index.md

---

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

---

{{AddonSidebar()}}

Sets zoom settings for the specified tab. These settings are reset to the default settings upon navigating the tab.

This is an asynchronous function that returns a Promise.

Syntax

let settingZoomSettings = browser.tabs.setZoomSettings(
  tabId,           // optional integer
  zoomSettings     // ZoomSettings
)

Parameters

• tabId {{optional_inline}}

  • : integer. The ID of the tab to change the zoom settings for. Defaults to the active tab of the current window.

• zoomSettings

  • : {{WebExtAPIRef('tabs.ZoomSettings')}}. Defines how zoom changes are handled and at what scope.

Return value

A Promise that will be fulfilled with no arguments after the zoom settings have been changed. If the tab could not be found or some other error occurs, the promise will be rejected with an error message.getZoom

Examples

Disable zooming for the current tab:

function onSet() {
  console.log(`Set zoom factor`);
}

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

let setting = browser.tabs.setZoomSettings({mode:"disabled"});
setting.then(onSet, onError);

{{WebExtExamples}}

Browser compatibility

{{Compat}}

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