Firefox 148.x — End of Life
EOLFirefox 148.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status |
|---|---|---|---|---|---|
| 148 | Feb 24, 2026 | — | Mar 24, 2026 | 148.0.2 | EOL |
CVEs affecting Firefox 148.x (0)
Firefox 148.x is EOL — migrate to Firefox 149.x
Firefox 149.x is the next major release. Plan your upgrade before Firefox 148.x stops receiving security patches.
Frequently asked questions
Is Firefox 148 end of life?
Yes. All Firefox 148.x releases have reached end of life and no longer receive security patches. Migrate to Firefox 149.x as soon as possible.
What CVEs affect Firefox 148?
No CVEs are currently tracked for Firefox 148.x in our database. This may mean no vulnerabilities have been recorded yet, or the data is still syncing.
What is the latest Firefox 148 version?
The latest Firefox 148.x patch release is 148.0.2, released on March 10, 2026. Always run the latest patch to benefit from all security fixes.
How to migrate from Firefox 148 to Firefox 149?
To migrate from Firefox 148 to Firefox 149: (1) review the official Firefox 149 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 148 in production?
No. Firefox 148 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