Examine source code of FF Overrides

{
  "manifest_version": 3,
  "name": "FF Overrides",
  "version": "1.1.0",
  "minimum_chrome_version": "111.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "ff-overrides@e-conomic-extensions.local",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "description": "Toggle e-conomic client feature flags: match the app or force off locally.",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "action": {
    "default_title": "Feature flag Overrides",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.e-conomic.com/*",
        "http://localhost/*",
        "http://127.0.0.1/*"
      ],
      "js": [
        "page-world.js"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "matches": [
        "https://*.e-conomic.com/*",
        "http://localhost/*",
        "http://127.0.0.1/*"
      ],
      "js": [
        "content-bridge.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": []
}