The "iCloud Passwords for Firefox" extension has been taken over by Apple and is now just "iCloud Passwords":
The original developer confirmed the transfer on the old extension's Github:
The extension is a little glitchy so far, and some people are complaining of slowness, but it's nice to finally have an official option for us Firefox users!
iCloud Passwords â Get this Extension for ð¦ Firefox (en-US)
Download iCloud Passwords for Firefox. iCloud Passwords lets you fill passwords from iCloud Keychain when signing in to websites using Firefox.
addons.mozilla.org
The original developer confirmed the transfer on the old extension's Github:
GitHub - au2001/icloud-passwords-firefox: Firefox extension which lets you use your passwords stored on iCloud Keychain®.
Firefox extension which lets you use your passwords stored on iCloud Keychain®. - au2001/icloud-passwords-firefox
github.com
The extension is a little glitchy so far, and some people are complaining of slowness, but it's nice to finally have an official option for us Firefox users!