If you have "denied" the Desktop Notification on the browser and would like to reset the setting to re-request the notification, you'll want to do the following:
Currently awaiting new browser versions that support Desktop Notification
Google Chrome browser:
- Access the Google Chrome "Settings" -> "Privacy" -> "Content Settings" -> "Notifications" -> "Manage exceptions"
- Remove the permission for the web URL address associated with your PHP Live! system
- Access the operator console and refresh the desktop notification area to be able to re-request the notification.
- Click "Allow" to enable the Desktop Notification