Mozilla has released security updates to address a vulnerability in Firefox, Firefox for Android, and Firefox ESR. An attacker could exploit this vulnerability (CVE-2020-16044) to take control of an affected system. According to Mozilla security advisory, security vulnerabilities were fixed in Firefox 84.0.2, Firefox for Android 84.1.3, and Firefox ESR 78.6.1.

Further information on vulnerabilities and updates is available at the following link:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-01/