Been using Last-pass.. They didn't have LP with Firefox 57+ and I saw Bitwarden so I figured I'll try it. It's wonderful, quick, looks nice and has all the options you would need. I like the fact 2-way authentication isn't required on the extension, just the website. I'd imagine it's that way because some things need to be done or can only be done through the website. Nonetheless, it's a nice option.