{"type": "article", "title": "How Claude Mythos found a 15-year-old bug in Mozilla Firefox | Brian Grinstead", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/how-claude-mythos-found-a-15-year-old-bug-in-mozilla-firefox-brian-grinstead", "original_source": "https://www.lennysnewsletter.com/p/how-claude-mythos-found-a-15-year", "published": "2026-06-22T12:03:06+00:00", "accessed": "2026-06-25", "id": "how-claude-mythos-found-a-15-year-old-bug-in-mozilla-firefox-brian-grinstead"}