mdn-search

1. Select text
2. right click
3. Left click "mdn search"

The above picture will use a browser to open "https://developer.mozilla.org/en-US/search?q=alert"

If you want to open "https://developer.mozilla.org/zh-CN/search?q=alert", then you need to add in "settings.json"

{
  "mdnSearch.url": "https://developer.mozilla.org/zh-CN/search?q=${q}"
}

publish

$ npm run vscode:prepublish
$ vsce publish