firefox浏览器插件：

flashgot     autoproxy    

Tamper Data     cookie importer

Cookies Manager    User Agent Switcher 

HackBar     Live http header       firebug   Download YouTube Videos as MP4

Flagfox          hashr

https://addons.mozilla.org/en-US/firefox/addon/xss-me/

https://addons.mozilla.org/en-US/firefox/addon/sql-inject-me/