{"id":6339,"date":"2025-01-07T17:38:07","date_gmt":"2025-01-07T17:38:07","guid":{"rendered":"https:\/\/howtogeek.blog\/ja\/?p=6339"},"modified":"2025-01-07T17:38:07","modified_gmt":"2025-01-07T17:38:07","slug":"fixing-secerrorunknownissuer-error-in-firefox-browser","status":"publish","type":"post","link":"https:\/\/howtogeek.blog\/ja\/fixing-secerrorunknownissuer-error-in-firefox-browser\/","title":{"rendered":"Firefox \u30d6\u30e9\u30a6\u30b6\u306e SEC_ERROR_UNKNOWN_ISSUER \u30a8\u30e9\u30fc\u306e\u4fee\u6b63"},"content":{"rendered":"<p>\u4e16\u754c\u4e2d\u306e Web \u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u4e2d\u3067\u4eba\u6c17\u306e\u3042\u308b Mozilla Firefox \u306e\u4e16\u754c\u3078\u3088\u3046\u3053\u305d\u3002\u4fe1\u983c\u6027\u306e\u8a55\u5224\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u7279\u5b9a\u306e Web \u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u30a4\u30e9\u30a4\u30e9\u3059\u308b\u554f\u984c\u306b\u906d\u9047\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u983b\u7e41\u306b\u767a\u751f\u3059\u308b\u30a8\u30e9\u30fc\u306e 1 \u3064\u304c<strong>SEC_ERROR_UNKNOWN_ISSUER<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u7279\u5b9a\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u554f\u984c\u306f\u3001\u901a\u5e38\u3001Firefox \u304c Web \u30b5\u30a4\u30c8\u306e\u5185\u90e8\u8a3c\u660e\u6a5f\u95a2 (CA) \u306b\u3088\u3063\u3066\u767a\u884c\u3055\u308c\u305f SSL \u8a3c\u660e\u66f8\u3092\u8a8d\u8b58\u307e\u305f\u306f\u4fe1\u983c\u3067\u304d\u306a\u3044\u305f\u3081\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u5fc3\u914d\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u614c\u3066\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u554f\u984c\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u7c21\u5358\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u624b\u9806\u3067\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"SEC_ERROR_\u4e0d\u660e\u306a\u767a\u884c\u8005\" class=\"wp-image\" decoding=\"async\" height=\"197\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2025\/01\/SEC_ERROR_UNKNOWN_ISSUER.webp\" title=\"SEC_ERROR_\u4e0d\u660e\u306a\u767a\u884c\u8005\" width=\"800\"\/><\/figure>\n<p>\u3057\u304b\u3057\u3001Firefox \u5185\u3067\u3053\u306e\u554f\u984c\u3092\u52b9\u679c\u7684\u306b\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3057\u3087\u3046\u304b? \u5b9f\u7528\u7684\u306a\u56de\u907f\u7b56\u3092\u3044\u304f\u3064\u304b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2 id=\"workarounds-to-resolve-sec-error-unknown-issuer-error-on-firefox-web-browser\">Firefox \u3067 SEC_ERROR_UNKNOWN_ISSUER \u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b\u52b9\u679c\u7684\u306a\u65b9\u6cd5<\/h2>\n<p>\u5e78\u3044\u306a\u3053\u3068\u306b\u3001Mozilla Firefox \u3067\u306e SSL \u8a3c\u660e\u66f8\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306e\u306f\u305d\u308c\u307b\u3069\u96e3\u3057\u3044\u3053\u3068\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8a66\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u5b9f\u7528\u7684\u306a\u89e3\u6c7a\u7b56\u3092\u3044\u304f\u3064\u304b\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image\"><img alt=\"Firefox Web \u30d6\u30e9\u30a6\u30b6\u3067 SEC_ERROR_UNKNOWN_ISSUER \u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306e\u56de\u907f\u7b56\" class=\"wp-image\" decoding=\"async\" height=\"540\" loading=\"lazy\" src=\"https:\/\/cdn.howtogeek.blog\/wp-content\/uploads\/2025\/01\/Workarounds-to-Resolve-SEC_ERROR_UNKNOWN_ISSUER-Error-on-Firefox-Web-Browser.webp\" title=\"Firefox