Earworm by Vulfpeck, while relevant to the topic, is good too.

I had the gba version and it was a lot of fun. More like a puzzle than a typical platformer, and all stages are basically one screen, so it’s good when doing other things. I’d watch TV, and play during commercials.

It’s easy to not have Firefox on your device, just don’t install it. Why should apple prevent you from being able to do that?

They totally do though. You can ONLY use webkit on any iOS device. Chrome, Firefox, etc. they all are forced to use webkit on iOS. Neither Google or Apple are treating the web nicely, but at least you have a choice to use a different browser. Apple makes that effectively impossible.