/* ..... checked state ..... */
-input[type="checkbox"][_moz-input-checked] {
+input[type="checkbox"]:checked {
list-style-image: url("chrome://global/skin/checkbox/cbox-check.gif");
}
-input[type="checkbox"][_moz-input-checked][disabled="true"] {
+input[type="checkbox"][disabled="true"]:checked {
list-style-image: url("chrome://global/skin/checkbox/cbox-check-dis.gif") !important
}