Examine source code of Video Hotkeys

{
  "manifest_version": 2,
  "name": "__MSG_name__",
  "description": "__MSG_description__",
  "default_locale": "en",
  "version": "4.5.4",
  "author": "imozo studio",
  "icons": {
    "128": "logo128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "proxy.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{534dc4cb-f239-4b5f-94c1-9c4d80900592}"
    }
  }
}