diff --git a/src/vs/workbench/contrib/notebook/browser/notebookServiceImpl.ts b/src/vs/workbench/contrib/notebook/browser/notebookServiceImpl.ts
index 2a934aa89c0..0752aea54b4 100644
--- a/src/vs/workbench/contrib/notebook/browser/notebookServiceImpl.ts
+++ b/src/vs/workbench/contrib/notebook/browser/notebookServiceImpl.ts
@@ -30,7 +30,7 @@ import { INotebookEditorOptions } from 'vs/workbench/contrib/notebook/browser/no
 import { NotebookDiffEditorInput } from 'vs/workbench/contrib/notebook/browser/notebookDiffEditorInput';
 import { NotebookCellTextModel } from 'vs/workbench/contrib/notebook/common/model/notebookCellTextModel';
 import { NotebookTextModel } from 'vs/workbench/contrib/notebook/common/model/notebookTextModel';
-import { ACCESSIBLE_NOTEBOOK_DISPLAY_ORDER, BUILTIN_RENDERER_ID, CellUri, DisplayOrderKey, INotebookContributionData, INotebookExclusiveDocumentFilter, INotebookRendererInfo, INotebookTextModel, IOrderedMimeType, IOutputDto, MimeTypeDisplayOrder, mimeTypeIsAlwaysSecure, mimeTypeSupportedByCore, NotebookData, NotebookEditorPriority, NotebookRendererMatch, NotebookTextDiffEditorPreview, NOTEBOOK_DISPLAY_ORDER, RENDERER_NOT_AVAILABLE, TransientOptions } from 'vs/workbench/contrib/notebook/common/notebookCommon';
+import { ACCESSIBLE_NOTEBOOK_DISPLAY_ORDER, BUILTIN_RENDERER_ID, CellUri, DisplayOrderKey, INotebookContributionData, INotebookExclusiveDocumentFilter, INotebookRendererInfo, INotebookTextModel, IOrderedMimeType, IOutputDto, MimeTypeDisplayOrder, mimeTypeIsAlwaysSecure, mimeTypeSupportedByCore, NotebookData, NotebookEditorPriority, NotebookRendererMatch, NotebookTextDiffEditorPreview, NOTEBOOK_DISPLAY_ORDER, RENDERER_EQUIVALENT_EXTENSIONS, RENDERER_NOT_AVAILABLE, TransientOptions } from 'vs/workbench/contrib/notebook/common/notebookCommon';
 import { NotebookEditorInput } from 'vs/workbench/contrib/notebook/common/notebookEditorInput';
 import { INotebookEditorModelResolverService } from 'vs/workbench/contrib/notebook/common/notebookEditorModelResolverService';
 import { updateEditorTopPadding } from 'vs/workbench/contrib/notebook/common/notebookOptions';
@@ -314,11 +314,12 @@ export class NotebookOutputRendererInfoStore {
 		const enum ReuseOrder {
 			PreviouslySelected = 1 << 8,
 			SameExtensionAsNotebook = 2 << 8,
-			OtherRenderer = 3 << 8,
-			BuiltIn = 4 << 8,
+			BuiltIn = 3 << 8,
+			OtherRenderer = 4 << 8,
 		}
 
-		const preferred = notebookProviderInfo && this.preferredMimetype.getValue()[notebookProviderInfo.id]?.[mimeType];
+		const preferred = false && notebookProviderInfo && this.preferredMimetype.getValue()[notebookProviderInfo.id]?.[mimeType];
+		const notebookExtId = notebookProviderInfo?.extension?.value;
 		const renderers: { ordered: IOrderedMimeType, score: number }[] = Array.from(this.contributedRenderers.values())
 			.map(renderer => {
 				const ownScore = kernelProvides === undefined
@@ -329,9 +330,10 @@ export class NotebookOutputRendererInfoStore {
 					return undefined;
 				}
 
+				const rendererExtId = renderer.extensionId.value;
 				const reuseScore = preferred === renderer.id
 					? ReuseOrder.PreviouslySelected
-					: renderer.extensionId.value === notebookProviderInfo?.extension?.value
+					: rendererExtId === notebookExtId || RENDERER_EQUIVALENT_EXTENSIONS.get(rendererExtId)?.has(notebookExtId!)
 						? ReuseOrder.SameExtensionAsNotebook
 						: renderer.isBuiltin ? ReuseOrder.BuiltIn : ReuseOrder.OtherRenderer;
 				return {
diff --git a/src/vs/workbench/contrib/notebook/common/notebookCommon.ts b/src/vs/workbench/contrib/notebook/common/notebookCommon.ts
index 30c85558cdd..badebb06286 100644
--- a/src/vs/workbench/contrib/notebook/common/notebookCommon.ts
+++ b/src/vs/workbench/contrib/notebook/common/notebookCommon.ts
@@ -56,6 +56,17 @@ export const ACCESSIBLE_NOTEBOOK_DISPLAY_ORDER: readonly string[] = [
 	'image/jpeg',
 ];
 
+/**
+ * A mapping of extension IDs who contain renderers, to extensions who they
+ * should be treated as the same in the renderer selection logic. This is used
+ * to prefer the 1st party Jupyter renderers even though they're in a separate
+ * extension, for instance. See #136247.
+ */
+export const RENDERER_EQUIVALENT_EXTENSIONS: ReadonlyMap<string, ReadonlySet<string>> = new Map([
+	['ms-toolsai.jupyter', new Set(['vscode.ipynb'])],
+	['ms-toolsai.jupyter-renderers', new Set(['vscode.ipynb'])],
+]);
+
 export const BUILTIN_RENDERER_ID = '_builtin';
 export const RENDERER_NOT_AVAILABLE = '_notAvailable';