diff --git a/bedrock/firefox/templates/firefox/whatsnew/whatsnew-fx68-trailhead.html b/bedrock/firefox/templates/firefox/whatsnew/whatsnew-fx68-trailhead.html
index 544de1eb7e5..657ec971739 100644
--- a/bedrock/firefox/templates/firefox/whatsnew/whatsnew-fx68-trailhead.html
+++ b/bedrock/firefox/templates/firefox/whatsnew/whatsnew-fx68-trailhead.html
@@ -8,10 +8,12 @@
 
 {% block experiments %}
   {% if switch('experiment_whatsnew_68', ['en-US','en-CA','en-GB','fr','de']) %}
-    {% if LANG in ['en-US', 'en-GB'] %}
-      {{ js_bundle('experiment-whatsnew-68-enUSGB') }}
+    {% if LANG == 'en-US' %}
+      {{ js_bundle('experiment-whatsnew-68-enUS') }}
     {% elif LANG == 'en-CA' %}
       {{ js_bundle('experiment-whatsnew-68-enCA') }}
+    {% elif LANG == 'en-GB' %}
+      {{ js_bundle('experiment-whatsnew-68-enGB') }}
     {% elif LANG == 'fr' %}
       {{ js_bundle('experiment-whatsnew-68-fr') }}
     {% elif LANG == 'de' %}
diff --git a/media/js/firefox/whatsnew/experiment-whatsnew-68-de.js b/media/js/firefox/whatsnew/experiment-whatsnew-68-de.js
index 4d930c09a60..f4c1cd7d7cc 100644
--- a/media/js/firefox/whatsnew/experiment-whatsnew-68-de.js
+++ b/media/js/firefox/whatsnew/experiment-whatsnew-68-de.js
@@ -30,11 +30,11 @@
         var deckard = new Mozilla.TrafficCop({
             id: 'experiment_firefox_whatsnew_68',
             variations: {
-                'v=a': 2,  // control
-                'v=b': 2,  // new layout, light
-                'v=c': 2,  // new layout, dark
-                'v=d': 2,  // notification favicon
-                'v=e': 2   // monitor CTA
+                'v=a': 10,  // control
+                'v=b': 10,  // new layout, light
+                'v=c': 10,  // new layout, dark
+                'v=d': 10,  // notification favicon
+                'v=e': 10   // monitor CTA
             }
         });
 
diff --git a/media/js/firefox/whatsnew/experiment-whatsnew-68-enCA.js b/media/js/firefox/whatsnew/experiment-whatsnew-68-enCA.js
index f197f081aeb..43dcc6ce738 100644
--- a/media/js/firefox/whatsnew/experiment-whatsnew-68-enCA.js
+++ b/media/js/firefox/whatsnew/experiment-whatsnew-68-enCA.js
@@ -30,11 +30,11 @@
         var deckard = new Mozilla.TrafficCop({
             id: 'experiment_firefox_whatsnew_68',
             variations: {
-                'v=a': 4,  // control
-                'v=b': 4,  // new layout, light
-                'v=c': 4,  // new layout, dark
-                'v=d': 4,  // notification favicon
-                'v=e': 4   // monitor CTA
+                'v=a': 14,  // control
+                'v=b': 14,  // new layout, light
+                'v=c': 14,  // new layout, dark
+                'v=d': 14,  // notification favicon
+                'v=e': 14   // monitor CTA
             }
         });
 
diff --git a/media/js/firefox/whatsnew/experiment-whatsnew-68-enUSGB.js b/media/js/firefox/whatsnew/experiment-whatsnew-68-enGB.js
similarity index 84%
rename from media/js/firefox/whatsnew/experiment-whatsnew-68-enUSGB.js
rename to media/js/firefox/whatsnew/experiment-whatsnew-68-enGB.js
index 1328a925105..4d930c09a60 100644
--- a/media/js/firefox/whatsnew/experiment-whatsnew-68-enUSGB.js
+++ b/media/js/firefox/whatsnew/experiment-whatsnew-68-enGB.js
@@ -30,11 +30,11 @@
         var deckard = new Mozilla.TrafficCop({
             id: 'experiment_firefox_whatsnew_68',
             variations: {
-                'v=a': 1,  // control
-                'v=b': 1,  // new layout, light
-                'v=c': 1,  // new layout, dark
-                'v=d': 1,  // notification favicon
-                'v=e': 1   // monitor CTA
+                'v=a': 2,  // control
+                'v=b': 2,  // new layout, light
+                'v=c': 2,  // new layout, dark
+                'v=d': 2,  // notification favicon
+                'v=e': 2   // monitor CTA
             }
         });
 
