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Firefox refuses to connect to my website but does not open an error page?

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When I try to visit a website for which I am a system administrator (hawkai.co), Firefox does not connect. There is no error message accompanying this behavior, the URL field simply gets erased as if I had not typed anything at all. All other websites work fine. This website loads perfectly normally on all other browsers. Moreover, the issue persists across multiple computers.

This started earlier today, after I was working to enable SSL and force all requests to HTTPS. During testing, I visited my site and received a message along the lines of 'The owner of hawkai.co has configured their website improperly.' The site was trying to access https://www.hawkai.co when the security certificate was valid for https://hawkai.co only. I have since fixed this configuration.

Because this issue is occurring across multiple machines, I am very concerned that my site is blocked for Firefox users globally, which is a critical emergency for me. Any help would be appreciated.

When I try to visit a website for which I am a system administrator (hawkai.co), Firefox does not connect. There is no error message accompanying this behavior, the URL field simply gets erased as if I had not typed anything at all. All other websites work fine. This website loads perfectly normally on all other browsers. Moreover, the issue persists across multiple computers. This started earlier today, after I was working to enable SSL and force all requests to HTTPS. During testing, I visited my site and received a message along the lines of 'The owner of hawkai.co has configured their website improperly.' The site was trying to access https://www.hawkai.co when the security certificate was valid for https://hawkai.co only. I have since fixed this configuration. Because this issue is occurring across multiple machines, I am very concerned that my site is blocked for Firefox users globally, which is a critical emergency for me. Any help would be appreciated.

选择的解决方案

This issue was caused by forcing HTTP2, which I have solved by removing the HTTP2 declaration from my server config. I diagnosed from the results of the Qualsys SSL server test: https://www.ssllabs.com/ssltest/analyze.html?d=hawkai.co&s=45.79.162.224

From the results I can see: Server negotiated HTTP/2 with blacklisted suite RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA | ECDH secp256r1

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补充系统细节

已安装的插件

  • Adobe PDF Plug-In For Firefox and Netscape
  • Citrix ICA Client Plugin (Win32)
  • DivX OVS Helper Plug-in
  • DivX Web Player version 2.1.0.900
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Office Authorization plug-in for NPAPI browsers
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • BlackBerry WebSL Browser Plug-In
  • Shockwave Flash 21.0 r0
  • 5.1.41212.0
  • NPWLPG
  • iTunes Detector Plug-in

应用程序

  • 用户代理(User Agent): Mozilla/5.0 (Windows NT 6.1; rv:47.0) Gecko/20100101 Firefox/47.0

详细信息

选择的解决方案

This issue was caused by forcing HTTP2, which I have solved by removing the HTTP2 declaration from my server config. I diagnosed from the results of the Qualsys SSL server test: https://www.ssllabs.com/ssltest/analyze.html?d=hawkai.co&s=45.79.162.224

From the results I can see: Server negotiated HTTP/2 with blacklisted suite RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA | ECDH secp256r1

This issue was caused by forcing HTTP2, which I have solved by removing the HTTP2 declaration from my server config. I diagnosed from the results of the Qualsys SSL server test: https://www.ssllabs.com/ssltest/analyze.html?d=hawkai.co&s=45.79.162.224 From the results I can see: Server negotiated HTTP/2 with blacklisted suite RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA | ECDH secp256r1