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


The clear method is used to remove ALL the contacts from the device's contact database.


var instanceOfDomRequest = window.navigator.mozContacts.clear();

Return value

A DOMRequest object to handle the success or error of the operation.


var request = window.navigator.mozContacts.clear();

request.onsuccess = function () {
  console.log('All contacts have been removed.');

request.onerror = function () {
  console.log('No contacts were removed.');


Specification Status Comment
Contacts Manager API
The definition of 'Contacts Manager API' in that specification.
Working Draft First Working Draft (unstable)
vCard Format Specification IETF RFC RFC 6350

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 Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
basic support No support No support 18.0 No support No support No support

See also

Document Tags and Contributors

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