diff --git a/media/js/firefox/whatsnew/experiment-whatsnew-68-enUS.js b/media/js/firefox/whatsnew/experiment-whatsnew-68-enUS.js
new file mode 100644
index 00000000000..4c9b9c7ccf5
--- /dev/null
+++ b/media/js/firefox/whatsnew/experiment-whatsnew-68-enUS.js
@@ -0,0 +1,44 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+(function() {
+    'use strict';
+
+    // Exclude signed in users
+    function fxaSignedOut() {
+        Mozilla.Client.getFxaDetails(function(details) {
+            if (!details.setup) {
+                return true;
+            } else {
+                return false;
+            }
+        });
+    }
+
+    // courtesy of https://davidwalsh.name/query-string-javascript
+    function getUrlParam(name) {
+        name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
+        var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
+        var results = regex.exec(location.search);
+        return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
+    }
+
+    // if we already have a `v` parameter on the page, or the user is signed into Sync, don't enter into the experiment.
+    if (!getUrlParam('v') && fxaSignedOut) {
+        var deckard = new Mozilla.TrafficCop({
+            id: 'experiment_firefox_whatsnew_68',
+            variations: {
+                'v=a': 5,  // control
+                'v=b': 5,  // new layout, light
+                'v=c': 5,  // new layout, dark
+                'v=d': 5,  // notification favicon
+                'v=e': 5   // monitor CTA
+            }
+        });
+
+        deckard.init();
+    }
+
+})(window.Mozilla);
diff --git a/media/js/firefox/whatsnew/experiment-whatsnew-68-fr.js b/media/js/firefox/whatsnew/experiment-whatsnew-68-fr.js
index 8654b650e4a..43dcc6ce738 100644
--- a/media/js/firefox/whatsnew/experiment-whatsnew-68-fr.js
+++ b/media/js/firefox/whatsnew/experiment-whatsnew-68-fr.js
@@ -30,11 +30,11 @@
         var deckard = new Mozilla.TrafficCop({
             id: 'experiment_firefox_whatsnew_68',
             variations: {
-                'v=a': 3,  // control
-                'v=b': 3,  // new layout, light
-                'v=c': 3,  // new layout, dark
-                'v=d': 3,  // notification favicon
-                'v=e': 3   // monitor CTA
+                'v=a': 14,  // control
+                'v=b': 14,  // new layout, light
+                'v=c': 14,  // new layout, dark
+                'v=d': 14,  // notification favicon
+                'v=e': 14   // monitor CTA
             }
         });
 
diff --git a/media/static-bundles.json b/media/static-bundles.json
index 14fc91c8062..059c566da3d 100644
--- a/media/static-bundles.json
+++ b/media/static-bundles.json
@@ -1024,9 +1024,9 @@
       "files": [
         "js/libs/mozilla-traffic-cop.js",
         "js/base/mozilla-client.js",
-        "js/firefox/whatsnew/experiment-whatsnew-68-enUSGB.js"
+        "js/firefox/whatsnew/experiment-whatsnew-68-enUS.js"
       ],
-      "name": "experiment-whatsnew-68-enUSGB"
+      "name": "experiment-whatsnew-68-enUS"
     },
     {
       "files": [
@@ -1036,6 +1036,14 @@
       ],
       "name": "experiment-whatsnew-68-enCA"
     },
+    {
+      "files": [
+        "js/libs/mozilla-traffic-cop.js",
+        "js/base/mozilla-client.js",
+        "js/firefox/whatsnew/experiment-whatsnew-68-enGB.js"
+      ],
+      "name": "experiment-whatsnew-68-enGB"
+    },
     {
       "files": [
         "js/libs/mozilla-traffic-cop.js",