Cert Viewer Plus for Thunderbird For Mac Publisher's description
from Kaspar Brand
A Thunderbird add-on that certificates viewer enhancements
Extends the certificate viewer dialog with additional options: an X.509 certificate can be displayed in PEM format (opens in a new window) or saved to a file (PEM/DER/PKCS#7). On the "General" tab, Cert Viewer Plus will also show any e-mail addresses included in the certificate, and make the fingerprint values copyable. On the "Details" tab, the trust configuration (SSL/Mail/Code) is shown for each certificate, and can be edited in newer releases of Firefox/Thunderbird/Seamonkey. Furthermore, an entry for direct access to the certificate manager dialog is added to the Tools menu, together with a keyboard shortcut.
Cert Viewer Plus releases 1.0 and later are provided as signed XPI files. The signature will successfully verify if the "Builtin Roots Module" is enabled in its standard configuration. An error like "could not install the file ... because: Signing could not be verified" indicates that either the XPI file has been tampered with or the trust settings of the built-in certification authorities have been tweaked. (In the latter case, I assume that you're also savvy enough to figure out what trust anchor needs to be re-enabled in order to make the verification succeed again... or how to rip the signature out of the file, otherwise ;-)
To reach me by mail, use the address mozcvp velox ch (insert an at sign before and a dot after "velox" - sorry for the obfuscation).
Program Release Status:
Program Install Support: Inserted and uninstall