NetExport is a very neat Firebug Extension created by Jan Odvarko, one of the main Firebug contributors. Basically this extension lets you save traces from Firebugs Net Panel into an HTTP Archive (HAR file). The true beauty of this plugin is seen when passing such a created archive into the HTTP Archive Viewer. Be sure to try some of the examples, and be amazed!
NetExport Firebug Extension
