Firefox is available for Ubuntu, and is included with some releases. Yes, release 13.0 is a beta or pre beta release, but should go stable release before long.
For the non-geek types (including me) a load and go version for this laptop isn’t quite ready yet. It is a good value for the money, and at the Fry’s price, I could stand playing with it as is till the stable Ubuntu release is available.
I am currently running Ubuntu 11.10 with Firefox on a 8 year old laptop. Upgraded to 12.03 and my video card wasn’t well supported, so redid the 11.10, GTG now.
Without forcing one thru a Cloud server....if I can express it that way.