I’ve just added the webdeveloper toolbar to my firefox. Not quite sure how to use well any of it. I also added the firebug tool - now this tool is bloody excellent! I love the inspect button. You can just open up the guts and look into any site, in a totally intelligible way. Can’t even imagine how useful it will be when I can actually use it.

So if you haven’t got it - as the site says get it!

www.getfirebug.com