Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

CU Website Has Expired Certificate

  • 3 fhreagra
  • 1 leis an bhfadhb seo
  • 1 view
  • Freagra is déanaí ó cor-el

Carole On Fire
Carole On Fire
more options

When I go to login to my credit union, I get this message: "Websites prove their identity via certificates, which are valid for a set time period. The certificate for www.nmefcu.org expired on 3/25/2021.

Error code: SEC_ERROR_EXPIRED_CERTIFICATE"

I called my credit union and they told me they don't support Firefox and if I want to login I would have to use Edge or Chrome. Is there a fix for Firefox or am I being forced to use a different browser by my credit union?

When I go to login to my credit union, I get this message: "Websites prove their identity via certificates, which are valid for a set time period. The certificate for www.nmefcu.org expired on 3/25/2021. Error code: SEC_ERROR_EXPIRED_CERTIFICATE" I called my credit union and they told me they don't support Firefox and if I want to login I would have to use Edge or Chrome. Is there a fix for Firefox or am I being forced to use a different browser by my credit union?

Réiteach roghnaithe

I'm redirected to www.nusenda.org, you can try that website.

If I try the link you posted (www.nmefcu.org) then I get the message that a secure connection isn't possible and whether I want to visit its http:// version. If I approve then I'm redirected from nmefcu to https://www.nusenda.org that works without problems as you can see in the above reply by FredMcD.

If you use a bookmark to access this website then create a new bookmark for Nusenda.

Read this answer in context 👍 1

All Replies (3)

FredMcD
FredMcD
more options

I used several versions of Firefox and had no problem.


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-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

FredMcD
FredMcD
more options

Certificate data:

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Réiteach Roghnaithe

I'm redirected to www.nusenda.org, you can try that website.

If I try the link you posted (www.nmefcu.org) then I get the message that a secure connection isn't possible and whether I want to visit its http:// version. If I approve then I'm redirected from nmefcu to https://www.nusenda.org that works without problems as you can see in the above reply by FredMcD.

If you use a bookmark to access this website then create a new bookmark for Nusenda.