title: Npm does not install firebase package?
body: <p>Command-line : <code>npm install --save firebase</code></p>
  <p>Expected: Installed package</p>
  <p>Happened :  <code>[..................] / rollbackFailedOptional: verb npm-session 72b1a7f7c9f9038f</code> and blocked here.</p>
  <p>I tried to clean up the cache: <code>npm cache clean--force</code></p>
  <p>But nothing changed.</p>
  <p>It happened only with the Firebase package.</p>