diff --git a/src/System Application/App/Extension Management/app.json b/src/System Application/App/Extension Management/app.json
index 6344cdf81ee..0333a369adb 100644
--- a/src/System Application/App/Extension Management/app.json	
+++ b/src/System Application/App/Extension Management/app.json	
@@ -76,6 +76,12 @@
       "name": "VS Code Integration",
       "publisher": "Microsoft",
       "version": "25.3.0.0"
+    },
+    {
+      "id": "c56e3ef4-7ab0-4636-ae87-013a62f12213",
+      "name": "User Permissions",
+      "publisher": "Microsoft",
+      "version": "25.3.0.0"
     }
   ],
   "internalsVisibleTo": [
diff --git a/src/System Application/App/Extension Management/permissions/ExtenMgtAdmin.PermissionSet.al b/src/System Application/App/Extension Management/permissions/ExtenMgtAdmin.PermissionSet.al
index 720da8efa42..620828d9b05 100644
--- a/src/System Application/App/Extension Management/permissions/ExtenMgtAdmin.PermissionSet.al	
+++ b/src/System Application/App/Extension Management/permissions/ExtenMgtAdmin.PermissionSet.al	
@@ -17,7 +17,7 @@ permissionset 2502 "Exten. Mgt. - Admin"
                              "Guided Experience - View";
 
     Permissions = tabledata "Application Dependency" = Rimd,
-                  tabledata "Application Object Metadata" = Rimd, // r needed for check CanManageExtensions
+                  tabledata "Application Object Metadata" = Rimd,
                   tabledata "Application Resource" = Rimd,
                   tabledata "Extension Pending Setup" = rimd,
                   tabledata "Inplace Installed Application" = Rimd,
diff --git a/src/System Application/App/Extension Management/src/ExtensionInstallationImpl.Codeunit.al b/src/System Application/App/Extension Management/src/ExtensionInstallationImpl.Codeunit.al
index 3c7f340cc56..69cfa0dbe74 100644
--- a/src/System Application/App/Extension Management/src/ExtensionInstallationImpl.Codeunit.al	
+++ b/src/System Application/App/Extension Management/src/ExtensionInstallationImpl.Codeunit.al	
@@ -5,8 +5,10 @@
 
 namespace System.Apps;
 
-using System.Utilities;
 using System.Environment.Configuration;
+using System.Security.AccessControl;
+using System.Security.User;
+using System.Utilities;
 
 codeunit 2500 "Extension Installation Impl"
 {
@@ -181,11 +183,55 @@ codeunit 2500 "Extension Installation Impl"
             Error(NotSufficientPermissionErr);
     end;
 
+    procedure CheckPermissions(UserSecurityIdToCheck: Guid)
+    begin
+        if not CanManageExtensions(UserSecurityIdToCheck) then
+            Error(NotSufficientPermissionErr);
+    end;
+
     procedure CanManageExtensions(): Boolean
     var
-        ApplicationObjectMetadata: Record "Application Object Metadata";
+        UserPermissions: Codeunit "User Permissions";
+        Result: Boolean;
+    begin
+        OnCanManageExtensions(Result);
+        if Result then
+            exit(true);
+
+        if UserPermissions.IsSuper(UserSecurityId()) then
+            exit(true);
+
+        exit(CanManageExtensions(UserSecurityId()));
+    end;
+
+    procedure CanManageExtensions(UserSecurityIdToCheck: Guid): Boolean
+    var
+        AccessControl: Record "Access Control";
+        UserPermissions: Codeunit "User Permissions";
+        CurrentModuleInfo: ModuleInfo;
+        ExtensionManagementAdminTok: Label 'Exten. Mgt. - Admin', Locked = true;
+        SuperTok: Label 'SUPER', Locked = true;
+        NullGuid: Guid;
+    begin
+        if UserPermissions.HasUserPermissionSetAssigned(
+            UserSecurityIdToCheck, '', SuperTok, AccessControl.Scope::System, NullGuid)
+        then
+            exit(true);
+
+        NavApp.GetCurrentModuleInfo(CurrentModuleInfo);
+        exit(UserPermissions.HasUserPermissionSetAssigned(
+            UserSecurityIdToCheck, '', ExtensionManagementAdminTok, AccessControl.Scope::System, CurrentModuleInfo.Id()));
+    end;
+
+    /// <summary>
+    /// Allows tests to authorize the current test session without modifying platform user records.
+    /// </summary>
+    /// <remarks>
+    /// This event is for testing only and must not be used in production.
+    /// </remarks>
+    [InternalEvent(false)]
+    local procedure OnCanManageExtensions(var Result: Boolean)
     begin
-        exit(ApplicationObjectMetadata.ReadPermission());
     end;
 
