diff --git a/sources/assets/exegol/load_supported_setups.sh b/sources/assets/exegol/load_supported_setups.sh
index 6503e423c..a2e539947 100644
--- a/sources/assets/exegol/load_supported_setups.sh
+++ b/sources/assets/exegol/load_supported_setups.sh
@@ -1,15 +1,38 @@
 #!/bin/zsh
 
-# Expanding aliases. Bugfix #207
-EXEGOL_ALIASES="/opt/.exegol_aliases"
-if [[ -f "$EXEGOL_ALIASES" ]]; then
-  source "$EXEGOL_ALIASES"
-else
-  echo "Exiting, file $EXEGOL_ALIASES is missing"
-  exit 2
-fi
+# Root my-resources PATH
+MY_ROOT_PATH="/opt/my-resources"
+
+# Setup directory for user customization
+MY_SETUP_PATH="$MY_ROOT_PATH/setup"
+
+export RED='\033[1;31m'
+export BLUE='\033[1;34m'
+export GREEN='\033[1;32m'
+export NOCOLOR='\033[0m'
+
+### Echo functions
+
+function colorecho () {
+    echo -e "${BLUE}[EXEGOL] $*${NOCOLOR}"
+}
+
+function criticalecho () {
+    echo -e "${RED}[EXEGOL ERROR] $*${NOCOLOR}" 2>&1
+    exit 1
+}
+
+function criticalecho-noexit () {
+    echo -e "${RED}[EXEGOL ERROR] $*${NOCOLOR}" 2>&1
+}
 
 function init() {
+  colorecho "Initilization"
+  colorecho "Sourcing zshrc"
+  source "$HOME/.zshrc"
+  colorecho "Checking environment variables"
+  env
+  colorecho "Deploying /opt/my-resources"
   # Deploying the /opt/my-resources/ folder if not already there
   if [[ -d "$MY_ROOT_PATH" ]]; then
     # Setup basic structure
@@ -19,13 +42,13 @@ function init() {
     echo "Exiting, 'my-resources' is disabled"
     exit 1
   fi
-
+  colorecho "Copying README.md to /opt/my-resources"
   # Copying README.md to /opt/my-resources/ (first use)
   [[ -f "$MY_SETUP_PATH/README.md" ]] || cp --preserve=mode /.exegol/skel/README.md "$MY_SETUP_PATH/README.md"
 }
 
 function deploy_zsh() {
-  ##### ZSH deployment
+  colorecho "Deploying zsh"
   if [[ -d "$MY_SETUP_PATH/zsh" ]]; then
     # TODO remove fallback 'cp' command
     grep -vE "^(\s*|#.*)$" "$MY_SETUP_PATH/zsh/history" >> ~/.zsh_history || cp --preserve=mode /.exegol/skel/zsh/history "$MY_SETUP_PATH/zsh/history"
@@ -36,7 +59,7 @@ function deploy_zsh() {
 }
 
 function deploy_tmux() {
-  ##### TMUX deployment
+  colorecho "Deploying tmux"
   if [[ -d "$MY_SETUP_PATH/tmux" ]]; then
     # copy tmux/tmux.conf to ~/.tmux.conf
     [[ -f "$MY_SETUP_PATH/tmux/tmux.conf" ]] && cp "$MY_SETUP_PATH/tmux/tmux.conf" ~/.tmux.conf
@@ -46,7 +69,7 @@ function deploy_tmux() {
 }
 
 function deploy_vim() {
-  ##### VIM deployment
+  colorecho "Deploying vim"
   local vpath
   if [[ -d "$MY_SETUP_PATH/vim" ]]; then
     # Copy vim/vimrc to ~/.vimrc
@@ -63,7 +86,7 @@ function deploy_vim() {
 }
 
 function deploy_nvim () {
-  #### neovim deployment
+  colorecho "Deploying nvim"
   if [[ -d "$MY_SETUP_PATH/nvim" ]]; then
     mkdir -p ~/.config/
     cp -r "$MY_SETUP_PATH/nvim/" ~/.config
@@ -73,10 +96,11 @@ function deploy_nvim () {
 }
 
