@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);
popup menu, 
popup menuitem, 
menupopup menu, 
menupopup menuitem, 
contex-menu {
height: 17px !important;
margin-right: 1px!important;
margin-bottom: 1px!important;
-moz-appearance: none !important;
background-color: #ffffff !important;
}
menuseparator {
-moz-appearance: none !important;
background-color: #ffffff !important;
margin-bottom:-7px!important;
}
popup menu:hover, 
popup menuitem:hover, 
menupopup menu:hover, 
menupopup menuitem:hover, 
contex-menu:hover  {
background-color: #000000 !important;
-moz-border-radius: 2px !important;
}