Examine source code of Comment Vibe: on-device check

{
  "manifest_version": 3,
  "name": "Comment Vibe",
  "short_name": "Comment Vibe",
  "description": "See how your comment sounds before you post. On-device AI tone check. 100% private — nothing leaves Firefox.",
  "version": "1.2.5",
  "browser_specific_settings": {
    "gecko": {
      "id": "comment-vibe@dzienko.dev",
      "strict_min_version": "134.0"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Comment Vibe",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png"
    }
  },
  "optional_permissions": [
    "trialML"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ]
}