"File Upload - You don't have permission to open this file.  Contact the file owner or administrator to obtain permission."

I'm trying to attach a small Excel file to an email that I want to send through my Outlook.com account.  When I try to do the attachment, I get the error shown above when going through Firefox browser.  I am the file owner and also the administrator.

When using Internet Explorer, I get this error "Internet Explorer - Internet Explorer has stopped working - A problem caused the program to stop working correctly.  Windows will close the program and notigy you if a solution is available. Close program."  Nothing can be done but to Close program, which then restarts going back to the same email that I was trying to make the attachment to.

I am using Windows 8 and have attached countless files to Outlook.com in the past, using my current setup.  This problem just started in the last couple of days.

Any suggestions?