Ask HN: Reasons for missing mobile Firefox features?

The last three years I tried to take more care about my privacy. Can someone tell me the reason why the mobile Firefox app for iOS has such a limited set of privacy settings?

Example on the desktop:

I drop all cookies at the end of a browser session. Only a specific whitelist is kept (Google, Netflix, Facebook, and some more), but most of them are assigned to a container. And opening another website outside the container URL will get a fresh session.