@-moz-document url-prefix('http://www.tumblr.com'), url-prefix('https://www.tumblr.com')   {

#popover_blogs .tab_notice:after{display:none}div.l-header .tab.iconic > a {background-image:url('http://media.tumblr.com/tumblr_majxx4vQm11qea1q8.png') !important;}

}