diff -r 000000000000 -r 6474c204b198 toolkit/themes/osx/help/help.css
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/themes/osx/help/help.css	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,102 @@
+/* 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/. */
+
+@import url("chrome://global/skin/");
+@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
+
+#HelpToolbar {
+  -moz-padding-start: 5px;
+}
+
+#HelpToolbar toolbarbutton {
+  min-width: 0px;
+  list-style-image: url("chrome://help/skin/Toolbar.png");
+  -moz-box-orient: horizontal !important;
+}
+
+#HelpToolbar toolbarbutton[type="menu-button"] {
+  margin: 0px;
+  padding: 0px;
+}
+
+/* this element contains the icon and the label */
+#HelpToolbar .toolbarbutton-menubutton-button {
+  margin: 0px !important;
+  padding: 0px !important;
+  border: 0px !important;
+}
+
+/* Hide labels for the toolbar because we really don't need them what with the
+   tooltips */
+#HelpToolbar .toolbarbutton-text {
+  display: none;
+}
+
+/* Set the minimum sidebar width so the help contents aren't squeezed together.*/
+#help-sidebar { min-width: 15em; width: 20em; max-width: 25em; }
+
+#help-back-button { -moz-image-region: rect(0px 24px 24px 0px); }
+#help-back-button:not([disabled="true"]):hover { -moz-image-region: rect(24px 24px 48px 0px); }
+#help-back-button[disabled="true"] { -moz-image-region: rect(48px 24px 72px 0px); }
+#help-back-button:not([disabled="true"]):hover:active { -moz-image-region: rect(72px 24px 96px 0px); }
+
+#help-forward-button { -moz-image-region: rect(0px 48px 24px 24px); }
+#help-forward-button:not([disabled="true"]):hover { -moz-image-region: rect(24px 48px 48px 24px); }
+#help-forward-button[disabled="true"] { -moz-image-region: rect(48px 48px 72px 24px); }
+#help-forward-button:not([disabled="true"]):hover:active { -moz-image-region: rect(72px 48px 96px 24px); }
+
+#help-home-button { -moz-image-region: rect(0px 72px 24px 48px); }
+#help-home-button:not([disabled="true"]):hover { -moz-image-region: rect(24px 72px 48px 48px); }
+#help-home-button[disabled="true"] { -moz-image-region: rect(48px 72px 72px 48px); }
+#help-home-button:not([disabled="true"]):hover:active { -moz-image-region: rect(72px 72px 96px 48px); }
+
+#help-print-button { -moz-image-region: rect(0px 96px 24px 72px); }
+#help-print-button:not([disabled="true"]):hover { -moz-image-region: rect(24px 96px 48px 72px); }
+#help-print-button[disabled="true"] { -moz-image-region: rect(48px 96px 72px 72px); }
+#help-print-button:not([disabled="true"]):hover:active { -moz-image-region: rect(72px 96px 96px 72px); }
+
+/* Style the back/forward dropmarks to connect them to the buttons */
+
+/* Style the back dropmark */
+
+#help-back-button > .toolbarbutton-menubutton-dropmarker {
+  margin-top: 3px;
+  list-style-image: url("chrome://help/skin/dropmark-nav.png");
+  -moz-image-region: rect(0px, 14px, 24px, 0px);
+}
+
+#help-back-button:hover > .toolbarbutton-menubutton-dropmarker {
+  -moz-image-region: rect(24px, 14px, 48px, 0px);
+}
+
+#help-back-button[disabled="true"] > .toolbarbutton-menubutton-dropmarker {
+  list-style-image: url("chrome://help/skin/dropmark-nav.png") !important;
+  -moz-image-region: rect(48px, 14px, 72px, 0px) !important;
+}
+
+#help-back-button:hover:active > .toolbarbutton-menubutton-dropmarker {
+  -moz-image-region: rect(72px, 14px, 96px, 0px);
+}
+
+/* Style the forward dropmark */
+
+#help-forward-button > .toolbarbutton-menubutton-dropmarker {
+  margin-top: 3px;
+  list-style-image: url("chrome://help/skin/dropmark-nav.png");
+  -moz-image-region: rect(0px, 14px, 24px, 0px);
+}
+#help-forward-button:hover > .toolbarbutton-menubutton-dropmarker {
+  -moz-image-region: rect(24px, 14px, 48px, 0px);
+}
+#help-forward-button[disabled="true"] > .toolbarbutton-menubutton-dropmarker {
+  list-style-image: url("chrome://help/skin/dropmark-nav.png") !important;
+  -moz-image-region: rect(48px, 14px, 72px, 0px) !important;
+}
+#help-forward-button:hover:active > .toolbarbutton-menubutton-dropmarker {
+  -moz-image-region: rect(72px, 14px, 96px, 0px);
+}
+
+#helpsidebar-splitter {
+  border-right: 1px solid #bebebe;
+}