Squid question

[Tim Wunder]

While I'm googling for the answer to this question, I figgerd I'd also ask 
here. 
I've configured and installed squid with squidGuard and it workd, provided I 
configure my browser to use the proxy service at 192.168.1.2:3128. When the 
browser is configured (in this case, MozillaFirebird) to connect directly to 
the internet, the proxy is bypassed.
How can I force the use of the proxy server, even if the browser isn't 
configured to use it? Would this be a firewall configuration?

Thanks, 
Tim

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