Make 'Open in Tabs' replace existing tabs, like it was in Firefox 2.
No Close Buttons No Restart
In Firefox 31, the browser.tabs.closeButtons option was removed. This addon forces what previously used to be a value of 2 for that option: no close buttons on any tabs.
Undo Close Tab Replacement No Restart
Replaces the "Undo Close Tab" menu item with the "Recently Closed Tabs" submenu.
Tab Utilities's compatibility fixes release.
Open Bookmarks/History/Homepage/URL/Search in new tabs, and more utilities for tabbed browsing. This is a lite version of Tab Utilities (http://addons.mozilla.org/addon/59961).
Workaround: Bug 489729 - Clicking a tab once and then moving your mouse in a downward motion causes a new window to open.
Optionally(If you want):
Disable detach tab completery, Enable to create Shortcut on the desctop/explorer.
Opens all images from a page into a new tabbed window. Great for image focused sites like reddit, 4chan, tumblr etc.
Hide Caption Titlebar Plus No Restart
"Maximize your screen space by adjusting Firefox window TitleBar, borders, Tabs, Toolbars, etc!", with 'smart' options, *optional* custom caption & resizers.
Multiple Configurable Actions for both screen-corner buttons: Firefox & Close buttons!
History Submenus II No Restart
Add sub-menus to History Menu for previous days' history.
Location Bar Enhancer No Restart
Changes the Location Bar of Firefox into a Breadcrumb display with rich and interactive features.
BackTrack Tab History No Restart
Links that are opened in new tabs (and optionally in new windows) retain the "back" (session) history from the parent window.
Instant access to the best websites related to the site you are browsing!
Spell Tab assigns urls to number keys. (options menu). Then when you press ctrl, release it, and then press a number key(within a sec) the associated url opens in a tab. If the url already exists in another tab then view switches to that tab.
Copy multiple urls (links) to clipboard. Provides options to copy urls of all opened tabs and urls in selected text. You can customize the format of copied urls. You can also open multiple links from clipboard.
Prevent Tab Overflow No Restart Featured
Make sure your tabs stay visible all the time.
Tab Groups Button No Restart
Widget and toolbar for panorama
Close Other Tabs By Double-Click No Restart
Close other tabs by double-clicking the one you want to keep
Exports Firefox sessions to HTML files or saves them to your bookmarks. If your session includes tab groups, your tabs are grouped accordingly.
Paste Onto New Tab Button No Restart
Allow pasting links into the New Tab toolbar button using the middle mouse (like what happens when you middlemouse click in a webpage on Linux with autoscroll off, but in a new tab).