I have mixed feelings about this. On the one hand, this seems like a legitimately good product. On the other, I can't help but feel this would have had greater impact had the Mullvad team collaborated with the LibreWolf project. Sure they wouldn't be able to market it as directly, but I think their user base would be much bigger.

Edit: it seems NoScript is also included which... I'm not sure I personally agree with? But I'm also not a privacy expert so maybe I've missed something, but ublock origin should cover that operability. Someone with experience please correct me if I'm off base here.