The extension finally made it into cvs, you can get it by getting a fresh checkout of the epiphany-extensions module on gnome cvs servers.
Last night I also added a context menu on the list of feeds to copy the feed address in clipboard, and allwed to drage the feed in any text entry to get the url too.
Beside that i made a little extension called “file-watch” to will reload a page, if this is a local page and it is modifed, very practical if you develop web-pages locally, just save it in your editor, and epiphany will refredh the view automatically !
Available here
This might well be transformed in the core epiphany package instead of an extension.