Examine source code of WordGloss

{
  "manifest_version": 3,
  "name": "WordGloss",
  "version": "2.1.0",
  "description": "Select a word to see a fast, concise definition and pronunciation without leaving the page.",
  "permissions": [
    "menus",
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "https://api.dictionaryapi.dev/*",
    "https://en.wiktionary.org/*",
    "https://upload.wikimedia.org/*",
    "https://ssl.gstatic.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "word-gloss@local.example",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "action": {
    "default_title": "WordGloss site settings",
    "default_popup": "popup.html"
  }
}