gecko/toolkit/themes/winstripe/global/menu-aero.css

%include menu.css

@media (-moz-windows-default-theme) {
  menubar > menu:-moz-lwtheme {
    -moz-appearance: menuitem;
  }

  menubar > menu:-moz-lwtheme[_moz-menuactive="true"]:not([disabled="true"]) {
    color: inherit !important;
    text-shadow: inherit;
  }
}