Mozilla has recently released security updates to address vulnerabilities in Firefox and Firefox ESR. It is recommended that you take the necessary precautions by ensuring your products are always updated.
For more information, follow these URLs:
https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-09/
The Guyana National CIRT recommends users and administration to review these updates and apply them where necessary.
References