Yes, Firefox was already configurable through enterprise policies that an admin could deploy.

Firefox Enterprise tries to remove as much friction there as possible, and adds a pile of features like deployment monitoring, policy changes while running, device posture checks, various security features like SIEM logging, etc.

The other part is that you get the option to run all supporting services entirely on premise, so the browser never has to "phone home" to us, but you still have working updates, sync support, and so on.