Wed, 22 Jul 2009 21:15:10 -0700, /David E. Ross/:
Sometimes, when I select a link to a PDF file, the file appears within
the SeaMonkey window, appearently using the nppdf32.dll plugin. Other
times, the Download Manager is launched; and the file is eventually
displayed within a separate Adobe Reader window.
Why does this lack of consistency occur?
It depends from the reported MIME type and or the
Content-Disposition header, the least. If the reported MIME type is
not appropriate SeaMonkey may fail to identify the response as PDF
therefore allowing you only to download it. If the
Content-Disposition header specifies value of 'attachment' (w/o the
quotes) SeaMonkey will pop a download dialog no matter of the
content type and whether there is plug-in registered to handle it
inside the browser.
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