--- a/toolkit/content/widgets/toolbar.xml
+++ b/toolkit/content/widgets/toolbar.xml
@@ -164,17 +164,17 @@
             this._statusbar.label = this._originalStatusText;
           ]]>
         </handler>
         <handler event="DOMMenuItemActive">this._updateStatusText(event.target.statusText);</handler>
         <handler event="DOMMenuItemInactive">this._updateStatusText("");</handler>
     </handlers>
   </binding>
 
-  <binding id="toolbarpaletteitem" extends="xul:button">
+  <binding id="toolbarpaletteitem">
     <content>
       <xul:hbox class="toolbarpaletteitem-box" flex="1" xbl:inherits="type,place">
         <children/>
       </xul:hbox>
     </content>
   </binding>
 
   <binding id="toolbarpaletteitem-palette" extends="chrome://global/content/bindings/toolbar.xml#toolbarpaletteitem">

--- a/toolkit/content/xul.css
+++ b/toolkit/content/xul.css
@@ -316,16 +316,21 @@ toolbarpaletteitem {
   -moz-binding: url("chrome://global/content/bindings/toolbar.xml#toolbarpaletteitem");
 }
 
 toolbarpaletteitem[place="palette"] {
   -moz-box-orient: vertical;
   -moz-binding: url("chrome://global/content/bindings/toolbar.xml#toolbarpaletteitem-palette");
 }
 
+.toolbarpaletteitem-box {
+  /* Prevent children from getting events */
+  pointer-events: none;
+}
+
 /********* menubar ***********/
 
 menubar {
   -moz-binding: url("chrome://global/content/bindings/toolbar.xml#menubar");
 }
 
 /********* menu ***********/