Deleting the DigiNotar CA cert TB

This article is no longer maintained, so its content might be out of date.

Mozilla has learned that a fraudulent SSL certificate for websites belonging to Google has been issued by DigiNotar. This is not a Thunderbird-specific issue and the certificate has now been canceled which should protect most people.

Mozilla has released an update to Thunderbird to further protect you. Please update as soon as possible by following the steps in the Updating Thunderbird article.

You can manually delete this certificate from any version of Thunderbird with these steps:

  1. Click the menu button New Fx Menu Fx57Menu and choose Options.Preferences.
  2. Click on the Advanced panel
  3. Select the Certificates tab
  4. Click View Certificates
  5. In the Certificate Manager window, select the Authorities tab
  6. Scroll down to DigiNotar and select the DigiNotar Root CA
  7. Click Delete or Distrust...
  8. Click OK to confirm the deletion
    • Because the certificate is "built-in" it will be distrusted but not deleted. Distrusting the certificate has the same effect as deleting it.

diginotar-win-1 TB

diginotar-mac-1 TB

diginotar-lin-1 TB

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