mozilla · dschom · Aug 12, 2026 · Aug 12, 2026
@@ -12,76 +12,110 @@ import { Subject } from './mocks';
 const VARIANTS: Array<{
   reason: PairingInterruptionReason;
   heading: string;
+  descriptionFtlId: string;
   description: string;
 }> = [
   {
     reason: 'timeout',
     heading: 'Looks like we timed out',
+    descriptionFtlId: 'pair2-supplicant-timeout-and-cancel-timeout-description',
     description:
       'To connect your mobile device and sync your Firefox data, visit firefox.com/pair on your computer.',
   },
   {
     reason: 'canceled',
     heading: 'Canceled',
+    descriptionFtlId:
+      'pair2-supplicant-timeout-and-cancel-canceled-description',
     description:
-      'To connect a device anytime, visit <b>firefox.com/pair</b> on your computer.',
+      'To connect a device anytime, visit firefox.com/pair on your computer.',
   },
 ];
 
+const getDescription = (ftlId: string) =>
+  screen.getAllByTestId('ftlmsg-mock').find((el) => el.id === ftlId)!;
+
 describe('Pair2/Supplicant/TimeoutAndCancel page', () => {
-  describe.each(VARIANTS)('$reason', ({ reason, heading, description }) => {
-    // Guards against drift between the fallback text in the component and the
-    // actual Fluent bundle, including a rename of either variant's ids.
-    it.skip('renders every message with text matching the Fluent bundle', async () => {
-      const bundle: FluentBundle = await getFtlBundle('settings');
-      renderWithLocalizationProvider(<Subject {...{ reason }} />);
-
-      const messages = screen
-        .getAllByTestId('ftlmsg-mock')
-        // The jest SVG stub renders the file name as the element's text, so
-        // image messages can never match. Covered by
-        // components/images/index.test.tsx.
-        .filter((el) => !el.textContent?.endsWith('.svg'));
-
-      expect(messages.length).toBeGreaterThan(0);
-      messages.forEach((el) => testL10n(el, bundle));
-    });
-
-    it('renders the heading and description for this state', () => {
-      renderWithLocalizationProvider(<Subject {...{ reason }} />);
-
-      expect(screen.getByRole('heading', { level: 1 })).toHaveTextContent(
-        heading
-      );
-      screen.getByText(description);
-    });
-
-    it('exposes the brand lockup and illustration to assistive technology', () => {
-      renderWithLocalizationProvider(<Subject {...{ reason }} />);
-
-      expect(
-        screen
-          .getAllByRole('img')
-          .map(
-            (img) => img.getAttribute('alt') ?? img.getAttribute('aria-label')
-          )
-      ).toEqual([
-        // AppLayout's page header, then the two images this card renders.
-        'Mozilla logo',
-        'Firefox logo',
-      ]);
-    });
-
-    // Both states are dead ends by design — the user restarts from their
-    // computer. Fail loudly if an unwired action is ever added here.
-    it('renders no action', () => {
-      renderWithLocalizationProvider(<Subject {...{ reason }} />);
-
-      expect(screen.queryByRole('button')).not.toBeInTheDocument();
-      // AppLayout's Mozilla logo is the only link on the page.
-      expect(screen.getAllByRole('link')).toHaveLength(1);
-    });
-  });
+  describe.each(VARIANTS)(
+    '$reason',
+    ({ reason, heading, descriptionFtlId, description }) => {
+      // Guards against drift between the fallback text in the component and the
+      // actual Fluent bundle, including a rename of either variant's ids.
+      it('renders every message with text matching the Fluent bundle', async () => {
+        const bundle: FluentBundle = await getFtlBundle('settings');
+        renderWithLocalizationProvider(<Subject {...{ reason }} />);
+
+        const messages = screen
+          .getAllByTestId('ftlmsg-mock')
+          // The jest SVG stub renders the file name as the element's text, so
+          // image messages can never match. Covered by
+          // components/images/index.test.tsx.
+          .filter((el) => !el.textContent?.endsWith('.svg'))
+          // `testL10n` compares rendered text against the raw Fluent source, so
+          // the description's DOM overlay tag can never match it. It is checked
+          // tag-stripped below instead.
+          .filter((el) => el.id !== descriptionFtlId);
+
+        expect(messages.length).toBeGreaterThan(0);
+        messages.forEach((el) => testL10n(el, bundle));
+      });
+
+      it('keeps the description fallback text in step with the Fluent message', async () => {
+        const bundle: FluentBundle = await getFtlBundle('settings');
+        renderWithLocalizationProvider(<Subject {...{ reason }} />);
+
+        const message = bundle.getMessage(descriptionFtlId);
+        const source = bundle.formatPattern(message!.value!);
+
+        expect(getDescription(descriptionFtlId).textContent).toEqual(
+          source.replace(/<\/?b>/g, '')
+        );
+      });
+
+      it('renders the heading and description for this state', () => {
+        renderWithLocalizationProvider(<Subject {...{ reason }} />);
+
+        expect(screen.getByRole('heading', { level: 1 })).toHaveTextContent(
+          heading
+        );
+        expect(getDescription(descriptionFtlId)).toHaveTextContent(description);
+      });
+
+      // The URL is a placeable inside the sentence, not a fragment glued on, so
+      // the emphasis has to come from an element the message can wrap.
+      it('emphasises the pairing URL with an element rather than literal tags', () => {
+        renderWithLocalizationProvider(<Subject {...{ reason }} />);
+
+        expect(screen.getByText('firefox.com/pair').tagName).toEqual('B');
+      });
+
+      it('exposes the brand lockup and illustration to assistive technology', () => {
+        renderWithLocalizationProvider(<Subject {...{ reason }} />);
+
+        expect(
+          screen
+            .getAllByRole('img')
+            .map(
+              (img) => img.getAttribute('alt') ?? img.getAttribute('aria-label')
+            )
+        ).toEqual([
+          // AppLayout's page header, then the two images this card renders.
+          'Mozilla logo',
+          'Firefox logo',
+        ]);
+      });
+
+      // Both states are dead ends by design — the user restarts from their
+      // computer. Fail loudly if an unwired action is ever added here.
+      it('renders no action', () => {
+        renderWithLocalizationProvider(<Subject {...{ reason }} />);
+
+        expect(screen.queryByRole('button')).not.toBeInTheDocument();
+        // AppLayout's Mozilla logo is the only link on the page.
+        expect(screen.getAllByRole('link')).toHaveLength(1);
+      });
+    }
+  );
 
