You can use a yubi key, or IMO better yet, a trezor crypto wallet(as unlike yubi, you can clone and restore it more easily with your seed words). Not sure how y

You can use a yubi key, or IMO better yet, a trezor crypto wallet(as unlike yubi, you can clone and restore it more easily with your seed words). Not sure how yubi works, but trezor generates deterministic passwords based on your private keys. Plus it's open source so I guess if they go bust you should be able to retain access to your passwords and to clone/restore ability forever. Built into browser would be more user friendly, admittedly, but in my opinion this is quite good too, and arguably more secure as your private key is not exposed to your PC.