Skip to main content

Firefox 4 Beta 7 arrives, bringing Jagermonkey

Firefox 4 Beta 7 arrives from Mozilla
We don't know what a Jagermonkey is, but we want one as a pet

Firefox 4 Beta 7 has arrived from Mozilla, bringing a host of improvements to the popular browser.

The latest release's headline arrival is the wonderfully named JägerMonkey JIT which is described as a 'powerful addition'.

"The incorporation of the new JägerMonkey JIT to the Firefox SpiderMonkey Javascript engine means you'll notice a faster start-up time, improved page-load speed and the performance of Web apps and games," states Mozilla

Hardware acceleration

The beta also incorporates the hardware-accelerated graphics that we are beginning to see more and more of in the browser market – tapping into your computer's graphics capabilities.

Importantly, Mozilla is now saying that the extension API is stable – meaning that developers can start finalising their wares.

Firefox 4 Beta testers will receive automatic updates to the latest release or you can download it from

Patrick Goss

Patrick Goss is the ex-Editor in Chief of TechRadar. He is a passionate and experienced journalist, and he has been lucky enough to work on some of the finest online properties on the planet, building audiences everywhere and establishing himself at the forefront of digital content.