diff --git a/electrum_dash/coins.py b/electrum_dash/coins.py
index 39526d66c..425f3535d 100644
--- a/electrum_dash/coins.py
+++ b/electrum_dash/coins.py
@@ -6,7 +6,7 @@ def static_header_offset(cls, height):
         raise Exception('Not implemented')
 
 
-class Zcoin(Coin):
+class Firo(Coin):
     PRE_MTP_BLOCKS = 117564
     PRE_MTP_HEADER_SIZE = 80
     MTP_HEADER_SIZE = 180
@@ -36,5 +36,5 @@ def check_header_size(self, header: bytes):
         return False
 
 
-class ZcoinTestnet(Zcoin):
+class FiroTestnet(Firo):
     PRE_MTP_BLOCKS = 1
diff --git a/electrum_dash/constants.py b/electrum_dash/constants.py
index 396be4829..64463a8e8 100644
--- a/electrum_dash/constants.py
+++ b/electrum_dash/constants.py
@@ -107,7 +107,7 @@ class BitcoinMainnet(AbstractNet):
         'p2wsh':       0x02aa7ed3,  # Zpub
     }
     BIP44_COIN_TYPE = 136
-    COIN = coins.Zcoin()
+    COIN = coins.Firo()
     XPUB_HEADERS_INV = inv_dict(XPUB_HEADERS)
     DIP3_ACTIVATION_HEIGHT = 5000
     # DRKV_HEADER = 0x02fe52f8  # drkv
@@ -146,7 +146,7 @@ class BitcoinTestnet(AbstractNet):
     # DRKV_HEADER = 0x3a8061a0  # DRKV
     # DRKP_HEADER = 0x3a805837  # DRKP
     BIP44_COIN_TYPE = 1
-    COIN = coins.ZcoinTestnet()
+    COIN = coins.FiroTestnet()
     DIP3_ACTIVATION_HEIGHT = 5000
 
 
diff --git a/electrum_dash/plugins/trezor/trezor.py b/electrum_dash/plugins/trezor/trezor.py
index 334ad5f0c..cd755ed52 100644
--- a/electrum_dash/plugins/trezor/trezor.py
+++ b/electrum_dash/plugins/trezor/trezor.py
@@ -207,7 +207,7 @@ def get_client(self, keystore, force_pair=True, *,
         return client
 
     def get_coin_name(self):
-        return "Zcoin Testnet" if constants.net.TESTNET else "Zcoin"
+        return "Firo Testnet" if constants.net.TESTNET else "Firo"
 
     def initialize_device(self, device_id, wizard, handler):
         # Initialization method