Actually even before this announcement it worked fine in Firefox - you just had to change your user agent (or install one of the numerous extensions).
Google said it was because it was "slow" under Firefox, but since I never noticed a bug or any slowness on my two year old Macbook Air, it looked more like they just wanted to push Chrome to me.
Google said it was because it was "slow" under Firefox, but since I never noticed a bug or any slowness on my two year old Macbook Air, it looked more like they just wanted to push Chrome to me.