diff --git a/.gitattributes b/.gitattributes
index 498a943..ed814f1 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,5 +1,4 @@
 /.gitattributes export-ignore
-/.gitignore export-ignore
 /.github export-ignore
 /CODE_OF_CONDUCT.md export-ignore
-/README.org export-ignore
+/README.org export-ignore
\ No newline at end of file
diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
new file mode 100644
index 0000000..c1c8c94
--- /dev/null
+++ b/.github/workflows/shellcheck.yml
@@ -0,0 +1,18 @@
+on:
+  push:
+    branches:
+      - master
+      - photon-style
+  pull_request:
+    branches:
+     - master
+name: 'ShellCheck'
+
+jobs:
+  shellcheck:
+    name: Shellcheck
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Run ShellCheck
+      uses: ludeeus/action-shellcheck@master
diff --git a/CREDITS b/CREDITS
index 7ee9e72..b9a608b 100644
--- a/CREDITS
+++ b/CREDITS
@@ -66,6 +66,7 @@ W: https://github.com/medhefgo
     Contributors
 
 N: 7k5x
+E: 7k5xlp0onfire@gmail.com
 W: https://github.com/7k5x
 
 N: Burak Yigit Kaya
diff --git a/Install.sh b/Install.sh
deleted file mode 100755
index e87dcfd..0000000
--- a/Install.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-autocopy() {
-  local file=${1}
-  local target=${2}
-
-  if [ -e "${target}" ]; then
-    echo "${target} alreay exist."
-    echo "Now Backup.."
-    autocopy "${target}" "${target}.bak"
-    echo""
-  fi
-
-  cp -v "${file}" "${target}"
-}
-
-install_lepton() {
-  local userConfig="user.js"
-  autocopy "${userConfig}" "../${userConfig}"
-}
-install_lepton
diff --git a/README.org b/README.org
index 5ab36f1..99d22a8 100644
--- a/README.org
+++ b/README.org
@@ -63,7 +63,7 @@
       - Size: Fill(Changes dynamically to your size)
 
 ** Installation Guide
-
+*** Method 1. Manual installation
   1. Download files
      - Click the green ":arrow_down: Code"-button above
      - Select ":package: Download Zip"
@@ -79,7 +79,11 @@
      - Click the =Clear startup cache...= at the top of =about:support=
 
   If you prefer Photon, see [[https://github.com/black7375/Firefox-UI-Fix/tree/photon-style][Lepton's photon-style]].
-
+*** Method 2. Automatic installation(Currently Linux, MacOS only)
+  1. Run installer script
+     - Type =./install.sh= or =sh install.sh= in your terminal and press enter
+  2. Restart Firefox (Not needed if FireFox is already off)
+     - Click the =Clear startup cache...= at the top of =about:support=
 ** WHY Proton?
    I think a lot has improved.
 
