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Security Vulnerabilities fixed in Firefox 149 — Mozilla

🗓️ 24 Mar 2026 00:00:00Reported by Mozilla FoundationType 
mozilla
 mozilla
🔗 www.mozilla.org👁 5 Views

Security fixes address memory safety bugs in Firefox and Thunderbird across multiple versions.

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24 Mar 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.110
EPSS0.00039
SSVC
5