Examine source code of LinkHarbor

{
  "manifest_version": 3,
  "name": "LinkHarbor",
  "version": "1.0.0",
  "description": "Inspect link hygiene: unsafe blank targets, hash links, javascript pseudo-links, and duplicate destinations.",
  "icons": {
    "48": "sigil/icon-48.png",
    "96": "sigil/icon-96.png",
    "128": "sigil/icon-128.png"
  },
  "action": {
    "default_title": "LinkHarbor",
    "default_popup": "dock/panel.html",
    "default_icon": {
      "48": "sigil/icon-48.png"
    }
  },
  "permissions": [
    "tabs",
    "storage",
    "clipboardWrite"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "core/collector.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{333cf30f-349c-44fa-8997-1ff7fecfe234}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}