Just a quick tip that if you are a developer and you lately upgraded Firefox4 to Firefox5 (or why not give Aurora a try?) it tells you that Firebug is not compatible and can’t find an upgrade.
However, there is a compatible version of Firebug (v1.8) available for you: get it here.
Now you can get the latest Firefox goodness and still debug your code.
About Chris Heilmann
Evangelist for HTML5 and open web. Let's fix this!