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


The attachments property gives access to the list of all the MMS attachments (resources necessary to display the MMS correctly).


var attachments = instanceOfMozMmsMessage.attachments;


An Array of MmsAttachment objects.


Those objects are regular JavaScript objects with the following properties:

The unique id of the attachment.
A string representing the name/location of the attachment within the SMIL content of the MMS.
A Blob representing the content of the attachment.


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 No support No support No support No support No support
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support 12.0 (12.0) Moz No support No support No support

See also

Document Tags and Contributors

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