With this extension the site's staff will be able to edit/add users directly from your site's frontend, without having to login the Joomla backend.

With DM Frontend User Manager you can set custom group rules from the backend admin to set wich group can see, edit, delete or add users from other groups. For example you can set a "Moderator" group that have the same Joomla permissions as the "Registered" group but it can edit any user from any group using the DM Frontend User Manager view.