Examine source code of FastMemo

{
  "manifest_version": 2,
  "name": "FastMemo",
  "version": "1.0",
  "description": "Take notes in a sidebar while browsing.",
  "icons": {
    "64": "icon64.png",
    "128": "icon128.png"
  },
  "sidebar_action": {
    "default_icon": "icon64.png",
    "default_panel": "sidebar.html",
    "default_title": "Quick Notes"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ef004c27-18b9-4922-b1f4-3b5d7d5e6d41}",
      "strict_min_version": "106.0"
    }
  }
}