diff --git a/browser_patches/checkout_build_archive_upload.sh b/browser_patches/checkout_build_archive_upload.sh
index b7a6839dd43c6..a54bc605341ca 100755
--- a/browser_patches/checkout_build_archive_upload.sh
+++ b/browser_patches/checkout_build_archive_upload.sh
@@ -164,19 +164,14 @@ function generate_and_upload_browser_build {
     return 22
   fi
 
-  echo "-- running sanity test"
-  if ! ./$BROWSER_NAME/run_sanity_check.sh; then
-    return 23
-  fi
-
   echo "-- archiving to $ZIP_PATH"
   if ! ./$BROWSER_NAME/archive.sh $ZIP_PATH "$EXTRA_ARCHIVE_ARGS"; then
-    return 24
+    return 23
   fi
 
   echo "-- uploading"
   if ! ./upload.sh $BUILD_BLOB_PATH $ZIP_PATH; then
-    return 25
+    return 24
   fi
   return 0
 }
@@ -211,10 +206,8 @@ else
   elif (( RESULT_CODE == 22 )); then
     FAILED_STEP="./build.sh"
   elif (( RESULT_CODE == 23 )); then
-    FAILED_STEP="./run_sanity_check.sh"
-  elif (( RESULT_CODE == 24 )); then
     FAILED_STEP="./archive.sh"
-  elif (( RESULT_CODE == 25 )); then
+  elif (( RESULT_CODE == 24 )); then
     FAILED_STEP="./upload.sh"
   else
     FAILED_STEP="<unknown step>"
diff --git a/browser_patches/firefox/run_sanity_check.sh b/browser_patches/firefox/run_sanity_check.sh
deleted file mode 100755
index cce66c3ecd333..0000000000000
--- a/browser_patches/firefox/run_sanity_check.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/bash
-set -e
-set +x
-
-trap "cd $(pwd -P)" EXIT
-cd "$(dirname $0)"
-
-if [[ "$(uname)" == "Darwin" ]]; then
-  node ./sanity.js
-elif [[ "$(uname)" == "Linux" ]]; then
-  xvfb-run --auto-servernum node ./sanity.js
-elif [[ "$(uname)" == MINGW* ]]; then
-  node ./sanity.js
-else
-  echo "ERROR: cannot check sanity on this platform!" 1>&2
-  exit 1;
-fi
diff --git a/browser_patches/firefox/sanity.js b/browser_patches/firefox/sanity.js
deleted file mode 100644
index 4f8ad3c23fe2b..0000000000000
--- a/browser_patches/firefox/sanity.js
+++ /dev/null
@@ -1,28 +0,0 @@
-const {firefox} = require('../..');
-const os = require('os');
-const path = require('path');
-
-const executablePath = {
-  'darwin': path.join(__dirname, 'checkout', 'obj-build-playwright', 'dist', 'Nightly.app', 'Contents', 'MacOS', 'firefox'),
-  'linux': path.join(__dirname, 'checkout', 'obj-build-playwright', 'dist', 'bin', 'firefox'),
-  'win32': path.join(__dirname, 'checkout', 'obj-build-playwright', 'dist', 'bin', 'firefox.exe'),
-}[os.platform()];
-
-async function checkSanity(options) {
-  const browser = await firefox.launch({...options, executablePath});
-  const context = await browser.newContext();
-  const page = await context.newPage();
-  const result = await page.evaluate(() => 6 * 7);
-  await browser.close();
-  if (result !== 42)
-    throw new Error(`ERROR: computation failed!`);
-  console.log(`SUCCESS: ran firefox with options = ${JSON.stringify(options)}`);
-}
-
-Promise.all([
-  checkSanity({headless: true}),
-  checkSanity({headless: false}),
-]).catch(e => {
-  console.error(e);
-  process.exitCode = 1;
-});
diff --git a/browser_patches/webkit/run_sanity_check.sh b/browser_patches/webkit/run_sanity_check.sh
deleted file mode 100755
index 9a3ec11f7243d..0000000000000
--- a/browser_patches/webkit/run_sanity_check.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/bash
-set -e
-set +x
-
-trap "cd $(pwd -P)" EXIT
-cd "$(dirname $0)"
-
-if [[ "$(uname)" == "Darwin" ]]; then
-  node ./sanity.js
-elif [[ "$(uname)" == "Linux" ]]; then
-  xvfb-run --auto-servernum node ./sanity.js
-elif [[ "$(uname)" == MINGW* ]]; then
-  echo "Sanity check on windows is not supported"
-else
-  echo "ERROR: cannot check sanity on this platform!" 1>&2
-  exit 1;
-fi
diff --git a/browser_patches/webkit/sanity.js b/browser_patches/webkit/sanity.js
deleted file mode 100644
index 020573cf3d90e..0000000000000
--- a/browser_patches/webkit/sanity.js
+++ /dev/null
@@ -1,33 +0,0 @@
-const {firefox} = require('../..');
-const os = require('os');
-const path = require('path');
-
-const executablePath = {
-  'darwin': path.join(__dirname, 'pw_run.sh'),
-  'linux': path.join(__dirname, 'pw_run.sh'),
-  'win32': undefined,
-}[os.platform()];
-
-// TODO: verify build on windows.
-if (!executablePath)
-  return;
-
-async function checkSanity(options) {
-  const browser = await firefox.launch({...options, executablePath});
-  const context = await browser.newContext();
-  const page = await context.newPage();
-  const result = await page.evaluate(() => 7 * 8);
-  await browser.close();
-  if (result !== 56)
-    throw new Error(`ERROR: computation failed!`);
-  console.log(`SUCCESS: ran webkit with options = ${JSON.stringify(options)}`);
-}
-
-Promise.all([
-  checkSanity({headless: true}),
-  checkSanity({headless: false}),
-]).catch(e => {
-  console.error(e);
-  process.exitCode = 1;
-});
-