Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
Solved Archived

Won't allow connect to website with minor certificate error

ham23

After upgrading to firefox 15, I can not longer connect to my company website. It does use a certificate that gets a validation error because the CN doesn't match the web site address (extra character in the CN). In all previous versions of firefox, after it reported the error, it would allow me to continue anyway if I chose. I have done this every two weeks for a year, but now it won't let me continue. T

After upgrading to firefox 15, I can not longer connect to my company website. It does use a certificate that gets a validation error because the CN doesn't match the web site address (extra character in the CN). In all previous versions of firefox, after it reported the error, it would allow me to continue anyway if I chose. I have done this every two weeks for a year, but now it won't let me continue. T
Read this answer in context

Chosen Solution

Firefox 16 (and 17) have resolved this issue for me.

All Replies (7)

The Shockwave and Java applications may need 'PLUGIN UPDATE' for newer versions. Suggest a check for any outdated PLUGIN UPDATE found from the Mozilla Firefox Toolbar 'Help' Menu > 'Firefox Help' > [lower right margin displays link to more info to review and 'UPDATE PLUGIN's!

Try to rename the cert8.db file in the Firefox profile folder to cert8.db.old or delete the cert8.db file to remove intermediate certificates that Firefox has stored.

If that helped to solve the problem then you can remove the renamed cert8.db.old file.
Otherwise you can rename (or copy) the cert8.db.old file to cert8.db to restore the previous intermediate certificates.
Firefox will automatically store intermediate certificates when you visit websites that send such a certificate.

That made no difference to firefox, but upgrading the JRE seems to have helped IE get past the same issue.

No difference to firefox, but upgrading the JRE seems to have helped IE get past the same issue.

So is the "digitalPersona extension 5.0.0.4490" necessary? If so where does one get an update?

Chosen Solution

Firefox 16 (and 17) have resolved this issue for me.

Do not understand.