best unknowed firefox addons

add to search bar   need more search engines ? this is for you










download auto-resume   this addon will auto resume your downloads when it fail (non if you stop it)







uacontrol   if you want youtube mobile or twitter mobile without toch other sites try this :)










 





block content  make you can Block download of any of the following: Image, Script, Stylesheet, Font (@font-face), Audio/Video, IFrame, Object (like flash and java applets)