Compatibility with session managers
In the firefox addons site you write that TreeTabs is incompatible with some session managers. That's an unhappy situation, because iirc, Tab Session Manager can be used to migrate sessions from Firefox to Chrome (and vice versa), and there are not a lot of ways to do that.
I want ask how exactly are the addons incompatible? Only in the sense that TSM will lose the tree structure, or will it actively interfere with TT ? Maybe a particular combination of preferences will make them compatible?