Examine source code of PII-Filter (NL)

{
  "manifest_version": 2,
  "name": "PII-Filter (NL)",
  "description": "Notifies you if there is an excessive usage of PII in a text field.",
  "version": "0.1.3",
  "icons": {
    "48": "assets/logos/a/PIIlogo.png",
    "96": "assets/logos/a/PIIlogo@2x.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "pii-filter@prolody.com",
      "strict_min_version": "42.0"
    }
  },
  "browser_action": {
    "browser_style": true,
    "default_popup": "assets/settings.html",
    "default_icon": {
      "16": "assets/logos/a/PIIlogo.png",
      "32": "assets/logos/a/PIIlogo.png"
    }
  },
  "permissions": [
    "tabs",
    "activeTab",
    "<all_urls>",
    "webNavigation",
    "storage"
  ],
  "web_accessible_resources": [
    "assets/info.png",
    "assets/logos/a/PIIlogo.png",
    "assets/fonts/webfonts/*.*"
  ],
  "background": {
    "page": "background.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "build/content.js"
      ],
      "run_at": "document_end"
    }
  ]
}