Mail "hangs" when I try to switch folders
I have unfortunately gotten used to the worsened performance over the past couple of years, but lately Yahoo! Mail has become almost unusable. Whenever I try to switch email folders, the system just hangs. I usually wait ~60 seconds before I have to refresh the entire page...and even that only solves the problem ~50% of the time. Pretty much everyone I know uses gmail for their email, and they almost never experience this kind of performance. I've been a Yahoo! Mail user for almost 20 years, but I'm about ready to jump ship.

If you still find that the issue is happening, please see this help page for troubleshooting:
https://help.yahoo.com/kb/new-mail/fix-problems-mail-sln28075.html?impressions=true
Thank you!
Mail Support