為了改善您的使用體驗,本網站正在進行維護,部分功能暫時無法使用。若本站的文件無法解決您的問題,想要向社群發問的話,請到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 發問,我們的社群成員將很快會回覆您的疑問。

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

How can I play mp4 videos in external player?

  • 2 回覆
  • 1 有這個問題
  • 335 次檢視
  • 最近回覆由 Jayhawk

more options

In customization I added AVI to the list to make that file type open in VLC video player. The process was when I downloaded an AVI file it popped up a dialog which offered me an "always do this" option that put the file type into that list.

I am trying to do something similar for MP3 and MP4, but am not able to prevent them from opening and running in Firefox. If I left click, the video downloads and runs. If I right click, there is no "download" option on the menu. In the customization page there is no way to add file types to the list, as the search box above the list appears to be nonfunctional.

There was an article from some years ago to change the "media.windows-media-foundation" in "about:config" from true to false, but that configuration does not appear to exist in my Firefox version (69.0.3 64 bit).

So, the question: how can I get MP4 videos to play in an external player?

In customization I added AVI to the list to make that file type open in VLC video player. The process was when I downloaded an AVI file it popped up a dialog which offered me an "always do this" option that put the file type into that list. I am trying to do something similar for MP3 and MP4, but am not able to prevent them from opening and running in Firefox. If I left click, the video downloads and runs. If I right click, there is no "download" option on the menu. In the customization page there is no way to add file types to the list, as the search box above the list appears to be nonfunctional. There was an article from some years ago to change the "media.windows-media-foundation" in "about:config" from true to false, but that configuration does not appear to exist in my Firefox version (69.0.3 64 bit). So, the question: how can I get MP4 videos to play in an external player?

被選擇的解決方法

You can set this pref to false on the about:config page to prevent Firefox from playing media files via the HTML5 media player.

  • media.play-stand-alone = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

從原來的回覆中察看解決方案 👍 1

所有回覆 (2)

more options

選擇的解決方法

You can set this pref to false on the about:config page to prevent Firefox from playing media files via the HTML5 media player.

  • media.play-stand-alone = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

more options

Great. That did the trick. Thank you.