"image of your prefs-app screen"
Here is mine:
I have adjusted all of those to the always ask setting, but it never asks. pdf's are, other than opening a blank tab, ignored.
And in about:config (search pdf) I found this: (I hope these work, they do work here FWIW.)
But cleaning that out made no difference. When passed a link like
There is a single exchange with the dns server caught by tcpdump, acquiring the IP address of the link, then nothing further. I can whois the address ok, and I can traceroute the FQDN, but the site apparently has no ping server, no response.
What else might I check?
Thanks & Cheers, Gene.