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

Security Vulnerabilities fixed in Firefox 86 — Mozilla

Mozilla has released security updates to address vulnerabilities in Firefox, Firefox ESR, and Thunderbird. An attacker could exploit these vulnerabilities to take control of an affected system.  CISA encourages users and administrators to review the Mozilla security advisories for Firefox 86, Firefox ESR 78.8, and Thunderbird 78.8 and apply the necessary updates.