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.
Exciting News! ✨
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.
Here's what you can expect:
- Step-by-step installation: Getting started with Tab Mix Plus just got easier thanks to
- Modern design: Say goodbye to clutter and hello to a clean, contemporary interface that's easy to
- Improved search: Find the information you need instantly with my enhanced search functionality.
- Accessible everywhere: Whether you're on a desktop, tablet, or mobile phone, the responsive design
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.
Ready to take a look?
- Visit the new documentation web site.
- Learn how you can contribute to the docs.
🚨 Important 🚨
Update Your Firefox Scripts for Firefox 142 Compatibility
Table of Contents
Installation
- _Legacy_ extensions loader
Since Firefox removed the internal component that loads
1.1. Open about:support and locate the path to your Application Binary and **Profile
Folder**.
screenshoot
1.2. Install configuration files to your Application Binary folder.
fx-folder.zip files are packed with paths used by Firefox for Windows, Linux and MacOS
users 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.js to /usr/lib/firefox/config.js
* copy config-prefs.js to /usr/lib/firefox/browser/defaults/preferences/config-prefs.js
Linux with Snap
Compatibility Note:
Firefox snap for Linux versions 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 firefox in your terminal to check.
Copy the configuration files extracted from fx-folder.zip:
* copy config.js to /etc/firefox/config.js
* copy config-prefs.js to /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.js to Firefox.app/Contents/Resources/config.js
* copy config-prefs.js to Firefox.app/Contents/Resources/defaults/pref/config-prefs.js
1.3. Create chrome folder in your Profile Folder (if one does not exist).
1.4. Extract utils
folder inside the chrome folder, the result should be [PROFILE_NAME]/chrome/utils, all the
files should be in the utils folder (see the screenshot below).
screenshoot
1.5. Open about:support page 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.
- Download XPI
> 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) Note > that the latest development build is compatible with all supported versions of Firefox. (see > Browser Compatibility)
- Install XPI
Add-ons Manager tab (about:addons) and select Extensions. or Click the menu button
☰, click Add-ons and Themes and select Extensions.
- 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.
Troubleshooting
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
- Uninstall Tab Mix Plus.
- Close Firefox and reinstall the latest versions of these scripts (see instructions above):
- Extract utils
folder to chrome in your in your Profile Folder.
- Some users report that their Firefox is not able to install or use Tab Mix Plus unless they
extensions.experiments.enabled to true in about:config.
- Open about:support page and click "Clear startup cache…" to force Firefox to load the
- After Firefox starts Reinstall latest Tab Mix Plus again.
Browser Compatibility
Tab Mix Plus is fully compatible with the following browsers:
- Firefox 128 ESR - Nightly
- Zen Browser 1.7+
- Waterfox 6.5.0+
- Floorp 11.9.0+
- LibreWolf 122+
Firefox versions prior to 128 ESR are not supported.
For Pale Moon download Tab Mix Plus from
here
Configuration
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).
Docs
Read the docs (please 🙏):