title: How does Firebase command-line login work?
body: <p>I am trying out Firebase / Firestore. When I run the command-line <code>firebase login</code> in a Linux terminal, I am redirected to the typical Google login web-site but with an additional Firebase-logo. After login on that web-site, I have to enable various features and permissions for Firebase to access my Google account.</p>
  <p>Then the <code>firebase</code> program on my local Linux PC knows that I have logged in to my Google account. Even after I restart the computer, the <code>firebase</code> program is apparently still logged in to my Google account.</p>
  <p>How does this work behind the scenes? Is my Google account password stored on my local PC somewhere, since <code>firebase</code> remains logged in to the account? Doesn't that cause a security risk?</p>
  <p>Thanks!</p>