why will fire fox not work?
 

I have just installed unbantu linux on a hp laptop.
the trial version worked perfectly, could conect to the internet and run all programmes. Installed the full version and every thing works except fire fox, all setting seem to be ok but i get the con not find server message
HELP!!!
what has gone wrong

When you say everything works---are there other programs---eg e-mail---that will connect correctly?

During installation, do you remember choosing your internet connection preferences?

If nothing will connect, then go to the network settings menu and review the setup---also, open a terminal and enter: "sudo ifconfig"--post the results here.

Also try to ping a site like Google ( "ping www.google.com" ). If nothing happens, ping the raw IP address ( "ping 74.125.19.104" ). This tells you if there is a DNS issue.

fire fox failure
 

Anything that require the internet will not work.
from system, network settings the connection is eth0 and is active (network card) under properties for this I get:
configuration DHCP
ip address (nothing here)
subnet mask (nothing here)
gateway address (nothing here)

I am trying to connect to a Buffalo wireless/cable router with a cable, two other 'windows' machines already connected and running.

Very new to Linux....how do I open a terminal to run the ipconfig?

Terminal open: click the Applications menu on the top of the screen (left side), there open Terminal from the System tools menu (or equivalent..I've not used english version for a while). It's the icon that looks like a black tv screen.

ifconfig needs to be run with root privileges, so in Ubuntu you use sudo to achieve that (because root account itself is, by default, locked for security reasons and should remain so); in addition ifconfig is under /sbin/ directory if I'm right, and that directory is not added to the regular user's $PATH environment variable by default (again, if I'm right)..so you need to type in the full path to the executable for your shell to find it, the plain executable name might not work (usually it's all you need). So it works like this
then it asks for your user password (except on the live-cd, where it won't ask any), the one with which you logged in. After typing it (nothing is displayed on the screen, but it is working nevertheless - just type carefully), ifconfig is run with root privileges and you should see the devices that are set up (at least 'lo', usually 'eth0' and maybe 'eth1' or 'wlan0').

You can try to fetch everything needed for your ethernet card (which is usually called 'eth0') via DHCP in Ubuntu like this:
some distributions use 'dhcpcd' instead of 'dhclient', but the above should work for you. See what it does. If it does not create any output (after the command you just get a "new command line"), it worked - if you get output, something went wrong.