Mozilla Used Anthropic’s Mythos to Find and Fix 271 Bugs in Firefox

Mozilla says Firefox 150 includes protections for 271 vulnerabilities discovered with early access to Anthropic's Mythos Preview.

The browser maker says AI-assisted bug hunting is quickly becoming a major force in software security for both defenders and attackers.

The finding highlights how AI tools can uncover large numbers of hidden bugs fast, pushing teams to harden code sooner.