Import from T'bird profile?

(First, I am finding it a little confusing where I should be posting, here (Discourse) or here Forums, or, here Topicbox?)

Is there a way to import from an old TB profile - as there is a SeaMonkey profile. I know there is in upcoming 102. If there’s no official profile Import until 102, is there any way to trick TB into importing a TB profile by disguising it as a SeaMonkey profile?