title: How to enable CORS on Firefox
body: <p>How can I allow <a href="https://en.wikipedia.org/wiki/Cross-origin_resource_sharing" rel="nofollow noreferrer">CORS</a> on Firefox?</p>
  <p>I easily managed it on Chrome and Internet Explorer, but I am totally failing at it with Firefox. I edited the following <em>about:config</em> entry</p>
  <pre><code>security.fileuri.strict_origin_policy = false
  </code></pre>
  <p>This attempt has been posted several times here and is told on other sites too, but it doesn't have any effect. I read the Mozilla guide to <a href="https://en.wikipedia.org/wiki/Same-origin_policy" rel="nofollow noreferrer">same-origin policies</a>:</p>
  <p><em><a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS" rel="nofollow noreferrer">Cross-Origin Resource Sharing (CORS)</a></em></p>
  <p>but it just explains CORS and the related topics. A workaround to enable it on Firefox is not listed.</p>
  <p>Is there a definitive solution?</p>
  <p>PS: FORCECORS does not work either somehow...</p>