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

@-moz-document url(chrome://global/content/commonDialog.xul) {

    dialog {
        background: url("data:image/png;base64,            iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAABGdBTUEAAK/INwWK6QAAABl0RVh0            U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAAkSURBVHjaYmFgYEhjoCJgYqAyGDVw1MBR            A0cNHDVwqBgIEGAAG+0AkbMLrG0AAAAASUVORK5CYII=") !important;
    }

    #info.header {
        font-size: 12pt !important;
    }

    vbox > description {
        font-weight: bold !important;
    }

    description, checkbox {
        color: #fff !important;
        font-family: "Verdana", Tahoma, sans-serif !important;
        font-size: 9pt !important;
    }

}