I've tried enabling the Unity Plugin as described in this answer (https://askubuntu.com/a/717860/235839) (and several others).
Nothing changes.
When I try it again, I find that the plugin's checkbox isn't enabled. Apparently it un-enables it immediately after closing ccsm.
Is there some other way to enable the Unity Plugin--a command-line sequnce I could follow, perhaps?
sudo apt-get upgrade
– Punit Naik Feb 27 '18 at 21:33sudo apt update && sudo apt upgrade
on Ubuntu 16.04. – CascadiaJS Mar 10 '18 at 18:27