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

Original release date: February 24, 2021Mozilla has released security updates to address multiple vulnerabilities in Thunderbird 78.8, Firefox ESR 78.8, and Firefox 86. An attacker could exploit these vulnerabilities to take control of an affected system.   CISA encourages users and administrators to review the Mozilla security advisories and apply the necessary updates. This product is provided subject to this Notification and this Privacy & Use policy.