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

@-moz-document url-prefix("http://www.paperbackswap.com/members/index.php") {
#page_content > DIV:first-child + DIV + DIV > DIV:first-child + DIV + BR + H2 + DIV, 
#from_to_mail > DIV:first-child + DIV > DIV > DIV > DIV + DIV + DIV > DIV:last-child, 
#from_to_mail > DIV:first-child + DIV > DIV > DIV > DIV:first-child + DIV > DIV:last-child { display: none; } 
}