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。

Youtube videos won't load on Firefox (I get a black screen) but will load on IE. Other Flash-based websites work normally.

  • 4 件の返信
  • 73 人がこの問題に困っています
  • 1 回表示
  • 最後の返信者: duLang

Kelvets
Kelvets
more options

I've been using Youtube on Firefox normally for years, but now the videos are only a black screen where the video should be, with nothing else (no play button or anything). They load normally on IE. I tried thinking of something I could have done to provoke this, and the only things I did recently was update Flash and Java (in that order). YT still worked after the Flash update. I tried reinstalling Java but it didn't work. I didn't reinstall Flash because it works fine on other websites so I don't think this is the problem. I also tried disabling hardware acceleration on Flash but it doesn't solve it. Interestingly, the Youtube test video in this page does work. I also tried whitelisting Youtube on Adblock and disabling Greasemonkey, to no avail. I have run out of good ideas to try. Thanks to whoever can help!

edit: Hmm, I changed http:// for https:// in the address bar and the video will load. However I don't want to type this every time.

edit2: They suddenly are working again without me having done anything. Guess it was Youtube's issue.

I've been using Youtube on Firefox normally for years, but now the videos are only a black screen where the video should be, with nothing else (no play button or anything). They load normally on IE. I tried thinking of something I could have done to provoke this, and the only things I did recently was update Flash and Java (in that order). YT still worked after the Flash update. I tried reinstalling Java but it didn't work. I didn't reinstall Flash because it works fine on other websites so I don't think this is the problem. I also tried disabling hardware acceleration on Flash but it doesn't solve it. Interestingly, the Youtube test video in [http://www.youtube.com/swf_test.html this page] '''does work.''' I also tried whitelisting Youtube on Adblock and disabling Greasemonkey, to no avail. I have run out of good ideas to try. Thanks to whoever can help! edit: Hmm, I changed http:// for https:// in the address bar and the video will load. However I don't want to type this every time. edit2: They suddenly are working again without me having done anything. Guess it was Youtube's issue.

この投稿は Kelvets により に変更されました

すべての返信 (4)

Kelvets
Kelvets 質問者
more options

Hmm, I changed http:// for https:// in the address bar and videos load now. However I don't want to type this every time.

James
James
  • Moderator
  • Top 10 Contributor
more options

Try clearing the Cache in Firefox.

Tools-> Clear Recent History -> [v] Cache

or Tools->Options->Advanced->Network -> Offline storage -> [Clear Now]

Youtube may have made some changes recently. Clear the Youtube cookie and refresh page if above does not do it.

この投稿は James により に変更されました

Kelvets
Kelvets 質問者
more options

Interestingly, the videos are now working normally again, and I didn't do anything! They just came back on their own...

duLang
duLang
more options

Youtube works OK for me on Chrome, Opera, Flock and IE8 but not Firefox. I have tried reloading / updating Flash etc but to no avail. Usually it will start to play a video and then within a fraction of a second the control bar will disappear and the black screen covers everything and sound and vision are terminated. The hpps dodge does not work either.