Security Information for Firefox, Thunderbird

Posted at Wednesday, February 25, 2026

The latest version of Firefox, Thunderbird has been released. These updates include fixes for vulnerabilities.

References

Security Vulnerabilities fixed in Firefox 148 — Mozilla (https://www.mozilla.org/en-US/security/advisories/mfsa2026-13/)

Security Vulnerabilities fixed in Thunderbird 148 — Mozilla (https://www.mozilla.org/en-US/security/advisories/mfsa2026-16/)