diff --git a/browser/themes/linux/browser.css b/browser/themes/linux/browser.css
index 163ff92c35c..7100cb7af1c 100644
--- a/browser/themes/linux/browser.css
+++ b/browser/themes/linux/browser.css
@@ -2068,15 +2068,6 @@ toolbarbutton.chevron > .toolbarbutton-icon {
 
 /* Social toolbar item */
 
-#social-provider-button {
-  -moz-image-region: rect(0, 16px, 16px, 0);
-  list-style-image: url(chrome://browser/skin/social/services-16.png);
-}
-
-#social-provider-button > .toolbarbutton-menu-dropmarker {
-  display: none;
-}
-
 .popup-notification-icon[popupid="servicesInstall"] {
   list-style-image: url(chrome://browser/skin/social/services-64.png);
 }
diff --git a/browser/themes/osx/browser.css b/browser/themes/osx/browser.css
index 896e89bc7f9..5c1b79936ab 100644
--- a/browser/themes/osx/browser.css
+++ b/browser/themes/osx/browser.css
@@ -4366,64 +4366,6 @@ menulist.translate-infobar-element > .menulist-dropmarker {
   border-radius: 1px;
 }
 
-/* === social toolbar button === */
-
-#social-toolbar-item > .toolbarbutton-1 {
-  margin-left: 0;
-  margin-right: 0;
-  border-top-left-radius: 0;
-  border-bottom-left-radius: 0;
-  border-top-right-radius: 0;
-  border-bottom-right-radius: 0;
-}
-
-#social-toolbar-item > .toolbarbutton-1:-moz-locale-dir(ltr) {
-  -moz-border-end-width: 0;
-}
-#social-toolbar-item > .toolbarbutton-1:last-child:-moz-locale-dir(ltr) {
-  -moz-border-end-width: 1px;
-}
-#social-toolbar-item > .toolbarbutton-1:-moz-locale-dir(rtl) {
-  -moz-border-start-width: 0;
-}
-#social-toolbar-item > .toolbarbutton-1:first-child:-moz-locale-dir(rtl) {
-  -moz-border-start-width: 1px;
-}
-
-#social-toolbar-item > .toolbarbutton-1:-moz-locale-dir(ltr):first-child,
-#social-toolbar-item > .toolbarbutton-1:-moz-locale-dir(rtl):last-child {
-  margin-left: 4px;
-  border-top-left-radius: 3px;
-  border-bottom-left-radius: 3px;
-}
-#social-toolbar-item > .toolbarbutton-1:-moz-locale-dir(rtl):first-child,
-#social-toolbar-item > .toolbarbutton-1:-moz-locale-dir(ltr):last-child {
-  margin-right: 4px;
-  border-top-right-radius: 3px;
-  border-bottom-right-radius: 3px;
-}
-
-#social-toolbar-item > toolbaritem {
-  margin: 0;
-}
-
-#social-provider-button {
-  list-style-image: url(chrome://browser/skin/social/services-16.png);
-}
-
-@media (min-resolution: 2dppx) {
-  #social-provider-button {
-    list-style-image: url(chrome://browser/skin/social/services-16@2x.png);
-  }
-  #social-provider-button > .toolbarbutton-icon {
-    width: 16px;
-  }
-}
-
-#social-provider-button > .toolbarbutton-menu-dropmarker {
-  display: none;
-}
-
 .popup-notification-icon[popupid="servicesInstall"] {
   list-style-image: url(chrome://browser/skin/social/services-64.png);
 }
diff --git a/browser/themes/windows/browser.css b/browser/themes/windows/browser.css
index 9a59218b7b1..d1de83a6193 100644
--- a/browser/themes/windows/browser.css
+++ b/browser/themes/windows/browser.css
@@ -623,7 +623,7 @@ toolbar[brighttext] .toolbarbutton-1 > .toolbarbutton-menubutton-dropmarker {
   -moz-padding-end: 5px;
 }
 
-#nav-bar .toolbarbutton-1[type=menu]:not(#back-button):not(#forward-button):not(#feed-button):not(#social-provider-button):not(#PanelUI-menu-button) {
+#nav-bar .toolbarbutton-1[type=menu]:not(#back-button):not(#forward-button):not(#feed-button):not(#PanelUI-menu-button) {
   padding-left: 5px;
   padding-right: 5px;
 }
@@ -698,7 +698,7 @@ toolbarbutton[sdk-button="true"][cui-areatype="toolbar"] > .toolbarbutton-icon {
   width: 32px;
 }
 
-#nav-bar .toolbarbutton-1[type=menu]:not(#back-button):not(#forward-button):not(#feed-button):not(#social-provider-button):not(#PanelUI-menu-button) > .toolbarbutton-icon,
+#nav-bar .toolbarbutton-1[type=menu]:not(#back-button):not(#forward-button):not(#feed-button):not(#PanelUI-menu-button) > .toolbarbutton-icon,
 #nav-bar .toolbarbutton-1[type=menu] > .toolbarbutton-text /* hack for add-ons that forcefully display the label */ {
   -moz-padding-end: 17px;
 }
@@ -2677,15 +2677,6 @@ notification[value="translation"] {
 
 /* Social toolbar item */
 
-#social-provider-button {
-  -moz-image-region: rect(0, 16px, 16px, 0);
-  list-style-image: url(chrome://browser/skin/social/services-16.png);
-}
-
-#social-provider-button > .toolbarbutton-menu-dropmarker {
-  display: none;
-}
-
 #switch-to-metro-button[cui-areatype="toolbar"] {
   list-style-image: url(chrome://browser/skin/Metro_Glyph.png);
 }