Mozilla has published a security advisory to address vulnerabilities in Firefox and Firefox ESR on the 08th of February 2022. It is recommended that you take the necessary precautions by ensuring your products are always updated.
For more information on these updates, you can follow these URLs:
https://www.mozilla.org/en-US/security/advisories/mfsa2022-04/
https://www.mozilla.org/en-US/security/advisories/mfsa2022-05/
The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.
PDF Download: Mozilla Security Advisory.pdf
References