Serial number: AV26-478
Date: May 19, 2026
On May 19, 2026, Mozilla published security advisories to address vulnerabilities in the following products:
- Firefox - versions prior to 151
- Firefox ESR - versions prior to 115.36
- Firefox ESR - versions prior to 140.11
The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.