Mozilla Security Updates (23rd March 2021)

Ref# ADV2021_38 | Date: Mar 23rd 2021

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)