Examine source code of Quick Notes Sidebar

{
  "manifest_version": 2,
  "name": "Quick Notes Sidebar",
  "version": "1.0",
  "description": "Easily take and save notes within a Firefox sidebar.",
  "icons": {
    "48": "icons/note-icon-48.png"
  },
  "permissions": [
    "storage"
  ],
  "sidebar_action": {
    "default_icon": "icons/note-icon-48.png",
    "default_title": "Quick Notes",
    "default_panel": "notes-sidebar.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{212a2719-7fc9-419f-a4cc-288aa11a1c92}"
    }
  }
}