published property provides the date of when the contact was stored for the first time on the device's contact database.
var published = instanceOfMozContact.published
Return a Date object.
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.
familyName property is a list of all the possible family names usable for the contact.
var names = instanceOfMozContact.familyName
Return an Array of strings.
This is currently not defined in any 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 Mobile (Gecko)||IE Mobile||Opera Mobile||Safari Mobile|
|basic support||No support||No support||18.0 (18.0)||No support||No support||No support|
 As the specification is unstable, the Gecko implementation is completely non-standard.
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