Gets the browser action's badge text.

Note: This API is available in Manifest V3 or higher.

This is an asynchronous function that returns a Promise.


let gettingText = browser.action.getBadgeText(
  details               // object



An object with the following properties:

tabId Optional

integer. Specifies the tab from which to get the badge text.

windowId Optional

integer. Specifies the window from which to get the badge text.

  • If windowId and tabId are both supplied, the function fails.
  • If windowId and tabId are both omitted, the global badge text is returned.

Return value

A Promise that will be fulfilled with a string containing the badge text.


Log the badge text:

function gotBadgeText(text) {

let gettingBadgeText = browser.action.getBadgeText({});

Browser compatibility

BCD tables only load in the browser

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