I can reproduce the problem with the corrupted global-messages-db.sqlite.
When using that file, the thunderbird main UI is mostly empty, the burger menu doesn't open, and opening application preferences or account settings from a "compose new message" window doesn't work either.
I can reproduce the problem with the corrupted global- messages- db.sqlite.
When using that file, the thunderbird main UI is mostly empty, the burger menu doesn't open, and opening application preferences or account settings from a "compose new message" window doesn't work either.