Web Developer extension just got better. In fact it got better without even telling me, I opened Firefox and it had all these new menus. For anyone who has not come across this great little utility it is an extension to Firefox/Mozilla. Web Developer allows you to interactively interrogate and debug web pages. If you want to find out how a web page works or why it does not work this is the tool. It often helps me to cut hours off debugging CSS.

Some of the new features like switching off individual stylesheets and displaying CSS by media type are going to become indispensable. I also love the view JavaScript option which displays all JavaScript loaded by the page. The developer of this extension Chris Pederick has done a fantastic job.