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How to force Firefox to open error console every time a JavaScript error occurs?

I often overlook some bugs while developing because of that, but let's say I don't want to have Firebug enabled.

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2 Answers 2

You can always open your firefox with the jsconsole enabled by adding


to the command line.

It's not exactly a "when error" occur, but can save some mouse clicks in the long run

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With the webdeveloper addon, go to options -> miscellaneous, there is an option to do exactly that.

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Can this answer be updated? I don't see any "miscellaneous" and I can't find the option anywhere else. I hope it didn't disappear. – Wumpus Q. Wumbley Jan 9 '14 at 17:59

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