Was I supposed to not diagnose jank using Chrome's frame analysis tools? Not profile memory allocations in its timeline? Develop my WebGL against an incomplete, broken and slow implementation to spare Mozilla's feelings? Firefox is a buggy and slow hunk of code whose maintainers are high on their own supply, and are only now starting to eat the humble pie now it's far too late. Simple as that.
Oh and the reasons why people switched to OS X are more related to connecting to wifi in under 1 second and implementing sleep/hibernate in a way that makes sense. Elegant solutions to real problems, not hack piled upon hack. Not that the hardcore free software nerds will ever get any of that, because it's too nice and shiny for them to even consider.