Examine source code of Ethira Security

{
  "manifest_version": 3,
  "name": "Ethira Security",
  "description": "Secure Browser Usage",
  "version": "0.2.5",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "tabs",
    "idle",
    "alarms",
    "identity",
    "webRequest",
    "webRequestBlocking"
  ],
  "host_permissions": [
    "https://api.ethira.dev/*",
    "https://dz81cz2dxhrj.cloudfront.net/*",
    "<all_urls>"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'; connect-src 'self' https://api.ethira.dev https://dz81cz2dxhrj.cloudfront.net https://*.sentry.io;"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "blocked.html"
      ],
      "matches": [
        "<all_urls>"
      ],
      "use_dynamic_url": true
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "browser-extension-maintenance@ethira.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "browsingActivity",
          "personallyIdentifyingInfo",
          "authenticationInfo",
          "websiteActivity",
          "websiteContent"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Ethira Browser Monitor",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_idle",
      "js": [
        "content-scripts/auth-event-detector.js",
        "content-scripts/pii-interceptor-relay.js",
        "content-scripts/user-interaction-counter.js"
      ],
      "world": "ISOLATED"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "run_at": "document_start",
      "js": [
        "content-scripts/enforcement-overlay.js",
        "content-scripts/resource-observer.js"
      ],
      "world": "ISOLATED"
    },
    {
      "matches": [
        "https://claude.ai/*",
        "https://cursor.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/mcp-tool-call-detector.js"
      ],
      "world": "MAIN"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_idle",
      "js": [
        "content-scripts/outbound-request-pii-interceptor.js"
      ],
      "world": "MAIN"
    }
  ]
}