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|User since||March 16, 2011|
|Number of add-ons developed||0 add-ons|
|Average rating of developer's add-ons||Not yet rated|
Firebug can show HTTP headers nicely from the "Net" panel. Its AJAX support is well known, but for a page request, click on the "HTML" tab.This review is for a previous version of the add-on (0.16).