@温xi_寂寞#appmenu-button menu[disabled="true"],
#appmenu-button menuitem[disabled="true"],
.splitmenu-menuitem[disabled="true"],
menu[_moz-menuactive="true"][disabled="true"],
menuitem[_moz-menuactive="true"][disabled="true"],
.splitmenu-menuitem[_moz-menuactive="true"][disabled="true"] {
color: GrayText !important;
}