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Firefox Fixes: Don’t Give Up on the CMS

Before you give up on using the CMS in Firefox because of security encryption issues, although Chrome is a perfectly acceptable browser alternative, we have some fixes.

Firefox, versions 37, 38 and 39, is currently experiencing issues when connecting to SSL-enabled OU websites. This includes,,,,, and others. Upon visiting an affected site, users may receive an error message warning that the secure connection failed.

A change to Firefox’s default configuration will allow these sites to be displayed.

Firefox version 37: Type ‘about:config’ (without the quotes) in the address bar. Confirm that you’ll be careful and bypass the warning message if it appears. When you see the list of attributes, search for ‘security.tls.version.fallback-limit’ (without the quotes) in the search bar, double-click on the option, and set the value to ‘0’ (zero).* Once this option is configured, the affected sites should load properly.

Firefox version 38 and 39: follow the same instructions, except set security.tls.version.fallback-limit to 1.

Screen Shot of Firefox about:config window

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