{"id":715395,"date":"2026-03-06T22:05:09","date_gmt":"2026-03-06T19:05:09","guid":{"rendered":"https:\/\/buradabiliyorum.com\/en\/anthropics-claude-found-22-vulnerabilities-in-firefox-over-two-weeks\/"},"modified":"2026-03-06T22:05:09","modified_gmt":"2026-03-06T19:05:09","slug":"anthropics-claude-found-22-vulnerabilities-in-firefox-over-two-weeks","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/anthropics-claude-found-22-vulnerabilities-in-firefox-over-two-weeks\/","title":{"rendered":"Anthropic&#8217;s Claude found 22 vulnerabilities in Firefox over two weeks"},"content":{"rendered":"<div>\n<p id=\"speakable-summary\" class=\"wp-block-paragraph\">In a recent security partnership with Mozilla, Anthropic found <a rel=\"nofollow\" target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.anthropic.com\/news\/mozilla-firefox-security\">22 separate vulnerabilities<\/a> in Firefox \u2014 14 of them classified as \u201chigh-severity.\u201d Most of the bugs have been fixed in <a rel=\"nofollow\" target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/www.firefox.com\/en-US\/firefox\/148.0\/releasenotes\/\">Firefox 148<\/a> (the version released this February), although a few fixes will have to wait for the next release.<\/p>\n<p class=\"wp-block-paragraph\">Anthropic\u2019s team used Claude Opus 4.6 over the span of two weeks, starting in the java<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">script<\/a> engine and then expanding to other portions of the codebase. According to the post, the team focused on Firefox because \u201cit\u2019s both a complex codebase and one of the most well-tested and secure open-source projects in the world.\u201d<\/p>\n<p class=\"wp-block-paragraph\">Notably, Claude Opus was much better at finding vulnerabilities than writing software to exploit them. The team ended up spending $4,000 in API credits trying to concoct proof-of-concept exploits, but only succeeded in two cases.<\/p>\n<p class=\"wp-block-paragraph\">Still, it\u2019s a reminder of how powerful AI tools can be for open-source projects \u2014 even if they bring a flood of bad merge requests alongside the useful ones.<\/p>\n<\/div>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMN63nwsw68G3Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more like this article, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/buradabiliyorum.com\/en\/category\/technology\/\" target=\"_blank\" >Technology<\/a><\/span> category.<\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/techcrunch.com\/2026\/03\/06\/anthropics-claude-found-22-vulnerabilities-in-firefox-over-two-weeks\/\" target=\"_blank\" >Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In a recent security partnership with Mozilla, Anthropic found 22 separate vulnerabilities in Firefox \u2014 14 of them classified as \u201chigh-severity.\u201d Most of the bugs have been fixed in Firefox 148 (the version released this February), although a few fixes will have to wait for the next release. Anthropic\u2019s team used Claude Opus 4.6 over&#8230;<\/p>\n","protected":false},"author":1,"featured_media":715396,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/techcrunch.com\/wp-content\/uploads\/2025\/08\/Claude-Chrome-Ext_email-hero-hero.png?w=1200","fifu_image_alt":"","footnotes":""},"categories":[18],"tags":[77337,152300,153776,34281,72287,160974],"class_list":["post-715395","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology","tag-ai","tag-anthropic","tag-claude","tag-firefox","tag-security","tag-vulnerabilities"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/715395","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=715395"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/715395\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/715396"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=715395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=715395"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=715395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}