HACKING ADD-ONES FOR MOZILLA

1,Tamper Data

https://addons.mozilla.org/en-US/firefox/addon/966
Lets you modify headers as well as POST data in an easy to manage way

2,Hackbar
https://addons.mozilla.org/en-US/firefox/addon/3899
Lets you modify URLs in a big huge box, makes SQL injections a lot easier to see and manage. Update for FF3 coming out next week.

3,Cookie Watcher
https://addons.mozilla.org/en-US/firefox/addon/1201
Watches cookies from the status bar

4,FireCookie
https://addons.mozilla.org/en-US/firefox/addon/6683
The above..but as a firebug plugin

5,Firebug
https://addons.mozilla.org/en-US/firefox/addon/1843
You MUST have this if your ever messing with sites. Easily allows you to view/edit source HTML as well as CSS and JS debuggin

6,ASNumber
https://addons.mozilla.org/en-US/firefox/addon/2072
Displays IP informatoin and more about the website your visiting

7,Form Free
https://addons.mozilla.org/en-US/firefox/addon/6727
In page input box editor. Allows you to edit hidden inputs as well as disabled.

8,HTTPFox
https://addons.mozilla.org/en-US/firefox/user/117846
Indepth HTTP Analyzer

Tamper Data
https://addons.mozilla.org/en-US/firefox/addon/966
Lets you modify headers as well as POST data in an easy to manage way