Simon Willison • 4/22/2026

Quoting Bobby Holley

This article features Bobby Holley, CTO of Firefox, discussing a collaboration with Anthropic to apply an early version of Claude Mythos Preview to Firefox. The result is Firefox 150, which includes fixes for 271 vulnerabilities identified during the evaluation. Holley emphasizes the importance of reprioritizing tasks and focusing relentlessly on security, expressing optimism for defenders in the tech industry. The article is tech-focused, covering software security, browser development, and AI-assisted vulnerability detection.

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#security #Firefox #Anthropic