Edward,
> How do I tell Firefox to print a web page without the header and footer it
> adds to the page ?
In my version of FF (v52) I can change such things under toolbar ->
"file" -> "page setup" -> (tab) "Margins & Header/Footer".
If you can't find that you could also go into "about:config", type
"printer." in the search box and see what you get. In my case I see a
number of entries ending with ".print_footerxxxx" and ".print_headerxxxx" (a
set for each installed printer), containing stuff like "&PT", "&D", "&T" and
"&U". I could imagine that when you remove those that the accociated
position on the printed page will empty too.
Don't forget to write down whats in there somewhere first though (so you can
restore it when needed). :-)
Regards,
Rudy Wieser