How can I make Firefox apply its proxy rules AFTER resolving domain names to their IP addresses, like Internet Explorer does?
I have Firefox configured to use a HTTP proxy using its manual proxy configuration, yet I do not want to use this proxy when I am trying to access web sites in my local network. Therefore I have specified an IP address range which I want to exclude from the proxy usage:
172.16.0.0/16
Now, there's one of those local network web servers which I would like to access. Its IP address is 172.16.22.45 and its DNS hostname is "mywebserver".
My problem: If I try to accesss it with "http://172.16.22.45/website/" it works, but if I try to access it using its DNS name, "http://mywebserver/website/", the page won't load. I suspect this is because Firefox is trying to use the proxy server which does not work for local network connections, because if I set Firefox to "No Proxy" both addresses work.
My question: How do I make Firefox first resolve a web server's IP address, and THEN apply its proxy rules, instead of trying to apply the proxy rules to the servers' dns names? Because there's a lot of web servers in this local network and I can't write each of them down in the proxy exclusion rules. Some time before I was using FoxyProxy and defined a regex to exclude DNS names that do not have subdomains, but that was a rather crude workaround and I think this should work by IP addresses.
I would really appreciate if somebody could tell me how to fix this. It has to work somehow, doesn't it, or else companies would have a real hard time deploying firefox if they are using a proxy, which I suppose most of them are.
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Before you invest more time in searching for a way to do this, unfortunately the above procedure is not possible yet for Firefox 4 and before:
https://bugzilla.mozilla.org/show_bug.cgi?id=136789
(Modified April 17, 2011 4:34:07 PM BST by eomanis)
Also now see bug 408669 ~j99
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