1. At the top right, click More and then Settings.
  2. Under "Privacy and security," click Site settings.
  3. Click Notifications.
  4. Choose to block or allow notifications:
    • Allow or Block all: Turn on or off Sites can ask to send notifications.
    • Block a site: Next to "Block," click Add. Enter the site and click Add.
    • Allow a site: Next to "Allow," click Add. Enter the site and click Add.