Very usefull! Rated 5 out of 5 stars
This is my new favourite add-on! :-)
But I'm afraid I noticed one bug: You can't update Firefox to the new version 3.08 whithout deactivating RequestPolicy...
Fixed in version 0.5.5
Thank you immensely for reporting this. Version 0.5.5 permanently whitelists requests from downloads.mozilla.org to other sites, as those update requests appear to redirect off-site now.