diff --git a/scripts/collect-i18n-general.ts b/scripts/collect-i18n-general.ts
index 1bbcb2060..5165e89be 100644
--- a/scripts/collect-i18n-general.ts
+++ b/scripts/collect-i18n-general.ts
@@ -1,5 +1,8 @@
 import * as fs from 'fs'
 
+// Import Vite define shim to make __DISTRIBUTION__ and other define variables available
+import './vite-define-shim'
+
 import { DESKTOP_DIALOGS } from '../apps/desktop-ui/src/constants/desktopDialogs'
 import { comfyPageFixture as test } from '../browser_tests/fixtures/ComfyPage'
 import {
diff --git a/scripts/vite-define-shim.ts b/scripts/vite-define-shim.ts
new file mode 100644
index 000000000..e12b126f3
--- /dev/null
+++ b/scripts/vite-define-shim.ts
@@ -0,0 +1,46 @@
+/**
+ * Shim for Vite define variables to make them available during Playwright test execution
+ * This file should be imported before any code that uses Vite define variables
+ */
+
+// Define global constants that Vite would normally replace at build time
+declare global {
+  const __COMFYUI_FRONTEND_VERSION__: string
+  const __SENTRY_ENABLED__: boolean
+  const __SENTRY_DSN__: string
+  const __ALGOLIA_APP_ID__: string
+  const __ALGOLIA_API_KEY__: string
+  const __USE_PROD_CONFIG__: boolean
+  const __DISTRIBUTION__: 'desktop' | 'localhost' | 'cloud'
+}
+
+type GlobalWithDefines = typeof globalThis & {
+  __COMFYUI_FRONTEND_VERSION__: string
+  __SENTRY_ENABLED__: boolean
+  __SENTRY_DSN__: string
+  __ALGOLIA_APP_ID__: string
+  __ALGOLIA_API_KEY__: string
+  __USE_PROD_CONFIG__: boolean
+  __DISTRIBUTION__: 'desktop' | 'localhost' | 'cloud'
+  window?: Record<string, unknown>
+}
+
+const globalWithDefines = globalThis as GlobalWithDefines
+
+// Set default values for Playwright test environment
+globalWithDefines.__COMFYUI_FRONTEND_VERSION__ =
+  process.env.npm_package_version || '1.0.0'
+globalWithDefines.__SENTRY_ENABLED__ = false
+globalWithDefines.__SENTRY_DSN__ = ''
+globalWithDefines.__ALGOLIA_APP_ID__ = ''
+globalWithDefines.__ALGOLIA_API_KEY__ = ''
+globalWithDefines.__USE_PROD_CONFIG__ = false
+globalWithDefines.__DISTRIBUTION__ = 'localhost'
+
+// Provide a minimal window shim for Node environment
+// This is needed for code that checks window existence during imports
+if (typeof window === 'undefined') {
+  globalWithDefines.window = {}
+}
+
+export {}
diff --git a/src/locales/en/main.json b/src/locales/en/main.json
index 1205517f4..1d2e14365 100644
--- a/src/locales/en/main.json
+++ b/src/locales/en/main.json
@@ -2254,4 +2254,4 @@
       "replacementInstruction": "Install these nodes to run this workflow, or replace them with installed alternatives. Missing nodes are highlighted in red on the canvas."
     }
   }
-}
+}
\ No newline at end of file