Mozilla has published security advisories on 26th January 2021 highlighting vulnerabilities in the following products. It is recommended that you take the necessary precautions by ensuring your products are always updated.
Firefox ESR 78.7
Firefox 85
Mozilla Thunderbird 78.7
For more information on these Mozilla updates, you can follow the URL:
https://www.mozilla.org/en-US/security/advisories/
The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.
PDF Download: Mozilla Releases Security Updates.pdf
References
Mozilla security Advisories (26th, January 2021). Retrieved from Mozilla Security
HTTP://WWW.Mozilla.org/en-US/security/advisories/
Mozilla security Advisory (26th, January 2021). Retrieved from Canadian Centre for Cyber Security (Cyber Centre)