X-Notifier 4.2.5 failing to work on Chrome Browser And Firefox Browser for Yahoo emails

My Yahoo emails in Chrome Browser are all in red color but i can log in but it's failing to notify me of new Yahoo emails.

Just FYI.
I have Yahoo working with XN ...4.2.5<<< for both the new Yahoo mail interface and the 'Classic' Yahoo mail... in Chrome and latest Firefox.
However... with XN 3.5.23 on FF 56.0.2 ...it will not check, most likely due to the Oath cookie demand, which I will not participate in.