Ce site disposera de fonctionnalités limitées pendant que nous effectuons des opérations de maintenance en vue de vous proposer un meilleur service. Si un article ne règle pas votre problème et que vous souhaitez poser une question, notre communauté d’assistance est prête à vous répondre via @FirefoxSupport sur Twitter, et /r/firefox sur Reddit.

Avatar for Username

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

En savoir plus

Ce sujet de discussion a été archivé. Veuillez poser une nouvelle question si vous avez besoin d’aide.

V79.0 won't run YouTube Videos

  • 1 réponse
  • 1 a ce problème
  • 19 vues
  • Dernière réponse par ARMAN KHAN

Aaron A.
Aaron A.
more options

Just installed the update to v79 (64 bit) on Win 10 v2004 (64 bit). I when Firefox reopened, I went to YouTube to watch a video and play would not work. You get the "thumbnail" pic of video and then the screen goes black and an error message appears saying the video cannot be played. I turned off the Hardware Accelerator, rebooted, same issue. Restarted in Safe Mode, same issue. Updated all Plug-Ins and Extensions, same problem. I can play YouTube videos in Chrome and Edge without issues.

Just installed the update to v79 (64 bit) on Win 10 v2004 (64 bit). I when Firefox reopened, I went to YouTube to watch a video and play would not work. You get the "thumbnail" pic of video and then the screen goes black and an error message appears saying the video cannot be played. I turned off the Hardware Accelerator, rebooted, same issue. Restarted in Safe Mode, same issue. Updated all Plug-Ins and Extensions, same problem. I can play YouTube videos in Chrome and Edge without issues.

Toutes les réponses (1)

ARMAN KHAN
ARMAN KHAN
more options

hello

Aaron A. .......


Another thing to try : Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

You will need to restart Firefox for this to take effect so save all work first (e.g., mail you are composing, online documents you're editing, etc.,) and then perform these steps: 


 Click the menu button New Fx Menu and select Options (Windows) or Preferences (Mac, Linux).
 Select the Advanced panel and the General tab.
 Uncheck Use hardware acceleration when available.
 Close Firefox completely and then restart Firefox to see if the problem persists.

In Firefox 78 and above: 

 Click the menu button New Fx Menu and select Options (Windows) or Preferences (Mac, Linux).
 Select the General panel.
 Under Performance, uncheck Use recommended performance settings. Additional settings will be displayed.

 Fx55Performance-disableHWA

 Uncheck Use hardware acceleration when available.
 Close Firefox completely and then restart Firefox to see if the problem persists.

Did this fix your problems? Please report back to us!

If the problem is resolved, you should check for updates for your graphics driver by following the steps mentioned in these Knowledge base articles: 

 Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems 

 Upgrade your graphics drivers to use hardware acceleration and Web

thank you and regards,

Arman