Set maximum number of opened tabs in a window.
Amélioration du module Navigation Stats.
A better new tab experience.
Links to Weather via wttr.in and search via Duck Duck Go
A listing of top sites accessed through the topSites Firefox API.
Theme your new tab page with HD wallpapers of unicorns magic horses rainbows and stars! Perfect for My Little Pony and Horse fans
Hot Victoria's Secret Angels on every new tab! Enjoy HD images of beautiful and fashionable women that refresh with every new tab!
SpeedDial / visual bookmarks with groups for power users.
Now you can fit all your favorite sites into one fast speed dial in an organized fashion.
Dials are synchronized through Cloud to all your devices! For free!
Have new tabs redirect to a specified URL or display a personalized page with customized background color and wallpaper image.
Active Stop Button Requires Restart
Stop gif animation with button, context menu or Esc key
Art Up Your Tab shows you an enticing, inspiring painting or photograph from the rich collection of Europeana with every new tab or browser window that you open.
Float the toolbars over the page in full screen mode.
If the specified keyword exists in the URL, it is an add-on that stands out in red.You can set multiple keywords.
Vertical tab bar for Firefox 55+
Too many open tabs? Manage your tabs, regain your sanity and improve your browsing experience with tabzen.
Save and restore you tabs whenever you need them.
Edit, annotate and organize your tabs.
Export, import to and from HTML file.
This simple addon opens links in a new active tab with Shift+LeftClick (left mouse button click), not in a new window
Mainly for users, who used this shotcut in other browsers (e.g. Opera 12).
You can select your own mouse + mod key combination.
Snooze tabs to open at a specific time
Web Extension for Firefox Mozilla that interacts with BookmarkSite.eu and makes possible to manage bookmarks in the cloud.
Duplicates the current tab when you click the icon.
Source, issues: https://github.com/Skeletonxf/duplicate-tab/