Mozilla has unveiled the latest version of Firefox 4 web browser, which will be powered by the JägerMonkey JavaScript engine.

Running on the latest JavaScript engine it will be coming as a substitute for the TraceMonkey, which was initially released in Firefox 3.5. Mozilla. Mozilla makes use of the JavaScript engine to help make Firefox 4 the fastest browser in the market.

The developer David Mandelin posted on the Mozilla blog: "We created a new cross-platform whole-method JIT compiler in about 23,000 lines of code. It supports x86, x86-64, and ARM in an almost entirely shared compiler code base, the only JS engine that does so (to our knowledge)."

As per the company the released version of Firefox 4 offers a faster version when compared to the web browser and at the same time will be compatible to run with JavaScript-heavy websites, such as Gmail and Facebook.

The firm further added that demos and games works smooth on browser and at the same time the firm is working to test the viability of Super Mario game on the platform.