Member Avatar for premdparmar

I'm facing an SSL-related issue in Firefox with the 'SSL_ERROR_NO_CYPHER_OVERLAP' error. It seems there's a problem with encryption algorithms between the browser and the server, hindering the establishment of a secure connection. Any guidance or solutions would be appreciated.

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JPMehta commented: ssl_error_no_cypher_overlap error is common issue which occurs whenever the site you are accessing doesn't have updated ssl certificate. +0

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Member Avatar for rproffitt

This is now something we might see if some site is not maintained. You contact the web master and ask them to fix it.

The second reason could be trying to use a very old version of Firefox on say Windows XP. You left out what Firefox version so do try it on a current smartphone and PC that is up to date.

Member Avatar for Dani

Does the web server have an updated SSL certificate installed?

Member Avatar for sankut

If you're encountering the 'SSL_ERROR_NO_CYPHER_OVERLAP' error in Firefox, it indicates a failure to establish a secure connection due to an encryption algorithm mismatch between the browser and the server. Here are steps to resolve the issue:

Update Firefox: Ensure your browser is updated to the latest version, as newer versions often include fixes for security-related issues.

Check Date and Time Settings: Ensure that the date and time on your device are set correctly, as SSL certificates rely on accurate time settings.

Reset Firefox Settings: Open a new Firefox window and type 'about:support' in the address bar. Click 'Refresh Firefox' to reset Firefox settings to their default.

Review Security Software: Some security software may interfere with SSL connections. Temporarily disable or adjust the settings to test if it resolves the issue.

Check SSL/TLS Settings: In Firefox, go to 'Preferences' > 'Privacy & Security' > 'Security.' Ensure that SSL and TLS options are enabled.

If the problem persists, consider consulting Firefox forums or support for further assistance or you can read this full guide here https://www.ssl2buy.com/wiki/fix-ssl_error_no_cypher_overlap-error-in-firefox

Member Avatar for Dani

Sankut, are you sure the problem is with the web browser, and not the web server?

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