diff --git a/packages/core/src/extensions/__tests__/configurable-directories.test.ts b/packages/core/src/extensions/__tests__/configurable-directories.test.ts
index f8d6f1d678..7e79fb7400 100644
--- a/packages/core/src/extensions/__tests__/configurable-directories.test.ts
+++ b/packages/core/src/extensions/__tests__/configurable-directories.test.ts
@@ -38,17 +38,9 @@ describe("configurable directories for extension files", () => {
 
       testExtensionOptions = {
         id: "some-extension",
-        name: "some-extension-name",
-
-        mainOptions: {
-          manifest: {
-            name: "irrelevant",
-            storeName: "some-specific-store-name",
-            version: "0",
-            engines: {
-              lens: "0",
-            },
-          },
+        manifest: {
+          name: "some-extension-name",
+          storeName: "some-specific-store-name",
         },
       };
 
@@ -73,17 +65,8 @@ describe("configurable directories for extension files", () => {
 
       testExtensionOptions = {
         id: "some-extension",
-        name: "some-extension-name",
-
-        mainOptions: {
-          manifest: {
-            name: "some-package-name",
-            storeName: undefined,
-            version: "0",
-            engines: {
-              lens: "0",
-            },
-          },
+        manifest: {
+          name: "some-extension-name",
         },
       };
 
diff --git a/packages/core/src/extensions/lens-extension.ts b/packages/core/src/extensions/lens-extension.ts
index 1fd867a8c1..9dfe9a1b33 100644
--- a/packages/core/src/extensions/lens-extension.ts
+++ b/packages/core/src/extensions/lens-extension.ts
@@ -21,6 +21,10 @@ export interface LensExtensionDependencies {
 
 export const Disposers = Symbol("disposers");
 
+export interface LensExtensionParts {
+  protocolHandlers: ProtocolHandlerRegistration[];
+}
+
 export class LensExtension {
   get id() {
     return this.extension.id;
diff --git a/packages/core/src/extensions/lens-main-extension.ts b/packages/core/src/extensions/lens-main-extension.ts
index 7677531d86..cad754b7c5 100644
--- a/packages/core/src/extensions/lens-main-extension.ts
+++ b/packages/core/src/extensions/lens-main-extension.ts
@@ -3,7 +3,7 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 
-import type { LensExtensionDependencies } from "./lens-extension";
+import type { LensExtensionDependencies, LensExtensionParts } from "./lens-extension";
 import { LensExtension } from "./lens-extension";
 import type { CatalogEntity } from "../common/catalog";
 import type { IComputedValue, IObservableArray } from "mobx";
@@ -25,6 +25,11 @@ interface LensMainExtensionDependencies extends LensExtensionDependencies {
   readonly navigate: NavigateForExtension;
 }
 
+export interface LensMainExtensionParts extends LensExtensionParts {
+  appMenus: MenuRegistration[] | IComputedValue<MenuRegistration[]>;
+  trayMenus: TrayMenuRegistration[] | IComputedValue<TrayMenuRegistration[]>;
+}
+
 export class LensMainExtension extends LensExtension {
   appMenus: MenuRegistration[] | IComputedValue<MenuRegistration[]> = [];
   trayMenus: TrayMenuRegistration[] | IComputedValue<TrayMenuRegistration[]> = [];
diff --git a/packages/core/src/extensions/lens-renderer-extension.ts b/packages/core/src/extensions/lens-renderer-extension.ts
index f1a6bddf0c..629aae5a46 100644
--- a/packages/core/src/extensions/lens-renderer-extension.ts
+++ b/packages/core/src/extensions/lens-renderer-extension.ts
@@ -3,7 +3,7 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 
-import type { LensExtensionDependencies } from "./lens-extension";
+import type { LensExtensionDependencies, LensExtensionParts } from "./lens-extension";
 import { Disposers, LensExtension } from "./lens-extension";
 import type { CatalogEntity, CategoryFilter, CatalogCategoryRegistry } from "../common/catalog";
 import type { Disposer } from "../common/utils";
@@ -53,6 +53,30 @@ interface LensRendererExtensionDependencies extends LensExtensionDependencies {
   readonly categoryRegistry: CatalogCategoryRegistry;
 }
 
+export interface LensRendererExtensionParts extends LensExtensionParts {
+  globalPages: PageRegistration[];
+  clusterPages: PageRegistration[];
+  clusterPageMenus: ClusterPageMenuRegistration[];
+  clusterFrameComponents: ClusterFrameChildComponent[];
+  kubeObjectStatusTexts: KubeObjectStatusRegistration[];
+  appPreferences: AppPreferenceRegistration[];
+  appPreferenceTabs: AppPreferenceTabRegistration[];
+  entitySettings: EntitySettingRegistration[];
+  statusBarItems: StatusBarRegistration[];
+  kubeObjectDetailItems: KubeObjectDetailRegistration[];
+  kubeObjectMenuItems: KubeObjectMenuRegistration[];
+  kubeWorkloadsOverviewItems: WorkloadsOverviewDetailRegistration[];
+  commands: CommandRegistration[];
+  welcomeMenus: WelcomeMenuRegistration[];
+  welcomeBanners: WelcomeBannerRegistration[];
+  catalogEntityDetailItems: CatalogEntityDetailRegistration<CatalogEntity>[];
+  topBarItems: TopBarRegistration[];
+  additionalCategoryColumns: AdditionalCategoryColumnRegistration[];
+  customCategoryViews: CustomCategoryViewRegistration[];
+  kubeObjectHandlers: KubeObjectHandlerRegistration[];
+  isEnabledForCluster(cluster: KubernetesCluster): Promise<boolean>;
+}
+
 export class LensRendererExtension extends LensExtension {
   globalPages: PageRegistration[] = [];
   clusterPages: PageRegistration[] = [];
diff --git a/packages/core/src/features/application-menu/application-menu-in-legacy-extension-api.test.ts b/packages/core/src/features/application-menu/application-menu-in-legacy-extension-api.test.ts
index 888f89f251..b8dcf29242 100644
--- a/packages/core/src/features/application-menu/application-menu-in-legacy-extension-api.test.ts
+++ b/packages/core/src/features/application-menu/application-menu-in-legacy-extension-api.test.ts
@@ -45,8 +45,9 @@ describe("application-menu-in-legacy-extension-api", () => {
 
