Mozilla is building a standalone password manager app for Android and iOS called "Lockwise" (formerly "Lockbox") that will also integrate with Firefox:
^ yea. My guess is that they're trying to improve the basics to the point where third party ones aren't necessary, which I'm fully in favor of. I don't really think there's any risk to them removing other managers, just competing.
I'm just curious if they intend to fully replace third-party password managers.