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.

Search Support

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

how to stop blocking files downloaded by firefox automatically not manualy after download finished ?

  • 5 replies
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

more options

how to stop blocking files that were downloaded by Firefox, automatically not manually after downloads finished ?

how to stop blocking files that were downloaded by Firefox, automatically not manually after downloads finished ?

Chosen solution

Try changing the above setting from true to false.

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the filter box, type or paste scan and pause while the list is filtered

(3) Double-click browser.download.manager.scanWhenDone to toggle its value.

Firefox now should ignore Windows' download security. Does it change how Windows handles the file?

Read this answer in context 👍 1

All Replies (5)

more options

What do you mean by unblocking manually?

On Windows, the following preference both submits the file to your antivirus software and enforces your Windows (IE Internet Zone) download settings:

browser.download.manager.scanWhenDone - MozillaZine Knowledge Base

more options

unblock manually (right click - file properties - unblock)

I download file using Firefox ,then I send URL at server to other people to download it using HTTP ,and because the file mark as block they have error that file not exciting , after i remove blocking manually it works.

more options

Chosen Solution

Try changing the above setting from true to false.

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the filter box, type or paste scan and pause while the list is filtered

(3) Double-click browser.download.manager.scanWhenDone to toggle its value.

Firefox now should ignore Windows' download security. Does it change how Windows handles the file?

more options

thanks the problem solved

more options

That is about adding adding alternate stream data to indicate that the file was downloaded via internet.

See comment 3 in this bug report:

  • bug 499448 - Zone.Identifier information saved on downloads regardless of policy settings
  • bug 426544 - Disable browser.download.manager.alertOnEXEOpen and set internet zone bit on all downloaded files

(please do not comment in bug reports)