Limit Active Logins - With this Joomla 3 extension you can limit the usage and prevent multiple users from using the same account. You can set the number of active logins for a group of users, countries, continents or an individual user, browser. If the number of logins is exceeded, the user will receive an error message. You can also set a limit on the number of logins per browser. The administrator can view user information (IP address, sessions, operating system, country, and browser).