diff --git a/src/components/PulseView.test.tsx b/src/components/PulseView.test.tsx
index a8af8cd2..ac6daf42 100644
--- a/src/components/PulseView.test.tsx
+++ b/src/components/PulseView.test.tsx
@@ -3,6 +3,7 @@ import { render, screen, fireEvent, waitFor } from '@testing-library/react'
 import { PulseView } from './PulseView'
 import type { PulseCommit } from '../types'
 
+const openExternalUrl = vi.fn()
 const mockCommits: PulseCommit[] = [
   {
     hash: 'abc123def456',
@@ -45,6 +46,9 @@ vi.mock('../mock-tauri', () => ({
 vi.mock('../hooks/useDragRegion', () => ({
   useDragRegion: () => ({ onMouseDown: dragRegionMouseDown }),
 }))
+vi.mock('../utils/url', () => ({
+  openExternalUrl: (...args: unknown[]) => openExternalUrl(...args),
+}))
 
 describe('PulseView', () => {
   beforeEach(() => {
@@ -109,6 +113,17 @@ describe('PulseView', () => {
     expect(nonLink.tagName).toBe('SPAN')
   })
 
+  it('opens commit links through the shared external URL opener', async () => {
+    mockInvokeFn.mockResolvedValue(mockCommits)
+
+    render(<PulseView vaultPath="/test/vault" />)
+
+    const link = await screen.findByText('abc123d')
+    fireEvent.click(link)
+
+    expect(openExternalUrl).toHaveBeenCalledWith('https://github.com/owner/repo/commit/abc123def456')
+  })
+
   it('renders file list with correct titles when expanded', async () => {
     mockInvokeFn.mockResolvedValue(mockCommits)
 
diff --git a/src/components/PulseView.tsx b/src/components/PulseView.tsx
index b40daafc..88c4be22 100644
--- a/src/components/PulseView.tsx
+++ b/src/components/PulseView.tsx
@@ -5,6 +5,7 @@ import { isTauri, mockInvoke } from '../mock-tauri'
 import { useDragRegion } from '../hooks/useDragRegion'
 import type { PulseCommit, PulseFile } from '../types'
 import { relativeDate } from '../utils/noteListHelpers'
+import { openExternalUrl } from '../utils/url'
 import { getLocaleDateLocale, translate, type AppLocale } from '../lib/i18n'
 import { GitRepositorySelect } from './GitRepositorySelect'
 import type { GitRepositoryOption } from '../utils/gitRepositories'
@@ -147,6 +148,7 @@ function CommitCard({
   const [expanded, setExpanded] = useState(false)
   const Chevron = expanded ? CaretDown : CaretRight
   const toggleExpanded = useCallback(() => setExpanded((value) => !value), [])
+  const commitUrl = commit.githubUrl
 
   return (
     <div className="border-b border-border px-4 py-2">
@@ -174,19 +176,15 @@ function CommitCard({
           </div>
           <div className="flex items-center" style={{ gap: 8 }}>
             <span className="text-[11px] text-muted-foreground">{relativeDate(commit.date)}</span>
-            {commit.githubUrl ? (
+            {commitUrl ? (
               <a
                 className="flex items-center text-[11px] font-mono text-primary no-underline hover:underline"
                 style={{ gap: 3 }}
-                href={commit.githubUrl}
+                href={commitUrl}
                 onClick={(e) => {
                   e.preventDefault()
                   e.stopPropagation()
-                  if (isTauri()) {
-                    import('@tauri-apps/plugin-opener').then((mod) => mod.openUrl(commit.githubUrl!))
-                  } else {
-                    window.open(commit.githubUrl!, '_blank')
-                  }
+                  void openExternalUrl(commitUrl)
                 }}
                 title={translate(locale, 'pulse.openOnGitHub')}
               >
diff --git a/src/utils/url.test.ts b/src/utils/url.test.ts
index 44f34a2d..2774c563 100644
--- a/src/utils/url.test.ts
+++ b/src/utils/url.test.ts
@@ -1,6 +1,6 @@
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import { invoke } from '@tauri-apps/api/core'
-import { revealItemInDir } from '@tauri-apps/plugin-opener'
+import { openUrl, revealItemInDir } from '@tauri-apps/plugin-opener'
 import {
   copyLocalPath,
   isUrlValue,
@@ -56,6 +56,23 @@ describe('openExternalUrl', () => {
 
     expect(open).not.toHaveBeenCalled()
   })
+
+  it('treats Windows user-canceled opener dialogs as a benign no-op', async () => {
+    vi.stubGlobal('isTauri', true)
+    vi.mocked(openUrl).mockRejectedValueOnce(new Error('The operation was canceled by the user. (os error 1223)'))
+
+    await expect(openExternalUrl('https://example.com')).resolves.toBeUndefined()
+
+    expect(openUrl).toHaveBeenCalledWith('https://example.com')
+  })
+
+  it('keeps real native opener failures visible to callers', async () => {
+    vi.stubGlobal('isTauri', true)
+    const failure = new Error('failed to open default browser')
+    vi.mocked(openUrl).mockRejectedValueOnce(failure)
+
+    await expect(openExternalUrl('https://example.com')).rejects.toThrow(failure)
+  })
 })
 
 describe('local file actions', () => {
diff --git a/src/utils/url.ts b/src/utils/url.ts
index 8c667276..1cfdf899 100644
--- a/src/utils/url.ts
+++ b/src/utils/url.ts
@@ -1,6 +1,9 @@
 import { isTauri } from '../mock-tauri'
 
