Don't get too excited, because this is a pre-alpha release -- that means it's too buggy to even be called an alpha. The developers say it probably won't "eat your phone, but bugs might cause your phone to stop responding, requiring a reboot".
You'll need a phone that's running version 2.0 or later of Android, and it's only been tested on theand the , two of the most pumped-up Android phones. It also has some memory-usage problems, so you could struggle if you're trying it on a less powerful phone such as the -- but owners should be fine.
We took the pre-alpha Fennec for a jaunt on our Nexus One and we were pleasantly surprised -- although it's sluggish at times, most of the features seem to be up and running well. We had a couple of crashes, and it's really too buggy to use as our main browser, but it gives a glimpse into a mobile browser that's packed full of fun stuff. That includes add-ons, which are like apps for the browser that give it more features.
You can check out photos and a run-down of Firefox Mobile's main features in our.
Download the pre-alpha from the developer's blog to install it on your phone.