 function deploy_apt() {
-  ##### Install custom APT packages
+  colorecho "Deploying APT packages"
   local key_url
   local install_list
-  local tmpaptkeys=$(mktemp -d)
+  local tmpaptkeys
+  tmpaptkeys=$(mktemp -d)
   if [[ -d "$MY_SETUP_PATH/apt" ]]; then
     # Deploy custom apt repository
     cp "$MY_SETUP_PATH/apt/sources.list" /etc/apt/sources.list.d/exegol_user_sources.list
@@ -85,12 +109,11 @@ function deploy_apt() {
       wget -nv "$key_url" -O "$tmpaptkeys/$(echo "$key_url" | md5sum | cut -d ' ' -f1).key"
     done
     if [[ -n $(find "$tmpaptkeys" -type f -name "*.key") ]]; then
-      gpg --no-default-keyring --keyring=$tmpaptkeys/user_custom.gpg --batch --import $tmpaptkeys/*.key &&
-        gpg --no-default-keyring --keyring=$tmpaptkeys/user_custom.gpg --batch --output /etc/apt/trusted.gpg.d/user_custom.gpg --export --yes &&
+      gpg --no-default-keyring --keyring="$tmpaptkeys/user_custom.gpg" --batch --import "$tmpaptkeys/*.key" &&
+        gpg --no-default-keyring --keyring="$tmpaptkeys/user_custom.gpg" --batch --output /etc/apt/trusted.gpg.d/user_custom.gpg --export --yes &&
         chmod 644 /etc/apt/trusted.gpg.d/user_custom.gpg
     fi
     rm -rf "$tmpaptkeys"
-
     install_list=$(grep -vE "^(\s*|#.*)$" "$MY_SETUP_PATH/apt/packages.list" | tr "\n" " ")
     # Test if there is some package to install
     if [[ -n "$install_list" ]]; then
@@ -108,7 +131,7 @@ function deploy_apt() {
 }
 
 function deploy_python3() {
-  ##### Install custom PIP3 packages
+  colorecho "Deploying python3 packages"
   if [[ -d "$MY_SETUP_PATH/python3" ]]; then
     # Install every pip3 packages listed in the requirements.txt file
     pip3 install -r "$MY_SETUP_PATH/python3/requirements.txt"
@@ -120,22 +143,22 @@ function deploy_python3() {
 }
 
 function run_user_setup() {
+  colorecho "Executing user setup"
   # Executing user setup (or create the file)
   if [[ -f "$MY_SETUP_PATH/load_user_setup.sh" ]]; then
-    echo "[$(date +'%d-%m-%Y_%H-%M-%S')] ==== Loading user setup ($MY_SETUP_PATH/load_user_setup.sh) ===="
-    echo "[Exegol] Installing [green]my-resources[/green] user's defined custom setup ..."
+    colorecho "[$(date +'%d-%m-%Y_%H-%M-%S')] ==== Loading user setup ($MY_SETUP_PATH/load_user_setup.sh) ===="
+    colorecho "Installing my-resources user's defined custom setup ..."
     "$MY_SETUP_PATH"/load_user_setup.sh
   else
-    echo "[$(date +'%d-%m-%Y_%H-%M-%S')] ==== User setup loader missing, deploying it ($MY_SETUP_PATH/load_user_setup.sh) ===="
+    colorecho "[$(date +'%d-%m-%Y_%H-%M-%S')] ==== User setup loader missing, deploying it ($MY_SETUP_PATH/load_user_setup.sh) ===="
     cp /.exegol/skel/load_user_setup.sh "$MY_SETUP_PATH/load_user_setup.sh"
     chmod 760 "$MY_SETUP_PATH/load_user_setup.sh"
   fi
-
-  echo "[$(date +'%d-%m-%Y_%H-%M-%S')] ==== End of custom setups loading ===="
+  colorecho "[$(date +'%d-%m-%Y_%H-%M-%S')] ==== End of custom setups loading ===="
 }
 
