September 22nd, 2010· Fixed: "Show header only if exists" behavior ("undefined");
September 3rd, 2010· Improvement: Compatibility for Firefox 4.0
July 5th, 2009· Firefox supported version bumped to 3.5.*
April 3rd, 2009· Improvement: Added "Via" header name to predefined headers lists (Request/Response)
February 20th, 2009· Improvement: Up to 10 statusbar panels (was 5);
· Improvement: Now headers names are case insensitive. You may enter headers in any
· case: X-Specific-Header, x-specific-header, X-SpEcIfIc-HeAdEr or X-SPECIFIC-HEADER. And addon will show the header, even if server sends it in other case (for example, x-sPEcific-HeaDER).