It works fine for what it does, although usability with Firefox is not as good as it is in Chrome. But the one thing that really grinds my gears. I use 1Password for work passwords. I only want to sign in to 1Password on my work machine. I share the same Firefox account on all my machines. I DO NOT WANT 1Password popping up a new tab asking me to login EVERY TIME I OPEN MY BROWSER. It's like when you're reading an article and you get two lines in and suddenly a popup appears asking you to subscribe to their newsletter. It is super annoying.