Examine source code of ContactLog

{
  "manifest_version": 3,
  "name": "ContactLog",
  "version": "1.0.0",
  "description": "Add rich text notes to your LinkedIn™ connections with cross-device sync",
  "browser_specific_settings": {
    "gecko": {
      "id": "contactlog@morrison.sg",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "clipboardWrite"
  ],
  "host_permissions": [
    "*://*.linkedin.com/*",
    "*://*.supabase.co/*"
  ],
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "options_ui": {
    "page": "setup/setup.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.linkedin.com/*"
      ],
      "js": [
        "content/extract-profile.js"
      ],
      "run_at": "document_idle"
    }
  ]
}