Firefox Browser Validation Error 54
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.
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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.
- How to clear the Firefox cache {web link}
Is there a reason you are using an older version of Firefox?
There is security software like Avast, Kaspersky, BitDefender and ESET that
intercept secure connection certificates and send their own.
https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can
https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites
https://support.mozilla.org/en-US/kb/secure-connection-failed-firefox-did-not-connect
https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors
Verify that you meet the System Requirements (GTK+ and GLib) for the current Firefox release.
It your Ubuntu Linux distribution still supported with updates or has it reached EOL (end of live) ?