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Please Help: Error code: SSL_ERROR_NO_CYPHER_OVERLAP

  • 2 replies
  • 1 has this problem
  • Last reply by cor-el

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I'm really, really hoping someone here can help me:

I've been trying to load my website: using the latest Firefox Browser V. 94.0.2. but continue to recveive the following message: (see below)

I have tried resetting my preferences to allow access. I can open my site in other browsers without a problem but really need to have clients access it from Firefox as well.

Please, please advise.

Thank you for your help!! Here is the error message:

Secure Connection Failed

An error occurred during a connection to Cannot communicate securely with peer: no common encryption algorithm(s).


   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

All Replies (2)

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Interesting. I use Firefox v54 as my default and had no problem. But when I used the current version, I got:

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;

Firefox will just show the SSL_ERROR_NO_CYPHER_OVERLAP error when encountered any site using the RC4 cipher.


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This website only works via HTTP and won't work if you force secure HTTPS.

You may have to create an 'Off' exception if you use HTTPS-Only.


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