Mozilla has released Firefox 9, which brings speed improvements and uses less memory than previous releases. In fact, this release effectively puts Firefox back on a level playing field with Google Chrome when it comes to speed.

If you’d like to try out Firefox 9, head on over to the Mozilla downloads page. If you’re already using Firefox you’ll be automatically updated to version 9.

The big news in this release is under the hood where Firefox now supports what’s known as Type Inference. Type Inference is a new feature for Firefox’s SpiderMonkey JavaScript engine and means that complex J...