Re: Is it possible that Firefox prevents serverside includes (SSI) from functioning?
But not entirely. In the first instance, I tried the .shtml route suggested in the docs section by adding the Options, Addtype, and AddOutputFilters lines to the .htaccess file in /.htdocs and renamed hello.html to hello.shtml. At first, this simply created a page listing the hello.shtml file. Then I moved the configuration changes to the httpd configuration file and restarted apache. The result was the same as I reported earlier. Changing the hell.pl reference in hello.shtml and the file name in the cgi-bin directory to hell.shtml gave the same result.
Next I tried the XBitHack method to yield the result I reported earlier. It seems then that something hidden in my configuration file is the problem. Thanks anyway.