diff --git a/mozilla/xpfe/browser/resources/content/pageInfo.xul b/mozilla/xpfe/browser/resources/content/pageInfo.xul
index 5cf631d5bcf..cfaef9cc908 100644
--- a/mozilla/xpfe/browser/resources/content/pageInfo.xul
+++ b/mozilla/xpfe/browser/resources/content/pageInfo.xul
@@ -87,7 +87,9 @@
       <tree id="forms_tree" class="inset" flex="1">
         <treecolgroup>
           <treecol flex="2"/>
+          <splitter class="tree-splitter"/>
           <treecol flex="1"/>
+          <splitter class="tree-splitter"/>
           <treecol flex="1"/>
         </treecolgroup>
         <treehead>