It's an extension to reduce your facebook addiction. It will learn the time you spend on facebook for a day and blocks access to it on an hourly basis.
Example-
If you used facebook from 8 PM to 9 PM for 30 mins then, at a learning rate of 50, it will reduce your facebook access time between 8 PM to 9 PM to 15 mins. The app gradually learns your habits and improves your productivity.
Quick Code
Quick Code