Rated 4 out of 5 stars
Great add-on! I use it with Multiple Tab Handler, Informational Tab & Tab Catalog on FF3.6.3 in Vista currently. They all work pretty well together!
I have to use earlier version of this add-on (ver. 0.10.2010040201), because, for some reason, the bug fix in ver. 0.10.2010043001 of this add-on for use with Session Manager actually broke it for me. (I mean the Session Manager did not load saved sessions correctly in later versions of this add on for me. Guess I am the opposite of everyone else?)
But using earlier version (ver. 0.10.2010040201) works well for me too. So not much of a problem for now.
Thanks for this add-on & the tip included in this site about how to disable it from building trees automatically. That was exactly what I was looking for! ^_^