Due to some firewall issue, you may not able to install Chrome extension directly, in your Chrome browser. Alternatively, you can download the extension from somewhere else and install it.

  1. Find another machine which could reach Google, go to Chrome网上应用店
  2. Search the extension and get the URI, for example, Vue.js devtools, the URI is https://chrome.google.com/webstore/detail/vuejs-devtools/nhdogjmejiglipccpnnnanhbledajbpd?hl=zh-CN, copy this link.
  3. Go to a 3rd party site Chrome Extension Downloader,paste the above link and try download the extension.
  4. If luckly, you would get the downloaded extension in .crx format, drag it into Chrome and it would get installed automatically.