/* Disabled empty item looks too small otherwise, because it has no icon. */
menuitem.subviewbutton[disabled]:not(.menuitem-iconic),
/* Same for checkbox menu items, whose icons lose size due to -moz-appearance: none: */
/* Disabled empty item looks too small otherwise, because it has no icon. */
menuitem.subviewbutton[disabled]:not(.menuitem-iconic),
/* Same for checkbox menu items, whose icons lose size due to -moz-appearance: none: */