Some websites, apps and extensions, such as Google Calendar, can show notifications on your computer desktop. Google Chrome alerts you by default whenever a site wants permission to automatically show notifications.
When you receive a notification, you’ll see a message appear in the lower right corner of your computer screen and an icon appear in the notification area (also called the system tray) on Windows and the menu bar on Mac. Click on the icon to open the Chrome Notification Centre to see older notifications that you have not dismissed.
Windows only: The notification area is a temporary source for notifications, so the Chrome Notification Centre may be hidden. If you don’t see your Chrome notifications expand the notification area to see hidden notifications.