W3cubDocs

/Web Extensions

StorageArea.clear()

Removes all items from the storage area.

This is an asynchronous function that returns a Promise.

Syntax

var clearing = browser.storage.<storageType>.clear()

<storageType> will be one of the writable storage types — storage.sync or storage.local.

Parameters

None.

Return value

A Promise that will be fulfilled with no arguments if the operation succeeded. If the operation failed, the promise will be rejected with an error message.

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
clear
Yes
14
45
?
33
14
?
?
48
?
?
?

Examples

function onCleared() {
  console.log("OK");
}

function onError(e) {
  console.log(e);
}

var clearStorage = browser.storage.local.clear();
clearStorage.then(onCleared, onError);

Note: This API is based on Chromium's chrome.storage API. This documentation is derived from storage.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.

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/storage/StorageArea/clear