As far as I can tell, copyright and Jaxx no more guidance BIP39 passphrases. The consumer interfaces never offer you the user any suggests to enter one particular whilst restoring wallet. Having said that, I have not been equipped to substantiate this with support from either wallet maker. bip39-phrase.com is https://webookmarks.com/story4335021/bip39-seed-phrase-mnemonics-generator-an-overview