On Windows, the updater from Thunderbird didnt update at all. You need to manually download the new exe and do it there, pretty weird. On Linux, the Flatpak updates normally. But having a really old profile seems to break things, my inbox was gone from the "bundled folders" view, so I set up a new profile again (using the -p argument, this is non standard!) So now: How do I export: * contacts * filters * accounts * set up calendars * custom local folders * local mails * ... from one Thunderbird to another? This is not especially my problem, but its a general one and its important. I simply need a way to export my filters, as I dont want to make them again. The rest is already done, except contacts, where I have no idea how they are actually used and it never worked for me. Using the Flatpak from Flathub on Fedora Linux