YAFP is a proxy to filter out advertising banners and malicious script
code from web sites. It is written in Perl and based on an example by
Randal L. Schwartz. For performance reasons it uses preforking to
spawn several processes of itself (like Apache does). Unlike other
available proxies (such as Junkbuster), it does blocking by Perl
regular expressions on the site content, which allows you to block
JavaScript and popups, in addition to normal ads.
