Mcafee popups on my computor.
McAfee popups come up on my computer every time I log on to subscribe. I don't have McAfee. Also Antivirus license expired warnings as well. I have tried everything possible to stop this. Very annoying. I have gone on YouTube to watch videos on how to prevent popups from happening. Nothing is working. I hope you can help.
McAfee popups come up on my computer every time I log on to subscribe. I don't have McAfee. Also Antivirus license expired warnings as well. I have tried everything possible to stop this. Very annoying. I have gone on YouTube to watch videos on how to prevent popups from happening. Nothing is working. I hope you can help.
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Remove any push notification permissions for unwanted sites.
You can check for recently installed suspicious or unknown extensions.
Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.
- switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
- do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window
- https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode
- https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems
You can do a malware scan just to be sure.