Mozilla サポートの検索

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.

詳しく学ぶ

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

HTML5 does not work in YouTube

more options

I use Linux and cannot get Adobe Flash to work anymore so we want to use HTML5. As recommended in Firefox I added that and no youtube videos work even tho it says HTML5 is used when it can be.

I use Linux and cannot get Adobe Flash to work anymore so we want to use HTML5. As recommended in Firefox I added that and no youtube videos work even tho it says HTML5 is used when it can be.

すべての返信 (1)

more options

If the problem is limited to YouTube, perhaps one or more of your extensions override YouTube's default? If you right-click the player and check the context menu, the last line usually indicates Flash or HTML5.

In order to decode MP4 video, Firefox on Linux uses GStreamer. You could use the following page to test whether that is working in general:

http://www.quirksmode.org/html5/tests/video.html