This is awesome! If there was a similar blocker for Mac, I'd totally use it. Although, I'm not sure why it is called "Focus".

But hey, this way I can share my Firefox plugin called Focus ( https://addons.mozilla.org/en-US/firefox/addon/focus-by-caba... ) - it lets you block websites so you can focus on your work :). Also available for Chrome ( https://chrome.google.com/webstore/detail/focus-by-cabana-la... ) =)