CVE ID:	CVE-2021-43538
Description:	By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-43538 Debian Security Information: DSA-5026 (Google Search) https://www.debian.org/security/2021/dsa-5026 Debian Security Information: DSA-5034 (Google Search) https://www.debian.org/security/2022/dsa-5034 https://security.gentoo.org/glsa/202202-03 https://security.gentoo.org/glsa/202208-14 https://bugzilla.mozilla.org/show_bug.cgi?id=1739091 https://bugzilla.mozilla.org/show_bug.cgi?id=1739091 https://www.mozilla.org/security/advisories/mfsa2021-52/ https://www.mozilla.org/security/advisories/mfsa2021-52/ https://www.mozilla.org/security/advisories/mfsa2021-53/ https://www.mozilla.org/security/advisories/mfsa2021-53/ https://www.mozilla.org/security/advisories/mfsa2021-54/ https://www.mozilla.org/security/advisories/mfsa2021-54/ https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html