Hey Rock4321, unfortunately you've come to the wrong place for help with your problem. This is the place for help with the Mozilla Firefox web browser. If I was you, I'd ask Road Runner for help.

I don't think I made myself clear. I want to discontinue Road Runner and have Mozilla Firefox as my Internet provider, but when I discontinue Road Runner, I am not able to get on the Internet via Mozilla Firefox. Rock

Firefox is a web browser, it doesn't serve as an internet service provider like Road Runner - you need both.

THANK YOU !!!