   it('shows different copy for each state', () => {
     const { unmount } = renderWithLocalizationProvider(

@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-import React from 'react';
+import React, { ReactElement } from 'react';
 import { FtlMsg } from 'fxa-react/lib/utils';
 import AppLayout from '../../../../components/AppLayout';
 import {
@@ -29,23 +29,36 @@ const COPY: Record<
     headingFtlId: string;
     heading: string;
     descriptionFtlId: string;
-    description: string;
+    /**
+     * Fallback markup rather than a string: both sentences emphasise the pairing
+     * URL through a `<b>` the Fluent message wraps, so the fallback has to carry
+     * a real element instead of the tags as text.
+     */
+    description: ReactElement;
   }
 > = {
   timeout: {
     headingFtlId: 'pair2-supplicant-timeout-and-cancel-timeout-heading',
     heading: 'Looks like we timed out',
     descriptionFtlId: 'pair2-supplicant-timeout-and-cancel-timeout-description',
-    description:
-      'To connect your mobile device and sync your Firefox data, visit <b>firefox.com/pair</b> on your computer.',
+    description: (
+      <>
+        To connect your mobile device and sync your Firefox data, visit{' '}
+        <b className="whitespace-nowrap">firefox.com/pair</b> on your computer.
+      </>
+    ),
   },
   canceled: {
     headingFtlId: 'pair2-supplicant-timeout-and-cancel-canceled-heading',
     heading: 'Canceled',
     descriptionFtlId:
       'pair2-supplicant-timeout-and-cancel-canceled-description',
-    description:
-      'To connect a device anytime, visit <b>firefox.com/pair</b> on your computer.',
+    description: (
+      <>
+        To connect a device anytime, visit{' '}
+        <b className="whitespace-nowrap">firefox.com/pair</b> on your computer.
+      </>
+    ),
   },
 };
 
@@ -73,7 +86,10 @@ const TimeoutAndCancel = ({ reason }: TimeoutAndCancelProps) => {
         <FtlMsg id={headingFtlId}>
           <h1 className="card-header mt-6">{heading}</h1>
         </FtlMsg>
-        <FtlMsg id={descriptionFtlId}>
+        <FtlMsg
+          id={descriptionFtlId}
+          elems={{ b: <b className="whitespace-nowrap" /> }}
+        >
           <p className="mt-1 text-base">{description}</p>
         </FtlMsg>
       </div>