Firefox 60 was the first release with official Group Policy support [1]. Starting from version 64 you could also configure Firefox for macOS using configuration profiles [2].
Both the ADMX templates for Windows and preference .plist for macOS are available from GitHub [3]. The full list of configurable preferences can be found on SearchFox.org [4].
As of Firefox 67 there are quite a lot of settings that can be managed now. Certainly enough for Firefox to be deployed in enterprise environments.
There was also a really interesting talk at MacADUK 2019 by Mike Kapley on the work Mozilla has done so far to support enterprise deployment [5].
Both the ADMX templates for Windows and preference .plist for macOS are available from GitHub [3]. The full list of configurable preferences can be found on SearchFox.org [4].
As of Firefox 67 there are quite a lot of settings that can be managed now. Certainly enough for Firefox to be deployed in enterprise environments.
There was also a really interesting talk at MacADUK 2019 by Mike Kapley on the work Mozilla has done so far to support enterprise deployment [5].
[1] https://bugzilla.mozilla.org/show_bug.cgi?id=1433136
[2] https://github.com/mozilla/policy-templates/blob/master/mac/...
[3] https://github.com/mozilla/policy-templates
[4] https://searchfox.org/mozilla-central/source/browser/compone...
[5] https://youtu.be/jB_5h4ihih4