I installed the new Firefox for Android on both my Galaxy phone and Nexus 7 tablet and at first glance I'm loving it more than Chrome which has some real issues.
The biggest problem Firefox solves for me is the text area edit control on WebmasterWorld goes bat crap crazy trying to edit it in Chrome, esp. if you're zoomed in, the cursor bounces all over the place and never where you want it.
Editing a post on WebmasterWorld works perfect in Firefox.
Not to mention I was never a fan of the UI on Chrome, the list of bookmarks with the itsty bitsy icons you can't see, even on the tablet, it's bad.
I tried Dolphin as an interim solution and it has it's merits, such as giving my IP intel and stuff that I need, but it's still no Firefox.