I don't know if it's the same one he uses, but I use "Nanny" for chrome: https://chrome.google.com/webstore/detail/cljcgchbnolheggdgaeclffeagnnmhno https://chro

I don't know if it's the same one he uses, but I use "Nanny" for chrome: https://chrome.google.com/webstore/detail/cljcgchbnolheggdgaeclffeagnnmhno https://chrome.google.com/webstore/detail/cljcgchbnolheggdga... (or leechblock for firefox)