title: Firefox does not open when debugging in Visual Studio Code
body: <p>When I start debugging with my launch configuration for Chrome, the browser opens. But when I use my launch configuration for Firefox, the browser does not open. A Firefox process is started though. There are no error messages.</p>
  
  <ul>
  <li>Visual Studio Code 1.36.1</li>
  <li><a href="https://marketplace.visualstudio.com/items?itemName=hbenl.vscode-firefox-debug" rel="noreferrer">Debugger for Firefox</a> 1.8.1</li>
  <li>Firefox 68.0.1</li>
  <li>Windows 10 1803</li>
  <li>Angular 7.0.0 (should not matter)</li>
  </ul>
  
  <p>.vscode/launch.json:</p>
  
  <pre><code>{
      "version": "0.2.0",
      "configurations": [
        {
          "type": "chrome",
          "request": "launch",
          "name": "Chrome + localhost",
          "url": "http://localhost:4200",
          "webRoot": "${workspaceFolder}"
        },
        {
          "type": "firefox",
          "request": "launch",
          "reAttach": true,
          "name": "Firefox + localhost",
          "url": "http://localhost:4200",
          "webRoot": "${workspaceFolder}"
        },
      ]
    }
  </code></pre>