diff --git a/build.xml b/build.xml
index 1196fdb..7d679cc 100755
--- a/build.xml
+++ b/build.xml
@@ -420,6 +420,7 @@ Linux(because the top command will be run and the script will exit).\n\nBoth det
             <arg value="src/java/net/i2p/i2pfirefox/I2PChromiumProfileChecker.java"/>
             <arg value="src/java/net/i2p/i2pfirefox/I2PChromiumProfileUnpacker.java"/>
             <arg value="src/java/net/i2p/i2pfirefox/I2PFirefox.java"/>
+            <arg value="src/java/net/i2p/i2pfirefox/I2PLibreWolf.java"/>
             <arg value="src/java/net/i2p/i2pfirefox/I2PFirefoxProfileBuilder.java"/>
             <arg value="src/java/net/i2p/i2pfirefox/I2PFirefoxProfileChecker.java"/>
             <arg value="src/java/net/i2p/i2pfirefox/I2PFirefoxProfileUnpacker.java"/>
diff --git a/scripts/build.number b/scripts/build.number
index cec63e9..e48e4a6 100644
--- a/scripts/build.number
+++ b/scripts/build.number
@@ -1,3 +1,3 @@
 #Build Number for ANT. Do not edit!
-#Fri Dec 23 01:36:34 UTC 2022
-build.number=418
+#Fri Dec 23 03:06:30 UTC 2022
+build.number=420
diff --git a/src/build.xml b/src/build.xml
index b76b1af..1fdcca2 100644
--- a/src/build.xml
+++ b/src/build.xml
@@ -23,6 +23,11 @@
     <target name="build" depends="jar" />
     <target name="builddep">
     </target>
+    <target name="cp">
+     <exec executable="echo">
+        <arg value="${java.class.path}"></arg>
+     </exec>
+    </target>
 
     <property name="javac.compilerargs" value="" />
     <property name="javac.version" value="1.8" />
diff --git a/src/java/net/i2p/i2pfirefox/I2PFirefox.java b/src/java/net/i2p/i2pfirefox/I2PFirefox.java
index 22b7530..203c210 100644
--- a/src/java/net/i2p/i2pfirefox/I2PFirefox.java
+++ b/src/java/net/i2p/i2pfirefox/I2PFirefox.java
@@ -240,6 +240,16 @@ public class I2PFirefox extends I2PCommonBrowser {
 
