diff --git a/.changeset/fn-6987-mission-delete-confirm.md b/.changeset/fn-6987-mission-delete-confirm.md
new file mode 100644
index 0000000000..eda6f509d0
--- /dev/null
+++ b/.changeset/fn-6987-mission-delete-confirm.md
@@ -0,0 +1,7 @@
+---
+"@runfusion/fusion": patch
+---
+
+summary: Open Mission Manager mission-delete confirmations in the standard modal dialog.
+category: fix
+dev: Routes mission list and detail delete affordances through ConfirmDialogProvider with regression coverage.
diff --git a/packages/dashboard/app/components/MissionManager.tsx b/packages/dashboard/app/components/MissionManager.tsx
index 8da4285fdb..bdc2f78e86 100644
--- a/packages/dashboard/app/components/MissionManager.tsx
+++ b/packages/dashboard/app/components/MissionManager.tsx
@@ -28,6 +28,7 @@ import {
   FileText,
   RefreshCw,
 } from "lucide-react";
+import { useConfirm } from "../hooks/useConfirm";
 import type { ToastType } from "../hooks/useToast";
 import { useViewportMode } from "../hooks/useViewportMode";
 import { useNavigationHistoryContext } from "../hooks/useNavigationHistory";
@@ -614,6 +615,7 @@ function normalizeMissionHierarchy(mission: MissionWithHierarchy): MissionWithHi
 
 export function MissionManager({ isOpen, isInline = false, onClose, addToast, projectId, onSelectTask, availableTasks = [], resumeSessionId, targetMissionId, milestoneSliceResumeSessionId, onMilestoneSliceResumeFetchError, onNavigateToGoal }: MissionManagerProps) {
   const { t } = useTranslation("app");
+  const { confirm } = useConfirm();
   const isActive = isInline || isOpen;
   const cacheSuffix = projectId ?? "";
   const missionsCacheKey = `${SWR_CACHE_KEYS.MISSIONS_PREFIX}${cacheSuffix}`;
@@ -1712,11 +1714,28 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
         setSelectedMission(null);
       }
       await loadMissions();
-      setDeleteConfirmId(null);
     } catch (err) {
       addToast(getErrorMessage(err) || t("missions.deleteFailed", "Failed to delete mission"), "error");
     }
-  }, [addToast, loadMissions, selectedMission, projectId]);
+  }, [addToast, loadMissions, selectedMission, projectId, t]);
+
+  const requestDeleteMission = useCallback(async (missionId: string) => {
+    /*
+    FNXC:MissionManager 2026-06-24-00:00:
+    Mission deletes are destructive and must use the app-level modal confirmation from both list and detail delete affordances. Keeping this path out of the inline mission-confirm-panel prevents the prompt from landing in the sidebar footer, detail pane, or below mobile scroll content.
+    */
+    const confirmed = await confirm({
+      title: t("missions.deleteMission", "Delete mission"),
+      message: t("missions.deleteConfirm", "Delete this {{type}}? This cannot be undone.", { type: "mission" }),
+      confirmLabel: t("missions.deleteButton", "Delete"),
+      cancelLabel: t("missions.cancelButton", "Cancel"),
+      danger: true,
+    });
+    if (!confirmed) {
+      return;
+    }
+    await handleDeleteMission(missionId);
+  }, [confirm, handleDeleteMission, t]);
 
   // Milestone handlers
   const handleCreateMilestone = useCallback(() => {
@@ -2753,7 +2772,7 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
                       </button>
                       <button
                         className="mission-icon-btn mission-icon-btn--danger"
-                        onClick={() => setDeleteConfirmId({ type: "mission", id: selectedMission.id })}
+                        onClick={() => void requestDeleteMission(selectedMission.id)}
                         title={t("missions.deleteMission", "Delete mission")}
                         aria-label={t("missions.deleteMission", "Delete mission")}
                       >
@@ -4187,9 +4206,7 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
   };
 
   const shouldRenderSidebarDeleteConfirm =
