Since January 7th I have been unable to receive or send emails using Windows Live Mail.  I upgraded to Windows 10 in November and have had no problems until now.  An Earthlink tech spent hours remotely checking my PC and concluded that the problem is with Windows.  A Microsoft online tech person claimed the problem is with Earthlink.  Meanwhile I am caught in the middle with no email service except the awkward Webmail.  Could this be a compatibility problem between my Firefox browser and Windows?