This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

SEC_ERROR_REUSED_ISSUER_AND_SERIAL

  • 8 iimpendulo
  • 1 inayo le ngxaki
  • 69 views
  • Impendulo yokugqibela ngu Pallavi kumari

more options

On saturday our global sertificate expired and we renewed it a bit late. Now Firefox users cant visit our site, seeing this error message.

   Secure Connection Failed. 
   Please contact the server administrator or email correspondent and give them the following information: Your certificate contains the same serial number as another certificate issued by the certificate authority. Please get a new certificate containing a unique serial number.
   
   Error code: SEC_ERROR_REUSED_ISSUER_AND_SERIAL 
   
   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. 
   Please contact the website owners to inform them of this problem.

Unfortunately the only way to fix it we found is deleting the whole profile, deleting the sertificates themselves does not work for us. It is very difficult for our users to do it. Can you please help us with this problem?

On saturday our global sertificate expired and we renewed it a bit late. Now Firefox users cant visit our site, seeing this error message. Secure Connection Failed. Please contact the server administrator or email correspondent and give them the following information: Your certificate contains the same serial number as another certificate issued by the certificate authority. Please get a new certificate containing a unique serial number. Error code: SEC_ERROR_REUSED_ISSUER_AND_SERIAL The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem. Unfortunately the only way to fix it we found is deleting the whole profile, deleting the sertificates themselves does not work for us. It is very difficult for our users to do it. Can you please help us with this problem?

All Replies (8)

more options

The message from natt506 above is NOT Mozilla support.

more options
more options
more options

ryavina said

Unfortunately the only way to fix it we found is deleting the whole profile, deleting the sertificates themselves does not work for us. It is very difficult for our users to do it. Can you please help us with this problem?

Were you having them delete the cert9.db file from the profile? That should work, unless the certificate is somehow being cached somewhere else. ??

more options

jscher2000 said

ryavina said

Unfortunately the only way to fix it we found is deleting the whole profile, deleting the sertificates themselves does not work for us. It is very difficult for our users to do it. Can you please help us with this problem?

Were you having them delete the cert9.db file from the profile? That should work, unless the certificate is somehow being cached somewhere else. ??

cert_override.txt and cert8.db. But this is not an option on a larger scale, since we are a website for usual people, they would prefer just to close the tab and go on.

more options

Some time back Firefox switched from cert8.db to cert9.db.

Yes, that is inconvenient. I don't know why a new certificate would have a duplicate serial number of another certificate. The universe of possible numbers should be enormous.

more options

jscher2000 said

Some time back Firefox switched from cert8.db to cert9.db. Yes, that is inconvenient. I don't know why a new certificate would have a duplicate serial number of another certificate. The universe of possible numbers should be enormous.

I am too not sure why IT reissued the sertificate. But thank you for the qlue, we'll go about it.

more options

Some time back Firefox switched from cert8.db to cert9.db. Yes, that is inconvenient. I don't know why a new certificate would have a duplicate serial number of another certificate. The universe of possible numbers should be enormous. Unfortunately the only way to fix it we found is deleting the whole profile, deleting the sertificates themselves does not work for us. It is very difficult for our users to do it. Can you please help us with this problem? cert_override.txt and cert8.db. But this is not an option on a larger scale, since we are a website for usual people, they would prefer just to close the tab and go on.

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-error-message

https://support.mozilla.org/en-US/kb/connection-untrusted-error-message

Websites don't load - troubleshoot and fix error messages

http://kb.mozillazine.org/Error_loading_websites

What do the security warning codes mean There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connection certificates and send their own.