Firefox web browser is infected with text enable option

have comprised this McAfee, Malware Bytes, SupperAntiSpyware and none of these be able to rid me of this nuisance. It is on webpages and it's taken in excess off ever spare space on Twitter commencing from side to side the ads of gaming, sexual orientation, audio ads and much additional. Two things I have encompassed and had extremely superior luck through in cleaning systems lately are TDSSKiller and the Microsoft Standalone System Sweeper. If they not be able to clean it is time to backup and reload.