diff --git a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/JavaGUILauncherActivity.java b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/JavaGUILauncherActivity.java
index dea2d1b59..4eabe56d2 100644
--- a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/JavaGUILauncherActivity.java
+++ b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/JavaGUILauncherActivity.java
@@ -271,14 +271,16 @@ public class JavaGUILauncherActivity extends BaseActivity implements View.OnTouc
                 javaArgList.add(modFile.getAbsolutePath());
             }
 
-            Logger.getInstance().appendToLog("Info: Java arguments: " + Arrays.toString(javaArgList.toArray(new String[0])));
             
-            // Run java on sandbox, non-overrideable.
-            Collections.reverse(javaArgList);
-            javaArgList.add("-Xbootclasspath/a:" + Tools.DIR_DATA + "/security/pro-grade.jar");
-            javaArgList.add("-Djava.security.manager=net.sourceforge.prograde.sm.ProGradeJSM");
-            javaArgList.add("-Djava.security.policy=" + Tools.DIR_DATA + "/security/java_sandbox.policy");
-            Collections.reverse(javaArgList);
+            if (LauncherPreferences.PREF_JAVA_SANDBOX) {
+                Collections.reverse(javaArgList);
+                javaArgList.add("-Xbootclasspath/a:" + Tools.DIR_DATA + "/security/pro-grade.jar");
+                javaArgList.add("-Djava.security.manager=net.sourceforge.prograde.sm.ProGradeJSM");
+                javaArgList.add("-Djava.security.policy=" + Tools.DIR_DATA + "/security/java_sandbox.policy");
+                Collections.reverse(javaArgList);
+            }
+
+            Logger.getInstance().appendToLog("Info: Java arguments: " + Arrays.toString(javaArgList.toArray(new String[0])));
 
             return JREUtils.launchJavaVM(this, javaArgList);
         } catch (Throwable th) {
diff --git a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/prefs/LauncherPreferences.java b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/prefs/LauncherPreferences.java
index be1c4dae5..3a53aaef2 100644
--- a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/prefs/LauncherPreferences.java
+++ b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/prefs/LauncherPreferences.java
@@ -49,6 +49,7 @@ public class LauncherPreferences {
     public static boolean PREF_VIRTUAL_MOUSE_START = false;
     public static boolean PREF_ARC_CAPES = false;
     public static boolean PREF_USE_ALTERNATE_SURFACE = true;
+    public static boolean PREF_JAVA_SANDBOX = true;
     public static int PREF_SCALE_FACTOR = 100;
 
 
@@ -82,6 +83,7 @@ public class LauncherPreferences {
         PREF_VIRTUAL_MOUSE_START = DEFAULT_PREF.getBoolean("mouse_start", false);
         PREF_ARC_CAPES = DEFAULT_PREF.getBoolean("arc_capes",false);
         PREF_USE_ALTERNATE_SURFACE = DEFAULT_PREF.getBoolean("alternate_surface", false);
+        PREF_JAVA_SANDBOX = DEFAULT_PREF.getBoolean("java_sandbox", true);
         PREF_SCALE_FACTOR = DEFAULT_PREF.getInt("resolutionRatio", 100);
 
 /*
diff --git a/app_pojavlauncher/src/main/res/values/strings.xml b/app_pojavlauncher/src/main/res/values/strings.xml
index 7ecf7be59..2c60b00f4 100644
--- a/app_pojavlauncher/src/main/res/values/strings.xml
+++ b/app_pojavlauncher/src/main/res/values/strings.xml
@@ -110,6 +110,8 @@
     <string name="mcl_setting_veroption_snapshot">Snapshot</string>
     <string name="mcl_setting_veroption_oldalpha">Old-alpha</string>
     <string name="mcl_setting_veroption_oldbeta">Old-beta</string>
+    <string name="mcl_setting_java_sandbox">Sandbox .jar installer</string>
+    <string name="mcl_setting_java_sandbox_subtitle">Control the availability sandbox security manager when launching .jar installer.</string>
     <string name="mcl_version_clone">Clone</string>
 
     <!-- Global strings -->
diff --git a/app_pojavlauncher/src/main/res/xml/pref_misc.xml b/app_pojavlauncher/src/main/res/xml/pref_misc.xml
index 6ecce2806..be6c9f251 100644
--- a/app_pojavlauncher/src/main/res/xml/pref_misc.xml
+++ b/app_pojavlauncher/src/main/res/xml/pref_misc.xml
@@ -5,6 +5,11 @@
     <net.kdt.pojavlaunch.prefs.BackButtonPreference/>
 
     <PreferenceCategory android:title="Miscellaneous settings">
+        <SwitchPreference
+            android:defaultValue="true"
+            android:key="java_sandbox"
+            android:summary="@string/mcl_setting_java_sandbox_subtitle"
+            android:title="@string/mcl_setting_java_sandbox" />
         <SwitchPreference
             android:defaultValue="true"
             android:icon="@drawable/ic_setting_hash_verification"