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Some videos on YouTube will not run !!

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Some videos on YouTube wil not run - shows just that circling arrow !

I'm running a fully updated Windows 10 - F5 don't cure the problem Restart PV, router or modem don't Reset FireFox work but only just after reset - if I try show the same vidoe again - same problem is back ! I have tried running is safe mode - no help ! I've tried to shut down AddBlocker - no help !

It's NOT all videos and not all videos from the same creator !

The problem started 4-5 days ago and is worsening !

What is there to do ?

Some videos on YouTube wil not run - shows just that circling arrow ! I'm running a fully updated Windows 10 - F5 don't cure the problem Restart PV, router or modem don't Reset FireFox work but only just after reset - if I try show the same vidoe again - same problem is back ! I have tried running is safe mode - no help ! I've tried to shut down AddBlocker - no help ! It's NOT all videos and not all videos from the same creator ! The problem started 4-5 days ago and is worsening ! What is there to do ?

所有回覆 (9)

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Did you turn off Hardware performance to see what happen if it's enabled.

https://support.mozilla.org/en-US/kb/performance-settings

有幫助嗎?

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Didn't solve the problem ! How should it ... the problem came up 4-5 days ago and I didn't change anything in the settings !

由 keld.soerensens 於 修改

有幫助嗎?

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Did you also try Private Mode to see what happens. And what are the problem video urls?

由 Dropa 於 修改

有幫助嗎?

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Here is one I couldn't play yesterday and not today in private mode: https://www.youtube.com/watch?v=Kl3KlAr5xio

有幫助嗎?

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You can check the Web Console (Tools -> Web Developer) for media related messages.


If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, DuckDuckGo PE, Disconnect, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block content.

Firefox shows a purple shield instead of a gray shield at the left end of the location/address bar in case Enhanced Tracking Protection is blocking content.

  • click the shield icon for more detail and possibly disable the protection

You can check the Web Console for relevant-looking messages about blocked content.


You can try these steps in case of issues with webpages:

You can reload webpage(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • hold down the Shift key and left-click the Reload button
  • press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • press "Command + Shift + R" (Mac)

clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Settings).

"Remove the Cookies" for websites that cause problems:

  • Settings -> Privacy & Security
    Cookies and Site Data: "Manage Data"

"Clear the Cache":

  • Settings -> Privacy & Security
    Cookies and Site Data -> Clear Data -> [X] Cached Web Content -> Clear

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or userChrome.css is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window

有幫助嗎?

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NON of these methods - huge as they are - can NOT explain WHY the problem came up in the first place !

I did NOT change ANY setting in the periode from I saw the problem the first time till today ehre it's invalidating the use of FireFox ... IF it's a FireFox problem.

有幫助嗎?

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I think it has to do with the AddBlocker !!!!!!!!

When I run into a video, that wont play AND I turn off the AddBlocker ... it' runs ... I did it this way for - I think ' 10 videos !

Who can report this back to AddBlocker to fix it ?

由 keld.soerensens 於 修改

有幫助嗎?

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I've been having problems with this all week. The problem is the YouTube video resolution. Change it from auto or whatever you use (1080p for me) and it works.

有幫助嗎?

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I've tried that too but it only works sometimes - shutting down the AddBlocker had been working every time until now !

But it's NOT a good solution - AddBlockerPLUS should have a notice and then fix it but I'm not able to report back to them ... I think it's because my version of AddBlocker is a FREE version.

由 keld.soerensens 於 修改

有幫助嗎?

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