We're looking for a user researcher to understand the needs of developers and designers. Is this you or someone you know? Check out the post: https://mzl.la/2IGzdXS

MozMobileConnection.cardState Redirect 1

« DOM Reference

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 certified applications only.


The cardState is a read-only property that indicates the state of the device's ICC card.


var state = navigator.mozMobileConnection.cardState


Returns a string representing the ICC card's state. Possible values are:

  • unknown
  • absent
  • pinRequired
  • pukRequired
  • networkLocked
  • ready

This property can also be null.


Not part of any specification.

See also

Document Tags and Contributors

Last updated by: Sheppy,