http://adblock.mozdev.org/
https://addons.mozilla.org/firefox/2390/ - VideoDownloader
https://addons.mozilla.org/firefox/1593/
http://sessionmanager.mozdev.org/
https://addons.mozilla.org/firefox/1955/
https://addons.mozilla.org/firefox/433/
https://addons.mozilla.org/firefox/139/
https://addons.mozilla.org/firefox/1419/
https://addons.mozilla.org/firefox/3082/
Полезность сомнительна:
https://addons.mozilla.org/firefox/2410/
https://addons.mozilla.org/firefox/2110/
https://addons.mozilla.org/firefox/2134/
https://addons.mozilla.org/firefox/1122/
https://addons.mozilla.org/firefox/2570/
https://addons.mozilla.org/firefox/3104/
https://addons.mozilla.org/firefox/2109/
