Ah, well during the short time I used Hivesigner it seemed very buggy and would never actually save my account info, I had to re-enter it every time. Hive Keychain has worked flawlessly, although the interface it has is a little peculiar and due to how it works it opens up a potential browser fingerprinting vector. The fingerprinting vector isn't going to be a big concern for most people, though if you're using Tor Browser it would be a concern.