diff --git a/packages/react-grab/src/utils/open-file.ts b/packages/react-grab/src/utils/open-file.ts
index c6547084e..474115b24 100644
--- a/packages/react-grab/src/utils/open-file.ts
+++ b/packages/react-grab/src/utils/open-file.ts
@@ -1,12 +1,19 @@
 import { checkIsNextProject } from "../core/context.js";
 import { buildOpenFileUrl } from "./build-open-file-url.js";
 
+// Next.js App Router dev server injects a virtual path segment into stack frames.
+// Strip it before passing the path to the launch-editor endpoint.
+const stripAppRouterVirtualSegments = (filePath: string): string =>
+  filePath.replace(/\/\(app-pages-browser\)\//g, "/");
+
 const tryDevServerOpen = async (
   filePath: string,
   lineNumber: number | undefined,
 ): Promise<boolean> => {
   const isNextProject = checkIsNextProject();
-  const params = new URLSearchParams({ file: filePath });
+  const params = new URLSearchParams({
+    file: isNextProject ? stripAppRouterVirtualSegments(filePath) : filePath,
+  });
 
   const lineKey = isNextProject ? "line1" : "line";
   const columnKey = isNextProject ? "column1" : "column";
@@ -25,15 +32,19 @@ export const openFile = async (
   lineNumber: number | undefined,
   transformUrl?: (url: string, filePath: string, lineNumber?: number) => string,
 ): Promise<void> => {
+  const normalizedPath = checkIsNextProject()
+    ? stripAppRouterVirtualSegments(filePath)
+    : filePath;
+
   const wasOpenedByDevServer = await tryDevServerOpen(
-    filePath,
+    normalizedPath,
     lineNumber,
   ).catch(() => false);
   if (wasOpenedByDevServer) return;
 
-  const rawUrl = buildOpenFileUrl(filePath, lineNumber);
+  const rawUrl = buildOpenFileUrl(normalizedPath, lineNumber);
   const url = transformUrl
-    ? transformUrl(rawUrl, filePath, lineNumber)
+    ? transformUrl(rawUrl, normalizedPath, lineNumber)
     : rawUrl;
   window.open(url, "_blank", "noopener,noreferrer");
 };