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Sun, 05 Feb 2006

Greasemonkey (and JavaScript) Debugging in FireFox
Since being bitten by the Greasemonkey bug I've found dozens of ways to write broken and invalid JavaScript. While the JavaScript console that comes bundled with FireFox has helped track them down it's come up short on a number of occasions. Fortunately we've now got FireBug, a per page JavaScript console with a bundle of extras. Including an integrated element inspector and XMLHttpRequest sniffer that shows you any AJAX traffic.

And now for an related, annoying quirk. If you view source on a page, you get the source *before* any Greasemonkey changes have taken place. Which is often the exact opposite of what you want. I've worked around this with the "View Generated Source" function in the Web Developer Extension.

Bonus extension: Html Validator Firefox Extension. Displays a little icon on the bottom right of the screen which shows when a page has warnings or errors. It can show the total warnings and errors for the page but you need to enable this option. Double click the icon for more details.

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Posted: 2006/02/05 14:50 | /tools/firefox | Permanent link to this entry | This entry + same date


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