Here's a hint Rated 3 out of 5 stars

Update to previous review, I noticed that if I disable adblock plus yahoo mail will first open with an ad at the top of the page. However after I open an email title the new page enlarges w/o the blank space. There's a disconnect between AdBlock and this add-on but there's a workaround.

No longer works well Rated 2 out of 5 stars

while the app removes ads it, sadly, no longer enlarges the mail page and leaves the large empty block at the top.. Feb17

Needs Update (Revised) Rated 5 out of 5 stars

The stickiness problem has been resolved for now so I'm deleting my original comment and raising my Rating for the fast response. This is a great app and works removing both top and side blank spaces and filling out the mailbox.. Seems also to have survived disk and cookie cleaning which I thought may have caused my problem. Highly recommend the app.

This review is for a previous version of the add-on (2.48). 

Can you try now?

Hi gregbanks,
Thanks for your review. A new version is put out there, can you see if it solves your problems? It does stick (at least for a given version) for most, so if you still see the problem, please contact the support address given.
Thanks,
Piyush Soni