Mozilla security advisory (AV23-776)

Serial number: AV23-776
Date: December 19, 2023

On December 19, 2023, Mozilla published security advisories to address vulnerabilities in the following products:

• Firefox – versions prior to 121
• Firefox ESR – versions prior to 115.6
• Thunderbird – versions prior to 115.6

The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

• Mozilla Security Advisory - MFSA 2023-54
• Mozilla Security Advisory - MFSA 2023-55
• Mozilla Security Advisory - MFSA 2023-56
• Mozilla Security Advisories