Firefox/Extensions

A short list of essential firefox extensions:

• Web Developer bar - very useful tools for every web developer (especially the easy way to clear cache, disable javasript, showing cookie&javascript information, etc.)
• Firebug - Brings the convenience of graphical debuggers into the web (very useful for css, html and javascript debugging).
• It's All Text! - Very useful, not just for developers. Let's you edit any textarea field on the web in your favourite editor! (Haven't you always wanted to use VIM to fill out web forms ? i thought so ;) )
• Google Toolbar - I want to see pagerank .. and have a nice google history :)
• ModifyHeaders