A quick update on my problem. After I posted this issue, I remembered seeing a post somewhere that mentioned an unfixed bug that occurs when the downloaded file is being saved to a folder on a network computer, not the computer from which is was downloaded. This is what I am doing. So, to test this, I changed the location where FireFox saves downloaded files from the mapped network location to a folder on the computer I am using to do the the download. Guess what? The downloaded files are OK and not considered "corrupted." I cannot find the post that indicated that this is a problem with FF transferring the file to the network computer without giving it the full NTFS file properties, but this appears to be the issue. So, I guess that I just resolved my own issue. Go figure.

I am having the same problem. My default download folder is on a network share. Most of the time when I download an executable or a zip file, the file is corrupt. I have been having this problem for weeks. It did not occur to me that it was a FireFox bug, until today. I am surprised more people are not reporting this problem. Perhaps they are as unsuspecting as I was.

My configuration: Win7 x64 I am running with a profile that does not have admin rights.

Should I report this bug on the development site?

I think someone already did report this: Bug 545650 – Downloading (large) files to network drive on Windows 7 results in corrupted files.

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