this application contains 2 folders each of them contains webconfig files and iam using .net2005 the error shows when it runs in mozilla

I have searched and found that if you have multiple web.config file then remove the authentication, sessionstate etc from your sub directory web.config file. You can only set authorization and appsettings in sub directory web.config file. Also set CustomErrors to Off in sub directory web.config file.

this application contains 2 folders each of them contains webconfig files and iam using .net2005 the error shows when it runs in mozilla