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I keep getting Mozilla Fierfox security alerts like System Damage click here to save data

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Why do I get these alerts, I have checked my system with Windows security and they give me the all clear no scams found. Here comes another one Trojan virus detected delete with MC Afee Please help

Why do I get these alerts, I have checked my system with Windows security and they give me the all clear no scams found. Here comes another one Trojan virus detected delete with MC Afee Please help

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Are these small popups on bottom right corner of Firefox windows? if so then these may just be web push notifications from sites you have allowed to send you notifications. Unfortunately some sites may send you junk, spam, fake virus alerts including fake alerts from McAfee instead of useful information. You can revoke these sites.

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