Examine source code of Monitor Outgoing Requests

{
  "manifest_version": 2,
  "name": "Monitor Outgoing Requests",
  "version": "1.0",
  "description": "Allows you to monitor outgoing requests",
  "homepage_url": "https://github.com/ThomazPom/Moz-Ext-Monitor-Outgoing-Requests/",
  "icons": {
    "48": "icons/48.png",
    "96": "icons/2x.png"
  },
  "permissions": [
    "<all_urls>",
    "tabs",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "storage",
    "unlimitedStorage"
  ],
  "browser_action": {
    "default_icon": "icons/38.png",
    "default_title": "Requests are monitored",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}