Since the remove buttons are no longer available in gnome-shell 3.26, the only way I know is deleting the extension directory itself. Open the console. Go to the extensions directory: cd ~/.local/share/gnome-shell/extensions List the extensions and get the name of the unwanted extension: ls -l Delete the extension directory: rm -r extension@author Reload gnome-shell. Press ALT + F2, type r and press ENTER. There are two folders for gnome-shell extensions: ~/.local/share/gnome-shell/extensions for user-side /usr/share/gnome-shell/extensions for system-side https://askubuntu.com/questions/937284/how-can-i-update-gnome-shell-extensions-from-the-command-line https://github.com/NicolasBernaerts/ubuntu-scripts/blob/master/ubuntugnome/gnomeshell-extension-manage