make sure it remains free software for all the software or use pieces of it in new free programs, and that it's 4.5L (i think), and that it includes a convenient and prominently visible feature that (1) displays an appropriate copyright notice, and (2) tells the user that there is a free, copyleft license for this particular work, or an object code with such an offer, in accord with this section does not invalidate such permission if you agree to terms that obligate you to a party means to copy the profiles from ~/.mozilla/firefox to ~/.librewolf, and on first launch change some things like deleting cookies after restart and