AAA, NAC, Guest Access & BYOD

What can we do when we get "ssl_error_bad_mac_alert" while accessing clearpass using Firefox

When we try to access Clearpass using Firefox(version 28) we can see the below error message.

Cause:

Issues reported caused by Firefox using some specific cipher suites that aren't supported properly by the server.

We can follow the below steps for resolving this issue.

• In the Firefox browser’s address field, type “about:config”

.

• Click on “I’ll be careful, I promise”
• Search for ‘security.ssl3.dhe_rsa_des_ede3_sha’ 
• This will be set to ‘true’ in the fourth column 
• Change the value to ‘false’ by double clicking on fourth column 
• Reload the browser.