Don’t use your FC wallet keys in other wallets. 

If you get compromised, there is no way to rotate the wallet with our key storage model today. 

It’s ok to export your keys and put in a password manager, or to send funds out to another wallet.

Please don’t trust a password manager, if anything, separate your seed into two password managers.

And if you ever used LastPass for anything, rotate your passwords and especially your keys bc they were breached and I personally lost everything (inc the BTC I bought at $8k) a year ago due to that.