--- a/toolkit/mozapps/extensions/content/extensions.xml
+++ b/toolkit/mozapps/extensions/content/extensions.xml
@@ -405,17 +405,17 @@
   </binding>
 
 
   <!-- Category item - an item in the category list. -->
   <binding id="category"
            extends="chrome://global/content/bindings/richlistbox.xml#richlistitem">
     <content align="center">
       <xul:image anonid="icon" class="category-icon"/>
-      <xul:label anonid="name" class="category-name" flex="1" xbl:inherits="value=name"/>
+      <xul:label anonid="name" class="category-name" crop="end" flex="1" xbl:inherits="value=name"/>
       <xul:label anonid="badge" class="category-badge" xbl:inherits="value=count"/>
     </content>
 
     <implementation>
       <constructor><![CDATA[
         if (!this.hasAttribute("count"))
           this.setAttribute("count", 0);
       ]]></constructor>