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


The type property represents the type of the message. It provides a convenient way to be sure that a message is an MMS.


var type = instanceOfMozMmsMessage.type;


A string which always has a value of mms.


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.

Supported in Firefox OS 1.0.1.

See also

Document Tags and Contributors

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