LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
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.
Integrates location bar and search bar into one. Shows search and url suggestions. Quickly switch search engine using search keywords. Provides different auto-complete popup styles for compact displays.
Tweak Network will speed up the loading of web pages and increase the maximum number of simultaneous downloads from a site.
Bring back your personal and powerful Firefox Button!
New Tab King is the premier extension for turning your new tab page into a beacon of productivity and efficiency.
Featuring a todo list, recently closed tabs, most visited pages and more!
Tons of visual customization option too!
This extension adds a new "FaviconizeTab" option to the context menu of the tab...
NO LONGER MAINTAINED.
Automatically inserts HTML signatures into your Gmail messages based on which address you are sending from. Maintain up to four signatures per address.
USE BETA VERSION: http://goo.gl/FdyXq (v1.18.6b)
Fission combines address bar and progress bar (Safari style). This makes the progress bar more visible and allows for a nice visual effect.
Collections are groups of related add-ons that anyone can create and share.Explore Collections