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Is Mozilla Firefox 158.0 patched?

Mozilla · cycle 158.0 · Official site ↗
158.0100/100Healthy
Health score100/100
Open issues0
Exploited now0
Cycle 158.0 EOL—
Latest release158.0

Summary iPlain-English security status for Mozilla Firefox 158.0, built from its CVEs, active-exploitation data, end-of-life date and latest release.

Mozilla Firefox 158.0 is part of the 158.0 release line. No known vulnerabilities affect it in our data. The latest supported Mozilla Firefox release is 158.0.

Known issues affecting 158.0

None found for this version. ✓

Frequently asked

Is Mozilla Firefox 158.0 patched?

Mozilla Firefox 158.0 is on the latest patch of its cycle with no known affecting vulnerabilities.

What is the latest version of Mozilla Firefox?

The latest supported Mozilla Firefox release is 158.0.

Is Mozilla Firefox 158.0 still receiving security updates?

Yes — the 158.0 line is still supported and receiving security updates.

Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Mozilla's official advisory before you patch or upgrade — Mozilla Firefox official site ↗