This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

ابحث في الدعم

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox download manager reacts unexpectedly.

  • 3 ردود
  • 2 have this problem
  • 17 views
  • آخر ردّ كتبه hameerabbasi

more options

I'm unable to properly download files using the default Firefox download manager. The relevant extensions are:

 1. Download Status
 2. Download Statusbar
 3. DownThemAll (although since this doesn't interfere with the default, I don't see what this might have to do. Included for completeness).

Now to the problem: Firefox shows weird behaviour whenever downloading a file:

 1. The download completes, and it keeps scanning the file with an antivirus for indefinite periods (it never ended so far) even with tiny text files.
 2. During this period of antivirus checking, if I download another file, the old one gets magically deleted.

I'll disable relevant add-ons, and post back the results.

I'm unable to properly download files using the default Firefox download manager. The relevant extensions are: 1. Download Status 2. Download Statusbar 3. DownThemAll (although since this doesn't interfere with the default, I don't see what this might have to do. Included for completeness). Now to the problem: Firefox shows weird behaviour whenever downloading a file: 1. The download completes, and it keeps scanning the file with an antivirus for indefinite periods (it never ended so far) even with tiny text files. 2. During this period of antivirus checking, if I download another file, the old one gets magically deleted. I'll disable relevant add-ons, and post back the results.

الحل المُختار

See "Disable virus scanning in Firefox preferences - Windows"

Try to set this pref to false on the about:config page.

  • browser.download.manager.scanWhenDone
Read this answer in context 👍 0

All Replies (3)

more options

Update: I just disabled all add-ons. The problem persists. In addition:

 1. In the download statusbar, it shows scanning, but the download disappears from the download window, so download history isn't kept. I've verified the settings, there isn't anything that says that it shouldn't save download history.
 2. Completed downloads vanish off the list, so download history is useless.
 3. When the scanning appears in the statusbar, and I start another download, one of the two is kept in the download list, cannot remember which.
more options

الحل المُختار

See "Disable virus scanning in Firefox preferences - Windows"

Try to set this pref to false on the about:config page.

  • browser.download.manager.scanWhenDone
more options

Fortunately, I didn't need to disable that. All the priblems were fixed by deleting download.sqlite in the profiles folder, as described in the first link you gave me. It was essentially useless by now, and not really a loss.