diff --git a/xpfe/global/resources/skin/xul.css b/xpfe/global/resources/skin/xul.css
index 204e90e81999..bac37043090b 100644
--- a/xpfe/global/resources/skin/xul.css
+++ b/xpfe/global/resources/skin/xul.css
@@ -290,7 +290,7 @@ radiogroup
   }
 
 button, button.left {
-  user-focus: normal;
+  /* user-focus: normal; */
   behavior: url(resource:/chrome/xulBindings.xml#buttonleft);
 }