Simon Willison’s Weblog

Gaping holes exposed in fully-patched IE 7, Firefox (via) Michal Zalewski released a new Firefox 2.0 vulnerability in addition to the IE cookie stealing one.

Posted 6th June 2007 at 9:57 am

Recent articles

First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026
Fly's new Sprites.dev addresses both developer sandboxes and API sandboxes at the same time - 9th January 2026

firefox 90 internet-explorer 74 michal-zalewski 3 security 573

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