Within the past week I have recently started having a problem where I can no longer drag and drop images, documents, files, etc from my computer directly onto the browser screen when using Outlook through a Mozilla Firefox browser. When I try to attach anything my cursor will turn into a red circle with a slash through it letting me know that I am not allowed to drag and drop. I have cleared the cache/ cookies, I have refreshed my Mozilla Firefox installation, and I have reinstalled my Mozilla Firefox software. I have tried dragging and dropping using other browsers like Microsoft Edge and Google Chrome with no issues. The issue seems to be specific to Mozilla Firefox. Right before this problem occurred, my Firefox session crashed and I had to restart it. Once it was restarted this problem showed up. I have been reading through support forums on here and on Microsoft's website to see if anyone has had a similar issue, but I can't really find anything that is working for me. If anyone has a fix for this it would be greatly appreciated.