Serial number: AV26-726 Date: July 21, 2026 On July 21, 2026, Mozilla published security advisories to address vulnerabilities in the following products. Included were critical updates for the following: - Firefox ESR – versions prior to 140.13 - Firefox ESR – versions prior to 115.38 - Firefox – versions prior to 153 The Cyber Centre encourages users and administrators to review the provided web ...