You can change your notification preferences for a website at any time. You can allow or block the notifications using the browser preferences:
- Open your browser (e.g. Chrome)
- Go to a website
- Click the green lock near the address bar to change your notification preferences for that website
- Change the website settings to allow or block the notifications
You can also block the notifications for a website when you receive a notification: click website settings (or a gear icon) inside the notification and remove the permission.