title: High contrast CSS or JavaScript detection for Firefox
body: <p>I'm trying to style a high contrast version of a site. The following code works fine for IE and Edge, but I need to detect Firefox.</p>
  <pre><code>@media screen and (-ms-high-contrast: active) {}
  </code></pre>
  <p>I could also use JavaScript detection for high contrast and Firefox. Any advice?</p>