use firefox 53

fieg · fieg · commit 4f73208544e1 · 2017-06-22T23:00:23.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,7 @@
 sudo: false
 
 addons:
-  firefox: 53
+  firefox: 53.0
 
 before_script:
   - npm install -g bower
