Bug 257722 - No visual feedback when clicking on scrollbarbutton in autocomplete popups (no depressed state), r=neil, SeaMonkey-only

xpfe/components/autocomplete/resources/content/autocomplete.css

@@ -13,6 +13,10 @@
   visibility: hidden;
 }
 
+.autocomplete-tree {
+  -moz-user-focus: ignore;
+}
+
 /* The following rule is here to fix bug 96899 (and now 117952).  
    Somehow trees create a situation
    in which a popupset flows itself as if its popup child is directly within it

xpfe/components/autocomplete/resources/content/autocomplete.xml

@@ -1612,8 +1612,6 @@
         this.clearSelection();
         this.input = null;
       </handler>
-
-      <handler event="mousedown" phase="capturing" preventdefault="true"/>
     </handlers>
   </binding>