http://www.mozillazine.org/Deer Park Alpha 2, a preview release of Mozilla Firefox 1.1 aimed at developers, is now avaliable for download. More details and download links are available at the Mozilla Developer News Blog. As reported earlier, Deer Park is a code name for Firefox 1.1, and does not use standard Mozilla Firefox branding, in an attempt to dissuade end users from upgrading.
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Deer Park Alpha 2 is an alpha release of our next generation Firefox browser and it is being made available for testing purposes only. Deer Park Alpha 2 is intended for web application developers and our testing community. Current users of Mozilla Firefox 1.0.x should not use Deer Park Alpha 2.