Examine source code of Private History

{
  "manifest_version": 2,
  "name": "Private Server History",
  "description": "This extension logs all the pages you visit to the server of your choice supporting a simple logging API.",
  "version": "0.1",
  "browser_action": {
    "default_icon": "icons/off.png"
  },
  "background": {
    "scripts": [
      "libs/browser-polyfill.min.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "libs/browser-polyfill.min.js",
        "content.js"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "history@novaschola.club",
      "strict_min_version": "90.0"
    }
  }
}