You're an administrator, you want to manage all users on your phpFox site. This tutorial will show you how to login as another user without entering a password.
This assumes you are already logged in as the Admin user and are logged into the AdminCP.
In AdminCP, select Members >> User Group Settings and then select "User" from "Apps" drop down, "Administrator" from "Groups" drop down
Find and enable "Can members of this user group log in as another user without entering a password?" setting
Select Save Changes to save the settings.
Now, to login as another user, go to Members >> Browse Users and then select setting icon from the user who you want to login as
