With versions of Firefox up to 3.6.18, Firefox did and still does emit character by character what CGI script produces. Versions 4.x and 5.x write "Transferring data from <hostname> ..." and do nothing until complete website is loaded, with no progress indicator, so user thinks site doesn't work and walks away. It is very unpleasant, for diagnostics are displayed only when it is too late to react. Please help. Is there are about: config setting that helps the Firefox behave the old (right) way?