Wait until you hear about The Sims

“No, don’t [do that]” is not a double negative, it’s just two independent negatives in a row, they don’t affect each other. A double negative would be like “don’t not do that” which will mean “do not fail to do that” to most people.

Guess what Edge and Chrome do if you make Firefox the default browser? They all harass you if you run them when they aren’t the default. At least Firefox respects the “don’t bother me about this again” checkbox