-function parseHttpUrl(candidate: string): URL | null {
+type ExternalUrlCandidate = string
+type AbsoluteFilePath = string
+
+function parseHttpUrl(candidate: ExternalUrlCandidate): URL | null {
   try {
     const parsedUrl = new URL(candidate)
     return parsedUrl.protocol === 'http:' || parsedUrl.protocol === 'https:' ? parsedUrl : null
@@ -14,12 +17,28 @@ function hasBareDomainHost(parsedUrl: URL): boolean {
   return dotIndex > 0 && dotIndex <= parsedUrl.hostname.length - 3
 }
 
-function startsWithHttpProtocol(url: string): boolean {
+function startsWithHttpProtocol(url: ExternalUrlCandidate): boolean {
   const lowerUrl = url.toLowerCase()
   return lowerUrl.startsWith('http://') || lowerUrl.startsWith('https://')
 }
 
-export function normalizeExternalUrl(value: string): string | null {
+function getErrorMessage(error: unknown): string {
+  if (error instanceof Error) return error.message
+  if (typeof error === 'string') return error
+  if (!error || typeof error !== 'object') return ''
+
+  const message = Reflect.get(error, 'message')
+  return typeof message === 'string' ? message : ''
+}
+
+function isExternalOpenCanceledByUser(error: unknown): boolean {
+  const message = getErrorMessage(error).toLowerCase()
+  return message.includes('os error 1223') ||
+    message.includes('operation was canceled by the user') ||
+    message.includes('operation was cancelled by the user')
+}
+
+export function normalizeExternalUrl(value: ExternalUrlCandidate): string | null {
   const trimmed = value.trim()
   if (!trimmed) return null
 
@@ -36,11 +55,11 @@ export function normalizeExternalUrl(value: string): string | null {
   return bareDomainCandidate
 }
 
-export function isUrlValue(value: string): boolean {
+export function isUrlValue(value: ExternalUrlCandidate): boolean {
   return normalizeExternalUrl(value) !== null
 }
 
-export function normalizeUrl(url: string): string {
+export function normalizeUrl(url: ExternalUrlCandidate): string {
   const normalized = normalizeExternalUrl(url)
   if (normalized) return normalized
   if (startsWithHttpProtocol(url)) return url
@@ -48,20 +67,25 @@ export function normalizeUrl(url: string): string {
 }
 
 /** Open a URL in the system browser. Uses Tauri opener plugin in native mode, window.open in browser. */
-export async function openExternalUrl(url: string): Promise<void> {
+export async function openExternalUrl(url: ExternalUrlCandidate): Promise<void> {
   const normalized = normalizeExternalUrl(url)
   if (!normalized) return
 
   if (isTauri()) {
     const { openUrl } = await import('@tauri-apps/plugin-opener')
-    await openUrl(normalized)
+    try {
+      await openUrl(normalized)
+    } catch (error) {
+      if (isExternalOpenCanceledByUser(error)) return
+      throw error
+    }
   } else {
     window.open(normalized, '_blank')
   }
 }
 
 /** Open a local file path with the system default app (e.g. TextEdit for .json). */
-export async function openLocalFile(absolutePath: string, vaultPath?: string): Promise<void> {
+export async function openLocalFile(absolutePath: AbsoluteFilePath, vaultPath?: AbsoluteFilePath): Promise<void> {
   if (isTauri()) {
     const { invoke } = await import('@tauri-apps/api/core')
     const args: { path: string; vaultPath?: string } = { path: absolutePath }
@@ -71,7 +95,7 @@ export async function openLocalFile(absolutePath: string, vaultPath?: string): P
 }
 
 /** Reveal a local file or folder in the system file manager. */
-export async function revealLocalPath(absolutePath: string): Promise<void> {
+export async function revealLocalPath(absolutePath: AbsoluteFilePath): Promise<void> {
   if (isTauri()) {
     const { revealItemInDir } = await import('@tauri-apps/plugin-opener')
     await revealItemInDir(absolutePath)
@@ -79,7 +103,7 @@ export async function revealLocalPath(absolutePath: string): Promise<void> {
 }
 
 /** Copy a local file or folder path to the system clipboard. */
-export async function copyLocalPath(absolutePath: string): Promise<void> {
+export async function copyLocalPath(absolutePath: AbsoluteFilePath): Promise<void> {
   if (!navigator.clipboard?.writeText) {
     throw new Error('Clipboard API is unavailable')
   }