new Crown address format. May not be elegant solution, but bitcoinjs has limitation of network prefix length and I don't want to modify it. This approach is isolated and does not affect others

src/js/index.js

@@ -977,6 +977,11 @@
                         address = bitcoinjs.bitcoin.address.fromOutputScript(scriptpubkey, network)
                     }
                 }
+                
+                if ((networks[DOM.network.val()].name == "CRW - Crown")) {
+                    address = bitcoinjs.bitcoin.networks.crown.toNewAddress(address);
+                }
+                
                 addAddressToList(indexText, address, pubkey, privkey);
                 if (isLast) {
                     hidePending();
@@ -1874,6 +1879,13 @@
                 setHdCoin(186);
             },
         },
+        {
+            name: "CRW - Crown (Legacy)",
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.crown;
+                setHdCoin(72);
+            },
+        },
         {
             name: "CRW - Crown",
             onSelect: function() {