Internet Problems

I am new to the site and found this on a question that I googled.
Here's the question: I am able to connect to the internet via interne
explorer but unable to connect through any other browser or program tha
requires or is able to connect to the net why is that

I remeber all of a sudden after I updated my itunes I couldn't connec
to my account but then all of a sudden an update came for Firefox and
wasn't able to connect with that one as well so out of curiousity
checked random stuff such as AIM and Win Media Player and nothing.
even tried to connect to AIM on Explorer and nothing

I did cut everything off firewalls and such and nothing I checked m
connection settings for firefox just to see if I could at least ge
backon with that and nothing. I even tried to mirror the settings o
Explorer to Firefox and nothing.

I would definitely appreciate any help at this point not that
wouldn't any other time but right now it's sort of frustrating because
love Firefox and I've got some Itunes cards from Christmas I'm anxiou
to use

Thanks to everyone in advance

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pastoralfredd