Mozilla is pushing back against UK proposals that could restrict or age-gate VPN services, arguing that VPNs are important privacy and security tools that should not be weakened. The company says VPNs protect users from tracking, cyberattacks, censorship, and data collection, and are widely used by students, remote workers, journalists, activists, and everyday internet users. Mozilla argues this could create privacy risks, as people would need to share personal information to access tools designed to protect their privacy. Mozilla also warned that limiting VPNs would not solve online harm. Instead, governments should hold platforms accountable, improve digital education, and support safer online experiences without weakening internet privacy.

Mozilla used a new AI tool called Claude Mythos to find 271 security problems in Firefox, and all of them have been fixed in Firefox version 150. The team built a special testing system to verify the AI's work. This ensured almost none of the reports were false alarms, as the AI creates simple test pages that run on a special test version of Firefox where a crash proves a real bug The fixed bugs include 180 very serious issues, 80 medium issues, and 11 small issues.

We partnered with Mozilla to test Claude's ability to find security vulnerabilities in Firefox. Opus 4.6 found 22 vulnerabilities in just two weeks. Of these, 14 were high-severity, representing a fifth of all high-severity bugs Mozilla remediated in 2025.