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Youtube player in normal videoplayer is in the wrong ratio

  • 1 réponse
  • 1 a ce problème
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  • Dernière réponse par cor-el

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Hello, I am writing this as I have yet to find any answers

My problem lies in the fact that while browsing on YouTube the ratio suddenly changed with no warning. When in a private window it does not change the ratio and I have no idea as to why. I have tried to restart both FireFox and my computer, but none of this have helped, I then tried disabling all my extensions, this also did not help, and as I have yet to find anything about this problem elsewhere I hope that I could get my answer as to why this has happened, and how to fix it

The first picture is the ratio that is the "normal" and the second is should be, does anyone have any answers?

Hello, I am writing this as I have yet to find any answers My problem lies in the fact that while browsing on YouTube the ratio suddenly changed with no warning. When in a private window it does not change the ratio and I have no idea as to why. I have tried to restart both FireFox and my computer, but none of this have helped, I then tried disabling all my extensions, this also did not help, and as I have yet to find anything about this problem elsewhere I hope that I could get my answer as to why this has happened, and how to fix it The first picture is the ratio that is the "normal" and the second is should be, does anyone have any answers?
Captures d’écran jointes

Toutes les réponses (1)

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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You can reload webpage(s) and bypass the cache to refresh possibly outdated or corrupted files.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), click the padlock icon (Clear cookies and site data) for the domain in the selected tab.

"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 if userChrome.css/userContent.css is causing the problem.

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

You can check for issues with Enhanced Tracking Protection. 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 like blocked content.


You can remove all data stored in Firefox for a specific domain via "Forget About This Site" in the right-click context menu of an history entry ("History -> Show All History" or "View -> Sidebar -> History").

Using "Forget About This Site" will remove all data stored in Firefox for this domain like history and cookies and passwords and exceptions and cache, so be careful. If you have a password or other data for that domain that you do not want to lose, make sure to backup this data or make a note.

You can't recover from this 'forget' unless you have a backup of involved files.

If you revisit a 'forgotten' website, data for that website will be saved once again.