Gnome Tweaks, one of the must-have apps for configuring Ubuntu, will remove support for GNOME Shell Extensions with the release of version 40.
This means that the next Ubuntu release that ships with Gnome 40 and later will require you to use a different tool to manage Gnome Shell Extensions.
If you’ve tried Fedora 34, you should see the prompt “Extension management moved to GNOME extensions” the first time you launch Gnome Tweaks.
The “new” tool “GNOME Extensions” is available for Ubuntu 20.04 LTS and later Ubuntu universe repositories. If you don’t have one, press Ctrl + Alt + T on your keyboard to open a terminal and run the command to install it.
sudo apt install gnome-shell-extension-prefs
Then you can open it from the system app launcher.
Gnome Tweaks[拡張機能]Unlike tabs, the GNOME Extensions tool displays the built-in Gnome Shell extensions and user-installed extensions separately.
In addition to the slider icon that turns extensions on and off and the gear button that changes extension settings, there is a triangle icon after each extension. Click the icon to expand the extension, display a brief description and website, and remove the button.
In addition, Fedora users can get the tool by installing it.
gnome-extensions-app package. Other Linux with Gnome desktop flatpak package..