Tab Mix Plus is a very popular legacy extension for the Mozilla Firefox browser that enhances Firefox's tab browsing abilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more.
Session Manager feature is not included at the moment since it requires complete rewrite.
If you are interested in keeping Tab Mix Plus working, please donate.
Excited to Announce a New Home for Tab Mix Plus Documentation!
I'm thrilled to share the launch of a brand-new website dedicated to the Tab Mix Plus extension documentation! If you've been looking for clearer instructions, smoother navigation, and an overall better experience with Tab Mix Plus documentation, this site is for you.
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Step-by-step installation: Getting started with Tab Mix Plus just got easier thanks to detailed instructions and troubleshooting tips. Read More
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Modern design: Say goodbye to clutter and hello to a clean, contemporary interface that's easy to read and navigate.
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Improved search: Find the information you need instantly with my enhanced search functionality.
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Accessible everywhere: Whether you're on a desktop, tablet, or mobile phone, the responsive design ensures a smooth experience.
I encourage you to explore the new documentation website and share your feedback! Your input is invaluable in helping me continuously improve the documentation and make it even more helpful for everyone.
- Visit the new documentation web site.
- Learn how you can contribute to the docs.
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Legacy extensions loader
Since Firefox removed the internal component that loads legacy extension, in order to install Tab Mix Plus, or any other legacy extension, you have to install 3rd party helper scripts.1.1. Open
about:supportand locate the path to your Application Binary and Profile Folder.screenshoot
1.2. Install configuration files to your Application Binary folder.
fx-folder.zipfiles are packed with paths used by Firefox for Windows,LinuxandMacOSusers should follow the instructions below.Linux
Note: The default path to Firefox on Linux is typically
/usr/lib/firefox/.Verify the path:
Check the actual path to your Firefox Application Binary. If it differs from
/usr/lib/firefox/, replace the path accordingly in the following instructions.Copy the configuration files extracted from
fx-folder.zip:- copy
config.jsto/usr/lib/firefox/config.js - copy
config-prefs.jsto/usr/lib/firefox/browser/defaults/preferences/config-prefs.js
Linux with Snap
Compatibility Note:
Firefox snap for Linuxversions prior to 108 are not supported.Instructions for Firefox snap 108 or newer
Verify installation path:
If you're uncertain about the installation path of your Firefox snap, use the command
snap list firefoxin your terminal to check.Copy the configuration files extracted from
fx-folder.zip:- copy
config.jsto/etc/firefox/config.js - copy
config-prefs.jsto/etc/firefox/defaults/pref/config-prefs.js
Create subfolders if necessary
If the folders /defaults or /pref don't exist within /etc/firefox/ create them.
MacOs
Note:
The default path to Firefox on MacOs is typically
Firefox.app/Contents/Resources.Verify the path:
Check the actual path to your Firefox Application Binary. If it differs from
Firefox.app/Contents/Resources, replace the path accordingly in the following instructions.Copy the configuration files extracted from
fx-folder.zip:- copy
config.jstoFirefox.app/Contents/Resources/config.js - copy
config-prefs.jstoFirefox.app/Contents/Resources/defaults/pref/config-prefs.js
1.3. Create
chromefolder in your Profile Folder (if one does not exist).1.4. Extract utils folder inside the
chromefolder, the result should be[PROFILE_NAME]/chrome/utils, all the files should be in theutilsfolder (see the screenshot below).screenshoot
1.5. Open
about:supportpage and click "Clear startup cache…" to force Firefox to load the installed scripts on the next startup.1.6. Start Firefox again.
1.7. Follow the instructions below to install
Tab Mix Plus. - copy
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Download XPI
Download xpi file from our releases page to your local computer.
All Tab Mix Plus downloads are also located here.
If you are using Firefox Beta, Developer Edition or Nightly we recommend using the latest Tab Mix Plus development build (tags with pre or test-build in the title)
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Install XPI
To install the file you have just downloaded:
- Open
Add-ons Managertab (about:addons) and selectExtensions. or Click the menu button ☰, clickAdd-ons and Themesand selectExtensions. - To add the downloaded add-on to the list of available add-ons, drag and drop the file into the Add-ons window. The add-on is added to the list.
- The installation process should begin.
- Open
If Tab Mix Plus stops working after Firefox update was installed or when you try to install Tab Mix you get a message that it appears to be corrupt, follow these instructions
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Uninstall Tab Mix Plus.
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Close Firefox and reinstall the latest versions of these scripts (see instructions above):
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Install configuration files to your Application Binary folder.
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Extract utils folder to
chromein your in your Profile Folder.
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Some users report that their Firefox is not able to install or use Tab Mix Plus unless they set
extensions.experiments.enabledto true inabout:config. -
Open about:support page and click "Clear startup cache…" to force Firefox to load the installed scripts on the next startup.
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After Firefox starts Reinstall latest Tab Mix Plus again.
- Firefox 115 ESR - Firefox Nightly
- Waterfox G3 - G6 and beyond
Firefox versions prior to 115 ESR are not supported.
For Pale Moon download Tab Mix Plus from here
Tab Mix Plus comes with Options window that includes all of its preferences as well as adding user interface to important Firefox hidden preferences. It is recommended that you make all changes to the preference in the options window. The options window is available from the Add-ons Manager or from the Tools menu (unless you turn this option off).
Read the docs (please 🙏):