Tell firefox to use Flash player instead of download for mp4 files - Super User
Open in VLC media player – Get this Extension for 🦊 Firefox (en-US)
How to Deal with Audible MP4 Files and Convert Audible MP4 to MP3
YouTube Video Download - YouTube HD Download – Get this Extension for 🦊 Firefox (en-US)
Easy Youtube Video Downloader Express – Get this Extension for 🦊 Firefox (en-US)
How to Fix Firefox not Playing Videos - Stellar Data Recovery
YouTube Downloader – Get this Extension for Firefox (en-US)
Manage Tabs in Mozilla Firefox in Windows 7 - VisiHow
HLS/MP4/etc Video Playback (Unless of course, Microsoft Windows 10 Media Feature Pack was included) not working or playing or (re)loading (example: Twitter, or et cetera, or other) in Windows 10 Safe Mode :
Road-Test sending video to Chromecast and Roku in Firefox for Android Beta - Future Releases
Is it possible to get the videos I have played from Firefox (e.g. maybe I can save them in a temporary folder)? If so, how? - Quora
Firefox 49 error "This browser does not support video playback" playing mp4 videos in Twitter in Win 8.1 with Flash Player 23.0.0.162 | Forum pomocy dla programu Firefox | Pomoc Mozilli
Free Video Downloader – Get this Extension for 🦊 Firefox (en-US)
Solved Section B - Mozilla Firefox 33:01 ৯ | form design.mp4 | Chegg.com
Video Downloader Pro – Get this Extension for 🦊 Firefox (en-US)
How to Download Online Videos using Firefox Add-ons?
How to prevent Firefox from playing directly linked MP4 files in the browser – /jdrch
Previewing mp4 files instead of saving them to PC. | Firefox Support Forum | Mozilla Support
Easily download Youtube videos as MP4 or FLV with Firefox and a plugin - YouTube
Firefox: VLC Media Player not listed as content type - Microsoft Community
YouTube Download Plus – Get this Extension for 🦊 Firefox (en-US)
Videos won't play in Nightly | Firefox Support Forum | Mozilla Support
Can't get audio when playing mp4 video within Firefox? : r/firefox
Firefox won't play MP4 files | Computer Geekery
Why is it so difficult to get Firefox to play web videos? | Firefox Support Forum | Mozilla Support
Firefox 35.0 launches with new Hello video chat and MP4 playback on Mac - Gear | siliconrepublic.com - Ireland's Technology News Service
How can I make mp4 videos play in Firefox? | Firefox Support Forum | Mozilla Support
