Well, I got an automatic update yesterday and the" pop-up pay bills" won't open in bank mode. Like you said it opens back under on the desktop. Doesn't do me much good there. It's been almost 30 days since your post and you haven't fixed it yet? I hate this new version........Program Version 17.2.2288 (build 17.2.3419.64)
Ps..........maybe I should mention that when this happens, I am already logged in to my bank's website. It seems to function fine going from one bank page to another but when I click on the link within the website that says "pay bills" which would take me to another website within my bank is when it opens it up "UNDER" the SafeZone or Bank Mode. It opens it back up on the desktop. This did NOT happen with my previous version of AVAST when using Bank Mode.