Device Compliance | Conditional Access | Firefox
Please allow Firefox to be used with Conditional Access policy to be able check for Device Compliance.
Many users use Firefox as primary browser, but then they are limited in SharePoint.
The new Firefox Nightly Build 72.0a1 is able to import client certificates automatically from OS. Maybe Microsoft can implement Conditional Access now with Firefox?
Bas Roovers commented
I wonder why Firefox is not supported. Is it because Firefox isn't able or because Microsoft thought the browser isn't popular enough?
There is a manual workaround. To get it working, first make sure CA works with Safari. Then export the MS-Organization-Access from Mac Keychain and import it to Firefox.