Mozilla Releases Security Updates for Firefox, Firefox ESR, and Thunderbird

Original release date: November 19, 2020

Mozilla has released security updates to address vulnerabilities in Firefox, Firefox ESR, and Thunderbird. An attacker could exploit some of these vulnerabilities to take control of an affected system.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review the Mozilla Security Advisories for Firefox 83, Firefox ESR 78.5, and Thunderbird 78.5 and apply the necessary updates.

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