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On starting up firefox i am getting an error message from javascript application telling me that my username is an invalid username/password combination.If i continue to get this error message,try entering my email address as my username.

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Hi,on starting firefox which i have used solely as my browser for years i am now getting an error message from java script application that shows my username followed by a message saying; 'username'-Invalid username/password combination.If you keep getting this error,try entering your email address as your username'. I then press the OK button within that error message box and it dissapears and everything seems ok although hover my cursor over the mail(envelope) icon and it says not connected. I only started having this problem since downloading firefox 4.It also does not tell me where this problem is occuring so i do not know where to log on with this information.I would be most grateful for any help with this matter.Many thanks.

Hi,on starting firefox which i have used solely as my browser for years i am now getting an error message from java script application that shows my username followed by a message saying; 'username'-Invalid username/password combination.If you keep getting this error,try entering your email address as your username'. I then press the OK button within that error message box and it dissapears and everything seems ok although hover my cursor over the mail(envelope) icon and it says not connected. I only started having this problem since downloading firefox 4.It also does not tell me where this problem is occuring so i do not know where to log on with this information.I would be most grateful for any help with this matter.Many thanks.

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Take a look in the Error Console for details about that.

Tools > Error Console
Right-click the message and use Copy to get that complete message.