Show Desktop Notification Using JavaScript

   <html>
   <head>
       <title>javascript - Desktop notification</title>
       <script>
           function ShowNotification() {
               if (!("Notification" in window)) {
                   console.log("This browser does not support desktop notification");
               }
               else if (Notification.permission === "granted") {
                   var notification = new Notification("Demo title", {
                       icon: 'Images/end-chat.png',
                       body: 'This is a simple desktop notification'
                   });
               }
               else if (Notification.permission !== 'denied') {
                   Notification.requestPermission(function (permission) {
                       if (!('permission' in Notification)) {
                           Notification.permission = permission;
                       }
                       if (permission === "granted") {
                           var notification = new Notification("Demo title", {
                               icon: 'Images/end-chat.png',
                               body: 'This is a simple desktop notification'
                           });
                       }
                   });
               }
           }

       </script>
   </head>
   <body>
       <button onclick="ShowNotification()">Show Notification</button>
   </body>
   </html>


It works on all major browser if you run this code using valid site url, you can prefer firefox for quick output.