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

@-moz-document url(chrome://browser/content/aboutDialog.xul) {
  /* #bottomBox first added for Fx4 */
  #bottomBox {
    padding-bottom: 15px !important;
  }
  /* #trademark first added for Fx4 */
  #trademark {
    margin: 0 !important;
    display: none !important;
  }
}