Examine source code of Gaming News Feed

{
  "manifest_version": 2,
  "name": "Gaming News Feed",
  "version": "1.1.1",
  "description": "News about gaming from around the web. A gamer's must!",
  "author": "Mania Tech Ltd",
  "homepage_url": "https://bethegamepro.com/",
  "options_page": "settings.html",
  "browser_specific_settings": {
    "gecko": {
      "id": "gamingnews@togonetworksltd.com",
      "strict_min_version": "58.0"
    }
  },
  "background": {
    "page": "main.html",
    "persistent": false
  },
  "icons": {
    "16": "assets/icons/16x16.png",
    "96": "assets/icons/96x96.png",
    "128": "assets/icons/128x128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "assets/icons/16x16.png"
    },
    "default_title": "Gaming News Feed"
  },
  "permissions": [
    "cookies",
    "storage",
    "*://*.bethegamepro.com/*"
  ],
  "chrome_url_overrides": {
    "newtab": "index.html"
  }
}