I can open Yahoo Mail in Chrome, IE but not on Firefox on my main computer. I can open up Yahoo Mail on every other computer I have no matter what browser I use. It is just the one computer that has an issue with Yahoo Mail. Everything else works great. This is what is causing it. Any ideas on how to fix it? description: could not process your request for the document because it would cause an HTTP proxy cycle. Please check the URL and your browser's proxy settings. Does anyone have any ideas?