Url changed in custom tabs

I'm using ChromeSafariBrowser, I want to know when redirect Url changes in my browser, in chrome, getting the changes with Uni_Links like this :

getLinksStream().listen((String url) {
    print("url changed: $url");

  }, onError: (error) {
    print("error $error");

  });

but it's not fired with other custom tabs, like Firefox.

is there any way to find out when URL changes in custom tabs?