index.md

---

title: windows.get()
slug: Mozilla/Add-ons/WebExtensions/API/windows/get
page-type: webextension-api-function
tags:
  - API
  - Add-ons
  - Extensions
  - Method
  - Non-standard
  - Reference
  - WebExtensions
  - Windows
  - get
browser-compat: webextensions.api.windows.get

---

{{AddonSidebar()}}

Gets details about a window, given its ID. The details are passed into a callback.

This is an asynchronous function that returns a Promise.

Syntax

let getting = browser.windows.get(
  windowId,              // integer
  getInfo                // optional object
)

Parameters

• windowId

  • : integer. The ID of the window object you want returned.

• getInfo {{optional_inline}}

  • : object. Contains options to filter the type of window.

    • populate {{optional_inline}}

      • : boolean. If true, the {{WebExtAPIRef('windows.Window')}} object will have a tabs property that contains a list of {{WebExtAPIRef('tabs.Tab')}} objects representing the tabs open in the window. The Tab objects only contain the url, title and favIconUrl properties if the extension's manifest file includes the "tabs" permission or a matching host permission.

    • windowTypes {{optional_inline}}

      • : array of {{WebExtAPIRef('windows.WindowType')}} objects. If set, the {{WebExtAPIRef('windows.Window')}} returned will be filtered based on its type. If unset the default filter is set to ['normal', 'panel', 'popup'], with 'panel' window types limited to the extension's own windows.

Note: If supplied, the windowTypes component of getInfo is ignored. The use of windowTypes has been deprecated as of Firefox 62.

Return value

A Promise that will be fulfilled with a {{WebExtAPIRef('windows.Window')}} object containing the details of the window. If any error occurs, the promise will be rejected with an error message.

Browser compatibility

{{Compat}}

Examples

This example gets the current window and logs the URLs of the tabs it contains. Note that you'll need the "tabs" permission or matching host permissions to access tab URLs.

Note: This example is a bit unrealistic: in this situation you would more probably use {{WebExtAPIRef("windows.getCurrent()")}}.

function logTabs(windowInfo) {
  for (const tabInfo of windowInfo.tabs) {
    console.log(tabInfo.url);
  }
}

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

browser.browserAction.onClicked.addListener((tab) => {
  browser.windows.get(tab.windowId, { populate: true }).then(logTabs, onError);
});

{{WebExtExamples}}

Note: This API is based on Chromium's chrome.windows API. This documentation is derived from windows.json in the Chromium code.