INSTALL
- rename url-regexp.txt to url-regexp.py (this is to prevent http server from running file as CGI - will fix .htaccesss later)
- move both (.py and .xml) files to ~/.gnome2/epiphany/extensions/
- edit the .py file itself to adjust regexps to your needs. No UI, but is very straightforward.
- enable the extension

Improvements are welcome.