i18n.getAcceptLanguages()

Gets the accept-languages of the browser. This is different from the locale used by the browser. To get the locale, use i18n.getUILanguage.

This is an asynchronous function that returns a Promise.

var gettingAcceptLanguages = browser.i18n.getAcceptLanguages()

None.

A Promise that will be fulfilled with an array of i18n.LanguageCode objects.

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

function onGot(languages) {
  console.log(languages);
  //e.g. Array [ "en-US", "en" ]
}

var gettingAcceptLanguages = browser.i18n.getAcceptLanguages();
gettingAcceptLanguages.then(onGot);