303905 - Unknown file type dialogue box should report the MIME type

Status: RESOLVED DUPLICATE of bug 335171

(Firefox :: File Handling, defect)

Description

[Ed Avis]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4) Gecko/20050807 Firefox/1.0+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4) Gecko/20050807 Firefox/1.0+

When a MIME type sent by the server isn't recognized, Firefox (Deer Park
nightly) brings up a prompt asking what to do with this file.  It tries to
report the type of the file:

You have chosen to download: <filename>
which is a: <file type>

However, the file type after 'which is a:' is just taken from the last part of
the filename, which isn't very helpful.  For example if the server reports a
MIME type of application/foo and the URI ends in .1, then Firefox reports 'which
is a: 1 file'.  It should instead say, 'which is of type: application/foo'. 
Displaying the file extension would be a useful last resort if the MIME type is
unknown or something generic like application/octet-stream.

I think there are other bug reports which could be filed around the area of MIME
types and file extensions, but I have logged this bug for one specific issue.

Reproducible: Always

Steps to Reproduce:
1. Visit the URI above in Firefox.

Actual Results:  
I am asked what to do with this file, 'which is a: 1 file'.

Expected Results:  
It should say that this is 'a file of type application/foo' or something a bit
more informative than just the last bit of the filename, which I already know.

Comment 1

[Peter van der Woude [:Peter6]]

Sounds very usefull indeed.

Similar to Seamonkey Bug 157188

I'm not sure if this should be component filehandling or downloadmanager

Comment 2

[Philip Withnall (unavailable)]

Duping to the more recent bug #335171 because there's more information and a better testcase there.

*** This bug has been marked as a duplicate of 335171 ***