A BrowserSetting object whose underlying value is a boolean.

By default zoom applies to all the content of a web page. Using the Zoom Text Only setting users can choose to zoom only the text on a page. This settings enables web extensions to control this setting and determine whether zoom is applied to the entire page or to text only.

The settings are:

  • true: zoom applies to all the content of a web page (default).
  • false: zoom applies to web page text only.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxOperaSafariFirefox for Android
zoomFullPageChrome No support NoEdge No support NoFirefox Full support 75Opera No support NoSafari No support NoFirefox Android No support No


Full support  
Full support
No support  
No support


Set the setting to false:

function logResult(result) {
  console.log(`Setting was modified: ${result}`);

browser.browserSettings.zoomFullPage.set({value: false}).