Multiple firefox profile, how to import specific one? (nightly profile)

multiple firefox profile, how to import specific one? (nightly profile)

❯ ll .mozilla/firefox/
drwx------   - a a 2019-01-15 23:16 main
lrwxrwxrwx  17 a a 2020-03-15 01:02 iw7z8vpn.default-beta -> i83ehrdl.default
drwx------   - a a 2020-03-20 15:12 Pending Pings
drwx------   - a a 2020-03-20 15:13 i83ehrdl.default
.rw-r--r-- 540 a a 2020-03-21 09:13 profiles.ini
.rw-r--r-- 183 a a 2020-03-21 09:13 installs.ini
drwx------   - a a 2020-03-25 14:15 Crash Reports
drwx------   - a a 2020-03-25 18:27 ak6zq87h.default-release
drwx------   - a a 2020-03-25 19:47 er49v80j.default-nightly <-- this one

Can’t try brave without password import. so painful…

how can I import nightly’s profile?