I have an apple mac book pro. I have had an sbcglobal.net account which is a yahoo account. I have Firefox 13.0.1. The last month...everytime I try to log into my sbc...e-mail my computer freezes. Talked to our IT guy at the office...suggested I use another browser...I have been using Safari...as even opening up various pages, they freeze and I restart...and I get this message this is embarrassing...we can't seem...whatever it says...Also I subscribe to WSJ and I no longer can e-mail their articles...when I called them they asked if I used firefox. They said with your last update which was quite large they have had lots of clients with the same problem