-menu.subviewbutton:hover > .menu-right,
-menu.subviewbutton[_moz-menuactive="true"] > .menu-right {
- list-style-image: url("chrome://global/skin/menu/menu-arrow-hover.gif");
+menu.subviewbutton:not([disabled="true"]):hover > .menu-right,
+menu.subviewbutton:not([disabled="true"])[_moz-menuactive="true"] > .menu-right {
+ list-style-image: url("chrome://global/skin/menu/menu-arrow.svg#arrow-hover");