I think Mozilla FireFox the best internet browser . I’ve been using FireFox almost 8 years.  Since these years i found out some of the cool add-ons and started to use it.

Here i make a list for my favorite add-on. I hope you also enjoy as much as i do.

This is “The List”:


 

Number one and i think it deserve it. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.

 


Groove Shredder
This add-on enables you to download mp3 files directly from Grooveshark. After installation, a toolbar button will appear which allows you to easily toggle Groove Shredder on or off. When enabled, Groove Shredder will add a download button to Grooveshark’s Now playing section, and a link to the preferences at the top of the page. Must have add-on!


Helps you to save Web pages and easily manage collections. If you want to study web site styles it is a good start. Key features are lightness, speed, accuracy and multi-language support.

 


Xmarks is the #1 bookmarking add-on. It takes only a moment to get up and running with Xmarks. After you install the add-on, click on the notification to set up Xmarks and start backing up and synchronizing your bookmarks. Install Xmarks on each computer you use, and it seamlessly integrates with your web browser and keeps your bookmarks safely backed up and in sync.

 


Ant Video Downloader

Download videos from Youtube, Myspace, Google Video, DailyMotion, and many others, with the click of a button.

 

 


This extension allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.

 


Screengrab

Screengrab! saves entire webpages as images. Just right-click on the page you want to grab and look in the “Screengrab” menu.It will capture what you can see in the window, the entire page, just a selection, a particular frame… basically it saves webpages as images – either to a file, or to the clipboard.


User Agent Switcher

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.