Original release date: December 15, 2015

The Mozilla Foundation has released security updates to address vulnerabilities in Firefox and Firefox ESR. Exploitation of some of these vulnerabilities may allow a remote attacker to take control of an affected system.

Available updates include:

• Firefox 43
• Firefox ESR 38.5

US-CERT encourages users and administrators to review the Security Advisories for Firefox and Firefox ESR and apply the necessary updates.

This product is provided subject to this Notification and this Privacy & Use policy.