The best TB addon Rated 5 out of 5 stars
This addon is very important for me and probably the best one for thunderbird. There is a small problem I have started seeing offlate. Not sure what triggered it, everytime I open Thunderbird, I get the First run assistant Pop-up. Even though I click on "Review changes" or "Apply changes", nothing happens and the pop-up again shows up the next time I open Thunderbird. This is TB 17.0.2 on Ubuntu 12.04.
Edit - Uninstalled and installed it back and the problem seems to have gone.
Is Thunderbird shutting down properly? Which version of the addon are you running? (You may want to upgrade to the latest one.)