BlockOn by Styromaniac

Are you concerned about websites exposing your IP address on alternative networks? This add-on grants you an additional privacy protection measure with ease of use. You can now change what networks pages and resources are allowed to load into your browser tabs on a whim. Changing allowed networks affects all tabs except for tabs browsing addons.mozilla.org (I can't change that limitation for addons.mozilla.org, I'm afraid).

The supported networks are: ZeroNet, Yggdrasil, IPFS, Tor, Lokinet, Freenet, Tahoe-LAFS, GNUnet, I2P and Clearnet.