Revert "Remove the Social API"

19 files changed, 358 insertions, 1 deletions

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)