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Got SL_ERROR_NO_CYPHER_OVERLAP error

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Keep getting that error on several sites (Facebook, Youtube, etc), although I unistalled the latest version I had on my PC, and installed an ESR version (52.5.3). Any change to get rid of such annoying error ? Thanks AC

Keep getting that error on several sites (Facebook, Youtube, etc), although I unistalled the latest version I had on my PC, and installed an ESR version (52.5.3). Any change to get rid of such annoying error ? Thanks AC

Additional System Details

Installed Plug-ins

  • Shockwave Flash 24.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0

More Information

FredMcD
  • Top 10 Contributor
4222 solutions 58926 answers

Helpful Reply

SSL_ERROR_NO_CYPHER_OVERLAP Your server apparently doesn't offer any cipher suites necessary to establish a secure https connection that are supported in Firefox. You can check what kind of cipher suites Firefox can make use of by visiting; https://www.ssllabs.com/ssltest/viewMyClient.html

'''SSL_ERROR_NO_CYPHER_OVERLAP''' Your server apparently doesn't offer any cipher suites necessary to establish a secure https connection that are supported in Firefox. You can check what kind of cipher suites Firefox can make use of by visiting; https://www.ssllabs.com/ssltest/viewMyClient.html
FredMcD
  • Top 10 Contributor
4222 solutions 58926 answers

Separate Security Issue: Update your Flash Player Note: Windows users should download the ActiveX for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX.

Flash Player Version: Version 28.0.0.137

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

Separate Security Issue: Update your Flash Player '''Note: Windows users''' should download the '''ActiveX''' for ''Internet Explorer.'' '''and''' the '''plugin''' for ''Plugin-based browsers'' (like Firefox). '''Note: Windows 8 and Windows 10''' have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX. Flash Player Version: '''Version 28.0.0.137 ''' https://get.adobe.com/flashplayer/ Direct link scans current system and browser '''Note: Other software''' is offered in the download. <Windows Only> https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) '''Note: Other software''' is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

Question owner

FredMcD said

SSL_ERROR_NO_CYPHER_OVERLAP Your server apparently doesn't offer any cipher suites necessary to establish a secure https connection that are supported in Firefox. You can check what kind of cipher suites Firefox can make use of by visiting; https://www.ssllabs.com/ssltest/viewMyClient.html

It looks like it's a firewall related problem:

Protocols TLS 1.3 No TLS 1.2 Firewall TLS 1.1 Firewall TLS 1.0 Firewall SSL 3 Firewall SSL 2 Firewall

and, so far, I guess I can't do anything by my (browser) side,,,,,is it correct..?! Thanks

''FredMcD [[#answer-1066860|said]]'' <blockquote> '''SSL_ERROR_NO_CYPHER_OVERLAP''' Your server apparently doesn't offer any cipher suites necessary to establish a secure https connection that are supported in Firefox. You can check what kind of cipher suites Firefox can make use of by visiting; https://www.ssllabs.com/ssltest/viewMyClient.html </blockquote> It looks like it's a firewall related problem: Protocols TLS 1.3 No TLS 1.2 Firewall TLS 1.1 Firewall TLS 1.0 Firewall SSL 3 Firewall SSL 2 Firewall and, so far, I guess I can't do anything by my (browser) side,,,,,is it correct..?! Thanks
FredMcD
  • Top 10 Contributor
4222 solutions 58926 answers

I called for more help.

I called for more help.
cor-el
  • Top 10 Contributor
  • Moderator
17413 solutions 157295 answers
Is your security software covered: *https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER