Comment 195 for bug 233901

Ok then your dw-config.cfg uses a redirection to a "global_config_url":
lockPref("autoadmin.global_config_url", "http://proxyconfig/autoconfig/");

Mine doesn't redirect to a URL but sets (lock !) preferences in itself , sample few first line on mine dw-config.cfg (mine is called firefox.cfg ):

//put everything in a try/catch
try {
//Privacy & Security
defaultPref("signon.rememberSignons", false);
lockPref("browser.startup.homepage", "http://www.it-sudparis.eu/");
etc ...

I did that once as the "global_config_url" was broken some times ago ,and then I stick with a local to each station configuration file instead of a centralize conf file on a web server as you do, we propagate that file with cfengine on linux and powershell on windows stations (about 300 stations) . Eventually, I did that, because I though that it adds a degree of independance on the web server availability .

About a comment line at the begining of the file, I also had to do it , but can't explain why, probably that the parser needs that !?

However, I'am interested in the way you use a unique file for Mozilla, thunderbird and firefox based on an index.cgi and $ENV{'HTTP_USER_AGENT'}, can you give us a copy of you index.cgi and the common configuration file for the 3 applications ?

Thanks.