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no sound when play video
don't know why when watch videos such as show case .... etc
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That answer only applies to Desktop Firefox. This is a Firefox for Android question.
When the video has focus the sound can be adjusted but if you tap outside the video or pan the screen the focus is removed from the video.
Android has several sound levels. The guaranteed way to change the sound level is to use the Android settings.
- Open the Android Settings
- Tap Sound
- Tap Volumes
- Adjust the Music, video games, & other media volume