A simple fix to permanently get rid of that nagging banner ad.
Open Foxit, deactivate the banner ad in the "view" drop down menu, close Foxit. Repeat the process until the ad no longer appears.
When I tried this it took six times for it to work, but work it did. I installed it properly (not under Returnil), and rebooted afterwards just to be sure, but the ad hasn't reappeared.
This is using the latest version, Foxit 2.3.
