Examine source code of bookmark batch-updater

{
  "description": "Utility to modify properties of multiple bookmarks at once",
  "author": "MrOtherGuy",
  "manifest_version": 2,
  "name": "bookmark batch-updater",
  "permissions": [
    "bookmarks"
  ],
  "version": "1.0.1",
  "browser_action": {
    "default_title": "bookmark batch-updater",
    "browser_style": true
  },
  "background": {
    "scripts": [
      "background-script.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "bmbupdater@example.com",
      "strict_min_version": "57.0"
    }
  }
}