Add initial version

netflix-speed.user.js

@@ -0,0 +1,34 @@
+// ==UserScript==
+// @name netflix-speed
+// @version 0.1
+// @include https://www.netflix.com/watch/*
+// ==/UserScript==
+
+var speed_control = document.createElement('select');
+speed_control.style.cssText = `
+border:none;
+-moz-appearance: none;
+-webkit-appearance: none;
+appearance: none;
+cursor: pointer;
+background: none;
+`;
+speed_control.onchange = function() {
+  document.getElementsByClassName('VideoContainer')[0].getElementsByTagName('video')[0].playbackRate = this.value;
+};
+speed_control.innerHTML = `<option value=0.5>0.5</option>
+<option value=0.75>0.75</option>
+<option value=1.0 selected="selected">Normal</option>
+<option value=1.25>1.25</option>
+<option value=1.5>1.5</option>
+<option value=1.75>1.75</option>
+<option value=2.0>2.0</option>`;
+function append(){
+  if(!document.getElementsByClassName('PlayerControlsNeo__controls-group').length) {
+    setTimeout(append, 200);
+  } else {
+    console.log(document.getElementsByClassName('PlayerControlsNeo__controls-group')[0]);
+    document.getElementsByClassName('PlayerControlsNeo__controls-group')[0].appendChild(speed_control);
+  }
+}
+append();