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.
ContactManager to access and manage all the contacts available on the device.
var contacts = window.navigator.mozContacts
|Contacts Manager API
The definition of 'Contacts Manager API' in that specification.
|Working Draft||First Working Draft (unstable)|
|vCard Format Specification
The definition of 'vCard Format Specification' in that specification.
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari|
|basic support||No support||No support||No support||No support||No support|
|Feature||Android||Chrome for Android||Firefox OS (Gecko)||IE Mobile||Opera Mobile||Safari Mobile|
|basic support||No support||No support||1.0.1||No support||No support||No support|
 As the specification is unstable, the Gecko implementation is completely non-standard.