StayFocusd is a productivity extension for Google Chrome that lets you restrict the amount of time you can spend per day on time-wasting websites. For instance, you could specify a 10 minute limit for Facebook and it will auto-block the website in your browser after that limit has passed.

You have the option to block entire domains or a subdomain – for instance, you may choose to block but not You can turn off StayFocusd on weekends, or allow it to only run on certain days of the week.

StayFocusd offers a Nuclear Option as well allowing you to block access to all website except for the work-related ones that you have put in the Allowed Sites. You can launch the Nuclear option on demand or at a scheduled time. It can block entire sites, or just selected elements like media files or images.