diff --git a/install/usr/share/swarmlab.io/sec/swarmlab-sec b/install/usr/share/swarmlab.io/sec/swarmlab-sec
index 3f909d5..1e6ba42 100755
--- a/install/usr/share/swarmlab.io/sec/swarmlab-sec
+++ b/install/usr/share/swarmlab.io/sec/swarmlab-sec
@@ -173,8 +173,7 @@ if [ -d "$Wdir/project" ]; then
 		&& echo "StrictHostKeyChecking no" > \${SSHDIR}/config \
 		&& cat \${SSHDIR}/*.pub >> \${SSHDIR}/authorized_keys \
 		&& chmod -R 600 \${SSHDIR}/* \
-	        && chown -R \${USER1}:\${USER1} \${SSHDIR} \
-                && apk --no-cache --update  add  firefox-esr
+	        && chown -R \${USER1}:\${USER1} \${SSHDIR} 
 
 		COPY .vimrc /home/docker
 
@@ -256,8 +255,7 @@ if [ "$Wdir" ==  "$HOME" ]; then
 		&& echo "StrictHostKeyChecking no" > \${SSHDIR}/config \
 		&& cat \${SSHDIR}/*.pub >> \${SSHDIR}/authorized_keys \
 		&& chmod -R 600 \${SSHDIR}/* \
-	        && chown -R \${USER1}:\${USER1} \${SSHDIR} \
-                && apk --no-cache --update  add  firefox-esr
+	        && chown -R \${USER1}:\${USER1} \${SSHDIR} 
 
 		COPY .vimrc /home/docker