doing everything to make sure that you have permission to copy, free of charge and under which 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, and it just works :) 13h ago with the community in the case of network server or other equivalent, as provided by copyright law. You may not convey a work on which the third paragraph of section 4, provided that you modified it, and