Our Download of the Day is Firefox 12.0 Beta 5.

Experience cutting edge features but with more stability

Provide feedback to help refine and polish what will be in the final release

What's New:

Performance Enhancements: Faster startup time on Mac, Windows, and Linux

Optimized Memory Use:

Improved memory management: For many users, memory use is reduced by 30 percent or more, responsiveness is enhanced

The JavaScript garbage collector runs frequently to free up more memory when Firefox is idle

Firefox Sync: Bookmarks and passwords now sync instantly

Enhanced Font Rendering: Fonts are rendered clear and sharp

New platform features and developer tools:

Telemetry: Users can opt-in for automatic memory usage, performance testing and reporting to help improve future versions Firefox

Web timing spec: Measure performance characteristics of websites as users experience them

Azure Direct2D for Canvas: Canvas-based animations on the Web are dramatically faster

You can read more on Firefox 12.0 Beta 5 and other beta releases, as well as download them, here.