Desktop Notifications plugin will allow your logged-in staff members (with HostBill opened somewhere in the browser) to receive desktop notifications anytime anyhting important happens in your HostBill installation.
Modern browser is required to use this feature. When module is enabled you can test whether it will work for you in the module details page (Settings → Modules → Plugins)
The plugin is free and available to all HostBill users. In order to activate the plugin go to Settings→ Modules→ Plugins → Inactive, find and activate Desktop notifications plugin. If module is not on your list, make sure to update to latest HostBill version first.