The irony of using the normative "should" to project your preferences onto Firefox, while expressing a desire that Firefox not do so on you.
Also - what about iPhones stubbornly showing green texts from Android messagers? That's not even "I'm sad you're using Android." It's more a passive-aggressive "I'm going to degrade your experience because your friend uses Android." Forget about emojis- Apple is weaponizing colors!