1. Mozilla
  2. Add-ons
  3. Browser extensions
  4. JavaScript APIs
  5. alarms
  6. alarms.clearAll()

alarms.clearAll()

Cancels all active alarms.

This is an asynchronous function that returns a Promise.

Syntax

js
let clearAlarms = browser.alarms.clearAll()

Parameters

None.

Return value

A Promise that will be fulfilled with a boolean. This will be true if any alarms were cleared, false otherwise. Note that Chrome always passes true here.

Examples

js
function onClearedAll(wasCleared) {
  console.log(wasCleared); // true/false
}

let clearAlarms = browser.alarms.clearAll();
clearAlarms.then(onClearedAll);

Example extensions

Browser compatibility

Chrome
Edge
Firefox
Opera
Safari
Firefox for Android
Safari on iOS
clearAll
Chrome – Full support
Chrome 22 (Release date: 2012-09-25)
footnote Full support
Edge – Full support
Edge 79 (Release date: 2020-01-15)
footnote Full support
Firefox – Full support
Firefox 45 (Release date: 2016-03-08)
footnote Full support
Opera – Full support
Opera 15 (Release date: 2013-07-02)
footnote Full support
Safari – Full support
Safari 14 (Release date: 2020-09-16)
footnote Full support
Firefox for Android – Full support
Firefox for Android 48 (Release date: 2016-08-02)
footnote Full support
Safari on iOS – Full support
Safari on iOS 15 (Release date: 2021-09-20)
footnote Full support

Tip: you can click/tap on a cell for more information.

Full support

Note: This API is based on Chromium's chrome.alarms API.

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