menuPanel-small.svg b/browser/themes/shared/menuPanel-small.svg
new file mode 100644
index 000000000..db28992e2
--- /dev/null
+++ b/browser/themes/shared/menuPanel-small.svg
@@ -0,0 +1,16 @@
+<?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/. -->
+<svg xmlns="http://www.w3.org/2000/svg"
+     width="96" height="16" viewBox="0 0 96 16"
+     class="fieldtext">
+#include icon-colors.inc.svg
+
+  <path id="placeholder" d="M8,16a8,8,0,1,1,8-8A8,8,0,0,1,8,16ZM12,4H4v8h8V4ZM5,9.939V6.061L6.939,8ZM9.939,11H6.061L8,9.061ZM11,11h0Zm0-4.939V9.939L9.061,8ZM11,5h0ZM6.061,5H9.939L8,6.939Z"/>
+  <path id="cut" d="M29.63,15a2.426,2.426,0,0,1-2.282-1.277c-0.761-1.109-1.694-2.488-1.694-2.488S25,10.329,24.549,9.623a1.05,1.05,0,0,0-1.106-.538S20.6,4.437,20.124,3.706C19.465,2.689,20.7,1,20.7,1l4.4,7.044a19.333,19.333,0,0,0,1.867,2.286c0.519,0.4,1.382-.373,2.8.908C31.7,12.984,31.048,15,29.63,15ZM29.423,12.11c-0.933-1.042-1.728-.908-1.936-0.639a2.093,2.093,0,0,0,.38,1.748,1.612,1.612,0,0,0,1.383.74C29.838,13.959,30.356,13.153,29.423,12.11ZM25.582,7.372L24.4,5.6,27.276,1s1.233,1.69.575,2.708C27.568,4.142,26.445,5.967,25.582,7.372Zm-4.576,2.956A12.482,12.482,0,0,0,22.43,8.645l0.826,1.239c-0.428.65-.937,1.352-0.937,1.352s-0.933,1.378-1.694,2.488A2.426,2.426,0,0,1,18.344,15c-1.417,0-2.074-2.017-.138-3.765C19.624,9.956,20.487,10.732,21.006,10.329ZM18.551,12.11c-0.933,1.042-.415,1.849.173,1.849a1.612,1.612,0,0,0,1.383-.74,2.093,2.093,0,0,0,.38-1.748C20.28,11.2,19.485,11.068,18.551,12.11Z"/>
+  <path id="copy" d="M46,15H40a1,1,0,0,1-1-1V6a1,1,0,0,1,1-1h4.953C45,5,47,6.984,47,7.047V14A1,1,0,0,1,46,15ZM44,6V8h2ZM38,4.886V11H34a1,1,0,0,1-1-1V2a1,1,0,0,1,1-1h4.953C39,1,41,2.985,41,3.047v1.34H38.5A0.5,0.5,0,0,0,38,4.886ZM38,2V4h2Z"/>
+  <path id="paste" d="M59.5,15h-7A1.5,1.5,0,0,1,51,13.5v-9A1.5,1.5,0,0,1,52.5,3H54a2,2,0,1,1,4,0h1.5A1.5,1.5,0,0,1,61,4.5v9A1.5,1.5,0,0,1,59.5,15ZM58.682,4L57.61,3.5a1.613,1.613,0,0,0-3.219,0L53.318,4,52.781,5h6.437ZM58.82,5.688H54.074L51.059,7.428l2.849,4.935,6.574-3.8Z"/>
+  <rect id="zoomOut" x="67" y="7" width="10" height="2"/>
+  <path id="zoomIn" d="M93,9H89v4H87V9H83V7h4V3h2V7h4V9Z"/>
+</svg>
diff --git a/browser/themes/shared/menupanel.inc.css b/browser/themes/shared/menupanel.inc.css
index 266e1c83e..7517e4df0 100644
--- a/browser/themes/shared/menupanel.inc.css
+++ b/browser/themes/shared/menupanel.inc.css
@@ -63,6 +63,11 @@ toolbarpaletteitem[place="palette"] > #feed-button {
   -moz-image-region: rect(0px, 416px, 32px, 384px);
 }
 
+#social-share-button[cui-areatype="menu-panel"],
+toolbarpaletteitem[place="palette"] > #social-share-button {
+  -moz-image-region: rect(0px, 448px, 32px, 416px);
+}
+
 #characterencoding-button[cui-areatype="menu-panel"],
 toolbarpaletteitem[place="palette"] > #characterencoding-button {
   -moz-image-region: rect(0px, 480px, 32px, 448px);
@@ -171,3 +176,8 @@ toolbarpaletteitem[place="palette"] > #zoom-controls > #zoom-in-button {
   -moz-image-region: rect(0px, 96px, 16px, 80px);
 }
 
