Firefox 123.x — End of Life
EOLFirefox 123.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status |
|---|---|---|---|---|---|
| 123 | Feb 20, 2024 | — | Mar 19, 2024 | 123.0.1 | EOL |
CVEs affecting Firefox 123.x (0)
Firefox 123.x is EOL — migrate to Firefox 124.x
Firefox 124.x is the next major release. Plan your upgrade before Firefox 123.x stops receiving security patches.
Frequently asked questions
Is Firefox 123 end of life?
Yes. All Firefox 123.x releases have reached end of life and no longer receive security patches. Migrate to Firefox 124.x as soon as possible.
What CVEs affect Firefox 123?
No CVEs are currently tracked for Firefox 123.x in our database. This may mean no vulnerabilities have been recorded yet, or the data is still syncing.
What is the latest Firefox 123 version?
The latest Firefox 123.x patch release is 123.0.1, released on March 5, 2024. Always run the latest patch to benefit from all security fixes.
How to migrate from Firefox 123 to Firefox 124?
To migrate from Firefox 123 to Firefox 124: (1) review the official Firefox 124 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 123 in production?
No. Firefox 123 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