Examine source code of HeaderForge

{
  "manifest_version": 3,
  "name": "HeaderForge",
  "default_locale": "en",
  "version": "1.3.7",
  "homepage_url": "https://headerforge.dev",
  "description": "__MSG_extDescription__",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "declarativeNetRequestWithHostAccess",
    "storage",
    "scripting",
    "activeTab"
  ],
  "optional_permissions": [
    "cookies"
  ],
  "optional_host_permissions": [
    "*://*/*"
  ],
  "background": {
    "type": "module",
    "scripts": [
      "background/service-worker.js"
    ]
  },
  "action": {
    "default_popup": "ui/popup.html",
    "default_title": "HeaderForge",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; base-uri 'none'"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "content/mock-interceptor.js",
        "content/mock-bridge.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d5e8f3a0-4b1c-4e6a-9f2d-8c7b6a5e4d30}",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}