Firefox Add-ons

http://adblockplus.org/en/installation
https://addons.mozilla.org/en-US/firefox/addon/add-to-search-bar/
https://addons.mozilla.org/en-US/firefox/addon/betterprivacy/
http://getfirebug.com/downloads
http://www.ghostery.com/download
https://addons.mozilla.org/en-US/firefox/addon/its-all-text/
https://addons.mozilla.org/en-US/firefox/addon/jsonview/
http://noscript.net/getit
https://addons.mozilla.org/en-us/firefox/addon/tamper-data/
https://addons.mozilla.org/en-us/firefox/addon/certificate-patrol/