+#add-share-provider {
+  list-style-image: url(chrome://browser/skin/menuPanel-small.svg);
+  -moz-image-region: rect(0px, 96px, 16px, 80px);
+}
+
diff --git a/browser/themes/shared/notification-icons.inc.css b/browser/themes/shared/notification-icons.inc.css
index 86dce73a1..595e911b6 100644
--- a/browser/themes/shared/notification-icons.inc.css
+++ b/browser/themes/shared/notification-icons.inc.css
@@ -271,6 +271,28 @@ html|*#webRTC-previewVideo {
   }
 }
 
+/* SOCIAL API */
+
+.popup-notification-icon[popupid="servicesInstall"] {
+  list-style-image: url(chrome://browser/skin/social/services-64.png);
+}
+
+.service-icon {
+  list-style-image: url(chrome://browser/skin/social/services-16.png);
+}
+
+%ifdef XP_MACOSX
+@media (min-resolution: 1.1dppx) {
+  .popup-notification-icon[popupid="servicesInstall"] {
+    list-style-image: url(chrome://browser/skin/social/services-64@2x.png);
+  }
+
+  .service-icon {
+    list-style-image: url(chrome://browser/skin/social/services-16@2x.png);
+  }
+}
+%endif
+
 /* TRANSLATION */
 
 .translation-icon {
diff --git a/browser/themes/shared/social/gear_clicked.png b/browser/themes/shared/social/gear_clicked.png
new file mode 100644
index 000000000..7c93aa767
--- /dev/null
+++ b/browser/themes/shared/social/gear_clicked.png
diff --git a/browser/themes/shared/social/gear_default.png b/browser/themes/shared/social/gear_default.png
new file mode 100644
index 000000000..2a9c8e198
--- /dev/null
+++ b/browser/themes/shared/social/gear_default.png
diff --git a/browser/themes/shared/social/social.inc.css b/browser/themes/shared/social/social.inc.css
new file mode 100644
index 000000000..31389b215
--- /dev/null
+++ b/browser/themes/shared/social/social.inc.css
@@ -0,0 +1,23 @@
+%if 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/. */
+%endif
+
+#manage-share-providers {
+  list-style-image: url("chrome://browser/skin/Toolbar.png");
+  -moz-image-region: rect(0, 468px, 18px, 450px);
+}
+
+#manage-share-providers > .toolbarbutton-icon {
+  min-height: 18px;
+  min-width: 18px;
+}
+
+.social-panel > .panel-arrowcontainer > .panel-arrowcontent {
+  padding: 0;
+}
+/* fixup corners for share panel */
+.social-panel > .social-panel-frame {
+  border-radius: inherit;
+}
diff --git a/browser/themes/shared/toolbarbuttons.inc.css b/browser/themes/shared/toolbarbuttons.inc.css
index c043b8192..b3b3ffcf8 100644
--- a/browser/themes/shared/toolbarbuttons.inc.css
+++ b/browser/themes/shared/toolbarbuttons.inc.css
@@ -64,6 +64,10 @@ toolbar[brighttext] #bookmarks-menu-button > .toolbarbutton-menubutton-dropmarke
   -moz-image-region: rect(0, 288px, 18px, 270px);
 }
 
+#social-share-button[cui-areatype="toolbar"] {
+  -moz-image-region: rect(0px, 306px, 18px, 288px);
+}
+
 #characterencoding-button[cui-areatype="toolbar"]{
   -moz-image-region: rect(0, 324px, 18px, 306px);
 }
@@ -238,6 +242,10 @@ toolbar[brighttext] #bookmarks-menu-button > .toolbarbutton-menubutton-dropmarke
     -moz-image-region: rect(0, 576px, 36px, 540px);
   }
 
+  #social-share-button[cui-areatype="toolbar"] {
+    -moz-image-region: rect(0, 612px, 36px, 576px);
+  }
+
   #characterencoding-button[cui-areatype="toolbar"] {
     -moz-image-region: rect(0, 648px, 36px, 612px);
   }
diff --git a/browser/themes/windows/browser.css b/browser/themes/windows/browser.css
index b364dbc36..a0cdabfb2 100644
--- a/browser/themes/windows/browser.css
+++ b/browser/themes/windows/browser.css
@@ -1784,6 +1784,81 @@ html|span.ac-emphasize-text-url {
   -moz-image-region: rect(0, 48px, 16px, 32px);
 }
 
