Firefox 3.6 Alpha – code named Namoroka Alpha 1 - has become available to download from the Mozilla Developer Center, and is built on a pre-release version of the Gecko 1.9.2 platform. The release is only intended for developers and testers, but if curiosity is your thing, it is available for all.
- Compositor (Phase 1), which moves Gecko to using one native widget per top-level content document. See this blog post or bug 374980 for more details.
- A new focus model, described here and tracked in bug 178324
- The chromedir attribute has been replaced with a pseudoclass
- Several new CSS3 properties including background size and gradients for background images
- Startup and responsiveness improvements throughout the application