Remote Yes

Type Unknown

Description

When reusing existing popups Firefox would have allowed them to cover the fullscreen notification UI, which could have enabled browser spoofing attacks.

AVG-2710 thunderbird 91.8.1-1 91.9-1 High Fixed

AVG-2709 firefox 99.0.1-1 100.0-1 High Fixed

https://bugzilla.mozilla.org/show_bug.cgi?id=1746448