title: (Firefox bug) Font is sloppy when transformed
body: <p><strong><em>This question was orginally related to FontAwesome, but is a general firefox problem.</em></strong><br /></p>
  
  <p>So i'm using the class <code>fa-spin</code> that will spin the icon, <a href="http://fortawesome.github.io/Font-Awesome/examples/#spinning" rel="nofollow noreferrer">here</a> you can find some examples of it.</p>
  
  <p>Here is the spinning css file:</p>
  
  <pre><code>// Spinning Icons
  // --------------------------
  
  .#{$fa-css-prefix}-spin {
    -webkit-animation: spin 2s infinite linear;
    -moz-animation: spin 2s infinite linear;
    -moz-animation: spin 2s infinite linear;
    -o-animation: spin 2s infinite linear;
    animation: spin 2s infinite linear;
  }
  
  @-moz-keyframes spin {
    0% { -moz-transform: rotate(0deg); }
    100% { -moz-transform: rotate(359deg); }
  }
  @-webkit-keyframes spin {
    0% { -webkit-transform: rotate(0deg); }
    100% { -webkit-transform: rotate(359deg); }
  }
  @-o-keyframes spin {
    0% { -o-transform: rotate(0deg); }
    100% { -o-transform: rotate(359deg); }
  }
  @-ms-keyframes spin {
    0% { -ms-transform: rotate(0deg); }
    100% { -ms-transform: rotate(359deg); }
  }
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(359deg); }
  }
  </code></pre>
  
  <p>Now all works fine in chrome and IE10, however it doesn't in firefox :
  <a href="http://jsfiddle.net/HXEH4/1/" rel="nofollow noreferrer">jsFiddle</a>.
  When you run it for the first time it looks just good, but try the interact with the site(for example: scroll or run the script again in jsFiddle). The animation becomes all jittery. <br /> I have no idea what could cause this strange behavior, hope that anyone could help me.</p>
  
  <p><strong>Edit</strong></p>
  
  <p>The problem occurs on Windows 7 32-bit and 25.0 version of Firefox(No add-ons).
  However it does work at my home PC, where it also has Windows 7 32-bit 25.0 firefox.
  An preview how it looks on my screen:<br /> <img src="https://i.stack.imgur.com/tR2es.gif" />
  Note that it works for the first couple of seconds but after it will get jittery (this stuttering is because my .gif is bad). 
  <hr /><strong>See my answer for more information</strong></p>