diff --git a/bg.js b/bg.js
new file mode 100644
index 0000000..585e2ef
--- /dev/null
+++ b/bg.js
@@ -0,0 +1,7 @@
+chrome.runtime.onConnect.addListener(function(port){
+    port.onMessage.addListener(function(request) {
+        console.log('バックグラウンドアンドページに出力');
+
+        chrome.tabs.create({url:request.url})
+    });
+});
diff --git a/main.js b/main.js
index e7d200f..f900b59 100644
--- a/main.js
+++ b/main.js
@@ -1 +1,9 @@
-window.alert('Hello, World');
+window.addEventListener('keydown', function(evt){
+    let port = chrome.extension.connect();
+
+    switch ( evt.keyCode ){
+    case 65: // 'a'
+        port.postMessage({'url':'https://www.google.co.jp'});
+        break;
+    }
+});
diff --git a/manifest.json b/manifest.json
index fe1cfaa..5914c09 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,9 +2,14 @@
    "name": "sample extension",
    "description": "sample code",
    "manifest_version": 2,
+   "background": {
+      "scripts": [ "bg.js" ],
+      "persistent": false
+   },
    "content_scripts": [ {
       "matches": [ "http://*/*", "https://*/*" ],
       "js": [ "main.js" ]
    } ],
+    "permissions": [ "http://*/*", "https://*/*", "tabs" ],
    "version": "1.0.0.0"
 }