Great news for Ubuntu users: you can watch Netflix with the Google chrome browser v37 installed.
From the announcement at https://insights.ubuntu.com/2014/10/10/watch-netflix-in-ubuntu-today/
Thanks to recent efforts at Netflix and Canonical, Ubuntu now supports watching Netflix with Chrome version 37. Chrome is available to all Ubuntu users with up-to-date installations of Ubuntu 12.04 LTS, 14.04 LTS and later.
Netflix subscribers who already use Ubuntu can now watch simply by installing the Chrome browser .
Think this should also work with Google Chrome OS for Chromebook and Chromebox users.