Examine source code of Causevest

{
  "manifest_version": 2,
  "name": "Causevest",
  "description": "",
  "version": "1.18338",
  "browser_specific_settings": {
    "gecko": {
      "id": "xcv.causevest@gmail.com"
    }
  },
  "background": {
    "page": "/pages/background.html",
    "persistent": true
  },
  "browser_action": {
    "default_icon": {
      "16": "/icons/mainIco16.png",
      "24": "/icons/mainIco24.png",
      "32": "/icons/mainIco32.png",
      "48": "/icons/mainIco48.png",
      "128": "/icons/mainIco128.png"
    },
    "default_popup": "/pages/mainPopup.html"
  },
  "icons": {
    "16": "/icons/mainIco16.png",
    "24": "/icons/mainIco24.png",
    "32": "/icons/mainIco32.png",
    "48": "/icons/mainIco48.png",
    "128": "/icons/mainIco128.png"
  },
  "permissions": [
    "tabs",
    "cookies",
    "storage",
    "identity",
    "https://www.facebook.com/",
    "https://graph.facebook.com/",
    "https://apis.google.com",
    "*://*.google.com/*",
    "activeTab",
    "http://mozilla.com",
    "*://domain/*",
    "http://localhost/*",
    "https://ext.causevest.io/api/",
    "webRequestBlocking",
    "https://graph.facebook.com/oauth/access_token",
    "https://t2.gstatic.com/faviconV2"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*",
        "<all_urls>",
        "*://*.mozilla.org/*"
      ],
      "exclude_matches": [
        "*://developer.mozilla.org/*"
      ],
      "js": [
        "scripts/layers/content/mainContentScript.js",
        "scripts/layers/background/mainBackgroundScript.js",
        "scripts/pageScripts/login-register/sign-in-sign-up.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "https://p391877.clksite.com/adServe/banners?tid=391877_769714_0",
    "https://prettyspeech.gf-soft.com/ads.html",
    "styles/ads/ads-style.css",
    "icons/Close-X.png",
    "scripts/layers/content/resizer.js",
    "pages/main.html",
    "styles/common/themes/ads/blue.css",
    "styles/common/themes/ads/coral.css",
    "styles/common/themes/ads/lilac.css",
    "styles/common/themes/ads/yellow.css",
    "styles/common/Roboto.css",
    "fonts/Roboto/roboto-v20-latin-regular.woff",
    "fonts/Roboto/roboto-v20-latin-regular.ttf",
    "fonts/Roboto/roboto-v20-latin-regular.woff2",
    "fonts/Roboto/roboto-v20-latin-regular.svg",
    "fonts/Roboto/roboto-v20-latin-regular.eot"
  ]
}