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Why am I getting a scroll bar on the side when trying to view Youtube videos full screen?

  • 6 replies
  • 1 has this problem
  • 7 views
  • Last reply by cor-el

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On my win10 desktop using Firefox 64.0, I get an annoying sidebar when viewing youtube videos in full-screen mode and using it can cause the page to scroll down from the actual video. On my win10 laptop, which also runs Firefox 64.0, this doesn't happen and full-screen videos are presented properly (see "shared data").

What can cause this? How can I get rid of that scroll bar?

On my win10 desktop using Firefox 64.0, I get an annoying sidebar when viewing youtube videos in full-screen mode and using it can cause the page to scroll down from the actual video. On my win10 laptop, which also runs Firefox 64.0, this doesn't happen and full-screen videos are presented properly (see "shared data"). What can cause this? How can I get rid of that scroll bar?

All Replies (6)

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So what does the screenshot of the error show? Just stating it doesn't convey the error.

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You may have accidentally zoomed web page(s). Reset the page zoom on pages that cause problems.

  • View -> Zoom -> Reset (Ctrl+0/Command+0 (zero))

You can try these steps in case of issues with web pages:

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.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 from websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"Remove the Cookies" from websites that cause problems:

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Manage Data

"Clear the Cache":

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Clear Data -> Cached Web Content: Clear

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

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window
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It shoes there's a scroll bar on the left, which shouldn't be there

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Hmm, I don't have a bar on Windows 7 (laptop), although I can scroll by using a two finger swipe down on the touchpad.

Does your fullscreen left-side sidebar list the channels, etc.?

I recently cleared my YouTube cookies and got the "new" design (has a dark theme on the settings menu, for example). Do you have that or are you still using the old design?

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When I click the full screen button on the player then I can scroll the YouTube media player page with the mouse wheel, but I do not see a scroll bar.

The player control bar has a "Scroll for details" button that you probably should resist to click :wink: