Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a denial of service. *Note: This attack only affects Windows. Other operating systems are not affected.* This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.
https://www.mozilla.org/security/advisories/mfsa2023-18/
https://www.mozilla.org/security/advisories/mfsa2023-17/
https://www.mozilla.org/security/advisories/mfsa2023-16/
https://security.gentoo.org/glsa/202401-10