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Firefox get certificate error on valid certificate with TLS 1.2 site

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  • 1 has this problem
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  • Last reply by cor-el

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When visited www.omd.md I get SSL_ERROR_UNSUPPORTED_VERSION. This site have trusted valid TLS 1.2 certificate. What can be the problem?

Attached screenshots

Modified by Temciuc Ion

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For me I see these redirects via 302 in the Network Monitor


You can remove all data stored in Firefox for a specific domain via "Forget About This Site" in the right-click context menu of an history entry ("History -> Show All History" or "View -> Sidebar -> History").

Using "Forget About This Site" will remove all data stored in Firefox for this domain like history and cookies and passwords and exceptions and cache, so be cautious. If you have a password or other data for that domain that you do not want to lose then make sure to backup this data or make a note.

You can't recover from this 'forget' unless you have a backup of involved files.

If you revisit a 'forgotten' website then data for that website will be saved once again.

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