Random BSODs, ntoskrnl, driver power state failure reports on minidump

Sorry for the late reply, Your dump files are not opening for me.
But you should remove some add ons to firefox, specially the adxloader.dll

Event[10757]:
Log Name: Application
Source: SideBySide
Date: 2012-10-03T15:36:32.000
Event ID: 9
Task: N/A
Level: Error
Opcode: N/A
Keyword: Classic
User: N/A
User Name: N/A
Computer: RWT-PC
Description:
Activation context generation failed for "C:\Users\RWT\AppData\Roaming\DocuSign\DocuSign Ink\adxloader.dll.Manifest".Error in manifest or policy file "C:\Users\RWT\AppData\Roaming\DocuSign\DocuSign Ink\adxloader.dll.Manifest" on line 2. The manifest file root element must be assembly.

It may be the cause of the crash while using firefox.

Just a question, when the keyboard and mouse was inactive and you got the crash, was the Cyberlink editing program in use? The event log says so, and actually that program failed there.

You should update the nvidia display driver, too.

Code:

Driver    c:\windows\system32\drivers\nvlddmkm.sys (8.17.12.7527, 10.09 MB (10,583,656 bytes), 6/23/2011 6:38 PM)

Update your WiFi driver.

Code:

Driver    c:\windows\system32\drivers\netw5s32.sys (13.1.1.1, 6.44 MB (6,755,840 bytes), 1/13/2010 3:36 PM)

Update ethernet controller driver.

Code:

Driver    c:\windows\system32\drivers\yk62x86.sys (11.43.1.3, 310.28 KB (317,728 bytes), 5/26/2011 2:29 AM)

Free up the startup.

1. Click on the Start button
2. Type “msconfig (without quotes), click the resulting link. It will open the System Configuration window.
3. Select the “Startup” tab.
4. Deselect all items other than the antivirus.
5. Apply > OK
6. Accept the restart.

Let us know the situation.

You are welcome. Update us with the situation :)