Does Auth0 support a password hash import with Firebase’s Scrypt algorithm?
Auth0 currently does support importing hashes with the Scrypt algorithm, and while Firebase uses Scrypt, their implementation is non-standard so these hashes are not accepted by Auth0:
It is recommended to import users without hashes or to import users through automatic migration with a Custom Database connection.
To request this functionality in a future release, submit feature requests using this form. This is a direct line to our Product team and the best way to communicate your needs.