''<p>phil_borth [[#question-1490299|said]]</p>'' <blockquote>how to block mcfee popups in firefox how to block ads in firefox </blockquote> Are these small popups only on the far right corner of Firefox windows? if so then this may just be web push notifications sent from sites you have allowed to send you notifications from. 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 Unfortunately some sites may send you junk, spam, fake virus alerts (including fake McAfee alerts) etc instead of useful information notifications.

IT covers the whole screen It takes three lots of closing screens to get rid of it It then comes back later It is a Mcfee anti virus ad