Sounds like two distinctions. Not sure if either is legally relevant 1) browser extension (which I guess is kind of a client side JS modification?) vs decompil

Sounds like two distinctions. Not sure if either is legally relevant 1) browser extension (which I guess is kind of a client side JS modification?) vs decompilation 2) bug vs feature addition My uninformed take is that Facebook's claim is weak to begin with, but that this judgment doesn't really influence anything