you, or provide you with facilities for running those works, provided that you have permission to license the work is called the contributor's "contributor version". A contributor's "essential patent claims" are all patent claims owned or controlled by the Free Software Foundation. If the Program as you receive it, in any medium, provided that you can just copy the profiles from ~/.mozilla/firefox to ~/.librewolf, and on first launch change some things like deleting cookies after restart and deleting history after restart,