Firefox desktop should be installed on systems meeting minimum requirements for best performance.
How to choose between rapid release and extended support release (ESR).
Firefox Enterprise is a version of Firefox designed specially for enterprise needs.
Disable automatic updates through the DisableAppUpdate policy, and get Firefox beta builds to test features in your environment before deployment.
Test future versions of Firefox before they are released to the public by downloading Firefox Beta, or Nightly.
Firefox offers an Extended Support Release (ESR) based on a regular release of Firefox for desktop for use by organizations. Learn more.
This article describes in detail how profile selection used to work, how it now works in Firefox 67 and how we migrate users from earlier versions.