diff --git a/releng/org.eclipse.tm.releng/testing.properties b/releng/org.eclipse.tm.releng/testing.properties
index ac52b836c1a..dd3fcf95961 100644
--- a/releng/org.eclipse.tm.releng/testing.properties
+++ b/releng/org.eclipse.tm.releng/testing.properties
@@ -15,7 +15,7 @@ JAVA50_HOME=${JAVA_HOME}
 JAVA60_HOME=${JAVA_HOME}
 JAVADOC_HOME=${JAVA_HOME}/bin
 
-extraVMargs=-ea -Dorg.eclipse.swt.browser.XULRunnerPath=/shared/common/mozilla-xulrunner181-1.8.1.4-30.ppc
+#extraVMargs=-ea -Dorg.eclipse.swt.browser.XULRunnerPath=/shared/common/mozilla-xulrunner181-1.8.1.4-30.ppc
 #extraVMargs=-Dorg.eclipse.swt.browser.XULRunnerPath=/dev/null
 #name of runtime to install and test
 #runtime=${zipPrefix}-ALL${incubation}-${buildAlias}.zip