diff --git a/Dockerfile b/Dockerfile
index 7854132aa920f058ff2a2333e84f1dba5e5857d6..5a1195f4b4d5384f9383f98a12e0fb0dd9660b21 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,7 +13,6 @@ USER root
 RUN apt-get update && \
   apt-get install -y --no-install-recommends \
   apt-utils \
-  firefox
   cd /home/work/hslu-deep-learning/notebooks/Block_5/Seleniumtest \
   wget https://github.com/mozilla/geckodriver/releases/download/v0.24.0/geckodriver-v0.24.0-linux64.tar.gz \
   tar -xvzf geckodriver* \