Simon Willison’s Weblog

ReferenceError: console is not defined. Since Firebug 1.2 you need to call window.loadFirebugConsole() in order for console.log and friends to work.

Posted 23rd December 2008 at 10:22 pm

Recent articles

GPT-5 Thinking in ChatGPT (aka Research Goblin) is shockingly good at search - 6th September 2025
V&A East Storehouse and Operation Mincemeat in London - 27th August 2025
The Summer of Johann: prompt injections as far as the eye can see - 15th August 2025

debugging 35 firebug 22 firefox 90 javascript 719

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