All platforms: Mozilla has just pushed out Firefox 3.1 Beta 1 to their servers, marking the first major step toward the official 3.1 release. They haven't yet officially announced the beta release, so the What's New page is a 404 as of this writing. Luckily we've already covered a lot of the features you can expect, so hit the jump for a closer look at what Firefox 3.1 Beta 1 brings to the table.

We've shown you just how fast Firefox 3.1 is compared to other browsers, an