Mozilla’s Mythos Test: 271 Firefox 150 Bugs Show AI Finds Far More — But Creates Remediation and Governance Strain
Mozilla’s early access work with Anthropic’s Mythos model turned up 271 vulnerabilities in Firefox 150 — more than ten times the 22 issues Anthropic’s Opus 4.6 flagged in Firefox 148 — demonstrating a sharp jump in discovery rate that has immediate operational consequences for maintainers and defenders. What Mythos actually revealed in Firefox Mythos autonomously […]
