Add installation script proof of concept

scripts/install.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+FIREFOXFOLDER=~/.mozilla/firefox/
+PROFILENAME=""
+GNOMISHEXTRAS=false
+
+while getopts 'f:p:g' flag; do
+	case "${flag}" in    
+		f) FIREFOXFOLDER="${OPTARG}" ;;
+		p) PROFILENAME="${OPTARG}" ;;
+		g) GNOMISHEXTRAS=true ;;
+	esac
+done
+
+# Set and enter Firefox folder
+cd $FIREFOXFOLDER
+
+if test -z "$PROFILENAME" 
+	then
+		if [[ $(grep '\[Profile[^0]\]' profiles.ini) ]]
+			then PROFPATH=$(grep -E '^\[Profile|^Path|^Default' profiles.ini | grep -1 '^Default=1' | grep '^Path' | cut -c6-)
+			else PROFPATH=$(grep 'Path=' profiles.ini | sed 's/^Path=//')
+		fi
+	else
+	      PROFPATH=$PROFILENAME
+fi
+
+THEMEINSTALL="$FIREFOXFOLDER/$PROFPATH/chrome"
+
+git clone https://github.com/rafaelmardojai/firefox-gnome-theme.git $THEMEINSTALL
+
+if [ "$GNOMISHEXTRAS" = true ] ; then
+	cd $THEMEINSTALL
+    [[ -s customChrome.css ]] || echo >> customChrome.css
+	sed -i '1s/^/@import "theme\/hide-single-tab.css";\n/' customChrome.css
+	sed -i '2s/^/@import "theme\/matching-autocomplete-width.css";\n/' customChrome.css
+fi