Synced 16 Oct 2026 13:44 UTC Account

Is Mozilla Firefox 111.0.1 patched?

Mozilla · cycle 111.0 · Official site ↗
111.0.15/100Critical · exploited

Current stable (158.0): 100/100

Minimum safe version157.0.1

111.0.1 has 448 open critical-or-high vulnerabilities. Run 157.0.1 or later to clear them. See what 157.0.1 fixes →

1 of the vulnerability affecting 111.0.1 is linked to ransomware campaigns (CISA KEV) — prioritise patching.
Health score5/100
Open issues579
Exploited now1
Cycle 111.0 EOL—
Latest release158.0

Summary iPlain-English security status for Mozilla Firefox 111.0.1, built from its CVEs, active-exploitation data, end-of-life date and latest release.

Mozilla Firefox 111.0.1 is part of the 111.0 release line. 1 actively-exploited vulnerability affects it (CISA KEV). 1 is linked to ransomware campaigns (CISA KEV). The minimum safe version is 157.0.1 — upgrade to it or later to clear the open critical/high issues. The latest supported Mozilla Firefox release is 158.0.

Frequently asked

Is Mozilla Firefox 111.0.1 patched?

No — 1 actively-exploited vulnerability affects Mozilla Firefox 111.0.1. Upgrade to at least 157.0.1.

What version should I upgrade Mozilla Firefox 111.0.1 to?

Upgrade Mozilla Firefox 111.0.1 to at least 157.0.1 to clear its 448 open critical-or-high vulnerabilities.

What is the latest version of Mozilla Firefox?

The latest supported Mozilla Firefox release is 158.0.

Is Mozilla Firefox 111.0.1 still receiving security updates?

Yes — the 111.0 line is still supported and receiving security updates. The latest release is 158.0.

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 ↗