Examine source code of Simple Bookmark Managers

{
  "manifest_version": 2,
  "name": "Simple Bookmark Manager",
  "version": "1.0",
  "description": "Manage and organize bookmarks easily.",
  "permissions": [
    "bookmarks"
  ],
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icons/icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7a5a5dc9-0e0e-45fc-89c9-6a3c6cc4b2a5}"
    }
  }
}