Facebook audio is delayed in videos. Video is muted, then when unmuted the video does not start right away. Then the sound is seconds off. Tried lots of setting changes with no success. Tried MS Edge and had no issues. This is the second computer that I have had this issue and I had to start using another browser as I could not resolve the issue. But I prefer Firefox. I have a new Apple Mac Mini and my old Mac Mini does not have this issue. Thanks!