Examine source code of LibRedirect

{
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "1.7.0",
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "7esoorv3@alefvanoon.anonaddy.me",
      "strict_min_version": "67.0"
    }
  },
  "background": {
    "page": "pages/background/background.html",
    "persistent": true
  },
  "icons": {
    "16": "assets/images/libredirect-16.png",
    "32": "assets/images/libredirect-32.png",
    "48": "assets/images/libredirect-48.png",
    "128": "assets/images/libredirect-128.png"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "storage",
    "cookies",
    "contextMenus",
    "<all_urls>"
  ],
  "browser_action": {
    "default_title": "__MSG_extensionName__",
    "browser_style": false,
    "default_popup": "pages/popup/popup.html",
    "default_icon": {
      "16": "assets/images/libredirect-16.png",
      "32": "assets/images/libredirect-32.png",
      "48": "assets/images/libredirect-48.png",
      "128": "assets/images/libredirect-128.png"
    }
  },
  "options_ui": {
    "page": "pages/options/general/general.html",
    "browser_style": false,
    "open_in_tab": true
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "__MSG_extensionName__",
      "keyword": "libredirect",
      "favicon_url": "https://raw.githubusercontent.com/libredirect/libredirect/master/src/assets/images/libredirect-16.png",
      "search_url": "https://libredirect.invalid/?q={searchTerms}",
      "encoding": "UTF-8",
      "is_default": false
    }
  },
  "commands": {
    "switchInstance": {
      "suggested_key": {
        "default": "Alt+Shift+L"
      },
      "description": "__MSG_switchInstance__"
    }
  },
  "default_locale": "en",
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}