The Wayback Machine - https://web.archive.org/web/20100214142042/http://jsbenchmark.celtickane.com:80/Results.aspx

Most Popular Browsers

BrowserAvg ScoreRelative Speed
Chrome 4.03471x
Safari 4.03071.1x slower
Firefox 3.61352.6x slower
Opera 101312.6x slower
IE 8.0556.3x slower

Beta-version Browsers

BrowserAvg ScoreRelative Speed
Chrome 5.04111x
Opera 10.502381.7x slower
Firefox (Minefield) 3.7a1pre1692.4x slower

Firefox Version History

BrowserAvg ScoreRelative Speed
Firefox 3.61351x
Firefox 3.51221.1x slower
Firefox 2.0881.5x slower
Firefox 3.0811.7x slower

IE Version History

BrowserAvg ScoreRelative Speed
IE 8.0551x
IE 6.0282x slower
IE 7.0282x slower

Chrome Version History

BrowserAvg ScoreRelative Speed
Chrome 5.04111x
Chrome 4.03471.2x slower
Chrome 3.03141.3x slower
Chrome 2.02751.5x slower