I was receiving email from an internet service which is a pgp / gpg encrypted email and I’m using gmail. Waw, this is a trouble to me. Looking around the gmail’s setting page and found no information about this. I thing gmail is not supporting it right now. Google guys, please implement it ASAP!!!.
Back to the problem, I’m searching the net for solution and found an extension called fireGPG. Install it, restart, open the message, block the encrypted part and open fireGPG. Voila, now I can see the message.