Block YouTube in Chrome, Safari
I have a customer who wants to block all access to YouTube in all browsers. Their child has to have Chrome for some school work, so Parental Controls doesn't cut it since it only blocks Safari. I can use extensions like Block Site for Chrome, but it doesn't block embedded videos. So, if you use something like DuckDuckGo.com you can watch the videos there.
How can I block something like YouTube for all browsers? Does something like NetNanny do this?
Whatever we use the customer should be able to turn off when the child needs access, then easily switch it back on. Turning off for a set time would be great.