Gets the sidebar's title.

Just as you can set the title on a per-tab basis using sidebarAction.setTitle(), so you can retrieve a tab-specific title by passing the tab's ID into this function.

This is an asynchronous function that returns a Promise.


let gettingTitle = browser.sidebarAction.getTitle(
  details               // object



object. An object with the following properties:


integer. Get the title for the sidebar specific to the given tab.

windowId Optional

integer. Get the title for the sidebar specific to the given window.

  • If windowId and tabId are both supplied, the function fails and the promise it returns is rejected.
  • If windowId and tabId are both omitted, the global title is returned.

Return value

A Promise that will be fulfilled with a string containing the sidebar's title.

Browser compatibility

BCD tables only load in the browser


This code switches the title between "this" and "that" each time the user clicks the browser action

function toggleTitle(title) {
  if (title == "this") {
    browser.sidebarAction.setTitle({title: "that"});
  } else {
    browser.sidebarAction.setTitle({title: "this"});

browser.browserAction.onClicked.addListener(() => {
  let gettingTitle = browser.sidebarAction.getTitle({});

Note: This API is based on Opera's chrome.sidebarAction API.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.