[USN-2185-1] Firefox vulnerabilities

[Benjamin Kaduk]

Hi Jim,

On Fri, 2 May 2014, Jim Byrnes wrote:

> On 05/02/2014 07:00 PM, Benjamin Kaduk wrote:
>> Hi Chris,
>> 
>> I can't seem to find any substantial amount of complaining (or really,
>> any traffic at all) about this on the forums, bug tracker, or mailing
>> lists, which is very confusing to me, but this firefox update appears to
>> have broken printing PDFs from the in-browser pdf.js viewer.  Most of
>> our systems here are running the 12.04 LTS (precise), but I think I
>> could reproduce the failure on 14.04 (trusty) as well.  Even a simple
>> "print to file" is sufficient to display the failure; the output is
>> entirely blank. (We see a lot of blank pages in the output trays of the
>> printers in our computer labs.)
>> 
>> I filed https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1315020
>> for tracking in Ubuntu, but the real action appears to be on the mozilla
>> bug, https://bugzilla.mozilla.org/show_bug.cgi?id=1003707 .
>> 
>> Has anyone seen reports like this?
>
> I am running 12.04 and Firefox just upgraded to FF 29.  I have been able to 
> print pdf's from FF with no problems.  If it makes a difference I am printing 
> to a Samsung CLX-3160FN networked printer and and old HP Laserjet on a print 
> server.

Thanks for the extra data.  If only some systems are affected, that might 
explain why there has not been more traffic already.

Can you please confirm that you are in fact using pdfjs to view PDFs 
in-browser (i.e., there is not some other plugin such as the adobe viewer 
that is being used)?  The value of pdfjs.disabled from about:config would 
also be useful. I'm slightly tempted to ask for a screenshot of a PDF 
being viewed in-browser to be linked to, but that's probably overkill.

> I did notice that if you have multiple tabs open and try to print, the print 
> preview takes over the whole FF window and you cannot access your other 
> opened tabs until you close print preview.  I had a quick look in 
> about:config and there is a setting for printing from print preview, but I 
> have not had a chance to experiment with it.

I would be inclined to treat that as a separate issue.  Perhaps you can 
file a bug?

Thanks again,

Ben