Kudos to the ABP crew; this app works great for (almost) every one of my browsing destinations... the lone exception is mail.yahoo.com (the desktop version of the site, not the mobile version).
Ads display in the far-right pane regardless of whether I use Firefox or my tablet's native browser; regardless whether I use Fanboy or EasyList.
Most (all?) of these ads seem to be from yieldmanager.com.
Any suggestions on how to remove these ads?