Default.aspx

 For some reason today, when I use Firefox to try to open my Hotmail account, I get this "Opening Default.aspx" notice.  If I login to Hotmail, without going through Firefox, I don't get the message.  Have I changed something or did something change in Firefox?  When I log into Hotmail, it does show that address but could something be trying to get me to download malware?  Anyone else notice it?

 

hotmail.JPG