       testExtensionOptions = {
         id: "some-test-extension",
-        name: "some-extension-name",
-
+        manifest: {
+          name: "some-extension-name",
+        },
         mainOptions: {
           appMenus: [
             {
@@ -151,8 +152,9 @@ describe("application-menu-in-legacy-extension-api", () => {
     beforeEach(() => {
       const testExtensionOptions: FakeExtensionOptions = {
         id: "some-test-extension",
-        name: "some-extension-name",
-
+        manifest: {
+          name: "some-extension-name",
+        },
         mainOptions: {
           appMenus: [
             {
diff --git a/packages/core/src/features/catalog/custom-columns.test.tsx b/packages/core/src/features/catalog/custom-columns.test.tsx
index 19c2bf83dc..ddfd17b047 100644
--- a/packages/core/src/features/catalog/custom-columns.test.tsx
+++ b/packages/core/src/features/catalog/custom-columns.test.tsx
@@ -103,7 +103,9 @@ describe("custom category columns for catalog", () => {
       beforeEach(() => {
         builder.extensions.enable({
           id: "some-id",
-          name: "some-name",
+          manifest: {
+            name: "some-name",
+          },
           rendererOptions: {
             additionalCategoryColumns: [
               {
diff --git a/packages/core/src/features/cluster/extension-api/disable-cluster-pages-when-cluster-is-not-relevant.test.tsx b/packages/core/src/features/cluster/extension-api/disable-cluster-pages-when-cluster-is-not-relevant.test.tsx
index fcd5044639..9c5375d741 100644
--- a/packages/core/src/features/cluster/extension-api/disable-cluster-pages-when-cluster-is-not-relevant.test.tsx
+++ b/packages/core/src/features/cluster/extension-api/disable-cluster-pages-when-cluster-is-not-relevant.test.tsx
@@ -24,10 +24,13 @@ describe("disable-cluster-pages-when-cluster-is-not-relevant", () => {
 
     isEnabledForClusterMock = asyncFn();
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         isEnabledForCluster: isEnabledForClusterMock,
 
@@ -37,11 +40,7 @@ describe("disable-cluster-pages-when-cluster-is-not-relevant", () => {
           },
         }],
       },
-    };
-
-    rendered = await builder.render();
-
-    builder.extensions.enable(testExtension);
+    });
 
     rendererTestExtension =
       builder.extensions.get("test-extension-id").applicationWindows.only;
diff --git a/packages/core/src/features/cluster/extension-api/disable-sidebar-items-when-cluster-is-not-relevant.test.tsx b/packages/core/src/features/cluster/extension-api/disable-sidebar-items-when-cluster-is-not-relevant.test.tsx
index efc16c8ef2..bd90821fd6 100644
--- a/packages/core/src/features/cluster/extension-api/disable-sidebar-items-when-cluster-is-not-relevant.test.tsx
+++ b/packages/core/src/features/cluster/extension-api/disable-sidebar-items-when-cluster-is-not-relevant.test.tsx
@@ -22,10 +22,13 @@ describe("disable sidebar items when cluster is not relevant", () => {
 
     isEnabledForClusterMock = asyncFn();
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         isEnabledForCluster: isEnabledForClusterMock,
 
@@ -46,11 +49,7 @@ describe("disable sidebar items when cluster is not relevant", () => {
           },
         ],
       },
-    };
-
-    rendered = await builder.render();
-
-    builder.extensions.enable(testExtension);
+    });
   });
 
   describe("given not yet known if extension should be enabled for the cluster", () => {
diff --git a/packages/core/src/features/cluster/extension-api/reactively-disable-cluster-pages.test.tsx b/packages/core/src/features/cluster/extension-api/reactively-disable-cluster-pages.test.tsx
index 57dc83d810..08d9bbcd19 100644
--- a/packages/core/src/features/cluster/extension-api/reactively-disable-cluster-pages.test.tsx
+++ b/packages/core/src/features/cluster/extension-api/reactively-disable-cluster-pages.test.tsx
@@ -23,10 +23,13 @@ describe("reactively disable cluster pages", () => {
 
     someObservable = observable.box(false);
 
-    const testExtensionOptions = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         clusterPages: [{
           components: {
@@ -36,11 +39,7 @@ describe("reactively disable cluster pages", () => {
           enabled: computed(() => someObservable.get()),
         }],
       },
-    };
-
-    rendered = await builder.render();
-
-    builder.extensions.enable(testExtensionOptions);
+    });
 
     testExtensionInstance =
       builder.extensions.get("test-extension-id").applicationWindows.only;
diff --git a/packages/core/src/features/cluster/kube-object-details/extension-api/disable-kube-object-detail-items-when-cluster-is-not-relevant.test.tsx b/packages/core/src/features/cluster/kube-object-details/extension-api/disable-kube-object-detail-items-when-cluster-is-not-relevant.test.tsx
index 3804ea7046..da4dad7f15 100644
--- a/packages/core/src/features/cluster/kube-object-details/extension-api/disable-kube-object-detail-items-when-cluster-is-not-relevant.test.tsx
+++ b/packages/core/src/features/cluster/kube-object-details/extension-api/disable-kube-object-detail-items-when-cluster-is-not-relevant.test.tsx
@@ -42,10 +42,18 @@ describe("disable kube object detail items when cluster is not relevant", () =>
 
     isEnabledForClusterMock = asyncFn();
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    const windowDi = builder.applicationWindow.only.di;
+    const showDetails = windowDi.inject(showDetailsInjectable);
+
+    showDetails("/apis/some-api-version/namespaces/some-namespace/some-kind/some-name");
+
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         isEnabledForCluster: isEnabledForClusterMock,
 
@@ -63,16 +71,7 @@ describe("disable kube object detail items when cluster is not relevant", () =>
           },
         ],
       },
-    };
-
-    rendered = await builder.render();
-
-    const windowDi = builder.applicationWindow.only.di;
-    const showDetails = windowDi.inject(showDetailsInjectable);
-
-    showDetails("/apis/some-api-version/namespaces/some-namespace/some-kind/some-name");
-
-    builder.extensions.enable(testExtension);
+    });
   });
 
   describe("given not yet known if extension should be enabled for the cluster", () => {
diff --git a/packages/core/src/features/cluster/kube-object-details/extension-api/reactively-hide-kube-object-detail-item.test.tsx b/packages/core/src/features/cluster/kube-object-details/extension-api/reactively-hide-kube-object-detail-item.test.tsx
index 847ad3ed11..50775c25dd 100644
--- a/packages/core/src/features/cluster/kube-object-details/extension-api/reactively-hide-kube-object-detail-item.test.tsx
+++ b/packages/core/src/features/cluster/kube-object-details/extension-api/reactively-hide-kube-object-detail-item.test.tsx
@@ -41,10 +41,18 @@ describe("reactively hide kube object detail item", () => {
 
     someObservable = observable.box(false);
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    const windowDi = builder.applicationWindow.only.di;
+    const showDetails = windowDi.inject(showDetailsInjectable);
+
+    showDetails("/apis/some-api-version/namespaces/some-namespace/some-kind/some-name");
+
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         kubeObjectDetailItems: [
           {
@@ -63,16 +71,7 @@ describe("reactively hide kube object detail item", () => {
           },
         ],
       },
-    };
-
-    rendered = await builder.render();
-
-    const windowDi = builder.applicationWindow.only.di;
-    const showDetails = windowDi.inject(showDetailsInjectable);
-
-    showDetails("/apis/some-api-version/namespaces/some-namespace/some-kind/some-name");
-
-    builder.extensions.enable(testExtension);
+    });
   });
 
   it("renders", () => {
diff --git a/packages/core/src/features/cluster/kube-object-menu/extension-api/disable-kube-object-menu-items-when-cluster-is-not-relevant.test.tsx b/packages/core/src/features/cluster/kube-object-menu/extension-api/disable-kube-object-menu-items-when-cluster-is-not-relevant.test.tsx
index f7dff90f24..850c9d0291 100644
--- a/packages/core/src/features/cluster/kube-object-menu/extension-api/disable-kube-object-menu-items-when-cluster-is-not-relevant.test.tsx
+++ b/packages/core/src/features/cluster/kube-object-menu/extension-api/disable-kube-object-menu-items-when-cluster-is-not-relevant.test.tsx
@@ -37,10 +37,20 @@ describe("disable kube object menu items when cluster is not relevant", () => {
 
     isEnabledForClusterMock = asyncFn();
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    const windowDi = builder.applicationWindow.only.di;
+
+    const navigateToRoute = windowDi.inject(navigateToRouteInjectionToken);
+    const testRoute = windowDi.inject(testRouteInjectable);
+
+    navigateToRoute(testRoute);
+
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         isEnabledForCluster: isEnabledForClusterMock,
 
