Problem with content
I've had that problem as well a few months bacck, but not with DPR, it seems to have occurred only with huffingtonpost.com, but that was resolved (by firefox, I assume). The DPR problem also happened with Chrome, but I did get one page that said something about updating DPR.
About 2 minutes after my initial post, it was fixed, and hasn't been a problem since.
Thanks for your feedback . . .
btw, I normall use Firefox Nightly, which is updated daily