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Does anyone know a good add-on or method for Firefox to always show information about the used certificate, when visiting a HTTPS site?

Something like this:

enter image description here

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You might be interested in Perspectives and/or Certificate Patrol. They don't do exactly that, but they do warn you if the website's certificate has unexpectedly changed. – grawity Sep 8 '11 at 18:50

CertWatch will do this - it'll popup a dialog showing the certificate used for the website


The first restart after installing the addon will take some time since it has to build the database of available certs - so don't think Firefox has crashed after installing it.

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You don't need an addon - the address bar adds certificate info button at the starting of the address bar when you visit a https site. Click on it and it gives you all the info

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I don't want to click every time I visit a HTTPS site. – LanceBaynes Sep 8 '11 at 13:35
i don't think you are going to find an addon that will give you a popup for the certificate info , because this is not something you are usually looking for , moreover firefox gives you a visual alert in the certificate button if the certificate cannot be validated , extra info usually warrants extra effort :) – Shekhar Sep 8 '11 at 13:39

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