diff --git a/mobile/android/base/java/org/mozilla/gecko/Experiments.java b/mobile/android/base/java/org/mozilla/gecko/Experiments.java
index ec41917efa7f..24baf57ef158 100644
--- a/mobile/android/base/java/org/mozilla/gecko/Experiments.java
+++ b/mobile/android/base/java/org/mozilla/gecko/Experiments.java
@@ -25,20 +25,12 @@ public class Experiments {
     // Show a system notification linking to a "What's New" page on app update.
     public static final String WHATSNEW_NOTIFICATION = "whatsnew-notification";
 
-    // Onboarding: "Features and Story". These experiments are determined
-    // on the client, they are not part of the server config.
-    public static final String ONBOARDING3_A = "onboarding3-a"; // Control: No first run
-    public static final String ONBOARDING3_B = "onboarding3-b"; // 4 static Feature + 1 dynamic slides
-    public static final String ONBOARDING3_C = "onboarding3-c"; // Differentiating features slides
-
     // Synchronizing the catalog of downloadable content from Kinto
     public static final String DOWNLOAD_CONTENT_CATALOG_SYNC = "download-content-catalog-sync";
 
     // Promotion for "Add to homescreen"
     public static final String PROMOTE_ADD_TO_HOMESCREEN = "promote-add-to-homescreen";
 
-    public static final String PREF_ONBOARDING_VERSION = "onboarding_version";
-
     // Promotion to bookmark reader-view items after entering reader view three times (Bug 1247689)
     public static final String TRIPLE_READERVIEW_BOOKMARK_PROMPT = "triple-readerview-bookmark-prompt";
 
@@ -70,13 +62,6 @@ public class Experiments {
     public static List<String> getActiveExperiments(Context c) {
         final List<String> experiments = new LinkedList<>();
         experiments.addAll(SwitchBoard.getActiveExperiments(c));
-
-        // Add onboarding version.
-        final String onboardingExperiment = GeckoSharedPrefs.forProfile(c).getString(Experiments.PREF_ONBOARDING_VERSION, null);
-        if (!TextUtils.isEmpty(onboardingExperiment)) {
-            experiments.add(onboardingExperiment);
-        }
-
         return experiments;
     }
 
diff --git a/mobile/android/base/java/org/mozilla/gecko/firstrun/FirstrunAnimationContainer.java b/mobile/android/base/java/org/mozilla/gecko/firstrun/FirstrunAnimationContainer.java
index 9d762d832312..4700f62e7710 100644
--- a/mobile/android/base/java/org/mozilla/gecko/firstrun/FirstrunAnimationContainer.java
+++ b/mobile/android/base/java/org/mozilla/gecko/firstrun/FirstrunAnimationContainer.java
@@ -66,10 +66,6 @@ public class FirstrunAnimationContainer extends LinearLayout {
             onFinishListener.onFinish();
         }
         animateHide();
-
-        // Stop all versions of firstrun A/B sessions.
-        Telemetry.stopUISession(TelemetryContract.Session.EXPERIMENT, Experiments.ONBOARDING3_B);
-        Telemetry.stopUISession(TelemetryContract.Session.EXPERIMENT, Experiments.ONBOARDING3_C);
     }
 
     private void animateHide() {