A collection of extensions to manage Tabs.
Firebug along with a collection of extensions.
Collection of add-ons I am currently testing/reviewing for my personal needs. Rather than clutter my main profile I create a secondary profile solely for testing out new profiles.
Add-on's designed to extend Firefox's built-in Dictionary-Spell Check features.
Extensions that effect the way you view a webpage
The essentials of using Greasemonkey!
Add-ons dedicated to productivity
Add-ons geared towards the enhancement of firefox
Add-ons that support security for online browsing. These add-ons/extensions is all you need to cover your Privacy/Security while browsing the net. (Intermediate/Advanced)
Collection of add-ons dedicated to Syndication
Group of Add-ons that effect the interface and handling of links, etc.
A collection of add-ons that enhance Downloads & Download Manager
A collection of add-ons dedicated to the enhancement of Firefox Live Bookmarks
A collection of add-ons dedicated to the enhancement of Firefox Bookmarks and Manager
These two extensions are missing from this collection: Profile Switch (http://tiny.cc/oVCk6) & Snap Links Plus (https://addons.mozilla.org/collection/)