{"id":716,"date":"2015-07-03T16:18:59","date_gmt":"2015-07-03T16:18:59","guid":{"rendered":"http:\/\/eltonoverip.com\/blog\/?p=716"},"modified":"2015-07-14T20:50:14","modified_gmt":"2015-07-14T20:50:14","slug":"firefox-39-0-ssl-error-weak-ephemeral-diffie-hellman-key","status":"publish","type":"post","link":"https:\/\/eltonoverip.com\/blog\/2015\/07\/firefox-39-0-ssl-error-weak-ephemeral-diffie-hellman-key\/","title":{"rendered":"Firefox 39.0 SSL Error: Weak Ephemeral Diffie-Hellman key"},"content":{"rendered":"<p>Recently updated Firefox to version 39.0 and tried to access Call Manager and Contact Center Express. Got the following Firefox error:<\/p>\n<p>SSL received a weak ephemeral Diffie-Hellman key in Server Key Exchange handshake message. (Error code: ssl_error_weak_server_ephemeral_dh_key)<\/p>\n<p>Solution documented in <a href=\"https:\/\/support.mozilla.org\/en-US\/questions\/1066238\">https:\/\/support.mozilla.org\/en-US\/questions\/1066238<\/a><\/p>\n<p>Explanation: <a href=\"http:\/\/arstechnica.com\/security\/2015\/05\/https-crippling-attack-threatens-tens-of-thousands-of-web-and-mail-servers\/\">http:\/\/arstechnica.com\/security\/2015\/05\/https-crippling-attack-threatens-tens-of-thousands-of-web-and-mail-servers\/<\/a><\/p>\n<ol>\n<li>In Firefox, Enter &#8220;about:config&#8221; in the URL field and press enter.<\/li>\n<li>Accept the &#8220;This might void your warranty!&#8221; warning by clicking &#8220;I&#8217;ll be careful, I promise!&#8221; button.<\/li>\n<li>In the search field, enter &#8220;security.ssl3.dhe_rsa_aes&#8221;.<\/li>\n<li>Double click each result (128 SHA and 256 SHA) to toggle the Value to &#8220;false&#8221;.<\/li>\n<\/ol>\n<p>No need to close and reopen the browser.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Recently updated Firefox to version 39.0 and tried to access Call Manager and Contact Center Express. Got the following Firefox error: SSL received a weak ephemeral Diffie-Hellman key in Server Key Exchange handshake message. (Error code: ssl_error_weak_server_ephemeral_dh_key) Solution documented in https:\/\/support.mozilla.org\/en-US\/questions\/1066238 Explanation: http:\/\/arstechnica.com\/security\/2015\/05\/https-crippling-attack-threatens-tens-of-thousands-of-web-and-mail-servers\/ In Firefox, Enter &#8220;about:config&#8221; in the URL field and press enter. Accept [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,21,19],"tags":[],"class_list":["post-716","post","type-post","status-publish","format-standard","hentry","category-firefox","category-security","category-web-browser"],"_links":{"self":[{"href":"https:\/\/eltonoverip.com\/blog\/wp-json\/wp\/v2\/posts\/716","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eltonoverip.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eltonoverip.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eltonoverip.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eltonoverip.com\/blog\/wp-json\/wp\/v2\/comments?post=716"}],"version-history":[{"count":2,"href":"https:\/\/eltonoverip.com\/blog\/wp-json\/wp\/v2\/posts\/716\/revisions"}],"predecessor-version":[{"id":718,"href":"https:\/\/eltonoverip.com\/blog\/wp-json\/wp\/v2\/posts\/716\/revisions\/718"}],"wp:attachment":[{"href":"https:\/\/eltonoverip.com\/blog\/wp-json\/wp\/v2\/media?parent=716"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eltonoverip.com\/blog\/wp-json\/wp\/v2\/categories?post=716"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eltonoverip.com\/blog\/wp-json\/wp\/v2\/tags?post=716"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}