261156 - attachment content-type detection relies only on MIME Content-Type field

Status: RESOLVED DUPLICATE of bug 108186

(Thunderbird :: General, defect)

Description

[Noam Tamim]

User-Agent:       Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)
Build Identifier: version 0.8 (20040913)

We've got here messages with PDF attachments. The MIME Content-Type field marks 
the PDFs as application/octet-stream instead of application/pdf (these messages 
are machine generated). But the attachments DO have a PDF extension.
Thunderbird ignores the extension, and (partly) treats the file as of unknown 
type:
1. It is not possible to save the default (double-click) action for those file 
(I want to always open them with acrobat reader).
2. They have no acrobat icon.
3. Here comes the "partly" type - because Windows uses extensions for managing 
associations, the default open application is correct - acrobat reader. But 
the "do this automatically.." checkbox is disabled.

Reproducible: Always
Steps to Reproduce:
1.
2.
3.

Comment 1

[Noam Tamim]

Just wanted to add, that after using the "do this automatically.." checkbox for 
an attachment that was marked correctly, it is now the default action.

Comment 2

[Mike Cowperthwaite]

Note that duplicate has been resolved WontFix -- this change will not be made.

*** This bug has been marked as a duplicate of 108186 ***