Provides extra tree manipulation commands for Tree Style Tab.

Edit in Firefox the page displayed in any tab, with formatting tools.

Select audio output device for each tab.

Maximize HTML5/Flash video and fill current tab.

Allows you to view documents and other files online with the google docs viewer.

Detect streamable video and audio sources and offer to play them in VLC multimedia player

The Quantum-compatible version of the old favorite. Open daily websites with the click of a button! Users can customize lists for each day of the week, as well as an "every day" list.

Optionally use Internet Download Manager instead of the built-in download manager to get large files

Opens selected links in new tabs

1. Highlight a selection using left click
2. Right click and the option will be in the context menu

Source code at Github

Provides ability to copy title and URL of selected tabs to the clipboard.

Keep your computer's screen from turning off with just one click.

Open current page, link, or all tabs in the Microsoft Edge™ browser

Provides nine easy keyboard shortcuts to open new tabs on different containers: Ctrl+Shift+[1-9] / or Alt+Shift+[1-9] on OSx.

Provides a simple interface to change tab title and option to use bookmark name as tab title.

This extensions is part of the new Tab Mix WebExtension collection that will eventually replace the legacy Tab Mix Plus extensions.

Rich shortcuts for you to click links / switch tabs / scroll pages or DIVs / capture full page or DIV etc, let you use the browser like vim, plus an embed vim editor.

https://github.com/brookhong/Surfingkeys

Mute Tabs based of URL.

Save web page as a pdf file.

Replace ugly favicon by using your own images!

Favicon Switcher allows you to customize the favicons for the sites that you visit. All you need to do is simply giving a url pattern and picking an image.

Happy Browsing!

List the URLs of all tabs from the current window as copyable plaintext. Also this extension can load a plaintext list of urls to individual tabs.

Open With for Internet Explorer sends pages from Mozilla Firefox to Internet Explorer.

A simple tab counter.
Shows number of open tabs.

Send streamable media from current tab to VLC (VideoLAN) media player

Sort tabs by various criteria

This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.

Ever wonder how good it will be to auto repeat your favorite songs and videos from Youtube. Now you can experience to your songs favorite songs and videos on loop with this addon.

PS. Also works with Facebook.

Automatically closes inactive tabs and makes it easy to get them back

This extension enables support for opening links in specific containers using custom protocol handler. It works for terminal, OS shortcuts and regular HTML pages.

Add a custom useragent string for desired URLs or domains.

Show tabs in a sidebar grouped by privacy containers.

Hide and unhide tabs. To use this extension you need to set extensions.webextensions.tabhide.enabled to true in about:config page.