#!/bin/sh
(
echo "10"
echo "20"
echo "50"
echo "75"
echo "100"
) |
zenity --progress \
  --title="Installing Web Browser" \
  --text="Beginning installation..." \
  --percentage=0

if [ "$?" = -1 ] ; then
    zenity --error \
    --text="Installation was canceled."
else
    zenity --info \
    --text="To apply custom configuration, open LibreWolf and then close it. Doing so will generate the folder for LibreWolf. Once you've done that, click OK."
fi