Shortly after the last FF upgrade, (55.0.2), I started getting a BSOD when using webcam. The screen just went black after a few minutes and displayed no error messages. My research took me to open hardware monitor which i downloaded. Everything worked just fine until I activated a webcam (either outgoing or incoming). That's when I could see the GPU temperature steadily climb until somewhere around 220 degreesF and suddenly there was the BSOD. If I stopped the webcam before I reached that temperatutre level, I could the temperature get lower. Using all the same stuff, I never had a problem until around the time of the last update. I cleaned up around the fans but they really were not that dusty. I was thinking about replacing the graphics card, but first tried running on Microsoft Edge. Absolutely no problems. Temperatures remained low, fan speed stayed low (fan got up to 100% as it heated up when using FF). and could use he webcams for an hour with no BSOD, minimal rise in GPU and minimal fan speed. Granted, my computer technical knowledge is limited, but I can interpret the obvious conclusion that my computer is not at fault since GPU overheating and the resulting BSOD only happens when using webcams with FF and everything works perfectly when using MS EDGE. I have no problem playing videos, just with livestreaming webcams. Any enlightened comments or suggestions would be appreciated.