diff --git a/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoAppShell.java b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoAppShell.java
index 0c5103d0b782..e9bf9b08887e 100644
--- a/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoAppShell.java
+++ b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoAppShell.java
@@ -66,8 +66,6 @@ import android.location.LocationListener;
 import android.location.LocationManager;
 import android.media.AudioManager;
 import android.net.ConnectivityManager;
-import android.net.LinkProperties;
-import android.net.Network;
 import android.net.NetworkInfo;
 import android.os.Build;
 import android.os.Bundle;
@@ -1233,27 +1231,6 @@ public class GeckoAppShell {
         }
     }
 
-    @WrapForJNI(calledFrom = "gecko")
-    private static String getDNSDomains() {
-        if (Build.VERSION.SDK_INT < 21) {
-            return "";
-        }
-
-        ConnectivityManager cm = (ConnectivityManager)
-            getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);
-        Network net = cm.getActiveNetwork();
-        if (net == null) {
-            return "";
-        }
-
-        LinkProperties lp = cm.getLinkProperties(net);
-        if (lp == null) {
-            return "";
-        }
-
-        return lp.getDomains();
-    }
-
     @WrapForJNI(calledFrom = "gecko")
     private static int[] getSystemColors() {
         // attrsAppearance[] must correspond to AndroidSystemColors structure in android/AndroidBridge.h
diff --git a/netwerk/system/android/nsAndroidNetworkLinkService.cpp b/netwerk/system/android/nsAndroidNetworkLinkService.cpp
index 7751898e27a6..cec0209505ce 100644
--- a/netwerk/system/android/nsAndroidNetworkLinkService.cpp
+++ b/netwerk/system/android/nsAndroidNetworkLinkService.cpp
@@ -134,22 +134,7 @@ nsAndroidNetworkLinkService::GetNetworkID(nsACString& aNetworkID) {
 NS_IMETHODIMP
 nsAndroidNetworkLinkService::GetDnsSuffixList(
     nsTArray<nsCString>& aDnsSuffixList) {
-  aDnsSuffixList.Clear();
-  if (!mozilla::AndroidBridge::Bridge()) {
-    NS_WARNING("GetDnsSuffixList is not supported without a bridge connection");
-    return NS_ERROR_NOT_AVAILABLE;
-  }
-
-  auto suffixList = java::GeckoAppShell::GetDNSDomains();
-  if (!suffixList) {
-    return NS_OK;
-  }
-
-  nsAutoCString list(suffixList->ToCString());
-  for (const nsACString& suffix : list.Split(',')) {
-    aDnsSuffixList.AppendElement(suffix);
-  }
-  return NS_OK;
+  return NS_ERROR_NOT_IMPLEMENTED;
 }
 
 void nsAndroidNetworkLinkService::OnNetworkChanged() {