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


Specifies an event listener to receive sending events. These events occur when an SMS or MMS enters the send flow.


navigator.mozMobileMessage.onsending = funcRef;

Where funcRef is a function to be called when the sending event occurs. It recieves a MozSmsEvent or MozMmsEvent object as its first parameter.


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

Last updated by: wbamberg,