Avatar for Username

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。

mp4 file type missing

gherrle
gherrle
more options

Can't open video mp4 files currently.

Can't open video mp4 files currently.

すべての返信 (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

If you do not have any programs that play MP4s, you could consider installing VLC, a free and open source program which provides a stand-alone player as well as a Firefox plugin. It can handle many more formats than your built-in player(s).

http://www.videolan.org/vlc/