Examine source code of Wikipedia Text Search

{
  "manifest_version": 2,
  "name": "Wikipedia Text Search",
  "version": "1.0",
  "description": "Right-click highlighted text to search on Wikipedia",
  "permissions": [
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon_16.png",
    "32": "icons/icon_32.png",
    "48": "icons/icon_48.png",
    "128": "icons/icon_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "{610284ea-448f-48bf-86f9-3121fe32e3fc}"
    }
  },
  "content_security_policy": "script-src 'self'",
  "homepage_url": "https://github.com/marblemary/wikipedia-search-extension/"
}