Looking to provide remote access to a single PC but *only* its web browser?

Essentially I would like to be able to navigate to some custom domain that I own, log in to some basic front end, and then have access via a Remote Access Tool to my Linux computer (which would only have open a web browser). I would like to also restrict any accessing parties to only being able to use the web browser (and even then, not be able to change the size of the window, close the browser, etc). I think I can accomplish all of this except restricting what the parties can do once they are in the Remote Access "Portal", and candidly I don't know where to start. Any advice would be appreciated. Thanks.