Scrapebox Harvester: How to permanently delete custom footprints?

There is this one thing I just can't figure out with the Scrapebox Harvester:

How do you permanently delete all those custom footprints you have over time entered in the harvester between the M and the C button? The C clear button doesn't remove them permanently, they stay in the dropdown menu, and every new entry is auto-completed with the old 'crap' I once entered. I would love to remove them for good, but how?

I already deleted the footprint.ini and harvester sessions, but those old custom footprint entries just won't go away...

Thanks for enlightening me!

For me works this open scrapebox folder - configuration - footprint file and under this file delete what are you want and that's it.

Thanks, I made a stupid mistake and you pointed me in the right direction. That works perfectly!