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

@-moz-document url-prefix("http://tieba.baidu.com"), url-prefix("http://post.baidu.com") {
HTML > BODY > FORM + DIV,
HTML > BODY > DIV:first-child + DIV + FORM + DIV,
html > body > DIV:first-child + SCRIPT + DIV + DIV + FORM + DIV,
#rightAd { display: none !important; }
}