I get this frequently. Usually when an update fires and I scroll. Have not yet been able to reproduce reliably. I really doubt it's overheating, since it takes a fraction of a second to happen and it couldn't heat up that quickly.

> it couldn't heat up that quickly

It could, actually, especially if it's not well maintained.

It's a $1200 GPU, I do make time to clean. I'm not saying it's Firefox specifically, perhaps a strange interaction between Firefox and the latest Nvidia drivers. But you're welcome to come check my machine.

I experience this bug and my GPU is definitely not overheating.

I will get the black box bug in outlook, temps are fine.

I've never seen this in Firefox but makes me wonder if its windows related instead of FF/Outlook specific

My Windows 7 + nvidia does these black boxes. The card also can't handle 2 monitors anymore (crashes the system from time to time).