diff --git a/set_firefox_config.sh b/set_firefox_config.sh
old mode 100644
new mode 100755
index e03f296..8579138
--- a/set_firefox_config.sh
+++ b/set_firefox_config.sh
@@ -1,9 +1,6 @@
 #!/bin/bash
 
-set -e
-
 # Script para buscar usuarios que non sexan de sistema
-# e configurarlles o firefox coas opciós de arkenfox
 
 # Repo coa configuración
 echo "Baixando configuración..."
@@ -11,12 +8,57 @@ rm -rf /tmp/user_js > /dev/null 2>&1
 git clone https://github.com/arkenfox/user.js.git /tmp/user_js
 echo ""
 
+# Asegurarse de que existe Firefox en apt e non en snap
+apt_firefox () {
+
+    # existe snap?
+    if snp=$(which snap); then
+        $snp list firefox
+        if [ $? -eq 0 ]; then
+	    $snp remove --purge firefox
+
+            # estamos en ubuntu, agregase repo de mozilla
+            add-apt-repository -y ppa:mozillateam/ppa
+
+            if [ ! -f /etc/apt/preferences.d/mozilla-firefox ]; then
+                echo '
+Package: *
+Pin: release o=LP-PPA-mozillateam
+Pin-Priority: 1001
+
+Package: firefox
+Pin: version 1:1snap*
+Pin-Priority: -1
+' | sudo tee /etc/apt/preferences.d/mozilla-firefox
+            fi
+	fi
+    fi
+
+    apt purge -y firefox
+    apt install -y firefox
+}
+
 # Configura Firefox
 set_firefox_config () {
     USER=$1
     HOME=$2
 
-    if DIRECTORIO=$(dirname $(find $HOME -name profiles.ini)) ; then
+    # Crea o perfil por defecto:
+    export DBUS_SESSION_BUS_ADDRESS="unix:path=$XDG_RUNTIME_DIR/bus"
+    sudo -i -u $USER firefox -headless -no-remote -CreateProfile default
+
+    # Busca directorio do perfil e aplica a config
+    DIRECTORIO=""
+    for ruta in $(find $HOME -name profiles.ini);
+    do
+        if [[ $ruta == *".mozilla/firefox/profiles.ini"* ]]; then
+            DIRECTORIO=$(dirname $ruta)
+        fi
+    done
+
+    echo $DIRECTORIO
+
+    if [ -d "$DIRECTORIO" ]; then
         # Buscando directorio do perfil
         if [[ $(grep '\[Profile[^0]\]' $DIRECTORIO/profiles.ini) ]]; then
             PROFPATH=$(grep -E '^\[Profile|^Path|^Default' $DIRECTORIO/profiles.ini | grep -1 '^Default=1' | grep '^Path' | cut -c6-)
@@ -38,6 +80,9 @@ set_firefox_config () {
 }
 
 # RUN
+
+apt_firefox
+
 uid_min=$(grep -E '^UID_MIN' /etc/login.defs | awk '{print $2}')
 uid_max=$(grep -E '^UID_MAX' /etc/login.defs | awk '{print $2}')
 
@@ -53,3 +98,7 @@ while read line; do
     fi
 done < /etc/passwd
 
+# Restaurar Firefox con snap
+# add-apt-repository -y -r ppa:mozillateam/ppa
+# rm -rf /etc/apt/preferences.d/mozilla-firefox
+# apt remove firefox && snap install firefox