I'm having a problem with the Firefox address bar that is driving me crazy. When I used to type a word into the address bar (e.g., espn), the search bar would either open espn.com, or a google search for espn if the domain guessing didn't work. Now, I just get a page labeled "Failed to open page" that says "The host does not exist." I've checked all the relevant about:config options, and all those seem to be set correctly. The problem is still there in Safe Mode, too. I've uninstalled and reinstalled several times (using AppDelete), which doesn't change anything. I don't know what else to try at this point. Does anyone know what the problem is? Any help would be greatly appreciated.