Usefull tools to debug websites

Imported From: http://groups.google.com/group/in-portal-resources/browse_thread/thread/51d763943628dd90#

Hi guys,

I recently discovered tools I wanted to share, all of them are firefox
plugin:

http://www.firephp.org/  -  usefull to have a full php debug window

https://addons.mozilla.org/en-us/firefox/addon/javascript-debugger/  -  as
it's called :)

https://addons.mozilla.org/en-us/firefox/addon/tamper-data/  -  view an
modify headers and POST values on the fly

Phil.