diff --git a/test/run.sh b/test/run.sh
index 86e1e9879..c13caa84d 100644
--- a/test/run.sh
+++ b/test/run.sh
@@ -2,4 +2,4 @@
 
 node_modules/.bin/istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec && \
   cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && \
-  ./node_modules/karma/bin/karma start --single-run
+  ./node_modules/karma/bin/karma start --browsers Firefox --single-run