diff -r 000000000000 -r 6474c204b198 toolkit/mozapps/plugins/content/pluginFinderBinding.css
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/mozapps/plugins/content/pluginFinderBinding.css	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,18 @@
+/* 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/. */
+
+@namespace url(http://www.w3.org/1999/xhtml); /* set default namespace to HTML */
+
+/* This binding is specified separately from the others so that Linux distros can
+   override the default Mozilla plugin finder service with their own mechanism. */
+embed:-moz-type-unsupported,
+applet:-moz-type-unsupported,
+object:-moz-type-unsupported,
+embed:-moz-type-unsupported-platform,
+applet:-moz-type-unsupported-platform,
+object:-moz-type-unsupported-platform {
+    display: inline-block;
+    overflow: hidden;
+    -moz-binding: url('chrome://mozapps/content/plugins/pluginProblem.xml#pluginProblem') !important;
+}