mp4 works in IE /FireFox but not in Chrome 49 · Issue #3167 · videojs/video.js · GitHub
Firefox won't play many videos, sounds and other Html5 applications but Youtube is fine. | Firefox Support Forum | Mozilla Support
Video DownloadHelper 7.6.0 - Encountered Some Error
How to Fix Firefox not Playing Videos - Stellar Data Recovery
How can I make mp4 videos play in Firefox? | Firefox Support Forum | Mozilla Support
How Can You Fix Videos Not Playing in Firefox
html - Why won't MP4 video work with HTML5 <video> tag on Firefox - Stack Overflow
html - Why won't MP4 video work with HTML5 <video> tag on Firefox - Stack Overflow
Fix common audio and video issues | Firefox Help
Videos won't play in Nightly | Firefox Support Forum | Mozilla Support
How Do You Solve Firefox Not Playing Videos Issue - MiniTool
Safari 8 fails to play any (mp4) video in-browser - Ask Different
html - Why won't MP4 video work with HTML5 <video> tag on Firefox - Stack Overflow
Fix common audio and video issues | Firefox Help
html - Firefox and Chrome can't play HTML5 mp4 video - Stack Overflow
Video Download (Video Downloadhelper 7.6.0) without audio (Firefox 100.0.2)
Playing Videos in Firefox Ubuntu Issue | Fix Your Browser Can't Play This Video on Linux - YouTube
Firefox 110 won't play embedded .mp4 video using the <video> element : r/ firefox
How Can You Fix Videos Not Playing in Firefox
How to prevent Firefox from playing directly linked MP4 files in the browser – /jdrch
html - Why won't MP4 video work with HTML5 <video> tag on Firefox - Stack Overflow
How to Play Mp4 Files on Windows 10?
html - Video never loads in Firefox but works in chrome - Stack Overflow
user-images.githubusercontent.com - "No video with supported format and MIME type found" error message when accessing the video · Issue #106302 · webcompat/web-bugs · GitHub
How to prevent Firefox from playing directly linked MP4 files in the browser – /jdrch