   private static String[] NEARBY_FIREFOX_SEARCH_PATHS() {
     // obtain the PLUGIN environment variable
+    // crashreporterFolder := utl.CreateFolder(app.DataPath, "crashreporter")
+    // pluginsFolder := utl.CreateFolder(app.DataPath, "plugins")
+    SystemUtil.setenv("MOZ_CRASHREPORTER", "0");
+    SystemUtil.setenv("MOZ_CRASHREPORTER_DATA_DIRECTORY", crashreporterFolder);
+    SystemUtil.setenv("MOZ_CRASHREPORTER_DISABLE", "1");
+    SystemUtil.setenv("MOZ_CRASHREPORTER_NO_REPORT", "1");
+    SystemUtil.setenv("MOZ_DATA_REPORTING", "0");
+    SystemUtil.setenv("MOZ_MAINTENANCE_SERVICE", "0");
+    SystemUtil.setenv("MOZ_PLUGIN_PATH", pluginsFolder);
+    SystemUtil.setenv("MOZ_UPDATER", "0");
     String plugin = System.getenv("PLUGIN");
     if (plugin != null && !plugin.isEmpty()) {
       File userDir = new File(plugin);
@@ -593,20 +603,66 @@ public class I2PFirefox extends I2PCommonBrowser {
           if (!bashScript.canExecute()) {
             bashScript.setExecutable(true);
           }
-          return new ProcessBuilder(bashScript.getAbsolutePath())
-              .directory(I2PFirefoxProfileBuilder.runtimeDirectory(true));
+          ProcessBuilder pb = new ProcessBuilder(bashScript.getAbsolutePath());
+          File rtd = I2PFirefoxProfileBuilder.runtimeDirectory(true);
+          pb.directory(rtd);
+          String crashreporterFolder =
+              new File(rtd.getAbsolutePath(), "crashreporter").toString();
+          String pluginsFolder =
+              new File(rtd.getAbsolutePath(), "crashreporter").toString();
+          pb.environment().put("MOZ_CRASHREPORTER", "0");
+          pb.environment().put("MOZ_CRASHREPORTER_DATA_DIRECTORY",
+                               crashreporterFolder);
+          pb.environment().put("MOZ_CRASHREPORTER_DISABLE", "1");
+          pb.environment().put("MOZ_CRASHREPORTER_NO_REPORT", "1");
+          pb.environment().put("MOZ_DATA_REPORTING", "0");
+          pb.environment().put("MOZ_MAINTENANCE_SERVICE", "0");
+          pb.environment().put("MOZ_PLUGIN_PATH", pluginsFolder);
+          pb.environment().put("MOZ_UPDATER", "0");
+          return pb;
         } catch (IOException e) {
           logger.warning(e.toString());
         }
         return null;
       } else {
-        return new ProcessBuilder(newArgs).directory(
-            I2PFirefoxProfileBuilder.runtimeDirectory(true));
+        ProcessBuilder pb = new ProcessBuilder(newArgs);
+        File rtd = I2PFirefoxProfileBuilder.runtimeDirectory(true);
+        pb.directory(rtd);
+        String crashreporterFolder =
+            new File(rtd.getAbsolutePath(), "crashreporter").toString();
+        String pluginsFolder =
+            new File(rtd.getAbsolutePath(), "crashreporter").toString();
+        pb.environment().put("MOZ_CRASHREPORTER", "0");
+        pb.environment().put("MOZ_CRASHREPORTER_DATA_DIRECTORY",
+                             crashreporterFolder);
+        pb.environment().put("MOZ_CRASHREPORTER_DISABLE", "1");
+        pb.environment().put("MOZ_CRASHREPORTER_NO_REPORT", "1");
+        pb.environment().put("MOZ_DATA_REPORTING", "0");
+        pb.environment().put("MOZ_MAINTENANCE_SERVICE", "0");
+        pb.environment().put("MOZ_PLUGIN_PATH", pluginsFolder);
+        pb.environment().put("MOZ_UPDATER", "0");
+        return pb;
       }
 
     } // else {
     logger.info("No Firefox found.");
-    return new ProcessBuilder(args);
+    ProcessBuilder pb = new ProcessBuilder(args);
+    File rtd = I2PFirefoxProfileBuilder.runtimeDirectory(true);
+    pb.directory(rtd);
+    String crashreporterFolder =
+        new File(rtd.getAbsolutePath(), "crashreporter").toString();
+    String pluginsFolder =
+        new File(rtd.getAbsolutePath(), "crashreporter").toString();
+    pb.environment().put("MOZ_CRASHREPORTER", "0");
+    pb.environment().put("MOZ_CRASHREPORTER_DATA_DIRECTORY",
+                         crashreporterFolder);
+    pb.environment().put("MOZ_CRASHREPORTER_DISABLE", "1");
+    pb.environment().put("MOZ_CRASHREPORTER_NO_REPORT", "1");
+    pb.environment().put("MOZ_DATA_REPORTING", "0");
+    pb.environment().put("MOZ_MAINTENANCE_SERVICE", "0");
+    pb.environment().put("MOZ_PLUGIN_PATH", pluginsFolder);
+    pb.environment().put("MOZ_UPDATER", "0");
+    return pb;
     //}
     // return null;
   }
diff --git a/src/java/net/i2p/i2pfirefox/I2PLibreWolf.java b/src/java/net/i2p/i2pfirefox/I2PLibreWolf.java
index c0f2a09..3d4cfbf 100644
--- a/src/java/net/i2p/i2pfirefox/I2PLibreWolf.java
+++ b/src/java/net/i2p/i2pfirefox/I2PLibreWolf.java
@@ -1,4 +1,8 @@
 package net.i2p.i2pfirefox;
+
+import java.io.*;
+import javax.script.*;
+
 /**
  * I2PLibreWolf.java
  * Copyright (C) 2022 idk <hankhill19580@gmail.com>
@@ -16,5 +20,6 @@ package net.i2p.i2pfirefox;
  * @since 1.0.6
  */
 public class I2PLibreWolf {
-    
+  private static final ScriptEngineManager sem = new ScriptEngineManager();
+  private final ScriptEngine ee = sem.getEngineByName("Nashorn");
 }