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

@-moz-document domain("b.hatena.ne.jp") {
 .ad-line,
 #entrylist_ad,
 .violation,
 .line4-4,
 .tag-sponsor-subtitle,
 #tag-sponsor,
 .plus_icon {
  display : none !important;
 }
 .sponsored-tag {
  font-weight : normal !important;
  color : #6666CC !important;
 }
}