Description
Mozilla has published security updates, highlighting vulnerabilities in Firefox, Firefox ESR, and Thunderbird. It is recommended that you take the necessary precautions by ensuring your products are always updated.
For more information on the updates you can follow these urls:
https://www.mozilla.org/en-US/security/advisories/mfsa2020-30/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-31/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-32/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-33/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-34/
The Guyana National CIRT recommends users and administrators to review these updates and to apply them where necessary.
Reference
Mozilla Releases Security Updates for Multiple Products (US-Cert)