Does what it says on the tin, would be nice to search within the browser extension rather than opening the app though.

This addon works very well with Firefox on MacOS 15 Sequoia. Now I can use passkey via iCloud Password.app on both iPhone and MacOS. Thanks to the original developer and Apple!

一直在考虑用第三方的，现在有了官方的，可放心了，

It works perfectly on the latest Mac OS & Firefox versions.
Not sure why people complain it doesn't on Windows. The description of this extension states it clearly:
"The iCloud Passwords extension is compatible with macOS Sonoma or later. It is not available for Windows at this time."

Didn't you read that?

I was waiting for this for ages. Thank you Apple.

Works perfectly on Firefox (including 133). Just make sure you have an active session (click extensions icon then select iCloud passwords).

Super! No problems. On iMac M1 and MacBook Pro M4 14" both with Sequoia 15.1.1 and Firefox 133.0

Works like a charm. finally! (FF 133.0, macOS)