diff --git a/crates/vt_bin/tests/e2e_snapshots/fixtures/vitest_browser_cache/snapshots/vitest_browser_caches_inputs_and_restores_outputs.md b/crates/vt_bin/tests/e2e_snapshots/fixtures/vitest_browser_cache/snapshots/vitest_browser_caches_inputs_and_restores_outputs.md
index 65977124b..2381aad2d 100644
--- a/crates/vt_bin/tests/e2e_snapshots/fixtures/vitest_browser_cache/snapshots/vitest_browser_caches_inputs_and_restores_outputs.md
+++ b/crates/vt_bin/tests/e2e_snapshots/fixtures/vitest_browser_cache/snapshots/vitest_browser_caches_inputs_and_restores_outputs.md
@@ -7,7 +7,7 @@ Vitest browser mode runs in headless Chromium with explicit automatic input and
 first browser run: cache miss writes dist/result.json
 
 ```
-$ vitest run
+$ VITEST_BROWSER_DEBUG=false vitest run
 
  RUN  v<version> <workspace>
 
@@ -35,7 +35,7 @@ remove the generated output so restoration is observable
 unchanged inputs: cache hit restores dist/result.json
 
 ```
-$ vitest run ◉ cache hit, replaying
+$ VITEST_BROWSER_DEBUG=false vitest run ◉ cache hit, replaying
 
  RUN  v<version> <workspace>
 
@@ -66,7 +66,7 @@ modify a module loaded by the browser
 automatic input changed: cache miss reruns the browser test
 
 ```
-$ vitest run ○ cache miss: 'src/greeting.js' modified, executing
+$ VITEST_BROWSER_DEBUG=false vitest run ○ cache miss: 'src/greeting.js' modified, executing
 
  RUN  v<version> <workspace>
 
diff --git a/crates/vt_bin/tests/e2e_snapshots/fixtures/vitest_browser_cache/vite-task.json b/crates/vt_bin/tests/e2e_snapshots/fixtures/vitest_browser_cache/vite-task.json
index c10af7495..bb5ee2400 100644
--- a/crates/vt_bin/tests/e2e_snapshots/fixtures/vitest_browser_cache/vite-task.json
+++ b/crates/vt_bin/tests/e2e_snapshots/fixtures/vitest_browser_cache/vite-task.json
@@ -1,7 +1,9 @@
 {
   "tasks": {
     "test": {
-      "command": "vitest run",
+      // "false" silences the browser server's Vite logger, which otherwise prints
+      // timing-dependent "[optimizer] ..." messages on slow machines.
+      "command": "VITEST_BROWSER_DEBUG=false vitest run",
       "cache": {
         "input": [{ "auto": true }],
         // TODO: Add @voidzero-dev/vite-task-client and have Vitest report this path as ignored.