This API is available on Firefox OS for privileged or certified applications only.

The MozContactChangeEvent interface provides information about the contact that has changed. It inherits from the Event interface.


A string representing the id of the contact that has changed within the device's contact database.
A string giving the reason of the change. Possible value is one of update, create, or remove.


Specification Status Comment
Contacts Manager API
The definition of 'ContactsChangeEvent' in that specification.
Working Draft First Working Draft (unstable)

Browser compatibility

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[1] No support No support No support

[1] As the specification is unstable, the Gecko implementation is completely non-standard.

See also

Document Tags and Contributors

 Contributors to this page: chrisdavidmills, Sebastianz, teoli, kscarfone, Jeremie
 Last updated by: chrisdavidmills,