A collection of essential and useful addons that allow for quicker and more efficient processing of information.
Server Spy indicates what brand of HTTP server (e.g. Apache, IIS, etc.) runs on the visited sites.
Collector's Note small utility that displays what kind of server the page you are visiting is running and shows it in the statusbar
Collector's Note enhanced error console that allows for tracking of all kinds of information, hiding duplicates, going to error lines and much more
Connect securely to https websites by checking certificates with network notaries. See http://www.perspectives-project.org
Collector's Note this notary system was designed by carnegie mellon university to validate and authenticate ssl certificates for each website to add a new layer of security and authentication to ensure you are not using a phishing site
Collector's Note adds some extra settings that are not officially exposed in the options panel but can help reduce JS related annoyances
Detects Duplicate Bookmarks when bookmarks are added and specify where is the previous URL. You can also search and delete duplicates URL already in your Bookmarks.
Firefox 13 support is available from http://bookmarkdd.mozdev.org in version 1.1.1.
Collector's Note excellent for those who manage a large number of bookmarks and want to keep their places database clean and tidy and avoid redundant or multiple entries, excellent for finding lost ones too ;)