diff --git a/profiles/contributed_browser_profiles.go b/profiles/contributed_browser_profiles.go
index 30fa8dd..56c03ad 100644
--- a/profiles/contributed_browser_profiles.go
+++ b/profiles/contributed_browser_profiles.go
@@ -1 +1,144 @@
 package profiles
+
+import (
+	"github.com/bogdanfinn/fhttp/http2"
+	tls "github.com/bogdanfinn/utls"
+)
+
+var Firefox_120 = ClientProfile{
+	clientHelloId: tls.ClientHelloID{
+		Client:               "Firefox",
+		RandomExtensionOrder: false,
+		Version:              "120",
+		Seed:                 nil,
+		SpecFactory: func() (tls.ClientHelloSpec, error) {
+			return tls.ClientHelloSpec{
+				CipherSuites: []uint16{
+					tls.TLS_AES_128_GCM_SHA256,
+					tls.TLS_CHACHA20_POLY1305_SHA256,
+					tls.TLS_AES_256_GCM_SHA384,
+					tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+					tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+					tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
+					tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
+					tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+					tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
+					tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+					tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
+					tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
+					tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+					tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
+					tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
+					tls.TLS_RSA_WITH_AES_128_CBC_SHA,
+					tls.TLS_RSA_WITH_AES_256_CBC_SHA,
+				},
+				CompressionMethods: []byte{
+					tls.CompressionNone,
+				},
+				Extensions: []tls.TLSExtension{
+					&tls.SNIExtension{},
+					&tls.ExtendedMasterSecretExtension{},
+					&tls.RenegotiationInfoExtension{Renegotiation: tls.RenegotiateOnceAsClient},
+					&tls.SupportedCurvesExtension{[]tls.CurveID{
+						tls.X25519,
+						tls.CurveP256,
+						tls.CurveP384,
+						tls.CurveP521,
+						tls.FAKEFFDHE2048,
+						tls.FAKEFFDHE3072,
+					}},
+					&tls.SupportedPointsExtension{SupportedPoints: []byte{
+						tls.PointFormatUncompressed,
+					}},
+
+					&tls.ALPNExtension{AlpnProtocols: []string{"h2", "http/1.1"}},
+					&tls.StatusRequestExtension{},
+					&tls.DelegatedCredentialsExtension{
+						SupportedSignatureAlgorithms: []tls.SignatureScheme{
+							tls.ECDSAWithP256AndSHA256,
+							tls.ECDSAWithP384AndSHA384,
+							tls.ECDSAWithP521AndSHA512,
+							tls.ECDSAWithSHA1,
+						},
+					},
+					&tls.KeyShareExtension{[]tls.KeyShare{
+						{Group: tls.X25519},
+						{Group: tls.CurveP256},
+					}},
+					&tls.SupportedVersionsExtension{[]uint16{
+						tls.VersionTLS13,
+						tls.VersionTLS12,
+					}},
+					&tls.SignatureAlgorithmsExtension{SupportedSignatureAlgorithms: []tls.SignatureScheme{
+						tls.ECDSAWithP256AndSHA256,
+						tls.ECDSAWithP384AndSHA384,
+						tls.ECDSAWithP521AndSHA512,
+						tls.PSSWithSHA256,
+						tls.PSSWithSHA384,
+						tls.PSSWithSHA512,
+						tls.PKCS1WithSHA256,
+						tls.PKCS1WithSHA384,
+						tls.PKCS1WithSHA512,
+						tls.ECDSAWithSHA1,
+						tls.PKCS1WithSHA1,
+					}},
+					&tls.FakeRecordSizeLimitExtension{0x4001},
+					tls.BoringGREASEECH(),
+				}}, nil
+		},
+	},
+	settings: map[http2.SettingID]uint32{
+		http2.SettingHeaderTableSize:   65536,
+		http2.SettingInitialWindowSize: 131072,
+		http2.SettingMaxFrameSize:      16384,
+	},
+	settingsOrder: []http2.SettingID{
+		http2.SettingHeaderTableSize,
+		http2.SettingInitialWindowSize,
+		http2.SettingMaxFrameSize,
+	},
+	pseudoHeaderOrder: []string{
+		":method",
+		":path",
+		":authority",
+		":scheme",
+	},
+	connectionFlow: 12517377,
+	headerPriority: &http2.PriorityParam{
+		StreamDep: 13,
+		Exclusive: false,
+		Weight:    41,
+	},
+	priorities: []http2.Priority{
+		{StreamID: 3, PriorityParam: http2.PriorityParam{
+			StreamDep: 0,
+			Exclusive: false,
+			Weight:    200,
+		}},
+		{StreamID: 5, PriorityParam: http2.PriorityParam{
+			StreamDep: 0,
+			Exclusive: false,
+			Weight:    100,
+		}},
+		{StreamID: 7, PriorityParam: http2.PriorityParam{
+			StreamDep: 0,
+			Exclusive: false,
+			Weight:    0,
+		}},
+		{StreamID: 9, PriorityParam: http2.PriorityParam{
+			StreamDep: 7,
+			Exclusive: false,
+			Weight:    0,
+		}},
+		{StreamID: 11, PriorityParam: http2.PriorityParam{
+			StreamDep: 3,
+			Exclusive: false,
+			Weight:    0,
+		}},
+		{StreamID: 13, PriorityParam: http2.PriorityParam{
+			StreamDep: 0,
+			Exclusive: false,
+			Weight:    240,
+		}},
+	},
+}
diff --git a/profiles/profiles.go b/profiles/profiles.go
index c44705e..21e715a 100644
--- a/profiles/profiles.go
+++ b/profiles/profiles.go
@@ -35,6 +35,7 @@ var MappedTLSClients = map[string]ClientProfile{
 	"firefox_108":            Firefox_108,
 	"firefox_110":            Firefox_110,
 	"firefox_117":            Firefox_117,
+	"firefox_120":		  Firefox_120,
 	"opera_89":               Opera_89,
 	"opera_90":               Opera_90,
 	"opera_91":               Opera_91,