+/* social share panel */
+%include ../shared/social/social.inc.css
+
+.social-panel-frame {
+  border-radius: inherit;
+}
+
+.social-share-frame {
+  min-width: 756px;
+  height: 150px;
+}
+#share-container {
+  min-width: 756px;
+  background-color: white;
+  background-repeat: no-repeat;
+  background-position: center center;
+}
+#share-container[loading] {
+  background-image: url(chrome://browser/skin/tabbrowser/pendingpaint.png);
+}
+#share-container > browser {
+  transition: opacity 150ms ease-in-out;
+  opacity: 1;
+}
+#share-container[loading] > browser {
+  opacity: 0;
+}
+
+.social-share-toolbar {
+  border-bottom: 1px solid #e2e5e8;
+  padding: 2px;
+}
+
+#social-share-provider-buttons {
+  padding: 0;
+  margin: 0;
+}
+
+.share-provider-button {
+  padding: 5px;
+  margin: 2px;
+}
+
+.share-provider-button > .toolbarbutton-text {
+  display: none;
+}
+.share-provider-button > .toolbarbutton-icon {
+  width: 16px;
+  min-height: 16px;
+  max-height: 16px;
+}
+
+#social-share-panel {
+  min-height: 100px;
+  min-width: 766px;
+}
+
+#share-container,
+.social-share-frame {
+  border-top-left-radius: 0;
+  border-bottom-left-radius: inherit;
+  border-top-right-radius: 0;
+  border-bottom-right-radius: inherit;
+}
+
+#social-share-panel > .social-share-toolbar {
+  border-top-left-radius: inherit;
+  border-top-right-radius: inherit;
+}
+
+#social-share-provider-buttons {
+  border-top-left-radius: inherit;
+  border-top-right-radius: inherit;
+}
+
 /* bookmarks menu-button */
 
 #nav-bar #bookmarks-menu-button[cui-areatype="toolbar"]:not([overflowedItem=true]) > .toolbarbutton-menubutton-dropmarker > .dropmarker-icon {
diff --git a/browser/themes/windows/customizableui/panelUI.css b/browser/themes/windows/customizableui/panelUI.css
index a01a2f3e3..189a163f3 100644
--- a/browser/themes/windows/customizableui/panelUI.css
+++ b/browser/themes/windows/customizableui/panelUI.css
@@ -97,6 +97,14 @@ menuitem[type="checkbox"].subviewbutton {
   padding-inline-start: 0;
 }
 
+/* subviewbutton entries for social sidebars have images that come from external
+/* sources, and are not guaranteed to be the size we want, so force the size on
+/* those icons. */
+toolbarbutton.social-provider-menuitem > .toolbarbutton-icon {
+  width: 16px;
+  height: 16px;
+}
+
 .subviewbutton:-moz-any([image],[targetURI],.cui-withicon, .restoreallitem, .bookmark-item)[checked="true"] > .toolbarbutton-icon {
   visibility: hidden;
 }
diff --git a/browser/themes/windows/jar.mn b/browser/themes/windows/jar.mn
index e8db7eed2..410148645 100644
--- a/browser/themes/windows/jar.mn
+++ b/browser/themes/windows/jar.mn
@@ -109,6 +109,8 @@ browser.jar:
 * skin/classic/browser/preferences/in-content/preferences.css  (preferences/in-content/preferences.css)
 * skin/classic/browser/preferences/in-content/dialog.css       (preferences/in-content/dialog.css)
   skin/classic/browser/preferences/applications.css            (preferences/applications.css)
+  skin/classic/browser/social/services-16.png                  (social/services-16.png)
+  skin/classic/browser/social/services-64.png                  (social/services-64.png)
   skin/classic/browser/tabbrowser/newtab.svg                   (tabbrowser/newtab.svg)
   skin/classic/browser/tabbrowser/newtab-win7.svg              (tabbrowser/newtab-win7.svg)
   skin/classic/browser/tabbrowser/newtab-inverted.svg          (tabbrowser/newtab-inverted.svg)
author	Moonchild <mcwerewolf@gmail.com>	2018-05-25 20:45:48 +0000
committer	GitHub <noreply@github.com>	2018-05-25 20:45:48 +0000
commit	72bab89cf6c77c9ee95a977c306e6ce317b84835 (patch)
tree	ca3fcaa2a72700b85221b2fe75bb7d46d5d424ce /browser
parent	d5459982f0d1bab08b751dc140c4cbe047032617 (diff)
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