I have the same problem, but you at least get the option to open the PDF within firefox.
I dont get that option.
I have tried reinstalling and even installing a previous verision.
I have the same problem, after installing Adobe Reader Ver 9.4.0. Using FF Ver 3.6.12 and XP home edition. Prior to this last Adobe installation, I could always download PDF documents from the Internet. But now, when I try to download, I first get an all white page for a second or two and then the page goes all black and nothing happens after that. Have tried it many times, and always get the same result.
I can still open PDFs from those stored on my Hard Drive OK, but I can no longer open or download any PDF from the Internet.
Has to be a defect in the latest Adobe version. Is there any fix for this?
OK, I fixed the problem:
a) Uninstalled Adobe Reader Ver 9.4.0
b) Installed Adobe Reader Ver 7.0
Now it works just fine, and very fast too. Sometimes, "progress" is not always actually progress...