List of all Facebook logins and sessions by user. It shows graphs of time spent on Facebook for each user.
This extension of Google Chrome logs all Facebook sessions and login attempts. Clicking the icon added in the browser you can view statistics and graphs session times.
In addition, information is automatically synchronized between all computers where the user logs in with the same Google account. So you can control access to Facebook from another device.
An excellent parental control tool to monitor the use of Facebook of your children or your loved ones.