Comment 16 for bug 1850529

It looks like the only way to get the extension data out of the old Firefox profiles is to query some sqlite databases that are located in `<profile_dir>/storage/default`. I found one of the important extension directories, but querying the database just returns gibberish.

For anyone else dealing with the problem, I'm wondering if it might be solvable by booting Ubuntu 18.04 from a thumb drive, installing the nightly Firefox version in it, loading the profiles there, exporting any needed data via the extension settings, and then importing it back into the stable version after booting from the hard drive again. I'll try it tomorrow.