Examine source code of AutoScroll

{
  "manifest_version": 2,
  "name": "AutoScroll",
  "version": "1.1",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon.png"
    }
  },
  "icons": {
    "16": "icons/icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{68f212f3-c47c-46c0-9fa1-07e45dc1a8de}"
    }
  }
}