This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.
Navigator.push read-only property is a
PushManager object providing a way to receive notifications from third party servers. These are real-time notifications provided by external services directly to installed apps. This implements the SimplePush API that does not require sending real data on those notifications. Also, you can see this documentation for additional details, a guide to using the API, and sample code.
var push = window.navigator.push;
navigator.push is a
|Push API||Working Draft||Non standard|
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari|
|Basic support||Not supported||Not supported||Not supported||Not supported||Not supported|
|Feature||Android||Chrome for Android||Firefox Mobile (Gecko)||Firefox OS||IE Mobile||Opera Mobile||Safari Mobile|
|Basic support||Not supported||Not supported||
18.0 (18) moz
|1.1 moz||Not supported||Not supported||Not supported|