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How can I Enable SSL 3 and TLS 1.0 in Firefox ESR 17.0.x ?

  • 6 replies
  • 11 have this problem
  • 10 views
  • Last reply by rahul.xeqtr

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Hi All,

I wanted to enable to SSl 3 and TLS 1.0 in my Firefox ESR 17.0.x web-browser, the changes that we can do in ESR 23 or higher versions are not working (like about:config solution)

I am using a file as security-prefs.js in following location c:\programe file(x86)\firefox\Mozilla Firefox\defaults\pref\ and I am not able to do so,

the contents of the security-prefs.js is as follows :-

pref("general.useragent.security",       "U");
	
pref("security.enable_ssl2",             false);
pref("security.enable_ssl3",             true);
pref("security.enable_tls",              true);
pref("security.enable_tls_session_tickets", true);
	
pref("security.ssl2.rc4_128", false);
pref("security.ssl2.rc2_128", false);
pref("security.ssl2.des_ede3_192", false);
pref("security.ssl2.des_64", false);
pref("security.ssl2.rc4_40", false);
pref("security.ssl2.rc2_40", false);
pref("security.ssl3.rsa_rc4_128_md5", true);
pref("security.ssl3.rsa_rc4_128_sha", true);
pref("security.ssl3.rsa_fips_des_ede3_sha", true);
pref("security.ssl3.rsa_des_ede3_sha", true);
pref("security.ssl3.rsa_fips_des_sha", true);
pref("security.ssl3.rsa_des_sha", true);
pref("security.ssl3.rsa_1024_rc4_56_sha", true);
pref("security.ssl3.rsa_1024_des_cbc_sha", true);
pref("security.ssl3.rsa_rc4_40_md5", true);
pref("security.ssl3.rsa_rc2_40_md5", true);
pref("security.ssl3.dhe_rsa_camellia_256_sha", true);
pref("security.ssl3.dhe_dss_camellia_256_sha", true);
pref("security.ssl3.rsa_camellia_256_sha", true);
pref("security.ssl3.dhe_rsa_camellia_128_sha", true);
pref("security.ssl3.dhe_dss_camellia_128_sha", true);
pref("security.ssl3.rsa_camellia_128_sha", true);
pref("security.ssl3.dhe_rsa_aes_256_sha", true);
pref("security.ssl3.dhe_dss_aes_256_sha", true);
pref("security.ssl3.rsa_aes_256_sha", true);
pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", true);
pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", true);
pref("security.ssl3.ecdhe_ecdsa_des_ede3_sha", true);
pref("security.ssl3.ecdhe_ecdsa_rc4_128_sha", true);
pref("security.ssl3.ecdhe_ecdsa_null_sha", true);
pref("security.ssl3.ecdhe_rsa_aes_256_sha", true);
pref("security.ssl3.ecdhe_rsa_aes_128_sha", true);
pref("security.ssl3.ecdhe_rsa_des_ede3_sha", true);
pref("security.ssl3.ecdhe_rsa_rc4_128_sha", true);
pref("security.ssl3.ecdhe_rsa_null_sha", true);
pref("security.ssl3.ecdh_ecdsa_aes_256_sha", true);
pref("security.ssl3.ecdh_ecdsa_aes_128_sha", true);
pref("security.ssl3.ecdh_ecdsa_des_ede3_sha", true);
pref("security.ssl3.ecdh_ecdsa_rc4_128_sha", true);
pref("security.ssl3.ecdh_ecdsa_null_sha", true);
pref("security.ssl3.ecdh_rsa_aes_256_sha", true);
pref("security.ssl3.ecdh_rsa_aes_128_sha", true);
pref("security.ssl3.ecdh_rsa_des_ede3_sha", true);
pref("security.ssl3.ecdh_rsa_rc4_128_sha", true);
pref("security.ssl3.ecdh_rsa_null_sha", true);
pref("security.ssl3.dhe_rsa_aes_128_sha", true);
pref("security.ssl3.dhe_dss_aes_128_sha", true);
pref("security.ssl3.rsa_aes_128_sha", true);
pref("security.ssl3.dhe_rsa_des_ede3_sha", true);
pref("security.ssl3.dhe_dss_des_ede3_sha", true);
pref("security.ssl3.dhe_rsa_des_sha", true);
pref("security.ssl3.dhe_dss_des_sha", true);
pref("security.ssl3.rsa_null_sha", true);
pref("security.ssl3.rsa_null_md5", true);
	
pref("security.default_personal_cert",   "Ask Every Time");
pref("security.ask_for_password",        0);
pref("security.password_lifetime",       30);
pref("security.warn_entering_secure",    false);
pref("security.warn_entering_weak",      true);
pref("security.warn_leaving_secure",     false);
pref("security.warn_viewing_mixed",      true);
pref("security.warn_submit_insecure",    false);
	
