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Download problem
I tried to download a 50MB file, firefox shows download completed. But the file is only 200kb. Can firefox make improvement by showing not success if not download completely?
Alla svar (2)
Did you check your security software (firewall, anti-virus)?
It is possible that anti-virus software is corrupting downloaded files or is interfering otherwise. Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.
See also:
Nothing to do with firewall etc. Just when the download is slow or link break during download. This will happen. It's annoying Firefox not show download was incomplete.