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Firefox error: video format or MME type is not supported

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Client said that video cannot load on firefox except other browsers. It shows "Video format or MIME type is not supported". Firefox version is 33.0.3. Video is mp4 format.

Client said that video cannot load on firefox except other browsers. It shows "Video format or MIME type is not supported". Firefox version is 33.0.3. Video is mp4 format.

Giải pháp được chọn

Hello Everyone,

I thanks and appreciate for all of your suggestions. I resolved the problem that I posted. Actually, this error does not show on my firefox browser, shows on client's firefox only. To solve this problem, I also uploaded .webm format video type to support firefox browser that cannot play .mp4 format. Well Done Guys! Sorry for late reply.

Best Regards, Myat

Đọc câu trả lời này trong ngữ cảnh 3

Chi tiết hệ thống bổ sung

Phần bổ trợ đã cài đặt

  • Google Update
  • Shockwave Flash 15.0 r0
  • GEPlugin
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.7
  • Picasa plugin
  • 5.1.20125.0
  • NVIDIA 3D Vision plugin for Mozilla browsers
  • NVIDIA 3D Vision Streaming plugin for Mozilla browsers
  • Next Generation Java Plug-in 1.6.0_37 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • iTunes Detector Plug-in
  • Adobe Shockwave for Director Netscape plug-in, version 11.6.3.633
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • NPWLPG
  • Adobe PDF Plug-In For Firefox and Netscape

Ứng dụng

  • Chuỗi đại diện người dùng: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0

Thông tin chi tiết

FredMcD
  • Top 10 Contributor
4274 giải pháp 59937 câu trả lời
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A work around is to download the clip, and use your other programs to watch it. Adobe players do not play everything.

A work around is to download the clip, and use your other programs to watch it. Adobe players do not play everything.
AliceWyman
  • Moderator
240 giải pháp 2598 câu trả lời
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Câu trả lời hữu ích

You wrote,

Client said that video cannot load on firefox except other browsers. It shows "Video format or MIME type is not supported". Firefox version is 33.0.3. Video is mp4 format.

Who is the "client" and what is the client's operating system ... also Windows 7 or something else? What media players or plugins are installed?

Could you post a link to a video that shows the error "Video format or MIME type is not supported"?

Related information:

You wrote, Client said that video cannot load on firefox except other browsers. It shows "Video format or MIME type is not supported". Firefox version is 33.0.3. Video is mp4 format. Who is the "client" and what is the client's operating system ... also Windows 7 or something else? What media players or plugins are installed? Could you post a link to a video that shows the error "Video format or MIME type is not supported"? Related information: *[[Fix common audio and video issues]] *[[Viewing HTML5 audio and video in Firefox]]
AliceWyman
  • Moderator
240 giải pháp 2598 câu trả lời
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Câu trả lời hữu ích

P.S. In case it helps, here are some mp4 video tests you can try (from mozillaZine's Testing plugins article) to see if they work for you in Firefox 33. (They both work fine for me on Windows 7 without needing a plugin.)

P.S. In case it helps, here are some mp4 video tests you can try (from mozillaZine's [http://kb.mozillazine.org/Testing_plugins#Other_media_tests Testing plugins] article) to see if they work for you in Firefox 33. (They both work fine for me on Windows 7 without needing a plugin.) *http://www.html5videoplayer.net/html5video/mp4-h-264-video-test/ *http://techslides.com/demos/sample-videos/small.mp4
cor-el
  • Top 10 Contributor
  • Moderator
17589 giải pháp 159124 câu trả lời
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See also: *https://developer.mozilla.org/en-US/docs/Web/HTML/Supported_media_formats
AliceWyman
  • Moderator
240 giải pháp 2598 câu trả lời
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myatyee91,

Are you still looking for a solution to the "Video format or MIME type is not supported" error?

In case it helps:

I found a related bug report indicating that problem videos were being served with a wrong "octet-stream" MIME type instead of the correct "video/mp4" type. (Please see Bugzilla Etiquette before commenting in bug reports)

  • Bug 975809 - Video format or MIME type is not supported. - should do content sniffing on video tag

I also found answers from previous questions with other solutions:

'''myatyee91,''' Are you still looking for a solution to the "Video format or MIME type is not supported" error? In case it helps: I found a related bug report indicating that problem videos were being served with a wrong "octet-stream" MIME type instead of the correct "video/mp4" type. <sub>(Please see [https://bugzilla.mozilla.org/page.cgi?id=etiquette.html Bugzilla Etiquette] before commenting in bug reports)</sub> *[https://bugzilla.mozilla.org/show_bug.cgi?id=975809 Bug 975809] - Video format or MIME type is not supported. - should do content sniffing on video tag I also found answers from previous questions with other solutions: *[/questions/1011225#answer-604988] (download Media Feature Pack for N and KN versions of Windows 8.1) *[/questions/1024630#answer-639230] (reset Firefox preferences or else disable conflicting Firefox extensions)
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Giải pháp được chọn

Hello Everyone,

I thanks and appreciate for all of your suggestions. I resolved the problem that I posted. Actually, this error does not show on my firefox browser, shows on client's firefox only. To solve this problem, I also uploaded .webm format video type to support firefox browser that cannot play .mp4 format. Well Done Guys! Sorry for late reply.

Best Regards, Myat

Hello Everyone, I thanks and appreciate for all of your suggestions. I resolved the problem that I posted. Actually, this error does not show on my firefox browser, shows on client's firefox only. To solve this problem, I also uploaded .webm format video type to support firefox browser that cannot play .mp4 format. Well Done Guys! Sorry for late reply. Best Regards, Myat
AliceWyman
  • Moderator
240 giải pháp 2598 câu trả lời
Được đăng

Thanks for posting back with the outcome, Myat. I marked your reply as the solution.

Thanks for posting back with the outcome, Myat. I marked your reply as the solution.