Gets the current zoom settings for a specified tab.

This is an asynchronous function that returns a Promise.


let gettingZoomSettings = browser.tabs.getZoomSettings(
  tabId                       // optional integer


tabId Optional

integer. The ID of the tab to get the current zoom settings from. Defaults to the active tab of the current window.

Return value

A Promise that will be fulfilled with a tabs.ZoomSettings object representing the tab's current zoom settings. If the tab could not be found or some other error occurs, the promise will be rejected with an error message.


Get the zoom settings for the current tab:

function onGot(settings) {

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

let gettingZoomSettings = browser.tabs.getZoomSettings();
gettingZoomSettings.then(onGot, onError);

Browser compatibility

BCD tables only load in the browser

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