OK, are you running a multiple screen setup? If so, several users report that the extension does not work with multiple screen setups.
Also, I assume you installed the extension by simply clicking on the toggle button on the Gnome Extensions website correct? You didn't try to download the extension and install it manually right? You just clicked the toggle and had it do it for you right?']
On the Gnome Extensions website, is the toggle button RED in color? If its RED that indicates the extension is in ERROR and not working. If you don't see the word ERROR and a bunch of RED color on the toggle, then the extension should be ok.
I have no idea what is going on, I am grasping at straws here.





