diff --git a/karma.conf.js b/karma.conf.js
index 7331331..5e69f9e 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -24,7 +24,7 @@ module.exports = function (config) {
     port: 9876,
     colors: true,
     logLevel: config.LOG_INFO,
-    browsers: ['Firefox'],
+    browsers: ['FirefoxHeadless'],
 
     singleRun: true,