system
10
OK, not sure how, but something has happened recently that caused avast to start scanning the incoming imap mail. I didnt do anything specific to cause it, but it may have been due to a pc reboot (even though i tried that originally) or possibly due to a mozilla app lockup that i had to force close.
However, it seems to be working well at the moment, so i’m not going to mess with it 
If you feel there may be a compatability issue with avast and mozilla, i would be willing to assist with any tests you may want to run.
thanks for your assistance.