Rated 5 out of 5 stars
Thanks for sharing this add-on. I hope it's rewritten for Firefox 57.
It does exactly what it says very fast and in several flexible formats. I've used these exported lists for troubleshooting, setting up a new computer, and now for seeing what extensions will die in Firefox 57. I hope yours isn't one, but I understand if it is. Rewriting code is a lot of work.