I got a helpfull hint. I had to install Gnome tweak and Activate Extension for Gnome shell.
I would propose to add a prompt. If I try to activate a gnome-shell extension but the use of the extension is deactivated request to activate it. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1246677 Title: gnome shell extensions disabled Status in gnome-shell package in Ubuntu: Incomplete Bug description: As of the last update from the gnome3-staging PPA, all of my shell extensions have been disabled. Going to the gnome extensions website shows that none of the extensions are compatible, even those formerly installed and compatible with 3.10. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1246677/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
