According to distrowatch
and the fedora release notes, f8 comes with firefox. However, I see you are using KDE instead of the default Gnome. Which fedora image did you use?
Getting access to repositories is still important, whether firefox is installed or not.
I am connected to a router, which connects to my DSL modem. OH,and I'm using Konqueror to browse this page.
OK - is your router configured to act as a proxy?
It's possible you just need to configure yum properly. Here's how:
Make sure install DVD in in the drive.
Open a terminal.
$ su -
(enter password. Note. that "-" at the end is important.)
# yum -y install yum-priorities
(make sure DVD is in drive - I think
f8 will use the dvd as a repo.)
# nano /etc/yum/pluginconf.d/priorities.conf
(this opens the config file in a text editor)
Make the file look like this:
enabled = 1
check_obsoletes = 1
And then save the file and close it.
# rpm -Uvh http://www.fedorafaq.org/f8/yum http://rpm.livna.org/livna-release-8.rpm
(This installs a pre-built configuration file written by Max Kanat-Alexander which is very useful to newbies.)
# yum update
(updates all installed packages, a good idea but watch your bandwidth.)
As you are very new, here is some suggested reading: