Yahoo Mail Informer
Yahoo Mail Informer 1.3 for Windows
Hasitha Browser & Email / Browser Tweak
A Chrome extension that will notify you when you receive a new mail on Yahoo Mail

Software Summary:

You can run Yahoo Mail Informer on Windows operating systems. Yahoo Mail Informer is a software product developed by Hasitha and it is listed in the Browser & Email category under Browser Tweak. Yahoo Mail Informer is a free software product and it is fully functional for an unlimited time although there may be other versions of this software product.

Alternatives in Browser & Email on Windows