I would like to replace the version of Firefox that is already installed with Firefox ESR on Ubuntu 18.04.
I have downloaded it from http://www.mozilla.org/firefox/organizations/all.html#en-US
But I couldn't configure it successfully as I could in Ubuntu 14.04:
sudo tar -xvjf firefox-x.x.tar.bz2 -C /opt
sudo ln -s /opt/firefox/firefox /usr/bin/firefox
So I have reinstalled Ubuntu completely.
How can I achieve this?
