tag:www.local-guru.net,2005:/blog/tag/firefox local-guru.net 2007-11-03T15:43:00+01:00 GuruBlog engine tag:www.local-guru.net,2005:Article/12 2007-11-03T15:43:00+01:00 2007-11-03T15:43:00+01:00 Nikolaus Gradwohl <p>In an erlier article i describe how to switch between the network environments i am using, but there was one programm i could not convince to let me change the proxy settings via apple script - firefox.</p> <p>i still needet to switch the firefox settings per hand - something i didnt like at all.</p> <p>one day the little "fetch proxy settings for url" dialog part from the firefox proxysettigns made me courious and i found out, that firefox expects a javascript file on this url, which tells firefox what proxy to use.</p> <pre><code>function FindProxyForURL(url, host) { if ( dnsResolve( host ) == "127.0.0.1" ) { return "DIRECT"; } else { return "PROXY proxyhost:8080"; } } </code></pre> <p>this script can use some predefined functions like "isInNet" or "dnsResolve" to determine which network Im in and use the appropriate proxy. the file doesnt even have to live on a http server, a file:// url is sufficient.</p> <p>e voila - no more manual proxy switching</p>