The extension is ok, I have used it in Firefox and Chrome for a year now due to Authy shutting down the desktop client, however you still need your phone to confirm before it will send the code. I wish the extension would just generate codes on the computer.

It would be very handy if I could approve the code requests with my Apple Watch.

i like the extension, it works fine mostly and is comfortly with the app. but it crashes twitch.tv website quite often so i have to restart firefox. please fix