Firefox 120.x — End of Life
EOLFirefox 120.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status |
|---|---|---|---|---|---|
| 120 | Nov 21, 2023 | — | Dec 19, 2023 | 120.0.1 | EOL |
CVEs affecting Firefox 120.x (0)
Firefox 120.x is EOL — migrate to Firefox 121.x
Firefox 121.x is the next major release. Plan your upgrade before Firefox 120.x stops receiving security patches.
Frequently asked questions
Is Firefox 120 end of life?
Yes. All Firefox 120.x releases have reached end of life and no longer receive security patches. Migrate to Firefox 121.x as soon as possible.
What CVEs affect Firefox 120?
No CVEs are currently tracked for Firefox 120.x in our database. This may mean no vulnerabilities have been recorded yet, or the data is still syncing.
What is the latest Firefox 120 version?
The latest Firefox 120.x patch release is 120.0.1, released on November 30, 2023. Always run the latest patch to benefit from all security fixes.
How to migrate from Firefox 120 to Firefox 121?
To migrate from Firefox 120 to Firefox 121: (1) review the official Firefox 121 migration guide for breaking changes, (2) update dependencies and configuration accordingly, (3) test thoroughly in a staging environment, (4) deploy with a rollback plan. Starting early gives you time to resolve compatibility issues before your current version reaches end of life.
Is it safe to run Firefox 120 in production?
No. Firefox 120 has reached end of life and security vulnerabilities are no longer patched. Upgrade to a supported version immediately.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA