These messages are fake. Does it happen on Firefox for desktop?

''<p>SeanMc1222 [[#question-1545800|said]]</p>'' <blockquote>I get messages saying Mozilla infected . Both Norton and McGee scans say that system is clean </blockquote> https://support.mozilla.org/en-US/kb/push-notifications-firefox https://support.mozilla.org/en-US/kb/push-notifications-firefox#w_how-do-i-revoke-web-push-permissions-for-a-specific-site Are these small popups on bottom right corner of Firefox window? if so then these may just be web push notifications from sites you have allowed to send you notifications. Instead of useful information some may send you junk, spam, fake virus/trojan alerts etc. You can revoke these sites from sending you notifications as shown in second kb link above. Also I think you meant McAfee