Examine source code of GAFAM Firewall

{
  "manifest_version": 2,
  "name": "gafam-firewall",
  "author": "Free Sofware Movement of India",
  "version": "0.1.6",
  "homepage_url": "https://code.swecha.org/webext/gafam-firewall",
  "description": "Get more control over GAFAM sites and cloud services",
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "js/background/background.js",
        "popup/popup.js",
        "js/background/warningMessages.js"
      ]
    }
  ],
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "storage",
    "tabs",
    "activeTab",
    "dns"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self';",
  "page_action": {
    "browser_style": true,
    "show_matches": [
      "*://*/*"
    ],
    "default_icon": {
      "19": "images/icon.png",
      "38": "images/icon.png"
    },
    "default_title": "GAFAM Firewall",
    "default_popup": "popup/index.html"
  },
  "background": {
    "scripts": [
      "data/domains.js",
      "data/CIDRBlocks.js",
      "js/lib/publicsuffixlist.min.js",
      "js/lib/uritools.js",
      "js/lib/ipaddr.min.js",
      "js/lib/ipRangeCheck.js",
      "js/background/warningMessages.js",
      "js/background/background.js"
    ],
    "persistent": true
  },
  "web_accessible_resources": [
    "/alert/alert.html",
    "popup/popup.html"
  ]
}