Oralfloss, this is extremely helpful and I appreciate it! You explained
exactly what I wanted to know. As a result I've been successful in setting
up Mendeley and another non-free browser to use Tor, which is super cool.
Oddly enough, though, the same method doesn't seem to work on QupZilla. This
is not a killer because QupZilla is third on my browser depth chart, but it's
puzzling now that I've made the other programs work. I set the SOCKS 5 proxy
to 127.0.0.1 and the port to 9150 as with the other programs, but it fails.
I also cleared the Exceptions list and tried it that way, but no luck. I'm
attaching a screenshot of what I did in QupZilla just to check that it looks
like you'd expect.
Again, many thanks! My understanding was greatly increased by your concise
explanation. And no worries on QupZilla, it's not important, it's just a
curiosity. What I really wanted to Torify has been Torified.