title: How to make an automatically running Chrome extension?
body: <p>I've been searching around for the past few days for a way to have my extension run automatically; It works when I use chrome.browserAction.onClicked.addListener but I want it to run without having to manually enable it. I'm thinking my manifest.json is configured wrong for this task. If someone could point me in the right direction that would be great!</p>
  
  <p>manifest.json</p>
  
  <pre><code>{
    "manifest_version": 2,
  
    "name": "Rocket",
    "version": "1.0",
    "description": "Feast",
  
    "icons": {
      "128" : "icon.png"
    },
  
    "browser_action": {
      "default_icon": "icon8.png"
    },
  
    "background": { "page": "background.html" },
    "permissions": [ "tabs", "http://*/*", "https://*/*" ],
  
    "web_accessible_resources": [ "contentscript.js", "jquery-2.1.1.js", "background.js"]
  }
  </code></pre>
  
  <p>background.html</p>
  
  <pre><code>&lt;html&gt;
  &lt;head&gt;
  &lt;script src="background.js"&gt;&lt;/script&gt;
  &lt;/head&gt;
  &lt;/html&gt;
  </code></pre>