diff --git a/YouTube - YouTube to Invidious.user.js b/YouTube - YouTube to Invidious.user.js
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+++ b/YouTube - YouTube to Invidious.user.js	
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+// ==UserScript==
+// @name        YouTube - YouTube to Invidious
+// @namespace   youtube-to-invidious
+// @match        *://*.youtube.com/*
+// @version     1
+// @grant       none
+// ==/UserScript==
+
+var invidiousInstance = "https://invidio.xamh.de"
+
+var toYouTube = function() {
+  sessionStorage.setItem("yti-visityt",true)
+  location.reload()
+}
+
+var main = function() {
+  if (sessionStorage.getItem("yti-visityt") !== null) {
+    sessionStorage.removeItem("yti-visityt")
+    return
+  }
+  document.body.innerHTML = `
+<center style="background-color: rgba(0,0,0,0.5); color: white; width: 100%; height: 100%">
+<h1>YouTube to Invidious</h1>
+<a href="` +invidiousInstance + window.location.pathname + window.location.search + window.location.hash + `"><button>To Invidious (recommended)</button></a> <button id="toYouTube">To YouTube</button><br>
+Should Invidious not work, click "Back" in your browser, and then choose "To YouTube"<br>
+<br>
+<i>To get back to this site:</i><br>
+<b>From Invidious:</b> Click "Watch on YouTube" or click a YouTube-icon<br>
+<b>From YouTube:</b> Reload page
+</center>
+`
+  document.getElementById("toYouTube").onclick = toYouTube
+}
+
+main()
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