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

@-moz-document url(chrome://browser/content/browser.xul) {
	
	panel[type="autocomplete-richlistbox"]:not(#PopupAutoComplete) richlistitem + richlistitem:not([collapse="true"]),
	#PopupAutoCompleteRichResult[autocompleteinput="urlbar"] richlistitem + richlistitem:not([collapse="true"]) {
	  border-top: 1px solid lightgrey !important;
	  border-bottom: 1px solid transparent !important;
	}

}