Not a chrome extension, but in the same vein of limiting distractions: https://github.com/amoffat/focus https://github.com/amoffat/focus It's a proxy DNS serve

Not a chrome extension, but in the same vein of limiting distractions: https://github.com/amoffat/focus https://github.com/amoffat/focus It's a proxy DNS server that runs locally, and based on user-defined rules (which can be anything that can be described with code), will limit your access to websites.