Firefox 151.x — End of Life
Active1 release in this series0 CVEs
Firefox 151.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status |
|---|---|---|---|---|---|
| 151 | May 18, 2026 | — | No | 151.0.3 | Active |
CVEs affecting Firefox 151.x (0)
No CVEs tracked for Firefox 151.x.
Frequently asked questions
Is Firefox 151 end of life?
No. Firefox 151.x is still supported. It continues to receive security patches and bug fixes.
What CVEs affect Firefox 151?
No CVEs are currently tracked for Firefox 151.x in our database. This may mean no vulnerabilities have been recorded yet, or the data is still syncing.
What is the latest Firefox 151 version?
The latest Firefox 151.x patch release is 151.0.3, released on June 2, 2026. Always run the latest patch to benefit from all security fixes.
When was Firefox 151 first released?
Firefox 151.0 was initially released on May 18, 2026. See the full version timeline in the table above.
Is it safe to run Firefox 151 in production?
Firefox 151 is still supported and safe for production use. Ensure you are running the latest patch version (151.0.3) to have all security fixes applied.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA