How to change proxy for only one website?

I am traveling to the UK and I would like to still be able to use me netflix account. In order to do this I need to use a U.S. based proxy but I want to use UK proxies for the rest of my web surfing. I know there are firefox add-ons that allow you to do this (foxy proxy) but that is too advanced for me. Is there an easier way configure firefox to use a US proxy for only that website?
Using mac and firefox…
Thanks

Hi,

Here are some brand new proxy sites list which will solve your problem. They will hide your personal information & let you browse those pages you wanted. These are absolutely free too. These sites are Brand new free Proxy sites for Myspace, FaceBook , Youtube, Bebo Friendster & others.

http://loungoc.com
http://loutrungnam.com
http://louphupho.com
http://loulanphuong.com
http://louhuyentrang.com
http://louthuyphuong.com
http://louongtruong.com
http://loukhuongbo.com
http://loungocha.com
http://loumaihoa.com

Cornflake 101: Make Firefox MUCH Faster – For Mac and PC