Specified "type" attribute of "video/mp4" is not supported
html, html5-video, mediaelement.js, video, webm
Solution
MP4 type isn't supported on Firefox! It's only supported in Safari 3.0+, Google Chrome 5.0+ and IE 9.0+! For Firefox you'll need .ogg file or .webm video files as sources! Here is an image containing all supported video formats in HTML 5:
And for audio support see this pic:
UPDATE:
Firefox now supports MP4 H.264 (AAC or MP3) https://developer.mozilla.org/en-US/docs/Web/HTML/Supported_media_formats
Note: MP4s encoded with a high profile will not run on lower end hardware, such as low end Firefox OS phones.
Problem
I am using mediaelement js.. on my .htacces I have these.. ``` AddType video/mp4 mp4 m4v AddType audio/mp4 m4a AddType video/ogg ogv AddType audio/ogg ogg oga AddType video/webm webm ``` and on my index.html I have this on my `<head>` ``` <script src="/js/jquery.js"></script> <script src="/js/mediaelement-and-player.min.js"></script> <link rel="stylesheet" href="/js/mediaelementplayer.css" /> ``` and the code is ``` <video width="600" height="450" preload="none" autoplay preload="auto" > <!-- MP4 for Safari, IE9, iPhone, iPad, Android, and Windows Phone 7 --> <source type="video/mp4" src="videos/Sequence1.mp4"/> <!-- WebM/VP8 for Firefox4, Opera, and Chrome --> <source type="video/webm" src="videos/Sequence1.webm" /> <!-- Ogg/Vorbis for older Firefox and Opera versions --> <source type="video/ogg" src="videos/Sequence1.ogv" /> <!-- Flash fallback for non-HTML5 browsers without JavaScript --> <object width="320" height="240" type="application/x-shockwave-flash" data="flashmediaelement.swf"> <param name="movie" value="flashmediaelement.swf" /> <param name="flashvars" value="controls=&file=videos/Sequence1.mp4" /> </object> </video> ``` unfortunately.. its not playing on mozilla browser.. it keeps on loading but not playing.. and using the ctrl+shift+k on mozilla.. I found these error. -- [18:47:12.942] Specified "type" attribute of "video/mp4" is not supported. Load of media resource videos/Sequence1.mp4 failed. @ http://thesuperheroblueprint.com/ Please help me.. I really need to fix this so bad.. Here is the website..