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

@-moz-document domain("facebook.com") {
  /* Reduce hightlights to 5 stories */
  .UIHomeBox {
    max-height:375px;/* 5 stories * 75px (story height aprox.)*/
  }
/* Hide 1st story, usually from Facebook */
  .emu_ad  {
    display:none;
  }
}