-    deleteConfirmId != null &&
-    (deleteConfirmId.type === "interview_draft" ||
-      (deleteConfirmId.type === "mission" && selectedMission?.id !== deleteConfirmId.id));
+    deleteConfirmId != null && deleteConfirmId.type === "interview_draft";
 
   const handleInterviewModalClose = () => {
     dismissedResumeSessionIdRef.current = effectiveResumeSessionId ?? null;
@@ -4469,7 +4486,7 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
           </button>
           <button
             className="mission-icon-btn mission-icon-btn--danger"
-            onClick={() => setDeleteConfirmId({ type: "mission", id: m.id })}
+            onClick={() => void requestDeleteMission(m.id)}
             title={t("missions.deleteMission", "Delete mission")}
             aria-label={t("missions.deleteMission", "Delete mission")}
           >
@@ -4715,6 +4732,9 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
   };
 
   const renderDeleteConfirmPanel = () => {
+    if (deleteConfirmId?.type === "mission") {
+      return null;
+    }
     const isInterviewDraftDelete = deleteConfirmId?.type === "interview_draft";
 
     return (
@@ -4730,9 +4750,7 @@ export function MissionManager({ isOpen, isInline = false, onClose, addToast, pr
               className="mission-btn mission-btn--danger"
               onClick={async () => {
                 if (!deleteConfirmId) return;
-                if (deleteConfirmId.type === "mission") {
-                  await handleDeleteMission(deleteConfirmId.id);
-                } else if (deleteConfirmId.type === "milestone") {
+                if (deleteConfirmId.type === "milestone") {
                   await handleDeleteMilestone(deleteConfirmId.id);
                 } else if (deleteConfirmId.type === "slice") {
                   await handleDeleteSlice(deleteConfirmId.id);
diff --git a/packages/dashboard/app/components/__tests__/MissionManager.delete-confirm.test.tsx b/packages/dashboard/app/components/__tests__/MissionManager.delete-confirm.test.tsx
new file mode 100644
index 0000000000..580435aced
--- /dev/null
+++ b/packages/dashboard/app/components/__tests__/MissionManager.delete-confirm.test.tsx
@@ -0,0 +1,243 @@
+import { fireEvent, render, screen, waitFor, within } from "@testing-library/react";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { MissionManager } from "../MissionManager";
+import { ConfirmDialogProvider } from "../../hooks/useConfirm";
+
+const mockViewportMode = vi.fn<() => "mobile" | "desktop">();
+const mockFetchMissions = vi.fn();
+const mockFetchMission = vi.fn();
+const mockFetchMissionsHealth = vi.fn();
+const mockFetchMissionEvents = vi.fn();
+const mockFetchAssertions = vi.fn();
+const mockFetchMilestoneValidation = vi.fn();
+const mockFetchMilestoneValidationTelemetry = vi.fn();
+const mockFetchValidationLoopState = vi.fn();
+const mockFetchValidationRuns = vi.fn();
+const mockFetchAiSessions = vi.fn();
+const mockFetchAiSession = vi.fn();
+const mockFetchMissionInterviewDrafts = vi.fn();
+const mockDeleteMission = vi.fn();
+const mockSubscribeSse = vi.fn(() => vi.fn());
+
+vi.mock("../../hooks/useViewportMode", () => ({
+  MOBILE_MEDIA_QUERY: "(max-width: 768px), (max-height: 480px)",
+  getViewportMode: () => mockViewportMode(),
+  isMobileViewport: () => mockViewportMode() === "mobile",
+  useViewportMode: () => mockViewportMode(),
+}));
+
+vi.mock("../../hooks/useNavigationHistory", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("../../hooks/useNavigationHistory")>();
+  return {
+    ...actual,
+    useNavigationHistoryContext: () => ({ pushNav: vi.fn(), replaceCurrent: vi.fn() }),
+  };
+});
+
+vi.mock("../../sse-bus", () => ({
+  subscribeSse: (...args: unknown[]) => mockSubscribeSse(...args),
+}));
+
+vi.mock("../MissionInterviewModal", () => ({
+  MissionInterviewModal: () => null,
+}));
+
