Arstechnica previews the most recent Firefox 3 Beta 3. A lot of polished edges, including the first taste of the new Firefox branding, the “back / forward” keyhole design—which I honestly think requires a bit of polish. That said, the thing is shaping up quite impressively. The builds I’ve tried are fast again, and Firefox 3 looks like a winner, overall. Mac users will be thrilled to know that Firefox now supports native widgets—a feat they said couldn’t be done, even though Camino did it.