When I am asked to select a File in Thunderbird, there is no file selection dialog. Like no popup opens.
I am using nemo as my file-browser.
Hey, do you have xdg-desktop-portal-gtk installed? Could be https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1902915
I did not, but it didn’t make a difference. I’m on awesome as my wm.