diff --git a/ui/src/pages/channels/wizard-view.test.ts b/ui/src/pages/channels/wizard-view.test.ts
new file mode 100644
index 000000000000..2bf896ed0a9f
--- /dev/null
+++ b/ui/src/pages/channels/wizard-view.test.ts
@@ -0,0 +1,69 @@
+/* @vitest-environment jsdom */
+
+import { nothing, render } from "lit";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { i18n } from "../../i18n/index.ts";
+import { renderChannelWizard } from "./wizard-view.ts";
+
+describe("renderChannelWizard", () => {
+  beforeEach(async () => {
+    await i18n.setLocale("en");
+  });
+
+  afterEach(() => {
+    for (const container of document.body.querySelectorAll("div")) {
+      render(nothing, container);
+    }
+    document.body.replaceChildren();
+    vi.unstubAllGlobals();
+    delete (document as unknown as { execCommand?: unknown }).execCommand;
+  });
+
+  it("copies setup text through the plain-HTTP clipboard fallback", async () => {
+    vi.stubGlobal("navigator", {});
+    let copiedText: string | undefined;
+    const execCommand = vi.fn().mockImplementation(() => {
+      copiedText = document.querySelector<HTMLTextAreaElement>("textarea")?.value;
+      return true;
+    });
+    (document as unknown as { execCommand: typeof execCommand }).execCommand = execCommand;
+    const container = document.createElement("div");
+    document.body.append(container);
+    render(
+      renderChannelWizard({
+        wizard: {
+          phase: "step",
+          channel: null,
+          step: {
+            id: "copy-command",
+            type: "note",
+            message: "openclaw channels add",
+          },
+          stepIndex: 1,
+          busy: false,
+          validationError: null,
+        },
+        channelLabel: (channelId) => channelId,
+        multiselectValues: [],
+        onToggleMultiselect: vi.fn(),
+        onAnswer: vi.fn(),
+        onClose: vi.fn(),
+        whatsappQrDataUrl: null,
+        whatsappMessage: null,
+        whatsappConnected: null,
+        whatsappBusy: false,
+        onWhatsAppStart: vi.fn(),
+        onWhatsAppWait: vi.fn(),
+      }),
+      container,
+    );
+
+    const copy = container.querySelector<HTMLButtonElement>(".channels-wizard__links button");
+    expect(copy).not.toBeNull();
+    copy?.click();
+
+    await vi.waitFor(() => expect(execCommand).toHaveBeenCalledWith("copy"));
+    expect(copiedText).toBe("openclaw channels add");
+    expect(document.querySelector("textarea")).toBeNull();
+  });
+});
diff --git a/ui/src/pages/channels/wizard-view.ts b/ui/src/pages/channels/wizard-view.ts
index 3b460787dbea..ba40eb03feec 100644
--- a/ui/src/pages/channels/wizard-view.ts
+++ b/ui/src/pages/channels/wizard-view.ts
@@ -5,6 +5,7 @@ import "@awesome.me/webawesome/dist/components/radio-group/radio-group.js";
 import { html, nothing, type TemplateResult } from "lit";
 import { t } from "../../i18n/index.ts";
 import "../../components/modal-dialog.ts";
+import { copyToClipboard } from "../../lib/clipboard.ts";
 import { channelDocsUrl, channelHubMeta, renderChannelArt } from "./hub-meta.ts";
 import type {
   ChannelWizardState,
@@ -52,11 +53,7 @@ function renderNoteStep(step: ChannelWizardStep, props: ChannelWizardViewProps)
     ${message
       ? html`
           <div class="channels-wizard__links">
-            <button
-              type="button"
-              class="btn btn--sm"
-              @click=${() => void navigator.clipboard?.writeText(message)}
-            >
+            <button type="button" class="btn btn--sm" @click=${() => void copyToClipboard(message)}>
               ${t("channels.setup.copyText")}
             </button>
           </div>
diff --git a/ui/src/pages/model-setup/view.test.ts b/ui/src/pages/model-setup/view.test.ts
index a389b2ccc7c5..bc4a99dc26e4 100644
--- a/ui/src/pages/model-setup/view.test.ts
+++ b/ui/src/pages/model-setup/view.test.ts
@@ -139,6 +139,8 @@ describe("renderModelSetup", () => {
       render(nothing, container);
     }
     document.body.replaceChildren();
+    vi.unstubAllGlobals();
+    delete (document as unknown as { execCommand?: unknown }).execCommand;
   });
 
   it("renders candidate, unavailable, sign-in, and manual sections", () => {
@@ -336,6 +338,31 @@ describe("renderModelSetup", () => {
     expect(text(container)).toContain("Expires in 10 minutes");
   });
 
+  it("copies device codes through the plain-HTTP clipboard fallback", async () => {
+    vi.stubGlobal("navigator", {});
+    let copiedText: string | undefined;
+    const execCommand = vi.fn().mockImplementation(() => {
+      copiedText = document.querySelector<HTMLTextAreaElement>("textarea")?.value;
+      return true;
+    });
+    (document as unknown as { execCommand: typeof execCommand }).execCommand = execCommand;
+    const container = wizardStep({
+      id: "device",
+      type: "note",
+      deviceCode: { code: "ABCD-EFGH" },
+    });
+
+    const copy = Array.from(container.querySelectorAll<HTMLButtonElement>("button")).find(
+      (button) => button.textContent?.trim() === "Copy",
+    );
+    expect(copy).toBeDefined();
+    copy?.click();
+
+    await vi.waitFor(() => expect(execCommand).toHaveBeenCalledWith("copy"));
+    expect(copiedText).toBe("ABCD-EFGH");
+    expect(document.querySelector("textarea")).toBeNull();
+  });
+
   it("renders sensitive text, select, and confirm steps", () => {
     const sensitive = wizardStep(
       { id: "token", type: "text", sensitive: true, placeholder: "Paste token" },
diff --git a/ui/src/pages/model-setup/wizard-view.ts b/ui/src/pages/model-setup/wizard-view.ts
index bc948f2ca737..e94cf63a5915 100644
--- a/ui/src/pages/model-setup/wizard-view.ts
+++ b/ui/src/pages/model-setup/wizard-view.ts
@@ -1,6 +1,7 @@
 import { html, nothing, type TemplateResult } from "lit";
 import { t } from "../../i18n/index.ts";
 import "../../components/modal-dialog.ts";
+import { copyToClipboard } from "../../lib/clipboard.ts";
 import type { ModelSetupWizardState } from "./state.ts";
 
 type WizardViewProps = {
@@ -25,7 +26,7 @@ function renderDeviceCode(step: Extract<ModelSetupWizardState, { phase: "step" }
       <button
         type="button"
         class="btn btn--sm"
-        @click=${() => void navigator.clipboard?.writeText(step.deviceCode!.code)}
+        @click=${() => void copyToClipboard(step.deviceCode!.code)}
       >
         ${t("modelSetup.wizard.copy")}
       </button>