The best web dev tool there is reaches 1.3.0 Final.

They have really made some great progress lately and for those of you not using Firefox 3.1 yet, you can go get this now.

Firebug 1.3.0 Final Released

If you are using Firefox 3.1 you will still need to go get the 1.4 alpha (or soon to be beta).

Firebug Release Directory

Thank you again Firebug team!

 New Firefox extension for Firebug.  Firebug is already THE tool for any web developer.

All you web developers using Firebug, go get Firecookie so you get cookie control all right in Firebug interface.

http://www.janodvarko.cz/firecookie

Already found myself using it more than I thought I would.  So much more power being able to more than just view your cookies.

Get it, get it, get it!

Firebug 1.1 beta update has been released and you will want to update to this guy.

Release Notes

Download it now!

How did we ever survive doing web development before Firebug?