If you are planning on watching Amazon Prime Video on Ubuntu, you should be aware of how to enable DRM in the default web browser (currently Firefox) that is installed for you.
On Microsoft Windows or Apple macOS, you do not have to know how to disable or enable DRM as it is done for you by default but on Ubuntu, this must be turned on since it can affect your privacy. If you are planning on streaming other sites or utilizing any free Internet browsers not shipped with Ubuntu, be sure to load up the Terminal and execute sudo apt install ubuntu-restricted-extras or the moment after you install GParted to the system.
Error Messages Seen
* Digital Rights Error
* Protected Content Error