@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document domain("dict.pl") {

  #advCorner,
  #advHorizontal,
  #advBelowMain,
  div.adlinksbox,
  #bottomLinks + div,
  #mainHome > table.p1_table > tbody > tr:nth-child(3) > td:nth-child(4){
    display: none !important;
  }
}