Examine source code of json-to-bookmark

{
  "manifest_version": 2,
  "name": "json-to-bookmark",
  "version": "1.1resigned1",
  "description": "Create bookmarks from json",
  "icons": {
    "48": "icons/bookmark.svg",
    "96": "icons/bookmark.svg"
  },
  "permissions": [
    "bookmarks",
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/bookmark.svg",
    "default_title": "Add Bookmarks from json",
    "default_popup": "popup/jsonToBookmark.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{25b482ef-2b2e-4df2-bdc7-50ae7a312269}"
    }
  }
}