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Downloads frequently not completing.

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Frequently my downloads are not actually finishing, even though Firefox says they are done. For example I download a 250 MB file, then I check on it later and it says the file is 75 MB and completed. Needless to say the files are incomplete and archives do not even open.

https://support.mozilla.org/en-US/questions/966009?esab=a&as=aaq I saw that thread and nothing there helped me. Would using a third party download manager like DownThemAll work better?

Frequently my downloads are not actually finishing, even though Firefox says they are done. For example I download a 250 MB file, then I check on it later and it says the file is 75 MB and completed. Needless to say the files are incomplete and archives do not even open. https://support.mozilla.org/en-US/questions/966009?esab=a&as=aaq I saw that thread and nothing there helped me. Would using a third party download manager like DownThemAll work better?

All Replies (2)

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If downloads hang at the last minute or dont complete (just before reaching 100%), the cause might be antivirus software which tries to scan the file and during that process hangs the Firefox instance.

In order to fix the problem, try disabling the scanning as follows:

  1. In the Location bar, type about:config and press Enter. The about:config "This might void your warranty!" warning page may appear.
  2. Click I'll be careful, I promise!, to continue to the about:config page. A list of settings should appear
  3. Filter the list by typing in the search bar at the top. Type in scanWhenDone. You should now find the "browser.download.scanWhenDone" preference.
  4. Double-click on that preference to set the value to false.
  5. Next, try to download something and see if it still has issues.

Please reply and tell us whether this helped you!

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I do not use any anti virus software.