Download Chrome Nanny
Chrome Nanny is the great Google Chrome extension that helps you limit your time browsing on a specific website. It is very useful when you spend time on an entertaining website such as a social network and you are not aware of time. It is also very useful to limit your children's time on a game webpage or a restricted website. You can configure this application to block a chosen website during a specific time, for example from 9am to 6pm. You can also set your browser to block a website after a certain time of being opened, for example 60 minutes. Download it free from this site.