The idea behind the Application Boundaries Enforcer (ABE) module is hardening the web application oriented protections already provided by NoScript, by developing a firewall-like component running inside the browser.
Wiki on Flash Security (maintained by fukami)
Sammlung von probing tools. Ausprobieren!
Kleine XSS-Seite zum selber üben
BrowserSpy can tell you all kinds of detailed information about you and your browser. Stuff like the version of your browser. What kind of things it supports and what it doesn't support. Furthermore it can provide you detailed information about JavaScrip