It did not see either of those in the "Analyze" results list. So I checked this just now. I went ahead with cleaning all of the listed areas, and this time my Adblocker was preserved, though!
I cannot pinpoint what change occured to fix this.
It may have been possible that "extensions.ini" and "extensions.json" were being analyzed and removed, but I cannot check now. If I have the problem again, I will check to see if these result in the listing after choosing to "Analyze" my Firefox application.
Thanks