Let's use this form as other modules
```js
if (navigator.mozL10n.readyState == 'complete' ||
    navigator.mozL10n.readyState == 'interactive') {
  XXX.init();
} else {
  window.addEventListener('localized', function init() {
    window.removeEventListener('localized', init);
    XXXX.init();
  });
}
```