An attacker could have leveraged the Windows Error Reporter to run arbitrary code on the system escaping the sandbox. *Note:* This issue only affected Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.
https://www.mozilla.org/security/advisories/mfsa2024-14/
https://www.mozilla.org/security/advisories/mfsa2024-13/