Product Firefox Release Channel release Version 50.1.0 Build ID 20161208153507 OS Windows 7 OS Version 6.1.7601 Service Pack 1

https://support.mozilla.org/en-US/kb/update-firefox-latest-version 51.0.1 +++++++++++++++++++++++++++++++++++++++++++++ Signature: @0x0 | nvd3dum.dll | CreateDeviceLHDDI

EMET.dll = Microsoft Corporation

Nvwgf2um.dll = NVIDIA Compatible D3D10 Driver = NVIDIA Corporation

nvd3dum.dll = NVIDIA Windows Vista WDDM driver

COM_Sensor.dll = Digital Guardian = Verdasys, Inc

OS_PLUGIN.DLL = Trojan Program

os_plugin.dll = Digital Guardian = Verdasys, Inc

ame_smtpsensor.dll = AE_Agent_Plugin.dll = Digital Guardian

ae_mailsensor_plugin.dll = Digital Guardian

dgapi.dll = Digital Guardian = Verdasys, Inc

You may have ad / mal-ware. Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Run most or all of the listed malware scanners. Each works differently. If one program misses something, another may pick it up.

If there is still a problem, Disable Digital Guardian and contact its support.

You can try to disable hardware acceleration in Firefox.

• Options/Preferences -> Advanced -> General -> Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

You can check if there is an update for your graphics display driver and check for hardware acceleration related issues.

• https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration