The main point is that I already downloaded the DVD, and firefox is part of what I downloaded. It should be available as an option extra selection when installing from the DVD.
Indeed! -- Verizon FiOS subscriber since 2005 | Mac owner since 1990 | Fedora user since 2006 | CentOS user since 2007 | "Anyone who is unwilling to learn is entitled to absolutely nothing." - graysonf | EDIT: I seldom post without an edit.