I'm not familiar enough with the rules for .PAC files, but is there a way to have no-ads.pac include another file that stores local rules?

This way, we can just download a new version every month or so, and eventually get around to checking if our local rules have been included in the distribution.

If you're hosting the .pac file on a web server which allows server-side includes you can do this.

    //

    // Whitelist section from InvisiBill

    //

    // Add sites here that should never be matched for ads.

    //

    if (0

        // WHITELIST

 <!--#include virtual="whitelist.js" -->

        // To add whitelist domains, simple add a line such as:

        //      || dnsDomainIs(host, "schooner.com")

        // or for a single host

        //      || (host == "some-host-name")

I use this to maintain a dynamic whitelist and blacklist that I written have bookmarklets for, in conjunction with the noproxy shell script. I can post if there is interest.