diff --git a/apps/client/src/features/editor/components/audio/audio-menu.tsx b/apps/client/src/features/editor/components/audio/audio-menu.tsx
index 3ca1950da..eadc1afe5 100644
--- a/apps/client/src/features/editor/components/audio/audio-menu.tsx
+++ b/apps/client/src/features/editor/components/audio/audio-menu.tsx
@@ -2,6 +2,7 @@ import { BubbleMenu as BaseBubbleMenu } from "@tiptap/react/menus";
 import { findParentNode, posToDOMRect, useEditorState } from "@tiptap/react";
 import { useCallback } from "react";
 import { Node as PMNode } from "@tiptap/pm/model";
+import { isEditorReady } from "@docmost/editor-ext";
 import {
   EditorMenuProps,
   ShouldShowProps,
@@ -46,7 +47,7 @@ export function AudioMenu({ editor }: EditorMenuProps) {
   );
 
   const getReferencedVirtualElement = useCallback(() => {
-    if (!editor) return;
+    if (!isEditorReady(editor)) return;
     const { selection } = editor.state;
     const predicate = (node: PMNode) => node.type.name === "audio";
     const parent = findParentNode(predicate)(selection);
diff --git a/apps/client/src/features/editor/components/callout/callout-menu.tsx b/apps/client/src/features/editor/components/callout/callout-menu.tsx
index 69c836934..3ce022dae 100644
--- a/apps/client/src/features/editor/components/callout/callout-menu.tsx
+++ b/apps/client/src/features/editor/components/callout/callout-menu.tsx
@@ -16,7 +16,7 @@ import {
   IconMoodSmile,
   IconNotes,
 } from "@tabler/icons-react";
-import { CalloutType, isTextSelected } from "@docmost/editor-ext";
+import { CalloutType, isEditorReady, isTextSelected } from "@docmost/editor-ext";
 import { useTranslation } from "react-i18next";
 import EmojiPicker from "@/components/ui/emoji-picker.tsx";
 import classes from "../common/toolbar-menu.module.css";
@@ -55,7 +55,7 @@ export function CalloutMenu({ editor }: EditorMenuProps) {
   });
 
   const getReferencedVirtualElement = useCallback(() => {
-    if (!editor) return;
+    if (!isEditorReady(editor)) return;
     const { selection } = editor.state;
     const predicate = (node: PMNode) => node.type.name === "callout";
     const parent = findParentNode(predicate)(selection);
diff --git a/apps/client/src/features/editor/components/columns/columns-menu.tsx b/apps/client/src/features/editor/components/columns/columns-menu.tsx
index 0ee99508c..4a1f041eb 100644
--- a/apps/client/src/features/editor/components/columns/columns-menu.tsx
+++ b/apps/client/src/features/editor/components/columns/columns-menu.tsx
@@ -19,7 +19,7 @@ import {
   IconCopy,
   IconTrash,
 } from "@tabler/icons-react";
-import { isTextSelected } from "@docmost/editor-ext";
+import { isEditorReady, isTextSelected } from "@docmost/editor-ext";
 import type { WidthMode, ColumnsLayout } from "@docmost/editor-ext";
 import { useTranslation } from "react-i18next";
 import classes from "../common/toolbar-menu.module.css";
@@ -82,7 +82,7 @@ export function ColumnsMenu({ editor }: EditorMenuProps) {
 
   const shouldShow = useCallback(
     ({ state }: ShouldShowProps) => {
-      if (!state) return false;
+      if (!state || !isEditorReady(editor)) return false;
       if (!editor.isActive("columns")) return false;
       if (isTextSelected(editor)) return false;
       if (nodesWithMenus.some((name) => editor.isActive(name))) return false;
@@ -121,7 +121,7 @@ export function ColumnsMenu({ editor }: EditorMenuProps) {
   });
 
   const getReferencedVirtualElement = useCallback(() => {
-    if (!editor) return;
+    if (!isEditorReady(editor)) return;
     const { selection } = editor.state;
     const predicate = (node: PMNode) => node.type.name === "columns";
     const parent = findParentNode(predicate)(selection);
diff --git a/apps/client/src/features/editor/components/drawio/drawio-menu.tsx b/apps/client/src/features/editor/components/drawio/drawio-menu.tsx
index 869decd71..877911750 100644
--- a/apps/client/src/features/editor/components/drawio/drawio-menu.tsx
+++ b/apps/client/src/features/editor/components/drawio/drawio-menu.tsx
@@ -2,6 +2,7 @@ import { BubbleMenu as BaseBubbleMenu } from "@tiptap/react/menus";
 import { findParentNode, posToDOMRect, useEditorState } from "@tiptap/react";
 import { useCallback, useEffect, useRef, useState } from "react";
 import { Node as PMNode } from "@tiptap/pm/model";
+import { isEditorReady } from "@docmost/editor-ext";
 import {
   EditorMenuProps,
   ShouldShowProps,
@@ -81,7 +82,7 @@ export function DrawioMenu({ editor }: EditorMenuProps) {
   );
 
