today i tried to attach a file on dnb.no it is a banking in Norway, the pop up for the attachment progress would start but the file never gets uploaded. i contacted the dnb customer service, they told me to use another bowers, i used then Microsoft Edge, it worked. why this happens to Firefox, why it didn't work with my Firefox browser? this is the browser i am using since 15 years and never had this problem with it since then.