diff --git a/installSystem.sh b/installSystem.sh
index c86ce55..d2d1625 100644
--- a/installSystem.sh
+++ b/installSystem.sh
@@ -14,6 +14,7 @@ groups | grep -q sudo || return
 
 # install zen browser 
 #wget https://github.com/zen-browser/desktop/releases/latest/download/zen-x86_64.AppImage -O ~/.local/bin/firefox-zen && chmod +x ~/.local/bin/firefox-zen && rm ~/.local/bin/firefox && mv  ~/.local/bin/firefox-zen ~/.local/bin/firefox
+rm ~/.local/bin/firefox
 
 # sudo usermod -aG sudo $user # pour passer sudoers, puis reboot
 sudo apt update