Firefox: How to handle invalid security certificates ?¶
- Table of contents
- Firefox: How to handle invalid security certificates ?
When accessing for the first time Community Single Sign-On (CSSO) enabled web sites like
depending of the version installed, the Firefox browser will certainly present you one of the following messages.
- Firefox 3.5
[!wikiFirefoxInvalidSecurityCertificateFirefox35-ConnectionUntrustedpng|align=center!]
- Firefox 3.0
[!wikiFirefoxInvalidSecurityCertificateFirefox30-SecurityConnectionFailedpng|align=center!]
If you want to avoid these messages in the future, the following instructions will prevent Firefox from raising those messages.
Firefox 3.5
- Click on the link I Understand the Risks
[!wikiFirefoxInvalidSecurityCertificateFirefox35-ConnectionUntrustedpng|align=center!]
- Push the button Add Exception
[!wikiFirefoxInvalidSecurityCertificateFirefox35-ConnectionUntrusted-AddExceptionpng|align=center!]
The certificate presented by the server will automatically be downloaded from the server
Push the button View
[!wikiFirefoxInvalidSecurityCertificateFirefox35-AddSecurityException-Viewpng|align=center!]
Go ahead to the instructions given at All versions.
Firefox 3.0
- Click on the link "Or you can add an exception"
[!Firefox30-SecurityConnectionFailedpng|align=center!]
- Push the button Add Exception
[!Firefox30-SecurityConnectionFailed-AddExceptionpng|align=center!]
- Push the button Get Certificate to get the certificate presented by the server
[!Firefox30-AddSecurityException-GetCertificatepng|align=center!]
- Push the button View to inspect the presented certificate
[!Firefox30-AddSecurityException-Confirmpng|align=center!]
Go ahead to the instructions given at All versions
All versions
- In a second browser window, open the EDIT WP 5.7 Certification Authority page and look for the SHA-1 and/or MD5 fingerprint of the server you currently wanted to access (e.g. idp.e-taxonomy.eu)
[!Firefox35-IdPFingerprintpng|align=center!]
Back to the Certificate Viewer dialog of Firefox, look for the SHA-1 and MD5 fingerprints below the Fingerprint header
Compare these values whith those found on the EDIT WP 5.7 Certification Authority page
Push the button Close
[!Firefox35-CertificateViewer-Closepng|align=center!]
Note: Proceed only, if the fingerprints are identical. Otherwise, inform the editsupport@bgbm.org EDIT Support Team immediately !
Verify, that the radio button Permanently store this exception is selected, if you don't want to be alerted for this server anymore
Push the button Confirm Security Exception
[!Firefox35-AddSecurityException-Confirmpng|align=center!]
- You should now be able to proceed and e.g. login to the EDIT Federation at https://idp.e-taxonomy.eu
[!Firefox35-EDITFederation-Loginpng|align=center!]
Updated by Andreas Müller over 2 years ago · 11 revisions