I'm running Windows 8.1 with Google Chrome. I have an extension that keeps reappearing in the Chrome extension list as "MFAC." It is not the legitimate extension. When I open Chrome, it sits at a screen that says "processing" in the bottom left corner for a few minutes and during this time if I look at my extensions list I see "MFAC" listed. If I wait a few minutes, the screen flashes, everything loads and then if I check the extension list the "MFAC" plugin is gone. If I look for the extension in the Chrome extension folder or in registry, it does not show up there. I've tried recreating a new profile for Chrome and removing the extensions folder in registry with no luck. I've checked for viruses and malware as well, with nothing showing up. What else can I try?