Google chrome web blocker

[ctl]

Hi guys, i want your help in some problem i want to resolve.I want to block all websites from google chrome and i want to creat a list of websites that i want to allow.I have used Stay focused extension for this, but the stay focused extension could be very easy deactivated.I was wondering if someone could help me with some program, that could run in hidden mode like this program: and i want for the program to have a password.I will put the program in the startup folder of my windows, and when the windows start the program will start(hidden), and block all website that are not in the allow list.I want something simple not complicate.Hope that someone could help me.Thanks.

Edited October 29, 2012 by ctl