Ask for the set of permissions listed in the given permissions.Permissions object.

The Permissions argument may contain either an origins property, which is an array of host permissions, or a permissions property, which is an array of API permissions, or both. Permissions must come from the set of permissions defined in the optional_permissions manifest.json key. The origins property may include permissions that match a subset of the hosts matched by an optional permission: for example, if optional_permissions include "*://", then may include "".

The request can only be made inside the handler for a user action, such as

  • clicking the extension's browser action or page action
  • selecting its context menu item
  • activating a keyboard shortcut defined by the extension
  • clicking a button in a page bundled with the extension.

Depending on a circumstances, the browser will probably handle the request by asking the user whether to grant the requested permissions. Only a single request is made for all requested permissions: thus either all permissions are granted or none of them are.

Any permissions granted are retained by the extension, even over upgrade and disable/enable cycling.

This is an asynchronous function that returns a Promise.


var requesting = browser.permissions.request(
  permissions                // Permissions object


A permissions.Permissions object.

Return value

A Promise that will be fulfilled with true if the extension was granted all the permissions listed in the permissions argument, or false otherwise.

Browser compatibility

ChromeEdgeFirefoxFirefox for AndroidOpera
Basic support Yes No

551 2

56 — 613

551 2

56 — 613


1. The user will be prompted again for permissions that have been previously granted and then removed.

2. It's not possible to request permissions from a popup or a sidebar document.

3. It's not possible to request permissions from an options page that's embedded in about:addons. To request permissions from an options page, set the open_in_tab property in the options_ui manifest key, so the options page opens in its own tab.


This code adds a click handler that asks for various permissions, then logs the result of the request and the extension's permissions after the request completed.

const permissionsToRequest = {
  permissions: ["bookmarks", "history"],
  origins: [""]

function requestPermissions() {

  function onResponse(response) {
    if (response) {
      console.log("Permission was granted");
    } else {
      console.log("Permission was refused");
    return browser.permissions.getAll();  

    .then((currentPermissions) => {
    console.log(`Current permissions:`, currentPermissions);

document.querySelector("#request").addEventListener("click", requestPermissions);

Example extensions


Currently has a bug with requesting origins and requesting permissions on the about:addons page.

This API is based on Chromium's chrome.permissions 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: blaisekal, keineausweise, andrewtruongmoz, wbamberg
Last updated by: blaisekal,