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.

This API is available on Firefox OS for internal applications only.


The deliveryStatus property represents the current state of the message delivery from the recipient's perspective.


var delivery = instanceOfMozMmsMessage.deliveryStatus;


An Array of strings (one for each recipient) which can be one of the following:

  • pending        : The message is awaiting delivery.
  • success        : The message has been sent by the device.
  • error          : The message could not be delivered.
  • not-applicable : The message has been sent without status report requisition.

The values of that property are conditioned by the value of the property:

delivery deliveryStatus
sending pending
sent pending
The following is pointless as deliveryStatus has no real meaning when receiving a message
not-download success
received success
error error


This is a non-standard implementation, but it is discussed at W3C as part of the System Application Working Group.

Specification Status Comment
Messaging API Editor's Draft Editor Draft (WIP).

Browser compatibility

For obvious reasons, support is primarily expected on mobile browsers.

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support Not supported Not supported Not supported Not supported Not supported
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support Not supported 12.0 (12.0) Moz Not supported Not supported Not supported

See also

Document Tags and Contributors

Contributors to this page: fscholz, kollishivagangadhar, pailvarun, kscarfone, Jeremie
Last updated by: fscholz,