Firefox Error – SSL_ERROR_WEAK_SERVER_EPHEMERAL_DH_KEY

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KB ID 0001189 Dtd 21/05/16

Problem

Firefox is what I use when Opera does not work, so when I tried to connect to some management servers that did not support Opera this happened;

ssl_error_weak_server_ephemeral_dh_key

 

Secure Connection Failed
An error occurred during a connection to {FQDN). SSL received a weak ephemeral Diffie-Hellman key in Server Key Exchange handshake message. (Error code: SSL_ERROR_WEAK_SERVER_EPHEMERAL_DH_KEY)

 

Solution

Navigate to ‘about:config’ > I’ll be careful, I promise!

Firefox About Config

In the search bar type ssl3.dhe_rsa_aes_128_sha > change its value to false.

Firefox enable ssl3 aes256

In the search bar type ssl3.dhe_rsa_aes_256_sha > change its value to false.

Enable ssl3 aes128 Firefox

 

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Author: PeteLong

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