Review for Empty 'em by ITslick
Rated 5 out of 5 stars
It works perfectly on TB 3.1.9
It was about time some one came up with the idea to click 1 button and empty all the trash cans + junk boxes, I was getting tired of going into each account to manually remove each of them at a time for 50+ email accounts x2...
To create your own collections, you must have a Mozilla Add-ons account.