As far as I'm able to tell, copyright and Jaxx no more guidance BIP39 passphrases. The consumer interfaces do not present the person any usually means to enter one though restoring wallet. Having said that, I haven't been able to verify this with support from both wallet maker. BIP39 and https://socialmediainuk.com/story20407249/bip39-seed-phrase-mnemonics-generator-an-overview