@@ -56,18 +66,7 @@ describe("disable kube object menu items when cluster is not relevant", () => {
           },
         ],
       },
-    };
-
-    rendered = await builder.render();
-
-    const windowDi = builder.applicationWindow.only.di;
-
-    const navigateToRoute = windowDi.inject(navigateToRouteInjectionToken);
-    const testRoute = windowDi.inject(testRouteInjectable);
-
-    navigateToRoute(testRoute);
-
-    builder.extensions.enable(testExtension);
+    });
   });
 
   describe("given not yet known if extension should be enabled for the cluster", () => {
diff --git a/packages/core/src/features/cluster/kube-object-menu/extension-api/reactively-hide-kube-object-menu-item.test.tsx b/packages/core/src/features/cluster/kube-object-menu/extension-api/reactively-hide-kube-object-menu-item.test.tsx
index be8cc96ed9..a4be9f64d1 100644
--- a/packages/core/src/features/cluster/kube-object-menu/extension-api/reactively-hide-kube-object-menu-item.test.tsx
+++ b/packages/core/src/features/cluster/kube-object-menu/extension-api/reactively-hide-kube-object-menu-item.test.tsx
@@ -33,10 +33,20 @@ describe("reactively hide kube object menu item", () => {
 
     someObservable = observable.box(false);
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    const windowDi = builder.applicationWindow.only.di;
+
+    const navigateToRoute = windowDi.inject(navigateToRouteInjectionToken);
+    const testRoute = windowDi.inject(testRouteInjectable);
+
+    navigateToRoute(testRoute);
+
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         kubeObjectMenuItems: [
           {
@@ -52,18 +62,7 @@ describe("reactively hide kube object menu item", () => {
           },
         ],
       },
-    };
-
-    rendered = await builder.render();
-
-    const windowDi = builder.applicationWindow.only.di;
-
-    const navigateToRoute = windowDi.inject(navigateToRouteInjectionToken);
-    const testRoute = windowDi.inject(testRouteInjectable);
-
-    navigateToRoute(testRoute);
-
-    builder.extensions.enable(testExtension);
+    });
   });
 
   it("does not show the kube object menu item", () => {
diff --git a/packages/core/src/features/cluster/kube-object-status-icon/extension-api/disable-kube-object-statuses-when-cluster-is-not-relevant.test.tsx b/packages/core/src/features/cluster/kube-object-status-icon/extension-api/disable-kube-object-statuses-when-cluster-is-not-relevant.test.tsx
index 49fae34daf..8820c1a504 100644
--- a/packages/core/src/features/cluster/kube-object-status-icon/extension-api/disable-kube-object-statuses-when-cluster-is-not-relevant.test.tsx
+++ b/packages/core/src/features/cluster/kube-object-status-icon/extension-api/disable-kube-object-statuses-when-cluster-is-not-relevant.test.tsx
@@ -38,10 +38,20 @@ describe("disable kube object statuses when cluster is not relevant", () => {
 
     isEnabledForClusterMock = asyncFn();
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    const windowDi = builder.applicationWindow.only.di;
+
+    const navigateToRoute = windowDi.inject(navigateToRouteInjectionToken);
+    const testRoute = windowDi.inject(testRouteInjectable);
+
+    navigateToRoute(testRoute);
+
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         isEnabledForCluster: isEnabledForClusterMock,
 
@@ -57,18 +67,7 @@ describe("disable kube object statuses when cluster is not relevant", () => {
           },
         ],
       },
-    };
-
-    rendered = await builder.render();
-
-    const windowDi = builder.applicationWindow.only.di;
-
-    const navigateToRoute = windowDi.inject(navigateToRouteInjectionToken);
-    const testRoute = windowDi.inject(testRouteInjectable);
-
-    navigateToRoute(testRoute);
-
-    builder.extensions.enable(testExtension);
+    });
   });
 
   describe("given not yet known if extension should be enabled for the cluster", () => {
diff --git a/packages/core/src/features/cluster/kube-object-status-icon/extension-api/reactively-hide-kube-object-status.test.tsx b/packages/core/src/features/cluster/kube-object-status-icon/extension-api/reactively-hide-kube-object-status.test.tsx
index aebc03a0f4..06e6e8c68f 100644
--- a/packages/core/src/features/cluster/kube-object-status-icon/extension-api/reactively-hide-kube-object-status.test.tsx
+++ b/packages/core/src/features/cluster/kube-object-status-icon/extension-api/reactively-hide-kube-object-status.test.tsx
@@ -34,10 +34,20 @@ describe("reactively hide kube object status", () => {
 
     someObservable = observable.box(false);
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    const windowDi = builder.applicationWindow.only.di;
+
+    const navigateToRoute = windowDi.inject(navigateToRouteInjectionToken);
+    const testRoute = windowDi.inject(testRouteInjectable);
+
+    navigateToRoute(testRoute);
+
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         kubeObjectStatusTexts: [
           {
@@ -53,18 +63,7 @@ describe("reactively hide kube object status", () => {
           },
         ],
       },
-    };
-
-    rendered = await builder.render();
-
-    const windowDi = builder.applicationWindow.only.di;
-
-    const navigateToRoute = windowDi.inject(navigateToRouteInjectionToken);
-    const testRoute = windowDi.inject(testRouteInjectable);
-
-    navigateToRoute(testRoute);
-
-    builder.extensions.enable(testExtension);
+    });
   });
 
   it("does not show the kube object status", () => {
diff --git a/packages/core/src/features/cluster/legacy-extension-adding-cluster-frame-components.test.tsx b/packages/core/src/features/cluster/legacy-extension-adding-cluster-frame-components.test.tsx
index f837550f7a..05689bdefb 100644
--- a/packages/core/src/features/cluster/legacy-extension-adding-cluster-frame-components.test.tsx
+++ b/packages/core/src/features/cluster/legacy-extension-adding-cluster-frame-components.test.tsx
@@ -25,10 +25,12 @@ describe("legacy extension adding cluster frame components", () => {
     beforeEach(async () => {
       someObservable = observable.box(false);
 
