#!/bin/bash

f=/opt/mozilla/thunderbird/chrome/icons/default/default

for i in 128 16 32 48 64 24 22 256;do
    mkdir -p /usr/local/share/icons/hicolor/$i'x'$i/apps/
    ln -sf $f$i.png /usr/local/share/icons/hicolor/$i'x'$i/apps/thunderbird.png
done