Returns "locked" if the system is locked, "idle" if the user has not generated any input for a specified number of seconds, or "active" otherwise.


  detectionIntervalInSeconds, // integer
  function(newState) {...}    // function

This API is also available as browser.idle.queryState() in a version that returns a promise.


integer. The system is considered idle if detectionIntervalInSeconds seconds have elapsed since the last user input detected.
function. The function is passed the following arguments:
idle.IdleState. The idle state.

Browser compatibility

Chrome Edge Firefox Firefox for Android Opera
Basic support Yes No 45.0 48.0 33


In this simple snippet, we call queryState() and then check if the returned newState is idle or active, logging a message as appropriate. Because we have specified  a detectionIntervalInSeconds of 15, an idle state will only be reported if there has been no user activity for at least 15 seconds

chrome.idle.queryState(15,function(newState) {
  if(newState === 'idle') {
    console.log('Please come back — we miss you!');
  } else if(newState === 'active') {
    console.log('Glad to still have you with us!');

Note: This function currently returns "active" in Firefox, regardless of the system idle state.


This API is based on Chromium's chrome.idle API. This documentation is derived from idle.json in the Chromium code.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.

Document Tags and Contributors

 Contributors to this page: Makyen, chrisdavidmills, wbamberg, kmaglione
 Last updated by: Makyen,