diff --git a/ubuntu/firefox-replace-snap.sh b/ubuntu/firefox-replace-snap.sh
index 9d38efe..b7a4749 100644
--- a/ubuntu/firefox-replace-snap.sh
+++ b/ubuntu/firefox-replace-snap.sh
@@ -1,6 +1,6 @@
 sudo snap remove firefox
-sudo apt remove firefox
-sudo add-apt-repository ppa:mozillateam/ppa
+sudo apt remove firefox -y
+sudo add-apt-repository ppa:mozillateam/ppa -y
 
 # Set priority
 echo "Package: firefox*
@@ -9,7 +9,7 @@ Pin-Priority: 1001
 
 Package: firefox*
 Pin: release o=Ubuntu
-Pin-Priority: -1" >>/etc/apt/preferences.d/mozillateamppa
+Pin-Priority: -1" | sudo tee/etc/apt/preferences.d/mozillateamppa >/dev/null
 
 sudo apt update
 sudo apt install firefox -y