FireFox 3 For Mac OS X: Firefox 3 Beta is based on the new Gecko 1.9 Web rendering platform, which has been under development for the past 27 months and includes nearly 2 million lines of code changes, making this the best Firefox Yet! Firefox 3 Beta is based on the new Gecko 1.9 Web rendering platform, which has been under development for the past 27 months and includes nearly 2 million lines of code changes, fixing more than 11,000 issues. Gecko 1.9 includes some major re-architecting for performance, stability, correctness, and code simplification and sustainability. Firefox 3 has been built on top of this new platform resulting in a more secure, easier to use, more personal product with a lot under the hood to offer website and Firefox add-on developers. Firefox 3 includes more than 900 enhancements from the previous beta, including drastic improvements to performance and memory usage, as well as fixes for stability, platform enhancements and user interface improvements. Note:Beta or prerelease software is not intended for inexperienced users, as the software may contain bugs or may potentially damage your system. We strongly recommend that users exercise caution and save all mission-critical data before installing or using this software. Firefox, the award-winning Web browser, is now faster, more secure, and fully customizable to your online life. Firefox empowers you to accomplish your online activities faster, more safely and efficiently than any other browser, period. Built with Tab browsing, popup blocking and a number of other seamless innovations, Firefox really gets the job done better. The wait is over. Firefox empowers you to browse faster, more safely and more efficiently than with any other browser. Join more than 25 million others and make the switch today: Firefox imports your Favorites, settings and other information, so you have nothing to lose.