The executable file warning was not presented when downloading .xrm-ms files. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
https://www.mozilla.org/security/advisories/mfsa2024-20/
https://www.mozilla.org/security/advisories/mfsa2024-19/