You can either temporarily hide the ads that keep popping up on your Yahoo Mail page or block them permanently. To know how, refer to the steps below.
To temporarily hide ads (for free email accounts):
1)Sign in to your Yahoo Mail account
2)When, while viewing your list of emails or a particular email, an ad pops up, you can see a right-facing arrow between your email and the advertisement. Click on this arrow.
3)The ad will get hidden temporarily.
This blocks the ads temporarily only and as soon as you perform the actions like refreshing the Yahoo Mail page, marking a particular email as spam, replying to an email, or just clicking on any of the sections in the navigation-menu located on the left of the page, a new ad may pop up again).
To permanently remove graphical and text ads:
Yahoo Mail has recently come up with "Yahoo Ad Free Mail" service to enable you to get rid of graphical and text ads on a permanent basis when viewing your Yahoo Mail account from a computer. You need to sign up for Yahoo Ad Free Mail account before starting using this service.
Before signing up for Yahoo Ad Free Mail account, please check if the service is available in your region. Also, even after subscribing to the service, the subscribers may still get the text ads that come up on Yahoo Mail on a mobile web browser and the text ads that come up in the "Basic Mail" interface of Yahoo Mail on a computer. To know what Basic Mail is, refer to the following Yahoo webpage: https://help.yahoo.com/kb/mail-for-desktop/basic-mail-sln5171.html)
To know more about Yahoo Ad Free Mail service, refer to the following Yahoo webpage:
To know more about blocking ads on Yahoo Mail, refer to the following Yahoo webpage: