Hello, sorry for the delay.
You just need the iOS version to use this feature. The browser extensions are free.
Sharing items is not possible yet but something we definitely want to add in the future!
Happy to know you liked it ;) I don’t have plans for Android just yet. Secrets makes use of many of Apple’s frameworks so porting it is not an easy task. I’ll count your +1, though.
Not sure I understand what you're asking. I don't think FF has an API where I would be able to sync would it. But if you can export your logins to a CSV you can import them with Secrets for Mac (importing is not yet possible on Secrets for iOS).
If you do want to use Firefox on iOS (irrespective of having your logins there or not), Secrets is also able to fill in FF using iOS's Password AutoFill feature.
Finally, and as side note, on iOS 14 you should be able to set Firefox as your default browser on iOS.
>If you do want to use Firefox on iOS (irrespective of having your logins there or not), Secrets is also able to fill in FF using iOS's Password AutoFill feature.
iCloud Keychain is handy for simple use cases. But it quickly breaks down if you want to have a good password habits.
For example, I use my Apple ID to login to a bunch of different Apple sites. With the keychain that would create separate entries for each site although they are the same. Change your password and you'll end up with items with outdated passwords (which you'll only find out when you try filling them).
The keychain is also cumbersome to create items manually (imagine you need to save an SFTP or VNC login?). Furthermore how would you have access to these items on your iOS device?
You also can store more than just passwords with Secrets.
Recent versions of Keychain on OS X/macOS (and iOS I think) ask if you want to change other entries with the same username from the same domain (i.e. appleid.apple.com and developer.apple.com) when it detects a change.