Good evening

I am a stupid person when it comes to mac's. I ordered a kaspersky...soft, that was from the school I go to. And after that and a virus scan, I could no longer use firefox or jabber messenger. I got rid of them and downloaded them again, rebooted my PC thousands times, but nothing is working. I keep getting a message that something needs to be done with my fire wall and HTTP, HTTPS, and FTP ports.

Help someone?

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