 function deploy_firefox_addons() {
-  ##### firefox custom addons deployment
+  colorecho "Deploying Firefox Add-Ons"
   local addon_folder
   local addon_list
   if [[ -d "$MY_SETUP_PATH/firefox/" ]]; then
@@ -149,8 +172,7 @@ function deploy_firefox_addons() {
     else
       cp --preserve=mode /.exegol/skel/firefox/addons.txt "$MY_SETUP_PATH/firefox/addons.txt"
     fi
-    # shellcheck disable=SC2086
-    python3 /opt/tools/firefox/user-setup.py -L $addon_list -D $addon_folder
+    python3 /opt/tools/firefox/user-setup.py -L "$addon_list" -D "$addon_folder"
   else
     mkdir --parents "$MY_SETUP_PATH/firefox/addons" && chmod 770 -R "$MY_SETUP_PATH/firefox/addons"
     cp --preserve=mode /.exegol/skel/firefox/addons.txt "$MY_SETUP_PATH/firefox/addons.txt"
@@ -158,15 +180,15 @@ function deploy_firefox_addons() {
 }
 
 function deploy_bloodhound_config() {
+  colorecho "Deploying BloodHound User Config"
   [[ -f "$my_setup_bh_path/config.json" ]] && cp "$my_setup_bh_path/config.json" "$bh_config_homedir/config.json"
 }
 
 function deploy_bloodhound_customqueries_merge() {
+  colorecho "Merging User Custom Queries with Exegol Custom Queries for BloodHound"
   # Merge Exegol's customqueries.json file with the ones from my-resources
   local cq_merge_directory="$my_setup_bh_path/customqueries_merge"
-
   [[ ! -d "$cq_merge_directory" ]] && cp -r /.exegol/skel/bloodhound/customqueries_merge "$cq_merge_directory"
-
   if \
     [[ -f "$bh_config_homedir/customqueries.json" ]] && \
     [[ -n $(find "$cq_merge_directory" -type f -name "*.json") ]]; then
@@ -175,48 +197,39 @@ function deploy_bloodhound_customqueries_merge() {
 }
 
 function deploy_bloodhound_customqueries_replacement() {
-  # Replace Exegol's customqueries.json file with the merge of ones from my-resources
+  colorecho "Merging User Custom Queries for BloodHound, and overwriting Exegol Custom Queries"
   local cq_replacement_directory="$my_setup_bh_path/customqueries_replacement"
-
   [[ ! -d "$cq_replacement_directory" ]] && cp -r /.exegol/skel/bloodhound/customqueries_replacement "$cq_replacement_directory"
-
   if [[ -n $(find "$cq_replacement_directory" -type f -name "*.json") ]]; then
       bqm --verbose --ignore-default --output-path "$bqm_output_file" -i "$cq_replacement_directory"
   fi
 }
 
 function deploy_bloodhound() {
+  colorecho "Deploying BloodHound"
   local bh_config_homedir=~/.config/bloodhound
   local my_setup_bh_path="$MY_SETUP_PATH/bloodhound"
   # Use the dry-run flag to not create the file as bqm prompts if it already exists, hence it only generates a random filename
-  local bqm_output_file=$(mktemp --dry-run)
-
+  local bqm_output_file
+  bqm_output_file=$(mktemp --dry-run)
   [[ ! -d "$bh_config_homedir" ]] && mkdir -p "$bh_config_homedir"
   [[ ! -d "$my_setup_bh_path" ]] && cp -r /.exegol/skel/bloodhound "$my_setup_bh_path"
-
   deploy_bloodhound_config
-
   # If a user places Bloodhound json files in both folders merge and replacement,
   # replacement must be executed last to only keep the output of replacement.
   deploy_bloodhound_customqueries_merge
   deploy_bloodhound_customqueries_replacement
-
   if [[ -f "$bqm_output_file" ]]; then
     mv "$bqm_output_file" "$bh_config_homedir/customqueries.json" &&
-    echo "[Exegol] $bh_config_homedir/customqueries.json successfully replaced by $bqm_output_file"
+    colorecho "$bh_config_homedir/customqueries.json successfully replaced by $bqm_output_file"
   fi
 }
 
