Listener “notifications.onClicked” unimplemented - firefox 47

Hello,
I’m developing extension using webextensions api. I’m trying
to add onClicked listener to notification, but the browser console says
that it’s not implemented. MDN says that it should work: https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/notifications/onClicked
Do you know any workaround?

chrome.notifications.onClicked.addListener(function(idd) {console.log(“clicked”);});

I want to use Notifications api, but I cannot make it work in background script. It doesn’t ask for permission.
https://developer.mozilla.org/en-US/docs/Web/API/Notifications_API/Using_the_Notifications_API

Notification.requestPermission(function (status) {
if (Notification.permission !== status) {
Notification.permission = status;
}
});

So I assume you are on a Firefox version bigger than 46, so current Developer Edition or Nightly?

I’m using current Developer Edition.
Is it possible to make standard notifications work in background script?

If this isn’t working for you, I suggest you create a minimal testcase add-on and file a bug report.