Examine source code of Urban Shield

{
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "version": "5.6.0",
  "homepage_url": "https://www.urban-vpn.com/",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "bg/build.js",
      "ad-blocker/background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": "icons/icon_grey.png",
    "default_title": "Urban Shield",
    "default_popup": "popup/index.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "ad-blocker/content.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "match_about_blank": true
    },
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "content/post_api.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "content/location.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "all_frames": false,
      "js": [
        "content/safecheck-notification/content.js",
        "content/safecheck.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end"
    }
  ],
  "icons": {
    "16": "icons/icon.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "tabs",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "proxy",
    "management",
    "alarms",
    "storage",
    "browsingData",
    "<all_urls>",
    "https://sessions.bugsnag.com/*",
    "https://notify.bugsnag.com/*",
    "https://*.urban-vpn.com/*",
    "https://google-analytics.com/*",
    "https://www.google-analytics.com/*",
    "https://ssl.google-analytics.com/*"
  ],
  "web_accessible_resources": [
    "/bg/proxy-script.js",
    "/content/safecheck-notification/notification-iframe/index.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "91.1.0",
      "id": "{e25fb70d-3892-456f-a698-f8f8bd749e23}"
    }
  }
}