Examine source code of Fire Find

{
  "name": "Fire Find",
  "short_name": "Quick Find in web pabge",
  "version": "1.0.1",
  "manifest_version": 2,
  "description": "Quick Find features. Search results in one location. Navigate to links in just a few keystrokes.",
  "icons": {
    "16": "images/icons/icon16.png",
    "48": "images/icons/icon48.png",
    "128": "images/icons/icon128.png"
  },
  "applications": {
    "gecko": {
      "id": "@firefind",
      "strict_min_version": "57.0"
    }
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "images/icons/icon16.png"
    }
  },
  "content_scripts": [
    {
      "js": [
        "js/lib/jquery-3.6.0.js",
        "js/utility.js",
        "js/text-search.js"
      ],
      "css": [
        "css/styles.css"
      ],
      "matches": [
        "http://*/*",
        "https://*/*",
        "ftp://*/*",
        "<all_urls>"
      ],
      "all_frames": true
    }
  ],
  "permissions": [
    "tabs"
  ],
  "web_accessible_resources": [
    "fonts/*",
    "images/sprites*"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "commands": {
    "quick-find-search-all": {
      "description": "Search all text",
      "suggested_key": {
        "default": "Ctrl+Shift+O",
        "mac": "MacCtrl+Shift+O"
      }
    },
    "quick-find-search-links": {
      "description": "Search all links"
    }
  }
}