Examine source code of Cookie Editor

{
  "version": "0.1.0.1",
  "manifest_version": 2,
  "name": "Cookie Editor",
  "offline_enabled": true,
  "short_name": "cookie-editor",
  "background": {
    "page": "lib/chrome/background.html"
  },
  "homepage_url": "https://mybrowseraddon.com/cookie-editor.html",
  "permissions": [
    "storage",
    "cookies",
    "*://*/*",
    "contextMenus"
  ],
  "description": "Easily view and edit cookies for any website via toolbar popup!",
  "browser_action": {
    "default_title": "Cookie Editor",
    "default_popup": "data/popup/popup.html",
    "default_icon": {
      "16": "data/icons/16.png",
      "32": "data/icons/32.png",
      "48": "data/icons/48.png",
      "64": "data/icons/64.png"
    }
  },
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8b4d9186-dc72-4434-bd95-367da79dafcb}"
    }
  }
}