Review for Live HTTP Headers by David Zimmerman
Rated 4 out of 5 stars
This is extremely useful although it provides SO MUCH information it is difficult to filter through all of it. There could be improvements made to the way headers are displayed- perhaps by showing a list of all headers and then expand each header to find all the information about that particular header.
This review is for a previous version of the add-on (0.16).To create your own collections, you must have a Mozilla Add-ons account.