It works as described and probably I won't use firebug again for checking the headers. Some features that would be nice to have: - instead of showing the R icon (when the target website is redirecting), show the redirection result's icon (the R can be left in a corner of that icon); - add a "hold click" menu that would allow the following options: scan directly in HTTPS, open the redirection directly and hide/show the results in the lists of securityheaders.io; - provide a small pop-down preview on hover.
