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[Solved] certificate contains unknown critical extension error firefox 5

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  • 28 have this problem
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  • Last reply by mtimmjcp

mtimmjcp
mtimmjcp
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Secure connection failed An error occurred during a connection to an internal website Certificate contains unknown critical extension (Error code: sec_error_unknown_critical_extension)

Secure connection failed An error occurred during a connection to an internal website Certificate contains unknown critical extension (Error code: sec_error_unknown_critical_extension)

Modified by the-edmeister

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mtimmjcp
mtimmjcp Question owner
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I imported the root chain for my internal CAs into FireFox and this fixed the problem. Tools->Options->Advanced->View Certificates->Import