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Thunderbird 45.4.0 TLS Ciphers

2016-11-09 1 comment

While working on strengthening my email server I discovered that Mozilla Thunderbird 45.4.0 only supports the following ciphers:

TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_CBC_SHA
TLS_DHE_RSA_WITH_AES_256_CBC_SHA
TLS_RSA_WITH_AES_128_CBC_SHA
TLS_RSA_WITH_AES_256_CBC_SHA
TLS_RSA_WITH_3DES_EDE_CBC_SHA

Not sure why it doesn’t just use the default from OpenSSL.

Update: As pointed out here and other locations, Thunderbird doesn’t use OpenSSL for its encryption library, rather it uses NSS.  This is a good example of why one shouldn’t write articles while sick.