Tried googling this first but really didn't know how to phrase it. Anyway often times when I'm typing in Firefox the cursor randomly disappears as if I've clicked another window and I have to click Firefox again for it to be the top window. It's not minimizing and nothing else is popping up in it's place. It's very random. Sometimes it will do it back to back constantly, sometimes it will happen at random intervals a few seconds apart and sometimes it wont happen for hours then start doing it again. The best way I can describe it is if I had a window on my second monitor and someone clicked that window as I was typing this and I had to take and click this window again to be able to type or use Firefox. I've scanned in both regular and safe mode with Malware Bytes, Advanced System Care and Windows Malicious Software Removal tool. None of the scans have found anything. I've also tried closing out of as many programs as I can that are running in the background and that hasn't helped either. It seems to happen most when I'm typing on vBulletin based forums. It happens all the time here and over on Jeepforum.