Favicons in Firefox (Mac) Bookmarks Toolbar

userChrome.css

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

.bookmark-item > .toolbarbutton-icon {
    display: -moz-box ! important;
    background-position: 0px 1px !important;
    padding-right: 3px ! important;
}

.bookmark-item:hover > .toolbarbutton-icon {
    background: url("chrome://global/skin/toolbar/toolbarbutton-customhover-mid.png") repeat-x;
    display: -moz-box ! important;
    background-position: 0px 1px !important;
    padding-right: 3px ! important;
}

.bookmark-item[container]:hover:active > .toolbarbutton-icon,
.bookmark-item[container][open="true"] > .toolbarbutton-icon {
    background: url("chrome://browser/skin/bookmark-open-mid.png") repeat-x !important;
}

.bookmark-item[container] > .toolbarbutton-icon { display: none ! important }

.bookmark-item[image] > .toolbarbutton-icon {
    display: -moz-box ! important;
    background-position: 0px 1px !important;
    padding-right: 3px ! important;
    float:right !important;
}

/** Replace 'delicous' with the bookmark label you don't want have have a favicon show **/
.bookmark-item[label="delicous"] > .toolbarbutton-icon
{
    display: none !important;
    border: 1px solid red !important;
}