Let’s proceed further and know about how to then open Chrome and from the top right, choose more and then settings. Click toadvanced at the bottom. Look for content settings under the privacy and security section, and tap to it. Scroll down to notification section and tap to it. Here, find the ask before sending setting. The toggle is on by default and it will ask you if you want to receive notifications from any site. Ensure to ask before sending toggle is on. Search for Facebook.com in allow section and then choose three-dot icon and select block. You will be ask to receive all notifications except the one from Facebook.