Access Keys:
Skip to content (Access Key - 0)

Firefox is displaying Error Code -12227

When you attempt to connect to a website that requires certificates, Firefox may display an error similar to the following: has received an incorrect or unexpected message.
Error Code: -12227

This indicates that your browser did not supply a certificate to the site in question. To fix this problem, you must install certificates on your machine.

See: Troubleshooting Certificates in Firefox

See Also

IS&T Contributions

Documentation and information provided by IS&T staff members

Last Modified:

August 04, 2020

Get Help

Request help
from the Help Desk
Report a security incident
to the Security Team
c-firefox c-firefox Delete
firefox firefox Delete
error error Delete
code code Delete
Enter labels to add to this page:
Please wait 
Looking for a label? Just start typing.
This product/service is:
Easy to use
Difficult to use

This article is:
Adaptavist Theme Builder (4.2.3) Powered by Atlassian Confluence 3.5.13, the Enterprise Wiki