Mozilla Used Mythos to Fix 271 Firefox Bugs

General News
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Mozilla has announced that Firefox 150 (set to be released this week) will include fixes for 271 bugs found using Anthropic's "Claude Mythos" AI.

This is a companion discussion topic for the original entry at https://www.privacyguides.org/news/2026/04/22/mozilla-used-mythos-to-fix-271-firefox-bugs
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code-28
code-28720×323 31.5 KB
→ Joel Weinberger using Claude from Anthropic (Source oficial)

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I think it might be (the whole list of people) using Claude rather than (the last guy) using Claude, since I know Alex Gaynor actually works at Anthropic.

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Hopefully one of them is this bug.

https://-fingerprint-com/blog/firefox-tor-indexeddb-privacy-vulnerability/

We found a stable Firefox identifier linking all your private Tor identities

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That was already fixed and is expected in Firefox 150, as the article mentions.

The fix is here: Bug 2024220 - IDB database must return a sorted list. r=dom-storage-r… · mozilla-firefox/firefox@2c28194 · GitHub

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