50 Best Firefox Extensions for Powerful Browsing – Part-1
Below we have given you the list of 50 Firefox add-ons by which your Firefox browser experience will become better.
Adblock Plus
It is one of the most important Firefox add-on due to which any advertisements will not appear on any webpage, in this way it blogs all advertisements.

Aging Tabs
It fades the unused tabs and highlights the tabs which we have selected.
All-in-One Sidebar
It controls the side bar with award winning user experience.
Auto Copy
It automatically copies down the text to clipboard, it is the same thing that happens in Linux or mlrc.
Auto Pager
Auto Pager is such extension of Mozilla which loads the next page automatically in the background.
Better GCal

Using the compilation of user scripts styles, it enhances Google Calender. All rights of scripts are reserved by their original authors. For more information you can click on the script homepage in the help tab.
Better Gmail 2
Using the compilation of useful features that are written by Greasemonkey, it enhances Gmail. All rights of scripts are reserved by their original authors. For more information you can click on the script homepage in the help tab.
Better You Tube
It comes with the compilation of useful Greasemonkey user scripts for You Tube. All rights of scripts are reserved by their original authors. For more information you can click on the script homepage in the help tab.
ColorZilla
It provides Advance dropper, Color Picker, Page Zoomer and other colorful goodies
Cooliris
For the purposes of searching, viewing and sharing the web Cooliris (formerly called PicLens) transforms your browser into a full-screen 3D Wall.
Customize Google
Its function is to enhance Google search results and remove ads and spam.
Delicious Bookmarks

It enables you to access your bookmarks from any place, at any time and helps you to keep them organized no matter how many they are.
Download Helper
Using this we can download videos and images from a large number of sites. It is considered to be the best tool for downloading videos from You Tube etc.
FEEBE
It creates a backup of our Firefox data.
Fire.fm
It gets you your daily music fix from Last.fm.
Firefox Universal Uploader (fireuploader)

It gives us a user friendly interface for uploading files to various websites e.g. Box.net, Flickr, YouTube, Picasa, Facebook.
FireFTP
For Mozilla Firefox it is FTP Client.
FlashGot
Its function is to enable single and massive (all and selection) downloads using most popular download managers that works for Windows, Mac OS X, Linux and FreeBSD.
FoxClocks

This Add-on displays the local times of all the countries of the world in the statusbar/toolbar. It virtually supports all time zones.
FoxyProxy
FoxyProxy is the Premier proxy management for Mozilla Firefox.
FoxyTunes
Its function is to control the media player of any type from Firefox and much moreā¦
gDocsBar
This Add-on is a perfect companion for Google Docs.
Gmail Manger
Its function is to manage Gmail accounts and new email notifications.
GmailSpace
This Add-on use your Gmail account space for file storage. It enables the uploading and downloading of folders.
Google Preview
This Add-on inserts the previews of websites in Google and Yahoo search results.
You might also like
| Firefox Ultimate Optimizer 2009 Firefox is my favorite browser ever. I love it because I can open as many tabs as I want in a single... | The Latest Firefox 4 Beta The newly launched Firefox 4 is an upgrade of the the previous version which has enhanced features such... | Friends don’t Let Friends Use Internet Explorer Good friends don't let friends use Internet explorer. I hope you will spread this poster to increase... | Firefox 3.5 RC2 Now Publicly Available On Monday the second release candidate (RC) for Firefox 3.5 has been unveiled by Mozilla. Firefox 3.5... |












Only one I disagree with is the Foxyproxy addon, the rest I agree, diskeepr is pretty awesome like you said, for instance!