Hi

Downloads is currently not a menu option in Firefox Preview, but is something that may be included in a later update. In the meantime, downloaded files can still be found in the "downloads" folder on your device, accessible through a file manager application.

when you download a large file it does not show the percentage . can you please add this feature?

Really....? What's the use of this update when essential basic features aren't available upon that we can't roll back to previous version