Examine source code of X Reply Filter

{
  "manifest_version": 2,
  "name": "X Reply Filter",
  "version": "0.1.0",
  "description": "Hide replies on X/Twitter by custom blacklist keywords.",
  "permissions": [
    "storage",
    "https://x.com/*",
    "https://twitter.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://x.com/*",
        "https://twitter.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "options.html",
    "browser_style": false
  },
  "browser_action": {
    "default_title": "X Reply Filter",
    "default_popup": "options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "x-reply-filter@example.local",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "113.0"
    }
  }
}