Hello Pino,
I understand the inconvenience.
Yes, AVG Internet Security/Antivirus is capable of removing all known variants of threats.
From your contact history, I could see the screenshot of "traffic media" provided but I am unable to identify the exact issue as everything seems to be normal.
Could you specify the exact concern regarding "Traffic Media" on Firefox?
Provide the (screenshot) of "odd pachets" going out from host service which will help us to assist further.
You can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions.