Examine source code of Block Yourself from Analytics

{
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "block-yourself-from-analytics@igor.jerosimic",
      "strict_min_version": "55.0"
    }
  },
  "offline_enabled": true,
  "name": "Block Yourself from Analytics",
  "version": "3.4.0",
  "description": "Block your Google Analytics™ activity for the websites you own, no more false stats.",
  "homepage_url": "https://www.igorware.com/extensions/block-yourself-from-analytics?referrer-ver=firefox-ext-manager",
  "developer": {
    "name": "Igor Jerosimić",
    "url": "https://www.igorware.com/extensions/block-yourself-from-analytics"
  },
  "background": {
    "scripts": [
      "logger.js",
      "cross.js",
      "storage.js",
      "background.js"
    ],
    "persistent": true
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true,
    "open_in_tab": true
  },
  "icons": {
    "16": "images/icon-016.png",
    "19": "images/icon-019.png",
    "32": "images/icon-032.png",
    "38": "images/icon-038.png",
    "48": "images/icon-048.png",
    "64": "images/icon-064.png",
    "128": "images/icon-128.png"
  },
  "browser_action": {
    "default_title": "Extension not available for this website",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/icon-disabled-016.png",
      "19": "images/icon-disabled-019.png",
      "32": "images/icon-disabled-032.png",
      "38": "images/icon-disabled-038.png"
    }
  },
  "content_security_policy": "default-src 'self'; connect-src https://api.igorware.com; font-src 'none'; img-src 'self' data:; object-src 'none'; style-src 'unsafe-inline'",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "storage",
    "tabs",
    "http://*/*",
    "https://*/*"
  ]
}