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With the help of Claude Mythos Preview, the Firefox team fixed more security bugs in April than in the past 15 months combined.
The Firefox development team reportedly resolved a significantly higher volume of security vulnerabilities in April with assistance from Claude Mythos Preview, an AI tool, compared to their bug-fixing
The Firefox development team reportedly resolved a significantly higher volume of security vulnerabilities in April with assistance from Claude Mythos Preview, an AI tool, compared to their bug-fixing output over the preceding 15 months. This claim suggests that Claude Mythos Preview substantially accelerated the Firefox team's ability to identify and fix security issues. The post was shared by Boris Cherny on X (formerly Twitter).
Source: Boris Cherny (X) | 2026-05-07