Examine source code of Tidy Bookmarks

{
  "manifest_version": 2,
  "name": "Tidy Bookmarks",
  "version": "1.6",
  "description": "Easily accomplish search and replace actions on your bookmark titles.",
  "author": "James Mathies",
  "icons": {
    "39": "icons/icon-big.png"
  },
  "permissions": [
    "bookmarks",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{3db7cd1b-1953-4336-a514-135104e5cfd9}"
    }
  },
  "browser_action": {
    "browser_style": true,
    "default_popup": "content/popup.html",
    "default_icon": {
      "19": "icons/icon-small.png",
      "38": "icons/icon-big.png"
    },
    "default_title": "Tidy Bookmarks"
  },
  "background": {
    "scripts": [
      "main.js"
    ]
  }
}