   const getReferencedVirtualElement = useCallback(() => {
-    if (!editor) return;
+    if (!isEditorReady(editor)) return;
     const { selection } = editor.state;
     const predicate = (node: PMNode) => node.type.name === "drawio";
     const parent = findParentNode(predicate)(selection);
diff --git a/apps/client/src/features/editor/components/excalidraw/excalidraw-menu.tsx b/apps/client/src/features/editor/components/excalidraw/excalidraw-menu.tsx
index fd3128062..823c2c213 100644
--- a/apps/client/src/features/editor/components/excalidraw/excalidraw-menu.tsx
+++ b/apps/client/src/features/editor/components/excalidraw/excalidraw-menu.tsx
@@ -2,6 +2,7 @@ import { BubbleMenu as BaseBubbleMenu } from "@tiptap/react/menus";
 import { findParentNode, posToDOMRect, useEditorState } from "@tiptap/react";
 import { lazy, Suspense, useCallback, useEffect, useRef, useState } from "react";
 import { Node as PMNode } from "@tiptap/pm/model";
+import { isEditorReady } from "@docmost/editor-ext";
 import {
   EditorMenuProps,
   ShouldShowProps,
@@ -94,7 +95,7 @@ export function ExcalidrawMenu({ editor }: EditorMenuProps) {
   );
 
   const getReferencedVirtualElement = useCallback(() => {
-    if (!editor) return;
+    if (!isEditorReady(editor)) return;
     const { selection } = editor.state;
     const predicate = (node: PMNode) => node.type.name === "excalidraw";
     const parent = findParentNode(predicate)(selection);
diff --git a/apps/client/src/features/editor/components/image/image-menu.tsx b/apps/client/src/features/editor/components/image/image-menu.tsx
index 666fab7dc..1b2d00e7e 100644
--- a/apps/client/src/features/editor/components/image/image-menu.tsx
+++ b/apps/client/src/features/editor/components/image/image-menu.tsx
@@ -2,6 +2,7 @@ import { BubbleMenu as BaseBubbleMenu } from "@tiptap/react/menus";
 import { findParentNode, posToDOMRect, useEditorState } from "@tiptap/react";
 import React, { useCallback, useRef } from "react";
 import { Node as PMNode } from "@tiptap/pm/model";
+import { isEditorReady } from "@docmost/editor-ext";
 import {
   EditorMenuProps,
   ShouldShowProps,
@@ -56,7 +57,7 @@ export function ImageMenu({ editor }: EditorMenuProps) {
   );
 
   const getReferencedVirtualElement = useCallback(() => {
-    if (!editor) return;
+    if (!isEditorReady(editor)) return;
     const { selection } = editor.state;
     const predicate = (node: PMNode) => node.type.name === "image";
     const parent = findParentNode(predicate)(selection);
diff --git a/apps/client/src/features/editor/components/pdf/pdf-menu.tsx b/apps/client/src/features/editor/components/pdf/pdf-menu.tsx
index 2104bfbc6..3fc8b6fd1 100644
--- a/apps/client/src/features/editor/components/pdf/pdf-menu.tsx
+++ b/apps/client/src/features/editor/components/pdf/pdf-menu.tsx
@@ -2,6 +2,7 @@ import { BubbleMenu as BaseBubbleMenu } from "@tiptap/react/menus";
 import { findParentNode, posToDOMRect, useEditorState } from "@tiptap/react";
 import { useCallback } from "react";
 import { Node as PMNode } from "@tiptap/pm/model";
+import { isEditorReady } from "@docmost/editor-ext";
 import {
   EditorMenuProps,
   ShouldShowProps,
@@ -37,9 +38,8 @@ export function PdfMenu({ editor }: EditorMenuProps) {
 
   const shouldShow = useCallback(
     ({ state }: ShouldShowProps) => {
-      if (!state || !editor.isActive("pdf")) {
-        return false;
-      }
+      if (!state || !isEditorReady(editor)) return false;
+      if (!editor.isActive("pdf")) return false;
 
       const { selection } = state;
       const dom = editor.view.nodeDOM(selection.from) as HTMLElement | null;
@@ -51,7 +51,7 @@ export function PdfMenu({ editor }: EditorMenuProps) {
   );
 
