SOLDIERX.COM Nobody Can Stop Information Insemination

Hi all

I am new to this so that is why i am asking.

I wanted to know if it is possible the following.
Sniffer that can sniff whatever is on the web browser, somehow. And afterwards to decrypt all that info somehow.

Also, is there specific sniffer that can sniff on specific remote IP, which dont have access to.

I am asking this, in order to find the following if it is possible, maybe i dont need sniffer.

There is web based chat, so i want to find the specific ip of a user that is on that chat, so i can check the real location of the user.

Hoping to get some answers soon.

Thanks.