Why do downloads stall at 99%?

[ratchet]

Numerous times downloads will sale to 99% then stall for several minutes. This before Ff invokes anti-virus scan or Sandboxie prompts for recovery. It's not all downloads, just some. Is this Firefox or the download site or my ISP or Sandboxie?

[ronjor]

Firefox works with your antivirus program to scan downloads.

You can disable this behavior in Firefox and see if it helps.

Type about:config in the url location bar, enter "browser.download.manager.scanWhenDone" without the quotes and double click the entry to change it from true to false.

[HAN]

When I read this, I thought that you might be running NOD32. And looking at your signature, I'm right. When NOD32 version 3 or 4 scans larger downloads, it can take quite a while. Depending on the type of file and the speed of the PC, it can seem like forever sometimes (of course it's not. ;) ) Version 2 suffered a little from this but it wasn't nearly as noticeable as the newer versions.

[ratchet]

-{ Quote: "When I read this, I thought that you might be running NOD32. And looking at your signature, I'm right. When NOD32 version 3 or 4 scans larger downloads, it can take quite a while. Depending on the type of file and the speed of the PC, it can seem like forever sometimes (of course it's not. ;) ) Version 2 suffered a little from this but it wasn't nearly as noticeable as the newer versions." }-
I see, the Ff scan box must just show the last few seconds of the scan. Thank you HAN!

[ratchet]

-{ Quote: "Firefox works with your antivirus program to scan downloads.

You can disable this behavior in Firefox and see if it helps.

Type about:config in the url location bar, enter "browser.download.manager.scanWhenDone" without the quotes and double click the entry to change it from true to false." }-
So I've turned it off for a while. Thanks ronjor!