A use-after-free crash could have occurred on macOS if a Firefox update were being applied on a very busy system. This could have resulted in an exploitable crash. This vulnerability affects Firefox < 122. https://bugzilla.mozilla.org/show_bug.cgi?id=1866840 https://www.mozilla.org/security/advisories/mfsa2024-01/
Created firefox tracking bugs for this issue: Affects: fedora-all [bug 2260020]