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.

Rohkem teavet

Microsoft Family Safety stopping Firefox

  • 6 vastust
  • 20 on selline probleem
  • 4 views
  • Viimati vastas philipp

more options

Hello, Firefox was fine last week now it tells me the following for sites like Facebook, Google, etc

www.facebook.com uses an invalid security certificate. The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer)

On some I cannot bypass.

The problem is I'm using Microsoft Family safety and the certificate issuer is now: Microsoft Family Safety.

I don't know if this is caused by a Firefox update or Microsoft update, but either way Firefox now does not work, I cannot fix it and I'll have to stop using it unless there's a solution. I imagine the same fault is happening for anyone else using Microsoft Familty safety.

I also use Chrome, which is even more pedantic about certificates, but Chrome works perfectly, suggesting it's a Firefox update that is shafting this.

Any idea?

Hello, Firefox was fine last week now it tells me the following for sites like Facebook, Google, etc www.facebook.com uses an invalid security certificate. The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer) On some I cannot bypass. The problem is I'm using Microsoft Family safety and the certificate issuer is now: Microsoft Family Safety. I don't know if this is caused by a Firefox update or Microsoft update, but either way Firefox now does not work, I cannot fix it and I'll have to stop using it unless there's a solution. I imagine the same fault is happening for anyone else using Microsoft Familty safety. I also use Chrome, which is even more pedantic about certificates, but Chrome works perfectly, suggesting it's a Firefox update that is shafting this. Any idea?

Valitud lahendus

chrome relies on the built-in windows certificate store whereas firefox implements its own trust store/security module.

Loe vastust kontekstis 👍 0

All Replies (6)

more options

hello, this is caused by a windows update - please see http://support.microsoft.com/kb/2965142/en-us#2 for details.

more options

That was a quick reply :)

And it works, thanks.

How come Chrome doesn't have this problem?

more options

Valitud lahendus

chrome relies on the built-in windows certificate store whereas firefox implements its own trust store/security module.

more options

wrong entry. ignore this post

Muudetud chucklepie poolt

more options

So, was this for added security or cross platform ease? Chrome is platform independent too....

more options

mozilla always came with its own security component: https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS

this is intended for cross-plattform compatibility and security as well. encryption is such an important infrastructure of the web, so i think it's beneficial that there is a variety of different and also open source modules that enable it (a central system will be easier to exploit).