Find out when the user's system is idle, locked, or active.
To use this API you need to have the "idle" permission.
Types
- idle.IdleState
- 
 String describing the device's idle state. 
Functions
- idle.queryState()
- 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.
- idle.setDetectionInterval()
- Sets the interval used to determine when the system is in an idle state for idle.onStateChangedevents.
Events
- idle.onStateChanged
- Fired when the system changes state.
Browser compatibility
| Edge | Firefox | Chrome | Opera | |
|---|---|---|---|---|
| IdleState | ? | 45.0 | Yes | 33 | 
| onStateChanged | ? | No | Yes | 33 | 
| queryState | ? | 45.0 | Yes | 33 | 
| setDetectionInterval | ? | No | Yes | 33 | 
| Firefox | |
|---|---|
| IdleState | No | 
| onStateChanged | No | 
| queryState | 48.0 | 
| setDetectionInterval | No | 
The "Chrome incompatibilities" section is included from https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Chrome_incompatibilities using the WebExtChromeCompat macro.
If you need to update this content, edit https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Chrome_incompatibilities, then shift-refresh this page to see your changes.
Chrome incompatibilities
- Firefox does not support:
  - onStateChanged
- setDetectionInterval()
 
Acknowledgements
This API is based on Chromium's chrome.idle API. This documentation is derived from idle.json in the Chromium code.
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