diff --git a/data/src/emulator.js b/data/src/emulator.js
index b33c114..b593112 100644
--- a/data/src/emulator.js
+++ b/data/src/emulator.js
@@ -4575,6 +4575,8 @@ class EmulatorJS {
             this.gameManager.setAltKeyEnabled(value === "enabled");
         } else if (option === "lockMouse") {
             this.enableMouseLock = (value === "enabled");
+        } else if (option === "autofireInterval") {
+            this.defaultAutoFireInterval = parseInt(value);
         }
     }
     menuOptionChanged(option, value) {
@@ -5240,6 +5242,14 @@ class EmulatorJS {
             "enabled": this.localization("Enabled"),
         }, (this.enableMouseLock === true ? "enabled" : "disabled"), inputOptions, true);
 
+        addToMenu(this.localization("Autofire Interval"), "autofireInterval", {
+            "20": "20ms",
+            "50": "50ms",
+            "100": "100ms",
+            "200": "200ms",
+            "500": "500ms",
+        }, "100", inputOptions, true);
+
         checkForEmptyMenu(inputOptions);
 
         if (this.saveInBrowserSupported()) {