zuul: undo disabling latest firefox test

diff --git a/bin/zuul-es6.yml b/bin/zuul-es6.yml
index a4c02dffae1a68b1d927233785cc4a0c7f5ab949..8054ad652d90222221e06c8b99e3e60554c0fde5 100644 (file)
--- a/bin/zuul-es6.yml
+++ b/bin/zuul-es6.yml
@@ -3,5 +3,4 @@ browsers:
   - name: chrome
     version: '-1..latest'
   - name: firefox
-    version: 55, 56
-    # version: '-1..latest'
+    version: '-1..latest'