Creates a new tab.

This is an asynchronous function that returns a Promise.


var creating = browser.tabs.create(
  createProperties   // object


object. Properties to give the new tab. To learn more about these properties, see the tabs.Tab documentation.
boolean. Whether the tab should become the active tab in the window. Does not affect whether the window is focused (see windows.update). Defaults to true.
cookieStoreId Optional
string. Use this to create a tab whose cookie store ID is cookieStoreId. This option is only available if the add-on has the "cookies" permission.
integer. The position the tab should take in the window. The provided value will be clamped to between zero and the number of tabs in the window.
integer. The ID of the tab that opened this tab. If specified, the opener tab must be in the same window as the newly created tab.
boolean. Whether the tab should be pinned. Defaults to false.
boolean. Whether the tab should become the selected tab in the window. Defaults to true.
This property is deprecated, and is not supported in Firefox. Use active instead.
string. The URL to navigate the tab to initially. Defaults to the New Tab Page.
Fully-qualified URLs must include a scheme (i.e. '', not '').
For security reasons, in Firefox, this may not be a privileged URL. So passing any of the following URLs will fail:
  • chrome: URLs
  • javascript: URLs
  • data: URLs
  • privileged about: URLs (for example, about:config, about:addons, about:debugging) . Non-privileged URLs (e.g., about:blank) are allowed.

To load a page that's packaged with your add-on, specify an absolute URL starting at the add-on's manifest.json file. For example: '/path/to/my-page.html'. If you omit the leading '/', the URL is treated as a relative URL, and different browsers may construct different absolute URLs.

integer. The window to create the new tab in. Defaults to the current window.

Return value

A Promise that will be fulfilled with a tabs.Tab object containing details about the created tab. If the tab could not be created (for example, because url used a privileged scheme) the promise will be rejected with an error message.

Browser compatibility

Chrome Edge Firefox Firefox for Android Opera
Basic support Yes Yes 45.0 No 33

Compatibility notes


  • 'cookieStoreId' is not supported.


  • 'selected', 'pinned', or 'openerTabId' are not supported.
  • 'cookieStoreId' is not supported.


  • 'selected' is deprecated and not supported. Use 'active' instead.
  • 'openerTabId' is not supported.
  • 'cookieStoreId' is supported from version 52.


  • 'cookieStoreId' is not supported.


Open "" in a new tab:

function onCreated(tab) {
  console.log(`Created new tab: ${}`)

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

browser.browserAction.onClicked.addListener(function() {
  var creating = browser.tabs.create({
  creating.then(onCreated, onError);

Example add-ons


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

Document Tags and Contributors

 Contributors to this page: wbamberg, Makyen, Jeremie, kmaglione
 Last updated by: wbamberg,