diff --git a/create_icons.html b/create_icons.html
new file mode 100644
index 0000000..e8d3049
--- /dev/null
+++ b/create_icons.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>Icon Creator</title>
+</head>
+<body>
+    <canvas id="canvas" width="128" height="128"></canvas>
+    <script>
+        const canvas = document.getElementById('canvas');
+        const ctx = canvas.getContext('2d');
+        
+        // Crear icono simple con gradiente
+        const gradient = ctx.createLinearGradient(0, 0, 128, 128);
+        gradient.addColorStop(0, '#667eea');
+        gradient.addColorStop(1, '#764ba2');
+        
+        ctx.fillStyle = gradient;
+        ctx.fillRect(0, 0, 128, 128);
+        
+        // Agregar texto
+        ctx.fillStyle = 'white';
+        ctx.font = 'bold 48px Arial';
+        ctx.textAlign = 'center';
+        ctx.textBaseline = 'middle';
+        ctx.fillText('📦', 64, 64);
+        
+        // Descargar en diferentes tamaños
+        function downloadIcon(size) {
+            const tempCanvas = document.createElement('canvas');
+            tempCanvas.width = size;
+            tempCanvas.height = size;
+            const tempCtx = tempCanvas.getContext('2d');
+            
+            // Redibujar con el tamaño correcto
+            tempCtx.drawImage(canvas, 0, 0, size, size);
+            
+            const link = document.createElement('a');
+            link.download = `icon${size}.png`;
+            link.href = tempCanvas.toDataURL('image/png');
+            link.click();
+        }
+        
+        // Crear botones para descargar
+        [16, 32, 48, 128].forEach(size => {
+            const btn = document.createElement('button');
+            btn.textContent = `Download ${size}x${size}`;
+            btn.onclick = () => downloadIcon(size);
+            document.body.appendChild(btn);
+            document.body.appendChild(document.createElement('br'));
+        });
+    </script>
+</body>
+</html>
diff --git a/icons/icon128.png b/icons/icon128.png
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index 0000000..9da3046
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diff --git a/icons/icon16.png b/icons/icon16.png
new file mode 100644
index 0000000..ec51cbe
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diff --git a/icons/icon32.png b/icons/icon32.png
new file mode 100644
index 0000000..60b54f1
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diff --git a/icons/icon48.png b/icons/icon48.png
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index 0000000..11b8fde
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diff --git a/manifest.json b/manifest.json
index 5f5c7d7..7317c6a 100644
--- a/manifest.json
+++ b/manifest.json
@@ -28,7 +28,13 @@
   },
   "action": {
     "default_popup": "popup.html",
-    "default_title": "Manga Mass Downloader"
+    "default_title": "Manga Mass Downloader",
+    "default_icon": {
+      "16": "icons/icon16.png",
+      "32": "icons/icon32.png",
+      "48": "icons/icon48.png",
+      "128": "icons/icon128.png"
+    }
   },
   "web_accessible_resources": [
     {
