FIREFOX,Featured by mozilla is world’s best web browser,its best for me too as it provides collosal features which includes less cpu usage,more internet speed,customable appearance,HTTP encoding,Most softwares compatibility and most useful ADD-ONS.

Add-ons or plugins can make a web browser fearturefull.HERE i present the most popular and useful ADD-oNS for FIREFOX…
i Have collected addons of firefox 3.6 as its most compatible version and popular too…
HAVE A GLANCE AT THESE ADD-ONS…there’s download link with it too..

Adblock Plus

Annoyed by adverts? Troubled by tracking? Bothered by banners? Install Adblock Plus now to regain control of the internet and change the way that you view the web.

Greasemonkey

Customize the way a web page displays or behaves, by using small bits of JavaScript.

Flagfox

Displays a country flag depicting the location of the current website’s server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more…

DownThemAll!

The first and only download manager/accelerator built inside Firefox!

Stylish

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

FireGestures

A customizable mouse gestures extension which enables to execute various commands and user scripts with five types of gestures.very funny and innovative..

Speed Dial

FIREfox speed dials same as opera but better than it…

ImTranslator

ImTranslator includes Online Translator in 1640 language combinations for Albanian, Arabic, Bulgarian, Catalan, Chinese (Simp.), Chinese (trad.), Croatian, Czech, Danish, Dutch, English, Estonian, Filipino, Finnish, French, Galician, German, Greek, …and manyy more…

Easy YouTube Video Downloader

AUTOMATIC you tube downloading ….really easy.just open the URL and ll be easy to download any VIDEO from YOUTUBE.

FoxTab

3D in your browser! FoxTab brings innovative 3D functionality to your Firefox.new top sites available here!!

HOPE YOU LIKE THIS..I WILL POST MORE USEFUL ADD-ONS AND YOU CAN SUGGEST ME TOO..thanx FOR VIEWING..