-      const testExtension = {
+      rendered = await builder.render();
+      builder.extensions.enable({
         id: "some-extension-id",
-        name: "some-extension-name",
-
+        manifest: {
+          name: "some-extension-name",
+        },
         rendererOptions: {
           clusterFrameComponents: [
             {
@@ -43,10 +45,7 @@ describe("legacy extension adding cluster frame components", () => {
             },
           ],
         },
-      };
-
-      rendered = await builder.render();
-      builder.extensions.enable(testExtension);
+      });
     });
 
     it("renders", () => {
diff --git a/packages/core/src/features/cluster/sidebar-and-tab-navigation-for-extensions.test.tsx b/packages/core/src/features/cluster/sidebar-and-tab-navigation-for-extensions.test.tsx
index 50b022166a..c75820bce7 100644
--- a/packages/core/src/features/cluster/sidebar-and-tab-navigation-for-extensions.test.tsx
+++ b/packages/core/src/features/cluster/sidebar-and-tab-navigation-for-extensions.test.tsx
@@ -50,10 +50,11 @@ describe("cluster - sidebar and tab navigation for extensions", () => {
     beforeEach(() => {
       someObservable = observable.box(false);
 
-      const testExtension = {
+      applicationBuilder.extensions.enable({
         id: "some-extension-id",
-        name: "some-extension-name",
-
+        manifest: {
+          name: "some-extension-name",
+        },
         rendererOptions: {
           clusterPages: [
             {
@@ -124,9 +125,7 @@ describe("cluster - sidebar and tab navigation for extensions", () => {
             },
           ],
         },
-      };
-
-      applicationBuilder.extensions.enable(testExtension);
+      });
     });
 
     describe("given no state for expanded sidebar items exists, and navigated to child sidebar item, when rendered", () => {
@@ -458,10 +457,11 @@ describe("cluster - sidebar and tab navigation for extensions", () => {
     beforeEach(() => {
       someObservable = observable.box(false);
 
-      const testExtension = {
+      applicationBuilder.extensions.enable({
         id: "some-extension-id",
-        name: "some-extension-name",
-
+        manifest: {
+          name: "some-extension-name",
+        },
         rendererOptions: {
           clusterPages: [
             {
@@ -526,9 +526,7 @@ describe("cluster - sidebar and tab navigation for extensions", () => {
             },
           ] as ClusterPageMenuRegistration[],
         },
-      };
-
-      applicationBuilder.extensions.enable(testExtension);
+      });
     });
 
     describe("given no state for expanded sidebar items exists, and navigated to child sidebar item, when rendered", () => {
diff --git a/packages/core/src/features/cluster/workloads/overview/extension-api/disable-workloads-overview-details-when-cluster-is-not-relevant.test.tsx b/packages/core/src/features/cluster/workloads/overview/extension-api/disable-workloads-overview-details-when-cluster-is-not-relevant.test.tsx
index e40b7361fb..1f93f23739 100644
--- a/packages/core/src/features/cluster/workloads/overview/extension-api/disable-workloads-overview-details-when-cluster-is-not-relevant.test.tsx
+++ b/packages/core/src/features/cluster/workloads/overview/extension-api/disable-workloads-overview-details-when-cluster-is-not-relevant.test.tsx
@@ -25,10 +25,21 @@ describe("disable workloads overview details when cluster is not relevant", () =
 
     isEnabledForClusterMock = asyncFn();
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    const windowDi = builder.applicationWindow.only.di;
+
+    const navigateToWorkloadsOverview = windowDi.inject(
+      navigateToWorkloadsOverviewInjectable,
+    );
+
+    navigateToWorkloadsOverview();
+
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         isEnabledForCluster: isEnabledForClusterMock,
 
@@ -42,19 +53,7 @@ describe("disable workloads overview details when cluster is not relevant", () =
           },
         ],
       },
-    };
-
-    rendered = await builder.render();
-
-    const windowDi = builder.applicationWindow.only.di;
-
-    const navigateToWorkloadsOverview = windowDi.inject(
-      navigateToWorkloadsOverviewInjectable,
-    );
-
-    navigateToWorkloadsOverview();
-
-    builder.extensions.enable(testExtension);
+    });
   });
 
   describe("given not yet known if extension should be enabled for the cluster", () => {
diff --git a/packages/core/src/features/cluster/workloads/overview/extension-api/order-of-workload-overview-details.test.tsx b/packages/core/src/features/cluster/workloads/overview/extension-api/order-of-workload-overview-details.test.tsx
index 620b2cabb1..5d752fcf7d 100644
--- a/packages/core/src/features/cluster/workloads/overview/extension-api/order-of-workload-overview-details.test.tsx
+++ b/packages/core/src/features/cluster/workloads/overview/extension-api/order-of-workload-overview-details.test.tsx
@@ -33,10 +33,11 @@ describe("order of workload overview details", () => {
 
     rendered = await builder.render();
 
-    const testExtension = {
+    builder.extensions.enable({
       id: "some-extension-id",
-      name: "some-extension",
-
+      manifest: {
+        name: "some-extension",
+      },
       rendererOptions: {
         kubeWorkloadsOverviewItems: [
           {
@@ -73,9 +74,7 @@ describe("order of workload overview details", () => {
           },
         ],
       },
-    };
-
-    builder.extensions.enable(testExtension);
+    });
   });
 
   it("shows items in correct order", () => {
diff --git a/packages/core/src/features/cluster/workloads/overview/extension-api/reactively-hide-workloads-overview-details-item.test.tsx b/packages/core/src/features/cluster/workloads/overview/extension-api/reactively-hide-workloads-overview-details-item.test.tsx
index fbc8ceebca..6ca5260a9b 100644
--- a/packages/core/src/features/cluster/workloads/overview/extension-api/reactively-hide-workloads-overview-details-item.test.tsx
+++ b/packages/core/src/features/cluster/workloads/overview/extension-api/reactively-hide-workloads-overview-details-item.test.tsx
@@ -22,10 +22,21 @@ describe("reactively hide workloads overview details item", () => {
 
     someObservable = observable.box(false);
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    const windowDi = builder.applicationWindow.only.di;
+
+    const navigateToWorkloadsOverview = windowDi.inject(
+      navigateToWorkloadsOverviewInjectable,
+    );
+
+    navigateToWorkloadsOverview();
+
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         kubeWorkloadsOverviewItems: [
           {
@@ -39,19 +50,7 @@ describe("reactively hide workloads overview details item", () => {
           },
         ],
       },
-    };
-
-    rendered = await builder.render();
-
-    const windowDi = builder.applicationWindow.only.di;
-
-    const navigateToWorkloadsOverview = windowDi.inject(
-      navigateToWorkloadsOverviewInjectable,
-    );
-
-    navigateToWorkloadsOverview();
-
-    builder.extensions.enable(testExtension);
+    });
   });
 
   it("does not show the workload overview detail item", () => {
diff --git a/packages/core/src/features/extension-special-characters-in-page-registrations.test.tsx b/packages/core/src/features/extension-special-characters-in-page-registrations.test.tsx
index ac038a5743..6f614c5e4b 100644
--- a/packages/core/src/features/extension-special-characters-in-page-registrations.test.tsx
+++ b/packages/core/src/features/extension-special-characters-in-page-registrations.test.tsx
@@ -51,8 +51,9 @@ describe("extension special characters in page registrations", () => {
 
