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    This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

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


    WebSMS is an API that makes it possible for web content to create, send, and receive Short Message Service (SMS) or Multimedia Messaging Service (MMS) messages.

    The API is available using window.navigator.mozSms which returns a MozSmsManager object or window.navigator.mozMobileMessage which returns a MozMobileMessageManager. See below for a full list of interfaces:

    DOM interfaces

    SMS interfaces

    MMS and SMS interfaces

    Sample code and introduction


    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) Firefox OS IE Mobile Opera Mobile Safari Mobile
    Basic support Not supported 12.0 (12.0) 1.0.1
    1.1 for MMS
    Not supported Not supported Not supported

    Preferences & availability

    • WebSMS is disabled by default and can be enabled setting the preference dom.sms.enabled to true.
    • A comma-separated whitelist of allowed hostnames that are allowed to use the WebSMS API must be specified using the dom.sms.whitelist preference. This string is empty by default.
    • WebSMS is only available to certified apps on Firefox OS (B2G).
    • MMS are available starting with Firefox OS 1.1

    See also

    Document Tags and Contributors

    Last updated by: kscarfone,