Examine source code of Mailwipe TempMail

{
  "manifest_version": 2,
  "name": "Mailwipe TempMail",
  "version": "1.0",
  "description": "Your temporary email always next to your browser",
  "icons": {
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "permissions": [
    "storage",
    "https://mailwipe.eu/*",
    "https://challenges.cloudflare.com/*",
    "https://api.cookieyes.com/*",
    "https://cdn-cookieyes.com/*",
    "https://log.cookieyes.com/*",
    "https://cdn.lordicon.com/*",
    "https://cdn.jsdelivr.net/*",
    "webRequest",
    "webRequestBlocking",
    "cookies"
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval' https://challenges.cloudflare.com https://api.cookieyes.com https://cdn-cookieyes.com https://cdn.lordicon.com https://cdn.jsdelivr.net https://mailwipe.eu; object-src 'self'; frame-src https://mailwipe.eu https://challenges.cloudflare.com; connect-src 'self' https://mailwipe.eu https://challenges.cloudflare.com https://api.cookieyes.com https://log.cookieyes.com https://cdn.lordicon.com https://cdn.jsdelivr.net; form-action 'self' https://mailwipe.eu;",
  "browser_action": {
    "default_title": "Mailwipe",
    "default_icon": {
      "48": "icon-48.png"
    }
  },
  "sidebar_action": {
    "default_panel": "sidebar.html",
    "default_title": "Mailwipe",
    "default_icon": {
      "48": "icon-48.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "firefox-extension-hubshield@mailwipe.eu",
      "strict_min_version": "91.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  }
}