Description
Microsoft has release updates to address a vulnerability in Firefox and Firefox ESR. 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:
Firefox 70
https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/
Firefox ESR 68.2
https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/
The Guyana National CIRT recommends users and administration to review these updates and to apply them where necessary.
Reference
Microsoft Release Security updates for Firefox and Firefox ESR (US-Cert)