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

@-moz-document domain("theregister.co.uk") {

#ad-mpu1-spot, #ad-mpu1, #ad-mpu2, #ad-mpu2-spot, #sponsored-links, #ad-trailerboard-spot, #ad-trailerboard, #btm-nav
{display: none !important}

}