Mozilla has published a security advisory, highlighting a vulnerability in the following products listed below on the 5th of October 2021. It is recommended that you take the necessary precautions by ensuring your products are always updated.
Firefox versions prior to 93
Firefox ESR versions prior to 78.15 and 91.2
For more information on this update, you can follow these URLs:
https://www.mozilla.org/en-US/security/advisories/mfsa2021-43/
https://www.mozilla.org/en-US/security/advisories/mfsa2021-44/
https://www.mozilla.org/en-US/security/advisories/mfsa2021-45/
The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.
PDF download: Mozilla Security Advisory.pdf
References
Mozilla security advisory (5th October 2021). Retrieved from Mozilla.
https://www.mozilla.org/en-US/security/advisories/
Mozilla security advisory (5th October 2021). Retrieved from Canadian Centre for Cyber Security.
https://www.cyber.gc.ca/en/alerts/mozilla-security-advisory-45