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youtube thumbnails

  • 5 replies
  • 1 has this problem
  • 10 views
  • Last reply by cor-el

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Have firefox 77.0.1 and when I go to youtube it won't display thumbnails on home page or subscribed pages whether I'm logged in or not. This is frustrating as it makes youtube useless. Tried youtube on Microsoft Edge and have no problem. I consider it a problem with firefox and not youtube. Tried clearing cookies and history for sight and makes no difference.

Have firefox 77.0.1 and when I go to youtube it won't display thumbnails on home page or subscribed pages whether I'm logged in or not. This is frustrating as it makes youtube useless. Tried youtube on Microsoft Edge and have no problem. I consider it a problem with firefox and not youtube. Tried clearing cookies and history for sight and makes no difference.

Chosen solution

You can create a new profile as a quick test to see if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.


It is possible that (anti-virus) security software is causing the problem.
Try to disable security software temporarily to see if that makes a difference.

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Make sure you are not blocking content.

Start Firefox in Safe Mode {web link}

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?


https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop

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You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.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

"Remove the Cookies" for 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 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 Safe Mode start window
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Behavior is the same, no difference

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none of the suggestions work, one time I uninstalled firefox and then reloaded it. First time I accessed youtube thumbnails appeared then disappeared upon login.

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Chosen Solution

You can create a new profile as a quick test to see if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.


It is possible that (anti-virus) security software is causing the problem.
Try to disable security software temporarily to see if that makes a difference.