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Is Mozilla Firefox 156.0.1 patched?

Mozilla · cycle 156.0 · Official site ↗
156.0.1100/100Healthy

Current stable (157.0): 100/100

Health score100/100
Open issues0
Exploited now0
Cycle 156.0 EOL—
Latest release157.0

Summary iPlain-English security status for Mozilla Firefox 156.0.1, built from its CVEs, active-exploitation data, end-of-life date and latest release.

Mozilla Firefox 156.0.1 is part of the 156.0 release line. No known vulnerabilities affect it in our data. The latest supported Mozilla Firefox release is 157.0.

Known issues affecting 156.0.1

None found for this version. ✓

Frequently asked

Is Mozilla Firefox 156.0.1 patched?

Mozilla Firefox 156.0.1 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 157.0.

Is Mozilla Firefox 156.0.1 still receiving security updates?

Yes — the 156.0 line is still supported and receiving security updates. The latest release is 157.0.

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 ↗