macOS froze completely while youtube videos were playing

October 14, 2021 at 02:11

Hi,



I'm concerned about the security of my iMac. I left it playing a youtube video and somehow it segued to playing other youtube videos even though I block autoplay of videos and audio. Well, when I tried to stop the video or close the Firefox browser then everything was frozen and when I tried to open other MacOS applications such as Activity Monitor to kill Firefox then everything on my Mac was frozen too!



So quickly I pulled plug to my router but that didn't help so I was forced to restart the computer!



I scanned for malware and viruses using Malwarebytes and ClamXAV though found nothing.



The only thing that I could find that might describe this phenomenon was a post from several years ago that Firefox's hardware acceleration might be responsible.



However, I don't see that setting in Firefox.



My macOS and Firefox and everything else are updated fully.



Can someone explain this? Thank you!

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