You're crippling Yahoo Mail because I use an Ad Blocker. I'm GONE!
I've put up with the annoying unblockable "ad" that looks like a subject heading at the top of the email list but which is actually a stupid ad. Now you're harassing me about using an Ad Blocker -- again. This happened a while back, and it was worse then -- we couldn't even get into our emails. Now, it's just a major annoyance. And it's the last straw. I've gone over to free Outlook.com. And with a little investigation I found the one thing that Yahoo had over other web emails -- tabs. If you right click an email subject line in Outlook, go ALL the way to the bottom of the list that appears, there's an option to "Open in new tab". Hallelujah! I've got my Yahoo replacement. It does require 2 extra steps, but it's worth it. Clean UI, no Yahoo BS.
Plus, it shows numbers when emails are placed in the spam folder, something the geniuses at Yahoo have never figured out how to do. Imagine that -- an email service that can't even highlight a spam folder. Unbelievable. See ya, suckers! You had a good thing and now you suck.