 # Starting
 # This procedure is supposed to be executed only once at the first startup, using a lockfile check
 
-echo "This log file is the result of the execution of the official and personal customization script"
-echo "[$(date +'%d-%m-%Y_%H-%M-%S')] ==== Loading custom setups (/.exegol/load_supported_setups.sh) ===="
-
-# Root my-resources PATH
-MY_ROOT_PATH="/opt/my-resources"
-# Setup directory for user customization
-MY_SETUP_PATH="$MY_ROOT_PATH/setup"
+colorecho "This log file is the result of the execution of the official and personal customization script"
+colorecho "[$(date +'%d-%m-%Y_%H-%M-%S')] ==== Loading custom setups (/.exegol/load_supported_setups.sh) ===="
 
 init
 
diff --git a/sources/assets/firefox/requirements.txt b/sources/assets/firefox/requirements.txt
index b3a74e8e5..5be48ee78 100644
--- a/sources/assets/firefox/requirements.txt
+++ b/sources/assets/firefox/requirements.txt
@@ -1,2 +1,3 @@
 R2Log
 requests
+cryptography
\ No newline at end of file
diff --git a/sources/assets/firefox/setup.py b/sources/assets/firefox/setup.py
index b0e9787e4..9a824d61e 100644
--- a/sources/assets/firefox/setup.py
+++ b/sources/assets/firefox/setup.py
@@ -17,16 +17,18 @@
 from time import sleep
 from R2Log import logger
 from glob import glob
+from cryptography.hazmat.primitives.serialization import pkcs7
+from cryptography.x509.oid import NameOID
 
 PATHNAME = "/root/.mozilla/firefox/**.Exegol/"
 
 # Define addons urls
 urls = [
-    "https://addons.mozilla.org/fr/firefox/addon/foxyproxy-standard/",
-    "https://addons.mozilla.org/fr/firefox/addon/darkreader/",
-    "https://addons.mozilla.org/fr/firefox/addon/uaswitcher/",
-    "https://addons.mozilla.org/fr/firefox/addon/cookie-editor/",
-    "https://addons.mozilla.org/fr/firefox/addon/wappalyzer/"
+    "https://addons.mozilla.org/en-US/firefox/addon/foxyproxy-standard/",
+    "https://addons.mozilla.org/en-US/firefox/addon/darkreader/",
+    "https://addons.mozilla.org/en-US/firefox/addon/uaswitcher/",
+    "https://addons.mozilla.org/en-US/firefox/addon/cookie-editor/",
+    "https://addons.mozilla.org/en-US/firefox/addon/wappalyzer/"
 ]
 
 # Define regex
@@ -53,11 +55,19 @@ def download_addon(link, addon_name):
         addon_file.write(addon_dl.content)
 
 
-def read_manifest(addon_path):
+def get_addon_id(addon_path):
     archive = zipfile.ZipFile(addon_path, 'r')
     manifest = archive.read('manifest.json').decode()
-    # Read the id in the manifest
-    addon_id = re.search(reid, manifest).group(1)
+    try:
+        # Read the id in the manifest
+        addon_id = re.search(reid, manifest).group(1)
+    except:
+        # Read the id in the mozilla.rsa file
+        cert = archive.read('META-INF/mozilla.rsa')
+        der_cert = pkcs7.load_der_pkcs7_certificates(cert)
+        extension_cert = der_cert[0]
+        ext_cert_name = extension_cert.subject
+        addon_id = ext_cert_name.get_attributes_for_oid(NameOID.COMMON_NAME)[0].value
     return addon_id
 
 
@@ -130,6 +140,9 @@ def import_bookmarks():
 
 if __name__ == "__main__":
 
