I could also attach my DxDiag.txt report, but I don't see any option here for attachments. F1398665248_] - Firefox 42.0 Crash Report - Report ID: F1398665248_] - Firefox 42.0 Crash Report - Report ID: F1398665248_] - Firefox 42.0 Crash Report - Report ID: hang | WaitForMultipleObjectsEx | MsgWaitForMultipleObjectsEx | MsgWaitForMultipleObjects | F_115. Here you can see my latest Crash Reports from Firefox: I've recently upgraded to Windows 10, I use Firefox 42.0 with the latest Flash Plugin 20.0.0.235. I do not use browser games, I was visiting this site: I was thinking about killing the process, but then I saw a dialog on Firefox, that allowed me to stop the Plugin execution. I opened Windows Task Manager, and the Flash Plugin was using 1.8 Gb of RAM. It just happened: shortly after starting the browser, I noticed that it was extremely slow and unresponsive. I think I have the same problem, the Flash Plugin hangs alot of times on Firefox (but only after the latest Plugin update, version 20.0.0.235).

Latest firefox flash plugin