We find a large number of bugs are caused by extensions and you have a few installed:
'gsconn...@andyholmes.github.io' 'openweather-extens...@jenslody.de' 'sound-output-device-choo...@kgshank.net' 'move_cl...@rmy.pobox.com' 'gnom...@panacier.gmail.com' 'arc-m...@linxgem33.com' 'sensory-percept...@harlemsquirrel.github.io' 'temperature@xtranophilist' Please try uninstalling all of them (don't just disable them), and then tell us if the bug still occurs. ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1841774 Title: gnome-shell freezes and continuously logs "JS ERROR: TypeError: null has no properties" in _addWindowEffect from vfunc_show (both in closeDialog.js) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1841774/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs