diff --git a/.circleci/config.yml b/.circleci/config.yml
index 60bab501f178..091bcf04a908 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -80,6 +80,7 @@ jobs:
       - TEST_DEPENDENCY=firefox
       - EMSCRIPTEN_BROWSER=firefox -headless -profile tmp-firefox-profile/
       - EM_LACKS_HARDWARE_ACCESS=1
+      - EM_TESTRUNNER_DETECT_TEMPFILE_LEAKS=0
   test-ab:
     <<: *test-defaults
     environment: