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Firefox Browser Validation Error 54

  • 4 replies
  • 1 has this problem
  • 13 views
  • Last reply by cor-el

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I cannot access access Ancestry.ca due to a Firefox Browser Validation Error 54. Ancestry says this is a client side problem, it is not on their side. Sometimes I can access and sign in the website with no problems, then when I sign out, I cannot sign in due to a Firefox Browser Validation Error 54 again. This has been ongoing for about four months. How can I fix this Browser Validation Error 54 so I can access Ancestry.ca.

I cannot access access Ancestry.ca due to a Firefox Browser Validation Error 54. Ancestry says this is a client side problem, it is not on their side. Sometimes I can access and sign in the website with no problems, then when I sign out, I cannot sign in due to a Firefox Browser Validation Error 54 again. This has been ongoing for about four months. How can I fix this Browser Validation Error 54 so I can access Ancestry.ca.

All Replies (4)

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I have several versions of Firefox and had no problem.


I have no idea what that error means.


Make sure you are not blocking content.

https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop also see https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/

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


Diagnose Firefox issues using Troubleshoot(Safe) Mode {web link}

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


Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

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Verify that you meet the System Requirements (GTK+ and GLib) for the current Firefox release.

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It your Ubuntu Linux distribution still supported with updates or has it reached EOL (end of live) ?