Examine source code of FreeMP3Download.net Search

{
  "manifest_version": 2,
  "name": "FreeMP3Download.net Search",
  "short_name": "FreeMP3 Search",
  "description": "Adds an option to search on Free-MP3-Download.net. Was developed to fix encoding problem when ?q= parameter is passed to site.",
  "version": "1.0.1",
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "65.0",
      "id": "{b978b520-b300-4265-b635-a6bd9b0ebb59}"
    }
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Free-MP3-Download.net",
      "search_url": "https://www.free-mp3-download.net/?search={searchTerms}",
      "keyword": "freemp3",
      "favicon_url": "https://free-mp3-download.net/img/icon_512.png",
      "is_default": false,
      "encoding": "UTF-8"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.free-mp3-download.net/?search=*"
      ],
      "js": [
        "./fixEncoding.js"
      ],
      "run_at": "document_start",
      "all_frames": false,
      "match_about_blank": false
    }
  ],
  "icons": {
    "32": "./assets/icon_32.png",
    "48": "./assets/icon_48.png",
    "64": "./assets/icon_64.png",
    "96": "./assets/icon_96.png",
    "128": "./assets/icon_128.png",
    "256": "./assets/icon_256.png",
    "512": "./assets/icon_512.png"
  },
  "author": "moony aka Danila Kononov",
  "developer": {
    "name": "moony aka Danila Kononov",
    "url": "https://github.com/i-Moony/freemp3-search-fix/"
  }
}