Review for ThreadVis by irneb
Rated 4 out of 5 stars
Awesome. I've been using it for the past 6 mnths. Some minor glitches, especially when moving emails between folders, but other than that works wonderfully ... in TB2 ... not so in TB3, it breaks the Header view.
This review is for a previous version of the add-on (1.1.595).To create your own collections, you must have a Mozilla Add-ons account.