Examine source code of chibisafe Uploader

{
  "manifest_version": 2,
  "name": "chibisafe Uploader",
  "description": "Uploader for chibisafe",
  "version": "2.0.1",
  "options_ui": {
    "page": "settings.html",
    "open_in_tab": true
  },
  "icons": {
    "48": "images/logo-48x48.png",
    "128": "images/logo-128x128.png"
  },
  "permissions": [
    "contextMenus",
    "storage",
    "notifications",
    "scripting",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "libs/browser-polyfill.min.js",
      "js/background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d3b63cb0-24d5-40ea-8d63-d8a5f6112625}"
    }
  }
}