Port 80 question [Solved]

After previously struggling with the PUM.bad.proxy virus I've become very paranoid. After updating Java on both my computers, I noticed the port box in lan settings being filled with the number 80. The address box is empty and I am not being forced to use any proxy. I've researched a bit and port 80 looks safe but I didn't have it in the LAN setting window prior to updating Java. So my question is, Is port 80 safe or is this a virus?

Thank you.

Port 80 is HTTP, so it is safe. Blocking this port will cut any HTTP traffic, like browsing web pages, downloading most files, etc…

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