 const extensionWithPagesHavingSpecialCharacters: FakeExtensionOptions = {
   id: "some-extension-id",
-  name: "@some-extension-name/",
-
+  manifest: {
+    name: "@some-extension-name/",
+  },
   rendererOptions: {
     globalPages: [
       {
diff --git a/packages/core/src/features/navigate-to-extension-page.test.tsx b/packages/core/src/features/navigate-to-extension-page.test.tsx
index 24f5ec729b..1b756fa9ce 100644
--- a/packages/core/src/features/navigate-to-extension-page.test.tsx
+++ b/packages/core/src/features/navigate-to-extension-page.test.tsx
@@ -125,8 +125,9 @@ describe("navigate to extension page", () => {
 
 const extensionWithPagesHavingParameters: FakeExtensionOptions = {
   id: "some-extension-id",
-  name: "some-extension-name",
-
+  manifest: {
+    name: "some-extension-name",
+  },
   rendererOptions: {
     globalPages: [
       {
diff --git a/packages/core/src/features/preferences/extension-adding-preference-tabs.test.tsx b/packages/core/src/features/preferences/extension-adding-preference-tabs.test.tsx
index a68f39f547..4272c7ef05 100644
--- a/packages/core/src/features/preferences/extension-adding-preference-tabs.test.tsx
+++ b/packages/core/src/features/preferences/extension-adding-preference-tabs.test.tsx
@@ -32,10 +32,11 @@ describe("preferences: extension adding preference tabs", () => {
 
       someObservable = observable.box(false);
 
-      const testExtension = {
+      builder.extensions.enable({
         id: "some-extension-id",
-        name: "some-extension",
-
+        manifest: {
+          name: "some-extension",
+        },
         rendererOptions: {
           appPreferenceTabs: [
             {
@@ -89,9 +90,7 @@ describe("preferences: extension adding preference tabs", () => {
             },
           ],
         },
-      };
-
-      builder.extensions.enable(testExtension);
+      });
     });
 
     it("renders", () => {
diff --git a/packages/core/src/features/preferences/navigation-to-application-preferences.test.tsx b/packages/core/src/features/preferences/navigation-to-application-preferences.test.tsx
index 1176bc984c..ecf1752788 100644
--- a/packages/core/src/features/preferences/navigation-to-application-preferences.test.tsx
+++ b/packages/core/src/features/preferences/navigation-to-application-preferences.test.tsx
@@ -9,7 +9,6 @@ import { getApplicationBuilder } from "../../renderer/components/test-utils/get-
 import navigateToProxyPreferencesInjectable from "./common/navigate-to-proxy-preferences.injectable";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
-import type { FakeExtensionOptions } from "../../renderer/components/test-utils/get-extension-fake";
 
 describe("preferences - navigation to application preferences", () => {
   let builder: ApplicationBuilder;
@@ -47,9 +46,26 @@ describe("preferences - navigation to application preferences", () => {
 
     describe("when extension with application preference items gets enabled", () => {
       beforeEach(() => {
-        builder.extensions.enable(
-          extensionStubWithApplicationPreferenceItems,
-        );
+        builder.extensions.enable({
+          id: "some-test-extension-id",
+          manifest: {
+            name: "some-test-extension-name",
+          },
+          rendererOptions: {
+            appPreferences: [
+              {
+                title: "Some application-preference item",
+                id: "some-application-preference-item-id",
+                showInPreferencesTab: "application",
+
+                components: {
+                  Hint: () => <div data-testid="some-preference-item-hint" />,
+                  Input: () => <div data-testid="some-preference-item-input" />,
+                },
+              },
+            ],
+          },
+        });
       });
 
       it("renders", () => {
@@ -133,23 +149,3 @@ describe("preferences - navigation to application preferences", () => {
     });
   });
 });
-
-const extensionStubWithApplicationPreferenceItems: FakeExtensionOptions = {
-  id: "some-test-extension-id",
-  name: "some-test-extension-name",
-
-  rendererOptions: {
-    appPreferences: [
-      {
-        title: "Some application-preference item",
-        id: "some-application-preference-item-id",
-        showInPreferencesTab: "application",
-
-        components: {
-          Hint: () => <div data-testid="some-preference-item-hint" />,
-          Input: () => <div data-testid="some-preference-item-input" />,
-        },
-      },
-    ],
-  },
-};
diff --git a/packages/core/src/features/preferences/navigation-to-extension-specific-preferences.test.tsx b/packages/core/src/features/preferences/navigation-to-extension-specific-preferences.test.tsx
index 4480871986..de71c5f4f3 100644
--- a/packages/core/src/features/preferences/navigation-to-extension-specific-preferences.test.tsx
+++ b/packages/core/src/features/preferences/navigation-to-extension-specific-preferences.test.tsx
@@ -335,8 +335,9 @@ describe("preferences - navigation to extension specific preferences", () => {
 
 const extensionStubWithExtensionSpecificPreferenceItems: FakeExtensionOptions = {
   id: "some-test-extension-id",
-  name: "some-test-extension-id",
-
+  manifest: {
+    name: "some-test-extension-id",
+  },
   rendererOptions: {
     appPreferences: [
       {
@@ -365,8 +366,9 @@ const extensionStubWithExtensionSpecificPreferenceItems: FakeExtensionOptions =
 
 const someOtherExtensionStubWithExtensionSpecificPreferenceItems: FakeExtensionOptions = {
   id: "some-other-test-extension-id",
-  name: "some-other-test-extension-id",
-
+  manifest: {
+    name: "some-other-test-extension-id",
+  },
   rendererOptions: {
     appPreferences: [
       {
@@ -384,13 +386,16 @@ const someOtherExtensionStubWithExtensionSpecificPreferenceItems: FakeExtensionO
 
 const extensionStubWithoutPreferences: FakeExtensionOptions = {
   id: "without-preferences-id",
-  name: "without-preferences-id",
+  manifest: {
+    name: "without-preferences-id",
+  },
 };
 
 const extensionStubWithShowInPreferencesTab: FakeExtensionOptions = {
   id: "specified-preferences-page-id",
-  name: "specified-preferences-page-name",
-
+  manifest: {
+    name: "specified-preferences-page-name",
+  },
   rendererOptions: {
     appPreferences: [
       {
@@ -409,8 +414,9 @@ const extensionStubWithShowInPreferencesTab: FakeExtensionOptions = {
 
 const extensionStubWithRegisteredTab: FakeExtensionOptions = {
   id: "registered-tab-page-id",
-  name: "registered-tab-page-id",
-
+  manifest: {
+    name: "registered-tab-page-id",
+  },
   rendererOptions: {
     appPreferences: [
       {
@@ -455,8 +461,9 @@ const extensionStubWithRegisteredTab: FakeExtensionOptions = {
 
 const extensionStubWithSameRegisteredTab: FakeExtensionOptions = {
   id: "duplicated-tab-page-id",
-  name: "duplicated-tab-page-id",
-
+  manifest: {
+    name: "duplicated-tab-page-id",
+  },
   rendererOptions: {
     appPreferences: [
       {
diff --git a/packages/core/src/features/preferences/navigation-to-telemetry-preferences.test.tsx b/packages/core/src/features/preferences/navigation-to-telemetry-preferences.test.tsx
index 71d6900f6e..e657bd65cb 100644
--- a/packages/core/src/features/preferences/navigation-to-telemetry-preferences.test.tsx
+++ b/packages/core/src/features/preferences/navigation-to-telemetry-preferences.test.tsx
@@ -8,7 +8,6 @@ import type { ApplicationBuilder } from "../../renderer/components/test-utils/ge
 import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
 import navigateToTelemetryPreferencesInjectable from "./common/navigate-to-telemetry-preferences.injectable";
 import sentryDataSourceNameInjectable from "../../common/vars/sentry-dsn-url.injectable";
-import type { FakeExtensionOptions } from "../../renderer/components/test-utils/get-extension-fake";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
 
@@ -57,9 +56,26 @@ describe("preferences - navigation to telemetry preferences", () => {
 
     describe("when extension with telemetry preference items gets enabled", () => {
       beforeEach(() => {
-        builder.extensions.enable(
-          extensionStubWithTelemetryPreferenceItems,
-        );
+        builder.extensions.enable({
+          id: "some-test-extension-id",
+          manifest: {
+            name: "some-test-extension-name",
+          },
+          rendererOptions: {
+            appPreferences: [
+              {
+                title: "Some telemetry-preference item",
+                id: "some-telemetry-preference-item-id",
+                showInPreferencesTab: "telemetry",
+
+                components: {
+                  Hint: () => <div data-testid="some-preference-item-hint" />,
+                  Input: () => <div data-testid="some-preference-item-input" />,
+                },
+              },
+            ],
+          },
+        });
       });
 
       it("renders", () => {
@@ -107,8 +123,9 @@ describe("preferences - navigation to telemetry preferences", () => {
     it("given extensions but no telemetry preference items, does not show link for telemetry preferences", () => {
       builder.extensions.enable({
         id: "some-test-extension-id",
-        name: "some-test-extension-name",
-
+        manifest: {
+          name: "some-test-extension-name",
+        },
         rendererOptions: {
           appPreferenceTabs: [
             {
@@ -205,23 +222,3 @@ describe("preferences - navigation to telemetry preferences", () => {
     });
   });
 });
-
-const extensionStubWithTelemetryPreferenceItems: FakeExtensionOptions = {
-  id: "some-test-extension-id",
-  name: "some-test-extension-name",
-
-  rendererOptions: {
-    appPreferences: [
-      {
-        title: "Some telemetry-preference item",
-        id: "some-telemetry-preference-item-id",
-        showInPreferencesTab: "telemetry",
-
-        components: {
-          Hint: () => <div data-testid="some-preference-item-hint" />,
-          Input: () => <div data-testid="some-preference-item-input" />,
-        },
-      },
-    ],
-  },
-};
diff --git a/packages/core/src/features/preferences/urls-of-legacy-extensions.test.tsx b/packages/core/src/features/preferences/urls-of-legacy-extensions.test.tsx
index 1eba04c683..a85f1d6269 100644
--- a/packages/core/src/features/preferences/urls-of-legacy-extensions.test.tsx
+++ b/packages/core/src/features/preferences/urls-of-legacy-extensions.test.tsx
@@ -28,10 +28,11 @@ describe("preferences: URLs of legacy extensions", () => {
 
       discover = discoverFor(() => rendered);
 
-      const testExtension = {
+      builder.extensions.enable({
         id: "some-extension-id",
-        name: "some-extension",
-
+        manifest: {
+          name: "some-extension",
+        },
         rendererOptions: {
           appPreferenceTabs: [
             {
@@ -71,9 +72,7 @@ describe("preferences: URLs of legacy extensions", () => {
             },
           ],
         },
-      };
-
-      builder.extensions.enable(testExtension);
+      });
 
       navigate = builder.applicationWindow.only.di.inject(navigateInjectable);
     });
@@ -143,10 +142,11 @@ describe("preferences: URLs of legacy extensions", () => {
 
       discover = discoverFor(() => rendered);
 
-      const testExtension = {
+      builder.extensions.enable({
         id: "some-extension-id",
-        name: "some-extension",
-
+        manifest: {
+          name: "some-extension",
+        },
         rendererOptions: {
           appPreferences: [
             {
@@ -160,9 +160,7 @@ describe("preferences: URLs of legacy extensions", () => {
             },
           ],
         },
-      };
-
-      builder.extensions.enable(testExtension);
+      });
 
       navigate = builder.applicationWindow.only.di.inject(navigateInjectable);
     });
@@ -203,10 +201,11 @@ describe("preferences: URLs of legacy extensions", () => {
 
       discover = discoverFor(() => rendered);
 
-      const testExtension = {
+      builder.extensions.enable({
         id: "some-extension-id",
-        name: "some-extension",
-
+        manifest: {
+          name: "some-extension",
+        },
         rendererOptions: {
           appPreferenceTabs: [
             {
@@ -256,9 +255,7 @@ describe("preferences: URLs of legacy extensions", () => {
             },
           ],
         },
-      };
-
-      builder.extensions.enable(testExtension);
+      });
 
       navigate = builder.applicationWindow.only.di.inject(navigateInjectable);
     });
diff --git a/packages/core/src/features/routes/extension-api/reactively-disable-global-pages.test.tsx b/packages/core/src/features/routes/extension-api/reactively-disable-global-pages.test.tsx
index deb4015480..cdb03e60c8 100644
--- a/packages/core/src/features/routes/extension-api/reactively-disable-global-pages.test.tsx
+++ b/packages/core/src/features/routes/extension-api/reactively-disable-global-pages.test.tsx
@@ -21,10 +21,13 @@ describe("reactively disable global pages", () => {
 
     someObservable = observable.box(false);
 
-    const testExtension = {
-      id: "test-extension-id",
-      name: "test-extension",
+    rendered = await builder.render();
 
+    builder.extensions.enable({
+      id: "test-extension-id",
+      manifest: {
+        name: "test-extension",
+      },
       rendererOptions: {
         globalPages: [{
           components: {
@@ -34,11 +37,7 @@ describe("reactively disable global pages", () => {
           enabled: computed(() => someObservable.get()),
         }],
       },
-    };
-
-    rendered = await builder.render();
-
-    builder.extensions.enable(testExtension);
+    });
 
     rendererTestExtension = builder.extensions.get("test-extension-id").applicationWindows.only;
   });
diff --git a/packages/core/src/features/status-bar/status-bar-items-originating-from-extensions.test.tsx b/packages/core/src/features/status-bar/status-bar-items-originating-from-extensions.test.tsx
index a23ffa2dd1..010673e0f8 100644
--- a/packages/core/src/features/status-bar/status-bar-items-originating-from-extensions.test.tsx
+++ b/packages/core/src/features/status-bar/status-bar-items-originating-from-extensions.test.tsx
@@ -30,39 +30,40 @@ describe("status-bar-items-originating-from-extensions", () => {
     });
 
     it("when multiple extensions with status bar items are loaded, shows items in correct order", () => {
-      const testExtension1 = {
-        id: "some-id",
-        name: "some-name",
-
-        rendererOptions: {
-          statusBarItems: [
-            {
-              components: {
-                Item: () => <div data-testid="some-testId">extension1</div>,
-                position: "right" as const,
+      applicationBuilder.extensions.enable(
+        {
+          id: "some-id",
+          manifest: {
+            name: "some-name",
+          },
+          rendererOptions: {
+            statusBarItems: [
+              {
+                components: {
+                  Item: () => <div data-testid="some-testId">extension1</div>,
+                  position: "right" as const,
+                },
               },
-            },
-          ],
+            ],
+          },
         },
-      };
-
-      const testExtension2 = {
-        id: "some-other-id",
-        name: "some-other-name",
-
-        rendererOptions: {
-          statusBarItems: [
-            {
-              components: {
-                Item: () => <div data-testid="some-testId">extension2</div>,
-                position: "right" as const,
+        {
+          id: "some-other-id",
+          manifest: {
+            name: "some-other-name",
+          },
+          rendererOptions: {
+            statusBarItems: [
+              {
+                components: {
+                  Item: () => <div data-testid="some-testId">extension2</div>,
+                  position: "right" as const,
+                },
               },
-            },
-          ],
+            ],
+          },
         },
-      };
-
-      applicationBuilder.extensions.enable(testExtension1, testExtension2);
+      );
 
       const rightSide = rendered.getByTestId("status-bar-right");
 
