In the following code, RadAsyncUpload is not working in mozilla version 3.0.19
<asp:UpdatePanel ID="UpdatePanel3" runat ="server" UpdateMode ="Conditional" ><ContentTemplate > <telerik:RadPanelBar ID="RadPanelBar1" runat="server" ExpandMode ="MultipleExpandedItems" Width ="900px" Skin="Metro" Font-Names ="Arial" Font-Size ="12px" > <Items > <telerik:RadPanelItem Expanded ="False" Text="CALL INFORMATION" Font-Size ="Small" Font-Names="Arial"> <ContentTemplate > <asp:UpdatePanel ID="UpdatePanel5" runat ="server" EnableViewState ="true" UpdateMode ="Conditional" > <ContentTemplate > <telerik:RadAsyncUpload ID="RadAsyncUpload1" runat="server" Font-Names ="Arial" Font-Size ="12px" PostbackTriggers ="btnSave,btnSaveCallInfo" MultipleFileSelection ="Automatic" Width ="300px" AllowedFileExtensions =".jpg,.png,.jpeg,.gif,.bmp,.doc,.docx,.xls,.xlsx,.txt,.pdf" Localization-Select="Browse"> </telerik:RadAsyncUpload> </ContentTemplate> </asp:UpdatePanel> </ContentTemplate> </telerik:RadPanelItem> </Items> </telerik:RadPanelBar></ContentTemplate></asp:UpdatePanel>