Rated 4 out of 5 stars

This was a great add-on, but, sadly, with Thunderbird 31+ it no longer works. Not having a customized startup folder is a nuisance every time Thunderbird starts! If it can be done, please fix this add-on to work with the latest versions of Thunderbird. If that can't be done, does anyone know of an add-on that allows one to customize the startup folder in Thunderbird?