I cannot download MP4 video from YouTube in FireFox browser
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Your Browser Does Not Support MP4 Videos: 3 Ways to Fix It
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How Can You Fix Videos Not Playing in Firefox
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How to Play Mp4 on Firefox in Ubuntu 22.04
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Does Firefox not support mp4 video on websites? | Firefox Support Forum | Mozilla Support
MP4 files won't work in Firefox | Firefox Support Forum | Mozilla Support
MP4 files won't work in Firefox | Firefox Support Forum | Mozilla Support
Your Browser Does Not Support MP4 Videos: 3 Ways to Fix It
Your Browser Does Not Support MP4 Videos: 3 Ways to Fix It
