We use the Express Checkout for Digital Goods api in .net npv sdk. I just noticed that when using Firefox as the web browser the return to web site functionality at PayPal is hanging, i.e. the paypal return page just sites there with the spinner spinning and the web site is not brought back. When checking our paypal account I can see the transaction completed. This is confusing to customers as they don't know if the transaction completed and they don't get our download link. Any thoughts?
