Simon Willison’s Weblog

Introducing Operator. New microformat detecting Firefox extension, developed at IBM and released by Mozilla Labs. Examples are from Yahoo! Local, Upcoming and Flickr.

Posted 18th December 2006 at 4:36 pm

Recent articles

The Summer of Johann: prompt injections as far as the eye can see - 15th August 2025
Open weight LLMs exhibit inconsistent performance across providers - 15th August 2025
LLM 0.27, the annotated release notes: GPT-5 and improved tool calling - 11th August 2025

extension 2 firefox 90 flickr 104 ibm 11 microformats 32 mozilla 112 mozillalabs 1 upcoming 5 yahoo 107

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe