As others have said, this new version of the app is unresponsive on Firefox (91.0.2), and not an improvement for Chrome, either. The classic extension works great though: https://support.1password.com/cs/1password-classic-extension/
The new extension should definitely work well in Firefox, and we’ll be happy to get things running smoothly for you! Please do feel free to contact us via email so we can help you: support+x@1password.com
