Hi everyone,
I’m trying to keep Thunderbird clean and don’t want to install any third-party add-ons. But I still need to import a few MBOX files. Does Thunderbird support native import somehow, or am I stuck with plugins?

I skipped the plugin mess and used SysTools Thunderbird Import Wizard. It is a standalone tool that makes it super easy to import MBOX to Thunderbird . Any other clean methods without using add-ons?