I switched to FF3 a while ago but quickly got fed up with the "friendly" and "secure" SSL certificate handling (for incorrect ones). Set the following in about:config and be happy:

• browser.xul.error_pages.expert_bad_cert = true
• browser.ssl_override_behavior = 2

This adds the "add exception" button to the info page and preloads the certificate already so you can just click add.

Incoming Links (via Technorati):
Nothing Reported