MDN’s new design is in Beta! A sneak peek:


Clears the browser's cache.

Note that although this function can take a browsingData.RemovalOptions object, it will be ignored. The entire cache is always cleared when using this function.

This is an asynchronous function that returns a Promise.


var removing = browser.browsingData.removeCache(
  removalOptions            // RemovalOptions object


removalOptions Optional
object. A browsingData.RemovalOptions object. This parameter has no effect.

Return value

A Promise that will be fulfilled with no arguments when the removal has finished. If any error occurs, the promise will be rejected with an error message.

Browser compatibility

ChromeEdgeFirefoxFirefox for AndroidOpera
Basic supportYesNo53 1NoYes
1. 'removalOptions' does not support 'protectedWeb' or 'extension' as values of 'originTypes'.


Clear the browser cache:

function onRemoved() {

function onError(error) {

then(onRemoved, onError);


This API is based on Chromium's chrome.browsingData API.

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: wbamberg
 Last updated by: wbamberg,