windows 7 ultimate crashing in Firefox (mostly)

[ddtippey]

Windows has been rebooting randomly while webrowsing. Temps look OK in Coretemp, Speedfan, etc. Ran the SF Diag tool and uploading info.

 

[Arc]

Hi ddtippey. I want to a question before we start troubleshooting, coz it may be a vital information here.

What is the version of the OS this computer you brought with (I guess it was Windows Vista Home Premium 64-bit Edition) and how have you installed windows 7 on it, and how long ago?
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BiosMajorRelease = 1
BiosMinorRelease = 160
BiosVendor = Phoenix Technologies, LTD
BiosVersion = 841P041G
BiosReleaseDate = 05/16/2008
SystemManufacturer = Gateway
SystemProductName = DX4710-UB301A
SystemFamily =  
SystemVersion = OEM
SystemSKU =  
BaseBoardManufacturer = Gateway
BaseBoardProduct = G33M05G1
BaseBoardVersion = MP