   const getReferencedVirtualElement = useCallback(() => {
-    if (!editor) return;
+    if (!isEditorReady(editor)) return;
     const { selection } = editor.state;
     const predicate = (node: PMNode) => node.type.name === "pdf";
     const parent = findParentNode(predicate)(selection);
diff --git a/apps/client/src/features/editor/components/subpages/subpages-menu.tsx b/apps/client/src/features/editor/components/subpages/subpages-menu.tsx
index 9f0544e67..a626e1ee2 100644
--- a/apps/client/src/features/editor/components/subpages/subpages-menu.tsx
+++ b/apps/client/src/features/editor/components/subpages/subpages-menu.tsx
@@ -6,6 +6,7 @@ import { ActionIcon, Tooltip } from "@mantine/core";
 import { IconTrash } from "@tabler/icons-react";
 import { useTranslation } from "react-i18next";
 import { Editor } from "@tiptap/core";
+import { isEditorReady } from "@docmost/editor-ext";
 
 interface SubpagesMenuProps {
   editor: Editor;
@@ -33,6 +34,7 @@ export const SubpagesMenu = React.memo(
     );
 
     const getReferenceClientRect = useCallback(() => {
+      if (!isEditorReady(editor)) return new DOMRect();
       const { selection } = editor.state;
       const predicate = (node: PMNode) => node.type.name === "subpages";
       const parent = findParentNode(predicate)(selection);
diff --git a/apps/client/src/features/editor/components/table/table-menu.tsx b/apps/client/src/features/editor/components/table/table-menu.tsx
index 3be7ec539..92cc318e9 100644
--- a/apps/client/src/features/editor/components/table/table-menu.tsx
+++ b/apps/client/src/features/editor/components/table/table-menu.tsx
@@ -18,7 +18,7 @@ import {
   IconTrashX,
 } from "@tabler/icons-react";
 import { BubbleMenu } from "@tiptap/react/menus";
-import { isCellSelection, isTextSelected } from "@docmost/editor-ext";
+import { isCellSelection, isEditorReady, isTextSelected } from "@docmost/editor-ext";
 import { useTranslation } from "react-i18next";
 import classes from "../common/toolbar-menu.module.css";
 
@@ -38,6 +38,7 @@ export const TableMenu = React.memo(
     );
 
     const getReferencedVirtualElement = useCallback(() => {
+      if (!isEditorReady(editor)) return;
       const { selection } = editor.state;
       const predicate = (node: PMNode) => node.type.name === "table";
       const parent = findParentNode(predicate)(selection);
diff --git a/apps/client/src/features/editor/components/video/video-menu.tsx b/apps/client/src/features/editor/components/video/video-menu.tsx
index 3f232625f..429e02f87 100644
--- a/apps/client/src/features/editor/components/video/video-menu.tsx
+++ b/apps/client/src/features/editor/components/video/video-menu.tsx
@@ -2,6 +2,7 @@ import { BubbleMenu as BaseBubbleMenu } from "@tiptap/react/menus";
 import { findParentNode, posToDOMRect, useEditorState } from "@tiptap/react";
 import { useCallback } from "react";
 import { Node as PMNode } from "@tiptap/pm/model";
+import { isEditorReady } from "@docmost/editor-ext";
 import {
   EditorMenuProps,
   ShouldShowProps,
@@ -53,7 +54,7 @@ export function VideoMenu({ editor }: EditorMenuProps) {
   );
 
   const getReferencedVirtualElement = useCallback(() => {
-    if (!editor) return;
+    if (!isEditorReady(editor)) return;
     const { selection } = editor.state;
     const predicate = (node: PMNode) => node.type.name === "video";
     const parent = findParentNode(predicate)(selection);
diff --git a/packages/editor-ext/src/lib/utils.ts b/packages/editor-ext/src/lib/utils.ts
index 3bfd01778..8d03577c7 100644
--- a/packages/editor-ext/src/lib/utils.ts
+++ b/packages/editor-ext/src/lib/utils.ts
@@ -338,6 +338,15 @@ export const isRowGripSelected = ({
   return !!gripRow;
 };
 
+// TipTap's `editor.view` proxy throws if accessed before mount or after destroy.
+// Guard floating-menu callbacks (getReferencedVirtualElement, shouldShow) with
+// this before touching `editor.view.nodeDOM(...)`.
+export function isEditorReady(
+  editor: Editor | null | undefined,
+): editor is Editor {
+  return !!editor && editor.isInitialized;
+}
+
 export function isTextSelected(editor: Editor) {
   const {
     state: {