Polls the server more often to get current alerts and inboxes quicker. And shows an alert indicator in the favicon or a text based indicator in the title of the page.
To change the update interval go into the ACP and either type "Live Update" into search or navigate to Options > Live Updates Options. Change the "Live Update Interval" option to your desired update interval (in seconds).
Users can also control the appearance of the count in their Preferences:
Version 2.0 was entirely developed by Robbo, full credit goes to him! I am simply maintaining it.