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Firefox error code ssl_error_bad_cert_domain

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By Genesis and SheilaUpdated on June 4th, 2022

What is 'Firefox error code ssl_error_bad_cert_domain'?

"Firefox error code ssl_error_bad_cert_domain" is an error, which may indicate that the host or domain is still using an old certificate other than what is issued to the user.

How can you fix 'Firefox error code ssl_error_bad_cert_domain'?

Some of the common fixes include:

  • Adding the website to Security Exception
  • Configuring the Date and Time
  • Disabling security.ssl3.dhe_rsa_aes_128_sha
  • Clearing the cache

Please see our in-depth walk-through solutions below.

1. Add Website to Security Exception

"Firefox error code ssl_error_bad_cert_domain" could appear when you access a website that is risky. However, if this website is safe for you to access, add it to your Security Exception. To add it, see instructions below.

Add Website to Security Exception
Image Credit: genesismarasigan / ErrorSolutions.tech
  1. When the page "Firefox error code ssl_error_bad_cert_domain" appears, press the button Advance to expand the page**.**

  2. Press the Add Exception button, a window Add Security Exception should appear.

  3. Then press Get Certificate.

  4. And then press Confirm Security Exception.

  5. Refresh the website and see if "Firefox error code ssl_error_bad_cert_domain" disappeared,

2. Configure Date and Time

Mozilla Firefox validates the PC’s time and date. If the time and date are extremely far from the internet date and time, it could throw the error “Firefox error code ssl_error_bad_cert_domain.” Double check your Date and Time if it is synchronized with the internet. See video instruction below.

https://youtu.be/jWhZwByavqA

3. Disable security.ssl3.dhe_rsa_aes_128_sha

"Firefox error code ssl_error_bad_cert_domain" could also be caused by security.ssl3.dhe_rsa_aes_128_sha. It could be interrupting your connection. To fix the problem, you could try disabling security.ssl3.dhe_rsa_aes_128_sha. See instructions below on how to.

Disable security.ssl3.dhe_rsa_aes_128_sha
Image Credit: genesismarasigan / ErrorSolutions.tech
  1. Run Mozilla Firefox.

  2. In the Address bar input "about:config" and press Enter.

  3. Confirm by clicking the "I accept the risk."

  4. After that, input in the search bar "security.ssl3.dhe_rsa_aes_128_sha."

  5. Set "security.ssl3.dhe_rsa_aes_128_sha" to false by double clicking it.

4. Clear cache and disable Deceptive Content and Dangerous Software Protection

“Firefox error code ssl_error_bad_cert_domain” could also be caused by the safety protocol of Mozilla Firefox and a bad cache. You may want to clear cache and disable Deceptive Content and Dangerous Software Protection. See the instructions below.

Clear cache and disable Deceptive Content and Dangerous Software Protection
Image Credit: genesismarasigan / ErrorSolutions.tech
  1. Run Mozilla Firefox.

  2. In the Address bar typeabout:preferences#privacy and hit Enter.

  3. Then press Clear Data in the Cache Web Content.

  4. Then click Clear.

  5. Then disable Deceptive Content and Dangerous Software Protection.

  6. Access the website and see if “Firefox error code ssl_error_bad_cert_domain” disappeared.

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