I have
<%= stylesheet_link_tag ‘print’, :media => :print %>
which seems to generate the same link as you have and it works fine in FF 3.0.10
Have you tried temporarily removing your standard stylesheet and replacing it with a renamed version of print.css to make sure it is not a problem with the contents?
Thanks, colin, i figured it out. The problem was that the main
stylesheet, style.css was also being used for printing, so i needed to
change the link for the main stylesheet to have media="screen, print".
So, it was nothing to do with the link to print.css at all.