#!/bin/bash
set -e

if [ -e /usr/bin/firefox ]; then
    /usr/bin/firefox
elif [ -e /usr/bin/firefox.real ]; then
    /usr/bin/firefox.real
elif [ -e /usr/bin/firefox-esr ]; then
    /usr/bin/firefox-esr
else
    echo "firefox not installed"
    zenity --error --text="firefox not installed"
fi
