Dette websted vil have begrænset funktionalitet, mens vi gennemgår vedligeholdelse for at forbedre din oplevelse. Hvis en artikel ikke løser dit problem, og du vil stille et spørgsmål, har vi vores supportfællesskab, der venter på at hjælpe dig på @FirefoxSupport på Twitter og/r/firefox på Reddit.

Avatar for Username

Søg i Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Læs mere

Denne tråd blev arkiveret. Stil et nyt spørgsmål, hvis du har brug for hjælp.

Does Firefox support .mp4 video?

  • 3 svar
  • 1 har dette problem
  • 383 visninger
  • Seneste svar af WoodyFF

WoodyFF
WoodyFF
more options

On page https://support.mozilla.org/en-US/kb/html5-audio-and-video-firefox?redirectslug=viewing-html5-audio-and-video&redirectlocale=en-US

I find "AAC and H.264/MPEG-4 AVC are patented audio/video compression formats. They can be viewed in Firefox using built-in OS libraries (so neither Mozilla nor you need to pay a fee) if embedded in the MP4 container format (.mp4, .m4a, .m4p, .m4b, .m4r, .m4v file types)."

But when I create an HTML page with the following HTML5 code: 

<!DOCTYPE html>
<html>
<body>
</body>
This is a test of video.
<video src="C:/MyVideoFile.mp4" controls>
</video>
</html>

I get the error "No video with supported format and MIME type found". Does Firefox in fact support .mp4 video? If so, what changes do I need to make in the HTML?

On page https://support.mozilla.org/en-US/kb/html5-audio-and-video-firefox?redirectslug=viewing-html5-audio-and-video&redirectlocale=en-US I find "AAC and H.264/MPEG-4 AVC are patented audio/video compression formats. They can be viewed in Firefox using built-in OS libraries (so neither Mozilla nor you need to pay a fee) if embedded in the MP4 container format (.mp4, .m4a, .m4p, .m4b, .m4r, .m4v file types)." But when I create an HTML page with the following HTML5 code: <pre><nowiki><!DOCTYPE html> <html> <body> </body> This is a test of video. <video src="C:/MyVideoFile.mp4" controls> </video> </html></nowiki></pre> I get the error "No video with supported format and MIME type found". Does Firefox in fact support .mp4 video? If so, what changes do I need to make in the HTML?

Ændret af cor-el den

Valgt løsning

After further experimentation, the error is due to the path in src. It should be either 

<video src="file://C:/MyVideoFile.mp4" controls>

OR 

<video src="MyVideoFile.mp4" controls>

if the .mp4 is in the same directory as the HTML file (other relative paths are possible)
Læs dette svar i sammenhæng 👍 0

Alle svar (3)

WoodyFF
WoodyFF Spørgsmålsstiller
more options

EDIT: The sample HTML I included got rendered (and there is no such file as MyVideo.mp4). Here it is again, replacing angle brackets with square brackets for visibility: [!DOCTYPE html] [html] [body] /body This is a test of video. [video src="C:/MyVideoFile.mp4" controls] /video /html

FredMcD
FredMcD
more options

See if this helps: Separate Security Issue: Update your Flash Player or remove it using these links; Uninstall Flash Player | Windows {web link} Uninstall Flash Player | Mac {web link}

Note: Windows users should download the ActiveX for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX.

Flash Player Version: 32.0.0.344

https://get.adobe.com/flashpl.183ayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> +++++++++++++++++++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

WoodyFF
WoodyFF Spørgsmålsstiller
more options

Valgt løsning

After further experimentation, the error is due to the path in src. It should be either 

<video src="file://C:/MyVideoFile.mp4" controls>

OR 

<video src="MyVideoFile.mp4" controls>

if the .mp4 is in the same directory as the HTML file (other relative paths are possible)