@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

menu#bookmarksMenu {
   -moz-binding: url("chrome://global/content/bindings/menu.xml#menu-iconic") !important;
}

menu#bookmarksMenu { 
  -moz-image-region: rect(0 240px 16px 224px) !important; list-style-image: url("chrome://cutemenus/content/res/mosaic.png") !important; 
}