Disclaimer:

The emulator wont run well on these browsers

Firefox 4+ (*nix versions of Firefox have audio lockup bugs) - Retest this

Firefox 28+ (Web Audio API creates 500 ms or greater latency, forced by Firefox)

Opera (Crashes + Slow + Graphics Glitches) - Retest this

Safari 5.1.X (Below 5.1.5) (Slow or crashes)

IE 1-8 (Cannot run)

IE 9-10 (Slow, No native audio support (Requires flash bridge in the audio lib))

IE 11 (No native audio support (Requires flash bridge in the audio lib))

Firefox 1-3.6 (Slow)

ALL VERSIONS OF MOBILE SAFARI AND OPERA (Stop pestering me, iOS just CAN'T run this well.)

If you aren't using one of these, you should be fine.

To the emulator!