我有一个nginx服务器，其配置如下：
ssl_protocols SSLv3;
我现在无法真正改变 （尽管可能很快就会改变）。配置中的任何位置都不存在ssl_ciphers。
当Chrome连接到此服务器时，一切正常。但是，使用Wireshark检查SSL握手会显示
Secure Sockets Layer
TLSv1 Record Layer: Handshake Protocol: Client Hello
Content Type: Handshake (22)
Version: TLS 1.0 (0x0301)
Length: 178
Handshake Protocol: Client Hello
Handshake Type: Client Hello (1)
Length: 174
Version: TLS 1.2 (0x0303)
Random
Session ID Length: 0
Cipher Suites Length: 74
Cipher Suites (37 suites)
Cipher Suite: TLS_EMPTY_RENEGOTIATION_INFO_SCSV (0x00ff)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 (0xc024)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 (0xc023)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_RC4_128_SHA (0xc007)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA (0xc008)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)
Cipher Suite: TLS_ECDHE_RSA_WITH_RC4_128_SHA (0xc011)
Cipher Suite: TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xc012)
Cipher Suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 (0xc026)
Cipher Suite: TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 (0xc025)
Cipher Suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 (0xc02a)
Cipher Suite: TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 (0xc029)
Cipher Suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA (0xc005)
Cipher Suite: TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA (0xc004)
Cipher Suite: TLS_ECDH_ECDSA_WITH_RC4_128_SHA (0xc002)
Cipher Suite: TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA (0xc003)
Cipher Suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA (0xc00f)
Cipher Suite: TLS_ECDH_RSA_WITH_AES_128_CBC_SHA (0xc00e)
Cipher Suite: TLS_ECDH_RSA_WITH_RC4_128_SHA (0xc00c)
Cipher Suite: TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA (0xc00d)
Cipher Suite: TLS_RSA_WITH_AES_256_CBC_SHA256 (0x003d)
Cipher Suite: TLS_RSA_WITH_AES_128_CBC_SHA256 (0x003c)
Cipher Suite: TLS_RSA_WITH_AES_128_CBC_SHA (0x002f)
Cipher Suite: TLS_RSA_WITH_RC4_128_SHA (0x0005)
Cipher Suite: TLS_RSA_WITH_RC4_128_MD5 (0x0004)
Cipher Suite: TLS_RSA_WITH_AES_256_CBC_SHA (0x0035)
Cipher Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA (0x000a)
Cipher Suite: TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (0x0067)
Cipher Suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x006b)
Cipher Suite: TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x0033)
Cipher Suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x0039)
Cipher Suite: TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (0x0016)
Compression Methods Length: 1
Compression Methods (1 method)
Compression Method: null (0)
Extensions Length: 59
Extension: server_name
Extension: elliptic_curves
Extension: ec_point_formats
Extension: signature_algorithms
<followed by>
Secure Sockets Layer
TLSv1 Record Layer: Handshake Protocol: Multiple Handshake Messages
Content Type: Handshake (22)
Version: TLS 1.0 (0x0301)
Length: 4073
Handshake Protocol: Server Hello
Handshake Type: Server Hello (2)
Length: 76
Version: TLS 1.0 (0x0301)
Random
Session ID Length: 32
Session ID: 69e68f6d99482e742e576877c9debdd38aa1bed1a33f5067...
Cipher Suite: TLS_RSA_WITH_RC4_128_MD5 (0x0004)
Compression Method: null (0)
Extensions Length: 4
Extension: server_name
Handshake Protocol: Certificate
Handshake Type: Certificate (11)
Length: 3985
Certificates Length: 3982
Certificates (3982 bytes)
Handshake Protocol: Server Hello Done
Handshake Type: Server Hello Done (14)
Length: 0
对我而言，似乎TLSv1.0在那里得到了解决。 这怎么可能？ 然而，当尝试与Firefox连接时，会出现更多的疯狂：
Secure Sockets Layer
SSLv3 Record Layer: Handshake Protocol: Client Hello
Content Type: Handshake (22)
Version: TLS 1.0 (0x0301)
Length: 187
Handshake Protocol: Client Hello
Handshake Type: Client Hello (1)
Length: 183
Version: TLS 1.2 (0x0303)
Random
Session ID Length: 0
Cipher Suites Length: 46
Cipher Suites (23 suites)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)
Cipher Suite: TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xc012)
Cipher Suite: TLS_ECDHE_ECDSA_WITH_RC4_128_SHA (0xc007)
Cipher Suite: TLS_ECDHE_RSA_WITH_RC4_128_SHA (0xc011)
Cipher Suite: TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x0033)
Cipher Suite: TLS_DHE_DSS_WITH_AES_128_CBC_SHA (0x0032)
Cipher Suite: TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA (0x0045)
Cipher Suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x0039)
Cipher Suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA (0x0038)
Cipher Suite: TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA (0x0088)
Cipher Suite: TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (0x0016)
Cipher Suite: TLS_RSA_WITH_AES_128_CBC_SHA (0x002f)
Cipher Suite: TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x0041)
Cipher Suite: TLS_RSA_WITH_AES_256_CBC_SHA (0x0035)
Cipher Suite: TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x0084)
Cipher Suite: TLS_RSA_WITH_3DES_EDE_CBC_SHA (0x000a)
Cipher Suite: TLS_RSA_WITH_RC4_128_SHA (0x0005)
Cipher Suite: TLS_RSA_WITH_RC4_128_MD5 (0x0004)
Compression Methods Length: 1
Compression Methods (1 method)
Compression Method: null (0)
Extensions Length: 96
Extension: server_name
Extension: renegotiation_info
Extension: elliptic_curves
Extension: ec_point_formats
Extension: SessionTicket TLS
Extension: next_protocol_negotiation
Extension: status_request
Extension: signature_algorithms
<followed by>
Secure Sockets Layer
SSLv3 Record Layer: Handshake Protocol: Server Hello
Content Type: Handshake (22)
Version: SSL 3.0 (0x0300)
Length: 106
Handshake Protocol: Server Hello
Handshake Type: Server Hello (2)
Length: 102
Version: SSL 3.0 (0x0300)
Random
Session ID Length: 32
Session ID: c985d4892896c5d553215fe3e60a2d616994ede1ed6ad715...
Cipher Suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)
Compression Method: null (0)
Extensions Length: 30
Extension: server_name
Extension: renegotiation_info
Extension: ec_point_formats
Extension: next_protocol_negotiation
<followed by>
Secure Sockets Layer
SSLv3 Record Layer: Alert (Level: Fatal, Description: Handshake Failure)
Content Type: Alert (21)
Version: TLS 1.2 (0x0303)
Length: 2
Alert Message
Level: Fatal (2)
Description: Handshake Failure (40)
然后Firefox会显示ssl_error_cipher_disallowed_for_version。鉴于nginx似乎选择了SSLv3.0但是使用了TLS密码，我同意Firefox的错误，但为什么nginx会这样做？