uBlock Origin
uBlock Origin is NOT an 'ad blocker': it is a wide-spectrum blocker -- which happens to be able to function as a mere "ad blocker". The default behavior of uBlock Origin when newly installed is to block ads, trackers and malware sites -- through EasyList, EasyPrivacy, Peter Lowe’s ad/tracking/malware servers, various lists of malware sites, and uBlock Origin's own filter lists.[1]
- uBlock Origin [EN] @ Firefox Add-ons
- uBlock Origin [EN] @ Chrome Extensions