diff --git a/javascript/firefox-driver/webdriver.json b/javascript/firefox-driver/webdriver.json
index 1ebaf1d63c4c9..de0e37cf91ca1 100644
--- a/javascript/firefox-driver/webdriver.json
+++ b/javascript/firefox-driver/webdriver.json
@@ -47,6 +47,7 @@
     "browser.dom.window.dump.enabled": true,
     "browser.startup.page": 0,
     "browser.startup.homepage": "about:blank",
+    "dom.max_chrome_script_run_time": "30",
     "dom.max_script_run_time": 30,
     "dom.report_all_js_exceptions": true,
     "javascript.options.showInConsole": true,