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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.


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


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


Disable zooming for the current tab:

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

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

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

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxOperaFirefox for Android
setZoomSettingsChrome Full support YesEdge No support NoFirefox No support NoOpera Full support YesFirefox Android No support No


Full support  
Full support
No support  
No support


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.

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