GNU/Linux Ubuntu 18.04 Installing GNOME Extensions App – Quick-Start Guide
You are Welcome! The Tutorial Shows You Step-by-Step How to Install GNOME Extensions App Flatpak App in Ubuntu 18.04 Bionic LTS GNU/Linux Desktop.
And GNOME Extensions App for Ubuntu Bionic handles Updating Extensions, Configuring Extension Preferences and Removing or Disabling them.
Especially relevant: starting from the GNOME 41 release the Shell Extensions are not any more manageable by the Tweaks but just with the App.
1. Launching Terminal
Open a Terminal window
Ctrl+Alt+t on Desktop
(Press “Enter” to Execute Commands)