Open new tabs always to the right of the current one.
Live new tab page: living photos in your browser, weather, to-do list, and bookmark tiles
My Homepage Requires Restart
My Homepage is a very useful extension which loads your Home Page whenever you open a new tab.
ZhyperMU GrudgeMU FortressMU Requires Restart
ZhyperMu, GrudgeMU, & FortressMU Add-on
View Page Source in New Tab, Current Tab or New Window
Click&Clean Requires Restart
The quick and easy way to delete your browsing history, erase all temporary internet files, remove downloaded files history, cookies, Flash LSO, typed URLs. Allows to delete private data when Firefox closes. Supported ext. tools like CCleaner.
Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks
focus tabs on mouse-over
This add-on brings back the ability to change the page which is shown when opening a new tab.
Hugo Search All Tabs Requires Restart
Search all loaded tabs- similar to Find in Tabs, etc. except has much more functionality. This is a comprehensive tool designed for doing research. Please see screen shots and description.
SubmitToTab Requires Restart
Allows you to submit a form to a new tab or window. Simply middle-click on a submit button, or hold down the ctrl key before clicking on the...
Save sessions as bookmarks and sync them through Firefox Sync.
Manage, edit, save, restore.
Session-Sync will automatically detect updates and display updated sessions across multiple machines.
Since Firefox 25, the FindBar was made independent for each tab. This addon reverts the FindBar to classic/global behavior.
Tab Utilities Fixed Requires Restart
Tab Utilities's compatibility fixes release.
Customize about:newtab Requires Restart
Since version 13, Firefox has the new about:newtab page, which is great...but you can't change the background! This addon solves that.
Now you can change the background color and/or choose an image.
Blacklist some websites from showing up in Firefox 4's new switch-to-tab feature.
Add page address to tab tooltip
Facilitates opening multiple tabs from the Bookmarks Menu and various other bookmark/history related dropdown menus. Less need to keep reopening menu, without needing to use the bookmarks sidebar. Optional auto-closing feature adds extra convenience.
Context Search Requires Restart
Expands the context menu's 'Search for' item into a list of installed search engines, allowing you to choose the engine you want to use for each search.
NOTE: THIS ADD-ON NO LONGER WORKS AS OF FIREFOX 48.
Click the rocket icon on the add-on bar to turn the current tab into a desktop app. In Mac, the app shows up in your Applications folder, for example. EXPERIMENTAL.