diff --git a/debian-64/build.sh b/debian-64/build.sh
index 6084d13d6..125078b62 100755
--- a/debian-64/build.sh
+++ b/debian-64/build.sh
@@ -85,8 +85,8 @@ dconf-editor
 evince
 f2fs-tools
 ffmpegthumbnailer
-firefox-esr
-firefox-esr-l10n-all
+#firefox-esr
+#firefox-esr-l10n-all
 fonts-cantarell 
 fonts-liberation
 gdebi
@@ -97,7 +97,6 @@ gnome-calculator
 gnome-chess
 gnome-disk-utility
 gnome-mahjongg
-gnome-packagekit
 gnome-software
 gnome-software-plugin-flatpak
 gnome-software-plugin-snap
diff --git a/hooks/normal/0910-install-firefox.hook.chroot b/hooks/normal/0910-install-firefox.hook.chroot
new file mode 100755
index 000000000..ad1160a45
--- /dev/null
+++ b/hooks/normal/0910-install-firefox.hook.chroot
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+################################################################################
+# install-firefox-official.sh -- Revision: 1.0 by Manuel Rosa (manuelsilvarosa@gmail.com)
+# (GNU/General Public License version 3.0)
+# This script installs Firefox on Debian using the official repository.
+################################################################################
+
+# Script functions
+function add_mozilla_repository() {
+  echo "deb http://mirrors.mozilla.org/firefox/ppa/stable focal main" | sudo tee /etc/apt/sources.list.d/firefox-ppa.list
+}
+
+function import_mozilla_gpg_key() {
+  sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 9577B98D
+}
+
+function update_apt_cache() {
+  sudo apt-get update
+}
+
+function install_firefox() {
+  sudo apt-get install firefox
+}
+
+function main() {
+  add_mozilla_repository
+  import_mozilla_gpg_key
+  update_apt_cache
+  install_firefox
+}
+
+# Script execution
+main
+
+echo "Firefox has been installed successfully."