+vi.mock("../MilestoneSliceInterviewModal", () => ({
+  MilestoneSliceInterviewModal: () => null,
+}));
+
+vi.mock("../../api", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("../../api")>();
+  return {
+    ...actual,
+    fetchMissions: (...args: unknown[]) => mockFetchMissions(...args),
+    fetchMission: (...args: unknown[]) => mockFetchMission(...args),
+    fetchMissionsHealth: (...args: unknown[]) => mockFetchMissionsHealth(...args),
+    fetchMissionEvents: (...args: unknown[]) => mockFetchMissionEvents(...args),
+    fetchAssertions: (...args: unknown[]) => mockFetchAssertions(...args),
+    fetchMilestoneValidation: (...args: unknown[]) => mockFetchMilestoneValidation(...args),
+    fetchMilestoneValidationTelemetry: (...args: unknown[]) => mockFetchMilestoneValidationTelemetry(...args),
+    fetchValidationLoopState: (...args: unknown[]) => mockFetchValidationLoopState(...args),
+    fetchValidationRuns: (...args: unknown[]) => mockFetchValidationRuns(...args),
+    fetchAiSessions: (...args: unknown[]) => mockFetchAiSessions(...args),
+    fetchAiSession: (...args: unknown[]) => mockFetchAiSession(...args),
+    fetchMissionInterviewDrafts: (...args: unknown[]) => mockFetchMissionInterviewDrafts(...args),
+    deleteMission: (...args: unknown[]) => mockDeleteMission(...args),
+    fetchModels: vi.fn().mockResolvedValue({ models: [], favoriteProviders: [], favoriteModels: [] }),
+  };
+});
+
+const projectId = "project-1";
+
+const missions = [
+  {
+    id: "M-001",
+    title: "Build Auth System",
+    description: "Complete authentication flow",
+    status: "planning",
+    interviewState: "not_started",
+    milestones: [],
+    createdAt: "2026-01-01T00:00:00.000Z",
+    updatedAt: "2026-01-01T00:00:00.000Z",
+  },
+  {
+    id: "M-002",
+    title: "API Redesign",
+    description: "Redesign the REST API",
+    status: "active",
+    interviewState: "not_started",
+    milestones: [],
+    createdAt: "2026-01-02T00:00:00.000Z",
+    updatedAt: "2026-01-02T00:00:00.000Z",
+  },
+];
+
+const missionDetails = new Map([
+  [
+    "M-001",
+    {
+      id: "M-001",
+      title: "Build Auth System",
+      description: "Complete authentication flow",
+      status: "planning",
+      milestones: [],
+      createdAt: "2026-01-01T00:00:00.000Z",
+      updatedAt: "2026-01-01T00:00:00.000Z",
+    },
+  ],
+  [
+    "M-002",
+    {
+      id: "M-002",
+      title: "API Redesign",
+      description: "Redesign the REST API",
+      status: "active",
+      milestones: [],
+      createdAt: "2026-01-02T00:00:00.000Z",
+      updatedAt: "2026-01-02T00:00:00.000Z",
+    },
+  ],
+]);
+
+function setupMocks() {
+  mockFetchMissions.mockResolvedValue(missions);
+  mockFetchMission.mockImplementation(async (missionId: string) => missionDetails.get(missionId));
+  mockFetchMissionsHealth.mockResolvedValue({});
+  mockFetchMissionEvents.mockResolvedValue([]);
+  mockFetchAssertions.mockResolvedValue([]);
+  mockFetchMilestoneValidation.mockResolvedValue(null);
+  mockFetchMilestoneValidationTelemetry.mockResolvedValue(null);
+  mockFetchValidationLoopState.mockResolvedValue(null);
+  mockFetchValidationRuns.mockResolvedValue([]);
+  mockFetchAiSessions.mockResolvedValue([]);
+  mockFetchAiSession.mockResolvedValue(null);
+  mockFetchMissionInterviewDrafts.mockResolvedValue([]);
+  mockDeleteMission.mockResolvedValue(undefined);
+}
+
+function renderMissionManager(addToast = vi.fn()) {
+  const result = render(
+    <ConfirmDialogProvider>
+      <MissionManager isInline isOpen onClose={() => {}} addToast={addToast} projectId={projectId} />
+    </ConfirmDialogProvider>,
+  );
+  return { ...result, addToast };
+}
+
+async function findMissionListItem(title: string): Promise<HTMLElement> {
+  const titleNode = await screen.findByText(title);
+  const item = titleNode.closest(".mission-list__item");
