Examine source code of NoHistory

{
  "author": "QuanMCPC",
  "manifest_version": 2,
  "name": "NoHistory",
  "version": "0.0.12",
  "description": "When you want to hide something, but don't want to open a private window.",
  "permissions": [
    "activeTab",
    "tabs",
    "history",
    "storage",
    "unlimitedStorage"
  ],
  "background": {
    "scripts": [
      "background/background.js"
    ]
  },
  "icons": {
    "32": "icons/nohistory-logo-32.png",
    "64": "icons/nohistory-logo-64.png",
    "128": "icons/nohistory-logo-128.png",
    "256": "icons/nohistory-logo-256.png",
    "512": "icons/nohistory-logo-512.png"
  },
  "browser_action": {
    "default_icon": "icons/nohistory-logo-512.png",
    "default_title": "NoHistory",
    "default_popup": "popup/nohistory_page.html"
  },
  "options_ui": {
    "page": "setting/index.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{785028b8-eb05-4385-92da-51da01967340}"
    }
  }
}