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Problems with FF ESR resulting from http2 and SSL

Posted

Since my website (https://www.der-bank-blog.de) is configured to http2, users using FF ESR cannot access anymore. They just see a blank screen.

Other browsers and "normal" FF are working fine.

I seems to stay in connection with the cipher Suite. https://bugzilla.mozilla.org/show_bug.cgi?id=975832

User could workarround by changing "aes_256" in the about:config view.

But I need a solution for the backend to avoid loosing users, trying to reach the site e.g. via Google Search.

Any ideas are greatly apreciated

Cheers from Germany

Since my website (https://www.der-bank-blog.de) is configured to http2, users using FF ESR cannot access anymore. They just see a blank screen. Other browsers and "normal" FF are working fine. I seems to stay in connection with the cipher Suite. https://bugzilla.mozilla.org/show_bug.cgi?id=975832 User could workarround by changing "aes_256" in the about:config view. But I need a solution for the backend to avoid loosing users, trying to reach the site e.g. via Google Search. Any ideas are greatly apreciated Cheers from Germany

Additional System Details

Installed Plug-ins

  • Adobe PDF Plug-In For Firefox and Netscape 11.0.19
  • A plugin to detect whether the Adobe Application Manager is installed on this machine.
  • Citrix Online App Detector Plugin
  • Version 5.41.3.0
  • Google Update
  • Intel web components for Intel® Identity Protection Technology
  • Intel web components updater - Installs and updates the Intel web components
  • Office Authorization plug-in for NPAPI browsers
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • NPWLPG
  • Shockwave Flash 24.0 r0
  • 5.1.50901.0
  • VLC media player Web Plugin

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0

More Information

FredMcD
  • Top 10 Contributor
4245 solutions 59390 answers

Blank page confirmed using ESR 45.7.0

Site opens properly using Win IE.

I called for more help.

Blank page confirmed using ESR 45.7.0 Site opens properly using Win IE. I called for more help.
cor-el
  • Top 10 Contributor
  • Moderator
17468 solutions 157849 answers

Helpful Reply

I have to disable security.ssl3.ecdhe_rsa_aes_128_gcm_sha256 (false) to make Firefox open the page, so you would have to disable this cipher suites on the server to make it work in Firefox 45 ESR.

Tools -> Page Info -> Secrity shows:

Connection Encrypted (TLS_RSA_WITH_AES_256_CBC_SHA, 256 bit keys, TLS 1.2)

I have to disable security.ssl3.ecdhe_rsa_aes_128_gcm_sha256 (false) to make Firefox open the page, so you would have to disable this cipher suites on the server to make it work in Firefox 45 ESR. Tools -> Page Info -> Secrity shows: Connection Encrypted (TLS_RSA_WITH_AES_256_CBC_SHA, 256 bit keys, TLS 1.2) ----- *https://bugzilla.mozilla.org/show_bug.cgi?id=975832#c12

Modified by cor-el