Access Me 0.2.3/0.2.4 An extension to test for page access vulnerabilities (session tampering).
Add N Edit Cookies 0.2.1.3 Cookie Editor that allows you add and edit session and saved cookies.
Advanced Dork 2.3.3.6 Gives quick access to Google's Advanced Operators directly from the context menu. (Live DVD)
DOM Inspector 2.0.0/2.0.8 inspect the structure and properties of a window and it contents.
Firebug 1.3.0/1.5.4 Web Development Evolved.
FoxyProxy Standard 2.22.1 Premier proxy management for Firefox. (Live DVD only)
Greasemonkey 0.8.20080921.0/0.8.20100211.5 A User Script Manager for Firefox
HackBar 1.4.2/1.5.0 A toolbar that helps you fin and test SQL injections
Header Spy 1.3.3.3/1.3.4.2 Shows HTTP headers on statusbar
JavaScript Deobfuscator 1.5.5 Shows you what JvaScript code gets to run on webpages (Live DVD only)
JSView 2.0.5 View the source code of external stylesheets and javascripts.
RefControl 0.8.13 Control what gets sent as the HTTP Referer on a per-site basis.
SQL Inject Me 0.4.4/0.4.5 An Extension to test for SQL injection vulnerabilities
SQL Injection! 1.3 Set all form fields free to test SQL injections.
SwitchProxy Tool 1.4.1 A Tool that allows you to manage and switch between multiple proxy configurations quickly and easily. (VM only)
Tamper Data 10.1.10/11.0.1 View and modify HTTP/HTTPS headers etc. Track and time requests.
Ubuntu Firefox Modifications 0.7/0.9rc2 Ubuntu Firefox Pack.
User Agent Switcher 0.7.2 Adds a menu and a toolbar button to switch the user agent of the browser. (Live DVD only)
View Dependencies 0.3.3.1 Adds a tab listing dependencies and their sizes in the Page Info window. (Live DVD only)
View Source Chart 3.02 Source Charting DOM Inspector (Live DVD only)
Wappalyzer 1.9.4 uncovers the technologies used on websites (Live DVD only)
Web Developer 1.1.6/1.1.8 Adds a menu and a toolbar with various web developer tools.
XSS Me 0.4.3/0.4.4 An extension to test for Cross Site Scripting vulnerabilities.