A race condition could have allowed bypassing the fullscreen notification which could have lead to a fullscreen window spoof being unnoticed. *This bug only affects Thunderbird for Windows. Other operating systems are unaffected.* External Reference: https://www.mozilla.org/en-US/security/advisories/mfsa2022-02/#CVE-2022-22746
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-22746