Examine source code of YouTube Results Filter

{
  "manifest_version": 2,
  "name": "YouTube Results Filter",
  "version": "1.0",
  "description": "Hide YouTube videos mentioning specified words in titles or from blocked channels",
  "browser_specific_settings": {
    "gecko": {
      "id": "UTF@keytouse.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "https://www.youtube.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    },
    "default_title": "YouTube Words Filter",
    "default_popup": "popup.html"
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  }
}