Firefox add-ons disabled because Mozilla certificate untrusted
The Firefox 6 add-ons manager is broken due to an untrusted certificates from Mozilla. This started with the 6.0 download, continued with 6.0.1 update, and continues even after deleting and reinstalling Firefox.
Symptom: displaying to the "Get Add-Ons" page produces a blank list asking "What are add-ons?", and saying all sorts of cool stuff will be listed if I was connected to the internet. The other tabs (appearances, extensions, plug-ins) display correct lists with several items each.
Symptom: Navigating 6.0.1 to addons.mozilla.org/en-US/firefox/ produces a text-only display and gives random warning the certificates are not trusted because the issuer is not trusted. The warning does *NOT* give the option to confirm the security certificate. >>> Displaying to the exact same page in Safari loads with pictures and gives no security warnings. <<<
Minimum fix requested: Need to find/install valid Firefox certificates so Firefox will trust Firefox to install Firefox add-ons coming from the Firefox website.
Even better fix requested: How to nuke the entire certificate list and start over with Mozilla's default list for new installs. What would be a good (minimum) list of trust certificates, and where to get them?
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More info: the Firefox add-on certificate was not trusted because it was issued by an untrusted source. The untrusted source was VeriCert. Their certificates were listed in Firefox (advanced -> certificates), but deleting them had no effect. Restart Firefox and these deleted/untrusted certificates would magically reappear... multiple times. In fact. deleting *any* of the apparently useless certificates (ones from Turkey, Brazil, Germany, etc, and other places I will not be visiting any time soon) resulting in their immediate replacement.
Wonderful... 6.0.1 has zombie security certificates.
Minimum fix - install the 6.0.2 update. Imagine that. VeriCert is not listed any more but ValiCert is. And Firefox add-ons are working.
You can't remove build-in root certificates (Builtin Object Token). You can edit the certificate and remove the trust bits. That will make it no longer possible for them to be used as a root certificate.
The addons.mozilla.org uses a certificate issued by "VeriSign Class 3 Extended Validation SSL CA"
If you see something else then check that you aren't using a proxy or have security software (firewall) that intercept secure connections and send their own certificate.
I have version 8.0 and this is still happening with Mozilla sites, how does htis make any sense?