Not sure if you saw, but Mozilla announced desktop extensions coming to mobile soon too.

Haha, the duality of the NYer. I’m also a NYer but upstate.

Bunch of people I know (as an American) use Signal and Telegram along with iMessage. Your cousin sounds like a pretentious dickhead

It’s a way to share your contact information with other iPhones. Similar to AirDrop but you can setup what gets shared and how their phone saves your contact info.