     procedure UninstallExtension(PackageID: Guid; IsUIEnabled: Boolean): Boolean
@@ -418,4 +464,3 @@ codeunit 2500 "Extension Installation Impl"
         exit(Result = PolicyToTestFor);
     end;
 }
-
diff --git a/src/System Application/Test/Extension Management/permissions/ExtMgtNonAdmin.PermissionSet.al b/src/System Application/Test/Extension Management/permissions/ExtMgtNonAdmin.PermissionSet.al
new file mode 100644
index 00000000000..e9856758419
--- /dev/null
+++ b/src/System Application/Test/Extension Management/permissions/ExtMgtNonAdmin.PermissionSet.al	
@@ -0,0 +1,15 @@
+// ------------------------------------------------------------------------------------------------
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+// ------------------------------------------------------------------------------------------------
+
+namespace System.Test.Apps;
+
+using System.Security.AccessControl;
+
+permissionset 133100 "Ext. Mgt. Nonadmin"
+{
+    Assignable = true;
+
+    Permissions = tabledata "Access Control" = R;
+}
\ No newline at end of file
diff --git a/src/System Application/Test/Extension Management/src/ExtensionManagementTest.Codeunit.al b/src/System Application/Test/Extension Management/src/ExtensionManagementTest.Codeunit.al
index 636abc61c4c..2ab86fef953 100644
--- a/src/System Application/Test/Extension Management/src/ExtensionManagementTest.Codeunit.al	
+++ b/src/System Application/Test/Extension Management/src/ExtensionManagementTest.Codeunit.al	
@@ -5,14 +5,16 @@
 
 namespace System.Test.Apps;
 
-using System.Environment.Configuration;
 using System.Apps;
+using System.Environment.Configuration;
 using System.Media;
-using System.TestLibraries.Utilities;
+using System.Security.AccessControl;
 using System.TestLibraries.Security.AccessControl;
+using System.TestLibraries.Utilities;
 
 codeunit 133100 "Extension Management Test"
 {
+    EventSubscriberInstance = Manual;
 
     // For the purpose of this test, two sample extensions are pre-published.
     // The condition for the tests to pass is that one of the extensions is holding a dependency on the other one, and they are both 1st Party Extensions, version 1.0.
@@ -28,8 +30,11 @@ codeunit 133100 "Extension Management Test"
 
     var
         ExtensionManagement: Codeunit "Extension Management";
+        ExtensionManagementTest: Codeunit "Extension Management Test";
+        ExtensionInstallationImplTest: Codeunit "Extension Installation Impl";
         Assert: Codeunit "Library Assert";
         PermissionsMock: Codeunit "Permissions Mock";
+        ExtensionManagementTestBound: Boolean;
         MainAppId: Guid;
         DependingAppId: Guid;
         NotInstalledSuccErr: Label 'Extension was not installed succesfully';
@@ -40,6 +45,7 @@ codeunit 133100 "Extension Management Test"
         ExtensionNotInstalledErr: Label 'Extension should be installed.';
         PackageIdExistsErr: Label 'The returned extension pakage does not exist';
         NullPackageIdErr: Label 'There should not be an extension corresponding to the returned package ID';
+        NotSufficientPermissionErr: Label 'You do not have sufficient permissions to manage extensions. Please contact your administrator.';
         PackageIdExtensionVersionErr: Label 'The package Id does not poin to the correct extension version';
 
     local procedure SetNavAppIds()
@@ -48,16 +54,122 @@ codeunit 133100 "Extension Management Test"
         DependingAppId := 'c4123d81-a537-4062-bdd4-7b9882bcc319';
     end;
 
+    local procedure CreateUserWithPermissionSet(RoleId: Code[20]; Company: Text): Guid
+    var
+        AccessControl: Record "Access Control";
+        AggregatePermissionSet: Record "Aggregate Permission Set";
+        UserSecurityId: Guid;
+    begin
+        UserSecurityId := CreateGuid();
+
+        AggregatePermissionSet.SetRange("Role ID", RoleId);
+        AggregatePermissionSet.FindFirst();
+
+        AccessControl.Init();
+        AccessControl."User Security ID" := UserSecurityId;
+        AccessControl."Role ID" := AggregatePermissionSet."Role ID";
+        AccessControl."Company Name" := CopyStr(Company, 1, MaxStrLen(AccessControl."Company Name"));
+        AccessControl.Scope := AggregatePermissionSet.Scope;
+        AccessControl."App ID" := AggregatePermissionSet."App ID";
+        AccessControl.Insert();
+
+        exit(UserSecurityId);
+    end;
+
+    local procedure CreateSuperUser(): Guid
+    var
+        AccessControl: Record "Access Control";
+        UserSecurityId: Guid;
+    begin
+        UserSecurityId := CreateGuid();
+
+        AccessControl.Init();
+        AccessControl."User Security ID" := UserSecurityId;
+        AccessControl."Role ID" := 'SUPER';
+        AccessControl.Scope := AccessControl.Scope::System;
+        AccessControl.Insert();
+
+        exit(UserSecurityId);
+    end;
+
     local procedure InitializeExtensions()
     var
         NAVAppInstalledApp: Record "NAV App Installed App";
     begin
+        if not ExtensionManagementTestBound then begin
+            BindSubscription(ExtensionManagementTest);
+            ExtensionManagementTestBound := true;
+        end;
+
         if NAVAppInstalledApp.Get(MainAppId) then
             ExtensionManagement.UninstallExtension(NAVAppInstalledApp."Package ID", false);
         if NAVAppInstalledApp.Get(DependingAppId) then
             ExtensionManagement.UninstallExtension(NAVAppInstalledApp."Package ID", false);
     end;
 
+    [Test]
+    [TransactionModel(TransactionModel::AutoRollback)]
+    procedure NonAdminCannotManageExtensions()
+    var
+        UserSecurityId: Guid;
+    begin
+        UserSecurityId := CreateUserWithPermissionSet('Ext. Mgt. Nonadmin', '');
+
+        Assert.IsFalse(ExtensionInstallationImplTest.CanManageExtensions(UserSecurityId), 'A non-admin permission set must not grant extension management permission.');
+    end;
+
+    [Test]
+    [TransactionModel(TransactionModel::AutoRollback)]
+    procedure NonAdminCannotPassExtensionPermissionCheck()
+    var
+        UserSecurityId: Guid;
+    begin
+        UserSecurityId := CreateUserWithPermissionSet('Ext. Mgt. Nonadmin', '');
+
+        asserterror ExtensionInstallationImplTest.CheckPermissions(UserSecurityId);
+
+        Assert.ExpectedError(NotSufficientPermissionErr);
+    end;
+
+    [Test]
+    [TransactionModel(TransactionModel::AutoRollback)]
+    procedure ExtensionManagementAdminCanManageExtensions()
+    var
+        UserSecurityId: Guid;
+    begin
+        UserSecurityId := CreateUserWithPermissionSet('Exten. Mgt. - Admin', '');
+
+        Assert.IsTrue(ExtensionInstallationImplTest.CanManageExtensions(UserSecurityId), 'Exten. Mgt. - Admin must grant extension management permission.');
+    end;
+
+    [Test]
+    [TransactionModel(TransactionModel::AutoRollback)]
+    procedure SuperCanManageExtensions()
+    var
+        UserSecurityId: Guid;
+    begin
+        UserSecurityId := CreateSuperUser();
+
+        Assert.IsTrue(ExtensionInstallationImplTest.CanManageExtensions(UserSecurityId), 'SUPER must grant extension management permission.');
+    end;
+
+
+    [Test]
+    [TransactionModel(TransactionModel::AutoRollback)]
+    procedure CompanyScopedExtensionManagementAdminCannotManageExtensions()
+    var
+        UserSecurityId: Guid;
+    begin
+        UserSecurityId := CreateUserWithPermissionSet('Exten. Mgt. - Admin', CompanyName());
+
+        Assert.IsFalse(ExtensionInstallationImplTest.CanManageExtensions(UserSecurityId), 'Company-scoped Exten. Mgt. - Admin must not grant tenant-wide extension management permission.');
+    end;
+    [EventSubscriber(ObjectType::Codeunit, Codeunit::"Extension Installation Impl", OnCanManageExtensions, '', false, false)]
+    local procedure AuthorizeTestSession(var Result: Boolean)
+    begin
+        Result := true;
+    end;
+
     [Test]
     [Scope('OnPrem')]
     procedure InstallUninstallExtension()
@@ -571,4 +683,3 @@ codeunit 133100 "Extension Management Test"
         Reply := true;
     end;
 }
-