Firefox does not open .PNG files anymore

[Marcelo Magno T. Sales]

Em Sáb 14 Fev 2009, stan escreveu:
> Marcelo Magno T. Sales wrote:
> > Hi,
> >
> > Since recently, possibly after the upgrade to 3.0.6, Firefox does
> > not open .PNG files anymore. When I click a link which points to a
> > .PNG file, Firefox asks for an external application to open the
> > file instead of opening it directly in Firefox. How do I get the
> > old behavior back?
> >
> > Thanks,
> >
> > Marcelo
>
> I don't think that is due to the upgrade to 3.0.6.  I'm running that
> version on F10 and it shows png files just fine. Maybe it is a
> configuration in about:config?

Well, I didn't touch those, but it's possible.
However, I've searched for "image", "png", and others in about:config, 
but didn't find anything relevant... Anyone knows what about:config 
configuration might be causing that?

Thanks,

Marcelo