diff -r 000000000000 -r 6474c204b198 toolkit/themes/linux/global/preferences.css
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/themes/linux/global/preferences.css	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,62 @@
+/* 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/. */
+
+/* ===== preferences.css =====================================================
+  == Styles used by the XUL prefwindow element.
+  ======================================================================= */
+
+@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
+
+/* ::::: dialog ::::: */
+
+prefwindow {
+  padding: 0px;
+}
+
+prefpane {
+  padding: 8px;
+}
+
+prefwindow[type="child"] {
+  padding: 8px;
+}
+
+prefwindow[type="child"] > prefpane {
+  padding: 0px;
+}
+
+.prefWindow-dlgbuttons {
+  padding-bottom: 8px;
+  -moz-padding-start: 8px;
+  -moz-padding-end: 8px;
+}
+
+prefwindow[type="child"] .prefWindow-dlgbuttons {
+  padding: 0px;
+}
+
+radio[pane] {
+  -moz-appearance: none;
+  min-width: 4.5em;
+  margin: 0;
+  padding: 3px;
+  color: -moz-FieldText;
+}
+
+.paneSelector {
+  -moz-appearance: listbox;
+  margin: 8px 8px 0 8px;
+  padding: 0;
+}
+
+.paneButtonIcon {
+  width: 32px;
+  height: 32px;
+}
+
+radio[pane][selected="true"] {
+  background-color: Highlight;
+  color: HighlightText;
+}
+