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Certificate issuer issue (linkedin.com and wiki.mozilla.org known so far)

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  • 6 have this problem
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  • Last reply by Halacs

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I don't understand why, but I got invalid certificate error (Error code: sec_error_unknown_issuer) when I visit linkedin.com or https://wiki.mozilla.org/CA:PendingCAs.

It seems DigiCert SHA2 Secure Server CA and its owner is installed in my Firefox 40.0.3.

Does anybody have any ideas what could be the problem?

Thanks in advance!

I don't understand why, but I got invalid certificate error (Error code: sec_error_unknown_issuer) when I visit linkedin.com or https://wiki.mozilla.org/CA:PendingCAs. It seems DigiCert SHA2 Secure Server CA and its owner is installed in my Firefox 40.0.3. Does anybody have any ideas what could be the problem? Thanks in advance!
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Chosen solution

hi, one thing you could try is to rename/delete the cert8.db file in your profile folder like described at "This Connection is Untrusted" error message appears - What to do

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Chosen Solution

hi, one thing you could try is to rename/delete the cert8.db file in your profile folder like described at "This Connection is Untrusted" error message appears - What to do

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Thanks, it solved my problem!