It’s so annoying that Yahoo placed sponsored ads header just above fresh e-mails.
I am old Yahoo mail user and I understand the importance of ads to a free mail client, however these ads are not serving any purpose at all if they are clicked unintentionally.
After few misplaced clicks on the ads, it got me so angry that I started doing extensive research how they could be turned off.
After a while, it became very clear.
Install this ad-don, apparently it works. ( Thanks Jake!)
Don’t forget to share this to all who might need a solution.