My personal favourites, with search and progress integrated into the addressbar, Faviconised, permanent tabs and some space-saving features.
Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!
Dark theme for Firefox. Inspired by the night launch of STS-116.
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.
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
Thanks Tekzilla for your awesome review! Click here to see their video: http://youtu.be/BUDqWrJ-Vao
Note from Mozilla: This add-on has been discontinued. Try Updated Ad Blocker instead.
It blocks ads on the web pages you visit.
Add useful extra features to Gmail, like hierarchical labels, an unread message icon on your browser tab, file attachment icons, and more.
Bring back your personal and powerful Firefox Button!
This extension adds a new "FaviconizeTab" option to the context menu of the tab...
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