# Firefox 159 and Chrome patch over 200 security flaws, urging updates

> Original title: Firefox and Chrome patch 200+ security flaws combined – update both ASAP

- Source: ZDNet · AI
- Published: 2026-10-29T16:30:28.000Z
- Bad Influence: https://badinfluence.news/items/c1p4bv1c8cm5xoohvwnhpzwoi
- Original: https://www.zdnet.com/tech/firefox-chrome-browsers-patch-200-security-flaws-update-asap/

## Summary

Mozilla's Firefox 159 fixes 167 security bugs, 108 of them rated high severity, while Google's latest Chrome update patches 52 flaws, four rated critical. Firefox 159 also adds a Smart Window /watch command that notifies users when a saved web page changes. Google credits Anthropic's Claude and OpenAI with finding several Chrome flaws, and Mozilla credits an OpenAI security analyst for many of the Firefox bugs.