当サイトはユーザー体験を改善するためのメンテナンスを実施中に機能が制限される予定です。記事を読んでもあなたの問題が解決せず質問をしたい場合は、Twitter の @FirefoxSupport、Reddit の /r/firefox で、サポートコミュニティが皆さんを助けようと待機しています。

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。

Flash playback Issues since upgrade to Firefox 40

  • 2 件の返信
  • 5 人がこの問題に困っています
  • 2 回表示
  • 最後の返信者: DanNJ316

DanNJ316
DanNJ316
more options

I was prompted to upgrade to Firefox 40 today, and as soon as I did that, I started having issues with video playback on YouTube and various other sites. The video was slow, the sound was all garbled. I have the latest version of Flash installed. Everything was working perfectly before the upgrade.

Just to see, I downgraded back to Firefox 39.0.3 and the playback issues were gone. So needless to say, I won't be upgrading anytime soon. Is this likely a Firefox issue, a Flash issue, an issue with my computer? I'm running Windows XP. Any help, thoughts would be appreciated.

I was prompted to upgrade to Firefox 40 today, and as soon as I did that, I started having issues with video playback on YouTube and various other sites. The video was slow, the sound was all garbled. I have the latest version of Flash installed. Everything was working perfectly before the upgrade. Just to see, I downgraded back to Firefox 39.0.3 and the playback issues were gone. So needless to say, I won't be upgrading anytime soon. Is this likely a Firefox issue, a Flash issue, an issue with my computer? I'm running Windows XP. Any help, thoughts would be appreciated.

選ばれた解決策

Hi Dan, another XP user reported today that YouTube had switched to the HTML5 player for him, which does not work so well on XP.

There are at least two extensions to force YouTube to serve the Flash player, and perhaps one of these would work around the problem:

この回答をすべて読む 👍 0

すべての返信 (2)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

選ばれた解決策

Hi Dan, another XP user reported today that YouTube had switched to the HTML5 player for him, which does not work so well on XP.

There are at least two extensions to force YouTube to serve the Flash player, and perhaps one of these would work around the problem:

DanNJ316
DanNJ316 質問者
more options

Thanks for the reply! I tried the first add on you listed, and it appears that has fixed the problem. My videos are playing normally again. Guess my system isn't ready for HTML5 yet. Appreciate the assistance.