Using latest (of today) Firefox Aurora (22): Web Worker took 15 seconds, compared to 4 seconds without Using Chrome 26: Web Worker took 5 seconds, compared to

Using latest (of today) Firefox Aurora (22): Web Worker took 15 seconds, compared to 4 seconds without Using Chrome 26: Web Worker took 5 seconds, compared to 6.8 seconds without Using IE 10: Web Worker took 13.5 seconds, compared to 14 seconds without It really depends on what you are trying to achieve.