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firefox gives session error on youtube

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I downloaded the Firefox Browser. When I log on to YouTube, something happens like this. When I click on the profile, it opens as when I click the profile. On the left there is a login button. When I click it, it gives an error. I cannot subscribe to any channel. I have a problem. I could not find a solution in the forums. footnote: delete cookie and site data off

I downloaded the Firefox Browser. When I log on to YouTube, something happens like this. When I click on the profile, it opens as when I click the profile. On the left there is a login button. When I click it, it gives an error. I cannot subscribe to any channel. I have a problem. I could not find a solution in the forums. footnote: delete cookie and site data off

Chosen solution

This can be caused by using a bookmark that is no longer working.

Do you use a bookmark or are you starting with the main (home) page of this website?

If you use a bookmark to access a specific page then instead navigate to this page starting with the main page or with the sign in page in case there is a problem with this bookmark.

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All Replies (7)

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If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, 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. You can click shield icon for more detail and possibly disable the protection. You can check the Web Console for messages about blocked content.


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You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.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 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 Safe Mode start window
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None of what you said worked for me. I'll try all of them again.

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What error do you get when you try to login ?

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Chosen Solution

This can be caused by using a bookmark that is no longer working.

Do you use a bookmark or are you starting with the main (home) page of this website?

If you use a bookmark to access a specific page then instead navigate to this page starting with the main page or with the sign in page in case there is a problem with this bookmark.

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Unfortunately, that did not work either. I entered the youtube by searching personally. (This situation does not exist on other sites). I throw at you what the problem looks like. Perhaps you will have a more consistent opinion

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It worked on my 2nd try thx