Error installing plugin for create.arduino.cc/edit

While attempting to install the browser plugin for the web editor (Arduino Create) I keep getting the error in the attached image.

This failure results in the certs never being generated or imported, and the editor reporting the following: “No Plugin Connection. Uploading is disabled until you reconnect.”

Some details about my environment: running windows 10, in networked environment with folder redirection enabled. Hence the \<white space in image>\AppData…

I’m hoping for non-admin users to be able to install the plugin, though so far, I have only been able to do it successfully as local admin.

I did see one post that was similar, but unsatisfactory.

Any ideas would be greatly appreciated!