@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/INwWK6QAAABh0RVh0U29mdHdhcmUAUGFpbnQuTkVUIHYzLjA4ZXKc4QAAAC9JREFUOE9j5LcMWsxATQAykJqYgZqGgX07aiDFETQahpQn8tEwHA1DMsrKwZ9sADuo19oANiVcAAAAAElFTkSuQmCC") !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;
    }

}