Apr-11-25, ff v137.0.1, win10.
Today, yahoo attacked my mail with "violating terms of service" for using ublockorigin. Tried this add-on and it seems to work as advertised!

It was good until a few days ago, now get banner ads on top in certain emails .. Please see if you can fix this .. Yahoo wants us to use Yahoo Mail Plus for $5 per month ... Thanks

This add-on works great for removing ad panels on the side, however, at the top of the preview window it still shows the "Deal Summaries" & website logo & link...if this gets fixed I will update my review to 5 stars & recommend more...thanks

Was working great but now the yahoo email ad panel is back with ads. Maybe needs a new update.

Up until FF upgraded 93.0 (64-bit) with both Win-10 & 7 (on PC), this has been a 5-star rating. It actually still is. Grateful and thankful for the author's work on this.
Currently I would consider this a broken app, because yahoo has found a way to push their right side ads again. The screen is being occupied by their garbage again.
They have also been able to temporarily push their small ad area above the subject lines (shows up for a few seconds, then goes away).
This has been an exemplary program. I am hoping that the author can find a way to smack down yahoo again.

Yahoo Mail Hide Ad Panel used to block all the ads; nowadays Yahoo has managed to get the top "sponsored" ad to poke through. It does successfully block the left- and right-side ads that waste so much screen real estate. Thank you so much, Piyush! Hopefully you can find a way to block the extremely annoying top sponsored ad, too.

Works fine left and right, but the one in the centre top remains and does not go away, despite uninstalling and reinstalling the extension. No idea why this is the case...

Nevertheless, big thanks to the author!

works on left and right side but since yahoo has been cracking down and forcing you to refresh the page to see your email every time you click on something, the center ad at the top of the inbox is still showing with this add-on

lebih mantap

Does what it says it will do. It would be nice if it could also stop the "popular videos" screen from automatically coming up since the latest Yahoo change. An earlier Yahoo e-mail ad blocker did that, but it doesn't work anymore since the latest Yahoo change.

It used to block the ad on top but it shows now but still blocks the ads to the right. It doesn't leave an open space to the side. Your mail fills in that spot. I use Windows 7 64 bit and Firefox 57.

I opened my laptop today and now the banner at the top is back even though it's blank. Please fix. Thanks.

Now it's working. Let me know why it was glitchy.

Does not block the Large White Area above the Yahoo email page at: mg.mail.yahoo.com .. sometimes it does, sometimes not. And just to clarify, this is a very large Banner Ad from "TurboTax" .. they did this last year around this time and it is back again this year. Sometimes, clearing all the Cookies will get rid of it. Sometimes not. And all my filters for AdBlock Plus are up to date. Firefox 47.0.2 .. Thank you

gregbanks2 is right … the applet used to be reliable … now, ymhap has stopped working. currently using firefox(64bit) 51.0.1 version … since the applet stopped working, now ⅓ of the screen has been taken away. can you pls fix? both firefox and ymhap were freshly installed today.

thanks for your courtesy, piyush.

until late Jan17 Firefox update.