We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

Avatar for Username

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

Thread ini telah diarkib. Sila tanya soalan baru jika anda perlu bantuan.

Browsing

  • 2 balasan
  • 1 ada masalah ini
  • 2 paparan
  • Balasan terakhir oleh mark508

goranbzg
goranbzg
more options

Secure Connection Failed

An error occurred during a connection to app. You are attempting to import a cert with the same issuer/serial as an existing cert, but that is not the same cert.

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.


Mozilla's issue, as the Chrome is working perfect.

Certificate Dropa Sep 20, 2023, 8:55:35 AM

You don't indicate what or where this certificate is coming from for any forum user to know what is happening or why it's not being recognized by the browser.

Secure Connection Failed An error occurred during a connection to app. You are attempting to import a cert with the same issuer/serial as an existing cert, but that is not the same cert. 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. Mozilla's issue, as the Chrome is working perfect. ----------- Certificate Dropa Sep 20, 2023, 8:55:35 AM You don't indicate what or where this certificate is coming from for any forum user to know what is happening or why it's not being recognized by the browser.

All Replies (2)

Paul
Paul
  • Top 25 Contributor
  • Moderator
more options

Hi

This support article should help:

https://support.mozilla.org/en-US/kb/secure-connection-failed-firefox-did-not-connect

mark508
mark508
more options

I've had this a few times lately, with different sites (including one of my own). It often goes through fine when I try again later. It always works perfectly in rival browsers.

(And, no, the support article did not help.)

Diubah oleh mark508