diff --git a/.travis.yml b/.travis.yml
index 1b112e5c045..15db063abbf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,6 +27,7 @@ before_script:
 dist: trusty
 sudo: required
 addons:
+  firefox: "66.0"
   apt:
     sources:
       - google-chrome
diff --git a/packages/auth/buildtools/run_tests.sh b/packages/auth/buildtools/run_tests.sh
index 1172201281a..2661ae73320 100755
--- a/packages/auth/buildtools/run_tests.sh
+++ b/packages/auth/buildtools/run_tests.sh
@@ -62,6 +62,10 @@ function evalModule {
   do
     if [ -f "$basedir/$1" ]; then
       eval "$basedir/$1 ${@:2}"
+      ret=$?
+      if [ $ret -ne 0 ]; then
+        exit $ret
+      fi    
       break
     fi
   done