Very buggy. Often refuses to open when you click on the extension icon (just flashes and immediately closes). It's very expensive compared to other similar services and given the premium price I'd expect something that works properly. Unrealistically difficult to install on a mobile device so this extension isn't really great for cross-device usage.

Very nice extension, but unfortunately not there yet.
Using extension on linux. Unable to select and delete mutiple contacts, unable to edit contact.
Sometimes my cpu usage gets 100% when submitting a form and I have to close browser or disable the extension to free my cpu - definitely a problem of 1Password X, when it is disabled, form submit proceeds ok.

1Password is one of the best software I ever used in my life. Works very well (including this add-on)!

So thrilled 1Password finally works on Linux Firefox!! Just look at the recent reviews for the LastPass extension and you'll see a community desperate for a password manager that works. 1Password auto-fills correctly, doesn't look terrible, has clipboard support that works, doesn't crash long pages... you know the things you expect. I used 1Password years ago when I was only Mac/iOS, and had to move off when I switched to Android (and then Linux). Now I can use 1Password again and I've missed it so! Thank you AgileBits!

This plugin finally allows me to run 1Password on Linux inside of Firefox, and lets me avoid the privacy sucking Google Chrome world. Thanks 1Password devs! you rock!

Security-wise 1Password is top-notch. However, the add-on lacks polish and feels clunky.

Best omni-platform PW management solution.

How to change the shortcut? Ctrl-period is conflicting with Multi-Account Containers.

Now works perfectly again. The extension has also really improved over the last few months and is now better than the native clients.

Leider kann man seit Neuestem auf dem MacBook Pro mit Touch ID 1Password nicht mehr mit TouchID entsperren. Bitte wieder einführen, das ist ein riesen Comfort den keine*r missen will!

It pales in comparison to the 1Password + Desktop app combo. I find it often doesn't sync right away; sometimes it doesn't sync for minutes at a time. The auto-fill is also very hit-or-miss. A specific recent example: when trying to login on xbox.com, the auto-fill popup appeared, I told it to auto-fill, and then? Nothing.

Sometimes there is a delay with the auto-fill (usually upwards for 3-5 seconds). This time it just never happened, so I had to use the Desktop App plugin to do it instead.

It's frustrating because I often need to switch between a Mac and Linux environment, and 1PasswordX is the only product supported on Linux (please make a desktop app).

The best and only add-on you ever need. Super smooth and fantastic.

Best password manager by far