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Microsoft Family Safety stopping Firefox

  • 6 replies
  • 20 have this problem
  • 132 views
  • Last reply by philipp

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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?

Chosen solution

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

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All Replies (6)

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

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That was a quick reply :)

And it works, thanks.

How come Chrome doesn't have this problem?

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Chosen Solution

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

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wrong entry. ignore this post

Modified by chucklepie

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

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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).