Rated 3 out of 5 stars
This addon has worked well for me but not sure what has happened lately. For some reason Threadvis doesn't work on some of my messages that I know have a thread associated with them. I'm using Tbird 38.0.1 on MacOS 10.11.3. It seemed to have happened when I started my new job and OS migrated to El Capitan, but not totally sure.This review is for a previous version of the add-on (2.2.0).