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2.6 Initialize the connection to a file share.2.5 Check for other applications using the profile.2.3 Check the profile folder name and location.Note: Starting in Firefox 34 on Windows (Vista and above), the "Firefox is already running" dialog includes a "Close Firefox" button (shown here) that, when clicked, will dismiss the dialog, end the Firefox process(es) and, after a few seconds, will automatically restart Firefox. The old Firefox process must be closed to open a new window. Firefox is already running, but is not responding.To open a new window, you must first close the existing Firefox process, or restart your system. The running copy of Firefox will quit in order to open this one.

