diff --git a/toolkit/content/widgets/toolbar.xml b/toolkit/content/widgets/toolbar.xml
index 0480f166a0e..ef40bc01225 100644
--- a/toolkit/content/widgets/toolbar.xml
+++ b/toolkit/content/widgets/toolbar.xml
@@ -94,5 +94,6 @@
 
   <binding id="toolbarseparator" extends="chrome://global/content/widgets/toolbar.xml#toolbar-base"/>
 
+  <binding id="toolbarpaletteitem" extends="xul:button"/>
 </bindings>          
 
diff --git a/toolkit/content/xul.css b/toolkit/content/xul.css
index e49459ed3cb..5f7f78c0955 100644
--- a/toolkit/content/xul.css
+++ b/toolkit/content/xul.css
@@ -208,6 +208,10 @@ toolbarseparator {
   -moz-binding: url("chrome://global/content/widgets/toolbar.xml#toolbarseparator");
 }
 
+toolbarpaletteitem {
+  -moz-binding: url("chrome://global/content/widgets/toolbar.xml#toolbarpaletteitem");
+}
+
 /********* menubar ***********/
 
 menubar {