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

@-moz-document domain("answers.com") {

div[class="ads"],
  div[id="ad_div"],
  div[id^="h_ads"],
  div[id^="ad_"],
  div#horizontalads,
  div[id$="ads"] {
    display: none !important;
  }

  #new_left {
    min-width: 815px !important;
    max-width: 815px !important;
    width: 815px !important;
    margin-left: 1px !important;
    margin-right: 0px !important;
    padding-right: 0px !important;
  }
}