AdBlock Ultimate is designed with a single purpose in mind to remove all ads and focus your attention on the content you want.

AdBlock Ultimate for Firefox is a free extension that blocks ads and malicious domains known to spread malware, disables tracking. We have included a few extensive filters that offer decent protection against annoying, flashy ads, YouTube commercials, and more. Unlike other adblockers we do not whitelist websites, advertisers or ad networks to show you unwanted ads. Blocking ads will speed up your website load speed, decrease CPU and memory usage.

Remove all ads

Block malware and tracking

Improve browser performance

No "acceptable" ads or whitelisted websites/ad networks

Most adblockers, have whitelists for advertisers and some ads actually are shown. AdBlock Ultimate doesn't have any whitelists and don't rely on any sponsorship at all.