Clicking extension settings gears silently fails if the new Extensions application is not installed
On Fedora at least, this also triggers an ABRT notification for a gnome-shell-extension-prefs FileNotFoundError exception.
Tweaks should probably show a useful error message instead (e.g. "please install the Extensions app").
This bug probably should be linked to #272 (closed) as well.
Separately, I'll file bugs with Fedora for:
- Tweaks doesn't depend on Extensions.
- Extensions isn't listed in GNOME Software (!)