"iCloud Passwords lets you fill passwords from iCloud Keychain when signing in to websites using Firefox." No, it doesn't - not under Windows.

"Not available for Firefox for Windows." Why the hell not, Apple? Edge and Chrome are the most privacy-invasive products in the known universe but they're the only ones you support? The value of having iCloud passwords under Firefox for Mac is marginal, because... WE ALREADY HAVE A PASSWORDS APP.