HTML validator for Firefox
Mort posted a link to a very handy little firefox addon.
Based on Tidy (which I mentioned recently) the extension checks sites for valid HTML as you browse.
If there are any errors or warnings an icon in the corner subtly alerts you to them. Double-clicking on the icon brings up a screen with a lot more detail.
It's a very nice little addition, though I don't understand why the developer hasn't put it in the official firefox extensions' repository.
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The HTML validator for Firefox has really come to light in the script kiddie world this week since its use in recent flaws in phpBB 2.0.12 and below.
See
http://www.packetstormsecurity.org/0503-exploits/phpbb2012.txt
Even popular webhosts here in eire where embarrassed at slow updating to 2.0.13
No Tom. The plugin the script kiddies are using is the http headers one, which is completely different.
Michele
Ah well spotted, my bad.
Hrm. I've been trying it out and its not perfect. It seems to be the fault of Tidy rather than the extension. It gives warnings on nested tags, and on href target attributes beginning with underscores. The w3c validator says that both of these are fine. Still, its better than nothing :)
Previous post should read "warnings on nested tags" ...
Lee
It's not perfect, but it's still very handy :)