blocks|key|349485|text|您的服务器使用HTTP头Content-Type:+text/plain传递资源http://dev.fristil.se/hbh/wp-content/themes/skal/images/video/bubblybeer.webm+-因此Firefox拒绝将其视为任何其他内容。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|349486|“教”你的服务器提供video/webm这样的内容。|349487|(你的ogv也是如此--你的服务器也说资源应该是文本，而应该是video/ogg。)|349488|entityMap|0|LINK|mutability|MUTABLE|url|http://dev.fristil.se/hbh/wp-content/themes/skal/images/video/bubblybeer.webm^0|C|O|14|25|0|0|A|A|0|V|9|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|J|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]]]

Your server delivers the resource <a href="http://dev.fristil.se/hbh/wp-content/themes/skal/images/video/bubblybeer.webm" rel="nofollow">http://dev.fristil.se/hbh/wp-content/themes/skal/images/video/bubblybeer.webm</a> with the HTTP header <code>Content-Type: text/plain</code> – and therefore Firefox refuses to treat it as anything else.

“Teach” your server to deliver such content as <code>video/webm</code>.

(Same goes for your ogv – your server also says that resource would be text, should be <code>video/ogg</code> instead.)

blocks|key|349525|text|您的问题是服务器端。服务器实际上为视频(至少是.ogg视频)返回text/plain作为MIME类型。您需要调整服务器的配置以返回正确的MIME类型，以便Firefox能够正确识别该文件。这与这里描述的问题是相同的：no+video+with+supported+format+and+MIME+type+found.+What+does+this+mean+and+how+can+I+change+this+(只是看不到消息，因为您的<video>标记中没有controls选项)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|349526|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/10424729/no-video-with-supported-format-and-mime-type-found-what-does-this-mean-and-how^0|W|A|63|7|6F|8|30|2P|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

Your problem is server-side. The server is actually returning <code>text/plain</code> as MIME type for the videos (at least the .ogg one). You will need to adjust your server's configuration to return the correct MIME type so that Firefox can correctly recognize the file. It is the same issue described here: <a href="https://stackoverflow.com/questions/10424729/no-video-with-supported-format-and-mime-type-found-what-does-this-mean-and-how">no video with supported format and MIME type found. What does this mean and how can I change this</a> (you just don't see the message because you don't have the <code>controls</code> option in your <code>&lt;video&gt;</code> tag).

blocks|key|131560|text|我在使用HTML5播放器的时候也遇到了同样的问题。火狐说“找不到HTML5视频”。一开始我以为是Miro有编码问题，于是我试了几个不同的程序，结果都一样。所以我把范围缩小到服务器上的一个不正确的MIME类型，将webm作为文本/纯文本传输(你可以使用web检查器来查看)，或者Firefox只是很糟糕。前段时间我有托管提供商AddType视频/webm+.webm，所以我不能肯定。在意识到我过去使用过Flowplayer并且只需要一个mp4文件后，我所做的就是直接从我的HTML中删除了webm引用。火狐可以使用mp4。删除此命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|131561|+<source+type="video/webm"+src="URL_to_webm.webm"+/>|code-block|syntax|javascript|131562|这使得它可以在任何浏览器(IE，Chrome，火狐，iPad，iPhone)上运行。苹果电脑上的Chrome29使用的是mp4。|131563|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I was having the same problem w/ webm using the Flowplayer HTML5 player. Firefox said "HTML5 Video Not Found". At first I thought it was Miro having an encode problem and I tried several different programs, all with the same result. So I narrowed it down to either an improper MIME type on my server, transmitting the webm as text/plain (you can use web inspector to see this) or Firefox just sucking. I had the hosting provider AddType video/webm .webm a while ago, so I can't be positive. What I did was just remove the webm reference directly from my HTML after realizing that I had used Flowplayer in the past and only needing a single mp4 file. Firefox can use mp4. Remove this:

<pre><code> &lt;source type="video/webm" src="URL_to_webm.webm" /&gt;
</code></pre>

That made it work on everything (IE, Chrome, Firefox, iPad, iPhone). Chrome 29 on Mac uses the mp4.

blocks|key|131599|text|我在我的windows主机上也遇到了同样的问题。为了解决这个问题，我在web.config中加入了mime设置|type|unstyled|depth|inlineStyleRanges|entityRanges|data|131600|<staticContent>
++<mimeMap+fileExtension=".webm"+mimeType="video/webm"+/>
</staticContent>|code-block|syntax|javascript|131601|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I got the same problem in my windows hosting. To solve this i included the mime setting in web.config inside 

<pre><code>&lt;staticContent&gt;
 &lt;mimeMap fileExtension=".webm" mimeType="video/webm" /&gt;
&lt;/staticContent&gt;
</code></pre>

I've converted the file to three different formats: mp4, web, and ogv. According to <a href="http://caniuse.com/#search=video">caniuse</a> firefox supposedly supports both ogg and webm, but nothing is playing.

I converted the files using <a href="http://www.mirovideoconverter.com/">Miro Converter</a>, according to other people this should work just fine. I believe Chrome picks up the webm file (if i rightclick -> open in new tab, it shows me the webm file), which is great.

URL to the site: <a href="http://dev.fristil.se/hbh/">http://dev.fristil.se/hbh/</a>

I have a static image as a background. The video is suppose to display above it, so if it's not moving you can tell it's not working.

Any ideas?

HTML5 video not playing in Firefox

服务器

HTML5

我已经将该文件转换为三种不同的格式: mp4、web和ogv。根据的说法，火狐应该同时支持ogg和webm，但什么都不支持。我用转换了文件，据其他人说，这应该可以很好地工作。我相信Chrome会拿起webm文件(如果我在新标签页中右击->打开，它会显示webm文件)，这很棒。网站网址：我有一张静态图像作为背景。视频应该...

问HTML5视频无法在Firefox中播放
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