1139564 - downloaded file blocked and deleted after download

Status: VERIFIED DUPLICATE of bug 1137909

(Firefox :: Downloads Panel, enhancement)

Description

[vey.quentin]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0 Iceweasel/38.0a2
Build ID: 20150227004023

Steps to reproduce:

Download a (quite large) file from uploaded.net with iceweasel 31.5.0


Actual results:

After several hours of download, the download manager marked the file as "Blocked, may contain a virus or a spyware" and the actual file was deleted.


Expected results:

If it was because of a bad reputation of the website/address : the error should have appeared at the beginning of the download, and not after several hours.

If it was because of the result of a scan : give the user the choice delete/quarantine the file (at least on the first appearance of this error).

In any case, having a more verbose error would help a lot the slightly above average user to understand what is happening.

Comment 1

[Matthias Versen [:Matti]]

The story behind this feature: http://monica-at-mozilla.blogspot.de/2014/07/download-files-more-safely-with-firefox.html

Monica: Is this an expected behavior that a downloaded file get only blocked and deleted after they are downloaded ?

Comment 2

[[:mmc] Monica Chew (no longer reading bugmail)]

Yes, because the hash of the full downloaded file is necessary in some cases to perform the malware check. There will be quarantine behavior that comment 0 requests (instead of straight deletion) in https://bugzilla.mozilla.org/show_bug.cgi?id=1137909.

Comment 4

[Matthias Versen [:Matti]]

Thank you Monica for your explanation.