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manifest.json

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "MDN Search for Developers",
  "description": "Make MDN (Mozilla Developer Network) as your search engine",
  "chrome_settings_overrides": {
    "homepage": "https://developer.mozilla.org/en-US/",
    "search_provider": {
      "name": "MDN (Mozilla Developer Network)",
      "search_url": "https://developer.mozilla.org/en-US/search",
      "is_default": true,
      "favicon_url": "https://t1.gstatic.com/faviconV2?client=SOCIAL&type=FAVICON&fallback_opts=TYPE,SIZE,URL&url=https://developer.mozilla.org/en-US/&size=32",
      "keyword": "@mdn",
      "search_url_get_params": "?q={searchTerms}"
    }
  },
  "icons": {
    "64": "icons/icon64.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cdb1615d-5006-4fdd-9c73-790aaae36f61}"
    }
  }
}