Download Firefox 9 a day early and enjoy a 20%-30% increase in performance

Download Firefox 9 a day early and enjoy a 20%-30% increase in performance

While Mozilla was promising to release version 9 of its Firefox browser tomorrow, the official download links are live now.

Huge performance changes have been made in this release, while there aren’t any user interface changes that you’ll notice.

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The double-digit increases in performance that most are reporting come from a new feature called “type inference”, created by Mozilla developer Brian Hackett. The feature now quickly chooses how to handle JavaScript, which doesn’t require a developer to define a variable. That makes the browser work overtime, but with type inference, the difference in performance is definitely noticeable.

Here are the rest of the changes and updates that come with version 9 of Firefox:

Added Type Inference, significantly improving JavaScript performance
Improved theme integration for Mac OS X Lion
Added two finger swipe navigation for Mac OS X Lion
Added support for querying Do Not Track status via JavaScript
Added support for font-stretch
Improved support for text-overflow
Improved standards support for HTML5, MathML, and CSS
Fixed several stability issues

You can download Firefox 9 for Mac, Windows, and Linux now.

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