Web \u30d6\u30e9\u30a6\u30b6\u3067 SEC_ERROR_UNKNOWN_ISSUER \u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306e\u56de\u907f\u7b56\" width=\"800\"\/><figcaption>\u753b\u50cf\u30af\u30ec\u30b8\u30c3\u30c8: Mozilla<\/figcaption><\/figure>\n<h3 id=\"1-do-a-virus-scan-on-your-system\">1. \u30b7\u30b9\u30c6\u30e0\u3067\u30a6\u30a4\u30eb\u30b9\u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3059\u308b<\/h3>\n<p>\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u8d77\u52d5\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u3092\u5fb9\u5e95\u7684\u306b\u30b9\u30ad\u30e3\u30f3\u3057\u307e\u3059\u3002\u691c\u51fa\u3055\u308c\u305f\u30a6\u30a4\u30eb\u30b9\u304c\u524a\u9664\u3055\u308c\u305f\u3089\u3001\u30c7\u30d0\u30a4\u30b9\u3092\u518d\u8d77\u52d5\u3057\u3066\u5909\u66f4\u3092\u9069\u7528\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001Mozilla Firefox \u3067 Web \u30b5\u30a4\u30c8\u3092\u518d\u8aad\u307f\u8fbc\u307f\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u554f\u984c\u304c\u89e3\u6c7a\u3059\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<h3 id=\"2-verify-firefox-certificate-authorities\">2. Firefox\u306e\u8a3c\u660e\u6a5f\u95a2\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>Firefox \u3067\u8a3c\u660e\u6a5f\u95a2\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u53f3\u4e0a\u9685\u306b\u3042\u308b 3 \u672c\u306e\u6c34\u5e73\u7dda\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001<strong>\u74b0\u5883\u8a2d\u5b9a<\/strong>\u307e\u305f\u306f<strong>\u30aa\u30d7\u30b7\u30e7\u30f3 \u3092<\/strong>\u9078\u629e\u3057\u307e\u3059\u3002\u307e\u305f\u306f\u3001<code>about:preferences<\/code>\u30a2\u30c9\u30ec\u30b9 \u30d0\u30fc\u306b\u5165\u529b\u3057\u307e\u3059\u3002\u691c\u7d22\u30d0\u30fc\u306b\u300ccert\u300d\u3068\u5165\u529b\u3057\u3001<strong>\u8a3c\u660e\u66f8\u306e\u8868\u793a<\/strong>\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<strong>\u8a3c\u660e\u6a5f\u95a2<\/strong>\u30bf\u30d6\u306b\u79fb\u52d5\u3057\u3066\u3001Web \u30b5\u30a4\u30c8\u306e\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3057\u305f\u8a3c\u660e\u6a5f\u95a2\u3092\u691c\u7d22\u3057\u307e\u3059\u3002\u8a3c\u660e\u66f8\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306f\u3001\u8a3c\u660e\u6a5f\u95a2\u306b\u7c21\u5358\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u72b6\u6cc1\u304c\u660e\u3089\u304b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"3-import-signing-certificate\">3. \u5fc5\u8981\u306a\u7f72\u540d\u8a3c\u660e\u66f8\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b<\/h3>\n<p>\u3053\u306e\u89e3\u6c7a\u7b56\u306b\u306f\u3001\u95a2\u9023\u3059\u308b SSL \u8a3c\u660e\u66f8\u304c\u5fc5\u8981\u3067\u3059\u3002<strong>\u300c\u8a2d\u5b9a\u300d<\/strong>\u306b\u79fb\u52d5\u3057\u3001<strong>\u300c\u8a3c\u660e\u66f8\u306e\u8868\u793a\u300d<\/strong>\u306b\u79fb\u52d5\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u300c<strong>\u8a8d\u8a3c\u5c40\u300d<\/strong>\u30bf\u30d6\u3067\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304b\u3089\u7f72\u540d\u8a3c\u660e\u66f8\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u3066\u3001Firefox \u304c\u305d\u308c\u3092\u8a8d\u8b58\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"4-add-the-website-as-an-exception\">4. \u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4f8b\u5916\u3068\u3057\u3066\u8ffd\u52a0\u3059\u308b<\/h3>\n<p>\u30b5\u30a4\u30c8\u306b\u81ea\u4fe1\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4f8b\u5916\u3068\u3057\u3066\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3001\u30a8\u30e9\u30fc \u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u305f\u3089\u3001<strong>[\u8a73\u7d30\u8a2d\u5b9a]<\/strong>\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002\u6b21\u306b\u3001<strong>[\u4f8b\u5916\u306e\u8ffd\u52a0]<\/strong>\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001<strong>[\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4f8b\u5916\u306e\u78ba\u8a8d] \u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/strong>\u3053\u308c\u306b\u3088\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f\u30a2\u30af\u30bb\u30b9\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"5-set-security-certificates-value-to-true\">5. Firefox\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a3c\u660e\u66f8\u3092\u6709\u52b9\u306b\u3059\u308b<\/h3>\n<p>URL \u30d0\u30fc\u306b \u3068\u5165\u529b\u3057\u3066<strong>Enter \u30ad\u30fc\u3092<\/strong><code>about:config<\/code>\u62bc\u3057\u307e\u3059\u3002\u8b66\u544a\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<strong>\u30ea\u30b9\u30af\u3092\u53d7\u3051\u5165\u308c\u3066\u7d9a\u884c \u3092<\/strong>\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002\u6b21\u306b \u3092\u691c\u7d22\u3057\u307e\u3059\u3002\u3053\u308c\u306f<strong>False<\/strong>\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5024\u3092<strong>True<\/strong>\u306b\u5909\u66f4\u3057\u3066\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba \u30eb\u30fc\u30c8\u3092\u6709\u52b9\u306b\u3057\u3001SSL \u63a5\u7d9a\u3092\u6539\u5584\u3057\u307e\u3059\u3002<strong><\/strong><strong><\/strong><code>security.enterprise_roots.enabled<\/code><strong><\/strong><strong><\/strong><\/p>\n<p>\u3053\u308c\u3089\u306e\u65b9\u6cd5\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001SEC_ERROR_UNKNOWN_ISSUER \u30a8\u30e9\u30fc\u3092\u52b9\u679c\u7684\u306b\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u3066\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002\u9069\u5207\u306a\u30c4\u30fc\u30eb\u3068\u77e5\u8b58\u304c\u3042\u308c\u3070\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u6a5f\u80fd\u3092\u7dad\u6301\u3057\u3001\u30b7\u30fc\u30e0\u30ec\u30b9\u306a Web \u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u697d\u3057\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u8ffd\u52a0\u306e\u6d1e\u5bdf<\/h3>\n<h4><strong>1. SEC_ERROR_UNKNOWN_ISSUER \u30a8\u30e9\u30fc\u306f\u3069\u3046\u3044\u3046\u610f\u5473\u3067\u3059\u304b?<\/strong><\/h4>\n<p>SEC_ERROR_UNKNOWN_ISSUER \u30a8\u30e9\u30fc\u306f\u3001Mozilla Firefox \u304c Web \u30b5\u30a4\u30c8\u306b\u3088\u3063\u3066\u63d0\u793a\u3055\u308c\u305f SSL \u8a3c\u660e\u66f8\u3092\u8a8d\u8b58\u3057\u306a\u3044\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u8a3c\u660e\u66f8\u304c\u81ea\u5df1\u7f72\u540d\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u4fe1\u983c\u3067\u304d\u306a\u3044\u8a3c\u660e\u6a5f\u95a2\u306b\u3088\u3063\u3066\u767a\u884c\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h4><strong>2. \u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e SSL \u8a3c\u660e\u66f8\u304c\u6709\u52b9\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b?<\/strong><\/h4>\n<p>Firefox \u306e\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u306b\u3042\u308b\u5357\u4eac\u9320\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u3001Web \u30b5\u30a4\u30c8\u306e SSL \u8a3c\u660e\u66f8\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u305d\u3053\u304b\u3089\u8a3c\u660e\u66f8\u306e\u8a73\u7d30\u3092\u8868\u793a\u3057\u3066\u3001\u8a3c\u660e\u66f8\u304c\u6709\u52b9\u3067\u3042\u308a\u3001\u4fe1\u983c\u3067\u304d\u308b\u6a5f\u95a2\u306b\u3088\u3063\u3066\u767a\u884c\u3055\u308c\u305f\u3082\u306e\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4><strong>3. SEC_ERROR_UNKNOWN_ISSUER \u30a8\u30e9\u30fc\u306e\u4f8b\u5916\u3092\u8ffd\u52a0\u3057\u3066\u3082\u5b89\u5168\u3067\u3059\u304b?