ArcticFox, currently in my own fork, succesfully compiles natively on MacOS 10.6 Snow Leopard and runs! 64 bit currently.
Great news for those who use older but still perfectly capable Macintoshes....
ArcticFox derives from PaleMoon 27 which in turn is FireFox derived.
I tried Facebook and even WebGL samples as this screenshot shows.
This Blog entry is written natively on my MacBook and ArcticFox.