I have been happily running Mozilla Firefox for the last few months in my desktop computer... Recently, my company's computer department have made some changes in the configuration of their servers, IPs and similar stuff, with the result that Firefox is now refusing all my attemps to reach any web site. The LAN settings for MS IExplorer are exactly the same as those for Firefox, at least in my computer configuration. But the folks from the computer department won't give any support to any web browsers other than IE, so they refuse to fix my Firefox

So here I am in the midst of my desperation and crying for help. Is there anything I could do about it?