Firefox 4 gets much, much faster

One of the major components essential for the future of Firefox just landed in the beta build of the browser, and it gives the open-source browser the page-rendering speed boost that it had been lacking.

Available for Windows, Mac, and Linux, Firefox 4 beta 7 introduces JagerMonkey, Mozilla’s next-generation JavaScript engine that puts the browser in the same ballpark as its high-speed competitors. The old TraceMonkey engine was slow enough to no longer be in the same league as Chrome, Opera, Safari, and the Internet Explorer 9 beta.

 

Mozilla’s internal benchmarks show significant JavaScript rendering improvements for Firefox 4 beta 7’s new JagerMonkey engine.

(Credit: Mozilla, Inc.)

 

Mozilla describes the improvements as incorporating the JagerMonkey JIT compiler into the new SpiderMonkey engine, and says that users can expect to see significantly faster start-up times, page-load speed, and JavaScript-intensive Web tasks such as running apps and playing games. The company’s internal benchmarking shows Firefox 4 is three times faster than the current Firefox 3.6.12 on both Kraken and Sunspider JavaScript benchmarks, and five times faster than Firefox 3.6.12 on the V8 benchmark. Engineer David Mandelin stated in a blog post that Firefox 4 will be “a little bit faster” by the time it’s finished.

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Reg Cure

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