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I just updated to Firefox 26 beta 1 and now I can not get to many sites that are https

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This is the error that I am getting:

Secure Connection Failed

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

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hello ozman812, i've noticed you've many customized preferences regarding encryption - maybe one of them is causing this issue. please enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for all custom preferences (=shown in bold) starting with security. - right-click and reset such entries to their default value.

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You need to enable TLS 1.0 to make this page work.

  • security.tls.version.min = 1

Note that your System Details List shows that you have a user.js file in the profile folder to initialize some prefs on each start of Firefox.

The user.js file is only present if you or other software has created it, so normally it wouldn't be there. you can check its content with a plain text editor if you didn't create this file yourself.

The user.js file is read each time you start Firefox and initializes preferences to the value specified in this file, so preferences set via user.js can only be changed temporarily for the current session.