Mozilla claims Anthropic Mythos found a trove of high severity Firefox bugs

Some flaws are severe enough to reshape patch priorities

Mozilla’s security researchers say Anthropic’s Mythos helped surface a significant number of high-severity vulnerabilities in Firefox. The findings suggest the AI system can dig up dangerous weaknesses faster than traditional review, potentially shifting how teams triage and patch browser security. The report raises questions about what else such tools could uncover in widely used software.