I have a PC with 2 monitors, so sometimes I get to work on one monitor while I keep the second one with a video, a news site, or whatever... I have noticed that when I open FireFox on Monitor One, and drag out a Tab to create a second FireFox Window and then a site on Monitor One ask me to drag and drop something, FireFox Crashes... at first sight I was on the believe that it was random, but with the last update I notice that when I drag something from my desktop to the FireFox Window 1, instead of the picture of file, it appears a shadow of the FireFox Window on Monitor 2... I hope a I'm being clear, but if not... let me tell you how this happens this at daily... "On Monitor One I open Firefox, open WhatsApp, a client send me a link to a video, I open Link in a tab, drag out the tab to create a separated Firefox Window and move it to Monitor 2 to keep the chat whit client on WhatsApp while video keeps running on monitor 2, I see something and take a screenshot and save it (on desktop, images, documents any place), take the file and drag it to Whatsapp, but instead of the file it looks like im dragging back the tab i previously drag out, and then FireFox crashes..." So FireFox Crashes several times a day, I don't know if there is a way to fix this problem, or if this is a major issue (and if it is, i'd like to you let me know how to report the bug)