@@ -80,8 +81,9 @@ describe("status-bar-items-originating-from-extensions", () => {
       beforeEach(() => {
         testExtensionOptions = {
           id: "some-id",
-          name: "some-name",
-
+          manifest: {
+            name: "some-name",
+          },
           rendererOptions: {
             statusBarItems: [
               {
diff --git a/packages/core/src/features/top-bar/extension-api/extendability-using-extension-api.test.tsx b/packages/core/src/features/top-bar/extension-api/extendability-using-extension-api.test.tsx
index 70a06574a7..8601bb246b 100644
--- a/packages/core/src/features/top-bar/extension-api/extendability-using-extension-api.test.tsx
+++ b/packages/core/src/features/top-bar/extension-api/extendability-using-extension-api.test.tsx
@@ -33,8 +33,9 @@ describe("extendability-using-extension-api", () => {
     beforeEach(() => {
       testExtension = {
         id: "test-extension",
-        name: "Test Extension",
-
+        manifest: {
+          name: "Test Extension",
+        },
         rendererOptions: {
           topBarItems: [
             {
@@ -78,8 +79,9 @@ describe("extendability-using-extension-api", () => {
     beforeEach(() => {
       const testExtension: FakeExtensionOptions = {
         id: "test-extension",
-        name: "Test Extension",
-
+        manifest: {
+          name: "Test Extension",
+        },
         rendererOptions: {
           topBarItems: [
             {
diff --git a/packages/core/src/features/tray/clicking-tray-menu-item-originating-from-extension.test.ts b/packages/core/src/features/tray/clicking-tray-menu-item-originating-from-extension.test.ts
index 4ba4ecbcd7..851a316c8d 100644
--- a/packages/core/src/features/tray/clicking-tray-menu-item-originating-from-extension.test.ts
+++ b/packages/core/src/features/tray/clicking-tray-menu-item-originating-from-extension.test.ts
@@ -34,7 +34,9 @@ describe("clicking tray menu item originating from extension", () => {
 
       someExtension = {
         id: "some-extension-id",
-        name: "some-extension-name",
+        manifest: {
+          name: "some-extension-name",
+        },
         mainOptions: {
           trayMenus: [{ label: "some-label", click: clickMock }],
         },
diff --git a/packages/core/src/features/tray/extension-adding-tray-items.test.tsx b/packages/core/src/features/tray/extension-adding-tray-items.test.tsx
index 2b640be07c..2a5e506d08 100644
--- a/packages/core/src/features/tray/extension-adding-tray-items.test.tsx
+++ b/packages/core/src/features/tray/extension-adding-tray-items.test.tsx
@@ -26,10 +26,11 @@ describe("preferences: extension adding tray items", () => {
       someObservableForEnabled = observable.box(false);
       someObservableLabel = observable.box("Some label");
 
-      const testExtension = {
+      builder.extensions.enable({
         id: "some-extension-id",
-        name: "some-extension",
-
+        manifest: {
+          name: "some-extension",
+        },
         mainOptions: {
           trayMenus: [
             {
@@ -80,9 +81,7 @@ describe("preferences: extension adding tray items", () => {
             },
           ],
         },
-      };
-
-      builder.extensions.enable(testExtension);
+      });
     });
 
     describe("given controlled label", () => {
@@ -214,16 +213,15 @@ describe("preferences: extension adding tray items", () => {
 
       const computedTrayMenu = computed(() => menuItems);
 
-      const testExtension = {
+      builder.extensions.enable({
         id: "some-extension-id",
-        name: "some-extension",
-
+        manifest: {
+          name: "some-extension",
+        },
         mainOptions: {
           trayMenus: computedTrayMenu,
         },
-      };
-
-      builder.extensions.enable(testExtension);
+      });
     });
 
     it("given item exists, it's shown", () => {
diff --git a/packages/core/src/features/tray/multiple-separators-originating-from-extension.test.ts b/packages/core/src/features/tray/multiple-separators-originating-from-extension.test.ts
index fd21d78bae..d7450cf8ca 100644
--- a/packages/core/src/features/tray/multiple-separators-originating-from-extension.test.ts
+++ b/packages/core/src/features/tray/multiple-separators-originating-from-extension.test.ts
@@ -21,17 +21,16 @@ describe("multiple separators originating from extension", () => {
   });
 
   it("given extension with multiple separators, when extension is enabled, does not throw", () => {
-    const someExtension = {
-      id: "some-extension-id",
-      name: "some-extension",
-
-      mainOptions: {
-        trayMenus: [{ type: "separator" as const }, { type: "separator" as const } ],
-      },
-    };
-
     expect(() => {
-      builder.extensions.enable(someExtension);
+      builder.extensions.enable({
+        id: "some-extension-id",
+        manifest: {
+          name: "some-extension",
+        },
+        mainOptions: {
+          trayMenus: [{ type: "separator" as const }, { type: "separator" as const } ],
+        },
+      });
     }).not.toThrow();
   });
 });
diff --git a/packages/core/src/features/welcome/banners-from-extension.test.tsx b/packages/core/src/features/welcome/banners-from-extension.test.tsx
index 5e3a4075b6..68fbafdbf4 100644
--- a/packages/core/src/features/welcome/banners-from-extension.test.tsx
+++ b/packages/core/src/features/welcome/banners-from-extension.test.tsx
@@ -31,7 +31,9 @@ describe("Banners from extensions", () => {
     beforeEach(() => {
       builder.extensions.enable({
         id: "some-id",
-        name: "some-name",
+        manifest: {
+          name: "some-name",
+        },
         rendererOptions: {
           welcomeBanners: [
             {
@@ -55,7 +57,9 @@ describe("Banners from extensions", () => {
     beforeEach(() => {
       builder.extensions.enable({
         id: "some-id",
-        name: "some-name",
+        manifest: {
+          name: "some-name",
+        },
         rendererOptions: {
           welcomeBanners: [
             {
diff --git a/packages/core/src/features/welcome/setting-welcome-page.test.tsx b/packages/core/src/features/welcome/setting-welcome-page.test.tsx
index fc5a0fe4a9..6fa9b9e66b 100644
--- a/packages/core/src/features/welcome/setting-welcome-page.test.tsx
+++ b/packages/core/src/features/welcome/setting-welcome-page.test.tsx
@@ -32,7 +32,7 @@ describe("setting-welcome-page", () => {
         windowDi.override(welcomeRouteConfigInjectable, () => "/welcome");
       });
 
