Claude Opus 4.6 Finds 22 Firefox Vulnerabilities in Two Weeks — 100+ Bugs Total in Mozilla Partnership
Two weeks. Twenty-two CVEs. Fourteen classified high-severity. That’s what Claude Opus 4.6 delivered when Mozilla handed it access to the Firefox codebase in February 2026 — and it redefines what AI-augmented security research looks like in practice. Mozilla didn’t mince words: Claude found more high-severity bugs in two weeks than the world typically reports in two months. That’s not a benchmark. That’s a structural change in how software security works. ...