+    # Initialize variables
+    install_ko = []
+
     # Create firefox profile Exegol
     logger.info("Creating Firefox profile")
     try:
@@ -149,13 +162,20 @@ def import_bookmarks():
         link, addon_name = get_link(url)
         # Download the addon
         download_addon(link, addon_name)
-        # Read manifest.json in the archive
-        addon_id = read_manifest("/tmp/" + addon_name)
-        install_addons(addon_name, addon_id, "/tmp/")
-        logger.success(f"{addon_name} installed sucessfully\n")
-        addon_list.append((addon_id, addon_name[0:-4], False))
-
-    logger.success("All addons were installed sucessfully\n")
+        try:
+            # Read manifest.json in the archive
+            addon_id = get_addon_id("/tmp/" + addon_name)
+            install_addons(addon_name, addon_id, "/tmp/")
+            logger.success(f"{addon_name} installed sucessfully\n")
+            addon_list.append((addon_id, addon_name[0:-4], False))
+        except:
+            install_ko.append("- " + addon_name)
+            logger.error(f"{addon_name} could not be installed\n")
+            continue
+    if install_ko:
+        logger.info("All addons from the list were installed sucessfully except:\n%s\n" % "\n".join(install_ko))
+    else:
+        logger.success("All addons from the list were installed sucessfully\n")
 
     # Run firefox to initialise profile
     logger.info("Initialising Firefox profile")
diff --git a/sources/assets/firefox/user-setup.py b/sources/assets/firefox/user-setup.py
index 6b5814d38..ea116f89b 100644
--- a/sources/assets/firefox/user-setup.py
+++ b/sources/assets/firefox/user-setup.py
@@ -5,7 +5,7 @@
 # Date created       : 07 march 2023
 # Python Version     : 3.*
 
-from setup import get_link, download_addon, read_manifest, install_addons, activate_addons
+from setup import get_link, download_addon, get_addon_id, install_addons, activate_addons
 from R2Log import logger
 from pathlib import Path
 from glob import glob
@@ -15,7 +15,7 @@
 import argparse
 
 PATHNAME = "/root/.mozilla/firefox/**.Exegol/"
-re_links = r'^https://addons\.mozilla\.org/fr/firefox/addon/[^/]+/?$'
+re_links = r'^https://addons\.mozilla\.org/[a-z]{2}(\-[A-Z]{2})?/firefox/addon/[^/]+/?$'
 
 def parse_args():
     arg_parser = argparse.ArgumentParser(description="Automatically installs addons from a list or folder containing .xpi files.")
@@ -26,10 +26,12 @@ def parse_args():
 
 if __name__ == "__main__":
 
+    # Initialize variables
     args = parse_args()
     addon_links = args.addon_links
     addon_folder = args.addon_folder
     install_ok = False
+    install_ko = []
 
     # Define a list containing all addons names and ids
     addon_list = []
@@ -47,13 +49,21 @@ def parse_args():
                 # Download the addon
                 download_addon(link, addon_name)
                 # Read manifest.json in the archive
-                addon_id = read_manifest("/tmp/" + addon_name)
-                install_addons(addon_name, addon_id, "/tmp/")
-                logger.success(f"{addon_name} installed sucessfully\n")
-                addon_list.append((addon_id, addon_name[0:-4], False))
-                install_ok = True
+                try:
+                    addon_id = get_addon_id("/tmp/" + addon_name)
+                    install_addons(addon_name, addon_id, "/tmp/")
+                    logger.success(f"{addon_name} installed sucessfully\n")
+                    addon_list.append((addon_id, addon_name[0:-4], False))
+                    install_ok = True
+                except:
+                    install_ko.append("- " + addon_name)
+                    logger.error(f"{addon_name} could not be installed\n")
+                    continue
         if install_ok:
-            logger.success("All addons from the list were installed sucessfully\n")
+            if install_ko:
+                logger.info("All addons from the list were installed sucessfully except:\n%s\n" % "\n".join(install_ko))
+            else:
+                logger.success("All addons from the list were installed sucessfully\n")
         else:
             logger.error("No addons were found in the list %s.\n" % addon_links)
 
@@ -61,7 +71,7 @@ def parse_args():
         if glob(addon_folder + "/*.xpi"):
             for addon_path in glob(addon_folder + "/*.xpi"):
                 addon_name = addon_path.split("/")[-1]
-                addon_id = read_manifest(addon_path)
+                addon_id = get_addon_id(addon_path)
                 install_addons(addon_name, addon_id, addon_folder)
                 logger.success(f"{addon_name} installed sucessfully\n")
                 addon_list.append((addon_id, addon_name[0:-4], False))