Remote Yes

Type Unknown

Description

Firefox behaved slightly differently for already known resources when loading CSS resources involving CSS variables. This could have been used to probe the browser history.

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=1760674