The remove() method of the cookies API deletes a cookie, given its name and URL.

The call succeeds only if you include the "cookies" API permission in your manifest.json file, as well as host permissions for the given URL specified in its manifest.

This is an asynchronous function that returns a Promise.


var removing = browser.cookies.remove(
  details               // object


An object containing information to identify the cookie to remove. It contains the following properties:
A string representing the first-party domain with which the cookie to remove is associated. This property must be supplied if the browser has first-party isolation enabled. See First-party isolation.
A string representing the name of the cookie to remove.
A string representing the ID of the cookie store to find the cookie in. If unspecified, the cookie is looked for by default in the current execution context's cookie store.
A string representing the URL associated with the cookie. If the extension does not have host permissions for this URL, the API call will fail.

Return value

A Promise that will be fulfilled with a cookies.Cookie object containing details about the cookie that's been removed. If a cookie matching the details parameter could not be found, the promise is fulfilled with null.  If the call fails for any reason, the promise will be rejected with an error message.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxOperaSafariFirefox for Android
removeChrome Full support YesEdge Full support 14Firefox Full support 45
Full support 45
Notes Before version 56, this function did not remove cookies from private browsing mode. From version 56 onwards this is fixed.
Opera Full support YesSafari Full support 14Firefox Android Full support 48
Full support 48
Notes Before version 56, this function did not remove cookies from private browsing mode. From version 56 onwards this is fixed.
firstPartyDomainChrome No support NoEdge No support NoFirefox Full support 59Opera No support NoSafari No support NoFirefox Android Full support 59


Full support  
Full support
No support  
No support
See implementation notes.
See implementation notes.


This example tries to remove the cookie named "favourite-colour", whose URL matches the URL of the document hosted by the currently active tab:

function onRemoved(cookie) {
  console.log(`Removed: ${cookie}`);

function onError(error) {
  console.log(`Error removing cookie: ${error}`);

function removeCookie(tabs) {
  var removing = browser.cookies.remove({
    url: tabs[0].url,
    name: "favourite-colour"
  removing.then(onRemoved, onError);

var getActive = browser.tabs.query({active: true, currentWindow: true});

Example extensions


This API is based on Chromium's chrome.cookies API. This documentation is derived from cookies.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.