Update Regarding Add-Ons in Firefox
Well, I'm about to make a lot of people happy with this info. I was researching this today as I'm using FF 56.0.2 and found the solution on this discussion thread. Leave it to an end user to do the job the professionals either failed or refused to due. It worked for me on 3 different machines. Go to this link and follow the instructions detailed:http://bit.ly/2DUiOLN