<\/strong><\/h4>\n<p>\u4f8b\u5916\u3092\u8ffd\u52a0\u3059\u308b\u5834\u5408\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002Web \u30b5\u30a4\u30c8\u3092\u4fe1\u983c\u3057\u3001\u305d\u306e\u6b63\u5f53\u6027\u3092\u78ba\u8a8d\u3057\u305f\u5834\u5408\u306f\u5b89\u5168\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u306a\u3058\u307f\u306e\u306a\u3044\u30b5\u30a4\u30c8\u3067\u3053\u308c\u3092\u884c\u3046\u3068\u3001\u30c7\u30fc\u30bf\u304c\u5371\u967a\u306b\u3055\u3089\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a class=\"xiaomi\" href=\"https:\/\/www.windowsdispatch.com\/sec-error-unknown-issuer-firefox-error\/\" rel=\"noopener noreferrer nofollow\" target=\"_blank\">\u51fa\u5178\u3068\u753b\u50cf<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e16\u754c\u4e2d\u306e Web \u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u4e2d\u3067\u4eba\u6c17\u306e\u3042\u308b Mozilla Firefox \u306e\u4e16\u754c\u3078\u3088\u3046\u3053\u305d\u3002\u4fe1\u983c\u6027\u306e\u8a55\u5224\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u7279\u5b9a\u306e Web \u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u30a4\u30e9\u30a4\u30e9\u3059\u308b\u554f\u984c\u306b\u906d\u9047\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u983b\u7e41\u306b\u767a\u751f\u3059\u308b\u30a8\u30e9\u30fc\u306e 1 \u3064\u304cSEC_ERROR_UNKNOWN_ISSUER\u3067\u3059\u3002 \u3053\u306e\u7279\u5b9a\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u554f\u984c\u306f\u3001\u901a\u5e38\u3001Firefox \u304c Web \u30b5\u30a4\u30c8\u306e\u5185\u90e8\u8a3c\u660e\u6a5f\u95a2 (CA) \u306b\u3088\u3063\u3066\u767a\u884c\u3055\u308c\u305f SSL \u8a3c\u660e\u66f8\u3092\u8a8d\u8b58\u307e\u305f\u306f\u4fe1\u983c\u3067\u304d\u306a\u3044\u305f\u3081\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u5fc3\u914d\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u614c\u3066\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u554f\u984c\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u7c21\u5358\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u624b\u9806\u3067\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002 \u3057\u304b\u3057\u3001Firefox \u5185\u3067\u3053\u306e\u554f\u984c\u3092\u52b9\u679c\u7684\u306b\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3057\u3087\u3046\u304b? \u5b9f\u7528\u7684\u306a\u56de\u907f\u7b56\u3092\u3044\u304f\u3064\u304b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002 Firefox \u3067 SEC_ERROR_UNKNOWN_ISSUER \u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b\u52b9\u679c\u7684\u306a\u65b9\u6cd5 \u5e78\u3044\u306a\u3053\u3068\u306b\u3001Mozilla Firefox \u3067\u306e SSL \u8a3c\u660e\u66f8\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306e\u306f\u305d\u308c\u307b\u3069\u96e3\u3057\u3044\u3053\u3068\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8a66\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u5b9f\u7528\u7684\u306a\u89e3\u6c7a\u7b56\u3092\u3044\u304f\u3064\u304b\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u753b\u50cf\u30af\u30ec\u30b8\u30c3\u30c8: Mozilla 1. \u30b7\u30b9\u30c6\u30e0\u3067\u30a6\u30a4\u30eb\u30b9\u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3059\u308b \u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u8d77\u52d5\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u3092\u5fb9\u5e95\u7684\u306b\u30b9\u30ad\u30e3\u30f3\u3057\u307e\u3059\u3002\u691c\u51fa\u3055\u308c\u305f\u30a6\u30a4\u30eb\u30b9\u304c\u524a\u9664\u3055\u308c\u305f\u3089\u3001\u30c7\u30d0\u30a4\u30b9\u3092\u518d\u8d77\u52d5\u3057\u3066\u5909\u66f4\u3092\u9069\u7528\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001Mozilla Firefox \u3067 Web \u30b5\u30a4\u30c8\u3092\u518d\u8aad\u307f\u8fbc\u307f\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u554f\u984c\u304c\u89e3\u6c7a\u3059\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002 2. Firefox\u306e\u8a3c\u660e\u6a5f\u95a2\u3092\u78ba\u8a8d\u3059\u308b Firefox \u3067\u8a3c\u660e\u6a5f\u95a2\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u53f3\u4e0a\u9685\u306b\u3042\u308b 3 \u672c\u306e\u6c34\u5e73\u7dda\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001\u74b0\u5883\u8a2d\u5b9a\u307e\u305f\u306f\u30aa\u30d7\u30b7\u30e7\u30f3 \u3092\u9078\u629e\u3057\u307e\u3059\u3002\u307e\u305f\u306f\u3001about:preferences\u30a2\u30c9\u30ec\u30b9 \u30d0\u30fc\u306b\u5165\u529b\u3057\u307e\u3059\u3002\u691c\u7d22\u30d0\u30fc\u306b\u300ccert\u300d\u3068\u5165\u529b\u3057\u3001\u8a3c\u660e\u66f8\u306e\u8868\u793a\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002\u8a3c\u660e\u6a5f\u95a2\u30bf\u30d6\u306b\u79fb\u52d5\u3057\u3066\u3001Web \u30b5\u30a4\u30c8\u306e\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3057\u305f\u8a3c\u660e\u6a5f\u95a2\u3092\u691c\u7d22\u3057\u307e\u3059\u3002\u8a3c\u660e\u66f8\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306f\u3001\u8a3c\u660e\u6a5f\u95a2\u306b\u7c21\u5358\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u72b6\u6cc1\u304c\u660e\u3089\u304b\u306b\u306a\u308a\u307e\u3059\u3002 3. \u5fc5\u8981\u306a\u7f72\u540d\u8a3c\u660e\u66f8\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b \u3053\u306e\u89e3\u6c7a\u7b56\u306b\u306f\u3001\u95a2\u9023\u3059\u308b SSL \u8a3c\u660e\u66f8\u304c\u5fc5\u8981\u3067\u3059\u3002\u300c\u8a2d\u5b9a\u300d\u306b\u79fb\u52d5\u3057\u3001\u300c\u8a3c\u660e\u66f8\u306e\u8868\u793a\u300d\u306b\u79fb\u52d5\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u300c\u8a8d\u8a3c\u5c40\u300d\u30bf\u30d6\u3067\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304b\u3089\u7f72\u540d\u8a3c\u660e\u66f8\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u3066\u3001Firefox \u304c\u305d\u308c\u3092\u8a8d\u8b58\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[19],"class_list":["post-6339","post","type-post","status-publish","format-standard","hentry","category-how-to","tag-windows"],"acf":[],"_links":{"self":[{"href":"https:\/\/howtogeek.blog\/ja\/wp-json\/wp\/v2\/posts\/6339","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/howtogeek.blog\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/howtogeek.blog\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/howtogeek.blog\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/howtogeek.blog\/ja\/wp-json\/wp\/v2\/comments?post=6339"}],"version-history":[{"count":1,"href":"https:\/\/howtogeek.blog\/ja\/wp-json\/wp\/v2\/posts\/6339\/revisions"}],"predecessor-version":[{"id":6340,"href":"https:\/\/howtogeek.blog\/ja\/wp-json\/wp\/v2\/posts\/6339\/revisions\/6340"}],"wp:attachment":[{"href":"https:\/\/howtogeek.blog\/ja\/wp-json\/wp\/v2\/media?parent=6339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/howtogeek.blog\/ja\/wp-json\/wp\/v2\/categories?post=6339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/howtogeek.blog\/ja\/wp-json\/wp\/v2\/tags?post=6339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}