To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
Everyone should use this! Rated 5 out of 5 stars
This is one of my favorite addons. It helps in identifying potential MITM attacks and seeing when sites actually update their SSL certificates and verifying that you aren't the only one receiving a specific certificate. Everyone should use this extension, and if you have the resources please run a Notary Server!This review is for a previous version of the add-on (18.104.22.168-signed).