Changed firefox addon version

tsv2013 · tsv2013 · commit fb11dbff321a · 2017-12-21T13:44:01.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -9,7 +9,7 @@ env:
 dist: trusty
 sudo: required
 addons:
-  firefox: stable
+  firefox: latest
   chrome: stable
 
 before_script:
