Mozilla published security updates on 23rd March 2021, addressing vulnerabilities in the following products. It is recommended that you take the necessary precautions by ensuring your products are always updated.
Firefox versions prior to 87
Firefox ESR versions prior to 78.9
Thunderbird versions prior to 78.9
For more information on these Mozilla updates, you can follow the URL:
The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.
PDF Download: Mozilla Security Updates.pdf
Mozilla Security Advisories (23rd March 2021) Retrieved from Mozilla
Mozilla Security Advisory (23rd March 2021) Retrieved from Canadian Centre for Cyber Security (Cyber Centre)