When I log into Yahoo Mail Beta I can't open my Mail. I can't open new mail or folders and I can't compose a new Email. I also can't get Yahoo Help......while I am using Firefox. If I log into Yahoo Mail Beta using Internet Explorer it works perfectly. This problem is also on my other computers. I have reported the problem to Yahoo and they have taken note of it but they say that Yahoo Mail Beta works for other users who use Firefox 4 and they told me to report the problem to yourselves as they think the problem lies with my settings for Firefox........I don't know what settings if any I have changed..........so I don't know what they are talking about. Can you help me resolve this problem? I am using Firefox 4