Please read the paragraph below before following the instructions in the video - there are important caveats in the paragraph that I did not mention in the video. The solution proposed there is very likely to solve your problem, but if it doesn't, come back here to try the idea in this video. The problem discussed in that article reached epidemic proportions in July 2018.
What to do when PaperPort crashes, hangs, or fails to start - popular fix for Mozilla Firefox users
If you are (or ever were) a Mozilla Firefox user, I suggest that you immediately head over to this Experts Exchange article:
