firefox’s PDF viewer is quite nice—particularly so if you consider
me was the size of the sidebar.
in my day job i tend to both read and write a number of architecture
and specification documents, all of them sooner or later as
PDFs. those PDF documents tend to have a rather deep structure—too
deep to really fit into the sidebar of firefox’s PDF viewer. once i
also realized that i was dealing with an open webapp. so, it
should be possible to add a piece of greasemonkey script to firefox
to pump the sidebar—how hard could it be?
“not very” is the answer, as you can see for yourself here: