I don't use Chrome either. I like Firefox - even if it is less secure (in principle) than Chrome (no process separation between domains or sandboxing of plugins

I don't use Chrome either. I like Firefox - even if it is less secure (in principle) than Chrome (no process separation between domains or sandboxing of plugins). The reason Native Client exists extends well beyond Adobe Flash Player. Native Client exists to enable your browser to run native code from any website (think compiled C and C++ code) without it being able to compromise the security of your machine.