Review for ThreadVis by Startouf
Rated 5 out of 5 stars
DOES work with tb 24.
This plugin is just awesome. It adds very useful information, in a very comfortable way (a graph with color, with time representation, and with cool popups).
I especially like how it shows e-mails related to thread that you haven't received.
To create your own collections, you must have a Mozilla Add-ons account.