Blank Spaces In Firefox Window After it's Closed?

[JoeFromSD]

I have a strange issue. Sometimes when I close a window (I think always a firefox window) it won't actually close, it's a bit transparent, and when I pas my mouse over it , it creates these blank areas you can see the desktop behind,

hard to explain, but this image shows it.

any idea what's happening?? (Excuse my crowded desktop

Win 7 with a NVidia GTX 960 Graphics Card

 

[Tekno Venus]

Hi,

Try turning hardware acceleration off in Firefox. Options -> Advanced -> Uncheck "Use Hardware Acceleration when available"

Regards,
Stephen

 

[JoeFromSD]

Right on Stephen, I'll give that a try!

 

[JoeFromSD]

Thanks Stephen, seems to be working!