The commands to install firefox.deb from the PPA are:
sudo -i add-apt-repository --yes ppa:mozillateam/ppa echo 'Package: * Pin: release o=LP-PPA-mozillateam Pin-Priority: 1001' >/etc/apt/preferences.d/60local apt install firefox firefox-locale-en
If you need more locales like `firefox-locale-el` add them to the last command.
The commands to install firefox.deb from the PPA are:
sudo -i mozillateam preferences. d/60local
add-apt-repository --yes ppa:mozillateam/ppa
echo 'Package: *
Pin: release o=LP-PPA-
Pin-Priority: 1001' >/etc/apt/
apt install firefox firefox-locale-en
If you need more locales like `firefox-locale-el` add them to the last command.