[richardwigley]

When I use firefox it says 'too slow? try chrome' - it is much slower on firefox - is firefox that bad or is it just optimized for Chrome?

[izietto]

I suspect the first... looking at the code it's a "standard" canvas managed via d3js, and the implementation [0] isn't odd

[0] http://map.ipviking.com/ipviking.js