Adblock Plus is a free extension that allows you to - among other things - block annoying ads, disable tracking and block domains known to spread malware. Available for Android, Chrome, Firefox, Internet Explorer, Maxthon, Opera, Safari and Yandex, Adblock Plus uses filters that you choose to block all unwanted elements.
Created by Wladimir Palant in 2006, Adblock Plus is an open source project. In 2011, Palant, together with Till Faida, founded Eyeo to make its development sustainable.
Adblocking extension for Mozilla Firefox, Thunderbird, and SeaMonkey