BSOD when multitasking and running overnight

[smithsunknown]

Windows 7 x64
Original operation system
OEM
2 year old - Gateway NV59C66u
2 year old OS (have not reinstalled)

My laptop will have a BSOD when I have several tabs open in Firefox. Also if the computer is left running overnight, every morning I awake to a non-functional computer. The screen never turns on and nothing is happening. The HDD indicator light is constantly on when this happens. Attached is the past 5 dump reports.

Any help would be appreciated.

 

[writhziden]

Your latest crash was caused by SafeConnect. Your crash reports were incomplete, so that is the best I can do. Remove the SafeConnect software.

If you need help, please follow the http://www.sevenforums.com/crashes-debugging/96879-blue-screen-death-bsod-posting-instructions.html and make sure the tool finishes gathering all information.