Examine source code of Blocket Sökplugin

{
  "manifest_version": 2,
  "name": "Blocket Sökplugin",
  "version": "1.1",
  "description": "Lägger till Blocket som sökmotor i Firefox.",
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Blocket",
      "search_url": "https://www.blocket.se/annonser/hela_sverige?q={searchTerms}",
      "favicon_url": "https://www.blocket.se/favicon.ico",
      "encoding": "UTF-8"
    }
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0aabff9c-cba5-4535-9a0a-397c2cfd83cc}"
    }
  }
}