diff --git a/install.sh b/install.sh
new file mode 100644
index 0000000..ce0f73b
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,107 @@
+#!/usr/bin/env bash
+# shellcheck disable=SC2185
+function copychrome(){
+  \cp -f userChrome.css ~/.mozilla/firefox/"$1"/chrome/userChrome.css
+  \cp -f userContent.css ~/.mozilla/firefox/"$1"/chrome/userContent.css
+  \cp -f -r icons ~/.mozilla/firefox/"$1"/chrome/
+}
+function backupchrome(){
+  if [ -f ~/.mozilla/firefox/"$1"/chrome/userChrome.css ];then
+    \mv -f ~/.mozilla/firefox/"$1"/chrome/userChrome.css ~/.mozilla/firefox/"$1"/chrome/userChrome.css.bak
+    \mv -f ~/.mozilla/firefox/"$1"/chrome/userContent.css ~/.mozilla/firefox/"$1"/chrome/userContent.css.bak
+  fi
+  cd ~/.mozilla/firefox/"$1"/chrome/icons || exit
+  if [ -f ~/.mozilla/firefox/"$1"/chrome/icons/bug.svg ];then
+    for file in *
+    do
+      \mv -f "$file" "${file/.svg/.svg.bak}"
+    done
+  fi
+  cd "$wherewasi" || exit
+}
+function backupjs(){
+  \mv -f ~/.mozilla/firefox/"$1"/user.js ~/.mozilla/firefox/"$1"/user.js.bak
+}
+function copyjs(){
+  \cp -f user.js ~/.mozilla/firefox/"$1"/user.js
+}
+function doneinstall()
+{
+  echo "Installation finished."
+}
+function install_lepton(){
+if [ -f ~/.mozilla/firefox/"$1"/user.js ]; then
+    printf "user.js exists. Do you want to make a backup of it?(Y/n): "
+    read -r
+    case $REPLY in
+      [Nn]* ) printf "Overwriting...\n";copyjs "$1";;
+      * )printf "Making a backup...\n";backupjs "$1";copyjs "$1";;
+    esac
+else
+    copyjs "$1"
+fi
+if [ -d "$HOME/.mozilla/firefox/$1/chrome" ]; then
+  printf "The directory chrome/ exists. Do you want to make a backup of it?(Y/n): "
+  read -r
+  case $REPLY in
+      [Nn]* ) printf "Overwriting...\n";copychrome "$1";doneinstall;;
+      * )printf "Making a backup...\n";backupchrome "$1";copychrome "$1";doneinstall;;
+  esac
+else
+  mkdir ~/.mozilla/firefox/"$1"/chrome/
+  copychrome "$1"
+  doneinstall
+fi
+}
+
+function multipleinstall(){
+  echo "You have more than 1 profile for your install. What will you use? Pick a number."
+  grep "$1" ~/.mozilla/firefox/profiles.ini | grep 'Default=' | cut -f 2 -d'=' > .installs
+  cat --number .installs
+  read -r
+  profiledir="$(head -"${REPLY}" .installs | tail +"${REPLY}")"
+  install_lepton "$profiledir"
+  rm -rf .installs
+}
+
+function install_option(){
+  if [ "$(grep -c "$1" ~/.mozilla/firefox/.folders)" == "1" ]; then
+    profiledir="$(grep "$1" ~/.mozilla/firefox/profiles.ini | grep 'Default=' | cut -f 2 -d'=')"
+    install_lepton "$profiledir"
+  else
+    multipleinstall "$1"
+  fi
+  rm -rf ~/.mozilla/firefox/.folders
+}
+function askinstall(){
+  printf "Will you install for ESR, Default, Dev, Nightly?(ESR/Default/Dev/Nightly): "
+  read -r
+  case $REPLY in
+    [Ee][Ss][Rr]) install_option .default-esr;;
+    [Dd][Ee][Ff][Aa][Uu][Ll][Tt]) install_option .default-release;;
+    [Dd][Ee][Vv]) install_option .dev-edition-default;;
+    [Nn][Ii][Gg][Hh][Tt][Ll][Yy]) install_option .default-nightly;;
+    *) echo "Unspecified.";exit;;
+  esac
+}
+wherewasi="$(pwd)"
+cd ~/.mozilla/firefox/ || exit
+find -maxdepth 1 | cut -f 2 -d"/" | sed -n '1!p' > .folders
+cd "$wherewasi" || exit
+if [ "$(grep -c "Default=" ~/.mozilla/firefox/installs.ini)" == "1" ]; then
+  #I have no idea how to sort this out. You fix it please.
+  if [ "$(grep -c ".dev-edition-default" ~/.mozilla/firefox/.folders)" == "1" ] || [ "$(grep -c ".dev-edition-default" ~/.mozilla/firefox/.folders)" -gt "1" ]; then
+    install_option .dev-edition-default
+  elif [ "$(grep -c ".default-release" ~/.mozilla/firefox/.folders)" == "1" ] || [ "$(grep -c ".default-release" ~/.mozilla/firefox/.folders)" -gt "1" ]; then
+    install_option .default-release
+  elif [ "$(grep -c ".default-nightly" ~/.mozilla/firefox/.folders)" == "1" ] || [ "$(grep -c ".default-nightly" ~/.mozilla/firefox/.folders)" -gt "1" ]; then
+    install_option .default-nightly
+  elif [ "$(grep -c ".default-esr" ~/.mozilla/firefox/.folders)" == "1" ] || [ "$(grep -c ".default-esr" ~/.mozilla/firefox/.folders)" == "1" ]; then
+    install_option .default-esr
+  else
+    echo "No Firefox profile found. Maybe you have never started FireFox. Please run at least 1 time to create a profile."
+    exit
+  fi
+else
+  askinstall
+fi