Teste isso:
Abra um terminal
Pressione Ctrl + Alt + T
Execute:
sudo -i
mv /home/user/downloads/firefox-*.tar.bz2 /opt
mv /home/user/downloads/thunderbird-*.tar.bz2 /opt
cd /opt
tar xjf firefox-*.tar.bz2
tar xjf thunderbird-*.tar.bz2
chmod -Rf 777 /opt
Para iniciar o Firefox, execute o script do firefox na pasta do firefox: / opt / firefox / firefox
Para iniciar o Thunderbird, execute o script thunderbird na pasta thunderbird: / opt / thunderbird / thunderbird
Para substituir a versão original à versão de desenvolvedores:
Abra um terminal
Pressione Ctrl + Alt + T
Execute:
sudo -i
cd /usr/bin
mv firefox firefox_old
mv thunderbird thunderbird_old
ln -s /opt/firefox/firefox /usr/bin/firefox
ln -s /opt/thunderbird/thunderbird /usr/bin/thunderbird