diff --git a/lib/subghz/protocols/allstar_firefly.h b/lib/subghz/protocols/allstar_firefly.h
new file mode 100644
index 000000000..6ebf0dda6
--- /dev/null
+++ b/lib/subghz/protocols/allstar_firefly.h
@@ -0,0 +1,61 @@
+#pragma once
+
+/**
+ * allstar_firefly.h  -  Allstar Firefly 318ALD31K native SubGHz protocol
+ *
+ * Registers the Allstar Firefly gate remote as a first-class SubGHz protocol,
+ * supporting decode from air, save/load of .sub files, and retransmit.
+ *
+ * Protocol summary (measured from captured remotes):
+ *   Carrier   : 318 MHz OOK  (FuriHalSubGhzPresetOok650Async)
+ *   Code type : Static 9-bit trinary  (Supertex ED-9 encoder IC)
+ *   Frame     : 18 symbols (2 per bit), no separate sync pulse
+ *   Repeats   : 20 frames per keypress
+ *   Inter-frame gap: ~30 440 us
+ *
+ *   Symbol encoding - each bit = two (pulse, gap) pairs:
+ *     '+'  ON    : H H  = [4045us HIGH, 607us LOW] x2
+ *     '-'  OFF   : L L  = [530us HIGH, 4139us LOW] x2
+ *     '0'  FLOAT : H L  = [4045us HIGH, 607us LOW, 530us HIGH, 4139us LOW]
+ *
+ * Save file format:
+ *   Filetype: Flipper SubGhz Key File
+ *   Version: 1
+ *   Frequency: 318000000
+ *   Preset: FuriHalSubGhzPresetOok650Async
+ *   Protocol: Allstar Firefly
+ *   Key: +--000++-
+ *
+ * To register with the SubGHz app, in protocol_list.c add:
+ *   #include "allstar_firefly.h"
+ *   &subghz_protocol_allstar_firefly,   (in the protocol array)
+ */
+
+#include <lib/subghz/protocols/base.h>
+
+/* Protocol name (must match what is written to .sub files) */
+#define SUBGHZ_PROTOCOL_ALLSTAR_FIREFLY_NAME  "Allstar Firefly"
+
+/* Timing constants (from 37-frame analysis of two captures) */
+#define AF_FREQ              318000000UL
+#define AF_BIT_COUNT         9u
+#define AF_SYM_COUNT         18u
+
+#define AF_LONG_PULSE_US     4045u
+#define AF_SHORT_PULSE_US    530u
+#define AF_SHORT_GAP_US      607u
+#define AF_LONG_GAP_US       4139u
+#define AF_INTERFRAME_US     30440u
+
+#define AF_SHORT_PULSE_MIN   300u
+#define AF_SHORT_PULSE_MAX   1200u
+#define AF_LONG_PULSE_MIN    2500u
+#define AF_LONG_PULSE_MAX    5500u
+#define AF_FRAME_THRESH_US   20000u
+#define AF_TX_REPEAT         20u
+#define AF_TX_BUF_SIZE       (AF_TX_REPEAT * AF_SYM_COUNT * 2u + 8u)
+
+/* Protocol vtable entries */
+extern const SubGhzProtocolDecoder subghz_protocol_decoder_allstar_firefly;
+extern const SubGhzProtocolEncoder subghz_protocol_encoder_allstar_firefly;
+extern const SubGhzProtocol        subghz_protocol_allstar_firefly;