title: Firefox not applying computed styles
body: <p>I am using FF version 52.0. I have changes made to a style sheet and Firefox is not applying them. I can see that Firefox is grabbing the style sheet with updates AND when inspecting can see that under computer styles that it is registering my changes. However when I inspect the Rules, those computed rules are not present on the element I'm attempting to alter.</p>
  
  <p>I have tested this in FF Private windows, off my machine, cleared caches in Advanced, all with the same result. Adding -moz- prefix for transform also appears to make no difference. Ideas anyone?</p>
  
  <ul>
  <li>Firefox, there are other computed classes that are not applied</li>
  <li>Firefox, computed classes not applied</li>
  <li>Chrome, computed styles applied</li>
  </ul>
  
  <p><a href="https://i.stack.imgur.com/ubAIN.jpg" rel="nofollow noreferrer">Firefox Does Not Apply Some Computed Styles</a></p>