I am running Mozilla Firefox and I am plagued by 'Ad by Notificatoin | Close'
virus, it now has pop ups that slide in from the side and the hyperlinked words. I have followed every instruction I can find, I have ran Malware Bytes and even purchased the premium upgrade. I ran Malware in Safe Mode and it states no threats detected? I have also tried Revo Uninstall but could not see any unusual downloads. Mozilla is very slow and keeps crashing. I have reset Mozilla to default setting. and still nothing changes. Can anyone point me in a direction that might help.