Mozilla security advisory (AV25-635)

Serial number: AV25-635
Date: October 2, 2025

Between September 28 and 30, 2025, Mozilla published security advisories to address vulnerabilities in the following products:

• Firefox – versions prior to 143.0.3
• Firefox for iOS – versions prior to 143.1

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

• Security Vulnerabilities fixed in Firefox 143.0.3
• Security Vulnerabilities fixed in Firefox for iOS 143.1
• Mozilla Security Advisories