Except where noted, everything here applies to both Firefox 83 and the Firefox 78.5 ESR.

Policies

• A new policy has been added for ManagedBookmarks.

• The Preferences policy has been updated to support preferences that begin with general.autoScroll., general.smoothScroll., and signon..

• The OverrideFirstRunPage policy has been updated to support multiple URLs separated by a vertical bar (|).

• The WebsiteFilter policy has been updated to support blocking local files by using file:/// patterns.

• The DisableTelemetry policy has been updated to set the preference toolkit.telemetry.archive.enabled to false. We continue to recommend that you do not disable telemetry. Information collected through telemetry helps us build a better product for businesses like yours.