diff --git a/.travis.yml b/.travis.yml
index 4b7a2161..10447bf6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ node_js:
 dist: trusty   # needed for chrome headless
 sudo: required # needed for chrome headless
 addons:
+  firefox: latest
   chrome: stable
   postgresql: "10"
   apt:
@@ -69,4 +70,4 @@ cache:
   directories:
   - $HOME/.npm
   - $HOME/.rvm
-  - $HOME/.bundle
\ No newline at end of file
+  - $HOME/.bundle