-      // enable the extension even though the welcomeRoute is not overriden
+      // enable the extension even though the welcomeRoute is not overridden
       applicationBuilder.extensions.enable(extensionWithWelcomePage);
       rendered = await applicationBuilder.render();
 
@@ -84,8 +84,9 @@ describe("setting-welcome-page", () => {
 
 const extensionWithWelcomePage: FakeExtensionOptions = {
   id: "some-extension-id",
-  name: "some-extension-name",
-
+  manifest: {
+    name: "some-extension-name",
+  },
   rendererOptions: {
     globalPages: [
       {
diff --git a/packages/core/src/renderer/components/status-bar/status-bar.test.tsx b/packages/core/src/renderer/components/status-bar/status-bar.test.tsx
index 82ce2e2852..8ade0268d8 100644
--- a/packages/core/src/renderer/components/status-bar/status-bar.test.tsx
+++ b/packages/core/src/renderer/components/status-bar/status-bar.test.tsx
@@ -31,8 +31,9 @@ describe("<StatusBar />", () => {
 
     builder.extensions.enable({
       id: "some-id",
-      name: "some-name",
-
+      manifest: {
+        name: "some-name",
+      },
       rendererOptions: {
         statusBarItems,
       },
@@ -61,7 +62,7 @@ describe("<StatusBar />", () => {
 
   it("renders items [{item: React.ReactNode}] (4.0.0-rc.1)", async () => {
     const testId = "testId";
-    const text = "heee";
+    const text = "help";
 
     builder.beforeWindowStart((windowDi) => {
       windowDi.override(statusBarItemsInjectable, () => computed(() => ({
@@ -77,7 +78,7 @@ describe("<StatusBar />", () => {
 
   it("renders items [{item: () => React.ReactNode}] (4.0.0-rc.1+)", async () => {
     const testId = "testId";
-    const text = "heee";
+    const text = "help";
 
     statusBarItems.replace([{
       item: () => <span data-testid={testId} >{text}</span>,
@@ -117,8 +118,8 @@ describe("<StatusBar />", () => {
     ]);
 
     const { getAllByTestId } = await builder.render();
-    const elems = getAllByTestId("sortedElem");
-    const positions = elems.map(elem => elem.textContent);
+    const elements = getAllByTestId("sortedElem");
+    const positions = elements.map(elem => elem.textContent);
 
     expect(positions).toEqual(["left1", "left2", "right2", "right1"]);
   });
diff --git a/packages/core/src/renderer/components/test-utils/get-application-builder.tsx b/packages/core/src/renderer/components/test-utils/get-application-builder.tsx
index 07583351f2..2b123666bb 100644
--- a/packages/core/src/renderer/components/test-utils/get-application-builder.tsx
+++ b/packages/core/src/renderer/components/test-utils/get-application-builder.tsx
@@ -569,29 +569,16 @@ export const getApplicationBuilder = () => {
 
       enable: (...extensions) => {
         builder.afterWindowStart((windowDi) => {
-          const rendererExtensionInstances = extensions.map((options) =>
-            getExtensionFakeForRenderer(
-              windowDi,
-              options.id,
-              options.name,
-              options.rendererOptions || {},
-            ),
-          );
-
-          rendererExtensionInstances.forEach(
-            enableExtensionFor(windowDi, rendererExtensionsStateInjectable),
-          );
+          extensions
+            .map(getExtensionFakeForRenderer)
+            .forEach(enableExtensionFor(windowDi, rendererExtensionsStateInjectable));
         });
 
         builder.afterApplicationStart((mainDi) => {
-          const mainExtensionInstances = extensions.map((extension) =>
-            getExtensionFakeForMain(mainDi, extension.id, extension.name, extension.mainOptions || {}),
-          );
-
           runInAction(() => {
-            mainExtensionInstances.forEach(
-              enableExtensionFor(mainDi, mainExtensionsStateInjectable),
-            );
+            extensions
+              .map(getExtensionFakeForMain)
+              .forEach(enableExtensionFor(mainDi, mainExtensionsStateInjectable));
           });
         });
       },
diff --git a/packages/core/src/renderer/components/test-utils/get-extension-fake.ts b/packages/core/src/renderer/components/test-utils/get-extension-fake.ts
index 41ac5ad869..e97f5e61fa 100644
--- a/packages/core/src/renderer/components/test-utils/get-extension-fake.ts
+++ b/packages/core/src/renderer/components/test-utils/get-extension-fake.ts
@@ -2,21 +2,26 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
+import type { LensMainExtensionParts } from "../../../extensions/lens-main-extension";
 import { LensMainExtension } from "../../../extensions/lens-main-extension";
+import type { LensRendererExtensionParts } from "../../../extensions/lens-renderer-extension";
 import { LensRendererExtension } from "../../../extensions/lens-renderer-extension";
-import type { DiContainer } from "@ogre-tools/injectable";
+import type { SetRequired } from "type-fest";
+import type { LensExtensionManifest } from "../../../features/extensions/common/installed-extension";
 
 export class TestExtensionMain extends LensMainExtension {}
 export class TestExtensionRenderer extends LensRendererExtension {}
 
+type FakeManifest = SetRequired<Partial<LensExtensionManifest>, "name">;
+
 export interface FakeExtensionOptions {
   id: string;
-  name: string;
-  rendererOptions?: Partial<LensRendererExtension>;
-  mainOptions?: Partial<LensMainExtension>;
+  manifest: FakeManifest;
+  rendererOptions?: Partial<LensRendererExtensionParts>;
+  mainOptions?: Partial<LensMainExtensionParts>;
 }
 
-export const getExtensionFakeForMain = (di: DiContainer, id: string, name: string, options: Partial<LensMainExtension>) => (
+export const getExtensionFakeForMain = ({ id, manifest, mainOptions: options = {}}: FakeExtensionOptions) => (
   Object.assign(
     new TestExtensionMain({
       id,
@@ -25,11 +30,11 @@ export const getExtensionFakeForMain = (di: DiContainer, id: string, name: strin
       isCompatible: false,
       isEnabled: false,
       manifest: {
-        name,
         version: "1.0.0",
         engines: {
           lens: "^5.5.0",
         },
+        ...manifest,
       },
       manifestPath: "irrelevant",
     }),
@@ -37,7 +42,7 @@ export const getExtensionFakeForMain = (di: DiContainer, id: string, name: strin
   )
 );
 
-export const getExtensionFakeForRenderer = (di: DiContainer, id: string, name: string, options: Partial<LensRendererExtension>) => (
+export const getExtensionFakeForRenderer = ({ id, manifest, rendererOptions: options = {}}: FakeExtensionOptions) => (
   Object.assign(
     new TestExtensionRenderer({
       id,
@@ -46,11 +51,11 @@ export const getExtensionFakeForRenderer = (di: DiContainer, id: string, name: s
       isCompatible: false,
       isEnabled: false,
       manifest: {
-        name,
         version: "1.0.0",
         engines: {
           lens: "^5.5.0",
         },
+        ...manifest,
       },
       manifestPath: "irrelevant",
     }),