Review for Empty 'em by kh63
Rated 5 out of 5 stars
I was having problems with this add-on working. I decided to delete it and reinstall it. It worked for me. You might try to reinstall it and see if it works for you. No harm in trying.
This review is for a previous version of the add-on (0.90).To create your own collections, you must have a Mozilla Add-ons account.