Examine source code of inEntertainment Plugin

{
  "manifest_version": 2,
  "name": "inEntertainment Plugin",
  "version": "6.4.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "firefox@inentertainment.com",
      "strict_min_version": "55.0"
    }
  },
  "commands": {
    "execute-plugin": {
      "suggested_key": {
        "default": "Ctrl+Shift+U"
      },
      "description": "Sends the current breakdown page to the inEntertainment application"
    }
  },
  "description": "Sends the current breakdown page to the inEntertainment application",
  "icons": {
    "48": "icons/ieicon48.png",
    "96": "icons/ieicon96.png"
  },
  "developer": {
    "name": "inEntertainment, Inc.",
    "url": "http://www.inentertainment.com"
  },
  "permissions": [
    "tabs",
    "webNavigation",
    "<all_urls>",
    "http://*/*",
    "https://*/*"
  ],
  "browser_action": {
    "default_icon": "icons/ieicon48.png",
    "default_title": "Sends breakdown to inEntertainment"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}