Notion SidePanel

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Notion SidePanel",
  "description": "When you open a Database item in Notion, it will appear in the sidepanel.",
  "version": "1.2.1",
  "options_ui": {
    "page": "options.html"
  },
  "action": {
    "default_icon": {
      "16": "16.png",
      "32": "32.png",
      "48": "48.png",
      "128": "128.png"
    }
  },
  "content_scripts": [
    {
      "run_at": "document_idle",
      "matches": [
        "https://*.notion.so/*"
      ],
      "js": [
        "js/content_script.js"
      ]
    }
  ],
  "permissions": [
    "storage"
  ]
}