fix borders

browser/base/skin/browser.css

@@ -37,7 +37,7 @@
  * ***** END LICENSE BLOCK ***** */
 
 @import url("chrome://communicator/skin/");
-
+@import url("chrome://communicator/skin/bookmarks/bookmarksToolbar.css");
 
 @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
 
@@ -215,12 +215,12 @@ menubutton:not([disabled="true"]):hover:active {
   border: 0px !important;
 }
 
-toolbarbutton:hover > stack > .toolbarbutton-menubutton-dropmarker {
+toolbarbutton:hover > stack > .toolbarbutton-menubutton-dropmarker:hover {
   -moz-image-region: rect(0 29px 15px 15px) !important;
 }
 
-toolbarbutton[disabled="true"] > stack > .toolbarbutton-menubutton-dropmarker,
+toolbarbutton[disabled="true"] > stack > .toolbarbutton-menubutton-dropmarker[disabled="true"],
-toolbarbutton[disabled="true"]:hover > stack > .toolbarbutton-menubutton-dropmarker {
+toolbarbutton[disabled="true"]:hover > stack > .toolbarbutton-menubutton-dropmarker[disabled="true"]:hover {
   -moz-image-region: rect(0 44px 15px 30px) !important;
 }