pref("security.OCSP.enabled", 1);
pref("security.OCSP.require", false);
Hi All, I wanted to enable to SSl 3 and TLS 1.0 in my Firefox ESR 17.0.x web-browser, the changes that we can do in ESR 23 or higher versions are not working (like about:config solution) I am using a file as security-prefs.js in following location c:\programe file(x86)\firefox\Mozilla Firefox\defaults\pref\ and I am not able to do so, the contents of the security-prefs.js is as follows :- <pre><nowiki>pref("general.useragent.security", "U"); pref("security.enable_ssl2", false); pref("security.enable_ssl3", true); pref("security.enable_tls", true); pref("security.enable_tls_session_tickets", true); pref("security.ssl2.rc4_128", false); pref("security.ssl2.rc2_128", false); pref("security.ssl2.des_ede3_192", false); pref("security.ssl2.des_64", false); pref("security.ssl2.rc4_40", false); pref("security.ssl2.rc2_40", false); pref("security.ssl3.rsa_rc4_128_md5", true); pref("security.ssl3.rsa_rc4_128_sha", true); pref("security.ssl3.rsa_fips_des_ede3_sha", true); pref("security.ssl3.rsa_des_ede3_sha", true); pref("security.ssl3.rsa_fips_des_sha", true); pref("security.ssl3.rsa_des_sha", true); pref("security.ssl3.rsa_1024_rc4_56_sha", true); pref("security.ssl3.rsa_1024_des_cbc_sha", true); pref("security.ssl3.rsa_rc4_40_md5", true); pref("security.ssl3.rsa_rc2_40_md5", true); pref("security.ssl3.dhe_rsa_camellia_256_sha", true); pref("security.ssl3.dhe_dss_camellia_256_sha", true); pref("security.ssl3.rsa_camellia_256_sha", true); pref("security.ssl3.dhe_rsa_camellia_128_sha", true); pref("security.ssl3.dhe_dss_camellia_128_sha", true); pref("security.ssl3.rsa_camellia_128_sha", true); pref("security.ssl3.dhe_rsa_aes_256_sha", true); pref("security.ssl3.dhe_dss_aes_256_sha", true); pref("security.ssl3.rsa_aes_256_sha", true); pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", true); pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", true); pref("security.ssl3.ecdhe_ecdsa_des_ede3_sha", true); pref("security.ssl3.ecdhe_ecdsa_rc4_128_sha", true); pref("security.ssl3.ecdhe_ecdsa_null_sha", true); pref("security.ssl3.ecdhe_rsa_aes_256_sha", true); pref("security.ssl3.ecdhe_rsa_aes_128_sha", true); pref("security.ssl3.ecdhe_rsa_des_ede3_sha", true); pref("security.ssl3.ecdhe_rsa_rc4_128_sha", true); pref("security.ssl3.ecdhe_rsa_null_sha", true); pref("security.ssl3.ecdh_ecdsa_aes_256_sha", true); pref("security.ssl3.ecdh_ecdsa_aes_128_sha", true); pref("security.ssl3.ecdh_ecdsa_des_ede3_sha", true); pref("security.ssl3.ecdh_ecdsa_rc4_128_sha", true); pref("security.ssl3.ecdh_ecdsa_null_sha", true); pref("security.ssl3.ecdh_rsa_aes_256_sha", true); pref("security.ssl3.ecdh_rsa_aes_128_sha", true); pref("security.ssl3.ecdh_rsa_des_ede3_sha", true); pref("security.ssl3.ecdh_rsa_rc4_128_sha", true); pref("security.ssl3.ecdh_rsa_null_sha", true); pref("security.ssl3.dhe_rsa_aes_128_sha", true); pref("security.ssl3.dhe_dss_aes_128_sha", true); pref("security.ssl3.rsa_aes_128_sha", true); pref("security.ssl3.dhe_rsa_des_ede3_sha", true); pref("security.ssl3.dhe_dss_des_ede3_sha", true); pref("security.ssl3.dhe_rsa_des_sha", true); pref("security.ssl3.dhe_dss_des_sha", true); pref("security.ssl3.rsa_null_sha", true); pref("security.ssl3.rsa_null_md5", true); pref("security.default_personal_cert", "Ask Every Time"); pref("security.ask_for_password", 0); pref("security.password_lifetime", 30); pref("security.warn_entering_secure", false); pref("security.warn_entering_weak", true); pref("security.warn_leaving_secure", false); pref("security.warn_viewing_mixed", true); pref("security.warn_submit_insecure", false); pref("security.OCSP.enabled", 1); pref("security.OCSP.require", false);</nowiki></pre>

Modified by cor-el

All Replies (6)

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I believe these were the default settings in Firefox 22 and earlier:

pref("security.enable_ssl3", true); 
pref("security.enable_tls", true);

Are you trying to lock them so they cannot be changed?

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@jscher :- yes these are the settings for Firefox ESR 17, I am not trying to lock them but trying to change them as to accept only SSL 3.0, TLS 1.0 or SSL 3.0 and TLS 1.0 both.

I am doing so by adding the above mentioned file to prefs folder of firefox in programe files

I am able to get security changes for SSL 3.0 and TLS 1.0 individually but not able to enable them in combo i.e. SSL 3.0 + TLS 1.0.

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I'm not sure what you mean. If both are set to true, doesn't that mean that both are enabled?

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Note that in later Firefox versions security.ssl3.rsa_fips_des_ede3_sha = false to prevent issues with TLS

These are no longer supported in current Firefox releases since a long time

pref("general.useragent.security",       "U");
pref("security.enable_ssl2",             false);
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@jscher :- yes if both are set to true that does mean that it should enable both but somewhere in the script I am making some mistake which i not allowing me to do so, that is where i need the help.

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@cor-el :- thanks for your comment, making security.ssl3.rsa_fips_des_ede3_sha as false helped me out