NIS 2012 update

Hi there, hope the questions are posted already:

1) I have 3 PC NIS 2010 account. 2 of them has been succesfully upgraded to 2012. My 3rd laptop has been fully reformatted. Should I install NIS 2010 and the upgrade to 2012 or I can just download the free trial 2012 and then activate with my SN?

 

2) NIS 2012 supports Google Chrome. Does this mean that also NORTON FAMILY supports Google Chrome? Norton Family does not support Firefox 6 and I'm willing to switch at this point.

 

Thanks in advance for your help