README

How to run

cd to the firefox-esr or thunderbird directory to which you want to
apply patches, and run /path/to/firefox-patches/build-firefox or
/path/to/thunderbird-patches/build-thunderbird, for instance:

apt-get source firefox-esr=60.5.1esr-1~deb8u1
cd firefox-esr-*
/home/me/mozilla/firefox-patches/build-firefox