My husband and I each have our own email account on Comcast email. We almost always use Firefox to open it. Suddenly, I cannot sign out of my email account on Firefox. I click on sign-out, then click on sign in, but the email automatically goes to my email account. After signing out, and clicking on email, it sometimes says "oh oh, you're not signed in." But when I click on sign in, instead of giving me the sign in box it goes right to my open email account. Just can't get out of it. When I am on IE, I can still sign in and out of both Comcast accounts without a problem. I use a laptop with Windows 7 or 7XP I believe, not sure which it is. Thanks for your help.