Add-ons

permissions.request()

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 "*://mozilla.org/", then permissions.origins may include "https://developer.mozilla.org/".

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.

Syntax

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

Parameters

permissions
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 supportYesNo55 155 1Yes
1. The user will be prompted again for permissions that have been previously granted and then removed.

Examples

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: ["https://developer.mozilla.org/"]
}

function requestPermissions() {

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

  browser.permissions.request(permissionsToRequest)
    .then(onResponse)
    .then((currentPermissions) => {
    console.log(`Current permissions:`, currentPermissions);
  });
}

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

Example extensions

Acknowledgements

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: andrewtruongmoz, wbamberg
 Last updated by: andrewtruongmoz,