cancel
Showing results for 
Search instead for 
Did you mean: 

MS Exchange 2010 Outook Web App "Untrusted Connection" error in Firefox. No issue with IE or Chrome

Highlighted
New Contributor

MS Exchange 2010 Outook Web App "Untrusted Connection" error in Firefox. No issue with IE or Chrome

I installed Microsoft Root CA Certificate on my Computer. (For Exchange 2010 Outlook Web Access) But Firefox appear "This Connection is Untrusted" error ((Error code: sec_error_unknown_issuer)). IE and Chrome works fine. My firefox version is 18.0.1.

I want to fix this issue without adding a exception. Please help.

1 REPLY
Site Moderator

Re: MS Exchange 2010 Outook Web App "Untrusted Connection" error in Firefox. No issue with IE or Chrome

Try to export those certificates in IE and import the certificates in Firefox.

  • Tools > Options > Advanced : Encryption: Certificates - View Certificates

If this is to be a root certificate then you need to set the applicable trust bits.