Partnering with Mozilla to improve Firefox’s security - Anthropic

Anthropic's Claude Opus 4.6 AI model discovered 22 novel vulnerabilities in Firefox, 14 of which were high-severity, leading to fixes in Firefox 148.0 for hundreds of millions of users. The AI also demonstrated the ability to automatically develop crude browser exploits for some of these vulnerabilities, underscoring the potential for AI in accelerated vulnerability discovery and exploit generation.