Does ASPNET account has the write permission to this folder (CuteEditortemppath)?
Does the problem happen to IE or only Firefox?
1. Create a folder under and name it "CuteEditorTemp".
2. Open your web.config and add the following entry:
<add key="CuteEditorTempPath" value="~/CuteEditorTemp" />
asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx