Is there a way to copy add-ons data from one (broken) profile to another one?

Is there a way to move data between add-ons in two profiles?

I’m looking for storage.local data - but this is now stored using IndexedDB so it’s that easy anymore.

Copying whole profile into a new profile somehow didn’t worked - addon data was not there anymore, but I believe they are still on the drive, probably in the folder:

\storage\default\moz-extension+++some_uuid_of_the_addon

But copying just that folder seems to break whole storage engine.

Maybe I’m copying wrong folder?