This article is in need of a technical review.
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.
Specifies an event listener to receive
connectionInfoUpdate events. Those events occur when the device's WiFi connection information changes.
navigator.mozWifiManager.connectionInfoUpdate = funcRef
Not part of any specification.