Examine source code of Motorro

{
  "manifest_version": 2,
  "name": "Motorro",
  "version": "1.6.10",
  "description": "Motorro",
  "web_accessible_resources": [
    "images/iconsquare.png"
  ],
  "content_scripts": [
    {
      "run_at": "document_idle",
      "all_frames": true,
      "css": [
        "styles.css"
      ],
      "js": [
        "content.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "permissions": [
    "contextMenus",
    "<all_urls>"
  ],
  "background": {
    "page": "background.html"
  },
  "icons": {
    "16": "images/iconsquare2.png",
    "48": "images/iconsquare2.png",
    "128": "images/iconsquare2.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7be6a69f-382f-4712-af7e-46d7149b74ae}"
    }
  }
}