Lets start describing your favourite plugins for firefox so that others who dont know them may come to know of it.
i will start of with these are some of my fav plugins that I use
fireftp
FireFTP is a free, secure, cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers.
Along with transferring your files quickly and efficiently, FireFTP also includes more advanced features such as: directory comparison, syncing directories while navigating, SSL encryption, file hashing, and much more!
https://addons.mozilla.org/firefox/684/
Tab mix plus
Tab Mix Plus enhances Firefox’s tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager with crash recovery that can save and restore combinations of opened tabs and windows.
https://addons.mozilla.org/firefox/1122/
Colorful Tabs
The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color and makes them easy to distinguish while beautifying the overall appearance of the interface. An essential.
https://addons.mozilla.org/firefox/1368/
FoxyProxy
FoxyProxy is an advanced proxy management tool that completely replaces Firefox’s proxy configuration. It offers more features than SwitchProxy, ProxyButton, QuickProxy, xyzproxy, ProxyTex, etc:
https://addons.mozilla.org/firefox/2464/
Cooliris Previews
Cooliris Previews 2.1 for Firefox gives you the power to browse faster and send links instantly.
• Simply mouse over the Cooliris link icon, and a preview window will instantly appear to show you the underlying content. No more clicking back and both, or leaving your current page.
• To email a link instantly, just right-click on any web page.
• Right-click on any phrase to have Cooliris automatically do a subsearch in Google, Wikipedia, or a dictionary.
https://addons.mozilla.org/firefox/2207/
Download Statusbar
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
