Review for Live HTTP Headers by richard lee
Rated 5 out of 5 stars
I found it appends a string at the end of every field, like this http://a.imagehost.org/0198/20090811.png , I tried to disable all other addons and it's still appending them.
This review is for a previous version of the add-on (0.15).To create your own collections, you must have a Mozilla Add-ons account.