We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Die Funktionalität dieser Website ist durch Wartungsarbeiten eingeschränkt, die Ihr Erlebnis verbessern sollen. Wenn ein Artikel Ihr Problem nicht löst und Sie eine Frage stellen möchten, können Sie unsere Gemeinschaft über @FirefoxSupport auf Twitter, /r/firefox oder Reddit fragen.

Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Telefonnummer anzurufen, eine SMS an eine Telefonnummer zu senden oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Weitere Informationen

Firefox won't play Youtube videos. Website opens OK, but when I click on a video, nothing happens; the screen remains dark. Windows 7 Pro x64, Firefox 27.

  • 4 Antworten
  • 25 haben dieses Problem
  • 8 Aufrufe
  • Letzte Antwort von nharrold

more options

Youtube was working OK, then just stopped opening and playing videos. Also won't play from the links in my Bookmarks list. I've loaded the latest Adobe flash player and Firefox 27. Tried some of the suggested fixes, but none of them worked.

Youtube was working OK, then just stopped opening and playing videos. Also won't play from the links in my Bookmarks list. I've loaded the latest Adobe flash player and Firefox 27. Tried some of the suggested fixes, but none of them worked.

Alle Antworten (4)

more options

Hello nharrold,

Thanks for contacting Mozilla Support. I'm sorry that youtube isn't working for you. Here's some things to try to get youtube back up and running again.

Check your plugins are uptodate!

   http://www.mozilla.org/en-US/plugincheck/ 

Type about:addons in URL and Goto Plugins

   Check all the plugins are "Always Active" 

Give these things a try and please let us know if this solves your issue.

Cheers, Patrick

more options

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window.

You can check for problems with current Flash plugin versions and try these:

  • disable a possible RealPlayer Browser Record Plugin extension for Firefox and update the RealPlayer if installed
  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
  • disable hardware acceleration in the Flash plugin
more options

Plugins were all active. Didn't help any.

more options

I finally fixed it by using System Restore.