+  expect(item).not.toBeNull();
+  return item as HTMLElement;
+}
+
+async function openListDeleteDialog(title: string, container: HTMLElement) {
+  const item = await findMissionListItem(title);
+  fireEvent.click(within(item).getByRole("button", { name: "Delete mission" }));
+  const dialog = await screen.findByRole("dialog", { name: "Delete mission" });
+  expect(dialog).toHaveTextContent("Delete this mission? This cannot be undone.");
+  expect(container.querySelector(".mission-confirm-panel")).toBeNull();
+  return dialog;
+}
+
+describe("MissionManager mission delete confirmation", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    localStorage.clear();
+    mockViewportMode.mockReturnValue("desktop");
+    setupMocks();
+  });
+
+  it("opens a modal for desktop list deletes and cancel leaves the mission untouched", async () => {
+    const { container } = renderMissionManager();
+
+    const dialog = await openListDeleteDialog("API Redesign", container);
+
+    fireEvent.click(within(dialog).getByRole("button", { name: "Cancel" }));
+
+    await waitFor(() => {
+      expect(screen.queryByRole("dialog", { name: "Delete mission" })).not.toBeInTheDocument();
+    });
+    expect(mockDeleteMission).not.toHaveBeenCalled();
+    expect(screen.getByText("API Redesign")).toBeInTheDocument();
+  });
+
+  it("confirms desktop selected-detail deletes through the modal and refreshes missions", async () => {
+    const addToast = vi.fn();
+    renderMissionManager(addToast);
+
+    await waitFor(() => {
+      expect(mockFetchMission).toHaveBeenCalledWith("M-001", projectId);
+    });
+    fireEvent.click(screen.getAllByRole("button", { name: "Delete mission" })[0]);
+    const dialog = await screen.findByRole("dialog", { name: "Delete mission" });
+    expect(document.querySelector(".mission-confirm-panel")).toBeNull();
+
+    fireEvent.click(within(dialog).getByRole("button", { name: "Delete" }));
+
+    await waitFor(() => {
+      expect(mockDeleteMission).toHaveBeenCalledWith("M-001", projectId);
+    });
+    expect(addToast).toHaveBeenCalledWith("Mission deleted", "success");
+    expect(mockFetchMissions).toHaveBeenCalledTimes(2);
+  });
+
+  it("confirms mobile stacked detail deletes through the modal", async () => {
+    mockViewportMode.mockReturnValue("mobile");
+    renderMissionManager();
+
+    const item = await findMissionListItem("Build Auth System");
+    fireEvent.click(item);
+    await waitFor(() => {
+      expect(mockFetchMission).toHaveBeenCalledWith("M-001", projectId);
+    });
+
+    await waitFor(() => {
+      expect(document.querySelector('button[title="Delete mission"]')).toBeInTheDocument();
+    });
+    fireEvent.click(document.querySelector('button[title="Delete mission"]') as HTMLButtonElement);
+    const dialog = await screen.findByRole("dialog", { name: "Delete mission" });
+    expect(document.querySelector(".mission-confirm-panel")).toBeNull();
+
+    fireEvent.click(within(dialog).getByRole("button", { name: "Delete" }));
+
+    await waitFor(() => {
+      expect(mockDeleteMission).toHaveBeenCalledWith("M-001", projectId);
+    });
+  });
+
+  it("keeps the mission visible and emits an error toast when modal-confirmed delete fails", async () => {
+    const addToast = vi.fn();
+    mockDeleteMission.mockRejectedValueOnce(new Error("delete failed upstream"));
+    const { container } = renderMissionManager(addToast);
+
+    const dialog = await openListDeleteDialog("API Redesign", container);
+    fireEvent.click(within(dialog).getByRole("button", { name: "Delete" }));
+
+    await waitFor(() => {
+      expect(mockDeleteMission).toHaveBeenCalledWith("M-002", projectId);
+    });
+    expect(screen.getByText("API Redesign")).toBeInTheDocument();
+    expect(addToast).toHaveBeenCalledWith("delete failed upstream", "error");
+  });
+});