Ok, so here’s what I did, in this order:

I enabled the Firefox addon “Avast Online Security” that was automatically added to Firefox browser.

I added all the MBAM exclusions to Avast (I just copied/pasted the list that user “Firefox” posted at end of page). And added the 2 Avast folders to exclusions of MBAM application.

Noticed your reply to “reboot anyway”. Shutdown and turned on PC again.

Every exclusions are in place.

It seems things are running smoothly!

Thank you, Asyn!

Avast for life!